From nobody Thu Dec 18 20:33:51 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98D3BCA0EC3 for ; Tue, 12 Sep 2023 04:03:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236301AbjILEDz (ORCPT ); Tue, 12 Sep 2023 00:03:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57710 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235326AbjILEDw (ORCPT ); Tue, 12 Sep 2023 00:03:52 -0400 Received: from mail-pg1-x52b.google.com (mail-pg1-x52b.google.com [IPv6:2607:f8b0:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B6FC6C1 for ; Mon, 11 Sep 2023 21:03:26 -0700 (PDT) Received: by mail-pg1-x52b.google.com with SMTP id 41be03b00d2f7-5774750a6efso1709308a12.1 for ; Mon, 11 Sep 2023 21:03:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1694491406; x=1695096206; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=dO4+cEGxPiCeV2CVbiM9wjlADcga89b0P0sDkFy2dTQ=; b=TQbn0rx7Rp4DAhMqtEM4qk6Qkp4asj84T8+DPmNyabG0BvryPQNqVDhxZsuto1z64x d4LUHS+mhZuYApBP/9Rbyua6HTLyzcS62LeGd5pOto+3kTuXdQj5Oo2zfM8VlGIaR2nd 3WmLctPvWutJFIHdCBTGOEDq/4SSDTZuvMMqzY/qK1FFu50zpQ2CCqh4RiEO+TMY2D+7 U5W84SnbhqcO8H2x0y/LeK/ZnEPXjwEWKie3dNMa62CPFS9DmZlm2+y83ZUv1Tgb/3Wa B3EFoXf1ct03KxQTe9XEGumXaOlBhC7SMrPGufK3ROQ+7lfSlS8qVFLiQ6k0TDPAW6cp rUVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694491406; x=1695096206; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=dO4+cEGxPiCeV2CVbiM9wjlADcga89b0P0sDkFy2dTQ=; b=s0okIfLYHvQlPGbUf+4attm6MQ+8zOBywFiYpNDZ2+Da4jmfk8/MVs5SRSSLSF7t/9 o6Yuh4lCCmJ608I465sXDwkzvwt5HIp4YGcGu+lmvIR+hMwkhSu+F/a6+VCjwS2D71S1 cAlDvLKSPF5ikPW4ZqIFY/Hg6ts682S60UkcqyOG28WXZvc64I2WVWAMoJCyoMWG3Kdi XZjMojRxKGrHzktddM5o8J2jdizl9yutPPkHnz0TX+5N85qHDia3DNAntjfwte+hdA8u zjTNgB44mVcrdegod7b19cHXkqp4Q3I53GgGXeo9n5DZ6bXar6mOmGQNV+GbMNfew2dD 2hGg== X-Gm-Message-State: AOJu0YwovJKOm+z6stVagXhYdxVcfsRuKu1JIWPYbhKaKRKJmD39VReR bMJNhMnvSGDFzgk9msitYGZIVg== X-Google-Smtp-Source: AGHT+IEFDkF6RPRQQ7zVm28Lzgk5f6Cw4eASyqgaEr2khKODHnvIU9NlvDHMwwCWZZgQB4i0g2YtsQ== X-Received: by 2002:a17:90a:630b:b0:26d:41ac:33f2 with SMTP id e11-20020a17090a630b00b0026d41ac33f2mr9397853pjj.32.1694491406077; Mon, 11 Sep 2023 21:03:26 -0700 (PDT) Received: from PF2LML5M-SMJ.bytedance.net ([203.208.189.6]) by smtp.gmail.com with ESMTPSA id i5-20020a17090a974500b00256799877ffsm6384232pjw.47.2023.09.11.21.03.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Sep 2023 21:03:25 -0700 (PDT) From: "guojinhui.liam" To: will@kernel.org, mark.rutland@arm.com Cc: lizefan.x@bytedance.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, "guojinhui.liam" Subject: [PATCH] perf/arm-cmn: Fix CMN_DTM_UNIT_INFO offset in CMN700 Date: Tue, 12 Sep 2023 12:03:09 +0800 Message-Id: <20230912040309.1789-1-guojinhui.liam@bytedance.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The por_dtm_unit_info's offest is 0x0960 in CMN700 according to the CMN700 spec. CMN700 spec link: https://developer.arm.com/documentation/102308/0302/?lang=3Den por_dtm_unit_info can be found in section [4.3.13.10 por_dtm_unit_info]. Signed-off-by: guojinhui.liam --- drivers/perf/arm-cmn.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index 913dc04b3a40..6f3fafee0ac9 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -113,6 +113,7 @@ #define CMN_DTM_PMEVCNTSR 0x240 =20 #define CMN_DTM_UNIT_INFO 0x0910 +#define CMN700_DTM_UNIT_INFO 0x0960 =20 #define CMN_DTM_NUM_COUNTERS 4 /* Want more local counters? Why not replicate the whole DTM! Ugh... */ @@ -2247,6 +2248,8 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsi= gned int rgn_offset) =20 if (cmn->part =3D=3D PART_CMN600) xp->dtc =3D 0xf; + else if (cmn->part =3D=3D PART_CMN700) + xp->dtc =3D 1 << readl_relaxed(xp_region + CMN700_DTM_UNIT_INFO); else xp->dtc =3D 1 << readl_relaxed(xp_region + CMN_DTM_UNIT_INFO); =20 --=20 2.20.1