linux-kernel - [PATCH v3 05/10] x86/cpu: Remove get_this_hybrid_cpu

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Message-ID: <20240815-add-cpu-type-v3-5-234162352057@linux.intel.com>
Date: Thu, 15 Aug 2024 21:06:39 -0700
From: Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
To: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org
Cc: daniel.sneddon@...ux.intel.com, tony.luck@...el.com,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-perf-users@...r.kernel.org,
	Josh Poimboeuf <jpoimboe@...nel.org>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>,
	"Liang, Kan" <kan.liang@...ux.intel.com>,
	Andrew Cooper <andrew.cooper3@...rix.com>,
	Brice Goglin <brice.goglin@...il.com>,
	Mario Limonciello <mario.limonciello@....com>,
	Perry Yuan <Perry.Yuan@....com>,
	Dapeng Mi <dapeng1.mi@...ux.intel.com>
Subject: [PATCH v3 05/10] x86/cpu: Remove get_this_hybrid_cpu_type()

Because calls to get_this_hybrid_cpu_type() were replaced by
topology_hw_cpu_type().

Signed-off-by: Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
---
 arch/x86/include/asm/cpu.h  |  6 ------
 arch/x86/kernel/cpu/intel.c | 16 ----------------
 2 files changed, 22 deletions(-)

diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h
index f480c36a07b7..026151d9da50 100644
--- a/arch/x86/include/asm/cpu.h
+++ b/arch/x86/include/asm/cpu.h
@@ -31,7 +31,6 @@ extern void __init sld_setup(struct cpuinfo_x86 *c);
 extern bool handle_user_split_lock(struct pt_regs *regs, long error_code);
 extern bool handle_guest_split_lock(unsigned long ip);
 extern void handle_bus_lock(struct pt_regs *regs);
-u8 get_this_hybrid_cpu_type(void);
 u32 intel_hw_native_model_id(struct cpuinfo_x86 *c);
 #else
 static inline void __init sld_setup(struct cpuinfo_x86 *c) {}
@@ -47,11 +46,6 @@ static inline bool handle_guest_split_lock(unsigned long ip)
 
 static inline void handle_bus_lock(struct pt_regs *regs) {}
 
-static inline u8 get_this_hybrid_cpu_type(void)
-{
-	return 0;
-}
-
 static u32 intel_hw_native_model_id(struct cpuinfo_x86 *c)
 {
 	return 0;
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index e47a53280369..eba7a93f4bdf 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -1282,22 +1282,6 @@ void __init sld_setup(struct cpuinfo_x86 *c)
 	sld_state_show();
 }
 
-#define X86_HYBRID_CPU_TYPE_ID_SHIFT	24
-
-/**
- * get_this_hybrid_cpu_type() - Get the type of this hybrid CPU
- *
- * Returns the CPU type [31:24] (i.e., Atom or Core) of a CPU in
- * a hybrid processor. If the processor is not hybrid, returns 0.
- */
-u8 get_this_hybrid_cpu_type(void)
-{
-	if (!cpu_feature_enabled(X86_FEATURE_HYBRID_CPU))
-		return 0;
-
-	return cpuid_eax(0x0000001a) >> X86_HYBRID_CPU_TYPE_ID_SHIFT;
-}
-
 u32 intel_hw_native_model_id(struct cpuinfo_x86 *c)
 {
 	return c->topo.intel_core_native_model_id;

-- 
2.34.1