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Message-ID: <20240905163007.1350840-2-superm1@kernel.org>
Date: Thu, 5 Sep 2024 11:29:57 -0500
From: Mario Limonciello <superm1@...nel.org>
To: "Gautham R . Shenoy" <gautham.shenoy@....com>,
Perry Yuan <perry.yuan@....com>
Cc: Borislav Petkov <bp@...en8.de>,
x86@...nel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
"Rafael J . Wysocki" <rafael@...nel.org>,
linux-kernel@...r.kernel.org (open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
linux-acpi@...r.kernel.org (open list:ACPI),
linux-pm@...r.kernel.org (open list:CPU FREQUENCY SCALING FRAMEWORK),
Mario Limonciello <mario.limonciello@....com>
Subject: [PATCH v3 01/11] x86/amd: Move amd_get_highest_perf() from amd.c to cppc.c
From: Mario Limonciello <mario.limonciello@....com>
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 <perry.yuan@....com>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@....com>
Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
arch/x86/kernel/acpi/cppc.c | 16 ++++++++++++++++
arch/x86/kernel/cpu/amd.c | 16 ----------------
2 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/arch/x86/kernel/acpi/cppc.c b/arch/x86/kernel/acpi/cppc.c
index ff8f25faca3dd..7ec8f2ce859c8 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);
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 1e0fe5f8ab84e..015971adadfc7 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1190,22 +1190,6 @@ unsigned long amd_get_dr_addr_mask(unsigned int dr)
}
EXPORT_SYMBOL_GPL(amd_get_dr_addr_mask);
-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);
-
static void zenbleed_check_cpu(void *unused)
{
struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());
--
2.43.0
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