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| author | Arnd Bergmann <arnd@arndb.de> | 2007-07-20 23:39:47 +0400 |
|---|---|---|
| committer | Arnd Bergmann <arnd@klappe.arndb.de> | 2007-07-20 23:42:15 +0400 |
| commit | 8e68e2f248332a9c3fd4f08258f488c209bd3e0c (patch) | |
| tree | 3001a5a8ce652ffdea97b2f89569447830b9059a /arch/powerpc/platforms/cell/spufs/spufs.h | |
| parent | 3ad216cae837d90415c605e1149e6fd88f51c973 (diff) | |
| download | linux-8e68e2f248332a9c3fd4f08258f488c209bd3e0c.tar.xz | |
[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/spufs.h')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/spufs.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 03e8315f6f9e..36da17987e9c 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -109,6 +109,9 @@ struct spu_context { unsigned long long class2_intr_base; /* # at last ctx switch */ unsigned long long libassist; } stats; + + struct list_head aff_list; + int aff_head; }; struct spu_gang { @@ -116,8 +119,17 @@ struct spu_gang { struct mutex mutex; struct kref kref; int contexts; + + struct spu_context *aff_ref_ctx; + struct list_head aff_list_head; + struct mutex aff_mutex; + int aff_flags; }; +/* Flag bits for spu_gang aff_flags */ +#define AFF_OFFSETS_SET 1 +#define AFF_MERGED 2 + struct mfc_dma_command { int32_t pad; /* reserved */ uint32_t lsa; /* local storage address */ @@ -182,8 +194,8 @@ extern struct tree_descr spufs_dir_nosched_contents[]; /* system call implementation */ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *status); -long spufs_create(struct nameidata *nd, - unsigned int flags, mode_t mode); +long spufs_create(struct nameidata *nd, unsigned int flags, + mode_t mode, struct file *filp); extern const struct file_operations spufs_context_fops; /* gang management */ |