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/*
* Copyright 2016 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_TTM_H__
#define __AMDGPU_TTM_H__
#include "gpu_scheduler.h"
#define AMDGPU_PL_GDS (TTM_PL_PRIV + 0)
#define AMDGPU_PL_GWS (TTM_PL_PRIV + 1)
#define AMDGPU_PL_OA (TTM_PL_PRIV + 2)
#define AMDGPU_PL_FLAG_GDS (TTM_PL_FLAG_PRIV << 0)
#define AMDGPU_PL_FLAG_GWS (TTM_PL_FLAG_PRIV << 1)
#define AMDGPU_PL_FLAG_OA (TTM_PL_FLAG_PRIV << 2)
#define AMDGPU_GTT_MAX_TRANSFER_SIZE 512
#define AMDGPU_GTT_NUM_TRANSFER_WINDOWS 2
struct amdgpu_mman {
struct ttm_bo_global_ref bo_global_ref;
struct drm_global_reference mem_global_ref;
struct ttm_bo_device bdev;
bool mem_global_referenced;
bool initialized;
#if defined(CONFIG_DEBUG_FS)
struct dentry *vram;
struct dentry *gtt;
#endif
/* buffer handling */
const struct amdgpu_buffer_funcs *buffer_funcs;
struct amdgpu_ring *buffer_funcs_ring;
struct mutex gtt_window_lock;
/* Scheduler entity for buffer moves */
struct amd_sched_entity entity;
};
extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func;
extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;
bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem);
int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
struct ttm_buffer_object *tbo,
const struct ttm_place *place,
struct ttm_mem_reg *mem);
int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset,
uint64_t dst_offset, uint32_t byte_count,
struct reservation_object *resv,
struct dma_fence **fence, bool direct_submit,
bool vm_needs_flush);
int amdgpu_fill_buffer(struct amdgpu_bo *bo,
uint64_t src_data,
struct reservation_object *resv,
struct dma_fence **fence);
int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma);
bool amdgpu_ttm_is_bound(struct ttm_tt *ttm);
int amdgpu_ttm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *bo_mem);
int amdgpu_ttm_recover_gart(struct amdgpu_device *adev);
#endif
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