From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 84AF010E4E3 for ; Fri, 18 Aug 2023 10:55:19 +0000 (UTC) From: Marcin Bernatowicz To: igt-dev@lists.freedesktop.org Date: Fri, 18 Aug 2023 10:21:56 +0000 Message-Id: <20230818102156.2335320-3-marcin.bernatowicz@linux.intel.com> In-Reply-To: <20230818102156.2335320-1-marcin.bernatowicz@linux.intel.com> References: <20230818102156.2335320-1-marcin.bernatowicz@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH i-g-t v2 2/2] tests/xe_spin_batch: spin-fixed-duration List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: Basic test for xe_spin with fixed duration. v2: Added assert for expected spinner duration. (Zbyszek) A median of 5x100ms spins duration is computed, which should satisfy CI runs, although better accuracy is achieved with disabled logging (echo 0 > /sys/module/drm/parameters/debug). Signed-off-by: Marcin Bernatowicz --- tests/xe/xe_spin_batch.c | 72 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/tests/xe/xe_spin_batch.c b/tests/xe/xe_spin_batch.c index 26f9daf36..6dcd89558 100644 --- a/tests/xe/xe_spin_batch.c +++ b/tests/xe/xe_spin_batch.c @@ -1,8 +1,10 @@ #include "igt.h" +#include "igt_syncobj.h" #include "lib/intel_reg.h" #include "xe_drm.h" #include "xe/xe_ioctl.h" #include "xe/xe_query.h" +#include "xe/xe_spin.h" /** * TEST: Tests for spin batch submissons. @@ -138,6 +140,73 @@ static void spin_all(int fd, int gt, int class) xe_vm_destroy(fd, vm); } +/** + * SUBTEST: spin-fixed-duration + * Description: Basic test which validates the functionality of xe_spin with fixed duration. + * Run type: FULL + */ +static void xe_spin_fixed_duration(int fd) +{ + uint64_t ahnd; + uint32_t vm; + unsigned int exec_queue; + uint32_t bo; + size_t bo_size; + struct xe_spin *spin; + uint64_t spin_addr; + struct drm_xe_sync sync = { + .handle = syncobj_create(fd, 0), + .flags = DRM_XE_SYNC_SYNCOBJ | DRM_XE_SYNC_SIGNAL, + }; + struct drm_xe_exec exec = { + .num_batch_buffer = 1, + .num_syncs = 1, + .syncs = to_user_pointer(&sync), + }; + struct timespec tv; + const uint64_t duration_ns = NSEC_PER_SEC / 10; /* 100ms */ + double elapsed_ms; + int i; + igt_stats_t stats; + + vm = xe_vm_create(fd, 0, 0); + exec_queue = xe_exec_queue_create_class(fd, vm, DRM_XE_ENGINE_CLASS_COPY); + ahnd = intel_allocator_open(fd, 0, INTEL_ALLOCATOR_RELOC); + bo_size = ALIGN(sizeof(*spin) + xe_cs_prefetch_size(fd), xe_get_default_alignment(fd)); + bo = xe_bo_create(fd, 0, vm, bo_size); + spin = xe_bo_map(fd, bo, bo_size); + spin_addr = intel_allocator_alloc_with_strategy(ahnd, bo, bo_size, 0, ALLOC_STRATEGY_LOW_TO_HIGH); + xe_vm_bind_sync(fd, vm, bo, 0, spin_addr, bo_size); + xe_spin_init_opts(spin, .addr = spin_addr, + .preempt = true, + .ctx_ticks = duration_to_ctx_ticks(fd, 0, duration_ns)); + exec.address = spin_addr; + exec.exec_queue_id = exec_queue; + +#define NSAMPLES 5 + igt_stats_init_with_size(&stats, NSAMPLES); + for (i = 0; i < NSAMPLES; ++i) { + igt_gettime(&tv); + xe_exec(fd, &exec); + xe_spin_wait_started(spin); + igt_assert(syncobj_wait(fd, &sync.handle, 1, INT64_MAX, 0, NULL)); + igt_stats_push_float(&stats, igt_nsec_elapsed(&tv) * 1e-6); + syncobj_reset(fd, &sync.handle, 1); + igt_debug("i=%d %.2fms\n", i, stats.values_f[i]); + } + elapsed_ms = igt_stats_get_median(&stats); + igt_info("%.0fms spin took %.2fms (median)\n", duration_ns * 1e-6, elapsed_ms); + igt_assert(elapsed_ms < duration_ns * 1.5e-6 && elapsed_ms > duration_ns * 0.5e-6); + + xe_vm_unbind_sync(fd, vm, 0, spin_addr, bo_size); + syncobj_destroy(fd, sync.handle); + gem_munmap(spin, bo_size); + gem_close(fd, bo); + xe_exec_queue_destroy(fd, exec_queue); + xe_vm_destroy(fd, vm); + put_ahnd(ahnd); +} + igt_main { struct drm_xe_engine_class_instance *hwe; @@ -163,6 +232,9 @@ igt_main spin_all(fd, gt, class); } + igt_subtest("spin-fixed-duration") + xe_spin_fixed_duration(fd); + igt_fixture drm_close_driver(fd); } -- 2.30.2