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Merge "msm: kgsl: add api to limit gpu fmax"

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qctecmdr 2020-05-12 23:07:05 -07:00 committed by Gerrit - the friendly Code Review server
commit 0888310a19
2 changed files with 37 additions and 1 deletions
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35
drivers/gpu/msm/kgsl_pwrctrl.c
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@ -3283,6 +3283,41 @@ int kgsl_pwr_limits_set_freq(void *limit_ptr, unsigned int freq)
}
EXPORT_SYMBOL(kgsl_pwr_limits_set_freq);
/**
* kgsl_pwr_limits_set_gpu_fmax() - Set the requested limit for the
* client, if requested freq value is larger than fmax supported
* function returns with success.
* @limit_ptr: Client handle
* @freq: Client requested frequency
*
* Set the new limit for the client and adjust the clocks
*/
int kgsl_pwr_limits_set_gpu_fmax(void *limit_ptr, unsigned int freq)
{
struct kgsl_pwrctrl *pwr;
struct kgsl_pwr_limit *limit = limit_ptr;
int level;
if (IS_ERR_OR_NULL(limit))
return -EINVAL;
pwr = &limit->device->pwrctrl;
/*
* When requested frequency is greater than fmax,
* requested limit is implicit, return success here.
*/
if (freq >= pwr->pwrlevels[0].gpu_freq)
return 0;
level = _get_nearest_pwrlevel(pwr, freq);
if (level < 0)
return -EINVAL;
_update_limits(limit, KGSL_PWR_SET_LIMIT, level);
return 0;
}
EXPORT_SYMBOL(kgsl_pwr_limits_set_gpu_fmax);
/**
* kgsl_pwr_limits_set_default() - Set the default thermal limit for the client
* @limit_ptr: Client handle

3
include/linux/msm_kgsl.h
View file

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
* Copyright (c) 2018, 2020 The Linux Foundation. All rights reserved.
*/
#ifndef _MSM_KGSL_H
#define _MSM_KGSL_H
@ -11,6 +11,7 @@
void *kgsl_pwr_limits_add(u32 id);
void kgsl_pwr_limits_del(void *limit);
int kgsl_pwr_limits_set_freq(void *limit, unsigned int freq);
int kgsl_pwr_limits_set_gpu_fmax(void *limit, unsigned int freq);
void kgsl_pwr_limits_set_default(void *limit);
unsigned int kgsl_pwr_limits_get_freq(u32 id);