From nobody Sun Oct 5 01:47:29 2025 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 153A72E0915 for ; Mon, 11 Aug 2025 18:17:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754936251; cv=none; b=DviuKtKSa/RI9lQSjgb+8wiKq0YoIzH8w0AWRjNnMbFygSGacz9lURiHwXNrbUjEkeI+2/RBTMZkYxQNyWNypuRURG8M2Qd25fctpEhZ9SHXQd4D5ZOts8Nv/CnPafKlSmTjxxxgOzmJ+xA0R9CZhulsI9F/13tKL//RaR4wdUo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754936251; c=relaxed/simple; bh=cuuTo5sNTseROX6Fc5025NznVenN1rKXjVTNonpnXq0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tbJHHcTBLizUuI/KXfNHm6WWz/PSL6zQVB4sJuaYFAVner/WIZX232rRnco0pp+9i2xXFA8HX2KTGS0UCjItNkon1pTI+bdF1QhbC1S9RMYeLwBSSkSweAXWKUO7prei9qRvlMhO7a0IOvndwGjr4N/5FdOrEPbtWj+zX6Bpyc0= 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=CkzKyMQD; arc=none smtp.client-ip=198.175.65.13 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="CkzKyMQD" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1754936251; x=1786472251; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=cuuTo5sNTseROX6Fc5025NznVenN1rKXjVTNonpnXq0=; b=CkzKyMQDGovH0QhHn1CLQzWrLTHNXRFLfRTlED9Sc+60seHWtEC3ayjW KQIGVCujVIsfkUx5xkRZLcdwwRFXGHPeyqTJhgMYsyWAwIdGkJg06HI8s mE7y4bG4p+t5gHC7nqy0B1LQrvN2DgaQOnuQy06xvh9w/h3WJbs4BAX0P gdcfz2hbyoeXtqZVnZ/q3NbA/S/nMI5XRHN2isdUe2PKVKHydw9pd46qF 3J4LEAdttxz1baxNUeFszwK4E6T6Ke7QPAYpASi2WsYtuMAhe291t2eJq Mlj0Hpnso83ri3cZRgt8Letm3pzdCmUbeCGzCGAMm/LE2Zi0XPvdAWBz7 A==; X-CSE-ConnectionGUID: EO2JgOUOQKys45u3T2fJLw== X-CSE-MsgGUID: BiY4K1oySCKjDpXt7T7TYQ== X-IronPort-AV: E=McAfee;i="6800,10657,11518"; a="68277341" X-IronPort-AV: E=Sophos;i="6.17,278,1747724400"; d="scan'208";a="68277341" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Aug 2025 11:17:26 -0700 X-CSE-ConnectionGUID: s5kNTx0gTFOFvhSLU8COdg== X-CSE-MsgGUID: RSKYOJVcS+OIca5O2wX+Yg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,278,1747724400"; d="scan'208";a="196825618" Received: from puneetse-mobl.amr.corp.intel.com (HELO agluck-desk3.home.arpa) ([10.124.221.229]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Aug 2025 11:17:22 -0700 From: Tony Luck To: Fenghua Yu , Reinette Chatre , Maciej Wieczor-Retman , Peter Newman , James Morse , Babu Moger , Drew Fustini , Dave Martin , Anil Keshavamurthy , Chen Yu Cc: x86@kernel.org, linux-kernel@vger.kernel.org, patches@lists.linux.dev, Tony Luck Subject: [PATCH v8 03/32] x86/resctrl: Remove 'rdt_mon_features' global variable Date: Mon, 11 Aug 2025 11:16:37 -0700 Message-ID: <20250811181709.6241-4-tony.luck@intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250811181709.6241-1-tony.luck@intel.com> References: <20250811181709.6241-1-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" rdt_mon_features is used as a bitmask of enabled monitor events. A monitor event's status is now maintained in mon_evt::enabled with all monitor events' mon_evt structures found in the filesystem's mon_event_all[] array. Remove the remaining uses of rdt_mon_features. Signed-off-by: Tony Luck Reviewed-by: Reinette Chatre --- arch/x86/include/asm/resctrl.h | 1 - arch/x86/kernel/cpu/resctrl/core.c | 9 +++++---- arch/x86/kernel/cpu/resctrl/monitor.c | 5 ----- 3 files changed, 5 insertions(+), 10 deletions(-) diff --git a/arch/x86/include/asm/resctrl.h b/arch/x86/include/asm/resctrl.h index b1dd5d6b87db..575f8408a9e7 100644 --- a/arch/x86/include/asm/resctrl.h +++ b/arch/x86/include/asm/resctrl.h @@ -44,7 +44,6 @@ DECLARE_PER_CPU(struct resctrl_pqr_state, pqr_state); =20 extern bool rdt_alloc_capable; extern bool rdt_mon_capable; -extern unsigned int rdt_mon_features; =20 DECLARE_STATIC_KEY_FALSE(rdt_enable_key); DECLARE_STATIC_KEY_FALSE(rdt_alloc_enable_key); diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resct= rl/core.c index 1a319ce9328c..5d14f9a14eda 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -863,21 +863,22 @@ static __init bool get_rdt_alloc_resources(void) static __init bool get_rdt_mon_resources(void) { struct rdt_resource *r =3D &rdt_resources_all[RDT_RESOURCE_L3].r_resctrl; + bool ret =3D false; =20 if (rdt_cpu_has(X86_FEATURE_CQM_OCCUP_LLC)) { resctrl_enable_mon_event(QOS_L3_OCCUP_EVENT_ID); - rdt_mon_features |=3D (1 << QOS_L3_OCCUP_EVENT_ID); + ret =3D true; } if (rdt_cpu_has(X86_FEATURE_CQM_MBM_TOTAL)) { resctrl_enable_mon_event(QOS_L3_MBM_TOTAL_EVENT_ID); - rdt_mon_features |=3D (1 << QOS_L3_MBM_TOTAL_EVENT_ID); + ret =3D true; } if (rdt_cpu_has(X86_FEATURE_CQM_MBM_LOCAL)) { resctrl_enable_mon_event(QOS_L3_MBM_LOCAL_EVENT_ID); - rdt_mon_features |=3D (1 << QOS_L3_MBM_LOCAL_EVENT_ID); + ret =3D true; } =20 - if (!rdt_mon_features) + if (!ret) return false; =20 return !rdt_get_mon_l3_config(r); diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/re= sctrl/monitor.c index 61d38517e2bf..07f8ab097cbe 100644 --- a/arch/x86/kernel/cpu/resctrl/monitor.c +++ b/arch/x86/kernel/cpu/resctrl/monitor.c @@ -31,11 +31,6 @@ */ bool rdt_mon_capable; =20 -/* - * Global to indicate which monitoring events are enabled. - */ -unsigned int rdt_mon_features; - #define CF(cf) ((unsigned long)(1048576 * (cf) + 0.5)) =20 static int snc_nodes_per_l3_cache =3D 1; --=20 2.50.1