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drm/amdgpu: validate shadow as well when validating bo

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Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-08-04 13:05:46 +08:00 committed by Alex Deucher
parent e7893c4bd3
commit 14fd833efa
1 changed files with 46 additions and 30 deletions
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76
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
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@ -287,18 +287,56 @@ static u64 amdgpu_cs_get_threshold_for_moves(struct amdgpu_device *adev)
return max(bytes_moved_threshold, 1024*1024ull);
}
static int amdgpu_cs_bo_validate(struct amdgpu_cs_parser *p,
struct amdgpu_bo *bo)
{
u64 initial_bytes_moved;
uint32_t domain;
int r;
if (bo->pin_count)
return 0;
/* Avoid moving this one if we have moved too many buffers
* for this IB already.
*
* Note that this allows moving at least one buffer of
* any size, because it doesn't take the current "bo"
* into account. We don't want to disallow buffer moves
* completely.
*/
if (p->bytes_moved <= p->bytes_moved_threshold)
domain = bo->prefered_domains;
else
domain = bo->allowed_domains;
retry:
amdgpu_ttm_placement_from_domain(bo, domain);
initial_bytes_moved = atomic64_read(&bo->adev->num_bytes_moved);
r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
p->bytes_moved += atomic64_read(&bo->adev->num_bytes_moved) -
initial_bytes_moved;
if (unlikely(r)) {
if (r != -ERESTARTSYS && domain != bo->allowed_domains) {
domain = bo->allowed_domains;
goto retry;
}
}
return r;
}
int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
struct list_head *validated)
{
struct amdgpu_bo_list_entry *lobj;
u64 initial_bytes_moved;
int r;
list_for_each_entry(lobj, validated, tv.head) {
struct amdgpu_bo *bo = lobj->robj;
bool binding_userptr = false;
struct mm_struct *usermm;
uint32_t domain;
usermm = amdgpu_ttm_tt_get_usermm(bo->tbo.ttm);
if (usermm && usermm != current->mm)
@ -313,35 +351,13 @@ int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
binding_userptr = true;
}
if (bo->pin_count)
continue;
/* Avoid moving this one if we have moved too many buffers
* for this IB already.
*
* Note that this allows moving at least one buffer of
* any size, because it doesn't take the current "bo"
* into account. We don't want to disallow buffer moves
* completely.
*/
if (p->bytes_moved <= p->bytes_moved_threshold)
domain = bo->prefered_domains;
else
domain = bo->allowed_domains;
retry:
amdgpu_ttm_placement_from_domain(bo, domain);
initial_bytes_moved = atomic64_read(&bo->adev->num_bytes_moved);
r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
p->bytes_moved += atomic64_read(&bo->adev->num_bytes_moved) -
initial_bytes_moved;
if (unlikely(r)) {
if (r != -ERESTARTSYS && domain != bo->allowed_domains) {
domain = bo->allowed_domains;
goto retry;
}
r = amdgpu_cs_bo_validate(p, bo);
if (r)
return r;
if (bo->shadow) {
r = amdgpu_cs_bo_validate(p, bo);
if (r)
return r;
}
if (binding_userptr) {