[1/4] x86/cpufeatures: Rename X86_FEATURE_FAST_CPPC to have AMD prefix

Commit Message

Mario Limonciello Oct. 21, 2024, 5:55 p.m. UTC

This feature is an AMD unique feature of some processors, so put
AMD into the name.

Signed-off-by: Mario Limonciello <[e-mail]>
---
 arch/x86/include/asm/cpufeatures.h       | 2 +-
 arch/x86/kernel/cpu/scattered.c          | 2 +-
 drivers/cpufreq/amd-pstate.c             | 2 +-
 tools/arch/x86/include/asm/cpufeatures.h | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

Patch

diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index cea1ed82aeb48..424bb7ae8914a 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -472,7 +472,7 @@ 
 #define X86_FEATURE_BHI_CTRL		(21*32+ 2) /* BHI_DIS_S HW control available */
 #define X86_FEATURE_CLEAR_BHB_HW	(21*32+ 3) /* BHI_DIS_S HW control enabled */
 #define X86_FEATURE_CLEAR_BHB_LOOP_ON_VMEXIT (21*32+ 4) /* Clear branch history at vmexit using SW loop */
-#define X86_FEATURE_FAST_CPPC		(21*32 + 5) /* AMD Fast CPPC */
+#define X86_FEATURE_AMD_FAST_CPPC		(21*32 + 5) /* Fast CPPC */
 #define X86_FEATURE_HETERO_CORE_TOPOLOGY	(21*32 + 6) /* Heterogeneous Core Topology */
 
 /*
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index 3bba55323163b..d7f2c19abce33 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -45,7 +45,7 @@  static const struct cpuid_bit cpuid_bits[] = {
 	{ X86_FEATURE_HW_PSTATE,	CPUID_EDX,  7, 0x80000007, 0 },
 	{ X86_FEATURE_CPB,		CPUID_EDX,  9, 0x80000007, 0 },
 	{ X86_FEATURE_PROC_FEEDBACK,    CPUID_EDX, 11, 0x80000007, 0 },
-	{ X86_FEATURE_FAST_CPPC, 	CPUID_EDX, 15, 0x80000007, 0 },
+	{ X86_FEATURE_AMD_FAST_CPPC,	CPUID_EDX, 15, 0x80000007, 0 },
 	{ X86_FEATURE_MBA,		CPUID_EBX,  6, 0x80000008, 0 },
 	{ X86_FEATURE_SMBA,		CPUID_EBX,  2, 0x80000020, 0 },
 	{ X86_FEATURE_BMEC,		CPUID_EBX,  3, 0x80000020, 0 },
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index 3c14962adeb22..2670bdcad6eda 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -844,7 +844,7 @@  static u32 amd_pstate_get_transition_delay_us(unsigned int cpu)
 
 	transition_delay_ns = cppc_get_transition_latency(cpu);
 	if (transition_delay_ns == CPUFREQ_ETERNAL) {
-		if (cpu_feature_enabled(X86_FEATURE_FAST_CPPC))
+		if (cpu_feature_enabled(X86_FEATURE_AMD_FAST_CPPC))
 			return AMD_PSTATE_FAST_CPPC_TRANSITION_DELAY;
 		else
 			return AMD_PSTATE_TRANSITION_DELAY;
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index dd4682857c120..23698d0f4bb47 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -472,7 +472,7 @@ 
 #define X86_FEATURE_BHI_CTRL		(21*32+ 2) /* BHI_DIS_S HW control available */
 #define X86_FEATURE_CLEAR_BHB_HW	(21*32+ 3) /* BHI_DIS_S HW control enabled */
 #define X86_FEATURE_CLEAR_BHB_LOOP_ON_VMEXIT (21*32+ 4) /* Clear branch history at vmexit using SW loop */
-#define X86_FEATURE_FAST_CPPC		(21*32 + 5) /* AMD Fast CPPC */
+#define X86_FEATURE_AMD_FAST_CPPC		(21*32 + 5) /* AMD Fast CPPC */
 
 /*
  * BUG word(s)