igt/gem_exec_schedule: Emit wide batches of requests
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/tests/gem_exec_schedule.c b/tests/gem_exec_schedule.c
index 46328f0..06f3186 100644
--- a/tests/gem_exec_schedule.c
+++ b/tests/gem_exec_schedule.c
@@ -434,6 +434,70 @@
munmap(ptr, 4096);
free(ctx);
+#undef XS
+}
+
+static void wide(int fd, unsigned ring)
+{
+#define XS 128
+#define NCTX 4096
+ const uint32_t bbe = MI_BATCH_BUFFER_END;
+ struct drm_i915_gem_exec_object2 obj;
+ struct drm_i915_gem_execbuffer2 execbuf;
+
+ struct cork cork;
+ uint32_t result;
+ uint32_t *busy;
+ uint32_t *ptr;
+ uint32_t *ctx;
+
+ ctx = malloc(sizeof(*ctx)*NCTX);
+ for (int n = 0; n < NCTX; n++)
+ ctx[n] = gem_context_create(fd);
+
+ memset(&obj, 0, sizeof(obj));
+ obj.handle = gem_create(fd, 4096);
+ gem_write(fd, obj.handle, 0, &bbe, sizeof(bbe));
+
+ memset(&execbuf, 0, sizeof(execbuf));
+ execbuf.buffers_ptr = to_user_pointer(&obj);
+ execbuf.buffer_count = 1;
+
+ result = gem_create(fd, 4*NCTX);
+
+ busy = make_busy(fd, result, ring);
+ plug(fd, &cork);
+
+ /* Lots of in-order requests, plugged and submitted simultaneously */
+ for (int n = 0; n < NCTX; n++) {
+ store_dword(fd, ctx[n], ring, result, 4*n, ctx[n], cork.handle, I915_GEM_DOMAIN_INSTRUCTION);
+
+ execbuf.rsvd1 = ctx[n];
+ execbuf.flags = ring;
+ for (int m = 0; m < XS; m++)
+ gem_execbuf(fd, &execbuf);
+ }
+
+ igt_assert(gem_bo_busy(fd, result));
+ unplug(&cork); /* only now submit our batches */
+ igt_debugfs_dump(fd, "i915_engine_info");
+ finish_busy(busy);
+
+ for (int n = 0; n < NCTX; n++)
+ gem_context_destroy(fd, ctx[n]);
+
+ ptr = gem_mmap__gtt(fd, result, 4*NCTX, PROT_READ);
+ gem_set_domain(fd, result, /* no write hazard lies! */
+ I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
+ for (int n = 0; n < NCTX; n++)
+ igt_assert_eq_u32(ptr[n], ctx[n]);
+ munmap(ptr, 4096);
+
+ gem_close(fd, obj.handle);
+ gem_close(fd, result);
+ free(ctx);
+#undef CTX
+#undef XS
}
static bool has_scheduler(int fd)
@@ -508,6 +572,9 @@
igt_subtest_f("deep-%s", e->name)
deep(fd, e->exec_id | e->flags);
+
+ igt_subtest_f("wide-%s", e->name)
+ wide(fd, e->exec_id | e->flags);
}
}
}