On Mon, Apr 16, 2018 at 03:16:28PM +0300, Dmitry Osipenko wrote: > This new property allows userspace to apply custom color conversion > coefficients per plane, making possible to utilize display controller > for color adjustments of a video overlay. > > Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx> Same here, this needs corresponding userspace: https://dri.freedesktop.org/docs/drm/gpu/drm-uapi.html#open-source-userspace-requirements And again there's even more people who discussed extending the existing color management support for crtcs to planes. I think we definitely want a standard interface for this, not each driver doing their own thing. -Daniel > --- > drivers/gpu/drm/tegra/dc.c | 86 +++++++++++++++++++++++++++++++---- > drivers/gpu/drm/tegra/dc.h | 11 +++++ > drivers/gpu/drm/tegra/plane.c | 35 ++++++++++++++ > drivers/gpu/drm/tegra/plane.h | 5 ++ > include/uapi/drm/tegra_drm.h | 11 +++++ > 5 files changed, 139 insertions(+), 9 deletions(-) > > diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c > index b19e954a223f..24a1317871d4 100644 > --- a/drivers/gpu/drm/tegra/dc.c > +++ b/drivers/gpu/drm/tegra/dc.c > @@ -435,15 +435,15 @@ static void tegra_dc_setup_window(struct tegra_plane *plane, > value = WIN_ENABLE; > > if (yuv) { > - /* setup default colorspace conversion coefficients */ > - tegra_plane_writel(plane, 0x00f0, DC_WIN_CSC_YOF); > - tegra_plane_writel(plane, 0x012a, DC_WIN_CSC_KYRGB); > - tegra_plane_writel(plane, 0x0000, DC_WIN_CSC_KUR); > - tegra_plane_writel(plane, 0x0198, DC_WIN_CSC_KVR); > - tegra_plane_writel(plane, 0x039b, DC_WIN_CSC_KUG); > - tegra_plane_writel(plane, 0x032f, DC_WIN_CSC_KVG); > - tegra_plane_writel(plane, 0x0204, DC_WIN_CSC_KUB); > - tegra_plane_writel(plane, 0x0000, DC_WIN_CSC_KVB); > + /* setup colorspace conversion coefficients */ > + tegra_plane_writel(plane, window->csc.yof, DC_WIN_CSC_YOF); > + tegra_plane_writel(plane, window->csc.kyrgb, DC_WIN_CSC_KYRGB); > + tegra_plane_writel(plane, window->csc.kur, DC_WIN_CSC_KUR); > + tegra_plane_writel(plane, window->csc.kvr, DC_WIN_CSC_KVR); > + tegra_plane_writel(plane, window->csc.kug, DC_WIN_CSC_KUG); > + tegra_plane_writel(plane, window->csc.kvg, DC_WIN_CSC_KVG); > + tegra_plane_writel(plane, window->csc.kub, DC_WIN_CSC_KUB); > + tegra_plane_writel(plane, window->csc.kvb, DC_WIN_CSC_KVB); > > value |= CSC_ENABLE; > } else if (window->bits_per_pixel < 24) { > @@ -624,6 +624,7 @@ static void tegra_plane_atomic_update(struct drm_plane *plane, > struct drm_framebuffer *fb = plane->state->fb; > struct tegra_plane *p = to_tegra_plane(plane); > struct tegra_dc_window window; > + const struct drm_tegra_plane_csc_blob *csc; > unsigned int i; > > /* rien ne va plus */ > @@ -665,6 +666,28 @@ static void tegra_plane_atomic_update(struct drm_plane *plane, > window.stride[i] = fb->pitches[i]; > } > > + if (state->csc_blob) { > + csc = state->csc_blob->data; > + > + window.csc.yof = csc->yof; > + window.csc.kyrgb = csc->kyrgb; > + window.csc.kur = csc->kur; > + window.csc.kvr = csc->kvr; > + window.csc.kug = csc->kug; > + window.csc.kvg = csc->kvg; > + window.csc.kub = csc->kub; > + window.csc.kvb = csc->kvb; > + } else { > + window.csc.yof = 0x00f0; > + window.csc.kyrgb = 0x012a; > + window.csc.kur = 0x0000; > + window.csc.kvr = 0x0198; > + window.csc.kug = 0x039b; > + window.csc.kvg = 0x032f; > + window.csc.kub = 0x0204; > + window.csc.kvb = 0x0000; > + } > + > tegra_dc_setup_window(p, &window); > } > > @@ -776,6 +799,42 @@ static void tegra_plane_create_legacy_properties(struct tegra_plane *plane, > dev_err(plane->dc->dev, "failed to create legacy plane properties\n"); > } > > +static void tegra_plane_create_csc_property(struct tegra_plane *plane) > +{ > + /* set default colorspace conversion coefficients to ITU-R BT.601 */ > + struct drm_tegra_plane_csc_blob csc_bt601 = { > + .yof = 0x00f0, > + .kyrgb = 0x012a, > + .kur = 0x0000, > + .kvr = 0x0198, > + .kug = 0x039b, > + .kvg = 0x032f, > + .kub = 0x0204, > + .kvb = 0x0000, > + }; > + struct drm_property_blob *blob; > + > + blob = drm_property_create_blob(plane->base.dev, sizeof(csc_bt601), > + &csc_bt601); > + if (!blob) { > + dev_err(plane->dc->dev, "failed to create CSC BLOB\n"); > + return; > + } > + > + plane->props.csc_blob = drm_property_create( > + plane->base.dev, DRM_MODE_PROP_BLOB, "YUV to RGB CSC", 0); > + > + if (!plane->props.csc_blob) { > + dev_err(plane->dc->dev, "failed to create CSC property\n"); > + drm_property_blob_put(blob); > + return; > + } > + > + drm_object_attach_property(&plane->base.base, plane->props.csc_blob, 0); > + > + plane->csc_default = blob; > +} > + > static struct drm_plane *tegra_primary_plane_create(struct drm_device *drm, > struct tegra_dc *dc) > { > @@ -814,6 +873,9 @@ static struct drm_plane *tegra_primary_plane_create(struct drm_device *drm, > if (dc->soc->legacy_blending) > tegra_plane_create_legacy_properties(plane, drm); > > + if (dc->soc->has_win_a_csc) > + tegra_plane_create_csc_property(plane); > + > return &plane->base; > } > > @@ -1092,6 +1154,7 @@ static struct drm_plane *tegra_dc_overlay_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); > + tegra_plane_create_csc_property(plane); > > return &plane->base; > } > @@ -2269,6 +2332,7 @@ static const struct tegra_dc_soc_info tegra20_dc_soc_info = { > .num_overlay_formats = ARRAY_SIZE(tegra20_overlay_formats), > .overlay_formats = tegra20_overlay_formats, > .modifiers = tegra20_modifiers, > + .has_win_a_csc = false, > }; > > static const struct tegra_dc_soc_info tegra30_dc_soc_info = { > @@ -2287,6 +2351,7 @@ static const struct tegra_dc_soc_info tegra30_dc_soc_info = { > .num_overlay_formats = ARRAY_SIZE(tegra20_overlay_formats), > .overlay_formats = tegra20_overlay_formats, > .modifiers = tegra20_modifiers, > + .has_win_a_csc = false, > }; > > static const struct tegra_dc_soc_info tegra114_dc_soc_info = { > @@ -2305,6 +2370,7 @@ static const struct tegra_dc_soc_info tegra114_dc_soc_info = { > .num_overlay_formats = ARRAY_SIZE(tegra114_overlay_formats), > .overlay_formats = tegra114_overlay_formats, > .modifiers = tegra20_modifiers, > + .has_win_a_csc = true, > }; > > static const struct tegra_dc_soc_info tegra124_dc_soc_info = { > @@ -2323,6 +2389,7 @@ static const struct tegra_dc_soc_info tegra124_dc_soc_info = { > .num_overlay_formats = ARRAY_SIZE(tegra124_overlay_formats), > .overlay_formats = tegra124_overlay_formats, > .modifiers = tegra124_modifiers, > + .has_win_a_csc = true, > }; > > static const struct tegra_dc_soc_info tegra210_dc_soc_info = { > @@ -2341,6 +2408,7 @@ static const struct tegra_dc_soc_info tegra210_dc_soc_info = { > .num_overlay_formats = ARRAY_SIZE(tegra114_overlay_formats), > .overlay_formats = tegra114_overlay_formats, > .modifiers = tegra124_modifiers, > + .has_win_a_csc = true, > }; > > static const struct tegra_windowgroup_soc tegra186_dc_wgrps[] = { > diff --git a/drivers/gpu/drm/tegra/dc.h b/drivers/gpu/drm/tegra/dc.h > index 3913d047abac..23439eaaa4de 100644 > --- a/drivers/gpu/drm/tegra/dc.h > +++ b/drivers/gpu/drm/tegra/dc.h > @@ -77,6 +77,7 @@ struct tegra_dc_soc_info { > const u32 *overlay_formats; > unsigned int num_overlay_formats; > const u64 *modifiers; > + bool has_win_a_csc; > }; > > struct tegra_dc { > @@ -152,6 +153,16 @@ struct tegra_dc_window { > unsigned int w; > unsigned int h; > } dst; > + struct { > + unsigned int yof; > + unsigned int kyrgb; > + unsigned int kur; > + unsigned int kvr; > + unsigned int kug; > + unsigned int kvg; > + unsigned int kub; > + unsigned int kvb; > + } csc; > unsigned int bits_per_pixel; > unsigned int stride[2]; > unsigned long base[3]; > diff --git a/drivers/gpu/drm/tegra/plane.c b/drivers/gpu/drm/tegra/plane.c > index 4d794f2b44df..c5733c5a66e9 100644 > --- a/drivers/gpu/drm/tegra/plane.c > +++ b/drivers/gpu/drm/tegra/plane.c > @@ -17,6 +17,9 @@ static void tegra_plane_destroy(struct drm_plane *plane) > { > struct tegra_plane *p = to_tegra_plane(plane); > > + if (p->csc_default) > + drm_property_blob_put(p->csc_default); > + > drm_plane_cleanup(plane); > kfree(p); > } > @@ -38,6 +41,9 @@ static void tegra_plane_reset(struct drm_plane *plane) > plane->state->plane = plane; > plane->state->zpos = p->index; > plane->state->normalized_zpos = p->index; > + > + if (p->csc_default) > + state->csc_blob = drm_property_blob_get(p->csc_default); > } > } > > @@ -63,12 +69,22 @@ tegra_plane_atomic_duplicate_state(struct drm_plane *plane) > for (i = 0; i < 2; i++) > copy->blending[i] = state->blending[i]; > > + if (state->csc_blob) > + copy->csc_blob = drm_property_blob_get(state->csc_blob); > + else > + copy->csc_blob = NULL; > + > return ©->base; > } > > static void tegra_plane_atomic_destroy_state(struct drm_plane *plane, > struct drm_plane_state *state) > { > + struct tegra_plane_state *tegra = to_tegra_plane_state(state); > + > + if (tegra->csc_blob) > + drm_property_blob_put(tegra->csc_blob); > + > __drm_atomic_helper_plane_destroy_state(state); > kfree(state); > } > @@ -95,6 +111,23 @@ static int tegra_plane_set_property(struct drm_plane *plane, > { > struct tegra_plane_state *tegra_state = to_tegra_plane_state(state); > struct tegra_plane *tegra = to_tegra_plane(plane); > + struct drm_property_blob *blob; > + > + if (property == tegra->props.csc_blob) { > + blob = drm_property_lookup_blob(plane->dev, value); > + if (!blob) > + return -EINVAL; > + > + if (blob->length != sizeof(struct drm_tegra_plane_csc_blob)) { > + drm_property_blob_put(blob); > + return -EINVAL; > + } > + > + drm_property_blob_put(tegra_state->csc_blob); > + tegra_state->csc_blob = blob; > + > + return 0; > + } > > if (property == tegra->props.color_key0) > tegra_state->ckey0_enabled = value; > @@ -118,6 +151,8 @@ static int tegra_plane_get_property(struct drm_plane *plane, > *value = tegra_state->ckey0_enabled; > else if (property == tegra->props.color_key1) > *value = tegra_state->ckey1_enabled; > + else if (property == tegra->props.csc_blob) > + *value = tegra_state->csc_blob->base.id; > else > return -EINVAL; > > diff --git a/drivers/gpu/drm/tegra/plane.h b/drivers/gpu/drm/tegra/plane.h > index dafecea73b29..dc9efa7be502 100644 > --- a/drivers/gpu/drm/tegra/plane.h > +++ b/drivers/gpu/drm/tegra/plane.h > @@ -23,7 +23,10 @@ struct tegra_plane { > struct { > struct drm_property *color_key0; > struct drm_property *color_key1; > + struct drm_property *csc_blob; > } props; > + > + struct drm_property_blob *csc_default; > }; > > struct tegra_cursor { > @@ -51,6 +54,8 @@ struct tegra_plane_state { > u32 format; > u32 swap; > > + struct drm_property_blob *csc_blob; > + > /* used for legacy blending support only */ > struct tegra_plane_legacy_blending_state blending[2]; > bool opaque; > diff --git a/include/uapi/drm/tegra_drm.h b/include/uapi/drm/tegra_drm.h > index a5da44209a68..a3054ea7b222 100644 > --- a/include/uapi/drm/tegra_drm.h > +++ b/include/uapi/drm/tegra_drm.h > @@ -29,6 +29,17 @@ > extern "C" { > #endif > > +struct drm_tegra_plane_csc_blob { > + __u32 yof; > + __u32 kyrgb; > + __u32 kur; > + __u32 kvr; > + __u32 kug; > + __u32 kvg; > + __u32 kub; > + __u32 kvb; > +}; > + > #define DRM_TEGRA_GEM_CREATE_TILED (1 << 0) > #define DRM_TEGRA_GEM_CREATE_BOTTOM_UP (1 << 1) > #define DRM_TEGRA_GEM_CREATE_SCATTERED (1 << 2) > -- > 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
