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 * Daniel Vetter <daniel.vetter@ffwll.ch>
28 /** @file gem_tiled_pread_pwrite.c
30 * This is a test of pread's behavior on tiled objects with respect to the
31 * reported swizzling value.
33 * The goal is to exercise the slow_bit17_copy path for reading on bit17
34 * machines, but will also be useful for catching swizzling value bugs on
39 * Testcase: Exercise swizzle code for swapping
41 * The swizzle checks in the swapin path are at a different place than the ones
42 * for pread/pwrite, so we need to check them separately.
44 * This test obviously needs swap present (and exits if none is detected).
56 #include <sys/ioctl.h>
61 #include "intel_gpu_tools.h"
65 static uint32_t linear[WIDTH * HEIGHT];
66 static uint32_t current_tiling_mode;
68 #define PAGE_SIZE 4096
71 create_bo_and_fill(int fd)
77 handle = gem_create(fd, sizeof(linear));
78 gem_set_tiling(fd, handle, current_tiling_mode, WIDTH * sizeof(uint32_t));
80 /* Fill the BO with dwords starting at start_val */
81 data = gem_mmap(fd, handle, sizeof(linear), PROT_READ | PROT_WRITE);
82 for (i = 0; i < WIDTH*HEIGHT; i++)
84 munmap(data, sizeof(linear));
93 main(int argc, char **argv)
99 current_tiling_mode = I915_TILING_X;
102 /* need slightly more than total ram */
103 count = intel_get_total_ram_mb() * 11 / 10;
104 bo_handles = calloc(count, sizeof(uint32_t));
107 idx_arr = calloc(count, sizeof(int));
110 if (intel_get_total_swap_mb() == 0) {
111 printf("no swap detected\n");
115 for (i = 0; i < count; i++)
116 bo_handles[i] = create_bo_and_fill(fd);
118 for (i = 0; i < count; i++)
121 drmtest_permute_array(idx_arr, count,
122 drmtest_exchange_int);
124 for (i = 0; i < count/2; i++) {
125 /* Check the target bo's contents. */
126 data = gem_mmap(fd, bo_handles[idx_arr[i]],
127 sizeof(linear), PROT_READ | PROT_WRITE);
128 for (j = 0; j < WIDTH*HEIGHT; j++)
130 fprintf(stderr, "mismatch at %i: %i\n",
134 munmap(data, sizeof(linear));