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authorJuergen Gross <jgross@suse.com>2026-06-29 08:05:01 +0200
committerIngo Molnar <mingo@kernel.org>2026-07-02 11:54:51 +0200
commitc36c3d7e5dc49f0085e26ee4bcd2cb6493b0120e (patch)
tree8049142ec181c7231598908261d19b6c1a2aef2c
parentcff219368bd066d67cc66e8fcdd2c4b13f5101ce (diff)
downloadlinux-c36c3d7e5dc49f0085e26ee4bcd2cb6493b0120e.tar.gz
linux-c36c3d7e5dc49f0085e26ee4bcd2cb6493b0120e.zip
x86/hygon: Stop using 32-bit MSR interfaces
The 32-bit MSR interface rdmsr_safe()is planned to be removed. Use the related 64-bit variant instead. Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Pu Wen <puwen@hygon.cn> Link: https://patch.msgid.link/20260629060526.3638272-11-jgross@suse.com
-rw-r--r--arch/x86/kernel/cpu/hygon.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/hygon.c b/arch/x86/kernel/cpu/hygon.c
index 3e8891a9caf2..ec51c2b9a257 100644
--- a/arch/x86/kernel/cpu/hygon.c
+++ b/arch/x86/kernel/cpu/hygon.c
@@ -125,11 +125,12 @@ static void bsp_init_hygon(struct cpuinfo_x86 *c)
static void early_init_hygon(struct cpuinfo_x86 *c)
{
- u32 dummy;
+ u64 val;
set_cpu_cap(c, X86_FEATURE_K8);
- rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);
+ rdmsrq_safe(MSR_AMD64_PATCH_LEVEL, &val);
+ c->microcode = (u32)val;
/*
* c->x86_power is 8000_0007 edx. Bit 8 is TSC runs at constant rate