2 * Copyright (c) 2012 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 * Mika Kuoppala <mika.kuoppala@intel.com>
34 #include "ioctl_wrappers.h"
35 #include "intel_bufmgr.h"
37 /* Testcase: check parallel access to tiled memory
39 * Parallel access to tiled memory caused sigbus
50 static drm_intel_bufmgr *bufmgr;
51 static struct thread_ctx tctx[NUM_THREADS];
53 static void *copy_fn(void *p)
56 struct thread_ctx *c = p;
58 buf = malloc(WIDTH * HEIGHT);
62 memcpy(buf, c->bo->virtual, WIDTH * HEIGHT);
68 static int copy_tile_threaded(drm_intel_bo *bo)
72 pthread_t thr[NUM_THREADS];
75 for (i = 0; i < NUM_THREADS; i++) {
77 r = pthread_create(&thr[i], NULL, copy_fn, (void *)&tctx[i]);
81 for (i = 0; i < NUM_THREADS; i++) {
82 pthread_join(thr[i], &status);
83 igt_assert(status == 0);
93 uint32_t tiling_mode = I915_TILING_Y;
94 unsigned long pitch = 0;
97 igt_skip_on_simulation();
102 bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
105 bo = drm_intel_bo_alloc_tiled(bufmgr, "mmap bo", WIDTH, HEIGHT, 1,
106 &tiling_mode, &pitch, 0);
109 r = drm_intel_gem_bo_map_gtt(bo);
112 r = copy_tile_threaded(bo);
115 r = drm_intel_gem_bo_unmap_gtt(bo);
118 drm_intel_bo_unreference(bo);
119 drm_intel_bufmgr_destroy(bufmgr);