Protect against multiple inclusion.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Remove useless casts of kmalloc return values.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Hack to resolve longstanding prefetch issue

Prefetching may be fatal on some systems if we're prefetching beyond the
end of memory on some systems.  It's also a seriously bad idea on non
dma-coherent systems.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

More foolproofing of the CPU configuration.

Limit the number of cpu type options in the cpu menu to just those
types that are actually available for the select platform.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

pci-expmem-hack

CFE 1.2.5 and earlier fails to turn on the ExpMemEn bit in the
PCIFeatureControl register, which means that DMA does not work
beyond physical address 01_0000_0000, ergo to DRAM beyond 1GB.

With ExpMemEn turned on, 01_0000_0000-0f_ffff_ffff is mapped,
so DMA works for up to 61 GB of DRAM.

Will be fixed in CFE 1.2.6 (yet to be released).

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

BCM1480 HT support

PCI support code for PLX 7250 PCI-X tunnel on BCM91480B BigSur board.

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Support for the BCM1480 on-chip PCI-X bridge.

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

SB1 cache exception handling.

Expand SB1 cache error handling by adding SB1_CEX_ALWAYS_FATAL and
SB1_CEX_STALL, allowing configurable behavior on cache errors.

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Support for BigSur board.

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for BCM1480 family of chips.

 - Kconfig and Makefile changes
 - arch/mips/sibyte/bcm1480/
 - changes to sibyte common code to support 1480

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add support for SB1A CPU.

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Sibyte header cleanup

Update sibyte headers to match Broadcom internal copies:
 - comment cleanup and updates
 - fix LittleSur part number to match the board silkscreen

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

BCM1480 headers

Add header files for BCM1480/1280/1455/1255 family of chips, and
update sb1250 headers which are shared by BCM1480 family.

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/sibyte/bcm1480_int.h b/include/asm-mips/sibyte/bcm1480_int.h
new file mode 100644

Sibyte fixes

Fix typo in cpu_probe_sibyte.

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Make UL what should be UL.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix zero length sys_cacheflush

Cacheflush(0, 0, 0) was crashing the system.  This is because
flush_icache_range(start, end) tries to flushing whole address space
(0 - ~0UL) if both start and end are zero.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Get 64-bit right in the kgdb stub.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Sys_lookup_dcookie arguments occupy 4 argument slots.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

FPU emulator garbage collection.

First argument of fpu_emulator_cop1Handler() was unused.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Don't print file name and line in die and die_if_kernel.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Rename page argument of flush_cache_page to something more descriptive.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Define EOWNERDEAD and ENOTRECOVERABLE.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Sliceup Kconfig; it's grown too large.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

More configcheck fixes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2.6.14-rc1 updates for MIPS compat types.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Complete the fcntl.h cleanup.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Cleanup Sibyte Kconfig a bit further.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Date:   Fri Jan 14 03:03:23 2005 +0000

Locking cleanups.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix weirdness in <asm/bug.h>

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix wrong comment.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fixup a few lose ends in explicit support for MIPS R1/R2.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Document the meaning of the CPU_MIPS32, CPU_MIPS64, CPU_MIPSR1 and
CPU_MIPSR2.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Protect manipulation of c0_status against preemption and multithreading.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Detect 4KSD and treat it like 4KSc.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

We're no longer hosted on oss for ages ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Convert the remaining SPIN_LOCK_UNLOCKED instances to DEFINE_SPINLOCK.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Define and initialize kdb_lock using DEFINE_SPINLOCK.
Convert kgdb_cpulock into a raw_spinlock_t.

SPIN_LOCK_UNLOCKED is deprecated and it's replacement DEFINE_SPINLOCK is
not suitable for arrays of spinlocks.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Make kgdb_wait static.

Nothing outside gdb-stub.c uses kgdb_wait, so change it's definition to
static.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Don't copy SB1 cache error handler to uncached memory.

This may have made sense on a paranoid day with pass 1 BCM1250 processors
that were throwing cache error exception left and right for no good
reason.  On modern silicion that hardly makes sense and the code had
gotten just an obscurity ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Provide 64-bit address space definitions for the Sibyte SB1 CPU core.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

No need to explicitly call __read_64bit_c0_split; __read_64bit_c0_register
will do that itself iff needed.  Fix format string.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix stale comment in c-sb1.c.

Signed-Off-By: Andrew Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Cleanup the mess in cpu_cache_init.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Use cpumask_t rather than hand-rolled bitmask code in sb1250_set_affinity.

Signed-Off-By: Andrew Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Use R4000 TLB routines for SB1 also.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix build error caused by missmatching duplicate declaration.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Don't call memset to clean irq_desc; these data fields have already
previously been initialized statically in kernel/irq/handle.c.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix ARCH_KMALLOC_MINALIGN values on MIPS

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Support for MIPSsim, the cycle accurate MIPS simulator.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Switch Sibyte profiling driver to ->compat_ioctl

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Revise MIPS 64-bit ptrace interface

Change the N32 debugging ABI to something more sane, and add support
for o32 and n32 debuggers to trace n64 programs.

Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Sync c-tx39.c with c-r4k.c.

tx39_flush_cache_range() does nothing if !cpu_has_dc_aliases.  It should
flush d-cache and invalidate i-cache since the TX39(H2) has separate I/D
cache.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Glue again after removal of BUILD_BUG().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Let it compile again after i2c algo id removal. Sort headers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

SMP on Malta needs to define ARCH_HAS_IRQ_PER_CPU since 2.6.14-rc1.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/mach-mips/irq.h b/include/asm-mips/mach-mips/irq.h
new file mode 100644

smc91x platform support; requires patch to smc91x.h which was sent
upstream.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Au1[12]00 mmc driver. Only tested on the Au1200 at this point though
it should work on the Au1100 as well. Updated defconfig to include driver.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add SOCK_DCCP definition for MIPS also.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The type of sum in csum_tcpudp_nofold is "unsigned int", so when we assign
to it in an asm() block, and we're running on a system with 64-bit
registers, it is vitally important that we sign extend it correctly before
returning to C.  Otherwise the stray high bits will be preserved into
csum_fold, and on the SB-1 processor, 32-bit arithmetic on a non
sign-extended register will yield surprising results.

This caused incorrect checksums in some UDP packets for NFS root.  The
problem was mild when using a 10.0.1.x IP address, but severe when
using 192.168.1.x.

Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Kernel gpio/2 routines that will be used by some drivers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix a cache snooping issue.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Updated pcmcia driver with pb1200 and db1200 support.
Updated db1200_defconfig so pcmcia is enabled by default.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

- moved platform structure to platform.c
- fixed an iounmap warning
- export fixup_xx, needed by the module

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix excessive signal latencies.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Reorder & reformat a bit.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Use ARCH_MAY_HAVE_PC_FDC where needed.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

GCC bulletproofing: __mips64 is only defined when compiling for 64-bit
processors.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

The values for SO_SNDBUFFORCE / SO_RCVBUFFORCE were already taken ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Futexes for MIPS, for the time being only the R10000_LLSC_WAR version.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Define pcibus_to_node() for IP27.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Cleaned up AMD Au1200 IDE driver:
- converted to platform bus
- removed pci dependencies
- removed virt_to_phys/phys_to_virt calls

System now can root off of a disk.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/Documentation/mips/AU1xxx_IDE.README b/Documentation/mips/AU1xxx_IDE.README
new file mode 100644

Misc au1200 updates.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Delete the SABLE_RTL case.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

When no yamon command line is passed to the kernel, preserve the default
compiled in command line.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Provide MODULE_ARCH_VERMAGIC for MIPS.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Add/Fix missing bit of R4600 hit cacheop workaround.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Minor code cleanup.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

R4600 v2.0 needs a nop before tlbp.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Don't set up a sg dma address if we have no page address for some reason.
Code cleanup.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Move MIPS Technologies processor IDs to where they belong.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

More .set push/pop.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Move genrtc.c's functions into <asm/rtc.h>

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Let r4600 PRID detection match only legacy CPUs, cleanups.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Define some more common ip22 CPU features.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Typo fix.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

More .set push/pop encapsulation, more eyefriendly code formatting.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix MAP_BASE for 64bit ip22.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

IP22 EISA support update.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Handle mtc0 - tlb write hazard for VR5432.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Make static what ought to be static.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Sprinkle a few more .set mipsX over xchg to make sure we dont' end up with
64-bit instructions on 32-bit processors, they tend to be unhappy about
that kind of food ;-)

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Get rid of a bunch of debug serial routines. Use prom_printf instead.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Remove workaround for binutils 2.15 assembler bug; this version is not
suitable to reliably build kernels anymore anyway and 2.16 has this
fixed.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Drop might_sleep() calls from get_user() & co.  This should fix the issue
in http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=200508171321.20094.Joshua.Wise%40sicortex.com and it's the right thing to do anyway because
it was inflating those functions way too much.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Virtual SMP support for the 34K.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

MT bulletproofing.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

On CONFIG_64BIT_PHYS_ADDR, pfn always fits in 'unsigned long', but
pfn<<PAGE_SHIFT sometimes extends beyond.  The pte is big enough to hold
'long long', but the shift in pfn_pte() needs to do its calculation with
enough bits to hold the result.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Fix parenthesis in macros.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Do the timer interrupt only once on CPU 0 ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Define cpu_icache_snoops_remote_store.  This is slight abuse of something
which originally was meant for SMP cache managment but it can be argued
to apply on the 34K as well.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>