diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0709-drm-scheduler-avoid-redundant-shifting-of-the-entity.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0709-drm-scheduler-avoid-redundant-shifting-of-the-entity.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0709-drm-scheduler-avoid-redundant-shifting-of-the-entity.patch b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0709-drm-scheduler-avoid-redundant-shifting-of-the-entity.patch new file mode 100644 index 00000000..fbb9ac21 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0709-drm-scheduler-avoid-redundant-shifting-of-the-entity.patch @@ -0,0 +1,36 @@ +From 749853275a78273fb2b8541acb5c1cad4c1242a3 Mon Sep 17 00:00:00 2001 +From: Nayan Deshmukh <nayan26deshmukh@gmail.com> +Date: Tue, 21 Aug 2018 18:59:08 +0530 +Subject: [PATCH 0709/2940] drm/scheduler: avoid redundant shifting of the + entity v2 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +do not remove entity from the rq if the current rq is from +the least loaded scheduler. + +Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> +Reviewed-by: Christian König <christian.koenig@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/scheduler/sched_entity.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c +index 812e3530ea25..4e5e95c0cab5 100644 +--- a/drivers/gpu/drm/scheduler/sched_entity.c ++++ b/drivers/gpu/drm/scheduler/sched_entity.c +@@ -476,6 +476,9 @@ void drm_sched_entity_select_rq(struct drm_sched_entity *entity) + return; + + rq = drm_sched_entity_get_free_sched(entity); ++ if (rq == entity->rq) ++ return; ++ + spin_lock(&entity->rq_lock); + drm_sched_rq_remove_entity(entity->rq, entity); + entity->rq = rq; +-- +2.17.1 + |