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 DB4F9F588E4 for ; Mon, 20 Apr 2026 15:00:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8D99410E688; Mon, 20 Apr 2026 15:00:23 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Nt3TpQkQ"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) by gabe.freedesktop.org (Postfix) with ESMTPS id EE1A210E0E2 for ; Mon, 20 Apr 2026 15:00:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1776697211; x=1808233211; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=br+WZuhasKFaU0ASV1KQQ41OS2+7cbS31O9N5Y6teKU=; b=Nt3TpQkQoILs+HftOMM+G/LsQxnmb1tYpdSCN91BktY6tRKZsJjiu8X3 qUZQ5N0LTyG2WIZvbcwQ3MGQ/MTFuLTFfm5aR7ZxBl4kvxneW6evbC5+V fs9a85HmFgJpB71n5mIFkAphXiNSXkZXV0xV3FgmnrAhcodVau4awFNlS R3cvij62A6LWBsEv152WsMYAXzpHmMq7a86hXdIca+P7EdCTy6xNA6U4I go38w99vjkmYafHdi8BI4re4gmyj7HPUsYlR0Vf3DZIBtAG3cqZTD9n6w G08l4YYb+GiyqaeT4mFYm8nSA2heCSIZvRdjgcAvSAVGj3JpSYa2tcAyD g==; X-CSE-ConnectionGUID: ASwu5n9pSNiDnvUZ9Zy3tg== X-CSE-MsgGUID: U0KMVBSmSjSirYxFOUbuAg== X-IronPort-AV: E=McAfee;i="6800,10657,11762"; a="77489157" X-IronPort-AV: E=Sophos;i="6.23,190,1770624000"; d="scan'208";a="77489157" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Apr 2026 08:00:10 -0700 X-CSE-ConnectionGUID: glr+CJmvRwevI9w5IiihsA== X-CSE-MsgGUID: 0zuQS0vxQTC/t811pxe2xA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,190,1770624000"; d="scan'208";a="231622172" Received: from dut6245dg2frd.fm.intel.com ([10.80.54.109]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Apr 2026 08:00:10 -0700 From: Sobin Thomas To: igt-dev@lists.freedesktop.org, thomas.hellstrom@intel.com Cc: nishit.sharma@intel.com, Sobin Thomas Subject: [PATCH i-g-t v11 0/2] tests/intel/xe_vm: Add support for overcommit tests Date: Mon, 20 Apr 2026 14:59:59 +0000 Message-ID: <20260420150001.270588-1-sobin.thomas@intel.com> X-Mailer: git-send-email 2.52.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: igt-dev@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development mailing list for IGT GPU Tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" Current tests focus on VM creation and basic mode selection, but do not cover overcommit scenarios. This change adds tests to verify overcommit behavior across different VM modes. Non-fault mode tests: - vram-lr-defer: DEFER_BACKING rejects overcommit at bind time - vram-lr-external-nodefer: Long-running mode with an external BO and no deferred backing - vram-no-lr: Non-long-running mode Fault mode tests: - vram-lr-fault: Fault handling allows graceful overcommit via page faults - vram-lr-fault-no-overcommit: Verifies NO_VM_OVERCOMMIT blocks same-VM BO eviction during VM_BIND, while still allowing eviction during page-fault OOM handling These tests validate that VMs respond correctly to memory pressure based on their configuration—by rejecting at bind time, failing during execution, or handling overcommit gracefully via page faults. Currently, overcommit behavior is tested for VRAM only. -------------------------------------- Link (historical context): https://patchwork.freedesktop.org/series/161557/ Sobin Thomas (2): lib/xe: Add failable variant of xe_vm_bind_lr_sync() tests/intel/xe_vm: Add support for overcommit tests lib/xe/xe_ioctl.c | 35 ++-- lib/xe/xe_ioctl.h | 2 + tests/intel/xe_vm.c | 396 +++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 422 insertions(+), 11 deletions(-) -- 2.52.0