f65e4fa8e0
[MIPS] Improve branch prediction in ll/sc atomic operations.
...
Now that finally all supported versions of binutils have functioning
support for .subsection use .subsection to tweak the branch prediction
I did not modify the R10000 errata variants because it seems unclear if
this will invalidate the workaround which actually relies on the cheesy
prediction of branch likely to cause a misspredict if the sc was
successful.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2007-02-13 22:40:50 +00:00
2d911e9a4e
[MIPS] Move die and die_if_kernel() from system.h to ptrace.h
...
This eleminates the need to include ptrace.h into system.h and fixes a
harmless namespace conflict on the PC symbol in bpck.c.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-12-10 21:52:11 +00:00
0004a9dfea
[MIPS] Cleanup memory barriers for weakly ordered systems.
...
Also the R4000 / R4600 LL/SC instructions imply a sync so no explicit sync
needed.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-12-04 22:43:14 +00:00
904880e717
[MIPS] Don't use R10000 llsc workaround version for all llsc-full processors.
...
Found and original patch by bile@landofbile.com .
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-11-02 17:23:33 +00:00
52393ccc0a
[PATCH] remove set_wmb - arch removal
...
set_wmb should not be used in the kernel because it just confuses the
code more and has no benefit. Since it is not currently used in the
kernel this patch removes it so that new code does not include it.
All archs define set_wmb(var, value) to do { var = value; wmb(); }
while(0) except ia64 and sparc which use a mb() instead. But this is
still moot since it is not used anyway.
Hasn't been tested on any archs but x86 and x86_64 (and only compiled
tested)
Signed-off-by: Steven Rostedt <rostedt@goodmis.org >
Signed-off-by: Linus Torvalds <torvalds@osdl.org >
2006-07-14 21:56:14 -07:00
192ef36619
[MIPS] TRACE_IRQFLAGS_SUPPORT support.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-07-13 21:26:09 +01:00
62c4f0a2d5
Don't include linux/config.h from anywhere else in include/
...
Signed-off-by: David Woodhouse <dwmw2@infradead.org >
2006-04-26 12:56:16 +01:00
f088fc84f9
[MIPS] FPU affinity for MT ASE.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-04-19 04:14:28 +02:00
91b05e6776
[MIPS] Fix vectored interrupt support in TLB exception handler generator.
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-04-19 04:14:13 +02:00
b4d05cb9cb
[MIPS] Make set_vi_srs_handler static.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-04-19 04:14:12 +02:00
0cea043b56
[MIPS] Reformat __xchg().
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-03-21 13:27:47 +00:00
3e6cb2d38a
[MIPS] Use "=R" constraint to avoid compiler errors in cmpxchg().
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-02-27 17:30:35 +00:00
40bc9c671a
[PATCH] mips: task_pt_regs()
...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk >
Signed-off-by: Andrew Morton <akpm@osdl.org >
Signed-off-by: Linus Torvalds <torvalds@osdl.org >
2006-01-12 09:08:58 -08:00
4dc7a0bbeb
[PATCH] sched: add cacheflush() asm
...
Add per-arch sched_cacheflush() which is a write-back cacheflush used by
the migration-cost calibration code at bootup time.
Signed-off-by: Ingo Molnar <mingo@elte.hu >
Cc: Nick Piggin <nickpiggin@yahoo.com.au >
Signed-off-by: Andrew Morton <akpm@osdl.org >
Signed-off-by: Linus Torvalds <torvalds@osdl.org >
2006-01-12 09:08:49 -08:00
178086c86a
Don't print file name and line in die and die_if_kernel.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:32:42 +01:00
f99d3023f3
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 >
2005-10-29 19:32:11 +01:00
fabffc13ed
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 >
2005-10-29 19:32:11 +01:00
3fd5646cac
Add missing space.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:32:05 +01:00
e01402b115
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 >
2005-10-29 19:31:53 +01:00
7222424e2e
More .set to keep 32-bit processors happy.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:31:33 +01:00
c4559f67b7
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 >
2005-10-29 19:31:31 +01:00
260c96738c
Mark __die() "noreturn" for real.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:31:26 +01:00
aac8aa7717
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 >
2005-10-29 19:31:22 +01:00
e50c0a8fa6
Support the MIPS32 / MIPS64 DSP ASE.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:31:17 +01:00
875d43e72b
[PATCH] mips: clean up 32/64-bit configuration
...
Start cleaning 32-bit vs. 64-bit configuration.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
Signed-off-by: Andrew Morton <akpm@osdl.org >
Signed-off-by: Linus Torvalds <torvalds@osdl.org >
2005-09-05 00:06:06 -07:00
Ralf Baechle
Steven Rostedt
David Woodhouse
Al Viro
Ingo Molnar
Maciej W. Rozycki