drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h

   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
  40 struct 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
  61 extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func;
  62 extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;
  63
  64 bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem);
  65 uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man);
  66
  67 uint64_t amdgpu_vram_mgr_usage(struct ttm_mem_type_manager *man);
  68 uint64_t amdgpu_vram_mgr_vis_usage(struct ttm_mem_type_manager *man);
  69
  70 int 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);
  75 int amdgpu_fill_buffer(struct amdgpu_bo *bo,
  76                         uint64_t src_data,
  77                         struct reservation_object *resv,
  78                         struct dma_fence **fence);
  79
  80 int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma);
  81 bool amdgpu_ttm_is_bound(struct ttm_tt *ttm);
  82 int amdgpu_ttm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *bo_mem);
  83 int amdgpu_ttm_recover_gart(struct amdgpu_device *adev);
  84
  85 #endif