LXR linux/drivers/gpu/drm/radeon/radeon

   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 */
  40static 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 */
  64static 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
  77static 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 */
  91static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
  92{
  93        struct radeon_device *rdev;
  94        u64 start = 0;
  95
  96        rdev = radeon_get_rdev(bo->tbo.bdev);
  97
  98        switch (bo->tbo.resource->mem_type) {
  99        case TTM_PL_TT:
 100                start = rdev->mc.gtt_start;
 101                break;
 102        case TTM_PL_VRAM:
 103                start = rdev->mc.vram_start;
 104                break;
 105        }
 106
 107        return (bo->tbo.resource->start << PAGE_SHIFT) + start;
 108}
 109
 110static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
 111{
 112        return bo->tbo.base.size;
 113}
 114
 115static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo)
 116{
 117        return bo->tbo.base.size / RADEON_GPU_PAGE_SIZE;
 118}
 119
 120static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo)
 121{
 122        return (bo->tbo.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
 123}
 124
 125/**
 126 * radeon_bo_mmap_offset - return mmap offset of bo
 127 * @bo: radeon object for which we query the offset
 128 *
 129 * Returns mmap offset of the object.
 130 */
 131static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
 132{
 133        return drm_vma_node_offset_addr(&bo->tbo.base.vma_node);
 134}
 135
 136extern int radeon_bo_create(struct radeon_device *rdev,
 137                            unsigned long size, int byte_align,
 138                            bool kernel, u32 domain, u32 flags,
 139                            struct sg_table *sg,
 140                            struct dma_resv *resv,
 141                            struct radeon_bo **bo_ptr);
 142extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
 143extern void radeon_bo_kunmap(struct radeon_bo *bo);
 144extern struct radeon_bo *radeon_bo_ref(struct radeon_bo *bo);
 145extern void radeon_bo_unref(struct radeon_bo **bo);
 146extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr);
 147extern int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain,
 148                                    u64 max_offset, u64 *gpu_addr);
 149extern void radeon_bo_unpin(struct radeon_bo *bo);
 150extern int radeon_bo_evict_vram(struct radeon_device *rdev);
 151extern void radeon_bo_force_delete(struct radeon_device *rdev);
 152extern int radeon_bo_init(struct radeon_device *rdev);
 153extern void radeon_bo_fini(struct radeon_device *rdev);
 154extern int radeon_bo_list_validate(struct radeon_device *rdev,
 155                                   struct ww_acquire_ctx *ticket,
 156                                   struct list_head *head, int ring);
 157extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
 158                                u32 tiling_flags, u32 pitch);
 159extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
 160                                u32 *tiling_flags, u32 *pitch);
 161extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
 162                                bool force_drop);
 163extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
 164                                  unsigned int old_type,
 165                                  struct ttm_resource *new_mem);
 166extern vm_fault_t radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
 167extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
 168extern void radeon_bo_fence(struct radeon_bo *bo, struct radeon_fence *fence,
 169                            bool shared);
 170
 171/*
 172 * sub allocation
 173 */
 174
 175static inline uint64_t radeon_sa_bo_gpu_addr(struct radeon_sa_bo *sa_bo)
 176{
 177        return sa_bo->manager->gpu_addr + sa_bo->soffset;
 178}
 179
 180static inline void * radeon_sa_bo_cpu_addr(struct radeon_sa_bo *sa_bo)
 181{
 182        return sa_bo->manager->cpu_ptr + sa_bo->soffset;
 183}
 184
 185extern int radeon_sa_bo_manager_init(struct radeon_device *rdev,
 186                                     struct radeon_sa_manager *sa_manager,
 187                                     unsigned size, u32 align, u32 domain,
 188                                     u32 flags);
 189extern void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
 190                                      struct radeon_sa_manager *sa_manager);
 191extern int radeon_sa_bo_manager_start(struct radeon_device *rdev,
 192                                      struct radeon_sa_manager *sa_manager);
 193extern int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
 194                                        struct radeon_sa_manager *sa_manager);
 195extern int radeon_sa_bo_new(struct radeon_device *rdev,
 196                            struct radeon_sa_manager *sa_manager,
 197                            struct radeon_sa_bo **sa_bo,
 198                            unsigned size, unsigned align);
 199extern void radeon_sa_bo_free(struct radeon_device *rdev,
 200                              struct radeon_sa_bo **sa_bo,
 201                              struct radeon_fence *fence);
 202#if defined(CONFIG_DEBUG_FS)
 203extern void radeon_sa_bo_dump_debug_info(struct radeon_sa_manager *sa_manager,
 204                                         struct seq_file *m);
 205#endif
 206
 207
 208#endif
 209