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

ankitprasad.r.sharma
2015-07-01T09:40:32Z

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

v2: Added IGT_TEST_DESCRIPTION (Thomas Wood)

Signed-off-by: Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>
---
tests/Makefile.sources | 1 +
tests/gem_create.c | 181 +++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 182 insertions(+)
create mode 100644 tests/gem_create.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 324cbb5..f5790df 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -15,6 +15,7 @@ TESTS_progs_M = \
gem_close_race \
gem_concurrent_blit \
gem_concurrent_all \
+ gem_create \
gem_cs_tlb \
gem_ctx_param_basic \
gem_ctx_bad_exec \
diff --git a/tests/gem_create.c b/tests/gem_create.c
new file mode 100644
index 0000000..6581035
--- /dev/null
+++ b/tests/gem_create.c
@@ -0,0 +1,181 @@
+/*
+ * 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"
+
+IGT_TEST_DESCRIPTION("This is a test for the extended & old gem_create ioctl,"
+ " that includes allocation of object from stolen memory"
+ " and shmem");
+
+#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);
+ }
+}