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authorArnd Bergmann <arnd@arndb.de>2007-07-20 21:39:47 +0200
committerArnd Bergmann <arnd@klappe.arndb.de>2007-07-20 21:42:15 +0200
commit8e68e2f248332a9c3fd4f08258f488c209bd3e0c (patch)
tree3001a5a8ce652ffdea97b2f89569447830b9059a /arch/powerpc/platforms/cell/spufs/gang.c
parent3ad216cae837d90415c605e1149e6fd88f51c973 (diff)
[CELL] spufs: extension of spu_create to support affinity definition
This patch adds support for additional flags at spu_create, which relate to the establishment of affinity between contexts and contexts to memory. A fourth, optional, parameter is supported. This parameter represent a affinity neighbor of the context being created, and is used when defining SPU-SPU affinity. Affinity is represented as a doubly linked list of spu_contexts. 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.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/gang.c b/arch/powerpc/platforms/cell/spufs/gang.c
index 212ea78f9051..0a752ce67c8a 100644
--- a/arch/powerpc/platforms/cell/spufs/gang.c
+++ b/arch/powerpc/platforms/cell/spufs/gang.c
@@ -35,7 +35,9 @@ struct spu_gang *alloc_spu_gang(void)
kref_init(&gang->kref);
mutex_init(&gang->mutex);
+ mutex_init(&gang->aff_mutex);
INIT_LIST_HEAD(&gang->list);
+ INIT_LIST_HEAD(&gang->aff_list_head);
out:
return gang;
@@ -73,6 +75,8 @@ 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))
+ list_del_init(&ctx->aff_list);
list_del_init(&ctx->gang_list);
gang->contexts--;
mutex_unlock(&gang->mutex);