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 1611FEB64DC for ; Fri, 30 Jun 2023 17:58:01 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8EB5010E4DC; Fri, 30 Jun 2023 17:58:00 +0000 (UTC) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id B413510E4DC for ; Fri, 30 Jun 2023 17:57:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1688147879; x=1719683879; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Py5aZR2zgdPLwZKFG3YUuCnvgTMvtMxPHSrGre0nvLw=; b=UF/bEBK2as4F1nOW/sG1/dvtla28VRZ6zeuRafZwPOK7Umx1MAMw+mWD sCTEN8GaswgpM1J3jIa8MIaurQwenM2a/jK+gxXN0wMkUcPIZC0yiqwee TAq1/2Su9iQGKEsh2GVbIsqky5RJaN48qYjyH2Ox4zOMORZ6T4SmGujej TZJJSmkeP+GD+Qtopvd03gdYinkP5IlvexQuHExu2eVVEakHsWDOgwnCb KGTc2f8eLbJyzKJavvZ4qlASjPu7tcupC7ZWrWCpd1HHKKUkYsRYPuB4a CrqRzVPtUUsJMD8p45/1i4eydEtVXEKgEwoqwBSARmiN9KEXWm8Fkw1pv w==; X-IronPort-AV: E=McAfee;i="6600,9927,10757"; a="365942730" X-IronPort-AV: E=Sophos;i="6.01,171,1684825200"; d="scan'208";a="365942730" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jun 2023 10:57:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10757"; a="841925448" X-IronPort-AV: E=Sophos;i="6.01,171,1684825200"; d="scan'208";a="841925448" Received: from lstrano-desk.jf.intel.com ([10.24.89.184]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jun 2023 10:57:50 -0700 From: Matthew Brost To: Date: Fri, 30 Jun 2023 10:58:01 -0700 Message-Id: <20230630175804.1096370-7-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230630175804.1096370-1-matthew.brost@intel.com> References: <20230630175804.1096370-1-matthew.brost@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [Intel-xe] [PATCH v4 6/9] drm: debugfs: provide infrastructure to dump a DRM GPU VA space 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: , Cc: Danilo Krummrich Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" From: Danilo Krummrich This commit adds a function to dump a DRM GPU VA space and a macro for drivers to register the struct drm_info_list 'gpuvas' entry. Most likely, most drivers might maintain one DRM GPU VA space per struct drm_file, but there might also be drivers not having a fixed relation between DRM GPU VA spaces and a DRM core infrastructure, hence we need the indirection via the driver iterating it's maintained DRM GPU VA spaces. Signed-off-by: Danilo Krummrich --- drivers/gpu/drm/drm_debugfs.c | 41 +++++++++++++++++++++++++++++++++++ include/drm/drm_debugfs.h | 25 +++++++++++++++++++++ 2 files changed, 66 insertions(+) diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index 4855230ba2c6..82180fb1c200 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -39,6 +39,7 @@ #include #include #include +#include #include "drm_crtc_internal.h" #include "drm_internal.h" @@ -175,6 +176,46 @@ static const struct file_operations drm_debugfs_fops = { .release = single_release, }; +/** + * drm_debugfs_gpuva_info - dump the given DRM GPU VA space + * @m: pointer to the &seq_file to write + * @mgr: the &drm_gpuva_manager representing the GPU VA space + * + * Dumps the GPU VA mappings of a given DRM GPU VA manager. + * + * For each DRM GPU VA space drivers should call this function from their + * &drm_info_list's show callback. + * + * Returns: 0 on success, -ENODEV if the &mgr is not initialized + */ +int drm_debugfs_gpuva_info(struct seq_file *m, + struct drm_gpuva_manager *mgr) +{ + DRM_GPUVA_ITER(it, mgr, 0); + struct drm_gpuva *va, *kva = &mgr->kernel_alloc_node; + + if (!mgr->name) + return -ENODEV; + + seq_printf(m, "DRM GPU VA space (%s) [0x%016llx;0x%016llx]\n", + mgr->name, mgr->mm_start, mgr->mm_start + mgr->mm_range); + seq_printf(m, "Kernel reserved node [0x%016llx;0x%016llx]\n", + kva->va.addr, kva->va.addr + kva->va.range); + seq_puts(m, "\n"); + seq_puts(m, " VAs | start | range | end | object | object offset\n"); + seq_puts(m, "-------------------------------------------------------------------------------------------------------------\n"); + drm_gpuva_iter_for_each(va, it) { + if (unlikely(va == &mgr->kernel_alloc_node)) + continue; + + seq_printf(m, " | 0x%016llx | 0x%016llx | 0x%016llx | 0x%016llx | 0x%016llx\n", + va->va.addr, va->va.range, va->va.addr + va->va.range, + (u64)va->gem.obj, va->gem.offset); + } + + return 0; +} +EXPORT_SYMBOL(drm_debugfs_gpuva_info); /** * drm_debugfs_create_files - Initialize a given set of debugfs files for DRM diff --git a/include/drm/drm_debugfs.h b/include/drm/drm_debugfs.h index 7616f457ce70..cb2c1956a214 100644 --- a/include/drm/drm_debugfs.h +++ b/include/drm/drm_debugfs.h @@ -34,6 +34,22 @@ #include #include + +#include + +/** + * DRM_DEBUGFS_GPUVA_INFO - &drm_info_list entry to dump a GPU VA space + * @show: the &drm_info_list's show callback + * @data: driver private data + * + * Drivers should use this macro to define a &drm_info_list entry to provide a + * debugfs file for dumping the GPU VA space regions and mappings. + * + * For each DRM GPU VA space drivers should call drm_debugfs_gpuva_info() from + * their @show callback. + */ +#define DRM_DEBUGFS_GPUVA_INFO(show, data) {"gpuvas", show, DRIVER_GEM_GPUVA, data} + /** * struct drm_info_list - debugfs info list entry * @@ -134,6 +150,9 @@ void drm_debugfs_add_file(struct drm_device *dev, const char *name, void drm_debugfs_add_files(struct drm_device *dev, const struct drm_debugfs_info *files, int count); + +int drm_debugfs_gpuva_info(struct seq_file *m, + struct drm_gpuva_manager *mgr); #else static inline void drm_debugfs_create_files(const struct drm_info_list *files, int count, struct dentry *root, @@ -155,6 +174,12 @@ static inline void drm_debugfs_add_files(struct drm_device *dev, const struct drm_debugfs_info *files, int count) {} + +static inline int drm_debugfs_gpuva_info(struct seq_file *m, + struct drm_gpuva_manager *mgr) +{ + return 0; +} #endif #endif /* _DRM_DEBUGFS_H_ */ -- 2.34.1