From nobody Sun Feb 8 05:37:00 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 6679E2D77E9; Sat, 10 Jan 2026 19:46:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768074388; cv=none; b=inWaW+sg++MVRXdQOYGHi6vyVQA1TjJw5a8dLZKWQe0mUPLLKHnPi31QaHoyiSm36k0xesMrpbOa2tUqVLNSuGAypewmXmw+EZPWnn3bqVoIwSUM3GI1BmnN1LsKDo+8PPWWitPoi+bfQFkNfsL9iXP1gKvhxg4Blk+hMdAmB+0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768074388; c=relaxed/simple; bh=TMkQ/qrbVQPQhbo36E+wi5zwnfCe1faJv+efrBXAGro=; h=Date:From:To:Subject:Cc:MIME-Version:Message-ID:Content-Type; b=psVOyYOrIABaGwA0KUUTOxI+z6QQXiZMvVAEuOBX7wWSk11ANk8TGNIS7Sg/KvGEdL1h8XWbIbyIPUMM1NQl/lbY7UYh598SyyoR0nEPKdJvmaENwJuwqMmTNYVKxZWuixtFrY3wm5IeK98lveMxe+ELmlMoiDmFwQoDHGvbt6Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=Rd7siM0n; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=TEJ1tTNE; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Rd7siM0n"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="TEJ1tTNE" Date: Sat, 10 Jan 2026 19:46:19 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1768074380; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=Jf0fAXSymIlIHo2kMayWo4JporAm1eqAtzf2vGuE5H8=; b=Rd7siM0nbfMmPncnT25JVQdcn17V4K9WyQWO+ky4eQGtzUyClaPQzoqFQKePBcP3HWRPe3 jBGAQ24RrvpdFQ1RAiADTB1sUTP5uRHRNJQLd59AYuto7Brs+M3TzsW/hU2xVyxlm/4er6 tAgw8O1H+TBU7MgDf2JF4iSX04jdP51CopjRJ38M2ua4hGypNPlmEuI1Diy6+rOEL34DvT whgr6QCX2bRG+cW5TeQ1A5dS4Q3lweEVHW9v1+fjv4hV0cN5JNQCjWqbTk0mFp7OqP4e0B PvhP2mbtSc9hNHtouWGx6s2JQU2I18Z+R3iA6QVVIcT7/+DKTF3MsZ27XAex0g== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1768074380; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=Jf0fAXSymIlIHo2kMayWo4JporAm1eqAtzf2vGuE5H8=; b=TEJ1tTNE2ZJy7W/gZDdI0hpaZmMa1DD1HxzVp+6sPjJ7BmIOdlZeCle6WhxIVlh8+CuNj0 RUd9PzbbzoHugjAQ== From: "tip-bot2 for Tony Luck" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: x86/cache] x86/resctrl: Refactor domain_remove_cpu_mon() ready for new domain types Cc: Tony Luck , "Borislav Petkov (AMD)" , Reinette Chatre , x86@kernel.org, linux-kernel@vger.kernel.org Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <176807437910.510.4044843748622184293.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the x86/cache branch of tip: Commit-ID: 6396fc5351ea9130a72f6a2fc58eb7298ce6c15a Gitweb: https://git.kernel.org/tip/6396fc5351ea9130a72f6a2fc58eb7298= ce6c15a Author: Tony Luck AuthorDate: Wed, 17 Dec 2025 09:20:50 -08:00 Committer: Borislav Petkov (AMD) CommitterDate: Sun, 04 Jan 2026 08:01:51 +01:00 x86/resctrl: Refactor domain_remove_cpu_mon() ready for new domain types New telemetry events will be associated with a new package scoped resource with a new domain structure. Refactor domain_remove_cpu_mon() so all the L3 domain processing is separate from the general domain action of clearing the CPU bit in the mask. Signed-off-by: Tony Luck Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Reinette Chatre Link: https://lore.kernel.org/20251217172121.12030-1-tony.luck@intel.com --- arch/x86/kernel/cpu/resctrl/core.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resct= rl/core.c index 2a568b3..49b133e 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -631,9 +631,7 @@ static void domain_remove_cpu_ctrl(int cpu, struct rdt_= resource *r) static void domain_remove_cpu_mon(int cpu, struct rdt_resource *r) { int id =3D get_domain_id_from_scope(cpu, r->mon_scope); - struct rdt_hw_mon_domain *hw_dom; struct rdt_domain_hdr *hdr; - struct rdt_mon_domain *d; =20 lockdep_assert_held(&domain_list_lock); =20 @@ -650,20 +648,29 @@ static void domain_remove_cpu_mon(int cpu, struct rdt= _resource *r) return; } =20 - if (!domain_header_is_valid(hdr, RESCTRL_MON_DOMAIN, r->rid)) + cpumask_clear_cpu(cpu, &hdr->cpu_mask); + if (!cpumask_empty(&hdr->cpu_mask)) return; =20 - d =3D container_of(hdr, struct rdt_mon_domain, hdr); - hw_dom =3D resctrl_to_arch_mon_dom(d); + switch (r->rid) { + case RDT_RESOURCE_L3: { + struct rdt_hw_mon_domain *hw_dom; + struct rdt_mon_domain *d; =20 - cpumask_clear_cpu(cpu, &d->hdr.cpu_mask); - if (cpumask_empty(&d->hdr.cpu_mask)) { + if (!domain_header_is_valid(hdr, RESCTRL_MON_DOMAIN, RDT_RESOURCE_L3)) + return; + + d =3D container_of(hdr, struct rdt_mon_domain, hdr); + hw_dom =3D resctrl_to_arch_mon_dom(d); resctrl_offline_mon_domain(r, d); - list_del_rcu(&d->hdr.list); + list_del_rcu(&hdr->list); synchronize_rcu(); mon_domain_free(hw_dom); - - return; + break; + } + default: + pr_warn_once("Unknown resource rid=3D%d\n", r->rid); + break; } } =20