From nobody Sat Sep 27 21:22:46 2025 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 E0A4C31DD94 for ; Thu, 25 Sep 2025 20:04:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758830648; cv=none; b=S+z54thm7HyuL0AOIpjXlXj+mRfrFYGpYLfUrpWLV3pEbrFs4hFVQ8WGX1j+K3DZ+gbg2o9dbPBcAQre0c2WkCdH37ijto3pydqtEeckNAtqLChO57t9qYvtjOPJrt5FF2KSen10P5cleG9a9oOMNMp+djVTL3jXF6ye/3rATjY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758830648; c=relaxed/simple; bh=vO9qC1IKNnoJg1FEY+mpdsCvg9yf+NzRFgSMvAtgDrQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dFbmuun/ZdZVDAxMdzkz9fZbx2xVBTBv8MpmcYiNyE607IO0mcVtfLfH73x7gWT2yRbkG8shZJN9yPutbQw5J91clcg2l2e4pqOZy3cXThA5PrZQhUeJJbMAMV/GqPrzQpvmjDwavE0O9KjHafLEq8+vZVwjqRFdVkmE3fk6Pgk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=TpvFK/dx; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="TpvFK/dx" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1758830647; x=1790366647; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vO9qC1IKNnoJg1FEY+mpdsCvg9yf+NzRFgSMvAtgDrQ=; b=TpvFK/dxXLHZa2MnHd+OEp3Q+cupDrNle2umwPzmrstwOCYjOF7Yy9wu MZ67jJFxfzv27thxJwmjBbMKbgq9OkOqS1b1jp18e/0wy0HxXXo5V6h0H TIIW1qbgyUQ1lE/G6Ah+yetNm+1MXRHBHhHTYDR7Zjuu+FPmyAjEKKopi 0mkG+QUU0V1YZZIVw81ri/ZcZM6cJmVJ2g8fpZu/KGIFHw9Ww0d1D4fWy MJk/syRY5rt1fsJQpmAX2uVSn7RnnihFzNzJ5E7EhUJr9mLk1G0q8qBbR ZEsbCKlx1tsiig/ZDowD/jHN+UxMDmH7Fhj/N5J62N/NnUJrY0ITAmJEH w==; X-CSE-ConnectionGUID: 1eu5srTrQfuO39wtIrGffw== X-CSE-MsgGUID: 1Ry08yMSStmRH0YOHDdx9g== X-IronPort-AV: E=McAfee;i="6800,10657,11531"; a="61074152" X-IronPort-AV: E=Sophos;i="6.17,312,1747724400"; d="scan'208";a="61074152" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2025 13:04:05 -0700 X-CSE-ConnectionGUID: 3PCIaxO9QGGCUwWkxoP4gg== X-CSE-MsgGUID: wYgKQ2NYSz6NZI0hO6HBUg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,293,1751266800"; d="scan'208";a="177003603" Received: from inaky-mobl1.amr.corp.intel.com (HELO agluck-desk3.intel.com) ([10.124.220.206]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2025 13:04:05 -0700 From: Tony Luck To: Fenghua Yu , Reinette Chatre , Maciej Wieczor-Retman , Peter Newman , James Morse , Babu Moger , Drew Fustini , Dave Martin , Chen Yu Cc: x86@kernel.org, linux-kernel@vger.kernel.org, patches@lists.linux.dev, Tony Luck Subject: [PATCH v11 03/31] x86,fs/resctrl: Refactor domain_remove_cpu_mon() ready for new domain types Date: Thu, 25 Sep 2025 13:02:57 -0700 Message-ID: <20250925200328.64155-4-tony.luck@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250925200328.64155-1-tony.luck@intel.com> References: <20250925200328.64155-1-tony.luck@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" New telemetry events will be associated with a new package scoped resource with new domain structures. Refactor domain_remove_cpu_mon() so all the L3 processing is separate from general actions of clearing the CPU bit in the mask. Signed-off-by: Tony Luck --- arch/x86/kernel/cpu/resctrl/core.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resct= rl/core.c index d422ae3b7ed6..b471918bced6 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -645,20 +645,25 @@ 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: + if (!domain_header_is_valid(hdr, RESCTRL_MON_DOMAIN, RDT_RESOURCE_L3)) + return; =20 - cpumask_clear_cpu(cpu, &d->hdr.cpu_mask); - if (cpumask_empty(&d->hdr.cpu_mask)) { + 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 --=20 2.51.0