From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 59F2910E24E for ; Fri, 9 Jun 2023 09:42:00 +0000 (UTC) From: Riana Tauro To: igt-dev@lists.freedesktop.org Date: Fri, 9 Jun 2023 15:14:57 +0530 Message-Id: <20230609094457.3355182-1-riana.tauro@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH i-g-t] tests/xe: Add basic idle residency test List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: badal.nilawar@intel.com Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: The test reads idle residency within a time interval and checks if its within the tolerance Currently the test checks RC6 Residency Signed-off-by: Riana Tauro --- tests/meson.build | 1 + tests/xe/xe_gt_idle.c | 117 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 118 insertions(+) create mode 100644 tests/xe/xe_gt_idle.c diff --git a/tests/meson.build b/tests/meson.build index c15eb3a08..10273ebf5 100644 --- a/tests/meson.build +++ b/tests/meson.build @@ -254,6 +254,7 @@ xe_progs = [ 'xe_exec_fault_mode', 'xe_exec_reset', 'xe_exec_threads', + 'xe_gt_idle', 'xe_gpgpu_fill', 'xe_guc_pc', 'xe_huc_copy', diff --git a/tests/xe/xe_gt_idle.c b/tests/xe/xe_gt_idle.c new file mode 100644 index 000000000..3a1090ffd --- /dev/null +++ b/tests/xe/xe_gt_idle.c @@ -0,0 +1,117 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2023 Intel Corporation + */ + +/** + * TEST: Test gtidle properties + * Category: Software building block + * Sub-category: Power Management + * Functionality: RC6 + * Test category: functionality test + */ + +#include + +#include "igt.h" +#include "igt_sysfs.h" + +#include "xe/xe_query.h" + +#define SLEEP_DURATION 3 /* in seconds */ + +const double tolerance = 0.1; + +#define assert_within_epsilon(x, ref, tol) \ + igt_assert_f((double)(x) <= (1.0 + (tol)) * (double)(ref) && \ + (double)(x) >= (1.0 - (tol)) * (double)(ref), \ + "'%s' != '%s' (%f not within +%.1f%%/-%.1f%% tolerance of %f)\n",\ + #x, #ref, (double)(x), \ + (tol) * 100.0, (tol) * 100.0, \ + (double)(ref)) + +static bool in_rc6(int sysfs, int gt) +{ + char path[PATH_MAX]; + char rc[8]; + + sprintf(path, "device/gt%d/gtidle/idle_status", gt); + if (igt_sysfs_scanf(sysfs, path, "%s", rc) < 0) + return false; + + return strcmp(rc, "rc6") == 0; +} + +static bool is_rc_dir(int sysfs, int gt) +{ + char path[PATH_MAX], name[NAME_MAX]; + char rc[8]; + + sprintf(path, "device/gt%d/gtidle/name", gt); + if (igt_sysfs_scanf(sysfs, path, "%s", rc) < 0) + return false; + + sprintf(name, "gt%d-rc", gt); + return strcmp(rc, name) == 0; +} + +static unsigned long read_idle_residency(int sysfs, int gt) +{ + unsigned long residency; + char path[PATH_MAX]; + + residency = 0; + sprintf(path, "device/gt%d/gtidle/idle_residency_ms", gt); + igt_assert(igt_sysfs_scanf(sysfs, path, "%lu", &residency) == 1); + return residency; +} + +/** + * SUBTEST: idle-residency + * Description: basic residency test to check idle residency + * within a time interval + * Run type: FULL + */ +static void test_idle(int sysfs, int gt) +{ + struct timespec tv; + unsigned long elapsed_ms, residency_start, residency_end; + + assert(is_rc_dir(sysfs, gt)); + assert(igt_wait(in_rc6(sysfs, gt), 1000, 1)); + + igt_gettime(&tv); + residency_start = read_idle_residency(sysfs, gt); + sleep(SLEEP_DURATION); + residency_end = read_idle_residency(sysfs, gt); + elapsed_ms = igt_nsec_elapsed(&tv) / 1000000; + + igt_info("Measured %lums of idle residency in %lums\n", + residency_end - residency_start, elapsed_ms); + + assert_within_epsilon(residency_end - residency_start, elapsed_ms, tolerance); +} + +igt_main +{ + int fd, gt; + static int sysfs = -1; + + igt_fixture { + fd = drm_open_driver(DRIVER_XE); + + xe_device_get(fd); + sysfs = igt_sysfs_open(fd); + igt_assert(sysfs != -1); + } + + igt_subtest("idle-residency") + xe_for_each_gt(fd, gt) + test_idle(sysfs, gt); + + igt_fixture { + close(sysfs); + xe_device_put(fd); + close(fd); + } +} -- 2.40.0