]> err.no Git - linux-2.6/commitdiff
[PATCH] ppc64: remove arch/ppc64/kernel/setup.c
authorPaul Mackerras <paulus@samba.org>
Thu, 27 Oct 2005 10:20:42 +0000 (20:20 +1000)
committerPaul Mackerras <paulus@samba.org>
Thu, 27 Oct 2005 10:20:42 +0000 (20:20 +1000)
and use setup_64.c from the merged tree instead.  The only difference
between them was the code to set up the syscall maps.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
arch/powerpc/kernel/Makefile
arch/powerpc/kernel/setup_64.c
arch/ppc64/kernel/Makefile
arch/ppc64/kernel/setup.c [deleted file]

index 30101762f7c0258d6b715c22e0afcecdc6d4aefc..a733347964a04e6b6786332b7c9caa80405c1dc3 100644 (file)
@@ -12,7 +12,8 @@ endif
 
 obj-y                          := semaphore.o cputable.o ptrace.o syscalls.o \
                                   signal_32.o pmc.o
-obj-$(CONFIG_PPC64)            += binfmt_elf32.o sys_ppc32.o ptrace32.o
+obj-$(CONFIG_PPC64)            += setup_64.o binfmt_elf32.o sys_ppc32.o \
+                                  ptrace32.o
 obj-$(CONFIG_ALTIVEC)          += vecemu.o vector.o
 obj-$(CONFIG_POWER4)           += idle_power4.o
 obj-$(CONFIG_PPC_OF)           += of_device.o
@@ -34,7 +35,7 @@ extra-y                               += vmlinux.lds
 obj-y                          += process.o init_task.o time.o \
                                   prom.o systbl.o traps.o setup-common.o
 obj-$(CONFIG_PPC32)            += entry_32.o idle_6xx.o setup_32.o misc_32.o
-obj-$(CONFIG_PPC64)            += setup_64.o misc_64.o
+obj-$(CONFIG_PPC64)            += misc_64.o
 obj-$(CONFIG_PPC_OF)           += prom_init.o
 obj-$(CONFIG_MODULES)          += ppc_ksyms.o
 obj-$(CONFIG_BOOTX_TEXT)       += btext.o
index 9cdf294e76f67b450dd29baf0ec2fa45b595929a..721adeea601dc8cbdd3a9c14bb2b5d94ff8c7f0f 100644 (file)
@@ -702,6 +702,17 @@ static void __init emergency_stack_init(void)
                                                limit)) + PAGE_SIZE;
 }
 
+extern unsigned long *sys_call_table;
+extern unsigned long sys_ni_syscall;
+#ifdef CONFIG_PPC_MERGE
+#define SYS_CALL_ENTRY64(i)    sys_call_table[(i) * 2]
+#define SYS_CALL_ENTRY32(i)    sys_call_table[(i) * 2 + 1]
+#else
+extern unsigned long *sys_call_table32;
+#define SYS_CALL_ENTRY64(i)    sys_call_table[(i)]
+#define SYS_CALL_ENTRY32(i)    sys_call_table32[(i)]
+#endif
+
 /*
  * Called from setup_arch to initialize the bitmap of available
  * syscalls in the systemcfg page
@@ -709,17 +720,14 @@ static void __init emergency_stack_init(void)
 void __init setup_syscall_map(void)
 {
        unsigned int i, count64 = 0, count32 = 0;
-       extern unsigned long *sys_call_table;
-       extern unsigned long sys_ni_syscall;
-
 
        for (i = 0; i < __NR_syscalls; i++) {
-               if (sys_call_table[i*2] != sys_ni_syscall) {
+               if (SYS_CALL_ENTRY64(i) != sys_ni_syscall) {
                        count64++;
                        systemcfg->syscall_map_64[i >> 5] |=
                                0x80000000UL >> (i & 0x1f);
                }
-               if (sys_call_table[i*2+1] != sys_ni_syscall) {
+               if (SYS_CALL_ENTRY32(i) != sys_ni_syscall) {
                        count32++;
                        systemcfg->syscall_map_32[i >> 5] |=
                                0x80000000UL >> (i & 0x1f);
index 83ecefdcfef7f08a21a6d177d6aa4b54f1a25d0e..f2f60c9cc55f811a55a4945a58651c78a2af949a 100644 (file)
@@ -7,7 +7,7 @@ ifneq ($(CONFIG_PPC_MERGE),y)
 EXTRA_CFLAGS   += -mno-minimal-toc
 extra-y                := head.o vmlinux.lds
 
-obj-y               := setup.o entry.o misc.o prom.o
+obj-y               := entry.o misc.o prom.o
 
 endif
 
diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c
deleted file mode 100644 (file)
index 44ee6eb..0000000
+++ /dev/null
@@ -1,1307 +0,0 @@
-/*
- * 
- * Common boot and setup code.
- *
- * Copyright (C) 2001 PPC64 Team, IBM Corp
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/reboot.h>
-#include <linux/delay.h>
-#include <linux/initrd.h>
-#include <linux/ide.h>
-#include <linux/seq_file.h>
-#include <linux/ioport.h>
-#include <linux/console.h>
-#include <linux/utsname.h>
-#include <linux/tty.h>
-#include <linux/root_dev.h>
-#include <linux/notifier.h>
-#include <linux/cpu.h>
-#include <linux/unistd.h>
-#include <linux/serial.h>
-#include <linux/serial_8250.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/processor.h>
-#include <asm/pgtable.h>
-#include <asm/bootinfo.h>
-#include <asm/smp.h>
-#include <asm/elf.h>
-#include <asm/machdep.h>
-#include <asm/paca.h>
-#include <asm/ppcdebug.h>
-#include <asm/time.h>
-#include <asm/cputable.h>
-#include <asm/sections.h>
-#include <asm/btext.h>
-#include <asm/nvram.h>
-#include <asm/setup.h>
-#include <asm/system.h>
-#include <asm/rtas.h>
-#include <asm/iommu.h>
-#include <asm/serial.h>
-#include <asm/cache.h>
-#include <asm/page.h>
-#include <asm/mmu.h>
-#include <asm/lmb.h>
-#include <asm/iSeries/ItLpNaca.h>
-#include <asm/firmware.h>
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-/*
- * Here are some early debugging facilities. You can enable one
- * but your kernel will not boot on anything else if you do so
- */
-
-/* This one is for use on LPAR machines that support an HVC console
- * on vterm 0
- */
-extern void udbg_init_debug_lpar(void);
-/* This one is for use on Apple G5 machines
- */
-extern void udbg_init_pmac_realmode(void);
-/* That's RTAS panel debug */
-extern void call_rtas_display_status_delay(unsigned char c);
-/* Here's maple real mode debug */
-extern void udbg_init_maple_realmode(void);
-
-#define EARLY_DEBUG_INIT() do {} while(0)
-
-#if 0
-#define EARLY_DEBUG_INIT() udbg_init_debug_lpar()
-#define EARLY_DEBUG_INIT() udbg_init_maple_realmode()
-#define EARLY_DEBUG_INIT() udbg_init_pmac_realmode()
-#define EARLY_DEBUG_INIT()                                             \
-       do { udbg_putc = call_rtas_display_status_delay; } while(0)
-#endif
-
-/* extern void *stab; */
-extern unsigned long klimit;
-
-extern void mm_init_ppc64(void);
-extern void stab_initialize(unsigned long stab);
-extern void htab_initialize(void);
-extern void early_init_devtree(void *flat_dt);
-extern void unflatten_device_tree(void);
-
-extern void smp_release_cpus(void);
-
-int have_of = 1;
-int boot_cpuid = 0;
-int boot_cpuid_phys = 0;
-dev_t boot_dev;
-u64 ppc64_pft_size;
-
-struct ppc64_caches ppc64_caches;
-EXPORT_SYMBOL_GPL(ppc64_caches);
-
-/*
- * These are used in binfmt_elf.c to put aux entries on the stack
- * for each elf executable being started.
- */
-int dcache_bsize;
-int icache_bsize;
-int ucache_bsize;
-
-/* The main machine-dep calls structure
- */
-struct machdep_calls ppc_md;
-EXPORT_SYMBOL(ppc_md);
-
-#ifdef CONFIG_MAGIC_SYSRQ
-unsigned long SYSRQ_KEY;
-#endif /* CONFIG_MAGIC_SYSRQ */
-
-
-static int ppc64_panic_event(struct notifier_block *, unsigned long, void *);
-static struct notifier_block ppc64_panic_block = {
-       .notifier_call = ppc64_panic_event,
-       .priority = INT_MIN /* may not return; must be done last */
-};
-
-/*
- * Perhaps we can put the pmac screen_info[] here
- * on pmac as well so we don't need the ifdef's.
- * Until we get multiple-console support in here
- * that is.  -- Cort
- * Maybe tie it to serial consoles, since this is really what
- * these processors use on existing boards.  -- Dan
- */ 
-struct screen_info screen_info = {
-       .orig_x = 0,
-       .orig_y = 25,
-       .orig_video_cols = 80,
-       .orig_video_lines = 25,
-       .orig_video_isVGA = 1,
-       .orig_video_points = 16
-};
-
-#ifdef CONFIG_SMP
-
-static int smt_enabled_cmdline;
-
-/* Look for ibm,smt-enabled OF option */
-static void check_smt_enabled(void)
-{
-       struct device_node *dn;
-       char *smt_option;
-
-       /* Allow the command line to overrule the OF option */
-       if (smt_enabled_cmdline)
-               return;
-
-       dn = of_find_node_by_path("/options");
-
-       if (dn) {
-               smt_option = (char *)get_property(dn, "ibm,smt-enabled", NULL);
-
-                if (smt_option) {
-                       if (!strcmp(smt_option, "on"))
-                               smt_enabled_at_boot = 1;
-                       else if (!strcmp(smt_option, "off"))
-                               smt_enabled_at_boot = 0;
-                }
-        }
-}
-
-/* Look for smt-enabled= cmdline option */
-static int __init early_smt_enabled(char *p)
-{
-       smt_enabled_cmdline = 1;
-
-       if (!p)
-               return 0;
-
-       if (!strcmp(p, "on") || !strcmp(p, "1"))
-               smt_enabled_at_boot = 1;
-       else if (!strcmp(p, "off") || !strcmp(p, "0"))
-               smt_enabled_at_boot = 0;
-
-       return 0;
-}
-early_param("smt-enabled", early_smt_enabled);
-
-/**
- * setup_cpu_maps - initialize the following cpu maps:
- *                  cpu_possible_map
- *                  cpu_present_map
- *                  cpu_sibling_map
- *
- * Having the possible map set up early allows us to restrict allocations
- * of things like irqstacks to num_possible_cpus() rather than NR_CPUS.
- *
- * We do not initialize the online map here; cpus set their own bits in
- * cpu_online_map as they come up.
- *
- * This function is valid only for Open Firmware systems.  finish_device_tree
- * must be called before using this.
- *
- * While we're here, we may as well set the "physical" cpu ids in the paca.
- */
-static void __init setup_cpu_maps(void)
-{
-       struct device_node *dn = NULL;
-       int cpu = 0;
-       int swap_cpuid = 0;
-
-       check_smt_enabled();
-
-       while ((dn = of_find_node_by_type(dn, "cpu")) && cpu < NR_CPUS) {
-               u32 *intserv;
-               int j, len = sizeof(u32), nthreads;
-
-               intserv = (u32 *)get_property(dn, "ibm,ppc-interrupt-server#s",
-                                             &len);
-               if (!intserv)
-                       intserv = (u32 *)get_property(dn, "reg", NULL);
-
-               nthreads = len / sizeof(u32);
-
-               for (j = 0; j < nthreads && cpu < NR_CPUS; j++) {
-                       cpu_set(cpu, cpu_present_map);
-                       set_hard_smp_processor_id(cpu, intserv[j]);
-
-                       if (intserv[j] == boot_cpuid_phys)
-                               swap_cpuid = cpu;
-                       cpu_set(cpu, cpu_possible_map);
-                       cpu++;
-               }
-       }
-
-       /* Swap CPU id 0 with boot_cpuid_phys, so we can always assume that
-        * boot cpu is logical 0.
-        */
-       if (boot_cpuid_phys != get_hard_smp_processor_id(0)) {
-               u32 tmp;
-               tmp = get_hard_smp_processor_id(0);
-               set_hard_smp_processor_id(0, boot_cpuid_phys);
-               set_hard_smp_processor_id(swap_cpuid, tmp);
-       }
-
-       /*
-        * On pSeries LPAR, we need to know how many cpus
-        * could possibly be added to this partition.
-        */
-       if (systemcfg->platform == PLATFORM_PSERIES_LPAR &&
-                               (dn = of_find_node_by_path("/rtas"))) {
-               int num_addr_cell, num_size_cell, maxcpus;
-               unsigned int *ireg;
-
-               num_addr_cell = prom_n_addr_cells(dn);
-               num_size_cell = prom_n_size_cells(dn);
-
-               ireg = (unsigned int *)
-                       get_property(dn, "ibm,lrdr-capacity", NULL);
-
-               if (!ireg)
-                       goto out;
-
-               maxcpus = ireg[num_addr_cell + num_size_cell];
-
-               /* Double maxcpus for processors which have SMT capability */
-               if (cpu_has_feature(CPU_FTR_SMT))
-                       maxcpus *= 2;
-
-               if (maxcpus > NR_CPUS) {
-                       printk(KERN_WARNING
-                              "Partition configured for %d cpus, "
-                              "operating system maximum is %d.\n",
-                              maxcpus, NR_CPUS);
-                       maxcpus = NR_CPUS;
-               } else
-                       printk(KERN_INFO "Partition configured for %d cpus.\n",
-                              maxcpus);
-
-               for (cpu = 0; cpu < maxcpus; cpu++)
-                       cpu_set(cpu, cpu_possible_map);
-       out:
-               of_node_put(dn);
-       }
-
-       /*
-        * Do the sibling map; assume only two threads per processor.
-        */
-       for_each_cpu(cpu) {
-               cpu_set(cpu, cpu_sibling_map[cpu]);
-               if (cpu_has_feature(CPU_FTR_SMT))
-                       cpu_set(cpu ^ 0x1, cpu_sibling_map[cpu]);
-       }
-
-       systemcfg->processorCount = num_present_cpus();
-}
-#endif /* CONFIG_SMP */
-
-extern struct machdep_calls pSeries_md;
-extern struct machdep_calls pmac_md;
-extern struct machdep_calls maple_md;
-extern struct machdep_calls bpa_md;
-extern struct machdep_calls iseries_md;
-
-/* Ultimately, stuff them in an elf section like initcalls... */
-static struct machdep_calls __initdata *machines[] = {
-#ifdef CONFIG_PPC_PSERIES
-       &pSeries_md,
-#endif /* CONFIG_PPC_PSERIES */
-#ifdef CONFIG_PPC_PMAC
-       &pmac_md,
-#endif /* CONFIG_PPC_PMAC */
-#ifdef CONFIG_PPC_MAPLE
-       &maple_md,
-#endif /* CONFIG_PPC_MAPLE */
-#ifdef CONFIG_PPC_BPA
-       &bpa_md,
-#endif
-#ifdef CONFIG_PPC_ISERIES
-       &iseries_md,
-#endif
-       NULL
-};
-
-/*
- * Early initialization entry point. This is called by head.S
- * with MMU translation disabled. We rely on the "feature" of
- * the CPU that ignores the top 2 bits of the address in real
- * mode so we can access kernel globals normally provided we
- * only toy with things in the RMO region. From here, we do
- * some early parsing of the device-tree to setup out LMB
- * data structures, and allocate & initialize the hash table
- * and segment tables so we can start running with translation
- * enabled.
- *
- * It is this function which will call the probe() callback of
- * the various platform types and copy the matching one to the
- * global ppc_md structure. Your platform can eventually do
- * some very early initializations from the probe() routine, but
- * this is not recommended, be very careful as, for example, the
- * device-tree is not accessible via normal means at this point.
- */
-
-void __init early_setup(unsigned long dt_ptr)
-{
-       struct paca_struct *lpaca = get_paca();
-       static struct machdep_calls **mach;
-
-       /*
-        * Enable early debugging if any specified (see top of
-        * this file)
-        */
-       EARLY_DEBUG_INIT();
-
-       DBG(" -> early_setup()\n");
-
-       /*
-        * Fill the default DBG level (do we want to keep
-        * that old mecanism around forever ?)
-        */
-       ppcdbg_initialize();
-
-       /*
-        * Do early initializations using the flattened device
-        * tree, like retreiving the physical memory map or
-        * calculating/retreiving the hash table size
-        */
-       early_init_devtree(__va(dt_ptr));
-
-       /*
-        * Iterate all ppc_md structures until we find the proper
-        * one for the current machine type
-        */
-       DBG("Probing machine type for platform %x...\n",
-           systemcfg->platform);
-
-       for (mach = machines; *mach; mach++) {
-               if ((*mach)->probe(systemcfg->platform))
-                       break;
-       }
-       /* What can we do if we didn't find ? */
-       if (*mach == NULL) {
-               DBG("No suitable machine found !\n");
-               for (;;);
-       }
-       ppc_md = **mach;
-
-       DBG("Found, Initializing memory management...\n");
-
-       /*
-        * Initialize stab / SLB management
-        */
-       if (!firmware_has_feature(FW_FEATURE_ISERIES))
-               stab_initialize(lpaca->stab_real);
-
-       /*
-        * Initialize the MMU Hash table and create the linear mapping
-        * of memory
-        */
-       htab_initialize();
-
-       DBG(" <- early_setup()\n");
-}
-
-
-/*
- * Initialize some remaining members of the ppc64_caches and systemcfg structures
- * (at least until we get rid of them completely). This is mostly some
- * cache informations about the CPU that will be used by cache flush
- * routines and/or provided to userland
- */
-static void __init initialize_cache_info(void)
-{
-       struct device_node *np;
-       unsigned long num_cpus = 0;
-
-       DBG(" -> initialize_cache_info()\n");
-
-       for (np = NULL; (np = of_find_node_by_type(np, "cpu"));) {
-               num_cpus += 1;
-
-               /* We're assuming *all* of the CPUs have the same
-                * d-cache and i-cache sizes... -Peter
-                */
-
-               if ( num_cpus == 1 ) {
-                       u32 *sizep, *lsizep;
-                       u32 size, lsize;
-                       const char *dc, *ic;
-
-                       /* Then read cache informations */
-                       if (systemcfg->platform == PLATFORM_POWERMAC) {
-                               dc = "d-cache-block-size";
-                               ic = "i-cache-block-size";
-                       } else {
-                               dc = "d-cache-line-size";
-                               ic = "i-cache-line-size";
-                       }
-
-                       size = 0;
-                       lsize = cur_cpu_spec->dcache_bsize;
-                       sizep = (u32 *)get_property(np, "d-cache-size", NULL);
-                       if (sizep != NULL)
-                               size = *sizep;
-                       lsizep = (u32 *) get_property(np, dc, NULL);
-                       if (lsizep != NULL)
-                               lsize = *lsizep;
-                       if (sizep == 0 || lsizep == 0)
-                               DBG("Argh, can't find dcache properties ! "
-                                   "sizep: %p, lsizep: %p\n", sizep, lsizep);
-
-                       systemcfg->dcache_size = ppc64_caches.dsize = size;
-                       systemcfg->dcache_line_size =
-                               ppc64_caches.dline_size = lsize;
-                       ppc64_caches.log_dline_size = __ilog2(lsize);
-                       ppc64_caches.dlines_per_page = PAGE_SIZE / lsize;
-
-                       size = 0;
-                       lsize = cur_cpu_spec->icache_bsize;
-                       sizep = (u32 *)get_property(np, "i-cache-size", NULL);
-                       if (sizep != NULL)
-                               size = *sizep;
-                       lsizep = (u32 *)get_property(np, ic, NULL);
-                       if (lsizep != NULL)
-                               lsize = *lsizep;
-                       if (sizep == 0 || lsizep == 0)
-                               DBG("Argh, can't find icache properties ! "
-                                   "sizep: %p, lsizep: %p\n", sizep, lsizep);
-
-                       systemcfg->icache_size = ppc64_caches.isize = size;
-                       systemcfg->icache_line_size =
-                               ppc64_caches.iline_size = lsize;
-                       ppc64_caches.log_iline_size = __ilog2(lsize);
-                       ppc64_caches.ilines_per_page = PAGE_SIZE / lsize;
-               }
-       }
-
-       /* Add an eye catcher and the systemcfg layout version number */
-       strcpy(systemcfg->eye_catcher, "SYSTEMCFG:PPC64");
-       systemcfg->version.major = SYSTEMCFG_MAJOR;
-       systemcfg->version.minor = SYSTEMCFG_MINOR;
-       systemcfg->processor = mfspr(SPRN_PVR);
-
-       DBG(" <- initialize_cache_info()\n");
-}
-
-static void __init check_for_initrd(void)
-{
-#ifdef CONFIG_BLK_DEV_INITRD
-       u64 *prop;
-
-       DBG(" -> check_for_initrd()\n");
-
-       if (of_chosen) {
-               prop = (u64 *)get_property(of_chosen,
-                               "linux,initrd-start", NULL);
-               if (prop != NULL) {
-                       initrd_start = (unsigned long)__va(*prop);
-                       prop = (u64 *)get_property(of_chosen,
-                                       "linux,initrd-end", NULL);
-                       if (prop != NULL) {
-                               initrd_end = (unsigned long)__va(*prop);
-                               initrd_below_start_ok = 1;
-                       } else
-                               initrd_start = 0;
-               }
-       }
-
-       /* If we were passed an initrd, set the ROOT_DEV properly if the values
-        * look sensible. If not, clear initrd reference.
-        */
-       if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
-           initrd_end > initrd_start)
-               ROOT_DEV = Root_RAM0;
-       else
-               initrd_start = initrd_end = 0;
-
-       if (initrd_start)
-               printk("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end);
-
-       DBG(" <- check_for_initrd()\n");
-#endif /* CONFIG_BLK_DEV_INITRD */
-}
-
-/*
- * Do some initial setup of the system.  The parameters are those which 
- * were passed in from the bootloader.
- */
-void __init setup_system(void)
-{
-       DBG(" -> setup_system()\n");
-
-       /*
-        * Unflatten the device-tree passed by prom_init or kexec
-        */
-       unflatten_device_tree();
-
-       /*
-        * Fill the ppc64_caches & systemcfg structures with informations
-        * retreived from the device-tree. Need to be called before
-        * finish_device_tree() since the later requires some of the
-        * informations filled up here to properly parse the interrupt
-        * tree.
-        * It also sets up the cache line sizes which allows to call
-        * routines like flush_icache_range (used by the hash init
-        * later on).
-        */
-       initialize_cache_info();
-
-#ifdef CONFIG_PPC_RTAS
-       /*
-        * Initialize RTAS if available
-        */
-       rtas_initialize();
-#endif /* CONFIG_PPC_RTAS */
-
-       /*
-        * Check if we have an initrd provided via the device-tree
-        */
-       check_for_initrd();
-
-       /*
-        * Do some platform specific early initializations, that includes
-        * setting up the hash table pointers. It also sets up some interrupt-mapping
-        * related options that will be used by finish_device_tree()
-        */
-       ppc_md.init_early();
-
-       /*
-        * "Finish" the device-tree, that is do the actual parsing of
-        * some of the properties like the interrupt map
-        */
-       finish_device_tree();
-
-#ifdef CONFIG_BOOTX_TEXT
-       init_boot_display();
-#endif
-
-       /*
-        * Initialize xmon
-        */
-#ifdef CONFIG_XMON_DEFAULT
-       xmon_init(1);
-#endif
-       /*
-        * Register early console
-        */
-       register_early_udbg_console();
-
-       /* Save unparsed command line copy for /proc/cmdline */
-       strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
-
-       parse_early_param();
-
-#ifdef CONFIG_SMP
-       /*
-        * iSeries has already initialized the cpu maps at this point.
-        */
-       setup_cpu_maps();
-
-       /* Release secondary cpus out of their spinloops at 0x60 now that
-        * we can map physical -> logical CPU ids
-        */
-       smp_release_cpus();
-#endif
-
-       printk("Starting Linux PPC64 %s\n", system_utsname.version);
-
-       printk("-----------------------------------------------------\n");
-       printk("ppc64_pft_size                = 0x%lx\n", ppc64_pft_size);
-       printk("ppc64_debug_switch            = 0x%lx\n", ppc64_debug_switch);
-       printk("ppc64_interrupt_controller    = 0x%ld\n", ppc64_interrupt_controller);
-       printk("systemcfg                     = 0x%p\n", systemcfg);
-       printk("systemcfg->platform           = 0x%x\n", systemcfg->platform);
-       printk("systemcfg->processorCount     = 0x%lx\n", systemcfg->processorCount);
-       printk("systemcfg->physicalMemorySize = 0x%lx\n", systemcfg->physicalMemorySize);
-       printk("ppc64_caches.dcache_line_size = 0x%x\n",
-                       ppc64_caches.dline_size);
-       printk("ppc64_caches.icache_line_size = 0x%x\n",
-                       ppc64_caches.iline_size);
-       printk("htab_address                  = 0x%p\n", htab_address);
-       printk("htab_hash_mask                = 0x%lx\n", htab_hash_mask);
-       printk("-----------------------------------------------------\n");
-
-       mm_init_ppc64();
-
-       DBG(" <- setup_system()\n");
-}
-
-/* also used by kexec */
-void machine_shutdown(void)
-{
-       if (ppc_md.nvram_sync)
-               ppc_md.nvram_sync();
-}
-
-void machine_restart(char *cmd)
-{
-       machine_shutdown();
-       ppc_md.restart(cmd);
-#ifdef CONFIG_SMP
-       smp_send_stop();
-#endif
-       printk(KERN_EMERG "System Halted, OK to turn off power\n");
-       local_irq_disable();
-       while (1) ;
-}
-
-void machine_power_off(void)
-{
-       machine_shutdown();
-       ppc_md.power_off();
-#ifdef CONFIG_SMP
-       smp_send_stop();
-#endif
-       printk(KERN_EMERG "System Halted, OK to turn off power\n");
-       local_irq_disable();
-       while (1) ;
-}
-/* Used by the G5 thermal driver */
-EXPORT_SYMBOL_GPL(machine_power_off);
-
-void machine_halt(void)
-{
-       machine_shutdown();
-       ppc_md.halt();
-#ifdef CONFIG_SMP
-       smp_send_stop();
-#endif
-       printk(KERN_EMERG "System Halted, OK to turn off power\n");
-       local_irq_disable();
-       while (1) ;
-}
-
-static int ppc64_panic_event(struct notifier_block *this,
-                             unsigned long event, void *ptr)
-{
-       ppc_md.panic((char *)ptr);  /* May not return */
-       return NOTIFY_DONE;
-}
-
-
-#ifdef CONFIG_SMP
-DEFINE_PER_CPU(unsigned int, pvr);
-#endif
-
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
-       unsigned long cpu_id = (unsigned long)v - 1;
-       unsigned int pvr;
-       unsigned short maj;
-       unsigned short min;
-
-       if (cpu_id == NR_CPUS) {
-               seq_printf(m, "timebase\t: %lu\n", ppc_tb_freq);
-
-               if (ppc_md.show_cpuinfo != NULL)
-                       ppc_md.show_cpuinfo(m);
-
-               return 0;
-       }
-
-       /* We only show online cpus: disable preempt (overzealous, I
-        * knew) to prevent cpu going down. */
-       preempt_disable();
-       if (!cpu_online(cpu_id)) {
-               preempt_enable();
-               return 0;
-       }
-
-#ifdef CONFIG_SMP
-       pvr = per_cpu(pvr, cpu_id);
-#else
-       pvr = mfspr(SPRN_PVR);
-#endif
-       maj = (pvr >> 8) & 0xFF;
-       min = pvr & 0xFF;
-
-       seq_printf(m, "processor\t: %lu\n", cpu_id);
-       seq_printf(m, "cpu\t\t: ");
-
-       if (cur_cpu_spec->pvr_mask)
-               seq_printf(m, "%s", cur_cpu_spec->cpu_name);
-       else
-               seq_printf(m, "unknown (%08x)", pvr);
-
-#ifdef CONFIG_ALTIVEC
-       if (cpu_has_feature(CPU_FTR_ALTIVEC))
-               seq_printf(m, ", altivec supported");
-#endif /* CONFIG_ALTIVEC */
-
-       seq_printf(m, "\n");
-
-       /*
-        * Assume here that all clock rates are the same in a
-        * smp system.  -- Cort
-        */
-       seq_printf(m, "clock\t\t: %lu.%06luMHz\n", ppc_proc_freq / 1000000,
-                  ppc_proc_freq % 1000000);
-
-       seq_printf(m, "revision\t: %hd.%hd\n\n", maj, min);
-
-       preempt_enable();
-       return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
-       return *pos <= NR_CPUS ? (void *)((*pos)+1) : NULL;
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
-       ++*pos;
-       return c_start(m, pos);
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-struct seq_operations cpuinfo_op = {
-       .start =c_start,
-       .next = c_next,
-       .stop = c_stop,
-       .show = show_cpuinfo,
-};
-
-/*
- * These three variables are used to save values passed to us by prom_init()
- * via the device tree. The TCE variables are needed because with a memory_limit
- * in force we may need to explicitly map the TCE are at the top of RAM.
- */
-unsigned long memory_limit;
-unsigned long tce_alloc_start;
-unsigned long tce_alloc_end;
-
-#ifdef CONFIG_PPC_ISERIES
-/*
- * On iSeries we just parse the mem=X option from the command line.
- * On pSeries it's a bit more complicated, see prom_init_mem()
- */
-static int __init early_parsemem(char *p)
-{
-       if (!p)
-               return 0;
-
-       memory_limit = ALIGN(memparse(p, &p), PAGE_SIZE);
-
-       return 0;
-}
-early_param("mem", early_parsemem);
-#endif /* CONFIG_PPC_ISERIES */
-
-#ifdef CONFIG_PPC_MULTIPLATFORM
-static int __init set_preferred_console(void)
-{
-       struct device_node *prom_stdout = NULL;
-       char *name;
-       u32 *spd;
-       int offset = 0;
-
-       DBG(" -> set_preferred_console()\n");
-
-       /* The user has requested a console so this is already set up. */
-       if (strstr(saved_command_line, "console=")) {
-               DBG(" console was specified !\n");
-               return -EBUSY;
-       }
-
-       if (!of_chosen) {
-               DBG(" of_chosen is NULL !\n");
-               return -ENODEV;
-       }
-       /* We are getting a weird phandle from OF ... */
-       /* ... So use the full path instead */
-       name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
-       if (name == NULL) {
-               DBG(" no linux,stdout-path !\n");
-               return -ENODEV;
-       }
-       prom_stdout = of_find_node_by_path(name);
-       if (!prom_stdout) {
-               DBG(" can't find stdout package %s !\n", name);
-               return -ENODEV;
-       }       
-       DBG("stdout is %s\n", prom_stdout->full_name);
-
-       name = (char *)get_property(prom_stdout, "name", NULL);
-       if (!name) {
-               DBG(" stdout package has no name !\n");
-               goto not_found;
-       }
-       spd = (u32 *)get_property(prom_stdout, "current-speed", NULL);
-
-       if (0)
-               ;
-#ifdef CONFIG_SERIAL_8250_CONSOLE
-       else if (strcmp(name, "serial") == 0) {
-               int i;
-               u32 *reg = (u32 *)get_property(prom_stdout, "reg", &i);
-               if (i > 8) {
-                       switch (reg[1]) {
-                               case 0x3f8:
-                                       offset = 0;
-                                       break;
-                               case 0x2f8:
-                                       offset = 1;
-                                       break;
-                               case 0x898:
-                                       offset = 2;
-                                       break;
-                               case 0x890:
-                                       offset = 3;
-                                       break;
-                               default:
-                                       /* We dont recognise the serial port */
-                                       goto not_found;
-                       }
-               }
-       }
-#endif /* CONFIG_SERIAL_8250_CONSOLE */
-#ifdef CONFIG_PPC_PSERIES
-       else if (strcmp(name, "vty") == 0) {
-               u32 *reg = (u32 *)get_property(prom_stdout, "reg", NULL);
-               char *compat = (char *)get_property(prom_stdout, "compatible", NULL);
-
-               if (reg && compat && (strcmp(compat, "hvterm-protocol") == 0)) {
-                       /* Host Virtual Serial Interface */
-                       int offset;
-                       switch (reg[0]) {
-                               case 0x30000000:
-                                       offset = 0;
-                                       break;
-                               case 0x30000001:
-                                       offset = 1;
-                                       break;
-                               default:
-                                       goto not_found;
-                       }
-                       of_node_put(prom_stdout);
-                       DBG("Found hvsi console at offset %d\n", offset);
-                       return add_preferred_console("hvsi", offset, NULL);
-               } else {
-                       /* pSeries LPAR virtual console */
-                       of_node_put(prom_stdout);
-                       DBG("Found hvc console\n");
-                       return add_preferred_console("hvc", 0, NULL);
-               }
-       }
-#endif /* CONFIG_PPC_PSERIES */
-#ifdef CONFIG_SERIAL_PMACZILOG_CONSOLE
-       else if (strcmp(name, "ch-a") == 0)
-               offset = 0;
-       else if (strcmp(name, "ch-b") == 0)
-               offset = 1;
-#endif /* CONFIG_SERIAL_PMACZILOG_CONSOLE */
-       else
-               goto not_found;
-       of_node_put(prom_stdout);
-
-       DBG("Found serial console at ttyS%d\n", offset);
-
-       if (spd) {
-               static char __initdata opt[16];
-               sprintf(opt, "%d", *spd);
-               return add_preferred_console("ttyS", offset, opt);
-       } else
-               return add_preferred_console("ttyS", offset, NULL);
-
- not_found:
-       DBG("No preferred console found !\n");
-       of_node_put(prom_stdout);
-       return -ENODEV;
-}
-console_initcall(set_preferred_console);
-#endif /* CONFIG_PPC_MULTIPLATFORM */
-
-#ifdef CONFIG_IRQSTACKS
-static void __init irqstack_early_init(void)
-{
-       unsigned int i;
-
-       /*
-        * interrupt stacks must be under 256MB, we cannot afford to take
-        * SLB misses on them.
-        */
-       for_each_cpu(i) {
-               softirq_ctx[i] = (struct thread_info *)__va(lmb_alloc_base(THREAD_SIZE,
-                                       THREAD_SIZE, 0x10000000));
-               hardirq_ctx[i] = (struct thread_info *)__va(lmb_alloc_base(THREAD_SIZE,
-                                       THREAD_SIZE, 0x10000000));
-       }
-}
-#else
-#define irqstack_early_init()
-#endif
-
-/*
- * Stack space used when we detect a bad kernel stack pointer, and
- * early in SMP boots before relocation is enabled.
- */
-static void __init emergency_stack_init(void)
-{
-       unsigned long limit;
-       unsigned int i;
-
-       /*
-        * Emergency stacks must be under 256MB, we cannot afford to take
-        * SLB misses on them. The ABI also requires them to be 128-byte
-        * aligned.
-        *
-        * Since we use these as temporary stacks during secondary CPU
-        * bringup, we need to get at them in real mode. This means they
-        * must also be within the RMO region.
-        */
-       limit = min(0x10000000UL, lmb.rmo_size);
-
-       for_each_cpu(i)
-               paca[i].emergency_sp = __va(lmb_alloc_base(PAGE_SIZE, 128,
-                                               limit)) + PAGE_SIZE;
-}
-
-/*
- * Called from setup_arch to initialize the bitmap of available
- * syscalls in the systemcfg page
- */
-void __init setup_syscall_map(void)
-{
-       unsigned int i, count64 = 0, count32 = 0;
-       extern unsigned long *sys_call_table;
-       extern unsigned long *sys_call_table32;
-       extern unsigned long sys_ni_syscall;
-
-
-       for (i = 0; i < __NR_syscalls; i++) {
-               if (sys_call_table[i] == sys_ni_syscall)
-                       continue;
-               count64++;
-               systemcfg->syscall_map_64[i >> 5] |= 0x80000000UL >> (i & 0x1f);
-       }
-       for (i = 0; i < __NR_syscalls; i++) {
-               if (sys_call_table32[i] == sys_ni_syscall)
-                       continue;
-               count32++;
-               systemcfg->syscall_map_32[i >> 5] |= 0x80000000UL >> (i & 0x1f);
-       }
-       printk(KERN_INFO "Syscall map setup, %d 32 bits and %d 64 bits syscalls\n",
-              count32, count64);
-}
-
-/*
- * Called into from start_kernel, after lock_kernel has been called.
- * Initializes bootmem, which is unsed to manage page allocation until
- * mem_init is called.
- */
-void __init setup_arch(char **cmdline_p)
-{
-       extern void do_init_bootmem(void);
-
-       ppc64_boot_msg(0x12, "Setup Arch");
-
-       *cmdline_p = cmd_line;
-
-       /*
-        * Set cache line size based on type of cpu as a default.
-        * Systems with OF can look in the properties on the cpu node(s)
-        * for a possibly more accurate value.
-        */
-       dcache_bsize = ppc64_caches.dline_size;
-       icache_bsize = ppc64_caches.iline_size;
-
-       /* reboot on panic */
-       panic_timeout = 180;
-
-       if (ppc_md.panic)
-               notifier_chain_register(&panic_notifier_list, &ppc64_panic_block);
-
-       init_mm.start_code = PAGE_OFFSET;
-       init_mm.end_code = (unsigned long) _etext;
-       init_mm.end_data = (unsigned long) _edata;
-       init_mm.brk = klimit;
-       
-       irqstack_early_init();
-       emergency_stack_init();
-
-       stabs_alloc();
-
-       /* set up the bootmem stuff with available memory */
-       do_init_bootmem();
-       sparse_init();
-
-       /* initialize the syscall map in systemcfg */
-       setup_syscall_map();
-
-#ifdef CONFIG_DUMMY_CONSOLE
-       conswitchp = &dummy_con;
-#endif
-
-       ppc_md.setup_arch();
-
-       /* Use the default idle loop if the platform hasn't provided one. */
-       if (NULL == ppc_md.idle_loop) {
-               ppc_md.idle_loop = default_idle;
-               printk(KERN_INFO "Using default idle loop\n");
-       }
-
-       paging_init();
-       ppc64_boot_msg(0x15, "Setup Done");
-}
-
-
-/* ToDo: do something useful if ppc_md is not yet setup. */
-#define PPC64_LINUX_FUNCTION 0x0f000000
-#define PPC64_IPL_MESSAGE 0xc0000000
-#define PPC64_TERM_MESSAGE 0xb0000000
-
-static void ppc64_do_msg(unsigned int src, const char *msg)
-{
-       if (ppc_md.progress) {
-               char buf[128];
-
-               sprintf(buf, "%08X\n", src);
-               ppc_md.progress(buf, 0);
-               snprintf(buf, 128, "%s", msg);
-               ppc_md.progress(buf, 0);
-       }
-}
-
-/* Print a boot progress message. */
-void ppc64_boot_msg(unsigned int src, const char *msg)
-{
-       ppc64_do_msg(PPC64_LINUX_FUNCTION|PPC64_IPL_MESSAGE|src, msg);
-       printk("[boot]%04x %s\n", src, msg);
-}
-
-/* Print a termination message (print only -- does not stop the kernel) */
-void ppc64_terminate_msg(unsigned int src, const char *msg)
-{
-       ppc64_do_msg(PPC64_LINUX_FUNCTION|PPC64_TERM_MESSAGE|src, msg);
-       printk("[terminate]%04x %s\n", src, msg);
-}
-
-#ifndef CONFIG_PPC_ISERIES
-/*
- * This function can be used by platforms to "find" legacy serial ports.
- * It works for "serial" nodes under an "isa" node, and will try to
- * respect the "ibm,aix-loc" property if any. It works with up to 8
- * ports.
- */
-
-#define MAX_LEGACY_SERIAL_PORTS        8
-static struct plat_serial8250_port serial_ports[MAX_LEGACY_SERIAL_PORTS+1];
-static unsigned int old_serial_count;
-
-void __init generic_find_legacy_serial_ports(u64 *physport,
-               unsigned int *default_speed)
-{
-       struct device_node *np;
-       u32 *sizeprop;
-
-       struct isa_reg_property {
-               u32 space;
-               u32 address;
-               u32 size;
-       };
-       struct pci_reg_property {
-               struct pci_address addr;
-               u32 size_hi;
-               u32 size_lo;
-       };                                                                        
-
-       DBG(" -> generic_find_legacy_serial_port()\n");
-
-       *physport = 0;
-       if (default_speed)
-               *default_speed = 0;
-
-       np = of_find_node_by_path("/");
-       if (!np)
-               return;
-
-       /* First fill our array */
-       for (np = NULL; (np = of_find_node_by_type(np, "serial"));) {
-               struct device_node *isa, *pci;
-               struct isa_reg_property *reg;
-               unsigned long phys_size, addr_size, io_base;
-               u32 *rangesp;
-               u32 *interrupts, *clk, *spd;
-               char *typep;
-               int index, rlen, rentsize;
-
-               /* Ok, first check if it's under an "isa" parent */
-               isa = of_get_parent(np);
-               if (!isa || strcmp(isa->name, "isa")) {
-                       DBG("%s: no isa parent found\n", np->full_name);
-                       continue;
-               }
-               
-               /* Now look for an "ibm,aix-loc" property that gives us ordering
-                * if any...
-                */
-               typep = (char *)get_property(np, "ibm,aix-loc", NULL);
-
-               /* Get the ISA port number */
-               reg = (struct isa_reg_property *)get_property(np, "reg", NULL); 
-               if (reg == NULL)
-                       goto next_port;
-               /* We assume the interrupt number isn't translated ... */
-               interrupts = (u32 *)get_property(np, "interrupts", NULL);
-               /* get clock freq. if present */
-               clk = (u32 *)get_property(np, "clock-frequency", NULL);
-               /* get default speed if present */
-               spd = (u32 *)get_property(np, "current-speed", NULL);
-               /* Default to locate at end of array */
-               index = old_serial_count; /* end of the array by default */
-
-               /* If we have a location index, then use it */
-               if (typep && *typep == 'S') {
-                       index = simple_strtol(typep+1, NULL, 0) - 1;
-                       /* if index is out of range, use end of array instead */
-                       if (index >= MAX_LEGACY_SERIAL_PORTS)
-                               index = old_serial_count;
-                       /* if our index is still out of range, that mean that
-                        * array is full, we could scan for a free slot but that
-                        * make little sense to bother, just skip the port
-                        */
-                       if (index >= MAX_LEGACY_SERIAL_PORTS)
-                               goto next_port;
-                       if (index >= old_serial_count)
-                               old_serial_count = index + 1;
-                       /* Check if there is a port who already claimed our slot */
-                       if (serial_ports[index].iobase != 0) {
-                               /* if we still have some room, move it, else override */
-                               if (old_serial_count < MAX_LEGACY_SERIAL_PORTS) {
-                                       DBG("Moved legacy port %d -> %d\n", index,
-                                           old_serial_count);
-                                       serial_ports[old_serial_count++] =
-                                               serial_ports[index];
-                               } else {
-                                       DBG("Replacing legacy port %d\n", index);
-                               }
-                       }
-               }
-               if (index >= MAX_LEGACY_SERIAL_PORTS)
-                       goto next_port;
-               if (index >= old_serial_count)
-                       old_serial_count = index + 1;
-
-               /* Now fill the entry */
-               memset(&serial_ports[index], 0, sizeof(struct plat_serial8250_port));
-               serial_ports[index].uartclk = clk ? *clk : BASE_BAUD * 16;
-               serial_ports[index].iobase = reg->address;
-               serial_ports[index].irq = interrupts ? interrupts[0] : 0;
-               serial_ports[index].flags = ASYNC_BOOT_AUTOCONF;
-
-               DBG("Added legacy port, index: %d, port: %x, irq: %d, clk: %d\n",
-                   index,
-                   serial_ports[index].iobase,
-                   serial_ports[index].irq,
-                   serial_ports[index].uartclk);
-
-               /* Get phys address of IO reg for port 1 */
-               if (index != 0)
-                       goto next_port;
-
-               pci = of_get_parent(isa);
-               if (!pci) {
-                       DBG("%s: no pci parent found\n", np->full_name);
-                       goto next_port;
-               }
-
-               rangesp = (u32 *)get_property(pci, "ranges", &rlen);
-               if (rangesp == NULL) {
-                       of_node_put(pci);
-                       goto next_port;
-               }
-               rlen /= 4;
-
-               /* we need the #size-cells of the PCI bridge node itself */
-               phys_size = 1;
-               sizeprop = (u32 *)get_property(pci, "#size-cells", NULL);
-               if (sizeprop != NULL)
-                       phys_size = *sizeprop;
-               /* we need the parent #addr-cells */
-               addr_size = prom_n_addr_cells(pci);
-               rentsize = 3 + addr_size + phys_size;
-               io_base = 0;
-               for (;rlen >= rentsize; rlen -= rentsize,rangesp += rentsize) {
-                       if (((rangesp[0] >> 24) & 0x3) != 1)
-                               continue; /* not IO space */
-                       io_base = rangesp[3];
-                       if (addr_size == 2)
-                               io_base = (io_base << 32) | rangesp[4];
-               }
-               if (io_base != 0) {
-                       *physport = io_base + reg->address;
-                       if (default_speed && spd)
-                               *default_speed = *spd;
-               }
-               of_node_put(pci);
-       next_port:
-               of_node_put(isa);
-       }
-
-       DBG(" <- generic_find_legacy_serial_port()\n");
-}
-
-static struct platform_device serial_device = {
-       .name   = "serial8250",
-       .id     = PLAT8250_DEV_PLATFORM,
-       .dev    = {
-               .platform_data = serial_ports,
-       },
-};
-
-static int __init serial_dev_init(void)
-{
-       return platform_device_register(&serial_device);
-}
-arch_initcall(serial_dev_init);
-
-#endif /* CONFIG_PPC_ISERIES */
-
-int check_legacy_ioport(unsigned long base_port)
-{
-       if (ppc_md.check_legacy_ioport == NULL)
-               return 0;
-       return ppc_md.check_legacy_ioport(base_port);
-}
-EXPORT_SYMBOL(check_legacy_ioport);
-
-#ifdef CONFIG_XMON
-static int __init early_xmon(char *p)
-{
-       /* ensure xmon is enabled */
-       if (p) {
-               if (strncmp(p, "on", 2) == 0)
-                       xmon_init(1);
-               if (strncmp(p, "off", 3) == 0)
-                       xmon_init(0);
-               if (strncmp(p, "early", 5) != 0)
-                       return 0;
-       }
-       xmon_init(1);
-       debugger(NULL);
-
-       return 0;
-}
-early_param("xmon", early_xmon);
-#endif
-
-void cpu_die(void)
-{
-       if (ppc_md.cpu_die)
-               ppc_md.cpu_die();
-}