linux-kernel - [PATCH 1/9] thermal: intel: hfi: Relocate bit definitions of HFI registers

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Message-Id: <20240203040515.23947-2-ricardo.neri-calderon@linux.intel.com>
Date: Fri,  2 Feb 2024 20:05:07 -0800
From: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
To: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Cc: Len Brown <len.brown@...el.com>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>,
	Zhao Liu <zhao1.liu@...el.com>,
	Zhuocheng Ding <zhuocheng.ding@...el.com>,
	x86@...nel.org,
	linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
Subject: [PATCH 1/9] thermal: intel: hfi: Relocate bit definitions of HFI registers

From: Zhao Liu <zhao1.liu@...el.com>

KVM needs the definition of several HFI registers for the virtualization
of HFI. Move the necessary definitions to msr-index.h

While here, use BIT_ULL() and GENMASK_ULL() since the relevant registers
have 64 bits. Also, remove the "_BIT" suffix for consistency in naming.

No functional changes.

Cc: Len Brown <len.brown@...el.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Cc: Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>
Cc: Zhuocheng Ding <zhuocheng.ding@...el.com>
Cc: x86@...nel.org
Cc: linux-pm@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Zhao Liu <zhao1.liu@...el.com>
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
---
 arch/x86/include/asm/msr-index.h  |  4 ++++
 drivers/thermal/intel/intel_hfi.c | 10 +++-------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index f1bd7b91b3c6..46983fb0b5b3 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -1143,7 +1143,11 @@
 
 /* Hardware Feedback Interface */
 #define MSR_IA32_HW_FEEDBACK_PTR        0x17d0
+#define HW_FEEDBACK_PTR_VALID           BIT_ULL(0)
+#define HW_FEEDBACK_PTR_RESERVED_MASK   GENMASK_ULL(11, 1)
+
 #define MSR_IA32_HW_FEEDBACK_CONFIG     0x17d1
+#define HW_FEEDBACK_CONFIG_HFI_ENABLE   BIT_ULL(0)
 
 /* x2APIC locked status */
 #define MSR_IA32_XAPIC_DISABLE_STATUS	0xBD
diff --git a/drivers/thermal/intel/intel_hfi.c b/drivers/thermal/intel/intel_hfi.c
index 3b04c6ec4fca..9aaca74bdfa3 100644
--- a/drivers/thermal/intel/intel_hfi.c
+++ b/drivers/thermal/intel/intel_hfi.c
@@ -48,10 +48,6 @@
 
 #include "../thermal_netlink.h"
 
-/* Hardware Feedback Interface MSR configuration bits */
-#define HW_FEEDBACK_PTR_VALID_BIT		BIT(0)
-#define HW_FEEDBACK_CONFIG_HFI_ENABLE_BIT	BIT(0)
-
 /* CPUID detection and enumeration definitions for HFI */
 
 #define CPUID_HFI_LEAF 6
@@ -356,7 +352,7 @@ static void hfi_enable(void)
 	u64 msr_val;
 
 	rdmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
-	msr_val |= HW_FEEDBACK_CONFIG_HFI_ENABLE_BIT;
+	msr_val |= HW_FEEDBACK_CONFIG_HFI_ENABLE;
 	wrmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
 }
 
@@ -366,7 +362,7 @@ static void hfi_set_hw_table(struct hfi_instance *hfi_instance)
 	u64 msr_val;
 
 	hw_table_pa = virt_to_phys(hfi_instance->hw_table);
-	msr_val = hw_table_pa | HW_FEEDBACK_PTR_VALID_BIT;
+	msr_val = hw_table_pa | HW_FEEDBACK_PTR_VALID;
 	wrmsrl(MSR_IA32_HW_FEEDBACK_PTR, msr_val);
 }
 
@@ -377,7 +373,7 @@ static void hfi_disable(void)
 	int i;
 
 	rdmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
-	msr_val &= ~HW_FEEDBACK_CONFIG_HFI_ENABLE_BIT;
+	msr_val &= ~HW_FEEDBACK_CONFIG_HFI_ENABLE;
 	wrmsrl(MSR_IA32_HW_FEEDBACK_CONFIG, msr_val);
 
 	/*
-- 
2.25.1