From 27b1ea091f0c088ecad0d492f37fbe7b8d54d7dc Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 20 Jul 2007 21:39:34 +0200 Subject: [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 Signed-off-by: Jeremy Kerr Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/spufs/spufs.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/powerpc/platforms/cell/spufs/spufs.h') diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index fdace9284378..1438aa2c346e 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); -- cgit