From: Huang Rui <ray.huang@amd.com>
To: Shuah Khan <skhan@linuxfoundation.org>,
"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
<linux-pm@vger.kernel.org>
Cc: Deepak Sharma <deepak.sharma@amd.com>,
Alex Deucher <alexander.deucher@amd.com>,
Mario Limonciello <mario.limonciello@amd.com>,
Steven Noonan <steven@valvesoftware.com>,
Nathan Fontenot <nathan.fontenot@amd.com>,
Jinzhou Su <Jinzhou.Su@amd.com>,
Xiaojian Du <Xiaojian.Du@amd.com>,
Perry Yuan <Perry.Yuan@amd.com>, Jassmine Meng <li.meng@amd.com>,
Borislav Petkov <bp@alien8.de>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Steven Rostedt <rostedt@goodmis.org>,
"Giovanni Gherdovich" <ggherdovich@suse.cz>,
<linux-kernel@vger.kernel.org>, Huang Rui <ray.huang@amd.com>
Subject: [PATCH v7 09/10] cpupower: Add function to print AMD P-State performance capabilities
Date: Tue, 22 Feb 2022 23:34:25 +0800 [thread overview]
Message-ID: <20220222153426.2216974-10-ray.huang@amd.com> (raw)
In-Reply-To: <20220222153426.2216974-1-ray.huang@amd.com>
AMD P-State kernel module is using the fine grain frequency instead of
acpi hardware pstate. So add a function to print performance and
frequency values.
Signed-off-by: Huang Rui <ray.huang@amd.com>
---
tools/power/cpupower/utils/cpufreq-info.c | 9 ++++--
tools/power/cpupower/utils/helpers/amd.c | 29 ++++++++++++++++++++
tools/power/cpupower/utils/helpers/helpers.h | 5 ++++
3 files changed, 40 insertions(+), 3 deletions(-)
diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c
index b429454bf3ae..235243ec5ce0 100644
--- a/tools/power/cpupower/utils/cpufreq-info.c
+++ b/tools/power/cpupower/utils/cpufreq-info.c
@@ -146,9 +146,12 @@ static int get_boost_mode_x86(unsigned int cpu)
printf(_(" Supported: %s\n"), support ? _("yes") : _("no"));
printf(_(" Active: %s\n"), active ? _("yes") : _("no"));
- if ((cpupower_cpu_info.vendor == X86_VENDOR_AMD &&
- cpupower_cpu_info.family >= 0x10) ||
- cpupower_cpu_info.vendor == X86_VENDOR_HYGON) {
+ if (cpupower_cpu_info.vendor == X86_VENDOR_AMD &&
+ cpupower_cpu_info.caps & CPUPOWER_CAP_AMD_PSTATE) {
+ return 0;
+ } else if ((cpupower_cpu_info.vendor == X86_VENDOR_AMD &&
+ cpupower_cpu_info.family >= 0x10) ||
+ cpupower_cpu_info.vendor == X86_VENDOR_HYGON) {
ret = decode_pstates(cpu, b_states, pstates, &pstate_no);
if (ret)
return ret;
diff --git a/tools/power/cpupower/utils/helpers/amd.c b/tools/power/cpupower/utils/helpers/amd.c
index f5ba528dc7db..c519cc89c97f 100644
--- a/tools/power/cpupower/utils/helpers/amd.c
+++ b/tools/power/cpupower/utils/helpers/amd.c
@@ -193,5 +193,34 @@ void amd_pstate_boost_init(unsigned int cpu, int *support, int *active)
*active = cpuinfo_max == amd_pstate_max ? 1 : 0;
}
+void amd_pstate_show_perf_and_freq(unsigned int cpu, int no_rounding)
+{
+ printf(_(" AMD PSTATE Highest Performance: %lu. Maximum Frequency: "),
+ amd_pstate_get_data(cpu, AMD_PSTATE_HIGHEST_PERF));
+ /*
+ * If boost isn't active, the cpuinfo_max doesn't indicate real max
+ * frequency. So we read it back from amd-pstate sysfs entry.
+ */
+ print_speed(amd_pstate_get_data(cpu, AMD_PSTATE_MAX_FREQ), no_rounding);
+ printf(".\n");
+
+ printf(_(" AMD PSTATE Nominal Performance: %lu. Nominal Frequency: "),
+ acpi_cppc_get_data(cpu, NOMINAL_PERF));
+ print_speed(acpi_cppc_get_data(cpu, NOMINAL_FREQ) * 1000,
+ no_rounding);
+ printf(".\n");
+
+ printf(_(" AMD PSTATE Lowest Non-linear Performance: %lu. Lowest Non-linear Frequency: "),
+ acpi_cppc_get_data(cpu, LOWEST_NONLINEAR_PERF));
+ print_speed(amd_pstate_get_data(cpu, AMD_PSTATE_LOWEST_NONLINEAR_FREQ),
+ no_rounding);
+ printf(".\n");
+
+ printf(_(" AMD PSTATE Lowest Performance: %lu. Lowest Frequency: "),
+ acpi_cppc_get_data(cpu, LOWEST_PERF));
+ print_speed(acpi_cppc_get_data(cpu, LOWEST_FREQ) * 1000, no_rounding);
+ printf(".\n");
+}
+
/* AMD P-State Helper Functions ************************************/
#endif /* defined(__i386__) || defined(__x86_64__) */
diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h
index fa2a8c1b1d26..96e4bede078b 100644
--- a/tools/power/cpupower/utils/helpers/helpers.h
+++ b/tools/power/cpupower/utils/helpers/helpers.h
@@ -142,6 +142,8 @@ extern int cpufreq_has_boost_support(unsigned int cpu, int *support,
bool cpupower_amd_pstate_enabled(void);
void amd_pstate_boost_init(unsigned int cpu,
int *support, int *active);
+void amd_pstate_show_perf_and_freq(unsigned int cpu,
+ int no_rounding);
/* AMD P-State stuff **************************/
@@ -182,6 +184,9 @@ static inline bool cpupower_amd_pstate_enabled(void)
static inline void amd_pstate_boost_init(unsigned int cpu, int *support,
int *active)
{}
+static inline void amd_pstate_show_perf_and_freq(unsigned int cpu,
+ int no_rounding)
+{}
/* cpuid and cpuinfo helpers **************************/
--
2.25.1
next prev parent reply other threads:[~2022-02-22 15:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-22 15:34 [PATCH v7 00/10] cpupower: Add AMD P-State Support Huang Rui
2022-02-22 15:34 ` [PATCH v7 01/10] cpupower: Add AMD P-State capability flag Huang Rui
2022-02-22 15:34 ` [PATCH v7 02/10] cpupower: Add the function to check AMD P-State enabled Huang Rui
2022-02-22 15:34 ` [PATCH v7 03/10] cpupower: Initial AMD P-State capability Huang Rui
2022-02-22 15:34 ` [PATCH v7 04/10] cpupower: Add the function to get the sysfs value from specific table Huang Rui
2022-02-22 15:34 ` [PATCH v7 05/10] cpupower: Introduce ACPI CPPC library Huang Rui
2022-02-22 15:34 ` [PATCH v7 06/10] cpupower: Add AMD P-State sysfs definition and access helper Huang Rui
2022-02-22 15:34 ` [PATCH v7 07/10] cpupower: Enable boost state support for AMD P-State module Huang Rui
2022-02-22 15:34 ` [PATCH v7 08/10] cpupower: Move print_speed function into misc helper Huang Rui
2022-02-22 15:34 ` Huang Rui [this message]
2022-02-22 15:34 ` [PATCH v7 10/10] cpupower: Add "perf" option to print AMD P-State information Huang Rui
2022-02-23 3:37 ` Huang Rui
2022-02-24 0:55 ` Shuah Khan
2022-02-23 1:44 ` [PATCH v7 00/10] cpupower: Add AMD P-State Support Shuah Khan
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