Merge tag 'drm-misc-next-2025-09-04' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.18:

Cross-subsystem Changes:

- Update a number of DT bindings for STM32MP25 Arm SoC

Core Changes:

gem:
- Simplify locking for GPUVM

panel-backlight-quirks:
- Add additional quirks for EDID, DMI, brightness

sched:
- Fix race condition in trace code
- Clean up

sysfb:
- Clean up

Driver Changes:

amdgpu:
- Give kernel jobs a unique id for better tracing

amdxdna:
- Improve error reporting

bridge:
- Improve ref counting on bridge management
- adv7511: Provide SPD and HDMI infoframes
- it6505: Replace crypto_shash with sha()
- synopsys: Add support for DW DPTX Controller plus DT bindings

gud:
- Replace simple-KMS pipe with regular atomic helpers

imagination:
- Improve power management
- Add support for TH1520 GPU
- Support Risc-V architectures

ivpu:
- Clean up

nouveau:
- Improve error reporting

panthor:
- Fail VM bind if BO has offset
- Clean up

rcar-du:
- Make number of lanes configurable

rockchip:
- Add support for RK3588 DPTX output

rocket:
- Use kfree() and sizeof() correctly
- Test DMA status
- Clean up

sitronix:
- st7571-i2c: Add support for inverted displays and 2-bit grayscale
- Clean up

stm:
- ltdc: Add support support for STM32MP257F-EV1 plus DT bindings

tidss:
- Convert to kernel's FIELD_ macros

v3d:
- Improve job management and locking

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250904090932.GA193997@linux.fritz.box

1 files changed, 45 insertions, 40 deletions

diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c
index f9d9a198d718..0ec06bfbbebb 100644
--- a/drivers/gpu/drm/v3d/v3d_sched.c
+++ b/drivers/gpu/drm/v3d/v3d_sched.c
@@ -139,7 +139,7 @@ static void
 v3d_job_start_stats(struct v3d_job *job, enum v3d_queue queue)
 {
 	struct v3d_dev *v3d = job->v3d;
-	struct v3d_file_priv *file = job->file->driver_priv;
+	struct v3d_file_priv *file = job->file_priv;
 	struct v3d_stats *global_stats = &v3d->queue[queue].stats;
 	struct v3d_stats *local_stats = &file->stats[queue];
 	u64 now = local_clock();
@@ -194,11 +194,11 @@ v3d_stats_update(struct v3d_stats *stats, u64 now)
 }
 
 void
-v3d_job_update_stats(struct v3d_job *job, enum v3d_queue queue)
+v3d_job_update_stats(struct v3d_job *job, enum v3d_queue q)
 {
 	struct v3d_dev *v3d = job->v3d;
-	struct v3d_file_priv *file = job->file->driver_priv;
-	struct v3d_stats *global_stats = &v3d->queue[queue].stats;
+	struct v3d_queue_state *queue = &v3d->queue[q];
+	struct v3d_stats *global_stats = &queue->stats;
 	u64 now = local_clock();
 	unsigned long flags;
 
@@ -209,10 +209,10 @@ v3d_job_update_stats(struct v3d_job *job, enum v3d_queue queue)
 		preempt_disable();
 
 	/* Don't update the local stats if the file context has already closed */
-	if (file)
-		v3d_stats_update(&file->stats[queue], now);
-	else
-		drm_dbg(&v3d->drm, "The file descriptor was closed before job completion\n");
+	spin_lock(&queue->queue_lock);
+	if (job->file_priv)
+		v3d_stats_update(&job->file_priv->stats[q], now);
+	spin_unlock(&queue->queue_lock);
 
 	v3d_stats_update(global_stats, now);
 
@@ -226,27 +226,28 @@ static struct dma_fence *v3d_bin_job_run(struct drm_sched_job *sched_job)
 {
 	struct v3d_bin_job *job = to_bin_job(sched_job);
 	struct v3d_dev *v3d = job->base.v3d;
+	struct v3d_queue_state *queue = &v3d->queue[V3D_BIN];
 	struct drm_device *dev = &v3d->drm;
 	struct dma_fence *fence;
 	unsigned long irqflags;
 
 	if (unlikely(job->base.base.s_fence->finished.error)) {
-		spin_lock_irqsave(&v3d->job_lock, irqflags);
-		v3d->bin_job = NULL;
-		spin_unlock_irqrestore(&v3d->job_lock, irqflags);
+		spin_lock_irqsave(&queue->queue_lock, irqflags);
+		queue->active_job = NULL;
+		spin_unlock_irqrestore(&queue->queue_lock, irqflags);
 		return NULL;
 	}
 
 	/* Lock required around bin_job update vs
 	 * v3d_overflow_mem_work().
 	 */
-	spin_lock_irqsave(&v3d->job_lock, irqflags);
-	v3d->bin_job = job;
+	spin_lock_irqsave(&queue->queue_lock, irqflags);
+	queue->active_job = &job->base;
 	/* Clear out the overflow allocation, so we don't
 	 * reuse the overflow attached to a previous job.
 	 */
 	V3D_CORE_WRITE(0, V3D_PTB_BPOS, 0);
-	spin_unlock_irqrestore(&v3d->job_lock, irqflags);
+	spin_unlock_irqrestore(&queue->queue_lock, irqflags);
 
 	v3d_invalidate_caches(v3d);
 
@@ -290,11 +291,11 @@ static struct dma_fence *v3d_render_job_run(struct drm_sched_job *sched_job)
 	struct dma_fence *fence;
 
 	if (unlikely(job->base.base.s_fence->finished.error)) {
-		v3d->render_job = NULL;
+		v3d->queue[V3D_RENDER].active_job = NULL;
 		return NULL;
 	}
 
-	v3d->render_job = job;
+	v3d->queue[V3D_RENDER].active_job = &job->base;
 
 	/* Can we avoid this flush?  We need to be careful of
 	 * scheduling, though -- imagine job0 rendering to texture and
@@ -338,11 +339,11 @@ v3d_tfu_job_run(struct drm_sched_job *sched_job)
 	struct dma_fence *fence;
 
 	if (unlikely(job->base.base.s_fence->finished.error)) {
-		v3d->tfu_job = NULL;
+		v3d->queue[V3D_TFU].active_job = NULL;
 		return NULL;
 	}
 
-	v3d->tfu_job = job;
+	v3d->queue[V3D_TFU].active_job = &job->base;
 
 	fence = v3d_fence_create(v3d, V3D_TFU);
 	if (IS_ERR(fence))
@@ -386,11 +387,11 @@ v3d_csd_job_run(struct drm_sched_job *sched_job)
 	int i, csd_cfg0_reg;
 
 	if (unlikely(job->base.base.s_fence->finished.error)) {
-		v3d->csd_job = NULL;
+		v3d->queue[V3D_CSD].active_job = NULL;
 		return NULL;
 	}
 
-	v3d->csd_job = job;
+	v3d->queue[V3D_CSD].active_job = &job->base;
 
 	v3d_invalidate_caches(v3d);
 
@@ -574,7 +575,7 @@ static void
 v3d_reset_performance_queries(struct v3d_cpu_job *job)
 {
 	struct v3d_performance_query_info *performance_query = &job->performance_query;
-	struct v3d_file_priv *v3d_priv = job->base.file->driver_priv;
+	struct v3d_file_priv *v3d_priv = job->base.file_priv;
 	struct v3d_dev *v3d = job->base.v3d;
 	struct v3d_perfmon *perfmon;
 
@@ -604,7 +605,7 @@ v3d_write_performance_query_result(struct v3d_cpu_job *job, void *data,
 {
 	struct v3d_performance_query_info *performance_query =
 						&job->performance_query;
-	struct v3d_file_priv *v3d_priv = job->base.file->driver_priv;
+	struct v3d_file_priv *v3d_priv = job->base.file_priv;
 	struct v3d_performance_query *perf_query =
 			&performance_query->queries[query];
 	struct v3d_dev *v3d = job->base.v3d;
@@ -700,6 +701,7 @@ v3d_cpu_job_run(struct drm_sched_job *sched_job)
 	trace_v3d_cpu_job_end(&v3d->drm, job->job_type);
 	v3d_job_update_stats(&job->base, V3D_CPU);
 
+	/* Synchronous operation, so no fence to wait on. */
 	return NULL;
 }
 
@@ -715,21 +717,24 @@ v3d_cache_clean_job_run(struct drm_sched_job *sched_job)
 
 	v3d_job_update_stats(job, V3D_CACHE_CLEAN);
 
+	/* Synchronous operation, so no fence to wait on. */
 	return NULL;
 }
 
 static enum drm_gpu_sched_stat
-v3d_gpu_reset_for_timeout(struct v3d_dev *v3d, struct drm_sched_job *sched_job)
+v3d_gpu_reset_for_timeout(struct v3d_dev *v3d, struct drm_sched_job *sched_job,
+			  enum v3d_queue q)
 {
 	struct v3d_job *job = to_v3d_job(sched_job);
-	struct v3d_file_priv *v3d_priv = job->file->driver_priv;
-	enum v3d_queue q;
+	struct v3d_file_priv *v3d_priv = job->file_priv;
+	unsigned long irqflags;
+	enum v3d_queue i;
 
 	mutex_lock(&v3d->reset_lock);
 
 	/* block scheduler */
-	for (q = 0; q < V3D_MAX_QUEUES; q++)
-		drm_sched_stop(&v3d->queue[q].sched, sched_job);
+	for (i = 0; i < V3D_MAX_QUEUES; i++)
+		drm_sched_stop(&v3d->queue[i].sched, sched_job);
 
 	if (sched_job)
 		drm_sched_increase_karma(sched_job);
@@ -738,15 +743,17 @@ v3d_gpu_reset_for_timeout(struct v3d_dev *v3d, struct drm_sched_job *sched_job)
 	v3d_reset(v3d);
 
 	v3d->reset_counter++;
-	v3d_priv->reset_counter++;
+	spin_lock_irqsave(&v3d->queue[q].queue_lock, irqflags);
+	if (v3d_priv)
+		v3d_priv->reset_counter++;
+	spin_unlock_irqrestore(&v3d->queue[q].queue_lock, irqflags);
 
-	for (q = 0; q < V3D_MAX_QUEUES; q++)
-		drm_sched_resubmit_jobs(&v3d->queue[q].sched);
+	for (i = 0; i < V3D_MAX_QUEUES; i++)
+		drm_sched_resubmit_jobs(&v3d->queue[i].sched);
 
 	/* Unblock schedulers and restart their jobs. */
-	for (q = 0; q < V3D_MAX_QUEUES; q++) {
-		drm_sched_start(&v3d->queue[q].sched, 0);
-	}
+	for (i = 0; i < V3D_MAX_QUEUES; i++)
+		drm_sched_start(&v3d->queue[i].sched, 0);
 
 	mutex_unlock(&v3d->reset_lock);
 
@@ -774,7 +781,7 @@ v3d_cl_job_timedout(struct drm_sched_job *sched_job, enum v3d_queue q,
 		return DRM_GPU_SCHED_STAT_NO_HANG;
 	}
 
-	return v3d_gpu_reset_for_timeout(v3d, sched_job);
+	return v3d_gpu_reset_for_timeout(v3d, sched_job, q);
 }
 
 static enum drm_gpu_sched_stat
@@ -796,11 +803,11 @@ v3d_render_job_timedout(struct drm_sched_job *sched_job)
 }
 
 static enum drm_gpu_sched_stat
-v3d_generic_job_timedout(struct drm_sched_job *sched_job)
+v3d_tfu_job_timedout(struct drm_sched_job *sched_job)
 {
 	struct v3d_job *job = to_v3d_job(sched_job);
 
-	return v3d_gpu_reset_for_timeout(job->v3d, sched_job);
+	return v3d_gpu_reset_for_timeout(job->v3d, sched_job, V3D_TFU);
 }
 
 static enum drm_gpu_sched_stat
@@ -819,7 +826,7 @@ v3d_csd_job_timedout(struct drm_sched_job *sched_job)
 		return DRM_GPU_SCHED_STAT_NO_HANG;
 	}
 
-	return v3d_gpu_reset_for_timeout(v3d, sched_job);
+	return v3d_gpu_reset_for_timeout(v3d, sched_job, V3D_CSD);
 }
 
 static const struct drm_sched_backend_ops v3d_bin_sched_ops = {
@@ -836,7 +843,7 @@ static const struct drm_sched_backend_ops v3d_render_sched_ops = {
 
 static const struct drm_sched_backend_ops v3d_tfu_sched_ops = {
 	.run_job = v3d_tfu_job_run,
-	.timedout_job = v3d_generic_job_timedout,
+	.timedout_job = v3d_tfu_job_timedout,
 	.free_job = v3d_sched_job_free,
 };
 
@@ -848,13 +855,11 @@ static const struct drm_sched_backend_ops v3d_csd_sched_ops = {
 
 static const struct drm_sched_backend_ops v3d_cache_clean_sched_ops = {
 	.run_job = v3d_cache_clean_job_run,
-	.timedout_job = v3d_generic_job_timedout,
 	.free_job = v3d_sched_job_free
 };
 
 static const struct drm_sched_backend_ops v3d_cpu_sched_ops = {
 	.run_job = v3d_cpu_job_run,
-	.timedout_job = v3d_generic_job_timedout,
 	.free_job = v3d_cpu_job_free
 };