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drm/gud: Map framebuffer BOs with drm_gem_fb_vmap()

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Abstract the framebuffer details by mapping its BOs with a call
to drm_gem_fb_vmap(). Unmap with drm_gem_fb_vunmap().

The call to drm_gem_fb_vmap() ensures that all BOs are mapped
correctly. Gud still only supports single-plane formats.

No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210730183511.20080-5-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2021-07-30 20:35:10 +02:00
parent 0ec77bd92b
commit 0029d31829
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/gpu/drm/gud/gud_pipe.c
View file

@ -14,8 +14,8 @@
#include <drm/drm_format_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_print.h>
#include <drm/drm_rect.h>
#include <drm/drm_simple_kms_helper.h>
@ -152,7 +152,7 @@ static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb,
{
struct dma_buf_attachment *import_attach = fb->obj[0]->import_attach;
u8 compression = gdrm->compression;
struct dma_buf_map map;
struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
void *vaddr, *buf;
size_t pitch, len;
int ret = 0;
@ -162,11 +162,11 @@ static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb,
if (len > gdrm->bulk_len)
return -E2BIG;
ret = drm_gem_shmem_vmap(fb->obj[0], &map);
ret = drm_gem_fb_vmap(fb, map);
if (ret)
return ret;
vaddr = map.vaddr + fb->offsets[0];
vaddr = map[0].vaddr + fb->offsets[0];
ret = drm_gem_fb_begin_cpu_access(fb, DMA_FROM_DEVICE);
if (ret)
@ -225,7 +225,7 @@ static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb,
end_cpu_access:
drm_gem_fb_end_cpu_access(fb, DMA_FROM_DEVICE);
vunmap:
drm_gem_shmem_vunmap(fb->obj[0], &map);
drm_gem_fb_vunmap(fb, map);
return ret;
}