在 2025/3/27 7:46, Alex Hung 写道:
From: Harry Wentland <harry.wentl...@amd.com> With the introduction of the pre-blending color pipeline we can no longer have color operations that don't have a clear position in the color pipeline. We deprecate all existing plane properties. For upstream drivers those are: - COLOR_ENCODING - COLOR_RANGE Drivers are expected to ignore these properties when programming the HW. DRM clients that don't register with
don't? Seems conflict with change note below.
DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE will not be allowed to set the COLOR_ENCODING and COLOR_RANGE properties. Setting of the COLOR_PIPELINE plane property or drm_colorop properties is only allowed for userspace that sets this client cap. Signed-off-by: Alex Hung <alex.h...@amd.com> Signed-off-by: Harry Wentland <harry.wentl...@amd.com> --- v8: - Disallow setting of COLOR_RANGE and COLOR_ENCODING when DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE is set v5: - Fix kernel docs v4: - Don't block setting of COLOR_RANGE and COLOR_ENCODING when client cap is set drivers/gpu/drm/drm_atomic_uapi.c | 23 ++++++++++++++++++++++- drivers/gpu/drm/drm_ioctl.c | 7 +++++++ include/drm/drm_file.h | 7 +++++++ include/uapi/drm/drm.h | 15 +++++++++++++++ 4 files changed, 51 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 5738b1c18755..e0b4b122ef6b 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -567,10 +567,26 @@ static int drm_atomic_plane_set_property(struct drm_plane *plane, } else if (property == plane->zpos_property) { state->zpos = val; } else if (property == plane->color_encoding_property) { + if (file_priv->plane_color_pipeline) { + drm_dbg_atomic(dev, + "Setting COLOR_ENCODING plane property not permitted with DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE client cap\n"); + return -EINVAL; + } state->color_encoding = val; } else if (property == plane->color_range_property) { + if (file_priv->plane_color_pipeline) { + drm_dbg_atomic(dev, + "Setting COLOR_RANGE plane property not permitted with DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE client cap\n"); + return -EINVAL; + } state->color_range = val; } else if (property == plane->color_pipeline_property) { + if (!file_priv->plane_color_pipeline) { + drm_dbg_atomic(dev, + "Setting COLOR_PIPELINE plane property not permitted unless DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE is set\n"); + return -EINVAL; + } + /* find DRM colorop object */ struct drm_colorop *colorop = NULL;@@ -1197,6 +1213,12 @@ int drm_atomic_set_property(struct drm_atomic_state *state,break; } case DRM_MODE_OBJECT_COLOROP: { + if (!file_priv->plane_color_pipeline) { + drm_dbg_atomic(prop->dev, + "[OBJECT:%d] is a colorop but DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE not set\n", + obj->id); + ret = -EINVAL; + } struct drm_colorop *colorop = obj_to_colorop(obj); struct drm_colorop_state *colorop_state;@@ -1209,7 +1231,6 @@ int drm_atomic_set_property(struct drm_atomic_state *state,ret = drm_atomic_colorop_set_property(colorop, colorop_state, file_priv, prop, prop_value); - break; } default: diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index f593dc569d31..5c89c586da7c 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -373,6 +373,13 @@ drm_setclientcap(struct drm_device *dev, void *data, struct drm_file *file_priv) return -EINVAL; file_priv->supports_virtualized_cursor_plane = req->value; break; + case DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE: + if (!file_priv->atomic) + return -EINVAL; + if (req->value > 1) + return -EINVAL; + file_priv->plane_color_pipeline = req->value; + break; default: return -EINVAL; } diff --git a/include/drm/drm_file.h b/include/drm/drm_file.h index 94d365b22505..86929ca667aa 100644 --- a/include/drm/drm_file.h +++ b/include/drm/drm_file.h @@ -206,6 +206,13 @@ struct drm_file { */ bool writeback_connectors;+ /**+ * @plane_color_pipeline: + * + * True if client understands plane color pipelines + */ + bool plane_color_pipeline; + /** * @was_master: * diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 7fba37b94401..3d12fbab066f 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -875,6 +875,21 @@ struct drm_get_cap { */ #define DRM_CLIENT_CAP_CURSOR_PLANE_HOTSPOT 6+/**+ * DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE + * + * If set to 1 the DRM core will allow setting the COLOR_PIPELINE + * property on a &drm_plane, as well as drm_colorop properties. + * + * Setting of these plane properties will be rejected when this client + * cap is set: + * - COLOR_ENCODING + * - COLOR_RANGE + * + * The client must enable &DRM_CLIENT_CAP_ATOMIC first. + */ +#define DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE 7 + /* DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */ struct drm_set_client_cap { __u64 capability;
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