From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1B9B9D49C6A for ; Fri, 30 Jan 2026 07:43:26 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4f2Sg04LwWz2ydj; Fri, 30 Jan 2026 18:43:24 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=148.163.158.5 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1769759004; cv=none; b=MkB6CTmJ9vltSAcF59p1I/U6PMe6Ii7Iih836JsfcmzNFAg2Kngq95v+zyYaSBTOiogsWsQQqlWbXhpDrOAPdgyl3o4+yaNI2lQ1y21bEnvOPzBFRrHGUcheG6PbmAe94Z6rl3EKem9aFRh+zVfMBWHQhphGL+Ig9mlf2u2Tvp83Zu5dNx5RLDj64246CZz6f0YLNtHCqrYVgU+qMMU/o7HYoH605PYchX/LxOJyVvqg3vzIYr6ypamVgDrB1PjrgtsyZTfyXrhNl4KsamfajtYBiNSW3rL4kV1FW66wApu2nCh7+J0I7qJiFJLyb59ZFayuv/Op7WfZU1QVytcrXQ== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1769759004; c=relaxed/relaxed; bh=95K87GT0mkVJz9aYpJRbx8UZQXnKJ+WMM5rXV/1r+I8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=libMhKcUuU62uAwEWPJ+Z561TmuFpuhsiKFBUVdMQTE5ebzoOaeuk7KUnKbwv+GR9KRwMNkn4BmNST6ErQUkm8kKU0B6lb5uXfDOQJ1Rqc2mssKZdWv76Uh7xUAN3cDFXC11dndZA4YzV9cu/XocT9LH4pd8XXRMRnA++1GvvKupgZJWqRRKRLkDKIB9HtxOs+KrDvF/Y/Tt3Yv8N3J1sT2IUegRMQZcHBWgFjodYVW+SGi2Rsf0qbTKnzz+6P3l0AKTaIqsx3/c0v6ONYQekY5sIhIO+jsXaLbmlcmoAxqj6rH22sa/DnLbzfdTJQJYAEU3l2b7aM2IJgokvWFh8A== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=Pan6u5Pr; dkim-atps=neutral; spf=pass (client-ip=148.163.158.5; helo=mx0b-001b2d01.pphosted.com; envelope-from=venkat88@linux.ibm.com; receiver=lists.ozlabs.org) smtp.mailfrom=linux.ibm.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=Pan6u5Pr; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5; helo=mx0b-001b2d01.pphosted.com; envelope-from=venkat88@linux.ibm.com; receiver=lists.ozlabs.org) Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4f2Sfz3ynjz2xpg for ; Fri, 30 Jan 2026 18:43:22 +1100 (AEDT) Received: from pps.filterd (m0360072.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 60U2qKfA012067; Fri, 30 Jan 2026 07:41:44 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=95K87G T0mkVJz9aYpJRbx8UZQXnKJ+WMM5rXV/1r+I8=; b=Pan6u5Prc3pgc5LX9U5WRP svhugs17kFpsgGwcQ2yBwaWpEMCIE6fZ06pvKpvzyqiX1aHp7H8RHTeKjh+jbezd JRGF+bexsNzPuPvNfs9C4yDnb0fCs6FKxONHMNZbrTQzp8nZijWBDHqp4cvBxW/w 6w9pdknNIIZ1vtg7/UCNPQNI2ywsNMog+cLKm01dyy8pboBOft11lpVM29E0dnaF pVUmq/a5XYNw8wrtBJcgD7lvSdKkgFQ6+pWRTb8lviwJ9Pq0JYLGB9HuoFqOUVse bwKv3qk4lnJY0vHctphmMpWXpyRfkKbmdqtC/aBe0TCQ71+8ZQ/u10HiRodzXKIA == Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4bvnr6hmsv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 30 Jan 2026 07:41:44 +0000 (GMT) Received: from m0360072.ppops.net (m0360072.ppops.net [127.0.0.1]) by pps.reinject (8.18.1.12/8.18.0.8) with ESMTP id 60U7fhde011928; Fri, 30 Jan 2026 07:41:43 GMT Received: from ppma12.dal12v.mail.ibm.com (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4bvnr6hmst-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 30 Jan 2026 07:41:43 +0000 (GMT) Received: from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1]) by ppma12.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 60U60LTk031037; Fri, 30 Jan 2026 07:41:42 GMT Received: from smtprelay07.dal12v.mail.ibm.com ([172.16.1.9]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 4bw8dswdk0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 30 Jan 2026 07:41:42 +0000 Received: from smtpav04.dal12v.mail.ibm.com (smtpav04.dal12v.mail.ibm.com [10.241.53.103]) by smtprelay07.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 60U7ffsT19726970 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 30 Jan 2026 07:41:41 GMT Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4A62858056; Fri, 30 Jan 2026 07:41:41 +0000 (GMT) Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5814258052; Fri, 30 Jan 2026 07:41:35 +0000 (GMT) Received: from [9.61.240.86] (unknown [9.61.240.86]) by smtpav04.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 30 Jan 2026 07:41:35 +0000 (GMT) Message-ID: <94b9f14a-93f7-4d30-b22e-8a8aab8adb17@linux.ibm.com> Date: Fri, 30 Jan 2026 13:11:33 +0530 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] selftests/bpf: Add powerpc support for get_preempt_count() in selftest Content-Language: en-GB To: Saket Kumar Bhaskar , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, bpf@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: hbathini@linux.ibm.com, sachinpb@linux.ibm.com, andrii@kernel.org, eddyz87@gmail.com, ast@kernel.org, daniel@iogearbox.net, martin.lau@linux.dev, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, christophe.leroy@csgroup.eu, maddy@linux.ibm.com, mpe@ellerman.id.au References: <20260129054035.168078-1-skb99@linux.ibm.com> From: Venkat Rao Bagalkote In-Reply-To: <20260129054035.168078-1-skb99@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTMwMDA1NSBTYWx0ZWRfX4aRoRM6ToB9Z asD81+NT3htGMJSSIgQ+KNeeo4gCw8WSWe5cSGZM7f779f5XyxcgVOo1WX1+SB/L9Ptybjlzpkq CYktvsgvmFhQXsvgousEDtsnj3Um6NuE1PSVZTg/Joyic6xGhP9nPVF51TD9nxw1p/vXqfv0nMY gCpGQHjpG+MBinTMPxZs8YkDjg8PE7izLVTEwRcU+hB2RB6edI6icLY9qeuqhTqnYwSKm4TKoaf pXc8GOhJ7sQVO8Ud26JIaG5yLv+/XX7g3gSHEes/0Y95BxjYt6YRgzY5OLMmKyg4YnueT3CbTHb Ao8IMyqzOSttTf1VYKqbLjE/tZEwHJwUj5lI2AOtO0RXw6yjaxBE06URqEeDIojU59s6Lnzuyuw TYQSPxoQ9BauVwxMHYZZI8Wn3Uz18Q6IuPtwUZFzzzbP1VMavd33JpT1NBVuaUQh/0niW8J+Sme 0bOEBUfC+c/VA+kBGXQ== X-Proofpoint-GUID: cMUV8EMaqqGJO38IwVf2dzdE0AEwLKe3 X-Proofpoint-ORIG-GUID: 6TOvakzLfJS-x4Arnkt0u2kukkw6CH4y X-Authority-Analysis: v=2.4 cv=X+Vf6WTe c=1 sm=1 tr=0 ts=697c60b8 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VnNF1IyMAAAA:8 a=Adbp-aZMoRQ6sjKNSjAA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-01-29_03,2026-01-29_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1011 spamscore=0 adultscore=0 malwarescore=0 bulkscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2601150000 definitions=main-2601300055 On 29/01/26 11:10 am, Saket Kumar Bhaskar wrote: > get_preempt_count() is enabled to return preempt_count for powerpc, > so that bpf_in_interrupt()/get_preempt_count() works for powerpc as > well. > > Signed-off-by: Saket Kumar Bhaskar > --- > tools/testing/selftests/bpf/bpf_experimental.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h > index 2cd9165c7348..c3f039a878f3 100644 > --- a/tools/testing/selftests/bpf/bpf_experimental.h > +++ b/tools/testing/selftests/bpf/bpf_experimental.h > @@ -630,6 +630,8 @@ static inline int get_preempt_count(void) > return *(int *) bpf_this_cpu_ptr(&__preempt_count); > #elif defined(bpf_target_arm64) > return bpf_get_current_task_btf()->thread_info.preempt.count; > +#elif defined(bpf_target_powerpc) > + return bpf_get_current_task_btf()->thread_info.preempt_count; > #endif > return 0; > } Tested this patch by applying on mainline kernel and it passes the below selftest. ./test_progs -t timer_interrupt #481     timer_interrupt:OK Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED Please add below tag. Tested-by: Venkat Rao Bagalkote Regards, Venkat.