From patchwork Mon Apr 22 06:57:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aravind Iddamsetty X-Patchwork-Id: 13637701 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 91B79C4345F for ; Mon, 22 Apr 2024 06:55:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AA9F411281E; Mon, 22 Apr 2024 06:55:24 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Dh/808JE"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id A721311281E; Mon, 22 Apr 2024 06:55:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1713768923; x=1745304923; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=PDkz9lOjbFcPCiVKYC2fqAKIeHNnUuNgw1R6bF4CXhc=; b=Dh/808JEA9kg3hyF321MOQcu0Fn9GxM2wbLctJeFVnODZiclNWIY5yLw m5JvalBGogQXPXPlhyfszZtnznGtJs5xgrJeHFVhvOPzC0a4s+aOYNtaP lWxg1BEc2FV+EFPoPawGZt/vdgqkDshbaDYu+BmpZOjtxgELoeOKmo74V t4RAXT0e+u/hlATke7vYPiTzte1rpnVzFZJH021Cpd3AfAK8oX0N/btTC wHAa8a9FfC2/rTnXdyYp+KjvDm9R58oFOKkykecWn2iHkxqdlq9/zYGC7 xQklY4T9JLw4tf+WO+6JfjgM9ajaxKSabqNH9jRxv0cgZOkeZYs+Futmi g==; X-CSE-ConnectionGUID: +s6ONWvQQZKc+esPTJJrtA== X-CSE-MsgGUID: kfieOUdBQJOh9MWdnpgCdA== X-IronPort-AV: E=McAfee;i="6600,9927,11051"; a="20715503" X-IronPort-AV: E=Sophos;i="6.07,220,1708416000"; d="scan'208";a="20715503" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Apr 2024 23:55:22 -0700 X-CSE-ConnectionGUID: yzWdJnpLS4mlaB+mCIsrDQ== X-CSE-MsgGUID: SHWea15HSWmG8/wCX/IPqg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,220,1708416000"; d="scan'208";a="28584488" Received: from aravind-dev.iind.intel.com ([10.145.162.146]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Apr 2024 23:55:18 -0700 From: Aravind Iddamsetty To: dri-devel@lists.freedesktop.org, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, airlied@gmail.com, mripard@kernel.org, tzimmermann@suse.de, rodrigo.vivi@intel.com Cc: intel-xe@lists.freedesktop.org, Lucas De Marchi Subject: [PATCH v4 0/4] drm/xe: Support PCIe FLR Date: Mon, 22 Apr 2024 12:27:52 +0530 Message-Id: <20240422065756.294679-1-aravind.iddamsetty@linux.intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" PCI subsystem provides callbacks to inform the driver about a request to do function level reset by user, initiated by writing to sysfs entry /sys/bus/pci/devices/.../reset. This will allow the driver to handle FLR without the need to do unbind and rebind as the driver needs to reinitialize the device afresh post FLR. v4: add kernel-doc v3: Trivial fix v2: 1. Directly expose the devm_drm_dev_release_action instead of introducing a helper (Rodrigo) 2. separate out gt idle and pci save/restore to a separate patch (Lucas) 3. Fixed the warnings seen around xe_guc_submit_stop, xe_guc_puc_fini Rodrigo, retaining your r-b's since there are no functional changes. Cc: Rodrigo Vivi Cc: Lucas De Marchi dmesg snip showing FLR recovery: [ 590.486336] xe 0000:4d:00.0: enabling device (0140 -> 0142) [ 590.506933] xe 0000:4d:00.0: [drm] Using GuC firmware from xe/pvc_guc_70.20.0.bin version 70.20.0 [ 590.542355] xe 0000:4d:00.0: [drm] Using GuC firmware from xe/pvc_guc_70.20.0.bin version 70.20.0 [ 590.578532] xe 0000:4d:00.0: [drm] VISIBLE VRAM: 0x0000202000000000, 0x0000002000000000 [ 590.578556] xe 0000:4d:00.0: [drm] VRAM[0, 0]: Actual physical size 0x0000001000000000, usable size exclude stolen 0x0000000fff000000, CPU accessible size 0x0000000fff000000 [ 590.578560] xe 0000:4d:00.0: [drm] VRAM[0, 0]: DPA range: [0x0000000000000000-1000000000], io range: [0x0000202000000000-202fff000000] [ 590.578585] xe 0000:4d:00.0: [drm] VRAM[1, 1]: Actual physical size 0x0000001000000000, usable size exclude stolen 0x0000000fff000000, CPU accessible size 0x0000000fff000000 [ 590.578589] xe 0000:4d:00.0: [drm] VRAM[1, 1]: DPA range: [0x0000001000000000-2000000000], io range: [0x0000203000000000-203fff000000] [ 590.578592] xe 0000:4d:00.0: [drm] Total VRAM: 0x0000202000000000, 0x0000002000000000 [ 590.578594] xe 0000:4d:00.0: [drm] Available VRAM: 0x0000202000000000, 0x0000001ffe000000 [ 590.738899] xe 0000:4d:00.0: [drm] GT0: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 590.889991] xe 0000:4d:00.0: [drm] GT1: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 590.892835] [drm] Initialized xe 1.1.0 20201103 for 0000:4d:00.0 on minor 1 [ 590.900215] xe 0000:9a:00.0: enabling device (0140 -> 0142) [ 590.915991] xe 0000:9a:00.0: [drm] Using GuC firmware from xe/pvc_guc_70.20.0.bin version 70.20.0 [ 590.957450] xe 0000:9a:00.0: [drm] Using GuC firmware from xe/pvc_guc_70.20.0.bin version 70.20.0 [ 590.989863] xe 0000:9a:00.0: [drm] VISIBLE VRAM: 0x000020e000000000, 0x0000002000000000 [ 590.989888] xe 0000:9a:00.0: [drm] VRAM[0, 0]: Actual physical size 0x0000001000000000, usable size exclude stolen 0x0000000fff000000, CPU accessible size 0x0000000fff000000 [ 590.989893] xe 0000:9a:00.0: [drm] VRAM[0, 0]: DPA range: [0x0000000000000000-1000000000], io range: [0x000020e000000000-20efff000000] [ 590.989918] xe 0000:9a:00.0: [drm] VRAM[1, 1]: Actual physical size 0x0000001000000000, usable size exclude stolen 0x0000000fff000000, CPU accessible size 0x0000000fff000000 [ 590.989921] xe 0000:9a:00.0: [drm] VRAM[1, 1]: DPA range: [0x0000001000000000-2000000000], io range: [0x000020f000000000-20ffff000000] [ 590.989924] xe 0000:9a:00.0: [drm] Total VRAM: 0x000020e000000000, 0x0000002000000000 [ 590.989927] xe 0000:9a:00.0: [drm] Available VRAM: 0x000020e000000000, 0x0000001ffe000000 [ 591.142061] xe 0000:9a:00.0: [drm] GT0: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 591.293505] xe 0000:9a:00.0: [drm] GT1: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 591.295487] [drm] Initialized xe 1.1.0 20201103 for 0000:9a:00.0 on minor 2 [ 610.685993] Console: switching to colour dummy device 80x25 [ 610.686118] [IGT] xe_exec_basic: executing [ 610.755398] xe 0000:4d:00.0: [drm] GT0: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 610.771783] xe 0000:4d:00.0: [drm] GT1: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 610.773542] [IGT] xe_exec_basic: starting subtest once-basic [ 610.960251] [IGT] xe_exec_basic: finished subtest once-basic, SUCCESS [ 610.962741] [IGT] xe_exec_basic: exiting, ret=0 [ 610.977203] Console: switching to colour frame buffer device 128x48 [ 611.006675] xe_exec_basic (3237) used greatest stack depth: 11128 bytes left [ 644.682201] xe 0000:4d:00.0: [drm] GT0: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 644.699060] xe 0000:4d:00.0: [drm] GT1: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 644.699118] xe 0000:4d:00.0: preparing for PCIe FLR reset [ 644.699149] xe 0000:4d:00.0: [drm] removing device access to userspace [ 644.928577] xe 0000:4d:00.0: PCI device went through FLR, reenabling the device [ 656.104233] xe 0000:4d:00.0: [drm] Using GuC firmware from xe/pvc_guc_70.20.0.bin version 70.20.0 [ 656.149525] xe 0000:4d:00.0: [drm] Using GuC firmware from xe/pvc_guc_70.20.0.bin version 70.20.0 [ 656.182711] xe 0000:4d:00.0: [drm] VISIBLE VRAM: 0x0000202000000000, 0x0000002000000000 [ 656.182737] xe 0000:4d:00.0: [drm] VRAM[0, 0]: Actual physical size 0x0000001000000000, usable size exclude stolen 0x0000000fff000000, CPU accessible size 0x0000000fff000000 [ 656.182742] xe 0000:4d:00.0: [drm] VRAM[0, 0]: DPA range: [0x0000000000000000-1000000000], io range: [0x0000202000000000-202fff000000] [ 656.182768] xe 0000:4d:00.0: [drm] VRAM[1, 1]: Actual physical size 0x0000001000000000, usable size exclude stolen 0x0000000fff000000, CPU accessible size 0x0000000fff000000 [ 656.182772] xe 0000:4d:00.0: [drm] VRAM[1, 1]: DPA range: [0x0000001000000000-2000000000], io range: [0x0000203000000000-203fff000000] [ 656.182775] xe 0000:4d:00.0: [drm] Total VRAM: 0x0000202000000000, 0x0000002000000000 [ 656.182778] xe 0000:4d:00.0: [drm] Available VRAM: 0x0000202000000000, 0x0000001ffe000000 [ 656.348657] xe 0000:4d:00.0: [drm] GT0: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 656.507619] xe 0000:4d:00.0: [drm] GT1: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 656.510848] [drm] Initialized xe 1.1.0 20201103 for 0000:4d:00.0 on minor 1 [ 665.754402] Console: switching to colour dummy device 80x25 [ 665.754484] [IGT] xe_exec_basic: executing [ 665.805853] xe 0000:4d:00.0: [drm] GT0: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 665.819825] xe 0000:4d:00.0: [drm] GT1: CCS_MODE=0 config:00400000, num_engines:1, num_slices:4 [ 665.820359] [IGT] xe_exec_basic: starting subtest once-basic [ 665.968899] [IGT] xe_exec_basic: finished subtest once-basic, SUCCESS [ 665.969534] [IGT] xe_exec_basic: exiting, ret=0 [ 665.981027] Console: switching to colour frame buffer device 128x48 Aravind Iddamsetty (4): drm: add devm release action drm/xe: Save and restore PCI state drm/xe: Extract xe_gt_idle() helper drm/xe/FLR: Support PCIe FLR drivers/gpu/drm/drm_drv.c | 13 ++++ drivers/gpu/drm/xe/Makefile | 1 + drivers/gpu/drm/xe/xe_device_types.h | 6 ++ drivers/gpu/drm/xe/xe_gt.c | 28 +++++---- drivers/gpu/drm/xe/xe_gt.h | 1 + drivers/gpu/drm/xe/xe_guc_pc.c | 4 ++ drivers/gpu/drm/xe/xe_pci.c | 57 ++++++++++++++++-- drivers/gpu/drm/xe/xe_pci.h | 6 +- drivers/gpu/drm/xe/xe_pci_err.c | 88 ++++++++++++++++++++++++++++ drivers/gpu/drm/xe/xe_pci_err.h | 13 ++++ include/drm/drm_drv.h | 2 + 11 files changed, 204 insertions(+), 15 deletions(-) create mode 100644 drivers/gpu/drm/xe/xe_pci_err.c create mode 100644 drivers/gpu/drm/xe/xe_pci_err.h