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Message-ID: <20211026011154.GE2515@art_vandelay> References: <20211022165409.178281-1-markyacoub@chromium.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20211022165409.178281-1-markyacoub@chromium.org> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211025_181158_722198_A92D4CA9 X-CRM114-Status: GOOD ( 28.89 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Oct 22, 2021 at 12:54:02PM -0400, Mark Yacoub wrote: > From: Mark Yacoub > > [Why] > The Rotation prob is a bitmask value. It must always have a valid value. nit: s/prob/prop/ > A default NO rotation is equal to 1 not 0. > > [How] > 1. At the reset hook, call __drm_atomic_helper_plane_reset which is > called at the initialization of the plane and sets the default value of > all planes to DRM_MODE_ROTATE_0 which is equal to 1. > 2. At the ovl layer check, do no overwrite the state->rotation value 0 > if DRM_MODE_ROTATE_0 is set. We should not change the value that the > userspace has set, especially if it's an unsupported value. nit: I would probably split these into 2 patches since they're related but different Sean > > Tested on Jacuzzi(MTK). > Fixes IGT@kms_properties@plane-properties-{legacy,atomic} and > IGT@kms_properties@get_properties-sanity-{atomic,non-atomic} > > Signed-off-by: Mark Yacoub > --- > 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 ++--- > drivers/gpu/drm/mediatek/mtk_drm_plane.c | 3 ++- > 4 files changed, 12 insertions(+), 18 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); > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c > index e6dcb34d30522..accd26481b9fb 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c > @@ -44,9 +44,10 @@ static void mtk_plane_reset(struct drm_plane *plane) > state = kzalloc(sizeof(*state), GFP_KERNEL); > if (!state) > return; > - plane->state = &state->base; > } > > + __drm_atomic_helper_plane_reset(plane, &state->base); > + > state->base.plane = plane; > state->pending.format = DRM_FORMAT_RGB565; > } > -- > 2.33.0.1079.g6e70778dc9-goog > -- Sean Paul, Software Engineer, Google / Chromium OS _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel