[Intel-gfx] [PATCH 3/3] igt/gem_create: Test to validate parameters for GEM_CREATE ioctl

[ankitprasad.r.sharma at intel.com]

From: Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>

This test validates the two parameters (size and flags) GEM_CREATE ioctl.

Signed-off-by: Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>
---
 tests/Makefile.sources |   1 +
 tests/gem_create.c     | 177 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 178 insertions(+)
 create mode 100644 tests/gem_create.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 3f1413f..681973d 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -23,6 +23,7 @@ TESTS_progs_M = \
 	gem_caching \
 	gem_close_race \
 	gem_concurrent_blit \
+	gem_create \
 	gem_stolen \
 	gem_cs_tlb \
 	gem_ctx_param_basic \
diff --git a/tests/gem_create.c b/tests/gem_create.c
new file mode 100644
index 0000000..74597f1
--- /dev/null
+++ b/tests/gem_create.c
@@ -0,0 +1,177 @@
+/*
+ * Copyright © 2011 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.
+ *
+ * Authors:
+ *    Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>
+ *
+ */
+
+/** @file gem_create.c
+ *
+ * This is a test for the extended and old gem_create ioctl, that
+ * includes allocation of object from stolen memory and shmem
+ *
+ * The goal is to simply ensure that basics work and invalid input
+ * combinations are rejected.
+ */
+
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <getopt.h>
+
+#include <drm.h>
+
+#include "ioctl_wrappers.h"
+#include "intel_bufmgr.h"
+#include "intel_batchbuffer.h"
+#include "intel_io.h"
+#include "intel_chipset.h"
+#include "igt_aux.h"
+#include "drmtest.h"
+#include "drm.h"
+#include "i915_drm.h"
+
+#define CLEAR(s) memset(&s, 0, sizeof(s))
+#define SIZE 2048
+#define OFFSET 3072
+
+static struct drm_intel_bufmgr *bufmgr;
+static struct intel_batchbuffer *batch;
+
+static void invalid_flag_test(int fd)
+{
+	int ret = 0;
+
+struct local_i915_gem_create_v2 {
+	uint64_t size;
+	uint32_t handle;
+	uint32_t pad;
+#define I915_CREATE_PLACEMENT_STOLEN (1<<0)
+	uint32_t flags;
+} create;
+
+#define LOCAL_IOCTL_I915_GEM_CREATE       DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct local_i915_gem_create_v2)
+	gem_require_stolen_support(fd);
+
+	create.handle = 0;
+	create.size = SIZE;
+	create.flags = ~I915_CREATE_PLACEMENT_STOLEN;
+	ret = drmIoctl(fd, LOCAL_IOCTL_I915_GEM_CREATE, &create);
+
+	igt_assert(ret <= 0);
+}
+
+static void invalid_size_test(int fd)
+{
+	int handle;
+
+	handle = __gem_create(fd, 0);
+	igt_assert(handle == 0);
+}
+
+/* Creating an object with non-aligned size and trying to access offset of
+ * value (size+x) & length y, where (size+x+y) <= object's last page boundary.
+ * pwrite here must be successful.
+ */
+static void valid_nonaligned_size(int fd)
+{
+	int handle, i;
+	uint32_t buf[1024];
+
+	for (i = 0; i < 1024; i ++)
+		buf[i] = 0xdead;
+
+	handle = gem_create(fd, SIZE);
+	igt_assert(handle != 0);
+
+	gem_write(fd, handle, OFFSET, buf, 256);
+
+	gem_close(fd, handle);
+}
+
+/* Creating an object with non-aligned size and trying to access offset of
+ * value (size+x) & length y, where (size+x+y) > object's last page boundary.
+ * pwrite here must result in failure.
+ */
+static void invalid_nonaligned_size(int fd)
+{
+	int handle, i;
+	uint32_t buf[1024];
+	struct drm_i915_gem_pwrite gem_pwrite;
+
+	for (i = 0; i < 1024; i ++)
+		buf[i] = 0xdead;
+
+	handle = gem_create(fd, SIZE);
+
+	CLEAR(gem_pwrite);
+	gem_pwrite.handle = handle;
+	gem_pwrite.offset = OFFSET;
+	/* Out of bound access */
+	gem_pwrite.size = 2048;
+	gem_pwrite.data_ptr = (uintptr_t)buf;
+	igt_assert(drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &gem_pwrite) != 0);
+
+	gem_close(fd, handle);
+}
+
+igt_main
+{
+	int i, fd, gtt_size_total, gtt_size_mappable;
+	uint32_t devid;
+
+	igt_skip_on_simulation();
+
+	igt_fixture {
+		fd = drm_open_any();
+		devid = intel_get_drm_devid(fd);
+
+		drm_intel_get_aperture_sizes(fd, (size_t*)&gtt_size_total,
+				(size_t*)&gtt_size_mappable);
+		bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
+		batch = intel_batchbuffer_alloc(bufmgr, devid);
+	}
+
+	igt_subtest("stolen-invalid-flag")
+		invalid_flag_test(fd);
+
+	igt_subtest("stolen-invalid-size")
+		invalid_size_test(fd);
+
+	igt_subtest("stolen-valid-nonaligned")
+		valid_nonaligned_size(fd);
+
+	igt_subtest("stolen-invalid-nonaligned")
+		invalid_nonaligned_size(fd);
+
+	igt_fixture {
+		intel_batchbuffer_free(batch);
+		drm_intel_bufmgr_destroy(bufmgr);
+	}
+}
-- 
1.9.1