lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Tue, 22 Feb 2022 23:34:26 +0800 From: Huang Rui <ray.huang@....com> To: Shuah Khan <skhan@...uxfoundation.org>, "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>, <linux-pm@...r.kernel.org> CC: Deepak Sharma <deepak.sharma@....com>, Alex Deucher <alexander.deucher@....com>, Mario Limonciello <mario.limonciello@....com>, Steven Noonan <steven@...vesoftware.com>, Nathan Fontenot <nathan.fontenot@....com>, Jinzhou Su <Jinzhou.Su@....com>, Xiaojian Du <Xiaojian.Du@....com>, Perry Yuan <Perry.Yuan@....com>, Jassmine Meng <li.meng@....com>, Borislav Petkov <bp@...en8.de>, Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org>, Viresh Kumar <viresh.kumar@...aro.org>, Steven Rostedt <rostedt@...dmis.org>, "Giovanni Gherdovich" <ggherdovich@...e.cz>, <linux-kernel@...r.kernel.org>, Huang Rui <ray.huang@....com> Subject: [PATCH v7 10/10] cpupower: Add "perf" option to print AMD P-State information 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@....com> --- .../cpupower/man/cpupower-frequency-info.1 | 3 +++ tools/power/cpupower/utils/cpufreq-info.c | 19 ++++++++++++++++++- 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/tools/power/cpupower/man/cpupower-frequency-info.1 b/tools/power/cpupower/man/cpupower-frequency-info.1 index 6aa8d239dff9..dd545b499480 100644 --- a/tools/power/cpupower/man/cpupower-frequency-info.1 +++ b/tools/power/cpupower/man/cpupower-frequency-info.1 @@ -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 diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c index 235243ec5ce0..0646f615fe2d 100644 --- a/tools/power/cpupower/utils/cpufreq-info.c +++ b/tools/power/cpupower/utils/cpufreq-info.c @@ -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; -- 2.25.1
Powered by blists - more mailing lists