static int bochs_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp) { struct bochs_bo *bochsbo = bochs_bo(bo); return drm_vma_node_verify_access(&bochsbo->gem.vma_node, filp); }
static int hibmc_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp) { struct hibmc_bo *hibmcbo = hibmc_bo(bo); return drm_vma_node_verify_access(&hibmcbo->gem.vma_node, filp->private_data); }
static int radeon_verify_access(struct ttm_buffer_object *bo, struct file *filp) { struct radeon_bo *rbo = container_of(bo, struct radeon_bo, tbo); return drm_vma_node_verify_access(&rbo->gem_base.vma_node, filp); }
static void qxl_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *placement) { struct qxl_bo *qbo; static struct ttm_place placements = { .fpfn = 0, .lpfn = 0, .flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM }; if (!qxl_ttm_bo_is_qxl_bo(bo)) { placement->placement = &placements; placement->busy_placement = &placements; placement->num_placement = 1; placement->num_busy_placement = 1; return; } qbo = to_qxl_bo(bo); qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU, false); *placement = qbo->placement; } static int qxl_verify_access(struct ttm_buffer_object *bo, struct file *filp) { struct qxl_bo *qbo = to_qxl_bo(bo); return drm_vma_node_verify_access(&qbo->gem_base.vma_node, filp->private_data); } static int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) { struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; struct qxl_device *qdev = qxl_get_qdev(bdev); mem->bus.addr = NULL; mem->bus.offset = 0; mem->bus.size = mem->num_pages << PAGE_SHIFT; mem->bus.base = 0; mem->bus.is_iomem = false; if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) return -EINVAL; switch (mem->mem_type) { case TTM_PL_SYSTEM: /* system memory */ return 0; case TTM_PL_VRAM: mem->bus.is_iomem = true; mem->bus.base = qdev->vram_base; mem->bus.offset = mem->start << PAGE_SHIFT; break; case TTM_PL_PRIV: mem->bus.is_iomem = true; mem->bus.base = qdev->surfaceram_base; mem->bus.offset = mem->start << PAGE_SHIFT; break; default: return -EINVAL; } return 0; } static void qxl_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) { } /* * TTM backend functions. */ struct qxl_ttm_tt { struct ttm_dma_tt ttm; struct qxl_device *qdev; u64 offset; }; static int qxl_ttm_backend_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem) { struct qxl_ttm_tt *gtt = (void *)ttm; gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT); if (!ttm->num_pages) { WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n", ttm->num_pages, bo_mem, ttm); } /* Not implemented */ return -1; } static int qxl_ttm_backend_unbind(struct ttm_tt *ttm) { /* Not implemented */ return -1; } static void qxl_ttm_backend_destroy(struct ttm_tt *ttm) { struct qxl_ttm_tt *gtt = (void *)ttm; ttm_dma_tt_fini(>t->ttm); kfree(gtt); } static struct ttm_backend_func qxl_backend_func = { .bind = &qxl_ttm_backend_bind, .unbind = &qxl_ttm_backend_unbind, .destroy = &qxl_ttm_backend_destroy, }; static int qxl_ttm_tt_populate(struct ttm_tt *ttm) { int r; if (ttm->state != tt_unpopulated) return 0; r = ttm_pool_populate(ttm); if (r) return r; return 0; }