Merge "msm: kgsl: Use a consistent API to change power state" (8a4a06ec) · Commits · e / devices / android_kernel_sony_msm8994

drivers/gpu/msm/adreno.c

+13 −11

Original line number	Diff line number	Diff line
		@@ -122,9 +122,10 @@ static unsigned int _wake_timeout = 100;

		/*
		* A workqueue callback responsible for actually turning on the GPU after a
		* touch event. kgsl_pwrctrl_wake() is used without any active_count protection
		* to avoid the need to maintain state. Either somebody will start using the
		* GPU or the idle timer will fire and put the GPU back into slumber
		* touch event. kgsl_pwrctrl_change_state(ACTIVE) is used without any
		* active_count protection to avoid the need to maintain state. Either
		* somebody will start using the GPU or the idle timer will fire and put the
		* GPU back into slumber.
		*/
		static void adreno_input_work(struct work_struct *work)
		{
		@@ -140,7 +141,7 @@ static void adreno_input_work(struct work_struct *work)
		* Don't schedule adreno_start in a high priority workqueue, we are
		* already in a workqueue which should be sufficient
		*/
		kgsl_pwrctrl_wake(device, 0);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_ACTIVE);

		/*
		* When waking up from a touch event we want to stay active long enough
		@@ -1700,7 +1701,7 @@ static int adreno_init(struct kgsl_device *device)
		/* Make a high priority workqueue for starting the GPU */
		adreno_wq = alloc_workqueue("adreno", 0, 1);

		kgsl_pwrctrl_set_state(device, KGSL_STATE_INIT);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_INIT);
		/*
		* initialization only needs to be done once initially until
		* device is shutdown
		@@ -1736,7 +1737,7 @@ static int adreno_init(struct kgsl_device *device)
		BUG_ON(1);
		}

		kgsl_pwrctrl_set_state(device, KGSL_STATE_INIT);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_INIT);
		/*
		* Check if firmware supports the sync lock PM4 packets needed
		* for IOMMUv1
		@@ -1814,7 +1815,7 @@ static int _adreno_start(struct adreno_device *adreno_dev)

		kgsl_cffdump_open(device);

		kgsl_pwrctrl_set_state(device, KGSL_STATE_INIT);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_INIT);

		regulator_left_on = (regulator_is_enabled(device->pwrctrl.gpu_reg) \|\|
		(device->pwrctrl.gpu_cx &&
		@@ -1887,7 +1888,7 @@ error_mmu_off:
		error_clk_off:
		kgsl_pwrctrl_disable(device);
		/* set the state back to original state */
		kgsl_pwrctrl_set_state(device, state);
		kgsl_pwrctrl_change_state(device, state);

		return status;
		}
		@@ -2043,7 +2044,7 @@ int adreno_reset(struct kgsl_device *device)
		*/

		if (atomic_read(&device->active_cnt))
		kgsl_pwrctrl_set_state(device, KGSL_STATE_ACTIVE);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_ACTIVE);

		/* Set the page table back to the default page table */
		kgsl_mmu_setstate(&device->mmu, device->mmu.defaultpagetable,
		@@ -2328,7 +2329,7 @@ static ssize_t _ft_hang_intr_status_store(struct device *dev,
		switch (device->state) {
		case KGSL_STATE_NAP:
		case KGSL_STATE_SLEEP:
		kgsl_pwrctrl_wake(device, 0);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_ACTIVE);
		case KGSL_STATE_ACTIVE:
		adreno_dev->gpudev->irq_control(adreno_dev, 1);
		/*
		@@ -2611,7 +2612,8 @@ static int adreno_setproperty(struct kgsl_device_private *dev_priv,

		kgsl_pwrscale_enable(device);
		} else {
		kgsl_pwrctrl_wake(device, 0);
		kgsl_pwrctrl_change_state(device,
		KGSL_STATE_ACTIVE);
		device->pwrctrl.ctrl_flags = KGSL_PWR_ON;
		adreno_dev->fast_hang_detect = 0;
		if (adreno_dev->gpudev->fault_detect_stop)

drivers/gpu/msm/kgsl.c

+7 −66

Original line number	Diff line number	Diff line
		@@ -611,61 +611,9 @@ static int kgsl_suspend_device(struct kgsl_device *device, pm_message_t state)
		KGSL_PWR_WARN(device, "suspend start\n");

		kgsl_mutex_lock(&device->mutex, &device->mutex_owner);
		kgsl_pwrctrl_request_state(device, KGSL_STATE_SUSPEND);

		/* Tell the device to drain the submission queue */
		device->ftbl->drain(device);

		/* Wait for the active count to hit zero */
		status = kgsl_active_count_wait(device, 0);
		if (status)
		goto end;

		/*
		* An interrupt could have snuck in and requested NAP in
		* the meantime, make sure we're on the SUSPEND path.
		*/
		kgsl_pwrctrl_request_state(device, KGSL_STATE_SUSPEND);

		/* Don't let the timer wake us during suspended sleep. */
		del_timer_sync(&device->idle_timer);
		switch (device->state) {
		case KGSL_STATE_INIT:
		break;
		case KGSL_STATE_ACTIVE:
		case KGSL_STATE_NAP:
		case KGSL_STATE_SLEEP:
		/* make sure power is on to stop the device */
		kgsl_pwrctrl_enable(device);
		/* Get the completion ready to be waited upon. */
		INIT_COMPLETION(device->hwaccess_gate);
		device->ftbl->suspend_context(device);
		device->ftbl->stop(device);
		pm_qos_update_request(&device->pwrctrl.pm_qos_req_dma,
		PM_QOS_DEFAULT_VALUE);
		kgsl_pwrctrl_set_state(device, KGSL_STATE_SUSPEND);
		break;
		case KGSL_STATE_SLUMBER:
		INIT_COMPLETION(device->hwaccess_gate);
		kgsl_pwrctrl_set_state(device, KGSL_STATE_SUSPEND);
		break;
		default:
		KGSL_PWR_ERR(device, "suspend fail, device %d\n",
		device->id);
		goto end;
		}
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		kgsl_pwrscale_sleep(device);
		status = 0;

		end:
		if (status) {
		/* On failure, re-resume normal activity */
		if (device->ftbl->resume)
		device->ftbl->resume(device);
		}

		status = kgsl_pwrctrl_change_state(device, KGSL_STATE_SUSPEND);
		kgsl_mutex_unlock(&device->mutex, &device->mutex_owner);

		KGSL_PWR_WARN(device, "suspend end\n");
		return status;
		}
		@@ -678,8 +626,7 @@ static int kgsl_resume_device(struct kgsl_device *device)
		KGSL_PWR_WARN(device, "resume start\n");
		kgsl_mutex_lock(&device->mutex, &device->mutex_owner);
		if (device->state == KGSL_STATE_SUSPEND) {
		kgsl_pwrctrl_set_state(device, KGSL_STATE_SLUMBER);
		complete_all(&device->hwaccess_gate);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_SLUMBER);
		} else if (device->state != KGSL_STATE_INIT) {
		/*
		* This is an error situation,so wait for the device
		@@ -689,16 +636,10 @@ static int kgsl_resume_device(struct kgsl_device *device)
		*/
		if (device->state == KGSL_STATE_ACTIVE)
		device->ftbl->idle(device);
		kgsl_pwrctrl_request_state(device, KGSL_STATE_SLUMBER);
		kgsl_pwrctrl_sleep(device);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_SLUMBER);
		KGSL_PWR_ERR(device,
		"resume invoked without a suspend\n");
		}
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);

		/* Call the GPU specific resume function */
		if (device->ftbl->resume)
		device->ftbl->resume(device);

		kgsl_mutex_unlock(&device->mutex, &device->mutex_owner);
		KGSL_PWR_WARN(device, "resume end\n");
		@@ -915,7 +856,7 @@ static int kgsl_close_device(struct kgsl_device *device)
		/* Force power on to do the stop */
		kgsl_pwrctrl_enable(device);
		result = device->ftbl->stop(device);
		kgsl_pwrctrl_set_state(device, KGSL_STATE_INIT);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_INIT);
		}
		return result;

		@@ -1017,7 +958,7 @@ static int kgsl_open_device(struct kgsl_device *device)
		* we start suspend or FT.
		*/
		complete_all(&device->hwaccess_gate);
		kgsl_pwrctrl_set_state(device, KGSL_STATE_ACTIVE);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_ACTIVE);
		kgsl_active_count_put(device);
		}
		device->open_count++;
		@@ -1089,7 +1030,7 @@ err_stop:
		/* make sure power is on to stop the device */
		kgsl_pwrctrl_enable(device);
		device->ftbl->stop(device);
		kgsl_pwrctrl_set_state(device, KGSL_STATE_INIT);
		kgsl_pwrctrl_change_state(device, KGSL_STATE_INIT);
		atomic_dec(&device->active_cnt);
		}
		err_freedevpriv:

drivers/gpu/msm/kgsl_cffdump.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -628,11 +628,14 @@ int kgsl_cff_dump_enable_set(void *data, u64 val)
		if (!device->cff_dump_enable) {
		device->cff_dump_enable = 1;
		/*
		* put device to slumber so that we ensure that the
		* force device to slumber so that we ensure that the
		* start opcode in CFF is present
		*/
		kgsl_mutex_lock(&device->mutex, &device->mutex_owner);
		ret = kgsl_pwrctrl_slumber(device);
		ret = kgsl_pwrctrl_change_state(device,
		KGSL_STATE_SUSPEND);
		ret \|= kgsl_pwrctrl_change_state(device,
		KGSL_STATE_SLUMBER);
		if (ret)
		device->cff_dump_enable = 0;
		kgsl_mutex_unlock(&device->mutex, &device->mutex_owner);

drivers/gpu/msm/kgsl_pwrctrl.c

+136 −91

Original line number	Diff line number	Diff line
		@@ -82,6 +82,10 @@ static void kgsl_pwrctrl_clk(struct kgsl_device *device, int state,
		int requested_state);
		static void kgsl_pwrctrl_axi(struct kgsl_device *device, int state);
		static void kgsl_pwrctrl_pwrrail(struct kgsl_device *device, int state);
		static void kgsl_pwrctrl_set_state(struct kgsl_device *device,
		unsigned int state);
		static void kgsl_pwrctrl_request_state(struct kgsl_device *device,
		unsigned int state);

		/*
		* Given a requested power level do bounds checking on the constraints and
		@@ -1151,7 +1155,8 @@ void kgsl_idle_check(struct work_struct *work)
		\|\| device->state == KGSL_STATE_NAP) {

		if (!atomic_read(&device->active_cnt))
		kgsl_pwrctrl_sleep(device);
		kgsl_pwrctrl_change_state(device,
		device->requested_state);

		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		if (device->state == KGSL_STATE_ACTIVE)
		@@ -1206,6 +1211,73 @@ void kgsl_pre_hwaccess(struct kgsl_device *device)
		}
		EXPORT_SYMBOL(kgsl_pre_hwaccess);

		/**
		* _init() - Get the GPU ready to start, but don't turn anything on
		* @device - Pointer to the kgsl_device struct
		*/
		static int _init(struct kgsl_device *device)
		{
		kgsl_pwrctrl_set_state(device, KGSL_STATE_INIT);
		return 0;
		}

		/**
		* _wake() - Power up the GPU from a slumber/sleep state
		* @device - Pointer to the kgsl_device struct
		*
		* Resume the GPU from a lower power state to ACTIVE.
		*/
		static int _wake(struct kgsl_device *device)
		{
		int status = 0;

		switch (device->state) {
		case KGSL_STATE_SUSPEND:
		complete_all(&device->hwaccess_gate);
		/* Call the GPU specific resume function */
		device->ftbl->resume(device);
		case KGSL_STATE_SLUMBER:
		status = device->ftbl->start(device,
		device->pwrctrl.superfast);
		device->pwrctrl.superfast = false;

		if (status) {
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		KGSL_DRV_ERR(device, "start failed %d\n", status);
		break;
		}
		/* fall through */
		case KGSL_STATE_SLEEP:
		kgsl_pwrctrl_axi(device, KGSL_PWRFLAGS_ON);
		kgsl_pwrscale_wake(device);
		/* fall through */
		case KGSL_STATE_NAP:
		/* Turn on the core clocks */
		kgsl_pwrctrl_clk(device, KGSL_PWRFLAGS_ON, KGSL_STATE_ACTIVE);
		/* Enable state before turning on irq */
		kgsl_pwrctrl_set_state(device, KGSL_STATE_ACTIVE);
		kgsl_pwrctrl_irq(device, KGSL_PWRFLAGS_ON);
		mod_timer(&device->idle_timer, jiffies +
		device->pwrctrl.interval_timeout);
		pm_qos_update_request(&device->pwrctrl.pm_qos_req_dma,
		device->pwrctrl.pm_qos_latency);
		case KGSL_STATE_ACTIVE:
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		break;
		case KGSL_STATE_INIT:
		kgsl_pwrctrl_set_state(device, KGSL_STATE_ACTIVE);
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		break;
		default:
		KGSL_PWR_WARN(device, "unhandled state %s\n",
		kgsl_pwrstate_to_str(device->state));
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		status = -EINVAL;
		break;
		}
		return status;
		}

		static int
		_nap(struct kgsl_device *device)
		{
		@@ -1294,6 +1366,11 @@ _slumber(struct kgsl_device *device)
		break;
		case KGSL_STATE_SLUMBER:
		break;
		case KGSL_STATE_SUSPEND:
		complete_all(&device->hwaccess_gate);
		device->ftbl->resume(device);
		kgsl_pwrctrl_set_state(device, KGSL_STATE_SLUMBER);
		break;
		default:
		KGSL_PWR_WARN(device, "unhandled state %s\n",
		kgsl_pwrstate_to_str(device->state));
		@@ -1302,123 +1379,91 @@ _slumber(struct kgsl_device *device)
		return 0;
		}

		/******************************************************************/
		/* Caller must hold the device mutex. */
		int kgsl_pwrctrl_sleep(struct kgsl_device *device)
		{
		int status = 0;
		KGSL_PWR_INFO(device, "sleep device %d\n", device->id);

		/* Work through the legal state transitions */
		switch (device->requested_state) {
		case KGSL_STATE_NAP:
		status = _nap(device);
		break;
		case KGSL_STATE_SLEEP:
		status = _sleep(device);
		break;
		case KGSL_STATE_SLUMBER:
		status = _slumber(device);
		break;
		default:
		KGSL_PWR_INFO(device, "bad state request 0x%x\n",
		device->requested_state);
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		status = -EINVAL;
		break;
		}
		return status;
		}
		EXPORT_SYMBOL(kgsl_pwrctrl_sleep);

		/*
		* kgsl_pwrctrl_slumber() - Put device into slumber if it is not in suspend
		* _suspend() - Put device into suspend
		* @device: Device pointer
		*
		* Return 0 on success else error code
		*/
		int kgsl_pwrctrl_slumber(struct kgsl_device *device)
		int _suspend(struct kgsl_device *device)
		{
		int ret = 0;

		if (KGSL_STATE_SLUMBER == device->state \|\|
		KGSL_STATE_SUSPEND == device->state)
		return ret;
		if (KGSL_STATE_SUSPEND == device->requested_state)
		if (KGSL_STATE_SUSPEND == device->state)
		return ret;

		/* drain to prevent from more commands being submitted */
		device->ftbl->drain(device);
		/* wait for active count so device can be put in slumber */
		ret = kgsl_active_count_wait(device, 0);
		if (ret) {
		device->ftbl->resume(device);
		return ret;
		}
		if (ret)
		goto err;

		ret = device->ftbl->idle(device);
		if (ret) {
		device->ftbl->resume(device);
		if (ret)
		goto err;

		ret = _slumber(device);
		if (ret)
		goto err;

		kgsl_pwrctrl_set_state(device, KGSL_STATE_SUSPEND);
		return ret;
		}
		/* resume since we drained earlier */

		err:
		device->ftbl->resume(device);
		kgsl_pwrctrl_request_state(device, KGSL_STATE_SLUMBER);
		ret = kgsl_pwrctrl_sleep(device);
		KGSL_PWR_ERR(device, "device failed to SUSPEND %d\n", ret);
		return ret;
		}
		EXPORT_SYMBOL(kgsl_pwrctrl_slumber);

		/**
		* kgsl_pwrctrl_wake() - Power up the GPU from a slumber/sleep state
		* @device - Pointer to the kgsl_device struct
		* @priority - Boolean flag to indicate that the GPU start should be run in the
		* higher priority thread
		/*
		* kgsl_pwrctrl_change_state() changes the GPU state to the input
		* @device: Pointer to a KGSL device
		* @state: desired KGSL state
		*
		* Resume the GPU from a lower power state to ACTIVE. The caller to this
		* fucntion must host the kgsl_device mutex.
		* Caller must hold the device mutex. If the requested state change
		* is valid, execute it. Otherwise return an error code explaining
		* why the change has not taken place. Also print an error if an
		* unexpected state change failure occurs. For example, a change to
		* NAP may be rejected because the GPU is busy, this is not an error.
		* A change to SUSPEND should go through no matter what, so if it
		* fails an additional error message will be printed to dmesg.
		*/
		int kgsl_pwrctrl_wake(struct kgsl_device *device, int priority)
		int kgsl_pwrctrl_change_state(struct kgsl_device *device, int state)
		{
		int status = 0;
		kgsl_pwrctrl_request_state(device, state);

		kgsl_pwrctrl_request_state(device, KGSL_STATE_ACTIVE);
		switch (device->state) {
		case KGSL_STATE_SLUMBER:
		status = device->ftbl->start(device, priority);

		if (status) {
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		KGSL_DRV_ERR(device, "start failed %d\n", status);
		/* Work through the legal state transitions */
		switch (device->requested_state) {
		case KGSL_STATE_INIT:
		status = _init(device);
		break;
		}
		/* fall through */
		case KGSL_STATE_SLEEP:
		kgsl_pwrctrl_axi(device, KGSL_PWRFLAGS_ON);
		kgsl_pwrscale_wake(device);
		/* fall through */
		case KGSL_STATE_NAP:
		/* Turn on the core clocks */
		kgsl_pwrctrl_clk(device, KGSL_PWRFLAGS_ON, KGSL_STATE_ACTIVE);
		/* Enable state before turning on irq */
		kgsl_pwrctrl_set_state(device, KGSL_STATE_ACTIVE);
		kgsl_pwrctrl_irq(device, KGSL_PWRFLAGS_ON);
		mod_timer(&device->idle_timer, jiffies +
		device->pwrctrl.interval_timeout);
		pm_qos_update_request(&device->pwrctrl.pm_qos_req_dma,
		device->pwrctrl.pm_qos_latency);
		case KGSL_STATE_ACTIVE:
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		status = _wake(device);
		break;
		case KGSL_STATE_NAP:
		status = _nap(device);
		break;
		case KGSL_STATE_SLEEP:
		status = _sleep(device);
		break;
		case KGSL_STATE_SLUMBER:
		status = _slumber(device);
		break;
		case KGSL_STATE_SUSPEND:
		status = _suspend(device);
		break;
		default:
		KGSL_PWR_WARN(device, "unhandled state %s\n",
		kgsl_pwrstate_to_str(device->state));
		KGSL_PWR_INFO(device, "bad state request 0x%x\n",
		device->requested_state);
		kgsl_pwrctrl_request_state(device, KGSL_STATE_NONE);
		status = -EINVAL;
		break;
		}
		return status;
		}
		EXPORT_SYMBOL(kgsl_pwrctrl_wake);
		EXPORT_SYMBOL(kgsl_pwrctrl_change_state);

		void kgsl_pwrctrl_enable(struct kgsl_device *device)
		{
		@@ -1450,21 +1495,21 @@ void kgsl_pwrctrl_disable(struct kgsl_device *device)
		}
		EXPORT_SYMBOL(kgsl_pwrctrl_disable);

		void kgsl_pwrctrl_set_state(struct kgsl_device *device, unsigned int state)
		static void kgsl_pwrctrl_set_state(struct kgsl_device *device,
		unsigned int state)
		{
		trace_kgsl_pwr_set_state(device, state);
		device->state = state;
		device->requested_state = KGSL_STATE_NONE;
		}
		EXPORT_SYMBOL(kgsl_pwrctrl_set_state);

		void kgsl_pwrctrl_request_state(struct kgsl_device *device, unsigned int state)
		static void kgsl_pwrctrl_request_state(struct kgsl_device *device,
		unsigned int state)
		{
		if (state != KGSL_STATE_NONE && state != device->requested_state)
		trace_kgsl_pwr_request_state(device, state);
		device->requested_state = state;
		}
		EXPORT_SYMBOL(kgsl_pwrctrl_request_state);

		const char *kgsl_pwrstate_to_str(unsigned int state)
		{
		@@ -1513,8 +1558,8 @@ int kgsl_active_count_get(struct kgsl_device *device)
		kgsl_mutex_unlock(&device->mutex, &device->mutex_owner);
		wait_for_completion(&device->hwaccess_gate);
		kgsl_mutex_lock(&device->mutex, &device->mutex_owner);

		ret = kgsl_pwrctrl_wake(device, 1);
		device->pwrctrl.superfast = true;
		ret = kgsl_pwrctrl_change_state(device, KGSL_STATE_ACTIVE);
		}
		if (ret == 0)
		atomic_inc(&device->active_cnt);

drivers/gpu/msm/kgsl_pwrctrl.h

+4 −7

Original line number	Diff line number	Diff line
		@@ -79,6 +79,8 @@ struct kgsl_pwr_constraint {
		* @bus_index - default bus index into the bus_ib table
		* @bus_ib - the set of unique ib requests needed for the bus calculation
		* @constraint - currently active power constraint
		* @superfast - Boolean flag to indicate that the GPU start should be run in the
		* higher priority thread
		*/

		struct kgsl_pwrctrl {
		@@ -109,6 +111,7 @@ struct kgsl_pwrctrl {
		unsigned int bus_index[KGSL_MAX_PWRLEVELS];
		uint64_t bus_ib[KGSL_MAX_PWRLEVELS];
		struct kgsl_pwr_constraint constraint;
		bool superfast;
		};

		void kgsl_pwrctrl_irq(struct kgsl_device *device, int state);
		@@ -117,8 +120,6 @@ void kgsl_pwrctrl_close(struct kgsl_device *device);
		void kgsl_timer(unsigned long data);
		void kgsl_idle_check(struct work_struct *work);
		void kgsl_pre_hwaccess(struct kgsl_device *device);
		int kgsl_pwrctrl_sleep(struct kgsl_device *device);
		int kgsl_pwrctrl_wake(struct kgsl_device *device, int priority);
		void kgsl_pwrctrl_pwrlevel_change(struct kgsl_device *device,
		unsigned int level);
		void kgsl_pwrctrl_buslevel_update(struct kgsl_device *device,
		@@ -128,6 +129,7 @@ void kgsl_pwrctrl_uninit_sysfs(struct kgsl_device *device);
		void kgsl_pwrctrl_enable(struct kgsl_device *device);
		void kgsl_pwrctrl_disable(struct kgsl_device *device);
		bool kgsl_pwrctrl_isenabled(struct kgsl_device *device);
		int kgsl_pwrctrl_change_state(struct kgsl_device *device, int state);

		static inline unsigned long kgsl_get_clkrate(struct clk *clk)
		{
		@@ -146,13 +148,8 @@ kgsl_pwrctrl_active_freq(struct kgsl_pwrctrl *pwr)
		return pwr->pwrlevels[pwr->active_pwrlevel].gpu_freq;
		}

		void kgsl_pwrctrl_set_state(struct kgsl_device *device, unsigned int state);
		void kgsl_pwrctrl_request_state(struct kgsl_device *device, unsigned int state);

		int __must_check kgsl_active_count_get(struct kgsl_device *device);
		void kgsl_active_count_put(struct kgsl_device *device);
		int kgsl_active_count_wait(struct kgsl_device *device, int count);
		int kgsl_pwrctrl_slumber(struct kgsl_device *device);
		void kgsl_pwrctrl_busy_time(struct kgsl_device *device, u64 time, u64 busy);

		#endif /* __KGSL_PWRCTRL_H */