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drm/amdgpu: Add interface to alloc gws from amdgpu

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Add amdgpu_amdkfd interface to alloc and free gws
from amdgpu

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Oak Zeng
2019-05-06 09:48:37 -05:00
committed by Alex Deucher
parent 29e764621b
commit ca66fb8fbb
2 changed files with 36 additions and 0 deletions
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34
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
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@@ -339,6 +339,40 @@ void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj)
amdgpu_bo_unref(&(bo));
}
int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size,
void **mem_obj)
{
struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
struct amdgpu_bo *bo = NULL;
struct amdgpu_bo_param bp;
int r;
memset(&bp, 0, sizeof(bp));
bp.size = size;
bp.byte_align = 1;
bp.domain = AMDGPU_GEM_DOMAIN_GWS;
bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
bp.type = ttm_bo_type_device;
bp.resv = NULL;
r = amdgpu_bo_create(adev, &bp, &bo);
if (r) {
dev_err(adev->dev,
"failed to allocate gws BO for amdkfd (%d)\n", r);
return r;
}
*mem_obj = bo;
return 0;
}
void amdgpu_amdkfd_free_gws(struct kgd_dev *kgd, void *mem_obj)
{
struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj;
amdgpu_bo_unref(&bo);
}
uint32_t amdgpu_amdkfd_get_fw_version(struct kgd_dev *kgd,
enum kgd_engine_type type)
{