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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2020-11-03 12:30:11 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-11-09 11:19:24 +0300 |
| commit | 49a3f51dfeeecb52c5aa28c5cb9592fe5e39bf95 (patch) | |
| tree | 60399216163b2213ccd45bdddc2dde62f6e0002d /drivers/gpu/drm/mgag200 | |
| parent | 43676605f890b218e551f396a55dbaea7799acb4 (diff) | |
| download | linux-49a3f51dfeeecb52c5aa28c5cb9592fe5e39bf95.tar.xz | |
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/mgag200')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_mode.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index bbe4e60dfd08..1dfc42170059 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -9,6 +9,7 @@ */ #include <linux/delay.h> +#include <linux/dma-buf-map.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_atomic_state_helper.h> @@ -1551,15 +1552,18 @@ mgag200_handle_damage(struct mga_device *mdev, struct drm_framebuffer *fb, struct drm_rect *clip) { struct drm_device *dev = &mdev->base; + struct dma_buf_map map; void *vmap; + int ret; - vmap = drm_gem_shmem_vmap(fb->obj[0]); - if (drm_WARN_ON(dev, !vmap)) + ret = drm_gem_shmem_vmap(fb->obj[0], &map); + if (drm_WARN_ON(dev, ret)) return; /* BUG: SHMEM BO should always be vmapped */ + vmap = map.vaddr; /* TODO: Use mapping abstraction properly */ drm_fb_memcpy_dstclip(mdev->vram, vmap, fb, clip); - drm_gem_shmem_vunmap(fb->obj[0], vmap); + drm_gem_shmem_vunmap(fb->obj[0], &map); /* Always scanout image at VRAM offset 0 */ mgag200_set_startadd(mdev, (u32)0); |