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| author | marcel <marcel@FreeBSD.org> | 2010-03-23 19:30:56 +0000 |
|---|---|---|
| committer | marcel <marcel@FreeBSD.org> | 2010-03-23 19:30:56 +0000 |
| commit | 193d04d49c2533c96f66b796cc679d340f401e80 (patch) | |
| tree | ee34bf3694e9ddca0e778aa7bd1142093162df50 /sys/powerpc/booke/interrupt.c | |
| parent | ea4088df594009bb218984d2247eebb5592afd7f (diff) | |
| download | FreeBSD-src-193d04d49c2533c96f66b796cc679d340f401e80.zip FreeBSD-src-193d04d49c2533c96f66b796cc679d340f401e80.tar.gz | |
Enable power management for E500 cores. Use "doze" for now to make
sure the caches remain coherent. For single-core configurations and
with busdma changes we could eventually switch to "nap" and force
a D-cache invalidation as part of the DMA completion. To this end,
clear PSL_WE until after we handled the decrementer or external
interrupt as it tells us whether we just woke up or not.
Diffstat (limited to 'sys/powerpc/booke/interrupt.c')
| -rw-r--r-- | sys/powerpc/booke/interrupt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/powerpc/booke/interrupt.c b/sys/powerpc/booke/interrupt.c index 2367bf9..91ceeb7 100644 --- a/sys/powerpc/booke/interrupt.c +++ b/sys/powerpc/booke/interrupt.c @@ -123,6 +123,7 @@ powerpc_decr_interrupt(struct trapframe *framep) decr_intr(framep); atomic_subtract_int(&td->td_intr_nesting_level, 1); critical_exit(); + framep->srr1 &= ~PSL_WE; } /* @@ -135,4 +136,5 @@ powerpc_extr_interrupt(struct trapframe *framep) critical_enter(); PIC_DISPATCH(pic, framep); critical_exit(); + framep->srr1 &= ~PSL_WE; } |
