From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from forward201a.mail.yandex.net (forward201a.mail.yandex.net [178.154.239.92]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B9E20367F35; Fri, 13 Mar 2026 09:23:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.92 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773393836; cv=none; b=Ohrkq1QVqVkeDaWPZf2EuFewW5rTgHrYWS98b6riZRQ8aqntf7lAn9c3BTuJp1r5W7UARJsr+0gG6zu/W6VLPcQprIvWyxfp28/gPRMf3kdKau9BzkkNsjA6j7ne83cJq4Ca0xKgGBcF4YdzZORAjj5g5HYEsrMZB/8dJLfxN1Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773393836; c=relaxed/simple; bh=+15ims84K5g3R2Z2rbG1X2cJcaI0dwHi2GLAXO5GT94=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=uR9UtVL/z5q0zpZnkNVNfp1cxghxTq7lHGFTdi4NC5JE+qe99kHqU+fpoUBTlRbtBu0XYZzmMcRLJ2bqT70GfhvzCI95YSlEFUEPVyBy7aobT6Wngod+VST6Hcm8Sg6OuIg6UiR9mebMnGIdKr8E+zIEDh7PNTfg7fmjjkgzeqY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=onurozkan.dev; spf=pass smtp.mailfrom=onurozkan.dev; dkim=pass (1024-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b=qrCWNn48; arc=none smtp.client-ip=178.154.239.92 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=onurozkan.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=onurozkan.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b="qrCWNn48" Received: from forward101a.mail.yandex.net (forward101a.mail.yandex.net [IPv6:2a02:6b8:c0e:500:1:45:d181:d101]) by forward201a.mail.yandex.net (Yandex) with ESMTPS id B84EF89F43; Fri, 13 Mar 2026 12:17:54 +0300 (MSK) Received: from mail-nwsmtp-smtp-production-main-81.vla.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-81.vla.yp-c.yandex.net [IPv6:2a02:6b8:c0f:571a:0:640:23e3:0]) by forward101a.mail.yandex.net (Yandex) with ESMTPS id BA6AC80E9A; Fri, 13 Mar 2026 12:17:46 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-81.vla.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id 3HEusrTGkmI0-9zP4Lv6M; Fri, 13 Mar 2026 12:17:45 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=mail; t=1773393466; bh=zw4BW7xq9n36BgD6MB8AZl3w8nnFPfRvDfzjrTAcMTw=; h=Message-ID:Date:Cc:Subject:To:From; b=qrCWNn48F/vf+k8Ltav4UisfBQXf/aJ0aJ54nfPMfO3JKTNtOoxVEmOG3YftN8DFk s7rgfNKxMR1HizlJDv/GumR4B00d5taBgR4juYkMe7IHM8O6GKu0RyuAtuXd0R6YrZ 44oZXVlfw3TczEpU1AnGGH74E+3jM1xZ2QxT3Bfg= Authentication-Results: mail-nwsmtp-smtp-production-main-81.vla.yp-c.yandex.net; dkim=pass header.i=@onurozkan.dev From: =?UTF-8?q?Onur=20=C3=96zkan?= To: linux-kernel@vger.kernel.org Cc: dakr@kernel.org, aliceryhl@google.com, daniel.almeida@collabora.com, airlied@gmail.com, simona@ffwll.ch, dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org, =?UTF-8?q?Onur=20=C3=96zkan?= Subject: [PATCH v1 RESEND 0/4] drm/tyr: implement GPU reset API Date: Fri, 13 Mar 2026 12:16:40 +0300 Message-ID: <20260313091646.16938-1-work@onurozkan.dev> X-Mailer: git-send-email 2.51.2 Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This series adds GPU reset handling support for Tyr in a new module drivers/gpu/drm/tyr/driver.rs which encapsulates the low-level reset controller internals and exposes a ResetHandle API to the driver. The reset module owns reset state, queueing and execution ordering through OrderedQueue and handles duplicate/concurrent reset requests with a pending flag. Apart from the reset module, the first 3 patches: - Fixes a potential reset-complete stale state bug by clearing completed state before doing soft reset. - Adds Work::disable_sync() (wrapper of bindings::disable_work_sync). - Adds OrderedQueue support. Runtime tested on hardware by Deborah Brouwer (see [1]) and myself. [1]: https://gitlab.freedesktop.org/panfrost/linux/-/merge_requests/63#note_3364131 Link: https://gitlab.freedesktop.org/panfrost/linux/-/issues/28 --- Onur Özkan (4): drm/tyr: clear reset IRQ before soft reset rust: add Work::disable_sync rust: add ordered workqueue wrapper drm/tyr: add GPU reset handling drivers/gpu/drm/tyr/driver.rs | 38 +++---- drivers/gpu/drm/tyr/reset.rs | 180 ++++++++++++++++++++++++++++++++++ drivers/gpu/drm/tyr/tyr.rs | 1 + rust/helpers/workqueue.c | 6 ++ rust/kernel/workqueue.rs | 62 ++++++++++++ 5 files changed, 260 insertions(+), 27 deletions(-) create mode 100644 drivers/gpu/drm/tyr/reset.rs base-commit: 0ccc0dac94bf2f5c6eb3e9e7f1014cd9dddf009f -- 2.51.2