linux-kernel - [PATCH v3 2/8] platform/x86: intel/pmc: Move variable declarations and definitions to header and core.c

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Date:   Mon, 14 Nov 2022 10:12:01 -0800
From:   Gayatri Kammela <gayatri.kammela@...ux.intel.com>
To:     hdegoede@...hat.com
Cc:     irenic.rajneesh@...il.com, markgross@...nel.org,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        sukumar.ghorai@...el.com, xi.pardee@...el.com,
        rajvi.jingar@...el.com, David E Box <david.e.box@...ux.intel.com>
Subject: [PATCH v3 2/8] platform/x86: intel/pmc: Move variable declarations and definitions to header and core.c

From: Xi Pardee <xi.pardee@...el.com>

Move the msr_map variable declaration to core.h and move the pmc_lpm_modes
definition to core.c.

This is a prepartory patch for redesigning the pmc core driver as the
variables will be used in multiple PCH specific files.

Cc: David E Box <david.e.box@...ux.intel.com>
Reviewed-by: "David E. Box" <david.e.box@...ux.intel.com>
Signed-off-by: Xi Pardee <xi.pardee@...el.com>
Signed-off-by: "David E. Box" <david.e.box@...ux.intel.com>
---
 drivers/platform/x86/intel/pmc/core.c | 15 ++++++++++++++-
 drivers/platform/x86/intel/pmc/core.h | 13 ++-----------
 2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index b434cf5b094b..cfa654672cba 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -35,8 +35,21 @@
 #define ACPI_S0IX_DSM_UUID		"57a6512e-3979-4e9d-9708-ff13b2508972"
 #define ACPI_GET_LOW_MODE_REGISTERS	1
 
+/* Maximum number of modes supported by platfoms that has low power mode capability */
+const char *pmc_lpm_modes[] = {
+	"S0i2.0",
+	"S0i2.1",
+	"S0i2.2",
+	"S0i3.0",
+	"S0i3.1",
+	"S0i3.2",
+	"S0i3.3",
+	"S0i3.4",
+	NULL
+};
+
 /* PKGC MSRs are common across Intel Core SoCs */
-static const struct pmc_bit_map msr_map[] = {
+const struct pmc_bit_map msr_map[] = {
 	{"Package C2",                  MSR_PKG_C2_RESIDENCY},
 	{"Package C3",                  MSR_PKG_C3_RESIDENCY},
 	{"Package C6",                  MSR_PKG_C6_RESIDENCY},
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index e64b33e46397..b4279ed59bbe 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -237,17 +237,7 @@ enum ppfear_regs {
 #define ADL_LPM_STATUS_LATCH_EN_OFFSET		0x1704
 #define ADL_LPM_LIVE_STATUS_OFFSET		0x1764
 
-static const char *pmc_lpm_modes[] = {
-	"S0i2.0",
-	"S0i2.1",
-	"S0i2.2",
-	"S0i3.0",
-	"S0i3.1",
-	"S0i3.2",
-	"S0i3.3",
-	"S0i3.4",
-	NULL
-};
+extern const char *pmc_lpm_modes[];
 
 struct pmc_bit_map {
 	const char *name;
@@ -346,6 +336,7 @@ struct pmc_dev {
 	void (*core_configure)(struct pmc_dev *pmcdev);
 };
 
+extern const struct pmc_bit_map msr_map[];
 void spt_core_init(struct pmc_dev *pmcdev);
 void cnp_core_init(struct pmc_dev *pmcdev);
 void icl_core_init(struct pmc_dev *pmcdev);
-- 
2.25.1