Merge "msm: kgsl: add api to limit gpu fmax" (1fc26559) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/gpu/msm/kgsl_pwrctrl.c

+35 −0

Original line number	Diff line number	Diff line
		@@ -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

+2 −1

Original line number	Diff line number	Diff line
		/* 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);