From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=205.220.180.131 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794700215; b=FlwtNuy+V2za+LMSHn70skWzpWkUONaf+hxrB9unE1Roe+gvhkRXshKgyB88AAPbX7BF 3Mp+3vKHopLn0+Tjlgc5/pZMMwlZXMfMTGwu25vY9rOhc7mEQ2m9f8UOoERKgw9ekN0Hn WhAw3cEVzr1dJh3Tv1tIghXab9gcKlhNxKuLTMzd4OKr1a1NkE3gLOorSvzogqPWu2W++ ooxAgZFKGicSaGlre88HCamjs5pJQgrQDo5qRfKR1HkQzjEq0z50yvei3lcqswc5pNEaa K0o/71hMKlaWnooSzEbdF46Ik0kc+9ex1IBphCDNjk9NV05Im8U/lVkfqJEdn3yZ80Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794700215; h=DMARC-Filter:Received:DKIM-Signature:Received:Received: DKIM-Signature:X-Google-DKIM-Signature:X-Gm-Message-State:X-Gm-Gg: X-Received:X-Received:Received:From:To:Cc:Subject:Date:Message-ID: X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding:X-Proofpoint-ORIG-GUID: X-Proofpoint-Spam-Details-Enc:X-Authority-Analysis:X-Proofpoint-GUID: X-Proofpoint-Spam-Info:X-Proofpoint-Virus-Version: X-Proofpoint-Spam-Details; bh=SHz7obOecCms5SYEVnrbzhdor6lxm5HlXrthgoBerCE=; b=YEJD8XhX+o39B0frVUC5vEI/XXIpHnLUhKVGj/0tiz+EZ3aPoma+ujQ5A0xBzZeotE5N 8YNfdJIR66Wh//G3jAMuAau/z/izuwJgFLKXQmIIYrrblHVH66rHtwokGOsg9kcDg02Hx sABqbPegfKrhGf4GeFZ4HHI+g69MI3XxxNaTxMImLgvEADTVNgHMOiBptqniLTLBcRioc 3u809msjyHb+gzelldmGTntBGEm94hDoiwbOB34C7NhcdxrrieaqBwb1O+1IgJ6DBtu0F WsNpf3NFnIXP1d8DdV2pK+iY/oHWfW8AWVJxPMm18JZ3u50hyS0OF/40kVPffiPPfig== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=ALMKIsIq; dkim=pass header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.a=rsa-sha256 header.s=google header.b=IGrtBH3h; arc=none smtp.remote-ip=205.220.180.131 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4C15B606A88B for ; Sat, 14 Nov 2026 23:50:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 4C15B606A88B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=ALMKIsIq; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.a=rsa-sha256 header.s=google header.b=IGrtBH3h Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6AELHIlo1564386 for ; Sat, 14 Nov 2026 23:50:14 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=qcppdkim1; bh=SHz7obOecCm s5SYEVnrbzhdor6lxm5HlXrthgoBerCE=; b=ALMKIsIqCdJo0yIZO9Br3MlT8LE solRjI/+vbvXjtY7mGMDdfrVG86VTTfsHVBJpa8g4vbZj5UOzkFmg50VbNYDbfGM 0GwsFjRDtPVOxLKCMjH+XkS/yClPC/B5b2uxaPofECLxrjsybjE5fbGOwfE41w2D mqewlec+MtzV9QutsK8HwpHFk0TG4+2JBBMFbIANj2lBT10GTGJLDVBqbh4dh8TL WHXQXvdrDS6+KzPX2E96TSte6PeWIocc/p+737k55lYvC+oInYTD8G961+sZRgkS gN0Y3CKTXz8m9kz+vVbIyjjBlYscM9JX2aMGfR+YbV0o28FHSueNecu8iOg== Received: from mail-dy1-f197.google.com (mail-dy1-f197.google.com [74.125.82.197]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4hxhmahv5n-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Sat, 14 Nov 2026 23:50:13 +0000 (GMT) Received: by mail-dy1-f197.google.com with SMTP id 5a478bee46e88-36de26cb4b3so2776689eec.1 for ; Sat, 14 Nov 2026 15:50:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1794700213; x=1795305013; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=SHz7obOecCms5SYEVnrbzhdor6lxm5HlXrthgoBerCE=; b=IGrtBH3hIGdvgBpHQ/HMlkB9/QSjVWFenn4D0j9du4ySSS2qChAH8mX9L2tFmfJwbf suPAQkiTU+WIG8eKxUFsR9x4n+4p0bD2tBuN9//nxXYVy/e4kiL/CnuJvSfmFjYMsExr PwU3A7XA7SXo9hjYX/0cgv4hlzew4wlmdz/xfBQpXZG8tWuuwEMbNSf7xjZ+KhoqL576 1jA8Aw37OE7cEfeNytI9i1YsjkIzfNZJSGAqDZDjON+7dafWT8Pek4Krwt4xDY4BDxvM m3THWVc9N+TTyZUrtokVCoJoz6XpkAk7a6YCy+M65cEO0i/o6mc4UewsINqNC1nyppwo d/EA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794700213; x=1795305013; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=SHz7obOecCms5SYEVnrbzhdor6lxm5HlXrthgoBerCE=; b=YWyQmwYBMvYihg6MJ/7P69mmxNcd2Jw8F8XKLKoX1KsOTZcHqYO/2AUNRYAh2v9q6l yP6aTkP3wzDAX2MEZoUd8rM/qpRy88yEuR2dvloHHumEp6JiiaqRJs3mLJMvC05chwvi WrztUAVaKVIDWFPkS2sqkSdbi6U7ZIcNVUfCgkf0l2J1GJuPHgOtzoobDQ8R5HOU/yIS u9VjpDwpvolxRihm/7TLqrxuYj4zS3cSm/Y4QxMJkJwewoRLNxCPV2RH3Nmb/6OCvJKE QnBTB8i1iWWXi7R7nhLCQrdxa4ECXCUjuOonGjf8go97Gh2wJnf+0xBrn7m0n25RPIS/ 5x0Q== X-Gm-Message-State: APuU4Z86lF9+0Lii9DwrSjulAc0Q96rnkeKrWuOZHkOMvtCqFTD8q0Hw fglNeCyn2bLPDZwZ8BisoH6XF+V182Sri/lBxE9/BvAry8A/8a4qUWrwN0C39dJf2NEx/pn1xxt Co5tP7hh8NG/eCq0cpuCzMoj48i+YjtPWya5CMNRU/6Lagml0yYc4qHJITHnizcH73mw= X-Gm-Gg: AYBFou1sAG9Ef1y2kykwl9vXk30OTmxnofvsUIW85GtymtBtHGadqzvmw4xRHoEJMRk pN7Xal0kIQaCLIGYB2R9yVFhGjGGd6ekHRuRVyI49h3Gmlb3/u9708cuX2HnXrcnrTZpGwNtxeL gQr/Fu6XpbN6MgH5eSlwGt2I9cmgbINAQUHqUc5jRjaLcWQBsYUYOqdFWeLm482trv7fk8wYDpU 1Vsupy6FnxoQO4FjJcKZYxdggNKmvo7lLE3lyU15PyuGWDQgXGRK5u4XBgEJgXf+rnhKIGx91tp 0qr7tM+h0FKV31zKDWFEKqcaGR/GJvoZTKnSh9AbA68mOc1qjFtVjVfbtFa6Pxq+swTkr1nDi3q SPDRTh+E7CtzWMEJMEkNIWDJa5ES1IuyiT+ODonWxuvVF1Qf9OZZWol001r9w8zpupTVW1pLfms 3E+1UfmIicZ9p4PjOrPBuqmQ== X-Received: by 2002:a05:7300:fd05:b0:35d:4e41:d2c2 with SMTP id 5a478bee46e88-37968b848d9mr9239202eec.33.1794700212937; Sat, 14 Nov 2026 15:50:12 -0800 (PST) X-Received: by 2002:a05:7300:fd05:b0:35d:4e41:d2c2 with SMTP id 5a478bee46e88-37968b848d9mr9239171eec.33.1794700212458; Sat, 14 Nov 2026 15:50:12 -0800 (PST) Received: from hu-ashoraj-lv.qualcomm.com (Global_NAT1.qualcomm.com. [129.46.96.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-379563df84fsm39456313eec.20.2026.11.14.15.50.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 Nov 2026 15:50:09 -0800 (PST) From: Ashok Raj To: "Linux ARM Kernel" Cc: "Linux Kernel Mailing List" , "Vladimir Murzin" , "Catalin Marinas" , "Will Deacon" , "Mark Rutland" , "Lorenzo Pieralisi" , "Jinjie Ruan" , "Liaochang" , "Marc Zyngier" , "Radu Rendec" , "Jonathan Cameron" , "Ashok Raj" , "Sathvika Vasireddy" Subject: [RFC PATCH v1 2/2] genirq/proc: Show NMI interrupt counts in /proc/interrupts Date: Sat, 14 Nov 2026 15:49:46 -0800 Message-ID: <20261114234946.818072-3-ashok.raj@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261114234946.818072-1-ashok.raj@oss.qualcomm.com> References: <20261114234946.818072-1-ashok.raj@oss.qualcomm.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: k9Ll0DrM9F1ziN0ziSinIVorT4gFTmNZ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTE0MDA5NCBTYWx0ZWRfXykKkqIOZqVmU lQaORyKhgLaXta3ebhbCns07wkZbHlKKD51sGwwdd31UDmafwOelgR0vLHTlR6xyfVdWFRQOqiZ Q4OtupVaHu7dWKgbHvgQ4HWR09gom9HmrdWFuraYk1BDhn+mcBNsnZ2JjWVbCJTwyhqF++lRTBT ebK7eBoktlMmchxEVsVmaBVR7eCdn2Uf0LC4Ve/zrVTHqmWkqEwy75vQsyrMBKiadfetLsSV3FY OC96RK4/DOJkFzrXGO6NPyhys6sGB88HwCp75jnX+caV1192I0GgLSTp2SUtkcAdxpoEzIaVDkH hJ2D8YTZanZ6V60ztHICsSjMfQ51B0SIOiOU1dVGWORk0TYYIAoe9bEU1bY55pPVEHabnisk9jx P2eLxuMtEXzpi9QfU/DsWnFUEO9uMLaM3WDqRxyo+iseXbHul9IX45iQDTAS8yCnXnfft8Obr9W vuS1S0OGEMwEtaWj9qw== X-Authority-Analysis: v=2.4 cv=NdhzRGD4 c=1 sm=1 tr=0 ts=6af8f3b5 cx=c_pps a=Uww141gWH0fZj/3QKPojxA==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=wU795yvDvLEqae5DVKgA:9 a=PxkB5W3o20Ba91AHUih5:22 X-Proofpoint-GUID: k9Ll0DrM9F1ziN0ziSinIVorT4gFTmNZ X-Proofpoint-Spam-Info: AW1haW4tMjYxMTE0MDA5NCBTYWx0ZWRfX+o9GEpkadfSy OSC8EnO11Nn+JOBNaaZ1R07+9ExXtV9iKsvMz2M/B21YaH5dLRl6u4FQ5y3/nDo5oKUWCaWOG0v a448PJAARINknEd7tJBqRBWMbVcnZv0= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-14_06,2026-11-11_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 clxscore=1015 adultscore=0 lowpriorityscore=0 spamscore=0 impostorscore=0 priorityscore=1501 bulkscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2611040001 definitions=main-2611140094 NMI flow handlers update only the per-CPU counters because irq_desc::tot_count is not safe to update in NMI context. As a result, /proc/interrupts shows zero counts for a non-per-CPU NMI. Display the per-CPU counters for NMI descriptors, matching kstat_irqs_desc(). Signed-off-by: Ashok Raj --- kernel/irq/proc.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 0c0df16de581..490b2df9c105 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -559,11 +559,12 @@ static int irq_seq_show(struct seq_file *p, void *v) seq_putc(p, ':'); /* - * Always output per CPU interrupts. Output device interrupts only when - * desc::tot_count is not zero. + * Always output per CPU interrupts and NMIs, which only account in + * per-CPU counters. Output device interrupts only when desc::tot_count + * is not zero. */ if (irq_settings_is_per_cpu(desc) || irq_settings_is_per_cpu_devid(desc) || - data_race(desc->tot_count)) + irq_is_nmi(desc) || data_race(desc->tot_count)) irq_proc_emit_counts(p, &desc->kstat_irqs->cnt); else irq_proc_emit_zero_counts(p, num_online_cpus()); -- 2.43.0