From 2bcec09cc4ae62229e149213499e45b74190a24a Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Mon, 26 Aug 2024 16:13:51 -0500 Subject: x86/amd: Move amd_get_highest_perf() from amd.c to cppc.c To prepare to let amd_get_highest_perf() detect preferred cores it will require CPPC functions. Move amd_get_highest_perf() to cppc.c to prepare for 'preferred core detection' rework. No functional changes intended. Reviewed-by: Perry Yuan Reviewed-by: Gautham R. Shenoy Signed-off-by: Mario Limonciello --- arch/x86/kernel/acpi/cppc.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'arch/x86/kernel/acpi/cppc.c') diff --git a/arch/x86/kernel/acpi/cppc.c b/arch/x86/kernel/acpi/cppc.c index ff8f25faca3d..7ec8f2ce859c 100644 --- a/arch/x86/kernel/acpi/cppc.c +++ b/arch/x86/kernel/acpi/cppc.c @@ -116,3 +116,19 @@ void init_freq_invariance_cppc(void) init_done = true; mutex_unlock(&freq_invariance_lock); } + +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))) + return 166; + + if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model < 0x30) || + (c->x86_model >= 0x40 && c->x86_model < 0x70))) + return 166; + + return 255; +} +EXPORT_SYMBOL_GPL(amd_get_highest_perf); -- cgit