[igt-dev] [PATCH i-g-t v4 4/5] tests/xe_evict_ccs: Add evict ccs test
Zbigniew Kempczyński
zbigniew.kempczynski at intel.com
Tue Oct 24 17:36:17 UTC 2023
Exercise is flat-ccs eviction working fine in the kernel driver
when buffers takes more than available vram. Differentiate with
standalone/parallel execution, same or separate drm fd and buffer
freeing time. Tests are divided to two groups - first which won't
exceed vram memory size (thus don't trigger eviction, but it is
good for the reference logic is properly compress/decompress
buffers) and second which exceeds.
v2:
- Add command line switches to exercise kernel with different
sizes, number of objects and vram overcommitment
- Add -simple test which creates single big object which enforces
eviction (Matt)
v3:
- Address review comments (Matt)
v4:
- Remove unnecessary engine loop (Matt)
Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
Cc: Matthew Auld <matthew.auld at intel.com>
Reviewed-by: Matthew Auld <matthew.auld at intel.com>
---
tests/intel/xe_evict_ccs.c | 514 +++++++++++++++++++++++++++++++++++++
tests/meson.build | 1 +
2 files changed, 515 insertions(+)
create mode 100644 tests/intel/xe_evict_ccs.c
diff --git a/tests/intel/xe_evict_ccs.c b/tests/intel/xe_evict_ccs.c
new file mode 100644
index 0000000000..4f2876ecb2
--- /dev/null
+++ b/tests/intel/xe_evict_ccs.c
@@ -0,0 +1,514 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+/**
+ * TEST: Check flat-ccs eviction
+ * Category: Software building block
+ * Sub-category: Flat-CCS
+ * Functionality: evict
+ * GPU requirements: GPU needs to have dedicated VRAM
+ */
+
+#include "igt.h"
+#include "igt_list.h"
+#include "intel_blt.h"
+#include "intel_mocs.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 <math.h>
+#include <string.h>
+
+#define OVERCOMMIT_VRAM_PERCENT 110
+#define MIN_OBJ_KB 64
+#define MAX_OBJ_KB (256 * 1024)
+#define DUMP_FILENAME "/tmp/object.data"
+#define DUMP_EXPFILENAME "/tmp/object.expected"
+
+static struct param {
+ bool print_bb;
+ bool disable_compression;
+ bool dump_corrupted_surface;
+ int num_objs;
+ int vram_percent;
+ int min_size_kb;
+ int max_size_kb;
+ bool verify;
+} params = {
+ .num_objs = 0,
+ .vram_percent = OVERCOMMIT_VRAM_PERCENT,
+ .min_size_kb = MIN_OBJ_KB,
+ .max_size_kb = MAX_OBJ_KB,
+};
+
+struct object {
+ uint64_t size;
+ uint32_t start_value;
+ struct blt_copy_object *blt_obj;
+ struct igt_list_head link;
+};
+
+#define TEST_PARALLEL (1 << 0)
+#define TEST_INSTANTFREE (1 << 1)
+#define TEST_REOPEN (1 << 2)
+#define TEST_SIMPLE (1 << 3)
+
+#define MAX_NPROC 8
+struct config {
+ uint32_t flags;
+ int nproc;
+ int free_mb, total_mb;
+ int test_mb, mb_per_proc;
+ const struct param *param;
+};
+
+static void copy_obj(struct blt_copy_data *blt,
+ struct blt_copy_object *src_obj,
+ struct blt_copy_object *dst_obj,
+ intel_ctx_t *ctx,
+ uint64_t ahnd)
+{
+ struct blt_block_copy_data_ext ext = {};
+ int fd = blt->fd;
+ uint64_t bb_size = xe_get_default_alignment(fd);
+ uint32_t bb;
+ uint32_t w, h;
+
+ w = src_obj->x2;
+ h = src_obj->y2;
+
+ bb = xe_bo_create_flags(fd, 0, bb_size, visible_vram_memory(fd, 0));
+
+ blt->color_depth = CD_32bit;
+ blt->print_bb = params.print_bb;
+ blt_set_copy_object(&blt->src, src_obj);
+ blt_set_copy_object(&blt->dst, dst_obj);
+ blt_set_object_ext(&ext.src, 0, w, h, SURFACE_TYPE_2D);
+ blt_set_object_ext(&ext.dst, 0, w, h, SURFACE_TYPE_2D);
+ blt_set_batch(&blt->bb, bb, bb_size, vram_if_possible(fd, 0));
+ blt_block_copy(fd, ctx, NULL, ahnd, blt, &ext);
+ intel_ctx_xe_sync(ctx, true);
+
+ gem_close(fd, bb);
+ put_offset(ahnd, bb);
+ put_offset(ahnd, blt->src.handle);
+ put_offset(ahnd, blt->dst.handle);
+ intel_allocator_bind(ahnd, 0, 0);
+}
+
+static uint32_t rand_and_update(uint32_t *left, uint32_t min, uint32_t max)
+{
+ int left_bit, min_bit, max_bit, rand_id, rand_kb;
+
+ left_bit = igt_fls(*left) - 1;
+ min_bit = igt_fls(min) - 1;
+ max_bit = max_t(int, min_t(int, igt_fls(max) - 1, left_bit), igt_fls(max));
+ rand_id = rand() % (max_bit - min_bit);
+ rand_kb = 1 << (rand_id + min_bit);
+
+ if (*left >= rand_kb)
+ *left -= rand_kb;
+ else
+ *left = 0;
+
+ return rand_kb;
+}
+
+static struct object *create_obj(struct blt_copy_data *blt,
+ intel_ctx_t *ctx, uint64_t ahnd,
+ uint64_t size, int start_value,
+ bool disable_compression)
+{
+ int fd = blt->fd;
+ struct object *obj;
+ uint32_t w, h;
+ uint8_t uc_mocs = intel_get_uc_mocs_index(fd);
+ int i;
+ struct blt_copy_object *src;
+
+ obj = calloc(1, sizeof(*obj));
+ igt_assert(obj);
+ obj->size = size;
+ obj->start_value = start_value;
+
+ w = max_t(int, 1024, roundup_power_of_two(sqrt(size/4)));
+ h = size / w / 4; /* /4 - 32bpp */
+
+ igt_debug("[%8d] Obj size: %ldKiB (%ldMiB) <w: %d, h: %d>\n",
+ getpid(), size / SZ_1K, size / SZ_1M, w, h);
+
+ src = blt_create_object(blt,
+ system_memory(fd),
+ w, h, 32, uc_mocs,
+ T_LINEAR, COMPRESSION_DISABLED,
+ COMPRESSION_TYPE_3D, true);
+
+ obj->blt_obj = blt_create_object(blt, vram_memory(fd, 0),
+ w, h, 32, uc_mocs,
+ T_LINEAR,
+ disable_compression ? COMPRESSION_DISABLED :
+ COMPRESSION_ENABLED,
+ COMPRESSION_TYPE_3D, true);
+
+ for (i = 0; i < size / sizeof(uint32_t); i++)
+ src->ptr[i] = start_value++;
+
+ copy_obj(blt, src, obj->blt_obj, ctx, ahnd);
+
+ blt_destroy_object_and_alloc_free(fd, ahnd, src);
+ intel_allocator_bind(ahnd, 0, 0);
+
+ return obj;
+}
+
+static void dump_obj(const struct blt_copy_object *obj, int start_value)
+{
+ FILE *out;
+
+ if (!params.dump_corrupted_surface)
+ return;
+
+ out = fopen(DUMP_FILENAME, "wb");
+ fwrite(obj->ptr, obj->size, 1, out);
+ fclose(out);
+
+ out = fopen(DUMP_EXPFILENAME, "wb");
+ for (int i = 0; i < obj->size / 4; i++) {
+ int v = start_value + i;
+
+ fwrite(&v, sizeof(int), 1, out);
+ }
+ fclose(out);
+}
+
+static void check_obj(const char *check_mode,
+ const struct blt_copy_object *obj, uint64_t size,
+ int start_value, int num_obj)
+{
+ int i, idx;
+
+ if (obj->ptr[0] != start_value ||
+ (obj->ptr[size/4 - 1] != start_value + size/4 - 1)) {
+ igt_info("[%s] Failed object w: %d, h: %d, size: %ldKiB (%ldMiB)\n",
+ check_mode, obj->x2, obj->y2, obj->size / SZ_1K, obj->size / SZ_1M);
+ dump_obj(obj, start_value);
+ }
+
+ igt_assert_eq(obj->ptr[0], start_value);
+ igt_assert_eq(obj->ptr[size/4 - 1], start_value + size/4 - 1);
+
+ /* Couple of checks of random indices */
+ for (i = 0; i < 128; i++) {
+ idx = rand() % (size/4);
+
+ if (obj->ptr[idx] != start_value + idx) {
+ igt_info("[%s] Failed object w: %d, h: %d, size: %ldKiB (%ldMiB)\n",
+ check_mode, obj->x2, obj->y2,
+ obj->size / SZ_1K, obj->size / SZ_1M);
+ dump_obj(obj, start_value);
+ }
+
+ igt_assert_f(obj->ptr[idx] == start_value + idx,
+ "[%s] Object number %d doesn't contain valid data",
+ check_mode, num_obj);
+ }
+}
+
+static void evict_single(int fd, int child, const struct config *config)
+{
+ struct blt_copy_data blt = {};
+ struct blt_copy_object *orig_obj;
+ uint32_t kb_left = config->mb_per_proc * SZ_1K;
+ uint32_t min_alloc_kb = config->param->min_size_kb;
+ uint32_t max_alloc_kb = config->param->max_size_kb;
+ uint32_t vm = xe_vm_create(fd, DRM_XE_VM_CREATE_ASYNC_DEFAULT, 0);
+ uint64_t ahnd = intel_allocator_open(fd, vm, INTEL_ALLOCATOR_RELOC);
+ uint8_t uc_mocs = intel_get_uc_mocs_index(fd);
+ struct object *obj, *tmp;
+ struct igt_list_head list;
+ struct drm_xe_engine_class_instance inst = {
+ .engine_class = DRM_XE_ENGINE_CLASS_COPY,
+ };
+ intel_ctx_t *ctx;
+ uint32_t exec_queue, big_obj;
+ int num_obj = 0;
+
+ srandom(time(NULL) + getpid());
+ IGT_INIT_LIST_HEAD(&list);
+ igt_debug("[%2d] child : to allocate: %uMiB\n", child, kb_left/SZ_1K);
+
+ blt_copy_init(fd, &blt);
+
+ exec_queue = xe_exec_queue_create(fd, vm, &inst, 0);
+ ctx = intel_ctx_xe(fd, vm, exec_queue, 0, 0, 0);
+
+ while (kb_left) {
+ struct blt_copy_object *verify_obj;
+ uint64_t obj_size = rand_and_update(&kb_left, min_alloc_kb, max_alloc_kb) * SZ_1K;
+ int start_value = rand();
+
+ if (config->flags & TEST_SIMPLE)
+ obj_size = max_alloc_kb * SZ_1K;
+
+ obj = create_obj(&blt, ctx, ahnd, obj_size, start_value,
+ config->param->disable_compression);
+ igt_list_add(&obj->link, &list);
+
+ if (config->param->verify) {
+ verify_obj = blt_create_object(&blt, system_memory(fd),
+ obj->blt_obj->x2,
+ obj->blt_obj->y2,
+ 32, uc_mocs,
+ T_LINEAR, COMPRESSION_DISABLED,
+ 0, true);
+ copy_obj(&blt, obj->blt_obj, verify_obj, ctx, ahnd);
+ check_obj("Verify", verify_obj, obj->blt_obj->size,
+ obj->start_value, num_obj++);
+ blt_destroy_object_and_alloc_free(fd, ahnd, verify_obj);
+ intel_allocator_bind(ahnd, 0, 0);
+ }
+
+ if (config->flags & TEST_SIMPLE) {
+ big_obj = xe_bo_create_flags(fd, vm, kb_left * SZ_1K,
+ vram_memory(fd, 0));
+ break;
+ }
+
+ if (config->param->num_objs && ++num_obj == config->param->num_objs)
+ break;
+ }
+
+ if (config->param->verify)
+ igt_info("[%8d] Verify ok\n", getpid());
+
+ num_obj = 0;
+ igt_list_for_each_entry_safe(obj, tmp, &list, link) {
+ orig_obj = blt_create_object(&blt, system_memory(fd),
+ obj->blt_obj->x2,
+ obj->blt_obj->y2,
+ 32, uc_mocs,
+ T_LINEAR, COMPRESSION_DISABLED,
+ 0, true);
+ copy_obj(&blt, obj->blt_obj, orig_obj, ctx, ahnd);
+ check_obj("Check", orig_obj, obj->blt_obj->size, obj->start_value, num_obj++);
+ blt_destroy_object_and_alloc_free(fd, ahnd, orig_obj);
+
+ if (config->flags & TEST_INSTANTFREE) {
+ igt_list_del(&obj->link);
+ blt_destroy_object_and_alloc_free(fd, ahnd, obj->blt_obj);
+ free(obj);
+ }
+ intel_allocator_bind(ahnd, 0, 0);
+ }
+
+ if (!(config->flags & TEST_INSTANTFREE))
+ igt_list_for_each_entry_safe(obj, tmp, &list, link) {
+ igt_list_del(&obj->link);
+ blt_destroy_object_and_alloc_free(fd, ahnd, obj->blt_obj);
+ free(obj);
+ }
+
+ if (config->flags & TEST_SIMPLE)
+ gem_close(fd, big_obj);
+}
+
+static void set_config(int fd, uint32_t flags, const struct param *param,
+ struct config *config)
+{
+ int nproc = 1;
+
+ config->param = param;
+ config->flags = flags;
+ config->free_mb = xe_visible_vram_size(fd, 0) / SZ_1M;
+ config->total_mb = xe_vram_available(fd, 0) / SZ_1M;
+ config->test_mb = min_t(int, config->free_mb * config->param->vram_percent / 100,
+ config->total_mb * config->param->vram_percent / 100);
+
+ igt_debug("VRAM memory size: %dMB/%dMB (use %dMB), overcommit perc: %d\n",
+ config->free_mb, config->total_mb,
+ config->test_mb, config->param->vram_percent);
+
+ if (flags & TEST_PARALLEL)
+ nproc = min_t(int, sysconf(_SC_NPROCESSORS_ONLN), MAX_NPROC);
+ config->nproc = nproc;
+ config->mb_per_proc = config->test_mb / nproc;
+
+ igt_debug("nproc: %d, mem per proc: %dMB\n", nproc, config->mb_per_proc);
+}
+
+static void evict_ccs(int fd, uint32_t flags, const struct param *param)
+{
+ struct config config;
+ char numstr[32];
+
+ igt_info("Test mode <parallel: %d, instant free: %d, reopen: %d, simple: %d>\n",
+ !!(flags & TEST_PARALLEL),
+ !!(flags & TEST_INSTANTFREE),
+ !!(flags & TEST_REOPEN),
+ !!(flags & TEST_SIMPLE));
+ if (param->num_objs)
+ snprintf(numstr, sizeof(numstr), "%d", param->num_objs);
+ else
+ strncpy(numstr, "limited to vram", sizeof(numstr));
+ igt_info("Params: compression: %s, num objects: %s, vram percent: %d, kb <min: %d, max: %d>\n",
+ param->disable_compression ? "disabled" : "enabled",
+ numstr, param->vram_percent,
+ param->min_size_kb, param->max_size_kb);
+
+ set_config(fd, flags, param, &config);
+
+ if (flags & TEST_PARALLEL) {
+ igt_fork(n, config.nproc) {
+ if (flags & TEST_REOPEN) {
+ fd = drm_reopen_driver(fd);
+ intel_allocator_init();
+ }
+ evict_single(fd, n, &config);
+ }
+ igt_waitchildren();
+ } else {
+ if (flags & TEST_REOPEN)
+ fd = drm_reopen_driver(fd);
+ evict_single(fd, 0, &config);
+ }
+}
+
+/**
+ *
+ * SUBTEST: evict-ccs-overcommit-simple
+ * Description: FlatCCS eviction test.
+ * Feature: flatccs
+ * Test category: stress test
+ */
+/**
+ *
+ * SUBTEST: evict-ccs-overcommit-%s-%s-%s
+ * Description: FlatCCS eviction test.
+ * Feature: flatccs
+ * Test category: stress test
+ *
+ * arg[1]:
+ *
+ * @standalone: single process
+ * @parallel: multiple processes
+ *
+ * arg[2]:
+ *
+ * @nofree: keep objects till the end of the test
+ * @instantfree: free object after it was verified and it won't
+ * be used anymore
+ *
+ * arg[3]:
+ *
+ * @samefd: operate on same opened drm fd
+ * @reopen: use separately opened drm fds
+ *
+ */
+static int opt_handler(int opt, int opt_index, void *data)
+{
+ switch (opt) {
+ case 'b':
+ params.print_bb = true;
+ igt_debug("Print bb: %d\n", params.print_bb);
+ break;
+ case 'd':
+ params.disable_compression = true;
+ igt_debug("Print bb: %d\n", params.disable_compression);
+ break;
+ case 'D':
+ params.dump_corrupted_surface = true;
+ igt_debug("Print bb: %d\n", params.dump_corrupted_surface);
+ break;
+ case 'n':
+ params.num_objs = atoi(optarg);
+ igt_debug("Number objects: %d\n", params.num_objs);
+ break;
+ case 'p':
+ params.vram_percent = atoi(optarg);
+ igt_debug("Percent vram: %d\n", params.vram_percent);
+ break;
+ case 's':
+ params.min_size_kb = atoi(optarg);
+ igt_debug("Min size kb: %d\n", params.min_size_kb);
+ break;
+ case 'S':
+ params.max_size_kb = atoi(optarg);
+ igt_debug("Max size kb: %d\n", params.max_size_kb);
+ break;
+ case 'V':
+ params.verify = true;
+ igt_debug("Verify: %d\n", params.verify);
+ break;
+ default:
+ return IGT_OPT_HANDLER_ERROR;
+ }
+
+ return IGT_OPT_HANDLER_SUCCESS;
+}
+
+const char *help_str =
+ " -b\tPrint bb\n"
+ " -d\tDisable compression (don't use flatccs area)\n"
+ " -D\tDump surface which doesn't match\n"
+ " -e\tAdd temporary object which enforce eviction\n"
+ " -n\tNumber of objects to create (0 - 31)\n"
+ " -p\tPercent of VRAM to alloc\n"
+ " -s\tMinimum size of object in kb\n"
+ " -S\tMaximum size of object in kb\n"
+ " -V\tVerify object after compressing\n"
+ ;
+
+igt_main_args("bdDn:p:s:S:V", NULL, help_str, opt_handler, NULL)
+{
+ const struct ccs {
+ const char *name;
+ uint32_t flags;
+ } ccs[] = {
+ { "simple",
+ TEST_SIMPLE },
+ { "standalone-nofree-samefd",
+ 0 },
+ { "standalone-nofree-reopen",
+ TEST_REOPEN },
+ { "standalone-instantfree-samefd",
+ TEST_INSTANTFREE },
+ { "standalone-instantfree-reopen",
+ TEST_INSTANTFREE | TEST_REOPEN },
+ { "parallel-nofree-samefd",
+ TEST_PARALLEL },
+ { "parallel-nofree-reopen",
+ TEST_PARALLEL | TEST_REOPEN },
+ { "parallel-instantfree-samefd",
+ TEST_PARALLEL | TEST_INSTANTFREE },
+ { "parallel-instantfree-reopen",
+ TEST_PARALLEL | TEST_INSTANTFREE | TEST_REOPEN },
+ { },
+ };
+ uint64_t vram_size;
+ int fd;
+
+ igt_fixture {
+ fd = drm_open_driver(DRIVER_XE);
+ igt_require(xe_has_vram(fd));
+ vram_size = xe_visible_vram_size(fd, 0);
+ igt_assert(vram_size);
+ }
+
+ igt_fixture
+ intel_allocator_multiprocess_start();
+
+ for (const struct ccs *s = ccs; s->name; s++) {
+ igt_subtest_f("evict-ccs-overcommit-%s", s->name)
+ evict_ccs(fd, s->flags, ¶ms);
+ }
+
+ igt_fixture {
+ intel_allocator_multiprocess_stop();
+ drm_close_driver(fd);
+ }
+}
diff --git a/tests/meson.build b/tests/meson.build
index 5afcd8cbba..8c3e2301c9 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -280,6 +280,7 @@ intel_xe_progs = [
'xe_debugfs',
'xe_drm_fdinfo',
'xe_evict',
+ 'xe_evict_ccs',
'xe_exec_balancer',
'xe_exec_basic',
'xe_exec_compute_mode',
--
2.34.1
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