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

Ricardo Neri
2024-02-03T04:04:04Z

From: Zhao Liu <zhao1.liu@intel.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@intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Cc: Zhuocheng Ding <zhuocheng.ding@intel.com>
Cc: x86@kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.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