33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
From 5bd4c7b75f5588eb81bee35179569e27a4e164e4 Mon Sep 17 00:00:00 2001
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From: Perry Yuan <perry.yuan@amd.com>
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Date: Fri, 25 Oct 2024 12:14:57 -0500
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Subject: x86/cpu: Enable SD_ASYM_PACKING for PKG Domain on AMD Processors
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Enable the SD_ASYM_PACKING domain flag for the PKG domain on AMD
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heterogeneous processors.
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This flag is beneficial for processors with one or more CCDs and
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relies on x86_sched_itmt_flags().
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Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
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Signed-off-by: Perry Yuan <perry.yuan@amd.com>
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Co-developed-by: Mario Limonciello <mario.limonciello@amd.com>
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Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
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---
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arch/x86/kernel/smpboot.c | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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--- a/arch/x86/kernel/smpboot.c
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+++ b/arch/x86/kernel/smpboot.c
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@@ -497,8 +497,9 @@ static int x86_cluster_flags(void)
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static int x86_die_flags(void)
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{
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- if (cpu_feature_enabled(X86_FEATURE_HYBRID_CPU))
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- return x86_sched_itmt_flags();
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+ if (cpu_feature_enabled(X86_FEATURE_HYBRID_CPU) ||
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+ cpu_feature_enabled(X86_FEATURE_AMD_HETEROGENEOUS_CORES))
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+ return x86_sched_itmt_flags();
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return 0;
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}
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