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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 53F8CF5513F for ; Sun, 8 Mar 2026 13:58:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E207210E01F; Sun, 8 Mar 2026 13:58:05 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="agrLcmd8"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4DF2A10E01F for ; Sun, 8 Mar 2026 13:58:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772978284; x=1804514284; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=bWWGZtkghu+yA3dqwgTN6YJJxL+S9rKzdIlqwt2up78=; b=agrLcmd8G9DvYf+Nqcwzuhgrt3yiCTQXQB0DHj0qaT03Zmyd5s3plX1F oN4+y9OCXVXHRfgvNaf9diAXl/zgZO6f/QrV38e4f7ucjdg/OlhQmBnz0 SLYQ4RdDN0r0+kFQZNKF3Y8eB6AneVdI4xq8QjAQrX49SWlaQr2N08HI1 QQENVe+ct0jeh8CGB/SeKcKF9eLMHYFLEAdS4EAYpyWuj3sV3wz1WsWpS oZC7AxdpopsxQRvJqmh+Bu1UNO1m4eGMhTmuHu4oL696Q9zO6Egl5WigD OTCF0jezWNewUV+O+mUZGWsF6oC/6bhY1CS77SHG3n37BjHP53QRO6aCu w==; X-CSE-ConnectionGUID: msKRB/zpRXGRYbViSB73XQ== X-CSE-MsgGUID: Kj+QWTOjTQexzlZ03DzifQ== X-IronPort-AV: E=McAfee;i="6800,10657,11722"; a="73934690" X-IronPort-AV: E=Sophos;i="6.23,108,1770624000"; d="scan'208";a="73934690" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Mar 2026 06:58:04 -0700 X-CSE-ConnectionGUID: yZmWhoCTTwyFvZYo6a5KuQ== X-CSE-MsgGUID: 3l6tQGEDQMiEhUNeNRejOQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,108,1770624000"; d="scan'208";a="242523257" Received: from jraag-z790m-itx-wifi.iind.intel.com ([10.190.239.23]) by fmviesa002.fm.intel.com with ESMTP; 08 Mar 2026 06:58:00 -0700 From: Raag Jadav To: intel-xe@lists.freedesktop.org Cc: matthew.brost@intel.com, rodrigo.vivi@intel.com, thomas.hellstrom@linux.intel.com, riana.tauro@intel.com, michal.wajdeczko@intel.com, matthew.d.roper@intel.com, michal.winiarski@intel.com, matthew.auld@intel.com, maarten@lankhorst.se, jani.nikula@intel.com, lukasz.laguna@intel.com, Raag Jadav Subject: [PATCH v3 00/10] Introduce Xe PCIe FLR Date: Sun, 8 Mar 2026 19:25:26 +0530 Message-ID: <20260308135536.3852304-1-raag.jadav@intel.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" Here's my humble attempt at introducing PCIe Function Level Reset (FLR) support in xe driver. This is ofcourse a half baked implementation and only limited to re-initializing GT. This needs to be extended for a lot of different components which I've skipped here for my lack of competence, so feel free to join in and support them. PS: All xe_exec_basic tests and clpeak run smoothly after FLR. Give it a spin and let me know if any regressions. Trigger it with: $ echo 1 > /sys/bus/pci/devices//reset v2: Re-initialize migrate context (Matthew Brost) Add kernel doc (Matthew Brost) Spell out Function Level Reset (Jani) v3: Cancel in-flight jobs before FLR Raag Jadav (10): drm/xe/uc_fw: Allow re-initializing firmware drm/xe/hw_fence: Synchronize fence irq before destroying the job drm/xe/guc_submit: Support cancelling submission drm/xe/gt: Introduce FLR helpers drm/xe/irq: Introduce xe_irq_disable() drm/xe: Introduce xe_device_assert_lmem_ready() drm/xe/bo_evict: Introduce xe_bo_restore_map() drm/xe/exec_queue: Introduce xe_exec_queue_reinit() drm/xe/migrate: Introduce xe_migrate_reinit() drm/xe/pci: Introduce PCIe FLR drivers/gpu/drm/xe/Makefile | 1 + drivers/gpu/drm/xe/xe_bo_evict.c | 51 +++++++-- drivers/gpu/drm/xe/xe_bo_evict.h | 2 + drivers/gpu/drm/xe/xe_device.c | 10 +- drivers/gpu/drm/xe/xe_device.h | 1 + drivers/gpu/drm/xe/xe_exec_queue.c | 34 +++++- drivers/gpu/drm/xe/xe_exec_queue.h | 1 + drivers/gpu/drm/xe/xe_gpu_scheduler.c | 11 ++ drivers/gpu/drm/xe/xe_gpu_scheduler.h | 1 + drivers/gpu/drm/xe/xe_gsc.c | 14 +++ drivers/gpu/drm/xe/xe_gsc.h | 1 + drivers/gpu/drm/xe/xe_gt.c | 32 ++++++ drivers/gpu/drm/xe/xe_gt.h | 2 + drivers/gpu/drm/xe/xe_guc.c | 23 ++++ drivers/gpu/drm/xe/xe_guc.h | 2 + drivers/gpu/drm/xe/xe_guc_submit.c | 24 +++++ drivers/gpu/drm/xe/xe_guc_submit.h | 1 + drivers/gpu/drm/xe/xe_huc.c | 14 +++ drivers/gpu/drm/xe/xe_huc.h | 1 + drivers/gpu/drm/xe/xe_hw_fence.c | 5 + drivers/gpu/drm/xe/xe_hw_fence.h | 1 + drivers/gpu/drm/xe/xe_irq.c | 13 ++- drivers/gpu/drm/xe/xe_irq.h | 1 + drivers/gpu/drm/xe/xe_lrc.c | 17 +++ drivers/gpu/drm/xe/xe_lrc.h | 2 + drivers/gpu/drm/xe/xe_migrate.c | 12 +++ drivers/gpu/drm/xe/xe_migrate.h | 1 + drivers/gpu/drm/xe/xe_pci.c | 1 + drivers/gpu/drm/xe/xe_pci.h | 2 + drivers/gpu/drm/xe/xe_pci_err.c | 150 ++++++++++++++++++++++++++ drivers/gpu/drm/xe/xe_sched_job.c | 1 + drivers/gpu/drm/xe/xe_uc.c | 36 +++++++ drivers/gpu/drm/xe/xe_uc.h | 2 + drivers/gpu/drm/xe/xe_uc_fw.c | 39 +++++-- drivers/gpu/drm/xe/xe_uc_fw.h | 1 + 35 files changed, 489 insertions(+), 21 deletions(-) create mode 100644 drivers/gpu/drm/xe/xe_pci_err.c -- 2.43.0