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[125.229.129.140]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-7e6db2c668asm7277802a12.45.2024.09.30.19.48.18 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Sep 2024 19:48:19 -0700 (PDT) From: You-Sheng Yang To: kernel-team@lists.ubuntu.com Subject: [PATCH 0/3][SRU][Unstable][Oracular] Fix AMD Instinct MI300 unusable with integrated display Date: Tue, 1 Oct 2024 10:48:13 +0800 Message-ID: <20241001024816.111283-1-vicamo.yang@canonical.com> X-Mailer: git-send-email 2.45.2 MIME-Version: 1.0 Received-SPF: pass client-ip=209.85.215.169; envelope-from=vicamo@gmail.com; helo=mail-pg1-f169.google.com X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/2078773 [Impact] Missing devices nodes for AMD Instinct MI300 card when installed along with integrated display. [Fix] * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.12-rc1&id=5fbca8b48b3050ae7fb611a8b09af60012ed6de1 ("drm: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.12-rc1&id=45c4d994b82b08f0ce5eb50f8da29379c92a391e ("accel: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.12-rc1&id=071d583e01c88272f6ff216d4f867f8f35e94d7d ("drm: Expand max DRM device number to full MINORBITS") [Test Case] When enabled, additional drm devices will become available: ``` root123@g593-sx1:~$ ls -l /sys/class/drm/ lrwxrwxrwx 1 root root 0 Sep 21 00:55 card10 -> ../../devices/platform/amdgpu_xcp_7/drm/card10 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card11 -> ../../devices/platform/amdgpu_xcp_8/drm/card11 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card12 -> ../../devices/platform/amdgpu_xcp_9/drm/card12 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card13 -> ../../devices/platform/amdgpu_xcp_10/drm/card13 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card14 -> ../../devices/platform/amdgpu_xcp_11/drm/card14 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card15 -> ../../devices/platform/amdgpu_xcp_12/drm/card15 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card16 -> ../../devices/platform/amdgpu_xcp_13/drm/card16 ... ``` [Where problems could occur] New hardware support. Expect more fixes in need. [Other Info] Targeting last supported generic/oem kernels only. Nominated for oem-6.11, generic-6.11 and unstable. Michał Winiarski (3): drm: Use XArray instead of IDR for minors accel: Use XArray instead of IDR for minors drm: Expand max DRM device number to full MINORBITS drivers/accel/drm_accel.c | 110 +++------------------------------ drivers/gpu/drm/drm_drv.c | 97 ++++++++++++++--------------- drivers/gpu/drm/drm_file.c | 2 +- drivers/gpu/drm/drm_internal.h | 4 -- include/drm/drm_accel.h | 18 +----- include/drm/drm_file.h | 5 ++ 6 files changed, 62 insertions(+), 174 deletions(-)