Au1x PM fixes.

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

Drop IP27 support for Qlogic ISP.  This driver is buggy and has been
obsoleted by the qla1280 after the recent fixes.

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

Make sure that the processor is actually online or die spectacularly.

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

Avoid SMP cacheflushes.  This is a minor optimization of startup but
will also avoid smp_call_function from doing stupid things when called
from a CPU that is not yet marked online.

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

Philips PNX8550 support: MIPS32-like core with 2 Trimedias on it.

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

More AP / SP bits for the 34K, the Malta bits and things.  Still wants
a little polishing.

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

Cleanups.

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

Move Origin crapola into a machine-specific header file.

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

Prevent gcc from optimizing a few functions away completly.

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

Detect the MIPS R2 vectored interrupt, external interrupt controller
options and the precense of the MT ASE.

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

Macros to access the register of processors using the new MIPS
Multithreading ASE, also know as MT ASE.

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

Fix the fixup_bigphys_addr compile problem.

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

Removed __ilog2 since it's no longer needed and conflicts with the
generic one.

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

A few more macros to access MIPS R2 architecture registers.

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

New kernel option nowait allows disabling the use of the wait instruction.

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

Use an irq_enable_hazard hazard barrier in unmask_mips_irq.  This
hasn't been an actual bug, so it's more a change to be 100% compliant
with the requirements of the architecture spec.  Similar fix to
mask_mips_irq where there was a slightly less theoretical chance of
getting hit.

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

Add EF_MIPS_ARCH_32R2 and EF_MIPS_ARCH_64R2 for tagging of R2 binaries.

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

Add a few more SHN_MIPS_* symbols from glibc.

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

Add inotify syscalls for MIPS.

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

Mark a few variables __read_mostly.

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

MIPS R2 instruction hazard handling.

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

Detect the 34K.

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

Generate code for MIPS32 / MIPS64 Release 2 if configured for one of
these architectures.

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

Use ei / di MIPS32 R2 instructions if available.

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

MIPS 32/64 R2 config option.

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

Use clz / dclz on MIPS32 / MIPS64 processors.

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

In pcibios_enable_resources go back to handling all PCI_NUM_RESOURCES
resources.  We tried previous but ran into problems ...

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

Use Kconfig.preempt.

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

Define kmap_atomic_pfn() for MIPS.

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

Setup_frame is now returning a success value.

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

Temporary hack for Qemu and MIPSsim until they get a proper ELF loader.

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

Fix endianess bugs.

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

Date:   Fri Jul 8 20:10:17 2005 +0000

Those literals are long.

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

Protect noat assembly with .set push/pop and make it somewhat readable.

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

Fix get_saved_sp for 64bit address space. Simplify set_save_sp.

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

IP30 Identification.

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

... and it isn't a canonicalized triplet but just the n-plet used to
configure gcc.

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

Grep deesn't like shell-style matching...

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

Hack to make compiles for the other endianness easier.

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

Rename CONFIG_CPU_MIPS{32,64} to CONFIG_CPU_MIPS{32|64}_R1.

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

Don't redeclare ll_local_timer_interrupt.

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

Brian Murphy says:
    this fixes Lasat pci to work with multi-function devices by assigning
    the correct values based on pin number (instead of ignoring them).

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

Code cleanup, thanks Brian Murphy.

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

Use physical addresses at the interface level, letting drivers remap
them as appropriate.

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

Prevent 64-bit constants from being cropped to 32 bits when used in C code.

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

Avoid tlbw* hazards for the R4600/R4700/R5000.

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

Inline ioremap() calls for constant addresses that map to KSEG1.

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

Avoid defining variables in the middle of a block which breaks older
compilers.

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

More .set to keep 32-bit processors happy.

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

Fix the diagnostic dump for the XTLB refill handler.

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

Fix a diagnostic message.

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

Conversion to plat_setup() for TX4927 also.

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

Using get_nasid() to find the console node will blow up nicely if
called on a another node than the console node, so use the master_nasid
instead and in the unlikely case that one isn't initialized yet, fall
back to get_nasid().

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

Always use ".set mips3" rather than select between "mips2" or "mips3"
for assembling ll/sc sequences to avoid problems with 64-bit
configurations.

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

Actual handlers for bus errors for Pmax and 3min.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/dec/kn01-berr.c b/arch/mips/dec/kn01-berr.c
new file mode 100644

System-specific handling of bus errors for DECstation variations
supporting parity errors only for memory (Pmax/3min/Maxine).
Fixes for resources decoded by the KN04/KN05 MB ASIC.  Additional
clean-ups for the ECC handler.

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

Use correct names for bits in the R3k cp0.status register.

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

Get the thing to compile again ...

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

Use macros for the RM7k cp0.config bits instead of magic numbers.
Minor clean-ups.

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

Fix types for firmware arguments.  Don't define unneeded messages.

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

Remove left-over unused bits.

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

Mark __die() "noreturn" for real.

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

Fix function types to ones appropriate for initcalls.

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

GCC 4.0.0 broke `attribute(("alias"))' -- resort to an assembly variant.

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

Deal with the bloody KSEG vs CKSEG horror...

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

There is NO port I/O space on the DECstation.  Minor clean-ups.

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

Redo RM9000 workaround which along with other DSP ASE changes was
causing some headache for debuggers knowing about signal frames.

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

Enable a suitable ISA for the assembler around ll/sc so that code
builds even for processors that don't support the instructions.
Plus minor formatting fixes.

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

Optimize R3k TLB Load/Store/Modified handlers, by scheduling
delay slots properly and avoiding an unnecessary jump to a jump.

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

Fill R3k load delay slots properly.

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

Only dump instructions actually emitted.

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

dec_esp: Use physical addresses

These should really be addresses obtained with ioremap() or some
bus-specific backend, but for now...

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

This interrupt is *always* handled -- MIPS_BE_DISCARD just means
no further action wanted.

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

Fix dependencies for DECstation framebuffers.

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

Remove dead code which was causing warnings.

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

For MIPS32/MIPS64 cp0.config.mt == 1 implies a standard (R4k-style)
TLB, so no need to set it separately for each implementation.

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

The DbAu1500 board also support big endian. Gee, imagine that.

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

Fix build with CONFIG_PRINTK disabled.

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

Support the MIPS32 / MIPS64 DSP ASE.

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

64-bit fixes for Alchemy code ;)

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

Fix build for CONFIG_BUG=n.  Yes, bugs are now a compile time option ;-)

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

When building for Atlas, Malta or SEAD convert the kernel to srecs by
default.

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

Fix tasteless #ifdef mess in audit_arch(), minor cleanups.

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

Bugs are now a configuration option.

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

On MIPS the struct sigev preamble is only 8 bytes.

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

Now that a struct is the only member left in struct
mips_fpu_emulator_stats cleanup that unnecessary nesting of structs.

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

Get rid of the eir struct mips_fpu_emulator_private member.  It's
never initialized been initialized anywhere, just saved to and
restored from signal frames so nonsense anyway.  As neat side effect
of being shared between all processors it was also abusable as a
nice covert channel between processes.

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

__compute_return_epc() uses CFC1 instruction which might result in a
coprocessor unusable exception since the process can lose its fpu
context by preemption.

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

sys_nfsservctl() needs translation.

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

No point in checking cpu_has_tlb before we've computed the CPU options.
So for now we just unconditionally set the option - Linux wouldn't
work without a TLB anyway.

Setting MIPS_CPU_4KTLB was missing for Alchemy and Sandcraft, add that
back.

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

Cleanup decoding of MIPSxx config registers.

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

Fix preemption and SMP problems in the FP emulator code.

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

Handle _PAGE_DIRTY correctly for CONFIG_64BIT_PHYS_ADDR on 32bit CPUs.

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

Better interface to run uncached cache setup code.

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

* use 'unsigned long' as address supplied to au_write[bwl]()
* remove two already unused and commented structures
* added an ULL suffix to several address constants that use bits 35-32

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

Fix D-cache aliasing problem in the PIO IDE driver potencially resulting
in the kernel or userspace seeing stale data.

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

Fix a few build warnings.

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

Need to include smp.h for the definition of smp_processor_id().

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

Ustat needs a wrapper on n32.

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

Move sync into the delay slot here also.

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