2 * Copyright © 2009 Intel Corporation
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6 * to deal in the Software without restriction, including without limitation
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11 * The above copyright notice and this permission notice (including the next
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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,
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24 * Daniel Vetter <daniel.vetter@ffwll.ch>
28 /** @file gem_gtt_cpu_tlb.c
30 * This test checks whether gtt tlbs for cpu access are correctly invalidated.
41 #include <sys/ioctl.h>
46 #include "intel_gpu_tools.h"
48 #define OBJ_SIZE (1024*1024)
50 #define PAGE_SIZE 4096
59 handle = gem_create(fd, OBJ_SIZE);
61 /* Fill the BO with dwords starting at start_val */
62 data = gem_mmap(fd, handle, OBJ_SIZE, PROT_READ | PROT_WRITE);
63 for (i = 0; i < OBJ_SIZE/4; i++)
65 munmap(data, OBJ_SIZE);
71 main(int argc, char **argv)
79 igt_skip_on_simulation();
83 handle = gem_create(fd, OBJ_SIZE);
86 ptr = gem_mmap(fd, handle, OBJ_SIZE, PROT_READ | PROT_WRITE);
88 munmap(ptr, OBJ_SIZE);
90 gem_close(fd, handle);
92 /* stirr up the page allocator a bit. */
93 ptr = malloc(OBJ_SIZE);
95 memset(ptr, 0x1, OBJ_SIZE);
97 handle = create_bo(fd);
99 /* Read a bunch of random subsets of the data and check that they come
102 gem_read(fd, handle, 0, ptr, OBJ_SIZE);
103 for (i = 0; i < OBJ_SIZE/4; i++)
104 igt_assert(ptr[i] == i);