drm: Add Client Cap for advance degamma mode
A client cap advance degamma mode is introduced. Minimum requirement for a client to set this capability is if it can use 64 bit LUT values as defined by the structure drm_color_lut_ext on a supported platform. If not set driver will work in legacy mode. v2: Fix typo (Bhanu) Signed-off-by: Borah, Chaitanya Kumar <chaitanya.kumar.borah@intel.com>
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@ -415,10 +415,13 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
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} else if (property == config->prop_vrr_enabled) {
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state->vrr_enabled = val;
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} else if (property == config->degamma_lut_property) {
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ssize_t size = state->advance_degamma_mode_active ?
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sizeof(struct drm_color_lut_ext) :
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sizeof(struct drm_color_lut);
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ret = drm_atomic_replace_property_blob_from_id(dev,
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&state->degamma_lut,
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val,
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-1, sizeof(struct drm_color_lut),
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-1, size,
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&replaced);
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state->color_mgmt_changed |= replaced;
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return ret;
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@ -1060,6 +1063,8 @@ int drm_atomic_set_property(struct drm_atomic_state *state,
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crtc_state->advance_gamma_mode_active =
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state->advance_gamma_mode_active;
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crtc_state->advance_degamma_mode_active =
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state->advance_degamma_mode_active;
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ret = drm_atomic_crtc_set_property(crtc,
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crtc_state, prop, prop_value);
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break;
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@ -1397,6 +1402,7 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
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state->acquire_ctx = &ctx;
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state->allow_modeset = !!(arg->flags & DRM_MODE_ATOMIC_ALLOW_MODESET);
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state->advance_gamma_mode_active = file_priv->advance_gamma_mode_active;
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state->advance_degamma_mode_active = file_priv->advance_degamma_mode_active;
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retry:
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copied_objs = 0;
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@ -367,6 +367,11 @@ drm_setclientcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
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return -EINVAL;
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file_priv->advance_gamma_mode_active = req->value;
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break;
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case DRM_CLIENT_CAP_ADVANCE_DEGAMMA_MODES:
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if (req->value > 1)
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return -EINVAL;
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file_priv->advance_degamma_mode_active = req->value;
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break;
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default:
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return -EINVAL;
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}
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@ -399,6 +399,7 @@ struct drm_atomic_state {
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*/
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bool duplicated : 1;
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bool advance_gamma_mode_active : 1;
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bool advance_degamma_mode_active : 1;
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struct __drm_planes_state *planes;
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struct __drm_crtcs_state *crtcs;
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int num_connector;
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@ -162,6 +162,11 @@ struct drm_crtc_state {
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*/
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bool advance_gamma_mode_active : 1;
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/**
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* This is to indicate advance degamma mode support
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*/
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bool advance_degamma_mode_active : 1;
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/**
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* @no_vblank:
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*
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@ -1045,6 +1050,9 @@ struct drm_crtc {
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/** To handle advance gamma mode support */
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bool advance_gamma_mode_active : 1;
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/** To handle advance degamma mode support */
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bool advance_degamma_mode_active : 1;
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/**
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* @mode:
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*
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@ -214,6 +214,14 @@ struct drm_file {
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*/
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bool advance_gamma_mode_active : 1;
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/**
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* This is to enable advance degamma modes using
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* 64 bit LUT values
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*
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* True if client understands advance degamma
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*/
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bool advance_degamma_mode_active : 1;
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/**
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* @was_master:
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*
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@ -846,6 +846,16 @@ struct drm_get_cap {
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*/
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#define DRM_CLIENT_CAP_ADVANCE_GAMMA_MODES 6
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/**
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* DRM_CLIENT_CAP_ADVANCE_DEGAMMA_MODES
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*
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* Add support for advance degamma mode UAPI
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* If set to 1, DRM will enable advance degamma mode
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* UAPI to process degamma mode with 64 bit LUT
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* values
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*/
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#define DRM_CLIENT_CAP_ADVANCE_DEGAMMA_MODES 7
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/* DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */
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struct drm_set_client_cap {
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__u64 capability;
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