| /* |
| * Copyright © 2008 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: |
| * Eric Anholt <eric@anholt.net> |
| * |
| */ |
| |
| #include "igt.h" |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <sys/ioctl.h> |
| #include "drm.h" |
| |
| #define OBJECT_SIZE 16384 |
| |
| static int |
| do_read(int fd, int handle, void *buf, int offset, int size) |
| { |
| struct drm_i915_gem_pread gem_pread; |
| |
| /* Ensure that we don't have any convenient data in buf in case |
| * we fail. |
| */ |
| memset(buf, 0xd0, size); |
| |
| memset(&gem_pread, 0, sizeof(gem_pread)); |
| gem_pread.handle = handle; |
| gem_pread.data_ptr = to_user_pointer(buf); |
| gem_pread.size = size; |
| gem_pread.offset = offset; |
| |
| return ioctl(fd, DRM_IOCTL_I915_GEM_PREAD, &gem_pread); |
| } |
| |
| static int |
| do_write(int fd, int handle, void *buf, int offset, int size) |
| { |
| struct drm_i915_gem_pwrite gem_pwrite; |
| |
| memset(&gem_pwrite, 0, sizeof(gem_pwrite)); |
| gem_pwrite.handle = handle; |
| gem_pwrite.data_ptr = to_user_pointer(buf); |
| gem_pwrite.size = size; |
| gem_pwrite.offset = offset; |
| |
| return ioctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &gem_pwrite); |
| } |
| |
| int fd; |
| uint32_t handle; |
| |
| igt_main |
| { |
| uint8_t expected[OBJECT_SIZE]; |
| uint8_t buf[OBJECT_SIZE]; |
| int ret; |
| |
| igt_skip_on_simulation(); |
| |
| igt_fixture { |
| fd = drm_open_driver(DRIVER_INTEL); |
| |
| handle = gem_create(fd, OBJECT_SIZE); |
| } |
| |
| igt_subtest("new-obj") { |
| igt_info("Testing contents of newly created object.\n"); |
| ret = do_read(fd, handle, buf, 0, OBJECT_SIZE); |
| igt_assert(ret == 0); |
| memset(&expected, 0, sizeof(expected)); |
| igt_assert(memcmp(expected, buf, sizeof(expected)) == 0); |
| } |
| |
| igt_subtest("beyond-EOB") { |
| igt_info("Testing read beyond end of buffer.\n"); |
| ret = do_read(fd, handle, buf, OBJECT_SIZE / 2, OBJECT_SIZE); |
| igt_assert(ret == -1 && errno == EINVAL); |
| } |
| |
| igt_subtest("read-write") { |
| igt_info("Testing full write of buffer\n"); |
| memset(buf, 0, sizeof(buf)); |
| memset(buf + 1024, 0x01, 1024); |
| memset(expected + 1024, 0x01, 1024); |
| ret = do_write(fd, handle, buf, 0, OBJECT_SIZE); |
| igt_assert(ret == 0); |
| ret = do_read(fd, handle, buf, 0, OBJECT_SIZE); |
| igt_assert(ret == 0); |
| igt_assert(memcmp(buf, expected, sizeof(buf)) == 0); |
| |
| igt_info("Testing partial write of buffer\n"); |
| memset(buf + 4096, 0x02, 1024); |
| memset(expected + 4096, 0x02, 1024); |
| ret = do_write(fd, handle, buf + 4096, 4096, 1024); |
| igt_assert(ret == 0); |
| ret = do_read(fd, handle, buf, 0, OBJECT_SIZE); |
| igt_assert(ret == 0); |
| igt_assert(memcmp(buf, expected, sizeof(buf)) == 0); |
| |
| igt_info("Testing partial read of buffer\n"); |
| ret = do_read(fd, handle, buf, 512, 1024); |
| igt_assert(ret == 0); |
| igt_assert(memcmp(buf, expected + 512, 1024) == 0); |
| } |
| |
| igt_subtest("read-bad-handle") { |
| igt_info("Testing read of bad buffer handle\n"); |
| ret = do_read(fd, 1234, buf, 0, 1024); |
| igt_assert(ret == -1 && errno == ENOENT); |
| } |
| |
| igt_subtest("write-bad-handle") { |
| igt_info("Testing write of bad buffer handle\n"); |
| ret = do_write(fd, 1234, buf, 0, 1024); |
| igt_assert(ret == -1 && errno == ENOENT); |
| } |
| |
| igt_fixture |
| close(fd); |
| } |