diff mbox series

x86/cpu/amd: remove the CPU model ID to get correct highest perf

Message ID 20221003155547.1325988-1-Perry.Yuan@amd.com (mailing list archive)
State Handled Elsewhere, archived
Headers show
Series x86/cpu/amd: remove the CPU model ID to get correct highest perf | expand

Commit Message

Yuan, Perry Oct. 3, 2022, 3:55 p.m. UTC 
The AMD Rome CPU model IDs(30h-3Fh) do not need to get the highest
perf value from the amd_get_highest_perf() function, the correct
highest perf will be queried from the cppc_acpi interface.

Fixes: 3743d55b2 (x86, sched: Fix the AMD CPPC maximum performance value on certain AMD Ryzen generations)
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Cc: stable@vger.kernel.org
---
 arch/x86/kernel/cpu/amd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 48276c0e479d..1734cc5aa7ff 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1183,8 +1183,7 @@  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)))
+	if (c->x86 == 0x17 && (c->x86_model >= 0x70 && c->x86_model < 0x80))
 		return 166;
 
 	if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model < 0x30) ||