diff options
| author | Christoph Hellwig <hch@lst.de> | 2007-07-20 21:39:34 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@klappe.arndb.de> | 2007-07-20 21:41:52 +0200 |
| commit | 27b1ea091f0c088ecad0d492f37fbe7b8d54d7dc (patch) | |
| tree | 5d54369e0b21877ee9ea57dddfab9733bcd82490 /arch/powerpc/platforms/cell/spufs/spufs.h | |
| parent | 27ec41d3a1d4df2b7cd190e93aad22ab86a72aa1 (diff) | |
[CELL] spufs: make sure context are scheduled again after spu_acquire_saved
Currently a process is removed from the physical spu when spu_acquire_saved
is saved but never put back. This patch adds a new spu_release_saved
that is to be paired with spu_acquire_saved and put the process back if
it has been in RUNNABLE state before.
Niether Jeremy not be are entirely happy about this exact patch because
it adds another spu_activate call outside of the owner thread, but I
feel this is the best short-term fix we can come up with.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/spufs.h')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/spufs.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index fdace928437..1438aa2c346 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -40,6 +40,10 @@ enum { struct spu_context_ops; struct spu_gang; +enum { + SPU_SCHED_WAS_ACTIVE, /* was active upon spu_acquire_saved() */ +}; + struct spu_context { struct spu *spu; /* pointer to a physical SPU */ struct spu_state csa; /* SPU context save area. */ @@ -214,6 +218,7 @@ void spu_unmap_mappings(struct spu_context *ctx); void spu_forget(struct spu_context *ctx); int spu_acquire_runnable(struct spu_context *ctx, unsigned long flags); void spu_acquire_saved(struct spu_context *ctx); +void spu_release_saved(struct spu_context *ctx); int spu_activate(struct spu_context *ctx, unsigned long flags); void spu_deactivate(struct spu_context *ctx); |