drivers/gpu/drm/radeon/radeon_object.h

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 #ifndef __RADEON_OBJECT_H__
  29 #define __RADEON_OBJECT_H__
  30
  31 #include <drm/radeon_drm.h>
  32 #include "radeon.h"
  33
  34 /**
  35  * radeon_mem_type_to_domain - return domain corresponding to mem_type
  36  * @mem_type:   ttm memory type
  37  *
  38  * Returns corresponding domain of the ttm mem_type
  39  */
  40 static inline unsigned radeon_mem_type_to_domain(u32 mem_type)
  41 {
  42         switch (mem_type) {
  43         case TTM_PL_VRAM:
  44                 return RADEON_GEM_DOMAIN_VRAM;
  45         case TTM_PL_TT:
  46                 return RADEON_GEM_DOMAIN_GTT;
  47         case TTM_PL_SYSTEM:
  48                 return RADEON_GEM_DOMAIN_CPU;
  49         default:
  50                 break;
  51         }
  52         return 0;
  53 }
  54
  55 /**
  56  * radeon_bo_reserve - reserve bo
  57  * @bo:         bo structure
  58  * @no_intr:    don't return -ERESTARTSYS on pending signal
  59  *
  60  * Returns:
  61  * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
  62  * a signal. Release all buffer reservations and return to user-space.
  63  */
  64 static inline int radeon_bo_reserve(struct radeon_bo *bo, bool no_intr)
  65 {
  66         int r;
  67
  68         r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
  69         if (unlikely(r != 0)) {
  70                 if (r != -ERESTARTSYS)
  71                         dev_err(bo->rdev->dev, "%p reserve failed\n", bo);
  72                 return r;
  73         }
  74         return 0;
  75 }
  76
  77 static inline void radeon_bo_unreserve(struct radeon_bo *bo)
  78 {
  79         ttm_bo_unreserve(&bo->tbo);
  80 }
  81
  82 /**
  83  * radeon_bo_gpu_offset - return GPU offset of bo
  84  * @bo: radeon object for which we query the offset
  85  *
  86  * Returns current GPU offset of the object.
  87  *
  88  * Note: object should either be pinned or reserved when calling this
  89  * function, it might be useful to add check for this for debugging.
  90  */
  91 static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
  92 {
  93         return bo->tbo.offset;
  94 }
  95
  96 static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
  97 {
  98         return bo->tbo.num_pages << PAGE_SHIFT;
  99 }
 100
 101 static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo)
 102 {
 103         return (bo->tbo.num_pages << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
 104 }
 105
 106 static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo)
 107 {
 108         return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
 109 }
 110
 111 /**
 112  * radeon_bo_mmap_offset - return mmap offset of bo
 113  * @bo: radeon object for which we query the offset
 114  *
 115  * Returns mmap offset of the object.
 116  */
 117 static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
 118 {
 119         return drm_vma_node_offset_addr(&bo->tbo.vma_node);
 120 }
 121
 122 extern int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type,
 123                           bool no_wait);
 124
 125 extern int radeon_bo_create(struct radeon_device *rdev,
 126                             unsigned long size, int byte_align,
 127                             bool kernel, u32 domain, u32 flags,
 128                             struct sg_table *sg,
 129                             struct reservation_object *resv,
 130                             struct radeon_bo **bo_ptr);
 131 extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
 132 extern void radeon_bo_kunmap(struct radeon_bo *bo);
 133 extern struct radeon_bo *radeon_bo_ref(struct radeon_bo *bo);
 134 extern void radeon_bo_unref(struct radeon_bo **bo);
 135 extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr);
 136 extern int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain,
 137                                     u64 max_offset, u64 *gpu_addr);
 138 extern int radeon_bo_unpin(struct radeon_bo *bo);
 139 extern int radeon_bo_evict_vram(struct radeon_device *rdev);
 140 extern void radeon_bo_force_delete(struct radeon_device *rdev);
 141 extern int radeon_bo_init(struct radeon_device *rdev);
 142 extern void radeon_bo_fini(struct radeon_device *rdev);
 143 extern int radeon_bo_list_validate(struct radeon_device *rdev,
 144                                    struct ww_acquire_ctx *ticket,
 145                                    struct list_head *head, int ring);
 146 extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
 147                                 u32 tiling_flags, u32 pitch);
 148 extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
 149                                 u32 *tiling_flags, u32 *pitch);
 150 extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
 151                                 bool force_drop);
 152 extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
 153                                   bool evict,
 154                                   struct ttm_mem_reg *new_mem);
 155 extern int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
 156 extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
 157 extern void radeon_bo_fence(struct radeon_bo *bo, struct radeon_fence *fence,
 158                             bool shared);
 159
 160 /*
 161  * sub allocation
 162  */
 163
 164 static inline uint64_t radeon_sa_bo_gpu_addr(struct radeon_sa_bo *sa_bo)
 165 {
 166         return sa_bo->manager->gpu_addr + sa_bo->soffset;
 167 }
 168
 169 static inline void * radeon_sa_bo_cpu_addr(struct radeon_sa_bo *sa_bo)
 170 {
 171         return sa_bo->manager->cpu_ptr + sa_bo->soffset;
 172 }
 173
 174 extern int radeon_sa_bo_manager_init(struct radeon_device *rdev,
 175                                      struct radeon_sa_manager *sa_manager,
 176                                      unsigned size, u32 align, u32 domain,
 177                                      u32 flags);
 178 extern void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
 179                                       struct radeon_sa_manager *sa_manager);
 180 extern int radeon_sa_bo_manager_start(struct radeon_device *rdev,
 181                                       struct radeon_sa_manager *sa_manager);
 182 extern int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
 183                                         struct radeon_sa_manager *sa_manager);
 184 extern int radeon_sa_bo_new(struct radeon_device *rdev,
 185                             struct radeon_sa_manager *sa_manager,
 186                             struct radeon_sa_bo **sa_bo,
 187                             unsigned size, unsigned align);
 188 extern void radeon_sa_bo_free(struct radeon_device *rdev,
 189                               struct radeon_sa_bo **sa_bo,
 190                               struct radeon_fence *fence);
 191 #if defined(CONFIG_DEBUG_FS)
 192 extern void radeon_sa_bo_dump_debug_info(struct radeon_sa_manager *sa_manager,
 193                                          struct seq_file *m);
 194 #endif
 195
 196
 197 #endif