linux-kernel - [PATCH v3 27/33] drm/msm: Use DMA_RESV_USAGE

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Message-ID: <20250428205619.227835-28-robdclark@gmail.com>
Date: Mon, 28 Apr 2025 13:54:34 -0700
From: Rob Clark <robdclark@...il.com>
To: dri-devel@...ts.freedesktop.org
Cc: freedreno@...ts.freedesktop.org,
	linux-arm-msm@...r.kernel.org,
	Connor Abbott <cwabbott0@...il.com>,
	Rob Clark <robdclark@...omium.org>,
	Rob Clark <robdclark@...il.com>,
	Abhinav Kumar <quic_abhinavk@...cinc.com>,
	Dmitry Baryshkov <lumag@...nel.org>,
	Sean Paul <sean@...rly.run>,
	Marijn Suijten <marijn.suijten@...ainline.org>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v3 27/33] drm/msm: Use DMA_RESV_USAGE_BOOKKEEP/KERNEL

From: Rob Clark <robdclark@...omium.org>

Any place we wait for a BO to become idle, we should use BOOKKEEP usage,
to ensure that it waits for _any_ activity.

Signed-off-by: Rob Clark <robdclark@...omium.org>
---
 drivers/gpu/drm/msm/msm_gem.c          | 6 +++---
 drivers/gpu/drm/msm/msm_gem_shrinker.c | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index d0f44c981351..b4b299e3f3d3 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -76,8 +76,8 @@ static void msm_gem_close(struct drm_gem_object *obj, struct drm_file *file)
 	 * TODO we might need to kick this to a queue to avoid blocking
 	 * in CLOSE ioctl
 	 */
-	dma_resv_wait_timeout(obj->resv, DMA_RESV_USAGE_READ, false,
-			      msecs_to_jiffies(1000));
+	dma_resv_wait_timeout(obj->resv, DMA_RESV_USAGE_BOOKKEEP, false,
+			      MAX_SCHEDULE_TIMEOUT);
 
 	msm_gem_lock_vm_and_obj(&exec, obj, ctx->vm);
 	put_iova_spaces(obj, ctx->vm, true);
@@ -879,7 +879,7 @@ bool msm_gem_active(struct drm_gem_object *obj)
 	if (to_msm_bo(obj)->pin_count)
 		return true;
 
-	return !dma_resv_test_signaled(obj->resv, dma_resv_usage_rw(true));
+	return !dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_BOOKKEEP);
 }
 
 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout)
diff --git a/drivers/gpu/drm/msm/msm_gem_shrinker.c b/drivers/gpu/drm/msm/msm_gem_shrinker.c
index 4cd75001aca8..71dfafe2528d 100644
--- a/drivers/gpu/drm/msm/msm_gem_shrinker.c
+++ b/drivers/gpu/drm/msm/msm_gem_shrinker.c
@@ -74,7 +74,7 @@ evict(struct drm_gem_object *obj)
 static bool
 wait_for_idle(struct drm_gem_object *obj)
 {
-	enum dma_resv_usage usage = dma_resv_usage_rw(true);
+	enum dma_resv_usage usage = DMA_RESV_USAGE_BOOKKEEP;
 	return dma_resv_wait_timeout(obj->resv, usage, false, 10) > 0;
 }
 
-- 
2.49.0