[RFC PATCH 03/13] drm/xe: Store exec queue in hardware fence

[Matthew Brost <matthew.brost@intel.com>]

Enable hardware fences to set deadlines for exec queues.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/xe/xe_hw_fence.c       | 4 +++-
 drivers/gpu/drm/xe/xe_hw_fence.h       | 2 +-
 drivers/gpu/drm/xe/xe_hw_fence_types.h | 6 ++++++
 drivers/gpu/drm/xe/xe_lrc.c            | 6 ++++--
 drivers/gpu/drm/xe/xe_lrc.h            | 3 ++-
 drivers/gpu/drm/xe/xe_sched_job.c      | 2 +-
 6 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_hw_fence.c b/drivers/gpu/drm/xe/xe_hw_fence.c
index f6057456e460..5995bf095843 100644
--- a/drivers/gpu/drm/xe/xe_hw_fence.c
+++ b/drivers/gpu/drm/xe/xe_hw_fence.c
@@ -242,6 +242,7 @@ void xe_hw_fence_free(struct dma_fence *fence)
  * xe_hw_fence_init() - Initialize an hw fence.
  * @fence: Pointer to the fence to initialize.
  * @ctx: Pointer to the struct xe_hw_fence_ctx fence context.
+ * @q: Pointer to exec queue tied to the fence.
  * @seqno_map: Pointer to the map into where the seqno is blitted.
  *
  * Initializes a pre-allocated hw fence.
@@ -249,12 +250,13 @@ void xe_hw_fence_free(struct dma_fence *fence)
  * dma-fence refcounting.
  */
 void xe_hw_fence_init(struct dma_fence *fence, struct xe_hw_fence_ctx *ctx,
-		      struct iosys_map seqno_map)
+		      struct xe_exec_queue *q, struct iosys_map seqno_map)
 {
 	struct  xe_hw_fence *hw_fence =
 		container_of(fence, typeof(*hw_fence), dma);
 
 	hw_fence->xe = gt_to_xe(ctx->gt);
+	hw_fence->q = q;
 	snprintf(hw_fence->name, sizeof(hw_fence->name), "%s", ctx->name);
 	hw_fence->seqno_map = seqno_map;
 	INIT_LIST_HEAD(&hw_fence->irq_link);
diff --git a/drivers/gpu/drm/xe/xe_hw_fence.h b/drivers/gpu/drm/xe/xe_hw_fence.h
index f13a1c4982c7..7a8678c881d8 100644
--- a/drivers/gpu/drm/xe/xe_hw_fence.h
+++ b/drivers/gpu/drm/xe/xe_hw_fence.h
@@ -29,5 +29,5 @@ struct dma_fence *xe_hw_fence_alloc(void);
 void xe_hw_fence_free(struct dma_fence *fence);
 
 void xe_hw_fence_init(struct dma_fence *fence, struct xe_hw_fence_ctx *ctx,
-		      struct iosys_map seqno_map);
+		      struct xe_exec_queue *q, struct iosys_map seqno_map);
 #endif
diff --git a/drivers/gpu/drm/xe/xe_hw_fence_types.h b/drivers/gpu/drm/xe/xe_hw_fence_types.h
index 58a8d09afe5c..052bbab1fad6 100644
--- a/drivers/gpu/drm/xe/xe_hw_fence_types.h
+++ b/drivers/gpu/drm/xe/xe_hw_fence_types.h
@@ -13,6 +13,7 @@
 #include <linux/spinlock.h>
 
 struct xe_device;
+struct xe_exec_queue;
 struct xe_gt;
 
 /**
@@ -64,6 +65,11 @@ struct xe_hw_fence {
 	struct dma_fence dma;
 	/** @xe: Xe device for hw fence driver name */
 	struct xe_device *xe;
+	/**
+	 * @q: Exec queue which fence is tied too, not ref counted, lookup
+	 * protected by fence lock.
+	 */
+	struct xe_exec_queue *q;
 	/** @name: name of hardware fence context */
 	char name[MAX_FENCE_NAME_LEN];
 	/** @seqno_map: I/O map for seqno */
diff --git a/drivers/gpu/drm/xe/xe_lrc.c b/drivers/gpu/drm/xe/xe_lrc.c
index 70eae7d03a27..fc4b21e3c00d 100644
--- a/drivers/gpu/drm/xe/xe_lrc.c
+++ b/drivers/gpu/drm/xe/xe_lrc.c
@@ -1783,15 +1783,17 @@ void xe_lrc_free_seqno_fence(struct dma_fence *fence)
 /**
  * xe_lrc_init_seqno_fence() - Initialize an lrc seqno fence.
  * @lrc: Pointer to the lrc.
+ ( @q: Pointner to exec queue.
  * @fence: Pointer to the fence to initialize.
  *
  * Initializes a pre-allocated lrc seqno fence.
  * After initialization, the fence is subject to normal
  * dma-fence refcounting.
  */
-void xe_lrc_init_seqno_fence(struct xe_lrc *lrc, struct dma_fence *fence)
+void xe_lrc_init_seqno_fence(struct xe_lrc *lrc, struct xe_exec_queue *q,
+			     struct dma_fence *fence)
 {
-	xe_hw_fence_init(fence, &lrc->fence_ctx, __xe_lrc_seqno_map(lrc));
+	xe_hw_fence_init(fence, &lrc->fence_ctx, q, __xe_lrc_seqno_map(lrc));
 }
 
 s32 xe_lrc_seqno(struct xe_lrc *lrc)
diff --git a/drivers/gpu/drm/xe/xe_lrc.h b/drivers/gpu/drm/xe/xe_lrc.h
index 8acf85273c1a..3d72b4c0da8e 100644
--- a/drivers/gpu/drm/xe/xe_lrc.h
+++ b/drivers/gpu/drm/xe/xe_lrc.h
@@ -118,7 +118,8 @@ u64 xe_lrc_descriptor(struct xe_lrc *lrc);
 u32 xe_lrc_seqno_ggtt_addr(struct xe_lrc *lrc);
 struct dma_fence *xe_lrc_alloc_seqno_fence(void);
 void xe_lrc_free_seqno_fence(struct dma_fence *fence);
-void xe_lrc_init_seqno_fence(struct xe_lrc *lrc, struct dma_fence *fence);
+void xe_lrc_init_seqno_fence(struct xe_lrc *lrc, struct xe_exec_queue *q,
+			     struct dma_fence *fence);
 s32 xe_lrc_seqno(struct xe_lrc *lrc);
 
 u32 xe_lrc_start_seqno_ggtt_addr(struct xe_lrc *lrc);
diff --git a/drivers/gpu/drm/xe/xe_sched_job.c b/drivers/gpu/drm/xe/xe_sched_job.c
index cb674a322113..6099b4445835 100644
--- a/drivers/gpu/drm/xe/xe_sched_job.c
+++ b/drivers/gpu/drm/xe/xe_sched_job.c
@@ -270,7 +270,7 @@ void xe_sched_job_arm(struct xe_sched_job *job)
 		struct dma_fence_chain *chain;
 
 		fence = job->ptrs[i].lrc_fence;
-		xe_lrc_init_seqno_fence(q->lrc[i], fence);
+		xe_lrc_init_seqno_fence(q->lrc[i], q, fence);
 		job->ptrs[i].lrc_fence = NULL;
 		if (!i) {
 			job->lrc_seqno = fence->seqno;
-- 
2.34.1