2 * Copyright © 2011 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 * Chris Wilson <chris@chris-wilson.co.uk>
36 #include <sys/ioctl.h>
38 #include "ioctl_wrappers.h"
42 * Testcase: Minmal bo_create and batchbuffer exec
44 * Originally this caught an kernel oops due to the unchecked assumption that
45 * objects have size > 0.
48 static uint32_t do_gem_create(int fd, int size, int *retval)
50 struct drm_i915_gem_create create;
54 create.size = (size + 4095) & -4096;
55 ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
56 igt_assert(retval || ret == 0);
64 static int gem_exec(int fd, struct drm_i915_gem_execbuffer2 *execbuf)
66 return drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, execbuf);
70 static void create0(int fd)
73 igt_info("trying to create a zero-length gem object\n");
74 do_gem_create(fd, 0, &retval);
75 igt_assert(retval == EINVAL);
79 static void exec0(int fd)
81 struct drm_i915_gem_execbuffer2 execbuf;
82 struct drm_i915_gem_exec_object2 exec[1];
83 uint32_t buf[2] = { MI_BATCH_BUFFER_END, 0 };
85 /* Just try executing with a zero-length bo.
86 * We expect the kernel to either accept the nop batch, or reject it
87 * for the zero-length buffer, but never crash.
90 exec[0].handle = gem_create(fd, 4096);
91 gem_write(fd, exec[0].handle, 0, buf, sizeof(buf));
92 exec[0].relocation_count = 0;
93 exec[0].relocs_ptr = 0;
94 exec[0].alignment = 0;
100 execbuf.buffers_ptr = (uintptr_t)exec;
101 execbuf.buffer_count = 1;
102 execbuf.batch_start_offset = 0;
103 execbuf.batch_len = sizeof(buf);
104 execbuf.cliprects_ptr = 0;
105 execbuf.num_cliprects = 0;
109 i915_execbuffer2_set_context_id(execbuf, 0);
112 igt_info("trying to run an empty batchbuffer\n");
113 gem_exec(fd, &execbuf);
115 gem_close(fd, exec[0].handle);
123 igt_skip_on_simulation();