Fix race conditions for read_c0_entryhi. Remove broken ASID masks in
tlb-sb1.c. Make tlb-r4k.c and tlb-sb1.c more similiar and more efficient.

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

Remove useless casts.  Fix formatting.

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

Fix 64bit SMP TLB handler and stack frame handling, optimize 32bit SMP
TLB handlers a bit, match definitions in pgtable-{32,64}.h better.

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

HUB interrupts are allocated per node, not per slice.  Make
manipulation of the interrupt mask register atomic by disabling
interrupts.

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

HUB interrupts are allocated per node, not per slice.  Make manipulation
of the interrupt mask register atomic by disabling interrupts.

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

R4300 delay slot.

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

Use compat_sigval_t in struct compat_siginfo.

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

SECCOMP for MIPS.

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

Reformat; cosmetic cleanups.

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

Reformatting, remove debugging code.

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

Get rid of the the remains of 2.4-style ramdisk support.

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

Multithreaded core dumps.

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

When CONFIG_PM is enabled, it uses the TOY_MATCH2 interrupt as the system
timer tick. Prior to this patch, if IDE IRQ probing occured, then the
TOY_MATCH2 interrupt would be permanently disabled, and no system timer
tick occurs. This patch corrects this situation by correctly registering
the TOY_MATCH2 interrupt so that IDE IRQ probing doesn't have adverse
side effects.

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

sys_futex has 6 arguments.

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

qtronix.c: Handle kmalloc failure.

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

Export shm_align_mask and flush_data_cache_page.

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

Put salone.o back into arclib.  It's a lib so doesn't harm if unused atm.

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

It helps to not use a _mem_ function for requesting I/O space.

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

Gcc 4.0 fixes.

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

Use new txx9 serial driver.

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

Fix preemption bug.

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

Int controller fixes.

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

One definition of back_to_back_c0_hazard too much.

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

Sparseify MIPS.

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

On 24K we did always disable cache parity protection - obviously not
the greatest thing to do.  Try to enable parity protection, check if
we actually succeeded and print a message about the outcome of this.

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

New hazard handling function back_to_back_c0_hazard() to handle back to
back mtc0 / mfc0 pairs from the same coprocessor register.

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

ISOify.

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

Moved irq_tab_alchemy to the board specific irqmap.c files.
Cleaned up a to of warnings in dbdma.c.

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

Base Au1200 2.6 support.

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

Fix 'prctl' system call for IRIX. At this point IRIX 5.3 static binaries
are now working for 80% of the ones I have tried. The other ones that do
not work all fail in the same way with the same messages. Once that bug
is tracked down, we should be in good shape. Task locking still needs
some work.

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

Gross macro abuse.  Get rid of gpreg_t, vaddr_t, REG_TO_VA and
VA_TO_REG.  Who ever wrote this apparently did enjoy the C Puzzle Book.
ISBN 0201604612, a little old but still fun reading for the next
blackout ;)

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

Cleanup fpuemuprivate declarations.

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

Convert struct hw_interrupt_type initializations to ISO C99 named
initializers.

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

No barrier needed on au1x.

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

Comment correction after further investigation of issue.

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

Fix initialization. Unbreak the wait-for-completion loops. Code cleanup.

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

Switch SiByte drivers back to __raw_*() functions.

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

Define mem_*() I/O accessory functions that preserve byte addresses.
Add missing ____raw_*q() functions.

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

Merge do_boot_cpu() into the new style __cpu_up().

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

On multiprocessor systems the BogoMIPS for each CPU was reported was
the value for the last CPU having calibrated it's delay loop.

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

Define MAP_BASE for IP27

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

Resurrect Cobalt support for 2.6.

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

Enable/disable irq's only if needed.

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

-nostdlib boilerplate.

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

Fix compilation, and bring 32/64 bit variants more in line.

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

Fix wchan implementation, based on earlier by from Atsushi Nemoto.

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

Improved modules loader, more robust and works on 64bit kernels.

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

Until I figure out why NFS filesystems are having problems with
the 'load_irix_binary' and having kernel faults, Irix support is
disabled. I suspect locking of some sort, but I will now have to
investigate further.

Static IRIX binaries are now being detected properly and are using the
ELF interpreter found in this file.

Signed-off-by: Steven J. Hill <sjhill@realitydiluted.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Initialize iomem_resource.

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

Handle addresses beyond VMALLOC_END correctly.

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

Use intermediate variable.

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

O2 doesn't have _that_ much RAM.

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

Changed all Au1x boards to noncoherent again.

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

32-bit compatibility for various timer-related system calls.

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

Update to match the native siginfo structure and code.

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

32-bit compatibility for ptrace GETEVENTMSG operation.

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

Implement 32-bit compatibility for waitid(2).

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

Waitid(2) now has 5 arguments.

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

Use generic compat_sys_wait4 to implement 32-bit wait4(2).

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

Allocate break code 513 to KDB.

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

Replace the complicated and broken attempt to clean interrupt by
something simple - doesn't need to be fast, after all.

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

If you want RM7000 better fix it to build first ...

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

It's unwise to disable all interrupts of the boot node ;-)

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

Rewrite to avoid the use of $at.  Unfortunately binutils 2.15 and CVS
binutils are broken and don't warn about this use of $at even though
gas is in .set noat mode so this for now is an accident waiting to
happen.

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

Enable RM7000 secondary cache for Atlas and Malta boards.

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

Moves a test which determines if we actually need to perform a
cacheflush to the right place.  That's a bug which is harmless on UP
but a severe bug on SMP.

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

Update MIPS to use the 4-level pagetable code thereby getting rid of
the compacrapability headers.

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

Document why calling smp_call_function will deadlock when called with
interrupts disabled.

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

Fix ptrace aliasing issue in copy_from_user_page / copy_to_user_page.

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

25Kf is also physically indexed.

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

Add a few more PrId vendor IDs.

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

20Kc and SB1 don't suffer from aliases.

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

Delete duplicate copy of fixrange_init.

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

rm9000_init() really is __init code.

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

Use preempt_schedule_irq.

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

More oprofile bits for MIPS32-style performance counters.  The code to
bolt this into the actual hardware interrupt is yet missing from this
commit.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 FEXPORT(ret_from_fork)

It works better when including arch/mips/sgi-ip27/Kconfig ...

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

Move missplaced code line to the right place.

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

Provide functions to access cop0 config4-7 registers

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

Use hardware mechanism to deal with cache aliases in the 24K.

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

Remove old wrong bits of cache code.

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

Clean up SEAD interrupt initialization.

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

Mask and ack CPU interrupts upon initialization.  Keep the state
of software interrupts when unmasking.

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

Move Sibyte Kconfig stuff into it's own Kconfig.

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

Replace deprecated interruptible_sleep_on() function call with direct
wait-queue usage.

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

Define __raw_read_can_lock / __raw_write_can_lock.

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

Update descriptions for MIPS Technologies evaluation boards.

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

Reenable EARLY_PRINTK for the DECstation.

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

Formatting fixes.

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

Fix compilation; by Manish Lachwani.

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

Fixes for system controllers for Atlas/Malta core cards.

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

Actually route cPCI interrupts.  Update inaccurate comments.

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

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fix TASK_SIZE for 32-bit processes on 64-bit kernels.

Fix register layout in o32 core dumps on 64-bit systems.

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

Get rid of early_init.  There's more need to make this form of
initialization actually useful and as is certainly unmergable with
upstream.

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

Dummy ISA DMA functions for systems that don't have ISA but share
drivers with ISA such as legacy free PCI.

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

Fix build with SMP disabled and preemption enabled.

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

Move the invalid pmd and pte tables from .data to .bss. Fix alignment.

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

Remove unused arguments from preempt_{start,stop}/local_irq_{en,dis}able.
Don't clobber the preloaded TI_FLAGS in a2 needlessly.
Unexport local functions.

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

Fix typos and formatting.

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