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 00E0CEB5968 for ; Wed, 11 Feb 2026 05:02:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B569510E177; Wed, 11 Feb 2026 05:02:55 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Ysxvg5AX"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3E97610E177 for ; Wed, 11 Feb 2026 05:02:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770786174; x=1802322174; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ElW1Tbbx8A9g2LEamo65sN+fMU2ZSDICoa6cs7qxSHc=; b=Ysxvg5AXBYDcJmizqejmxghAK5IilOB4CZo3fqx71+4RZ0gTAin5R+Wx dcvdq/yMupp1oYK63J6PGa0viYI1dh+IG1AcTyle+hiMjI8+xOaEsLt12 TYbQvVOVvAk3sLMYDNMPbrrkubai8HilYElqOy6fC/SHNeD9WTt9i9hh7 zFKLIRy0/Mav5CfKcMxcl87RsjWmPhDl7B+1CPs2Y5msseOxjLiXkAik3 bGP0NLNMUk8sVmQpXJC0hYLusrcJa7rhfZOs9g5HIPNxNEtSwswb2ywWt Sefp6ZF2TzIwbnR/07BhWLskSbj/cYtitNA+UGY1xIs/egmh6W2OW1vhE w==; X-CSE-ConnectionGUID: qIjwWz7cTdu04bWiFYf+7g== X-CSE-MsgGUID: yEQx5Nj2S8GHf9ruPRw8iQ== X-IronPort-AV: E=McAfee;i="6800,10657,11697"; a="72113168" X-IronPort-AV: E=Sophos;i="6.21,283,1763452800"; d="scan'208";a="72113168" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2026 21:02:54 -0800 X-CSE-ConnectionGUID: b3jPBcpxQ4u1GO3gbk23YA== X-CSE-MsgGUID: kxro6O1mTmCG+36G1GT6gA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,283,1763452800"; d="scan'208";a="216302567" Received: from tejasupa-desk.iind.intel.com (HELO tejasupa-desk) ([10.190.239.37]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2026 21:02:52 -0800 From: Tejas Upadhyay To: intel-xe@lists.freedesktop.org Cc: matthew.auld@intel.com, matthew.brost@intel.com, himal.prasad.ghimiray@intel.com, Tejas Upadhyay Subject: [RFC PATCH 4/5] drm/xe: Add routine to dump allocated VRAM blocks Date: Wed, 11 Feb 2026 10:31:37 +0530 Message-ID: <20260211050132.1332599-11-tejas.upadhyay@intel.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260211050132.1332599-7-tejas.upadhyay@intel.com> References: <20260211050132.1332599-7-tejas.upadhyay@intel.com> 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" To implement the ability to see allocated blocks under a specific VRAM instance in the drm/xe driver, new api is introduced. While existing structs often show the free block list, this addition provides a comprehensive view of all currently resident VRAM allocations. Dump will look like, [ +0.000003] xe 0000:03:00.0: [drm] 0x00000002f8000000-0x00000002f8800000: 8388608 [ +0.000005] xe 0000:03:00.0: [drm] 0x00000002f8800000-0x00000002f8840000: 262144 [ +0.000004] xe 0000:03:00.0: [drm] 0x00000002f8840000-0x00000002f8860000: 131072 [ +0.000004] xe 0000:03:00.0: [drm] 0x00000002f8860000-0x00000002f8870000: 65536 [ +0.000005] xe 0000:03:00.0: [drm] 0x00000002f9000000-0x00000002f9800000: 8388608 [ +0.000004] xe 0000:03:00.0: [drm] 0x00000002f9800000-0x00000002f9880000: 524288 [ +0.000005] xe 0000:03:00.0: [drm] 0x00000002f9880000-0x00000002f9884000: 16384 [ +0.000004] xe 0000:03:00.0: [drm] 0x00000002f9900000-0x00000002f9980000: 524288 [ +0.000005] xe 0000:03:00.0: [drm] 0x00000002f9980000-0x00000002f9988000: 32768 [ +0.000004] xe 0000:03:00.0: [drm] 0x00000002f9988000-0x00000002f998c000: 16384 Signed-off-by: Tejas Upadhyay --- drivers/gpu/drm/xe/xe_ttm_vram_mgr.c | 36 ++++++++++++++++++++++++++++ drivers/gpu/drm/xe/xe_ttm_vram_mgr.h | 3 +++ 2 files changed, 39 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c index ab8243b17cf3..1ad98ef8b54e 100644 --- a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c +++ b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c @@ -505,6 +505,42 @@ static inline bool contains(u64 s1, u64 e1, u64 s2, u64 e2) return s1 <= s2 && e1 <= e2; } +void xe_ttm_vram_dump_allocated_blocks(struct drm_device *dev, struct drm_buddy *mm, + struct drm_printer *p) +{ + struct drm_buddy_block *block; + LIST_HEAD(dfs); + int i; + + for (i = 0; i < mm->n_roots; ++i) + list_add_tail(&mm->roots[i]->tmp_link, &dfs); + + do { + u64 block_start; + u64 block_end; + + block = list_first_entry_or_null(&dfs, + struct drm_buddy_block, + tmp_link); + if (!block) + break; + + list_del(&block->tmp_link); + + block_start = drm_buddy_block_offset(block); + block_end = block_start + drm_buddy_block_size(mm, block) - 1; + + if (drm_buddy_block_is_allocated(block)) + drm_buddy_block_print(mm, block, p); + + if (drm_buddy_block_is_split(block)) { + list_add(&block->right->tmp_link, &dfs); + list_add(&block->left->tmp_link, &dfs); + } + } while (1); +} +EXPORT_SYMBOL(xe_ttm_vram_dump_allocated_blocks); + static struct ttm_buffer_object *xe_ttm_vram_addr_to_tbo(struct drm_buddy *mm, u64 start) { struct drm_buddy_block *block; diff --git a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.h b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.h index 1d6075411ebf..5872e8b48779 100644 --- a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.h +++ b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.h @@ -12,6 +12,7 @@ enum dma_data_direction; struct xe_device; struct xe_tile; struct xe_vram_region; +struct drm_device; int __xe_ttm_vram_mgr_init(struct xe_device *xe, struct xe_ttm_vram_mgr *mgr, u32 mem_type, u64 size, u64 io_size, @@ -31,6 +32,8 @@ u64 xe_ttm_vram_get_cpu_visible_size(struct ttm_resource_manager *man); void xe_ttm_vram_get_used(struct ttm_resource_manager *man, u64 *used, u64 *used_visible); int xe_ttm_tbo_handle_addr_fault(struct xe_tile *tile, unsigned long addr); +void xe_ttm_vram_dump_allocated_blocks(struct drm_device *dev, struct drm_buddy *mm, + struct drm_printer *p); static inline struct xe_ttm_vram_mgr_resource * to_xe_ttm_vram_mgr_resource(struct ttm_resource *res) { -- 2.52.0