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drm/amdgpu: re-implement fence_default_wait 

use fence_wait_any to implement fence_default_wait

Signed-off-by: monk.liu <monk.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
monk.liu 2015-07-30 18:26:18 +08:00 committed by Alex Deucher
parent 332dfe907b
commit e29551556e
1 changed files with 4 additions and 33 deletions
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37
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
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@ -1116,43 +1116,14 @@ static void amdgpu_fence_wait_cb(struct fence *fence, struct fence_cb *cb)
static signed long amdgpu_fence_default_wait(struct fence *f, bool intr,
signed long t)
{
struct amdgpu_fence *array[AMDGPU_MAX_RINGS];
struct amdgpu_fence *fence = to_amdgpu_fence(f);
struct amdgpu_device *adev = fence->ring->adev;
struct amdgpu_wait_cb cb;
cb.task = current;
memset(&array[0], 0, sizeof(array));
array[0] = fence;
if (fence_add_callback(f, &cb.base, amdgpu_fence_wait_cb))
return t;
while (t > 0) {
if (intr)
set_current_state(TASK_INTERRUPTIBLE);
else
set_current_state(TASK_UNINTERRUPTIBLE);
/*
* amdgpu_test_signaled must be called after
* set_current_state to prevent a race with wake_up_process
*/
if (amdgpu_test_signaled(fence))
break;
if (adev->needs_reset) {
t = -EDEADLK;
break;
}
t = schedule_timeout(t);
if (t > 0 && intr && signal_pending(current))
t = -ERESTARTSYS;
}
__set_current_state(TASK_RUNNING);
fence_remove_callback(f, &cb.base);
return t;
return amdgpu_fence_wait_any(adev, array, intr, t);
}
/* wait until any fence in array signaled */