[POWERPC] spufs: add context switch notification log

[linux-2.6-omap-h63xx.git] / 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 cdc515182f823fc71357886c7dc5205f1d97f11d..dd63b16bb0724c1d3dbd85cbe5d6563766420544 100644 (file)
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -47,6 +47,30 @@ enum {
        SPU_SCHED_SPU_RUN,      /* context is within spu_run */
 };
 
+enum {
+       SWITCH_LOG_BUFSIZE = 4096,
+};
+
+enum {
+       SWITCH_LOG_START,
+       SWITCH_LOG_STOP,
+       SWITCH_LOG_EXIT,
+};
+
+struct switch_log {
+       spinlock_t              lock;
+       wait_queue_head_t       wait;
+       unsigned long           head;
+       unsigned long           tail;
+       struct switch_log_entry {
+               struct timespec tstamp;
+               s32             spu_id;
+               u32             type;
+               u32             val;
+               u64             timebase;
+       } log[];
+};
+
 struct spu_context {
        struct spu *spu;                  /* pointer to a physical SPU */
        struct spu_state csa;             /* SPU context save area. */
@@ -116,6 +140,9 @@ struct spu_context {
                unsigned long long libassist;
        } stats;
 
+       /* context switch log */
+       struct switch_log *switch_log;
+
        struct list_head aff_list;
        int aff_head;
        int aff_offset;
@@ -256,6 +283,8 @@ int spu_activate(struct spu_context *ctx, unsigned long flags);
 void spu_deactivate(struct spu_context *ctx);
 void spu_yield(struct spu_context *ctx);
 void spu_switch_notify(struct spu *spu, struct spu_context *ctx);
+void spu_switch_log_notify(struct spu *spu, struct spu_context *ctx,
+               u32 type, u32 val);
 void spu_set_timeslice(struct spu_context *ctx);
 void spu_update_sched_info(struct spu_context *ctx);
 void __spu_update_sched_info(struct spu_context *ctx);