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author | 2023-06-07 15:02:18 +0200 | |
---|---|---|
committer | 2023-07-17 11:32:13 +0200 | |
commit | f098f9b8042af09087f37353150c5ad6f26620d5 (patch) | |
tree | d950ff091b09a839149ef4e4af9285683128ec60 /drivers/gpu/drm/etnaviv | |
parent | drm/etnaviv: free events the usual way in recover worker (diff) | |
download | linux-f098f9b8042af09087f37353150c5ad6f26620d5.tar.gz linux-f098f9b8042af09087f37353150c5ad6f26620d5.tar.bz2 linux-f098f9b8042af09087f37353150c5ad6f26620d5.zip |
drm/etnaviv: move runtime PM handling to events
Conceptually events are the right abstraction to handle the GPU
runtime PM state: as long as any event is pending the GPU can not
be idle. Events are also properly freed and reallocated when the
GPU has been reset after a hang.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Diffstat (limited to 'drivers/gpu/drm/etnaviv')
-rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gem.h | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 27 |
3 files changed, 16 insertions, 15 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.h b/drivers/gpu/drm/etnaviv/etnaviv_gem.h index baa81cbf701a..a42d260cac2c 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.h @@ -97,7 +97,6 @@ struct etnaviv_gem_submit { struct list_head node; /* GPU active submit list */ struct etnaviv_cmdbuf cmdbuf; struct pid *pid; /* submitting process */ - bool runtime_resumed; u32 exec_state; u32 flags; unsigned int nr_pmrs; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c index 45403ea38906..2416c526f9b0 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c @@ -362,9 +362,6 @@ static void submit_cleanup(struct kref *kref) container_of(kref, struct etnaviv_gem_submit, refcount); unsigned i; - if (submit->runtime_resumed) - pm_runtime_put_autosuspend(submit->gpu->dev); - if (submit->cmdbuf.suballoc) etnaviv_cmdbuf_free(&submit->cmdbuf); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index e067a27818d1..ba8c43bfc94e 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -1147,7 +1147,8 @@ static int event_alloc(struct etnaviv_gpu *gpu, unsigned nr_events, unsigned int *events) { unsigned long timeout = msecs_to_jiffies(10 * 10000); - unsigned i, acquired = 0; + unsigned i, acquired = 0, rpm_count = 0; + int ret; for (i = 0; i < nr_events; i++) { unsigned long ret; @@ -1156,6 +1157,7 @@ static int event_alloc(struct etnaviv_gpu *gpu, unsigned nr_events, if (!ret) { dev_err(gpu->dev, "wait_for_completion_timeout failed"); + ret = -EBUSY; goto out; } @@ -1175,13 +1177,23 @@ static int event_alloc(struct etnaviv_gpu *gpu, unsigned nr_events, spin_unlock(&gpu->event_spinlock); + for (i = 0; i < nr_events; i++) { + ret = pm_runtime_resume_and_get(gpu->dev); + if (ret) + goto out_rpm; + rpm_count++; + } + return 0; +out_rpm: + for (i = 0; i < rpm_count; i++) + pm_runtime_put_autosuspend(gpu->dev); out: for (i = 0; i < acquired; i++) complete(&gpu->event_free); - return -EBUSY; + return ret; } static void event_free(struct etnaviv_gpu *gpu, unsigned int event) @@ -1193,6 +1205,8 @@ static void event_free(struct etnaviv_gpu *gpu, unsigned int event) clear_bit(event, gpu->event_bitmap); complete(&gpu->event_free); } + + pm_runtime_put_autosuspend(gpu->dev); } /* @@ -1335,15 +1349,6 @@ struct dma_fence *etnaviv_gpu_submit(struct etnaviv_gem_submit *submit) unsigned int i, nr_events = 1, event[3]; int ret; - if (!submit->runtime_resumed) { - ret = pm_runtime_get_sync(gpu->dev); - if (ret < 0) { - pm_runtime_put_noidle(gpu->dev); - return NULL; - } - submit->runtime_resumed = true; - } - /* * if there are performance monitor requests we need to have * - a sync point to re-configure gpu and process ETNA_PM_PROCESS_PRE |