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| author |  Thomas Zimmermann <tzimmermann@suse.de>
| 2022-12-16 20:30:05 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de>
| 2022-12-20 17:15:06 +0100 |
| commit | b1def7fadfa544bd2467581ce40b659583eb7e79 (patch) | |
| tree | e3d8ee2ba3cdec5b318b1008d283d853fa8b50f5 /include/drm/drm_debugfs.h | |
| parent | drm/sprd: remove redundant error logging (diff) | |
| download | linux-b1def7fadfa544bd2467581ce40b659583eb7e79.tar.gz linux-b1def7fadfa544bd2467581ce40b659583eb7e79.tar.bz2 linux-b1def7fadfa544bd2467581ce40b659583eb7e79.zip | |
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 'include/drm/drm_debugfs.h')
0 files changed, 0 insertions, 0 deletions