struct spu_context_ops;
struct spu_gang;
-/*
- * This is the state for spu utilization reporting to userspace.
- * Because this state is visible to userspace it must never change and needs
- * to be kept strictly separate from any internal state kept by the kernel.
- */
-enum spuctx_execution_state {
- SPUCTX_UTIL_USER = 0,
- SPUCTX_UTIL_SYSTEM,
- SPUCTX_UTIL_IOWAIT,
- SPUCTX_UTIL_LOADED,
- SPUCTX_UTIL_MAX
+/* ctx->sched_flags */
+enum {
+ SPU_SCHED_NOTIFY_ACTIVE,
+ SPU_SCHED_WAS_ACTIVE, /* was active upon spu_acquire_saved() */
};
struct spu_context {
struct list_head gang_list;
struct spu_gang *gang;
+ struct kref *prof_priv_kref;
+ void ( * prof_priv_release) (struct kref *kref);
/* owner thread */
pid_t tid;
/* statistics */
struct {
/* updates protected by ctx->state_mutex */
- enum spuctx_execution_state execution_state;
- unsigned long tstamp; /* time of last ctx switch */
- unsigned long times[SPUCTX_UTIL_MAX];
+ enum spu_utilization_state util_state;
+ unsigned long long tstamp; /* time of last state switch */
+ unsigned long long times[SPU_UTIL_MAX];
unsigned long long vol_ctx_switch;
unsigned long long invol_ctx_switch;
unsigned long long min_flt;
unsigned long long class2_intr_base; /* # at last ctx switch */
unsigned long long libassist;
} stats;
+
+ struct list_head aff_list;
+ int aff_head;
+ int aff_offset;
};
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;
+ struct spu *aff_ref_spu;
+ atomic_t aff_sched_count;
};
+/* 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 */
extern struct tree_descr spufs_dir_nosched_contents[];
/* system call implementation */
-long spufs_run_spu(struct file *file,
- struct spu_context *ctx, u32 *npc, u32 *status);
-long spufs_create(struct nameidata *nd,
- unsigned int flags, mode_t mode);
+extern struct spufs_calls spufs_calls;
+long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *status);
+long spufs_create(struct nameidata *nd, unsigned int flags,
+ mode_t mode, struct file *filp);
+/* ELF coredump callbacks for writing SPU ELF notes */
+extern int spufs_coredump_extra_notes_size(void);
+extern int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset);
+
extern const struct file_operations spufs_context_fops;
/* gang management */
/* fault handling */
int spufs_handle_class1(struct spu_context *ctx);
+/* affinity */
+struct spu *affinity_check(struct spu_context *ctx);
+
/* context management */
extern atomic_t nr_spu_contexts;
static inline void spu_acquire(struct spu_context *ctx)
void spu_forget(struct spu_context *ctx);
int spu_acquire_runnable(struct spu_context *ctx, unsigned long flags);
void spu_acquire_saved(struct spu_context *ctx);
+void spu_release_saved(struct spu_context *ctx);
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_set_timeslice(struct spu_context *ctx);
void spu_update_sched_info(struct spu_context *ctx);
void __spu_update_sched_info(struct spu_context *ctx);
int __init spu_sched_init(void);
-void __exit spu_sched_exit(void);
+void spu_sched_exit(void);
extern char *isolated_loader;
char *name;
ssize_t (*read)(struct spu_context *ctx,
char __user *buffer, size_t size, loff_t *pos);
- u64 (*get)(void *data);
+ u64 (*get)(struct spu_context *ctx);
size_t size;
};
extern struct spufs_coredump_reader spufs_coredump_read[];
* line.
*/
static inline void spuctx_switch_state(struct spu_context *ctx,
- enum spuctx_execution_state new_state)
+ enum spu_utilization_state new_state)
{
- WARN_ON(!mutex_is_locked(&ctx->state_mutex));
-
- if (ctx->stats.execution_state != new_state) {
- unsigned long curtime = jiffies;
+ unsigned long long curtime;
+ signed long long delta;
+ struct timespec ts;
+ struct spu *spu;
+ enum spu_utilization_state old_state;
- ctx->stats.times[ctx->stats.execution_state] +=
- curtime - ctx->stats.tstamp;
- ctx->stats.tstamp = curtime;
- ctx->stats.execution_state = new_state;
- }
-}
+ ktime_get_ts(&ts);
+ curtime = timespec_to_ns(&ts);
+ delta = curtime - ctx->stats.tstamp;
-static inline void spu_switch_state(struct spu *spu,
- enum spuctx_execution_state new_state)
-{
- if (spu->stats.utilization_state != new_state) {
- unsigned long curtime = jiffies;
-
- spu->stats.times[spu->stats.utilization_state] +=
- curtime - spu->stats.tstamp;
+ WARN_ON(!mutex_is_locked(&ctx->state_mutex));
+ WARN_ON(delta < 0);
+
+ spu = ctx->spu;
+ old_state = ctx->stats.util_state;
+ ctx->stats.util_state = new_state;
+ ctx->stats.tstamp = curtime;
+
+ /*
+ * Update the physical SPU utilization statistics.
+ */
+ if (spu) {
+ ctx->stats.times[old_state] += delta;
+ spu->stats.times[old_state] += delta;
+ spu->stats.util_state = new_state;
spu->stats.tstamp = curtime;
- spu->stats.utilization_state = new_state;
}
}
projects / linux-2.6 / blobdiff