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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-23 04:34:11 +08:00

drm/amdgpu: export reservation_object from dmabuf to ttm (v2)

Adds an extra argument to amdgpu_bo_create, which is only used in amdgpu_prime.c.

Port of radeon commit 831b6966a6.

v2: fix up kfd.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2015-09-03 17:34:59 +02:00 committed by Alex Deucher
parent b7d698d7fd
commit 72d7668b5b
24 changed files with 70 additions and 52 deletions

View File

@ -183,7 +183,7 @@ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
return -ENOMEM;
r = amdgpu_bo_create(rdev, size, PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_CREATE_CPU_GTT_USWC, NULL, &(*mem)->bo);
AMDGPU_GEM_CREATE_CPU_GTT_USWC, NULL, NULL, &(*mem)->bo);
if (r) {
dev_err(rdev->dev,
"failed to allocate BO for amdkfd (%d)\n", r);

View File

@ -79,7 +79,8 @@ static void amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,
int time;
n = AMDGPU_BENCHMARK_ITERATIONS;
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, sdomain, 0, NULL, &sobj);
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, sdomain, 0, NULL,
NULL, &sobj);
if (r) {
goto out_cleanup;
}
@ -91,7 +92,8 @@ static void amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,
if (r) {
goto out_cleanup;
}
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, ddomain, 0, NULL, &dobj);
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, ddomain, 0, NULL,
NULL, &dobj);
if (r) {
goto out_cleanup;
}

View File

@ -86,7 +86,7 @@ static int amdgpu_cgs_gmap_kmem(void *cgs_device, void *kmem,
struct sg_table *sg = drm_prime_pages_to_sg(&kmem_page, npages);
ret = amdgpu_bo_create(adev, size, PAGE_SIZE, false,
AMDGPU_GEM_DOMAIN_GTT, 0, sg, &bo);
AMDGPU_GEM_DOMAIN_GTT, 0, sg, NULL, &bo);
if (ret)
return ret;
ret = amdgpu_bo_reserve(bo, false);
@ -197,7 +197,8 @@ static int amdgpu_cgs_alloc_gpu_mem(void *cgs_device,
ret = amdgpu_bo_create_restricted(adev, size, PAGE_SIZE,
true, domain, flags,
NULL, &placement, &obj);
NULL, &placement, NULL,
&obj);
if (ret) {
DRM_ERROR("(%d) bo create failed\n", ret);
return ret;

View File

@ -246,7 +246,7 @@ static int amdgpu_vram_scratch_init(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev, AMDGPU_GPU_PAGE_SIZE,
PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &adev->vram_scratch.robj);
NULL, NULL, &adev->vram_scratch.robj);
if (r) {
return r;
}
@ -449,7 +449,8 @@ static int amdgpu_wb_init(struct amdgpu_device *adev)
if (adev->wb.wb_obj == NULL) {
r = amdgpu_bo_create(adev, AMDGPU_MAX_WB * 4, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, &adev->wb.wb_obj);
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
&adev->wb.wb_obj);
if (r) {
dev_warn(adev->dev, "(%d) create WB bo failed\n", r);
return r;

View File

@ -127,7 +127,7 @@ int amdgpu_gart_table_vram_alloc(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev, adev->gart.table_size,
PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &adev->gart.robj);
NULL, NULL, &adev->gart.robj);
if (r) {
return r;
}

View File

@ -69,7 +69,8 @@ int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
}
}
retry:
r = amdgpu_bo_create(adev, size, alignment, kernel, initial_domain, flags, NULL, &robj);
r = amdgpu_bo_create(adev, size, alignment, kernel, initial_domain,
flags, NULL, NULL, &robj);
if (r) {
if (r != -ERESTARTSYS) {
if (initial_domain == AMDGPU_GEM_DOMAIN_VRAM) {

View File

@ -43,7 +43,7 @@ static int amdgpu_ih_ring_alloc(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev, adev->irq.ih.ring_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0,
NULL, &adev->irq.ih.ring_obj);
NULL, NULL, &adev->irq.ih.ring_obj);
if (r) {
DRM_ERROR("amdgpu: failed to create ih ring buffer (%d).\n", r);
return r;

View File

@ -215,6 +215,7 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
bool kernel, u32 domain, u64 flags,
struct sg_table *sg,
struct ttm_placement *placement,
struct reservation_object *resv,
struct amdgpu_bo **bo_ptr)
{
struct amdgpu_bo *bo;
@ -261,7 +262,7 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
/* Kernel allocation are uninterruptible */
r = ttm_bo_init(&adev->mman.bdev, &bo->tbo, size, type,
&bo->placement, page_align, !kernel, NULL,
acc_size, sg, NULL, &amdgpu_ttm_bo_destroy);
acc_size, sg, resv, &amdgpu_ttm_bo_destroy);
if (unlikely(r != 0)) {
return r;
}
@ -275,7 +276,9 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
int amdgpu_bo_create(struct amdgpu_device *adev,
unsigned long size, int byte_align,
bool kernel, u32 domain, u64 flags,
struct sg_table *sg, struct amdgpu_bo **bo_ptr)
struct sg_table *sg,
struct reservation_object *resv,
struct amdgpu_bo **bo_ptr)
{
struct ttm_placement placement = {0};
struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
@ -286,11 +289,9 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
amdgpu_ttm_placement_init(adev, &placement,
placements, domain, flags);
return amdgpu_bo_create_restricted(adev, size, byte_align,
kernel, domain, flags,
sg,
&placement,
bo_ptr);
return amdgpu_bo_create_restricted(adev, size, byte_align, kernel,
domain, flags, sg, &placement,
resv, bo_ptr);
}
int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)

View File

@ -129,12 +129,14 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
unsigned long size, int byte_align,
bool kernel, u32 domain, u64 flags,
struct sg_table *sg,
struct reservation_object *resv,
struct amdgpu_bo **bo_ptr);
int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
unsigned long size, int byte_align,
bool kernel, u32 domain, u64 flags,
struct sg_table *sg,
struct ttm_placement *placement,
struct reservation_object *resv,
struct amdgpu_bo **bo_ptr);
int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr);
void amdgpu_bo_kunmap(struct amdgpu_bo *bo);

View File

@ -61,12 +61,15 @@ struct drm_gem_object *amdgpu_gem_prime_import_sg_table(struct drm_device *dev,
struct dma_buf_attachment *attach,
struct sg_table *sg)
{
struct reservation_object *resv = attach->dmabuf->resv;
struct amdgpu_device *adev = dev->dev_private;
struct amdgpu_bo *bo;
int ret;
ww_mutex_lock(&resv->lock, NULL);
ret = amdgpu_bo_create(adev, attach->dmabuf->size, PAGE_SIZE, false,
AMDGPU_GEM_DOMAIN_GTT, 0, sg, &bo);
AMDGPU_GEM_DOMAIN_GTT, 0, sg, resv, &bo);
ww_mutex_unlock(&resv->lock);
if (ret)
return ERR_PTR(ret);

View File

@ -407,7 +407,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
if (ring->ring_obj == NULL) {
r = amdgpu_bo_create(adev, ring->ring_size, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0,
NULL, &ring->ring_obj);
NULL, NULL, &ring->ring_obj);
if (r) {
dev_err(adev->dev, "(%d) ring create failed\n", r);
return r;

View File

@ -64,8 +64,8 @@ int amdgpu_sa_bo_manager_init(struct amdgpu_device *adev,
INIT_LIST_HEAD(&sa_manager->flist[i]);
}
r = amdgpu_bo_create(adev, size, align, true,
domain, 0, NULL, &sa_manager->bo);
r = amdgpu_bo_create(adev, size, align, true, domain,
0, NULL, NULL, &sa_manager->bo);
if (r) {
dev_err(adev->dev, "(%d) failed to allocate bo for manager\n", r);
return r;

View File

@ -59,8 +59,9 @@ static void amdgpu_do_test_moves(struct amdgpu_device *adev)
goto out_cleanup;
}
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM, 0,
NULL, &vram_obj);
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM, 0,
NULL, NULL, &vram_obj);
if (r) {
DRM_ERROR("Failed to create VRAM object\n");
goto out_cleanup;
@ -80,7 +81,8 @@ static void amdgpu_do_test_moves(struct amdgpu_device *adev)
struct fence *fence = NULL;
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, gtt_obj + i);
AMDGPU_GEM_DOMAIN_GTT, 0, NULL,
NULL, gtt_obj + i);
if (r) {
DRM_ERROR("Failed to create GTT object %d\n", i);
goto out_lclean;

View File

@ -861,7 +861,7 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev, 256 * 1024, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &adev->stollen_vga_memory);
NULL, NULL, &adev->stollen_vga_memory);
if (r) {
return r;
}

View File

@ -247,7 +247,7 @@ int amdgpu_ucode_init_bo(struct amdgpu_device *adev)
const struct common_firmware_header *header = NULL;
err = amdgpu_bo_create(adev, adev->firmware.fw_size, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, bo);
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL, bo);
if (err) {
dev_err(adev->dev, "(%d) Firmware buffer allocate failed\n", err);
err = -ENOMEM;

View File

@ -156,7 +156,7 @@ int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev, bo_size, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &adev->uvd.vcpu_bo);
NULL, NULL, &adev->uvd.vcpu_bo);
if (r) {
dev_err(adev->dev, "(%d) failed to allocate UVD bo\n", r);
return r;
@ -905,7 +905,7 @@ int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &bo);
NULL, NULL, &bo);
if (r)
return r;
@ -954,7 +954,7 @@ int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &bo);
NULL, NULL, &bo);
if (r)
return r;

View File

@ -143,7 +143,7 @@ int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size)
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &adev->vce.vcpu_bo);
NULL, NULL, &adev->vce.vcpu_bo);
if (r) {
dev_err(adev->dev, "(%d) failed to allocate VCE bo\n", r);
return r;

View File

@ -1101,7 +1101,7 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
AMDGPU_GPU_PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_NO_CPU_ACCESS,
NULL, &pt);
NULL, NULL, &pt);
if (r)
goto error_free;
@ -1303,7 +1303,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
r = amdgpu_bo_create(adev, pd_size, align, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_NO_CPU_ACCESS,
NULL, &vm->page_directory);
NULL, NULL, &vm->page_directory);
if (r)
return r;

View File

@ -814,7 +814,8 @@ int cz_smu_init(struct amdgpu_device *adev)
* 3. map kernel virtual address
*/
ret = amdgpu_bo_create(adev, priv->toc_buffer.data_size, PAGE_SIZE,
true, AMDGPU_GEM_DOMAIN_GTT, 0, NULL, toc_buf);
true, AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
toc_buf);
if (ret) {
dev_err(adev->dev, "(%d) SMC TOC buffer allocation failed\n", ret);
@ -822,7 +823,8 @@ int cz_smu_init(struct amdgpu_device *adev)
}
ret = amdgpu_bo_create(adev, priv->smu_buffer.data_size, PAGE_SIZE,
true, AMDGPU_GEM_DOMAIN_GTT, 0, NULL, smu_buf);
true, AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
smu_buf);
if (ret) {
dev_err(adev->dev, "(%d) SMC Internal buffer allocation failed\n", ret);

View File

@ -764,7 +764,7 @@ int fiji_smu_init(struct amdgpu_device *adev)
ret = amdgpu_bo_create(adev, image_size, PAGE_SIZE,
true, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, toc_buf);
NULL, NULL, toc_buf);
if (ret) {
DRM_ERROR("Failed to allocate memory for TOC buffer\n");
return -ENOMEM;
@ -774,7 +774,7 @@ int fiji_smu_init(struct amdgpu_device *adev)
ret = amdgpu_bo_create(adev, smu_internal_buffer_size, PAGE_SIZE,
true, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, smu_buf);
NULL, NULL, smu_buf);
if (ret) {
DRM_ERROR("Failed to allocate memory for SMU internal buffer\n");
return -ENOMEM;

View File

@ -3206,7 +3206,7 @@ static int gfx_v7_0_mec_init(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev,
adev->gfx.mec.num_mec *adev->gfx.mec.num_pipe * MEC_HPD_SIZE * 2,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
&adev->gfx.mec.hpd_eop_obj);
if (r) {
dev_warn(adev->dev, "(%d) create HDP EOP bo failed\n", r);
@ -3373,7 +3373,7 @@ static int gfx_v7_0_cp_compute_resume(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev,
sizeof(struct bonaire_mqd),
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
&ring->mqd_obj);
if (r) {
dev_warn(adev->dev, "(%d) create MQD bo failed\n", r);
@ -3788,7 +3788,8 @@ static int gfx_v7_0_rlc_init(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev, dws * 4, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &adev->gfx.rlc.save_restore_obj);
NULL, NULL,
&adev->gfx.rlc.save_restore_obj);
if (r) {
dev_warn(adev->dev, "(%d) create RLC sr bo failed\n", r);
return r;
@ -3831,7 +3832,8 @@ static int gfx_v7_0_rlc_init(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev, dws * 4, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &adev->gfx.rlc.clear_state_obj);
NULL, NULL,
&adev->gfx.rlc.clear_state_obj);
if (r) {
dev_warn(adev->dev, "(%d) create RLC c bo failed\n", r);
gfx_v7_0_rlc_fini(adev);
@ -3870,7 +3872,8 @@ static int gfx_v7_0_rlc_init(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev, adev->gfx.rlc.cp_table_size, PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, &adev->gfx.rlc.cp_table_obj);
NULL, NULL,
&adev->gfx.rlc.cp_table_obj);
if (r) {
dev_warn(adev->dev, "(%d) create RLC cp table bo failed\n", r);
gfx_v7_0_rlc_fini(adev);
@ -4851,21 +4854,21 @@ static int gfx_v7_0_sw_init(void *handle)
r = amdgpu_bo_create(adev, adev->gds.mem.gfx_partition_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GDS, 0,
NULL, &adev->gds.gds_gfx_bo);
NULL, NULL, &adev->gds.gds_gfx_bo);
if (r)
return r;
r = amdgpu_bo_create(adev, adev->gds.gws.gfx_partition_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GWS, 0,
NULL, &adev->gds.gws_gfx_bo);
NULL, NULL, &adev->gds.gws_gfx_bo);
if (r)
return r;
r = amdgpu_bo_create(adev, adev->gds.oa.gfx_partition_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_OA, 0,
NULL, &adev->gds.oa_gfx_bo);
NULL, NULL, &adev->gds.oa_gfx_bo);
if (r)
return r;

View File

@ -868,7 +868,7 @@ static int gfx_v8_0_mec_init(struct amdgpu_device *adev)
r = amdgpu_bo_create(adev,
adev->gfx.mec.num_mec *adev->gfx.mec.num_pipe * MEC_HPD_SIZE * 2,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL, NULL,
&adev->gfx.mec.hpd_eop_obj);
if (r) {
dev_warn(adev->dev, "(%d) create HDP EOP bo failed\n", r);
@ -995,21 +995,21 @@ static int gfx_v8_0_sw_init(void *handle)
/* reserve GDS, GWS and OA resource for gfx */
r = amdgpu_bo_create(adev, adev->gds.mem.gfx_partition_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GDS, 0,
AMDGPU_GEM_DOMAIN_GDS, 0, NULL,
NULL, &adev->gds.gds_gfx_bo);
if (r)
return r;
r = amdgpu_bo_create(adev, adev->gds.gws.gfx_partition_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GWS, 0,
AMDGPU_GEM_DOMAIN_GWS, 0, NULL,
NULL, &adev->gds.gws_gfx_bo);
if (r)
return r;
r = amdgpu_bo_create(adev, adev->gds.oa.gfx_partition_size,
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_OA, 0,
AMDGPU_GEM_DOMAIN_OA, 0, NULL,
NULL, &adev->gds.oa_gfx_bo);
if (r)
return r;
@ -3106,7 +3106,7 @@ static int gfx_v8_0_cp_compute_resume(struct amdgpu_device *adev)
sizeof(struct vi_mqd),
PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_GTT, 0, NULL,
&ring->mqd_obj);
NULL, &ring->mqd_obj);
if (r) {
dev_warn(adev->dev, "(%d) create MQD bo failed\n", r);
return r;

View File

@ -625,7 +625,7 @@ int iceland_smu_init(struct amdgpu_device *adev)
ret = amdgpu_bo_create(adev, image_size, PAGE_SIZE,
true, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, toc_buf);
NULL, NULL, toc_buf);
if (ret) {
DRM_ERROR("Failed to allocate memory for TOC buffer\n");
return -ENOMEM;

View File

@ -763,7 +763,7 @@ int tonga_smu_init(struct amdgpu_device *adev)
ret = amdgpu_bo_create(adev, image_size, PAGE_SIZE,
true, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, toc_buf);
NULL, NULL, toc_buf);
if (ret) {
DRM_ERROR("Failed to allocate memory for TOC buffer\n");
return -ENOMEM;
@ -773,7 +773,7 @@ int tonga_smu_init(struct amdgpu_device *adev)
ret = amdgpu_bo_create(adev, smu_internal_buffer_size, PAGE_SIZE,
true, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
NULL, smu_buf);
NULL, NULL, smu_buf);
if (ret) {
DRM_ERROR("Failed to allocate memory for SMU internal buffer\n");
return -ENOMEM;