From 49a3f51dfeeecb52c5aa28c5cb9592fe5e39bf95 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Tue, 3 Nov 2020 10:30:11 +0100 Subject: drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch replaces the vmap/vunmap's use of raw pointers in GEM object functions with instances of struct dma_buf_map. GEM backends are converted as well. For most of them, this simply changes the returned type. TTM-based drivers now return information about the location of the memory, either system or I/O memory. GEM VRAM helpers and qxl now use ttm_bo_vmap() et al. Amdgpu, nouveau and radeon use drm_gem_ttm_vmap() et al instead of implementing their own vmap callbacks. v7: * init QXL cursor to mapped BO buffer (kernel test robot) v5: * update vkms after switch to shmem v4: * use ttm_bo_vmap(), drm_gem_ttm_vmap(), et al. (Daniel, Christian) * fix a trailing { in drm_gem_vmap() * remove several empty functions instead of converting them (Daniel) * comment uses of raw pointers with a TODO (Daniel) * TODO list: convert more helpers to use struct dma_buf_map Signed-off-by: Thomas Zimmermann Acked-by: Christian König Tested-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20201103093015.1063-7-tzimmermann@suse.de --- include/drm/drm_gem.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include/drm/drm_gem.h') diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h index c38dd35da00b..5e6daa1c982f 100644 --- a/include/drm/drm_gem.h +++ b/include/drm/drm_gem.h @@ -39,6 +39,7 @@ #include +struct dma_buf_map; struct drm_gem_object; /** @@ -138,7 +139,7 @@ struct drm_gem_object_funcs { * * This callback is optional. */ - void *(*vmap)(struct drm_gem_object *obj); + int (*vmap)(struct drm_gem_object *obj, struct dma_buf_map *map); /** * @vunmap: @@ -148,7 +149,7 @@ struct drm_gem_object_funcs { * * This callback is optional. */ - void (*vunmap)(struct drm_gem_object *obj, void *vaddr); + void (*vunmap)(struct drm_gem_object *obj, struct dma_buf_map *map); /** * @mmap: -- cgit v1.2.3