UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amdgpu: fix and cleanup shadow handling 

Set the shadow flag on the shadow and not the parent, always bind shadow BOs
during allocation instead of manually, use the reservation_object wrappers
to grab the lock.

This fixes a couple of issues with binding the shadow BOs as well as correctly
evicting them when memory becomes tight.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@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 2017-08-18 15:50:17 +02:00 committed by Alex Deucher
parent 83e74db6a8
commit cf273a59ca
3 changed files with 23 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -2622,12 +2622,6 @@ static int amdgpu_recover_vram_from_shadow(struct amdgpu_device *adev,
goto err;
}
r = amdgpu_ttm_bind(&bo->shadow->tbo, &bo->shadow->tbo.mem);
if (r) {
DRM_ERROR("%p bind failed\n", bo->shadow);
goto err;
}
r = amdgpu_bo_restore_from_shadow(adev, ring, bo,
NULL, fence, true);
if (r) {

46
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@ -91,7 +91,10 @@ static void amdgpu_ttm_placement_init(struct amdgpu_device *adev,
if (domain & AMDGPU_GEM_DOMAIN_GTT) {
places[c].fpfn = 0;
places[c].lpfn = 0;
if (flags & AMDGPU_GEM_CREATE_SHADOW)
places[c].lpfn = adev->mc.gart_size >> PAGE_SHIFT;
else
places[c].lpfn = 0;
places[c].flags = TTM_PL_FLAG_TT;
if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
places[c].flags |= TTM_PL_FLAG_WC |
@ -446,17 +449,16 @@ static int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
if (bo->shadow)
return 0;
bo->flags |= AMDGPU_GEM_CREATE_SHADOW;
memset(&placements, 0,
(AMDGPU_GEM_DOMAIN_MAX + 1) * sizeof(struct ttm_place));
amdgpu_ttm_placement_init(adev, &placement,
placements, AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_CREATE_CPU_GTT_USWC);
memset(&placements, 0, sizeof(placements));
amdgpu_ttm_placement_init(adev, &placement, placements,
AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_CREATE_CPU_GTT_USWC |
AMDGPU_GEM_CREATE_SHADOW);
r = amdgpu_bo_create_restricted(adev, size, byte_align, true,
AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_CREATE_CPU_GTT_USWC,
AMDGPU_GEM_CREATE_CPU_GTT_USWC |
AMDGPU_GEM_CREATE_SHADOW,
NULL, &placement,
bo->tbo.resv,
0,
@ -484,30 +486,28 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
{
struct ttm_placement placement = {0};
struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
uint64_t parent_flags = flags & ~AMDGPU_GEM_CREATE_SHADOW;
int r;
memset(&placements, 0,
(AMDGPU_GEM_DOMAIN_MAX + 1) * sizeof(struct ttm_place));
memset(&placements, 0, sizeof(placements));
amdgpu_ttm_placement_init(adev, &placement, placements,
domain, parent_flags);
amdgpu_ttm_placement_init(adev, &placement,
placements, domain, flags);
r = amdgpu_bo_create_restricted(adev, size, byte_align, kernel,
domain, flags, sg, &placement,
resv, init_value, bo_ptr);
r = amdgpu_bo_create_restricted(adev, size, byte_align, kernel, domain,
parent_flags, sg, &placement, resv,
init_value, bo_ptr);
if (r)
return r;
if (amdgpu_need_backup(adev) && (flags & AMDGPU_GEM_CREATE_SHADOW)) {
if (!resv) {
r = ww_mutex_lock(&(*bo_ptr)->tbo.resv->lock, NULL);
WARN_ON(r != 0);
}
if ((flags & AMDGPU_GEM_CREATE_SHADOW) && amdgpu_need_backup(adev)) {
if (!resv)
WARN_ON(reservation_object_lock((*bo_ptr)->tbo.resv,
NULL));
r = amdgpu_bo_create_shadow(adev, size, byte_align, (*bo_ptr));
if (!resv)
ww_mutex_unlock(&(*bo_ptr)->tbo.resv->lock);
reservation_object_unlock((*bo_ptr)->tbo.resv);
if (r)
amdgpu_bo_unref(bo_ptr);

8
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View File

@ -165,14 +165,6 @@ static int amdgpu_vm_validate_level(struct amdgpu_vm_pt *parent,
unsigned i;
int r;
if (parent->bo->shadow) {
struct amdgpu_bo *shadow = parent->bo->shadow;
r = amdgpu_ttm_bind(&shadow->tbo, &shadow->tbo.mem);
if (r)
return r;
}
if (use_cpu_for_update) {
r = amdgpu_bo_kmap(parent->bo, NULL);
if (r)