diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4563-drm-scheduler-fix-a-corner-case-in-dependency-optimi.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4563-drm-scheduler-fix-a-corner-case-in-dependency-optimi.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4563-drm-scheduler-fix-a-corner-case-in-dependency-optimi.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4563-drm-scheduler-fix-a-corner-case-in-dependency-optimi.patch new file mode 100644 index 00000000..9d637a07 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4563-drm-scheduler-fix-a-corner-case-in-dependency-optimi.patch @@ -0,0 +1,42 @@ +From 1fc0a28e65a535f2dffe6d97caed348a139dcb31 Mon Sep 17 00:00:00 2001 +From: Nayan Deshmukh <nayan26deshmukh@gmail.com> +Date: Fri, 25 May 2018 10:15:46 +0530 +Subject: [PATCH 4563/5725] drm/scheduler: fix a corner case in dependency + optimization +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +When checking for a dependency fence for belonging to the same entity +compare it with scheduled as well finished fence. Earlier we were only +comparing it with the scheduled fence. + +Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> +Reviewed-by: Christian König <christian.koenig@amd.com> +--- + drivers/gpu/drm/scheduler/gpu_scheduler.c | 9 +++++++-- + 1 file changed, 7 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/scheduler/gpu_scheduler.c b/drivers/gpu/drm/scheduler/gpu_scheduler.c +index 1edc323..a403e47 100644 +--- a/drivers/gpu/drm/scheduler/gpu_scheduler.c ++++ b/drivers/gpu/drm/scheduler/gpu_scheduler.c +@@ -421,8 +421,13 @@ static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity) + struct dma_fence * fence = entity->dependency; + struct drm_sched_fence *s_fence; + +- if (fence->context == entity->fence_context) { +- /* We can ignore fences from ourself */ ++ if (fence->context == entity->fence_context || ++ fence->context == entity->fence_context + 1) { ++ /* ++ * Fence is a scheduled/finished fence from a job ++ * which belongs to the same entity, we can ignore ++ * fences from ourself ++ */ + dma_fence_put(entity->dependency); + return false; + } +-- +2.7.4 + |