[v6 05/13] drm: Implement HDR output metadata set and get property handling

[Brian Starkey]

Hi,

On Wed, Mar 20, 2019 at 04:18:18PM +0530, Uma Shankar wrote:
> This patch implements get() and set() functions for HDR output
> metadata property.The blob data is received from userspace and
> saved in connector state, the same is returned as blob in get
> property call to userspace.
> 
> v2: Rebase and added Ville's POC changes
> 
> v3: No Change
> 
> v4: Addressed Shashank's review comments
> 
> Signed-off-by: Uma Shankar <uma.shankar at intel.com>

This looks like a candidate to be squashed into patch 1.

> ---
>  drivers/gpu/drm/drm_atomic.c      |  2 ++
>  drivers/gpu/drm/drm_atomic_uapi.c | 13 +++++++++++++
>  2 files changed, 15 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index 5eb4013..8b9c126 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -881,6 +881,8 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
>  
>  	drm_printf(p, "connector[%u]: %s\n", connector->base.id, connector->name);
>  	drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)");
> +	drm_printf(p, "\thdr_metadata_changed=%d\n",
> +		   state->hdr_metadata_changed);
>  
>  	if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
>  		if (state->writeback_job && state->writeback_job->fb)
> diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
> index 4eb81f1..18c8b81f 100644
> --- a/drivers/gpu/drm/drm_atomic_uapi.c
> +++ b/drivers/gpu/drm/drm_atomic_uapi.c
> @@ -686,6 +686,8 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
>  {
>  	struct drm_device *dev = connector->dev;
>  	struct drm_mode_config *config = &dev->mode_config;
> +	bool replaced = false;
> +	int ret;
>  
>  	if (property == config->prop_crtc_id) {
>  		struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val);
> @@ -734,6 +736,14 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
>  		 */
>  		if (state->link_status != DRM_LINK_STATUS_GOOD)
>  			state->link_status = val;
> +	} else if (property == config->hdr_output_metadata_property) {
> +		ret = drm_atomic_replace_property_blob_from_id(dev,
> +				&state->hdr_output_metadata_blob_ptr,
> +				val,
> +				-1, sizeof(struct hdr_static_metadata),
> +				&replaced);
> +		state->hdr_metadata_changed |= replaced;

I've said the same about other flags: Do we really need them?
It seems easy enough to just compare the blob pointers or their IDs

Thanks,
-Brian

> +		return ret;
>  	} else if (property == config->aspect_ratio_property) {
>  		state->picture_aspect_ratio = val;
>  	} else if (property == config->content_type_property) {
> @@ -820,6 +830,9 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
>  		*val = state->colorspace;
>  	} else if (property == connector->scaling_mode_property) {
>  		*val = state->scaling_mode;
> +	} else if (property == config->hdr_output_metadata_property) {
> +		*val = (state->hdr_output_metadata_blob_ptr) ?
> +			state->hdr_output_metadata_blob_ptr->base.id : 0;
>  	} else if (property == connector->content_protection_property) {
>  		*val = state->content_protection;
>  	} else if (property == config->writeback_fb_id_property) {
> -- 
> 1.9.1
>