linux-kernel - [PATCH v10 03/12] cpufreq: intel_pstate: use common macro definition for Energy Preference Performance(EPP)

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Date:   Fri, 6 Jan 2023 14:14:11 +0800
From:   Perry Yuan <perry.yuan@....com>
To:     <rafael.j.wysocki@...el.com>, <Mario.Limonciello@....com>,
        <ray.huang@....com>, <viresh.kumar@...aro.org>
CC:     <Deepak.Sharma@....com>, <Nathan.Fontenot@....com>,
        <Alexander.Deucher@....com>, <Shimmer.Huang@....com>,
        <Xiaojian.Du@....com>, <Li.Meng@....com>, <wyes.karny@....com>,
        <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v10 03/12] cpufreq: intel_pstate: use common macro definition for Energy Preference Performance(EPP)

make the energy preference performance strings and profiles using one
common header for intel_pstate driver, then the amd_pstate epp driver can
use the common header as well. This will simpify the intel_pstate and
amd_pstate driver.

Signed-off-by: Perry Yuan <perry.yuan@....com>
---
 drivers/acpi/cppc_acpi.c       | 29 +++++++++++++++++++++++++++
 drivers/cpufreq/intel_pstate.c | 36 ----------------------------------
 include/acpi/cppc_acpi.h       | 10 ++++++++++
 3 files changed, 39 insertions(+), 36 deletions(-)

diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 0ce6c55a76ca..c7aa190ec2d2 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -42,6 +42,35 @@
 
 #include <acpi/cppc_acpi.h>
 
+/*
+ * EPP/EPB display strings corresponding to EPP index in the
+ * energy_perf_strings[]
+ *	index		String
+ *-------------------------------------
+ *	0		default
+ *	1		performance
+ *	2		balance_performance
+ *	3		balance_power
+ *	4		power
+ */
+
+const char * const energy_perf_strings[] = {
+	[EPP_INDEX_DEFAULT] = "default",
+	[EPP_INDEX_PERFORMANCE] = "performance",
+	[EPP_INDEX_BALANCE_PERFORMANCE] = "balance_performance",
+	[EPP_INDEX_BALANCE_POWERSAVE] = "balance_power",
+	[EPP_INDEX_POWERSAVE] = "power",
+	NULL
+};
+
+unsigned int epp_values[] = {
+	[EPP_INDEX_DEFAULT] = 0, /* Unused index */
+	[EPP_INDEX_PERFORMANCE] = HWP_EPP_PERFORMANCE,
+	[EPP_INDEX_BALANCE_PERFORMANCE] = HWP_EPP_BALANCE_PERFORMANCE,
+	[EPP_INDEX_BALANCE_POWERSAVE] = HWP_EPP_BALANCE_POWERSAVE,
+	[EPP_INDEX_POWERSAVE] = HWP_EPP_POWERSAVE,
+};
+
 struct cppc_pcc_data {
 	struct pcc_mbox_chan *pcc_channel;
 	void __iomem *pcc_comm_addr;
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index ad9be31753b6..01431e279be6 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -628,42 +628,6 @@ static int intel_pstate_set_epb(int cpu, s16 pref)
 	return 0;
 }
 
-/*
- * EPP/EPB display strings corresponding to EPP index in the
- * energy_perf_strings[]
- *	index		String
- *-------------------------------------
- *	0		default
- *	1		performance
- *	2		balance_performance
- *	3		balance_power
- *	4		power
- */
-
-enum energy_perf_value_index {
-	EPP_INDEX_DEFAULT = 0,
-	EPP_INDEX_PERFORMANCE,
-	EPP_INDEX_BALANCE_PERFORMANCE,
-	EPP_INDEX_BALANCE_POWERSAVE,
-	EPP_INDEX_POWERSAVE,
-};
-
-static const char * const energy_perf_strings[] = {
-	[EPP_INDEX_DEFAULT] = "default",
-	[EPP_INDEX_PERFORMANCE] = "performance",
-	[EPP_INDEX_BALANCE_PERFORMANCE] = "balance_performance",
-	[EPP_INDEX_BALANCE_POWERSAVE] = "balance_power",
-	[EPP_INDEX_POWERSAVE] = "power",
-	NULL
-};
-static unsigned int epp_values[] = {
-	[EPP_INDEX_DEFAULT] = 0, /* Unused index */
-	[EPP_INDEX_PERFORMANCE] = HWP_EPP_PERFORMANCE,
-	[EPP_INDEX_BALANCE_PERFORMANCE] = HWP_EPP_BALANCE_PERFORMANCE,
-	[EPP_INDEX_BALANCE_POWERSAVE] = HWP_EPP_BALANCE_POWERSAVE,
-	[EPP_INDEX_POWERSAVE] = HWP_EPP_POWERSAVE,
-};
-
 static int intel_pstate_get_energy_pref_index(struct cpudata *cpu_data, int *raw_epp)
 {
 	s16 epp;
diff --git a/include/acpi/cppc_acpi.h b/include/acpi/cppc_acpi.h
index 6b487a5bd638..891e5add0e49 100644
--- a/include/acpi/cppc_acpi.h
+++ b/include/acpi/cppc_acpi.h
@@ -135,6 +135,16 @@ struct cppc_cpudata {
 	cpumask_var_t shared_cpu_map;
 };
 
+enum energy_perf_value_index {
+	EPP_INDEX_DEFAULT = 0,
+	EPP_INDEX_PERFORMANCE,
+	EPP_INDEX_BALANCE_PERFORMANCE,
+	EPP_INDEX_BALANCE_POWERSAVE,
+	EPP_INDEX_POWERSAVE,
+};
+extern const char * const energy_perf_strings[];
+extern unsigned int epp_values[];
+
 #ifdef CONFIG_ACPI_CPPC_LIB
 extern int cppc_get_desired_perf(int cpunum, u64 *desired_perf);
 extern int cppc_get_nominal_perf(int cpunum, u64 *nominal_perf);
-- 
2.34.1