mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Mario Limonciello <mario.limonciello@amd.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	"maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)"
	<x86@kernel.org>, "H . Peter Anvin" <hpa@zytor.com>,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	"Gautham R . Shenoy" <gautham.shenoy@amd.com>,
	Mario Limonciello <mario.limonciello@amd.com>,
	Perry Yuan <perry.yuan@amd.com>,
	Brijesh Singh <brijesh.singh@amd.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Li RongQing <lirongqing@baidu.com>,
	"open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)"
	<linux-kernel@vger.kernel.org>,
	"open list:ACPI" <linux-acpi@vger.kernel.org>,
	"open list:AMD PSTATE DRIVER" <linux-pm@vger.kernel.org>,
	Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Subject: [PATCH v2 3/5] x86/cpu: Enable SD_ASYM_PACKING for PKG Domain on AMD Processors
Date: Mon, 21 Oct 2024 22:46:06 -0500	[thread overview]
Message-ID: <20241022034608.32396-4-mario.limonciello@amd.com> (raw)
In-Reply-To: <20241022034608.32396-1-mario.limonciello@amd.com>

From: Perry Yuan <perry.yuan@amd.com>

Enable the SD_ASYM_PACKING domain flag for the PKG domain on AMD
heterogeneous processors.
This flag is beneficial for processors with one or more CCDs and
relies on x86_sched_itmt_flags().

Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Co-developed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 arch/x86/kernel/smpboot.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 766f092dab80b..b5a8f0891135b 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -497,8 +497,9 @@ static int x86_cluster_flags(void)
 
 static int x86_die_flags(void)
 {
-	if (cpu_feature_enabled(X86_FEATURE_HYBRID_CPU))
-	       return x86_sched_itmt_flags();
+	if (cpu_feature_enabled(X86_FEATURE_HYBRID_CPU) ||
+	    cpu_feature_enabled(X86_FEATURE_AMD_HETEROGENEOUS_CORES))
+		return x86_sched_itmt_flags();
 
 	return 0;
 }
-- 
2.43.0


  parent reply	other threads:[~2024-10-22  3:46 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-22  3:46 [PATCH v2 0/5] x86 Heterogeneous design identification Mario Limonciello
2024-10-22  3:46 ` [PATCH v2 1/5] x86/cpufeatures: Rename X86_FEATURE_FAST_CPPC to have AMD prefix Mario Limonciello
2024-10-22  3:46 ` [PATCH v2 2/5] x86/cpufeatures: Add feature bits for AMD heterogeneous processor Mario Limonciello
2024-10-22  3:46 ` Mario Limonciello [this message]
2024-10-22  9:20   ` [PATCH v2 3/5] x86/cpu: Enable SD_ASYM_PACKING for PKG Domain on AMD Processors Gautham R. Shenoy
2024-10-22  3:46 ` [PATCH v2 4/5] x86/cpu: Add CPU type to struct cpuinfo_topology Mario Limonciello
2024-10-22 11:57   ` Borislav Petkov
2024-10-22 12:03     ` Borislav Petkov
2024-10-22 15:41       ` Mario Limonciello
2024-10-22 16:03     ` Dave Hansen
2024-10-22 16:13       ` Mario Limonciello
2024-10-22 17:09         ` Dave Hansen
2024-10-23  3:58         ` Pawan Gupta
2024-10-23  4:40     ` Pawan Gupta
2024-10-23 15:59       ` Borislav Petkov
2024-10-22  3:46 ` [PATCH v2 5/5] x86/amd: Use heterogeneous core topology for identifying boost numerator Mario Limonciello

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20241022034608.32396-4-mario.limonciello@amd.com \
    --to=mario.limonciello@amd.com \
    --cc=bp@alien8.de \
    --cc=brijesh.singh@amd.com \
    --cc=dave.hansen@linux.intel.com \
    --cc=gautham.shenoy@amd.com \
    --cc=hpa@zytor.com \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=lirongqing@baidu.com \
    --cc=mingo@redhat.com \
    --cc=pawan.kumar.gupta@linux.intel.com \
    --cc=perry.yuan@amd.com \
    --cc=peterz@infradead.org \
    --cc=rafael@kernel.org \
    --cc=tglx@linutronix.de \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®