233 static bool intel_dp_get_alpm_status(struct intel_dp *intel_dp)  in intel_dp_get_alpm_status()  argument
237 	if (drm_dp_dpcd_readb(&intel_dp->aux, DP_RECEIVER_ALPM_CAP,  in intel_dp_get_alpm_status()
243 static u8 intel_dp_get_sink_sync_latency(struct intel_dp *intel_dp)  in intel_dp_get_sink_sync_latency()  argument
247 	if (drm_dp_dpcd_readb(&intel_dp->aux,  in intel_dp_get_sink_sync_latency()
255 static u16 intel_dp_get_su_x_granulartiy(struct intel_dp *intel_dp)  in intel_dp_get_su_x_granulartiy()  argument
264 	if (!(intel_dp->psr_dpcd[1] & DP_PSR2_SU_GRANULARITY_REQUIRED))  in intel_dp_get_su_x_granulartiy()
267 	r = drm_dp_dpcd_read(&intel_dp->aux, DP_PSR2_SU_X_GRANULARITY, &val, 2);  in intel_dp_get_su_x_granulartiy()
281 void intel_psr_init_dpcd(struct intel_dp *intel_dp)  in intel_psr_init_dpcd()  argument
284 		to_i915(dp_to_dig_port(intel_dp)->base.base.dev);  in intel_psr_init_dpcd()
286 	drm_dp_dpcd_read(&intel_dp->aux, DP_PSR_SUPPORT, intel_dp->psr_dpcd,  in intel_psr_init_dpcd()
287 			 sizeof(intel_dp->psr_dpcd));  in intel_psr_init_dpcd()
289 	if (!intel_dp->psr_dpcd[0])  in intel_psr_init_dpcd()
292 		      intel_dp->psr_dpcd[0]);  in intel_psr_init_dpcd()
294 	if (drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_NO_PSR)) {  in intel_psr_init_dpcd()
299 	if (!(intel_dp->edp_dpcd[1] & DP_EDP_SET_POWER_CAP)) {  in intel_psr_init_dpcd()
306 		intel_dp_get_sink_sync_latency(intel_dp);  in intel_psr_init_dpcd()
309 	dev_priv->psr.dp = intel_dp;  in intel_psr_init_dpcd()
312 	    (intel_dp->psr_dpcd[0] == DP_PSR2_WITH_Y_COORD_IS_SUPPORTED)) {  in intel_psr_init_dpcd()
313 		bool y_req = intel_dp->psr_dpcd[1] &  in intel_psr_init_dpcd()
315 		bool alpm = intel_dp_get_alpm_status(intel_dp);  in intel_psr_init_dpcd()
334 				intel_dp_get_colorimetry_status(intel_dp);  in intel_psr_init_dpcd()
336 				intel_dp_get_su_x_granulartiy(intel_dp);  in intel_psr_init_dpcd()
341 static void intel_psr_setup_vsc(struct intel_dp *intel_dp,  in intel_psr_setup_vsc()  argument
344 	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);  in intel_psr_setup_vsc()
345 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_setup_vsc()
374 static void hsw_psr_setup_aux(struct intel_dp *intel_dp)  in hsw_psr_setup_aux()  argument
376 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in hsw_psr_setup_aux()
396 	aux_clock_divider = intel_dp->get_aux_clock_divider(intel_dp, 0);  in hsw_psr_setup_aux()
399 	aux_ctl = intel_dp->get_aux_send_ctl(intel_dp, sizeof(aux_msg),  in hsw_psr_setup_aux()
407 static void intel_psr_enable_sink(struct intel_dp *intel_dp)  in intel_psr_enable_sink()  argument
409 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_enable_sink()
414 		drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG,  in intel_psr_enable_sink()
425 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, dpcd_val);  in intel_psr_enable_sink()
427 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_SET_POWER, DP_SET_POWER_D0);  in intel_psr_enable_sink()
430 static u32 intel_psr1_get_tp_time(struct intel_dp *intel_dp)  in intel_psr1_get_tp_time()  argument
432 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr1_get_tp_time()
456 	if (intel_dp_source_supports_hbr2(intel_dp) &&  in intel_psr1_get_tp_time()
457 	    drm_dp_tps3_supported(intel_dp->dpcd))  in intel_psr1_get_tp_time()
465 static void hsw_activate_psr1(struct intel_dp *intel_dp)  in hsw_activate_psr1()  argument
467 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in hsw_activate_psr1()
489 	val |= intel_psr1_get_tp_time(intel_dp);  in hsw_activate_psr1()
498 static void hsw_activate_psr2(struct intel_dp *intel_dp)  in hsw_activate_psr2()  argument
500 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in hsw_activate_psr2()
536 static bool intel_psr2_config_valid(struct intel_dp *intel_dp,  in intel_psr2_config_valid()  argument
539 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr2_config_valid()
592 void intel_psr_compute_config(struct intel_dp *intel_dp,  in intel_psr_compute_config()  argument
595 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);  in intel_psr_compute_config()
596 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_compute_config()
604 	if (intel_dp != dev_priv->psr.dp)  in intel_psr_compute_config()
629 	psr_setup_time = drm_dp_psr_setup_time(intel_dp->psr_dpcd);  in intel_psr_compute_config()
632 			      intel_dp->psr_dpcd[1]);  in intel_psr_compute_config()
644 	crtc_state->has_psr2 = intel_psr2_config_valid(intel_dp, crtc_state);  in intel_psr_compute_config()
647 static void intel_psr_activate(struct intel_dp *intel_dp)  in intel_psr_activate()  argument
649 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_activate()
659 		hsw_activate_psr2(intel_dp);  in intel_psr_activate()
661 		hsw_activate_psr1(intel_dp);  in intel_psr_activate()
685 static void intel_psr_enable_source(struct intel_dp *intel_dp,  in intel_psr_enable_source()  argument
688 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_enable_source()
696 		hsw_psr_setup_aux(intel_dp);  in intel_psr_enable_source()
729 	struct intel_dp *intel_dp = dev_priv->psr.dp;  in intel_psr_enable_locked()  local
739 	intel_psr_setup_vsc(intel_dp, crtc_state);  in intel_psr_enable_locked()
740 	intel_psr_enable_sink(intel_dp);  in intel_psr_enable_locked()
741 	intel_psr_enable_source(intel_dp, crtc_state);  in intel_psr_enable_locked()
744 	intel_psr_activate(intel_dp);  in intel_psr_enable_locked()
754 void intel_psr_enable(struct intel_dp *intel_dp,  in intel_psr_enable()  argument
757 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_enable()
803 static void intel_psr_disable_locked(struct intel_dp *intel_dp)  in intel_psr_disable_locked()  argument
805 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_disable_locked()
833 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, 0);  in intel_psr_disable_locked()
845 void intel_psr_disable(struct intel_dp *intel_dp,  in intel_psr_disable()  argument
848 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_disable()
858 	intel_psr_disable_locked(intel_dp);  in intel_psr_disable()
894 void intel_psr_update(struct intel_dp *intel_dp,  in intel_psr_update()  argument
897 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_update()
901 	if (!CAN_PSR(dev_priv) || READ_ONCE(psr->dp) != intel_dp)  in intel_psr_update()
927 		intel_psr_disable_locked(intel_dp);  in intel_psr_update()
1253 void intel_psr_short_pulse(struct intel_dp *intel_dp)  in intel_psr_short_pulse()  argument
1255 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_short_pulse()
1262 	if (!CAN_PSR(dev_priv) || !intel_dp_is_edp(intel_dp))  in intel_psr_short_pulse()
1267 	if (!psr->enabled || psr->dp != intel_dp)  in intel_psr_short_pulse()
1270 	if (drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_STATUS, &val) != 1) {  in intel_psr_short_pulse()
1277 		intel_psr_disable_locked(intel_dp);  in intel_psr_short_pulse()
1281 	if (drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_ERROR_STATUS, &val) != 1) {  in intel_psr_short_pulse()
1297 		intel_psr_disable_locked(intel_dp);  in intel_psr_short_pulse()
1301 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_ERROR_STATUS, val);  in intel_psr_short_pulse()
1306 bool intel_psr_enabled(struct intel_dp *intel_dp)  in intel_psr_enabled()  argument
1308 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);  in intel_psr_enabled()
1311 	if (!CAN_PSR(dev_priv) || !intel_dp_is_edp(intel_dp))  in intel_psr_enabled()
1315 	ret = (dev_priv->psr.dp == intel_dp && dev_priv->psr.enabled);  in intel_psr_enabled()