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>

Useless includes of everything, the kitchen sink and version.h ...

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

Arrested for multiple offences of header file inclusion.

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

We pass a kernel pointer to do_sigaltstack in sys32_sigaltstack, so
we need to do the set_fs(KERNEL_DS) thing around this call.

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

NPTL, round one.

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

Build fix for certain configurations.

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

Fix BogoMIPS display on UP and some minor cosmetical things.

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

fcntl64 needs to be wrapped for n32.

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

Fix one more case of computing the return EPC after the registers have
already been modified.

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

When simulating ll/sc compute the return EPC before modifying the
registers.

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

Use fixed up pfn.

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

Detect the 4KEcR2 and for now detect handle it like the 4KEc.

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

Fixed buglet with previous patch that broke non au1x builds.

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

Remove CONFIG_PM dependency from au1x wait in cpu_probe.
Additional work necessary to completely remove that config option.

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

Au1100 FB driver uplift for 2.6.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Antonino Daplas <adaplas@pol.net>