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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 <l.stach@pengutronix.de>
This commit is contained in:
Lucas Stach 2017-11-29 14:33:57 +01:00
parent a7cfa565d4
commit 2e3a2dda25
1 changed files with 5 additions and 3 deletions
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8
drivers/gpu/drm/etnaviv/etnaviv_gpu.c
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@ -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,