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[CELL] spufs: extension of spu_create to support affinity definition

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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>
This commit is contained in:
Arnd Bergmann
2007-07-20 21:39:47 +02:00
committed by Arnd Bergmann
parent 3ad216cae8
commit 8e68e2f248
8 changed files with 195 additions and 17 deletions
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8
include/asm-powerpc/spu.h
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@@ -196,6 +196,7 @@ extern struct cbe_spu_info cbe_spu_info[];
struct spu *spu_alloc(void);
struct spu *spu_alloc_node(int node);
struct spu *spu_alloc_spu(struct spu *spu);
void spu_free(struct spu *spu);
int spu_irq_class_0_bottom(struct spu *spu);
int spu_irq_class_1_bottom(struct spu *spu);
@@ -227,7 +228,8 @@ extern long spu_sys_callback(struct spu_syscall_block *s);
struct file;
extern struct spufs_calls {
asmlinkage long (*create_thread)(const char __user *name,
unsigned int flags, mode_t mode);
unsigned int flags, mode_t mode,
struct file *neighbor);
asmlinkage long (*spu_run)(struct file *filp, __u32 __user *unpc,
__u32 __user *ustatus);
struct module *owner;
@@ -254,8 +256,10 @@ struct spu_coredump_calls {
#define SPU_CREATE_GANG 0x0002
#define SPU_CREATE_NOSCHED 0x0004
#define SPU_CREATE_ISOLATE 0x0008
#define SPU_CREATE_AFFINITY_SPU 0x0010
#define SPU_CREATE_AFFINITY_MEM 0x0020
#define SPU_CREATE_FLAG_ALL 0x000f /* mask of all valid flags */
#define SPU_CREATE_FLAG_ALL 0x003f /* mask of all valid flags */
#ifdef CONFIG_SPU_FS_MODULE