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devfreq: Migrate to K519 devfreq for tegra_wmark

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Since K519, devfreq takes the priority of devfreq_dev_profile to save
the frequency table information and the number of frequency steps.

Therefore, change the implementation of tegra_wmark devfreq governor to
use devfreq to access the frequency table information and the nubmer of
frequency steps instead of devfreq_dev_profile.

Bug 4288411

Signed-off-by: Johnny Liu <johnliu@nvidia.com>
Change-Id: Ib0affdcc8913642167cd82d45d014c46b51a8c38
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2980425
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Johnny Liu
2023-09-15 14:51:08 +00:00
committed by mobile promotions
parent 4612a9c24d
commit e3ce443fc9
1 changed files with 40 additions and 11 deletions
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51
drivers/devfreq/tegra_wmark.c
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@@ -65,10 +65,17 @@ struct tegra_wmark_data {
static int devfreq_get_freq_index(struct devfreq *df, unsigned long freq)
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 19, 0)
unsigned long *freq_table = df->profile->freq_table;
unsigned int max_state = df->profile->max_state;
#else
unsigned long *freq_table = df->freq_table;
unsigned int max_state = df->max_state;
#endif
int i;
for (i = 0; i < df->profile->max_state; i++) {
if (df->profile->freq_table[i] >= freq)
for (i = 0; i < max_state; i++) {
if (freq_table[i] >= freq)
break;
}
@@ -79,6 +86,13 @@ static int devfreq_tegra_wmark_target_freq(struct devfreq *df, unsigned long *fr
{
struct tegra_wmark_data *govdata = df->governor_data;
struct devfreq_tegra_wmark_data *drvdata = df->data;
#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 19, 0)
unsigned long *freq_table = df->profile->freq_table;
unsigned int max_state = df->profile->max_state;
#else
unsigned long *freq_table = df->freq_table;
unsigned int max_state = df->max_state;
#endif
int target_index = 0;
switch (drvdata->event) {
@@ -86,21 +100,21 @@ static int devfreq_tegra_wmark_target_freq(struct devfreq *df, unsigned long *fr
target_index = max_t(int, 0, govdata->curr_freq_index-1);
break;
case DEVFREQ_TEGRA_AVG_WMARK_ABOVE:
target_index = min_t(int, df->profile->max_state-1, govdata->curr_freq_index+1);
target_index = min_t(int, max_state-1, govdata->curr_freq_index+1);
break;
case DEVFREQ_TEGRA_CONSEC_WMARK_BELOW:
target_index = max_t(int, 0, govdata->curr_freq_index-govdata->down_freq_margin);
break;
case DEVFREQ_TEGRA_CONSEC_WMARK_ABOVE:
target_index = min_t(int,
df->profile->max_state-1,
max_state-1,
govdata->curr_freq_index + govdata->up_freq_margin);
break;
default:
break;
}
*freq = df->profile->freq_table[target_index];
*freq = freq_table[target_index];
return 0;
}
@@ -162,6 +176,11 @@ static void devfreq_update_wmark_threshold(struct devfreq *df)
struct devfreq_tegra_wmark_data *drvdata = df->data;
struct devfreq_tegra_wmark_config wmark_config;
unsigned long curr_freq, prev_freq, min_freq, max_freq;
#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 19, 0)
unsigned long *freq_table = df->profile->freq_table;
#else
unsigned long *freq_table = df->freq_table;
#endif
int err;
devfreq_get_freq_range(df, &min_freq, &max_freq);
@@ -172,7 +191,7 @@ static void devfreq_update_wmark_threshold(struct devfreq *df)
govdata->curr_freq_index = devfreq_get_freq_index(df, df->last_status.current_frequency);
curr_freq = df->profile->freq_table[govdata->curr_freq_index];
curr_freq = freq_table[govdata->curr_freq_index];
if (curr_freq < max_freq) {
wmark_config.avg_upper_wmark = curr_freq / 1000 * govdata->load_target;
@@ -184,9 +203,9 @@ static void devfreq_update_wmark_threshold(struct devfreq *df)
if (curr_freq > min_freq) {
prev_freq = max_t(unsigned long,
df->profile->freq_table[max_t(int,
govdata->curr_freq_index-1,
0)],
freq_table[max_t(int,
govdata->curr_freq_index-1,
0)],
min_freq);
wmark_config.avg_lower_wmark = prev_freq / 1000 * govdata->load_target;
wmark_config.consec_lower_wmark = wmark_config.avg_lower_wmark
@@ -206,13 +225,18 @@ static ssize_t up_freq_margin_store(struct device *dev,
struct devfreq *df = to_devfreq(dev);
struct tegra_wmark_data *govdata;
unsigned int freq_margin;
#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 19, 0)
unsigned int max_state = df->profile->max_state;
#else
unsigned int max_state = df->max_state;
#endif
int ret;
ret = kstrtouint(buf, 0, &freq_margin);
if (ret)
return ret;
freq_margin = min_t(unsigned int, freq_margin, df->profile->max_state);
freq_margin = min_t(unsigned int, freq_margin, max_state);
mutex_lock(&df->lock);
govdata = df->governor_data;
@@ -246,13 +270,18 @@ static ssize_t down_freq_margin_store(struct device *dev,
struct devfreq *df = to_devfreq(dev);
struct tegra_wmark_data *govdata;
unsigned int freq_margin;
#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 19, 0)
unsigned int max_state = df->profile->max_state;
#else
unsigned int max_state = df->max_state;
#endif
int ret;
ret = kstrtouint(buf, 0, &freq_margin);
if (ret)
return ret;
freq_margin = min_t(unsigned int, freq_margin, df->profile->max_state);
freq_margin = min_t(unsigned int, freq_margin, max_state);
mutex_lock(&df->lock);
govdata = df->governor_data;