6.10-stable review patch. If anyone has any objections, please let me know.
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From: Matthew Brost matthew.brost@intel.com
[ Upstream commit 08f7200899ca72dec550af092ae424b7db099abd ]
Tightly coupling these seqno presents problems if alternative fences for jobs are used. Decouple these for correctness.
v2: - Slightly reword commit message (Thomas) - Make sure the lrc fence ops are used in comparison (Thomas) - Assume seqno is unsigned rather than signed in format string (Thomas)
Cc: Thomas Hellström thomas.hellstrom@linux.intel.com Signed-off-by: Matthew Brost matthew.brost@intel.com Signed-off-by: Thomas Hellström thomas.hellstrom@linux.intel.com Reviewed-by: Rodrigo Vivi rodrigo.vivi@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20240527135912.152156-2-thomas... Stable-dep-of: 9e7f30563677 ("drm/xe: Free job before xe_exec_queue_put") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/xe/xe_exec_queue.c | 2 +- drivers/gpu/drm/xe/xe_guc_submit.c | 5 +++-- drivers/gpu/drm/xe/xe_ring_ops.c | 12 ++++++------ drivers/gpu/drm/xe/xe_sched_job.c | 16 ++++++++-------- drivers/gpu/drm/xe/xe_sched_job.h | 5 +++++ drivers/gpu/drm/xe/xe_sched_job_types.h | 2 ++ drivers/gpu/drm/xe/xe_trace.h | 7 +++++-- 7 files changed, 30 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c index 33b03605a1d15..79d099e054916 100644 --- a/drivers/gpu/drm/xe/xe_exec_queue.c +++ b/drivers/gpu/drm/xe/xe_exec_queue.c @@ -98,7 +98,7 @@ static struct xe_exec_queue *__xe_exec_queue_alloc(struct xe_device *xe,
if (xe_exec_queue_is_parallel(q)) { q->parallel.composite_fence_ctx = dma_fence_context_alloc(1); - q->parallel.composite_fence_seqno = XE_FENCE_INITIAL_SEQNO; + q->parallel.composite_fence_seqno = 0; }
return q; diff --git a/drivers/gpu/drm/xe/xe_guc_submit.c b/drivers/gpu/drm/xe/xe_guc_submit.c index 8c75791cbc4fb..e48285c81bf57 100644 --- a/drivers/gpu/drm/xe/xe_guc_submit.c +++ b/drivers/gpu/drm/xe/xe_guc_submit.c @@ -917,8 +917,9 @@ guc_exec_queue_timedout_job(struct drm_sched_job *drm_job) return DRM_GPU_SCHED_STAT_NOMINAL; }
- drm_notice(&xe->drm, "Timedout job: seqno=%u, guc_id=%d, flags=0x%lx", - xe_sched_job_seqno(job), q->guc->id, q->flags); + drm_notice(&xe->drm, "Timedout job: seqno=%u, lrc_seqno=%u, guc_id=%d, flags=0x%lx", + xe_sched_job_seqno(job), xe_sched_job_lrc_seqno(job), + q->guc->id, q->flags); xe_gt_WARN(q->gt, q->flags & EXEC_QUEUE_FLAG_KERNEL, "Kernel-submitted job timed out\n"); xe_gt_WARN(q->gt, q->flags & EXEC_QUEUE_FLAG_VM && !exec_queue_killed(q), diff --git a/drivers/gpu/drm/xe/xe_ring_ops.c b/drivers/gpu/drm/xe/xe_ring_ops.c index aca7a9af6e846..3b6aad8dea99a 100644 --- a/drivers/gpu/drm/xe/xe_ring_ops.c +++ b/drivers/gpu/drm/xe/xe_ring_ops.c @@ -412,7 +412,7 @@ static void emit_job_gen12_gsc(struct xe_sched_job *job)
__emit_job_gen12_simple(job, job->q->lrc, job->batch_addr[0], - xe_sched_job_seqno(job)); + xe_sched_job_lrc_seqno(job)); }
static void emit_job_gen12_copy(struct xe_sched_job *job) @@ -421,14 +421,14 @@ static void emit_job_gen12_copy(struct xe_sched_job *job)
if (xe_sched_job_is_migration(job->q)) { emit_migration_job_gen12(job, job->q->lrc, - xe_sched_job_seqno(job)); + xe_sched_job_lrc_seqno(job)); return; }
for (i = 0; i < job->q->width; ++i) __emit_job_gen12_simple(job, job->q->lrc + i, - job->batch_addr[i], - xe_sched_job_seqno(job)); + job->batch_addr[i], + xe_sched_job_lrc_seqno(job)); }
static void emit_job_gen12_video(struct xe_sched_job *job) @@ -439,7 +439,7 @@ static void emit_job_gen12_video(struct xe_sched_job *job) for (i = 0; i < job->q->width; ++i) __emit_job_gen12_video(job, job->q->lrc + i, job->batch_addr[i], - xe_sched_job_seqno(job)); + xe_sched_job_lrc_seqno(job)); }
static void emit_job_gen12_render_compute(struct xe_sched_job *job) @@ -449,7 +449,7 @@ static void emit_job_gen12_render_compute(struct xe_sched_job *job) for (i = 0; i < job->q->width; ++i) __emit_job_gen12_render_compute(job, job->q->lrc + i, job->batch_addr[i], - xe_sched_job_seqno(job)); + xe_sched_job_lrc_seqno(job)); }
static const struct xe_ring_ops ring_ops_gen12_gsc = { diff --git a/drivers/gpu/drm/xe/xe_sched_job.c b/drivers/gpu/drm/xe/xe_sched_job.c index a4e030f5e019a..874450be327ec 100644 --- a/drivers/gpu/drm/xe/xe_sched_job.c +++ b/drivers/gpu/drm/xe/xe_sched_job.c @@ -117,6 +117,7 @@ struct xe_sched_job *xe_sched_job_create(struct xe_exec_queue *q, err = PTR_ERR(job->fence); goto err_sched_job; } + job->lrc_seqno = job->fence->seqno; } else { struct dma_fence_array *cf;
@@ -132,6 +133,8 @@ struct xe_sched_job *xe_sched_job_create(struct xe_exec_queue *q, err = PTR_ERR(fences[j]); goto err_fences; } + if (!j) + job->lrc_seqno = fences[0]->seqno; }
cf = dma_fence_array_create(q->width, fences, @@ -144,10 +147,6 @@ struct xe_sched_job *xe_sched_job_create(struct xe_exec_queue *q, goto err_fences; }
- /* Sanity check */ - for (j = 0; j < q->width; ++j) - xe_assert(job_to_xe(job), cf->base.seqno == fences[j]->seqno); - job->fence = &cf->base; }
@@ -229,9 +228,9 @@ bool xe_sched_job_started(struct xe_sched_job *job) { struct xe_lrc *lrc = job->q->lrc;
- return !__dma_fence_is_later(xe_sched_job_seqno(job), + return !__dma_fence_is_later(xe_sched_job_lrc_seqno(job), xe_lrc_start_seqno(lrc), - job->fence->ops); + dma_fence_array_first(job->fence)->ops); }
bool xe_sched_job_completed(struct xe_sched_job *job) @@ -243,8 +242,9 @@ bool xe_sched_job_completed(struct xe_sched_job *job) * parallel handshake is done. */
- return !__dma_fence_is_later(xe_sched_job_seqno(job), xe_lrc_seqno(lrc), - job->fence->ops); + return !__dma_fence_is_later(xe_sched_job_lrc_seqno(job), + xe_lrc_seqno(lrc), + dma_fence_array_first(job->fence)->ops); }
void xe_sched_job_arm(struct xe_sched_job *job) diff --git a/drivers/gpu/drm/xe/xe_sched_job.h b/drivers/gpu/drm/xe/xe_sched_job.h index c75018f4660dc..002c3b5c0a5cb 100644 --- a/drivers/gpu/drm/xe/xe_sched_job.h +++ b/drivers/gpu/drm/xe/xe_sched_job.h @@ -73,6 +73,11 @@ static inline u32 xe_sched_job_seqno(struct xe_sched_job *job) return job->fence->seqno; }
+static inline u32 xe_sched_job_lrc_seqno(struct xe_sched_job *job) +{ + return job->lrc_seqno; +} + static inline void xe_sched_job_add_migrate_flush(struct xe_sched_job *job, u32 flags) { diff --git a/drivers/gpu/drm/xe/xe_sched_job_types.h b/drivers/gpu/drm/xe/xe_sched_job_types.h index 5e12724219fdd..990ddac55ed62 100644 --- a/drivers/gpu/drm/xe/xe_sched_job_types.h +++ b/drivers/gpu/drm/xe/xe_sched_job_types.h @@ -37,6 +37,8 @@ struct xe_sched_job { /** @user_fence.value: write back value */ u64 value; } user_fence; + /** @lrc_seqno: LRC seqno */ + u32 lrc_seqno; /** @migrate_flush_flags: Additional flush flags for migration jobs */ u32 migrate_flush_flags; /** @ring_ops_flush_tlb: The ring ops need to flush TLB before payload. */ diff --git a/drivers/gpu/drm/xe/xe_trace.h b/drivers/gpu/drm/xe/xe_trace.h index 2d56cfc09e421..6c6cecc58f63b 100644 --- a/drivers/gpu/drm/xe/xe_trace.h +++ b/drivers/gpu/drm/xe/xe_trace.h @@ -254,6 +254,7 @@ DECLARE_EVENT_CLASS(xe_sched_job,
TP_STRUCT__entry( __field(u32, seqno) + __field(u32, lrc_seqno) __field(u16, guc_id) __field(u32, guc_state) __field(u32, flags) @@ -264,6 +265,7 @@ DECLARE_EVENT_CLASS(xe_sched_job,
TP_fast_assign( __entry->seqno = xe_sched_job_seqno(job); + __entry->lrc_seqno = xe_sched_job_lrc_seqno(job); __entry->guc_id = job->q->guc->id; __entry->guc_state = atomic_read(&job->q->guc->state); @@ -273,8 +275,9 @@ DECLARE_EVENT_CLASS(xe_sched_job, __entry->batch_addr = (u64)job->batch_addr[0]; ),
- TP_printk("fence=%p, seqno=%u, guc_id=%d, batch_addr=0x%012llx, guc_state=0x%x, flags=0x%x, error=%d", - __entry->fence, __entry->seqno, __entry->guc_id, + TP_printk("fence=%p, seqno=%u, lrc_seqno=%u, guc_id=%d, batch_addr=0x%012llx, guc_state=0x%x, flags=0x%x, error=%d", + __entry->fence, __entry->seqno, + __entry->lrc_seqno, __entry->guc_id, __entry->batch_addr, __entry->guc_state, __entry->flags, __entry->error) );