diff options
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo_util.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_util.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 4834c463c38..1df856f7856 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -187,7 +187,7 @@ void ttm_mem_io_free_vm(struct ttm_buffer_object *bo) } } -int ttm_mem_reg_ioremap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem, +static int ttm_mem_reg_ioremap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem, void **virtual) { struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; @@ -219,7 +219,7 @@ int ttm_mem_reg_ioremap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem, return 0; } -void ttm_mem_reg_iounmap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem, +static void ttm_mem_reg_iounmap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem, void *virtual) { struct ttm_mem_type_manager *man; @@ -350,10 +350,14 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo, goto out2; /* - * Move nonexistent data. NOP. + * Don't move nonexistent data. Clear destination instead. */ - if (old_iomap == NULL && ttm == NULL) + if (old_iomap == NULL && + (ttm == NULL || (ttm->state == tt_unpopulated && + !(ttm->page_flags & TTM_PAGE_FLAG_SWAPPED)))) { + memset_io(new_iomap, 0, new_mem->num_pages*PAGE_SIZE); goto out2; + } /* * TTM might be null for moves within the same region. @@ -590,7 +594,7 @@ int ttm_bo_kmap(struct ttm_buffer_object *bo, if (start_page > bo->num_pages) return -EINVAL; #if 0 - if (num_pages > 1 && !DRM_SUSER(DRM_CURPROC)) + if (num_pages > 1 && !capable(CAP_SYS_ADMIN)) return -EPERM; #endif (void) ttm_mem_io_lock(man, false); |