Merge tag 'drm-msm-next-2022-09-22' of https://gitlab.freedesktop.org/drm/msm into drm-next

msm-next for v6.1

DPU:
- simplified VBIF configuration
- cleaned up CTL interfaces to accept indices rather than flush masks

DSI:
- removed unused msm_display_dsc_config struct
- switch regulator calls to new bulk API
- switched to use PANEL_BRIDGE for directly attached panels

DSI PHY:
- converted drivers to use parent_hws instead of parent_names

DP:
- cleaned up pixel_rate handling

HDMI PHY:
- turned hdmi-phy-8996 into OF clk provider

core:
- misc dt-bindings fixes
- choose eDP as primary display if it's available
- support getting interconnects from either the mdss or the mdp5/dpu
  device nodes

gpu+gem:
- Shrinker + LRU re-work:
  - adds a shared GEM LRU+shrinker helper and moves msm over to that
  - reduces lock contention between retire and submit by avoiding the
    need to acquire obj lock in retire path (and instead using resv
    seeing obj's busyness in the shrinker
  - fix reclaim vs submit issues
- GEM fault injection for triggering userspace error paths
- Map/unmap optimization
- Improved robustness for a6xx GPU recovery

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGsrfrr9v1oR9S4oYfOs9jm=jbKQiwPBTrCRHrjYerJJFA@mail.gmail.com

1 files changed, 14 insertions, 10 deletions

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index c2bfcf3f1f40..0098ee8438aa 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -16,6 +16,7 @@
 #include <generated/utsrelease.h>
 #include <linux/string_helpers.h>
 #include <linux/devcoredump.h>
+#include <linux/reset.h>
 #include <linux/sched/task.h>
 
 /*
@@ -394,7 +395,6 @@ static void recover_worker(struct kthread_work *work)
 	/* Record the crash state */
 	pm_runtime_get_sync(&gpu->pdev->dev);
 	msm_gpu_crashstate_capture(gpu, submit, comm, cmd);
-	pm_runtime_put_sync(&gpu->pdev->dev);
 
 	kfree(cmd);
 	kfree(comm);
@@ -423,9 +423,7 @@ static void recover_worker(struct kthread_work *work)
 		/* retire completed submits, plus the one that hung: */
 		retire_submits(gpu);
 
-		pm_runtime_get_sync(&gpu->pdev->dev);
 		gpu->funcs->recover(gpu);
-		pm_runtime_put_sync(&gpu->pdev->dev);
 
 		/*
 		 * Replay all remaining submits starting with highest priority
@@ -442,6 +440,8 @@ static void recover_worker(struct kthread_work *work)
 		}
 	}
 
+	pm_runtime_put(&gpu->pdev->dev);
+
 	mutex_unlock(&gpu->lock);
 
 	msm_gpu_retire(gpu);
@@ -664,11 +664,12 @@ static void retire_submit(struct msm_gpu *gpu, struct msm_ringbuffer *ring,
 	mutex_lock(&gpu->active_lock);
 	gpu->active_submits--;
 	WARN_ON(gpu->active_submits < 0);
-	if (!gpu->active_submits)
+	if (!gpu->active_submits) {
 		msm_devfreq_idle(gpu);
-	mutex_unlock(&gpu->active_lock);
+		pm_runtime_put_autosuspend(&gpu->pdev->dev);
+	}
 
-	pm_runtime_put_autosuspend(&gpu->pdev->dev);
+	mutex_unlock(&gpu->active_lock);
 
 	msm_gem_submit_put(submit);
 }
@@ -757,14 +758,17 @@ void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit)
 
 	/* Update devfreq on transition from idle->active: */
 	mutex_lock(&gpu->active_lock);
-	if (!gpu->active_submits)
+	if (!gpu->active_submits) {
+		pm_runtime_get(&gpu->pdev->dev);
 		msm_devfreq_active(gpu);
+	}
 	gpu->active_submits++;
 	mutex_unlock(&gpu->active_lock);
 
 	gpu->funcs->submit(gpu, submit);
 	gpu->cur_ctx_seqno = submit->queue->ctx->seqno;
 
+	pm_runtime_put(&gpu->pdev->dev);
 	hangcheck_timer_reset(gpu);
 }
 
@@ -846,7 +850,6 @@ int msm_gpu_init(struct drm_device *drm, struct platform_device *pdev,
 
 	sched_set_fifo_low(gpu->worker->task);
 
-	INIT_LIST_HEAD(&gpu->active_list);
 	mutex_init(&gpu->active_lock);
 	mutex_init(&gpu->lock);
 	init_waitqueue_head(&gpu->retire_event);
@@ -901,6 +904,9 @@ int msm_gpu_init(struct drm_device *drm, struct platform_device *pdev,
 	if (IS_ERR(gpu->gpu_cx))
 		gpu->gpu_cx = NULL;
 
+	gpu->cx_collapse = devm_reset_control_get_optional_exclusive(&pdev->dev,
+			"cx_collapse");
+
 	gpu->pdev = pdev;
 	platform_set_drvdata(pdev, &gpu->adreno_smmu);
 
@@ -974,8 +980,6 @@ void msm_gpu_cleanup(struct msm_gpu *gpu)
 
 	DBG("%s", gpu->name);
 
-	WARN_ON(!list_empty(&gpu->active_list));
-
 	for (i = 0; i < ARRAY_SIZE(gpu->rb); i++) {
 		msm_ringbuffer_destroy(gpu->rb[i]);
 		gpu->rb[i] = NULL;