From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0998C127E18; Wed, 5 Feb 2025 13:47:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738763251; cv=none; b=s4px1kEwUHRo6grx1Cagb6xxftDrA5OUT3wpeGyZyCWCLkuZeeYv4RGxMH3iwaFMUxyKQqZQEbOCdydDi18RfqEjeLQqA7k8e/xl2qdR7wPEVPmoQ44TPb/SfqACIb+28EJ0cjy8H1JXybHvMnPL1aiwh614FbKXJ60IWZB8o5k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738763251; c=relaxed/simple; bh=sy6yzxcbmRApSus4DL5w8//cus6MsRDZXSuzt7eRKhE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hbn+qxSxvWU/lwDJpMsHvUoqJvYOLfkIJgOcedI75MPFCmwsVvy4LlwQ3wgtawg4qg3191INDKhR0xcPCzQbpHO+628CxOx8PEyzlfECYFm4Fs8ZLv6qU9YhzGuHF/wkdTCNtBjl1BwfCfm649eM71csORLya8gcFOi8//GaIag= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jsMEx47Y; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="jsMEx47Y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CF54DC4CED1; Wed, 5 Feb 2025 13:47:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1738763250; bh=sy6yzxcbmRApSus4DL5w8//cus6MsRDZXSuzt7eRKhE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jsMEx47YZoWuyGL8EPSGuAC1hhmjFv7+WmOTngv4ElAOawe0NygPq8SPbY3F+CLpV yW6kKXJNTyQ9LzyQmIw8+GrFjjgO7oq7RVq4Ok4POuJSlO0d02qYsip1BuE0PZmIUu K6v4DS/sV+rSeH+PJW+lKKY8hHQF6C14hNNZb5NY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Perry Yuan , Mario Limonciello , "Borislav Petkov (AMD)" , "Gautham R. Shenoy" , Sasha Levin Subject: [PATCH 6.6 020/393] x86/cpu: Enable SD_ASYM_PACKING for PKG domain on AMD Date: Wed, 5 Feb 2025 14:38:59 +0100 Message-ID: <20250205134421.073898318@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250205134420.279368572@linuxfoundation.org> References: <20250205134420.279368572@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Perry Yuan [ Upstream commit b0979e53645825a38f814ca5d3d09aed2745911d ] 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 Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Gautham R. Shenoy Link: https://lore.kernel.org/r/20241025171459.1093-4-mario.limonciello@amd.com Stable-dep-of: e1bc02646527 ("x86/topology: Use x86_sched_itmt_flags for PKG domain unconditionally") Signed-off-by: Sasha Levin --- 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 e4781e7496f6f..9150bd5147d01 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -606,8 +606,9 @@ 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; } -- 2.39.5