From 4eaf02d6076c138d929f98b4c8afc4fef6d2915d Mon Sep 17 00:00:00 2001 From: Christian König Date: Mon, 18 Oct 2021 21:27:55 +0200 Subject: drm/scheduler: fix drm_sched_job_add_implicit_dependencies MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Trivial fix since we now need to grab a reference to the fence we have added. Previously the dma_resv function where doing that for us. Signed-off-by: Christian König Fixes: 9c2ba265352a ("drm/scheduler: use new iterator in drm_sched_job_add_implicit_dependencies v2") Link: https://patchwork.freedesktop.org/patch/msgid/20211019112706.27769-1-christian.koenig@amd.com Reviewed-by: Daniel Vetter Reported-by: Nicolas Frattaroli References: https://lore.kernel.org/dri-devel/2023306.UmlnhvANQh@archbook/ Tested-by: Nicolas Frattaroli Tested-by: Yassine Oudjana --- drivers/gpu/drm/scheduler/sched_main.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/gpu/drm/scheduler/sched_main.c') diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 5bc5f775abe1..94fe51b3caa2 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -707,6 +707,9 @@ int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job, ret = drm_sched_job_add_dependency(job, fence); if (ret) return ret; + + /* Make sure to grab an additional ref on the added fence */ + dma_fence_get(fence); } return 0; } -- cgit v1.2.3 From 963d0b3569354230f6e2c36a286ef270a8901878 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Tue, 16 Nov 2021 07:55:45 -0800 Subject: drm/scheduler: fix drm_sched_job_add_implicit_dependencies harder MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit drm_sched_job_add_dependency() could drop the last ref, so we need to do the dma_fence_get() first. Cc: Christian König Fixes: 9c2ba265352a ("drm/scheduler: use new iterator in drm_sched_job_add_implicit_dependencies v2") Signed-off-by: Rob Clark Link: https://patchwork.freedesktop.org/patch/msgid/20211116155545.473311-1-robdclark@gmail.com Reviewed-by: Daniel Vetter Reviewed-by: Christian König Tested-by: Amit Pundir Signed-off-by: Christian König --- drivers/gpu/drm/scheduler/sched_main.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/drm/scheduler/sched_main.c') diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 94fe51b3caa2..f91fb31ab7a7 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -704,12 +704,13 @@ int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job, int ret; dma_resv_for_each_fence(&cursor, obj->resv, write, fence) { - ret = drm_sched_job_add_dependency(job, fence); - if (ret) - return ret; - /* Make sure to grab an additional ref on the added fence */ dma_fence_get(fence); + ret = drm_sched_job_add_dependency(job, fence); + if (ret) { + dma_fence_put(fence); + return ret; + } } return 0; } -- cgit v1.2.3