test: Add legacy cursor stress test

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 109 insertions, 0 deletions

diff --git a/tests/kms_cursor_legacy.c b/tests/kms_cursor_legacy.c
new file mode 100644
index 00000000..75827908
--- /dev/null
+++ b/tests/kms_cursor_legacy.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright © 2013 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include "igt.h"
+
+IGT_TEST_DESCRIPTION("Stress legacy cursor ioctl");
+
+struct data {
+	int fd;
+};
+
+static uint32_t state = 0x12345678;
+
+static uint32_t
+hars_petruska_f54_1_random (void)
+{
+#define rol(x,k) ((x << k) | (x >> (32-k)))
+    return state = (state ^ rol (state, 5) ^ rol (state, 24)) + 0x37798849;
+#undef rol
+}
+
+static void stress(struct data *data, unsigned mode, int timeout)
+{
+	drmModeRes *r;
+	struct drm_mode_cursor arg;
+	int n;
+
+	r = drmModeGetResources(data->fd);
+	igt_assert(r);
+
+	memset(&arg, 0, sizeof(arg));
+	arg.flags = DRM_MODE_CURSOR_BO;
+	arg.crtc_id = 0;
+	arg.width = 64;
+	arg.height = 64;
+	arg.handle = gem_create(data->fd, 4*64*64);
+
+	for (n = 0; n < r->count_crtcs; n++)
+		drmIoctl(data->fd, DRM_IOCTL_MODE_CURSOR, &arg);
+
+	arg.flags = mode;
+	igt_fork(child, sysconf(_SC_NPROCESSORS_ONLN)) {
+		struct sched_param rt = {.sched_priority = 99 };
+		cpu_set_t allowed;
+		unsigned long count = 0;
+
+		sched_setscheduler(getpid(), SCHED_RR, &rt);
+
+		CPU_ZERO(&allowed);
+		CPU_SET(child, &allowed);
+		sched_setaffinity(getpid(), sizeof(cpu_set_t), &allowed);
+
+		igt_until_timeout(timeout) {
+			arg.crtc_id = r->crtcs[hars_petruska_f54_1_random() % r->count_crtcs];
+			do_ioctl(data->fd, DRM_IOCTL_MODE_CURSOR, &arg);
+			count++;
+		}
+
+		igt_info("[%d] count=%lu\n", child, count);
+	}
+	igt_waitchildren();
+
+	gem_close(data->fd, arg.handle);
+	drmModeFreeResources(r);
+}
+
+igt_main
+{
+	struct data data = { .fd = -1 };
+
+	igt_skip_on_simulation();
+
+	igt_fixture {
+		data.fd = drm_open_driver_master(DRIVER_INTEL);
+		kmstest_set_vt_graphics_mode();
+	}
+
+	igt_subtest("stress-bo")
+		stress(&data, DRM_MODE_CURSOR_BO, 20);
+	igt_subtest("stress-move")
+		stress(&data, DRM_MODE_CURSOR_MOVE, 20);
+
+	igt_fixture {
+	}
+}