Searched hist:c208505900b232ecdc81dee54cb3a032e75d88d6 (Results 1 – 3 of 3) sorted by relevance
| /linux/arch/powerpc/include/asm/ |
| H A D | switch_to.h | diff c208505900b232ecdc81dee54cb3a032e75d88d6 Thu Oct 29 01:44:08 CET 2015 Anton Blanchard <anton@samba.org> powerpc: create giveup_all()
Create a single function that gives everything up (FP, VMX, VSX, SPE).
Doing this all at once means we only do one MSR write.
A context switch microbenchmark using yield():
http://ozlabs.org/~anton/junkcode/context_switch2.c
./context_switch2 --test=yield --fp --altivec --vector 0 0
shows an improvement of 3% on POWER8.
Signed-off-by: Anton Blanchard <anton@samba.org>
[mpe: giveup_all() needs to be EXPORT_SYMBOL'ed]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
|
| /linux/arch/powerpc/kvm/ |
| H A D | book3s_pr.c | diff c208505900b232ecdc81dee54cb3a032e75d88d6 Thu Oct 29 01:44:08 CET 2015 Anton Blanchard <anton@samba.org> powerpc: create giveup_all()
Create a single function that gives everything up (FP, VMX, VSX, SPE).
Doing this all at once means we only do one MSR write.
A context switch microbenchmark using yield():
http://ozlabs.org/~anton/junkcode/context_switch2.c
./context_switch2 --test=yield --fp --altivec --vector 0 0
shows an improvement of 3% on POWER8.
Signed-off-by: Anton Blanchard <anton@samba.org>
[mpe: giveup_all() needs to be EXPORT_SYMBOL'ed]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
|
| /linux/arch/powerpc/kernel/ |
| H A D | process.c | diff c208505900b232ecdc81dee54cb3a032e75d88d6 Thu Oct 29 01:44:08 CET 2015 Anton Blanchard <anton@samba.org> powerpc: create giveup_all()
Create a single function that gives everything up (FP, VMX, VSX, SPE).
Doing this all at once means we only do one MSR write.
A context switch microbenchmark using yield():
http://ozlabs.org/~anton/junkcode/context_switch2.c
./context_switch2 --test=yield --fp --altivec --vector 0 0
shows an improvement of 3% on POWER8.
Signed-off-by: Anton Blanchard <anton@samba.org>
[mpe: giveup_all() needs to be EXPORT_SYMBOL'ed]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
|