diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c | 84 |
1 files changed, 64 insertions, 20 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c index c4f5114aee7c..80bc37b274e7 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c @@ -39,6 +39,9 @@ static uint32_t vram_ne_placement_flags = TTM_PL_FLAG_VRAM | static uint32_t sys_placement_flags = TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED; +static uint32_t gmr_placement_flags = VMW_PL_FLAG_GMR | + TTM_PL_FLAG_CACHED; + struct ttm_placement vmw_vram_placement = { .fpfn = 0, .lpfn = 0, @@ -48,6 +51,20 @@ struct ttm_placement vmw_vram_placement = { .busy_placement = &vram_placement_flags }; +static uint32_t vram_gmr_placement_flags[] = { + TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED, + VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED +}; + +struct ttm_placement vmw_vram_gmr_placement = { + .fpfn = 0, + .lpfn = 0, + .num_placement = 2, + .placement = vram_gmr_placement_flags, + .num_busy_placement = 1, + .busy_placement = &gmr_placement_flags +}; + struct ttm_placement vmw_vram_sys_placement = { .fpfn = 0, .lpfn = 0, @@ -77,27 +94,52 @@ struct ttm_placement vmw_sys_placement = { struct vmw_ttm_backend { struct ttm_backend backend; + struct page **pages; + unsigned long num_pages; + struct vmw_private *dev_priv; + int gmr_id; }; static int vmw_ttm_populate(struct ttm_backend *backend, unsigned long num_pages, struct page **pages, struct page *dummy_read_page) { + struct vmw_ttm_backend *vmw_be = + container_of(backend, struct vmw_ttm_backend, backend); + + vmw_be->pages = pages; + vmw_be->num_pages = num_pages; + return 0; } static int vmw_ttm_bind(struct ttm_backend *backend, struct ttm_mem_reg *bo_mem) { - return 0; + struct vmw_ttm_backend *vmw_be = + container_of(backend, struct vmw_ttm_backend, backend); + + vmw_be->gmr_id = bo_mem->start; + + return vmw_gmr_bind(vmw_be->dev_priv, vmw_be->pages, + vmw_be->num_pages, vmw_be->gmr_id); } static int vmw_ttm_unbind(struct ttm_backend *backend) { + struct vmw_ttm_backend *vmw_be = + container_of(backend, struct vmw_ttm_backend, backend); + + vmw_gmr_unbind(vmw_be->dev_priv, vmw_be->gmr_id); return 0; } static void vmw_ttm_clear(struct ttm_backend *backend) { + struct vmw_ttm_backend *vmw_be = + container_of(backend, struct vmw_ttm_backend, backend); + + vmw_be->pages = NULL; + vmw_be->num_pages = 0; } static void vmw_ttm_destroy(struct ttm_backend *backend) @@ -125,6 +167,7 @@ struct ttm_backend *vmw_ttm_backend_init(struct ttm_bo_device *bdev) return NULL; vmw_be->backend.func = &vmw_ttm_func; + vmw_be->dev_priv = container_of(bdev, struct vmw_private, bdev); return &vmw_be->backend; } @@ -142,15 +185,28 @@ int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, /* System memory */ man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; - man->available_caching = TTM_PL_MASK_CACHING; + man->available_caching = TTM_PL_FLAG_CACHED; man->default_caching = TTM_PL_FLAG_CACHED; break; case TTM_PL_VRAM: /* "On-card" video ram */ + man->func = &ttm_bo_manager_func; man->gpu_offset = 0; man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE; - man->available_caching = TTM_PL_MASK_CACHING; - man->default_caching = TTM_PL_FLAG_WC; + man->available_caching = TTM_PL_FLAG_CACHED; + man->default_caching = TTM_PL_FLAG_CACHED; + break; + case VMW_PL_GMR: + /* + * "Guest Memory Regions" is an aperture like feature with + * one slot per bo. There is an upper limit of the number of + * slots as well as the bo size. + */ + man->func = &vmw_gmrid_manager_func; + man->gpu_offset = 0; + man->flags = TTM_MEMTYPE_FLAG_CMA | TTM_MEMTYPE_FLAG_MAPPABLE; + man->available_caching = TTM_PL_FLAG_CACHED; + man->default_caching = TTM_PL_FLAG_CACHED; break; default: DRM_ERROR("Unsupported memory type %u\n", (unsigned)type); @@ -174,18 +230,6 @@ static int vmw_verify_access(struct ttm_buffer_object *bo, struct file *filp) return 0; } -static void vmw_move_notify(struct ttm_buffer_object *bo, - struct ttm_mem_reg *new_mem) -{ - if (new_mem->mem_type != TTM_PL_SYSTEM) - vmw_dmabuf_gmr_unbind(bo); -} - -static void vmw_swap_notify(struct ttm_buffer_object *bo) -{ - vmw_dmabuf_gmr_unbind(bo); -} - static int vmw_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]; @@ -200,10 +244,10 @@ static int vmw_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg return -EINVAL; switch (mem->mem_type) { case TTM_PL_SYSTEM: - /* System memory */ + case VMW_PL_GMR: return 0; case TTM_PL_VRAM: - mem->bus.offset = mem->mm_node->start << PAGE_SHIFT; + mem->bus.offset = mem->start << PAGE_SHIFT; mem->bus.base = dev_priv->vram_start; mem->bus.is_iomem = true; break; @@ -276,8 +320,8 @@ struct ttm_bo_driver vmw_bo_driver = { .sync_obj_flush = vmw_sync_obj_flush, .sync_obj_unref = vmw_sync_obj_unref, .sync_obj_ref = vmw_sync_obj_ref, - .move_notify = vmw_move_notify, - .swap_notify = vmw_swap_notify, + .move_notify = NULL, + .swap_notify = NULL, .fault_reserve_notify = &vmw_ttm_fault_reserve_notify, .io_mem_reserve = &vmw_ttm_io_mem_reserve, .io_mem_free = &vmw_ttm_io_mem_free, |