From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 138E32206A8 for ; Fri, 11 Apr 2025 16:43:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744389819; cv=none; b=XBkFc9e8au7kqOtSis9oyUBfzn2dm85estbm2jHt8sOX+lmC/dj3beSFHOn/pmcWa0dw/GzmBTAPtrtux8B++tNtHiY9aJ1sFIVhO3i3oBWB3syfykht0Dw/VP8TBBOodqu7GXlpHiY8xciy9yyQvGKsdMafeGa6x8t4DFgktlY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744389819; c=relaxed/simple; bh=HdEwY/3aJcKODu8Sye0QSWuJDNw0sYQp5O2f978ge5Y=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=VeGTje4FO0WlQacA1ZCc3v1X7gHNGfv0DUFxAOBHaE169vq5uQCB/yREqIkizW89p/rNRtGm43t5EDnZa44ebW1F6PgqK25EcIiEx+u0XC+HxADVMW3TJ2PhM9tBTPPyjlD3eTEdaBhQ/BeKV/BOhbhEq9CdEaAChSISRuOTTc8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EB68219F0; Fri, 11 Apr 2025 09:43:36 -0700 (PDT) Received: from merodach.members.linode.com (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C65353F694; Fri, 11 Apr 2025 09:43:33 -0700 (PDT) From: James Morse To: x86@kernel.org, linux-kernel@vger.kernel.org Cc: Reinette Chatre , Thomas Gleixner , Ingo Molnar , Borislav Petkov , H Peter Anvin , Babu Moger , James Morse , shameerali.kolothum.thodi@huawei.com, D Scott Phillips OS , carl@os.amperecomputing.com, lcherian@marvell.com, bobo.shaobowang@huawei.com, tan.shaopeng@fujitsu.com, baolin.wang@linux.alibaba.com, Jamie Iles , Xin Hao , peternewman@google.com, dfustini@baylibre.com, amitsinght@marvell.com, David Hildenbrand , Rex Nie , Dave Martin , Koba Ko , Shanker Donthineni , fenghuay@nvidia.com, Shaopeng Tan , Babu Moger , Tony Luck Subject: [PATCH v8 07/21] x86/resctrl: Add end-marker to the resctrl_event_id enum Date: Fri, 11 Apr 2025 16:42:15 +0000 Message-Id: <20250411164229.23413-8-james.morse@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20250411164229.23413-1-james.morse@arm.com> References: <20250411164229.23413-1-james.morse@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The resctrl_event_id enum gives names to the counter event numbers on x86. These are used directly by resctrl. To allow the MPAM driver to keep an array of these the size of the enum needs to be known. Add a 'num_events' define which can be used to size an array. This isn't a member of the enum to avoid updating switch statements that would otherwise be missing a case. Signed-off-by: James Morse Tested-by: Carl Worth # arm64 Tested-by: Shaopeng Tan Tested-by: Peter Newman Tested-by: Amit Singh Tomar # arm64 Tested-by: Shanker Donthineni # arm64 Tested-by: Babu Moger Reviewed-by: Shaopeng Tan Reviewed-by: Tony Luck Reviewed-by: Reinette Chatre Reviewed-by: Fenghua Yu --- include/linux/resctrl_types.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/resctrl_types.h b/include/linux/resctrl_types.h index f26450b3326b..654323066174 100644 --- a/include/linux/resctrl_types.h +++ b/include/linux/resctrl_types.h @@ -51,4 +51,6 @@ enum resctrl_event_id { QOS_L3_MBM_LOCAL_EVENT_ID = 0x03, }; +#define QOS_NUM_EVENTS (QOS_L3_MBM_LOCAL_EVENT_ID + 1) + #endif /* __LINUX_RESCTRL_TYPES_H */ -- 2.20.1