choice
prompt "Xtensa Processor Configuration"
- default XTENSA_CPU_LINUX_BE
+ default XTENSA_VARIANT_FSF
-config XTENSA_CPU_LINUX_BE
- bool "linux_be"
- ---help---
- The linux_be processor configuration is the baseline Xtensa
- configurations included in this kernel and also used by
- binutils, gcc, and gdb. It contains no TIE, no coprocessors,
- and the following configuration options:
-
- Code Density Option 2 Misc Special Registers
- NSA/NSAU Instructions 128-bit Data Bus Width
- Processor ID 8K, 2-way I and D Caches
- Zero-Overhead Loops 2 Inst Address Break Registers
- Big Endian 2 Data Address Break Registers
- 64 General-Purpose Registers JTAG Interface and Trace Port
- 17 Interrupts MMU w/ TLBs and Autorefill
- 3 Interrupt Levels 8 Autorefill Ways (I/D TLBs)
- 3 Timers Unaligned Exceptions
+config XTENSA_VARIANT_FSF
+ bool "fsf"
endchoice
config MMU
# this architecture
# Core configuration.
-# (Use CPU=<xtensa_config> to use another default compiler.)
+# (Use VAR=<xtensa_config> to use another default compiler.)
-cpu-$(CONFIG_XTENSA_CPU_LINUX_BE) := linux_be
-cpu-$(CONFIG_XTENSA_CPU_LINUX_CUSTOM) := linux_custom
+variant-$(CONFIG_XTENSA_VARIANT_FSF) := fsf
+variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM) := custom
-CPU = $(cpu-y)
-export CPU
+VARIANT = $(variant-y)
+export VARIANT
# Platform configuration
PLATFORM = $(platform-y)
export PLATFORM
-CPPFLAGS += $(if $(KBUILD_SRC),-I$(srctree)/include/asm-xtensa/)
-CPPFLAGS += -Iinclude/asm
CFLAGS += -pipe -mlongcalls
KBUILD_DEFCONFIG := iss_defconfig
# Test for cross compiling
-ifneq ($(CPU),)
+ifneq ($(VARIANT),)
COMPILE_ARCH = $(shell uname -m)
ifneq ($(COMPILE_ARCH), xtensa)
ifndef CROSS_COMPILE
- CROSS_COMPILE = xtensa_$(CPU)-
+ CROSS_COMPILE = xtensa_$(VARIANT)-
endif
endif
endif
archprepare: $(archinc)/.platform
-# Update machine cpu and platform symlinks if something which affects
+# Update processor variant and platform symlinks if something which affects
# them changed.
$(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/auto.conf
- @echo ' SYMLINK $(archinc)/xtensa/config -> $(archinc)/xtensa/config-$(CPU)'
+ @echo ' SYMLINK $(archinc)/variant -> $(archinc)/variant-$(VARIANT)'
$(Q)mkdir -p $(archinc)
- $(Q)mkdir -p $(archinc)/xtensa
- $(Q)ln -fsn $(srctree)/$(archinc)/xtensa/config-$(CPU) $(archinc)/xtensa/config
+ $(Q)ln -fsn $(srctree)/$(archinc)/variant-$(VARIANT) $(archinc)/variant
@echo ' SYMLINK $(archinc)/platform -> $(archinc)/platform-$(PLATFORM)'
$(Q)ln -fsn $(srctree)/$(archinc)/platform-$(PLATFORM) $(archinc)/platform
@touch $@
$(Q)$(MAKE) $(build)=$(boot) $@
CLEAN_FILES += arch/xtensa/vmlinux.lds \
- $(archinc)/platform $(archinc)/xtensa/config \
+ $(archinc)/platform $(archinc)/variant \
$(archinc)/.platform
define archhelp
-#include <xtensa/config/specreg.h>
-#include <xtensa/config/core.h>
-
#include <asm/bootparam.h>
-
-#define _ASMLANGUAGE
-#include <xtensa/config/specreg.h>
-#include <xtensa/config/core.h>
-#include <xtensa/cacheasm.h>
-
+#include <asm/variant/core.h>
+#include <asm/regs.h>
+#include <asm/asmmacro.h>
+#include <asm/cacheasm.h>
/*
* RB-Data: RedBoot data/bss
* P: Boot-Parameters
/* Note: The assembler cannot relax "addi a0, a0, ..." to an
l32r, so we load to a4 first. */
- addi a4, a0, __start - __start_a0
- mov a0, a4
+ # addi a4, a0, __start - __start_a0
+ # mov a0, a4
+
+ movi a4, __start
+ movi a5, __start_a0
+ add a4, a0, a4
+ sub a0, a4, a5
+
movi a4, __start
movi a5, __reloc_end
/* We have to flush and invalidate the caches here before we jump. */
#if XCHAL_DCACHE_IS_WRITEBACK
- dcache_writeback_all a5, a6
+
+ ___flush_dcache_all a5 a6
+
#endif
- icache_invalidate_all a5, a6
+
+ ___invalidate_icache_all a5 a6
+ isync
movi a11, _reloc
jx a11
/* jump to the kernel */
2:
#if XCHAL_DCACHE_IS_WRITEBACK
- dcache_writeback_all a5, a6
+
+ ___flush_dcache_all a5 a6
+
#endif
- icache_invalidate_all a5, a6
+
+ ___invalidate_icache_all a5 a6
+
+ isync
movi a5, __start
movi a3, boot_initrd_start
#
# Processor type and features
#
-CONFIG_XTENSA_ARCH_LINUX_BE=y
-# CONFIG_XTENSA_ARCH_LINUX_LE is not set
-# CONFIG_XTENSA_ARCH_LINUX_TEST is not set
-# CONFIG_XTENSA_ARCH_S5 is not set
-# CONFIG_XTENSA_CUSTOM is not set
+CONFIG_XTENSA_VARIANT_FSF=y
CONFIG_MMU=y
# CONFIG_XTENSA_UNALIGNED_USER is not set
# CONFIG_PREEMPT is not set
*/
#include <linux/linkage.h>
-#include <asm/ptrace.h>
-#include <asm/ptrace.h>
#include <asm/current.h>
#include <asm/asm-offsets.h>
-#include <asm/pgtable.h>
#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/thread_info.h>
#if XCHAL_UNALIGNED_LOAD_EXCEPTION || XCHAL_UNALIGNED_STORE_EXCEPTION
extui a5, a4, INSN_OP0, 4 # get insn.op0 nibble
-#if XCHAL_HAVE_NARROW
+#if XCHAL_HAVE_DENSITY
_beqi a5, OP0_L32I_N, .Lload # L32I.N, jump
addi a6, a5, -OP0_S32I_N
_beqz a6, .Lstore # S32I.N, do a store
#endif
__src_b a3, a5, a6 # a3 has the data word
-#if XCHAL_HAVE_NARROW
+#if XCHAL_HAVE_DENSITY
addi a7, a7, 2 # increment PC (assume 16-bit insn)
extui a5, a4, INSN_OP0, 4
1:
-#if XCHAL_HAVE_LOOP
- rsr a3, LEND # check if we reached LEND
- bne a7, a3, 1f
- rsr a3, LCOUNT # and LCOUNT != 0
- beqz a3, 1f
- addi a3, a3, -1 # decrement LCOUNT and set
+#if XCHAL_HAVE_LOOPS
+ rsr a5, LEND # check if we reached LEND
+ bne a7, a5, 1f
+ rsr a5, LCOUNT # and LCOUNT != 0
+ beqz a5, 1f
+ addi a5, a5, -1 # decrement LCOUNT and set
rsr a7, LBEG # set PC to LBEGIN
- wsr a3, LCOUNT
+ wsr a5, LCOUNT
#endif
1: wsr a7, EPC_1 # skip load instruction
movi a6, 0 # mask: ffffffff:00000000
-#if XCHAL_HAVE_NARROW
+#if XCHAL_HAVE_DENSITY
addi a7, a7, 2 # incr. PC,assume 16-bit instruction
extui a5, a4, INSN_OP0, 4 # extract OP0
/* Get memory address */
1:
-#if XCHAL_HAVE_LOOP
- rsr a3, LEND # check if we reached LEND
- bne a7, a3, 1f
- rsr a3, LCOUNT # and LCOUNT != 0
- beqz a3, 1f
- addi a3, a3, -1 # decrement LCOUNT and set
+#if XCHAL_HAVE_LOOPS
+ rsr a4, LEND # check if we reached LEND
+ bne a7, a4, 1f
+ rsr a4, LCOUNT # and LCOUNT != 0
+ beqz a4, 1f
+ addi a4, a4, -1 # decrement LCOUNT and set
rsr a7, LBEG # set PC to LBEGIN
- wsr a3, LCOUNT
+ wsr a4, LCOUNT
#endif
1: wsr a7, EPC_1 # skip store instruction
/* Restore working register */
+ l32i a8, a2, PT_AREG8
l32i a7, a2, PT_AREG7
l32i a6, a2, PT_AREG6
l32i a5, a2, PT_AREG5
mov a1, a2
rsr a0, PS
- bbsi.l a2, PS_UM_SHIFT, 1f # jump if user mode
+ bbsi.l a2, PS_UM_BIT, 1f # jump if user mode
movi a0, _kernel_exception
jx a0
rsync
retw
-#endif
ENTRY(save_coprocessor_extra)
entry sp, 16
XCHAL_CP7_SA_CONTENTS_LIBDB
.word 0xFC000000 /* invalid register number,marks end of table*/
_xtensa_reginfo_table_end:
+#endif
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/signal.h>
-#include <xtensa/coreasm.h>
+#include <asm/tlbflush.h>
/* Unimplemented features. */
movi a2, 1
extui a3, a3, 0, 1 # a3 = PS.INTLEVEL[0]
moveqz a3, a2, a0 # a3 = 1 iff interrupt exception
- movi a2, PS_WOE_MASK
+ movi a2, 1 << PS_WOE_BIT
or a3, a3, a2
rsr a0, EXCCAUSE
xsr a3, PS
/* Jump if we are returning from kernel exceptions. */
1: l32i a3, a1, PT_PS
- _bbsi.l a3, PS_UM_SHIFT, 2f
+ _bbsi.l a3, PS_UM_BIT, 2f
j kernel_exception_exit
/* Specific to a user exception exit:
* (Hint: There is only one user exception frame on stack)
*/
- movi a3, PS_WOE_MASK
+ movi a3, 1 << PS_WOE_BIT
_bbsi.l a4, TIF_NEED_RESCHED, 3f
_bbci.l a4, TIF_SIGPENDING, 4f
ENTRY(debug_exception)
rsr a0, EPS + XCHAL_DEBUGLEVEL
- bbsi.l a0, PS_EXCM_SHIFT, 1f # exception mode
+ bbsi.l a0, PS_EXCM_BIT, 1f # exception mode
/* Set EPC_1 and EXCCAUSE */
/* Restore PS to the value before the debug exc but with PS.EXCM set.*/
- movi a2, 1 << PS_EXCM_SHIFT
+ movi a2, 1 << PS_EXCM_BIT
or a2, a0, a2
movi a0, debug_exception # restore a3, debug jump vector
wsr a2, PS
/* Switch to kernel/user stack, restore jump vector, and save a0 */
- bbsi.l a2, PS_UM_SHIFT, 2f # jump if user mode
+ bbsi.l a2, PS_UM_BIT, 2f # jump if user mode
addi a2, a1, -16-PT_SIZE # assume kernel stack
s32i a0, a2, PT_AREG0
wsr a1, WINDOWBASE
rsync
- movi a1, PS_WOE_MASK | 1
+ movi a1, (1 << PS_WOE_BIT) | 1
wsr a1, PS
rsync
*/
rsr a0, PS
- _bbci.l a0, PS_UM_SHIFT, 1f
+ _bbci.l a0, PS_UM_BIT, 1f
/* User space: Setup a dummy frame and kill application.
* Note: We assume EXC_TABLE_KSTK contains a valid stack pointer.
l32i a1, a3, EXC_TABLE_KSTK
wsr a3, EXCSAVE_1
- movi a4, PS_WOE_MASK | 1
+ movi a4, (1 << PS_WOE_BIT) | 1
wsr a4, PS
rsync
rsr a1, PTEVADDR
srli a1, a1, PAGE_SHIFT
slli a1, a1, PAGE_SHIFT # ptevaddr & PAGE_MASK
- addi a1, a1, DTLB_WAY_PGTABLE # ... + way_number
+ addi a1, a1, DTLB_WAY_PGD # ... + way_number
wdtlb a0, a1
dsync
mov a1, a2
rsr a2, PS
- bbsi.l a2, PS_UM_SHIFT, 1f
+ bbsi.l a2, PS_UM_BIT, 1f
j _kernel_exception
1: j _user_exception
mov a1, a2
rsr a2, PS
- bbsi.l a2, PS_UM_SHIFT, 1f
+ bbsi.l a2, PS_UM_BIT, 1f
j _kernel_exception
1: j _user_exception
/* Disable ints while we manipulate the stack pointer; spill regs. */
- movi a5, PS_EXCM_MASK | LOCKLEVEL
+ movi a5, (1 << PS_EXCM_BIT) | LOCKLEVEL
xsr a5, PS
rsr a3, EXCSAVE_1
rsync
* Kevin Chea
*/
-#include <xtensa/cacheasm.h>
#include <asm/processor.h>
#include <asm/page.h>
+#include <asm/cacheasm.h>
/*
* This module contains the entry code for kernel images. It performs the
*
*/
- .macro iterate from, to , cmd
- .ifeq ((\to - \from) & ~0xfff)
- \cmd \from
- iterate "(\from+1)", \to, \cmd
- .endif
- .endm
-
/*
* _start
*
/* Disable interrupts and exceptions. */
- movi a0, XCHAL_PS_EXCM_MASK
+ movi a0, LOCKLEVEL
wsr a0, PS
/* Preserve the pointer to the boot parameter list in EXCSAVE_1 */
movi a1, 15
wsr a0, ICOUNTLEVEL
- .macro reset_dbreak num
- wsr a0, DBREAKC + \num
- .endm
-
- iterate 0, XCHAL_NUM_IBREAK-1, reset_dbreak
+ .set _index, 0
+ .rept XCHAL_NUM_DBREAK - 1
+ wsr a0, DBREAKC + _index
+ .set _index, _index + 1
+ .endr
#endif
/* Clear CCOUNT (not really necessary, but nice) */
/* Disable all timers. */
- .macro reset_timer num
- wsr a0, CCOMPARE_0 + \num
- .endm
- iterate 0, XCHAL_NUM_TIMERS-1, reset_timer
+ .set _index, 0
+ .rept XCHAL_NUM_TIMERS - 1
+ wsr a0, CCOMPARE + _index
+ .set _index, _index + 1
+ .endr
/* Interrupt initialization. */
rsync
/* Initialize the caches.
- * Does not include flushing writeback d-cache.
- * a6, a7 are just working registers (clobbered).
+ * a2, a3 are just working registers (clobbered).
*/
- icache_reset a2, a3
- dcache_reset a2, a3
+#if XCHAL_DCACHE_LINE_LOCKABLE
+ ___unlock_dcache_all a2 a3
+#endif
+
+#if XCHAL_ICACHE_LINE_LOCKABLE
+ ___unlock_icache_all a2 a3
+#endif
+
+ ___invalidate_dcache_all a2 a3
+ ___invalidate_icache_all a2 a3
+
+ isync
/* Unpack data sections
*
movi a2, _bss_start # start of BSS
movi a3, _bss_end # end of BSS
-1: addi a2, a2, 4
+ __loopt a2, a3, a4, 2
s32i a0, a2, 0
- blt a2, a3, 1b
+ __endla a2, a4, 4
#if XCHAL_DCACHE_IS_WRITEBACK
* instructions/data are available.
*/
- dcache_writeback_all a2, a3
+ ___flush_dcache_all a2 a3
#endif
/* Setup stack and enable window exceptions (keep irqs disabled) */
/*
- * arch/xtensa/kernel/pci-dma.c
+ * arch/xtensa/pci-dma.c
*
* DMA coherent memory allocation.
*
*/
void *
-dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp)
+dma_alloc_coherent(struct device *dev,size_t size,dma_addr_t *handle,gfp_t flag)
{
- void *ret;
+ unsigned long ret;
+ unsigned long uncached = 0;
/* ignore region speicifiers */
- gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
- if (dev == NULL || (*dev->dma_mask < 0xffffffff))
- gfp |= GFP_DMA;
- ret = (void *)__get_free_pages(gfp, get_order(size));
+ flag &= ~(__GFP_DMA | __GFP_HIGHMEM);
- if (ret != NULL) {
- memset(ret, 0, size);
- *handle = virt_to_bus(ret);
+ if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
+ flag |= GFP_DMA;
+ ret = (unsigned long)__get_free_pages(flag, get_order(size));
+
+ if (ret == 0)
+ return NULL;
+
+ /* We currently don't support coherent memory outside KSEG */
+
+ if (ret < XCHAL_KSEG_CACHED_VADDR
+ || ret >= XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_SIZE)
+ BUG();
+
+
+ if (ret != 0) {
+ memset((void*) ret, 0, size);
+ uncached = ret+XCHAL_KSEG_BYPASS_VADDR-XCHAL_KSEG_CACHED_VADDR;
+ *handle = virt_to_bus((void*)ret);
+ __flush_invalidate_dcache_range(ret, size);
}
- return (void*) BYPASS_ADDR((unsigned long)ret);
+
+ return (void*)uncached;
}
void dma_free_coherent(struct device *hwdev, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
- free_pages(CACHED_ADDR((unsigned long)vaddr), get_order(size));
+ long addr=(long)vaddr+XCHAL_KSEG_CACHED_VADDR-XCHAL_KSEG_BYPASS_VADDR;
+
+ if (addr < 0 || addr >= XCHAL_KSEG_SIZE)
+ BUG();
+
+ free_pages(addr, get_order(size));
}
-// TODO verify coprocessor handling
/*
* arch/xtensa/kernel/process.c
*
#include <asm/irq.h>
#include <asm/atomic.h>
#include <asm/asm-offsets.h>
-#include <asm/coprocessor.h>
+#include <asm/regs.h>
extern void ret_from_fork(void);
EXPORT_SYMBOL(pm_power_off);
-#if XCHAL_CP_NUM > 0
-
-/*
- * Coprocessor ownership.
- */
-
-coprocessor_info_t coprocessor_info[] = {
- { 0, XTENSA_CPE_CP0_OFFSET },
- { 0, XTENSA_CPE_CP1_OFFSET },
- { 0, XTENSA_CPE_CP2_OFFSET },
- { 0, XTENSA_CPE_CP3_OFFSET },
- { 0, XTENSA_CPE_CP4_OFFSET },
- { 0, XTENSA_CPE_CP5_OFFSET },
- { 0, XTENSA_CPE_CP6_OFFSET },
- { 0, XTENSA_CPE_CP7_OFFSET },
-};
-
-#endif
-
/*
* Powermanagement idle function, if any is provided by the platform.
*/
void exit_thread(void)
{
- release_coprocessors(current); /* Empty macro if no CPs are defined */
}
void flush_thread(void)
{
- release_coprocessors(current); /* Empty macro if no CPs are defined */
}
/*
*/
elfregs->pc = regs->pc;
- elfregs->ps = (regs->ps & ~XCHAL_PS_EXCM_MASK);
+ elfregs->ps = (regs->ps & ~(1 << PS_EXCM_BIT));
elfregs->exccause = regs->exccause;
elfregs->excvaddr = regs->excvaddr;
elfregs->windowbase = regs->windowbase;
*/
regs->pc = elfregs->pc;
- regs->ps = (elfregs->ps | XCHAL_PS_EXCM_MASK);
+ regs->ps = (elfregs->ps | (1 << PS_EXCM_BIT));
regs->exccause = elfregs->exccause;
regs->excvaddr = elfregs->excvaddr;
regs->windowbase = elfregs->windowbase;
int
dump_task_fpu(struct pt_regs *regs, struct task_struct *task, elf_fpregset_t *r)
{
-/* see asm/coprocessor.h for this magic number 16 */
-#if XTENSA_CP_EXTRA_SIZE > 16
- do_save_fpregs (r, regs, task);
-
- /* For now, bit 16 means some extra state may be present: */
-// FIXME!! need to track to return more accurate mask
- return 0x10000 | XCHAL_CP_MASK;
-#else
return 0; /* no coprocessors active on this processor */
-#endif
}
/*
/* Note: PS.EXCM is not set while user task is running;
* its being set in regs is for exception handling
* convenience. */
- tmp = (regs->ps & ~XCHAL_PS_EXCM_MASK);
+ tmp = (regs->ps & ~(1 << PS_EXCM_BIT));
break;
case REG_WB:
tmp = regs->windowbase;
#include <asm/page.h>
#include <asm/setup.h>
-#include <xtensa/config/system.h>
-
#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
struct screen_info screen_info = { 0, 24, 0, 0, 0, 80, 0, 0, 0, 24, 1, 16};
#endif
/* high-level stuff */
seq_printf(f,"processor\t: 0\n"
"vendor_id\t: Tensilica\n"
- "model\t\t: Xtensa " XCHAL_HW_RELEASE_NAME "\n"
+ "model\t\t: Xtensa " XCHAL_HW_VERSION_NAME "\n"
"core ID\t\t: " XCHAL_CORE_ID "\n"
"build ID\t: 0x%x\n"
"byte order\t: %s\n"
XCHAL_NUM_TIMERS,
XCHAL_DEBUGLEVEL);
- /* Coprocessors */
-#if XCHAL_HAVE_CP
- seq_printf(f, "coprocessors\t: %d\n", XCHAL_CP_NUM);
-#else
- seq_printf(f, "coprocessors\t: none\n");
-#endif
-
- /* {I,D}{RAM,ROM} and XLMI */
- seq_printf(f,"inst ROMs\t: %d\n"
- "inst RAMs\t: %d\n"
- "data ROMs\t: %d\n"
- "data RAMs\t: %d\n"
- "XLMI ports\t: %d\n",
- XCHAL_NUM_IROM,
- XCHAL_NUM_IRAM,
- XCHAL_NUM_DROM,
- XCHAL_NUM_DRAM,
- XCHAL_NUM_XLMI);
-
/* Cache */
seq_printf(f,"icache line size: %d\n"
"icache ways\t: %d\n"
XCHAL_DCACHE_WAYS,
XCHAL_DCACHE_SIZE);
- /* MMU */
- seq_printf(f,"ASID bits\t: %d\n"
- "ASID invalid\t: %d\n"
- "ASID kernel\t: %d\n"
- "rings\t\t: %d\n"
- "itlb ways\t: %d\n"
- "itlb AR ways\t: %d\n"
- "dtlb ways\t: %d\n"
- "dtlb AR ways\t: %d\n",
- XCHAL_MMU_ASID_BITS,
- XCHAL_MMU_ASID_INVALID,
- XCHAL_MMU_ASID_KERNEL,
- XCHAL_MMU_RINGS,
- XCHAL_ITLB_WAYS,
- XCHAL_ITLB_ARF_WAYS,
- XCHAL_DTLB_WAYS,
- XCHAL_DTLB_ARF_WAYS);
-
return 0;
}
*
*/
-#include <xtensa/config/core.h>
-#include <xtensa/hal.h>
+#include <asm/variant/core.h>
+#include <asm/coprocessor.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/smp.h>
* handler, or the user mode value doesn't matter (e.g. PS.OWB).
*/
err |= __get_user(ps, &sc->sc_ps);
- regs->ps = (regs->ps & ~XCHAL_PS_CALLINC_MASK)
- | (ps & XCHAL_PS_CALLINC_MASK);
+ regs->ps = (regs->ps & ~PS_CALLINC_MASK)
+ | (ps & PS_CALLINC_MASK);
/* Additional corruption checks */
static int
save_cpextra (struct _cpstate *buf)
{
-#if (XCHAL_EXTRA_SA_SIZE == 0) && (XCHAL_CP_NUM == 0)
+#if XCHAL_CP_NUM == 0
return 0;
#else
/* Flush generated code out of the data cache */
- if (err == 0)
- __flush_invalidate_cache_range((unsigned long)codemem, 6UL);
+ if (err == 0) {
+ __invalidate_icache_range((unsigned long)codemem, 6UL);
+ __flush_invalidate_dcache_range((unsigned long)codemem, 6UL);
+ }
return err;
}
* interrupts in the first place:
*/
local_save_flags (ps);
- local_irq_restore((ps & ~XCHAL_PS_INTLEVEL_MASK) |
- (regs->ps & XCHAL_PS_INTLEVEL_MASK) );
+ local_irq_restore((ps & ~PS_INTLEVEL_MASK) |
+ (regs->ps & PS_INTLEVEL_MASK) );
if (syscallnr > __NR_Linux_syscalls) {
regs->areg[2] = -ENOSYS;
#define USER 0x02
#define COPROCESSOR(x) \
-{ XCHAL_EXCCAUSE_COPROCESSOR ## x ## _DISABLED, USER, fast_coprocessor }
+{ EXCCAUSE_COPROCESSOR ## x ## _DISABLED, USER, fast_coprocessor }
typedef struct {
int cause;
dispatch_init_table_t __init dispatch_init_table[] = {
-{ XCHAL_EXCCAUSE_ILLEGAL_INSTRUCTION, 0, do_illegal_instruction},
-{ XCHAL_EXCCAUSE_SYSTEM_CALL, KRNL, fast_syscall_kernel },
-{ XCHAL_EXCCAUSE_SYSTEM_CALL, USER, fast_syscall_user },
-{ XCHAL_EXCCAUSE_SYSTEM_CALL, 0, system_call },
-/* XCHAL_EXCCAUSE_INSTRUCTION_FETCH unhandled */
-/* XCHAL_EXCCAUSE_LOAD_STORE_ERROR unhandled*/
-{ XCHAL_EXCCAUSE_LEVEL1_INTERRUPT, 0, do_interrupt },
-{ XCHAL_EXCCAUSE_ALLOCA, USER|KRNL, fast_alloca },
-/* XCHAL_EXCCAUSE_INTEGER_DIVIDE_BY_ZERO unhandled */
-/* XCHAL_EXCCAUSE_PRIVILEGED unhandled */
+{ EXCCAUSE_ILLEGAL_INSTRUCTION, 0, do_illegal_instruction},
+{ EXCCAUSE_SYSTEM_CALL, KRNL, fast_syscall_kernel },
+{ EXCCAUSE_SYSTEM_CALL, USER, fast_syscall_user },
+{ EXCCAUSE_SYSTEM_CALL, 0, system_call },
+/* EXCCAUSE_INSTRUCTION_FETCH unhandled */
+/* EXCCAUSE_LOAD_STORE_ERROR unhandled*/
+{ EXCCAUSE_LEVEL1_INTERRUPT, 0, do_interrupt },
+{ EXCCAUSE_ALLOCA, USER|KRNL, fast_alloca },
+/* EXCCAUSE_INTEGER_DIVIDE_BY_ZERO unhandled */
+/* EXCCAUSE_PRIVILEGED unhandled */
#if XCHAL_UNALIGNED_LOAD_EXCEPTION || XCHAL_UNALIGNED_STORE_EXCEPTION
#ifdef CONFIG_UNALIGNED_USER
-{ XCHAL_EXCCAUSE_UNALIGNED, USER, fast_unaligned },
+{ EXCCAUSE_UNALIGNED, USER, fast_unaligned },
#else
-{ XCHAL_EXCCAUSE_UNALIGNED, 0, do_unaligned_user },
+{ EXCCAUSE_UNALIGNED, 0, do_unaligned_user },
#endif
-{ XCHAL_EXCCAUSE_UNALIGNED, KRNL, fast_unaligned },
+{ EXCCAUSE_UNALIGNED, KRNL, fast_unaligned },
#endif
-{ XCHAL_EXCCAUSE_ITLB_MISS, 0, do_page_fault },
-{ XCHAL_EXCCAUSE_ITLB_MISS, USER|KRNL, fast_second_level_miss},
-{ XCHAL_EXCCAUSE_ITLB_MULTIHIT, 0, do_multihit },
-{ XCHAL_EXCCAUSE_ITLB_PRIVILEGE, 0, do_page_fault },
-/* XCHAL_EXCCAUSE_SIZE_RESTRICTION unhandled */
-{ XCHAL_EXCCAUSE_FETCH_CACHE_ATTRIBUTE, 0, do_page_fault },
-{ XCHAL_EXCCAUSE_DTLB_MISS, USER|KRNL, fast_second_level_miss},
-{ XCHAL_EXCCAUSE_DTLB_MISS, 0, do_page_fault },
-{ XCHAL_EXCCAUSE_DTLB_MULTIHIT, 0, do_multihit },
-{ XCHAL_EXCCAUSE_DTLB_PRIVILEGE, 0, do_page_fault },
-/* XCHAL_EXCCAUSE_DTLB_SIZE_RESTRICTION unhandled */
-{ XCHAL_EXCCAUSE_STORE_CACHE_ATTRIBUTE, USER|KRNL, fast_store_prohibited },
-{ XCHAL_EXCCAUSE_STORE_CACHE_ATTRIBUTE, 0, do_page_fault },
-{ XCHAL_EXCCAUSE_LOAD_CACHE_ATTRIBUTE, 0, do_page_fault },
+{ EXCCAUSE_ITLB_MISS, 0, do_page_fault },
+{ EXCCAUSE_ITLB_MISS, USER|KRNL, fast_second_level_miss},
+{ EXCCAUSE_ITLB_MULTIHIT, 0, do_multihit },
+{ EXCCAUSE_ITLB_PRIVILEGE, 0, do_page_fault },
+/* EXCCAUSE_SIZE_RESTRICTION unhandled */
+{ EXCCAUSE_FETCH_CACHE_ATTRIBUTE, 0, do_page_fault },
+{ EXCCAUSE_DTLB_MISS, USER|KRNL, fast_second_level_miss},
+{ EXCCAUSE_DTLB_MISS, 0, do_page_fault },
+{ EXCCAUSE_DTLB_MULTIHIT, 0, do_multihit },
+{ EXCCAUSE_DTLB_PRIVILEGE, 0, do_page_fault },
+/* EXCCAUSE_DTLB_SIZE_RESTRICTION unhandled */
+{ EXCCAUSE_STORE_CACHE_ATTRIBUTE, USER|KRNL, fast_store_prohibited },
+{ EXCCAUSE_STORE_CACHE_ATTRIBUTE, 0, do_page_fault },
+{ EXCCAUSE_LOAD_CACHE_ATTRIBUTE, 0, do_page_fault },
/* XCCHAL_EXCCAUSE_FLOATING_POINT unhandled */
#if (XCHAL_CP_MASK & 1)
COPROCESSOR(0),
#include <asm/thread_info.h>
#include <asm/processor.h>
+#define WINDOW_VECTORS_SIZE 0x180
+
/*
* User exception vector. (Exceptions with PS.UM == 1, PS.EXCM == 0)
/* Check for kernel double exception (usually fatal). */
rsr a3, PS
- _bbci.l a3, PS_UM_SHIFT, .Lksp
+ _bbci.l a3, PS_UM_BIT, .Lksp
/* Check if we are currently handling a window exception. */
/* Note: We don't need to indicate that we enter a critical section. */
movi a3, XCHAL_WINDOW_VECTORS_VADDR
_bltu a0, a3, .Lfixup
- addi a3, a3, XSHAL_WINDOW_VECTORS_SIZE
+ addi a3, a3, WINDOW_VECTORS_SIZE
_bgeu a0, a3, .Lfixup
/* Window overflow/underflow exception. Get stack pointer. */
wsr a2, DEPC # save stack pointer temporarily
rsr a0, PS
- extui a0, a0, XCHAL_PS_OWB_SHIFT, XCHAL_PS_OWB_BITS
+ extui a0, a0, PS_OWB_SHIFT, 4
wsr a0, WINDOWBASE
rsync
.Lksp: /* a0: a0, a1: a1, a2: a2, a3: trashed, depc: depc, excsave: a3 */
rsr a3, EXCCAUSE
- beqi a3, XCHAL_EXCCAUSE_ITLB_MISS, 1f
- addi a3, a3, -XCHAL_EXCCAUSE_DTLB_MISS
+ beqi a3, EXCCAUSE_ITLB_MISS, 1f
+ addi a3, a3, -EXCCAUSE_DTLB_MISS
bnez a3, .Lunrecoverable
1: movi a3, fast_second_level_miss_double_kernel
jx a3
#include <asm-generic/vmlinux.lds.h>
-#define _NOCLANGUAGE
-#undef __ASSEMBLER__
-#include <xtensa/config/core.h>
-#include <xtensa/config/system.h>
+#include <asm/variant/core.h>
OUTPUT_ARCH(xtensa)
ENTRY(_start)
-#if XCHAL_MEMORY_ORDER == XTHAL_BIGENDIAN
+#ifdef __XTENSA_EB__
jiffies = jiffies_64 + 4;
#else
jiffies = jiffies_64;
#endif
-#define KERNELOFFSET 0x1000
+#define KERNELOFFSET 0xd0001000
/* Note: In the following macros, it would be nice to specify only the
vector name and section kind and construct "sym" and "section" using
SECTIONS
{
- . = XCHAL_KSEG_CACHED_VADDR + KERNELOFFSET;
+ . = KERNELOFFSET;
/* .text section */
_text = .;
/* Initialization code and data: */
- . = ALIGN(1<<XCHAL_MMU_MIN_PTE_PAGE_SIZE);
+ . = ALIGN(1 << 12);
__init_begin = .;
.init.text : {
_sinittext = .;
.dummy)
SECTION_VECTOR (_DebugInterruptVector_literal,
.DebugInterruptVector.literal,
- XCHAL_INTLEVEL_VECTOR_VADDR(XCHAL_DEBUGLEVEL) - 4,
+ XCHAL_DEBUG_VECTOR_VADDR - 4,
SIZEOF(.WindowVectors.text),
.WindowVectors.text)
SECTION_VECTOR (_DebugInterruptVector_text,
.DebugInterruptVector.text,
- XCHAL_INTLEVEL_VECTOR_VADDR(XCHAL_DEBUGLEVEL),
+ XCHAL_DEBUG_VECTOR_VADDR,
4,
.DebugInterruptVector.literal)
SECTION_VECTOR (_KernelExceptionVector_literal,
.KernelExceptionVector.literal,
- XCHAL_KERNELEXC_VECTOR_VADDR - 4,
+ XCHAL_KERNEL_VECTOR_VADDR - 4,
SIZEOF(.DebugInterruptVector.text),
.DebugInterruptVector.text)
SECTION_VECTOR (_KernelExceptionVector_text,
.KernelExceptionVector.text,
- XCHAL_KERNELEXC_VECTOR_VADDR,
+ XCHAL_KERNEL_VECTOR_VADDR,
4,
.KernelExceptionVector.literal)
SECTION_VECTOR (_UserExceptionVector_literal,
.UserExceptionVector.literal,
- XCHAL_USEREXC_VECTOR_VADDR - 4,
+ XCHAL_USER_VECTOR_VADDR - 4,
SIZEOF(.KernelExceptionVector.text),
.KernelExceptionVector.text)
SECTION_VECTOR (_UserExceptionVector_text,
.UserExceptionVector.text,
- XCHAL_USEREXC_VECTOR_VADDR,
+ XCHAL_USER_VECTOR_VADDR,
4,
.UserExceptionVector.literal)
SECTION_VECTOR (_DoubleExceptionVector_literal,
.DoubleExceptionVector.literal)
. = (LOADADDR( .DoubleExceptionVector.text ) + SIZEOF( .DoubleExceptionVector.text ) + 3) & ~ 3;
- . = ALIGN(1<<XCHAL_MMU_MIN_PTE_PAGE_SIZE);
+ . = ALIGN(1 << 12);
__init_end = .;
#include <asm/errno.h>
#include <linux/linkage.h>
-#define _ASMLANGUAGE
-#include <xtensa/config/core.h>
+#include <asm/variant/core.h>
/*
* computes a partial checksum, e.g. for TCP/UDP fragments
* Copyright (C) 2002 - 2005 Tensilica Inc.
*/
-#include <xtensa/coreasm.h>
+#include <asm/variant/core.h>
.macro src_b r, w0, w1
#ifdef __XTENSA_EB__
* Copyright (C) 2002 Tensilica Inc.
*/
-#include <xtensa/coreasm.h>
+#include <asm/variant/core.h>
/*
* void *memset(void *dst, int c, size_t length)
* Copyright (C) 2002 Tensilica Inc.
*/
-#include <xtensa/coreasm.h>
+#include <asm/variant/core.h>
#include <linux/errno.h>
/* Load or store instructions that may cause exceptions use the EX macro. */
* Copyright (C) 2002 Tensilica Inc.
*/
-#include <xtensa/coreasm.h>
+#include <asm/variant/core.h>
/* Load or store instructions that may cause exceptions use the EX macro. */
* a11/ original length
*/
-#include <xtensa/coreasm.h>
+#include <asm/variant/core.h>
#ifdef __XTENSA_EB__
#define ALIGN(R, W0, W1) src R, W0, W1
#include <asm/system.h>
#include <asm/pgalloc.h>
-unsigned long asid_cache = ASID_FIRST_VERSION;
+unsigned long asid_cache = ASID_USER_FIRST;
void bad_page_fault(struct pt_regs*, unsigned long, int);
/*
return;
}
- is_write = (exccause == XCHAL_EXCCAUSE_STORE_CACHE_ATTRIBUTE) ? 1 : 0;
- is_exec = (exccause == XCHAL_EXCCAUSE_ITLB_PRIVILEGE ||
- exccause == XCHAL_EXCCAUSE_ITLB_MISS ||
- exccause == XCHAL_EXCCAUSE_FETCH_CACHE_ATTRIBUTE) ? 1 : 0;
+ is_write = (exccause == EXCCAUSE_STORE_CACHE_ATTRIBUTE) ? 1 : 0;
+ is_exec = (exccause == EXCCAUSE_ITLB_PRIVILEGE ||
+ exccause == EXCCAUSE_ITLB_MISS ||
+ exccause == EXCCAUSE_FETCH_CACHE_ATTRIBUTE) ? 1 : 0;
#if 0
printk("[%s:%d:%08x:%d:%08x:%s%s]\n", current->comm, current->pid,
if (min_low_pfn > max_pfn)
panic("No memory found!\n");
- max_low_pfn = max_pfn < MAX_LOW_MEMORY >> PAGE_SHIFT ?
- max_pfn : MAX_LOW_MEMORY >> PAGE_SHIFT;
+ max_low_pfn = max_pfn < MAX_MEM_PFN >> PAGE_SHIFT ?
+ max_pfn : MAX_MEM_PFN >> PAGE_SHIFT;
/* Find an area to use for the bootmem bitmap. */
/* Set rasid register to a known value. */
- set_rasid_register (ASID_ALL_RESERVED);
+ set_rasid_register (ASID_USER_FIRST);
/* Set PTEVADDR special register to the start of the page
* table, which is in kernel mappable space (ie. not
#include <linux/linkage.h>
#include <asm/page.h>
#include <asm/pgtable.h>
-
-#include <xtensa/cacheasm.h>
-#include <xtensa/cacheattrasm.h>
+#include <asm/asmmacro.h>
+#include <asm/cacheasm.h>
/* clear_page (page) */
retw
-
/*
- * void __flush_invalidate_cache_all(void)
+ * void __invalidate_icache_page(ulong start)
*/
-ENTRY(__flush_invalidate_cache_all)
+ENTRY(__invalidate_icache_page)
entry sp, 16
- dcache_writeback_inv_all a2, a3
- icache_invalidate_all a2, a3
- retw
-/*
- * void __invalidate_icache_all(void)
- */
+ ___invalidate_icache_page a2 a3
+ isync
-ENTRY(__invalidate_icache_all)
- entry sp, 16
- icache_invalidate_all a2, a3
retw
/*
- * void __flush_invalidate_dcache_all(void)
+ * void __invalidate_dcache_page(ulong start)
*/
-ENTRY(__flush_invalidate_dcache_all)
+ENTRY(__invalidate_dcache_page)
entry sp, 16
- dcache_writeback_inv_all a2, a3
- retw
-
-/*
- * void __flush_invalidate_cache_range(ulong start, ulong size)
- */
+ ___invalidate_dcache_page a2 a3
+ dsync
-ENTRY(__flush_invalidate_cache_range)
- entry sp, 16
- mov a4, a2
- mov a5, a3
- dcache_writeback_inv_region a4, a5, a6
- icache_invalidate_region a2, a3, a4
retw
/*
- * void __invalidate_icache_page(ulong start)
+ * void __flush_invalidate_dcache_page(ulong start)
*/
-ENTRY(__invalidate_icache_page)
+ENTRY(__flush_invalidate_dcache_page)
entry sp, 16
- movi a3, PAGE_SIZE
- icache_invalidate_region a2, a3, a4
- retw
-/*
- * void __invalidate_dcache_page(ulong start)
- */
+ ___flush_invalidate_dcache_page a2 a3
-ENTRY(__invalidate_dcache_page)
- entry sp, 16
- movi a3, PAGE_SIZE
- dcache_invalidate_region a2, a3, a4
+ dsync
retw
/*
- * void __invalidate_icache_range(ulong start, ulong size)
+ * void __flush_dcache_page(ulong start)
*/
-ENTRY(__invalidate_icache_range)
+ENTRY(__flush_dcache_page)
entry sp, 16
- icache_invalidate_region a2, a3, a4
- retw
-/*
- * void __invalidate_dcache_range(ulong start, ulong size)
- */
+ ___flush_dcache_page a2 a3
-ENTRY(__invalidate_dcache_range)
- entry sp, 16
- dcache_invalidate_region a2, a3, a4
+ dsync
retw
-/*
- * void __flush_dcache_page(ulong start)
- */
-ENTRY(__flush_dcache_page)
- entry sp, 16
- movi a3, PAGE_SIZE
- dcache_writeback_region a2, a3, a4
- retw
/*
- * void __flush_invalidate_dcache_page(ulong start)
+ * void __invalidate_icache_range(ulong start, ulong size)
*/
-ENTRY(__flush_invalidate_dcache_page)
+ENTRY(__invalidate_icache_range)
entry sp, 16
- movi a3, PAGE_SIZE
- dcache_writeback_inv_region a2, a3, a4
+
+ ___invalidate_icache_range a2 a3 a4
+ isync
+
retw
/*
ENTRY(__flush_invalidate_dcache_range)
entry sp, 16
- dcache_writeback_inv_region a2, a3, a4
- retw
-/*
- * void __invalidate_dcache_all(void)
- */
+ ___flush_invalidate_dcache_range a2 a3 a4
+ dsync
-ENTRY(__invalidate_dcache_all)
- entry sp, 16
- dcache_invalidate_all a2, a3
retw
/*
- * void __flush_invalidate_dcache_page_phys(ulong start)
+ * void _flush_dcache_range(ulong start, ulong size)
*/
-ENTRY(__flush_invalidate_dcache_page_phys)
+ENTRY(__flush_dcache_range)
entry sp, 16
- movi a3, XCHAL_DCACHE_SIZE
- movi a4, PAGE_MASK | 1
- addi a2, a2, 1
-
-1: addi a3, a3, -XCHAL_DCACHE_LINESIZE
-
- ldct a6, a3
+ ___flush_dcache_range a2 a3 a4
dsync
- and a6, a6, a4
- beq a6, a2, 2f
- bgeui a3, 2, 1b
- retw
-2: diwbi a3, 0
- bgeui a3, 2, 1b
retw
-ENTRY(check_dcache_low0)
- entry sp, 16
-
- movi a3, XCHAL_DCACHE_SIZE / 4
- movi a4, PAGE_MASK | 1
- addi a2, a2, 1
-
-1: addi a3, a3, -XCHAL_DCACHE_LINESIZE
-
- ldct a6, a3
- dsync
- and a6, a6, a4
- beq a6, a2, 2f
- bgeui a3, 2, 1b
- retw
-
-2: j 2b
-
-ENTRY(check_dcache_high0)
- entry sp, 16
-
- movi a5, XCHAL_DCACHE_SIZE / 4
- movi a3, XCHAL_DCACHE_SIZE / 2
- movi a4, PAGE_MASK | 1
- addi a2, a2, 1
-
-1: addi a3, a3, -XCHAL_DCACHE_LINESIZE
- addi a5, a5, -XCHAL_DCACHE_LINESIZE
-
- ldct a6, a3
- dsync
- and a6, a6, a4
- beq a6, a2, 2f
- bgeui a5, 2, 1b
- retw
-
-2: j 2b
+/*
+ * void _invalidate_dcache_range(ulong start, ulong size)
+ */
-ENTRY(check_dcache_low1)
+ENTRY(__invalidate_dcache_range)
entry sp, 16
- movi a5, XCHAL_DCACHE_SIZE / 4
- movi a3, XCHAL_DCACHE_SIZE * 3 / 4
- movi a4, PAGE_MASK | 1
- addi a2, a2, 1
+ ___invalidate_dcache_range a2 a3 a4
-1: addi a3, a3, -XCHAL_DCACHE_LINESIZE
- addi a5, a5, -XCHAL_DCACHE_LINESIZE
- ldct a6, a3
- dsync
- and a6, a6, a4
- beq a6, a2, 2f
- bgeui a5, 2, 1b
retw
-2: j 2b
+/*
+ * void _invalidate_icache_all(void)
+ */
-ENTRY(check_dcache_high1)
+ENTRY(__invalidate_icache_all)
entry sp, 16
- movi a5, XCHAL_DCACHE_SIZE / 4
- movi a3, XCHAL_DCACHE_SIZE
- movi a4, PAGE_MASK | 1
- addi a2, a2, 1
-
-1: addi a3, a3, -XCHAL_DCACHE_LINESIZE
- addi a5, a5, -XCHAL_DCACHE_LINESIZE
+ ___invalidate_icache_all a2 a3
+ isync
- ldct a6, a3
- dsync
- and a6, a6, a4
- beq a6, a2, 2f
- bgeui a5, 2, 1b
retw
-2: j 2b
-
-
/*
- * void __invalidate_icache_page_phys(ulong start)
+ * void _flush_invalidate_dcache_all(void)
*/
-ENTRY(__invalidate_icache_page_phys)
+ENTRY(__flush_invalidate_dcache_all)
entry sp, 16
- movi a3, XCHAL_ICACHE_SIZE
- movi a4, PAGE_MASK | 1
- addi a2, a2, 1
-
-1: addi a3, a3, -XCHAL_ICACHE_LINESIZE
-
- lict a6, a3
- isync
- and a6, a6, a4
- beq a6, a2, 2f
- bgeui a3, 2, 1b
- retw
+ ___flush_invalidate_dcache_all a2 a3
+ dsync
-2: iii a3, 0
- bgeui a3, 2, 1b
retw
+/*
+ * void _invalidate_dcache_all(void)
+ */
-#if 0
-
- movi a3, XCHAL_DCACHE_WAYS - 1
- movi a4, PAGE_SIZE
-
-1: mov a5, a2
- add a6, a2, a4
-
-2: diwbi a5, 0
- diwbi a5, XCHAL_DCACHE_LINESIZE
- diwbi a5, XCHAL_DCACHE_LINESIZE * 2
- diwbi a5, XCHAL_DCACHE_LINESIZE * 3
-
- addi a5, a5, XCHAL_DCACHE_LINESIZE * 4
- blt a5, a6, 2b
-
- addi a3, a3, -1
- addi a2, a2, XCHAL_DCACHE_SIZE / XCHAL_DCACHE_WAYS
- bgez a3, 1b
-
- retw
-
-ENTRY(__invalidate_icache_page_index)
+ENTRY(__invalidate_dcache_all)
entry sp, 16
- movi a3, XCHAL_ICACHE_WAYS - 1
- movi a4, PAGE_SIZE
-
-1: mov a5, a2
- add a6, a2, a4
-
-2: iii a5, 0
- iii a5, XCHAL_ICACHE_LINESIZE
- iii a5, XCHAL_ICACHE_LINESIZE * 2
- iii a5, XCHAL_ICACHE_LINESIZE * 3
-
- addi a5, a5, XCHAL_ICACHE_LINESIZE * 4
- blt a5, a6, 2b
-
- addi a3, a3, -1
- addi a2, a2, XCHAL_ICACHE_SIZE / XCHAL_ICACHE_WAYS
- bgez a3, 2b
+ ___invalidate_dcache_all a2 a3
+ dsync
retw
-#endif
-
-
-
-
-
-
static inline void __flush_itlb_all (void)
{
- int way, index;
+ int w, i;
- for (way = 0; way < XCHAL_ITLB_ARF_WAYS; way++) {
- for (index = 0; index < ITLB_ENTRIES_PER_ARF_WAY; index++) {
- int entry = way + (index << PAGE_SHIFT);
- invalidate_itlb_entry_no_isync (entry);
+ for (w = 0; w < ITLB_ARF_WAYS; w++) {
+ for (i = 0; i < (1 << XCHAL_ITLB_ARF_ENTRIES_LOG2); i++) {
+ int e = w + (i << PAGE_SHIFT);
+ invalidate_itlb_entry_no_isync(e);
}
}
asm volatile ("isync\n");
static inline void __flush_dtlb_all (void)
{
- int way, index;
+ int w, i;
- for (way = 0; way < XCHAL_DTLB_ARF_WAYS; way++) {
- for (index = 0; index < DTLB_ENTRIES_PER_ARF_WAY; index++) {
- int entry = way + (index << PAGE_SHIFT);
- invalidate_dtlb_entry_no_isync (entry);
+ for (w = 0; w < DTLB_ARF_WAYS; w++) {
+ for (i = 0; i < (1 << XCHAL_DTLB_ARF_ENTRIES_LOG2); i++) {
+ int e = w + (i << PAGE_SHIFT);
+ invalidate_dtlb_entry_no_isync(e);
}
}
asm volatile ("isync\n");
void flush_tlb_mm(struct mm_struct *mm)
{
-#if 0
- printk("[tlbmm<%lx>]\n", (unsigned long)mm->context);
-#endif
-
if (mm == current->active_mm) {
int flags;
local_save_flags(flags);
- get_new_mmu_context(mm, asid_cache);
- set_rasid_register(ASID_INSERT(mm->context));
+ __get_new_mmu_context(mm);
+ __load_mmu_context(mm);
local_irq_restore(flags);
}
else
mm->context = 0;
}
+#define _ITLB_ENTRIES (ITLB_ARF_WAYS << XCHAL_ITLB_ARF_ENTRIES_LOG2)
+#define _DTLB_ENTRIES (DTLB_ARF_WAYS << XCHAL_DTLB_ARF_ENTRIES_LOG2)
+#if _ITLB_ENTRIES > _DTLB_ENTRIES
+# define _TLB_ENTRIES _ITLB_ENTRIES
+#else
+# define _TLB_ENTRIES _DTLB_ENTRIES
+#endif
+
void flush_tlb_range (struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
#endif
local_save_flags(flags);
- if (end-start + (PAGE_SIZE-1) <= SMALLEST_NTLB_ENTRIES << PAGE_SHIFT) {
+ if (end-start + (PAGE_SIZE-1) <= _TLB_ENTRIES << PAGE_SHIFT) {
int oldpid = get_rasid_register();
set_rasid_register (ASID_INSERT(mm->context));
start &= PAGE_MASK;
set_rasid_register(oldpid);
} else {
- get_new_mmu_context(mm, asid_cache);
- if (mm == current->active_mm)
- set_rasid_register(ASID_INSERT(mm->context));
+ flush_tlb_mm(mm);
}
local_irq_restore(flags);
}
struct mm_struct* mm = vma->vm_mm;
unsigned long flags;
int oldpid;
-#if 0
- printk("[tlbpage<%02lx,%08lx>]\n",
- (unsigned long)mm->context, page);
-#endif
if(mm->context == NO_CONTEXT)
return;
set_rasid_register(oldpid);
local_irq_restore(flags);
-
-#if 0
- flush_tlb_all();
- return;
-#endif
-}
-
-
-#ifdef DEBUG_TLB
-
-#define USE_ITLB 0
-#define USE_DTLB 1
-
-struct way_config_t {
- int indicies;
- int indicies_log2;
- int pgsz_log2;
- int arf;
-};
-
-static struct way_config_t itlb[XCHAL_ITLB_WAYS] =
-{
- { XCHAL_ITLB_SET(XCHAL_ITLB_WAY0_SET, ENTRIES),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY0_SET, ENTRIES_LOG2),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY0_SET, PAGESZ_LOG2_MIN),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY0_SET, ARF)
- },
- { XCHAL_ITLB_SET(XCHAL_ITLB_WAY1_SET, ENTRIES),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY1_SET, ENTRIES_LOG2),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY1_SET, PAGESZ_LOG2_MIN),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY1_SET, ARF)
- },
- { XCHAL_ITLB_SET(XCHAL_ITLB_WAY2_SET, ENTRIES),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY2_SET, ENTRIES_LOG2),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY2_SET, PAGESZ_LOG2_MIN),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY2_SET, ARF)
- },
- { XCHAL_ITLB_SET(XCHAL_ITLB_WAY3_SET, ENTRIES),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY3_SET, ENTRIES_LOG2),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY3_SET, PAGESZ_LOG2_MIN),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY3_SET, ARF)
- },
- { XCHAL_ITLB_SET(XCHAL_ITLB_WAY4_SET, ENTRIES),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY4_SET, ENTRIES_LOG2),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY4_SET, PAGESZ_LOG2_MIN),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY4_SET, ARF)
- },
- { XCHAL_ITLB_SET(XCHAL_ITLB_WAY5_SET, ENTRIES),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY5_SET, ENTRIES_LOG2),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY5_SET, PAGESZ_LOG2_MIN),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY5_SET, ARF)
- },
- { XCHAL_ITLB_SET(XCHAL_ITLB_WAY6_SET, ENTRIES),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY6_SET, ENTRIES_LOG2),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY6_SET, PAGESZ_LOG2_MIN),
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY6_SET, ARF)
- }
-};
-
-static struct way_config_t dtlb[XCHAL_DTLB_WAYS] =
-{
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY0_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY0_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY0_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY0_SET, ARF)
- },
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY1_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY1_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY1_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY1_SET, ARF)
- },
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY2_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY2_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY2_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY2_SET, ARF)
- },
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY3_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY3_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY3_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY3_SET, ARF)
- },
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY4_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY4_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY4_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY4_SET, ARF)
- },
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY5_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY5_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY5_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY5_SET, ARF)
- },
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY6_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY6_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY6_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY6_SET, ARF)
- },
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY7_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY7_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY7_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY7_SET, ARF)
- },
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY8_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY8_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY8_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY8_SET, ARF)
- },
- { XCHAL_DTLB_SET(XCHAL_DTLB_WAY9_SET, ENTRIES),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY9_SET, ENTRIES_LOG2),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY9_SET, PAGESZ_LOG2_MIN),
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY9_SET, ARF)
- }
-};
-
-/* Total number of entries: */
-#define ITLB_TOTAL_ENTRIES \
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY0_SET, ENTRIES) + \
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY1_SET, ENTRIES) + \
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY2_SET, ENTRIES) + \
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY3_SET, ENTRIES) + \
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY4_SET, ENTRIES) + \
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY5_SET, ENTRIES) + \
- XCHAL_ITLB_SET(XCHAL_ITLB_WAY6_SET, ENTRIES)
-#define DTLB_TOTAL_ENTRIES \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY0_SET, ENTRIES) + \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY1_SET, ENTRIES) + \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY2_SET, ENTRIES) + \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY3_SET, ENTRIES) + \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY4_SET, ENTRIES) + \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY5_SET, ENTRIES) + \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY6_SET, ENTRIES) + \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY7_SET, ENTRIES) + \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY8_SET, ENTRIES) + \
- XCHAL_DTLB_SET(XCHAL_DTLB_WAY9_SET, ENTRIES)
-
-
-typedef struct {
- unsigned va;
- unsigned pa;
- unsigned char asid;
- unsigned char ca;
- unsigned char way;
- unsigned char index;
- unsigned char pgsz_log2; /* 0 .. 32 */
- unsigned char type; /* 0=ITLB 1=DTLB */
-} tlb_dump_entry_t;
-
-/* Return -1 if a precedes b, +1 if a follows b, 0 if same: */
-int cmp_tlb_dump_info( tlb_dump_entry_t *a, tlb_dump_entry_t *b )
-{
- if (a->asid < b->asid) return -1;
- if (a->asid > b->asid) return 1;
- if (a->va < b->va) return -1;
- if (a->va > b->va) return 1;
- if (a->pa < b->pa) return -1;
- if (a->pa > b->pa) return 1;
- if (a->ca < b->ca) return -1;
- if (a->ca > b->ca) return 1;
- if (a->way < b->way) return -1;
- if (a->way > b->way) return 1;
- if (a->index < b->index) return -1;
- if (a->index > b->index) return 1;
- return 0;
-}
-
-void sort_tlb_dump_info( tlb_dump_entry_t *t, int n )
-{
- int i, j;
- /* Simple O(n*n) sort: */
- for (i = 0; i < n-1; i++)
- for (j = i+1; j < n; j++)
- if (cmp_tlb_dump_info(t+i, t+j) > 0) {
- tlb_dump_entry_t tmp = t[i];
- t[i] = t[j];
- t[j] = tmp;
- }
-}
-
-
-static tlb_dump_entry_t itlb_dump_info[ITLB_TOTAL_ENTRIES];
-static tlb_dump_entry_t dtlb_dump_info[DTLB_TOTAL_ENTRIES];
-
-
-static inline char *way_type (int type)
-{
- return type ? "autorefill" : "non-autorefill";
-}
-
-void print_entry (struct way_config_t *way_info,
- unsigned int way,
- unsigned int index,
- unsigned int virtual,
- unsigned int translation)
-{
- char valid_chr;
- unsigned int va, pa, asid, ca;
-
- va = virtual &
- ~((1 << (way_info->pgsz_log2 + way_info->indicies_log2)) - 1);
- asid = virtual & ((1 << XCHAL_MMU_ASID_BITS) - 1);
- pa = translation & ~((1 << way_info->pgsz_log2) - 1);
- ca = translation & ((1 << XCHAL_MMU_CA_BITS) - 1);
- valid_chr = asid ? 'V' : 'I';
-
- /* Compute and incorporate the effect of the index bits on the
- * va. It's more useful for kernel debugging, since we always
- * want to know the effective va anyway. */
-
- va += index << way_info->pgsz_log2;
-
- printk ("\t[%d,%d] (%c) vpn 0x%.8x ppn 0x%.8x asid 0x%.2x am 0x%x\n",
- way, index, valid_chr, va, pa, asid, ca);
-}
-
-void print_itlb_entry (struct way_config_t *way_info, int way, int index)
-{
- print_entry (way_info, way, index,
- read_itlb_virtual (way + (index << way_info->pgsz_log2)),
- read_itlb_translation (way + (index << way_info->pgsz_log2)));
-}
-
-void print_dtlb_entry (struct way_config_t *way_info, int way, int index)
-{
- print_entry (way_info, way, index,
- read_dtlb_virtual (way + (index << way_info->pgsz_log2)),
- read_dtlb_translation (way + (index << way_info->pgsz_log2)));
-}
-
-void dump_itlb (void)
-{
- int way, index;
-
- printk ("\nITLB: ways = %d\n", XCHAL_ITLB_WAYS);
-
- for (way = 0; way < XCHAL_ITLB_WAYS; way++) {
- printk ("\nWay: %d, Entries: %d, MinPageSize: %d, Type: %s\n",
- way, itlb[way].indicies,
- itlb[way].pgsz_log2, way_type(itlb[way].arf));
- for (index = 0; index < itlb[way].indicies; index++) {
- print_itlb_entry(&itlb[way], way, index);
- }
- }
-}
-
-void dump_dtlb (void)
-{
- int way, index;
-
- printk ("\nDTLB: ways = %d\n", XCHAL_DTLB_WAYS);
-
- for (way = 0; way < XCHAL_DTLB_WAYS; way++) {
- printk ("\nWay: %d, Entries: %d, MinPageSize: %d, Type: %s\n",
- way, dtlb[way].indicies,
- dtlb[way].pgsz_log2, way_type(dtlb[way].arf));
- for (index = 0; index < dtlb[way].indicies; index++) {
- print_dtlb_entry(&dtlb[way], way, index);
- }
- }
-}
-
-void dump_tlb (tlb_dump_entry_t *tinfo, struct way_config_t *config,
- int entries, int ways, int type, int show_invalid)
-{
- tlb_dump_entry_t *e = tinfo;
- int way, i;
-
- /* Gather all info: */
- for (way = 0; way < ways; way++) {
- struct way_config_t *cfg = config + way;
- for (i = 0; i < cfg->indicies; i++) {
- unsigned wayindex = way + (i << cfg->pgsz_log2);
- unsigned vv = (type ? read_dtlb_virtual (wayindex)
- : read_itlb_virtual (wayindex));
- unsigned pp = (type ? read_dtlb_translation (wayindex)
- : read_itlb_translation (wayindex));
-
- /* Compute and incorporate the effect of the index bits on the
- * va. It's more useful for kernel debugging, since we always
- * want to know the effective va anyway. */
-
- e->va = (vv & ~((1 << (cfg->pgsz_log2 + cfg->indicies_log2)) - 1));
- e->va += (i << cfg->pgsz_log2);
- e->pa = (pp & ~((1 << cfg->pgsz_log2) - 1));
- e->asid = (vv & ((1 << XCHAL_MMU_ASID_BITS) - 1));
- e->ca = (pp & ((1 << XCHAL_MMU_CA_BITS) - 1));
- e->way = way;
- e->index = i;
- e->pgsz_log2 = cfg->pgsz_log2;
- e->type = type;
- e++;
- }
- }
-#if 1
- /* Sort by ASID and VADDR: */
- sort_tlb_dump_info (tinfo, entries);
-#endif
-
- /* Display all sorted info: */
- printk ("\n%cTLB dump:\n", (type ? 'D' : 'I'));
- for (e = tinfo, i = 0; i < entries; i++, e++) {
-#if 0
- if (e->asid == 0 && !show_invalid)
- continue;
-#endif
- printk ("%c way=%d i=%d ASID=%02X V=%08X -> P=%08X CA=%X (%d %cB)\n",
- (e->type ? 'D' : 'I'), e->way, e->index,
- e->asid, e->va, e->pa, e->ca,
- (1 << (e->pgsz_log2 % 10)),
- " kMG"[e->pgsz_log2 / 10]
- );
- }
-}
-
-void dump_tlbs2 (int showinv)
-{
- dump_tlb (itlb_dump_info, itlb, ITLB_TOTAL_ENTRIES, XCHAL_ITLB_WAYS, 0, showinv);
- dump_tlb (dtlb_dump_info, dtlb, DTLB_TOTAL_ENTRIES, XCHAL_DTLB_WAYS, 1, showinv);
-}
-
-void dump_all_tlbs (void)
-{
- dump_tlbs2 (1);
-}
-
-void dump_valid_tlbs (void)
-{
- dump_tlbs2 (0);
}
-
-void dump_tlbs (void)
-{
- dump_itlb();
- dump_dtlb();
-}
-
-void dump_cache_tag(int dcache, int idx)
-{
- int w, i, s, e;
- unsigned long tag, index;
- unsigned long num_lines, num_ways, cache_size, line_size;
-
- num_ways = dcache ? XCHAL_DCACHE_WAYS : XCHAL_ICACHE_WAYS;
- cache_size = dcache ? XCHAL_DCACHE_SIZE : XCHAL_ICACHE_SIZE;
- line_size = dcache ? XCHAL_DCACHE_LINESIZE : XCHAL_ICACHE_LINESIZE;
-
- num_lines = cache_size / num_ways;
-
- s = 0; e = num_lines;
-
- if (idx >= 0)
- e = (s = idx * line_size) + 1;
-
- for (i = s; i < e; i+= line_size) {
- printk("\nline %#08x:", i);
- for (w = 0; w < num_ways; w++) {
- index = w * num_lines + i;
- if (dcache)
- __asm__ __volatile__("ldct %0, %1\n\t"
- : "=a"(tag) : "a"(index));
- else
- __asm__ __volatile__("lict %0, %1\n\t"
- : "=a"(tag) : "a"(index));
-
- printk(" %#010lx", tag);
- }
- }
- printk ("\n");
-}
-
-void dump_icache(int index)
-{
- unsigned long data, addr;
- int w, i;
-
- const unsigned long num_ways = XCHAL_ICACHE_WAYS;
- const unsigned long cache_size = XCHAL_ICACHE_SIZE;
- const unsigned long line_size = XCHAL_ICACHE_LINESIZE;
- const unsigned long num_lines = cache_size / num_ways / line_size;
-
- for (w = 0; w < num_ways; w++) {
- printk ("\nWay %d", w);
-
- for (i = 0; i < line_size; i+= 4) {
- addr = w * num_lines + index * line_size + i;
- __asm__ __volatile__("licw %0, %1\n\t"
- : "=a"(data) : "a"(addr));
- printk(" %#010lx", data);
- }
- }
- printk ("\n");
-}
-
-void dump_cache_tags(void)
-{
- printk("Instruction cache\n");
- dump_cache_tag(0, -1);
- printk("Data cache\n");
- dump_cache_tag(1, -1);
-}
-
-#endif
#include <asm/uaccess.h>
#include <asm/irq.h>
-#include <xtensa/simcall.h>
+#include <asm/platform/simcall.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
+#ifdef SERIAL_INLINE
+#define _INLINE_ inline
+#endif
+
#define SERIAL_MAX_NUM_LINES 1
#define SERIAL_TIMER_VALUE (20 * HZ)
}
-static const struct tty_operations serial_ops = {
+static struct tty_operations serial_ops = {
.open = rs_open,
.close = rs_close,
.write = rs_write,
#include <linux/timer.h>
#include <linux/platform_device.h>
-#include <xtensa/simcall.h>
+#include <asm/platform/simcall.h>
#define DRIVER_NAME "iss-netdev"
#define ETH_MAX_PACKET 1500
--- /dev/null
+/*
+ * include/asm-xtensa/asmmacro.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_ASMMACRO_H
+#define _XTENSA_ASMMACRO_H
+
+#include <asm/variant/core.h>
+
+/*
+ * Some little helpers for loops. Use zero-overhead-loops
+ * where applicable and if supported by the processor.
+ *
+ * __loopi ar, at, size, inc
+ * ar register initialized with the start address
+ * at scratch register used by macro
+ * size size immediate value
+ * inc increment
+ *
+ * __loops ar, as, at, inc_log2[, mask_log2][, cond][, ncond]
+ * ar register initialized with the start address
+ * as register initialized with the size
+ * at scratch register use by macro
+ * inc_log2 increment [in log2]
+ * mask_log2 mask [in log2]
+ * cond true condition (used in loop'cond')
+ * ncond false condition (used in b'ncond')
+ *
+ * __loop as
+ * restart loop. 'as' register must not have been modified!
+ *
+ * __endla ar, at, incr
+ * ar start address (modified)
+ * as scratch register used by macro
+ * inc increment
+ */
+
+/*
+ * loop for given size as immediate
+ */
+
+ .macro __loopi ar, at, size, incr
+
+#if XCHAL_HAVE_LOOPS
+ movi \at, ((\size + \incr - 1) / (\incr))
+ loop \at, 99f
+#else
+ addi \at, \ar, \size
+ 98:
+#endif
+
+ .endm
+
+/*
+ * loop for given size in register
+ */
+
+ .macro __loops ar, as, at, incr_log2, mask_log2, cond, ncond
+
+#if XCHAL_HAVE_LOOPS
+ .ifgt \incr_log2 - 1
+ addi \at, \as, (1 << \incr_log2) - 1
+ .ifnc \mask_log2,
+ extui \at, \at, \incr_log2, \mask_log2
+ .else
+ srli \at, \at, \incr_log2
+ .endif
+ .endif
+ loop\cond \at, 99f
+#else
+ .ifnc \mask_log2,
+ extui \at, \as, \incr_log2, \mask_log2
+ .else
+ .ifnc \ncond,
+ srli \at, \as, \incr_log2
+ .endif
+ .endif
+ .ifnc \ncond,
+ b\ncond \at, 99f
+
+ .endif
+ .ifnc \mask_log2,
+ slli \at, \at, \incr_log2
+ add \at, \ar, \at
+ .else
+ add \at, \ar, \as
+ .endif
+#endif
+ 98:
+
+ .endm
+
+/*
+ * loop from ar to ax
+ */
+
+ .macro __loopt ar, as, at, incr_log2
+
+#if XCHAL_HAVE_LOOPS
+ sub \at, \as, \ar
+ .ifgt \incr_log2 - 1
+ addi \at, \at, (1 << \incr_log2) - 1
+ srli \at, \at, \incr_log2
+ .endif
+ loop \at, 99f
+#else
+ 98:
+#endif
+
+ .endm
+
+/*
+ * restart loop. registers must be unchanged
+ */
+
+ .macro __loop as
+
+#if XCHAL_HAVE_LOOPS
+ loop \as, 99f
+#else
+ 98:
+#endif
+
+ .endm
+
+/*
+ * end of loop with no increment of the address.
+ */
+
+ .macro __endl ar, as
+#if !XCHAL_HAVE_LOOPS
+ bltu \ar, \as, 98b
+#endif
+ 99:
+ .endm
+
+/*
+ * end of loop with increment of the address.
+ */
+
+ .macro __endla ar, as, incr
+ addi \ar, \ar, \incr
+ __endl \ar \as
+ .endm
+
+
+#endif /* _XTENSA_ASMMACRO_H */
#ifndef _XTENSA_BYTEORDER_H
#define _XTENSA_BYTEORDER_H
-#include <asm/processor.h>
#include <asm/types.h>
static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
- * 2 of the License, or (at your option) any later version.
*
* (C) 2001 - 2005 Tensilica Inc.
*/
#ifndef _XTENSA_CACHE_H
#define _XTENSA_CACHE_H
-#include <xtensa/config/core.h>
+#include <asm/variant/core.h>
-#if XCHAL_ICACHE_SIZE > 0
-# if (XCHAL_ICACHE_SIZE % (XCHAL_ICACHE_LINESIZE*XCHAL_ICACHE_WAYS*4)) != 0
-# error cache configuration outside expected/supported range!
-# endif
-#endif
+#define L1_CACHE_SHIFT XCHAL_DCACHE_LINEWIDTH
+#define L1_CACHE_BYTES XCHAL_DCACHE_LINESIZE
+#define SMP_CACHE_BYTES L1_CACHE_BYTES
-#if XCHAL_DCACHE_SIZE > 0
-# if (XCHAL_DCACHE_SIZE % (XCHAL_DCACHE_LINESIZE*XCHAL_DCACHE_WAYS*4)) != 0
-# error cache configuration outside expected/supported range!
-# endif
-#endif
+#define DCACHE_WAY_SIZE (XCHAL_DCACHE_SIZE/XCHAL_DCACHE_WAYS)
+#define ICACHE_WAY_SIZE (XCHAL_ICACHE_SIZE/XCHAL_ICACHE_WAYS)
-#define L1_CACHE_SHIFT XCHAL_CACHE_LINEWIDTH_MAX
-#define L1_CACHE_BYTES XCHAL_CACHE_LINESIZE_MAX
#endif /* _XTENSA_CACHE_H */
--- /dev/null
+/*
+ * include/asm-xtensa/cacheasm.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2006 Tensilica Inc.
+ */
+
+#include <asm/cache.h>
+#include <asm/asmmacro.h>
+#include <linux/stringify.h>
+
+/*
+ * Define cache functions as macros here so that they can be used
+ * by the kernel and boot loader. We should consider moving them to a
+ * library that can be linked by both.
+ *
+ * Locking
+ *
+ * ___unlock_dcache_all
+ * ___unlock_icache_all
+ *
+ * Flush and invaldating
+ *
+ * ___flush_invalidate_dcache_{all|range|page}
+ * ___flush_dcache_{all|range|page}
+ * ___invalidate_dcache_{all|range|page}
+ * ___invalidate_icache_{all|range|page}
+ *
+ */
+
+ .macro __loop_cache_all ar at insn size line_width
+
+ movi \ar, 0
+
+ __loopi \ar, \at, \size, (4 << (\line_width))
+ \insn \ar, 0 << (\line_width)
+ \insn \ar, 1 << (\line_width)
+ \insn \ar, 2 << (\line_width)
+ \insn \ar, 3 << (\line_width)
+ __endla \ar, \at, 4 << (\line_width)
+
+ .endm
+
+
+ .macro __loop_cache_range ar as at insn line_width
+
+ extui \at, \ar, 0, \line_width
+ add \as, \as, \at
+
+ __loops \ar, \as, \at, \line_width
+ \insn \ar, 0
+ __endla \ar, \at, (1 << (\line_width))
+
+ .endm
+
+
+ .macro __loop_cache_page ar at insn line_width
+
+ __loopi \ar, \at, PAGE_SIZE, 4 << (\line_width)
+ \insn \ar, 0 << (\line_width)
+ \insn \ar, 1 << (\line_width)
+ \insn \ar, 2 << (\line_width)
+ \insn \ar, 3 << (\line_width)
+ __endla \ar, \at, 4 << (\line_width)
+
+ .endm
+
+
+#if XCHAL_DCACHE_LINE_LOCKABLE
+
+ .macro ___unlock_dcache_all ar at
+
+ __loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+#endif
+
+#if XCHAL_ICACHE_LINE_LOCKABLE
+
+ .macro ___unlock_icache_all ar at
+
+ __loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE XCHAL_ICACHE_LINEWIDTH
+
+ .endm
+#endif
+
+ .macro ___flush_invalidate_dcache_all ar at
+
+ __loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+
+ .macro ___flush_dcache_all ar at
+
+ __loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+
+ .macro ___invalidate_dcache_all ar at
+
+ __loop_cache_all \ar \at dii __stringify(DCACHE_WAY_SIZE) \
+ XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+
+ .macro ___invalidate_icache_all ar at
+
+ __loop_cache_all \ar \at iii __stringify(ICACHE_WAY_SIZE) \
+ XCHAL_ICACHE_LINEWIDTH
+
+ .endm
+
+
+
+ .macro ___flush_invalidate_dcache_range ar as at
+
+ __loop_cache_range \ar \as \at dhwbi XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+
+ .macro ___flush_dcache_range ar as at
+
+ __loop_cache_range \ar \as \at dhwb XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+
+ .macro ___invalidate_dcache_range ar as at
+
+ __loop_cache_range \ar \as \at dhi XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+
+ .macro ___invalidate_icache_range ar as at
+
+ __loop_cache_range \ar \as \at ihi XCHAL_ICACHE_LINEWIDTH
+
+ .endm
+
+
+
+ .macro ___flush_invalidate_dcache_page ar as
+
+ __loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+
+ .macro ___flush_dcache_page ar as
+
+ __loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+
+ .macro ___invalidate_dcache_page ar as
+
+ __loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH
+
+ .endm
+
+
+ .macro ___invalidate_icache_page ar as
+
+ __loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH
+
+ .endm
+
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * (C) 2001 - 2005 Tensilica Inc.
+ * (C) 2001 - 2006 Tensilica Inc.
*/
#ifndef _XTENSA_CACHEFLUSH_H
#define _XTENSA_CHECKSUM_H
#include <linux/in6.h>
-#include <xtensa/config/core.h>
+#include <asm/variant/core.h>
/*
* computes the checksum of a memory block at buff, length len,
#ifndef _XTENSA_COPROCESSOR_H
#define _XTENSA_COPROCESSOR_H
-#include <xtensa/config/core.h>
+#include <asm/variant/core.h>
+#include <asm/variant/tie.h>
+
+#if !XCHAL_HAVE_CP
+
+#define XTENSA_CP_EXTRA_OFFSET 0
+#define XTENSA_CP_EXTRA_ALIGN 1 /* must be a power of 2 */
+#define XTENSA_CP_EXTRA_SIZE 0
+
+#else
#define XTOFS(last_start,last_size,align) \
((last_start+last_size+align-1) & -align)
# endif
#endif
+#endif
+
#endif /* _XTENSA_COPROCESSOR_H */
#define _XTENSA_DMA_H
#include <asm/io.h> /* need byte IO */
-#include <xtensa/config/core.h>
/*
* This is only to be defined if we have PC-like DMA.
* enters another area, and virt_to_phys() may not return
* the value desired).
*/
-#define MAX_DMA_ADDRESS (PAGE_OFFSET + XCHAL_KSEG_CACHED_SIZE - 1)
+
+#define MAX_DMA_ADDRESS (PAGE_OFFSET + XCHAL_KIO_SIZE - 1)
+
/* Reserve and release a DMA channel */
extern int request_dma(unsigned int dmanr, const char * device_id);
#ifndef _XTENSA_ELF_H
#define _XTENSA_ELF_H
+#include <asm/variant/core.h>
#include <asm/ptrace.h>
-#include <asm/coprocessor.h>
-#include <xtensa/config/core.h>
/* Xtensa processor ELF architecture-magic number */
* using memcpy(). But we do allow space for such alignment,
* to allow optimizations of layout and copying.
*/
-
+#if 0
#define TOTAL_FPREGS_SIZE \
(4 + XTENSA_CPE_LTABLE_SIZE + XTENSA_CP_EXTRA_SIZE)
#define ELF_NFPREG \
((TOTAL_FPREGS_SIZE + sizeof(elf_fpreg_t) - 1) / sizeof(elf_fpreg_t))
+#else
+#define TOTAL_FPREGS_SIZE 0
+#define ELF_NFPREG 0
+#endif
typedef unsigned int elf_fpreg_t;
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+++ /dev/null
-/*
- * include/asm-xtensa/fixmap.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- */
-
-#ifndef _XTENSA_FIXMAP_H
-#define _XTENSA_FIXMAP_H
-
-#include <asm/processor.h>
-
-#ifdef CONFIG_MMU
-
-/*
- * Here we define all the compile-time virtual addresses.
- */
-
-#if XCHAL_SEG_MAPPABLE_VADDR != 0
-# error "Current port requires virtual user space starting at 0"
-#endif
-#if XCHAL_SEG_MAPPABLE_SIZE < 0x80000000
-# error "Current port requires at least 0x8000000 bytes for user space"
-#endif
-
-/* Verify instruction/data ram/rom and xlmi don't overlay vmalloc space. */
-
-#define __IN_VMALLOC(addr) \
- (((addr) >= VMALLOC_START) && ((addr) < VMALLOC_END))
-#define __SPAN_VMALLOC(start,end) \
- (((start) < VMALLOC_START) && ((end) >= VMALLOC_END))
-#define INSIDE_VMALLOC(start,end) \
- (__IN_VMALLOC((start)) || __IN_VMALLOC(end) || __SPAN_VMALLOC((start),(end)))
-
-#if XCHAL_NUM_INSTROM
-# if XCHAL_NUM_INSTROM == 1
-# if INSIDE_VMALLOC(XCHAL_INSTROM0_VADDR,XCHAL_INSTROM0_VADDR+XCHAL_INSTROM0_SIZE)
-# error vmalloc range conflicts with instrom0
-# endif
-# endif
-# if XCHAL_NUM_INSTROM == 2
-# if INSIDE_VMALLOC(XCHAL_INSTROM1_VADDR,XCHAL_INSTROM1_VADDR+XCHAL_INSTROM1_SIZE)
-# error vmalloc range conflicts with instrom1
-# endif
-# endif
-#endif
-
-#if XCHAL_NUM_INSTRAM
-# if XCHAL_NUM_INSTRAM == 1
-# if INSIDE_VMALLOC(XCHAL_INSTRAM0_VADDR,XCHAL_INSTRAM0_VADDR+XCHAL_INSTRAM0_SIZE)
-# error vmalloc range conflicts with instram0
-# endif
-# endif
-# if XCHAL_NUM_INSTRAM == 2
-# if INSIDE_VMALLOC(XCHAL_INSTRAM1_VADDR,XCHAL_INSTRAM1_VADDR+XCHAL_INSTRAM1_SIZE)
-# error vmalloc range conflicts with instram1
-# endif
-# endif
-#endif
-
-#if XCHAL_NUM_DATAROM
-# if XCHAL_NUM_DATAROM == 1
-# if INSIDE_VMALLOC(XCHAL_DATAROM0_VADDR,XCHAL_DATAROM0_VADDR+XCHAL_DATAROM0_SIZE)
-# error vmalloc range conflicts with datarom0
-# endif
-# endif
-# if XCHAL_NUM_DATAROM == 2
-# if INSIDE_VMALLOC(XCHAL_DATAROM1_VADDR,XCHAL_DATAROM1_VADDR+XCHAL_DATAROM1_SIZE)
-# error vmalloc range conflicts with datarom1
-# endif
-# endif
-#endif
-
-#if XCHAL_NUM_DATARAM
-# if XCHAL_NUM_DATARAM == 1
-# if INSIDE_VMALLOC(XCHAL_DATARAM0_VADDR,XCHAL_DATARAM0_VADDR+XCHAL_DATARAM0_SIZE)
-# error vmalloc range conflicts with dataram0
-# endif
-# endif
-# if XCHAL_NUM_DATARAM == 2
-# if INSIDE_VMALLOC(XCHAL_DATARAM1_VADDR,XCHAL_DATARAM1_VADDR+XCHAL_DATARAM1_SIZE)
-# error vmalloc range conflicts with dataram1
-# endif
-# endif
-#endif
-
-#if XCHAL_NUM_XLMI
-# if XCHAL_NUM_XLMI == 1
-# if INSIDE_VMALLOC(XCHAL_XLMI0_VADDR,XCHAL_XLMI0_VADDR+XCHAL_XLMI0_SIZE)
-# error vmalloc range conflicts with xlmi0
-# endif
-# endif
-# if XCHAL_NUM_XLMI == 2
-# if INSIDE_VMALLOC(XCHAL_XLMI1_VADDR,XCHAL_XLMI1_VADDR+XCHAL_XLMI1_SIZE)
-# error vmalloc range conflicts with xlmi1
-# endif
-# endif
-#endif
-
-#if (XCHAL_NUM_INSTROM > 2) || \
- (XCHAL_NUM_INSTRAM > 2) || \
- (XCHAL_NUM_DATARAM > 2) || \
- (XCHAL_NUM_DATAROM > 2) || \
- (XCHAL_NUM_XLMI > 2)
-# error Insufficient checks on vmalloc above for more than 2 devices
-#endif
-
-/*
- * USER_VM_SIZE does not necessarily equal TASK_SIZE. We bumped
- * TASK_SIZE down to 0x4000000 to simplify the handling of windowed
- * call instructions (currently limited to a range of 1 GByte). User
- * tasks may very well reclaim the VM space from 0x40000000 to
- * 0x7fffffff in the future, so we do not want the kernel becoming
- * accustomed to having any of its stuff (e.g., page tables) in this
- * region. This VM region is no-man's land for now.
- */
-
-#define USER_VM_START XCHAL_SEG_MAPPABLE_VADDR
-#define USER_VM_SIZE 0x80000000
-
-/* Size of page table: */
-
-#define PGTABLE_SIZE_BITS (32 - XCHAL_MMU_MIN_PTE_PAGE_SIZE + 2)
-#define PGTABLE_SIZE (1L << PGTABLE_SIZE_BITS)
-
-/* All kernel-mappable space: */
-
-#define KERNEL_ALLMAP_START (USER_VM_START + USER_VM_SIZE)
-#define KERNEL_ALLMAP_SIZE (XCHAL_SEG_MAPPABLE_SIZE - KERNEL_ALLMAP_START)
-
-/* Carve out page table at start of kernel-mappable area: */
-
-#if KERNEL_ALLMAP_SIZE < PGTABLE_SIZE
-#error "Gimme some space for page table!"
-#endif
-#define PGTABLE_START KERNEL_ALLMAP_START
-
-/* Remaining kernel-mappable space: */
-
-#define KERNEL_MAPPED_START (KERNEL_ALLMAP_START + PGTABLE_SIZE)
-#define KERNEL_MAPPED_SIZE (KERNEL_ALLMAP_SIZE - PGTABLE_SIZE)
-
-#if KERNEL_MAPPED_SIZE < 0x01000000 /* 16 MB is arbitrary for now */
-# error "Shouldn't the kernel have at least *some* mappable space?"
-#endif
-
-#define MAX_LOW_MEMORY XCHAL_KSEG_CACHED_SIZE
-
-#endif
-
-/*
- * Some constants used elsewhere, but perhaps only in Xtensa header
- * files, so maybe we can get rid of some and access compile-time HAL
- * directly...
- *
- * Note: We assume that system RAM is located at the very start of the
- * kernel segments !!
- */
-#define KERNEL_VM_LOW XCHAL_KSEG_CACHED_VADDR
-#define KERNEL_VM_HIGH XCHAL_KSEG_BYPASS_VADDR
-#define KERNEL_SPACE XCHAL_KSEG_CACHED_VADDR
-
-/*
- * Returns the physical/virtual addresses of the kernel space
- * (works with the cached kernel segment only, which is the
- * one normally used for kernel operation).
- */
-
-/* PHYSICAL BYPASS CACHED
- *
- * bypass vaddr bypass paddr * cached vaddr
- * cached vaddr cached paddr bypass vaddr *
- * bypass paddr * bypass vaddr cached vaddr
- * cached paddr * bypass vaddr cached vaddr
- * other * * *
- */
-
-#define PHYSADDR(a) \
-(((unsigned)(a) >= XCHAL_KSEG_BYPASS_VADDR \
- && (unsigned)(a) < XCHAL_KSEG_BYPASS_VADDR + XCHAL_KSEG_BYPASS_SIZE) ? \
- (unsigned)(a) - XCHAL_KSEG_BYPASS_VADDR + XCHAL_KSEG_BYPASS_PADDR : \
- ((unsigned)(a) >= XCHAL_KSEG_CACHED_VADDR \
- && (unsigned)(a) < XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_CACHED_SIZE) ? \
- (unsigned)(a) - XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_CACHED_PADDR : \
- (unsigned)(a))
-
-#define BYPASS_ADDR(a) \
-(((unsigned)(a) >= XCHAL_KSEG_BYPASS_PADDR \
- && (unsigned)(a) < XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_BYPASS_SIZE) ? \
- (unsigned)(a) - XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_BYPASS_VADDR : \
- ((unsigned)(a) >= XCHAL_KSEG_CACHED_PADDR \
- && (unsigned)(a) < XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_CACHED_SIZE) ? \
- (unsigned)(a) - XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_BYPASS_VADDR : \
- ((unsigned)(a) >= XCHAL_KSEG_CACHED_VADDR \
- && (unsigned)(a) < XCHAL_KSEG_CACHED_VADDR+XCHAL_KSEG_CACHED_SIZE)? \
- (unsigned)(a) - XCHAL_KSEG_CACHED_VADDR+XCHAL_KSEG_BYPASS_VADDR: \
- (unsigned)(a))
-
-#define CACHED_ADDR(a) \
-(((unsigned)(a) >= XCHAL_KSEG_BYPASS_PADDR \
- && (unsigned)(a) < XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_BYPASS_SIZE) ? \
- (unsigned)(a) - XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_CACHED_VADDR : \
- ((unsigned)(a) >= XCHAL_KSEG_CACHED_PADDR \
- && (unsigned)(a) < XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_CACHED_SIZE) ? \
- (unsigned)(a) - XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_CACHED_VADDR : \
- ((unsigned)(a) >= XCHAL_KSEG_BYPASS_VADDR \
- && (unsigned)(a) < XCHAL_KSEG_BYPASS_VADDR+XCHAL_KSEG_BYPASS_SIZE) ? \
- (unsigned)(a) - XCHAL_KSEG_BYPASS_VADDR+XCHAL_KSEG_CACHED_VADDR : \
- (unsigned)(a))
-
-#define PHYSADDR_IO(a) \
-(((unsigned)(a) >= XCHAL_KIO_BYPASS_VADDR \
- && (unsigned)(a) < XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_BYPASS_SIZE) ? \
- (unsigned)(a) - XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_BYPASS_PADDR : \
- ((unsigned)(a) >= XCHAL_KIO_CACHED_VADDR \
- && (unsigned)(a) < XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_CACHED_SIZE) ? \
- (unsigned)(a) - XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_CACHED_PADDR : \
- (unsigned)(a))
-
-#define BYPASS_ADDR_IO(a) \
-(((unsigned)(a) >= XCHAL_KIO_BYPASS_PADDR \
- && (unsigned)(a) < XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_BYPASS_SIZE) ? \
- (unsigned)(a) - XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_BYPASS_VADDR : \
- ((unsigned)(a) >= XCHAL_KIO_CACHED_PADDR \
- && (unsigned)(a) < XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_CACHED_SIZE) ? \
- (unsigned)(a) - XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_BYPASS_VADDR : \
- ((unsigned)(a) >= XCHAL_KIO_CACHED_VADDR \
- && (unsigned)(a) < XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_CACHED_SIZE) ? \
- (unsigned)(a) - XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_BYPASS_VADDR : \
- (unsigned)(a))
-
-#define CACHED_ADDR_IO(a) \
-(((unsigned)(a) >= XCHAL_KIO_BYPASS_PADDR \
- && (unsigned)(a) < XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_BYPASS_SIZE) ? \
- (unsigned)(a) - XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_CACHED_VADDR : \
- ((unsigned)(a) >= XCHAL_KIO_CACHED_PADDR \
- && (unsigned)(a) < XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_CACHED_SIZE) ? \
- (unsigned)(a) - XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_CACHED_VADDR : \
- ((unsigned)(a) >= XCHAL_KIO_BYPASS_VADDR \
- && (unsigned)(a) < XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_BYPASS_SIZE) ? \
- (unsigned)(a) - XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_CACHED_VADDR : \
- (unsigned)(a))
-
-#endif /* _XTENSA_ADDRSPACE_H */
-
-
-
-
-
/*
- * linux/include/asm-xtensa/io.h
+ * include/asm-xtensa/io.h
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
#include <asm/byteorder.h>
#include <linux/types.h>
-#include <asm/fixmap.h>
-
-#define _IO_BASE 0
+#define XCHAL_KIO_CACHED_VADDR 0xf0000000
+#define XCHAL_KIO_BYPASS_VADDR 0xf8000000
+#define XCHAL_KIO_PADDR 0xf0000000
+#define XCHAL_KIO_SIZE 0x08000000
/*
* swap functions to change byte order from little-endian to big-endian and
static inline unsigned long virt_to_phys(volatile void * address)
{
- return PHYSADDR((unsigned long)address);
+ return __pa(address);
}
static inline void * phys_to_virt(unsigned long address)
{
- return (void*) CACHED_ADDR(address);
+ return __va(address);
}
/*
- * IO bus memory addresses are also 1:1 with the physical address
+ * virt_to_bus and bus_to_virt are deprecated.
*/
-static inline unsigned long virt_to_bus(volatile void * address)
-{
- return PHYSADDR((unsigned long)address);
-}
-
-static inline void * bus_to_virt (unsigned long address)
-{
- return (void *) CACHED_ADDR(address);
-}
+#define virt_to_bus(x) virt_to_phys(x)
+#define bus_to_virt(x) phys_to_virt(x)
/*
- * Change "struct page" to physical address.
+ * Return the virtual (cached) address for the specified bus memory.
+ * Note that we currently don't support any address outside the KIO segment.
*/
static inline void *ioremap(unsigned long offset, unsigned long size)
{
- return (void *) CACHED_ADDR_IO(offset);
+ if (offset >= XCHAL_KIO_PADDR
+ && offset < XCHAL_KIO_PADDR + XCHAL_KIO_SIZE)
+ return (void*)(offset-XCHAL_KIO_PADDR+XCHAL_KIO_BYPASS_VADDR);
+
+ else
+ BUG();
}
static inline void *ioremap_nocache(unsigned long offset, unsigned long size)
{
- return (void *) BYPASS_ADDR_IO(offset);
+ if (offset >= XCHAL_KIO_PADDR
+ && offset < XCHAL_KIO_PADDR + XCHAL_KIO_SIZE)
+ return (void*)(offset-XCHAL_KIO_PADDR+XCHAL_KIO_CACHED_VADDR);
+ else
+ BUG();
}
static inline void iounmap(void *addr)
*(__force volatile __u32 *)(addr) = b;
}
-
-
-
/* These are the definitions for the x86 IO instructions
* inb/inw/inl/outb/outw/outl, the "string" versions
* insb/insw/insl/outsb/outsw/outsl, and the "pausing" versions
* The macros don't do byte-swapping.
*/
-#define inb(port) readb((u8 *)((port)+_IO_BASE))
-#define outb(val, port) writeb((val),(u8 *)((unsigned long)(port)+_IO_BASE))
-#define inw(port) readw((u16 *)((port)+_IO_BASE))
-#define outw(val, port) writew((val),(u16 *)((unsigned long)(port)+_IO_BASE))
-#define inl(port) readl((u32 *)((port)+_IO_BASE))
+#define inb(port) readb((u8 *)((port)))
+#define outb(val, port) writeb((val),(u8 *)((unsigned long)(port)))
+#define inw(port) readw((u16 *)((port)))
+#define outw(val, port) writew((val),(u16 *)((unsigned long)(port)))
+#define inl(port) readl((u32 *)((port)))
#define outl(val, port) writel((val),(u32 *)((unsigned long)(port)))
#define inb_p(port) inb((port))
/*
- * * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * * access
- * */
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem access
+ */
#define xlate_dev_mem_ptr(p) __va(p)
/*
- * * Convert a virtual cached pointer to an uncached pointer
- * */
+ * Convert a virtual cached pointer to an uncached pointer
+ */
#define xlate_dev_kmem_ptr(p) p
#define _XTENSA_IRQ_H
#include <asm/platform/hardware.h>
-
-#include <xtensa/config/core.h>
+#include <asm/variant/core.h>
#ifndef PLATFORM_NR_IRQS
# define PLATFORM_NR_IRQS 0
}
struct irqaction;
-#if 0 // FIXME
-extern void disable_irq_nosync(unsigned int);
-extern void disable_irq(unsigned int);
-extern void enable_irq(unsigned int);
-#endif
#endif /* _XTENSA_IRQ_H */
#include <linux/stringify.h>
#include <asm/pgtable.h>
-#include <asm/mmu_context.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
-/*
- * Linux was ported to Xtensa assuming all auto-refill ways in set 0
- * had the same properties (a very likely assumption). Multiple sets
- * of auto-refill ways will still work properly, but not as optimally
- * as the Xtensa designer may have assumed.
- *
- * We make this case a hard #error, killing the kernel build, to alert
- * the developer to this condition (which is more likely an error).
- * You super-duper clever developers can change it to a warning or
- * remove it altogether if you think you know what you're doing. :)
- */
+#define XCHAL_MMU_ASID_BITS 8
#if (XCHAL_HAVE_TLBS != 1)
# error "Linux must have an MMU!"
#endif
-#if ((XCHAL_ITLB_ARF_WAYS == 0) || (XCHAL_DTLB_ARF_WAYS == 0))
-# error "MMU must have auto-refill ways"
-#endif
-
-#if ((XCHAL_ITLB_ARF_SETS != 1) || (XCHAL_DTLB_ARF_SETS != 1))
-# error Linux may not use all auto-refill ways as efficiently as you think
-#endif
-
-#if (XCHAL_MMU_MAX_PTE_PAGE_SIZE != XCHAL_MMU_MIN_PTE_PAGE_SIZE)
-# error Only one page size allowed!
-#endif
-
extern unsigned long asid_cache;
-extern pgd_t *current_pgd;
-
-/*
- * Define the number of entries per auto-refill way in set 0 of both I and D
- * TLBs. We deal only with set 0 here (an assumption further explained in
- * assertions.h). Also, define the total number of ARF entries in both TLBs.
- */
-
-#define ITLB_ENTRIES_PER_ARF_WAY (XCHAL_ITLB_SET(XCHAL_ITLB_ARF_SET0,ENTRIES))
-#define DTLB_ENTRIES_PER_ARF_WAY (XCHAL_DTLB_SET(XCHAL_DTLB_ARF_SET0,ENTRIES))
-
-#define ITLB_ENTRIES \
- (ITLB_ENTRIES_PER_ARF_WAY * (XCHAL_ITLB_SET(XCHAL_ITLB_ARF_SET0,WAYS)))
-#define DTLB_ENTRIES \
- (DTLB_ENTRIES_PER_ARF_WAY * (XCHAL_DTLB_SET(XCHAL_DTLB_ARF_SET0,WAYS)))
-
-
-/*
- * SMALLEST_NTLB_ENTRIES is the smaller of ITLB_ENTRIES and DTLB_ENTRIES.
- * In practice, they are probably equal. This macro simplifies function
- * flush_tlb_range().
- */
-
-#if (DTLB_ENTRIES < ITLB_ENTRIES)
-# define SMALLEST_NTLB_ENTRIES DTLB_ENTRIES
-#else
-# define SMALLEST_NTLB_ENTRIES ITLB_ENTRIES
-#endif
-
-
-/*
- * asid_cache tracks only the ASID[USER_RING] field of the RASID special
- * register, which is the current user-task asid allocation value.
- * mm->context has the same meaning. When it comes time to write the
- * asid_cache or mm->context values to the RASID special register, we first
- * shift the value left by 8, then insert the value.
- * ASID[0] always contains the kernel's asid value, and we reserve three
- * other asid values that we never assign to user tasks.
- */
-
-#define ASID_INC 0x1
-#define ASID_MASK ((1 << XCHAL_MMU_ASID_BITS) - 1)
-
-/*
- * XCHAL_MMU_ASID_INVALID is a configurable Xtensa processor constant
- * indicating invalid address space. XCHAL_MMU_ASID_KERNEL is a configurable
- * Xtensa processor constant indicating the kernel address space. They can
- * be arbitrary values.
- *
- * We identify three more unique, reserved ASID values to use in the unused
- * ring positions. No other user process will be assigned these reserved
- * ASID values.
- *
- * For example, given that
- *
- * XCHAL_MMU_ASID_INVALID == 0
- * XCHAL_MMU_ASID_KERNEL == 1
- *
- * the following maze of #if statements would generate
- *
- * ASID_RESERVED_1 == 2
- * ASID_RESERVED_2 == 3
- * ASID_RESERVED_3 == 4
- * ASID_FIRST_NONRESERVED == 5
- */
-
-#if (XCHAL_MMU_ASID_INVALID != XCHAL_MMU_ASID_KERNEL + 1)
-# define ASID_RESERVED_1 ((XCHAL_MMU_ASID_KERNEL + 1) & ASID_MASK)
-#else
-# define ASID_RESERVED_1 ((XCHAL_MMU_ASID_KERNEL + 2) & ASID_MASK)
-#endif
-
-#if (XCHAL_MMU_ASID_INVALID != ASID_RESERVED_1 + 1)
-# define ASID_RESERVED_2 ((ASID_RESERVED_1 + 1) & ASID_MASK)
-#else
-# define ASID_RESERVED_2 ((ASID_RESERVED_1 + 2) & ASID_MASK)
-#endif
-
-#if (XCHAL_MMU_ASID_INVALID != ASID_RESERVED_2 + 1)
-# define ASID_RESERVED_3 ((ASID_RESERVED_2 + 1) & ASID_MASK)
-#else
-# define ASID_RESERVED_3 ((ASID_RESERVED_2 + 2) & ASID_MASK)
-#endif
-
-#if (XCHAL_MMU_ASID_INVALID != ASID_RESERVED_3 + 1)
-# define ASID_FIRST_NONRESERVED ((ASID_RESERVED_3 + 1) & ASID_MASK)
-#else
-# define ASID_FIRST_NONRESERVED ((ASID_RESERVED_3 + 2) & ASID_MASK)
-#endif
-
-#define ASID_ALL_RESERVED ( ((ASID_RESERVED_1) << 24) + \
- ((ASID_RESERVED_2) << 16) + \
- ((ASID_RESERVED_3) << 8) + \
- ((XCHAL_MMU_ASID_KERNEL)) )
-
/*
* NO_CONTEXT is the invalid ASID value that we don't ever assign to
- * any user or kernel context. NO_CONTEXT is a better mnemonic than
- * XCHAL_MMU_ASID_INVALID, so we use it in code instead.
- */
-
-#define NO_CONTEXT XCHAL_MMU_ASID_INVALID
-
-#if (KERNEL_RING != 0)
-# error The KERNEL_RING really should be zero.
-#endif
-
-#if (USER_RING >= XCHAL_MMU_RINGS)
-# error USER_RING cannot be greater than the highest numbered ring.
-#endif
-
-#if (USER_RING == KERNEL_RING)
-# error The user and kernel rings really should not be equal.
-#endif
-
-#if (USER_RING == 1)
-#define ASID_INSERT(x) ( ((ASID_RESERVED_1) << 24) + \
- ((ASID_RESERVED_2) << 16) + \
- (((x) & (ASID_MASK)) << 8) + \
- ((XCHAL_MMU_ASID_KERNEL)) )
-
-#elif (USER_RING == 2)
-#define ASID_INSERT(x) ( ((ASID_RESERVED_1) << 24) + \
- (((x) & (ASID_MASK)) << 16) + \
- ((ASID_RESERVED_2) << 8) + \
- ((XCHAL_MMU_ASID_KERNEL)) )
-
-#elif (USER_RING == 3)
-#define ASID_INSERT(x) ( (((x) & (ASID_MASK)) << 24) + \
- ((ASID_RESERVED_1) << 16) + \
- ((ASID_RESERVED_2) << 8) + \
- ((XCHAL_MMU_ASID_KERNEL)) )
-
-#else
-#error Goofy value for USER_RING
-
-#endif /* USER_RING == 1 */
-
-
-/*
- * All unused by hardware upper bits will be considered
- * as a software asid extension.
+ * any user or kernel context.
+ *
+ * 0 invalid
+ * 1 kernel
+ * 2 reserved
+ * 3 reserved
+ * 4...255 available
*/
-#define ASID_VERSION_MASK ((unsigned long)~(ASID_MASK|(ASID_MASK-1)))
-#define ASID_FIRST_VERSION \
- ((unsigned long)(~ASID_VERSION_MASK) + 1 + ASID_FIRST_NONRESERVED)
+#define NO_CONTEXT 0
+#define ASID_USER_FIRST 4
+#define ASID_MASK ((1 << XCHAL_MMU_ASID_BITS) - 1)
+#define ASID_INSERT(x) (0x03020001 | (((x) & ASID_MASK) << 8))
static inline void set_rasid_register (unsigned long val)
{
static inline unsigned long get_rasid_register (void)
{
unsigned long tmp;
- __asm__ __volatile__ (" rsr %0, "__stringify(RASID)"\n\t" : "=a" (tmp));
+ __asm__ __volatile__ (" rsr %0,"__stringify(RASID)"\n\t" : "=a" (tmp));
return tmp;
}
-
-#if ((XCHAL_MMU_ASID_INVALID == 0) && (XCHAL_MMU_ASID_KERNEL == 1))
-
static inline void
-get_new_mmu_context(struct mm_struct *mm, unsigned long asid)
+__get_new_mmu_context(struct mm_struct *mm)
{
extern void flush_tlb_all(void);
- if (! ((asid += ASID_INC) & ASID_MASK) ) {
+ if (! (++asid_cache & ASID_MASK) ) {
flush_tlb_all(); /* start new asid cycle */
- if (!asid) /* fix version if needed */
- asid = ASID_FIRST_VERSION - ASID_FIRST_NONRESERVED;
- asid += ASID_FIRST_NONRESERVED;
+ asid_cache += ASID_USER_FIRST;
}
- mm->context = asid_cache = asid;
-}
-
-#else
-#warning ASID_{INVALID,KERNEL} values impose non-optimal get_new_mmu_context implementation
-
-/* XCHAL_MMU_ASID_INVALID == 0 and XCHAL_MMU_ASID_KERNEL ==1 are
- really the best, but if you insist... */
-
-static inline int validate_asid (unsigned long asid)
-{
- switch (asid) {
- case XCHAL_MMU_ASID_INVALID:
- case XCHAL_MMU_ASID_KERNEL:
- case ASID_RESERVED_1:
- case ASID_RESERVED_2:
- case ASID_RESERVED_3:
- return 0; /* can't use these values as ASIDs */
- }
- return 1; /* valid */
+ mm->context = asid_cache;
}
static inline void
-get_new_mmu_context(struct mm_struct *mm, unsigned long asid)
+__load_mmu_context(struct mm_struct *mm)
{
- extern void flush_tlb_all(void);
- while (1) {
- asid += ASID_INC;
- if ( ! (asid & ASID_MASK) ) {
- flush_tlb_all(); /* start new asid cycle */
- if (!asid) /* fix version if needed */
- asid = ASID_FIRST_VERSION - ASID_FIRST_NONRESERVED;
- asid += ASID_FIRST_NONRESERVED;
- break; /* no need to validate here */
- }
- if (validate_asid (asid & ASID_MASK))
- break;
- }
- mm->context = asid_cache = asid;
+ set_rasid_register(ASID_INSERT(mm->context));
+ invalidate_page_directory();
}
-#endif
-
-
/*
* Initialize the context related info for a new mm_struct
* instance.
return 0;
}
+/*
+ * After we have set current->mm to a new value, this activates
+ * the context for the new mm so we see the new mappings.
+ */
+static inline void
+activate_mm(struct mm_struct *prev, struct mm_struct *next)
+{
+ /* Unconditionally get a new ASID. */
+
+ __get_new_mmu_context(next);
+ __load_mmu_context(next);
+}
+
+
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
{
/* Check if our ASID is of an older version and thus invalid */
- if ((next->context ^ asid) & ASID_VERSION_MASK)
- get_new_mmu_context(next, asid);
+ if (next->context == NO_CONTEXT || ((next->context^asid) & ~ASID_MASK))
+ __get_new_mmu_context(next);
- set_rasid_register (ASID_INSERT(next->context));
- invalidate_page_directory();
+ __load_mmu_context(next);
}
#define deactivate_mm(tsk, mm) do { } while(0)
*/
static inline void destroy_context(struct mm_struct *mm)
{
- /* Nothing to do. */
-}
-
-/*
- * After we have set current->mm to a new value, this activates
- * the context for the new mm so we see the new mappings.
- */
-static inline void
-activate_mm(struct mm_struct *prev, struct mm_struct *next)
-{
- /* Unconditionally get a new ASID. */
-
- get_new_mmu_context(next, asid_cache);
- set_rasid_register (ASID_INSERT(next->context));
invalidate_page_directory();
}
#include <asm/processor.h>
+#define XCHAL_KSEG_CACHED_VADDR 0xd0000000
+#define XCHAL_KSEG_BYPASS_VADDR 0xd8000000
+#define XCHAL_KSEG_PADDR 0x00000000
+#define XCHAL_KSEG_SIZE 0x08000000
+
/*
* PAGE_SHIFT determines the page size
* PAGE_ALIGN(x) aligns the pointer to the (next) page boundary
*/
-#define PAGE_SHIFT XCHAL_MMU_MIN_PTE_PAGE_SIZE
+#define PAGE_SHIFT 12
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE - 1) & PAGE_MASK)
-#define DCACHE_WAY_SIZE (XCHAL_DCACHE_SIZE / XCHAL_DCACHE_WAYS)
#define PAGE_OFFSET XCHAL_KSEG_CACHED_VADDR
+#define MAX_MEM_PFN XCHAL_KSEG_SIZE
+#define PGTABLE_START 0x80000000
#ifdef __ASSEMBLY__
#ifndef _XTENSA_PARAM_H
#define _XTENSA_PARAM_H
-#include <xtensa/config/core.h>
+#include <asm/variant/core.h>
#ifdef __KERNEL__
# define HZ 100 /* internal timer frequency */
#include <asm-generic/pgtable-nopmd.h>
#include <asm/page.h>
-/* Assertions. */
-
-#ifdef CONFIG_MMU
-
-
-#if (XCHAL_MMU_RINGS < 2)
-# error Linux build assumes at least 2 ring levels.
-#endif
-
-#if (XCHAL_MMU_CA_BITS != 4)
-# error We assume exactly four bits for CA.
-#endif
-
-#if (XCHAL_MMU_SR_BITS != 0)
-# error We have no room for SR bits.
-#endif
-
-/*
- * Use the first min-wired way for mapping page-table pages.
- * Page coloring requires a second min-wired way.
- */
-
-#if (XCHAL_DTLB_MINWIRED_SETS == 0)
-# error Need a min-wired way for mapping page-table pages
-#endif
-
-#define DTLB_WAY_PGTABLE XCHAL_DTLB_SET(XCHAL_DTLB_MINWIRED_SET0, WAY)
-
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
-# if XCHAL_DTLB_SET(XCHAL_DTLB_MINWIRED_SET0, WAYS) >= 2
-# define DTLB_WAY_DCACHE_ALIAS0 (DTLB_WAY_PGTABLE + 1)
-# define DTLB_WAY_DCACHE_ALIAS1 (DTLB_WAY_PGTABLE + 2)
-# else
-# error Page coloring requires its own wired dtlb way!
-# endif
-#endif
-
-#endif /* CONFIG_MMU */
-
/*
* We only use two ring levels, user and kernel space.
*/
#define PGD_ORDER 0
#define PMD_ORDER 0
#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE)
-#define FIRST_USER_ADDRESS XCHAL_SEG_MAPPABLE_VADDR
+#define FIRST_USER_ADDRESS 0
#define FIRST_USER_PGD_NR (FIRST_USER_ADDRESS >> PGDIR_SHIFT)
/* virtual memory area. We keep a distance to other memory regions to be
* This file contains the default configuration of ISS.
*/
-#ifndef __ASM_XTENSA_ISS_HARDWARE
-#define __ASM_XTENSA_ISS_HARDWARE
+#ifndef _XTENSA_PLATFORM_ISS_HARDWARE_H
+#define _XTENSA_PLATFORM_ISS_HARDWARE_H
/*
* Memory configuration.
*/
-#define PLATFORM_DEFAULT_MEM_START XSHAL_RAM_PADDR
-#define PLATFORM_DEFAULT_MEM_SIZE XSHAL_RAM_VSIZE
+#define PLATFORM_DEFAULT_MEM_START 0x00000000
+#define PLATFORM_DEFAULT_MEM_SIZE 0x08000000
/*
* Interrupt configuration.
*/
-#endif /* __ASM_XTENSA_ISS_HARDWARE */
+#endif /* _XTENSA_PLATFORM_ISS_HARDWARE_H */
--- /dev/null
+/*
+ * include/asm-xtensa/platform-iss/hardware.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PLATFORM_ISS_SIMCALL_H
+#define _XTENSA_PLATFORM_ISS_SIMCALL_H
+
+
+/*
+ * System call like services offered by the simulator host.
+ */
+
+#define SYS_nop 0 /* unused */
+#define SYS_exit 1 /*x*/
+#define SYS_fork 2
+#define SYS_read 3 /*x*/
+#define SYS_write 4 /*x*/
+#define SYS_open 5 /*x*/
+#define SYS_close 6 /*x*/
+#define SYS_rename 7 /*x 38 - waitpid */
+#define SYS_creat 8 /*x*/
+#define SYS_link 9 /*x (not implemented on WIN32) */
+#define SYS_unlink 10 /*x*/
+#define SYS_execv 11 /* n/a - execve */
+#define SYS_execve 12 /* 11 - chdir */
+#define SYS_pipe 13 /* 42 - time */
+#define SYS_stat 14 /* 106 - mknod */
+#define SYS_chmod 15
+#define SYS_chown 16 /* 202 - lchown */
+#define SYS_utime 17 /* 30 - break */
+#define SYS_wait 18 /* n/a - oldstat */
+#define SYS_lseek 19 /*x*/
+#define SYS_getpid 20
+#define SYS_isatty 21 /* n/a - mount */
+#define SYS_fstat 22 /* 108 - oldumount */
+#define SYS_time 23 /* 13 - setuid */
+#define SYS_gettimeofday 24 /*x 78 - getuid (not implemented on WIN32) */
+#define SYS_times 25 /*X 43 - stime (Xtensa-specific implementation) */
+#define SYS_socket 26
+#define SYS_sendto 27
+#define SYS_recvfrom 28
+#define SYS_select_one 29 /* not compitible select, one file descriptor at the time */
+#define SYS_bind 30
+#define SYS_ioctl 31
+
+/*
+ * SYS_select_one specifiers
+ */
+
+#define XTISS_SELECT_ONE_READ 1
+#define XTISS_SELECT_ONE_WRITE 2
+#define XTISS_SELECT_ONE_EXCEPT 3
+
+
+#endif /* _XTENSA_PLATFORM_ISS_SIMCALL_H */
+
#ifndef _XTENSA_PROCESSOR_H
#define _XTENSA_PROCESSOR_H
-#ifdef __ASSEMBLY__
-#define _ASMLANGUAGE
-#endif
-
-#include <xtensa/config/core.h>
-#include <xtensa/config/specreg.h>
-#include <xtensa/config/tie.h>
-#include <xtensa/config/system.h>
+#include <asm/variant/core.h>
+#include <asm/coprocessor.h>
#include <linux/compiler.h>
#include <asm/ptrace.h>
#include <asm/types.h>
-#include <asm/coprocessor.h>
+#include <asm/regs.h>
/* Assertions. */
#if (XCHAL_HAVE_WINDOWED != 1)
-#error Linux requires the Xtensa Windowed Registers Option.
+# error Linux requires the Xtensa Windowed Registers Option.
#endif
/*
* Note: We set-up ps as if we did a call4 to the new pc.
* set_thread_state in signal.c depends on it.
*/
-#define USER_PS_VALUE ( (1 << XCHAL_PS_WOE_SHIFT) + \
- (1 << XCHAL_PS_CALLINC_SHIFT) + \
- (USER_RING << XCHAL_PS_RING_SHIFT) + \
- (1 << XCHAL_PS_PROGSTACK_SHIFT) + \
- (1 << XCHAL_PS_EXCM_SHIFT) )
+#define USER_PS_VALUE ((1 << PS_WOE_BIT) | \
+ (1 << PS_CALLINC_SHIFT) | \
+ (USER_RING << PS_RING_SHIFT) | \
+ (1 << PS_UM_BIT) | \
+ (1 << PS_EXCM_BIT))
/* Clearing a0 terminates the backtrace. */
#define start_thread(regs, new_pc, new_sp) \
#ifndef _XTENSA_PTRACE_H
#define _XTENSA_PTRACE_H
-#include <xtensa/config/core.h>
+#include <asm/variant/core.h>
/*
* Kernel stack
--- /dev/null
+/*
+ * Copyright (c) 2006 Tensilica, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2.1 of the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like. Any license provided herein, whether implied or
+ * otherwise, applies only to this software file. Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
+ * USA.
+ */
+
+#ifndef _XTENSA_REGS_H
+#define _XTENSA_REGS_H
+
+/* Special registers. */
+
+#define LBEG 0
+#define LEND 1
+#define LCOUNT 2
+#define SAR 3
+#define BR 4
+#define SCOMPARE1 12
+#define ACCHI 16
+#define ACCLO 17
+#define MR 32
+#define WINDOWBASE 72
+#define WINDOWSTART 73
+#define PTEVADDR 83
+#define RASID 90
+#define ITLBCFG 91
+#define DTLBCFG 92
+#define IBREAKENABLE 96
+#define DDR 104
+#define IBREAKA 128
+#define DBREAKA 144
+#define DBREAKC 160
+#define EPC 176
+#define EPC_1 177
+#define DEPC 192
+#define EPS 192
+#define EPS_1 193
+#define EXCSAVE 208
+#define EXCSAVE_1 209
+#define INTERRUPT 226
+#define INTENABLE 228
+#define PS 230
+#define THREADPTR 231
+#define EXCCAUSE 232
+#define DEBUGCAUSE 233
+#define CCOUNT 234
+#define PRID 235
+#define ICOUNT 236
+#define ICOUNTLEVEL 237
+#define EXCVADDR 238
+#define CCOMPARE 240
+#define MISC 244
+
+/* Special names for read-only and write-only interrupt registers. */
+
+#define INTREAD 226
+#define INTSET 226
+#define INTCLEAR 227
+
+/* EXCCAUSE register fields */
+
+#define EXCCAUSE_EXCCAUSE_SHIFT 0
+#define EXCCAUSE_EXCCAUSE_MASK 0x3F
+
+#define EXCCAUSE_ILLEGAL_INSTRUCTION 0
+#define EXCCAUSE_SYSTEM_CALL 1
+#define EXCCAUSE_INSTRUCTION_FETCH_ERROR 2
+#define EXCCAUSE_LOAD_STORE_ERROR 3
+#define EXCCAUSE_LEVEL1_INTERRUPT 4
+#define EXCCAUSE_ALLOCA 5
+#define EXCCAUSE_INTEGER_DIVIDE_BY_ZERO 6
+#define EXCCAUSE_SPECULATION 7
+#define EXCCAUSE_PRIVILEGED 8
+#define EXCCAUSE_UNALIGNED 9
+#define EXCCAUSE_ITLB_MISS 16
+#define EXCCAUSE_ITLB_MULTIHIT 17
+#define EXCCAUSE_ITLB_PRIVILEGE 18
+#define EXCCAUSE_ITLB_SIZE_RESTRICTION 19
+#define EXCCAUSE_FETCH_CACHE_ATTRIBUTE 20
+#define EXCCAUSE_DTLB_MISS 24
+#define EXCCAUSE_DTLB_MULTIHIT 25
+#define EXCCAUSE_DTLB_PRIVILEGE 26
+#define EXCCAUSE_DTLB_SIZE_RESTRICTION 27
+#define EXCCAUSE_LOAD_CACHE_ATTRIBUTE 28
+#define EXCCAUSE_STORE_CACHE_ATTRIBUTE 29
+#define EXCCAUSE_FLOATING_POINT 40
+
+/* PS register fields. */
+
+#define PS_WOE_BIT 18
+#define PS_CALLINC_SHIFT 16
+#define PS_CALLINC_MASK 0x00030000
+#define PS_OWB_SHIFT 8
+#define PS_OWB_MASK 0x00000F00
+#define PS_RING_SHIFT 6
+#define PS_RING_MASK 0x000000C0
+#define PS_UM_BIT 5
+#define PS_EXCM_BIT 4
+#define PS_INTLEVEL_SHIFT 0
+#define PS_INTLEVEL_MASK 0x0000000F
+
+/* DBREAKCn register fields. */
+
+#define DBREAKC_MASK_BIT 0
+#define DBREAKC_MASK_MASK 0x0000003F
+#define DBREAKC_LOAD_BIT 30
+#define DBREAKC_LOAD_MASK 0x40000000
+#define DBREAKC_STOR_BIT 31
+#define DBREAKC_STOR_MASK 0x80000000
+
+/* DEBUGCAUSE register fields. */
+
+#define DEBUGCAUSE_DEBUGINT_BIT 5 /* External debug interrupt */
+#define DEBUGCAUSE_BREAKN_BIT 4 /* BREAK.N instruction */
+#define DEBUGCAUSE_BREAK_BIT 3 /* BREAK instruction */
+#define DEBUGCAUSE_DBREAK_BIT 2 /* DBREAK match */
+#define DEBUGCAUSE_IBREAK_BIT 1 /* IBREAK match */
+#define DEBUGCAUSE_ICOUNT_BIT 0 /* ICOUNT would incr. to zero */
+
+#endif /* _XTENSA_SPECREG_H */
+
struct semid64_ds {
struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
-#if XCHAL_HAVE_LE
+#ifdef __XTENSA_EL__
__kernel_time_t sem_otime; /* last semop time */
unsigned long __unused1;
__kernel_time_t sem_ctime; /* last change time */
unsigned int a0, ps;
__asm__ __volatile__ (
- "movi a14," __stringify (PS_EXCM_MASK) " | 1\n\t"
+ "movi a14," __stringify (PS_EXCM_BIT) " | 1\n\t"
"mov a12, a0\n\t"
"rsr a13," __stringify(SAR) "\n\t"
"xsr a14," __stringify(PS) "\n\t"
#include <asm/processor.h>
#include <linux/stringify.h>
-#if XCHAL_INT_LEVEL(XCHAL_TIMER0_INTERRUPT) == 1
+#define _INTLEVEL(x) XCHAL_INT ## x ## _LEVEL
+#define INTLEVEL(x) _INTLEVEL(x)
+
+#if INTLEVEL(XCHAL_TIMER0_INTERRUPT) == 1
# define LINUX_TIMER 0
-#elif XCHAL_INT_LEVEL(XCHAL_TIMER1_INTERRUPT) == 1
+# define LINUX_TIMER_INT XCHAL_TIMER0_INTERRUPT
+#elif INTLEVEL(XCHAL_TIMER1_INTERRUPT) == 1
# define LINUX_TIMER 1
-#elif XCHAL_INT_LEVEL(XCHAL_TIMER2_INTERRUPT) == 1
+# define LINUX_TIMER_INT XCHAL_TIMER1_INTERRUPT
+#elif INTLEVEL(XCHAL_TIMER2_INTERRUPT) == 1
# define LINUX_TIMER 2
+# define LINUX_TIMER_INT XCHAL_TIMER2_INTERRUPT
#else
# error "Bad timer number for Linux configurations!"
#endif
-#define LINUX_TIMER_INT XCHAL_TIMER_INTERRUPT(LINUX_TIMER)
#define LINUX_TIMER_MASK (1L << LINUX_TIMER_INT)
#define CLOCK_TICK_RATE 1193180 /* (everyone is using this value) */
#define WSR_CCOUNT(r) __asm__("wsr %0,"__stringify(CCOUNT) :: "a" (r))
#define RSR_CCOUNT(r) __asm__("rsr %0,"__stringify(CCOUNT) : "=a" (r))
-#define WSR_CCOMPARE(x,r) __asm__("wsr %0,"__stringify(CCOMPARE_0)"+"__stringify(x) :: "a"(r))
-#define RSR_CCOMPARE(x,r) __asm__("rsr %0,"__stringify(CCOMPARE_0)"+"__stringify(x) : "=a"(r))
+#define WSR_CCOMPARE(x,r) __asm__("wsr %0,"__stringify(CCOMPARE)"+"__stringify(x) :: "a"(r))
+#define RSR_CCOMPARE(x,r) __asm__("rsr %0,"__stringify(CCOMPARE)"+"__stringify(x) : "=a"(r))
static inline unsigned long get_ccount (void)
{
#ifndef _XTENSA_TLBFLUSH_H
#define _XTENSA_TLBFLUSH_H
-#define DEBUG_TLB
-
#ifdef __KERNEL__
-#include <asm/processor.h>
#include <linux/stringify.h>
+#include <asm/processor.h>
+
+#define DTLB_WAY_PGD 7
+
+#define ITLB_ARF_WAYS 4
+#define DTLB_ARF_WAYS 4
+
+#define ITLB_HIT_BIT 3
+#define DTLB_HIT_BIT 4
+
+#ifndef __ASSEMBLY__
/* TLB flushing:
*
/* TLB operations. */
-#define ITLB_WAYS_LOG2 XCHAL_ITLB_WAY_BITS
-#define DTLB_WAYS_LOG2 XCHAL_DTLB_WAY_BITS
-#define ITLB_PROBE_SUCCESS (1 << ITLB_WAYS_LOG2)
-#define DTLB_PROBE_SUCCESS (1 << DTLB_WAYS_LOG2)
-
static inline unsigned long itlb_probe(unsigned long addr)
{
unsigned long tmp;
static inline void invalidate_page_directory (void)
{
- invalidate_dtlb_entry (DTLB_WAY_PGTABLE);
+ invalidate_dtlb_entry (DTLB_WAY_PGD);
+ invalidate_dtlb_entry (DTLB_WAY_PGD+1);
+ invalidate_dtlb_entry (DTLB_WAY_PGD+2);
}
static inline void invalidate_itlb_mapping (unsigned address)
{
unsigned long tlb_entry;
- while ((tlb_entry = itlb_probe (address)) & ITLB_PROBE_SUCCESS)
- invalidate_itlb_entry (tlb_entry);
+ if (((tlb_entry = itlb_probe(address)) & (1 << ITLB_HIT_BIT)) != 0)
+ invalidate_itlb_entry(tlb_entry);
}
static inline void invalidate_dtlb_mapping (unsigned address)
{
unsigned long tlb_entry;
- while ((tlb_entry = dtlb_probe (address)) & DTLB_PROBE_SUCCESS)
- invalidate_dtlb_entry (tlb_entry);
+ if (((tlb_entry = dtlb_probe(address)) & (1 << DTLB_HIT_BIT)) != 0)
+ invalidate_dtlb_entry(tlb_entry);
}
#define check_pgt_cache() do { } while (0)
-#ifdef DEBUG_TLB
-
-/* DO NOT USE THESE FUNCTIONS. These instructions aren't part of the Xtensa
+/*
+ * DO NOT USE THESE FUNCTIONS. These instructions aren't part of the Xtensa
* ISA and exist only for test purposes..
* You may find it helpful for MMU debugging, however.
*
return tmp;
}
-#endif /* DEBUG_TLB */
-
-
+#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
-#endif /* _XTENSA_PGALLOC_H */
+#endif /* _XTENSA_TLBFLUSH_H */
--- /dev/null
+/*
+ * Xtensa processor core configuration information.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1999-2006 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_CORE_H
+#define _XTENSA_CORE_H
+
+
+/****************************************************************************
+ Parameters Useful for Any Code, USER or PRIVILEGED
+ ****************************************************************************/
+
+/*
+ * Note: Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is
+ * configured, and a value of 0 otherwise. These macros are always defined.
+ */
+
+
+/*----------------------------------------------------------------------
+ ISA
+ ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_BE 1 /* big-endian byte ordering */
+#define XCHAL_HAVE_WINDOWED 1 /* windowed registers option */
+#define XCHAL_NUM_AREGS 64 /* num of physical addr regs */
+#define XCHAL_NUM_AREGS_LOG2 6 /* log2(XCHAL_NUM_AREGS) */
+#define XCHAL_MAX_INSTRUCTION_SIZE 3 /* max instr bytes (3..8) */
+#define XCHAL_HAVE_DEBUG 1 /* debug option */
+#define XCHAL_HAVE_DENSITY 1 /* 16-bit instructions */
+#define XCHAL_HAVE_LOOPS 1 /* zero-overhead loops */
+#define XCHAL_HAVE_NSA 1 /* NSA/NSAU instructions */
+#define XCHAL_HAVE_MINMAX 0 /* MIN/MAX instructions */
+#define XCHAL_HAVE_SEXT 0 /* SEXT instruction */
+#define XCHAL_HAVE_CLAMPS 0 /* CLAMPS instruction */
+#define XCHAL_HAVE_MUL16 0 /* MUL16S/MUL16U instructions */
+#define XCHAL_HAVE_MUL32 0 /* MULL instruction */
+#define XCHAL_HAVE_MUL32_HIGH 0 /* MULUH/MULSH instructions */
+#define XCHAL_HAVE_L32R 1 /* L32R instruction */
+#define XCHAL_HAVE_ABSOLUTE_LITERALS 1 /* non-PC-rel (extended) L32R */
+#define XCHAL_HAVE_CONST16 0 /* CONST16 instruction */
+#define XCHAL_HAVE_ADDX 1 /* ADDX#/SUBX# instructions */
+#define XCHAL_HAVE_WIDE_BRANCHES 0 /* B*.W18 or B*.W15 instr's */
+#define XCHAL_HAVE_PREDICTED_BRANCHES 0 /* B[EQ/EQZ/NE/NEZ]T instr's */
+#define XCHAL_HAVE_CALL4AND12 1 /* (obsolete option) */
+#define XCHAL_HAVE_ABS 1 /* ABS instruction */
+/*#define XCHAL_HAVE_POPC 0*/ /* POPC instruction */
+/*#define XCHAL_HAVE_CRC 0*/ /* CRC instruction */
+#define XCHAL_HAVE_RELEASE_SYNC 0 /* L32AI/S32RI instructions */
+#define XCHAL_HAVE_S32C1I 0 /* S32C1I instruction */
+#define XCHAL_HAVE_SPECULATION 0 /* speculation */
+#define XCHAL_HAVE_FULL_RESET 1 /* all regs/state reset */
+#define XCHAL_NUM_CONTEXTS 1 /* */
+#define XCHAL_NUM_MISC_REGS 2 /* num of scratch regs (0..4) */
+#define XCHAL_HAVE_TAP_MASTER 0 /* JTAG TAP control instr's */
+#define XCHAL_HAVE_PRID 1 /* processor ID register */
+#define XCHAL_HAVE_THREADPTR 1 /* THREADPTR register */
+#define XCHAL_HAVE_BOOLEANS 0 /* boolean registers */
+#define XCHAL_HAVE_CP 0 /* CPENABLE reg (coprocessor) */
+#define XCHAL_CP_MAXCFG 0 /* max allowed cp id plus one */
+#define XCHAL_HAVE_MAC16 0 /* MAC16 package */
+#define XCHAL_HAVE_VECTORFPU2005 0 /* vector floating-point pkg */
+#define XCHAL_HAVE_FP 0 /* floating point pkg */
+#define XCHAL_HAVE_VECTRA1 0 /* Vectra I pkg */
+#define XCHAL_HAVE_VECTRALX 0 /* Vectra LX pkg */
+#define XCHAL_HAVE_HIFI2 0 /* HiFi2 Audio Engine pkg */
+
+
+/*----------------------------------------------------------------------
+ MISC
+ ----------------------------------------------------------------------*/
+
+#define XCHAL_NUM_WRITEBUFFER_ENTRIES 4 /* size of write buffer */
+#define XCHAL_INST_FETCH_WIDTH 4 /* instr-fetch width in bytes */
+#define XCHAL_DATA_WIDTH 4 /* data width in bytes */
+/* In T1050, applies to selected core load and store instructions (see ISA): */
+#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* unaligned loads cause exc. */
+#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* unaligned stores cause exc.*/
+
+#define XCHAL_CORE_ID "fsf" /* alphanum core name
+ (CoreID) set in the Xtensa
+ Processor Generator */
+
+#define XCHAL_BUILD_UNIQUE_ID 0x00006700 /* 22-bit sw build ID */
+
+/*
+ * These definitions describe the hardware targeted by this software.
+ */
+#define XCHAL_HW_CONFIGID0 0xC103C3FF /* ConfigID hi 32 bits*/
+#define XCHAL_HW_CONFIGID1 0x0C006700 /* ConfigID lo 32 bits*/
+#define XCHAL_HW_VERSION_NAME "LX2.0.0" /* full version name */
+#define XCHAL_HW_VERSION_MAJOR 2200 /* major ver# of targeted hw */
+#define XCHAL_HW_VERSION_MINOR 0 /* minor ver# of targeted hw */
+#define XTHAL_HW_REL_LX2 1
+#define XTHAL_HW_REL_LX2_0 1
+#define XTHAL_HW_REL_LX2_0_0 1
+#define XCHAL_HW_CONFIGID_RELIABLE 1
+/* If software targets a *range* of hardware versions, these are the bounds: */
+#define XCHAL_HW_MIN_VERSION_MAJOR 2200 /* major v of earliest tgt hw */
+#define XCHAL_HW_MIN_VERSION_MINOR 0 /* minor v of earliest tgt hw */
+#define XCHAL_HW_MAX_VERSION_MAJOR 2200 /* major v of latest tgt hw */
+#define XCHAL_HW_MAX_VERSION_MINOR 0 /* minor v of latest tgt hw */
+
+
+/*----------------------------------------------------------------------
+ CACHE
+ ----------------------------------------------------------------------*/
+
+#define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */
+#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */
+#define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */
+#define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */
+
+#define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */
+#define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */
+
+#define XCHAL_DCACHE_IS_WRITEBACK 0 /* writeback feature */
+
+
+
+
+/****************************************************************************
+ Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code
+ ****************************************************************************/
+
+
+#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY
+
+/*----------------------------------------------------------------------
+ CACHE
+ ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_PIF 1 /* any outbound PIF present */
+
+/* If present, cache size in bytes == (ways * 2^(linewidth + setwidth)). */
+
+/* Number of cache sets in log2(lines per way): */
+#define XCHAL_ICACHE_SETWIDTH 8
+#define XCHAL_DCACHE_SETWIDTH 8
+
+/* Cache set associativity (number of ways): */
+#define XCHAL_ICACHE_WAYS 2
+#define XCHAL_DCACHE_WAYS 2
+
+/* Cache features: */
+#define XCHAL_ICACHE_LINE_LOCKABLE 0
+#define XCHAL_DCACHE_LINE_LOCKABLE 0
+#define XCHAL_ICACHE_ECC_PARITY 0
+#define XCHAL_DCACHE_ECC_PARITY 0
+
+/* Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits): */
+#define XCHAL_CA_BITS 4
+
+
+/*----------------------------------------------------------------------
+ INTERNAL I/D RAM/ROMs and XLMI
+ ----------------------------------------------------------------------*/
+
+#define XCHAL_NUM_INSTROM 0 /* number of core instr. ROMs */
+#define XCHAL_NUM_INSTRAM 0 /* number of core instr. RAMs */
+#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs */
+#define XCHAL_NUM_DATARAM 0 /* number of core data RAMs */
+#define XCHAL_NUM_URAM 0 /* number of core unified RAMs*/
+#define XCHAL_NUM_XLMI 0 /* number of core XLMI ports */
+
+
+/*----------------------------------------------------------------------
+ INTERRUPTS and TIMERS
+ ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_INTERRUPTS 1 /* interrupt option */
+#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* med/high-pri. interrupts */
+#define XCHAL_HAVE_NMI 0 /* non-maskable interrupt */
+#define XCHAL_HAVE_CCOUNT 1 /* CCOUNT reg. (timer option) */
+#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */
+#define XCHAL_NUM_INTERRUPTS 17 /* number of interrupts */
+#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* ceil(log2(NUM_INTERRUPTS)) */
+#define XCHAL_NUM_EXTINTERRUPTS 10 /* num of external interrupts */
+#define XCHAL_NUM_INTLEVELS 4 /* number of interrupt levels
+ (not including level zero) */
+#define XCHAL_EXCM_LEVEL 1 /* level masked by PS.EXCM */
+ /* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */
+
+/* Masks of interrupts at each interrupt level: */
+#define XCHAL_INTLEVEL1_MASK 0x000064F9
+#define XCHAL_INTLEVEL2_MASK 0x00008902
+#define XCHAL_INTLEVEL3_MASK 0x00011204
+#define XCHAL_INTLEVEL4_MASK 0x00000000
+#define XCHAL_INTLEVEL5_MASK 0x00000000
+#define XCHAL_INTLEVEL6_MASK 0x00000000
+#define XCHAL_INTLEVEL7_MASK 0x00000000
+
+/* Masks of interrupts at each range 1..n of interrupt levels: */
+#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x000064F9
+#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x0000EDFB
+#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x0001FFFF
+#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x0001FFFF
+#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x0001FFFF
+#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x0001FFFF
+#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x0001FFFF
+
+/* Level of each interrupt: */
+#define XCHAL_INT0_LEVEL 1
+#define XCHAL_INT1_LEVEL 2
+#define XCHAL_INT2_LEVEL 3
+#define XCHAL_INT3_LEVEL 1
+#define XCHAL_INT4_LEVEL 1
+#define XCHAL_INT5_LEVEL 1
+#define XCHAL_INT6_LEVEL 1
+#define XCHAL_INT7_LEVEL 1
+#define XCHAL_INT8_LEVEL 2
+#define XCHAL_INT9_LEVEL 3
+#define XCHAL_INT10_LEVEL 1
+#define XCHAL_INT11_LEVEL 2
+#define XCHAL_INT12_LEVEL 3
+#define XCHAL_INT13_LEVEL 1
+#define XCHAL_INT14_LEVEL 1
+#define XCHAL_INT15_LEVEL 2
+#define XCHAL_INT16_LEVEL 3
+#define XCHAL_DEBUGLEVEL 4 /* debug interrupt level */
+#define XCHAL_HAVE_DEBUG_EXTERN_INT 0 /* OCD external db interrupt */
+
+/* Type of each interrupt: */
+#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT6_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT7_TYPE XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT10_TYPE XTHAL_INTTYPE_TIMER
+#define XCHAL_INT11_TYPE XTHAL_INTTYPE_TIMER
+#define XCHAL_INT12_TYPE XTHAL_INTTYPE_TIMER
+#define XCHAL_INT13_TYPE XTHAL_INTTYPE_SOFTWARE
+#define XCHAL_INT14_TYPE XTHAL_INTTYPE_SOFTWARE
+#define XCHAL_INT15_TYPE XTHAL_INTTYPE_SOFTWARE
+#define XCHAL_INT16_TYPE XTHAL_INTTYPE_SOFTWARE
+
+/* Masks of interrupts for each type of interrupt: */
+#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFFE0000
+#define XCHAL_INTTYPE_MASK_SOFTWARE 0x0001E000
+#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x00000380
+#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000007F
+#define XCHAL_INTTYPE_MASK_TIMER 0x00001C00
+#define XCHAL_INTTYPE_MASK_NMI 0x00000000
+#define XCHAL_INTTYPE_MASK_WRITE_ERROR 0x00000000
+
+/* Interrupt numbers assigned to specific interrupt sources: */
+#define XCHAL_TIMER0_INTERRUPT 10 /* CCOMPARE0 */
+#define XCHAL_TIMER1_INTERRUPT 11 /* CCOMPARE1 */
+#define XCHAL_TIMER2_INTERRUPT 12 /* CCOMPARE2 */
+#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED
+
+/* Interrupt numbers for levels at which only one interrupt is configured: */
+/* (There are many interrupts each at level(s) 1, 2, 3.) */
+
+
+/*
+ * External interrupt vectors/levels.
+ * These macros describe how Xtensa processor interrupt numbers
+ * (as numbered internally, eg. in INTERRUPT and INTENABLE registers)
+ * map to external BInterrupt<n> pins, for those interrupts
+ * configured as external (level-triggered, edge-triggered, or NMI).
+ * See the Xtensa processor databook for more details.
+ */
+
+/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */
+#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */
+#define XCHAL_EXTINT1_NUM 1 /* (intlevel 2) */
+#define XCHAL_EXTINT2_NUM 2 /* (intlevel 3) */
+#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */
+#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */
+#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */
+#define XCHAL_EXTINT6_NUM 6 /* (intlevel 1) */
+#define XCHAL_EXTINT7_NUM 7 /* (intlevel 1) */
+#define XCHAL_EXTINT8_NUM 8 /* (intlevel 2) */
+#define XCHAL_EXTINT9_NUM 9 /* (intlevel 3) */
+
+
+/*----------------------------------------------------------------------
+ EXCEPTIONS and VECTORS
+ ----------------------------------------------------------------------*/
+
+#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture
+ number: 1 == XEA1 (old)
+ 2 == XEA2 (new)
+ 0 == XEAX (extern) */
+#define XCHAL_HAVE_XEA1 0 /* Exception Architecture 1 */
+#define XCHAL_HAVE_XEA2 1 /* Exception Architecture 2 */
+#define XCHAL_HAVE_XEAX 0 /* External Exception Arch. */
+#define XCHAL_HAVE_EXCEPTIONS 1 /* exception option */
+#define XCHAL_HAVE_MEM_ECC_PARITY 0 /* local memory ECC/parity */
+
+#define XCHAL_RESET_VECTOR_VADDR 0xFE000020
+#define XCHAL_RESET_VECTOR_PADDR 0xFE000020
+#define XCHAL_USER_VECTOR_VADDR 0xD0000220
+#define XCHAL_USER_VECTOR_PADDR 0x00000220
+#define XCHAL_KERNEL_VECTOR_VADDR 0xD0000200
+#define XCHAL_KERNEL_VECTOR_PADDR 0x00000200
+#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0xD0000290
+#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x00000290
+#define XCHAL_WINDOW_VECTORS_VADDR 0xD0000000
+#define XCHAL_WINDOW_VECTORS_PADDR 0x00000000
+#define XCHAL_INTLEVEL2_VECTOR_VADDR 0xD0000240
+#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x00000240
+#define XCHAL_INTLEVEL3_VECTOR_VADDR 0xD0000250
+#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x00000250
+#define XCHAL_INTLEVEL4_VECTOR_VADDR 0xFE000520
+#define XCHAL_INTLEVEL4_VECTOR_PADDR 0xFE000520
+#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL4_VECTOR_VADDR
+#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL4_VECTOR_PADDR
+
+
+/*----------------------------------------------------------------------
+ DEBUG
+ ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_OCD 1 /* OnChipDebug option */
+#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */
+#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */
+#define XCHAL_HAVE_OCD_DIR_ARRAY 1 /* faster OCD option */
+
+
+/*----------------------------------------------------------------------
+ MMU
+ ----------------------------------------------------------------------*/
+
+/* See <xtensa/config/core-matmap.h> header file for more details. */
+
+#define XCHAL_HAVE_TLBS 1 /* inverse of HAVE_CACHEATTR */
+#define XCHAL_HAVE_SPANNING_WAY 0 /* one way maps I+D 4GB vaddr */
+#define XCHAL_HAVE_IDENTITY_MAP 0 /* vaddr == paddr always */
+#define XCHAL_HAVE_CACHEATTR 0 /* CACHEATTR register present */
+#define XCHAL_HAVE_MIMIC_CACHEATTR 0 /* region protection */
+#define XCHAL_HAVE_XLT_CACHEATTR 0 /* region prot. w/translation */
+#define XCHAL_HAVE_PTP_MMU 1 /* full MMU (with page table
+ [autorefill] and protection)
+ usable for an MMU-based OS */
+/* If none of the above last 4 are set, it's a custom TLB configuration. */
+#define XCHAL_ITLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */
+#define XCHAL_DTLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */
+
+#define XCHAL_MMU_ASID_BITS 8 /* number of bits in ASIDs */
+#define XCHAL_MMU_RINGS 4 /* number of rings (1..4) */
+#define XCHAL_MMU_RING_BITS 2 /* num of bits in RING field */
+
+#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */
+
+
+#endif /* _XTENSA_CORE_CONFIGURATION_H */
+
--- /dev/null
+/*
+ * Xtensa processor core configuration information.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1999-2006 Tensilica Inc.
+ */
+
+#ifndef XTENSA_TIE_H
+#define XTENSA_TIE_H
+
+/*----------------------------------------------------------------------
+ COPROCESSORS and EXTRA STATE
+ ----------------------------------------------------------------------*/
+
+#define XCHAL_CP_NUM 0 /* number of coprocessors */
+#define XCHAL_CP_MASK 0x00
+
+#endif /*XTENSA_CONFIG_TIE_H*/
+
+++ /dev/null
-#ifndef XTENSA_CACHEASM_H
-#define XTENSA_CACHEASM_H
-
-/*
- * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
- *
- * include/asm-xtensa/xtensa/cacheasm.h -- assembler-specific cache
- * related definitions that depend on CORE configuration.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2002 Tensilica Inc.
- */
-
-
-#include <xtensa/coreasm.h>
-
-
-/*
- * This header file defines assembler macros of the form:
- * <x>cache_<func>
- * where <x> is 'i' or 'd' for instruction and data caches,
- * and <func> indicates the function of the macro.
- *
- * The following functions <func> are defined,
- * and apply only to the specified cache (I or D):
- *
- * reset
- * Resets the cache.
- *
- * sync
- * Makes sure any previous cache instructions have been completed;
- * ie. makes sure any previous cache control operations
- * have had full effect and been synchronized to memory.
- * Eg. any invalidate completed [so as not to generate a hit],
- * any writebacks or other pipelined writes written to memory, etc.
- *
- * invalidate_line (single cache line)
- * invalidate_region (specified memory range)
- * invalidate_all (entire cache)
- * Invalidates all cache entries that cache
- * data from the specified memory range.
- * NOTE: locked entries are not invalidated.
- *
- * writeback_line (single cache line)
- * writeback_region (specified memory range)
- * writeback_all (entire cache)
- * Writes back to memory all dirty cache entries
- * that cache data from the specified memory range,
- * and marks these entries as clean.
- * NOTE: on some future implementations, this might
- * also invalidate.
- * NOTE: locked entries are written back, but never invalidated.
- * NOTE: instruction caches never implement writeback.
- *
- * writeback_inv_line (single cache line)
- * writeback_inv_region (specified memory range)
- * writeback_inv_all (entire cache)
- * Writes back to memory all dirty cache entries
- * that cache data from the specified memory range,
- * and invalidates these entries (including all clean
- * cache entries that cache data from that range).
- * NOTE: locked entries are written back but not invalidated.
- * NOTE: instruction caches never implement writeback.
- *
- * lock_line (single cache line)
- * lock_region (specified memory range)
- * Prefetch and lock the specified memory range into cache.
- * NOTE: if any part of the specified memory range cannot
- * be locked, a ??? exception occurs. These macros don't
- * do anything special (yet anyway) to handle this situation.
- *
- * unlock_line (single cache line)
- * unlock_region (specified memory range)
- * unlock_all (entire cache)
- * Unlock cache entries that cache the specified memory range.
- * Entries not already locked are unaffected.
- */
-
-
-
-/*************************** GENERIC -- ALL CACHES ***************************/
-
-
-/*
- * The following macros assume the following cache size/parameter limits
- * in the current Xtensa core implementation:
- * cache size: 1024 bytes minimum
- * line size: 16 - 64 bytes
- * way count: 1 - 4
- *
- * Minimum entries per way (ie. per associativity) = 1024 / 64 / 4 = 4
- * Hence the assumption that each loop can execute four cache instructions.
- *
- * Correspondingly, the offset range of instructions is assumed able to cover
- * four lines, ie. offsets {0,1,2,3} * line_size are assumed valid for
- * both hit and indexed cache instructions. Ie. these offsets are all
- * valid: 0, 16, 32, 48, 64, 96, 128, 192 (for line sizes 16, 32, 64).
- * This is true of all original cache instructions
- * (dhi, ihi, dhwb, dhwbi, dii, iii) which have offsets
- * of 0 to 1020 in multiples of 4 (ie. 8 bits shifted by 2).
- * This is also true of subsequent cache instructions
- * (dhu, ihu, diu, iiu, diwb, diwbi, dpfl, ipfl) which have offsets
- * of 0 to 240 in multiples of 16 (ie. 4 bits shifted by 4).
- *
- * (Maximum cache size, currently 32k, doesn't affect the following macros.
- * Cache ways > MMU min page size cause aliasing but that's another matter.)
- */
-
-
-
-/*
- * Macro to apply an 'indexed' cache instruction to the entire cache.
- *
- * Parameters:
- * cainst instruction/ that takes an address register parameter
- * and an offset parameter (in range 0 .. 3*linesize).
- * size size of cache in bytes
- * linesize size of cache line in bytes
- * assoc_or1 number of associativities (ways/sets) in cache
- * if all sets affected by cainst,
- * or 1 if only one set (or not all sets) of the cache
- * is affected by cainst (eg. DIWB or DIWBI [not yet ISA defined]).
- * aa, ab unique address registers (temporaries)
- */
-
- .macro cache_index_all cainst, size, linesize, assoc_or1, aa, ab
-
- // Sanity-check on cache parameters:
- .ifne (\size % (\linesize * \assoc_or1 * 4))
- .err // cache configuration outside expected/supported range!
- .endif
-
- // \size byte cache, \linesize byte lines, \assoc_or1 way(s) affected by each \cainst.
- movi \aa, (\size / (\linesize * \assoc_or1 * 4))
- // Possible improvement: need only loop if \aa > 1 ;
- // however that particular condition is highly unlikely.
- movi \ab, 0 // to iterate over cache
- floop \aa, cachex\@
- \cainst \ab, 0*\linesize
- \cainst \ab, 1*\linesize
- \cainst \ab, 2*\linesize
- \cainst \ab, 3*\linesize
- addi \ab, \ab, 4*\linesize // move to next line
- floopend \aa, cachex\@
-
- .endm
-
-
-/*
- * Macro to apply a 'hit' cache instruction to a memory region,
- * ie. to any cache entries that cache a specified portion (region) of memory.
- * Takes care of the unaligned cases, ie. may apply to one
- * more cache line than $asize / lineSize if $aaddr is not aligned.
- *
- *
- * Parameters are:
- * cainst instruction/macro that takes an address register parameter
- * and an offset parameter (currently always zero)
- * and generates a cache instruction (eg. "dhi", "dhwb", "ihi", etc.)
- * linesize_log2 log2(size of cache line in bytes)
- * addr register containing start address of region (clobbered)
- * asize register containing size of the region in bytes (clobbered)
- * askew unique register used as temporary
- *
- * !?!?! 2DO: optimization: iterate max(cache_size and \asize) / linesize
- */
-
- .macro cache_hit_region cainst, linesize_log2, addr, asize, askew
-
- // Make \asize the number of iterations:
- extui \askew, \addr, 0, \linesize_log2 // get unalignment amount of \addr
- add \asize, \asize, \askew // ... and add it to \asize
- addi \asize, \asize, (1 << \linesize_log2) - 1 // round up!
- srli \asize, \asize, \linesize_log2
-
- // Iterate over region:
- floopnez \asize, cacheh\@
- \cainst \addr, 0
- addi \addr, \addr, (1 << \linesize_log2) // move to next line
- floopend \asize, cacheh\@
-
- .endm
-
-
-
-
-
-/*************************** INSTRUCTION CACHE ***************************/
-
-
-/*
- * Reset/initialize the instruction cache by simply invalidating it:
- * (need to unlock first also, if cache locking implemented):
- *
- * Parameters:
- * aa, ab unique address registers (temporaries)
- */
- .macro icache_reset aa, ab
- icache_unlock_all \aa, \ab
- icache_invalidate_all \aa, \ab
- .endm
-
-
-/*
- * Synchronize after an instruction cache operation,
- * to be sure everything is in sync with memory as to be
- * expected following any previous instruction cache control operations.
- *
- * Parameters are:
- * ar an address register (temporary) (currently unused, but may be used in future)
- */
- .macro icache_sync ar
-#if XCHAL_ICACHE_SIZE > 0
- isync
-#endif
- .endm
-
-
-
-/*
- * Invalidate a single line of the instruction cache.
- * Parameters are:
- * ar address register that contains (virtual) address to invalidate
- * (may get clobbered in a future implementation, but not currently)
- * offset (optional) offset to add to \ar to compute effective address to invalidate
- * (note: some number of lsbits are ignored)
- */
- .macro icache_invalidate_line ar, offset
-#if XCHAL_ICACHE_SIZE > 0
- ihi \ar, \offset // invalidate icache line
- /*
- * NOTE: in some version of the silicon [!!!SHOULD HAVE BEEN DOCUMENTED!!!]
- * 'ihi' doesn't work, so it had been replaced with 'iii'
- * (which would just invalidate more than it should,
- * which should be okay other than the performance hit
- * because cache locking did not exist in that version,
- * unless user somehow relies on something being cached).
- * [WHAT VERSION IS IT!!?!?
- * IS THERE ANY WAY TO TEST FOR THAT HERE, TO OUTPUT 'III' ONLY IF NEEDED!?!?].
- *
- * iii \ar, \offset
- */
- icache_sync \ar
-#endif
- .endm
-
-
-
-
-/*
- * Invalidate instruction cache entries that cache a specified portion of memory.
- * Parameters are:
- * astart start address (register gets clobbered)
- * asize size of the region in bytes (register gets clobbered)
- * ac unique register used as temporary
- */
- .macro icache_invalidate_region astart, asize, ac
-#if XCHAL_ICACHE_SIZE > 0
- // Instruction cache region invalidation:
- cache_hit_region ihi, XCHAL_ICACHE_LINEWIDTH, \astart, \asize, \ac
- icache_sync \ac
- // End of instruction cache region invalidation
-#endif
- .endm
-
-
-
-/*
- * Invalidate entire instruction cache.
- *
- * Parameters:
- * aa, ab unique address registers (temporaries)
- */
- .macro icache_invalidate_all aa, ab
-#if XCHAL_ICACHE_SIZE > 0
- // Instruction cache invalidation:
- cache_index_all iii, XCHAL_ICACHE_SIZE, XCHAL_ICACHE_LINESIZE, XCHAL_ICACHE_WAYS, \aa, \ab
- icache_sync \aa
- // End of instruction cache invalidation
-#endif
- .endm
-
-
-
-/*
- * Lock (prefetch & lock) a single line of the instruction cache.
- *
- * Parameters are:
- * ar address register that contains (virtual) address to lock
- * (may get clobbered in a future implementation, but not currently)
- * offset offset to add to \ar to compute effective address to lock
- * (note: some number of lsbits are ignored)
- */
- .macro icache_lock_line ar, offset
-#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
- ipfl \ar, \offset /* prefetch and lock icache line */
- icache_sync \ar
-#endif
- .endm
-
-
-
-/*
- * Lock (prefetch & lock) a specified portion of memory into the instruction cache.
- * Parameters are:
- * astart start address (register gets clobbered)
- * asize size of the region in bytes (register gets clobbered)
- * ac unique register used as temporary
- */
- .macro icache_lock_region astart, asize, ac
-#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
- // Instruction cache region lock:
- cache_hit_region ipfl, XCHAL_ICACHE_LINEWIDTH, \astart, \asize, \ac
- icache_sync \ac
- // End of instruction cache region lock
-#endif
- .endm
-
-
-
-/*
- * Unlock a single line of the instruction cache.
- *
- * Parameters are:
- * ar address register that contains (virtual) address to unlock
- * (may get clobbered in a future implementation, but not currently)
- * offset offset to add to \ar to compute effective address to unlock
- * (note: some number of lsbits are ignored)
- */
- .macro icache_unlock_line ar, offset
-#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
- ihu \ar, \offset /* unlock icache line */
- icache_sync \ar
-#endif
- .endm
-
-
-
-/*
- * Unlock a specified portion of memory from the instruction cache.
- * Parameters are:
- * astart start address (register gets clobbered)
- * asize size of the region in bytes (register gets clobbered)
- * ac unique register used as temporary
- */
- .macro icache_unlock_region astart, asize, ac
-#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
- // Instruction cache region unlock:
- cache_hit_region ihu, XCHAL_ICACHE_LINEWIDTH, \astart, \asize, \ac
- icache_sync \ac
- // End of instruction cache region unlock
-#endif
- .endm
-
-
-
-/*
- * Unlock entire instruction cache.
- *
- * Parameters:
- * aa, ab unique address registers (temporaries)
- */
- .macro icache_unlock_all aa, ab
-#if XCHAL_ICACHE_SIZE > 0 && XCHAL_ICACHE_LINE_LOCKABLE
- // Instruction cache unlock:
- cache_index_all iiu, XCHAL_ICACHE_SIZE, XCHAL_ICACHE_LINESIZE, 1, \aa, \ab
- icache_sync \aa
- // End of instruction cache unlock
-#endif
- .endm
-
-
-
-
-
-/*************************** DATA CACHE ***************************/
-
-
-
-/*
- * Reset/initialize the data cache by simply invalidating it
- * (need to unlock first also, if cache locking implemented):
- *
- * Parameters:
- * aa, ab unique address registers (temporaries)
- */
- .macro dcache_reset aa, ab
- dcache_unlock_all \aa, \ab
- dcache_invalidate_all \aa, \ab
- .endm
-
-
-
-
-/*
- * Synchronize after a data cache operation,
- * to be sure everything is in sync with memory as to be
- * expected following any previous data cache control operations.
- *
- * Parameters are:
- * ar an address register (temporary) (currently unused, but may be used in future)
- */
- .macro dcache_sync ar
-#if XCHAL_DCACHE_SIZE > 0
- // This previous sequence errs on the conservative side (too much so); a DSYNC should be sufficient:
- //memw // synchronize data cache changes relative to subsequent memory accesses
- //isync // be conservative and ISYNC as well (just to be sure)
-
- dsync
-#endif
- .endm
-
-
-
-/*
- * Synchronize after a data store operation,
- * to be sure the stored data is completely off the processor
- * (and assuming there is no buffering outside the processor,
- * that the data is in memory). This may be required to
- * ensure that the processor's write buffers are emptied.
- * A MEMW followed by a read guarantees this, by definition.
- * We also try to make sure the read itself completes.
- *
- * Parameters are:
- * ar an address register (temporary)
- */
- .macro write_sync ar
- memw // ensure previous memory accesses are complete prior to subsequent memory accesses
- l32i \ar, sp, 0 // completing this read ensures any previous write has completed, because of MEMW
- //slot
- add \ar, \ar, \ar // use the result of the read to help ensure the read completes (in future architectures)
- .endm
-
-
-/*
- * Invalidate a single line of the data cache.
- * Parameters are:
- * ar address register that contains (virtual) address to invalidate
- * (may get clobbered in a future implementation, but not currently)
- * offset (optional) offset to add to \ar to compute effective address to invalidate
- * (note: some number of lsbits are ignored)
- */
- .macro dcache_invalidate_line ar, offset
-#if XCHAL_DCACHE_SIZE > 0
- dhi \ar, \offset
- dcache_sync \ar
-#endif
- .endm
-
-
-
-
-
-/*
- * Invalidate data cache entries that cache a specified portion of memory.
- * Parameters are:
- * astart start address (register gets clobbered)
- * asize size of the region in bytes (register gets clobbered)
- * ac unique register used as temporary
- */
- .macro dcache_invalidate_region astart, asize, ac
-#if XCHAL_DCACHE_SIZE > 0
- // Data cache region invalidation:
- cache_hit_region dhi, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
- dcache_sync \ac
- // End of data cache region invalidation
-#endif
- .endm
-
-
-
-#if 0
-/*
- * This is a work-around for a bug in SiChip1 (???).
- * There should be a proper mechanism for not outputting
- * these instructions when not needed.
- * To enable work-around, uncomment this and replace 'dii'
- * with 'dii_s1' everywhere, eg. in dcache_invalidate_all
- * macro below.
- */
- .macro dii_s1 ar, offset
- dii \ar, \offset
- or \ar, \ar, \ar
- or \ar, \ar, \ar
- or \ar, \ar, \ar
- or \ar, \ar, \ar
- .endm
-#endif
-
-
-/*
- * Invalidate entire data cache.
- *
- * Parameters:
- * aa, ab unique address registers (temporaries)
- */
- .macro dcache_invalidate_all aa, ab
-#if XCHAL_DCACHE_SIZE > 0
- // Data cache invalidation:
- cache_index_all dii, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE, XCHAL_DCACHE_WAYS, \aa, \ab
- dcache_sync \aa
- // End of data cache invalidation
-#endif
- .endm
-
-
-
-/*
- * Writeback a single line of the data cache.
- * Parameters are:
- * ar address register that contains (virtual) address to writeback
- * (may get clobbered in a future implementation, but not currently)
- * offset offset to add to \ar to compute effective address to writeback
- * (note: some number of lsbits are ignored)
- */
- .macro dcache_writeback_line ar, offset
-#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_IS_WRITEBACK
- dhwb \ar, \offset
- dcache_sync \ar
-#endif
- .endm
-
-
-
-/*
- * Writeback dirty data cache entries that cache a specified portion of memory.
- * Parameters are:
- * astart start address (register gets clobbered)
- * asize size of the region in bytes (register gets clobbered)
- * ac unique register used as temporary
- */
- .macro dcache_writeback_region astart, asize, ac
-#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_IS_WRITEBACK
- // Data cache region writeback:
- cache_hit_region dhwb, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
- dcache_sync \ac
- // End of data cache region writeback
-#endif
- .endm
-
-
-
-/*
- * Writeback entire data cache.
- * Parameters:
- * aa, ab unique address registers (temporaries)
- */
- .macro dcache_writeback_all aa, ab
-#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_IS_WRITEBACK
- // Data cache writeback:
- cache_index_all diwb, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE, 1, \aa, \ab
- dcache_sync \aa
- // End of data cache writeback
-#endif
- .endm
-
-
-
-/*
- * Writeback and invalidate a single line of the data cache.
- * Parameters are:
- * ar address register that contains (virtual) address to writeback and invalidate
- * (may get clobbered in a future implementation, but not currently)
- * offset offset to add to \ar to compute effective address to writeback and invalidate
- * (note: some number of lsbits are ignored)
- */
- .macro dcache_writeback_inv_line ar, offset
-#if XCHAL_DCACHE_SIZE > 0
- dhwbi \ar, \offset /* writeback and invalidate dcache line */
- dcache_sync \ar
-#endif
- .endm
-
-
-
-/*
- * Writeback and invalidate data cache entries that cache a specified portion of memory.
- * Parameters are:
- * astart start address (register gets clobbered)
- * asize size of the region in bytes (register gets clobbered)
- * ac unique register used as temporary
- */
- .macro dcache_writeback_inv_region astart, asize, ac
-#if XCHAL_DCACHE_SIZE > 0
- // Data cache region writeback and invalidate:
- cache_hit_region dhwbi, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
- dcache_sync \ac
- // End of data cache region writeback and invalidate
-#endif
- .endm
-
-
-
-/*
- * Writeback and invalidate entire data cache.
- * Parameters:
- * aa, ab unique address registers (temporaries)
- */
- .macro dcache_writeback_inv_all aa, ab
-#if XCHAL_DCACHE_SIZE > 0
- // Data cache writeback and invalidate:
-#if XCHAL_DCACHE_IS_WRITEBACK
- cache_index_all diwbi, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE, 1, \aa, \ab
- dcache_sync \aa
-#else /*writeback*/
- // Data cache does not support writeback, so just invalidate: */
- dcache_invalidate_all \aa, \ab
-#endif /*writeback*/
- // End of data cache writeback and invalidate
-#endif
- .endm
-
-
-
-
-/*
- * Lock (prefetch & lock) a single line of the data cache.
- *
- * Parameters are:
- * ar address register that contains (virtual) address to lock
- * (may get clobbered in a future implementation, but not currently)
- * offset offset to add to \ar to compute effective address to lock
- * (note: some number of lsbits are ignored)
- */
- .macro dcache_lock_line ar, offset
-#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
- dpfl \ar, \offset /* prefetch and lock dcache line */
- dcache_sync \ar
-#endif
- .endm
-
-
-
-/*
- * Lock (prefetch & lock) a specified portion of memory into the data cache.
- * Parameters are:
- * astart start address (register gets clobbered)
- * asize size of the region in bytes (register gets clobbered)
- * ac unique register used as temporary
- */
- .macro dcache_lock_region astart, asize, ac
-#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
- // Data cache region lock:
- cache_hit_region dpfl, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
- dcache_sync \ac
- // End of data cache region lock
-#endif
- .endm
-
-
-
-/*
- * Unlock a single line of the data cache.
- *
- * Parameters are:
- * ar address register that contains (virtual) address to unlock
- * (may get clobbered in a future implementation, but not currently)
- * offset offset to add to \ar to compute effective address to unlock
- * (note: some number of lsbits are ignored)
- */
- .macro dcache_unlock_line ar, offset
-#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
- dhu \ar, \offset /* unlock dcache line */
- dcache_sync \ar
-#endif
- .endm
-
-
-
-/*
- * Unlock a specified portion of memory from the data cache.
- * Parameters are:
- * astart start address (register gets clobbered)
- * asize size of the region in bytes (register gets clobbered)
- * ac unique register used as temporary
- */
- .macro dcache_unlock_region astart, asize, ac
-#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
- // Data cache region unlock:
- cache_hit_region dhu, XCHAL_DCACHE_LINEWIDTH, \astart, \asize, \ac
- dcache_sync \ac
- // End of data cache region unlock
-#endif
- .endm
-
-
-
-/*
- * Unlock entire data cache.
- *
- * Parameters:
- * aa, ab unique address registers (temporaries)
- */
- .macro dcache_unlock_all aa, ab
-#if XCHAL_DCACHE_SIZE > 0 && XCHAL_DCACHE_LINE_LOCKABLE
- // Data cache unlock:
- cache_index_all diu, XCHAL_DCACHE_SIZE, XCHAL_DCACHE_LINESIZE, 1, \aa, \ab
- dcache_sync \aa
- // End of data cache unlock
-#endif
- .endm
-
-
-#endif /*XTENSA_CACHEASM_H*/
-
+++ /dev/null
-#ifndef XTENSA_CACHEATTRASM_H
-#define XTENSA_CACHEATTRASM_H
-
-/*
- * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
- *
- * include/asm-xtensa/xtensa/cacheattrasm.h -- assembler-specific
- * CACHEATTR register related definitions that depend on CORE
- * configuration.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2002 Tensilica Inc.
- */
-
-
-#include <xtensa/coreasm.h>
-
-
-/*
- * This header file defines assembler macros of the form:
- * <x>cacheattr_<func>
- * where:
- * <x> is 'i', 'd' or absent for instruction, data
- * or both caches; and
- * <func> indicates the function of the macro.
- *
- * The following functions are defined:
- *
- * icacheattr_get
- * Reads I-cache CACHEATTR into a2 (clobbers a3-a5).
- *
- * dcacheattr_get
- * Reads D-cache CACHEATTR into a2 (clobbers a3-a5).
- * (Note: for configs with a real CACHEATTR register, the
- * above two macros are identical.)
- *
- * cacheattr_set
- * Writes both I-cache and D-cache CACHEATTRs from a2 (a3-a8 clobbered).
- * Works even when changing one's own code's attributes.
- *
- * icacheattr_is_enabled label
- * Branches to \label if I-cache appears to have been enabled
- * (eg. if CACHEATTR contains a cache-enabled attribute).
- * (clobbers a2-a5,SAR)
- *
- * dcacheattr_is_enabled label
- * Branches to \label if D-cache appears to have been enabled
- * (eg. if CACHEATTR contains a cache-enabled attribute).
- * (clobbers a2-a5,SAR)
- *
- * cacheattr_is_enabled label
- * Branches to \label if either I-cache or D-cache appears to have been enabled
- * (eg. if CACHEATTR contains a cache-enabled attribute).
- * (clobbers a2-a5,SAR)
- *
- * The following macros are only defined under certain conditions:
- *
- * icacheattr_set (if XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR)
- * Writes I-cache CACHEATTR from a2 (a3-a8 clobbered).
- *
- * dcacheattr_set (if XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR)
- * Writes D-cache CACHEATTR from a2 (a3-a8 clobbered).
- */
-
-
-
-/*************************** GENERIC -- ALL CACHES ***************************/
-
-/*
- * _cacheattr_get
- *
- * (Internal macro.)
- * Returns value of CACHEATTR register (or closest equivalent) in a2.
- *
- * Entry:
- * (none)
- * Exit:
- * a2 value read from CACHEATTR
- * a3-a5 clobbered (temporaries)
- */
- .macro _cacheattr_get tlb
-#if XCHAL_HAVE_CACHEATTR
- rsr a2, CACHEATTR
-#elif XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
- // We have a config that "mimics" CACHEATTR using a simplified
- // "MMU" composed of a single statically-mapped way.
- // DTLB and ITLB are independent, so there's no single
- // cache attribute that can describe both. So for now
- // just return the DTLB state.
- movi a5, 0xE0000000
- movi a2, 0
- movi a3, 0
-1: add a3, a3, a5 // next segment
- r&tlb&1 a4, a3 // get PPN+CA of segment at 0xE0000000, 0xC0000000, ..., 0
- dsync // interlock???
- slli a2, a2, 4
- extui a4, a4, 0, 4 // extract CA
- or a2, a2, a4
- bnez a3, 1b
-#else
- // This macro isn't applicable to arbitrary MMU configurations.
- // Just return zero.
- movi a2, 0
-#endif
- .endm
-
- .macro icacheattr_get
- _cacheattr_get itlb
- .endm
-
- .macro dcacheattr_get
- _cacheattr_get dtlb
- .endm
-
-
-#define XCHAL_CACHEATTR_ALL_BYPASS 0x22222222 /* default (powerup/reset) value of CACHEATTR, all BYPASS
- mode (ie. disabled/bypassed caches) */
-
-#if XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
-
-#define XCHAL_FCA_ENAMASK 0x001A /* bitmap of fetch attributes that require enabled icache */
-#define XCHAL_LCA_ENAMASK 0x0003 /* bitmap of load attributes that require enabled dcache */
-#define XCHAL_SCA_ENAMASK 0x0003 /* bitmap of store attributes that require enabled dcache */
-#define XCHAL_LSCA_ENAMASK (XCHAL_LCA_ENAMASK|XCHAL_SCA_ENAMASK) /* l/s attrs requiring enabled dcache */
-#define XCHAL_ALLCA_ENAMASK (XCHAL_FCA_ENAMASK|XCHAL_LSCA_ENAMASK) /* all attrs requiring enabled caches */
-
-/*
- * _cacheattr_is_enabled
- *
- * (Internal macro.)
- * Branches to \label if CACHEATTR in a2 indicates an enabled
- * cache, using mask in a3.
- *
- * Parameters:
- * label where to branch to if cache is enabled
- * Entry:
- * a2 contains CACHEATTR value used to determine whether
- * caches are enabled
- * a3 16-bit constant where each bit correspond to
- * one of the 16 possible CA values (in a CACHEATTR mask);
- * CA values that indicate the cache is enabled
- * have their corresponding bit set in this mask
- * (eg. use XCHAL_xCA_ENAMASK , above)
- * Exit:
- * a2,a4,a5 clobbered
- * SAR clobbered
- */
- .macro _cacheattr_is_enabled label
- movi a4, 8 // loop 8 times
-.Lcaife\@:
- extui a5, a2, 0, 4 // get CA nibble
- ssr a5 // index into mask according to CA...
- srl a5, a3 // ...and get CA's mask bit in a5 bit 0
- bbsi.l a5, 0, \label // if CA indicates cache enabled, jump to label
- srli a2, a2, 4 // next nibble
- addi a4, a4, -1
- bnez a4, .Lcaife\@ // loop for each nibble
- .endm
-
-#else /* XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR */
- .macro _cacheattr_is_enabled label
- j \label // macro not applicable, assume caches always enabled
- .endm
-#endif /* XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR */
-
-
-
-/*
- * icacheattr_is_enabled
- *
- * Branches to \label if I-cache is enabled.
- *
- * Parameters:
- * label where to branch to if icache is enabled
- * Entry:
- * (none)
- * Exit:
- * a2-a5, SAR clobbered (temporaries)
- */
- .macro icacheattr_is_enabled label
-#if XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
- icacheattr_get
- movi a3, XCHAL_FCA_ENAMASK
-#endif
- _cacheattr_is_enabled \label
- .endm
-
-/*
- * dcacheattr_is_enabled
- *
- * Branches to \label if D-cache is enabled.
- *
- * Parameters:
- * label where to branch to if dcache is enabled
- * Entry:
- * (none)
- * Exit:
- * a2-a5, SAR clobbered (temporaries)
- */
- .macro dcacheattr_is_enabled label
-#if XCHAL_HAVE_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
- dcacheattr_get
- movi a3, XCHAL_LSCA_ENAMASK
-#endif
- _cacheattr_is_enabled \label
- .endm
-
-/*
- * cacheattr_is_enabled
- *
- * Branches to \label if either I-cache or D-cache is enabled.
- *
- * Parameters:
- * label where to branch to if a cache is enabled
- * Entry:
- * (none)
- * Exit:
- * a2-a5, SAR clobbered (temporaries)
- */
- .macro cacheattr_is_enabled label
-#if XCHAL_HAVE_CACHEATTR
- rsr a2, CACHEATTR
- movi a3, XCHAL_ALLCA_ENAMASK
-#elif XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
- icacheattr_get
- movi a3, XCHAL_FCA_ENAMASK
- _cacheattr_is_enabled \label
- dcacheattr_get
- movi a3, XCHAL_LSCA_ENAMASK
-#endif
- _cacheattr_is_enabled \label
- .endm
-
-
-
-/*
- * The ISA does not have a defined way to change the
- * instruction cache attributes of the running code,
- * ie. of the memory area that encloses the current PC.
- * However, each micro-architecture (or class of
- * configurations within a micro-architecture)
- * provides a way to deal with this issue.
- *
- * Here are a few macros used to implement the relevant
- * approach taken.
- */
-
-#if XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
- // We have a config that "mimics" CACHEATTR using a simplified
- // "MMU" composed of a single statically-mapped way.
-
-/*
- * icacheattr_set
- *
- * Entry:
- * a2 cacheattr value to set
- * Exit:
- * a2 unchanged
- * a3-a8 clobbered (temporaries)
- */
- .macro icacheattr_set
-
- movi a5, 0xE0000000 // mask of upper 3 bits
- movi a6, 3f // PC where ITLB is set
- movi a3, 0 // start at region 0 (0 .. 7)
- and a6, a6, a5 // upper 3 bits of local PC area
- mov a7, a2 // copy a2 so it doesn't get clobbered
- j 3f
-
-# if XCHAL_HAVE_XLT_CACHEATTR
- // Can do translations, use generic method:
-1: sub a6, a3, a5 // address of some other segment
- ritlb1 a8, a6 // save its PPN+CA
- dsync // interlock??
- witlb a4, a6 // make it translate to this code area
- movi a6, 5f // where to jump into it
- isync
- sub a6, a6, a5 // adjust jump address within that other segment
- jx a6
-
- // Note that in the following code snippet, which runs at a different virtual
- // address than it is assembled for, we avoid using literals (eg. via movi/l32r)
- // just in case literals end up in a different 512 MB segment, and we avoid
- // instructions that rely on the current PC being what is expected.
- //
- .align 4
- _j 6f // this is at label '5' minus 4 bytes
- .align 4
-5: witlb a4, a3 // we're in other segment, now can write previous segment's CA
- isync
- add a6, a6, a5 // back to previous segment
- addi a6, a6, -4 // next jump label
- jx a6
-
-6: sub a6, a3, a5 // address of some other segment
- witlb a8, a6 // restore PPN+CA of other segment
- mov a6, a3 // restore a6
- isync
-# else /* XCHAL_HAVE_XLT_CACHEATTR */
- // Use micro-architecture specific method.
- // The following 4-instruction sequence is aligned such that
- // it all fits within a single I-cache line. Sixteen byte
- // alignment is sufficient for this (using XCHAL_ICACHE_LINESIZE
- // actually causes problems because that can be greater than
- // the alignment of the reset vector, where this macro is often
- // invoked, which would cause the linker to align the reset
- // vector code away from the reset vector!!).
- .align 16 /*XCHAL_ICACHE_LINESIZE*/
-1: _witlb a4, a3 // write wired PTE (CA, no PPN) of 512MB segment to ITLB
- _isync
- nop
- nop
-# endif /* XCHAL_HAVE_XLT_CACHEATTR */
- beq a3, a5, 4f // done?
-
- // Note that in the WITLB loop, we don't do any load/stores
- // (may not be an issue here, but it is important in the DTLB case).
-2: srli a7, a7, 4 // next CA
- sub a3, a3, a5 // next segment (add 0x20000000)
-3:
-# if XCHAL_HAVE_XLT_CACHEATTR /* if have translation, preserve it */
- ritlb1 a8, a3 // get current PPN+CA of segment
- dsync // interlock???
- extui a4, a7, 0, 4 // extract CA to set
- srli a8, a8, 4 // clear CA but keep PPN ...
- slli a8, a8, 4 // ...
- add a4, a4, a8 // combine new CA with PPN to preserve
-# else
- extui a4, a7, 0, 4 // extract CA
-# endif
- beq a3, a6, 1b // current PC's region? if so, do it in a safe way
- witlb a4, a3 // write wired PTE (CA [+PPN]) of 512MB segment to ITLB
- bne a3, a5, 2b
- isync // make sure all ifetch changes take effect
-4:
- .endm // icacheattr_set
-
-
-/*
- * dcacheattr_set
- *
- * Entry:
- * a2 cacheattr value to set
- * Exit:
- * a2 unchanged
- * a3-a8 clobbered (temporaries)
- */
-
- .macro dcacheattr_set
-
- movi a5, 0xE0000000 // mask of upper 3 bits
- movi a3, 0 // start at region 0 (0 .. 7)
- mov a7, a2 // copy a2 so it doesn't get clobbered
- j 3f
- // Note that in the WDTLB loop, we don't do any load/stores
- // (including implicit l32r via movi) because it isn't safe.
-2: srli a7, a7, 4 // next CA
- sub a3, a3, a5 // next segment (add 0x20000000)
-3:
-# if XCHAL_HAVE_XLT_CACHEATTR /* if have translation, preserve it */
- rdtlb1 a8, a3 // get current PPN+CA of segment
- dsync // interlock???
- extui a4, a7, 0, 4 // extract CA to set
- srli a8, a8, 4 // clear CA but keep PPN ...
- slli a8, a8, 4 // ...
- add a4, a4, a8 // combine new CA with PPN to preserve
-# else
- extui a4, a7, 0, 4 // extract CA to set
-# endif
- wdtlb a4, a3 // write wired PTE (CA [+PPN]) of 512MB segment to DTLB
- bne a3, a5, 2b
- dsync // make sure all data path changes take effect
- .endm // dcacheattr_set
-
-#endif /* XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR */
-
-
-
-/*
- * cacheattr_set
- *
- * Macro that sets the current CACHEATTR safely
- * (both i and d) according to the current contents of a2.
- * It works even when changing the cache attributes of
- * the currently running code.
- *
- * Entry:
- * a2 cacheattr value to set
- * Exit:
- * a2 unchanged
- * a3-a8 clobbered (temporaries)
- */
- .macro cacheattr_set
-
-#if XCHAL_HAVE_CACHEATTR
-# if XCHAL_ICACHE_LINESIZE < 4
- // No i-cache, so can always safely write to CACHEATTR:
- wsr a2, CACHEATTR
-# else
- // The Athens micro-architecture, when using the old
- // exception architecture option (ie. with the CACHEATTR register)
- // allows changing the cache attributes of the running code
- // using the following exact sequence aligned to be within
- // an instruction cache line. (NOTE: using XCHAL_ICACHE_LINESIZE
- // alignment actually causes problems because that can be greater
- // than the alignment of the reset vector, where this macro is often
- // invoked, which would cause the linker to align the reset
- // vector code away from the reset vector!!).
- j 1f
- .align 16 /*XCHAL_ICACHE_LINESIZE*/ // align to within an I-cache line
-1: _wsr a2, CACHEATTR
- _isync
- nop
- nop
-# endif
-#elif XCHAL_HAVE_MIMIC_CACHEATTR || XCHAL_HAVE_XLT_CACHEATTR
- // DTLB and ITLB are independent, but to keep semantics
- // of this macro we simply write to both.
- icacheattr_set
- dcacheattr_set
-#else
- // This macro isn't applicable to arbitrary MMU configurations.
- // Do nothing in this case.
-#endif
- .endm
-
-
-#endif /*XTENSA_CACHEATTRASM_H*/
-
+++ /dev/null
-/*
- * xtensa/config/core.h -- HAL definitions that are dependent on CORE configuration
- *
- * This header file is sometimes referred to as the "compile-time HAL" or CHAL.
- * It was generated for a specific Xtensa processor configuration.
- *
- * Source for configuration-independent binaries (which link in a
- * configuration-specific HAL library) must NEVER include this file.
- * It is perfectly normal, however, for the HAL source itself to include this file.
- */
-
-/*
- * Copyright (c) 2003 Tensilica, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2.1 of the GNU Lesser General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
- * USA.
- */
-
-
-#ifndef XTENSA_CONFIG_CORE_H
-#define XTENSA_CONFIG_CORE_H
-
-#include <xtensa/hal.h>
-
-
-/*----------------------------------------------------------------------
- GENERAL
- ----------------------------------------------------------------------*/
-
-/*
- * Separators for macros that expand into arrays.
- * These can be predefined by files that #include this one,
- * when different separators are required.
- */
-/* Element separator for macros that expand into 1-dimensional arrays: */
-#ifndef XCHAL_SEP
-#define XCHAL_SEP ,
-#endif
-/* Array separator for macros that expand into 2-dimensional arrays: */
-#ifndef XCHAL_SEP2
-#define XCHAL_SEP2 },{
-#endif
-
-
-/*----------------------------------------------------------------------
- ENDIANNESS
- ----------------------------------------------------------------------*/
-
-#define XCHAL_HAVE_BE 1
-#define XCHAL_HAVE_LE 0
-#define XCHAL_MEMORY_ORDER XTHAL_BIGENDIAN
-
-
-/*----------------------------------------------------------------------
- REGISTER WINDOWS
- ----------------------------------------------------------------------*/
-
-#define XCHAL_HAVE_WINDOWED 1 /* 1 if windowed registers option configured, 0 otherwise */
-#define XCHAL_NUM_AREGS 64 /* number of physical address regs */
-#define XCHAL_NUM_AREGS_LOG2 6 /* log2(XCHAL_NUM_AREGS) */
-
-
-/*----------------------------------------------------------------------
- ADDRESS ALIGNMENT
- ----------------------------------------------------------------------*/
-
-/* These apply to a selected set of core load and store instructions only (see ISA): */
-#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* 1 if unaligned loads cause an exception, 0 otherwise */
-#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* 1 if unaligned stores cause an exception, 0 otherwise */
-
-
-/*----------------------------------------------------------------------
- INTERRUPTS
- ----------------------------------------------------------------------*/
-
-#define XCHAL_HAVE_INTERRUPTS 1 /* 1 if interrupt option configured, 0 otherwise */
-#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* 1 if high-priority interrupt option configured, 0 otherwise */
-#define XCHAL_HAVE_HIGHLEVEL_INTERRUPTS XCHAL_HAVE_HIGHPRI_INTERRUPTS
-#define XCHAL_HAVE_NMI 0 /* 1 if NMI option configured, 0 otherwise */
-#define XCHAL_NUM_INTERRUPTS 17 /* number of interrupts */
-#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* number of bits to hold an interrupt number: roundup(log2(number of interrupts)) */
-#define XCHAL_NUM_EXTINTERRUPTS 10 /* number of external interrupts */
-#define XCHAL_NUM_INTLEVELS 4 /* number of interrupt levels (not including level zero!) */
-#define XCHAL_NUM_LOWPRI_LEVELS 1 /* number of low-priority interrupt levels (always 1) */
-#define XCHAL_FIRST_HIGHPRI_LEVEL (XCHAL_NUM_LOWPRI_LEVELS+1) /* level of first high-priority interrupt (always 2) */
-#define XCHAL_EXCM_LEVEL 1 /* level of interrupts masked by PS.EXCM (XEA2 only; always 1 in T10xx);
- for XEA1, where there is no PS.EXCM, this is always 1;
- interrupts at levels FIRST_HIGHPRI <= n <= EXCM_LEVEL, if any,
- are termed "medium priority" interrupts (post T10xx only) */
-/* Note: 1 <= LOWPRI_LEVELS <= EXCM_LEVEL < DEBUGLEVEL <= NUM_INTLEVELS < NMILEVEL <= 15 */
-
-/* Masks of interrupts at each interrupt level: */
-#define XCHAL_INTLEVEL0_MASK 0x00000000
-#define XCHAL_INTLEVEL1_MASK 0x000064F9
-#define XCHAL_INTLEVEL2_MASK 0x00008902
-#define XCHAL_INTLEVEL3_MASK 0x00011204
-#define XCHAL_INTLEVEL4_MASK 0x00000000
-#define XCHAL_INTLEVEL5_MASK 0x00000000
-#define XCHAL_INTLEVEL6_MASK 0x00000000
-#define XCHAL_INTLEVEL7_MASK 0x00000000
-#define XCHAL_INTLEVEL8_MASK 0x00000000
-#define XCHAL_INTLEVEL9_MASK 0x00000000
-#define XCHAL_INTLEVEL10_MASK 0x00000000
-#define XCHAL_INTLEVEL11_MASK 0x00000000
-#define XCHAL_INTLEVEL12_MASK 0x00000000
-#define XCHAL_INTLEVEL13_MASK 0x00000000
-#define XCHAL_INTLEVEL14_MASK 0x00000000
-#define XCHAL_INTLEVEL15_MASK 0x00000000
-/* As an array of entries (eg. for C constant arrays): */
-#define XCHAL_INTLEVEL_MASKS 0x00000000 XCHAL_SEP \
- 0x000064F9 XCHAL_SEP \
- 0x00008902 XCHAL_SEP \
- 0x00011204 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000 XCHAL_SEP \
- 0x00000000
-
-/* Masks of interrupts at each range 1..n of interrupt levels: */
-#define XCHAL_INTLEVEL0_ANDBELOW_MASK 0x00000000
-#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x000064F9
-#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x0000EDFB
-#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL8_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL9_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL10_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL11_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL12_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL13_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL14_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_INTLEVEL15_ANDBELOW_MASK 0x0001FFFF
-#define XCHAL_LOWPRI_MASK XCHAL_INTLEVEL1_ANDBELOW_MASK /* mask of all low-priority interrupts */
-#define XCHAL_EXCM_MASK XCHAL_INTLEVEL1_ANDBELOW_MASK /* mask of all interrupts masked by PS.EXCM (or CEXCM) */
-/* As an array of entries (eg. for C constant arrays): */
-#define XCHAL_INTLEVEL_ANDBELOW_MASKS 0x00000000 XCHAL_SEP \
- 0x000064F9 XCHAL_SEP \
- 0x0000EDFB XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF XCHAL_SEP \
- 0x0001FFFF
-
-/* Interrupt numbers for each interrupt level at which only one interrupt was configured: */
-/*#define XCHAL_INTLEVEL1_NUM ...more than one interrupt at this level...*/
-/*#define XCHAL_INTLEVEL2_NUM ...more than one interrupt at this level...*/
-/*#define XCHAL_INTLEVEL3_NUM ...more than one interrupt at this level...*/
-
-/* Level of each interrupt: */
-#define XCHAL_INT0_LEVEL 1
-#define XCHAL_INT1_LEVEL 2
-#define XCHAL_INT2_LEVEL 3
-#define XCHAL_INT3_LEVEL 1
-#define XCHAL_INT4_LEVEL 1
-#define XCHAL_INT5_LEVEL 1
-#define XCHAL_INT6_LEVEL 1
-#define XCHAL_INT7_LEVEL 1
-#define XCHAL_INT8_LEVEL 2
-#define XCHAL_INT9_LEVEL 3
-#define XCHAL_INT10_LEVEL 1
-#define XCHAL_INT11_LEVEL 2
-#define XCHAL_INT12_LEVEL 3
-#define XCHAL_INT13_LEVEL 1
-#define XCHAL_INT14_LEVEL 1
-#define XCHAL_INT15_LEVEL 2
-#define XCHAL_INT16_LEVEL 3
-#define XCHAL_INT17_LEVEL 0
-#define XCHAL_INT18_LEVEL 0
-#define XCHAL_INT19_LEVEL 0
-#define XCHAL_INT20_LEVEL 0
-#define XCHAL_INT21_LEVEL 0
-#define XCHAL_INT22_LEVEL 0
-#define XCHAL_INT23_LEVEL 0
-#define XCHAL_INT24_LEVEL 0
-#define XCHAL_INT25_LEVEL 0
-#define XCHAL_INT26_LEVEL 0
-#define XCHAL_INT27_LEVEL 0
-#define XCHAL_INT28_LEVEL 0
-#define XCHAL_INT29_LEVEL 0
-#define XCHAL_INT30_LEVEL 0
-#define XCHAL_INT31_LEVEL 0
-/* As an array of entries (eg. for C constant arrays): */
-#define XCHAL_INT_LEVELS 1 XCHAL_SEP \
- 2 XCHAL_SEP \
- 3 XCHAL_SEP \
- 1 XCHAL_SEP \
- 1 XCHAL_SEP \
- 1 XCHAL_SEP \
- 1 XCHAL_SEP \
- 1 XCHAL_SEP \
- 2 XCHAL_SEP \
- 3 XCHAL_SEP \
- 1 XCHAL_SEP \
- 2 XCHAL_SEP \
- 3 XCHAL_SEP \
- 1 XCHAL_SEP \
- 1 XCHAL_SEP \
- 2 XCHAL_SEP \
- 3 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0 XCHAL_SEP \
- 0
-
-/* Type of each interrupt: */
-#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
-#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
-#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
-#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
-#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
-#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
-#define XCHAL_INT6_TYPE XTHAL_INTTYPE_EXTERN_LEVEL
-#define XCHAL_INT7_TYPE XTHAL_INTTYPE_EXTERN_EDGE
-#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_EDGE
-#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_EDGE
-#define XCHAL_INT10_TYPE XTHAL_INTTYPE_TIMER
-#define XCHAL_INT11_TYPE XTHAL_INTTYPE_TIMER
-#define XCHAL_INT12_TYPE XTHAL_INTTYPE_TIMER
-#define XCHAL_INT13_TYPE XTHAL_INTTYPE_SOFTWARE
-#define XCHAL_INT14_TYPE XTHAL_INTTYPE_SOFTWARE
-#define XCHAL_INT15_TYPE XTHAL_INTTYPE_SOFTWARE
-#define XCHAL_INT16_TYPE XTHAL_INTTYPE_SOFTWARE
-#define XCHAL_INT17_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT18_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT19_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT20_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT21_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT22_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT23_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT24_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT25_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT26_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT27_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT28_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT29_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT30_TYPE XTHAL_INTTYPE_UNCONFIGURED
-#define XCHAL_INT31_TYPE XTHAL_INTTYPE_UNCONFIGURED
-/* As an array of entries (eg. for C constant arrays): */
-#define XCHAL_INT_TYPES XTHAL_INTTYPE_EXTERN_LEVEL XCHAL_SEP \
- XTHAL_INTTYPE_EXTERN_LEVEL XCHAL_SEP \
- XTHAL_INTTYPE_EXTERN_LEVEL XCHAL_SEP \
- XTHAL_INTTYPE_EXTERN_LEVEL XCHAL_SEP \
- XTHAL_INTTYPE_EXTERN_LEVEL XCHAL_SEP \
- XTHAL_INTTYPE_EXTERN_LEVEL XCHAL_SEP \
- XTHAL_INTTYPE_EXTERN_LEVEL XCHAL_SEP \
- XTHAL_INTTYPE_EXTERN_EDGE XCHAL_SEP \
- XTHAL_INTTYPE_EXTERN_EDGE XCHAL_SEP \
- XTHAL_INTTYPE_EXTERN_EDGE XCHAL_SEP \
- XTHAL_INTTYPE_TIMER XCHAL_SEP \
- XTHAL_INTTYPE_TIMER XCHAL_SEP \
- XTHAL_INTTYPE_TIMER XCHAL_SEP \
- XTHAL_INTTYPE_SOFTWARE XCHAL_SEP \
- XTHAL_INTTYPE_SOFTWARE XCHAL_SEP \
- XTHAL_INTTYPE_SOFTWARE XCHAL_SEP \
- XTHAL_INTTYPE_SOFTWARE XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED XCHAL_SEP \
- XTHAL_INTTYPE_UNCONFIGURED
-
-/* Masks of interrupts for each type of interrupt: */
-#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFFE0000
-#define XCHAL_INTTYPE_MASK_SOFTWARE 0x0001E000
-#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x00000380
-#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000007F
-#define XCHAL_INTTYPE_MASK_TIMER 0x00001C00
-#define XCHAL_INTTYPE_MASK_NMI 0x00000000
-/* As an array of entries (eg. for C constant arrays): */
-#define XCHAL_INTTYPE_MASKS 0xFFFE0000 XCHAL_SEP \
- 0x0001E000 XCHAL_SEP \
- 0x00000380 XCHAL_SEP \
- 0x0000007F XCHAL_SEP \
- 0x00001C00 XCHAL_SEP \
- 0x00000000
-
-/* Interrupts assigned to each timer (CCOMPARE0 to CCOMPARE3), -1 if unassigned */
-#define XCHAL_TIMER0_INTERRUPT 10
-#define XCHAL_TIMER1_INTERRUPT 11
-#define XCHAL_TIMER2_INTERRUPT 12
-#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED
-/* As an array of entries (eg. for C constant arrays): */
-#define XCHAL_TIMER_INTERRUPTS 10 XCHAL_SEP \
- 11 XCHAL_SEP \
- 12 XCHAL_SEP \
- XTHAL_TIMER_UNCONFIGURED
-
-/* Indexing macros: */
-#define _XCHAL_INTLEVEL_MASK(n) XCHAL_INTLEVEL ## n ## _MASK
-#define XCHAL_INTLEVEL_MASK(n) _XCHAL_INTLEVEL_MASK(n) /* n = 0 .. 15 */
-#define _XCHAL_INTLEVEL_ANDBELOWMASK(n) XCHAL_INTLEVEL ## n ## _ANDBELOW_MASK
-#define XCHAL_INTLEVEL_ANDBELOW_MASK(n) _XCHAL_INTLEVEL_ANDBELOWMASK(n) /* n = 0 .. 15 */
-#define _XCHAL_INT_LEVEL(n) XCHAL_INT ## n ## _LEVEL
-#define XCHAL_INT_LEVEL(n) _XCHAL_INT_LEVEL(n) /* n = 0 .. 31 */
-#define _XCHAL_INT_TYPE(n) XCHAL_INT ## n ## _TYPE
-#define XCHAL_INT_TYPE(n) _XCHAL_INT_TYPE(n) /* n = 0 .. 31 */
-#define _XCHAL_TIMER_INTERRUPT(n) XCHAL_TIMER ## n ## _INTERRUPT
-#define XCHAL_TIMER_INTERRUPT(n) _XCHAL_TIMER_INTERRUPT(n) /* n = 0 .. 3 */
-
-
-
-/*
- * External interrupt vectors/levels.
- * These macros describe how Xtensa processor interrupt numbers
- * (as numbered internally, eg. in INTERRUPT and INTENABLE registers)
- * map to external BInterrupt<n> pins, for those interrupts
- * configured as external (level-triggered, edge-triggered, or NMI).
- * See the Xtensa processor databook for more details.
- */
-
-/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */
-#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */
-#define XCHAL_EXTINT1_NUM 1 /* (intlevel 2) */
-#define XCHAL_EXTINT2_NUM 2 /* (intlevel 3) */
-#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */
-#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */
-#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */
-#define XCHAL_EXTINT6_NUM 6 /* (intlevel 1) */
-#define XCHAL_EXTINT7_NUM 7 /* (intlevel 1) */
-#define XCHAL_EXTINT8_NUM 8 /* (intlevel 2) */
-#define XCHAL_EXTINT9_NUM 9 /* (intlevel 3) */
-
-/* Corresponding interrupt masks: */
-#define XCHAL_EXTINT0_MASK 0x00000001
-#define XCHAL_EXTINT1_MASK 0x00000002
-#define XCHAL_EXTINT2_MASK 0x00000004
-#define XCHAL_EXTINT3_MASK 0x00000008
-#define XCHAL_EXTINT4_MASK 0x00000010
-#define XCHAL_EXTINT5_MASK 0x00000020
-#define XCHAL_EXTINT6_MASK 0x00000040
-#define XCHAL_EXTINT7_MASK 0x00000080
-#define XCHAL_EXTINT8_MASK 0x00000100
-#define XCHAL_EXTINT9_MASK 0x00000200
-
-/* Core config interrupt levels mapped to each external interrupt: */
-#define XCHAL_EXTINT0_LEVEL 1 /* (int number 0) */
-#define XCHAL_EXTINT1_LEVEL 2 /* (int number 1) */
-#define XCHAL_EXTINT2_LEVEL 3 /* (int number 2) */
-#define XCHAL_EXTINT3_LEVEL 1 /* (int number 3) */
-#define XCHAL_EXTINT4_LEVEL 1 /* (int number 4) */
-#define XCHAL_EXTINT5_LEVEL 1 /* (int number 5) */
-#define XCHAL_EXTINT6_LEVEL 1 /* (int number 6) */
-#define XCHAL_EXTINT7_LEVEL 1 /* (int number 7) */
-#define XCHAL_EXTINT8_LEVEL 2 /* (int number 8) */
-#define XCHAL_EXTINT9_LEVEL 3 /* (int number 9) */
-
-
-/*----------------------------------------------------------------------
- EXCEPTIONS and VECTORS
- ----------------------------------------------------------------------*/
-
-#define XCHAL_HAVE_EXCEPTIONS 1 /* 1 if exception option configured, 0 otherwise */
-
-#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture number: 1 for XEA1 (old), 2 for XEA2 (new) */
-#define XCHAL_HAVE_XEA1 0 /* 1 if XEA1, 0 otherwise */
-#define XCHAL_HAVE_XEA2 1 /* 1 if XEA2, 0 otherwise */
-/* For backward compatibility ONLY -- DO NOT USE (will be removed in future release): */
-#define XCHAL_HAVE_OLD_EXC_ARCH XCHAL_HAVE_XEA1 /* (DEPRECATED) 1 if old exception architecture (XEA1), 0 otherwise (eg. XEA2) */
-#define XCHAL_HAVE_EXCM XCHAL_HAVE_XEA2 /* (DEPRECATED) 1 if PS.EXCM bit exists (currently equals XCHAL_HAVE_TLBS) */
-
-#define XCHAL_RESET_VECTOR_VADDR 0xFE000020
-#define XCHAL_RESET_VECTOR_PADDR 0xFE000020
-#define XCHAL_USER_VECTOR_VADDR 0xD0000220
-#define XCHAL_PROGRAMEXC_VECTOR_VADDR XCHAL_USER_VECTOR_VADDR /* for backward compatibility */
-#define XCHAL_USEREXC_VECTOR_VADDR XCHAL_USER_VECTOR_VADDR /* for backward compatibility */
-#define XCHAL_USER_VECTOR_PADDR 0x00000220
-#define XCHAL_PROGRAMEXC_VECTOR_PADDR XCHAL_USER_VECTOR_PADDR /* for backward compatibility */
-#define XCHAL_USEREXC_VECTOR_PADDR XCHAL_USER_VECTOR_PADDR /* for backward compatibility */
-#define XCHAL_KERNEL_VECTOR_VADDR 0xD0000200
-#define XCHAL_STACKEDEXC_VECTOR_VADDR XCHAL_KERNEL_VECTOR_VADDR /* for backward compatibility */
-#define XCHAL_KERNELEXC_VECTOR_VADDR XCHAL_KERNEL_VECTOR_VADDR /* for backward compatibility */
-#define XCHAL_KERNEL_VECTOR_PADDR 0x00000200
-#define XCHAL_STACKEDEXC_VECTOR_PADDR XCHAL_KERNEL_VECTOR_PADDR /* for backward compatibility */
-#define XCHAL_KERNELEXC_VECTOR_PADDR XCHAL_KERNEL_VECTOR_PADDR /* for backward compatibility */
-#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0xD0000290
-#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x00000290
-#define XCHAL_WINDOW_VECTORS_VADDR 0xD0000000
-#define XCHAL_WINDOW_VECTORS_PADDR 0x00000000
-#define XCHAL_INTLEVEL2_VECTOR_VADDR 0xD0000240
-#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x00000240
-#define XCHAL_INTLEVEL3_VECTOR_VADDR 0xD0000250
-#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x00000250
-#define XCHAL_INTLEVEL4_VECTOR_VADDR 0xFE000520
-#define XCHAL_INTLEVEL4_VECTOR_PADDR 0xFE000520
-#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL4_VECTOR_VADDR
-#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL4_VECTOR_PADDR
-
-/* Indexing macros: */
-#define _XCHAL_INTLEVEL_VECTOR_VADDR(n) XCHAL_INTLEVEL ## n ## _VECTOR_VADDR
-#define XCHAL_INTLEVEL_VECTOR_VADDR(n) _XCHAL_INTLEVEL_VECTOR_VADDR(n) /* n = 0 .. 15 */
-
-/*
- * General Exception Causes
- * (values of EXCCAUSE special register set by general exceptions,
- * which vector to the user, kernel, or double-exception vectors):
- */
-#define XCHAL_EXCCAUSE_ILLEGAL_INSTRUCTION 0 /* Illegal Instruction (IllegalInstruction) */
-#define XCHAL_EXCCAUSE_SYSTEM_CALL 1 /* System Call (SystemCall) */
-#define XCHAL_EXCCAUSE_INSTRUCTION_FETCH_ERROR 2 /* Instruction Fetch Error (InstructionFetchError) */
-#define XCHAL_EXCCAUSE_LOAD_STORE_ERROR 3 /* Load Store Error (LoadStoreError) */
-#define XCHAL_EXCCAUSE_LEVEL1_INTERRUPT 4 /* Level 1 Interrupt (Level1Interrupt) */
-#define XCHAL_EXCCAUSE_ALLOCA 5 /* Stack Extension Assist (Alloca) */
-#define XCHAL_EXCCAUSE_INTEGER_DIVIDE_BY_ZERO 6 /* Integer Divide by Zero (IntegerDivideByZero) */
-#define XCHAL_EXCCAUSE_SPECULATION 7 /* Speculation (Speculation) */
-#define XCHAL_EXCCAUSE_PRIVILEGED 8 /* Privileged Instruction (Privileged) */
-#define XCHAL_EXCCAUSE_UNALIGNED 9 /* Unaligned Load Store (Unaligned) */
-#define XCHAL_EXCCAUSE_ITLB_MISS 16 /* ITlb Miss Exception (ITlbMiss) */
-#define XCHAL_EXCCAUSE_ITLB_MULTIHIT 17 /* ITlb Mutltihit Exception (ITlbMultihit) */
-#define XCHAL_EXCCAUSE_ITLB_PRIVILEGE 18 /* ITlb Privilege Exception (ITlbPrivilege) */
-#define XCHAL_EXCCAUSE_ITLB_SIZE_RESTRICTION 19 /* ITlb Size Restriction Exception (ITlbSizeRestriction) */
-#define XCHAL_EXCCAUSE_FETCH_CACHE_ATTRIBUTE 20 /* Fetch Cache Attribute Exception (FetchCacheAttribute) */
-#define XCHAL_EXCCAUSE_DTLB_MISS 24 /* DTlb Miss Exception (DTlbMiss) */
-#define XCHAL_EXCCAUSE_DTLB_MULTIHIT 25 /* DTlb Multihit Exception (DTlbMultihit) */
-#define XCHAL_EXCCAUSE_DTLB_PRIVILEGE 26 /* DTlb Privilege Exception (DTlbPrivilege) */
-#define XCHAL_EXCCAUSE_DTLB_SIZE_RESTRICTION 27 /* DTlb Size Restriction Exception (DTlbSizeRestriction) */
-#define XCHAL_EXCCAUSE_LOAD_CACHE_ATTRIBUTE 28 /* Load Cache Attribute Exception (LoadCacheAttribute) */
-#define XCHAL_EXCCAUSE_STORE_CACHE_ATTRIBUTE 29 /* Store Cache Attribute Exception (StoreCacheAttribute) */
-#define XCHAL_EXCCAUSE_FLOATING_POINT 40 /* Floating Point Exception (FloatingPoint) */
-
-
-
-/*----------------------------------------------------------------------
- TIMERS
- ----------------------------------------------------------------------*/
-
-#define XCHAL_HAVE_CCOUNT 1 /* 1 if have CCOUNT, 0 otherwise */
-/*#define XCHAL_HAVE_TIMERS XCHAL_HAVE_CCOUNT*/
-#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */
-
-
-
-/*----------------------------------------------------------------------
- DEBUG
- ----------------------------------------------------------------------*/
-
-#define XCHAL_HAVE_DEBUG 1 /* 1 if debug option configured, 0 otherwise */
-#define XCHAL_HAVE_OCD 1 /* 1 if OnChipDebug option configured, 0 otherwise */
-#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */
-#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */
-#define XCHAL_DEBUGLEVEL 4 /* debug interrupt level */
-/*DebugExternalInterrupt 0 0|1*/
-/*DebugUseDIRArray 0 0|1*/
-
-
-
-
-/*----------------------------------------------------------------------
- COPROCESSORS and EXTRA STATE
- ----------------------------------------------------------------------*/
-
-#define XCHAL_HAVE_CP 0 /* 1 if coprocessor option configured (CPENABLE present) */
-#define XCHAL_CP_MAXCFG 0 /* max allowed cp id plus one (per cfg) */
-
-#include <xtensa/config/tie.h>
-
-
-
-
-/*----------------------------------------------------------------------
- INTERNAL I/D RAM/ROMs and XLMI
- ----------------------------------------------------------------------*/
-
-#define XCHAL_NUM_INSTROM 0 /* number of core instruction ROMs configured */
-#define XCHAL_NUM_INSTRAM 0 /* number of core instruction RAMs configured */
-#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs configured */
-#define XCHAL_NUM_DATARAM 0 /* number of core data RAMs configured */
-#define XCHAL_NUM_XLMI 0 /* number of core XLMI ports configured */
-#define XCHAL_NUM_IROM XCHAL_NUM_INSTROM /* (DEPRECATED) */
-#define XCHAL_NUM_IRAM XCHAL_NUM_INSTRAM /* (DEPRECATED) */
-#define XCHAL_NUM_DROM XCHAL_NUM_DATAROM /* (DEPRECATED) */
-#define XCHAL_NUM_DRAM XCHAL_NUM_DATARAM /* (DEPRECATED) */
-
-
-
-/*----------------------------------------------------------------------
- CACHE
- ----------------------------------------------------------------------*/
-
-/* Size of the cache lines in log2(bytes): */
-#define XCHAL_ICACHE_LINEWIDTH 4
-#define XCHAL_DCACHE_LINEWIDTH 4
-/* Size of the cache lines in bytes: */
-#define XCHAL_ICACHE_LINESIZE 16
-#define XCHAL_DCACHE_LINESIZE 16
-/* Max for both I-cache and D-cache (used for general alignment): */
-#define XCHAL_CACHE_LINEWIDTH_MAX 4
-#define XCHAL_CACHE_LINESIZE_MAX 16
-
-/* Number of cache sets in log2(lines per way): */
-#define XCHAL_ICACHE_SETWIDTH 8
-#define XCHAL_DCACHE_SETWIDTH 8
-/* Max for both I-cache and D-cache (used for general cache-coherency page alignment): */
-#define XCHAL_CACHE_SETWIDTH_MAX 8
-#define XCHAL_CACHE_SETSIZE_MAX 256
-
-/* Cache set associativity (number of ways): */
-#define XCHAL_ICACHE_WAYS 2
-#define XCHAL_DCACHE_WAYS 2
-
-/* Size of the caches in bytes (ways * 2^(linewidth + setwidth)): */
-#define XCHAL_ICACHE_SIZE 8192
-#define XCHAL_DCACHE_SIZE 8192
-
-/* Cache features: */
-#define XCHAL_DCACHE_IS_WRITEBACK 0
-/* Whether cache locking feature is available: */
-#define XCHAL_ICACHE_LINE_LOCKABLE 0
-#define XCHAL_DCACHE_LINE_LOCKABLE 0
-
-/* Number of (encoded) cache attribute bits: */
-#define XCHAL_CA_BITS 4 /* number of bits needed to hold cache attribute encoding */
-/* (The number of access mode bits (decoded cache attribute bits) is defined by the architecture; see xtensa/hal.h?) */
-
-
-/* Cache Attribute encodings -- lists of access modes for each cache attribute: */
-#define XCHAL_FCA_LIST XTHAL_FAM_EXCEPTION XCHAL_SEP \
- XTHAL_FAM_BYPASS XCHAL_SEP \
- XTHAL_FAM_EXCEPTION XCHAL_SEP \
- XTHAL_FAM_BYPASS XCHAL_SEP \
- XTHAL_FAM_EXCEPTION XCHAL_SEP \
- XTHAL_FAM_CACHED XCHAL_SEP \
- XTHAL_FAM_EXCEPTION XCHAL_SEP \
- XTHAL_FAM_CACHED XCHAL_SEP \
- XTHAL_FAM_EXCEPTION XCHAL_SEP \
- XTHAL_FAM_CACHED XCHAL_SEP \
- XTHAL_FAM_EXCEPTION XCHAL_SEP \
- XTHAL_FAM_CACHED XCHAL_SEP \
- XTHAL_FAM_EXCEPTION XCHAL_SEP \
- XTHAL_FAM_EXCEPTION XCHAL_SEP \
- XTHAL_FAM_EXCEPTION XCHAL_SEP \
- XTHAL_FAM_EXCEPTION
-#define XCHAL_LCA_LIST XTHAL_LAM_EXCEPTION XCHAL_SEP \
- XTHAL_LAM_BYPASSG XCHAL_SEP \
- XTHAL_LAM_EXCEPTION XCHAL_SEP \
- XTHAL_LAM_BYPASSG XCHAL_SEP \
- XTHAL_LAM_EXCEPTION XCHAL_SEP \
- XTHAL_LAM_CACHED XCHAL_SEP \
- XTHAL_LAM_EXCEPTION XCHAL_SEP \
- XTHAL_LAM_CACHED XCHAL_SEP \
- XTHAL_LAM_EXCEPTION XCHAL_SEP \
- XTHAL_LAM_NACACHED XCHAL_SEP \
- XTHAL_LAM_EXCEPTION XCHAL_SEP \
- XTHAL_LAM_NACACHED XCHAL_SEP \
- XTHAL_LAM_EXCEPTION XCHAL_SEP \
- XTHAL_LAM_ISOLATE XCHAL_SEP \
- XTHAL_LAM_EXCEPTION XCHAL_SEP \
- XTHAL_LAM_CACHED
-#define XCHAL_SCA_LIST XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_BYPASS XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_WRITETHRU XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_WRITETHRU XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_ISOLATE XCHAL_SEP \
- XTHAL_SAM_EXCEPTION XCHAL_SEP \
- XTHAL_SAM_WRITETHRU
-
-/* Test:
- read/only: 0 + 1 + 2 + 4 + 5 + 6 + 8 + 9 + 10 + 12 + 14
- read/only: 0 + 1 + 2 + 4 + 5 + 6 + 8 + 9 + 10 + 12 + 14
- all: 0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15
- fault: 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14
- r/w/x cached:
- r/w/x dcached:
- I-bypass: 1 + 3
-
- load guard bit set: 1 + 3
- load guard bit clr: 0 + 2 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15
- hit-cache r/w/x: 7 + 11
-
- fams: 5
- fams: 0 / 6 / 18 / 1 / 2
- fams: Bypass / Isolate / Cached / Exception / NACached
-
- MMU okay: yes
-*/
-
-
-/*----------------------------------------------------------------------
- MMU
- ----------------------------------------------------------------------*/
-
-/*
- * General notes on MMU parameters.
- *
- * Terminology:
- * ASID = address-space ID (acts as an "extension" of virtual addresses)
- * VPN = virtual page number
- * PPN = physical page number
- * CA = encoded cache attribute (access modes)
- * TLB = translation look-aside buffer (term is stretched somewhat here)
- * I = instruction (fetch accesses)
- * D = data (load and store accesses)
- * way = each TLB (ITLB and DTLB) consists of a number of "ways"
- * that simultaneously match the virtual address of an access;
- * a TLB successfully translates a virtual address if exactly
- * one way matches the vaddr; if none match, it is a miss;
- * if multiple match, one gets a "multihit" exception;
- * each way can be independently configured in terms of number of
- * entries, page sizes, which fields are writable or constant, etc.
- * set = group of contiguous ways with exactly identical parameters
- * ARF = auto-refill; hardware services a 1st-level miss by loading a PTE
- * from the page table and storing it in one of the auto-refill ways;
- * if this PTE load also misses, a miss exception is posted for s/w.
- * min-wired = a "min-wired" way can be used to map a single (minimum-sized)
- * page arbitrarily under program control; it has a single entry,
- * is non-auto-refill (some other way(s) must be auto-refill),
- * all its fields (VPN, PPN, ASID, CA) are all writable, and it
- * supports the XCHAL_MMU_MIN_PTE_PAGE_SIZE page size (a current
- * restriction is that this be the only page size it supports).
- *
- * TLB way entries are virtually indexed.
- * TLB ways that support multiple page sizes:
- * - must have all writable VPN and PPN fields;
- * - can only use one page size at any given time (eg. setup at startup),
- * selected by the respective ITLBCFG or DTLBCFG special register,
- * whose bits n*4+3 .. n*4 index the list of page sizes for way n
- * (XCHAL_xTLB_SETm_PAGESZ_LOG2_LIST for set m corresponding to way n);
- * this list may be sparse for auto-refill ways because auto-refill
- * ways have independent lists of supported page sizes sharing a
- * common encoding with PTE entries; the encoding is the index into
- * this list; unsupported sizes for a given way are zero in the list;
- * selecting unsupported sizes results in undefined hardware behaviour;
- * - is only possible for ways 0 thru 7 (due to ITLBCFG/DTLBCFG definition).
- */
-
-#define XCHAL_HAVE_CACHEATTR 0 /* 1 if CACHEATTR register present, 0 if TLBs present instead */
-#define XCHAL_HAVE_TLBS 1 /* 1 if TLBs present, 0 if CACHEATTR present instead */
-#define XCHAL_HAVE_MMU XCHAL_HAVE_TLBS /* (DEPRECATED; use XCHAL_HAVE_TLBS instead; will be removed in future release) */
-#define XCHAL_HAVE_SPANNING_WAY 0 /* 1 if single way maps entire virtual address space in I+D */
-#define XCHAL_HAVE_IDENTITY_MAP 0 /* 1 if virtual addr == physical addr always, 0 otherwise */
-#define XCHAL_HAVE_MIMIC_CACHEATTR 0 /* 1 if have MMU that mimics a CACHEATTR config (CaMMU) */
-#define XCHAL_HAVE_XLT_CACHEATTR 0 /* 1 if have MMU that mimics a CACHEATTR config, but with translation (CaXltMMU) */
-
-#define XCHAL_MMU_ASID_BITS 8 /* number of bits in ASIDs (address space IDs) */
-#define XCHAL_MMU_ASID_INVALID 0 /* ASID value indicating invalid address space */
-#define XCHAL_MMU_ASID_KERNEL 1 /* ASID value indicating kernel (ring 0) address space */
-#define XCHAL_MMU_RINGS 4 /* number of rings supported (1..4) */
-#define XCHAL_MMU_RING_BITS 2 /* number of bits needed to hold ring number */
-#define XCHAL_MMU_SR_BITS 0 /* number of size-restriction bits supported */
-#define XCHAL_MMU_CA_BITS 4 /* number of bits needed to hold cache attribute encoding */
-#define XCHAL_MMU_MAX_PTE_PAGE_SIZE 12 /* max page size in a PTE structure (log2) */
-#define XCHAL_MMU_MIN_PTE_PAGE_SIZE 12 /* min page size in a PTE structure (log2) */
-
-
-/*** Instruction TLB: ***/
-
-#define XCHAL_ITLB_WAY_BITS 3 /* number of bits holding the ways */
-#define XCHAL_ITLB_WAYS 7 /* number of ways (n-way set-associative TLB) */
-#define XCHAL_ITLB_ARF_WAYS 4 /* number of auto-refill ways */
-#define XCHAL_ITLB_SETS 4 /* number of sets (groups of ways with identical settings) */
-
-/* Way set to which each way belongs: */
-#define XCHAL_ITLB_WAY0_SET 0
-#define XCHAL_ITLB_WAY1_SET 0
-#define XCHAL_ITLB_WAY2_SET 0
-#define XCHAL_ITLB_WAY3_SET 0
-#define XCHAL_ITLB_WAY4_SET 1
-#define XCHAL_ITLB_WAY5_SET 2
-#define XCHAL_ITLB_WAY6_SET 3
-
-/* Ways sets that are used by hardware auto-refill (ARF): */
-#define XCHAL_ITLB_ARF_SETS 1 /* number of auto-refill sets */
-#define XCHAL_ITLB_ARF_SET0 0 /* index of n'th auto-refill set */
-
-/* Way sets that are "min-wired" (see terminology comment above): */
-#define XCHAL_ITLB_MINWIRED_SETS 0 /* number of "min-wired" sets */
-
-
-/* ITLB way set 0 (group of ways 0 thru 3): */
-#define XCHAL_ITLB_SET0_WAY 0 /* index of first way in this way set */
-#define XCHAL_ITLB_SET0_WAYS 4 /* number of (contiguous) ways in this way set */
-#define XCHAL_ITLB_SET0_ENTRIES_LOG2 2 /* log2(number of entries in this way) */
-#define XCHAL_ITLB_SET0_ENTRIES 4 /* number of entries in this way (always a power of 2) */
-#define XCHAL_ITLB_SET0_ARF 1 /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
-#define XCHAL_ITLB_SET0_PAGESIZES 1 /* number of supported page sizes in this way */
-#define XCHAL_ITLB_SET0_PAGESZ_BITS 0 /* number of bits to encode the page size */
-#define XCHAL_ITLB_SET0_PAGESZ_LOG2_MIN 12 /* log2(minimum supported page size) */
-#define XCHAL_ITLB_SET0_PAGESZ_LOG2_MAX 12 /* log2(maximum supported page size) */
-#define XCHAL_ITLB_SET0_PAGESZ_LOG2_LIST 12 /* list of log2(page size)s, separated by XCHAL_SEP;
- 2^PAGESZ_BITS entries in list, unsupported entries are zero */
-#define XCHAL_ITLB_SET0_ASID_CONSTMASK 0 /* constant ASID bits; 0 if all writable */
-#define XCHAL_ITLB_SET0_VPN_CONSTMASK 0 /* constant VPN bits, not including entry index bits; 0 if all writable */
-#define XCHAL_ITLB_SET0_PPN_CONSTMASK 0 /* constant PPN bits, including entry index bits; 0 if all writable */
-#define XCHAL_ITLB_SET0_CA_CONSTMASK 0 /* constant CA bits; 0 if all writable */
-#define XCHAL_ITLB_SET0_ASID_RESET 0 /* 1 if ASID reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET0_VPN_RESET 0 /* 1 if VPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET0_PPN_RESET 0 /* 1 if PPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET0_CA_RESET 0 /* 1 if CA reset values defined (and all writable); 0 otherwise */
-
-/* ITLB way set 1 (group of ways 4 thru 4): */
-#define XCHAL_ITLB_SET1_WAY 4 /* index of first way in this way set */
-#define XCHAL_ITLB_SET1_WAYS 1 /* number of (contiguous) ways in this way set */
-#define XCHAL_ITLB_SET1_ENTRIES_LOG2 2 /* log2(number of entries in this way) */
-#define XCHAL_ITLB_SET1_ENTRIES 4 /* number of entries in this way (always a power of 2) */
-#define XCHAL_ITLB_SET1_ARF 0 /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
-#define XCHAL_ITLB_SET1_PAGESIZES 4 /* number of supported page sizes in this way */
-#define XCHAL_ITLB_SET1_PAGESZ_BITS 2 /* number of bits to encode the page size */
-#define XCHAL_ITLB_SET1_PAGESZ_LOG2_MIN 20 /* log2(minimum supported page size) */
-#define XCHAL_ITLB_SET1_PAGESZ_LOG2_MAX 26 /* log2(maximum supported page size) */
-#define XCHAL_ITLB_SET1_PAGESZ_LOG2_LIST 20 XCHAL_SEP 22 XCHAL_SEP 24 XCHAL_SEP 26 /* list of log2(page size)s, separated by XCHAL_SEP;
- 2^PAGESZ_BITS entries in list, unsupported entries are zero */
-#define XCHAL_ITLB_SET1_ASID_CONSTMASK 0 /* constant ASID bits; 0 if all writable */
-#define XCHAL_ITLB_SET1_VPN_CONSTMASK 0 /* constant VPN bits, not including entry index bits; 0 if all writable */
-#define XCHAL_ITLB_SET1_PPN_CONSTMASK 0 /* constant PPN bits, including entry index bits; 0 if all writable */
-#define XCHAL_ITLB_SET1_CA_CONSTMASK 0 /* constant CA bits; 0 if all writable */
-#define XCHAL_ITLB_SET1_ASID_RESET 0 /* 1 if ASID reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET1_VPN_RESET 0 /* 1 if VPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET1_PPN_RESET 0 /* 1 if PPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET1_CA_RESET 0 /* 1 if CA reset values defined (and all writable); 0 otherwise */
-
-/* ITLB way set 2 (group of ways 5 thru 5): */
-#define XCHAL_ITLB_SET2_WAY 5 /* index of first way in this way set */
-#define XCHAL_ITLB_SET2_WAYS 1 /* number of (contiguous) ways in this way set */
-#define XCHAL_ITLB_SET2_ENTRIES_LOG2 1 /* log2(number of entries in this way) */
-#define XCHAL_ITLB_SET2_ENTRIES 2 /* number of entries in this way (always a power of 2) */
-#define XCHAL_ITLB_SET2_ARF 0 /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
-#define XCHAL_ITLB_SET2_PAGESIZES 1 /* number of supported page sizes in this way */
-#define XCHAL_ITLB_SET2_PAGESZ_BITS 0 /* number of bits to encode the page size */
-#define XCHAL_ITLB_SET2_PAGESZ_LOG2_MIN 27 /* log2(minimum supported page size) */
-#define XCHAL_ITLB_SET2_PAGESZ_LOG2_MAX 27 /* log2(maximum supported page size) */
-#define XCHAL_ITLB_SET2_PAGESZ_LOG2_LIST 27 /* list of log2(page size)s, separated by XCHAL_SEP;
- 2^PAGESZ_BITS entries in list, unsupported entries are zero */
-#define XCHAL_ITLB_SET2_ASID_CONSTMASK 0xFF /* constant ASID bits; 0 if all writable */
-#define XCHAL_ITLB_SET2_VPN_CONSTMASK 0xF0000000 /* constant VPN bits, not including entry index bits; 0 if all writable */
-#define XCHAL_ITLB_SET2_PPN_CONSTMASK 0xF8000000 /* constant PPN bits, including entry index bits; 0 if all writable */
-#define XCHAL_ITLB_SET2_CA_CONSTMASK 0x0000000F /* constant CA bits; 0 if all writable */
-#define XCHAL_ITLB_SET2_ASID_RESET 0 /* 1 if ASID reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET2_VPN_RESET 0 /* 1 if VPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET2_PPN_RESET 0 /* 1 if PPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET2_CA_RESET 0 /* 1 if CA reset values defined (and all writable); 0 otherwise */
-/* Constant ASID values for each entry of ITLB way set 2 (because ASID_CONSTMASK is non-zero): */
-#define XCHAL_ITLB_SET2_E0_ASID_CONST 0x01
-#define XCHAL_ITLB_SET2_E1_ASID_CONST 0x01
-/* Constant VPN values for each entry of ITLB way set 2 (because VPN_CONSTMASK is non-zero): */
-#define XCHAL_ITLB_SET2_E0_VPN_CONST 0xD0000000
-#define XCHAL_ITLB_SET2_E1_VPN_CONST 0xD8000000
-/* Constant PPN values for each entry of ITLB way set 2 (because PPN_CONSTMASK is non-zero): */
-#define XCHAL_ITLB_SET2_E0_PPN_CONST 0x00000000
-#define XCHAL_ITLB_SET2_E1_PPN_CONST 0x00000000
-/* Constant CA values for each entry of ITLB way set 2 (because CA_CONSTMASK is non-zero): */
-#define XCHAL_ITLB_SET2_E0_CA_CONST 0x07
-#define XCHAL_ITLB_SET2_E1_CA_CONST 0x03
-
-/* ITLB way set 3 (group of ways 6 thru 6): */
-#define XCHAL_ITLB_SET3_WAY 6 /* index of first way in this way set */
-#define XCHAL_ITLB_SET3_WAYS 1 /* number of (contiguous) ways in this way set */
-#define XCHAL_ITLB_SET3_ENTRIES_LOG2 1 /* log2(number of entries in this way) */
-#define XCHAL_ITLB_SET3_ENTRIES 2 /* number of entries in this way (always a power of 2) */
-#define XCHAL_ITLB_SET3_ARF 0 /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
-#define XCHAL_ITLB_SET3_PAGESIZES 1 /* number of supported page sizes in this way */
-#define XCHAL_ITLB_SET3_PAGESZ_BITS 0 /* number of bits to encode the page size */
-#define XCHAL_ITLB_SET3_PAGESZ_LOG2_MIN 28 /* log2(minimum supported page size) */
-#define XCHAL_ITLB_SET3_PAGESZ_LOG2_MAX 28 /* log2(maximum supported page size) */
-#define XCHAL_ITLB_SET3_PAGESZ_LOG2_LIST 28 /* list of log2(page size)s, separated by XCHAL_SEP;
- 2^PAGESZ_BITS entries in list, unsupported entries are zero */
-#define XCHAL_ITLB_SET3_ASID_CONSTMASK 0xFF /* constant ASID bits; 0 if all writable */
-#define XCHAL_ITLB_SET3_VPN_CONSTMASK 0xE0000000 /* constant VPN bits, not including entry index bits; 0 if all writable */
-#define XCHAL_ITLB_SET3_PPN_CONSTMASK 0xF0000000 /* constant PPN bits, including entry index bits; 0 if all writable */
-#define XCHAL_ITLB_SET3_CA_CONSTMASK 0x0000000F /* constant CA bits; 0 if all writable */
-#define XCHAL_ITLB_SET3_ASID_RESET 0 /* 1 if ASID reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET3_VPN_RESET 0 /* 1 if VPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET3_PPN_RESET 0 /* 1 if PPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_ITLB_SET3_CA_RESET 0 /* 1 if CA reset values defined (and all writable); 0 otherwise */
-/* Constant ASID values for each entry of ITLB way set 3 (because ASID_CONSTMASK is non-zero): */
-#define XCHAL_ITLB_SET3_E0_ASID_CONST 0x01
-#define XCHAL_ITLB_SET3_E1_ASID_CONST 0x01
-/* Constant VPN values for each entry of ITLB way set 3 (because VPN_CONSTMASK is non-zero): */
-#define XCHAL_ITLB_SET3_E0_VPN_CONST 0xE0000000
-#define XCHAL_ITLB_SET3_E1_VPN_CONST 0xF0000000
-/* Constant PPN values for each entry of ITLB way set 3 (because PPN_CONSTMASK is non-zero): */
-#define XCHAL_ITLB_SET3_E0_PPN_CONST 0xF0000000
-#define XCHAL_ITLB_SET3_E1_PPN_CONST 0xF0000000
-/* Constant CA values for each entry of ITLB way set 3 (because CA_CONSTMASK is non-zero): */
-#define XCHAL_ITLB_SET3_E0_CA_CONST 0x07
-#define XCHAL_ITLB_SET3_E1_CA_CONST 0x03
-
-/* Indexing macros: */
-#define _XCHAL_ITLB_SET(n,_what) XCHAL_ITLB_SET ## n ## _what
-#define XCHAL_ITLB_SET(n,what) _XCHAL_ITLB_SET(n, _ ## what )
-#define _XCHAL_ITLB_SET_E(n,i,_what) XCHAL_ITLB_SET ## n ## _E ## i ## _what
-#define XCHAL_ITLB_SET_E(n,i,what) _XCHAL_ITLB_SET_E(n,i, _ ## what )
-/*
- * Example use: XCHAL_ITLB_SET(XCHAL_ITLB_ARF_SET0,ENTRIES)
- * to get the value of XCHAL_ITLB_SET<n>_ENTRIES where <n> is the first auto-refill set.
- */
-
-
-/*** Data TLB: ***/
-
-#define XCHAL_DTLB_WAY_BITS 4 /* number of bits holding the ways */
-#define XCHAL_DTLB_WAYS 10 /* number of ways (n-way set-associative TLB) */
-#define XCHAL_DTLB_ARF_WAYS 4 /* number of auto-refill ways */
-#define XCHAL_DTLB_SETS 5 /* number of sets (groups of ways with identical settings) */
-
-/* Way set to which each way belongs: */
-#define XCHAL_DTLB_WAY0_SET 0
-#define XCHAL_DTLB_WAY1_SET 0
-#define XCHAL_DTLB_WAY2_SET 0
-#define XCHAL_DTLB_WAY3_SET 0
-#define XCHAL_DTLB_WAY4_SET 1
-#define XCHAL_DTLB_WAY5_SET 2
-#define XCHAL_DTLB_WAY6_SET 3
-#define XCHAL_DTLB_WAY7_SET 4
-#define XCHAL_DTLB_WAY8_SET 4
-#define XCHAL_DTLB_WAY9_SET 4
-
-/* Ways sets that are used by hardware auto-refill (ARF): */
-#define XCHAL_DTLB_ARF_SETS 1 /* number of auto-refill sets */
-#define XCHAL_DTLB_ARF_SET0 0 /* index of n'th auto-refill set */
-
-/* Way sets that are "min-wired" (see terminology comment above): */
-#define XCHAL_DTLB_MINWIRED_SETS 1 /* number of "min-wired" sets */
-#define XCHAL_DTLB_MINWIRED_SET0 4 /* index of n'th "min-wired" set */
-
-
-/* DTLB way set 0 (group of ways 0 thru 3): */
-#define XCHAL_DTLB_SET0_WAY 0 /* index of first way in this way set */
-#define XCHAL_DTLB_SET0_WAYS 4 /* number of (contiguous) ways in this way set */
-#define XCHAL_DTLB_SET0_ENTRIES_LOG2 2 /* log2(number of entries in this way) */
-#define XCHAL_DTLB_SET0_ENTRIES 4 /* number of entries in this way (always a power of 2) */
-#define XCHAL_DTLB_SET0_ARF 1 /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
-#define XCHAL_DTLB_SET0_PAGESIZES 1 /* number of supported page sizes in this way */
-#define XCHAL_DTLB_SET0_PAGESZ_BITS 0 /* number of bits to encode the page size */
-#define XCHAL_DTLB_SET0_PAGESZ_LOG2_MIN 12 /* log2(minimum supported page size) */
-#define XCHAL_DTLB_SET0_PAGESZ_LOG2_MAX 12 /* log2(maximum supported page size) */
-#define XCHAL_DTLB_SET0_PAGESZ_LOG2_LIST 12 /* list of log2(page size)s, separated by XCHAL_SEP;
- 2^PAGESZ_BITS entries in list, unsupported entries are zero */
-#define XCHAL_DTLB_SET0_ASID_CONSTMASK 0 /* constant ASID bits; 0 if all writable */
-#define XCHAL_DTLB_SET0_VPN_CONSTMASK 0 /* constant VPN bits, not including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET0_PPN_CONSTMASK 0 /* constant PPN bits, including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET0_CA_CONSTMASK 0 /* constant CA bits; 0 if all writable */
-#define XCHAL_DTLB_SET0_ASID_RESET 0 /* 1 if ASID reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET0_VPN_RESET 0 /* 1 if VPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET0_PPN_RESET 0 /* 1 if PPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET0_CA_RESET 0 /* 1 if CA reset values defined (and all writable); 0 otherwise */
-
-/* DTLB way set 1 (group of ways 4 thru 4): */
-#define XCHAL_DTLB_SET1_WAY 4 /* index of first way in this way set */
-#define XCHAL_DTLB_SET1_WAYS 1 /* number of (contiguous) ways in this way set */
-#define XCHAL_DTLB_SET1_ENTRIES_LOG2 2 /* log2(number of entries in this way) */
-#define XCHAL_DTLB_SET1_ENTRIES 4 /* number of entries in this way (always a power of 2) */
-#define XCHAL_DTLB_SET1_ARF 0 /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
-#define XCHAL_DTLB_SET1_PAGESIZES 4 /* number of supported page sizes in this way */
-#define XCHAL_DTLB_SET1_PAGESZ_BITS 2 /* number of bits to encode the page size */
-#define XCHAL_DTLB_SET1_PAGESZ_LOG2_MIN 20 /* log2(minimum supported page size) */
-#define XCHAL_DTLB_SET1_PAGESZ_LOG2_MAX 26 /* log2(maximum supported page size) */
-#define XCHAL_DTLB_SET1_PAGESZ_LOG2_LIST 20 XCHAL_SEP 22 XCHAL_SEP 24 XCHAL_SEP 26 /* list of log2(page size)s, separated by XCHAL_SEP;
- 2^PAGESZ_BITS entries in list, unsupported entries are zero */
-#define XCHAL_DTLB_SET1_ASID_CONSTMASK 0 /* constant ASID bits; 0 if all writable */
-#define XCHAL_DTLB_SET1_VPN_CONSTMASK 0 /* constant VPN bits, not including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET1_PPN_CONSTMASK 0 /* constant PPN bits, including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET1_CA_CONSTMASK 0 /* constant CA bits; 0 if all writable */
-#define XCHAL_DTLB_SET1_ASID_RESET 0 /* 1 if ASID reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET1_VPN_RESET 0 /* 1 if VPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET1_PPN_RESET 0 /* 1 if PPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET1_CA_RESET 0 /* 1 if CA reset values defined (and all writable); 0 otherwise */
-
-/* DTLB way set 2 (group of ways 5 thru 5): */
-#define XCHAL_DTLB_SET2_WAY 5 /* index of first way in this way set */
-#define XCHAL_DTLB_SET2_WAYS 1 /* number of (contiguous) ways in this way set */
-#define XCHAL_DTLB_SET2_ENTRIES_LOG2 1 /* log2(number of entries in this way) */
-#define XCHAL_DTLB_SET2_ENTRIES 2 /* number of entries in this way (always a power of 2) */
-#define XCHAL_DTLB_SET2_ARF 0 /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
-#define XCHAL_DTLB_SET2_PAGESIZES 1 /* number of supported page sizes in this way */
-#define XCHAL_DTLB_SET2_PAGESZ_BITS 0 /* number of bits to encode the page size */
-#define XCHAL_DTLB_SET2_PAGESZ_LOG2_MIN 27 /* log2(minimum supported page size) */
-#define XCHAL_DTLB_SET2_PAGESZ_LOG2_MAX 27 /* log2(maximum supported page size) */
-#define XCHAL_DTLB_SET2_PAGESZ_LOG2_LIST 27 /* list of log2(page size)s, separated by XCHAL_SEP;
- 2^PAGESZ_BITS entries in list, unsupported entries are zero */
-#define XCHAL_DTLB_SET2_ASID_CONSTMASK 0xFF /* constant ASID bits; 0 if all writable */
-#define XCHAL_DTLB_SET2_VPN_CONSTMASK 0xF0000000 /* constant VPN bits, not including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET2_PPN_CONSTMASK 0xF8000000 /* constant PPN bits, including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET2_CA_CONSTMASK 0x0000000F /* constant CA bits; 0 if all writable */
-#define XCHAL_DTLB_SET2_ASID_RESET 0 /* 1 if ASID reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET2_VPN_RESET 0 /* 1 if VPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET2_PPN_RESET 0 /* 1 if PPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET2_CA_RESET 0 /* 1 if CA reset values defined (and all writable); 0 otherwise */
-/* Constant ASID values for each entry of DTLB way set 2 (because ASID_CONSTMASK is non-zero): */
-#define XCHAL_DTLB_SET2_E0_ASID_CONST 0x01
-#define XCHAL_DTLB_SET2_E1_ASID_CONST 0x01
-/* Constant VPN values for each entry of DTLB way set 2 (because VPN_CONSTMASK is non-zero): */
-#define XCHAL_DTLB_SET2_E0_VPN_CONST 0xD0000000
-#define XCHAL_DTLB_SET2_E1_VPN_CONST 0xD8000000
-/* Constant PPN values for each entry of DTLB way set 2 (because PPN_CONSTMASK is non-zero): */
-#define XCHAL_DTLB_SET2_E0_PPN_CONST 0x00000000
-#define XCHAL_DTLB_SET2_E1_PPN_CONST 0x00000000
-/* Constant CA values for each entry of DTLB way set 2 (because CA_CONSTMASK is non-zero): */
-#define XCHAL_DTLB_SET2_E0_CA_CONST 0x07
-#define XCHAL_DTLB_SET2_E1_CA_CONST 0x03
-
-/* DTLB way set 3 (group of ways 6 thru 6): */
-#define XCHAL_DTLB_SET3_WAY 6 /* index of first way in this way set */
-#define XCHAL_DTLB_SET3_WAYS 1 /* number of (contiguous) ways in this way set */
-#define XCHAL_DTLB_SET3_ENTRIES_LOG2 1 /* log2(number of entries in this way) */
-#define XCHAL_DTLB_SET3_ENTRIES 2 /* number of entries in this way (always a power of 2) */
-#define XCHAL_DTLB_SET3_ARF 0 /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
-#define XCHAL_DTLB_SET3_PAGESIZES 1 /* number of supported page sizes in this way */
-#define XCHAL_DTLB_SET3_PAGESZ_BITS 0 /* number of bits to encode the page size */
-#define XCHAL_DTLB_SET3_PAGESZ_LOG2_MIN 28 /* log2(minimum supported page size) */
-#define XCHAL_DTLB_SET3_PAGESZ_LOG2_MAX 28 /* log2(maximum supported page size) */
-#define XCHAL_DTLB_SET3_PAGESZ_LOG2_LIST 28 /* list of log2(page size)s, separated by XCHAL_SEP;
- 2^PAGESZ_BITS entries in list, unsupported entries are zero */
-#define XCHAL_DTLB_SET3_ASID_CONSTMASK 0xFF /* constant ASID bits; 0 if all writable */
-#define XCHAL_DTLB_SET3_VPN_CONSTMASK 0xE0000000 /* constant VPN bits, not including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET3_PPN_CONSTMASK 0xF0000000 /* constant PPN bits, including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET3_CA_CONSTMASK 0x0000000F /* constant CA bits; 0 if all writable */
-#define XCHAL_DTLB_SET3_ASID_RESET 0 /* 1 if ASID reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET3_VPN_RESET 0 /* 1 if VPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET3_PPN_RESET 0 /* 1 if PPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET3_CA_RESET 0 /* 1 if CA reset values defined (and all writable); 0 otherwise */
-/* Constant ASID values for each entry of DTLB way set 3 (because ASID_CONSTMASK is non-zero): */
-#define XCHAL_DTLB_SET3_E0_ASID_CONST 0x01
-#define XCHAL_DTLB_SET3_E1_ASID_CONST 0x01
-/* Constant VPN values for each entry of DTLB way set 3 (because VPN_CONSTMASK is non-zero): */
-#define XCHAL_DTLB_SET3_E0_VPN_CONST 0xE0000000
-#define XCHAL_DTLB_SET3_E1_VPN_CONST 0xF0000000
-/* Constant PPN values for each entry of DTLB way set 3 (because PPN_CONSTMASK is non-zero): */
-#define XCHAL_DTLB_SET3_E0_PPN_CONST 0xF0000000
-#define XCHAL_DTLB_SET3_E1_PPN_CONST 0xF0000000
-/* Constant CA values for each entry of DTLB way set 3 (because CA_CONSTMASK is non-zero): */
-#define XCHAL_DTLB_SET3_E0_CA_CONST 0x07
-#define XCHAL_DTLB_SET3_E1_CA_CONST 0x03
-
-/* DTLB way set 4 (group of ways 7 thru 9): */
-#define XCHAL_DTLB_SET4_WAY 7 /* index of first way in this way set */
-#define XCHAL_DTLB_SET4_WAYS 3 /* number of (contiguous) ways in this way set */
-#define XCHAL_DTLB_SET4_ENTRIES_LOG2 0 /* log2(number of entries in this way) */
-#define XCHAL_DTLB_SET4_ENTRIES 1 /* number of entries in this way (always a power of 2) */
-#define XCHAL_DTLB_SET4_ARF 0 /* 1=autorefill by h/w, 0=non-autorefill (wired/constant/static) */
-#define XCHAL_DTLB_SET4_PAGESIZES 1 /* number of supported page sizes in this way */
-#define XCHAL_DTLB_SET4_PAGESZ_BITS 0 /* number of bits to encode the page size */
-#define XCHAL_DTLB_SET4_PAGESZ_LOG2_MIN 12 /* log2(minimum supported page size) */
-#define XCHAL_DTLB_SET4_PAGESZ_LOG2_MAX 12 /* log2(maximum supported page size) */
-#define XCHAL_DTLB_SET4_PAGESZ_LOG2_LIST 12 /* list of log2(page size)s, separated by XCHAL_SEP;
- 2^PAGESZ_BITS entries in list, unsupported entries are zero */
-#define XCHAL_DTLB_SET4_ASID_CONSTMASK 0 /* constant ASID bits; 0 if all writable */
-#define XCHAL_DTLB_SET4_VPN_CONSTMASK 0 /* constant VPN bits, not including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET4_PPN_CONSTMASK 0 /* constant PPN bits, including entry index bits; 0 if all writable */
-#define XCHAL_DTLB_SET4_CA_CONSTMASK 0 /* constant CA bits; 0 if all writable */
-#define XCHAL_DTLB_SET4_ASID_RESET 0 /* 1 if ASID reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET4_VPN_RESET 0 /* 1 if VPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET4_PPN_RESET 0 /* 1 if PPN reset values defined (and all writable); 0 otherwise */
-#define XCHAL_DTLB_SET4_CA_RESET 0 /* 1 if CA reset values defined (and all writable); 0 otherwise */
-
-/* Indexing macros: */
-#define _XCHAL_DTLB_SET(n,_what) XCHAL_DTLB_SET ## n ## _what
-#define XCHAL_DTLB_SET(n,what) _XCHAL_DTLB_SET(n, _ ## what )
-#define _XCHAL_DTLB_SET_E(n,i,_what) XCHAL_DTLB_SET ## n ## _E ## i ## _what
-#define XCHAL_DTLB_SET_E(n,i,what) _XCHAL_DTLB_SET_E(n,i, _ ## what )
-/*
- * Example use: XCHAL_DTLB_SET(XCHAL_DTLB_ARF_SET0,ENTRIES)
- * to get the value of XCHAL_DTLB_SET<n>_ENTRIES where <n> is the first auto-refill set.
- */
-
-
-/*
- * Determine whether we have a full MMU (with Page Table and Protection)
- * usable for an MMU-based OS:
- */
-#if XCHAL_HAVE_TLBS && !XCHAL_HAVE_SPANNING_WAY && XCHAL_ITLB_ARF_WAYS > 0 && XCHAL_DTLB_ARF_WAYS > 0 && XCHAL_MMU_RINGS >= 2
-# define XCHAL_HAVE_PTP_MMU 1 /* have full MMU (with page table [autorefill] and protection) */
-#else
-# define XCHAL_HAVE_PTP_MMU 0 /* don't have full MMU */
-#endif
-
-/*
- * For full MMUs, report kernel RAM segment and kernel I/O segment static page mappings:
- */
-#if XCHAL_HAVE_PTP_MMU
-#define XCHAL_KSEG_CACHED_VADDR 0xD0000000 /* virt.addr of kernel RAM cached static map */
-#define XCHAL_KSEG_CACHED_PADDR 0x00000000 /* phys.addr of kseg_cached */
-#define XCHAL_KSEG_CACHED_SIZE 0x08000000 /* size in bytes of kseg_cached (assumed power of 2!!!) */
-#define XCHAL_KSEG_BYPASS_VADDR 0xD8000000 /* virt.addr of kernel RAM bypass (uncached) static map */
-#define XCHAL_KSEG_BYPASS_PADDR 0x00000000 /* phys.addr of kseg_bypass */
-#define XCHAL_KSEG_BYPASS_SIZE 0x08000000 /* size in bytes of kseg_bypass (assumed power of 2!!!) */
-
-#define XCHAL_KIO_CACHED_VADDR 0xE0000000 /* virt.addr of kernel I/O cached static map */
-#define XCHAL_KIO_CACHED_PADDR 0xF0000000 /* phys.addr of kio_cached */
-#define XCHAL_KIO_CACHED_SIZE 0x10000000 /* size in bytes of kio_cached (assumed power of 2!!!) */
-#define XCHAL_KIO_BYPASS_VADDR 0xF0000000 /* virt.addr of kernel I/O bypass (uncached) static map */
-#define XCHAL_KIO_BYPASS_PADDR 0xF0000000 /* phys.addr of kio_bypass */
-#define XCHAL_KIO_BYPASS_SIZE 0x10000000 /* size in bytes of kio_bypass (assumed power of 2!!!) */
-
-#define XCHAL_SEG_MAPPABLE_VADDR 0x00000000 /* start of largest non-static-mapped virtual addr area */
-#define XCHAL_SEG_MAPPABLE_SIZE 0xD0000000 /* size in bytes of " */
-/* define XCHAL_SEG_MAPPABLE2_xxx if more areas present, sorted in order of descending size. */
-#endif
-
-
-/*----------------------------------------------------------------------
- MISC
- ----------------------------------------------------------------------*/
-
-#define XCHAL_NUM_WRITEBUFFER_ENTRIES 4 /* number of write buffer entries */
-
-#define XCHAL_CORE_ID "linux_be" /* configuration's alphanumeric core identifier
- (CoreID) set in the Xtensa Processor Generator */
-
-#define XCHAL_BUILD_UNIQUE_ID 0x00003256 /* software build-unique ID (22-bit) */
-
-/* These definitions describe the hardware targeted by this software: */
-#define XCHAL_HW_CONFIGID0 0xC103D1FF /* config ID reg 0 value (upper 32 of 64 bits) */
-#define XCHAL_HW_CONFIGID1 0x00803256 /* config ID reg 1 value (lower 32 of 64 bits) */
-#define XCHAL_CONFIGID0 XCHAL_HW_CONFIGID0 /* for backward compatibility only -- don't use! */
-#define XCHAL_CONFIGID1 XCHAL_HW_CONFIGID1 /* for backward compatibility only -- don't use! */
-#define XCHAL_HW_RELEASE_MAJOR 1050 /* major release of targeted hardware */
-#define XCHAL_HW_RELEASE_MINOR 1 /* minor release of targeted hardware */
-#define XCHAL_HW_RELEASE_NAME "T1050.1" /* full release name of targeted hardware */
-#define XTHAL_HW_REL_T1050 1
-#define XTHAL_HW_REL_T1050_1 1
-#define XCHAL_HW_CONFIGID_RELIABLE 1
-
-
-/*
- * Miscellaneous special register fields:
- */
-
-
-/* DBREAKC (special register number 160): */
-#define XCHAL_DBREAKC_VALIDMASK 0xC000003F /* bits of DBREAKC that are defined */
-/* MASK field: */
-#define XCHAL_DBREAKC_MASK_BITS 6 /* number of bits in MASK field */
-#define XCHAL_DBREAKC_MASK_NUM 64 /* max number of possible causes (2^bits) */
-#define XCHAL_DBREAKC_MASK_SHIFT 0 /* position of MASK bits in DBREAKC, starting from lsbit */
-#define XCHAL_DBREAKC_MASK_MASK 0x0000003F /* mask of bits in MASK field of DBREAKC */
-/* LOADBREAK field: */
-#define XCHAL_DBREAKC_LOADBREAK_BITS 1 /* number of bits in LOADBREAK field */
-#define XCHAL_DBREAKC_LOADBREAK_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_DBREAKC_LOADBREAK_SHIFT 30 /* position of LOADBREAK bits in DBREAKC, starting from lsbit */
-#define XCHAL_DBREAKC_LOADBREAK_MASK 0x40000000 /* mask of bits in LOADBREAK field of DBREAKC */
-/* STOREBREAK field: */
-#define XCHAL_DBREAKC_STOREBREAK_BITS 1 /* number of bits in STOREBREAK field */
-#define XCHAL_DBREAKC_STOREBREAK_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_DBREAKC_STOREBREAK_SHIFT 31 /* position of STOREBREAK bits in DBREAKC, starting from lsbit */
-#define XCHAL_DBREAKC_STOREBREAK_MASK 0x80000000 /* mask of bits in STOREBREAK field of DBREAKC */
-
-/* PS (special register number 230): */
-#define XCHAL_PS_VALIDMASK 0x00070FFF /* bits of PS that are defined */
-/* INTLEVEL field: */
-#define XCHAL_PS_INTLEVEL_BITS 4 /* number of bits in INTLEVEL field */
-#define XCHAL_PS_INTLEVEL_NUM 16 /* max number of possible causes (2^bits) */
-#define XCHAL_PS_INTLEVEL_SHIFT 0 /* position of INTLEVEL bits in PS, starting from lsbit */
-#define XCHAL_PS_INTLEVEL_MASK 0x0000000F /* mask of bits in INTLEVEL field of PS */
-/* EXCM field: */
-#define XCHAL_PS_EXCM_BITS 1 /* number of bits in EXCM field */
-#define XCHAL_PS_EXCM_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_PS_EXCM_SHIFT 4 /* position of EXCM bits in PS, starting from lsbit */
-#define XCHAL_PS_EXCM_MASK 0x00000010 /* mask of bits in EXCM field of PS */
-/* PROGSTACK field: */
-#define XCHAL_PS_PROGSTACK_BITS 1 /* number of bits in PROGSTACK field */
-#define XCHAL_PS_PROGSTACK_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_PS_PROGSTACK_SHIFT 5 /* position of PROGSTACK bits in PS, starting from lsbit */
-#define XCHAL_PS_PROGSTACK_MASK 0x00000020 /* mask of bits in PROGSTACK field of PS */
-/* RING field: */
-#define XCHAL_PS_RING_BITS 2 /* number of bits in RING field */
-#define XCHAL_PS_RING_NUM 4 /* max number of possible causes (2^bits) */
-#define XCHAL_PS_RING_SHIFT 6 /* position of RING bits in PS, starting from lsbit */
-#define XCHAL_PS_RING_MASK 0x000000C0 /* mask of bits in RING field of PS */
-/* OWB field: */
-#define XCHAL_PS_OWB_BITS 4 /* number of bits in OWB field */
-#define XCHAL_PS_OWB_NUM 16 /* max number of possible causes (2^bits) */
-#define XCHAL_PS_OWB_SHIFT 8 /* position of OWB bits in PS, starting from lsbit */
-#define XCHAL_PS_OWB_MASK 0x00000F00 /* mask of bits in OWB field of PS */
-/* CALLINC field: */
-#define XCHAL_PS_CALLINC_BITS 2 /* number of bits in CALLINC field */
-#define XCHAL_PS_CALLINC_NUM 4 /* max number of possible causes (2^bits) */
-#define XCHAL_PS_CALLINC_SHIFT 16 /* position of CALLINC bits in PS, starting from lsbit */
-#define XCHAL_PS_CALLINC_MASK 0x00030000 /* mask of bits in CALLINC field of PS */
-/* WOE field: */
-#define XCHAL_PS_WOE_BITS 1 /* number of bits in WOE field */
-#define XCHAL_PS_WOE_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_PS_WOE_SHIFT 18 /* position of WOE bits in PS, starting from lsbit */
-#define XCHAL_PS_WOE_MASK 0x00040000 /* mask of bits in WOE field of PS */
-
-/* EXCCAUSE (special register number 232): */
-#define XCHAL_EXCCAUSE_VALIDMASK 0x0000003F /* bits of EXCCAUSE that are defined */
-/* EXCCAUSE field: */
-#define XCHAL_EXCCAUSE_BITS 6 /* number of bits in EXCCAUSE register */
-#define XCHAL_EXCCAUSE_NUM 64 /* max number of possible causes (2^bits) */
-#define XCHAL_EXCCAUSE_SHIFT 0 /* position of EXCCAUSE bits in register, starting from lsbit */
-#define XCHAL_EXCCAUSE_MASK 0x0000003F /* mask of bits in EXCCAUSE register */
-
-/* DEBUGCAUSE (special register number 233): */
-#define XCHAL_DEBUGCAUSE_VALIDMASK 0x0000003F /* bits of DEBUGCAUSE that are defined */
-/* ICOUNT field: */
-#define XCHAL_DEBUGCAUSE_ICOUNT_BITS 1 /* number of bits in ICOUNT field */
-#define XCHAL_DEBUGCAUSE_ICOUNT_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_DEBUGCAUSE_ICOUNT_SHIFT 0 /* position of ICOUNT bits in DEBUGCAUSE, starting from lsbit */
-#define XCHAL_DEBUGCAUSE_ICOUNT_MASK 0x00000001 /* mask of bits in ICOUNT field of DEBUGCAUSE */
-/* IBREAK field: */
-#define XCHAL_DEBUGCAUSE_IBREAK_BITS 1 /* number of bits in IBREAK field */
-#define XCHAL_DEBUGCAUSE_IBREAK_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_DEBUGCAUSE_IBREAK_SHIFT 1 /* position of IBREAK bits in DEBUGCAUSE, starting from lsbit */
-#define XCHAL_DEBUGCAUSE_IBREAK_MASK 0x00000002 /* mask of bits in IBREAK field of DEBUGCAUSE */
-/* DBREAK field: */
-#define XCHAL_DEBUGCAUSE_DBREAK_BITS 1 /* number of bits in DBREAK field */
-#define XCHAL_DEBUGCAUSE_DBREAK_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_DEBUGCAUSE_DBREAK_SHIFT 2 /* position of DBREAK bits in DEBUGCAUSE, starting from lsbit */
-#define XCHAL_DEBUGCAUSE_DBREAK_MASK 0x00000004 /* mask of bits in DBREAK field of DEBUGCAUSE */
-/* BREAK field: */
-#define XCHAL_DEBUGCAUSE_BREAK_BITS 1 /* number of bits in BREAK field */
-#define XCHAL_DEBUGCAUSE_BREAK_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_DEBUGCAUSE_BREAK_SHIFT 3 /* position of BREAK bits in DEBUGCAUSE, starting from lsbit */
-#define XCHAL_DEBUGCAUSE_BREAK_MASK 0x00000008 /* mask of bits in BREAK field of DEBUGCAUSE */
-/* BREAKN field: */
-#define XCHAL_DEBUGCAUSE_BREAKN_BITS 1 /* number of bits in BREAKN field */
-#define XCHAL_DEBUGCAUSE_BREAKN_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_DEBUGCAUSE_BREAKN_SHIFT 4 /* position of BREAKN bits in DEBUGCAUSE, starting from lsbit */
-#define XCHAL_DEBUGCAUSE_BREAKN_MASK 0x00000010 /* mask of bits in BREAKN field of DEBUGCAUSE */
-/* DEBUGINT field: */
-#define XCHAL_DEBUGCAUSE_DEBUGINT_BITS 1 /* number of bits in DEBUGINT field */
-#define XCHAL_DEBUGCAUSE_DEBUGINT_NUM 2 /* max number of possible causes (2^bits) */
-#define XCHAL_DEBUGCAUSE_DEBUGINT_SHIFT 5 /* position of DEBUGINT bits in DEBUGCAUSE, starting from lsbit */
-#define XCHAL_DEBUGCAUSE_DEBUGINT_MASK 0x00000020 /* mask of bits in DEBUGINT field of DEBUGCAUSE */
-
-
-
-/*----------------------------------------------------------------------
- ISA
- ----------------------------------------------------------------------*/
-
-#define XCHAL_HAVE_DENSITY 1 /* 1 if density option configured, 0 otherwise */
-#define XCHAL_HAVE_LOOPS 1 /* 1 if zero-overhead loops option configured, 0 otherwise */
-/* Misc instructions: */
-#define XCHAL_HAVE_NSA 0 /* 1 if NSA/NSAU instructions option configured, 0 otherwise */
-#define XCHAL_HAVE_MINMAX 0 /* 1 if MIN/MAX instructions option configured, 0 otherwise */
-#define XCHAL_HAVE_SEXT 0 /* 1 if sign-extend instruction option configured, 0 otherwise */
-#define XCHAL_HAVE_CLAMPS 0 /* 1 if CLAMPS instruction option configured, 0 otherwise */
-#define XCHAL_HAVE_MAC16 0 /* 1 if MAC16 option configured, 0 otherwise */
-#define XCHAL_HAVE_MUL16 0 /* 1 if 16-bit integer multiply option configured, 0 otherwise */
-/*#define XCHAL_HAVE_POPC 0*/ /* 1 if CRC instruction option configured, 0 otherwise */
-/*#define XCHAL_HAVE_CRC 0*/ /* 1 if POPC instruction option configured, 0 otherwise */
-
-#define XCHAL_HAVE_SPECULATION 0 /* 1 if speculation option configured, 0 otherwise */
-/*#define XCHAL_HAVE_MP_SYNC 0*/ /* 1 if multiprocessor sync. option configured, 0 otherwise */
-#define XCHAL_HAVE_PRID 0 /* 1 if processor ID register configured, 0 otherwise */
-
-#define XCHAL_NUM_MISC_REGS 2 /* number of miscellaneous registers (0..4) */
-
-/* These relate a bit more to TIE: */
-#define XCHAL_HAVE_BOOLEANS 0 /* 1 if booleans option configured, 0 otherwise */
-#define XCHAL_HAVE_MUL32 0 /* 1 if 32-bit integer multiply option configured, 0 otherwise */
-#define XCHAL_HAVE_MUL32_HIGH 0 /* 1 if MUL32 option includes MULUH and MULSH, 0 otherwise */
-#define XCHAL_HAVE_FP 0 /* 1 if floating point option configured, 0 otherwise */
-
-
-/*----------------------------------------------------------------------
- DERIVED
- ----------------------------------------------------------------------*/
-
-#if XCHAL_HAVE_BE
-#define XCHAL_INST_ILLN 0xD60F /* 2-byte illegal instruction, msb-first */
-#define XCHAL_INST_ILLN_BYTE0 0xD6 /* 2-byte illegal instruction, 1st byte */
-#define XCHAL_INST_ILLN_BYTE1 0x0F /* 2-byte illegal instruction, 2nd byte */
-#else
-#define XCHAL_INST_ILLN 0xF06D /* 2-byte illegal instruction, lsb-first */
-#define XCHAL_INST_ILLN_BYTE0 0x6D /* 2-byte illegal instruction, 1st byte */
-#define XCHAL_INST_ILLN_BYTE1 0xF0 /* 2-byte illegal instruction, 2nd byte */
-#endif
-/* Belongs in xtensa/hal.h: */
-#define XTHAL_INST_ILL 0x000000 /* 3-byte illegal instruction */
-
-
-/*
- * Because information as to exactly which hardware release is targeted
- * by a given software build is not always available, compile-time HAL
- * Hardware-Release "_AT" macros are fuzzy (return 0, 1, or XCHAL_MAYBE):
- */
-#ifndef XCHAL_HW_RELEASE_MAJOR
-# define XCHAL_HW_CONFIGID_RELIABLE 0
-#endif
-#if XCHAL_HW_CONFIGID_RELIABLE
-# define XCHAL_HW_RELEASE_AT_OR_BELOW(major,minor) (XTHAL_REL_LE( XCHAL_HW_RELEASE_MAJOR,XCHAL_HW_RELEASE_MINOR, major,minor ) ? 1 : 0)
-# define XCHAL_HW_RELEASE_AT_OR_ABOVE(major,minor) (XTHAL_REL_GE( XCHAL_HW_RELEASE_MAJOR,XCHAL_HW_RELEASE_MINOR, major,minor ) ? 1 : 0)
-# define XCHAL_HW_RELEASE_AT(major,minor) (XTHAL_REL_EQ( XCHAL_HW_RELEASE_MAJOR,XCHAL_HW_RELEASE_MINOR, major,minor ) ? 1 : 0)
-# define XCHAL_HW_RELEASE_MAJOR_AT(major) ((XCHAL_HW_RELEASE_MAJOR == (major)) ? 1 : 0)
-#else
-# define XCHAL_HW_RELEASE_AT_OR_BELOW(major,minor) ( ((major) < 1040 && XCHAL_HAVE_XEA2) ? 0 \
- : ((major) > 1050 && XCHAL_HAVE_XEA1) ? 1 \
- : XTHAL_MAYBE )
-# define XCHAL_HW_RELEASE_AT_OR_ABOVE(major,minor) ( ((major) >= 2000 && XCHAL_HAVE_XEA1) ? 0 \
- : (XTHAL_REL_LE(major,minor, 1040,0) && XCHAL_HAVE_XEA2) ? 1 \
- : XTHAL_MAYBE )
-# define XCHAL_HW_RELEASE_AT(major,minor) ( (((major) < 1040 && XCHAL_HAVE_XEA2) || \
- ((major) >= 2000 && XCHAL_HAVE_XEA1)) ? 0 : XTHAL_MAYBE)
-# define XCHAL_HW_RELEASE_MAJOR_AT(major) XCHAL_HW_RELEASE_AT(major,0)
-#endif
-
-/*
- * Specific errata:
- */
-
-/*
- * Erratum T1020.H13, T1030.H7, T1040.H10, T1050.H4 (fixed in T1040.3 and T1050.1;
- * relevant only in XEA1, kernel-vector mode, level-one interrupts and overflows enabled):
- */
-#define XCHAL_MAYHAVE_ERRATUM_XEA1KWIN (XCHAL_HAVE_XEA1 && \
- (XCHAL_HW_RELEASE_AT_OR_BELOW(1040,2) != 0 \
- || XCHAL_HW_RELEASE_AT(1050,0)))
-
-
-
-#endif /*XTENSA_CONFIG_CORE_H*/
-
+++ /dev/null
-/* Definitions for Xtensa instructions, types, and protos. */
-
-/*
- * Copyright (c) 2003 Tensilica, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2.1 of the GNU Lesser General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
- * USA.
- */
-
-/* Do not modify. This is automatically generated.*/
-
-#ifndef _XTENSA_BASE_HEADER
-#define _XTENSA_BASE_HEADER
-
-#ifdef __XTENSA__
-#if defined(__GNUC__) && !defined(__XCC__)
-
-#define L8UI_ASM(arr, ars, imm) { \
- __asm__ volatile("l8ui %0, %1, %2" : "=a" (arr) : "a" (ars) , "i" (imm)); \
-}
-
-#define XT_L8UI(ars, imm) \
-({ \
- unsigned char _arr; \
- const unsigned char *_ars = ars; \
- L8UI_ASM(_arr, _ars, imm); \
- _arr; \
-})
-
-#define L16UI_ASM(arr, ars, imm) { \
- __asm__ volatile("l16ui %0, %1, %2" : "=a" (arr) : "a" (ars) , "i" (imm)); \
-}
-
-#define XT_L16UI(ars, imm) \
-({ \
- unsigned short _arr; \
- const unsigned short *_ars = ars; \
- L16UI_ASM(_arr, _ars, imm); \
- _arr; \
-})
-
-#define L16SI_ASM(arr, ars, imm) {\
- __asm__ volatile("l16si %0, %1, %2" : "=a" (arr) : "a" (ars) , "i" (imm)); \
-}
-
-#define XT_L16SI(ars, imm) \
-({ \
- signed short _arr; \
- const signed short *_ars = ars; \
- L16SI_ASM(_arr, _ars, imm); \
- _arr; \
-})
-
-#define L32I_ASM(arr, ars, imm) { \
- __asm__ volatile("l32i %0, %1, %2" : "=a" (arr) : "a" (ars) , "i" (imm)); \
-}
-
-#define XT_L32I(ars, imm) \
-({ \
- unsigned _arr; \
- const unsigned *_ars = ars; \
- L32I_ASM(_arr, _ars, imm); \
- _arr; \
-})
-
-#define S8I_ASM(arr, ars, imm) {\
- __asm__ volatile("s8i %0, %1, %2" : : "a" (arr), "a" (ars) , "i" (imm) : "memory" ); \
-}
-
-#define XT_S8I(arr, ars, imm) \
-({ \
- signed char _arr = arr; \
- const signed char *_ars = ars; \
- S8I_ASM(_arr, _ars, imm); \
-})
-
-#define S16I_ASM(arr, ars, imm) {\
- __asm__ volatile("s16i %0, %1, %2" : : "a" (arr), "a" (ars) , "i" (imm) : "memory" ); \
-}
-
-#define XT_S16I(arr, ars, imm) \
-({ \
- signed short _arr = arr; \
- const signed short *_ars = ars; \
- S16I_ASM(_arr, _ars, imm); \
-})
-
-#define S32I_ASM(arr, ars, imm) { \
- __asm__ volatile("s32i %0, %1, %2" : : "a" (arr), "a" (ars) , "i" (imm) : "memory" ); \
-}
-
-#define XT_S32I(arr, ars, imm) \
-({ \
- signed int _arr = arr; \
- const signed int *_ars = ars; \
- S32I_ASM(_arr, _ars, imm); \
-})
-
-#define ADDI_ASM(art, ars, imm) {\
- __asm__ ("addi %0, %1, %2" : "=a" (art) : "a" (ars), "i" (imm)); \
-}
-
-#define XT_ADDI(ars, imm) \
-({ \
- unsigned _art; \
- unsigned _ars = ars; \
- ADDI_ASM(_art, _ars, imm); \
- _art; \
-})
-
-#define ABS_ASM(arr, art) {\
- __asm__ ("abs %0, %1" : "=a" (arr) : "a" (art)); \
-}
-
-#define XT_ABS(art) \
-({ \
- unsigned _arr; \
- signed _art = art; \
- ABS_ASM(_arr, _art); \
- _arr; \
-})
-
-/* Note: In the following macros that reference SAR, the magic "state"
- register is used to capture the dependency on SAR. This is because
- SAR is a 5-bit register and thus there are no C types that can be
- used to represent it. It doesn't appear that the SAR register is
- even relevant to GCC, but it is marked as "clobbered" just in
- case. */
-
-#define SRC_ASM(arr, ars, art) {\
- register int _xt_sar __asm__ ("state"); \
- __asm__ ("src %0, %1, %2" \
- : "=a" (arr) : "a" (ars), "a" (art), "t" (_xt_sar)); \
-}
-
-#define XT_SRC(ars, art) \
-({ \
- unsigned _arr; \
- unsigned _ars = ars; \
- unsigned _art = art; \
- SRC_ASM(_arr, _ars, _art); \
- _arr; \
-})
-
-#define SSR_ASM(ars) {\
- register int _xt_sar __asm__ ("state"); \
- __asm__ ("ssr %1" : "=t" (_xt_sar) : "a" (ars) : "sar"); \
-}
-
-#define XT_SSR(ars) \
-({ \
- unsigned _ars = ars; \
- SSR_ASM(_ars); \
-})
-
-#define SSL_ASM(ars) {\
- register int _xt_sar __asm__ ("state"); \
- __asm__ ("ssl %1" : "=t" (_xt_sar) : "a" (ars) : "sar"); \
-}
-
-#define XT_SSL(ars) \
-({ \
- unsigned _ars = ars; \
- SSL_ASM(_ars); \
-})
-
-#define SSA8B_ASM(ars) {\
- register int _xt_sar __asm__ ("state"); \
- __asm__ ("ssa8b %1" : "=t" (_xt_sar) : "a" (ars) : "sar"); \
-}
-
-#define XT_SSA8B(ars) \
-({ \
- unsigned _ars = ars; \
- SSA8B_ASM(_ars); \
-})
-
-#define SSA8L_ASM(ars) {\
- register int _xt_sar __asm__ ("state"); \
- __asm__ ("ssa8l %1" : "=t" (_xt_sar) : "a" (ars) : "sar"); \
-}
-
-#define XT_SSA8L(ars) \
-({ \
- unsigned _ars = ars; \
- SSA8L_ASM(_ars); \
-})
-
-#define SSAI_ASM(imm) {\
- register int _xt_sar __asm__ ("state"); \
- __asm__ ("ssai %1" : "=t" (_xt_sar) : "i" (imm) : "sar"); \
-}
-
-#define XT_SSAI(imm) \
-({ \
- SSAI_ASM(imm); \
-})
-
-
-
-
-
-
-
-
-#endif /* __GNUC__ && !__XCC__ */
-
-#ifdef __XCC__
-
-/* Core load/store instructions */
-extern unsigned char _TIE_L8UI(const unsigned char * ars, immediate imm);
-extern unsigned short _TIE_L16UI(const unsigned short * ars, immediate imm);
-extern signed short _TIE_L16SI(const signed short * ars, immediate imm);
-extern unsigned _TIE_L32I(const unsigned * ars, immediate imm);
-extern void _TIE_S8I(unsigned char arr, unsigned char * ars, immediate imm);
-extern void _TIE_S16I(unsigned short arr, unsigned short * ars, immediate imm);
-extern void _TIE_S32I(unsigned arr, unsigned * ars, immediate imm);
-
-#define XT_L8UI _TIE_L8UI
-#define XT_L16UI _TIE_L16UI
-#define XT_L16SI _TIE_L16SI
-#define XT_L32I _TIE_L32I
-#define XT_S8I _TIE_S8I
-#define XT_S16I _TIE_S16I
-#define XT_S32I _TIE_S32I
-
-/* Add-immediate instruction */
-extern unsigned _TIE_ADDI(unsigned ars, immediate imm);
-#define XT_ADDI _TIE_ADDI
-
-/* Absolute value instruction */
-extern unsigned _TIE_ABS(int art);
-#define XT_ABS _TIE_ABS
-
-/* funnel shift instructions */
-extern unsigned _TIE_SRC(unsigned ars, unsigned art);
-#define XT_SRC _TIE_SRC
-extern void _TIE_SSR(unsigned ars);
-#define XT_SSR _TIE_SSR
-extern void _TIE_SSL(unsigned ars);
-#define XT_SSL _TIE_SSL
-extern void _TIE_SSA8B(unsigned ars);
-#define XT_SSA8B _TIE_SSA8B
-extern void _TIE_SSA8L(unsigned ars);
-#define XT_SSA8L _TIE_SSA8L
-extern void _TIE_SSAI(immediate imm);
-#define XT_SSAI _TIE_SSAI
-
-
-#endif /* __XCC__ */
-
-#endif /* __XTENSA__ */
-#endif /* !_XTENSA_BASE_HEADER */
+++ /dev/null
-/*
- * Xtensa Special Register symbolic names
- */
-
-/* $Id: specreg.h,v 1.2 2003/03/07 19:15:18 joetaylor Exp $ */
-
-/*
- * Copyright (c) 2003 Tensilica, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2.1 of the GNU Lesser General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
- * USA.
- */
-
-#ifndef XTENSA_SPECREG_H
-#define XTENSA_SPECREG_H
-
-/* Include these special register bitfield definitions, for historical reasons: */
-#include <xtensa/corebits.h>
-
-
-/* Special registers: */
-#define LBEG 0
-#define LEND 1
-#define LCOUNT 2
-#define SAR 3
-#define WINDOWBASE 72
-#define WINDOWSTART 73
-#define PTEVADDR 83
-#define RASID 90
-#define ITLBCFG 91
-#define DTLBCFG 92
-#define IBREAKENABLE 96
-#define DDR 104
-#define IBREAKA_0 128
-#define IBREAKA_1 129
-#define DBREAKA_0 144
-#define DBREAKA_1 145
-#define DBREAKC_0 160
-#define DBREAKC_1 161
-#define EPC_1 177
-#define EPC_2 178
-#define EPC_3 179
-#define EPC_4 180
-#define DEPC 192
-#define EPS_2 194
-#define EPS_3 195
-#define EPS_4 196
-#define EXCSAVE_1 209
-#define EXCSAVE_2 210
-#define EXCSAVE_3 211
-#define EXCSAVE_4 212
-#define INTERRUPT 226
-#define INTENABLE 228
-#define PS 230
-#define EXCCAUSE 232
-#define DEBUGCAUSE 233
-#define CCOUNT 234
-#define ICOUNT 236
-#define ICOUNTLEVEL 237
-#define EXCVADDR 238
-#define CCOMPARE_0 240
-#define CCOMPARE_1 241
-#define CCOMPARE_2 242
-#define MISC_REG_0 244
-#define MISC_REG_1 245
-
-/* Special cases (bases of special register series): */
-#define IBREAKA 128
-#define DBREAKA 144
-#define DBREAKC 160
-#define EPC 176
-#define EPS 192
-#define EXCSAVE 208
-#define CCOMPARE 240
-
-/* Special names for read-only and write-only interrupt registers: */
-#define INTREAD 226
-#define INTSET 226
-#define INTCLEAR 227
-
-#endif /* XTENSA_SPECREG_H */
-
+++ /dev/null
-/*
- * xtensa/config/system.h -- HAL definitions that are dependent on SYSTEM configuration
- *
- * NOTE: The location and contents of this file are highly subject to change.
- *
- * Source for configuration-independent binaries (which link in a
- * configuration-specific HAL library) must NEVER include this file.
- * The HAL itself has historically included this file in some instances,
- * but this is not appropriate either, because the HAL is meant to be
- * core-specific but system independent.
- */
-
-/*
- * Copyright (c) 2003 Tensilica, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2.1 of the GNU Lesser General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
- * USA.
- */
-
-
-#ifndef XTENSA_CONFIG_SYSTEM_H
-#define XTENSA_CONFIG_SYSTEM_H
-
-/*#include <xtensa/hal.h>*/
-
-
-
-/*----------------------------------------------------------------------
- DEVICE ADDRESSES
- ----------------------------------------------------------------------*/
-
-/*
- * Strange place to find these, but the configuration GUI
- * allows moving these around to account for various core
- * configurations. Specific boards (and their BSP software)
- * will have specific meanings for these components.
- */
-
-/* I/O Block areas: */
-#define XSHAL_IOBLOCK_CACHED_VADDR 0xE0000000
-#define XSHAL_IOBLOCK_CACHED_PADDR 0xF0000000
-#define XSHAL_IOBLOCK_CACHED_SIZE 0x0E000000
-
-#define XSHAL_IOBLOCK_BYPASS_VADDR 0xF0000000
-#define XSHAL_IOBLOCK_BYPASS_PADDR 0xF0000000
-#define XSHAL_IOBLOCK_BYPASS_SIZE 0x0E000000
-
-/* System ROM: */
-#define XSHAL_ROM_VADDR 0xEE000000
-#define XSHAL_ROM_PADDR 0xFE000000
-#define XSHAL_ROM_SIZE 0x00400000
-/* Largest available area (free of vectors): */
-#define XSHAL_ROM_AVAIL_VADDR 0xEE00052C
-#define XSHAL_ROM_AVAIL_VSIZE 0x003FFAD4
-
-/* System RAM: */
-#define XSHAL_RAM_VADDR 0xD0000000
-#define XSHAL_RAM_PADDR 0x00000000
-#define XSHAL_RAM_VSIZE 0x08000000
-#define XSHAL_RAM_PSIZE 0x10000000
-#define XSHAL_RAM_SIZE XSHAL_RAM_PSIZE
-/* Largest available area (free of vectors): */
-#define XSHAL_RAM_AVAIL_VADDR 0xD0000370
-#define XSHAL_RAM_AVAIL_VSIZE 0x07FFFC90
-
-/*
- * Shadow system RAM (same device as system RAM, at different address).
- * (Emulation boards need this for the SONIC Ethernet driver
- * when data caches are configured for writeback mode.)
- * NOTE: on full MMU configs, this points to the BYPASS virtual address
- * of system RAM, ie. is the same as XSHAL_RAM_* except that virtual
- * addresses are viewed through the BYPASS static map rather than
- * the CACHED static map.
- */
-#define XSHAL_RAM_BYPASS_VADDR 0xD8000000
-#define XSHAL_RAM_BYPASS_PADDR 0x00000000
-#define XSHAL_RAM_BYPASS_PSIZE 0x08000000
-
-/* Alternate system RAM (different device than system RAM): */
-#define XSHAL_ALTRAM_VADDR 0xCEE00000
-#define XSHAL_ALTRAM_PADDR 0xC0000000
-#define XSHAL_ALTRAM_SIZE 0x00200000
-
-
-/*----------------------------------------------------------------------
- * DEVICE-ADDRESS DEPENDENT...
- *
- * Values written to CACHEATTR special register (or its equivalent)
- * to enable and disable caches in various modes.
- *----------------------------------------------------------------------*/
-
-/*----------------------------------------------------------------------
- BACKWARD COMPATIBILITY ...
- ----------------------------------------------------------------------*/
-
-/*
- * NOTE: the following two macros are DEPRECATED. Use the latter
- * board-specific macros instead, which are specially tuned for the
- * particular target environments' memory maps.
- */
-#define XSHAL_CACHEATTR_BYPASS XSHAL_XT2000_CACHEATTR_BYPASS /* disable caches in bypass mode */
-#define XSHAL_CACHEATTR_DEFAULT XSHAL_XT2000_CACHEATTR_DEFAULT /* default setting to enable caches (no writeback!) */
-
-/*----------------------------------------------------------------------
- ISS (Instruction Set Simulator) SPECIFIC ...
- ----------------------------------------------------------------------*/
-
-#define XSHAL_ISS_CACHEATTR_WRITEBACK 0x1122222F /* enable caches in write-back mode */
-#define XSHAL_ISS_CACHEATTR_WRITEALLOC 0x1122222F /* enable caches in write-allocate mode */
-#define XSHAL_ISS_CACHEATTR_WRITETHRU 0x1122222F /* enable caches in write-through mode */
-#define XSHAL_ISS_CACHEATTR_BYPASS 0x2222222F /* disable caches in bypass mode */
-#define XSHAL_ISS_CACHEATTR_DEFAULT XSHAL_ISS_CACHEATTR_WRITEBACK /* default setting to enable caches */
-
-/* For Coware only: */
-#define XSHAL_COWARE_CACHEATTR_WRITEBACK 0x11222222 /* enable caches in write-back mode */
-#define XSHAL_COWARE_CACHEATTR_WRITEALLOC 0x11222222 /* enable caches in write-allocate mode */
-#define XSHAL_COWARE_CACHEATTR_WRITETHRU 0x11222222 /* enable caches in write-through mode */
-#define XSHAL_COWARE_CACHEATTR_BYPASS 0x22222222 /* disable caches in bypass mode */
-#define XSHAL_COWARE_CACHEATTR_DEFAULT XSHAL_COWARE_CACHEATTR_WRITEBACK /* default setting to enable caches */
-
-/* For BFM and other purposes: */
-#define XSHAL_ALLVALID_CACHEATTR_WRITEBACK 0x11222222 /* enable caches without any invalid regions */
-#define XSHAL_ALLVALID_CACHEATTR_DEFAULT XSHAL_ALLVALID_CACHEATTR_WRITEBACK /* default setting for caches without any invalid regions */
-
-#define XSHAL_ISS_PIPE_REGIONS 0
-#define XSHAL_ISS_SDRAM_REGIONS 0
-
-
-/*----------------------------------------------------------------------
- XT2000 BOARD SPECIFIC ...
- ----------------------------------------------------------------------*/
-
-#define XSHAL_XT2000_CACHEATTR_WRITEBACK 0x22FFFFFF /* enable caches in write-back mode */
-#define XSHAL_XT2000_CACHEATTR_WRITEALLOC 0x22FFFFFF /* enable caches in write-allocate mode */
-#define XSHAL_XT2000_CACHEATTR_WRITETHRU 0x22FFFFFF /* enable caches in write-through mode */
-#define XSHAL_XT2000_CACHEATTR_BYPASS 0x22FFFFFF /* disable caches in bypass mode */
-#define XSHAL_XT2000_CACHEATTR_DEFAULT XSHAL_XT2000_CACHEATTR_WRITEBACK /* default setting to enable caches */
-
-#define XSHAL_XT2000_PIPE_REGIONS 0x00001000 /* BusInt pipeline regions */
-#define XSHAL_XT2000_SDRAM_REGIONS 0x00000005 /* BusInt SDRAM regions */
-
-
-/*----------------------------------------------------------------------
- VECTOR SIZES
- ----------------------------------------------------------------------*/
-
-/*
- * Sizes allocated to vectors by the system (memory map) configuration.
- * These sizes are constrained by core configuration (eg. one vector's
- * code cannot overflow into another vector) but are dependent on the
- * system or board (or LSP) memory map configuration.
- *
- * Whether or not each vector happens to be in a system ROM is also
- * a system configuration matter, sometimes useful, included here also:
- */
-#define XSHAL_RESET_VECTOR_SIZE 0x000004E0
-#define XSHAL_RESET_VECTOR_ISROM 1
-#define XSHAL_USER_VECTOR_SIZE 0x0000001C
-#define XSHAL_USER_VECTOR_ISROM 0
-#define XSHAL_PROGRAMEXC_VECTOR_SIZE XSHAL_USER_VECTOR_SIZE /* for backward compatibility */
-#define XSHAL_USEREXC_VECTOR_SIZE XSHAL_USER_VECTOR_SIZE /* for backward compatibility */
-#define XSHAL_KERNEL_VECTOR_SIZE 0x0000001C
-#define XSHAL_KERNEL_VECTOR_ISROM 0
-#define XSHAL_STACKEDEXC_VECTOR_SIZE XSHAL_KERNEL_VECTOR_SIZE /* for backward compatibility */
-#define XSHAL_KERNELEXC_VECTOR_SIZE XSHAL_KERNEL_VECTOR_SIZE /* for backward compatibility */
-#define XSHAL_DOUBLEEXC_VECTOR_SIZE 0x000000E0
-#define XSHAL_DOUBLEEXC_VECTOR_ISROM 0
-#define XSHAL_WINDOW_VECTORS_SIZE 0x00000180
-#define XSHAL_WINDOW_VECTORS_ISROM 0
-#define XSHAL_INTLEVEL2_VECTOR_SIZE 0x0000000C
-#define XSHAL_INTLEVEL2_VECTOR_ISROM 0
-#define XSHAL_INTLEVEL3_VECTOR_SIZE 0x0000000C
-#define XSHAL_INTLEVEL3_VECTOR_ISROM 0
-#define XSHAL_INTLEVEL4_VECTOR_SIZE 0x0000000C
-#define XSHAL_INTLEVEL4_VECTOR_ISROM 1
-#define XSHAL_DEBUG_VECTOR_SIZE XSHAL_INTLEVEL4_VECTOR_SIZE
-#define XSHAL_DEBUG_VECTOR_ISROM XSHAL_INTLEVEL4_VECTOR_ISROM
-
-
-#endif /*XTENSA_CONFIG_SYSTEM_H*/
-
+++ /dev/null
-/*
- * xtensa/config/tie.h -- HAL definitions that are dependent on CORE and TIE configuration
- *
- * This header file is sometimes referred to as the "compile-time HAL" or CHAL.
- * It was generated for a specific Xtensa processor configuration,
- * and furthermore for a specific set of TIE source files that extend
- * basic core functionality.
- *
- * Source for configuration-independent binaries (which link in a
- * configuration-specific HAL library) must NEVER include this file.
- * It is perfectly normal, however, for the HAL source itself to include this file.
- */
-
-/*
- * Copyright (c) 2003 Tensilica, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2.1 of the GNU Lesser General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
- * USA.
- */
-
-
-#ifndef XTENSA_CONFIG_TIE_H
-#define XTENSA_CONFIG_TIE_H
-
-#include <xtensa/hal.h>
-
-
-/*----------------------------------------------------------------------
- GENERAL
- ----------------------------------------------------------------------*/
-
-/*
- * Separators for macros that expand into arrays.
- * These can be predefined by files that #include this one,
- * when different separators are required.
- */
-/* Element separator for macros that expand into 1-dimensional arrays: */
-#ifndef XCHAL_SEP
-#define XCHAL_SEP ,
-#endif
-/* Array separator for macros that expand into 2-dimensional arrays: */
-#ifndef XCHAL_SEP2
-#define XCHAL_SEP2 },{
-#endif
-
-
-
-
-
-
-/*----------------------------------------------------------------------
- COPROCESSORS and EXTRA STATE
- ----------------------------------------------------------------------*/
-
-#define XCHAL_CP_NUM 0 /* number of coprocessors */
-#define XCHAL_CP_MAX 0 /* max coprocessor id plus one (0 if none) */
-#define XCHAL_CP_MASK 0x00 /* bitmask of coprocessors by id */
-
-/* Space for coprocessors' state save areas: */
-#define XCHAL_CP0_SA_SIZE 0
-#define XCHAL_CP1_SA_SIZE 0
-#define XCHAL_CP2_SA_SIZE 0
-#define XCHAL_CP3_SA_SIZE 0
-#define XCHAL_CP4_SA_SIZE 0
-#define XCHAL_CP5_SA_SIZE 0
-#define XCHAL_CP6_SA_SIZE 0
-#define XCHAL_CP7_SA_SIZE 0
-/* Minimum required alignments of CP state save areas: */
-#define XCHAL_CP0_SA_ALIGN 1
-#define XCHAL_CP1_SA_ALIGN 1
-#define XCHAL_CP2_SA_ALIGN 1
-#define XCHAL_CP3_SA_ALIGN 1
-#define XCHAL_CP4_SA_ALIGN 1
-#define XCHAL_CP5_SA_ALIGN 1
-#define XCHAL_CP6_SA_ALIGN 1
-#define XCHAL_CP7_SA_ALIGN 1
-
-/* Indexing macros: */
-#define _XCHAL_CP_SA_SIZE(n) XCHAL_CP ## n ## _SA_SIZE
-#define XCHAL_CP_SA_SIZE(n) _XCHAL_CP_SA_SIZE(n) /* n = 0 .. 7 */
-#define _XCHAL_CP_SA_ALIGN(n) XCHAL_CP ## n ## _SA_ALIGN
-#define XCHAL_CP_SA_ALIGN(n) _XCHAL_CP_SA_ALIGN(n) /* n = 0 .. 7 */
-
-
-/* Space for "extra" state (user special registers and non-cp TIE) save area: */
-#define XCHAL_EXTRA_SA_SIZE 0
-#define XCHAL_EXTRA_SA_ALIGN 1
-
-/* Total save area size (extra + all coprocessors) */
-/* (not useful until xthal_{save,restore}_all_extra() is implemented, */
-/* but included for Tor2 beta; doesn't account for alignment!): */
-#define XCHAL_CPEXTRA_SA_SIZE_TOR2 0 /* Tor2Beta temporary definition -- do not use */
-
-/* Combined required alignment for all CP and EXTRA state save areas */
-/* (does not include required alignment for any base config registers): */
-#define XCHAL_CPEXTRA_SA_ALIGN 1
-
-/* ... */
-
-
-#ifdef __ASSEMBLER__
-/*
- * Assembly-language specific definitions (assembly macros, etc.).
- */
-#include <xtensa/config/specreg.h>
-
-/********************
- * Macros to save and restore the non-coprocessor TIE portion of EXTRA state.
- */
-
-/* (none) */
-
-
-/********************
- * Macros to create functions that save and restore all EXTRA (non-coprocessor) state
- * (does not include zero-overhead loop registers and non-optional registers).
- */
-
- /*
- * Macro that expands to the body of a function that
- * stores the extra (non-coprocessor) optional/custom state.
- * Entry: a2 = ptr to save area in which to save extra state
- * Exit: any register a2-a15 (?) may have been clobbered.
- */
- .macro xchal_extra_store_funcbody
- .endm
-
-
- /*
- * Macro that expands to the body of a function that
- * loads the extra (non-coprocessor) optional/custom state.
- * Entry: a2 = ptr to save area from which to restore extra state
- * Exit: any register a2-a15 (?) may have been clobbered.
- */
- .macro xchal_extra_load_funcbody
- .endm
-
-
-/********************
- * Macros to save and restore the state of each TIE coprocessor.
- */
-
-
-
-/********************
- * Macros to create functions that save and restore the state of *any* TIE coprocessor.
- */
-
- /*
- * Macro that expands to the body of a function
- * that stores the selected coprocessor's state (registers etc).
- * Entry: a2 = ptr to save area in which to save cp state
- * a3 = coprocessor number
- * Exit: any register a2-a15 (?) may have been clobbered.
- */
- .macro xchal_cpi_store_funcbody
- .endm
-
-
- /*
- * Macro that expands to the body of a function
- * that loads the selected coprocessor's state (registers etc).
- * Entry: a2 = ptr to save area from which to restore cp state
- * a3 = coprocessor number
- * Exit: any register a2-a15 (?) may have been clobbered.
- */
- .macro xchal_cpi_load_funcbody
- .endm
-
-#endif /*_ASMLANGUAGE*/
-
-
-/*
- * Contents of save areas in terms of libdb register numbers.
- * NOTE: CONTENTS_LIBDB_{UREG,REGF} macros are not defined in this file;
- * it is up to the user of this header file to define these macros
- * usefully before each expansion of the CONTENTS_LIBDB macros.
- * (Fields rsv[123] are reserved for future additions; they are currently
- * set to zero but may be set to some useful values in the future.)
- *
- * CONTENTS_LIBDB_SREG(libdbnum, offset, size, align, rsv1, name, sregnum, bitmask, rsv2, rsv3)
- * CONTENTS_LIBDB_UREG(libdbnum, offset, size, align, rsv1, name, uregnum, bitmask, rsv2, rsv3)
- * CONTENTS_LIBDB_REGF(libdbnum, offset, size, align, rsv1, name, index, numentries, contentsize, regname_base, regfile_name, rsv2, rsv3)
- */
-
-#define XCHAL_EXTRA_SA_CONTENTS_LIBDB_NUM 0
-#define XCHAL_EXTRA_SA_CONTENTS_LIBDB /* empty */
-
-#define XCHAL_CP0_SA_CONTENTS_LIBDB_NUM 0
-#define XCHAL_CP0_SA_CONTENTS_LIBDB /* empty */
-
-#define XCHAL_CP1_SA_CONTENTS_LIBDB_NUM 0
-#define XCHAL_CP1_SA_CONTENTS_LIBDB /* empty */
-
-#define XCHAL_CP2_SA_CONTENTS_LIBDB_NUM 0
-#define XCHAL_CP2_SA_CONTENTS_LIBDB /* empty */
-
-#define XCHAL_CP3_SA_CONTENTS_LIBDB_NUM 0
-#define XCHAL_CP3_SA_CONTENTS_LIBDB /* empty */
-
-#define XCHAL_CP4_SA_CONTENTS_LIBDB_NUM 0
-#define XCHAL_CP4_SA_CONTENTS_LIBDB /* empty */
-
-#define XCHAL_CP5_SA_CONTENTS_LIBDB_NUM 0
-#define XCHAL_CP5_SA_CONTENTS_LIBDB /* empty */
-
-#define XCHAL_CP6_SA_CONTENTS_LIBDB_NUM 0
-#define XCHAL_CP6_SA_CONTENTS_LIBDB /* empty */
-
-#define XCHAL_CP7_SA_CONTENTS_LIBDB_NUM 0
-#define XCHAL_CP7_SA_CONTENTS_LIBDB /* empty */
-
-
-
-
-
-
-/*----------------------------------------------------------------------
- MISC
- ----------------------------------------------------------------------*/
-
-#if 0 /* is there something equivalent for user TIE? */
-#define XCHAL_CORE_ID "linux_be" /* configuration's alphanumeric core identifier
- (CoreID) set in the Xtensa Processor Generator */
-
-#define XCHAL_BUILD_UNIQUE_ID 0x00003256 /* software build-unique ID (22-bit) */
-
-/* These definitions describe the hardware targeted by this software: */
-#define XCHAL_HW_CONFIGID0 0xC103D1FF /* config ID reg 0 value (upper 32 of 64 bits) */
-#define XCHAL_HW_CONFIGID1 0x00803256 /* config ID reg 1 value (lower 32 of 64 bits) */
-#define XCHAL_CONFIGID0 XCHAL_HW_CONFIGID0 /* for backward compatibility only -- don't use! */
-#define XCHAL_CONFIGID1 XCHAL_HW_CONFIGID1 /* for backward compatibility only -- don't use! */
-#define XCHAL_HW_RELEASE_MAJOR 1050 /* major release of targeted hardware */
-#define XCHAL_HW_RELEASE_MINOR 1 /* minor release of targeted hardware */
-#define XCHAL_HW_RELEASE_NAME "T1050.1" /* full release name of targeted hardware */
-#define XTHAL_HW_REL_T1050 1
-#define XTHAL_HW_REL_T1050_1 1
-#define XCHAL_HW_CONFIGID_RELIABLE 1
-#endif /*0*/
-
-
-
-/*----------------------------------------------------------------------
- ISA
- ----------------------------------------------------------------------*/
-
-#if 0 /* these probably don't belong here, but are related to or implemented using TIE */
-#define XCHAL_HAVE_BOOLEANS 0 /* 1 if booleans option configured, 0 otherwise */
-/* Misc instructions: */
-#define XCHAL_HAVE_MUL32 0 /* 1 if 32-bit integer multiply option configured, 0 otherwise */
-#define XCHAL_HAVE_MUL32_HIGH 0 /* 1 if MUL32 option includes MULUH and MULSH, 0 otherwise */
-
-#define XCHAL_HAVE_FP 0 /* 1 if floating point option configured, 0 otherwise */
-#endif /*0*/
-
-
-#endif /*XTENSA_CONFIG_TIE_H*/
-
+++ /dev/null
-#ifndef XTENSA_COREASM_H
-#define XTENSA_COREASM_H
-
-/*
- * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
- *
- * include/asm-xtensa/xtensa/coreasm.h -- assembler-specific
- * definitions that depend on CORE configuration.
- *
- * Source for configuration-independent binaries (which link in a
- * configuration-specific HAL library) must NEVER include this file.
- * It is perfectly normal, however, for the HAL itself to include this
- * file.
- *
- * This file must NOT include xtensa/config/system.h. Any assembler
- * header file that depends on system information should likely go in
- * a new systemasm.h (or sysasm.h) header file.
- *
- * NOTE: macro beqi32 is NOT configuration-dependent, and is placed
- * here til we will have configuration-independent header file.
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of
- * this archive for more details.
- *
- * Copyright (C) 2002 Tensilica Inc.
- */
-
-
-#include <xtensa/config/core.h>
-#include <xtensa/config/specreg.h>
-
-/*
- * Assembly-language specific definitions (assembly macros, etc.).
- */
-
-/*----------------------------------------------------------------------
- * find_ms_setbit
- *
- * This macro finds the most significant bit that is set in <as>
- * and return its index + <base> in <ad>, or <base> - 1 if <as> is zero.
- * The index counts starting at zero for the lsbit, so the return
- * value ranges from <base>-1 (no bit set) to <base>+31 (msbit set).
- *
- * Parameters:
- * <ad> destination address register (any register)
- * <as> source address register
- * <at> temporary address register (must be different than <as>)
- * <base> constant value added to result (usually 0 or 1)
- * On entry:
- * <ad> = undefined if different than <as>
- * <as> = value whose most significant set bit is to be found
- * <at> = undefined
- * no other registers are used by this macro.
- * On exit:
- * <ad> = <base> + index of msbit set in original <as>,
- * = <base> - 1 if original <as> was zero.
- * <as> clobbered (if not <ad>)
- * <at> clobbered (if not <ad>)
- * Example:
- * find_ms_setbit a0, a4, a0, 0 -- return in a0 index of msbit set in a4
- */
-
- .macro find_ms_setbit ad, as, at, base
-#if XCHAL_HAVE_NSA
- movi \at, 31+\base
- nsau \as, \as // get index of \as, numbered from msbit (32 if absent)
- sub \ad, \at, \as // get numbering from lsbit (0..31, -1 if absent)
-#else /* XCHAL_HAVE_NSA */
- movi \at, \base // start with result of 0 (point to lsbit of 32)
-
- beqz \as, 2f // special case for zero argument: return -1
- bltui \as, 0x10000, 1f // is it one of the 16 lsbits? (if so, check lower 16 bits)
- addi \at, \at, 16 // no, increment result to upper 16 bits (of 32)
- //srli \as, \as, 16 // check upper half (shift right 16 bits)
- extui \as, \as, 16, 16 // check upper half (shift right 16 bits)
-1: bltui \as, 0x100, 1f // is it one of the 8 lsbits? (if so, check lower 8 bits)
- addi \at, \at, 8 // no, increment result to upper 8 bits (of 16)
- srli \as, \as, 8 // shift right to check upper 8 bits
-1: bltui \as, 0x10, 1f // is it one of the 4 lsbits? (if so, check lower 4 bits)
- addi \at, \at, 4 // no, increment result to upper 4 bits (of 8)
- srli \as, \as, 4 // shift right 4 bits to check upper half
-1: bltui \as, 0x4, 1f // is it one of the 2 lsbits? (if so, check lower 2 bits)
- addi \at, \at, 2 // no, increment result to upper 2 bits (of 4)
- srli \as, \as, 2 // shift right 2 bits to check upper half
-1: bltui \as, 0x2, 1f // is it the lsbit?
- addi \at, \at, 2 // no, increment result to upper bit (of 2)
-2: addi \at, \at, -1 // (from just above: add 1; from beqz: return -1)
- //srli \as, \as, 1
-1: // done! \at contains index of msbit set (or -1 if none set)
- .if 0x\ad - 0x\at // destination different than \at ? (works because regs are a0-a15)
- mov \ad, \at // then move result to \ad
- .endif
-#endif /* XCHAL_HAVE_NSA */
- .endm // find_ms_setbit
-
-/*----------------------------------------------------------------------
- * find_ls_setbit
- *
- * This macro finds the least significant bit that is set in <as>,
- * and return its index in <ad>.
- * Usage is the same as for the find_ms_setbit macro.
- * Example:
- * find_ls_setbit a0, a4, a0, 0 -- return in a0 index of lsbit set in a4
- */
-
- .macro find_ls_setbit ad, as, at, base
- neg \at, \as // keep only the least-significant bit that is set...
- and \as, \at, \as // ... in \as
- find_ms_setbit \ad, \as, \at, \base
- .endm // find_ls_setbit
-
-/*----------------------------------------------------------------------
- * find_ls_one
- *
- * Same as find_ls_setbit with base zero.
- * Source (as) and destination (ad) registers must be different.
- * Provided for backward compatibility.
- */
-
- .macro find_ls_one ad, as
- find_ls_setbit \ad, \as, \ad, 0
- .endm // find_ls_one
-
-/*----------------------------------------------------------------------
- * floop, floopnez, floopgtz, floopend
- *
- * These macros are used for fast inner loops that
- * work whether or not the Loops options is configured.
- * If the Loops option is configured, they simply use
- * the zero-overhead LOOP instructions; otherwise
- * they use explicit decrement and branch instructions.
- *
- * They are used in pairs, with floop, floopnez or floopgtz
- * at the beginning of the loop, and floopend at the end.
- *
- * Each pair of loop macro calls must be given the loop count
- * address register and a unique label for that loop.
- *
- * Example:
- *
- * movi a3, 16 // loop 16 times
- * floop a3, myloop1
- * :
- * bnez a7, end1 // exit loop if a7 != 0
- * :
- * floopend a3, myloop1
- * end1:
- *
- * Like the LOOP instructions, these macros cannot be
- * nested, must include at least one instruction,
- * cannot call functions inside the loop, etc.
- * The loop can be exited by jumping to the instruction
- * following floopend (or elsewhere outside the loop),
- * or continued by jumping to a NOP instruction placed
- * immediately before floopend.
- *
- * Unlike LOOP instructions, the register passed to floop*
- * cannot be used inside the loop, because it is used as
- * the loop counter if the Loops option is not configured.
- * And its value is undefined after exiting the loop.
- * And because the loop counter register is active inside
- * the loop, you can't easily use this construct to loop
- * across a register file using ROTW as you might with LOOP
- * instructions, unless you copy the loop register along.
- */
-
- /* Named label version of the macros: */
-
- .macro floop ar, endlabel
- floop_ \ar, .Lfloopstart_\endlabel, .Lfloopend_\endlabel
- .endm
-
- .macro floopnez ar, endlabel
- floopnez_ \ar, .Lfloopstart_\endlabel, .Lfloopend_\endlabel
- .endm
-
- .macro floopgtz ar, endlabel
- floopgtz_ \ar, .Lfloopstart_\endlabel, .Lfloopend_\endlabel
- .endm
-
- .macro floopend ar, endlabel
- floopend_ \ar, .Lfloopstart_\endlabel, .Lfloopend_\endlabel
- .endm
-
- /* Numbered local label version of the macros: */
-#if 0 /*UNTESTED*/
- .macro floop89 ar
- floop_ \ar, 8, 9f
- .endm
-
- .macro floopnez89 ar
- floopnez_ \ar, 8, 9f
- .endm
-
- .macro floopgtz89 ar
- floopgtz_ \ar, 8, 9f
- .endm
-
- .macro floopend89 ar
- floopend_ \ar, 8b, 9
- .endm
-#endif /*0*/
-
- /* Underlying version of the macros: */
-
- .macro floop_ ar, startlabel, endlabelref
- .ifdef _infloop_
- .if _infloop_
- .err // Error: floop cannot be nested
- .endif
- .endif
- .set _infloop_, 1
-#if XCHAL_HAVE_LOOPS
- loop \ar, \endlabelref
-#else /* XCHAL_HAVE_LOOPS */
-\startlabel:
- addi \ar, \ar, -1
-#endif /* XCHAL_HAVE_LOOPS */
- .endm // floop_
-
- .macro floopnez_ ar, startlabel, endlabelref
- .ifdef _infloop_
- .if _infloop_
- .err // Error: floopnez cannot be nested
- .endif
- .endif
- .set _infloop_, 1
-#if XCHAL_HAVE_LOOPS
- loopnez \ar, \endlabelref
-#else /* XCHAL_HAVE_LOOPS */
- beqz \ar, \endlabelref
-\startlabel:
- addi \ar, \ar, -1
-#endif /* XCHAL_HAVE_LOOPS */
- .endm // floopnez_
-
- .macro floopgtz_ ar, startlabel, endlabelref
- .ifdef _infloop_
- .if _infloop_
- .err // Error: floopgtz cannot be nested
- .endif
- .endif
- .set _infloop_, 1
-#if XCHAL_HAVE_LOOPS
- loopgtz \ar, \endlabelref
-#else /* XCHAL_HAVE_LOOPS */
- bltz \ar, \endlabelref
- beqz \ar, \endlabelref
-\startlabel:
- addi \ar, \ar, -1
-#endif /* XCHAL_HAVE_LOOPS */
- .endm // floopgtz_
-
-
- .macro floopend_ ar, startlabelref, endlabel
- .ifndef _infloop_
- .err // Error: floopend without matching floopXXX
- .endif
- .ifeq _infloop_
- .err // Error: floopend without matching floopXXX
- .endif
- .set _infloop_, 0
-#if ! XCHAL_HAVE_LOOPS
- bnez \ar, \startlabelref
-#endif /* XCHAL_HAVE_LOOPS */
-\endlabel:
- .endm // floopend_
-
-/*----------------------------------------------------------------------
- * crsil -- conditional RSIL (read/set interrupt level)
- *
- * Executes the RSIL instruction if it exists, else just reads PS.
- * The RSIL instruction does not exist in the new exception architecture
- * if the interrupt option is not selected.
- */
-
- .macro crsil ar, newlevel
-#if XCHAL_HAVE_OLD_EXC_ARCH || XCHAL_HAVE_INTERRUPTS
- rsil \ar, \newlevel
-#else
- rsr \ar, PS
-#endif
- .endm // crsil
-
-/*----------------------------------------------------------------------
- * window_spill{4,8,12}
- *
- * These macros spill callers' register windows to the stack.
- * They work for both privileged and non-privileged tasks.
- * Must be called from a windowed ABI context, eg. within
- * a windowed ABI function (ie. valid stack frame, window
- * exceptions enabled, not in exception mode, etc).
- *
- * This macro requires a single invocation of the window_spill_common
- * macro in the same assembly unit and section.
- *
- * Note that using window_spill{4,8,12} macros is more efficient
- * than calling a function implemented using window_spill_function,
- * because the latter needs extra code to figure out the size of
- * the call to the spilling function.
- *
- * Example usage:
- *
- * .text
- * .align 4
- * .global some_function
- * .type some_function,@function
- * some_function:
- * entry a1, 16
- * :
- * :
- *
- * window_spill4 // spill windows of some_function's callers; preserves a0..a3 only;
- * // to use window_spill{8,12} in this example function we'd have
- * // to increase space allocated by the entry instruction, because
- * // 16 bytes only allows call4; 32 or 48 bytes (+locals) are needed
- * // for call8/window_spill8 or call12/window_spill12 respectively.
- * :
- *
- * retw
- *
- * window_spill_common // instantiates code used by window_spill4
- *
- *
- * On entry:
- * none (if window_spill4)
- * stack frame has enough space allocated for call8 (if window_spill8)
- * stack frame has enough space allocated for call12 (if window_spill12)
- * On exit:
- * a4..a15 clobbered (if window_spill4)
- * a8..a15 clobbered (if window_spill8)
- * a12..a15 clobbered (if window_spill12)
- * no caller windows are in live registers
- */
-
- .macro window_spill4
-#if XCHAL_HAVE_WINDOWED
-# if XCHAL_NUM_AREGS == 16
- movi a15, 0 // for 16-register files, no need to call to reach the end
-# elif XCHAL_NUM_AREGS == 32
- call4 .L__wdwspill_assist28 // call deep enough to clear out any live callers
-# elif XCHAL_NUM_AREGS == 64
- call4 .L__wdwspill_assist60 // call deep enough to clear out any live callers
-# endif
-#endif
- .endm // window_spill4
-
- .macro window_spill8
-#if XCHAL_HAVE_WINDOWED
-# if XCHAL_NUM_AREGS == 16
- movi a15, 0 // for 16-register files, no need to call to reach the end
-# elif XCHAL_NUM_AREGS == 32
- call8 .L__wdwspill_assist24 // call deep enough to clear out any live callers
-# elif XCHAL_NUM_AREGS == 64
- call8 .L__wdwspill_assist56 // call deep enough to clear out any live callers
-# endif
-#endif
- .endm // window_spill8
-
- .macro window_spill12
-#if XCHAL_HAVE_WINDOWED
-# if XCHAL_NUM_AREGS == 16
- movi a15, 0 // for 16-register files, no need to call to reach the end
-# elif XCHAL_NUM_AREGS == 32
- call12 .L__wdwspill_assist20 // call deep enough to clear out any live callers
-# elif XCHAL_NUM_AREGS == 64
- call12 .L__wdwspill_assist52 // call deep enough to clear out any live callers
-# endif
-#endif
- .endm // window_spill12
-
-/*----------------------------------------------------------------------
- * window_spill_function
- *
- * This macro outputs a function that will spill its caller's callers'
- * register windows to the stack. Eg. it could be used to implement
- * a version of xthal_window_spill() that works in non-privileged tasks.
- * This works for both privileged and non-privileged tasks.
- *
- * Typical usage:
- *
- * .text
- * .align 4
- * .global my_spill_function
- * .type my_spill_function,@function
- * my_spill_function:
- * window_spill_function
- *
- * On entry to resulting function:
- * none
- * On exit from resulting function:
- * none (no caller windows are in live registers)
- */
-
- .macro window_spill_function
-#if XCHAL_HAVE_WINDOWED
-# if XCHAL_NUM_AREGS == 32
- entry sp, 48
- bbci.l a0, 31, 1f // branch if called with call4
- bbsi.l a0, 30, 2f // branch if called with call12
- call8 .L__wdwspill_assist16 // called with call8, only need another 8
- retw
-1: call12 .L__wdwspill_assist16 // called with call4, only need another 12
- retw
-2: call4 .L__wdwspill_assist16 // called with call12, only need another 4
- retw
-# elif XCHAL_NUM_AREGS == 64
- entry sp, 48
- bbci.l a0, 31, 1f // branch if called with call4
- bbsi.l a0, 30, 2f // branch if called with call12
- call4 .L__wdwspill_assist52 // called with call8, only need a call4
- retw
-1: call8 .L__wdwspill_assist52 // called with call4, only need a call8
- retw
-2: call12 .L__wdwspill_assist40 // called with call12, can skip a call12
- retw
-# elif XCHAL_NUM_AREGS == 16
- entry sp, 16
- bbci.l a0, 31, 1f // branch if called with call4
- bbsi.l a0, 30, 2f // branch if called with call12
- movi a7, 0 // called with call8
- retw
-1: movi a11, 0 // called with call4
-2: retw // if called with call12, everything already spilled
-
-// movi a15, 0 // trick to spill all but the direct caller
-// j 1f
-// // The entry instruction is magical in the assembler (gets auto-aligned)
-// // so we have to jump to it to avoid falling through the padding.
-// // We need entry/retw to know where to return.
-//1: entry sp, 16
-// retw
-# else
-# error "unrecognized address register file size"
-# endif
-#endif /* XCHAL_HAVE_WINDOWED */
- window_spill_common
- .endm // window_spill_function
-
-/*----------------------------------------------------------------------
- * window_spill_common
- *
- * Common code used by any number of invocations of the window_spill##
- * and window_spill_function macros.
- *
- * Must be instantiated exactly once within a given assembly unit,
- * within call/j range of and same section as window_spill##
- * macro invocations for that assembly unit.
- * (Is automatically instantiated by the window_spill_function macro.)
- */
-
- .macro window_spill_common
-#if XCHAL_HAVE_WINDOWED && (XCHAL_NUM_AREGS == 32 || XCHAL_NUM_AREGS == 64)
- .ifndef .L__wdwspill_defined
-# if XCHAL_NUM_AREGS >= 64
-.L__wdwspill_assist60:
- entry sp, 32
- call8 .L__wdwspill_assist52
- retw
-.L__wdwspill_assist56:
- entry sp, 16
- call4 .L__wdwspill_assist52
- retw
-.L__wdwspill_assist52:
- entry sp, 48
- call12 .L__wdwspill_assist40
- retw
-.L__wdwspill_assist40:
- entry sp, 48
- call12 .L__wdwspill_assist28
- retw
-# endif
-.L__wdwspill_assist28:
- entry sp, 48
- call12 .L__wdwspill_assist16
- retw
-.L__wdwspill_assist24:
- entry sp, 32
- call8 .L__wdwspill_assist16
- retw
-.L__wdwspill_assist20:
- entry sp, 16
- call4 .L__wdwspill_assist16
- retw
-.L__wdwspill_assist16:
- entry sp, 16
- movi a15, 0
- retw
- .set .L__wdwspill_defined, 1
- .endif
-#endif /* XCHAL_HAVE_WINDOWED with 32 or 64 aregs */
- .endm // window_spill_common
-
-/*----------------------------------------------------------------------
- * beqi32
- *
- * macro implements version of beqi for arbitrary 32-bit immidiate value
- *
- * beqi32 ax, ay, imm32, label
- *
- * Compares value in register ax with imm32 value and jumps to label if
- * equal. Clobberes register ay if needed
- *
- */
- .macro beqi32 ax, ay, imm, label
- .ifeq ((\imm-1) & ~7) // 1..8 ?
- beqi \ax, \imm, \label
- .else
- .ifeq (\imm+1) // -1 ?
- beqi \ax, \imm, \label
- .else
- .ifeq (\imm) // 0 ?
- beqz \ax, \label
- .else
- // We could also handle immediates 10,12,16,32,64,128,256
- // but it would be a long macro...
- movi \ay, \imm
- beq \ax, \ay, \label
- .endif
- .endif
- .endif
- .endm // beqi32
-
-#endif /*XTENSA_COREASM_H*/
-
+++ /dev/null
-#ifndef XTENSA_COREBITS_H
-#define XTENSA_COREBITS_H
-
-/*
- * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
- *
- * xtensa/corebits.h - Xtensa Special Register field positions and masks.
- *
- * (In previous releases, these were defined in specreg.h, a generated file.
- * This file is not generated, i.e. it is processor configuration independent.)
- */
-
-
-/* EXCCAUSE register fields: */
-#define EXCCAUSE_EXCCAUSE_SHIFT 0
-#define EXCCAUSE_EXCCAUSE_MASK 0x3F
-/* Exception causes (mostly incomplete!): */
-#define EXCCAUSE_ILLEGAL 0
-#define EXCCAUSE_SYSCALL 1
-#define EXCCAUSE_IFETCHERROR 2
-#define EXCCAUSE_LOADSTOREERROR 3
-#define EXCCAUSE_LEVEL1INTERRUPT 4
-#define EXCCAUSE_ALLOCA 5
-
-/* PS register fields: */
-#define PS_WOE_SHIFT 18
-#define PS_WOE_MASK 0x00040000
-#define PS_WOE PS_WOE_MASK
-#define PS_CALLINC_SHIFT 16
-#define PS_CALLINC_MASK 0x00030000
-#define PS_CALLINC(n) (((n)&3)<<PS_CALLINC_SHIFT) /* n = 0..3 */
-#define PS_OWB_SHIFT 8
-#define PS_OWB_MASK 0x00000F00
-#define PS_OWB(n) (((n)&15)<<PS_OWB_SHIFT) /* n = 0..15 (or 0..7) */
-#define PS_RING_SHIFT 6
-#define PS_RING_MASK 0x000000C0
-#define PS_RING(n) (((n)&3)<<PS_RING_SHIFT) /* n = 0..3 */
-#define PS_UM_SHIFT 5
-#define PS_UM_MASK 0x00000020
-#define PS_UM PS_UM_MASK
-#define PS_EXCM_SHIFT 4
-#define PS_EXCM_MASK 0x00000010
-#define PS_EXCM PS_EXCM_MASK
-#define PS_INTLEVEL_SHIFT 0
-#define PS_INTLEVEL_MASK 0x0000000F
-#define PS_INTLEVEL(n) ((n)&PS_INTLEVEL_MASK) /* n = 0..15 */
-/* Backward compatibility (deprecated): */
-#define PS_PROGSTACK_SHIFT PS_UM_SHIFT
-#define PS_PROGSTACK_MASK PS_UM_MASK
-#define PS_PROG_SHIFT PS_UM_SHIFT
-#define PS_PROG_MASK PS_UM_MASK
-#define PS_PROG PS_UM
-
-/* DBREAKCn register fields: */
-#define DBREAKC_MASK_SHIFT 0
-#define DBREAKC_MASK_MASK 0x0000003F
-#define DBREAKC_LOADBREAK_SHIFT 30
-#define DBREAKC_LOADBREAK_MASK 0x40000000
-#define DBREAKC_STOREBREAK_SHIFT 31
-#define DBREAKC_STOREBREAK_MASK 0x80000000
-
-/* DEBUGCAUSE register fields: */
-#define DEBUGCAUSE_DEBUGINT_SHIFT 5
-#define DEBUGCAUSE_DEBUGINT_MASK 0x20 /* debug interrupt */
-#define DEBUGCAUSE_BREAKN_SHIFT 4
-#define DEBUGCAUSE_BREAKN_MASK 0x10 /* BREAK.N instruction */
-#define DEBUGCAUSE_BREAK_SHIFT 3
-#define DEBUGCAUSE_BREAK_MASK 0x08 /* BREAK instruction */
-#define DEBUGCAUSE_DBREAK_SHIFT 2
-#define DEBUGCAUSE_DBREAK_MASK 0x04 /* DBREAK match */
-#define DEBUGCAUSE_IBREAK_SHIFT 1
-#define DEBUGCAUSE_IBREAK_MASK 0x02 /* IBREAK match */
-#define DEBUGCAUSE_ICOUNT_SHIFT 0
-#define DEBUGCAUSE_ICOUNT_MASK 0x01 /* ICOUNT would increment to zero */
-
-#endif /*XTENSA_COREBITS_H*/
-
+++ /dev/null
-#ifndef XTENSA_HAL_H
-#define XTENSA_HAL_H
-
-/*
- * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
- *
- * include/asm-xtensa/xtensa/hal.h -- contains a definition of the
- * Core HAL interface.
- *
- * All definitions in this header file are independent of any specific
- * Xtensa processor configuration. Thus an OS or other software can
- * include this header file and be compiled into configuration-
- * independent objects that can be distributed and eventually linked
- * to the HAL library (libhal.a) to create a configuration-specific
- * final executable.
- *
- * Certain definitions, however, are release-specific -- such as the
- * XTHAL_RELEASE_xxx macros (or additions made in later releases).
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2002 Tensilica Inc.
- */
-
-
-/*----------------------------------------------------------------------
- Constant Definitions
- (shared with assembly)
- ----------------------------------------------------------------------*/
-
-/* Software release information (not configuration-specific!): */
-#define XTHAL_RELEASE_MAJOR 1050
-#define XTHAL_RELEASE_MINOR 0
-#define XTHAL_RELEASE_NAME "T1050.0-2002-08-06-eng0"
-#define XTHAL_RELEASE_INTERNAL "2002-08-06-eng0"
-#define XTHAL_REL_T1050 1
-#define XTHAL_REL_T1050_0 1
-#define XTHAL_REL_T1050_0_2002 1
-#define XTHAL_REL_T1050_0_2002_08 1
-#define XTHAL_REL_T1050_0_2002_08_06 1
-#define XTHAL_REL_T1050_0_2002_08_06_ENG0 1
-
-/* HAL version numbers (these names are for backward compatibility): */
-#define XTHAL_MAJOR_REV XTHAL_RELEASE_MAJOR
-#define XTHAL_MINOR_REV XTHAL_RELEASE_MINOR
-/*
- * A bit of software release history on values of XTHAL_{MAJOR,MINOR}_REV:
- *
- * Release MAJOR MINOR Comment
- * ======= ===== ===== =======
- * T1015.n n/a n/a (HAL not yet available)
- * T1020.{0,1,2} 0 1 (HAL beta)
- * T1020.{3,4} 0 2 First release.
- * T1020.n (n>4) 0 2 or >3 (TBD)
- * T1030.0 0 1 (HAL beta)
- * T1030.{1,2} 0 3 Equivalent to first release.
- * T1030.n (n>=3) 0 >= 3 (TBD)
- * T1040.n 1040 n Full CHAL available from T1040.2
- * T1050.n 1050 n Current release.
- *
- *
- * Note: there is a distinction between the software release with
- * which something is compiled (accessible using XTHAL_RELEASE_* macros)
- * and the software release with which the HAL library was compiled
- * (accessible using Xthal_release_* global variables). This
- * distinction is particularly relevant for vendors that distribute
- * configuration-independent binaries (eg. an OS), where their customer
- * might link it with a HAL of a different Xtensa software release.
- * In this case, it may be appropriate for the OS to verify at run-time
- * whether XTHAL_RELEASE_* and Xthal_release_* are compatible.
- * [Guidelines as to which release is compatible with which are not
- * currently provided explicitly, but might be inferred from reading
- * OSKit documentation for all releases -- compatibility is also highly
- * dependent on which HAL features are used. Each release is usually
- * backward compatible, with very few exceptions if any.]
- *
- * Notes:
- * Tornado 2.0 supported in T1020.3+, T1030.1+, and T1040.{0,1} only.
- * Tornado 2.0.2 supported in T1040.2+, and T1050.
- * Compile-time HAL port of NucleusPlus supported by T1040.2+ and T1050.
- */
-
-
-/*
- * Architectural limits, independent of configuration.
- * Note that these are ISA-defined limits, not micro-architecture implementation
- * limits enforced by the Xtensa Processor Generator (which may be stricter than
- * these below).
- */
-#define XTHAL_MAX_CPS 8 /* max number of coprocessors (0..7) */
-#define XTHAL_MAX_INTERRUPTS 32 /* max number of interrupts (0..31) */
-#define XTHAL_MAX_INTLEVELS 16 /* max number of interrupt levels (0..15) */
- /* (as of T1040, implementation limit is 7: 0..6) */
-#define XTHAL_MAX_TIMERS 4 /* max number of timers (CCOMPARE0..CCOMPARE3) */
- /* (as of T1040, implementation limit is 3: 0..2) */
-
-/* Misc: */
-#define XTHAL_LITTLEENDIAN 0
-#define XTHAL_BIGENDIAN 1
-
-
-/* Interrupt types: */
-#define XTHAL_INTTYPE_UNCONFIGURED 0
-#define XTHAL_INTTYPE_SOFTWARE 1
-#define XTHAL_INTTYPE_EXTERN_EDGE 2
-#define XTHAL_INTTYPE_EXTERN_LEVEL 3
-#define XTHAL_INTTYPE_TIMER 4
-#define XTHAL_INTTYPE_NMI 5
-#define XTHAL_MAX_INTTYPES 6 /* number of interrupt types */
-
-/* Timer related: */
-#define XTHAL_TIMER_UNCONFIGURED -1 /* Xthal_timer_interrupt[] value for non-existent timers */
-#define XTHAL_TIMER_UNASSIGNED XTHAL_TIMER_UNCONFIGURED /* (for backwards compatibility only) */
-
-
-/* Access Mode bits (tentative): */ /* bit abbr unit short_name PPC equ - Description */
-#define XTHAL_AMB_EXCEPTION 0 /* 001 E EX fls: EXception none - generate exception on any access (aka "illegal") */
-#define XTHAL_AMB_HITCACHE 1 /* 002 C CH fls: use Cache on Hit ~(I CI) - use cache on hit -- way from tag match [or H HC, or U UC] (ISA: same, except for Isolate case) */
-#define XTHAL_AMB_ALLOCATE 2 /* 004 A AL fl?: ALlocate none - refill cache on miss -- way from LRU [or F FI fill] (ISA: Read/Write Miss Refill) */
-#define XTHAL_AMB_WRITETHRU 3 /* 008 W WT --s: WriteThrough W WT - store immediately to memory (ISA: same) */
-#define XTHAL_AMB_ISOLATE 4 /* 010 I IS fls: ISolate none - use cache regardless of hit-vs-miss -- way from vaddr (ISA: use-cache-on-miss+hit) */
-#define XTHAL_AMB_GUARD 5 /* 020 G GU ?l?: GUard G * - non-speculative; spec/replay refs not permitted */
-#if 0
-#define XTHAL_AMB_ORDERED x /* 000 O OR fls: ORdered G * - mem accesses cannot be out of order */
-#define XTHAL_AMB_FUSEWRITES x /* 000 F FW --s: FuseWrites none - allow combining/merging multiple writes (to same datapath data unit) into one (implied by writeback) */
-#define XTHAL_AMB_COHERENT x /* 000 M MC fl?: Mem/MP Coherent M - on reads, other CPUs/bus-masters may need to supply data */
-#define XTHAL_AMB_TRUSTED x /* 000 T TR ?l?: TRusted none - memory will not bus error (if it does, handle as fatal imprecise interrupt) */
-#define XTHAL_AMB_PREFETCH x /* 000 P PR fl?: PRefetch none - on refill, read line+1 into prefetch buffers */
-#define XTHAL_AMB_STREAM x /* 000 S ST ???: STreaming none - access one of N stream buffers */
-#endif /*0*/
-
-#define XTHAL_AM_EXCEPTION (1<<XTHAL_AMB_EXCEPTION)
-#define XTHAL_AM_HITCACHE (1<<XTHAL_AMB_HITCACHE)
-#define XTHAL_AM_ALLOCATE (1<<XTHAL_AMB_ALLOCATE)
-#define XTHAL_AM_WRITETHRU (1<<XTHAL_AMB_WRITETHRU)
-#define XTHAL_AM_ISOLATE (1<<XTHAL_AMB_ISOLATE)
-#define XTHAL_AM_GUARD (1<<XTHAL_AMB_GUARD)
-#if 0
-#define XTHAL_AM_ORDERED (1<<XTHAL_AMB_ORDERED)
-#define XTHAL_AM_FUSEWRITES (1<<XTHAL_AMB_FUSEWRITES)
-#define XTHAL_AM_COHERENT (1<<XTHAL_AMB_COHERENT)
-#define XTHAL_AM_TRUSTED (1<<XTHAL_AMB_TRUSTED)
-#define XTHAL_AM_PREFETCH (1<<XTHAL_AMB_PREFETCH)
-#define XTHAL_AM_STREAM (1<<XTHAL_AMB_STREAM)
-#endif /*0*/
-
-/*
- * Allowed Access Modes (bit combinations).
- *
- * Columns are:
- * "FOGIWACE"
- * Access mode bits (see XTHAL_AMB_xxx above).
- * <letter> = bit is set
- * '-' = bit is clear
- * '.' = bit is irrelevant / don't care, as follows:
- * E=1 makes all others irrelevant
- * W,F relevant only for stores
- * "2345"
- * Indicates which Xtensa releases support the corresponding
- * access mode. Releases for each character column are:
- * 2 = prior to T1020.2: T1015 (V1.5), T1020.0, T1020.1
- * 3 = T1020.2 and later: T1020.2+, T1030
- * 4 = T1040
- * 5 = T1050 (maybe)
- * And the character column contents are:
- * <number> = support by release(s)
- * "." = unsupported by release(s)
- * "?" = support unknown
- */
- /* FOGIWACE 2345 */
-/* For instruction fetch: */
-#define XTHAL_FAM_EXCEPTION 0x001 /* .......E 2345 exception */
-#define XTHAL_FAM_ISOLATE 0x012 /* .--I.-C- .... isolate */
-#define XTHAL_FAM_BYPASS 0x000 /* .---.--- 2345 bypass */
-#define XTHAL_FAM_NACACHED 0x002 /* .---.-C- .... cached no-allocate (frozen) */
-#define XTHAL_FAM_CACHED 0x006 /* .---.AC- 2345 cached */
-/* For data load: */
-#define XTHAL_LAM_EXCEPTION 0x001 /* .......E 2345 exception */
-#define XTHAL_LAM_ISOLATE 0x012 /* .--I.-C- 2345 isolate */
-#define XTHAL_LAM_BYPASS 0x000 /* .O--.--- 2... bypass speculative */
-#define XTHAL_LAM_BYPASSG 0x020 /* .OG-.--- .345 bypass guarded */
-#define XTHAL_LAM_NACACHED 0x002 /* .O--.-C- 2... cached no-allocate speculative */
-#define XTHAL_LAM_NACACHEDG 0x022 /* .OG-.-C- .345 cached no-allocate guarded */
-#define XTHAL_LAM_CACHED 0x006 /* .---.AC- 2345 cached speculative */
-#define XTHAL_LAM_CACHEDG 0x026 /* .?G-.AC- .... cached guarded */
-/* For data store: */
-#define XTHAL_SAM_EXCEPTION 0x001 /* .......E 2345 exception */
-#define XTHAL_SAM_ISOLATE 0x032 /* .-GI--C- 2345 isolate */
-#define XTHAL_SAM_BYPASS 0x028 /* -OG-W--- 2345 bypass */
-/*efine XTHAL_SAM_BYPASSF 0x028*/ /* F-G-W--- ...? bypass write-combined */
-#define XTHAL_SAM_WRITETHRU 0x02A /* -OG-W-C- 234? writethrough */
-/*efine XTHAL_SAM_WRITETHRUF 0x02A*/ /* F-G-W-C- ...5 writethrough write-combined */
-#define XTHAL_SAM_WRITEALLOC 0x02E /* -OG-WAC- ...? writethrough-allocate */
-/*efine XTHAL_SAM_WRITEALLOCF 0x02E*/ /* F-G-WAC- ...? writethrough-allocate write-combined */
-#define XTHAL_SAM_WRITEBACK 0x026 /* F-G--AC- ...5 writeback */
-
-#if 0
-/*
- Cache attribute encoding for CACHEATTR (per ISA):
- (Note: if this differs from ISA Ref Manual, ISA has precedence)
-
- Inst-fetches Loads Stores
- ------------- ------------ -------------
-0x0 FCA_EXCEPTION ?LCA_NACACHED_G* SCA_WRITETHRU "uncached"
-0x1 FCA_CACHED LCA_CACHED SCA_WRITETHRU cached
-0x2 FCA_BYPASS LCA_BYPASS_G* SCA_BYPASS bypass
-0x3 FCA_CACHED LCA_CACHED SCA_WRITEALLOCF write-allocate
- or LCA_EXCEPTION SCA_EXCEPTION (if unimplemented)
-0x4 FCA_CACHED LCA_CACHED SCA_WRITEBACK write-back
- or LCA_EXCEPTION SCA_EXCEPTION (if unimplemented)
-0x5..D FCA_EXCEPTION LCA_EXCEPTION SCA_EXCEPTION (reserved)
-0xE FCA_EXCEPTION LCA_ISOLATE SCA_ISOLATE isolate
-0xF FCA_EXCEPTION LCA_EXCEPTION SCA_EXCEPTION illegal
- * Prior to T1020.2?, guard feature not supported, this defaulted to speculative (no _G)
-*/
-#endif /*0*/
-
-
-#if !defined(__ASSEMBLY__) && !defined(_NOCLANGUAGE)
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*----------------------------------------------------------------------
- HAL
- ----------------------------------------------------------------------*/
-
-/* Constant to be checked in build = (XTHAL_MAJOR_REV<<16)|XTHAL_MINOR_REV */
-extern const unsigned int Xthal_rev_no;
-
-
-/*----------------------------------------------------------------------
- Processor State
- ----------------------------------------------------------------------*/
-/* save & restore the extra processor state */
-extern void xthal_save_extra(void *base);
-extern void xthal_restore_extra(void *base);
-
-extern void xthal_save_cpregs(void *base, int);
-extern void xthal_restore_cpregs(void *base, int);
-
-/*extern void xthal_save_all_extra(void *base);*/
-/*extern void xthal_restore_all_extra(void *base);*/
-
-/* space for processor state */
-extern const unsigned int Xthal_extra_size;
-extern const unsigned int Xthal_extra_align;
-/* space for TIE register files */
-extern const unsigned int Xthal_cpregs_size[XTHAL_MAX_CPS];
-extern const unsigned int Xthal_cpregs_align[XTHAL_MAX_CPS];
-
-/* total of space for the processor state (for Tor2) */
-extern const unsigned int Xthal_all_extra_size;
-extern const unsigned int Xthal_all_extra_align;
-
-/* initialize the extra processor */
-/*extern void xthal_init_extra(void);*/
-/* initialize the TIE coprocessor */
-/*extern void xthal_init_cp(int);*/
-
-/* initialize the extra processor */
-extern void xthal_init_mem_extra(void *);
-/* initialize the TIE coprocessor */
-extern void xthal_init_mem_cp(void *, int);
-
-/* validate & invalidate the TIE register file */
-extern void xthal_validate_cp(int);
-extern void xthal_invalidate_cp(int);
-
-/* the number of TIE coprocessors contiguous from zero (for Tor2) */
-extern const unsigned int Xthal_num_coprocessors;
-
-/* actual number of coprocessors */
-extern const unsigned char Xthal_cp_num;
-/* index of highest numbered coprocessor, plus one */
-extern const unsigned char Xthal_cp_max;
-/* index of highest allowed coprocessor number, per cfg, plus one */
-/*extern const unsigned char Xthal_cp_maxcfg;*/
-/* bitmask of which coprocessors are present */
-extern const unsigned int Xthal_cp_mask;
-
-/* read and write cpenable register */
-extern void xthal_set_cpenable(unsigned);
-extern unsigned xthal_get_cpenable(void);
-
-/* read & write extra state register */
-/*extern int xthal_read_extra(void *base, unsigned reg, unsigned *value);*/
-/*extern int xthal_write_extra(void *base, unsigned reg, unsigned value);*/
-
-/* read & write a TIE coprocessor register */
-/*extern int xthal_read_cpreg(void *base, int cp, unsigned reg, unsigned *value);*/
-/*extern int xthal_write_cpreg(void *base, int cp, unsigned reg, unsigned value);*/
-
-/* return coprocessor number based on register */
-/*extern int xthal_which_cp(unsigned reg);*/
-
-/*----------------------------------------------------------------------
- Interrupts
- ----------------------------------------------------------------------*/
-
-/* the number of interrupt levels */
-extern const unsigned char Xthal_num_intlevels;
-/* the number of interrupts */
-extern const unsigned char Xthal_num_interrupts;
-
-/* mask for level of interrupts */
-extern const unsigned int Xthal_intlevel_mask[XTHAL_MAX_INTLEVELS];
-/* mask for level 0 to N interrupts */
-extern const unsigned int Xthal_intlevel_andbelow_mask[XTHAL_MAX_INTLEVELS];
-
-/* level of each interrupt */
-extern const unsigned char Xthal_intlevel[XTHAL_MAX_INTERRUPTS];
-
-/* type per interrupt */
-extern const unsigned char Xthal_inttype[XTHAL_MAX_INTERRUPTS];
-
-/* masks of each type of interrupt */
-extern const unsigned int Xthal_inttype_mask[XTHAL_MAX_INTTYPES];
-
-/* interrupt numbers assigned to each timer interrupt */
-extern const int Xthal_timer_interrupt[XTHAL_MAX_TIMERS];
-
-/*** Virtual interrupt prioritization: ***/
-
-/* Convert between interrupt levels (as per PS.INTLEVEL) and virtual interrupt priorities: */
-extern unsigned xthal_vpri_to_intlevel(unsigned vpri);
-extern unsigned xthal_intlevel_to_vpri(unsigned intlevel);
-
-/* Enables/disables given set (mask) of interrupts; returns previous enabled-mask of all ints: */
-extern unsigned xthal_int_enable(unsigned);
-extern unsigned xthal_int_disable(unsigned);
-
-/* Set/get virtual priority of an interrupt: */
-extern int xthal_set_int_vpri(int intnum, int vpri);
-extern int xthal_get_int_vpri(int intnum);
-
-/* Set/get interrupt lockout level for exclusive access to virtual priority data structures: */
-extern void xthal_set_vpri_locklevel(unsigned intlevel);
-extern unsigned xthal_get_vpri_locklevel(void);
-
-/* Set/get current virtual interrupt priority: */
-extern unsigned xthal_set_vpri(unsigned vpri);
-extern unsigned xthal_get_vpri(unsigned vpri);
-extern unsigned xthal_set_vpri_intlevel(unsigned intlevel);
-extern unsigned xthal_set_vpri_lock(void);
-
-
-
-/*----------------------------------------------------------------------
- Generic Interrupt Trampolining Support
- ----------------------------------------------------------------------*/
-
-typedef void (XtHalVoidFunc)(void);
-
-/*
- * Bitmask of interrupts currently trampolining down:
- */
-extern unsigned Xthal_tram_pending;
-
-/*
- * Bitmask of which interrupts currently trampolining down
- * synchronously are actually enabled; this bitmask is necessary
- * because INTENABLE cannot hold that state (sync-trampolining
- * interrupts must be kept disabled while trampolining);
- * in the current implementation, any bit set here is not set
- * in INTENABLE, and vice-versa; once a sync-trampoline is
- * handled (at level one), its enable bit must be moved from
- * here to INTENABLE:
- */
-extern unsigned Xthal_tram_enabled;
-
-/*
- * Bitmask of interrupts configured for sync trampolining:
- */
-extern unsigned Xthal_tram_sync;
-
-
-/* Trampoline support functions: */
-extern unsigned xthal_tram_pending_to_service( void );
-extern void xthal_tram_done( unsigned serviced_mask );
-extern int xthal_tram_set_sync( int intnum, int sync );
-extern XtHalVoidFunc* xthal_set_tram_trigger_func( XtHalVoidFunc *trigger_fn );
-
-/* INTENABLE,INTREAD,INTSET,INTCLEAR register access functions: */
-extern unsigned xthal_get_intenable( void );
-extern void xthal_set_intenable( unsigned );
-extern unsigned xthal_get_intread( void );
-extern void xthal_set_intset( unsigned );
-extern void xthal_set_intclear( unsigned );
-
-
-/*----------------------------------------------------------------------
- Register Windows
- ----------------------------------------------------------------------*/
-
-/* number of registers in register window */
-extern const unsigned int Xthal_num_aregs;
-extern const unsigned char Xthal_num_aregs_log2;
-
-/* This spill any live register windows (other than the caller's): */
-extern void xthal_window_spill( void );
-
-
-/*----------------------------------------------------------------------
- Cache
- ----------------------------------------------------------------------*/
-
-/* size of the cache lines in log2(bytes) */
-extern const unsigned char Xthal_icache_linewidth;
-extern const unsigned char Xthal_dcache_linewidth;
-/* size of the cache lines in bytes */
-extern const unsigned short Xthal_icache_linesize;
-extern const unsigned short Xthal_dcache_linesize;
-/* number of cache sets in log2(lines per way) */
-extern const unsigned char Xthal_icache_setwidth;
-extern const unsigned char Xthal_dcache_setwidth;
-/* cache set associativity (number of ways) */
-extern const unsigned int Xthal_icache_ways;
-extern const unsigned int Xthal_dcache_ways;
-/* size of the caches in bytes (ways * 2^(linewidth + setwidth)) */
-extern const unsigned int Xthal_icache_size;
-extern const unsigned int Xthal_dcache_size;
-/* cache features */
-extern const unsigned char Xthal_dcache_is_writeback;
-extern const unsigned char Xthal_icache_line_lockable;
-extern const unsigned char Xthal_dcache_line_lockable;
-
-/* cache attribute register control (used by other HAL routines) */
-extern unsigned xthal_get_cacheattr( void );
-extern unsigned xthal_get_icacheattr( void );
-extern unsigned xthal_get_dcacheattr( void );
-extern void xthal_set_cacheattr( unsigned );
-extern void xthal_set_icacheattr( unsigned );
-extern void xthal_set_dcacheattr( unsigned );
-
-/* initialize cache support (must be called once at startup, before all other cache calls) */
-/*extern void xthal_cache_startinit( void );*/
-/* reset caches */
-/*extern void xthal_icache_reset( void );*/
-/*extern void xthal_dcache_reset( void );*/
-/* enable caches */
-extern void xthal_icache_enable( void ); /* DEPRECATED */
-extern void xthal_dcache_enable( void ); /* DEPRECATED */
-/* disable caches */
-extern void xthal_icache_disable( void ); /* DEPRECATED */
-extern void xthal_dcache_disable( void ); /* DEPRECATED */
-
-/* invalidate the caches */
-extern void xthal_icache_all_invalidate( void );
-extern void xthal_dcache_all_invalidate( void );
-extern void xthal_icache_region_invalidate( void *addr, unsigned size );
-extern void xthal_dcache_region_invalidate( void *addr, unsigned size );
-extern void xthal_icache_line_invalidate(void *addr);
-extern void xthal_dcache_line_invalidate(void *addr);
-/* write dirty data back */
-extern void xthal_dcache_all_writeback( void );
-extern void xthal_dcache_region_writeback( void *addr, unsigned size );
-extern void xthal_dcache_line_writeback(void *addr);
-/* write dirty data back and invalidate */
-extern void xthal_dcache_all_writeback_inv( void );
-extern void xthal_dcache_region_writeback_inv( void *addr, unsigned size );
-extern void xthal_dcache_line_writeback_inv(void *addr);
-/* prefetch and lock specified memory range into cache */
-extern void xthal_icache_region_lock( void *addr, unsigned size );
-extern void xthal_dcache_region_lock( void *addr, unsigned size );
-extern void xthal_icache_line_lock(void *addr);
-extern void xthal_dcache_line_lock(void *addr);
-/* unlock from cache */
-extern void xthal_icache_all_unlock( void );
-extern void xthal_dcache_all_unlock( void );
-extern void xthal_icache_region_unlock( void *addr, unsigned size );
-extern void xthal_dcache_region_unlock( void *addr, unsigned size );
-extern void xthal_icache_line_unlock(void *addr);
-extern void xthal_dcache_line_unlock(void *addr);
-
-
-/* sync icache and memory */
-extern void xthal_icache_sync( void );
-/* sync dcache and memory */
-extern void xthal_dcache_sync( void );
-
-/*----------------------------------------------------------------------
- Debug
- ----------------------------------------------------------------------*/
-
-/* 1 if debug option configured, 0 if not: */
-extern const int Xthal_debug_configured;
-
-/* Number of instruction and data break registers: */
-extern const int Xthal_num_ibreak;
-extern const int Xthal_num_dbreak;
-
-/* Set (plant) and remove software breakpoint, both synchronizing cache: */
-extern unsigned int xthal_set_soft_break(void *addr);
-extern void xthal_remove_soft_break(void *addr, unsigned int);
-
-
-/*----------------------------------------------------------------------
- Disassembler
- ----------------------------------------------------------------------*/
-
-/* Max expected size of the return buffer for a disassembled instruction (hint only): */
-#define XTHAL_DISASM_BUFSIZE 80
-
-/* Disassembly option bits for selecting what to return: */
-#define XTHAL_DISASM_OPT_ADDR 0x0001 /* display address */
-#define XTHAL_DISASM_OPT_OPHEX 0x0002 /* display opcode bytes in hex */
-#define XTHAL_DISASM_OPT_OPCODE 0x0004 /* display opcode name (mnemonic) */
-#define XTHAL_DISASM_OPT_PARMS 0x0008 /* display parameters */
-#define XTHAL_DISASM_OPT_ALL 0x0FFF /* display everything */
-
-/* routine to get a string for the disassembled instruction */
-extern int xthal_disassemble( unsigned char *instr_buf, void *tgt_addr,
- char *buffer, unsigned buflen, unsigned options );
-
-/* routine to get the size of the next instruction. Returns 0 for
- illegal instruction */
-extern int xthal_disassemble_size( unsigned char *instr_buf );
-
-
-/*----------------------------------------------------------------------
- Core Counter
- ----------------------------------------------------------------------*/
-
-/* counter info */
-extern const unsigned char Xthal_have_ccount; /* set if CCOUNT register present */
-extern const unsigned char Xthal_num_ccompare; /* number of CCOMPAREn registers */
-
-/* get CCOUNT register (if not present return 0) */
-extern unsigned xthal_get_ccount(void);
-
-/* set and get CCOMPAREn registers (if not present, get returns 0) */
-extern void xthal_set_ccompare(int, unsigned);
-extern unsigned xthal_get_ccompare(int);
-
-
-/*----------------------------------------------------------------------
- Instruction/Data RAM/ROM Access
- ----------------------------------------------------------------------*/
-
-extern void* xthal_memcpy(void *dst, const void *src, unsigned len);
-extern void* xthal_bcopy(const void *src, void *dst, unsigned len);
-
-/*----------------------------------------------------------------------
- MP Synchronization
- ----------------------------------------------------------------------*/
-extern int xthal_compare_and_set( int *addr, int test_val, int compare_val );
-extern unsigned xthal_get_prid( void );
-
-/*extern const char Xthal_have_s32c1i;*/
-extern const unsigned char Xthal_have_prid;
-
-
-/*----------------------------------------------------------------------
- Miscellaneous
- ----------------------------------------------------------------------*/
-
-extern const unsigned int Xthal_release_major;
-extern const unsigned int Xthal_release_minor;
-extern const char * const Xthal_release_name;
-extern const char * const Xthal_release_internal;
-
-extern const unsigned char Xthal_memory_order;
-extern const unsigned char Xthal_have_windowed;
-extern const unsigned char Xthal_have_density;
-extern const unsigned char Xthal_have_booleans;
-extern const unsigned char Xthal_have_loops;
-extern const unsigned char Xthal_have_nsa;
-extern const unsigned char Xthal_have_minmax;
-extern const unsigned char Xthal_have_sext;
-extern const unsigned char Xthal_have_clamps;
-extern const unsigned char Xthal_have_mac16;
-extern const unsigned char Xthal_have_mul16;
-extern const unsigned char Xthal_have_fp;
-extern const unsigned char Xthal_have_speculation;
-extern const unsigned char Xthal_have_exceptions;
-extern const unsigned char Xthal_xea_version;
-extern const unsigned char Xthal_have_interrupts;
-extern const unsigned char Xthal_have_highlevel_interrupts;
-extern const unsigned char Xthal_have_nmi;
-
-extern const unsigned short Xthal_num_writebuffer_entries;
-
-extern const unsigned int Xthal_build_unique_id;
-/* Release info for hardware targeted by software upgrades: */
-extern const unsigned int Xthal_hw_configid0;
-extern const unsigned int Xthal_hw_configid1;
-extern const unsigned int Xthal_hw_release_major;
-extern const unsigned int Xthal_hw_release_minor;
-extern const char * const Xthal_hw_release_name;
-extern const char * const Xthal_hw_release_internal;
-
-
-/* Internal memories... */
-
-extern const unsigned char Xthal_num_instrom;
-extern const unsigned char Xthal_num_instram;
-extern const unsigned char Xthal_num_datarom;
-extern const unsigned char Xthal_num_dataram;
-extern const unsigned char Xthal_num_xlmi;
-extern const unsigned int Xthal_instrom_vaddr[1];
-extern const unsigned int Xthal_instrom_paddr[1];
-extern const unsigned int Xthal_instrom_size [1];
-extern const unsigned int Xthal_instram_vaddr[1];
-extern const unsigned int Xthal_instram_paddr[1];
-extern const unsigned int Xthal_instram_size [1];
-extern const unsigned int Xthal_datarom_vaddr[1];
-extern const unsigned int Xthal_datarom_paddr[1];
-extern const unsigned int Xthal_datarom_size [1];
-extern const unsigned int Xthal_dataram_vaddr[1];
-extern const unsigned int Xthal_dataram_paddr[1];
-extern const unsigned int Xthal_dataram_size [1];
-extern const unsigned int Xthal_xlmi_vaddr[1];
-extern const unsigned int Xthal_xlmi_paddr[1];
-extern const unsigned int Xthal_xlmi_size [1];
-
-
-
-/*----------------------------------------------------------------------
- Memory Management Unit
- ----------------------------------------------------------------------*/
-
-extern const unsigned char Xthal_have_spanning_way;
-extern const unsigned char Xthal_have_identity_map;
-extern const unsigned char Xthal_have_mimic_cacheattr;
-extern const unsigned char Xthal_have_xlt_cacheattr;
-extern const unsigned char Xthal_have_cacheattr;
-extern const unsigned char Xthal_have_tlbs;
-
-extern const unsigned char Xthal_mmu_asid_bits; /* 0 .. 8 */
-extern const unsigned char Xthal_mmu_asid_kernel;
-extern const unsigned char Xthal_mmu_rings; /* 1 .. 4 (perhaps 0 if no MMU and/or no protection?) */
-extern const unsigned char Xthal_mmu_ring_bits;
-extern const unsigned char Xthal_mmu_sr_bits;
-extern const unsigned char Xthal_mmu_ca_bits;
-extern const unsigned int Xthal_mmu_max_pte_page_size;
-extern const unsigned int Xthal_mmu_min_pte_page_size;
-
-extern const unsigned char Xthal_itlb_way_bits;
-extern const unsigned char Xthal_itlb_ways;
-extern const unsigned char Xthal_itlb_arf_ways;
-extern const unsigned char Xthal_dtlb_way_bits;
-extern const unsigned char Xthal_dtlb_ways;
-extern const unsigned char Xthal_dtlb_arf_ways;
-
-/* Convert between virtual and physical addresses (through static maps only): */
-/*** WARNING: these two functions may go away in a future release; don't depend on them! ***/
-extern int xthal_static_v2p( unsigned vaddr, unsigned *paddrp );
-extern int xthal_static_p2v( unsigned paddr, unsigned *vaddrp, unsigned cached );
-
-#if 0
-/******************* EXPERIMENTAL AND TENTATIVE ONLY ********************/
-
-#define XTHAL_MMU_PAGESZ_COUNT_MAX 8 /* maximum number of different page sizes */
-extern const char Xthal_mmu_pagesz_count; /* 0 .. 8 number of different page sizes configured */
-
-/* Note: the following table doesn't necessarily have page sizes in increasing order: */
-extern const char Xthal_mmu_pagesz_log2[XTHAL_MMU_PAGESZ_COUNT_MAX]; /* 10 .. 28 (0 past count) */
-
-/* Sorted (increasing) table of page sizes, that indexes into the above table: */
-extern const char Xthal_mmu_pagesz_sorted[XTHAL_MMU_PAGESZ_COUNT_MAX]; /* 0 .. 7 (0 past count) */
-
-/*u32 Xthal_virtual_exceptions;*/ /* bitmask of which exceptions execute in virtual mode... */
-
-extern const char Xthal_mmu_pte_pagesz_log2_min; /* ?? minimum page size in PTEs */
-extern const char Xthal_mmu_pte_pagesz_log2_max; /* ?? maximum page size in PTEs */
-
-/* Cache Attribute Bits Implemented by the Cache (part of the cache abstraction) */
-extern const char Xthal_icache_fca_bits_implemented; /* ITLB/UTLB only! */
-extern const char Xthal_dcache_lca_bits_implemented; /* DTLB/UTLB only! */
-extern const char Xthal_dcache_sca_bits_implemented; /* DTLB/UTLB only! */
-
-/* Per TLB Parameters (Instruction, Data, Unified) */
-struct XtHalMmuTlb Xthal_itlb; /* description of MMU I-TLB generic features */
-struct XtHalMmuTlb Xthal_dtlb; /* description of MMU D-TLB generic features */
-struct XtHalMmuTlb Xthal_utlb; /* description of MMU U-TLB generic features */
-
-#define XTHAL_MMU_WAYS_MAX 8 /* maximum number of ways (associativities) for each TLB */
-
-/* Structure for common information described for each possible TLB (instruction, data and unified): */
-typedef struct XtHalMmuTlb {
- u8 va_bits; /* 32 (number of virtual address bits) */
- u8 pa_bits; /* 32 (number of physical address bits) */
- bool tlb_va_indexed; /* 1 (set if TLB is indexed by virtual address) */
- bool tlb_va_tagged; /* 0 (set if TLB is tagged by virtual address) */
- bool cache_va_indexed; /* 1 (set if cache is indexed by virtual address) */
- bool cache_va_tagged; /* 0 (set if cache is tagged by virtual address) */
- /*bool (whether page tables are traversed in vaddr sorted order, paddr sorted order, ...) */
- /*u8 (set of available page attribute bits, other than cache attribute bits defined above) */
- /*u32 (various masks for pages, MMU table/TLB entries, etc.) */
- u8 way_count; /* 0 .. 8 (number of ways, a.k.a. associativities, for this TLB) */
- XtHalMmuTlbWay * ways[XTHAL_MMU_WAYS_MAX]; /* pointers to per-way parms for each way */
-} XtHalMmuTlb;
-
-/* Per TLB Way (Per Associativity) Parameters */
-typedef struct XtHalMmuTlbWay {
- u32 index_count_log2; /* 0 .. 4 */
- u32 pagesz_mask; /* 0 .. 2^pagesz_count - 1 (each bit corresponds to a size */
- /* defined in the Xthal_mmu_pagesz_log2[] table) */
- u32 vpn_const_mask;
- u32 vpn_const_value;
- u64 ppn_const_mask; /* future may support pa_bits > 32 */
- u64 ppn_const_value;
- u32 ppn_id_mask; /* paddr bits taken directly from vaddr */
- bool backgnd_match; /* 0 or 1 */
- /* These are defined in terms of the XTHAL_CACHE_xxx bits: */
- u8 fca_const_mask; /* ITLB/UTLB only! */
- u8 fca_const_value; /* ITLB/UTLB only! */
- u8 lca_const_mask; /* DTLB/UTLB only! */
- u8 lca_const_value; /* DTLB/UTLB only! */
- u8 sca_const_mask; /* DTLB/UTLB only! */
- u8 sca_const_value; /* DTLB/UTLB only! */
- /* These define an encoding that map 5 bits in TLB and PTE entries to */
- /* 8 bits (FCA, ITLB), 16 bits (LCA+SCA, DTLB) or 24 bits (FCA+LCA+SCA, UTLB): */
- /* (they may be moved to struct XtHalMmuTlb) */
- u8 ca_bits; /* number of bits in TLB/PTE entries for cache attributes */
- u32 * ca_map; /* pointer to array of 2^ca_bits entries of FCA+LCA+SCA bits */
-} XtHalMmuTlbWay;
-
-/*
- * The way to determine whether protection support is present in core
- * is to [look at Xthal_mmu_rings ???].
- * Give info on memory requirements for MMU tables and other in-memory
- * data structures (globally, per task, base and per page, etc.) - whatever bounds can be calculated.
- */
-
-
-/* Default vectors: */
-xthal_immu_fetch_miss_vector
-xthal_dmmu_load_miss_vector
-xthal_dmmu_store_miss_vector
-
-/* Functions called when a fault is detected: */
-typedef void (XtHalMmuFaultFunc)( unsigned vaddr, ...context... );
-/* Or, */
-/* a? = vaddr */
-/* a? = context... */
-/* PS.xxx = xxx */
-XtHalMMuFaultFunc *Xthal_immu_fetch_fault_func;
-XtHalMMuFaultFunc *Xthal_dmmu_load_fault_func;
-XtHalMMuFaultFunc *Xthal_dmmu_store_fault_func;
-
-/* Default Handlers: */
-/* The user and/or kernel exception handlers may jump to these handlers to handle the relevant exceptions,
- * according to the value of EXCCAUSE. The exact register state on entry to these handlers is TBD. */
-/* When multiple TLB entries match (hit) on the same access: */
-xthal_immu_fetch_multihit_handler
-xthal_dmmu_load_multihit_handler
-xthal_dmmu_store_multihit_handler
-/* Protection violations according to cache attributes, and other cache attribute mismatches: */
-xthal_immu_fetch_attr_handler
-xthal_dmmu_load_attr_handler
-xthal_dmmu_store_attr_handler
-/* Protection violations due to insufficient ring level: */
-xthal_immu_fetch_priv_handler
-xthal_dmmu_load_priv_handler
-xthal_dmmu_store_priv_handler
-/* Alignment exception handlers (if supported by the particular Xtensa MMU configuration): */
-xthal_dmmu_load_align_handler
-xthal_dmmu_store_align_handler
-
-/* Or, alternatively, the OS user and/or kernel exception handlers may simply jump to the
- * following entry points which will handle any values of EXCCAUSE not handled by the OS: */
-xthal_user_exc_default_handler
-xthal_kernel_exc_default_handler
-
-#endif /*0*/
-
-#ifdef INCLUDE_DEPRECATED_HAL_CODE
-extern const unsigned char Xthal_have_old_exc_arch;
-extern const unsigned char Xthal_have_mmu;
-extern const unsigned int Xthal_num_regs;
-extern const unsigned char Xthal_num_iroms;
-extern const unsigned char Xthal_num_irams;
-extern const unsigned char Xthal_num_droms;
-extern const unsigned char Xthal_num_drams;
-extern const unsigned int Xthal_configid0;
-extern const unsigned int Xthal_configid1;
-#endif
-
-#ifdef INCLUDE_DEPRECATED_HAL_DEBUG_CODE
-#define XTHAL_24_BIT_BREAK 0x80000000
-#define XTHAL_16_BIT_BREAK 0x40000000
-extern const unsigned short Xthal_ill_inst_16[16];
-#define XTHAL_DEST_REG 0xf0000000 /* Mask for destination register */
-#define XTHAL_DEST_REG_INST 0x08000000 /* Branch address is in register */
-#define XTHAL_DEST_REL_INST 0x04000000 /* Branch address is relative */
-#define XTHAL_RFW_INST 0x00000800
-#define XTHAL_RFUE_INST 0x00000400
-#define XTHAL_RFI_INST 0x00000200
-#define XTHAL_RFE_INST 0x00000100
-#define XTHAL_RET_INST 0x00000080
-#define XTHAL_BREAK_INST 0x00000040
-#define XTHAL_SYSCALL_INST 0x00000020
-#define XTHAL_LOOP_END 0x00000010 /* Not set by xthal_inst_type */
-#define XTHAL_JUMP_INST 0x00000008 /* Call or jump instruction */
-#define XTHAL_BRANCH_INST 0x00000004 /* Branch instruction */
-#define XTHAL_24_BIT_INST 0x00000002
-#define XTHAL_16_BIT_INST 0x00000001
-typedef struct xthal_state {
- unsigned pc;
- unsigned ar[16];
- unsigned lbeg;
- unsigned lend;
- unsigned lcount;
- unsigned extra_ptr;
- unsigned cpregs_ptr[XTHAL_MAX_CPS];
-} XTHAL_STATE;
-extern unsigned int xthal_inst_type(void *addr);
-extern unsigned int xthal_branch_addr(void *addr);
-extern unsigned int xthal_get_npc(XTHAL_STATE *user_state);
-#endif /* INCLUDE_DEPRECATED_HAL_DEBUG_CODE */
-
-#ifdef __cplusplus
-}
-#endif
-#endif /*!__ASSEMBLY__ */
-
-#endif /*XTENSA_HAL_H*/
-
+++ /dev/null
-#ifndef SIMCALL_INCLUDED
-#define SIMCALL_INCLUDED
-
-/*
- * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
- *
- * include/asm-xtensa/xtensa/simcall.h - Simulator call numbers
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of
- * this archive for more details.
- *
- * Copyright (C) 2002 Tensilica Inc.
- */
-
-
-/*
- * System call like services offered by the simulator host.
- * These are modeled after the Linux 2.4 kernel system calls
- * for Xtensa processors. However not all system calls and
- * not all functionality of a given system call are implemented,
- * or necessarily have well defined or equivalent semantics in
- * the context of a simulation (as opposed to a Unix kernel).
- *
- * These services behave largely as if they had been invoked
- * as a task in the simulator host's operating system
- * (eg. files accessed are those of the simulator host).
- * However, these SIMCALLs model a virtual operating system
- * so that various definitions, bit assignments etc
- * (eg. open mode bits, errno values, etc) are independent
- * of the host operating system used to run the simulation.
- * Rather these definitions are specific to the Xtensa ISS.
- * This way Xtensa ISA code written to use these SIMCALLs
- * can (in principle) be simulated on any host.
- *
- * Up to 6 parameters are passed in registers a3 to a8
- * (note the 6th parameter isn't passed on the stack,
- * unlike windowed function calling conventions).
- * The return value is in a2. A negative value in the
- * range -4096 to -1 indicates a negated error code to be
- * reported in errno with a return value of -1, otherwise
- * the value in a2 is returned as is.
- */
-
-/* These #defines need to match what's in Xtensa/OS/vxworks/xtiss/simcalls.c */
-
-#define SYS_nop 0 /* n/a - setup; used to flush register windows */
-#define SYS_exit 1 /*x*/
-#define SYS_fork 2
-#define SYS_read 3 /*x*/
-#define SYS_write 4 /*x*/
-#define SYS_open 5 /*x*/
-#define SYS_close 6 /*x*/
-#define SYS_rename 7 /*x 38 - waitpid */
-#define SYS_creat 8 /*x*/
-#define SYS_link 9 /*x (not implemented on WIN32) */
-#define SYS_unlink 10 /*x*/
-#define SYS_execv 11 /* n/a - execve */
-#define SYS_execve 12 /* 11 - chdir */
-#define SYS_pipe 13 /* 42 - time */
-#define SYS_stat 14 /* 106 - mknod */
-#define SYS_chmod 15
-#define SYS_chown 16 /* 202 - lchown */
-#define SYS_utime 17 /* 30 - break */
-#define SYS_wait 18 /* n/a - oldstat */
-#define SYS_lseek 19 /*x*/
-#define SYS_getpid 20
-#define SYS_isatty 21 /* n/a - mount */
-#define SYS_fstat 22 /* 108 - oldumount */
-#define SYS_time 23 /* 13 - setuid */
-#define SYS_gettimeofday 24 /*x 78 - getuid (not implemented on WIN32) */
-#define SYS_times 25 /*X 43 - stime (Xtensa-specific implementation) */
-#define SYS_socket 26
-#define SYS_sendto 27
-#define SYS_recvfrom 28
-#define SYS_select_one 29 /* not compitible select, one file descriptor at the time */
-#define SYS_bind 30
-#define SYS_ioctl 31
-
-/*
- * Other...
- */
-#define SYS_iss_argc 1000 /* returns value of argc */
-#define SYS_iss_argv_size 1001 /* bytes needed for argv & arg strings */
-#define SYS_iss_set_argv 1002 /* saves argv & arg strings at given addr */
-
-/*
- * SIMCALLs for the ferret memory debugger. All are invoked by
- * libferret.a ... ( Xtensa/Target-Libs/ferret )
- */
-#define SYS_ferret 1010
-#define SYS_malloc 1011
-#define SYS_free 1012
-#define SYS_more_heap 1013
-#define SYS_no_heap 1014
-
-
-/*
- * Extra SIMCALLs for GDB:
- */
-#define SYS_gdb_break -1 /* invoked by XTOS on user exceptions if EPC points
- to a break.n/break, regardless of cause! */
-#define SYS_xmon_out -2 /* invoked by XMON: ... */
-#define SYS_xmon_in -3 /* invoked by XMON: ... */
-#define SYS_xmon_flush -4 /* invoked by XMON: ... */
-#define SYS_gdb_abort -5 /* invoked by XTOS in _xtos_panic() */
-#define SYS_gdb_illegal_inst -6 /* invoked by XTOS for illegal instructions (too deeply) */
-#define SYS_xmon_init -7 /* invoked by XMON: ... */
-#define SYS_gdb_enter_sktloop -8 /* invoked by XTOS on debug exceptions */
-
-/*
- * SIMCALLs for vxWorks xtiss BSP:
- */
-#define SYS_setup_ppp_pipes -83
-#define SYS_log_msg -84
-
-/*
- * Test SIMCALLs:
- */
-#define SYS_test_write_state -100
-#define SYS_test_read_state -101
-
-/*
- * SYS_select_one specifiers
- */
-#define XTISS_SELECT_ONE_READ 1
-#define XTISS_SELECT_ONE_WRITE 2
-#define XTISS_SELECT_ONE_EXCEPT 3
-
-#endif /* !SIMCALL_INCLUDED */
+++ /dev/null
-#ifndef _uart_h_included_
-#define _uart_h_included_
-
-/*
- * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
- *
- * include/asm-xtensa/xtensa/xt2000-uart.h -- NatSemi PC16552D DUART
- * definitions
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2002 Tensilica Inc.
- */
-
-
-#include <xtensa/xt2000.h>
-
-
-/* 16550 UART DEVICE REGISTERS
- The XT2000 board aligns each register to a 32-bit word but the UART device only uses
- one byte of the word, which is the least-significant byte regardless of the
- endianness of the core (ie. byte offset 0 for little-endian and 3 for big-endian).
- So if using word accesses then endianness doesn't matter.
- The macros provided here do that.
-*/
-struct uart_dev_s {
- union {
- unsigned int rxb; /* DLAB=0: receive buffer, read-only */
- unsigned int txb; /* DLAB=0: transmit buffer, write-only */
- unsigned int dll; /* DLAB=1: divisor, least-significant byte latch (was write-only?) */
- } w0;
- union {
- unsigned int ier; /* DLAB=0: interrupt-enable register (was write-only?) */
- unsigned int dlm; /* DLAB=1: divisor, most-significant byte latch (was write-only?) */
- } w1;
-
- union {
- unsigned int isr; /* DLAB=0: interrupt status register, read-only */
- unsigned int fcr; /* DLAB=0: FIFO control register, write-only */
- unsigned int afr; /* DLAB=1: alternate function register */
- } w2;
-
- unsigned int lcr; /* line control-register, write-only */
- unsigned int mcr; /* modem control-regsiter, write-only */
- unsigned int lsr; /* line status register, read-only */
- unsigned int msr; /* modem status register, read-only */
- unsigned int scr; /* scratch regsiter, read/write */
-};
-
-#define _RXB(u) ((u)->w0.rxb)
-#define _TXB(u) ((u)->w0.txb)
-#define _DLL(u) ((u)->w0.dll)
-#define _IER(u) ((u)->w1.ier)
-#define _DLM(u) ((u)->w1.dlm)
-#define _ISR(u) ((u)->w2.isr)
-#define _FCR(u) ((u)->w2.fcr)
-#define _AFR(u) ((u)->w2.afr)
-#define _LCR(u) ((u)->lcr)
-#define _MCR(u) ((u)->mcr)
-#define _LSR(u) ((u)->lsr)
-#define _MSR(u) ((u)->msr)
-#define _SCR(u) ((u)->scr)
-
-typedef volatile struct uart_dev_s uart_dev_t;
-
-/* IER bits */
-#define RCVR_DATA_REG_INTENABLE 0x01
-#define XMIT_HOLD_REG_INTENABLE 0x02
-#define RCVR_STATUS_INTENABLE 0x04
-#define MODEM_STATUS_INTENABLE 0x08
-
-/* FCR bits */
-#define _FIFO_ENABLE 0x01
-#define RCVR_FIFO_RESET 0x02
-#define XMIT_FIFO_RESET 0x04
-#define DMA_MODE_SELECT 0x08
-#define RCVR_TRIGGER_LSB 0x40
-#define RCVR_TRIGGER_MSB 0x80
-
-/* AFR bits */
-#define AFR_CONC_WRITE 0x01
-#define AFR_BAUDOUT_SEL 0x02
-#define AFR_RXRDY_SEL 0x04
-
-/* ISR bits */
-#define INT_STATUS(r) ((r)&1)
-#define INT_PRIORITY(r) (((r)>>1)&0x7)
-
-/* LCR bits */
-#define WORD_LENGTH(n) (((n)-5)&0x3)
-#define STOP_BIT_ENABLE 0x04
-#define PARITY_ENABLE 0x08
-#define EVEN_PARITY 0x10
-#define FORCE_PARITY 0x20
-#define XMIT_BREAK 0x40
-#define DLAB_ENABLE 0x80
-
-/* MCR bits */
-#define _DTR 0x01
-#define _RTS 0x02
-#define _OP1 0x04
-#define _OP2 0x08
-#define LOOP_BACK 0x10
-
-/* LSR Bits */
-#define RCVR_DATA_READY 0x01
-#define OVERRUN_ERROR 0x02
-#define PARITY_ERROR 0x04
-#define FRAMING_ERROR 0x08
-#define BREAK_INTERRUPT 0x10
-#define XMIT_HOLD_EMPTY 0x20
-#define XMIT_EMPTY 0x40
-#define FIFO_ERROR 0x80
-#define RCVR_READY(u) (_LSR(u)&RCVR_DATA_READY)
-#define XMIT_READY(u) (_LSR(u)&XMIT_HOLD_EMPTY)
-
-/* MSR bits */
-#define _RDR 0x01
-#define DELTA_DSR 0x02
-#define DELTA_RI 0x04
-#define DELTA_CD 0x08
-#define _CTS 0x10
-#define _DSR 0x20
-#define _RI 0x40
-#define _CD 0x80
-
-/* prototypes */
-void uart_init( uart_dev_t *u, int bitrate );
-void uart_out( uart_dev_t *u, char c );
-void uart_puts( uart_dev_t *u, char *s );
-char uart_in( uart_dev_t *u );
-void uart_enable_rcvr_int( uart_dev_t *u );
-void uart_disable_rcvr_int( uart_dev_t *u );
-
-#ifdef DUART16552_1_VADDR
-/* DUART present. */
-#define DUART_1_BASE (*(uart_dev_t*)DUART16552_1_VADDR)
-#define DUART_2_BASE (*(uart_dev_t*)DUART16552_2_VADDR)
-#define UART1_PUTS(s) uart_puts( &DUART_1_BASE, s )
-#define UART2_PUTS(s) uart_puts( &DUART_2_BASE, s )
-#else
-/* DUART not configured, use dummy placeholders to allow compiles to work. */
-#define DUART_1_BASE (*(uart_dev_t*)0)
-#define DUART_2_BASE (*(uart_dev_t*)0)
-#define UART1_PUTS(s)
-#define UART2_PUTS(s)
-#endif
-
-/* Compute 16-bit divisor for baudrate generator, with rounding: */
-#define DUART_DIVISOR(crystal,speed) (((crystal)/16 + (speed)/2)/(speed))
-
-#endif /*_uart_h_included_*/
-
+++ /dev/null
-#ifndef _INC_XT2000_H_
-#define _INC_XT2000_H_
-
-/*
- * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
- *
- * include/asm-xtensa/xtensa/xt2000.h - Definitions specific to the
- * Tensilica XT2000 Emulation Board
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2002 Tensilica Inc.
- */
-
-
-#include <xtensa/config/core.h>
-#include <xtensa/config/system.h>
-
-
-/*
- * Default assignment of XT2000 devices to external interrupts.
- */
-
-/* Ethernet interrupt: */
-#ifdef XCHAL_EXTINT3_NUM
-#define SONIC83934_INTNUM XCHAL_EXTINT3_NUM
-#define SONIC83934_INTLEVEL XCHAL_EXTINT3_LEVEL
-#define SONIC83934_INTMASK XCHAL_EXTINT3_MASK
-#else
-#define SONIC83934_INTMASK 0
-#endif
-
-/* DUART channel 1 interrupt (P1 - console): */
-#ifdef XCHAL_EXTINT4_NUM
-#define DUART16552_1_INTNUM XCHAL_EXTINT4_NUM
-#define DUART16552_1_INTLEVEL XCHAL_EXTINT4_LEVEL
-#define DUART16552_1_INTMASK XCHAL_EXTINT4_MASK
-#else
-#define DUART16552_1_INTMASK 0
-#endif
-
-/* DUART channel 2 interrupt (P2 - 2nd serial port): */
-#ifdef XCHAL_EXTINT5_NUM
-#define DUART16552_2_INTNUM XCHAL_EXTINT5_NUM
-#define DUART16552_2_INTLEVEL XCHAL_EXTINT5_LEVEL
-#define DUART16552_2_INTMASK XCHAL_EXTINT5_MASK
-#else
-#define DUART16552_2_INTMASK 0
-#endif
-
-/* FPGA-combined PCI/etc interrupts: */
-#ifdef XCHAL_EXTINT6_NUM
-#define XT2000_FPGAPCI_INTNUM XCHAL_EXTINT6_NUM
-#define XT2000_FPGAPCI_INTLEVEL XCHAL_EXTINT6_LEVEL
-#define XT2000_FPGAPCI_INTMASK XCHAL_EXTINT6_MASK
-#else
-#define XT2000_FPGAPCI_INTMASK 0
-#endif
-
-
-
-/*
- * Device addresses.
- *
- * Note: for endianness-independence, use 32-bit loads and stores for all
- * register accesses to Ethernet, DUART and LED devices. Undefined bits
- * may need to be masked out if needed when reading if the actual register
- * size is smaller than 32 bits.
- *
- * Note: XT2000 bus byte lanes are defined in terms of msbyte and lsbyte
- * relative to the processor. So 32-bit registers are accessed consistently
- * from both big and little endian processors. However, this means byte
- * sequences are not consistent between big and little endian processors.
- * This is fine for RAM, and for ROM if ROM is created for a specific
- * processor (and thus has correct byte sequences). However this may be
- * unexpected for Flash, which might contain a file-system that one wants
- * to use for multiple processor configurations (eg. the Flash might contain
- * the Ethernet card's address, endianness-independent application data, etc).
- * That is, byte sequences written in Flash by a core of a given endianness
- * will be byte-swapped when seen by a core of the other endianness.
- * Someone implementing an endianness-independent Flash file system will
- * likely handle this byte-swapping issue in the Flash driver software.
- */
-
-#define DUART16552_XTAL_FREQ 18432000 /* crystal frequency in Hz */
-#define XTBOARD_FLASH_MAXSIZE 0x4000000 /* 64 MB (max; depends on what is socketed!) */
-#define XTBOARD_EPROM_MAXSIZE 0x0400000 /* 4 MB (max; depends on what is socketed!) */
-#define XTBOARD_EEPROM_MAXSIZE 0x0080000 /* 512 kB (max; depends on what is socketed!) */
-#define XTBOARD_ASRAM_SIZE 0x0100000 /* 1 MB */
-#define XTBOARD_PCI_MEM_SIZE 0x8000000 /* 128 MB (allocated) */
-#define XTBOARD_PCI_IO_SIZE 0x1000000 /* 16 MB (allocated) */
-
-#ifdef XSHAL_IOBLOCK_BYPASS_PADDR
-/* PCI memory space: */
-# define XTBOARD_PCI_MEM_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0x0000000)
-/* Socketed Flash (eg. 2 x 16-bit devices): */
-# define XTBOARD_FLASH_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0x8000000)
-/* PCI I/O space: */
-# define XTBOARD_PCI_IO_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xC000000)
-/* V3 PCI interface chip register/config space: */
-# define XTBOARD_V3PCI_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD000000)
-/* Bus Interface registers: */
-# define XTBOARD_BUSINT_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD010000)
-/* FPGA registers: */
-# define XT2000_FPGAREGS_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD020000)
-/* SONIC SN83934 Ethernet controller/transceiver: */
-# define SONIC83934_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD030000)
-/* 8-character bitmapped LED display: */
-# define XTBOARD_LED_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD040000)
-/* National-Semi PC16552D DUART: */
-# define DUART16552_1_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD050020) /* channel 1 (P1 - console) */
-# define DUART16552_2_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD050000) /* channel 2 (P2) */
-/* Asynchronous Static RAM: */
-# define XTBOARD_ASRAM_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD400000)
-/* 8-bit EEPROM: */
-# define XTBOARD_EEPROM_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD600000)
-/* 2 x 16-bit EPROMs: */
-# define XTBOARD_EPROM_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD800000)
-#endif /* XSHAL_IOBLOCK_BYPASS_PADDR */
-
-/* These devices might be accessed cached: */
-#ifdef XSHAL_IOBLOCK_CACHED_PADDR
-# define XTBOARD_PCI_MEM_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0x0000000)
-# define XTBOARD_FLASH_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0x8000000)
-# define XTBOARD_ASRAM_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0xD400000)
-# define XTBOARD_EEPROM_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0xD600000)
-# define XTBOARD_EPROM_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0xD800000)
-#endif /* XSHAL_IOBLOCK_CACHED_PADDR */
-
-
-/*** Same thing over again, this time with virtual addresses: ***/
-
-#ifdef XSHAL_IOBLOCK_BYPASS_VADDR
-/* PCI memory space: */
-# define XTBOARD_PCI_MEM_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0x0000000)
-/* Socketed Flash (eg. 2 x 16-bit devices): */
-# define XTBOARD_FLASH_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0x8000000)
-/* PCI I/O space: */
-# define XTBOARD_PCI_IO_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xC000000)
-/* V3 PCI interface chip register/config space: */
-# define XTBOARD_V3PCI_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD000000)
-/* Bus Interface registers: */
-# define XTBOARD_BUSINT_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD010000)
-/* FPGA registers: */
-# define XT2000_FPGAREGS_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD020000)
-/* SONIC SN83934 Ethernet controller/transceiver: */
-# define SONIC83934_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD030000)
-/* 8-character bitmapped LED display: */
-# define XTBOARD_LED_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD040000)
-/* National-Semi PC16552D DUART: */
-# define DUART16552_1_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD050020) /* channel 1 (P1 - console) */
-# define DUART16552_2_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD050000) /* channel 2 (P2) */
-/* Asynchronous Static RAM: */
-# define XTBOARD_ASRAM_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD400000)
-/* 8-bit EEPROM: */
-# define XTBOARD_EEPROM_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD600000)
-/* 2 x 16-bit EPROMs: */
-# define XTBOARD_EPROM_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD800000)
-#endif /* XSHAL_IOBLOCK_BYPASS_VADDR */
-
-/* These devices might be accessed cached: */
-#ifdef XSHAL_IOBLOCK_CACHED_VADDR
-# define XTBOARD_PCI_MEM_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0x0000000)
-# define XTBOARD_FLASH_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0x8000000)
-# define XTBOARD_ASRAM_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0xD400000)
-# define XTBOARD_EEPROM_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0xD600000)
-# define XTBOARD_EPROM_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0xD800000)
-#endif /* XSHAL_IOBLOCK_CACHED_VADDR */
-
-
-/* System ROM: */
-#define XTBOARD_ROM_SIZE XSHAL_ROM_SIZE
-#ifdef XSHAL_ROM_VADDR
-#define XTBOARD_ROM_VADDR XSHAL_ROM_VADDR
-#endif
-#ifdef XSHAL_ROM_PADDR
-#define XTBOARD_ROM_PADDR XSHAL_ROM_PADDR
-#endif
-
-/* System RAM: */
-#define XTBOARD_RAM_SIZE XSHAL_RAM_SIZE
-#ifdef XSHAL_RAM_VADDR
-#define XTBOARD_RAM_VADDR XSHAL_RAM_VADDR
-#endif
-#ifdef XSHAL_RAM_PADDR
-#define XTBOARD_RAM_PADDR XSHAL_RAM_PADDR
-#endif
-#define XTBOARD_RAM_BYPASS_VADDR XSHAL_RAM_BYPASS_VADDR
-#define XTBOARD_RAM_BYPASS_PADDR XSHAL_RAM_BYPASS_PADDR
-
-
-
-/*
- * Things that depend on device addresses.
- */
-
-
-#define XTBOARD_CACHEATTR_WRITEBACK XSHAL_XT2000_CACHEATTR_WRITEBACK
-#define XTBOARD_CACHEATTR_WRITEALLOC XSHAL_XT2000_CACHEATTR_WRITEALLOC
-#define XTBOARD_CACHEATTR_WRITETHRU XSHAL_XT2000_CACHEATTR_WRITETHRU
-#define XTBOARD_CACHEATTR_BYPASS XSHAL_XT2000_CACHEATTR_BYPASS
-#define XTBOARD_CACHEATTR_DEFAULT XSHAL_XT2000_CACHEATTR_DEFAULT
-
-#define XTBOARD_BUSINT_PIPE_REGIONS XSHAL_XT2000_PIPE_REGIONS
-#define XTBOARD_BUSINT_SDRAM_REGIONS XSHAL_XT2000_SDRAM_REGIONS
-
-
-
-/*
- * BusLogic (FPGA) registers.
- * All these registers are normally accessed using 32-bit loads/stores.
- */
-
-/* Register offsets: */
-#define XT2000_DATECD_OFS 0x00 /* date code (read-only) */
-#define XT2000_STSREG_OFS 0x04 /* status (read-only) */
-#define XT2000_SYSLED_OFS 0x08 /* system LED */
-#define XT2000_WRPROT_OFS 0x0C /* write protect */
-#define XT2000_SWRST_OFS 0x10 /* software reset */
-#define XT2000_SYSRST_OFS 0x14 /* system (peripherals) reset */
-#define XT2000_IMASK_OFS 0x18 /* interrupt mask */
-#define XT2000_ISTAT_OFS 0x1C /* interrupt status */
-#define XT2000_V3CFG_OFS 0x20 /* V3 config (V320 PCI) */
-
-/* Physical register addresses: */
-#ifdef XT2000_FPGAREGS_PADDR
-#define XT2000_DATECD_PADDR (XT2000_FPGAREGS_PADDR+XT2000_DATECD_OFS)
-#define XT2000_STSREG_PADDR (XT2000_FPGAREGS_PADDR+XT2000_STSREG_OFS)
-#define XT2000_SYSLED_PADDR (XT2000_FPGAREGS_PADDR+XT2000_SYSLED_OFS)
-#define XT2000_WRPROT_PADDR (XT2000_FPGAREGS_PADDR+XT2000_WRPROT_OFS)
-#define XT2000_SWRST_PADDR (XT2000_FPGAREGS_PADDR+XT2000_SWRST_OFS)
-#define XT2000_SYSRST_PADDR (XT2000_FPGAREGS_PADDR+XT2000_SYSRST_OFS)
-#define XT2000_IMASK_PADDR (XT2000_FPGAREGS_PADDR+XT2000_IMASK_OFS)
-#define XT2000_ISTAT_PADDR (XT2000_FPGAREGS_PADDR+XT2000_ISTAT_OFS)
-#define XT2000_V3CFG_PADDR (XT2000_FPGAREGS_PADDR+XT2000_V3CFG_OFS)
-#endif
-
-/* Virtual register addresses: */
-#ifdef XT2000_FPGAREGS_VADDR
-#define XT2000_DATECD_VADDR (XT2000_FPGAREGS_VADDR+XT2000_DATECD_OFS)
-#define XT2000_STSREG_VADDR (XT2000_FPGAREGS_VADDR+XT2000_STSREG_OFS)
-#define XT2000_SYSLED_VADDR (XT2000_FPGAREGS_VADDR+XT2000_SYSLED_OFS)
-#define XT2000_WRPROT_VADDR (XT2000_FPGAREGS_VADDR+XT2000_WRPROT_OFS)
-#define XT2000_SWRST_VADDR (XT2000_FPGAREGS_VADDR+XT2000_SWRST_OFS)
-#define XT2000_SYSRST_VADDR (XT2000_FPGAREGS_VADDR+XT2000_SYSRST_OFS)
-#define XT2000_IMASK_VADDR (XT2000_FPGAREGS_VADDR+XT2000_IMASK_OFS)
-#define XT2000_ISTAT_VADDR (XT2000_FPGAREGS_VADDR+XT2000_ISTAT_OFS)
-#define XT2000_V3CFG_VADDR (XT2000_FPGAREGS_VADDR+XT2000_V3CFG_OFS)
-/* Register access (for C code): */
-#define XT2000_DATECD_REG (*(volatile unsigned*) XT2000_DATECD_VADDR)
-#define XT2000_STSREG_REG (*(volatile unsigned*) XT2000_STSREG_VADDR)
-#define XT2000_SYSLED_REG (*(volatile unsigned*) XT2000_SYSLED_VADDR)
-#define XT2000_WRPROT_REG (*(volatile unsigned*) XT2000_WRPROT_VADDR)
-#define XT2000_SWRST_REG (*(volatile unsigned*) XT2000_SWRST_VADDR)
-#define XT2000_SYSRST_REG (*(volatile unsigned*) XT2000_SYSRST_VADDR)
-#define XT2000_IMASK_REG (*(volatile unsigned*) XT2000_IMASK_VADDR)
-#define XT2000_ISTAT_REG (*(volatile unsigned*) XT2000_ISTAT_VADDR)
-#define XT2000_V3CFG_REG (*(volatile unsigned*) XT2000_V3CFG_VADDR)
-#endif
-
-/* DATECD (date code) bit fields: */
-
-/* BCD-coded month (01..12): */
-#define XT2000_DATECD_MONTH_SHIFT 24
-#define XT2000_DATECD_MONTH_BITS 8
-#define XT2000_DATECD_MONTH_MASK 0xFF000000
-/* BCD-coded day (01..31): */
-#define XT2000_DATECD_DAY_SHIFT 16
-#define XT2000_DATECD_DAY_BITS 8
-#define XT2000_DATECD_DAY_MASK 0x00FF0000
-/* BCD-coded year (2001..9999): */
-#define XT2000_DATECD_YEAR_SHIFT 0
-#define XT2000_DATECD_YEAR_BITS 16
-#define XT2000_DATECD_YEAR_MASK 0x0000FFFF
-
-/* STSREG (status) bit fields: */
-
-/* Switch SW3 setting bit fields (0=off/up, 1=on/down): */
-#define XT2000_STSREG_SW3_SHIFT 0
-#define XT2000_STSREG_SW3_BITS 4
-#define XT2000_STSREG_SW3_MASK 0x0000000F
-/* Boot-select bits of switch SW3: */
-#define XT2000_STSREG_BOOTSEL_SHIFT 0
-#define XT2000_STSREG_BOOTSEL_BITS 2
-#define XT2000_STSREG_BOOTSEL_MASK 0x00000003
-/* Boot-select values: */
-#define XT2000_STSREG_BOOTSEL_FLASH 0
-#define XT2000_STSREG_BOOTSEL_EPROM16 1
-#define XT2000_STSREG_BOOTSEL_PROM8 2
-#define XT2000_STSREG_BOOTSEL_ASRAM 3
-/* User-defined bits of switch SW3: */
-#define XT2000_STSREG_SW3_2_SHIFT 2
-#define XT2000_STSREG_SW3_2_MASK 0x00000004
-#define XT2000_STSREG_SW3_3_SHIFT 3
-#define XT2000_STSREG_SW3_3_MASK 0x00000008
-
-/* SYSLED (system LED) bit fields: */
-
-/* LED control bit (0=off, 1=on): */
-#define XT2000_SYSLED_LEDON_SHIFT 0
-#define XT2000_SYSLED_LEDON_MASK 0x00000001
-
-/* WRPROT (write protect) bit fields (0=writable, 1=write-protected [default]): */
-
-/* Flash write protect: */
-#define XT2000_WRPROT_FLWP_SHIFT 0
-#define XT2000_WRPROT_FLWP_MASK 0x00000001
-/* Reserved but present write protect bits: */
-#define XT2000_WRPROT_WRP_SHIFT 1
-#define XT2000_WRPROT_WRP_BITS 7
-#define XT2000_WRPROT_WRP_MASK 0x000000FE
-
-/* SWRST (software reset; allows s/w to generate power-on equivalent reset): */
-
-/* Software reset bits: */
-#define XT2000_SWRST_SWR_SHIFT 0
-#define XT2000_SWRST_SWR_BITS 16
-#define XT2000_SWRST_SWR_MASK 0x0000FFFF
-/* Software reset value -- writing this value resets the board: */
-#define XT2000_SWRST_RESETVALUE 0x0000DEAD
-
-/* SYSRST (system reset; controls reset of individual peripherals): */
-
-/* All-device reset: */
-#define XT2000_SYSRST_ALL_SHIFT 0
-#define XT2000_SYSRST_ALL_BITS 4
-#define XT2000_SYSRST_ALL_MASK 0x0000000F
-/* HDSP-2534 LED display reset (1=reset, 0=nothing): */
-#define XT2000_SYSRST_LED_SHIFT 0
-#define XT2000_SYSRST_LED_MASK 0x00000001
-/* Sonic DP83934 Ethernet controller reset (1=reset, 0=nothing): */
-#define XT2000_SYSRST_SONIC_SHIFT 1
-#define XT2000_SYSRST_SONIC_MASK 0x00000002
-/* DP16552 DUART reset (1=reset, 0=nothing): */
-#define XT2000_SYSRST_DUART_SHIFT 2
-#define XT2000_SYSRST_DUART_MASK 0x00000004
-/* V3 V320 PCI bridge controller reset (1=reset, 0=nothing): */
-#define XT2000_SYSRST_V3_SHIFT 3
-#define XT2000_SYSRST_V3_MASK 0x00000008
-
-/* IMASK (interrupt mask; 0=disable, 1=enable): */
-/* ISTAT (interrupt status; 0=inactive, 1=pending): */
-
-/* PCI INTP interrupt: */
-#define XT2000_INTMUX_PCI_INTP_SHIFT 2
-#define XT2000_INTMUX_PCI_INTP_MASK 0x00000004
-/* PCI INTS interrupt: */
-#define XT2000_INTMUX_PCI_INTS_SHIFT 3
-#define XT2000_INTMUX_PCI_INTS_MASK 0x00000008
-/* PCI INTD interrupt: */
-#define XT2000_INTMUX_PCI_INTD_SHIFT 4
-#define XT2000_INTMUX_PCI_INTD_MASK 0x00000010
-/* V320 PCI controller interrupt: */
-#define XT2000_INTMUX_V3_SHIFT 5
-#define XT2000_INTMUX_V3_MASK 0x00000020
-/* PCI ENUM interrupt: */
-#define XT2000_INTMUX_PCI_ENUM_SHIFT 6
-#define XT2000_INTMUX_PCI_ENUM_MASK 0x00000040
-/* PCI DEG interrupt: */
-#define XT2000_INTMUX_PCI_DEG_SHIFT 7
-#define XT2000_INTMUX_PCI_DEG_MASK 0x00000080
-
-/* V3CFG (V3 config, V320 PCI controller): */
-
-/* V3 address control (0=pass-thru, 1=V3 address bits 31:28 set to 4'b0001 [default]): */
-#define XT2000_V3CFG_V3ADC_SHIFT 0
-#define XT2000_V3CFG_V3ADC_MASK 0x00000001
-
-/* I2C Devices */
-
-#define XT2000_I2C_RTC_ID 0x68
-#define XT2000_I2C_NVRAM0_ID 0x56 /* 1st 256 byte block */
-#define XT2000_I2C_NVRAM1_ID 0x57 /* 2nd 256 byte block */
-
-/* NVRAM Board Info structure: */
-
-#define XT2000_NVRAM_SIZE 512
-
-#define XT2000_NVRAM_BINFO_START 0x100
-#define XT2000_NVRAM_BINFO_SIZE 0x20
-#define XT2000_NVRAM_BINFO_VERSION 0x10 /* version 1.0 */
-#if 0
-#define XT2000_NVRAM_BINFO_VERSION_OFFSET 0x00
-#define XT2000_NVRAM_BINFO_VERSION_SIZE 0x1
-#define XT2000_NVRAM_BINFO_ETH_ADDR_OFFSET 0x02
-#define XT2000_NVRAM_BINFO_ETH_ADDR_SIZE 0x6
-#define XT2000_NVRAM_BINFO_SN_OFFSET 0x10
-#define XT2000_NVRAM_BINFO_SN_SIZE 0xE
-#define XT2000_NVRAM_BINFO_CRC_OFFSET 0x1E
-#define XT2000_NVRAM_BINFO_CRC_SIZE 0x2
-#endif /*0*/
-
-#if !defined(__ASSEMBLY__) && !defined(_NOCLANGUAGE)
-typedef struct xt2000_nvram_binfo {
- unsigned char version;
- unsigned char reserved1;
- unsigned char eth_addr[6];
- unsigned char reserved8[8];
- unsigned char serialno[14];
- unsigned char crc[2]; /* 16-bit CRC */
-} xt2000_nvram_binfo;
-#endif /*!__ASSEMBLY__ && !_NOCLANGUAGE*/
-
-
-#endif /*_INC_XT2000_H_*/
-
+++ /dev/null
-#ifndef _xtboard_h_included_
-#define _xtboard_h_included_
-
-/*
- * THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
- *
- * xtboard.h -- Routines for getting useful information from the board.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2002 Tensilica Inc.
- */
-
-
-#include <xtensa/xt2000.h>
-
-#define XTBOARD_RTC_ERROR -1
-#define XTBOARD_RTC_STOPPED -2
-
-
-/* xt2000-i2cdev.c: */
-typedef void XtboardDelayFunc( unsigned );
-extern XtboardDelayFunc* xtboard_set_nsdelay_func( XtboardDelayFunc *delay_fn );
-extern int xtboard_i2c_read (unsigned id, unsigned char *buf, unsigned addr, unsigned size);
-extern int xtboard_i2c_write(unsigned id, unsigned char *buf, unsigned addr, unsigned size);
-extern int xtboard_i2c_wait_nvram_ack(unsigned id, unsigned swtimer);
-
-/* xtboard.c: */
-extern int xtboard_nvram_read (unsigned addr, unsigned len, unsigned char *buf);
-extern int xtboard_nvram_write(unsigned addr, unsigned len, unsigned char *buf);
-extern int xtboard_nvram_binfo_read (xt2000_nvram_binfo *buf);
-extern int xtboard_nvram_binfo_write(xt2000_nvram_binfo *buf);
-extern int xtboard_nvram_binfo_valid(xt2000_nvram_binfo *buf);
-extern int xtboard_ethermac_get(unsigned char *buf);
-extern int xtboard_ethermac_set(unsigned char *buf);
-
-/*+*----------------------------------------------------------------------------
-/ Function: xtboard_get_rtc_time
-/
-/ Description: Get time stored in real-time clock.
-/
-/ Returns: time in seconds stored in real-time clock.
-/-**----------------------------------------------------------------------------*/
-
-extern unsigned xtboard_get_rtc_time(void);
-
-/*+*----------------------------------------------------------------------------
-/ Function: xtboard_set_rtc_time
-/
-/ Description: Set time stored in real-time clock.
-/
-/ Parameters: time -- time in seconds to store to real-time clock
-/
-/ Returns: 0 on success, xtboard_i2c_write() error code otherwise.
-/-**----------------------------------------------------------------------------*/
-
-extern int xtboard_set_rtc_time(unsigned time);
-
-
-/* xtfreq.c: */
-/*+*----------------------------------------------------------------------------
-/ Function: xtboard_measure_sys_clk
-/
-/ Description: Get frequency of system clock.
-/
-/ Parameters: none
-/
-/ Returns: frequency of system clock.
-/-**----------------------------------------------------------------------------*/
-
-extern unsigned xtboard_measure_sys_clk(void);
-
-
-#if 0 /* old stuff from xtboard.c: */
-
-/*+*----------------------------------------------------------------------------
-/ Function: xtboard_nvram valid
-/
-/ Description: Determines if data in NVRAM is valid.
-/
-/ Parameters: delay -- 10us delay function
-/
-/ Returns: 1 if NVRAM is valid, 0 otherwise
-/-**----------------------------------------------------------------------------*/
-
-extern unsigned xtboard_nvram_valid(void (*delay)( void ));
-
-/*+*----------------------------------------------------------------------------
-/ Function: xtboard_get_nvram_contents
-/
-/ Description: Returns contents of NVRAM.
-/
-/ Parameters: buf -- buffer to NVRAM contents.
-/ delay -- 10us delay function
-/
-/ Returns: 1 if NVRAM is valid, 0 otherwise
-/-**----------------------------------------------------------------------------*/
-
-extern unsigned xtboard_get_nvram_contents(unsigned char *buf, void (*delay)( void ));
-
-/*+*----------------------------------------------------------------------------
-/ Function: xtboard_get_ether_addr
-/
-/ Description: Returns ethernet address of board.
-/
-/ Parameters: buf -- buffer to store ethernet address
-/ delay -- 10us delay function
-/
-/ Returns: nothing.
-/-**----------------------------------------------------------------------------*/
-
-extern void xtboard_get_ether_addr(unsigned char *buf, void (*delay)( void ));
-
-#endif /*0*/
-
-
-#endif /*_xtboard_h_included_*/
-
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