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| author | Liviu Dudau <Liviu.Dudau@arm.com> | 2018-10-02 14:11:00 +0300 |
|---|---|---|
| committer | Liviu Dudau <Liviu.Dudau@arm.com> | 2018-10-02 14:11:00 +0300 |
| commit | 66da13a519b33143932df5dc89973781c027c827 (patch) | |
| tree | 10a59d19a43846cf8bf058fc2aab82c037b052dc /drivers/gpu/drm/arm/malidp_planes.c | |
| parent | 1f23a56a46b81de50eb8b898f06296ca06720a99 (diff) | |
| download | linux-66da13a519b33143932df5dc89973781c027c827.tar.xz | |
drm/arm/malidp: Validate rotations for compressed/uncompressed framebuffers for each layer
Add support for compressed framebuffers that are described using
the framebuffer's modifier field. Mali DP uses the rotation memory for
the decompressor of the format, so we need to check for space when
the modifiers are present.
Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Reviewed-by: Brian Starkey <brian.starkey@arm.com>
[re-worded commit, rebased, cleaned up duplicated checks for
RGB888 and BGR888 and removed additional parameter for
rotmem_required function hook]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Diffstat (limited to 'drivers/gpu/drm/arm/malidp_planes.c')
| -rw-r--r-- | drivers/gpu/drm/arm/malidp_planes.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c index 76aafc296e1b..837a24d56675 100644 --- a/drivers/gpu/drm/arm/malidp_planes.c +++ b/drivers/gpu/drm/arm/malidp_planes.c @@ -440,11 +440,20 @@ static int malidp_de_plane_check(struct drm_plane *plane, if (ret) return ret; - /* packed RGB888 / BGR888 can't be rotated or flipped */ - if (state->rotation != DRM_MODE_ROTATE_0 && - (fb->format->format == DRM_FORMAT_RGB888 || - fb->format->format == DRM_FORMAT_BGR888)) - return -EINVAL; + /* validate the rotation constraints for each layer */ + if (state->rotation != DRM_MODE_ROTATE_0) { + if (mp->layer->rot == ROTATE_NONE) + return -EINVAL; + if ((mp->layer->rot == ROTATE_COMPRESSED) && !(fb->modifier)) + return -EINVAL; + /* + * packed RGB888 / BGR888 can't be rotated or flipped + * unless they are stored in a compressed way + */ + if ((fb->format->format == DRM_FORMAT_RGB888 || + fb->format->format == DRM_FORMAT_BGR888) && !(fb->modifier)) + return -EINVAL; + } ms->rotmem_size = 0; if (state->rotation & MALIDP_ROTATED_MASK) { |