Aquaris-M10-4G/drivers/misc/mediatek/gpu/ged/src/ged_profile_dvfs.c

/*
 * Copyright (C) 2015 MediaTek Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 */

#include <linux/slab.h>
#include <linux/sched.h>
#include "ged_base.h"
#include "ged_log.h"
#include "ged_profile_dvfs.h"

static GED_LOG_BUF_HANDLE ghLogBuf = 0;
static struct mutex gsMutex;
static GED_BOOL gbAllowRecord = GED_FALSE;

GED_ERROR ged_profile_dvfs_init(void)
{
    mutex_init(&gsMutex);

#if 0
    ghLogBuf = ged_log_buf_alloc(320, 64 * 320, GED_LOG_BUF_TYPE_QUEUEBUFFER_AUTO_INCREASE, NULL, "profile_dvfs");
#endif

    return GED_OK;
}

GED_ERROR ged_profile_dvfs_enable(void)
{
    GED_ERROR ret;

    mutex_lock(&gsMutex);

    if (0 == ghLogBuf)
    {
        ghLogBuf = ged_log_buf_alloc(320, 64 * 320, GED_LOG_BUF_TYPE_QUEUEBUFFER_AUTO_INCREASE, NULL, "profile_dvfs");
    }

    ret = ghLogBuf ? GED_OK : GED_ERROR_FAIL;

    mutex_unlock(&gsMutex);

    return ret;
}

void ged_profile_dvfs_disable(void)
{
    mutex_lock(&gsMutex);

    if (0 != ghLogBuf)
    {
        ged_log_buf_free(ghLogBuf);
        ghLogBuf = 0;
    }

    mutex_unlock(&gsMutex);
}

void ged_profile_dvfs_start(void)
{
    gbAllowRecord = GED_TRUE;
}

void ged_profile_dvfs_stop(void)
{
    gbAllowRecord = GED_FALSE;
}

void ged_profile_dvfs_ignore_lines(int i32LineCount)
{
    mutex_lock(&gsMutex);

    if (ghLogBuf)
    {
        ged_log_buf_ignore_lines(ghLogBuf, i32LineCount);
    }

    mutex_unlock(&gsMutex);
}

void ged_profile_dvfs_exit(void)
{
    ged_profile_dvfs_disable();
}

void ged_profile_dvfs_record_freq_volt(unsigned int ui32Frequency, unsigned int ui32Voltage)
{
    mutex_lock(&gsMutex);

    if (ghLogBuf && gbAllowRecord)
    {
    	/* copy & modify from ./kernel/printk.c */
    	unsigned long long t;
    	unsigned long nanosec_rem;

    	t = ged_get_time();
    	nanosec_rem = do_div(t, 1000000000) / 1000;

        ged_log_buf_print(ghLogBuf, "%5lu.%06lu,freq_volt,%u,%u", (unsigned long) t, nanosec_rem, ui32Frequency, ui32Voltage);
    }
    mutex_unlock(&gsMutex);
}

void ged_profile_dvfs_record_temp(int i32Temp)
{
    mutex_lock(&gsMutex);

    if (ghLogBuf && gbAllowRecord)
    {
    	/* copy & modify from ./kernel/printk.c */
    	unsigned long long t;
    	unsigned long nanosec_rem;

    	t = ged_get_time();
    	nanosec_rem = do_div(t, 1000000000) / 1000;

        ged_log_buf_print(ghLogBuf, "%5lu.%06lu,temp,%d", (unsigned long) t, nanosec_rem, i32Temp);
    }
    mutex_unlock(&gsMutex);

}

void ged_profile_dvfs_record_thermal_limit(unsigned int ui32FreqLimit)
{
    mutex_lock(&gsMutex);

    if (ghLogBuf && gbAllowRecord)
    {
    	/* copy & modify from ./kernel/printk.c */
    	unsigned long long t;
    	unsigned long nanosec_rem;

    	t = ged_get_time();
    	nanosec_rem = do_div(t, 1000000000) / 1000;

        ged_log_buf_print(ghLogBuf, "%5lu.%06lu,thermal_limit,%u", (unsigned long) t, nanosec_rem, ui32FreqLimit);
    }
    mutex_unlock(&gsMutex);
}

void ged_profile_dvfs_record_gpu_loading(unsigned int ui32GpuLoading)
{
    mutex_lock(&gsMutex);

    if (ghLogBuf && gbAllowRecord)
    {
    	/* copy & modify from ./kernel/printk.c */
    	unsigned long long t;
    	unsigned long nanosec_rem;

    	t = ged_get_time();
    	nanosec_rem = do_div(t, 1000000000) / 1000;

        ged_log_buf_print(ghLogBuf, "%5lu.%06lu,gpu_load,%u", (unsigned long) t, nanosec_rem, ui32GpuLoading);
    }

    mutex_unlock(&gsMutex);
}

void ged_profile_dvfs_record_clock_on(void)
{
    mutex_lock(&gsMutex);

    if (ghLogBuf && gbAllowRecord)
    {
    	/* copy & modify from ./kernel/printk.c */
    	unsigned long long t;
    	unsigned long nanosec_rem;

    	t = ged_get_time();
    	nanosec_rem = do_div(t, 1000000000) / 1000;

        ged_log_buf_print(ghLogBuf, "%5lu.%06lu,gpu_clock,1", (unsigned long) t, nanosec_rem);
    }

    mutex_unlock(&gsMutex);
}

void ged_profile_dvfs_record_clock_off(void)
{
    mutex_lock(&gsMutex);

    if (ghLogBuf && gbAllowRecord)
    {
    	/* copy & modify from ./kernel/printk.c */
    	unsigned long long t;
    	unsigned long nanosec_rem;

    	t = ged_get_time();
    	nanosec_rem = do_div(t, 1000000000) / 1000;

        ged_log_buf_print(ghLogBuf, "%5lu.%06lu,gpu_clock,0", (unsigned long) t, nanosec_rem);
    }

    mutex_unlock(&gsMutex);
}

void ged_profile_dvfs_record_SW_vsync(unsigned long ulTimeStamp, long lPhase, unsigned long ul3DFenceDoneTime)
{
    mutex_lock(&gsMutex);

    if (ghLogBuf && gbAllowRecord)
    {
    	/* copy & modify from ./kernel/printk.c */
    	unsigned long long t;
    	unsigned long nanosec_rem;

    	t = ged_get_time();
    	nanosec_rem = do_div(t, 1000000000) / 1000;

        ged_log_buf_print(ghLogBuf, "%5lu.%06lu,SW_vsync,%lu,%ld,%lu", (unsigned long) t, nanosec_rem, ulTimeStamp, lPhase, ul3DFenceDoneTime);
    }

    mutex_unlock(&gsMutex);
}

void ged_profile_dvfs_record_policy(
    long lFreq, unsigned int ui32GpuLoading, long lPreT1, unsigned long ulPreFreq, long t0, unsigned long ulCurFreq, long t1, long lPhase)
{
    mutex_lock(&gsMutex);

    if (ghLogBuf && gbAllowRecord)
    {
    	/* copy & modify from ./kernel/printk.c */
    	unsigned long long t;
    	unsigned long nanosec_rem;

    	t = ged_get_time();
    	nanosec_rem = do_div(t, 1000000000) / 1000;

        ged_log_buf_print(ghLogBuf, "%5lu.%06lu,Freq=%ld,Load=%u,PreT1=%ld,PreF=%lu,t0=%ld,CurF=%lu,t1=%ld,phase=%ld", (unsigned long) t, nanosec_rem, lFreq, ui32GpuLoading, lPreT1, ulPreFreq, t0, ulCurFreq, t1, lPhase);
    }

    mutex_unlock(&gsMutex);

}