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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-02-21 05:49:58 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-04-01 04:37:25 (GMT) |
| commit | 62cc67b9df273be18fcb09a071592dedf751c90a (patch) | |
| tree | 604363a8a8ea577b59c58e10ba7cf36a67ced624 /arch/powerpc/include/asm/machdep.h | |
| parent | e872e41b79f61dbc22f85577613925a4a7de1c1a (diff) | |
| download | linux-fsl-qoriq-62cc67b9df273be18fcb09a071592dedf751c90a.tar.xz | |
powerpc/pmac/smp: Properly NAP offlined CPU on G5
The current code soft-disables, and then goes to NAP mode which
turns interrupts on. That means that if an interrupt occurs, we
will hit the masked interrupt code path which isn't what we want,
as it will return with EE off, which will either get us out of
NAP mode, or fail to enter it (according to spec).
Instead, let's just rely on the fact that it is safe to take
decrementer interrupts on an offline CPU and leave interrupts
enabled. We can also get rid of the special case in asm for
power4_cpu_offline_powersave() and just use power4_idle().
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/machdep.h')
| -rw-r--r-- | arch/powerpc/include/asm/machdep.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index bcfc0da..578d330 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -266,7 +266,6 @@ struct machdep_calls { extern void e500_idle(void); extern void power4_idle(void); -extern void power4_cpu_offline_powersave(void); extern void ppc6xx_idle(void); extern void book3e_idle(void); |