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Commit 473fee47 authored by Yong Zhao's avatar Yong Zhao Committed by Oded Gabbay
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drm/amdgpu: Replace kgd_mem with amdgpu_bo for kernel pinned gtt mem 



The extra fields in struct kgd_mem aren't actually needed. This struct
will be used for GPUVM allocations later.

Signed-off-by: default avatarYong Zhao <yong.zhao@amd.com>
Signed-off-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
parent fa72d661

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c

+23 −24
Original line number Diff line number Diff line
@@ -209,15 +209,13 @@ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size, 
			void **cpu_ptr)

{

	struct amdgpu_device *adev = (struct amdgpu_device *)kgd;

	struct kgd_mem **mem = (struct kgd_mem **) mem_obj;

	struct amdgpu_bo *bo = NULL;

	int r;



	*mem = kmalloc(sizeof(struct kgd_mem), GFP_KERNEL);

	if ((*mem) == NULL)

		return -ENOMEM;

	uint64_t gpu_addr_tmp = 0;

	void *cpu_ptr_tmp = NULL;



	r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_GTT,

			     AMDGPU_GEM_CREATE_CPU_GTT_USWC, NULL, NULL, &(*mem)->bo);

			AMDGPU_GEM_CREATE_CPU_GTT_USWC, NULL, NULL, &bo);

	if (r) {

		dev_err(adev->dev,

			"failed to allocate BO for amdkfd (%d)\n", r);
@@ -225,52 +223,53 @@ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size, 
	}



	/* map the buffer */

	r = amdgpu_bo_reserve((*mem)->bo, true);

	r = amdgpu_bo_reserve(bo, true);

	if (r) {

		dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);

		goto allocate_mem_reserve_bo_failed;

	}



	r = amdgpu_bo_pin((*mem)->bo, AMDGPU_GEM_DOMAIN_GTT,

				&(*mem)->gpu_addr);

	r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT,

				&gpu_addr_tmp);

	if (r) {

		dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);

		goto allocate_mem_pin_bo_failed;

	}

	*gpu_addr = (*mem)->gpu_addr;



	r = amdgpu_bo_kmap((*mem)->bo, &(*mem)->cpu_ptr);

	r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);

	if (r) {

		dev_err(adev->dev,

			"(%d) failed to map bo to kernel for amdkfd\n", r);

		goto allocate_mem_kmap_bo_failed;

	}

	*cpu_ptr = (*mem)->cpu_ptr;



	amdgpu_bo_unreserve((*mem)->bo);

	*mem_obj = bo;

	*gpu_addr = gpu_addr_tmp;

	*cpu_ptr = cpu_ptr_tmp;



	amdgpu_bo_unreserve(bo);



	return 0;



allocate_mem_kmap_bo_failed:

	amdgpu_bo_unpin((*mem)->bo);

	amdgpu_bo_unpin(bo);

allocate_mem_pin_bo_failed:

	amdgpu_bo_unreserve((*mem)->bo);

	amdgpu_bo_unreserve(bo);

allocate_mem_reserve_bo_failed:

	amdgpu_bo_unref(&(*mem)->bo);

	amdgpu_bo_unref(&bo);



	return r;

}



void free_gtt_mem(struct kgd_dev *kgd, void *mem_obj)

{

	struct kgd_mem *mem = (struct kgd_mem *) mem_obj;



	amdgpu_bo_reserve(mem->bo, true);

	amdgpu_bo_kunmap(mem->bo);

	amdgpu_bo_unpin(mem->bo);

	amdgpu_bo_unreserve(mem->bo);

	amdgpu_bo_unref(&(mem->bo));

	kfree(mem);

	struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj;



	amdgpu_bo_reserve(bo, true);

	amdgpu_bo_kunmap(bo);

	amdgpu_bo_unpin(bo);

	amdgpu_bo_unreserve(bo);

	amdgpu_bo_unref(&(bo));

}



void get_local_mem_info(struct kgd_dev *kgd,