diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-12-16 22:30:05 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-12-20 19:15:06 +0300 |
| commit | b1def7fadfa544bd2467581ce40b659583eb7e79 (patch) | |
| tree | e3d8ee2ba3cdec5b318b1008d283d853fa8b50f5 /drivers/gpu/drm/ast/ast_mode.c | |
| parent | 2306f5d042e479806c3dae3044b3ebbc475118de (diff) | |
| download | linux-b1def7fadfa544bd2467581ce40b659583eb7e79.tar.xz | |
drm/ast: Init iosys_map pointer as I/O memory for damage handling
Ast hardware scans out the primary plane from video memory, which
is in I/O-memory space. Hence init the damage handler's iosys_map
pointer as I/O memory.
Not all platforms support accessing I/O memory as system memory,
although it's usually not a problem in ast's x86-based systems.
The error report is at [1].
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Fixes: f2fa5a99ca81 ("drm/ast: Convert ast to SHMEM")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://lore.kernel.org/lkml/202212170111.eInM0unS-lkp@intel.com/T/#u # 1
Link: https://patchwork.freedesktop.org/patch/msgid/20221216193005.30280-1-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/ast/ast_mode.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_mode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index c7443317c747..e82e9a8d85e5 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -636,7 +636,7 @@ static void ast_handle_damage(struct ast_plane *ast_plane, struct iosys_map *src struct drm_framebuffer *fb, const struct drm_rect *clip) { - struct iosys_map dst = IOSYS_MAP_INIT_VADDR(ast_plane->vaddr); + struct iosys_map dst = IOSYS_MAP_INIT_VADDR_IOMEM(ast_plane->vaddr); iosys_map_incr(&dst, drm_fb_clip_offset(fb->pitches[0], fb->format, clip)); drm_fb_memcpy(&dst, fb->pitches, src, fb, clip); |