77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/*
|
|
* Copyright 2017 Advanced Micro Devices, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#ifndef __AMDGPU_GART_H__
|
|
#define __AMDGPU_GART_H__
|
|
|
|
#include <linux/types.h>
|
|
|
|
/*
|
|
* GART structures, functions & helpers
|
|
*/
|
|
struct amdgpu_device;
|
|
struct amdgpu_bo;
|
|
struct amdgpu_gart_funcs;
|
|
|
|
#define AMDGPU_GPU_PAGE_SIZE 4096
|
|
#define AMDGPU_GPU_PAGE_MASK (AMDGPU_GPU_PAGE_SIZE - 1)
|
|
#define AMDGPU_GPU_PAGE_SHIFT 12
|
|
#define AMDGPU_GPU_PAGE_ALIGN(a) (((a) + AMDGPU_GPU_PAGE_MASK) & ~AMDGPU_GPU_PAGE_MASK)
|
|
|
|
struct amdgpu_gart {
|
|
dma_addr_t table_addr;
|
|
struct amdgpu_bo *robj;
|
|
void *ptr;
|
|
unsigned num_gpu_pages;
|
|
unsigned num_cpu_pages;
|
|
unsigned table_size;
|
|
#ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS
|
|
struct page **pages;
|
|
#endif
|
|
bool ready;
|
|
|
|
/* Asic default pte flags */
|
|
uint64_t gart_pte_flags;
|
|
|
|
const struct amdgpu_gart_funcs *gart_funcs;
|
|
};
|
|
|
|
int amdgpu_gart_table_ram_alloc(struct amdgpu_device *adev);
|
|
void amdgpu_gart_table_ram_free(struct amdgpu_device *adev);
|
|
int amdgpu_gart_table_vram_alloc(struct amdgpu_device *adev);
|
|
void amdgpu_gart_table_vram_free(struct amdgpu_device *adev);
|
|
int amdgpu_gart_table_vram_pin(struct amdgpu_device *adev);
|
|
void amdgpu_gart_table_vram_unpin(struct amdgpu_device *adev);
|
|
int amdgpu_gart_init(struct amdgpu_device *adev);
|
|
void amdgpu_gart_fini(struct amdgpu_device *adev);
|
|
int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
|
|
int pages);
|
|
int amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
|
|
int pages, dma_addr_t *dma_addr, uint64_t flags,
|
|
void *dst);
|
|
int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
|
|
int pages, struct page **pagelist,
|
|
dma_addr_t *dma_addr, uint64_t flags);
|
|
|
|
#endif
|