@@ -53,6 +53,9 @@ human\-readable output for the \-f, \-w, \-s and \-y parameters.
\fB\-n\fR \fB\-\-no-rounding\fR
Output frequencies and latencies without rounding off values.
.TP
+\fB\-c\fR \fB\-\-perf\fR
+Get performances and frequencies capabilities of CPPC, by reading it from hardware (only available on the hardware with CPPC).
+.TP
.SH "REMARKS"
.LP
By default only values of core zero are displayed. How to display settings of
@@ -438,6 +438,17 @@ static int get_latency(unsigned int cpu, unsigned int human)
return 0;
}
+/* --performance / -c */
+
+static int get_perf_cap(unsigned int cpu)
+{
+ if (cpupower_cpu_info.vendor == X86_VENDOR_AMD &&
+ cpupower_cpu_info.caps & CPUPOWER_CAP_AMD_PSTATE)
+ amd_pstate_show_perf_and_freq(cpu, no_rounding);
+
+ return 0;
+}
+
static void debug_output_one(unsigned int cpu)
{
struct cpufreq_available_frequencies *freqs;
@@ -466,6 +477,7 @@ static void debug_output_one(unsigned int cpu)
if (get_freq_hardware(cpu, 1) < 0)
get_freq_kernel(cpu, 1);
get_boost_mode(cpu);
+ get_perf_cap(cpu);
}
static struct option info_opts[] = {
@@ -484,6 +496,7 @@ static struct option info_opts[] = {
{"proc", no_argument, NULL, 'o'},
{"human", no_argument, NULL, 'm'},
{"no-rounding", no_argument, NULL, 'n'},
+ {"performance", no_argument, NULL, 'c'},
{ },
};
@@ -497,7 +510,7 @@ int cmd_freq_info(int argc, char **argv)
int output_param = 0;
do {
- ret = getopt_long(argc, argv, "oefwldpgrasmybn", info_opts,
+ ret = getopt_long(argc, argv, "oefwldpgrasmybnc", info_opts,
NULL);
switch (ret) {
case '?':
@@ -520,6 +533,7 @@ int cmd_freq_info(int argc, char **argv)
case 'e':
case 's':
case 'y':
+ case 'c':
if (output_param) {
output_param = -1;
cont = 0;
@@ -626,6 +640,9 @@ int cmd_freq_info(int argc, char **argv)
case 'y':
ret = get_latency(cpu, human);
break;
+ case 'c':
+ ret = get_perf_cap(cpu);
+ break;
}
if (ret)
return ret;
Add "-r --perf" option in cpupower-frequency-info to get the performance and frequency values for AMD P-State. Signed-off-by: Huang Rui <ray.huang@amd.com> --- .../cpupower/man/cpupower-frequency-info.1 | 3 +++ tools/power/cpupower/utils/cpufreq-info.c | 19 ++++++++++++++++++- 2 files changed, 21 insertions(+), 1 deletion(-)