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Merge branches 'pm-opp' and 'pm-tools'

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* pm-opp:
  PM / OPP: Update performance state when freq == old_freq
  OPP: Fix handling of multiple power domains

* pm-tools:
  tools/power/cpupower: Display boost frequency separately
This commit is contained in:
Rafael J. Wysocki 2019-03-14 10:53:22 +01:00
commit b444e1aa3e
5 changed files with 65 additions and 30 deletions
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2
drivers/opp/core.c
View File

@ -760,7 +760,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
old_freq, freq);
/* Scaling up? Configure required OPPs before frequency */
if (freq > old_freq) {
if (freq >= old_freq) {
ret = _set_required_opps(dev, opp_table, opp);
if (ret)
goto put_opp;

16
drivers/opp/of.c
View File

@ -173,7 +173,7 @@ static void _opp_table_alloc_required_tables(struct opp_table *opp_table,
struct opp_table **required_opp_tables;
struct device **genpd_virt_devs = NULL;
struct device_node *required_np, *np;
int count, i;
int count, count_pd, i;
/* Traversing the first OPP node is all we need */
np = of_get_next_available_child(opp_np, NULL);
@ -186,7 +186,19 @@ static void _opp_table_alloc_required_tables(struct opp_table *opp_table,
if (!count)
goto put_np;
if (count > 1) {
/*
* Check the number of power-domains to know if we need to deal
* with virtual devices. In some cases we have devices with multiple
* power domains but with only one of them being scalable, hence
* 'count' could be 1, but we still have to deal with multiple genpds
* and virtual devices.
*/
count_pd = of_count_phandle_with_args(dev->of_node, "power-domains",
"#power-domain-cells");
if (!count_pd)
goto put_np;
if (count_pd > 1) {
genpd_virt_devs = kcalloc(count, sizeof(*genpd_virt_devs),
GFP_KERNEL);
if (!genpd_virt_devs)

19
tools/power/cpupower/lib/cpufreq.c
View File

@ -333,17 +333,20 @@ void cpufreq_put_available_governors(struct cpufreq_available_governors *any)
}
struct cpufreq_available_frequencies
*cpufreq_get_available_frequencies(unsigned int cpu)
struct cpufreq_frequencies
*cpufreq_get_frequencies(const char *type, unsigned int cpu)
{
struct cpufreq_available_frequencies *first = NULL;
struct cpufreq_available_frequencies *current = NULL;
struct cpufreq_frequencies *first = NULL;
struct cpufreq_frequencies *current = NULL;
char one_value[SYSFS_PATH_MAX];
char linebuf[MAX_LINE_LEN];
char fname[MAX_LINE_LEN];
unsigned int pos, i;
unsigned int len;
len = sysfs_cpufreq_read_file(cpu, "scaling_available_frequencies",
snprintf(fname, MAX_LINE_LEN, "scaling_%s_frequencies", type);
len = sysfs_cpufreq_read_file(cpu, fname,
linebuf, sizeof(linebuf));
if (len == 0)
return NULL;
@ -389,9 +392,9 @@ struct cpufreq_available_frequencies
return NULL;
}
void cpufreq_put_available_frequencies(struct cpufreq_available_frequencies
*any) {
struct cpufreq_available_frequencies *tmp, *next;
void cpufreq_put_frequencies(struct cpufreq_frequencies *any)
{
struct cpufreq_frequencies *tmp, *next;
if (!any)
return;

16
tools/power/cpupower/lib/cpufreq.h
View File

@ -28,10 +28,10 @@ struct cpufreq_available_governors {
struct cpufreq_available_governors *first;
};
struct cpufreq_available_frequencies {
struct cpufreq_frequencies {
unsigned long frequency;
struct cpufreq_available_frequencies *next;
struct cpufreq_available_frequencies *first;
struct cpufreq_frequencies *next;
struct cpufreq_frequencies *first;
};
@ -129,14 +129,14 @@ void cpufreq_put_available_governors(
*
* Only present on _some_ ->target() cpufreq drivers. For information purposes
* only. Please free allocated memory by calling
* cpufreq_put_available_frequencies after use.
* cpufreq_put_frequencies after use.
*/
struct cpufreq_available_frequencies
*cpufreq_get_available_frequencies(unsigned int cpu);
struct cpufreq_frequencies
*cpufreq_get_frequencies(const char *type, unsigned int cpu);
void cpufreq_put_available_frequencies(
struct cpufreq_available_frequencies *first);
void cpufreq_put_frequencies(
struct cpufreq_frequencies *first);
/* determine affected CPUs

42
tools/power/cpupower/utils/cpufreq-info.c
View File

@ -161,19 +161,12 @@ static void print_duration(unsigned long duration)
return;
}
/* --boost / -b */
static int get_boost_mode(unsigned int cpu)
static int get_boost_mode_x86(unsigned int cpu)
{
int support, active, b_states = 0, ret, pstate_no, i;
/* ToDo: Make this more global */
unsigned long pstates[MAX_HW_PSTATES] = {0,};
if (cpupower_cpu_info.vendor != X86_VENDOR_AMD &&
cpupower_cpu_info.vendor != X86_VENDOR_HYGON &&
cpupower_cpu_info.vendor != X86_VENDOR_INTEL)
return 0;
ret = cpufreq_has_boost_support(cpu, &support, &active, &b_states);
if (ret) {
printf(_("Error while evaluating Boost Capabilities"
@ -248,6 +241,33 @@ static int get_boost_mode(unsigned int cpu)
return 0;
}
/* --boost / -b */
static int get_boost_mode(unsigned int cpu)
{
struct cpufreq_frequencies *freqs;
if (cpupower_cpu_info.vendor == X86_VENDOR_AMD ||
cpupower_cpu_info.vendor == X86_VENDOR_HYGON ||
cpupower_cpu_info.vendor == X86_VENDOR_INTEL)
return get_boost_mode_x86(cpu);
freqs = cpufreq_get_frequencies("boost", cpu);
if (freqs) {
printf(_(" boost frequency steps: "));
while (freqs->next) {
print_speed(freqs->frequency);
printf(", ");
freqs = freqs->next;
}
print_speed(freqs->frequency);
printf("\n");
cpufreq_put_frequencies(freqs);
}
return 0;
}
/* --freq / -f */
static int get_freq_kernel(unsigned int cpu, unsigned int human)
@ -456,7 +476,7 @@ static int get_latency(unsigned int cpu, unsigned int human)
static void debug_output_one(unsigned int cpu)
{
struct cpufreq_available_frequencies *freqs;
struct cpufreq_frequencies *freqs;
get_driver(cpu);
get_related_cpus(cpu);
@ -464,7 +484,7 @@ static void debug_output_one(unsigned int cpu)
get_latency(cpu, 1);
get_hardware_limits(cpu, 1);
freqs = cpufreq_get_available_frequencies(cpu);
freqs = cpufreq_get_frequencies("available", cpu);
if (freqs) {
printf(_(" available frequency steps: "));
while (freqs->next) {
@ -474,7 +494,7 @@ static void debug_output_one(unsigned int cpu)
}
print_speed(freqs->frequency);
printf("\n");
cpufreq_put_available_frequencies(freqs);
cpufreq_put_frequencies(freqs);
}
get_available_governors(cpu);