diff options
author | Thomas Zimmermann <tzimmermann@suse.de> | 2020-11-03 10:30:11 +0100 |
---|---|---|
committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-11-09 09:19:24 +0100 |
commit | 49a3f51dfeeecb52c5aa28c5cb9592fe5e39bf95 (patch) | |
tree | 60399216163b2213ccd45bdddc2dde62f6e0002d /drivers/gpu/drm/vkms/vkms_plane.c | |
parent | 43676605f890b218e551f396a55dbaea7799acb4 (diff) |
drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends
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 <tzimmermann@suse.de>
Acked-by: Christian König <christian.koenig@amd.com>
Tested-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201103093015.1063-7-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/vkms/vkms_plane.c')
-rw-r--r-- | drivers/gpu/drm/vkms/vkms_plane.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c index 9890137bcb8d..0824327cc860 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -1,5 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ +#include <linux/dma-buf-map.h> + #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_fourcc.h> @@ -146,15 +148,16 @@ static int vkms_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state) { struct drm_gem_object *gem_obj; - void *vaddr; + struct dma_buf_map map; + int ret; if (!state->fb) return 0; gem_obj = drm_gem_fb_get_obj(state->fb, 0); - vaddr = drm_gem_shmem_vmap(gem_obj); - if (IS_ERR(vaddr)) - DRM_ERROR("vmap failed: %li\n", PTR_ERR(vaddr)); + ret = drm_gem_shmem_vmap(gem_obj, &map); + if (ret) + DRM_ERROR("vmap failed: %d\n", ret); return drm_gem_fb_prepare_fb(plane, state); } @@ -164,13 +167,15 @@ static void vkms_cleanup_fb(struct drm_plane *plane, { struct drm_gem_object *gem_obj; struct drm_gem_shmem_object *shmem_obj; + struct dma_buf_map map; if (!old_state->fb) return; gem_obj = drm_gem_fb_get_obj(old_state->fb, 0); shmem_obj = to_drm_gem_shmem_obj(drm_gem_fb_get_obj(old_state->fb, 0)); - drm_gem_shmem_vunmap(gem_obj, shmem_obj->vaddr); + dma_buf_map_set_vaddr(&map, shmem_obj->vaddr); + drm_gem_shmem_vunmap(gem_obj, &map); } static const struct drm_plane_helper_funcs vkms_primary_helper_funcs = { |