diff mbox series

[v5,08/20] drm/lima: use scheduler dependency tracking

Message ID 20210805104705.862416-9-daniel.vetter@ffwll.ch (mailing list archive)
State New, archived
Headers show
Series drm/sched dependency handling and implicit sync fixes | expand

Commit Message

Daniel Vetter Aug. 5, 2021, 10:46 a.m. UTC 
Nothing special going on here.

Aside reviewing the code, it seems like drm_sched_job_arm() should be
moved into lima_sched_context_queue_task and put under some mutex
together with drm_sched_push_job(). See the kerneldoc for
drm_sched_push_job().

v2: Rebase over renamed functions to add dependencies.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Qiang Yu <yuq825@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: lima@lists.freedesktop.org
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
---
 drivers/gpu/drm/lima/lima_gem.c   |  6 ++++--
 drivers/gpu/drm/lima/lima_sched.c | 21 ---------------------
 drivers/gpu/drm/lima/lima_sched.h |  3 ---
 3 files changed, 4 insertions(+), 26 deletions(-)

Comments

Daniel Vetter Aug. 12, 2021, 7:28 p.m. UTC | #1 
On Thu, Aug 05, 2021 at 12:46:53PM +0200, Daniel Vetter wrote:
> Nothing special going on here.
> 
> Aside reviewing the code, it seems like drm_sched_job_arm() should be
> moved into lima_sched_context_queue_task and put under some mutex
> together with drm_sched_push_job(). See the kerneldoc for
> drm_sched_push_job().
> 
> v2: Rebase over renamed functions to add dependencies.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Qiang Yu <yuq825@gmail.com>
> Cc: Sumit Semwal <sumit.semwal@linaro.org>
> Cc: "Christian König" <christian.koenig@amd.com>
> Cc: lima@lists.freedesktop.org
> Cc: linux-media@vger.kernel.org
> Cc: linaro-mm-sig@lists.linaro.org

Ping for an ack here please. Testing would be even better ofc.
-Daniel

> ---
>  drivers/gpu/drm/lima/lima_gem.c   |  6 ++++--
>  drivers/gpu/drm/lima/lima_sched.c | 21 ---------------------
>  drivers/gpu/drm/lima/lima_sched.h |  3 ---
>  3 files changed, 4 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
> index c528f40981bb..640acc060467 100644
> --- a/drivers/gpu/drm/lima/lima_gem.c
> +++ b/drivers/gpu/drm/lima/lima_gem.c
> @@ -267,7 +267,9 @@ static int lima_gem_sync_bo(struct lima_sched_task *task, struct lima_bo *bo,
>  	if (explicit)
>  		return 0;
>  
> -	return drm_gem_fence_array_add_implicit(&task->deps, &bo->base.base, write);
> +	return drm_sched_job_add_implicit_dependencies(&task->base,
> +						       &bo->base.base,
> +						       write);
>  }
>  
>  static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
> @@ -285,7 +287,7 @@ static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
>  		if (err)
>  			return err;
>  
> -		err = drm_gem_fence_array_add(&submit->task->deps, fence);
> +		err = drm_sched_job_add_dependency(&submit->task->base, fence);
>  		if (err) {
>  			dma_fence_put(fence);
>  			return err;
> diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c
> index e968b5a8f0b0..99d5f6f1a882 100644
> --- a/drivers/gpu/drm/lima/lima_sched.c
> +++ b/drivers/gpu/drm/lima/lima_sched.c
> @@ -134,24 +134,15 @@ int lima_sched_task_init(struct lima_sched_task *task,
>  	task->num_bos = num_bos;
>  	task->vm = lima_vm_get(vm);
>  
> -	xa_init_flags(&task->deps, XA_FLAGS_ALLOC);
> -
>  	return 0;
>  }
>  
>  void lima_sched_task_fini(struct lima_sched_task *task)
>  {
> -	struct dma_fence *fence;
> -	unsigned long index;
>  	int i;
>  
>  	drm_sched_job_cleanup(&task->base);
>  
> -	xa_for_each(&task->deps, index, fence) {
> -		dma_fence_put(fence);
> -	}
> -	xa_destroy(&task->deps);
> -
>  	if (task->bos) {
>  		for (i = 0; i < task->num_bos; i++)
>  			drm_gem_object_put(&task->bos[i]->base.base);
> @@ -186,17 +177,6 @@ struct dma_fence *lima_sched_context_queue_task(struct lima_sched_task *task)
>  	return fence;
>  }
>  
> -static struct dma_fence *lima_sched_dependency(struct drm_sched_job *job,
> -					       struct drm_sched_entity *entity)
> -{
> -	struct lima_sched_task *task = to_lima_task(job);
> -
> -	if (!xa_empty(&task->deps))
> -		return xa_erase(&task->deps, task->last_dep++);
> -
> -	return NULL;
> -}
> -
>  static int lima_pm_busy(struct lima_device *ldev)
>  {
>  	int ret;
> @@ -472,7 +452,6 @@ static void lima_sched_free_job(struct drm_sched_job *job)
>  }
>  
>  static const struct drm_sched_backend_ops lima_sched_ops = {
> -	.dependency = lima_sched_dependency,
>  	.run_job = lima_sched_run_job,
>  	.timedout_job = lima_sched_timedout_job,
>  	.free_job = lima_sched_free_job,
> diff --git a/drivers/gpu/drm/lima/lima_sched.h b/drivers/gpu/drm/lima/lima_sched.h
> index ac70006b0e26..6a11764d87b3 100644
> --- a/drivers/gpu/drm/lima/lima_sched.h
> +++ b/drivers/gpu/drm/lima/lima_sched.h
> @@ -23,9 +23,6 @@ struct lima_sched_task {
>  	struct lima_vm *vm;
>  	void *frame;
>  
> -	struct xarray deps;
> -	unsigned long last_dep;
> -
>  	struct lima_bo **bos;
>  	int num_bos;
>  
> -- 
> 2.32.0
>
Qiang Yu Aug. 14, 2021, 2:45 a.m. UTC | #2 
Thanks for the remind, indeed miss a lock. Patch is:
Reviewed-by: Qiang Yu <yuq825@gmail.com>

Regards,
Qiang

On Fri, Aug 13, 2021 at 3:28 AM Daniel Vetter <daniel@ffwll.ch> wrote:
>
> On Thu, Aug 05, 2021 at 12:46:53PM +0200, Daniel Vetter wrote:
> > Nothing special going on here.
> >
> > Aside reviewing the code, it seems like drm_sched_job_arm() should be
> > moved into lima_sched_context_queue_task and put under some mutex
> > together with drm_sched_push_job(). See the kerneldoc for
> > drm_sched_push_job().
> >
> > v2: Rebase over renamed functions to add dependencies.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Qiang Yu <yuq825@gmail.com>
> > Cc: Sumit Semwal <sumit.semwal@linaro.org>
> > Cc: "Christian König" <christian.koenig@amd.com>
> > Cc: lima@lists.freedesktop.org
> > Cc: linux-media@vger.kernel.org
> > Cc: linaro-mm-sig@lists.linaro.org
>
> Ping for an ack here please. Testing would be even better ofc.
> -Daniel
>
> > ---
> >  drivers/gpu/drm/lima/lima_gem.c   |  6 ++++--
> >  drivers/gpu/drm/lima/lima_sched.c | 21 ---------------------
> >  drivers/gpu/drm/lima/lima_sched.h |  3 ---
> >  3 files changed, 4 insertions(+), 26 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
> > index c528f40981bb..640acc060467 100644
> > --- a/drivers/gpu/drm/lima/lima_gem.c
> > +++ b/drivers/gpu/drm/lima/lima_gem.c
> > @@ -267,7 +267,9 @@ static int lima_gem_sync_bo(struct lima_sched_task *task, struct lima_bo *bo,
> >       if (explicit)
> >               return 0;
> >
> > -     return drm_gem_fence_array_add_implicit(&task->deps, &bo->base.base, write);
> > +     return drm_sched_job_add_implicit_dependencies(&task->base,
> > +                                                    &bo->base.base,
> > +                                                    write);
> >  }
> >
> >  static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
> > @@ -285,7 +287,7 @@ static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
> >               if (err)
> >                       return err;
> >
> > -             err = drm_gem_fence_array_add(&submit->task->deps, fence);
> > +             err = drm_sched_job_add_dependency(&submit->task->base, fence);
> >               if (err) {
> >                       dma_fence_put(fence);
> >                       return err;
> > diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c
> > index e968b5a8f0b0..99d5f6f1a882 100644
> > --- a/drivers/gpu/drm/lima/lima_sched.c
> > +++ b/drivers/gpu/drm/lima/lima_sched.c
> > @@ -134,24 +134,15 @@ int lima_sched_task_init(struct lima_sched_task *task,
> >       task->num_bos = num_bos;
> >       task->vm = lima_vm_get(vm);
> >
> > -     xa_init_flags(&task->deps, XA_FLAGS_ALLOC);
> > -
> >       return 0;
> >  }
> >
> >  void lima_sched_task_fini(struct lima_sched_task *task)
> >  {
> > -     struct dma_fence *fence;
> > -     unsigned long index;
> >       int i;
> >
> >       drm_sched_job_cleanup(&task->base);
> >
> > -     xa_for_each(&task->deps, index, fence) {
> > -             dma_fence_put(fence);
> > -     }
> > -     xa_destroy(&task->deps);
> > -
> >       if (task->bos) {
> >               for (i = 0; i < task->num_bos; i++)
> >                       drm_gem_object_put(&task->bos[i]->base.base);
> > @@ -186,17 +177,6 @@ struct dma_fence *lima_sched_context_queue_task(struct lima_sched_task *task)
> >       return fence;
> >  }
> >
> > -static struct dma_fence *lima_sched_dependency(struct drm_sched_job *job,
> > -                                            struct drm_sched_entity *entity)
> > -{
> > -     struct lima_sched_task *task = to_lima_task(job);
> > -
> > -     if (!xa_empty(&task->deps))
> > -             return xa_erase(&task->deps, task->last_dep++);
> > -
> > -     return NULL;
> > -}
> > -
> >  static int lima_pm_busy(struct lima_device *ldev)
> >  {
> >       int ret;
> > @@ -472,7 +452,6 @@ static void lima_sched_free_job(struct drm_sched_job *job)
> >  }
> >
> >  static const struct drm_sched_backend_ops lima_sched_ops = {
> > -     .dependency = lima_sched_dependency,
> >       .run_job = lima_sched_run_job,
> >       .timedout_job = lima_sched_timedout_job,
> >       .free_job = lima_sched_free_job,
> > diff --git a/drivers/gpu/drm/lima/lima_sched.h b/drivers/gpu/drm/lima/lima_sched.h
> > index ac70006b0e26..6a11764d87b3 100644
> > --- a/drivers/gpu/drm/lima/lima_sched.h
> > +++ b/drivers/gpu/drm/lima/lima_sched.h
> > @@ -23,9 +23,6 @@ struct lima_sched_task {
> >       struct lima_vm *vm;
> >       void *frame;
> >
> > -     struct xarray deps;
> > -     unsigned long last_dep;
> > -
> >       struct lima_bo **bos;
> >       int num_bos;
> >
> > --
> > 2.32.0
> >
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
diff mbox series

Patch

diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
index c528f40981bb..640acc060467 100644
--- a/drivers/gpu/drm/lima/lima_gem.c
+++ b/drivers/gpu/drm/lima/lima_gem.c
@@ -267,7 +267,9 @@  static int lima_gem_sync_bo(struct lima_sched_task *task, struct lima_bo *bo,
 	if (explicit)
 		return 0;
 
-	return drm_gem_fence_array_add_implicit(&task->deps, &bo->base.base, write);
+	return drm_sched_job_add_implicit_dependencies(&task->base,
+						       &bo->base.base,
+						       write);
 }
 
 static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
@@ -285,7 +287,7 @@  static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
 		if (err)
 			return err;
 
-		err = drm_gem_fence_array_add(&submit->task->deps, fence);
+		err = drm_sched_job_add_dependency(&submit->task->base, fence);
 		if (err) {
 			dma_fence_put(fence);
 			return err;
diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c
index e968b5a8f0b0..99d5f6f1a882 100644
--- a/drivers/gpu/drm/lima/lima_sched.c
+++ b/drivers/gpu/drm/lima/lima_sched.c
@@ -134,24 +134,15 @@  int lima_sched_task_init(struct lima_sched_task *task,
 	task->num_bos = num_bos;
 	task->vm = lima_vm_get(vm);
 
-	xa_init_flags(&task->deps, XA_FLAGS_ALLOC);
-
 	return 0;
 }
 
 void lima_sched_task_fini(struct lima_sched_task *task)
 {
-	struct dma_fence *fence;
-	unsigned long index;
 	int i;
 
 	drm_sched_job_cleanup(&task->base);
 
-	xa_for_each(&task->deps, index, fence) {
-		dma_fence_put(fence);
-	}
-	xa_destroy(&task->deps);
-
 	if (task->bos) {
 		for (i = 0; i < task->num_bos; i++)
 			drm_gem_object_put(&task->bos[i]->base.base);
@@ -186,17 +177,6 @@  struct dma_fence *lima_sched_context_queue_task(struct lima_sched_task *task)
 	return fence;
 }
 
-static struct dma_fence *lima_sched_dependency(struct drm_sched_job *job,
-					       struct drm_sched_entity *entity)
-{
-	struct lima_sched_task *task = to_lima_task(job);
-
-	if (!xa_empty(&task->deps))
-		return xa_erase(&task->deps, task->last_dep++);
-
-	return NULL;
-}
-
 static int lima_pm_busy(struct lima_device *ldev)
 {
 	int ret;
@@ -472,7 +452,6 @@  static void lima_sched_free_job(struct drm_sched_job *job)
 }
 
 static const struct drm_sched_backend_ops lima_sched_ops = {
-	.dependency = lima_sched_dependency,
 	.run_job = lima_sched_run_job,
 	.timedout_job = lima_sched_timedout_job,
 	.free_job = lima_sched_free_job,
diff --git a/drivers/gpu/drm/lima/lima_sched.h b/drivers/gpu/drm/lima/lima_sched.h
index ac70006b0e26..6a11764d87b3 100644
--- a/drivers/gpu/drm/lima/lima_sched.h
+++ b/drivers/gpu/drm/lima/lima_sched.h
@@ -23,9 +23,6 @@  struct lima_sched_task {
 	struct lima_vm *vm;
 	void *frame;
 
-	struct xarray deps;
-	unsigned long last_dep;
-
 	struct lima_bo **bos;
 	int num_bos;