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| author | Arnd Bergmann <arnd@arndb.de> | 2007-07-20 21:39:48 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@klappe.arndb.de> | 2007-07-20 21:42:17 +0200 |
| commit | c5fc8d2a92461fcabd00dfd678204cba36b93119 (patch) | |
| tree | 06af7ac73221494e0eef00f4f390faf53b24facf /arch/powerpc/platforms/cell/spufs/gang.c | |
| parent | 8e68e2f248332a9c3fd4f08258f488c209bd3e0c (diff) | |
| download | blackbird-op-linux-c5fc8d2a92461fcabd00dfd678204cba36b93119.tar.gz blackbird-op-linux-c5fc8d2a92461fcabd00dfd678204cba36b93119.zip | |
[CELL] cell: add placement computation for scheduling of affinity contexts
This patch provides the spu affinity placement logic for the spufs scheduler.
Each time a gang is going to be scheduled, the placement of a reference
context is defined. The placement of all other contexts with affinity from
the gang is defined based on this reference context location and on a
precomputed displacement offset.
Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/gang.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/gang.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/gang.c b/arch/powerpc/platforms/cell/spufs/gang.c index 0a752ce67c8a..71a443253021 100644 --- a/arch/powerpc/platforms/cell/spufs/gang.c +++ b/arch/powerpc/platforms/cell/spufs/gang.c @@ -75,8 +75,10 @@ void spu_gang_remove_ctx(struct spu_gang *gang, struct spu_context *ctx) { mutex_lock(&gang->mutex); WARN_ON(ctx->gang != gang); - if (!list_empty(&ctx->aff_list)) + if (!list_empty(&ctx->aff_list)) { list_del_init(&ctx->aff_list); + gang->aff_flags &= ~AFF_OFFSETS_SET; + } list_del_init(&ctx->gang_list); gang->contexts--; mutex_unlock(&gang->mutex); |
