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 CA866F3C991 for ; Tue, 24 Feb 2026 15:28:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7494610E5B6; Tue, 24 Feb 2026 15:28:46 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="L6AB7nbT"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) by gabe.freedesktop.org (Postfix) with ESMTPS id 81D5110E5B6 for ; Tue, 24 Feb 2026 15:28:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1771946925; x=1803482925; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vQHOFqQX1c8rotKTB1gos2bAY5AUnqAY0/VKsAkabBI=; b=L6AB7nbTSWDqop4XkoCZCJoJ+U0kx/2MciAGbCVEUdm+EwYMU4s5IAQ1 5V9faKc///DJ9dB/MBVRU0FeoozgQ5Q+V6MclCoeyK/7EFxfGwZ9V/S+w yXPiQyXdtvylWIkvLzsRswUCCvKac1mF2OaOO3NT9k505CfNiXVTjajb/ pNU3Hd06OoKX8ZDhhMF1BcSIQe/As0+3L2zC7AddgvJTLD/8jZ6w4hp5W h9qCVNkVDz7UUbdIgejg4en6GUbvENU7VpqIF0Kz8sK82hmJwkuweX46L hIeq+uFBG5teztQ5wuU9rgVk4x9WtnnV0Z7Hg/qk0alfKee+zwg3RgFhl A==; X-CSE-ConnectionGUID: LbxpPpbqSeaMajWu717B5g== X-CSE-MsgGUID: KcduhrecTb6WhCtY+ZZODA== X-IronPort-AV: E=McAfee;i="6800,10657,11711"; a="72868313" X-IronPort-AV: E=Sophos;i="6.21,308,1763452800"; d="scan'208";a="72868313" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Feb 2026 07:28:45 -0800 X-CSE-ConnectionGUID: 9noqOZLFRD22/VHXw93LeQ== X-CSE-MsgGUID: nzxJD2TEQ8Wuj8RXfiL5dw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,308,1763452800"; d="scan'208";a="213165964" Received: from varungup-desk.iind.intel.com ([10.190.238.71]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Feb 2026 07:28:43 -0800 From: Arvind Yadav To: igt-dev@lists.freedesktop.org Cc: matthew.brost@intel.com, himal.prasad.ghimiray@intel.com, thomas.hellstrom@linux.intel.com, nishit.sharma@intel.com, pravalika.gurram@intel.com Subject: [PATCH i-g-t v4 8/8] tests/intel/xe_madvise: Add per-vma-protection subtest Date: Tue, 24 Feb 2026 20:57:56 +0530 Message-ID: <20260224152804.1940820-9-arvind.yadav@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260224152804.1940820-1-arvind.yadav@intel.com> References: <20260224152804.1940820-1-arvind.yadav@intel.com> 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" This test validates that a WILLNEED VMA protects a shared BO from being purged even when other VMAs are marked DONTNEED. The test creates a BO shared across two VMs, marks VMA1 as DONTNEED while keeping VMA2 as WILLNEED, then triggers memory pressure. The BO should survive and GPU execution should succeed. After marking both VMAs as DONTNEED and triggering pressure again, the BO should be purged, demonstrating that all VMAs must be DONTNEED for the BO to be purgeable. v4: - Added syncobj_wait() after the second exec. (Nishit) Cc: Matthew Brost Cc: Thomas Hellström Cc: Himal Prasad Ghimiray Reviewed-by: Nishit Sharma Reviewed-by: Pravalika Gurram Signed-off-by: Arvind Yadav --- tests/intel/xe_madvise.c | 119 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) diff --git a/tests/intel/xe_madvise.c b/tests/intel/xe_madvise.c index 0121fa700..18fd8d083 100644 --- a/tests/intel/xe_madvise.c +++ b/tests/intel/xe_madvise.c @@ -607,6 +607,119 @@ static void test_per_vma_tracking(int fd, struct drm_xe_engine_class_instance *h xe_vm_destroy(fd, vm2); } +/** + * SUBTEST: per-vma-protection + * Description: WILLNEED VMA protects BO from purging; both DONTNEED makes BO purgeable + * Test category: functionality test + */ +static void test_per_vma_protection(int fd, struct drm_xe_engine_class_instance *hwe) +{ + uint32_t vm1, vm2, exec_queue, bo, batch_bo, bind_engine; + uint64_t data_addr1 = PURGEABLE_ADDR; + uint64_t data_addr2 = PURGEABLE_ADDR2; + uint64_t batch_addr = PURGEABLE_BATCH_ADDR; + size_t data_size = PURGEABLE_BO_SIZE; + size_t batch_size = PURGEABLE_BO_SIZE; + struct drm_xe_sync sync[2] = { + { .type = DRM_XE_SYNC_TYPE_USER_FENCE, + .flags = DRM_XE_SYNC_FLAG_SIGNAL, + .timeline_value = PURGEABLE_FENCE_VAL }, + { .type = DRM_XE_SYNC_TYPE_SYNCOBJ, + .flags = DRM_XE_SYNC_FLAG_SIGNAL }, + }; + struct drm_xe_exec exec = { + .num_batch_buffer = 1, + .num_syncs = 1, + .syncs = to_user_pointer(&sync[1]), + }; + uint32_t *data, *batch; + uint64_t vm_sync = 0; + uint32_t retained, syncobj; + int b, ret; + + /* Create two VMs and bind shared data BO */ + data = purgeable_setup_two_vms_shared_bo(fd, &vm1, &vm2, &bo, + data_addr1, data_addr2, + data_size, true); + memset(data, 0, data_size); + bind_engine = xe_bind_exec_queue_create(fd, vm2, 0); + + /* Create and bind batch BO in VM2 */ + batch_bo = xe_bo_create(fd, vm2, batch_size, vram_if_possible(fd, 0), + DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM); + batch = xe_bo_map(fd, batch_bo, batch_size); + + sync[0].addr = to_user_pointer(&vm_sync); + vm_sync = 0; + xe_vm_bind_async(fd, vm2, bind_engine, batch_bo, 0, batch_addr, batch_size, sync, 1); + xe_wait_ufence(fd, &vm_sync, PURGEABLE_FENCE_VAL, 0, NSEC_PER_SEC); + + /* Mark VMA1 as DONTNEED, VMA2 stays WILLNEED */ + retained = xe_vm_madvise_purgeable(fd, vm1, data_addr1, data_size, + DRM_XE_VMA_PURGEABLE_STATE_DONTNEED); + igt_assert_eq(retained, 1); + + /* Trigger pressure - BO should survive (VMA2 protects) */ + trigger_memory_pressure(fd, vm1); + + retained = xe_vm_madvise_purgeable(fd, vm2, data_addr2, data_size, + DRM_XE_VMA_PURGEABLE_STATE_WILLNEED); + igt_assert_eq(retained, 1); + + /* GPU workload - should succeed */ + b = 0; + batch[b++] = MI_STORE_DWORD_IMM_GEN4; + batch[b++] = data_addr2; + batch[b++] = data_addr2 >> 32; + batch[b++] = PURGEABLE_TEST_PATTERN; + batch[b++] = MI_BATCH_BUFFER_END; + + syncobj = syncobj_create(fd, 0); + sync[1].handle = syncobj; + exec_queue = xe_exec_queue_create(fd, vm2, hwe, 0); + exec.exec_queue_id = exec_queue; + exec.address = batch_addr; + + ret = __xe_exec(fd, &exec); + igt_assert_eq(ret, 0); + igt_assert(syncobj_wait(fd, &syncobj, 1, INT64_MAX, 0, NULL)); + + munmap(data, data_size); + data = xe_bo_map(fd, bo, data_size); + igt_assert_eq(data[0], PURGEABLE_TEST_PATTERN); + + /* Mark both VMAs DONTNEED */ + retained = xe_vm_madvise_purgeable(fd, vm2, data_addr2, data_size, + DRM_XE_VMA_PURGEABLE_STATE_DONTNEED); + igt_assert_eq(retained, 1); + + /* Trigger pressure - BO should be purged */ + trigger_memory_pressure(fd, vm1); + + retained = xe_vm_madvise_purgeable(fd, vm2, data_addr2, data_size, + DRM_XE_VMA_PURGEABLE_STATE_WILLNEED); + igt_assert_eq(retained, 0); + + /* GPU workload - should fail or succeed with NULL rebind */ + batch[3] = PURGEABLE_DEAD_PATTERN; + + ret = __xe_exec(fd, &exec); + if (ret == 0) { + /* Exec succeeded, wait for completion before cleanup */ + syncobj_wait(fd, &syncobj, 1, INT64_MAX, 0, NULL); + } + + munmap(data, data_size); + munmap(batch, batch_size); + gem_close(fd, bo); + gem_close(fd, batch_bo); + syncobj_destroy(fd, syncobj); + xe_exec_queue_destroy(fd, bind_engine); + xe_exec_queue_destroy(fd, exec_queue); + xe_vm_destroy(fd, vm1); + xe_vm_destroy(fd, vm2); +} + int igt_main() { struct drm_xe_engine_class_instance *hwe; @@ -647,6 +760,12 @@ int igt_main() break; } + igt_subtest("per-vma-protection") + xe_for_each_engine(fd, hwe) { + test_per_vma_protection(fd, hwe); + break; + } + igt_fixture() { xe_device_put(fd); drm_close_driver(fd); -- 2.43.0