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Commit ce313f04 authored by qctecmdr Service's avatar qctecmdr Service Committed by Gerrit - the friendly Code Review server
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Merge "msm: kgsl: Keep dispatcher halted during SUSPEND state"

parents a1426752 a6e44af5

drivers/gpu/msm/adreno.c

+2 −0
Original line number Diff line number Diff line
@@ -3549,6 +3549,8 @@ static const struct kgsl_functable adreno_functable = { 
	.clk_set_options = adreno_clk_set_options,

	.gpu_model = adreno_gpu_model,

	.stop_fault_timer = adreno_dispatcher_stop_fault_timer,

	.dispatcher_halt = adreno_dispatcher_halt,

	.dispatcher_unhalt = adreno_dispatcher_unhalt,

};



static struct platform_driver adreno_platform_driver = {

drivers/gpu/msm/adreno_dispatch.c

+17 −0
Original line number Diff line number Diff line
@@ -2857,6 +2857,16 @@ int adreno_dispatcher_init(struct adreno_device *adreno_dev) 
	return ret;

}



void adreno_dispatcher_halt(struct kgsl_device *device)

{

	adreno_get_gpu_halt(ADRENO_DEVICE(device));

}



void adreno_dispatcher_unhalt(struct kgsl_device *device)

{

	adreno_put_gpu_halt(ADRENO_DEVICE(device));

}



/*

 * adreno_dispatcher_idle() - Wait for dispatcher to idle

 * @adreno_dev: Adreno device whose dispatcher needs to idle
@@ -2887,6 +2897,13 @@ int adreno_dispatcher_idle(struct adreno_device *adreno_dev) 


	mutex_unlock(&device->mutex);



	/*

	 * Flush the worker to make sure all executing

	 * or pending dispatcher works on worker are

	 * finished

	 */

	kthread_flush_worker(&kgsl_driver.worker);



	ret = wait_for_completion_timeout(&dispatcher->idle_gate,

			msecs_to_jiffies(ADRENO_IDLE_TIMEOUT));

	if (ret == 0) {

drivers/gpu/msm/adreno_dispatch.h

+3 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2008-2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2008-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -103,6 +103,8 @@ enum adreno_dispatcher_flags { 
};



void adreno_dispatcher_start(struct kgsl_device *device);

void adreno_dispatcher_halt(struct kgsl_device *device);

void adreno_dispatcher_unhalt(struct kgsl_device *device);

int adreno_dispatcher_init(struct adreno_device *adreno_dev);

void adreno_dispatcher_close(struct adreno_device *adreno_dev);

int adreno_dispatcher_idle(struct adreno_device *adreno_dev);

drivers/gpu/msm/kgsl.c

+3 −0
Original line number Diff line number Diff line
@@ -761,6 +761,8 @@ static int kgsl_suspend_device(struct kgsl_device *device, pm_message_t state) 


	mutex_lock(&device->mutex);

	status = kgsl_pwrctrl_change_state(device, KGSL_STATE_SUSPEND);

	if (status == 0)

		device->ftbl->dispatcher_halt(device);

	mutex_unlock(&device->mutex);



	KGSL_PWR_WARN(device, "suspend end\n");
@@ -775,6 +777,7 @@ static int kgsl_resume_device(struct kgsl_device *device) 
	KGSL_PWR_WARN(device, "resume start\n");

	mutex_lock(&device->mutex);

	if (device->state == KGSL_STATE_SUSPEND) {

		device->ftbl->dispatcher_unhalt(device);

		kgsl_pwrctrl_change_state(device, KGSL_STATE_SLUMBER);

	} else if (device->state != KGSL_STATE_INIT) {

		/*

drivers/gpu/msm/kgsl_device.h

+2 −0
Original line number Diff line number Diff line
@@ -190,6 +190,8 @@ struct kgsl_functable { 
	void (*gpu_model)(struct kgsl_device *device, char *str,

		size_t bufsz);

	void (*stop_fault_timer)(struct kgsl_device *device);

	void (*dispatcher_halt)(struct kgsl_device *device);

	void (*dispatcher_unhalt)(struct kgsl_device *device);

};



struct kgsl_ioctl {