From: Mark Yacoub markyacoub@google.com
[Why] The rotation property must have a valid bitmask value. 0 isn't a valid value. The state should not be overwritten when performing an overlay value check.
[How] Do not overwrite state during the check.
Resolves: IGT@kms_properties@get_properties-sanity-{atomic,non-atomic}
Signed-off-by: Mark Yacoub markyacoub@chromium.org --- drivers/gpu/drm/mediatek/mtk_disp_drv.h | 2 +- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 20 +++++++------------- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 5 ++--- 3 files changed, 10 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h index 86c3068894b11..2fc566964f68e 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -64,7 +64,7 @@ void mtk_ovl_config(struct device *dev, unsigned int w, unsigned int h, unsigned int vrefresh, unsigned int bpc, struct cmdq_pkt *cmdq_pkt); int mtk_ovl_layer_check(struct device *dev, unsigned int idx, - struct mtk_plane_state *mtk_state); + const struct mtk_plane_state *mtk_state); void mtk_ovl_layer_config(struct device *dev, unsigned int idx, struct mtk_plane_state *state, struct cmdq_pkt *cmdq_pkt); diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index ea5760f856ec6..13999564304bc 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -190,19 +190,15 @@ unsigned int mtk_ovl_supported_rotations(struct device *dev) }
int mtk_ovl_layer_check(struct device *dev, unsigned int idx, - struct mtk_plane_state *mtk_state) + const struct mtk_plane_state *mtk_state) { - struct drm_plane_state *state = &mtk_state->base; - unsigned int rotation = 0; + const struct drm_plane_state *state = &mtk_state->base; + unsigned int rotation = drm_rotation_simplify( + state->rotation, + DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
- rotation = drm_rotation_simplify(state->rotation, - DRM_MODE_ROTATE_0 | - DRM_MODE_REFLECT_X | - DRM_MODE_REFLECT_Y); - rotation &= ~DRM_MODE_ROTATE_0; - - /* We can only do reflection, not rotation */ - if ((rotation & DRM_MODE_ROTATE_MASK) != 0) + /* We can only do reflection, not non-zero rotation */ + if (((rotation & ~DRM_MODE_ROTATE_0) & DRM_MODE_ROTATE_MASK) != 0) return -EINVAL;
/* @@ -212,8 +208,6 @@ int mtk_ovl_layer_check(struct device *dev, unsigned int idx, if (state->fb->format->is_yuv && rotation != 0) return -EINVAL;
- state->rotation = rotation; - return 0; }
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index 1b582262b682b..530bdd031933f 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -53,9 +53,8 @@ struct mtk_ddp_comp_funcs { void (*disable_vblank)(struct device *dev); unsigned int (*supported_rotations)(struct device *dev); unsigned int (*layer_nr)(struct device *dev); - int (*layer_check)(struct device *dev, - unsigned int idx, - struct mtk_plane_state *state); + int (*layer_check)(struct device *dev, unsigned int idx, + const struct mtk_plane_state *state); void (*layer_config)(struct device *dev, unsigned int idx, struct mtk_plane_state *state, struct cmdq_pkt *cmdq_pkt);