From 2e3a2dda2515cc85b8600e3d8a20d1d4a9100ebd Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Wed, 29 Nov 2017 14:33:57 +0100 Subject: [PATCH] drm/etnaviv: move submit free out of critical section There is no need to hold the GPU lock while freeing the submit object. Only move the retired submits from the GPU active list to a temporary retire list under the GPU lock. Signed-off-by: Lucas Stach --- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 072384f..21d0d22 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -1201,20 +1201,22 @@ static void retire_worker(struct work_struct *work) retire_work); u32 fence = gpu->completed_fence; struct etnaviv_gem_submit *submit, *tmp; + LIST_HEAD(retire_list); mutex_lock(&gpu->lock); list_for_each_entry_safe(submit, tmp, &gpu->active_submit_list, node) { if (!dma_fence_is_signaled(submit->out_fence)) break; - list_del(&submit->node); - - etnaviv_submit_put(submit); + list_move(&submit->node, &retire_list); } gpu->retired_fence = fence; mutex_unlock(&gpu->lock); + + list_for_each_entry_safe(submit, tmp, &retire_list, node) + etnaviv_submit_put(submit); } int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu, -- 2.7.4