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drm/amdgpu: fix amdgpu_ttm_bind 

Use ttm_bo_mem_space instead of manually allocating GART space.

This allows us to evict BOs when there isn't enought GART space any more.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2017-08-22 16:58:07 +02:00 committed by Alex Deucher
parent febb84a603
commit 9b0655e3ad
3 changed files with 31 additions and 20 deletions
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14
drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
View File

@ -108,10 +108,10 @@ bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem)
*
* Allocate the address space for a node.
*/
int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
struct ttm_buffer_object *tbo,
const struct ttm_place *place,
struct ttm_mem_reg *mem)
static int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
struct ttm_buffer_object *tbo,
const struct ttm_place *place,
struct ttm_mem_reg *mem)
{
struct amdgpu_device *adev = amdgpu_ttm_adev(man->bdev);
struct amdgpu_gtt_mgr *mgr = man->priv;
@ -143,12 +143,8 @@ int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
fpfn, lpfn, mode);
spin_unlock(&mgr->lock);
if (!r) {
if (!r)
mem->start = node->start;
if (&tbo->mem == mem)
tbo->offset = (tbo->mem.start << PAGE_SHIFT) +
tbo->bdev->man[tbo->mem.mem_type].gpu_offset;
}
return r;
}

33
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -824,20 +824,39 @@ bool amdgpu_ttm_is_bound(struct ttm_tt *ttm)
int amdgpu_ttm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *bo_mem)
{
struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
struct ttm_tt *ttm = bo->ttm;
struct ttm_mem_reg tmp;
struct ttm_placement placement;
struct ttm_place placements;
int r;
if (!ttm || amdgpu_ttm_is_bound(ttm))
return 0;
r = amdgpu_gtt_mgr_alloc(&bo->bdev->man[TTM_PL_TT], bo,
NULL, bo_mem);
if (r) {
DRM_ERROR("Failed to allocate GTT address space (%d)\n", r);
return r;
}
tmp = bo->mem;
tmp.mm_node = NULL;
placement.num_placement = 1;
placement.placement = &placements;
placement.num_busy_placement = 1;
placement.busy_placement = &placements;
placements.fpfn = 0;
placements.lpfn = adev->mc.gart_size >> PAGE_SHIFT;
placements.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
return amdgpu_ttm_do_bind(ttm, bo_mem);
r = ttm_bo_mem_space(bo, &placement, &tmp, true, false);
if (unlikely(r))
return r;
r = ttm_bo_move_ttm(bo, true, false, &tmp);
if (unlikely(r))
ttm_bo_mem_put(bo, &tmp);
else
bo->offset = (bo->mem.start << PAGE_SHIFT) +
bo->bdev->man[bo->mem.mem_type].gpu_offset;
return r;
}
int amdgpu_ttm_recover_gart(struct amdgpu_device *adev)

4
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
View File

@ -62,10 +62,6 @@ extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func;
extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;
bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem);
int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
struct ttm_buffer_object *tbo,
const struct ttm_place *place,
struct ttm_mem_reg *mem);
uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man);
uint64_t amdgpu_vram_mgr_usage(struct ttm_mem_type_manager *man);