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drm/amdgpu: add amdgpu_bo_vm bo type

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Add new BO subclass that will be used by amdgpu vm code.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nirmoy Das
2021-05-04 14:08:29 +02:00
committed by Alex Deucher
parent ae4c0d7674
commit 6fdd6f4aa5
2 changed files with 42 additions and 0 deletions
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32
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@@ -670,6 +670,38 @@ int amdgpu_bo_create_user(struct amdgpu_device *adev,
*ubo_ptr = to_amdgpu_bo_user(bo_ptr);
return r;
}
/**
* amdgpu_bo_create_vm - create an &amdgpu_bo_vm buffer object
* @adev: amdgpu device object
* @bp: parameters to be used for the buffer object
* @vmbo_ptr: pointer to the buffer object pointer
*
* Create a BO to be for GPUVM.
*
* Returns:
* 0 for success or a negative error code on failure.
*/
int amdgpu_bo_create_vm(struct amdgpu_device *adev,
struct amdgpu_bo_param *bp,
struct amdgpu_bo_vm **vmbo_ptr)
{
struct amdgpu_bo *bo_ptr;
int r;
/* bo_ptr_size will be determined by the caller and it depends on
* num of amdgpu_vm_pt entries.
*/
BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm));
r = amdgpu_bo_create(adev, bp, &bo_ptr);
if (r)
return r;
*vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
return r;
}
/**
* amdgpu_bo_validate - validate an &amdgpu_bo buffer object
* @bo: pointer to the buffer object

10
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
View File

@@ -44,6 +44,7 @@
#define AMDGPU_AMDKFD_CREATE_SVM_BO (1ULL << 62)
#define to_amdgpu_bo_user(abo) container_of((abo), struct amdgpu_bo_user, bo)
#define to_amdgpu_bo_vm(abo) container_of((abo), struct amdgpu_bo_vm, bo)
struct amdgpu_bo_param {
unsigned long size;
@@ -125,6 +126,12 @@ struct amdgpu_bo_user {
};
struct amdgpu_bo_vm {
struct amdgpu_bo bo;
struct amdgpu_bo *shadow;
struct amdgpu_vm_pt entries[];
};
static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo)
{
return container_of(tbo, struct amdgpu_bo, tbo);
@@ -272,6 +279,9 @@ int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
int amdgpu_bo_create_user(struct amdgpu_device *adev,
struct amdgpu_bo_param *bp,
struct amdgpu_bo_user **ubo_ptr);
int amdgpu_bo_create_vm(struct amdgpu_device *adev,
struct amdgpu_bo_param *bp,
struct amdgpu_bo_vm **ubo_ptr);
void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
void **cpu_addr);
int amdgpu_bo_create_shadow(struct amdgpu_device *adev,