[PATCH 1/2] x86/cpu/hygon: Introduce macros for hygon family numbers
From: Chaohong Guo
Date: Mon Aug 03 2026 - 01:39:23 EST
Consolidate all magic numbers of hygon CPUs into a header file,
The macros describe the family/model numbers of hygon CPUs.
Signed-off-by: Chaohong Guo <guochaohong@xxxxxxxxxxxxxx>
Co-developed-by: Zhiquan Li <lizhiquan@xxxxxxxxxxxxxx>
Signed-off-by: Zhiquan Li <lizhiquan@xxxxxxxxxxxxxx>
---
arch/x86/include/asm/cpu_device_id.h | 2 ++
arch/x86/include/asm/processor-hygon.h | 20 ++++++++++++++++++++
2 files changed, 22 insertions(+)
create mode 100644 arch/x86/include/asm/processor-hygon.h
diff --git a/arch/x86/include/asm/cpu_device_id.h b/arch/x86/include/asm/cpu_device_id.h
index c62d8fae52c3..447837d15f87 100644
--- a/arch/x86/include/asm/cpu_device_id.h
+++ b/arch/x86/include/asm/cpu_device_id.h
@@ -44,6 +44,8 @@
#include <asm/intel-family.h>
/* And the X86_VENDOR_* ones */
#include <asm/processor.h>
+/* Hygon HFM model defines */
+#include <asm/processor-hygon.h>
/* Centaur FAM6 models */
#define X86_CENTAUR_FAM6_C7_A 0xa
diff --git a/arch/x86/include/asm/processor-hygon.h b/arch/x86/include/asm/processor-hygon.h
new file mode 100644
index 000000000000..08150e3ea379
--- /dev/null
+++ b/arch/x86/include/asm/processor-hygon.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * The helpers to support Hygon CPU specific code path.
+ */
+
+#ifndef _ASM_X86_PROCESSOR_HYGON_H
+#define _ASM_X86_PROCESSOR_HYGON_H
+
+#include <asm/processor.h>
+
+#define HFM(_family, _model) VFM_MAKE(X86_VENDOR_HYGON, _family, _model)
+
+#define HYGON_F18_M04 HFM(0x18, 4)
+#define HYGON_F18_M06 HFM(0x18, 6)
+#define HYGON_F18_M07 HFM(0x18, 7)
+
+
+#define HYGON_7447V HYGON_F18_M07
+
+#endif /* _ASM_X86_PROCESSOR_HYGON_H */
--
2.18.2