Re: [PATCH i-g-t] Revert "tests/xe: Add system_allocator test"

[Matthew Brost <matthew.brost@intel.com>]

On Fri, Apr 25, 2025 at 08:04:52PM +0200, Zbigniew Kempczyński wrote:
> On Fri, Apr 25, 2025 at 07:46:29PM +0200, Kamil Konieczny wrote:
> > This reverts commit 41ee4d698fd87085494ceeec1985a2b99222c5b0.
> > 
> > Fix compilation failure on our containers:
> > ../tests/intel/xe_exec_system_allocator.c: In function test_exec:
> > ../tests/intel/xe_exec_system_allocator.c:1210:21: error: MREMAP_DONTUNMAP undeclared (first use in this function); did you mean DONTUNMAP?
> >       remap_flags |= MREMAP_DONTUNMAP;
> > 
> > Cc: Matthew Brost <matthew.brost@intel.com>
> > Cc: Jonathan Cavitt <jonathan.cavitt@intel.com>
> > Cc: Francois Dugast <francois.dugast@intel.com>
> > Signed-off-by: Kamil Konieczny <kamil.konieczny@linux.intel.com>
> 
> @Matt - please check compilation status on the other containers before
> merging.
> 

Are we really compiling on kernels older than 5.7? Then yea this won't
work, see below [1] for MREMAP_DONTUNMAP.

I don't think a revert is the correct solution here. Maybe an ifdef
instead? Let me post something...

Matt

[1] https://man7.org/linux/man-pages/man2/mremap.2.html


> For this revert:
> 
> Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> 
> --
> Zbigniew
> 
> > ---
> >  lib/xe/xe_ioctl.c                      |   12 -
> >  lib/xe/xe_ioctl.h                      |    1 -
> >  tests/intel/xe_exec_system_allocator.c | 1849 ------------------------
> >  tests/meson.build                      |    1 -
> >  4 files changed, 1863 deletions(-)
> >  delete mode 100644 tests/intel/xe_exec_system_allocator.c
> > 
> > diff --git a/lib/xe/xe_ioctl.c b/lib/xe/xe_ioctl.c
> > index 785fc9184..fb8c4aef1 100644
> > --- a/lib/xe/xe_ioctl.c
> > +++ b/lib/xe/xe_ioctl.c
> > @@ -440,18 +440,6 @@ void *xe_bo_map(int fd, uint32_t bo, size_t size)
> >  	return __xe_bo_map(fd, bo, size, PROT_WRITE);
> >  }
> >  
> > -void *xe_bo_map_fixed(int fd, uint32_t bo, size_t size, uint64_t addr)
> > -{
> > -	uint64_t mmo;
> > -	void *map;
> > -
> > -	mmo = xe_bo_mmap_offset(fd, bo);
> > -	map = mmap((void *)addr, size, PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, mmo);
> > -	igt_assert(map != MAP_FAILED);
> > -
> > -	return map;
> > -}
> > -
> >  void *xe_bo_mmap_ext(int fd, uint32_t bo, size_t size, int prot)
> >  {
> >  	return __xe_bo_map(fd, bo, size, prot);
> > diff --git a/lib/xe/xe_ioctl.h b/lib/xe/xe_ioctl.h
> > index 554a33c9c..9bdf73b2b 100644
> > --- a/lib/xe/xe_ioctl.h
> > +++ b/lib/xe/xe_ioctl.h
> > @@ -86,7 +86,6 @@ uint32_t xe_exec_queue_create_class(int fd, uint32_t vm, uint16_t class);
> >  void xe_exec_queue_destroy(int fd, uint32_t exec_queue);
> >  uint64_t xe_bo_mmap_offset(int fd, uint32_t bo);
> >  void *xe_bo_map(int fd, uint32_t bo, size_t size);
> > -void *xe_bo_map_fixed(int fd, uint32_t bo, size_t size, long unsigned int addr);
> >  void *xe_bo_mmap_ext(int fd, uint32_t bo, size_t size, int prot);
> >  int __xe_exec(int fd, struct drm_xe_exec *exec);
> >  void xe_exec(int fd, struct drm_xe_exec *exec);
> > diff --git a/tests/intel/xe_exec_system_allocator.c b/tests/intel/xe_exec_system_allocator.c
> > deleted file mode 100644
> > index 297915cfc..000000000
> > --- a/tests/intel/xe_exec_system_allocator.c
> > +++ /dev/null
> > @@ -1,1849 +0,0 @@
> > -// SPDX-License-Identifier: MIT
> > -/*
> > - * Copyright © 2024-2025 Intel Corporation
> > - */
> > -
> > -/**
> > - * TEST: Basic tests for execbuf functionality using system allocator
> > - * Category: Core
> > - * Mega feature: USM
> > - * Sub-category: System allocator
> > - * Functionality: fault mode, system allocator
> > - * GPU: LNL, BMG, PVC
> > - */
> > -
> > -#include <fcntl.h>
> > -#include <linux/mman.h>
> > -#include <time.h>
> > -
> > -#include "igt.h"
> > -#include "lib/igt_syncobj.h"
> > -#include "lib/intel_reg.h"
> > -#include "xe_drm.h"
> > -
> > -#include "xe/xe_ioctl.h"
> > -#include "xe/xe_query.h"
> > -#include <string.h>
> > -
> > -#define USER_FENCE_VALUE	0xdeadbeefdeadbeefull
> > -#define QUARTER_SEC		(NSEC_PER_SEC / 4)
> > -#define FIVE_SEC		(5LL * NSEC_PER_SEC)
> > -
> > -struct batch_data {
> > -	uint32_t batch[16];
> > -	uint64_t pad;
> > -	uint32_t data;
> > -	uint32_t expected_data;
> > -};
> > -
> > -#define WRITE_VALUE(data__, i__)	({			\
> > -	if (!(data__)->expected_data)				\
> > -		(data__)->expected_data = rand() << 12 | (i__);	\
> > -	(data__)->expected_data;				\
> > -})
> > -#define READ_VALUE(data__)	((data__)->expected_data)
> > -
> > -static void __write_dword(uint32_t *batch, uint64_t sdi_addr, uint32_t wdata,
> > -			int *idx)
> > -{
> > -	batch[(*idx)++] = MI_STORE_DWORD_IMM_GEN4;
> > -	batch[(*idx)++] = sdi_addr;
> > -	batch[(*idx)++] = sdi_addr >> 32;
> > -	batch[(*idx)++] = wdata;
> > -}
> > -
> > -static void write_dword(uint32_t *batch, uint64_t sdi_addr, uint32_t wdata,
> > -			int *idx)
> > -{
> > -	__write_dword(batch, sdi_addr, wdata, idx);
> > -	batch[(*idx)++] = MI_BATCH_BUFFER_END;
> > -}
> > -
> > -static void check_all_pages(void *ptr, uint64_t alloc_size, uint64_t stride,
> > -			    pthread_barrier_t *barrier)
> > -{
> > -	int i, n_writes = alloc_size / stride;
> > -
> > -	for (i = 0; i < n_writes; ++i) {
> > -		struct batch_data *data = ptr + i * stride;
> > -
> > -		igt_assert_eq(data->data, READ_VALUE(data));
> > -
> > -		if (barrier)
> > -			pthread_barrier_wait(barrier);
> > -	}
> > -}
> > -
> > -static char sync_file[] = "/tmp/xe_exec_system_allocator_syncXXXXXX";
> > -static int sync_fd;
> > -
> > -static void open_sync_file(void)
> > -{
> > -	sync_fd = mkstemp(sync_file);
> > -}
> > -
> > -static void close_sync_file(void)
> > -{
> > -	close(sync_fd);
> > -}
> > -
> > -struct process_data {
> > -	pthread_mutex_t mutex;
> > -	pthread_cond_t cond;
> > -	pthread_barrier_t barrier;
> > -	bool go;
> > -};
> > -
> > -static void wait_pdata(struct process_data *pdata)
> > -{
> > -	pthread_mutex_lock(&pdata->mutex);
> > -	while (!pdata->go)
> > -		pthread_cond_wait(&pdata->cond, &pdata->mutex);
> > -	pthread_mutex_unlock(&pdata->mutex);
> > -}
> > -
> > -static void init_pdata(struct process_data *pdata, int n_engine)
> > -{
> > -	pthread_mutexattr_t mutex_attr;
> > -	pthread_condattr_t cond_attr;
> > -	pthread_barrierattr_t barrier_attr;
> > -
> > -	pthread_mutexattr_init(&mutex_attr);
> > -	pthread_mutexattr_setpshared(&mutex_attr, PTHREAD_PROCESS_SHARED);
> > -	pthread_mutex_init(&pdata->mutex, &mutex_attr);
> > -
> > -	pthread_condattr_init(&cond_attr);
> > -	pthread_condattr_setpshared(&cond_attr, PTHREAD_PROCESS_SHARED);
> > -	pthread_cond_init(&pdata->cond, &cond_attr);
> > -
> > -	pthread_barrierattr_init(&barrier_attr);
> > -	pthread_barrierattr_setpshared(&barrier_attr, PTHREAD_PROCESS_SHARED);
> > -	pthread_barrier_init(&pdata->barrier, &barrier_attr, n_engine);
> > -
> > -	pdata->go = false;
> > -}
> > -
> > -static void signal_pdata(struct process_data *pdata)
> > -{
> > -	pthread_mutex_lock(&pdata->mutex);
> > -	pdata->go = true;
> > -	pthread_cond_broadcast(&pdata->cond);
> > -	pthread_mutex_unlock(&pdata->mutex);
> > -}
> > -
> > -/* many_alloc flags */
> > -#define MIX_BO_ALLOC		(0x1 << 0)
> > -#define BENCHMARK		(0x1 << 1)
> > -#define CPU_FAULT_THREADS	(0x1 << 2)
> > -#define CPU_FAULT_PROCESS	(0x1 << 3)
> > -#define CPU_FAULT_SAME_PAGE	(0x1 << 4)
> > -
> > -static void process_check(void *ptr, uint64_t alloc_size, uint64_t stride,
> > -			  unsigned int flags)
> > -{
> > -	struct process_data *pdata;
> > -	int map_fd;
> > -
> > -	map_fd = open(sync_file, O_RDWR, 0x666);
> > -	pdata = mmap(NULL, sizeof(*pdata), PROT_READ |
> > -		     PROT_WRITE, MAP_SHARED, map_fd, 0);
> > -	wait_pdata(pdata);
> > -
> > -	if (flags & CPU_FAULT_SAME_PAGE)
> > -		check_all_pages(ptr, alloc_size, stride, &pdata->barrier);
> > -	else
> > -		check_all_pages(ptr, alloc_size, stride, NULL);
> > -
> > -	close(map_fd);
> > -	munmap(pdata, sizeof(*pdata));
> > -}
> > -
> > -/*
> > - * Partition checking of results in chunks which causes multiple processes to
> > - * fault same VRAM allocation in parallel.
> > - */
> > -static void
> > -check_all_pages_process(void *ptr, uint64_t alloc_size, uint64_t stride,
> > -			int n_process, unsigned int flags)
> > -{
> > -	struct process_data *pdata;
> > -	int map_fd, i;
> > -
> > -	map_fd = open(sync_file, O_RDWR | O_CREAT, 0x666);
> > -	posix_fallocate(map_fd, 0, sizeof(*pdata));
> > -	pdata = mmap(NULL, sizeof(*pdata), PROT_READ |
> > -		     PROT_WRITE, MAP_SHARED, map_fd, 0);
> > -
> > -	init_pdata(pdata, n_process);
> > -
> > -	for (i = 0; i < n_process; ++i) {
> > -		igt_fork(child, 1)
> > -			if (flags & CPU_FAULT_SAME_PAGE)
> > -				process_check(ptr, alloc_size, stride, flags);
> > -			else
> > -				process_check(ptr + stride * i, alloc_size,
> > -					      stride * n_process, flags);
> > -	}
> > -
> > -	signal_pdata(pdata);
> > -	igt_waitchildren();
> > -
> > -	close(map_fd);
> > -	munmap(pdata, sizeof(*pdata));
> > -}
> > -
> > -struct thread_check_data {
> > -	pthread_t thread;
> > -	pthread_mutex_t *mutex;
> > -	pthread_cond_t *cond;
> > -	pthread_barrier_t *barrier;
> > -	void *ptr;
> > -	uint64_t alloc_size;
> > -	uint64_t stride;
> > -	bool *go;
> > -};
> > -
> > -static void *thread_check(void *data)
> > -{
> > -	struct thread_check_data *t = data;
> > -
> > -	pthread_mutex_lock(t->mutex);
> > -	while (!*t->go)
> > -		pthread_cond_wait(t->cond, t->mutex);
> > -	pthread_mutex_unlock(t->mutex);
> > -
> > -	check_all_pages(t->ptr, t->alloc_size, t->stride, t->barrier);
> > -
> > -	return NULL;
> > -}
> > -
> > -/*
> > - * Partition checking of results in chunks which causes multiple threads to
> > - * fault same VRAM allocation in parallel.
> > - */
> > -static void
> > -check_all_pages_threads(void *ptr, uint64_t alloc_size, uint64_t stride,
> > -			int n_threads, unsigned int flags)
> > -{
> > -	struct thread_check_data *threads_check_data;
> > -	pthread_mutex_t mutex;
> > -	pthread_cond_t cond;
> > -	pthread_barrier_t barrier;
> > -	int i;
> > -	bool go = false;
> > -
> > -	threads_check_data = calloc(n_threads, sizeof(*threads_check_data));
> > -	igt_assert(threads_check_data);
> > -
> > -	pthread_mutex_init(&mutex, 0);
> > -	pthread_cond_init(&cond, 0);
> > -	pthread_barrier_init(&barrier, 0, n_threads);
> > -
> > -	for (i = 0; i < n_threads; ++i) {
> > -		threads_check_data[i].mutex = &mutex;
> > -		threads_check_data[i].cond = &cond;
> > -		if (flags & CPU_FAULT_SAME_PAGE) {
> > -			threads_check_data[i].barrier = &barrier;
> > -			threads_check_data[i].ptr = ptr;
> > -			threads_check_data[i].alloc_size = alloc_size;
> > -			threads_check_data[i].stride = stride;
> > -		} else {
> > -			threads_check_data[i].barrier = NULL;
> > -			threads_check_data[i].ptr = ptr + stride * i;
> > -			threads_check_data[i].alloc_size = alloc_size;
> > -			threads_check_data[i].stride = n_threads * stride;
> > -		}
> > -		threads_check_data[i].go = &go;
> > -
> > -		pthread_create(&threads_check_data[i].thread, 0, thread_check,
> > -			       &threads_check_data[i]);
> > -	}
> > -
> > -	pthread_mutex_lock(&mutex);
> > -	go = true;
> > -	pthread_cond_broadcast(&cond);
> > -	pthread_mutex_unlock(&mutex);
> > -
> > -	for (i = 0; i < n_threads; ++i)
> > -		pthread_join(threads_check_data[i].thread, NULL);
> > -	free(threads_check_data);
> > -}
> > -
> > -static void touch_all_pages(int fd, uint32_t exec_queue, void *ptr,
> > -			    uint64_t alloc_size, uint64_t stride,
> > -			    struct timespec *tv, uint64_t *submit)
> > -{
> > -	struct drm_xe_sync sync[1] = {
> > -		{ .type = DRM_XE_SYNC_TYPE_USER_FENCE,
> > -		  .flags = DRM_XE_SYNC_FLAG_SIGNAL,
> > -		  .timeline_value = USER_FENCE_VALUE },
> > -	};
> > -	struct drm_xe_exec exec = {
> > -		.num_batch_buffer = 1,
> > -		.num_syncs = 0,
> > -		.exec_queue_id = exec_queue,
> > -		.syncs = to_user_pointer(&sync),
> > -	};
> > -	uint64_t addr = to_user_pointer(ptr);
> > -	int i, ret, n_writes = alloc_size / stride;
> > -	u64 *exec_ufence = NULL;
> > -	int64_t timeout = FIVE_SEC;
> > -
> > -	exec_ufence = mmap(NULL, SZ_4K, PROT_READ |
> > -			   PROT_WRITE, MAP_SHARED |
> > -			   MAP_ANONYMOUS, -1, 0);
> > -	igt_assert(exec_ufence != MAP_FAILED);
> > -	memset(exec_ufence, 0, SZ_4K);
> > -	sync[0].addr = to_user_pointer(exec_ufence);
> > -
> > -	for (i = 0; i < n_writes; ++i, addr += stride) {
> > -		struct batch_data *data = ptr + i * stride;
> > -		uint64_t sdi_offset = (char *)&data->data - (char *)data;
> > -		uint64_t sdi_addr = addr + sdi_offset;
> > -		int b = 0;
> > -
> > -		write_dword(data->batch, sdi_addr, WRITE_VALUE(data, i), &b);
> > -		igt_assert(b <= ARRAY_SIZE(data->batch));
> > -	}
> > -
> > -	igt_nsec_elapsed(tv);
> > -	*submit = igt_nsec_elapsed(tv);
> > -
> > -	addr = to_user_pointer(ptr);
> > -	for (i = 0; i < n_writes; ++i, addr += stride) {
> > -		struct batch_data *data = ptr + i * stride;
> > -		uint64_t batch_offset = (char *)&data->batch - (char *)data;
> > -		uint64_t batch_addr = addr + batch_offset;
> > -
> > -		exec.address = batch_addr;
> > -		if (i + 1 == n_writes)
> > -			exec.num_syncs = 1;
> > -		xe_exec(fd, &exec);
> > -	}
> > -
> > -	ret = __xe_wait_ufence(fd, exec_ufence, USER_FENCE_VALUE, exec_queue,
> > -			       &timeout);
> > -	if (ret) {
> > -		igt_info("FAIL EXEC_UFENCE_ADDR: 0x%016llx\n", sync[0].addr);
> > -		igt_info("FAIL EXEC_UFENCE: EXPECTED=0x%016llx, ACTUAL=0x%016lx\n",
> > -			 USER_FENCE_VALUE, exec_ufence[0]);
> > -
> > -		addr = to_user_pointer(ptr);
> > -		for (i = 0; i < n_writes; ++i, addr += stride) {
> > -			struct batch_data *data = ptr + i * stride;
> > -			uint64_t batch_offset = (char *)&data->batch - (char *)data;
> > -			uint64_t batch_addr = addr + batch_offset;
> > -			uint64_t sdi_offset = (char *)&data->data - (char *)data;
> > -			uint64_t sdi_addr = addr + sdi_offset;
> > -
> > -			igt_info("FAIL BATCH_ADDR: 0x%016lx\n", batch_addr);
> > -			igt_info("FAIL SDI_ADDR: 0x%016lx\n", sdi_addr);
> > -			igt_info("FAIL SDI_ADDR (in batch): 0x%016lx\n",
> > -				 (((u64)data->batch[2]) << 32) | data->batch[1]);
> > -			igt_info("FAIL DATA: EXPECTED=0x%08x, ACTUAL=0x%08x\n",
> > -				 data->expected_data, data->data);
> > -		}
> > -		igt_assert_eq(ret, 0);
> > -	}
> > -	munmap(exec_ufence, SZ_4K);
> > -}
> > -
> > -static int va_bits;
> > -
> > -#define bind_system_allocator(__sync, __num_sync)			\
> > -	__xe_vm_bind_assert(fd, vm, 0,					\
> > -			    0, 0, 0, 0x1ull << va_bits,			\
> > -			    DRM_XE_VM_BIND_OP_MAP,			\
> > -			    DRM_XE_VM_BIND_FLAG_CPU_ADDR_MIRROR,	\
> > -			    (__sync), (__num_sync), 0, 0)
> > -
> > -#define unbind_system_allocator()				\
> > -	__xe_vm_bind(fd, vm, 0, 0, 0, 0, 0x1ull << va_bits,	\
> > -		     DRM_XE_VM_BIND_OP_UNMAP, 0,		\
> > -		     NULL, 0, 0, 0, 0)
> > -
> > -#define odd(__i)	(__i & 1)
> > -
> > -struct aligned_alloc_type {
> > -	void *__ptr;
> > -	void *ptr;
> > -	size_t __size;
> > -	size_t size;
> > -};
> > -
> > -static struct aligned_alloc_type __aligned_alloc(size_t alignment, size_t size)
> > -{
> > -	struct aligned_alloc_type aligned_alloc_type;
> > -
> > -	aligned_alloc_type.__ptr = mmap(NULL, alignment + size, PROT_NONE, MAP_PRIVATE |
> > -			      MAP_ANONYMOUS, -1, 0);
> > -	igt_assert(aligned_alloc_type.__ptr != MAP_FAILED);
> > -
> > -	aligned_alloc_type.ptr = (void *)ALIGN((uint64_t)aligned_alloc_type.__ptr, alignment);
> > -	aligned_alloc_type.size = size;
> > -	aligned_alloc_type.__size = size + alignment;
> > -
> > -	return aligned_alloc_type;
> > -}
> > -
> > -static void __aligned_free(struct aligned_alloc_type  *aligned_alloc_type)
> > -{
> > -	munmap(aligned_alloc_type->__ptr, aligned_alloc_type->__size);
> > -}
> > -
> > -static void __aligned_partial_free(struct aligned_alloc_type  *aligned_alloc_type)
> > -{
> > -	size_t begin_size = (size_t)(aligned_alloc_type->ptr - aligned_alloc_type->__ptr);
> > -
> > -	if (begin_size)
> > -		munmap(aligned_alloc_type->__ptr, begin_size);
> > -	if (aligned_alloc_type->__size - aligned_alloc_type->size - begin_size)
> > -		munmap(aligned_alloc_type->ptr + aligned_alloc_type->size,
> > -		       aligned_alloc_type->__size - aligned_alloc_type->size - begin_size);
> > -}
> > -
> > -/**
> > - * SUBTEST: unaligned-alloc
> > - * Description: allocate unaligned sizes of memory
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: fault-benchmark
> > - * Description: Benchmark how long GPU / CPU take
> > - * Test category: performance test
> > - *
> > - * SUBTEST: fault-threads-benchmark
> > - * Description: Benchmark how long GPU / CPU take, reading results with multiple threads
> > - * Test category: performance and functionality test
> > - *
> > - * SUBTEST: fault-threads-same-page-benchmark
> > - * Description: Benchmark how long GPU / CPU take, reading results with multiple threads, hammer same page
> > - * Test category: performance and functionality test
> > - *
> > - * SUBTEST: fault-process-benchmark
> > - * Description: Benchmark how long GPU / CPU take, reading results with multiple process
> > - * Test category: performance and functionality test
> > - *
> > - * SUBTEST: fault-process-same-page-benchmark
> > - * Description: Benchmark how long GPU / CPU take, reading results with multiple process, hammer same page
> > - * Test category: performance and functionality test
> > - *
> > - * SUBTEST: evict-malloc
> > - * Description: trigger eviction of VRAM allocated via malloc
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: evict-malloc-mix-bo
> > - * Description: trigger eviction of VRAM allocated via malloc and BO create
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: processes-evict-malloc
> > - * Description: multi-process trigger eviction of VRAM allocated via malloc
> > - * Test category: stress test
> > - *
> > - * SUBTEST: processes-evict-malloc-mix-bo
> > - * Description: multi-process trigger eviction of VRAM allocated via malloc and BO create
> > - * Test category: stress test
> > - */
> > -
> > -static void
> > -many_allocs(int fd, struct drm_xe_engine_class_instance *eci,
> > -	    uint64_t total_alloc, uint64_t alloc_size, uint64_t stride,
> > -	    pthread_barrier_t *barrier, unsigned int flags)
> > -{
> > -	uint32_t vm, exec_queue;
> > -	int num_allocs = flags & BENCHMARK ? 1 :
> > -		(9 * (total_alloc / alloc_size)) / 8;
> > -	struct aligned_alloc_type *allocs;
> > -	uint32_t *bos = NULL;
> > -	struct timespec tv = {};
> > -	uint64_t submit, read, elapsed;
> > -	int i;
> > -
> > -	vm = xe_vm_create(fd, DRM_XE_VM_CREATE_FLAG_LR_MODE |
> > -			  DRM_XE_VM_CREATE_FLAG_FAULT_MODE, 0);
> > -	exec_queue = xe_exec_queue_create(fd, vm, eci, 0);
> > -
> > -	bind_system_allocator(NULL, 0);
> > -
> > -	allocs = malloc(sizeof(*allocs) * num_allocs);
> > -	igt_assert(allocs);
> > -	memset(allocs, 0, sizeof(*allocs) * num_allocs);
> > -
> > -	if (flags & MIX_BO_ALLOC) {
> > -		bos = malloc(sizeof(*bos) * num_allocs);
> > -		igt_assert(bos);
> > -		memset(bos, 0, sizeof(*bos) * num_allocs);
> > -	}
> > -
> > -	for (i = 0; i < num_allocs; ++i) {
> > -		struct aligned_alloc_type alloc;
> > -
> > -		if (flags & MIX_BO_ALLOC && odd(i)) {
> > -			uint32_t bo_flags =
> > -				DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM;
> > -
> > -			alloc = __aligned_alloc(SZ_2M, alloc_size);
> > -			igt_assert(alloc.ptr);
> > -
> > -			bos[i] = xe_bo_create(fd, vm, alloc_size,
> > -					      vram_if_possible(fd, eci->gt_id),
> > -					      bo_flags);
> > -			alloc.ptr = xe_bo_map_fixed(fd, bos[i], alloc_size,
> > -						    to_user_pointer(alloc.ptr));
> > -			xe_vm_bind_async(fd, vm, 0, bos[i], 0,
> > -					 to_user_pointer(alloc.ptr),
> > -					 alloc_size, 0, 0);
> > -		} else {
> > -			alloc.ptr = aligned_alloc(SZ_2M, alloc_size);
> > -			igt_assert(alloc.ptr);
> > -		}
> > -		allocs[i] = alloc;
> > -
> > -		touch_all_pages(fd, exec_queue, allocs[i].ptr, alloc_size, stride,
> > -				&tv, &submit);
> > -	}
> > -
> > -	if (barrier)
> > -		pthread_barrier_wait(barrier);
> > -
> > -	for (i = 0; i < num_allocs; ++i) {
> > -		if (flags & BENCHMARK)
> > -			read = igt_nsec_elapsed(&tv);
> > -#define NUM_CHECK_THREADS	8
> > -		if (flags & CPU_FAULT_PROCESS)
> > -			check_all_pages_process(allocs[i].ptr, alloc_size, stride,
> > -						NUM_CHECK_THREADS, flags);
> > -		else if (flags & CPU_FAULT_THREADS)
> > -			check_all_pages_threads(allocs[i].ptr, alloc_size, stride,
> > -						NUM_CHECK_THREADS, flags);
> > -		else
> > -			check_all_pages(allocs[i].ptr, alloc_size, stride, NULL);
> > -		if (flags & BENCHMARK) {
> > -			elapsed = igt_nsec_elapsed(&tv);
> > -			igt_info("Execution took %.3fms (submit %.1fus, read %.1fus, total %.1fus, read_total %.1fus)\n",
> > -				 1e-6 * elapsed, 1e-3 * submit, 1e-3 * read,
> > -				 1e-3 * (elapsed - submit),
> > -				 1e-3 * (elapsed - read));
> > -		}
> > -		if (bos && bos[i]) {
> > -			__aligned_free(allocs + i);
> > -			gem_close(fd, bos[i]);
> > -		} else {
> > -			free(allocs[i].ptr);
> > -		}
> > -	}
> > -	if (bos)
> > -		free(bos);
> > -	free(allocs);
> > -	xe_exec_queue_destroy(fd, exec_queue);
> > -	xe_vm_destroy(fd, vm);
> > -}
> > -
> > -static void process_evict(struct drm_xe_engine_class_instance *hwe,
> > -			  uint64_t total_alloc, uint64_t alloc_size,
> > -			  uint64_t stride, unsigned int flags)
> > -{
> > -	struct process_data *pdata;
> > -	int map_fd;
> > -	int fd;
> > -
> > -	map_fd = open(sync_file, O_RDWR, 0x666);
> > -	pdata = mmap(NULL, sizeof(*pdata), PROT_READ |
> > -		     PROT_WRITE, MAP_SHARED, map_fd, 0);
> > -	wait_pdata(pdata);
> > -
> > -	fd = drm_open_driver(DRIVER_XE);
> > -	many_allocs(fd, hwe, total_alloc, alloc_size, stride, &pdata->barrier,
> > -		    flags);
> > -	drm_close_driver(fd);
> > -
> > -	close(map_fd);
> > -	munmap(pdata, sizeof(*pdata));
> > -}
> > -
> > -static void
> > -processes_evict(int fd, uint64_t alloc_size, uint64_t stride,
> > -		unsigned int flags)
> > -{
> > -	struct drm_xe_engine_class_instance *hwe;
> > -	struct process_data *pdata;
> > -	int n_engine_gt[2] = { 0, 0 }, n_engine = 0;
> > -	int map_fd;
> > -
> > -	map_fd = open(sync_file, O_RDWR | O_CREAT, 0x666);
> > -	posix_fallocate(map_fd, 0, sizeof(*pdata));
> > -	pdata = mmap(NULL, sizeof(*pdata), PROT_READ |
> > -		     PROT_WRITE, MAP_SHARED, map_fd, 0);
> > -
> > -	xe_for_each_engine(fd, hwe) {
> > -		igt_assert(hwe->gt_id < 2);
> > -		n_engine_gt[hwe->gt_id]++;
> > -		n_engine++;
> > -	}
> > -
> > -	init_pdata(pdata, n_engine);
> > -
> > -	xe_for_each_engine(fd, hwe) {
> > -		igt_fork(child, 1)
> > -			process_evict(hwe,
> > -				      xe_visible_vram_size(fd, hwe->gt_id) /
> > -				      n_engine_gt[hwe->gt_id], alloc_size,
> > -				      stride, flags);
> > -	}
> > -
> > -	signal_pdata(pdata);
> > -	igt_waitchildren();
> > -
> > -	close(map_fd);
> > -	munmap(pdata, sizeof(*pdata));
> > -}
> > -
> > -#define CPU_FAULT	(0x1 << 0)
> > -#define REMAP		(0x1 << 1)
> > -#define MIDDLE		(0x1 << 2)
> > -
> > -/**
> > - * SUBTEST: partial-munmap-cpu-fault
> > - * Description: munmap partially with cpu access in between
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: partial-munmap-no-cpu-fault
> > - * Description: munmap partially with no cpu access in between
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: partial-remap-cpu-fault
> > - * Description: remap partially with cpu access in between
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: partial-remap-no-cpu-fault
> > - * Description: remap partially with no cpu access in between
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: partial-middle-munmap-cpu-fault
> > - * Description: munmap middle with cpu access in between
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: partial-middle-munmap-no-cpu-fault
> > - * Description: munmap middle with no cpu access in between
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: partial-middle-remap-cpu-fault
> > - * Description: remap middle with cpu access in between
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: partial-middle-remap-no-cpu-fault
> > - * Description: remap middle with no cpu access in between
> > - * Test category: functionality test
> > - */
> > -
> > -static void
> > -partial(int fd, struct drm_xe_engine_class_instance *eci, unsigned int flags)
> > -{
> > -	struct drm_xe_sync sync[1] = {
> > -		{ .type = DRM_XE_SYNC_TYPE_USER_FENCE, .flags = DRM_XE_SYNC_FLAG_SIGNAL,
> > -	          .timeline_value = USER_FENCE_VALUE },
> > -	};
> > -	struct drm_xe_exec exec = {
> > -		.num_batch_buffer = 1,
> > -		.num_syncs = 1,
> > -		.syncs = to_user_pointer(sync),
> > -	};
> > -	struct {
> > -		uint32_t batch[16];
> > -		uint64_t pad;
> > -		uint64_t vm_sync;
> > -		uint64_t exec_sync;
> > -		uint32_t data;
> > -		uint32_t expected_data;
> > -	} *data;
> > -	size_t bo_size = SZ_2M, unmap_offset = 0;
> > -	uint32_t vm, exec_queue;
> > -	u64 *exec_ufence = NULL;
> > -	int i;
> > -	void *old, *new = NULL;
> > -	struct aligned_alloc_type alloc;
> > -
> > -	if (flags & MIDDLE)
> > -		unmap_offset = bo_size / 4;
> > -
> > -	vm = xe_vm_create(fd, DRM_XE_VM_CREATE_FLAG_LR_MODE |
> > -			  DRM_XE_VM_CREATE_FLAG_FAULT_MODE, 0);
> > -
> > -	alloc = __aligned_alloc(bo_size, bo_size);
> > -	igt_assert(alloc.ptr);
> > -
> > -	data = mmap(alloc.ptr, bo_size, PROT_READ | PROT_WRITE,
> > -		    MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
> > -	igt_assert(data != MAP_FAILED);
> > -	memset(data, 0, bo_size);
> > -	old = data;
> > -
> > -	exec_queue = xe_exec_queue_create(fd, vm, eci, 0);
> > -
> > -	sync[0].addr = to_user_pointer(&data[0].vm_sync);
> > -	bind_system_allocator(sync, 1);
> > -	xe_wait_ufence(fd, &data[0].vm_sync, USER_FENCE_VALUE, 0, FIVE_SEC);
> > -	data[0].vm_sync = 0;
> > -
> > -	exec_ufence = mmap(NULL, SZ_4K, PROT_READ |
> > -			   PROT_WRITE, MAP_SHARED |
> > -			   MAP_ANONYMOUS, -1, 0);
> > -	igt_assert(exec_ufence != MAP_FAILED);
> > -	memset(exec_ufence, 0, SZ_4K);
> > -
> > -	for (i = 0; i < 2; i++) {
> > -		uint64_t addr = to_user_pointer(data);
> > -		uint64_t sdi_offset = (char *)&data[i].data - (char *)data;
> > -		uint64_t sdi_addr = addr + sdi_offset;
> > -		int b = 0;
> > -
> > -		write_dword(data[i].batch, sdi_addr, WRITE_VALUE(&data[i], i), &b);
> > -		igt_assert(b <= ARRAY_SIZE(data[i].batch));
> > -
> > -		if (!i)
> > -			data = old + unmap_offset + bo_size / 2;
> > -	}
> > -
> > -	data = old;
> > -	exec.exec_queue_id = exec_queue;
> > -
> > -	for (i = 0; i < 2; i++) {
> > -		uint64_t addr = to_user_pointer(data);
> > -		uint64_t batch_offset = (char *)&data[i].batch - (char *)data;
> > -		uint64_t batch_addr = addr + batch_offset;
> > -
> > -		sync[0].addr = new ? to_user_pointer(new) :
> > -			to_user_pointer(exec_ufence);
> > -		exec.address = batch_addr;
> > -		xe_exec(fd, &exec);
> > -
> > -		xe_wait_ufence(fd, new ?: exec_ufence, USER_FENCE_VALUE,
> > -			       exec_queue, FIVE_SEC);
> > -		if (i || (flags & CPU_FAULT))
> > -			igt_assert_eq(data[i].data, READ_VALUE(&data[i]));
> > -		exec_ufence[0] = 0;
> > -
> > -		if (!i) {
> > -			data = old + unmap_offset + bo_size / 2;
> > -			munmap(old + unmap_offset, bo_size / 2);
> > -			if (flags & REMAP) {
> > -				new = mmap(old + unmap_offset, bo_size / 2,
> > -					   PROT_READ | PROT_WRITE,
> > -					   MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED |
> > -					   MAP_LOCKED, -1, 0);
> > -				igt_assert(new != MAP_FAILED);
> > -			}
> > -		}
> > -	}
> > -
> > -	xe_exec_queue_destroy(fd, exec_queue);
> > -	munmap(exec_ufence, SZ_4K);
> > -	__aligned_free(&alloc);
> > -	if (new)
> > -		munmap(new, bo_size / 2);
> > -	xe_vm_destroy(fd, vm);
> > -}
> > -
> > -#define MAX_N_EXEC_QUEUES	16
> > -
> > -#define MMAP			(0x1 << 0)
> > -#define NEW			(0x1 << 1)
> > -#define BO_UNMAP		(0x1 << 2)
> > -#define FREE			(0x1 << 3)
> > -#define BUSY			(0x1 << 4)
> > -#define BO_MAP			(0x1 << 5)
> > -#define RACE			(0x1 << 6)
> > -#define SKIP_MEMSET		(0x1 << 7)
> > -#define FAULT			(0x1 << 8)
> > -#define FILE_BACKED		(0x1 << 9)
> > -#define LOCK			(0x1 << 10)
> > -#define MMAP_SHARED		(0x1 << 11)
> > -#define HUGE_PAGE		(0x1 << 12)
> > -#define SHARED_ALLOC		(0x1 << 13)
> > -#define FORK_READ		(0x1 << 14)
> > -#define FORK_READ_AFTER		(0x1 << 15)
> > -#define MREMAP			(0x1 << 16)
> > -#define DONTUNMAP		(0x1 << 17)
> > -#define READ_ONLY_REMAP		(0x1 << 18)
> > -#define SYNC_EXEC		(0x1 << 19)
> > -#define EVERY_OTHER_CHECK	(0x1 << 20)
> > -#define MULTI_FAULT		(0x1 << 21)
> > -
> > -#define N_MULTI_FAULT		4
> > -
> > -/**
> > - * SUBTEST: once-%s
> > - * Description: Run %arg[1] system allocator test only once
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: once-large-%s
> > - * Description: Run %arg[1] system allocator test only once with large allocation
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: twice-%s
> > - * Description: Run %arg[1] system allocator test twice
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: twice-large-%s
> > - * Description: Run %arg[1] system allocator test twice with large allocation
> > - * Test category: functionality test
> > - *
> > - * SUBTEST: many-%s
> > - * Description: Run %arg[1] system allocator test many times
> > - * Test category: stress test
> > - *
> > - * SUBTEST: many-stride-%s
> > - * Description: Run %arg[1] system allocator test many times with a stride on each exec
> > - * Test category: stress test
> > - *
> > - * SUBTEST: many-execqueues-%s
> > - * Description: Run %arg[1] system allocator test on many exec_queues
> > - * Test category: stress test
> > - *
> > - * SUBTEST: many-large-%s
> > - * Description: Run %arg[1] system allocator test many times with large allocations
> > - * Test category: stress test
> > - *
> > - * SUBTEST: many-large-execqueues-%s
> > - * Description: Run %arg[1] system allocator test on many exec_queues with large allocations
> > - *
> > - * SUBTEST: threads-many-%s
> > - * Description: Run %arg[1] system allocator threaded test many times
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-many-stride-%s
> > - * Description: Run %arg[1] system allocator threaded test many times with a stride on each exec
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-many-execqueues-%s
> > - * Description: Run %arg[1] system allocator threaded test on many exec_queues
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-many-large-%s
> > - * Description: Run %arg[1] system allocator threaded test many times with large allocations
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-many-large-execqueues-%s
> > - * Description: Run %arg[1] system allocator threaded test on many exec_queues with large allocations
> > - *
> > - * SUBTEST: threads-shared-vm-many-%s
> > - * Description: Run %arg[1] system allocator threaded, shared vm test many times
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-shared-vm-many-stride-%s
> > - * Description: Run %arg[1] system allocator threaded, shared vm test many times with a stride on each exec
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-shared-vm-many-execqueues-%s
> > - * Description: Run %arg[1] system allocator threaded, shared vm test on many exec_queues
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-shared-vm-many-large-%s
> > - * Description: Run %arg[1] system allocator threaded, shared vm test many times with large allocations
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-shared-vm-many-large-execqueues-%s
> > - * Description: Run %arg[1] system allocator threaded, shared vm test on many exec_queues with large allocations
> > - * Test category: stress test
> > - *
> > - * SUBTEST: process-many-%s
> > - * Description: Run %arg[1] system allocator multi-process test many times
> > - * Test category: stress test
> > - *
> > - * SUBTEST: process-many-stride-%s
> > - * Description: Run %arg[1] system allocator multi-process test many times with a stride on each exec
> > - * Test category: stress test
> > - *
> > - * SUBTEST: process-many-execqueues-%s
> > - * Description: Run %arg[1] system allocator multi-process test on many exec_queues
> > - * Test category: stress test
> > - *
> > - * SUBTEST: process-many-large-%s
> > - * Description: Run %arg[1] system allocator multi-process test many times with large allocations
> > - * Test category: stress test
> > - *
> > - * SUBTEST: process-many-large-execqueues-%s
> > - * Description: Run %arg[1] system allocator multi-process test on many exec_queues with large allocations
> > - *
> > - * SUBTEST: fault
> > - * Description: use a bad system allocator address resulting in a fault
> > - * Test category: bad input
> > - *
> > - * arg[1]:
> > - *
> > - * @malloc:				malloc single buffer for all execs, issue a command which will trigger multiple faults
> > - * @malloc-multi-fault:			malloc single buffer for all execs
> > - * @malloc-fork-read:			malloc single buffer for all execs, fork a process to read test output
> > - * @malloc-fork-read-after:		malloc single buffer for all execs, fork a process to read test output, check again after fork returns in parent
> > - * @malloc-mlock:			malloc and mlock single buffer for all execs
> > - * @malloc-race:			malloc single buffer for all execs with race between cpu and gpu access
> > - * @malloc-bo-unmap:			malloc single buffer for all execs, bind and unbind a BO to same address before execs
> > - * @malloc-busy:			malloc single buffer for all execs, try to unbind while buffer valid
> > - * @mmap:				mmap single buffer for all execs
> > - * @mmap-remap:				mmap and mremap a buffer for all execs
> > - * @mmap-remap-dontunmap:		mmap and mremap a buffer with dontunmap flag for all execs
> > - * @mmap-remap-ro:			mmap and mremap a read-only buffer for all execs
> > - * @mmap-remap-ro-dontunmap:		mmap and mremap a read-only buffer with dontunmap flag for all execs
> > - * @mmap-remap-eocheck:			mmap and mremap a buffer for all execs, check data every other loop iteration
> > - * @mmap-remap-dontunmap-eocheck:	mmap and mremap a buffer with dontunmap flag for all execs, check data every other loop iteration
> > - * @mmap-remap-ro-eocheck:		mmap and mremap a read-only buffer for all execs, check data every other loop iteration
> > - * @mmap-remap-ro-dontunmap-eocheck:	mmap and mremap a read-only buffer with dontunmap flag for all execs, check data every other loop iteration
> > - * @mmap-huge:				mmap huge page single buffer for all execs
> > - * @mmap-shared:			mmap shared single buffer for all execs
> > - * @mmap-shared-remap:			mmap shared and mremap a buffer for all execs
> > - * @mmap-shared-remap-dontunmap:	mmap shared and mremap a buffer with dontunmap flag for all execs
> > - * @mmap-shared-remap-eocheck:		mmap shared and mremap a buffer for all execs, check data every other loop iteration
> > - * @mmap-shared-remap-dontunmap-eocheck:	mmap shared and mremap a buffer with dontunmap flag for all execs, check data every other loop iteration
> > - * @mmap-mlock:				mmap and mlock single buffer for all execs
> > - * @mmap-file:				mmap single buffer, with file backing, for all execs
> > - * @mmap-file-mlock:			mmap and mlock single buffer, with file backing, for all execs
> > - * @mmap-race:				mmap single buffer for all execs with race between cpu and gpu access
> > - * @free:				malloc and free buffer for each exec
> > - * @free-race:				malloc and free buffer for each exec with race between cpu and gpu access
> > - * @new:				malloc a new buffer for each exec
> > - * @new-race:				malloc a new buffer for each exec with race between cpu and gpu access
> > - * @new-bo-map:				malloc a new buffer or map BO for each exec
> > - * @new-busy:				malloc a new buffer for each exec, try to unbind while buffers valid
> > - * @mmap-free:				mmap and free buffer for each exec
> > - * @mmap-free-huge:			mmap huge page and free buffer for each exec
> > - * @mmap-free-race:			mmap and free buffer for each exec with race between cpu and gpu access
> > - * @mmap-new:				mmap a new buffer for each exec
> > - * @mmap-new-huge:			mmap huge page a new buffer for each exec
> > - * @mmap-new-race:			mmap a new buffer for each exec with race between cpu and gpu access
> > - * @malloc-nomemset:			malloc single buffer for all execs, skip memset of buffers
> > - * @malloc-mlock-nomemset:		malloc and mlock single buffer for all execs, skip memset of buffers
> > - * @malloc-race-nomemset:		malloc single buffer for all execs with race between cpu and gpu access, skip memset of buffers
> > - * @malloc-bo-unmap-nomemset:		malloc single buffer for all execs, bind and unbind a BO to same address before execs, skip memset of buffers
> > - * @malloc-busy-nomemset:		malloc single buffer for all execs, try to unbind while buffer valid, skip memset of buffers
> > - * @mmap-nomemset:			mmap single buffer for all execs, skip memset of buffers
> > - * @mmap-huge-nomemset:			mmap huge page single buffer for all execs, skip memset of buffers
> > - * @mmap-shared-nomemset:		mmap shared single buffer for all execs, skip memset of buffers
> > - * @mmap-mlock-nomemset:		mmap and mlock single buffer for all execs, skip memset of buffers
> > - * @mmap-file-nomemset:			mmap single buffer, with file backing, for all execs, skip memset of buffers
> > - * @mmap-file-mlock-nomemset:		mmap and mlock single buffer, with file backing, for all execs, skip memset of buffers
> > - * @mmap-race-nomemset:			mmap single buffer for all execs with race between cpu and gpu access, skip memset of buffers
> > - * @free-nomemset:			malloc and free buffer for each exec, skip memset of buffers
> > - * @free-race-nomemset:			malloc and free buffer for each exec with race between cpu and gpu access, skip memset of buffers
> > - * @new-nomemset:			malloc a new buffer for each exec, skip memset of buffers
> > - * @new-race-nomemset:			malloc a new buffer for each exec with race between cpu and gpu access, skip memset of buffers
> > - * @new-bo-map-nomemset:		malloc a new buffer or map BO for each exec, skip memset of buffers
> > - * @new-busy-nomemset:			malloc a new buffer for each exec, try to unbind while buffers valid, skip memset of buffers
> > - * @mmap-free-nomemset:			mmap and free buffer for each exec, skip memset of buffers
> > - * @mmap-free-huge-nomemset:		mmap huge page and free buffer for each exec, skip memset of buffers
> > - * @mmap-free-race-nomemset:		mmap and free buffer for each exec with race between cpu and gpu access, skip memset of buffers
> > - * @mmap-new-nomemset:			mmap a new buffer for each exec, skip memset of buffers
> > - * @mmap-new-huge-nomemset:		mmap huge page new buffer for each exec, skip memset of buffers
> > - * @mmap-new-race-nomemset:		mmap a new buffer for each exec with race between cpu and gpu access, skip memset of buffers
> > - *
> > - * SUBTEST: threads-shared-vm-shared-alloc-many-stride-malloc
> > - * Description: Create multiple threads with a shared VM triggering faults on different hardware engines to same addresses
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-shared-vm-shared-alloc-many-stride-malloc-race
> > - * Description: Create multiple threads with a shared VM triggering faults on different hardware engines to same addresses, racing between CPU and GPU access
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-shared-alloc-many-stride-malloc
> > - * Description: Create multiple threads with a faults on different hardware engines to same addresses
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-shared-alloc-many-stride-malloc-sync
> > - * Description: Create multiple threads with a faults on different hardware engines to same addresses, syncing on each exec
> > - * Test category: stress test
> > - *
> > - * SUBTEST: threads-shared-alloc-many-stride-malloc-race
> > - * Description: Create multiple threads with a faults on different hardware engines to same addresses, racing between CPU and GPU access
> > - * Test category: stress test
> > - */
> > -
> > -struct test_exec_data {
> > -	uint32_t batch[32];
> > -	uint64_t pad;
> > -	uint64_t vm_sync;
> > -	uint64_t exec_sync;
> > -	uint32_t data;
> > -	uint32_t expected_data;
> > -};
> > -
> > -static void
> > -test_exec(int fd, struct drm_xe_engine_class_instance *eci,
> > -	  int n_exec_queues, int n_execs, size_t bo_size,
> > -	  size_t stride, uint32_t vm, void *alloc, pthread_barrier_t *barrier,
> > -	  unsigned int flags)
> > -{
> > -	uint64_t addr;
> > -	struct drm_xe_sync sync[1] = {
> > -		{ .type = DRM_XE_SYNC_TYPE_USER_FENCE, .flags = DRM_XE_SYNC_FLAG_SIGNAL,
> > -	          .timeline_value = USER_FENCE_VALUE },
> > -	};
> > -	struct drm_xe_exec exec = {
> > -		.num_batch_buffer = 1,
> > -		.num_syncs = 1,
> > -		.syncs = to_user_pointer(sync),
> > -	};
> > -	uint32_t exec_queues[MAX_N_EXEC_QUEUES];
> > -	struct test_exec_data *data, *next_data = NULL;
> > -	uint32_t bo_flags;
> > -	uint32_t bo = 0;
> > -	void **pending_free;
> > -	u64 *exec_ufence = NULL;
> > -	int i, j, b, file_fd = -1, prev_idx;
> > -	bool free_vm = false;
> > -	size_t aligned_size = bo_size ?: xe_get_default_alignment(fd);
> > -	size_t orig_size = bo_size;
> > -	struct aligned_alloc_type aligned_alloc_type;
> > -
> > -	if (flags & MULTI_FAULT) {
> > -		if (!bo_size)
> > -			return;
> > -
> > -		bo_size *= N_MULTI_FAULT;
> > -	}
> > -
> > -	if (flags & SHARED_ALLOC)
> > -		return;
> > -
> > -	if (flags & EVERY_OTHER_CHECK && odd(n_execs))
> > -		return;
> > -
> > -	if (flags & EVERY_OTHER_CHECK)
> > -		igt_assert(flags & MREMAP);
> > -
> > -	igt_assert(n_exec_queues <= MAX_N_EXEC_QUEUES);
> > -
> > -	if (flags & NEW && !(flags & FREE)) {
> > -		pending_free = malloc(sizeof(*pending_free) * n_execs);
> > -		igt_assert(pending_free);
> > -		memset(pending_free, 0, sizeof(*pending_free) * n_execs);
> > -	}
> > -
> > -	if (!vm) {
> > -		vm = xe_vm_create(fd, DRM_XE_VM_CREATE_FLAG_LR_MODE |
> > -				  DRM_XE_VM_CREATE_FLAG_FAULT_MODE, 0);
> > -		free_vm = true;
> > -	}
> > -	if (!bo_size) {
> > -		if (!stride) {
> > -			bo_size = sizeof(*data) * n_execs;
> > -			bo_size = xe_bb_size(fd, bo_size);
> > -		} else {
> > -			bo_size = stride * n_execs * sizeof(*data);
> > -			bo_size = xe_bb_size(fd, bo_size);
> > -		}
> > -	}
> > -	if (flags & HUGE_PAGE) {
> > -		aligned_size = ALIGN(aligned_size, SZ_2M);
> > -		bo_size = ALIGN(bo_size, SZ_2M);
> > -	}
> > -
> > -	if (alloc) {
> > -		data = alloc;
> > -	} else {
> > -		if (flags & MMAP) {
> > -			int mmap_flags = MAP_FIXED;
> > -
> > -			aligned_alloc_type = __aligned_alloc(aligned_size, bo_size);
> > -			data = aligned_alloc_type.ptr;
> > -			igt_assert(data);
> > -			__aligned_partial_free(&aligned_alloc_type);
> > -
> > -			if (flags & MMAP_SHARED)
> > -				mmap_flags |= MAP_SHARED;
> > -			else
> > -				mmap_flags |= MAP_PRIVATE;
> > -
> > -			if (flags & HUGE_PAGE)
> > -				mmap_flags |= MAP_HUGETLB | MAP_HUGE_2MB;
> > -
> > -			if (flags & FILE_BACKED) {
> > -				char name[] = "/tmp/xe_exec_system_allocator_datXXXXXX";
> > -
> > -				igt_assert(!(flags & NEW));
> > -
> > -				file_fd = mkstemp(name);
> > -				posix_fallocate(file_fd, 0, bo_size);
> > -			} else {
> > -				mmap_flags |= MAP_ANONYMOUS;
> > -			}
> > -
> > -			data = mmap(data, bo_size, PROT_READ |
> > -				    PROT_WRITE, mmap_flags, file_fd, 0);
> > -			igt_assert(data != MAP_FAILED);
> > -		} else {
> > -			data = aligned_alloc(aligned_size, bo_size);
> > -			igt_assert(data);
> > -		}
> > -		if (!(flags & SKIP_MEMSET))
> > -			memset(data, 0, bo_size);
> > -		if (flags & LOCK) {
> > -			igt_assert(!(flags & NEW));
> > -			mlock(data, bo_size);
> > -		}
> > -	}
> > -
> > -	for (i = 0; i < n_exec_queues; i++)
> > -		exec_queues[i] = xe_exec_queue_create(fd, vm, eci, 0);
> > -
> > -	sync[0].addr = to_user_pointer(&data[0].vm_sync);
> > -	if (free_vm) {
> > -		bind_system_allocator(sync, 1);
> > -		xe_wait_ufence(fd, &data[0].vm_sync, USER_FENCE_VALUE, 0, FIVE_SEC);
> > -	}
> > -	data[0].vm_sync = 0;
> > -
> > -	addr = to_user_pointer(data);
> > -
> > -	if (flags & BO_UNMAP) {
> > -		bo_flags = DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM;
> > -		bo = xe_bo_create(fd, vm, bo_size,
> > -				  vram_if_possible(fd, eci->gt_id), bo_flags);
> > -		xe_vm_bind_async(fd, vm, 0, bo, 0, addr, bo_size, 0, 0);
> > -
> > -		__xe_vm_bind_assert(fd, vm, 0,
> > -				    0, 0, addr, bo_size,
> > -				    DRM_XE_VM_BIND_OP_MAP,
> > -				    DRM_XE_VM_BIND_FLAG_CPU_ADDR_MIRROR, sync,
> > -				    1, 0, 0);
> > -		xe_wait_ufence(fd, &data[0].vm_sync, USER_FENCE_VALUE, 0,
> > -			       FIVE_SEC);
> > -		data[0].vm_sync = 0;
> > -		gem_close(fd, bo);
> > -		bo = 0;
> > -	}
> > -
> > -	if (!(flags & RACE)) {
> > -		exec_ufence = mmap(NULL, SZ_4K, PROT_READ |
> > -				   PROT_WRITE, MAP_SHARED |
> > -				   MAP_ANONYMOUS, -1, 0);
> > -		igt_assert(exec_ufence != MAP_FAILED);
> > -		memset(exec_ufence, 0, SZ_4K);
> > -	}
> > -
> > -	for (i = 0; i < n_execs; i++) {
> > -		int idx = !stride ? i : i * stride, next_idx = !stride
> > -			? (i + 1) : (i + 1) * stride;
> > -		uint64_t batch_offset = (char *)&data[idx].batch - (char *)data;
> > -		uint64_t batch_addr = addr + batch_offset;
> > -		uint64_t sdi_offset = (char *)&data[idx].data - (char *)data;
> > -		uint64_t sdi_addr = addr + sdi_offset;
> > -		int e = i % n_exec_queues, err;
> > -		bool fault_inject = (FAULT & flags) && i == n_execs / 2;
> > -		bool fault_injected = (FAULT & flags) && i > n_execs;
> > -
> > -		if (barrier)
> > -			pthread_barrier_wait(barrier);
> > -
> > -		if (flags & MULTI_FAULT) {
> > -			b = 0;
> > -			for (j = 0; j < N_MULTI_FAULT - 1; ++j)
> > -				__write_dword(data[idx].batch,
> > -					      sdi_addr + j * orig_size,
> > -					      WRITE_VALUE(&data[idx], idx), &b);
> > -			write_dword(data[idx].batch, sdi_addr + j * orig_size,
> > -				    WRITE_VALUE(&data[idx], idx), &b);
> > -			igt_assert(b <= ARRAY_SIZE(data[idx].batch));
> > -		} else if (!(flags & EVERY_OTHER_CHECK)) {
> > -			b = 0;
> > -			write_dword(data[idx].batch, sdi_addr,
> > -				    WRITE_VALUE(&data[idx], idx), &b);
> > -			igt_assert(b <= ARRAY_SIZE(data[idx].batch));
> > -		} else if (flags & EVERY_OTHER_CHECK && !odd(i)) {
> > -			b = 0;
> > -			write_dword(data[idx].batch, sdi_addr,
> > -				    WRITE_VALUE(&data[idx], idx), &b);
> > -			igt_assert(b <= ARRAY_SIZE(data[idx].batch));
> > -
> > -			aligned_alloc_type = __aligned_alloc(aligned_size, bo_size);
> > -			next_data = aligned_alloc_type.ptr;
> > -			igt_assert(next_data);
> > -			__aligned_partial_free(&aligned_alloc_type);
> > -
> > -			b = 0;
> > -			write_dword(data[next_idx].batch,
> > -				    to_user_pointer(next_data) +
> > -				    (char *)&data[next_idx].data - (char *)data,
> > -				    WRITE_VALUE(&data[next_idx], next_idx), &b);
> > -			igt_assert(b <= ARRAY_SIZE(data[next_idx].batch));
> > -		}
> > -
> > -		if (!exec_ufence)
> > -			data[idx].exec_sync = 0;
> > -
> > -		sync[0].addr = exec_ufence ? to_user_pointer(exec_ufence) :
> > -			addr + (char *)&data[idx].exec_sync - (char *)data;
> > -
> > -		exec.exec_queue_id = exec_queues[e];
> > -		if (fault_inject)
> > -			exec.address = batch_addr * 2;
> > -		else
> > -			exec.address = batch_addr;
> > -
> > -		if (fault_injected) {
> > -			err = __xe_exec(fd, &exec);
> > -			igt_assert(err == -ENOENT);
> > -		} else {
> > -			xe_exec(fd, &exec);
> > -		}
> > -
> > -		if (barrier)
> > -			pthread_barrier_wait(barrier);
> > -
> > -		if (fault_inject || fault_injected) {
> > -			int64_t timeout = QUARTER_SEC;
> > -
> > -			err = __xe_wait_ufence(fd, exec_ufence ? exec_ufence :
> > -					       &data[idx].exec_sync,
> > -					       USER_FENCE_VALUE,
> > -					       exec_queues[e], &timeout);
> > -			igt_assert(err == -ETIME || err == -EIO);
> > -		} else {
> > -			xe_wait_ufence(fd, exec_ufence ? exec_ufence :
> > -				       &data[idx].exec_sync, USER_FENCE_VALUE,
> > -				       exec_queues[e], FIVE_SEC);
> > -			if (flags & LOCK && !i)
> > -				munlock(data, bo_size);
> > -
> > -			if (flags & MREMAP) {
> > -				void *old = data;
> > -				int remap_flags = MREMAP_MAYMOVE | MREMAP_FIXED;
> > -
> > -				if (flags & DONTUNMAP)
> > -					remap_flags |= MREMAP_DONTUNMAP;
> > -
> > -				if (flags & READ_ONLY_REMAP)
> > -					igt_assert(!mprotect(old, bo_size,
> > -							     PROT_READ));
> > -
> > -				if (!next_data) {
> > -					aligned_alloc_type = __aligned_alloc(aligned_size,
> > -								    bo_size);
> > -					data = aligned_alloc_type.ptr;
> > -					__aligned_partial_free(&aligned_alloc_type);
> > -				} else {
> > -					data = next_data;
> > -				}
> > -				next_data = NULL;
> > -				igt_assert(data);
> > -
> > -				data = mremap(old, bo_size, bo_size,
> > -					      remap_flags, data);
> > -				igt_assert(data != MAP_FAILED);
> > -
> > -				if (flags & READ_ONLY_REMAP)
> > -					igt_assert(!mprotect(data, bo_size,
> > -							     PROT_READ |
> > -							     PROT_WRITE));
> > -
> > -				addr = to_user_pointer(data);
> > -				if (flags & DONTUNMAP)
> > -					munmap(old, bo_size);
> > -			}
> > -
> > -			if (!(flags & EVERY_OTHER_CHECK) || odd(i)) {
> > -				if (flags & FORK_READ) {
> > -					igt_fork(child, 1)
> > -						igt_assert_eq(data[idx].data,
> > -							      READ_VALUE(&data[idx]));
> > -					if (!(flags & FORK_READ_AFTER))
> > -						igt_assert_eq(data[idx].data,
> > -							      READ_VALUE(&data[idx]));
> > -					igt_waitchildren();
> > -					if (flags & FORK_READ_AFTER)
> > -						igt_assert_eq(data[idx].data,
> > -							      READ_VALUE(&data[idx]));
> > -				} else {
> > -					igt_assert_eq(data[idx].data,
> > -						      READ_VALUE(&data[idx]));
> > -
> > -					if (flags & MULTI_FAULT) {
> > -						for (j = 1; j < N_MULTI_FAULT; ++j) {
> > -							struct test_exec_data *__data =
> > -								((void *)data) + j * orig_size;
> > -
> > -							igt_assert_eq(__data[idx].data,
> > -								      READ_VALUE(&data[idx]));
> > -						}
> > -					}
> > -				}
> > -				if (flags & EVERY_OTHER_CHECK)
> > -					igt_assert_eq(data[prev_idx].data,
> > -						      READ_VALUE(&data[prev_idx]));
> > -			}
> > -		}
> > -
> > -		if (exec_ufence)
> > -			exec_ufence[0] = 0;
> > -
> > -		if (bo) {
> > -			__xe_vm_bind_assert(fd, vm, 0,
> > -					    0, 0, addr, bo_size,
> > -					    DRM_XE_VM_BIND_OP_MAP,
> > -					    DRM_XE_VM_BIND_FLAG_CPU_ADDR_MIRROR,
> > -					    NULL, 0, 0, 0);
> > -			munmap(data, bo_size);
> > -			gem_close(fd, bo);
> > -		}
> > -
> > -		if (flags & NEW) {
> > -			if (flags & MMAP) {
> > -				if (flags & FREE)
> > -					munmap(data, bo_size);
> > -				else
> > -					pending_free[i] = data;
> > -				data = mmap(NULL, bo_size, PROT_READ |
> > -					    PROT_WRITE, MAP_SHARED |
> > -					    MAP_ANONYMOUS, -1, 0);
> > -				igt_assert(data != MAP_FAILED);
> > -			} else if (flags & BO_MAP && odd(i)) {
> > -				if (!bo) {
> > -					if (flags & FREE)
> > -						free(data);
> > -					else
> > -						pending_free[i] = data;
> > -				}
> > -
> > -				aligned_alloc_type = __aligned_alloc(aligned_size, bo_size);
> > -				data = aligned_alloc_type.ptr;
> > -				igt_assert(data);
> > -				__aligned_partial_free(&aligned_alloc_type);
> > -
> > -				bo_flags = DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM;
> > -				bo = xe_bo_create(fd, vm, bo_size,
> > -						  vram_if_possible(fd, eci->gt_id),
> > -						  bo_flags);
> > -				data = xe_bo_map_fixed(fd, bo, bo_size,
> > -						       to_user_pointer(data));
> > -
> > -				xe_vm_bind_async(fd, vm, 0, bo, 0,
> > -						 to_user_pointer(data),
> > -						 bo_size, 0, 0);
> > -			} else {
> > -				if (!bo) {
> > -					if (flags & FREE)
> > -						free(data);
> > -					else
> > -						pending_free[i] = data;
> > -				}
> > -				bo = 0;
> > -				data = aligned_alloc(aligned_size, bo_size);
> > -				igt_assert(data);
> > -			}
> > -			addr = to_user_pointer(data);
> > -			if (!(flags & SKIP_MEMSET))
> > -				memset(data, 0, bo_size);
> > -		}
> > -
> > -		prev_idx = idx;
> > -	}
> > -
> > -	if (bo) {
> > -		__xe_vm_bind_assert(fd, vm, 0,
> > -				    0, 0, addr, bo_size,
> > -				    DRM_XE_VM_BIND_OP_MAP,
> > -				    DRM_XE_VM_BIND_FLAG_CPU_ADDR_MIRROR,
> > -				    NULL, 0, 0, 0);
> > -		munmap(data, bo_size);
> > -		data = NULL;
> > -		gem_close(fd, bo);
> > -	}
> > -
> > -	if (flags & BUSY)
> > -		igt_assert_eq(unbind_system_allocator(), -EBUSY);
> > -
> > -	for (i = 0; i < n_exec_queues; i++)
> > -		xe_exec_queue_destroy(fd, exec_queues[i]);
> > -
> > -	if (exec_ufence)
> > -		munmap(exec_ufence, SZ_4K);
> > -
> > -	if (flags & LOCK)
> > -		munlock(data, bo_size);
> > -
> > -	if (file_fd != -1)
> > -		close(file_fd);
> > -
> > -	if (flags & NEW && !(flags & FREE)) {
> > -		for (i = 0; i < n_execs; i++) {
> > -			if (!pending_free[i])
> > -				continue;
> > -
> > -			if (flags & MMAP)
> > -				munmap(pending_free[i], bo_size);
> > -			else
> > -				free(pending_free[i]);
> > -		}
> > -		free(pending_free);
> > -	}
> > -	if (data) {
> > -		if (flags & MMAP)
> > -			munmap(data, bo_size);
> > -		else if (!alloc)
> > -			free(data);
> > -	}
> > -	if (free_vm)
> > -		xe_vm_destroy(fd, vm);
> > -}
> > -
> > -struct thread_data {
> > -	pthread_t thread;
> > -	pthread_mutex_t *mutex;
> > -	pthread_cond_t *cond;
> > -	pthread_barrier_t *barrier;
> > -	int fd;
> > -	struct drm_xe_engine_class_instance *eci;
> > -	int n_exec_queues;
> > -	int n_execs;
> > -	size_t bo_size;
> > -	size_t stride;
> > -	uint32_t vm;
> > -	unsigned int flags;
> > -	void *alloc;
> > -	bool *go;
> > -};
> > -
> > -static void *thread(void *data)
> > -{
> > -	struct thread_data *t = data;
> > -
> > -	pthread_mutex_lock(t->mutex);
> > -	while (!*t->go)
> > -		pthread_cond_wait(t->cond, t->mutex);
> > -	pthread_mutex_unlock(t->mutex);
> > -
> > -	test_exec(t->fd, t->eci, t->n_exec_queues, t->n_execs,
> > -		  t->bo_size, t->stride, t->vm, t->alloc, t->barrier,
> > -		  t->flags);
> > -
> > -	return NULL;
> > -}
> > -
> > -static void
> > -threads(int fd, int n_exec_queues, int n_execs, size_t bo_size,
> > -	size_t stride, unsigned int flags, bool shared_vm)
> > -{
> > -	struct drm_xe_engine_class_instance *hwe;
> > -	struct thread_data *threads_data;
> > -	int n_engines = 0, i = 0;
> > -	pthread_mutex_t mutex;
> > -	pthread_cond_t cond;
> > -	pthread_barrier_t barrier;
> > -	uint32_t vm = 0;
> > -	bool go = false;
> > -	void *alloc = NULL;
> > -
> > -	if ((FILE_BACKED | FORK_READ) & flags)
> > -		return;
> > -
> > -	xe_for_each_engine(fd, hwe)
> > -		++n_engines;
> > -
> > -	if (shared_vm) {
> > -		vm = xe_vm_create(fd, DRM_XE_VM_CREATE_FLAG_LR_MODE |
> > -				  DRM_XE_VM_CREATE_FLAG_FAULT_MODE, 0);
> > -		bind_system_allocator(NULL, 0);
> > -	}
> > -
> > -	if (flags & SHARED_ALLOC) {
> > -		uint64_t alloc_size;
> > -
> > -		igt_assert(stride);
> > -
> > -		alloc_size = sizeof(struct test_exec_data) * stride *
> > -			n_execs * n_engines;
> > -		alloc_size = xe_bb_size(fd, alloc_size);
> > -		alloc = aligned_alloc(SZ_2M, alloc_size);
> > -		igt_assert(alloc);
> > -
> > -		memset(alloc, 0, alloc_size);
> > -		flags &= ~SHARED_ALLOC;
> > -	}
> > -
> > -	threads_data = calloc(n_engines, sizeof(*threads_data));
> > -	igt_assert(threads_data);
> > -
> > -	pthread_mutex_init(&mutex, 0);
> > -	pthread_cond_init(&cond, 0);
> > -	pthread_barrier_init(&barrier, 0, n_engines);
> > -
> > -	xe_for_each_engine(fd, hwe) {
> > -		threads_data[i].mutex = &mutex;
> > -		threads_data[i].cond = &cond;
> > -		threads_data[i].barrier = (flags & SYNC_EXEC) ? &barrier : NULL;
> > -		threads_data[i].fd = fd;
> > -		threads_data[i].eci = hwe;
> > -		threads_data[i].n_exec_queues = n_exec_queues;
> > -		threads_data[i].n_execs = n_execs;
> > -		threads_data[i].bo_size = bo_size;
> > -		threads_data[i].stride = stride;
> > -		threads_data[i].vm = vm;
> > -		threads_data[i].flags = flags;
> > -		threads_data[i].alloc = alloc ? alloc + i *
> > -			sizeof(struct test_exec_data) : NULL;
> > -		threads_data[i].go = &go;
> > -		pthread_create(&threads_data[i].thread, 0, thread,
> > -			       &threads_data[i]);
> > -		++i;
> > -	}
> > -
> > -	pthread_mutex_lock(&mutex);
> > -	go = true;
> > -	pthread_cond_broadcast(&cond);
> > -	pthread_mutex_unlock(&mutex);
> > -
> > -	for (i = 0; i < n_engines; ++i)
> > -		pthread_join(threads_data[i].thread, NULL);
> > -
> > -	if (shared_vm) {
> > -		int ret;
> > -
> > -		if (flags & MMAP) {
> > -			int tries = 300;
> > -
> > -			while (tries && (ret = unbind_system_allocator()) == -EBUSY) {
> > -				sleep(.01);
> > -				--tries;
> > -			}
> > -			igt_assert_eq(ret, 0);
> > -		}
> > -		xe_vm_destroy(fd, vm);
> > -		if (alloc)
> > -			free(alloc);
> > -	}
> > -	free(threads_data);
> > -}
> > -
> > -static void process(struct drm_xe_engine_class_instance *hwe, int n_exec_queues,
> > -		    int n_execs, size_t bo_size, size_t stride,
> > -		    unsigned int flags)
> > -{
> > -	struct process_data *pdata;
> > -	int map_fd;
> > -	int fd;
> > -
> > -	map_fd = open(sync_file, O_RDWR, 0x666);
> > -	pdata = mmap(NULL, sizeof(*pdata), PROT_READ |
> > -		     PROT_WRITE, MAP_SHARED, map_fd, 0);
> > -	wait_pdata(pdata);
> > -
> > -	fd = drm_open_driver(DRIVER_XE);
> > -	test_exec(fd, hwe, n_exec_queues, n_execs,
> > -		  bo_size, stride, 0, NULL, NULL, flags);
> > -	drm_close_driver(fd);
> > -
> > -	close(map_fd);
> > -	munmap(pdata, sizeof(*pdata));
> > -}
> > -
> > -static void
> > -processes(int fd, int n_exec_queues, int n_execs, size_t bo_size,
> > -	  size_t stride, unsigned int flags)
> > -{
> > -	struct drm_xe_engine_class_instance *hwe;
> > -	struct process_data *pdata;
> > -	int map_fd;
> > -
> > -	if (flags & FORK_READ)
> > -		return;
> > -
> > -	map_fd = open(sync_file, O_RDWR | O_CREAT, 0x666);
> > -	posix_fallocate(map_fd, 0, sizeof(*pdata));
> > -	pdata = mmap(NULL, sizeof(*pdata), PROT_READ |
> > -		     PROT_WRITE, MAP_SHARED, map_fd, 0);
> > -
> > -	init_pdata(pdata, 0);
> > -
> > -	xe_for_each_engine(fd, hwe) {
> > -		igt_fork(child, 1)
> > -			process(hwe, n_exec_queues, n_execs, bo_size,
> > -				stride, flags);
> > -	}
> > -
> > -	signal_pdata(pdata);
> > -	igt_waitchildren();
> > -
> > -	close(map_fd);
> > -	munmap(pdata, sizeof(*pdata));
> > -}
> > -
> > -struct section {
> > -	const char *name;
> > -	unsigned int flags;
> > -};
> > -
> > -igt_main
> > -{
> > -	struct drm_xe_engine_class_instance *hwe;
> > -	const struct section sections[] = {
> > -		{ "malloc", 0 },
> > -		{ "malloc-multi-fault", MULTI_FAULT },
> > -		{ "malloc-fork-read", FORK_READ },
> > -		{ "malloc-fork-read-after", FORK_READ | FORK_READ_AFTER },
> > -		{ "malloc-mlock", LOCK },
> > -		{ "malloc-race", RACE },
> > -		{ "malloc-busy", BUSY },
> > -		{ "malloc-bo-unmap", BO_UNMAP },
> > -		{ "mmap", MMAP },
> > -		{ "mmap-remap", MMAP | MREMAP },
> > -		{ "mmap-remap-dontunmap", MMAP | MREMAP | DONTUNMAP },
> > -		{ "mmap-remap-ro", MMAP | MREMAP | READ_ONLY_REMAP },
> > -		{ "mmap-remap-ro-dontunmap", MMAP | MREMAP | DONTUNMAP |
> > -			READ_ONLY_REMAP },
> > -		{ "mmap-remap-eocheck", MMAP | MREMAP | EVERY_OTHER_CHECK },
> > -		{ "mmap-remap-dontunmap-eocheck", MMAP | MREMAP | DONTUNMAP |
> > -			EVERY_OTHER_CHECK },
> > -		{ "mmap-remap-ro-eocheck", MMAP | MREMAP | READ_ONLY_REMAP |
> > -			EVERY_OTHER_CHECK },
> > -		{ "mmap-remap-ro-dontunmap-eocheck", MMAP | MREMAP | DONTUNMAP |
> > -			READ_ONLY_REMAP | EVERY_OTHER_CHECK },
> > -		{ "mmap-huge", MMAP | HUGE_PAGE },
> > -		{ "mmap-shared", MMAP | LOCK | MMAP_SHARED },
> > -		{ "mmap-shared-remap", MMAP | LOCK | MMAP_SHARED | MREMAP },
> > -		{ "mmap-shared-remap-dontunmap", MMAP | LOCK | MMAP_SHARED |
> > -			MREMAP | DONTUNMAP },
> > -		{ "mmap-shared-remap-eocheck", MMAP | LOCK | MMAP_SHARED |
> > -			MREMAP | EVERY_OTHER_CHECK },
> > -		{ "mmap-shared-remap-dontunmap-eocheck", MMAP | LOCK |
> > -			MMAP_SHARED | MREMAP | DONTUNMAP | EVERY_OTHER_CHECK },
> > -		{ "mmap-mlock", MMAP | LOCK },
> > -		{ "mmap-file", MMAP | FILE_BACKED },
> > -		{ "mmap-file-mlock", MMAP | LOCK | FILE_BACKED },
> > -		{ "mmap-race", MMAP | RACE },
> > -		{ "free", NEW | FREE },
> > -		{ "free-race", NEW | FREE | RACE },
> > -		{ "new", NEW },
> > -		{ "new-race", NEW | RACE },
> > -		{ "new-bo-map", NEW | BO_MAP },
> > -		{ "new-busy", NEW | BUSY },
> > -		{ "mmap-free", MMAP | NEW | FREE },
> > -		{ "mmap-free-huge", MMAP | NEW | FREE | HUGE_PAGE },
> > -		{ "mmap-free-race", MMAP | NEW | FREE | RACE },
> > -		{ "mmap-new", MMAP | NEW },
> > -		{ "mmap-new-huge", MMAP | NEW | HUGE_PAGE },
> > -		{ "mmap-new-race", MMAP | NEW | RACE },
> > -		{ "malloc-nomemset", SKIP_MEMSET },
> > -		{ "malloc-mlock-nomemset", SKIP_MEMSET | LOCK },
> > -		{ "malloc-race-nomemset", SKIP_MEMSET | RACE },
> > -		{ "malloc-busy-nomemset", SKIP_MEMSET | BUSY },
> > -		{ "malloc-bo-unmap-nomemset", SKIP_MEMSET | BO_UNMAP },
> > -		{ "mmap-nomemset", SKIP_MEMSET | MMAP },
> > -		{ "mmap-huge-nomemset", SKIP_MEMSET | MMAP | HUGE_PAGE },
> > -		{ "mmap-shared-nomemset", SKIP_MEMSET | MMAP | MMAP_SHARED },
> > -		{ "mmap-mlock-nomemset", SKIP_MEMSET | MMAP | LOCK },
> > -		{ "mmap-file-nomemset", SKIP_MEMSET | MMAP | FILE_BACKED },
> > -		{ "mmap-file-mlock-nomemset", SKIP_MEMSET | MMAP | LOCK | FILE_BACKED },
> > -		{ "mmap-race-nomemset", SKIP_MEMSET | MMAP | RACE },
> > -		{ "free-nomemset", SKIP_MEMSET | NEW | FREE },
> > -		{ "free-race-nomemset", SKIP_MEMSET | NEW | FREE | RACE },
> > -		{ "new-nomemset", SKIP_MEMSET | NEW },
> > -		{ "new-race-nomemset", SKIP_MEMSET | NEW | RACE },
> > -		{ "new-bo-map-nomemset", SKIP_MEMSET | NEW | BO_MAP },
> > -		{ "new-busy-nomemset", SKIP_MEMSET | NEW | BUSY },
> > -		{ "mmap-free-nomemset", SKIP_MEMSET | MMAP | NEW | FREE },
> > -		{ "mmap-free-huge-nomemset", SKIP_MEMSET | MMAP | NEW | FREE | HUGE_PAGE },
> > -		{ "mmap-free-race-nomemset", SKIP_MEMSET | MMAP | NEW | FREE | RACE },
> > -		{ "mmap-new-nomemset", SKIP_MEMSET | MMAP | NEW },
> > -		{ "mmap-new-huge-nomemset", SKIP_MEMSET | MMAP | NEW | HUGE_PAGE },
> > -		{ "mmap-new-race-nomemset", SKIP_MEMSET | MMAP | NEW | RACE },
> > -		{ NULL },
> > -	};
> > -	const struct section psections[] = {
> > -		{ "munmap-cpu-fault", CPU_FAULT },
> > -		{ "munmap-no-cpu-fault", 0 },
> > -		{ "remap-cpu-fault", CPU_FAULT | REMAP },
> > -		{ "remap-no-cpu-fault", REMAP },
> > -		{ "middle-munmap-cpu-fault", MIDDLE | CPU_FAULT },
> > -		{ "middle-munmap-no-cpu-fault", MIDDLE },
> > -		{ "middle-remap-cpu-fault", MIDDLE | CPU_FAULT | REMAP },
> > -		{ "middle-remap-no-cpu-fault", MIDDLE | REMAP },
> > -		{ NULL },
> > -	};
> > -	const struct section esections[] = {
> > -		{ "malloc", 0 },
> > -		{ "malloc-mix-bo", MIX_BO_ALLOC },
> > -		{ NULL },
> > -	};
> > -	int fd;
> > -
> > -	igt_fixture {
> > -		struct xe_device *xe;
> > -
> > -		fd = drm_open_driver(DRIVER_XE);
> > -		igt_require(!xe_supports_faults(fd));
> > -
> > -		xe = xe_device_get(fd);
> > -		va_bits = xe->va_bits;
> > -		open_sync_file();
> > -	}
> > -
> > -	for (const struct section *s = sections; s->name; s++) {
> > -		igt_subtest_f("once-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				test_exec(fd, hwe, 1, 1, 0, 0, 0, NULL,
> > -					  NULL, s->flags);
> > -
> > -		igt_subtest_f("once-large-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				test_exec(fd, hwe, 1, 1, SZ_2M, 0, 0, NULL,
> > -					  NULL, s->flags);
> > -
> > -		igt_subtest_f("twice-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				test_exec(fd, hwe, 1, 2, 0, 0, 0, NULL,
> > -					  NULL, s->flags);
> > -
> > -		igt_subtest_f("twice-large-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				test_exec(fd, hwe, 1, 2, SZ_2M, 0, 0, NULL,
> > -					  NULL, s->flags);
> > -
> > -		igt_subtest_f("many-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				test_exec(fd, hwe, 1, 128, 0, 0, 0, NULL,
> > -					  NULL, s->flags);
> > -
> > -		igt_subtest_f("many-stride-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				test_exec(fd, hwe, 1, 128, 0, 256, 0, NULL,
> > -					  NULL, s->flags);
> > -
> > -		igt_subtest_f("many-execqueues-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				test_exec(fd, hwe, 16, 128, 0, 0, 0, NULL,
> > -					  NULL, s->flags);
> > -
> > -		igt_subtest_f("many-large-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				test_exec(fd, hwe, 1, 128, SZ_2M, 0, 0, NULL,
> > -					  NULL, s->flags);
> > -
> > -		igt_subtest_f("many-large-execqueues-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				test_exec(fd, hwe, 16, 128, SZ_2M, 0, 0, NULL,
> > -					  NULL, s->flags);
> > -
> > -		igt_subtest_f("threads-many-%s", s->name)
> > -			threads(fd, 1, 128, 0, 0, s->flags, false);
> > -
> > -		igt_subtest_f("threads-many-stride-%s", s->name)
> > -			threads(fd, 1, 128, 0, 256, s->flags, false);
> > -
> > -		igt_subtest_f("threads-many-execqueues-%s", s->name)
> > -			threads(fd, 16, 128, 0, 0, s->flags, false);
> > -
> > -		igt_subtest_f("threads-many-large-%s", s->name)
> > -			threads(fd, 1, 128, SZ_2M, 0, s->flags, false);
> > -
> > -		igt_subtest_f("threads-many-large-execqueues-%s", s->name)
> > -			threads(fd, 16, 128, SZ_2M, 0, s->flags, false);
> > -
> > -		igt_subtest_f("threads-shared-vm-many-%s", s->name)
> > -			threads(fd, 1, 128, 0, 0, s->flags, true);
> > -
> > -		igt_subtest_f("threads-shared-vm-many-stride-%s", s->name)
> > -			threads(fd, 1, 128, 0, 256, s->flags, true);
> > -
> > -		igt_subtest_f("threads-shared-vm-many-execqueues-%s", s->name)
> > -			threads(fd, 16, 128, 0, 0, s->flags, true);
> > -
> > -		igt_subtest_f("threads-shared-vm-many-large-%s", s->name)
> > -			threads(fd, 1, 128, SZ_2M, 0, s->flags, true);
> > -
> > -		igt_subtest_f("threads-shared-vm-many-large-execqueues-%s", s->name)
> > -			threads(fd, 16, 128, SZ_2M, 0, s->flags, true);
> > -
> > -		igt_subtest_f("process-many-%s", s->name)
> > -			processes(fd, 1, 128, 0, 0, s->flags);
> > -
> > -		igt_subtest_f("process-many-stride-%s", s->name)
> > -			processes(fd, 1, 128, 0, 256, s->flags);
> > -
> > -		igt_subtest_f("process-many-execqueues-%s", s->name)
> > -			processes(fd, 16, 128, 0, 0, s->flags);
> > -
> > -		igt_subtest_f("process-many-large-%s", s->name)
> > -			processes(fd, 1, 128, SZ_2M, 0, s->flags);
> > -
> > -		igt_subtest_f("process-many-large-execqueues-%s", s->name)
> > -			processes(fd, 16, 128, SZ_2M, 0, s->flags);
> > -	}
> > -
> > -	igt_subtest("threads-shared-vm-shared-alloc-many-stride-malloc")
> > -		threads(fd, 1, 128, 0, 256, SHARED_ALLOC, true);
> > -
> > -	igt_subtest("threads-shared-vm-shared-alloc-many-stride-malloc-race")
> > -		threads(fd, 1, 128, 0, 256, RACE | SHARED_ALLOC, true);
> > -
> > -	igt_subtest("threads-shared-alloc-many-stride-malloc")
> > -		threads(fd, 1, 128, 0, 256, SHARED_ALLOC, false);
> > -
> > -	igt_subtest("threads-shared-alloc-many-stride-malloc-sync")
> > -		threads(fd, 1, 128, 0, 256, SHARED_ALLOC | SYNC_EXEC, false);
> > -
> > -	igt_subtest("threads-shared-alloc-many-stride-malloc-race")
> > -		threads(fd, 1, 128, 0, 256, RACE | SHARED_ALLOC, false);
> > -
> > -	igt_subtest_f("fault")
> > -		xe_for_each_engine(fd, hwe)
> > -			test_exec(fd, hwe, 4, 1, SZ_2M, 0, 0, NULL, NULL,
> > -				  FAULT);
> > -
> > -	for (const struct section *s = psections; s->name; s++) {
> > -		igt_subtest_f("partial-%s", s->name)
> > -			xe_for_each_engine(fd, hwe)
> > -				partial(fd, hwe, s->flags);
> > -	}
> > -
> > -	igt_subtest_f("unaligned-alloc")
> > -		xe_for_each_engine(fd, hwe) {
> > -			many_allocs(fd, hwe, (SZ_1M + SZ_512K) * 8,
> > -				    SZ_1M + SZ_512K, SZ_4K, NULL, 0);
> > -			break;
> > -		}
> > -
> > -	igt_subtest_f("fault-benchmark")
> > -		xe_for_each_engine(fd, hwe)
> > -			many_allocs(fd, hwe, SZ_64M, SZ_64M, SZ_4K, NULL,
> > -				    BENCHMARK);
> > -
> > -	igt_subtest_f("fault-threads-benchmark")
> > -		xe_for_each_engine(fd, hwe)
> > -			many_allocs(fd, hwe, SZ_64M, SZ_64M, SZ_4K, NULL,
> > -				    BENCHMARK | CPU_FAULT_THREADS);
> > -
> > -	igt_subtest_f("fault-threads-same-page-benchmark")
> > -		xe_for_each_engine(fd, hwe)
> > -			many_allocs(fd, hwe, SZ_64M, SZ_64M, SZ_4K, NULL,
> > -				    BENCHMARK | CPU_FAULT_THREADS |
> > -				    CPU_FAULT_SAME_PAGE);
> > -
> > -	igt_subtest_f("fault-process-benchmark")
> > -		xe_for_each_engine(fd, hwe)
> > -			many_allocs(fd, hwe, SZ_64M, SZ_64M, SZ_4K, NULL,
> > -				    BENCHMARK | CPU_FAULT_PROCESS);
> > -
> > -	igt_subtest_f("fault-process-same-page-benchmark")
> > -		xe_for_each_engine(fd, hwe)
> > -			many_allocs(fd, hwe, SZ_64M, SZ_64M, SZ_4K, NULL,
> > -				    BENCHMARK | CPU_FAULT_PROCESS |
> > -				    CPU_FAULT_SAME_PAGE);
> > -
> > -	for (const struct section *s = esections; s->name; s++) {
> > -		igt_subtest_f("evict-%s", s->name)
> > -			xe_for_each_engine(fd, hwe) {
> > -				many_allocs(fd, hwe,
> > -					    xe_visible_vram_size(fd, hwe->gt_id),
> > -					    SZ_8M, SZ_1M, NULL, s->flags);
> > -				break;
> > -			}
> > -	}
> > -
> > -	for (const struct section *s = esections; s->name; s++) {
> > -		igt_subtest_f("processes-evict-%s", s->name)
> > -			processes_evict(fd, SZ_8M, SZ_1M, s->flags);
> > -	}
> > -
> > -	igt_fixture {
> > -		xe_device_put(fd);
> > -		drm_close_driver(fd);
> > -		close_sync_file();
> > -	}
> > -}
> > diff --git a/tests/meson.build b/tests/meson.build
> > index 20ddddb89..6328792e3 100644
> > --- a/tests/meson.build
> > +++ b/tests/meson.build
> > @@ -295,7 +295,6 @@ intel_xe_progs = [
> >  	'xe_exec_reset',
> >  	'xe_exec_sip',
> >  	'xe_exec_store',
> > -	'xe_exec_system_allocator',
> >  	'xe_exec_threads',
> >  	'xe_exercise_blt',
> >  	'xe_fault_injection',
> > -- 
> > 2.49.0
> >