drm/msm/sde: separate the power notify and idle notify events (d5a6a202) · Commits · e / devices / android_kernel_oneplus_sm8150

drivers/gpu/drm/msm/sde/sde_crtc.c

+71 −78

Original line number	Diff line number	Diff line
		@@ -58,12 +58,15 @@ static int sde_crtc_power_interrupt_handler(struct drm_crtc *crtc_drm,
		bool en, struct sde_irq_callback *ad_irq);
		static int sde_crtc_idle_interrupt_handler(struct drm_crtc *crtc_drm,
		bool en, struct sde_irq_callback *idle_irq);
		static int sde_crtc_pm_event_handler(struct drm_crtc *crtc, bool en,
		struct sde_irq_callback *noirq);

		static struct sde_crtc_custom_events custom_events[] = {
		{DRM_EVENT_AD_BACKLIGHT, sde_cp_ad_interrupt},
		{DRM_EVENT_CRTC_POWER, sde_crtc_power_interrupt_handler},
		{DRM_EVENT_IDLE_NOTIFY, sde_crtc_idle_interrupt_handler},
		{DRM_EVENT_HISTOGRAM, sde_cp_hist_interrupt},
		{DRM_EVENT_SDE_POWER, sde_crtc_pm_event_handler},
		};

		/* default input fence timeout, in ms */
		@@ -2273,47 +2276,6 @@ static void _sde_crtc_retire_event(struct drm_crtc *crtc, ktime_t ts)
		SDE_ATRACE_END("signal_retire_fence");
		}

		/* _sde_crtc_idle_notify - signal idle timeout to client */
		static void _sde_crtc_idle_notify(struct sde_crtc *sde_crtc)
		{
		struct drm_crtc *crtc;
		struct drm_event event;
		int ret = 0;

		if (!sde_crtc) {
		SDE_ERROR("invalid sde crtc\n");
		return;
		}

		crtc = &sde_crtc->base;
		event.type = DRM_EVENT_IDLE_NOTIFY;
		event.length = sizeof(u32);
		msm_mode_object_event_notify(&crtc->base, crtc->dev, &event,
		(u8 *)&ret);

		SDE_DEBUG("crtc:%d idle timeout notified\n", crtc->base.id);
		}

		/*
		* sde_crtc_handle_event - crtc frame event handle.
		* This API must manage only non-IRQ context events.
		*/
		static bool _sde_crtc_handle_event(struct sde_crtc *sde_crtc, u32 event)
		{
		bool event_processed = false;

		/**
		* idle events are originated from commit thread and can be processed
		* in same context
		*/
		if (event & SDE_ENCODER_FRAME_EVENT_IDLE) {
		_sde_crtc_idle_notify(sde_crtc);
		event_processed = true;
		}

		return event_processed;
		}

		static void sde_crtc_frame_event_work(struct kthread_work *work)
		{
		struct msm_drm_private *priv;
		@@ -2407,15 +2369,6 @@ static void sde_crtc_frame_event_work(struct kthread_work *work)
		SDE_ATRACE_END("crtc_frame_event");
		}

		/*
		* sde_crtc_frame_event_cb - crtc frame event callback API. CRTC module
		* registers this API to encoder for all frame event callbacks like
		* release_fence, retire_fence, frame_error, frame_done, idle_timeout,
		* etc. Encoder may call different events from different context - IRQ,
		* user thread, commit_thread, etc. Each event should be carefully
		* reviewed and should be processed in proper task context to avoid scheduling
		* delay or properly manage the irq context's bottom half processing.
		*/
		static void sde_crtc_frame_event_cb(void *data, u32 event)
		{
		struct drm_crtc crtc = (struct drm_crtc )data;
		@@ -2424,7 +2377,6 @@ static void sde_crtc_frame_event_cb(void *data, u32 event)
		struct sde_crtc_frame_event *fevent;
		unsigned long flags;
		u32 crtc_id;
		bool event_processed = false;

		if (!crtc \|\| !crtc->dev \|\| !crtc->dev->dev_private) {
		SDE_ERROR("invalid parameters\n");
		@@ -2437,11 +2389,6 @@ static void sde_crtc_frame_event_cb(void *data, u32 event)
		SDE_DEBUG("crtc%d\n", crtc->base.id);
		SDE_EVT32_VERBOSE(DRMID(crtc), event);

		/* try to process the event in caller context */
		event_processed = _sde_crtc_handle_event(sde_crtc, event);
		if (event_processed)
		return;

		spin_lock_irqsave(&sde_crtc->spin_lock, flags);
		fevent = list_first_entry_or_null(&sde_crtc->frame_event_list,
		struct sde_crtc_frame_event, list);
		@@ -2482,24 +2429,6 @@ void sde_crtc_complete_commit(struct drm_crtc *crtc,
		sde_crtc_secure_ctrl(crtc, true);
		}

		/* _sde_crtc_set_idle_timeout - update idle timeout wait duration */
		static void _sde_crtc_set_idle_timeout(struct drm_crtc *crtc, u64 val)
		{
		struct drm_encoder *encoder;

		if (!crtc) {
		SDE_ERROR("invalid crtc\n");
		return;
		}

		drm_for_each_encoder(encoder, crtc->dev) {
		if (encoder->crtc != crtc)
		continue;

		sde_encoder_set_idle_timeout(encoder, (u32) val);
		}
		}

		/**
		* _sde_crtc_set_input_fence_timeout - update ns version of in fence timeout
		* @cstate: Pointer to sde crtc state
		@@ -3155,6 +3084,12 @@ static void sde_crtc_atomic_begin(struct drm_crtc *crtc,
		_sde_crtc_blend_setup(crtc, true);
		_sde_crtc_dest_scaler_setup(crtc);

		/* cancel the idle notify delayed work */
		if (sde_encoder_check_mode(sde_crtc->mixers[0].encoder,
		MSM_DISPLAY_CAP_VID_MODE) &&
		kthread_cancel_delayed_work_sync(&sde_crtc->idle_notify_work))
		SDE_DEBUG("idle notify work cancelled\n");

		/*
		* Since CP properties use AXI buffer to program the
		* HW, check if context bank is in attached
		@@ -3186,6 +3121,7 @@ static void sde_crtc_atomic_flush(struct drm_crtc *crtc,
		struct msm_drm_thread *event_thread;
		unsigned long flags;
		struct sde_crtc_state *cstate;
		int idle_time = 0;

		if (!crtc \|\| !crtc->dev \|\| !crtc->dev->dev_private) {
		SDE_ERROR("invalid crtc\n");
		@@ -3211,6 +3147,7 @@ static void sde_crtc_atomic_flush(struct drm_crtc *crtc,
		}

		event_thread = &priv->event_thread[crtc->index];
		idle_time = sde_crtc_get_property(cstate, CRTC_PROP_IDLE_TIMEOUT);

		if (sde_crtc->event) {
		SDE_DEBUG("already received sde_crtc->event\n");
		@@ -3241,6 +3178,15 @@ static void sde_crtc_atomic_flush(struct drm_crtc *crtc,
		/* wait for acquire fences before anything else is done */
		_sde_crtc_wait_for_fences(crtc);

		/* schedule the idle notify delayed work */
		if (idle_time && sde_encoder_check_mode(sde_crtc->mixers[0].encoder,
		MSM_DISPLAY_CAP_VID_MODE)) {
		kthread_queue_delayed_work(&event_thread->worker,
		&sde_crtc->idle_notify_work,
		msecs_to_jiffies(idle_time));
		SDE_DEBUG("schedule idle notify work in %dms\n", idle_time);
		}

		if (!cstate->rsc_update) {
		drm_for_each_encoder(encoder, dev) {
		if (encoder->crtc != crtc)
		@@ -3938,10 +3884,11 @@ static void sde_crtc_handle_power_event(u32 event_type, void *arg)
		struct drm_plane *plane;
		struct drm_encoder *encoder;
		struct sde_crtc_mixer *m;
		u32 i, misr_status;
		u32 i, misr_status, power_on;
		unsigned long flags;
		struct sde_crtc_irq_info *node = NULL;
		int ret = 0;
		struct drm_event event;

		if (!crtc) {
		SDE_ERROR("invalid crtc\n");
		@@ -3977,6 +3924,12 @@ static void sde_crtc_handle_power_event(u32 event_type, void *arg)

		sde_cp_crtc_post_ipc(crtc);

		event.type = DRM_EVENT_SDE_POWER;
		event.length = sizeof(power_on);
		power_on = 1;
		msm_mode_object_event_notify(&crtc->base, crtc->dev, &event,
		(u8 *)&power_on);

		for (i = 0; i < sde_crtc->num_mixers; ++i) {
		m = &sde_crtc->mixers[i];
		if (!m->hw_lm \|\| !m->hw_lm->ops.setup_misr \|\|
		@@ -4045,6 +3998,11 @@ static void sde_crtc_handle_power_event(u32 event_type, void *arg)
		if (cstate->num_ds_enabled)
		sde_crtc->ds_reconfig = true;

		event.type = DRM_EVENT_SDE_POWER;
		event.length = sizeof(power_on);
		power_on = 0;
		msm_mode_object_event_notify(&crtc->base, crtc->dev, &event,
		(u8 *)&power_on);
		break;
		default:
		SDE_DEBUG("event:%d not handled\n", event_type);
		@@ -4873,7 +4831,7 @@ static void sde_crtc_install_properties(struct drm_crtc *crtc,
		CRTC_PROP_ROT_CLK);

		msm_property_install_range(&sde_crtc->property_info,
		"idle_time", IDLE_TIMEOUT, 0, U64_MAX, 0,
		"idle_time", 0, 0, U64_MAX, 0,
		CRTC_PROP_IDLE_TIMEOUT);

		msm_property_install_blob(&sde_crtc->property_info, "capabilities",
		@@ -5062,8 +5020,6 @@ static int sde_crtc_atomic_set_property(struct drm_crtc *crtc,
		cstate->bw_control = true;
		cstate->bw_split_vote = true;
		break;
		case CRTC_PROP_IDLE_TIMEOUT:
		_sde_crtc_set_idle_timeout(crtc, val);
		default:
		/* nothing to do */
		break;
		@@ -5665,6 +5621,30 @@ static int _sde_crtc_init_events(struct sde_crtc *sde_crtc)
		return rc;
		}

		/*
		* __sde_crtc_idle_notify_work - signal idle timeout to user space
		*/
		static void __sde_crtc_idle_notify_work(struct kthread_work *work)
		{
		struct sde_crtc *sde_crtc = container_of(work, struct sde_crtc,
		idle_notify_work.work);
		struct drm_crtc *crtc;
		struct drm_event event;
		int ret = 0;

		if (!sde_crtc) {
		SDE_ERROR("invalid sde crtc\n");
		} else {
		crtc = &sde_crtc->base;
		event.type = DRM_EVENT_IDLE_NOTIFY;
		event.length = sizeof(u32);
		msm_mode_object_event_notify(&crtc->base, crtc->dev,
		&event, (u8 *)&ret);

		SDE_DEBUG("crtc[%d]: idle timeout notified\n", crtc->base.id);
		}
		}

		/* initialize crtc */
		struct drm_crtc sde_crtc_init(struct drm_device dev, struct drm_plane *plane)
		{
		@@ -5736,6 +5716,9 @@ struct drm_crtc sde_crtc_init(struct drm_device dev, struct drm_plane *plane)
		sde_cp_crtc_init(crtc);
		sde_cp_crtc_install_properties(crtc);

		kthread_init_delayed_work(&sde_crtc->idle_notify_work,
		__sde_crtc_idle_notify_work);

		SDE_DEBUG("%s: successfully initialized crtc\n", sde_crtc->name);
		return crtc;
		}
		@@ -5877,6 +5860,16 @@ static int sde_crtc_power_interrupt_handler(struct drm_crtc *crtc_drm,
		return 0;
		}

		static int sde_crtc_pm_event_handler(struct drm_crtc *crtc, bool en,
		struct sde_irq_callback *noirq)
		{
		/*
		* IRQ object noirq is not being used here since there is
		* no crtc irq from pm event.
		*/
		return 0;
		}

		static int sde_crtc_idle_interrupt_handler(struct drm_crtc *crtc_drm,
		bool en, struct sde_irq_callback *irq)
		{

drivers/gpu/drm/msm/sde/sde_crtc.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -212,6 +212,7 @@ struct sde_crtc_event {
		* @misr_data : store misr data before turning off the clocks.
		* @sbuf_flush_mask: flush mask for inline rotator
		* @sbuf_flush_mask_old: inline rotator flush mask for previous commit
		* @idle_notify_work: delayed worker to notify idle timeout to user space
		* @power_event : registered power event handle
		* @cur_perf : current performance committed to clock/bandwidth driver
		* @rp_lock : serialization lock for resource pool
		@@ -276,6 +277,7 @@ struct sde_crtc {

		u32 sbuf_flush_mask;
		u32 sbuf_flush_mask_old;
		struct kthread_delayed_work idle_notify_work;

		struct sde_power_event *power_event;

drivers/gpu/drm/msm/sde/sde_encoder.c

+10 −28

Original line number	Diff line number	Diff line
		@@ -92,7 +92,7 @@
		* This event happens at INTERRUPT level.
		* Event signals the end of the data transfer after the PP FRAME_DONE
		* event. At the end of this event, a delayed work is scheduled to go to
		* IDLE_PC state after IDLE_TIMEOUT time.
		* IDLE_PC state after IDLE_POWERCOLLAPSE_DURATION time.
		* @SDE_ENC_RC_EVENT_PRE_STOP:
		* This event happens at NORMAL priority.
		* This event, when received during the ON state, set RSC to IDLE, and
		@@ -118,9 +118,9 @@
		* with new vtotal.
		* @SDE_ENC_RC_EVENT_ENTER_IDLE:
		* This event happens at NORMAL priority from a work item.
		* Event signals that there were no frame updates for IDLE_TIMEOUT time.
		* This would disable MDP/DSI core clocks and request RSC with IDLE state
		* and change the resource state to IDLE.
		* Event signals that there were no frame updates for
		* IDLE_POWERCOLLAPSE_DURATION time. This would disable MDP/DSI core clocks
		* and request RSC with IDLE state and change the resource state to IDLE.
		*/
		enum sde_enc_rc_events {
		SDE_ENC_RC_EVENT_KICKOFF = 1,
		@@ -199,7 +199,6 @@ enum sde_enc_rc_states {
		* @rsc_config: rsc configuration for display vtotal, fps, etc.
		* @cur_conn_roi: current connector roi
		* @prv_conn_roi: previous connector roi to optimize if unchanged
		* @idle_timeout: idle timeout duration in milliseconds
		*/
		struct sde_encoder_virt {
		struct drm_encoder base;
		@@ -244,8 +243,6 @@ struct sde_encoder_virt {
		struct sde_rsc_cmd_config rsc_config;
		struct sde_rect cur_conn_roi;
		struct sde_rect prv_conn_roi;

		u32 idle_timeout;
		};

		#define to_sde_encoder_virt(x) container_of(x, struct sde_encoder_virt, base)
		@@ -315,17 +312,6 @@ static bool _sde_encoder_is_dsc_enabled(struct drm_encoder *drm_enc)
		return (comp_info->comp_type == MSM_DISPLAY_COMPRESSION_DSC);
		}

		void sde_encoder_set_idle_timeout(struct drm_encoder *drm_enc, u32 idle_timeout)
		{
		struct sde_encoder_virt *sde_enc;

		if (!drm_enc)
		return;

		sde_enc = to_sde_encoder_virt(drm_enc);
		sde_enc->idle_timeout = idle_timeout;
		}

		bool sde_encoder_is_dsc_merge(struct drm_encoder *drm_enc)
		{
		enum sde_rm_topology_name topology;
		@@ -1717,7 +1703,7 @@ static int sde_encoder_resource_control(struct drm_encoder *drm_enc,
		u32 sw_event)
		{
		bool autorefresh_enabled = false;
		unsigned int lp, idle_timeout;
		unsigned int lp, idle_pc_duration;
		struct sde_encoder_virt *sde_enc;
		struct msm_drm_private *priv;
		struct msm_drm_thread *disp_thread;
		@@ -1841,18 +1827,18 @@ static int sde_encoder_resource_control(struct drm_encoder *drm_enc,
		lp = SDE_MODE_DPMS_ON;

		if (lp == SDE_MODE_DPMS_LP2)
		idle_timeout = IDLE_SHORT_TIMEOUT;
		idle_pc_duration = IDLE_SHORT_TIMEOUT;
		else
		idle_timeout = sde_enc->idle_timeout;
		idle_pc_duration = IDLE_POWERCOLLAPSE_DURATION;

		if (!autorefresh_enabled && idle_timeout)
		if (!autorefresh_enabled)
		kthread_queue_delayed_work(
		&disp_thread->worker,
		&sde_enc->delayed_off_work,
		msecs_to_jiffies(idle_timeout));
		msecs_to_jiffies(idle_pc_duration));
		SDE_EVT32(DRMID(drm_enc), sw_event, sde_enc->rc_state,
		autorefresh_enabled,
		idle_timeout, SDE_EVTLOG_FUNC_CASE2);
		idle_pc_duration, SDE_EVTLOG_FUNC_CASE2);
		SDE_DEBUG_ENC(sde_enc, "sw_event:%d, work scheduled\n",
		sw_event);
		break;
		@@ -2588,9 +2574,6 @@ static void sde_encoder_off_work(struct kthread_work *work)

		sde_encoder_resource_control(&sde_enc->base,
		SDE_ENC_RC_EVENT_ENTER_IDLE);

		sde_encoder_frame_done_callback(&sde_enc->base, NULL,
		SDE_ENCODER_FRAME_EVENT_IDLE);
		}

		/**
		@@ -3991,7 +3974,6 @@ struct drm_encoder *sde_encoder_init(
		mutex_init(&sde_enc->rc_lock);
		kthread_init_delayed_work(&sde_enc->delayed_off_work,
		sde_encoder_off_work);
		sde_enc->idle_timeout = IDLE_TIMEOUT;
		sde_enc->vblank_enabled = false;

		kthread_init_work(&sde_enc->vsync_event_work,

drivers/gpu/drm/msm/sde/sde_encoder.h

+1 −11

Original line number	Diff line number	Diff line
		@@ -29,9 +29,8 @@
		#define SDE_ENCODER_FRAME_EVENT_PANEL_DEAD BIT(2)
		#define SDE_ENCODER_FRAME_EVENT_SIGNAL_RELEASE_FENCE BIT(3)
		#define SDE_ENCODER_FRAME_EVENT_SIGNAL_RETIRE_FENCE BIT(4)
		#define SDE_ENCODER_FRAME_EVENT_IDLE BIT(5)

		#define IDLE_TIMEOUT (66 - 16/2)
		#define IDLE_POWERCOLLAPSE_DURATION (66 - 16/2)

		/**
		* Encoder functions and data types
		@@ -213,13 +212,4 @@ void sde_encoder_destroy(struct drm_encoder *drm_enc);
		*/
		void sde_encoder_prepare_commit(struct drm_encoder *drm_enc);

		/**
		* sde_encoder_set_idle_timeout - set the idle timeout for video
		* and command mode encoders.
		* @drm_enc: Pointer to previously created drm encoder structure
		* @idle_timeout: idle timeout duration in milliseconds
		*/
		void sde_encoder_set_idle_timeout(struct drm_encoder *drm_enc,
		u32 idle_timeout);

		#endif /* __SDE_ENCODER_H__ */