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Wed, 06 Sep 2023 14:00:10 -0700 (PDT) Date: Wed, 6 Sep 2023 18:00:10 -0300 From: Geraldo Nascimento To: Robin Murphy Cc: Antonio Terceiro , Takashi Iwai , Jaroslav Kysela , Takashi Iwai , Catalin Marinas , Will Deacon , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: snd-cmipci oops during probe on arm64 (current mainline, pre-6.6-rc1) Message-ID: References: <877cp3esse.wl-tiwai@suse.de> <4f335dd2-8043-c60e-cf84-c2b01c4fee12@arm.com> <9e48fb7c-72a5-241a-004a-5f6791a81475@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9e48fb7c-72a5-241a-004a-5f6791a81475@arm.com> Message-ID-Hash: O6G54755Z4W5QAGKRWQ63CXHJHNCGKCU X-Message-ID-Hash: O6G54755Z4W5QAGKRWQ63CXHJHNCGKCU X-MailFrom: geraldogabriel@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Wed, Sep 06, 2023 at 09:37:18PM +0100, Robin Murphy wrote: > > Bit bigger than a Pi... ;) > Ohh, that's impressive indeed! But looking around with Google, it turns out the Altra Ampere PCIe is definitely quirky, see: https://lore.kernel.org/linux-acpi/20200806225525.GA706347@bjorn-Precision-5520/T/ https://github.com/Tencent/TencentOS-kernel/commit/f454797b673c06c0eb1b77be20d8a475ad2fbf6f The first quirk should probably be activated on Antonio's kernel but the second one being a downstream Tencent patch, isn't. Alas, the second quirk comes with a performance hit, see: https://gitlab.freedesktop.org/drm/amd/-/issues/2078 Thanks, Geraldo Nascimento 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 D5AC0EE14C3 for ; Wed, 6 Sep 2023 21:00:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=6EmASTyt72oErX4uT4bjKveW4Jf/ZeogI+dTkgB0Yaw=; b=SfDnTFzGANs3S8 a3Rmf9lOD5HMRcm1VLIx3cN3O8ceirLI+cFiRG7Vh74iSS9UOaENF1oQrlYT4EVN8kzqdIiQ03Oxv GNIzgFh9In+A/HpZMoN8NvJ8PHshlAzUssdbIfRKsieExaxr+Lw9d0KmqSxhXrrY41XfiEmxJ3bVv hKS3Zkip7uoRYFRPBrHKn+UkYjgnphTi6uvujY1InG3+ezXV7+7KYf+VelYT2Y0FjeT/n0iCdRSiV keyelM07bSqXXhYVnAshzYQt1gC3N6Rx2ShBW2dv5qY/ULP2Ib/GtswlfwT7YZmJb7DleKafa1faF jEB8zNpw4vnwVRWeqnCA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qdzdJ-00AtGc-2U; Wed, 06 Sep 2023 21:00:17 +0000 Received: from mail-ot1-x334.google.com ([2607:f8b0:4864:20::334]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qdzdH-00AtFk-15 for linux-arm-kernel@lists.infradead.org; Wed, 06 Sep 2023 21:00:16 +0000 Received: by mail-ot1-x334.google.com with SMTP id 46e09a7af769-6bcb5df95c5so236033a34.1 for ; Wed, 06 Sep 2023 14:00:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1694034011; x=1694638811; darn=lists.infradead.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=2/pwierm3geTwmDbGyOTegsvARs4VbCErTu9xnGSGKQ=; b=nq93fcScslrz9EiVBuMBYrFTuFqyWdvfG2tpDZ9IwJ3Peb7WXaV5WUDz1vJkIs7RVd HJWOVlsqqb0IOwv2TmcF1eqmERZJhgK2dBBkkg9GY8l4f7Q4lXRVB+dwpFLM6oNnlW+C cqmifSVvwkMr2AA29aWk8txZVZnCqyCNwe1T841DtaSEf+amr32fgfw5IIViGkQKS5ob BaGV7xe684O3tleraQsxLUi7Az8kNl9VMZEyPtWIewShFRWTBLe9zdlcFXg569qP0GMw xoAltQCu2OxhzM9tv0D1bogIXSNcTgyscFzKMxU+cD6/QjnUEOWiXl2rZCV16YNqIUyn gbCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1694034011; x=1694638811; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=2/pwierm3geTwmDbGyOTegsvARs4VbCErTu9xnGSGKQ=; b=CdKBeJm05hlg8Zb/KmpTffXMA5NkKUS/yIdXcciJEwIf4RYHPdVJJDU9bUcY2AV+/R phOMdlWvnm5oPkUmU8AHBmO5WDt0O4xBOtN0Rml7YpeCSEWuLv6dIXRolXANQ3A7wRny 0xvzY1Fki3KORyj91StlqL2vmI7ogRXKYes+sAbOJmv7vf2DLGisniATyNQhA9xe6Z5E pqnVWe7oV6iucDFT+NPqPzv7intnuklvy2yXi7F72OxNsaKG0TCx9NjpvEUfPy8zWAqr 4IBJ7gyXvTmQpjAf2U59orlEAIRZz7K2c2QivqotwllbhZXqVIXJcn3RcVySME1tITXv 7QgA== X-Gm-Message-State: AOJu0Ywfvv71x+GUQ94aLjYnmfssjSzgpK2QhA92VsndFKIJORy1wtk7 F2RHIJxLpErNPiaJMkF5h8w= X-Google-Smtp-Source: AGHT+IFv3dLk3FZQ+S5ys+7ZRzdMcKUQN5Bg35xrtWeiheQLbsG+0wYE4xxTuwUCncv2z03QyLIE/Q== X-Received: by 2002:a05:6870:e6c5:b0:1be:d49b:a3c5 with SMTP id s5-20020a056870e6c500b001bed49ba3c5mr22284941oak.29.1694034011323; Wed, 06 Sep 2023 14:00:11 -0700 (PDT) Received: from geday ([2804:7f2:8006:99ef:50e4:98e3:42a7:1619]) by smtp.gmail.com with ESMTPSA id c21-20020a05687093d500b001d0d4c3f758sm8131032oal.9.2023.09.06.14.00.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Sep 2023 14:00:10 -0700 (PDT) Date: Wed, 6 Sep 2023 18:00:10 -0300 From: Geraldo Nascimento To: Robin Murphy Cc: Antonio Terceiro , Takashi Iwai , Jaroslav Kysela , Takashi Iwai , Catalin Marinas , Will Deacon , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: snd-cmipci oops during probe on arm64 (current mainline, pre-6.6-rc1) Message-ID: References: <877cp3esse.wl-tiwai@suse.de> <4f335dd2-8043-c60e-cf84-c2b01c4fee12@arm.com> <9e48fb7c-72a5-241a-004a-5f6791a81475@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <9e48fb7c-72a5-241a-004a-5f6791a81475@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230906_140015_379407_EDC1B60F X-CRM114-Status: UNSURE ( 9.43 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Sep 06, 2023 at 09:37:18PM +0100, Robin Murphy wrote: > > Bit bigger than a Pi... ;) > Ohh, that's impressive indeed! But looking around with Google, it turns out the Altra Ampere PCIe is definitely quirky, see: https://lore.kernel.org/linux-acpi/20200806225525.GA706347@bjorn-Precision-5520/T/ https://github.com/Tencent/TencentOS-kernel/commit/f454797b673c06c0eb1b77be20d8a475ad2fbf6f The first quirk should probably be activated on Antonio's kernel but the second one being a downstream Tencent patch, isn't. Alas, the second quirk comes with a performance hit, see: https://gitlab.freedesktop.org/drm/amd/-/issues/2078 Thanks, Geraldo Nascimento _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel