On Mon, Apr 16, 2018 at 03:16:27PM +0300, Dmitry Osipenko wrote: > Colorkey'ing allows to draw on top of overlapping planes, like for example > on top of a video plane. Older Tegra's have a limited colorkey'ing > capability such that blending features are reduced when colorkey'ing is > enabled. In particular dependent weighting isn't possible, meaning that > cursors plane can't be displayed properly. In most cases it is more useful > to display content on top of video overlay, sacrificing mouse cursor > in the area of three planes intersection with colorkey mismatch. This > patch adds a custom colorkey properties to primary plane and CRTC's of > older Tegra's, allowing userspace like Opentegra Xorg driver to implement > colorkey support for XVideo extension. > > Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx> Since this is your own uapi, where's the userspace per https://dri.freedesktop.org/docs/drm/gpu/drm-uapi.html#open-source-userspace-requirements And why wo we need a tegra-private colorkey property here? I thought other's have been discussing this in the context of other drivers. -Daniel > --- > drivers/gpu/drm/tegra/dc.c | 166 ++++++++++++++++++++++++++++++++++ > drivers/gpu/drm/tegra/dc.h | 18 +++- > drivers/gpu/drm/tegra/plane.c | 40 ++++++++ > drivers/gpu/drm/tegra/plane.h | 9 +- > 4 files changed, 231 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c > index a54eefea2513..b19e954a223f 100644 > --- a/drivers/gpu/drm/tegra/dc.c > +++ b/drivers/gpu/drm/tegra/dc.c > @@ -172,6 +172,24 @@ static void tegra_plane_setup_blending_legacy(struct tegra_plane *plane) > > state = to_tegra_plane_state(plane->base.state); > > + /* > + * Assuming default zPos window order, enable color keying for cases > + * of overlapping with topping windows, excluding overlap with > + * window B. Due to limited HW capabilities, this allows to draw > + * primary plane on top of video overlay in areas where key isn't > + * matching. Though window C will be completely transparent in a > + * region of three windows intersection + key mismatch. > + */ > + if (state->ckey0_enabled) { > + background[0] |= BLEND_COLOR_KEY_0; > + background[2] |= BLEND_COLOR_KEY_0; > + } > + > + if (state->ckey1_enabled) { > + background[0] |= BLEND_COLOR_KEY_1; > + background[2] |= BLEND_COLOR_KEY_1; > + } > + > if (state->opaque) { > /* > * Since custom fix-weight blending isn't utilized and weight > @@ -729,6 +747,35 @@ static unsigned long tegra_plane_get_possible_crtcs(struct drm_device *drm) > return 1 << drm->mode_config.num_crtc; > } > > +static void tegra_plane_create_legacy_properties(struct tegra_plane *plane, > + struct drm_device *drm) > +{ > + plane->props.color_key0 = drm_property_create_bool( > + drm, 0, "color key 0"); > + plane->props.color_key1 = drm_property_create_bool( > + drm, 0, "color key 1"); > + > + if (!plane->props.color_key0 || > + !plane->props.color_key1) > + goto err_cleanup; > + > + drm_object_attach_property(&plane->base.base, plane->props.color_key0, > + false); > + drm_object_attach_property(&plane->base.base, plane->props.color_key1, > + false); > + > + return; > + > +err_cleanup: > + if (plane->props.color_key0) > + drm_property_destroy(drm, plane->props.color_key0); > + > + if (plane->props.color_key1) > + drm_property_destroy(drm, plane->props.color_key1); > + > + dev_err(plane->dc->dev, "failed to create legacy plane properties\n"); > +} > + > static struct drm_plane *tegra_primary_plane_create(struct drm_device *drm, > struct tegra_dc *dc) > { > @@ -764,6 +811,9 @@ static struct drm_plane *tegra_primary_plane_create(struct drm_device *drm, > drm_plane_helper_add(&plane->base, &tegra_plane_helper_funcs); > drm_plane_create_zpos_property(&plane->base, plane->index, 0, 255); > > + if (dc->soc->legacy_blending) > + tegra_plane_create_legacy_properties(plane, drm); > + > return &plane->base; > } > > @@ -1153,6 +1203,8 @@ tegra_crtc_atomic_duplicate_state(struct drm_crtc *crtc) > copy->pclk = state->pclk; > copy->div = state->div; > copy->planes = state->planes; > + copy->ckey0 = state->ckey0; > + copy->ckey1 = state->ckey1; > > return ©->base; > } > @@ -1537,6 +1589,50 @@ static void tegra_dc_disable_vblank(struct drm_crtc *crtc) > tegra_dc_writel(dc, value, DC_CMD_INT_MASK); > } > > +static int tegra_crtc_atomic_set_property(struct drm_crtc *crtc, > + struct drm_crtc_state *state, > + struct drm_property *property, > + uint64_t value) > +{ > + struct tegra_dc_state *tegra_state = to_dc_state(state); > + struct tegra_dc *dc = to_tegra_dc(crtc); > + > + if (property == dc->props.ckey0_lower) > + tegra_state->ckey0.lower = value; > + else if (property == dc->props.ckey0_upper) > + tegra_state->ckey0.upper = value; > + else if (property == dc->props.ckey1_lower) > + tegra_state->ckey1.lower = value; > + else if (property == dc->props.ckey1_upper) > + tegra_state->ckey1.upper = value; > + else > + return -EINVAL; > + > + return 0; > +} > + > +static int tegra_crtc_atomic_get_property(struct drm_crtc *crtc, > + const struct drm_crtc_state *state, > + struct drm_property *property, > + uint64_t *value) > +{ > + struct tegra_dc_state *tegra_state = to_dc_state(state); > + struct tegra_dc *dc = to_tegra_dc(crtc); > + > + if (property == dc->props.ckey0_lower) > + *value = tegra_state->ckey0.lower; > + else if (property == dc->props.ckey0_upper) > + *value = tegra_state->ckey0.upper; > + else if (property == dc->props.ckey1_lower) > + *value = tegra_state->ckey1.lower; > + else if (property == dc->props.ckey1_upper) > + *value = tegra_state->ckey1.upper; > + else > + return -EINVAL; > + > + return 0; > +} > + > static const struct drm_crtc_funcs tegra_crtc_funcs = { > .page_flip = drm_atomic_helper_page_flip, > .set_config = drm_atomic_helper_set_config, > @@ -1549,6 +1645,8 @@ static const struct drm_crtc_funcs tegra_crtc_funcs = { > .get_vblank_counter = tegra_dc_get_vblank_counter, > .enable_vblank = tegra_dc_enable_vblank, > .disable_vblank = tegra_dc_disable_vblank, > + .atomic_set_property = tegra_crtc_atomic_set_property, > + .atomic_get_property = tegra_crtc_atomic_get_property, > }; > > static int tegra_dc_set_timings(struct tegra_dc *dc, > @@ -1883,6 +1981,18 @@ static void tegra_crtc_atomic_flush(struct drm_crtc *crtc, > struct tegra_dc *dc = to_tegra_dc(crtc); > u32 value; > > + if (dc->soc->legacy_blending) { > + tegra_dc_writel(dc, state->ckey0.lower, > + DC_DISP_COLOR_KEY0_LOWER); > + tegra_dc_writel(dc, state->ckey0.upper, > + DC_DISP_COLOR_KEY0_UPPER); > + > + tegra_dc_writel(dc, state->ckey1.lower, > + DC_DISP_COLOR_KEY1_LOWER); > + tegra_dc_writel(dc, state->ckey1.upper, > + DC_DISP_COLOR_KEY1_UPPER); > + } > + > value = state->planes << 8 | GENERAL_UPDATE; > tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL); > value = tegra_dc_readl(dc, DC_CMD_STATE_CONTROL); > @@ -1944,6 +2054,56 @@ static irqreturn_t tegra_dc_irq(int irq, void *data) > return IRQ_HANDLED; > } > > +static int tegra_dc_create_legacy_properties(struct tegra_dc *dc, > + struct drm_device *drm) > +{ > + /* > + * Each color key value is represented in RGB888 format. > + * All planes share the same color key values and free to choose > + * among the ckey0 and ckey1. > + */ > + dc->props.ckey0_lower = drm_property_create_range( > + drm, 0, "color key 0 lower margin", 0, 0xffffff); > + dc->props.ckey0_upper = drm_property_create_range( > + drm, 0, "color key 0 upper margin", 0, 0xffffff); > + dc->props.ckey1_lower = drm_property_create_range( > + drm, 0, "color key 1 lower margin", 0, 0xffffff); > + dc->props.ckey1_upper = drm_property_create_range( > + drm, 0, "color key 1 upper margin", 0, 0xffffff); > + > + if (!dc->props.ckey0_lower || > + !dc->props.ckey0_upper || > + !dc->props.ckey1_lower || > + !dc->props.ckey1_upper) > + goto err_cleanup; > + > + drm_object_attach_property(&dc->base.base, dc->props.ckey0_lower, > + 0x000000); > + drm_object_attach_property(&dc->base.base, dc->props.ckey0_upper, > + 0x000000); > + drm_object_attach_property(&dc->base.base, dc->props.ckey1_lower, > + 0x000000); > + drm_object_attach_property(&dc->base.base, dc->props.ckey1_upper, > + 0x000000); > + > + return 0; > + > +err_cleanup: > + if (dc->props.ckey0_lower) > + drm_property_destroy(drm, dc->props.ckey0_lower); > + > + if (dc->props.ckey0_upper) > + drm_property_destroy(drm, dc->props.ckey0_upper); > + > + if (dc->props.ckey1_lower) > + drm_property_destroy(drm, dc->props.ckey1_lower); > + > + if (dc->props.ckey1_upper) > + drm_property_destroy(drm, dc->props.ckey1_upper); > + > + return -ENOMEM; > +} > + > static int tegra_dc_init(struct host1x_client *client) > { > struct drm_device *drm = dev_get_drvdata(client->parent); > @@ -2031,6 +2191,12 @@ static int tegra_dc_init(struct host1x_client *client) > goto cleanup; > } > > + if (dc->soc->legacy_blending) { > + err = tegra_dc_create_legacy_properties(dc, drm); > + if (err < 0) > + dev_err(dc->dev, "failed to create CRTC properties\n"); > + } > + > return 0; > > cleanup: > diff --git a/drivers/gpu/drm/tegra/dc.h b/drivers/gpu/drm/tegra/dc.h > index 3156006e75c6..3913d047abac 100644 > --- a/drivers/gpu/drm/tegra/dc.h > +++ b/drivers/gpu/drm/tegra/dc.h > @@ -18,6 +18,11 @@ > > struct tegra_output; > > +struct tegra_dc_color_key_state { > + u32 lower; > + u32 upper; > +}; > + > struct tegra_dc_state { > struct drm_crtc_state base; > > @@ -26,9 +31,13 @@ struct tegra_dc_state { > unsigned int div; > > u32 planes; > + > + struct tegra_dc_color_key_state ckey0; > + struct tegra_dc_color_key_state ckey1; > }; > > -static inline struct tegra_dc_state *to_dc_state(struct drm_crtc_state *state) > +static inline struct tegra_dc_state * > +to_dc_state(const struct drm_crtc_state *state) > { > if (state) > return container_of(state, struct tegra_dc_state, base); > @@ -94,6 +103,13 @@ struct tegra_dc { > const struct tegra_dc_soc_info *soc; > > struct iommu_domain *domain; > + > + struct { > + struct drm_property *ckey0_lower; > + struct drm_property *ckey0_upper; > + struct drm_property *ckey1_lower; > + struct drm_property *ckey1_upper; > + } props; > }; > > static inline struct tegra_dc * > diff --git a/drivers/gpu/drm/tegra/plane.c b/drivers/gpu/drm/tegra/plane.c > index 0406c2ef432c..4d794f2b44df 100644 > --- a/drivers/gpu/drm/tegra/plane.c > +++ b/drivers/gpu/drm/tegra/plane.c > @@ -57,6 +57,8 @@ tegra_plane_atomic_duplicate_state(struct drm_plane *plane) > copy->format = state->format; > copy->swap = state->swap; > copy->opaque = state->opaque; > + copy->ckey0_enabled = state->ckey0_enabled; > + copy->ckey1_enabled = state->ckey1_enabled; > > for (i = 0; i < 2; i++) > copy->blending[i] = state->blending[i]; > @@ -86,6 +88,42 @@ static bool tegra_plane_format_mod_supported(struct drm_plane *plane, > return false; > } > > +static int tegra_plane_set_property(struct drm_plane *plane, > + struct drm_plane_state *state, > + struct drm_property *property, > + uint64_t value) > +{ > + struct tegra_plane_state *tegra_state = to_tegra_plane_state(state); > + struct tegra_plane *tegra = to_tegra_plane(plane); > + > + if (property == tegra->props.color_key0) > + tegra_state->ckey0_enabled = value; > + else if (property == tegra->props.color_key1) > + tegra_state->ckey1_enabled = value; > + else > + return -EINVAL; > + > + return 0; > +} > + > +static int tegra_plane_get_property(struct drm_plane *plane, > + const struct drm_plane_state *state, > + struct drm_property *property, > + uint64_t *value) > +{ > + struct tegra_plane_state *tegra_state = to_tegra_plane_state(state); > + struct tegra_plane *tegra = to_tegra_plane(plane); > + > + if (property == tegra->props.color_key0) > + *value = tegra_state->ckey0_enabled; > + else if (property == tegra->props.color_key1) > + *value = tegra_state->ckey1_enabled; > + else > + return -EINVAL; > + > + return 0; > +} > + > const struct drm_plane_funcs tegra_plane_funcs = { > .update_plane = drm_atomic_helper_update_plane, > .disable_plane = drm_atomic_helper_disable_plane, > @@ -94,6 +132,8 @@ const struct drm_plane_funcs tegra_plane_funcs = { > .atomic_duplicate_state = tegra_plane_atomic_duplicate_state, > .atomic_destroy_state = tegra_plane_atomic_destroy_state, > .format_mod_supported = tegra_plane_format_mod_supported, > + .atomic_set_property = tegra_plane_set_property, > + .atomic_get_property = tegra_plane_get_property, > }; > > int tegra_plane_state_add(struct tegra_plane *plane, > diff --git a/drivers/gpu/drm/tegra/plane.h b/drivers/gpu/drm/tegra/plane.h > index 7360ddfafee8..dafecea73b29 100644 > --- a/drivers/gpu/drm/tegra/plane.h > +++ b/drivers/gpu/drm/tegra/plane.h > @@ -19,6 +19,11 @@ struct tegra_plane { > struct tegra_dc *dc; > unsigned int offset; > unsigned int index; > + > + struct { > + struct drm_property *color_key0; > + struct drm_property *color_key1; > + } props; > }; > > struct tegra_cursor { > @@ -49,10 +54,12 @@ struct tegra_plane_state { > /* used for legacy blending support only */ > struct tegra_plane_legacy_blending_state blending[2]; > bool opaque; > + bool ckey0_enabled; > + bool ckey1_enabled; > }; > > static inline struct tegra_plane_state * > -to_tegra_plane_state(struct drm_plane_state *state) > +to_tegra_plane_state(const struct drm_plane_state *state) > { > if (state) > return container_of(state, struct tegra_plane_state, base); > -- > 2.17.0 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
