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Fri, 24 Oct 2025 08:25:46 -0700 (PDT) Date: Fri, 24 Oct 2025 17:25:43 +0200 From: =?iso-8859-1?Q?Jos=E9_Exp=F3sito?= To: Louis Chauvet Cc: Haneen Mohammed , Simona Vetter , Melissa Wen , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Jonathan Corbet , victoria@system76.com, sebastian.wick@redhat.com, thomas.petazzoni@bootlin.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH 07/22] drm/vkms: Introduce config for plane color range Message-ID: References: <20251018-vkms-all-config-v1-0-a7760755d92d@bootlin.com> <20251018-vkms-all-config-v1-7-a7760755d92d@bootlin.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251018-vkms-all-config-v1-7-a7760755d92d@bootlin.com> On Sat, Oct 18, 2025 at 04:01:07AM +0200, Louis Chauvet wrote: > VKMS driver supports all the color range on planes, but for testing it can > be useful to only advertise few of them. This new configuration interface > will allow configuring the color range per planes. > > Signed-off-by: Louis Chauvet > --- > drivers/gpu/drm/vkms/vkms_config.c | 14 ++++++++++++++ > drivers/gpu/drm/vkms/vkms_config.h | 30 ++++++++++++++++++++++++++++++ > drivers/gpu/drm/vkms/vkms_plane.c | 5 ++--- > 3 files changed, 46 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/vkms/vkms_config.c b/drivers/gpu/drm/vkms/vkms_config.c > index 5353719a476d..8f00ca21ed6e 100644 > --- a/drivers/gpu/drm/vkms/vkms_config.c > +++ b/drivers/gpu/drm/vkms/vkms_config.c > @@ -163,6 +163,13 @@ static bool valid_plane_properties(const struct vkms_config *config) > drm_info(dev, "Configured default color encoding is not supported by the plane\n"); > return false; > } > + > + if ((BIT(vkms_config_plane_get_default_color_range(plane_cfg)) & > + vkms_config_plane_get_supported_color_range(plane_cfg)) != > + BIT(vkms_config_plane_get_default_color_range(plane_cfg))) { > + drm_info(dev, "Configured default color range is not supported by the plane\n"); > + return false; > + } > } > return true; > } > @@ -386,6 +393,10 @@ static int vkms_config_show(struct seq_file *m, void *data) > vkms_config_plane_get_supported_color_encoding(plane_cfg)); > seq_printf(m, "\tdefault color encoding: %d\n", > vkms_config_plane_get_default_color_encoding(plane_cfg)); > + seq_printf(m, "\tsupported color range: 0x%x\n", > + vkms_config_plane_get_supported_color_range(plane_cfg)); > + seq_printf(m, "\tdefault color range: %d\n", > + vkms_config_plane_get_default_color_range(plane_cfg)); > } > > vkms_config_for_each_crtc(vkmsdev->config, crtc_cfg) { > @@ -433,6 +444,9 @@ struct vkms_config_plane *vkms_config_create_plane(struct vkms_config *config) > BIT(DRM_COLOR_YCBCR_BT709) | > BIT(DRM_COLOR_YCBCR_BT2020)); > vkms_config_plane_set_default_color_encoding(plane_cfg, DRM_COLOR_YCBCR_BT601); > + vkms_config_plane_set_supported_color_range(plane_cfg, BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | > + BIT(DRM_COLOR_YCBCR_FULL_RANGE)); > + vkms_config_plane_set_default_color_range(plane_cfg, DRM_COLOR_YCBCR_FULL_RANGE); > > xa_init_flags(&plane_cfg->possible_crtcs, XA_FLAGS_ALLOC); > > diff --git a/drivers/gpu/drm/vkms/vkms_config.h b/drivers/gpu/drm/vkms/vkms_config.h > index 11160c3c13bc..8127e12f00dc 100644 > --- a/drivers/gpu/drm/vkms/vkms_config.h > +++ b/drivers/gpu/drm/vkms/vkms_config.h > @@ -47,6 +47,8 @@ struct vkms_config { > * must be managed by other means. > * @default_color_encoding: Default color encoding that should be used by this plane > * @supported_color_encoding: Color encoding that this plane will support > + * @default_color_range: Default color range that should be used by this plane > + * @supported_color_range: Color range that this plane will support Similar comment about using plural or singular in supported_* properties. > */ > struct vkms_config_plane { > struct list_head link; > @@ -58,6 +60,8 @@ struct vkms_config_plane { > unsigned int supported_rotations; > enum drm_color_encoding default_color_encoding; > unsigned int supported_color_encoding; > + enum drm_color_range default_color_range; > + unsigned int supported_color_range; > struct xarray possible_crtcs; > > /* Internal usage */ > @@ -374,6 +378,32 @@ vkms_config_plane_set_supported_color_encoding(struct vkms_config_plane *plane_c > plane_cfg->supported_color_encoding = supported_color_encoding; > } > > +static inline enum drm_color_range > +vkms_config_plane_get_default_color_range(struct vkms_config_plane *plane_cfg) > +{ > + return plane_cfg->default_color_range; > +} > + > +static inline void > +vkms_config_plane_set_default_color_range(struct vkms_config_plane *plane_cfg, > + enum drm_color_range default_color_range) > +{ > + plane_cfg->default_color_range = default_color_range; > +} > + > +static inline unsigned int > +vkms_config_plane_get_supported_color_range(struct vkms_config_plane *plane_cfg) > +{ > + return plane_cfg->supported_color_range; > +} > + > +static inline void > +vkms_config_plane_set_supported_color_range(struct vkms_config_plane *plane_cfg, > + unsigned int supported_color_range) > +{ > + plane_cfg->supported_color_range = supported_color_range; > +} > + > /** > * vkms_config_plane_set_name() - Set the plane name > * @plane_cfg: Plane to set the name to > diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c > index 5869000415e4..ab719da2ca0b 100644 > --- a/drivers/gpu/drm/vkms/vkms_plane.c > +++ b/drivers/gpu/drm/vkms/vkms_plane.c > @@ -240,10 +240,9 @@ struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev, > > drm_plane_create_color_properties(&plane->base, > vkms_config_plane_get_supported_color_encoding(config), > - BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | > - BIT(DRM_COLOR_YCBCR_FULL_RANGE), > + vkms_config_plane_get_supported_color_range(config), > vkms_config_plane_get_default_color_encoding(config), > - DRM_COLOR_YCBCR_FULL_RANGE); > + vkms_config_plane_get_default_color_range(config)); > > return plane; > } > > -- > 2.51.0 >