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From:   Perry Yuan <perry.yuan@amd.com>
To:     <rafael.j.wysocki@intel.com>, <Mario.Limonciello@amd.com>,
        <ray.huang@amd.com>, <viresh.kumar@linaro.org>
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        <Xiaojian.Du@amd.com>, <Li.Meng@amd.com>, <wyes.karny@amd.com>,
        <linux-pm@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH v6 03/11] cpufreq: intel_pstate: use common macro definition for Energy Preference Performance(EPP)
Date:   Fri, 2 Dec 2022 15:47:11 +0800
Message-ID: <20221202074719.623673-4-perry.yuan@amd.com>
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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@amd.com>
---
 arch/x86/include/asm/msr-index.h |  4 ---
 drivers/cpufreq/intel_pstate.c   | 37 +--------------------
 include/linux/cpufreq_common.h   | 56 ++++++++++++++++++++++++++++++++
 3 files changed, 57 insertions(+), 40 deletions(-)
 create mode 100644 include/linux/cpufreq_common.h

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 4a2af82553e4..3983378cff5b 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -472,10 +472,6 @@
 #define HWP_MAX_PERF(x) 		((x & 0xff) << 8)
 #define HWP_DESIRED_PERF(x)		((x & 0xff) << 16)
 #define HWP_ENERGY_PERF_PREFERENCE(x)	(((unsigned long long) x & 0xff) << 24)
-#define HWP_EPP_PERFORMANCE		0x00
-#define HWP_EPP_BALANCE_PERFORMANCE	0x80
-#define HWP_EPP_BALANCE_POWERSAVE	0xC0
-#define HWP_EPP_POWERSAVE		0xFF
 #define HWP_ACTIVITY_WINDOW(x)		((unsigned long long)(x & 0xff3) << 32)
 #define HWP_PACKAGE_CONTROL(x)		((unsigned long long)(x & 0x1) << 42)
 
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index ad9be31753b6..65036ca21719 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -25,6 +25,7 @@
 #include <linux/acpi.h>
 #include <linux/vmalloc.h>
 #include <linux/pm_qos.h>
+#include <linux/cpufreq_common.h>
 #include <trace/events/power.h>
 
 #include <asm/cpu.h>
@@ -628,42 +629,6 @@ 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/linux/cpufreq_common.h b/include/linux/cpufreq_common.h
new file mode 100644
index 000000000000..2d14b0b0f55c
--- /dev/null
+++ b/include/linux/cpufreq_common.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * linux/include/linux/cpufreq_common.h
+ *
+ * Copyright (C) 2022 Advanced Micro Devices, Inc.
+ *
+ * Author: Perry Yuan <Perry.Yuan@amd.com>
+ */
+
+#ifndef _LINUX_CPUFREQ_COMMON_H
+#define _LINUX_CPUFREQ_COMMON_H
+
+#include <asm/msr.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
+ */
+
+#define HWP_EPP_PERFORMANCE		0x00
+#define HWP_EPP_BALANCE_PERFORMANCE	0x80
+#define HWP_EPP_BALANCE_POWERSAVE	0xC0
+#define HWP_EPP_POWERSAVE		0xFF
+
+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,
+};
+
+#endif /* _LINUX_CPUFREQ_COMMON_H */
\ No newline at end of file
-- 
2.34.1