From a3452ea763d666410e7b898e40b24f07e2cb1045 Mon Sep 17 00:00:00 2001 From: Bharat Nihalani Date: Tue, 9 Aug 2016 18:30:12 +0530 Subject: gpu: nvgpu: gk20a: Use spin_lock for jobs_lock This is done to boost performance of the GPU submit time, which is critical for compute use-cases. Bug 200215465 Bug 1804898 Conflicts: drivers/gpu/nvgpu/gk20a/channel_gk20a.c Change-Id: Ic4884ee4eac910b92b84a47fdc1b2e9f26b2f1f0 Signed-off-by: Bharat Nihalani Reviewed-on: http://git-master/r/1199860 Reviewed-on: http://git-master/r/1209834 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade Reviewed-by: Terje Bergstrom --- drivers/gpu/nvgpu/gk20a/cde_gk20a.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/nvgpu/gk20a/cde_gk20a.c') diff --git a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c index f5b68e72..6f8c160c 100644 --- a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c @@ -1125,9 +1125,9 @@ __releases(&cde_app->mutex) struct gk20a_cde_app *cde_app = &g->cde_app; bool channel_idle; - mutex_lock(&ch->jobs_lock); + spin_lock(&ch->jobs_lock); channel_idle = list_empty(&ch->jobs); - mutex_unlock(&ch->jobs_lock); + spin_unlock(&ch->jobs_lock); if (!channel_idle) return; -- cgit v1.2.2