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Wed, 06 Sep 2023 19:29:49 -0700 (PDT) Date: Wed, 6 Sep 2023 23:29:46 -0300 From: Geraldo Nascimento To: Antonio Terceiro Cc: Robin Murphy , 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Message-ID-Hash: UFU54WQL34NMFL5TTVU6KE4OFGXJ4SDS X-Message-ID-Hash: UFU54WQL34NMFL5TTVU6KE4OFGXJ4SDS 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 03:36:40PM -0300, Antonio Terceiro wrote: > On Wed, Sep 06, 2023 at 01:49:16PM +0100, Robin Murphy wrote: > > It's blowing up trying to access PCI I/O space, which has apparently ended > > up in the indirect access mechanism without that being configured correctly. > > That is definitely an issue down somewhere between the PCI layer and the > > system firmware. Does the system even have an I/O space window? Some arm64 > > machines don't. I guess we might not have got as far as probing a driver if > > the I/O BAR couldn't be assigned at all, but either way something's not gone > > right. > > I'm pretty sure I saw reports of people using PCI GPUs on this machine, > but I would need to confirm. > > What info would I need to gather from the machine in order to figure > this out? Antonio, please see: https://community.amperecomputing.com/t/amd-gpus-on-the-altra-devkit-and-other-altras-patches-available-now/336/11 You have a quirky PCIe controller it seems. You'll have to go through the errata and then some. 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Wed, 06 Sep 2023 19:29:49 -0700 (PDT) Date: Wed, 6 Sep 2023 23:29:46 -0300 From: Geraldo Nascimento To: Antonio Terceiro Cc: Robin Murphy , 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> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230906_192953_538648_92137B3C X-CRM114-Status: GOOD ( 17.76 ) 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 03:36:40PM -0300, Antonio Terceiro wrote: > On Wed, Sep 06, 2023 at 01:49:16PM +0100, Robin Murphy wrote: > > It's blowing up trying to access PCI I/O space, which has apparently ended > > up in the indirect access mechanism without that being configured correctly. > > That is definitely an issue down somewhere between the PCI layer and the > > system firmware. Does the system even have an I/O space window? Some arm64 > > machines don't. I guess we might not have got as far as probing a driver if > > the I/O BAR couldn't be assigned at all, but either way something's not gone > > right. > > I'm pretty sure I saw reports of people using PCI GPUs on this machine, > but I would need to confirm. > > What info would I need to gather from the machine in order to figure > this out? Antonio, please see: https://community.amperecomputing.com/t/amd-gpus-on-the-altra-devkit-and-other-altras-patches-available-now/336/11 You have a quirky PCIe controller it seems. You'll have to go through the errata and then some. Good Luck, Geraldo Nascimento _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel