From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from forward206b.mail.yandex.net (forward206b.mail.yandex.net [178.154.239.151]) (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 751303EDAB2 for ; Mon, 9 Mar 2026 21:01:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.151 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773090091; cv=none; b=Z8F5QsBCcHb5lbvqoqkrThieLpDHlnT+yuIw3nVuU6cholVtvXPgbttl3dz0QLxZ6Gz7k5LUTo4wq+0pgCvkz5zPGA2DeoapwEQpwzjPIPVFG8nbASwQXt+KxQxE4YJRLrgxrkotMYXXrrgi4Vg/1CjI80zYKIIzkkL9yM2xrfc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773090091; c=relaxed/simple; bh=+15ims84K5g3R2Z2rbG1X2cJcaI0dwHi2GLAXO5GT94=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=Y3ukJ2yR3o+O+n7RARDXXz6JmQxCFwXaPkG+IyFjQVL3Z8JY/NjpXn+yeiT5aT2aRl0TnzXVrTUGOMb8BgqriwEYM8plahttbKtJBoDhMsXYZE5VsY/vCdvORmJUSJK2ydhDC2jJiya8xXSMhAZUyPwjmDNM5F6miY/Ac1BP+jE= 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=KTQYD00Y; arc=none smtp.client-ip=178.154.239.151 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="KTQYD00Y" Received: from forward100b.mail.yandex.net (forward100b.mail.yandex.net [IPv6:2a02:6b8:c02:900:1:45:d181:d100]) by forward206b.mail.yandex.net (Yandex) with ESMTPS id A6B778283A for ; Mon, 09 Mar 2026 23:55:00 +0300 (MSK) Received: from mail-nwsmtp-smtp-production-main-89.sas.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-89.sas.yp-c.yandex.net [IPv6:2a02:6b8:c08:ec27:0:640:5ac1:0]) by forward100b.mail.yandex.net (Yandex) with ESMTPS id DC37880898; Mon, 09 Mar 2026 23:54:52 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-89.sas.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id DsL9phmGm0U0-dRWpkyzu; Mon, 09 Mar 2026 23:54:51 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=mail; t=1773089692; bh=zw4BW7xq9n36BgD6MB8AZl3w8nnFPfRvDfzjrTAcMTw=; h=Message-ID:Date:Cc:Subject:To:From; b=KTQYD00Yw4zPisqCZ13KW5LOy/Er/1oTdpl8cDlr1Jn2Cy21txMWwbP/ocIb9df71 /bl10VagyuDBK0y0V5v4U9a8wGyoWc/8y7Z//099Ta0GmkvOFvK0O2DintF0qiOlow D730CdFZXU9H3IkhSUfMtqM8v/az27hQF8iopeJM= Authentication-Results: mail-nwsmtp-smtp-production-main-89.sas.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, =?UTF-8?q?Onur=20=C3=96zkan?= Subject: [PATCH v1 0/4] drm/tyr: implement GPU reset API Date: Mon, 9 Mar 2026 23:53:15 +0300 Message-ID: <20260309205403.34390-1-work@onurozkan.dev> X-Mailer: git-send-email 2.51.2 Precedence: bulk X-Mailing-List: linux-kernel@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