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Date: Thu, 1 Sep 2022 16:59:39 +0800
From: Perry Yuan <Perry.Yuan@....com>
To: <rafael.j.wysocki@...el.com>, <ray.huang@....com>,
<viresh.kumar@...aro.org>
CC: <Deepak.Sharma@....com>, <Mario.Limonciello@....com>,
<Nathan.Fontenot@....com>, <Alexander.Deucher@....com>,
<Jinzhou.Su@....com>, <Shimmer.Huang@....com>,
<Xiaojian.Du@....com>, <Li.Meng@....com>,
<linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
Perry Yuan <Perry.Yuan@....com>
Subject: [PATCH v3] x86/cpu/amd: fix the highest perf query for new AMD processors
In order to get the corrent highest perf for some new AMD processors,
the amd_get_highest_perf() call will check the CPU model and
return correct highest perf value.
Acked-by: Huang Rui <ray.huang@....com>
Signed-off-by: Perry Yuan <Perry.Yuan@....com>
---
arch/x86/kernel/cpu/amd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 48276c0e479d..bdb0bfa80525 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1184,7 +1184,8 @@ u32 amd_get_highest_perf(void)
struct cpuinfo_x86 *c = &boot_cpu_data;
if (c->x86 == 0x17 && ((c->x86_model >= 0x30 && c->x86_model < 0x40) ||
- (c->x86_model >= 0x70 && c->x86_model < 0x80)))
+ (c->x86_model >= 0x70 && c->x86_model < 0x80) ||
+ (c->x86_model >= 0xa0 && c->x86_model < 0xb0)))
return 166;
if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model < 0x30) ||
--
2.34.1
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