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037f0eed57
linux/arch/powerpc/math-emu
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Kevin Hao 037f0eed57 powerpc: Make flush_fp_to_thread() nop when CONFIG_PPC_FPU is disabled 
In the current kernel, the function flush_fp_to_thread() is not
dependent on CONFIG_PPC_FPU. So most invocations of this function
is not wrapped by CONFIG_PPC_FPU. Even through we don't really
save the FPRs to the thread struct if CONFIG_PPC_FPU is not enabled,
but there does have some runtime overhead such as the check for
tsk->thread.regs and preempt disable and enable. It really make
no sense to do that. So make it a nop when CONFIG_PPC_FPU is
disabled. Also remove the wrapped #ifdef CONFIG_PPC_FPU
when invoking this function.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-08-14 14:59:44 +10:00
..
fabs.c [POWERPC] Replace remaining __FUNCTION__ occurrences 2008-04-01 20:43:09 +11:00
fadd.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fadds.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
fcmpo.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fcmpu.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
fctiw.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
fctiwz.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
fdiv.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fdivs.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fmadd.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fmadds.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fmr.c [POWERPC] Replace remaining __FUNCTION__ occurrences 2008-04-01 20:43:09 +11:00
fmsub.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fmsubs.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fmul.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fmuls.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fnabs.c [POWERPC] Replace remaining __FUNCTION__ occurrences 2008-04-01 20:43:09 +11:00
fneg.c [POWERPC] Replace remaining __FUNCTION__ occurrences 2008-04-01 20:43:09 +11:00
fnmadd.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fnmadds.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fnmsub.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fnmsubs.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fre.c powerpc/math-emu: Fix decoding of some instructions 2013-06-20 17:05:05 +10:00
fres.c [POWERPC] Replace remaining __FUNCTION__ occurrences 2008-04-01 20:43:09 +11:00
frsp.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
frsqrte.c [POWERPC] Replace remaining __FUNCTION__ occurrences 2008-04-01 20:43:09 +11:00
frsqrtes.c powerpc/math-emu: Fix decoding of some instructions 2013-06-20 17:05:05 +10:00
fsel.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
fsqrt.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fsqrts.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fsub.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
fsubs.c powerpc/math-emu: Remove redundant 'ret' 2008-12-03 08:19:15 -06:00
lfd.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
lfs.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
Makefile powerpc: split She math emulation into two parts 2013-08-14 14:59:19 +10:00
math_efp.c powerpc/math_emu/efp: Look for errata handler when type mismatches 2011-10-06 23:36:47 -05:00
math.c powerpc: Make flush_fp_to_thread() nop when CONFIG_PPC_FPU is disabled 2013-08-14 14:59:44 +10:00
mcrfs.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
mffs.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
mtfsb0.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
mtfsb1.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
mtfsf.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
mtfsfi.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
stfd.c [POWERPC] Replace remaining __FUNCTION__ occurrences 2008-04-01 20:43:09 +11:00
stfiwx.c [POWERPC] Replace remaining __FUNCTION__ occurrences 2008-04-01 20:43:09 +11:00
stfs.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00
udivmodti4.c powerpc/math-emu: Use kernel generic math-emu code 2008-10-01 08:40:07 -05:00