void sec_gpu_dvfs_handler(int utilization_value)
{
/*utilization_value is zero mean is gpu going to idle*/
if (utilization_value == 0)
return;
sgx_dvfs_level = sec_gpu_dvfs_level_from_clk_get(gpu_clock_get());
/* this check for current clock must be find in dvfs table */
if (sgx_dvfs_level < 0) {
PVR_LOG(("WARN: current clock: %d MHz not found in DVFS table. so set to max clock", gpu_clock_get()));
sec_gpu_vol_clk_change(gdata[BASE_START_LEVEL].clock, gdata[BASE_START_LEVEL].voltage);
return;
}
PVR_DPF((PVR_DBG_MESSAGE, "INFO: AUTO DVFS [%d MHz] <%d, %d>, utilization [%d]",
gpu_clock_get(),
gdata[sgx_dvfs_level].min_threadhold,
gdata[sgx_dvfs_level].max_threadhold, utilization_value));
/* check current level's threadhold value */
if (gdata[sgx_dvfs_level].min_threadhold > utilization_value) {
/* need to down current clock */
sgx_dvfs_level = sec_clock_change_down(sgx_dvfs_level, BASE_DOWN_STEP_LEVEL);
} else if (gdata[sgx_dvfs_level].max_threadhold < utilization_value) {
/* need to up current clock */
sgx_dvfs_level = sec_clock_change_up(sgx_dvfs_level, BASE_UP_STEP_LEVEL);
} else
sgx_dvfs_down_requirement = gdata[sgx_dvfs_level].stay_total_count;
g_g3dfreq = gdata[sgx_dvfs_level].clock;
}
void sec_gpu_dvfs_down_requirement_reset()
{
int level;
level = sec_gpu_dvfs_level_from_clk_get(gpu_clock_get());
sgx_dvfs_down_requirement = gdata[level].stay_total_count;
}
void sec_gpu_dvfs_down_requirement_reset()
{
int level;
level = sec_gpu_dvfs_level_from_clk_get(gpu_clock_get());
if (level >= 0)
sgx_dvfs_down_requirement = g_gpu_dvfs_data[level].stay_total_count;
else
sgx_dvfs_down_requirement = DOWN_REQUIREMENT_THRESHOLD;
}
static int sec_gpu_lock_control_proc(int bmax, long value, size_t count)
{
int lock_level = sec_gpu_dvfs_level_from_clk_get(value);
int retval = -EINVAL;
sgx_dvfs_level = sec_gpu_dvfs_level_from_clk_get(gpu_clock_get());
if (lock_level < 0) { /* unlock something */
if (bmax)
sgx_dvfs_max_lock = custom_max_lock_level = 0;
else
sgx_dvfs_min_lock = custom_min_lock_level = 0;
if (sgx_dvfs_min_lock && (sgx_dvfs_level > custom_min_lock_level)) /* min lock only - likely */
sec_gpu_vol_clk_change(gdata[custom_min_lock_level].clock, gdata[custom_min_lock_level].voltage);
else if (sgx_dvfs_max_lock && (sgx_dvfs_level < custom_max_lock_level)) /* max lock only - unlikely */
sec_gpu_vol_clk_change(gdata[custom_max_lock_level].clock, gdata[custom_max_lock_level].voltage);
if (value == 0)
retval = count;
} else{ /* lock something */
if (bmax) {
sgx_dvfs_max_lock = value;
custom_max_lock_level = lock_level;
} else {
sgx_dvfs_min_lock = value;
custom_min_lock_level = lock_level;
}
if ((sgx_dvfs_max_lock) && (sgx_dvfs_min_lock) && (sgx_dvfs_max_lock < sgx_dvfs_min_lock)){ /* abnormal status */
if (sgx_dvfs_max_lock) /* max lock */
sec_gpu_vol_clk_change(gdata[custom_max_lock_level].clock, gdata[custom_max_lock_level].voltage);
} else { /* normal status */
if ((bmax) && sgx_dvfs_max_lock && (sgx_dvfs_level < custom_max_lock_level)) /* max lock */
sec_gpu_vol_clk_change(gdata[custom_max_lock_level].clock, gdata[custom_max_lock_level].voltage);
if ((!bmax) && sgx_dvfs_min_lock && (sgx_dvfs_level > custom_min_lock_level)) /* min lock */
sec_gpu_vol_clk_change(gdata[custom_min_lock_level].clock, gdata[custom_min_lock_level].voltage);
}
retval = count;
}
return retval;
}
void sec_gpu_dvfs_init(void)
{
struct platform_device *pdev;
int i = 0;
ssize_t total = 0, offset = 0;
memset(gdata, 0x00, sizeof(struct gpu_dvfs_data)*MAX_DVFS_LEVEL);
for (i = 0; i < GPU_DVFS_MAX_LEVEL; i++) {
gdata[i].level = default_dvfs_data[i].level;
gdata[i].clock = default_dvfs_data[i].clock;
gdata[i].voltage = get_match_volt(ID_G3D, default_dvfs_data[i].clock * 1000);
gdata[i].clock_source = default_dvfs_data[i].clock_source;
gdata[i].min_threadhold = default_dvfs_data[i].min_threadhold;
gdata[i].max_threadhold = default_dvfs_data[i].max_threadhold;
gdata[i].quick_down_threadhold = default_dvfs_data[i].quick_down_threadhold;
gdata[i].quick_up_threadhold = default_dvfs_data[i].quick_up_threadhold;
gdata[i].stay_total_count = default_dvfs_data[i].stay_total_count;
gdata[i].mask = setmask(default_dvfs_data[i].level, default_dvfs_data[i].clock);
PVR_LOG(("G3D DVFS Info: Level:%d, Clock:%d MHz, Voltage:%d uV", gdata[i].level, gdata[i].clock, gdata[i].voltage));
}
/* default dvfs level depend on default clock setting */
sgx_dvfs_level = sec_gpu_dvfs_level_from_clk_get(gpu_clock_get());
sgx_dvfs_down_requirement = DOWN_REQUIREMENT_THRESHOLD;
pdev = gpsPVRLDMDev;
/* Required name attribute */
if (device_create_file(&pdev->dev, &dev_attr_sgx_dvfs_min_lock) < 0)
PVR_LOG(("device_create_file: dev_attr_sgx_dvfs_min_lock fail"));
if (device_create_file(&pdev->dev, &dev_attr_sgx_dvfs_max_lock) < 0)
PVR_LOG(("device_create_file: dev_attr_sgx_dvfs_max_lock fail"));
if (device_create_file(&pdev->dev, &dev_attr_sgx_dvfs_volt_table) < 0)
PVR_LOG(("device_create_file: dev_attr_sgx_dvfs_volt_table fail"));
/* Generate DVFS table list*/
for( i = 0; i < GPU_DVFS_MAX_LEVEL ; i++) {
offset = sprintf(sgx_dvfs_table_string+total, "%d\n", gdata[i].clock);
total += offset;
}
sgx_dvfs_table = sgx_dvfs_table_string;
if (device_create_file(&pdev->dev, &dev_attr_sgx_dvfs_table) < 0)
PVR_LOG(("device_create_file: dev_attr_sgx_dvfs_table fail"));
}
static ssize_t volt_table_store(struct device *d, struct device_attribute *a, const char *buf, size_t count)
{
int i, t;
int u[GPU_DVFS_MAX_LEVEL];
if ((t = read_into((int*)&u, GPU_DVFS_MAX_LEVEL, buf, count)) < 0)
return -EINVAL;
if ((t == 2) && (GPU_DVFS_MAX_LEVEL != 2)) {
if ((i = sec_gpu_dvfs_level_from_clk_get(u[0])) < 0)
return -EINVAL;
gdata[i].voltage = sanitize_voltage(u[1]);
} else if (t == GPU_DVFS_MAX_LEVEL) {
for(i = 0; i < GPU_DVFS_MAX_LEVEL; i++)
gdata[i].voltage = sanitize_voltage(u[i]);
} else
return -EINVAL;
return count;
}
void sec_gpu_dvfs_handler(int utilization_value)
{
if (custom_threshold_change)
sec_custom_threshold_set();
/*utilization_value is zero mean is gpu going to idle*/
if (utilization_value == 0)
return;
#ifdef CONFIG_ASV_MARGIN_TEST
sgx_dvfs_custom_clock = set_g3d_freq;
#endif
/* this check for custom dvfs setting - 0:auto, others: custom lock clock*/
if (sgx_dvfs_custom_clock) {
if (sgx_dvfs_custom_clock != gpu_clock_get()) {
sgx_dvfs_level = sec_gpu_dvfs_level_from_clk_get(sgx_dvfs_custom_clock);
/* this check for current clock must be find in dvfs table */
if (sgx_dvfs_level < 0) {
PVR_LOG(("WARN: custom clock: %d MHz not found in DVFS table", sgx_dvfs_custom_clock));
return;
}
if (sgx_dvfs_level < MAX_DVFS_LEVEL && sgx_dvfs_level >= 0) {
sec_gpu_vol_clk_change(g_gpu_dvfs_data[sgx_dvfs_level].clock, g_gpu_dvfs_data[sgx_dvfs_level].voltage);
PVR_LOG(("INFO: CUSTOM DVFS [%d MHz] (%d, %d), utilization [%d] -(%d MHz)",
gpu_clock_get(),
g_gpu_dvfs_data[sgx_dvfs_level].min_threadhold,
g_gpu_dvfs_data[sgx_dvfs_level].max_threadhold,
utilization_value,
sgx_dvfs_custom_clock
));
} else {
PVR_LOG(("INFO: CUSTOM DVFS [%d MHz] invalid clock - restore auto mode", sgx_dvfs_custom_clock));
sgx_dvfs_custom_clock = 0;
}
}
} else {
sgx_dvfs_level = sec_gpu_dvfs_level_from_clk_get(gpu_clock_get());
/* this check for current clock must be find in dvfs table */
if (sgx_dvfs_level < 0) {
PVR_LOG(("WARN: current clock: %d MHz not found in DVFS table. so set to max clock", gpu_clock_get()));
sec_gpu_vol_clk_change(g_gpu_dvfs_data[BASE_START_LEVEL].clock, g_gpu_dvfs_data[BASE_START_LEVEL].voltage);
return;
}
PVR_DPF((PVR_DBG_MESSAGE, "INFO: AUTO DVFS [%d MHz] <%d, %d>, utilization [%d]",
gpu_clock_get(),
g_gpu_dvfs_data[sgx_dvfs_level].min_threadhold,
g_gpu_dvfs_data[sgx_dvfs_level].max_threadhold, utilization_value));
/* check current level's threadhold value */
if (g_gpu_dvfs_data[sgx_dvfs_level].min_threadhold > utilization_value) {
#if defined(USING_BOOST_DOWN_MODE)
/* check need Quick up/down change */
if (g_gpu_dvfs_data[sgx_dvfs_level].quick_down_threadhold >= utilization_value)
sgx_dvfs_level = sec_clock_change_down(sgx_dvfs_level, BASE_QUICK_DOWN_LEVEL);
else
#endif
/* need to down current clock */
sgx_dvfs_level = sec_clock_change_down(sgx_dvfs_level, BASE_DWON_STEP_LEVEL);
} else if (g_gpu_dvfs_data[sgx_dvfs_level].max_threadhold < utilization_value) {
#if defined(USING_BOOST_UP_MODE)
if (g_gpu_dvfs_data[sgx_dvfs_level].quick_up_threadhold <= utilization_value)
sgx_dvfs_level = sec_clock_change_up(sgx_dvfs_level, BASE_QUICK_UP_LEVEL);
else
#endif
/* need to up current clock */
sgx_dvfs_level = sec_clock_change_up(sgx_dvfs_level, BASE_UP_STEP_LEVEL);
} else
sgx_dvfs_down_requirement = g_gpu_dvfs_data[sgx_dvfs_level].stay_total_count;
}
g_g3dfreq = g_gpu_dvfs_data[sgx_dvfs_level].clock;
}
