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drm/radeon: further cleanup vm flushing & fencing

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Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2014-02-20 10:47:05 +01:00
commit fa68834342
4 changed files with 38 additions and 16 deletions
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3
drivers/gpu/drm/radeon/radeon.h
View file

@ -2804,6 +2804,9 @@ int radeon_vm_alloc_pt(struct radeon_device *rdev, struct radeon_vm *vm);
void radeon_vm_add_to_lru(struct radeon_device *rdev, struct radeon_vm *vm);
struct radeon_fence *radeon_vm_grab_id(struct radeon_device *rdev,
struct radeon_vm *vm, int ring);
void radeon_vm_flush(struct radeon_device *rdev,
struct radeon_vm *vm,
int ring);
void radeon_vm_fence(struct radeon_device *rdev,
struct radeon_vm *vm,
struct radeon_fence *fence);

4
drivers/gpu/drm/radeon/radeon_cs.c
View file

@ -511,10 +511,6 @@ static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev,
r = radeon_ib_schedule(rdev, &parser->ib, NULL);
}
if (!r) {
radeon_vm_fence(rdev, vm, parser->ib.fence);
}
out:
radeon_vm_add_to_lru(rdev, vm);
mutex_unlock(&vm->mutex);

16
drivers/gpu/drm/radeon/radeon_ring.c
View file

@ -153,11 +153,9 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
return r;
}
/* if we can't remember our last VM flush then flush now! */
/* XXX figure out why we have to flush for every IB */
if (ib->vm /*&& !ib->vm->last_flush*/) {
radeon_ring_vm_flush(rdev, ib->ring, ib->vm);
}
if (ib->vm)
radeon_vm_flush(rdev, ib->vm, ib->ring);
if (const_ib) {
radeon_ring_ib_execute(rdev, const_ib->ring, const_ib);
radeon_semaphore_free(rdev, &const_ib->semaphore, NULL);
@ -172,10 +170,10 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
if (const_ib) {
const_ib->fence = radeon_fence_ref(ib->fence);
}
/* we just flushed the VM, remember that */
if (ib->vm && !ib->vm->last_flush) {
ib->vm->last_flush = radeon_fence_ref(ib->fence);
}
if (ib->vm)
radeon_vm_fence(rdev, ib->vm, ib->fence);
radeon_ring_unlock_commit(rdev, ring);
return 0;
}

31
drivers/gpu/drm/radeon/radeon_vm.c
View file

@ -378,6 +378,27 @@ struct radeon_fence *radeon_vm_grab_id(struct radeon_device *rdev,
return NULL;
}
/**
* radeon_vm_flush - hardware flush the vm
*
* @rdev: radeon_device pointer
* @vm: vm we want to flush
* @ring: ring to use for flush
*
* Flush the vm (cayman+).
*
* Global and local mutex must be locked!
*/
void radeon_vm_flush(struct radeon_device *rdev,
struct radeon_vm *vm,
int ring)
{
/* if we can't remember our last VM flush then flush now! */
/* XXX figure out why we have to flush all the time */
if (!vm->last_flush || true)
radeon_ring_vm_flush(rdev, ring, vm);
}
/**
* radeon_vm_fence - remember fence for vm
*
@ -394,14 +415,18 @@ void radeon_vm_fence(struct radeon_device *rdev,
struct radeon_vm *vm,
struct radeon_fence *fence)
{
radeon_fence_unref(&rdev->vm_manager.active[vm->id]);
rdev->vm_manager.active[vm->id] = radeon_fence_ref(fence);
radeon_fence_unref(&vm->fence);
vm->fence = radeon_fence_ref(fence);
radeon_fence_unref(&rdev->vm_manager.active[vm->id]);
rdev->vm_manager.active[vm->id] = radeon_fence_ref(fence);
radeon_fence_unref(&vm->last_id_use);
vm->last_id_use = radeon_fence_ref(fence);
/* we just flushed the VM, remember that */
if (!vm->last_flush)
vm->last_flush = radeon_fence_ref(fence);
}
/**