LXR linux/drivers/gpu/drm/amd/amdgpu/amdgpu

   1/*
   2 * Copyright 2016 Advanced Micro Devices, Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 */
  23
  24#ifndef __AMDGPU_TTM_H__
  25#define __AMDGPU_TTM_H__
  26
  27#include "gpu_scheduler.h"
  28
  29#define AMDGPU_PL_GDS           (TTM_PL_PRIV + 0)
  30#define AMDGPU_PL_GWS           (TTM_PL_PRIV + 1)
  31#define AMDGPU_PL_OA            (TTM_PL_PRIV + 2)
  32
  33#define AMDGPU_PL_FLAG_GDS              (TTM_PL_FLAG_PRIV << 0)
  34#define AMDGPU_PL_FLAG_GWS              (TTM_PL_FLAG_PRIV << 1)
  35#define AMDGPU_PL_FLAG_OA               (TTM_PL_FLAG_PRIV << 2)
  36
  37#define AMDGPU_GTT_MAX_TRANSFER_SIZE    512
  38#define AMDGPU_GTT_NUM_TRANSFER_WINDOWS 2
  39
  40struct amdgpu_mman {
  41        struct ttm_bo_global_ref        bo_global_ref;
  42        struct drm_global_reference     mem_global_ref;
  43        struct ttm_bo_device            bdev;
  44        bool                            mem_global_referenced;
  45        bool                            initialized;
  46
  47#if defined(CONFIG_DEBUG_FS)
  48        struct dentry                   *vram;
  49        struct dentry                   *gtt;
  50#endif
  51
  52        /* buffer handling */
  53        const struct amdgpu_buffer_funcs        *buffer_funcs;
  54        struct amdgpu_ring                      *buffer_funcs_ring;
  55
  56        struct mutex                            gtt_window_lock;
  57        /* Scheduler entity for buffer moves */
  58        struct amd_sched_entity                 entity;
  59};
  60
  61extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func;
  62extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;
  63
  64bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem);
  65uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man);
  66
  67uint64_t amdgpu_vram_mgr_usage(struct ttm_mem_type_manager *man);
  68uint64_t amdgpu_vram_mgr_vis_usage(struct ttm_mem_type_manager *man);
  69
  70int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset,
  71                       uint64_t dst_offset, uint32_t byte_count,
  72                       struct reservation_object *resv,
  73                       struct dma_fence **fence, bool direct_submit,
  74                       bool vm_needs_flush);
  75int amdgpu_fill_buffer(struct amdgpu_bo *bo,
  76                        uint64_t src_data,
  77                        struct reservation_object *resv,
  78                        struct dma_fence **fence);
  79
  80int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma);
  81bool amdgpu_ttm_is_bound(struct ttm_tt *ttm);
  82int amdgpu_ttm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *bo_mem);
  83int amdgpu_ttm_recover_gart(struct amdgpu_device *adev);
  84
  85#endif
  86