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// SPDX-License-Identifier: MIT
/*
* Copyright © 2022 Igalia S.L.
*/
#include "igt.h"
#include "igt_vc4.h"
IGT_TEST_DESCRIPTION("Tests for the VC4's mmap IOCTL");
igt_main
{
int fd;
igt_fixture {
fd = drm_open_driver(DRIVER_VC4);
igt_require(igt_vc4_is_v3d(fd));
}
igt_describe("Make sure an invalid BO cannot be mapped.");
igt_subtest("mmap-bad-handle") {
struct drm_vc4_mmap_bo get = {
.handle = 0xd0d0d0d0,
};
do_ioctl_err(fd, DRM_IOCTL_VC4_MMAP_BO, &get, EINVAL);
}
igt_describe("Test basics of newly mapped bo like default content, write and read "
"coherency, mapping existence after gem_close and unmapping.");
igt_subtest("mmap-bo") {
int handle = igt_vc4_create_bo(fd, PAGE_SIZE);
uint32_t *map = igt_vc4_mmap_bo(fd, handle, PAGE_SIZE, PROT_READ | PROT_WRITE);
uint8_t expected[PAGE_SIZE];
/* Testing contents of newly created objects. */
memset(expected, 0, sizeof(expected));
igt_assert_eq(memcmp(map, expected, sizeof(expected)), 0);
memset(map, 0xd0, PAGE_SIZE);
memset(expected, 0xd0, PAGE_SIZE);
igt_assert_eq(memcmp(expected, map, sizeof(expected)), 0);
/* Testing that mapping stays after close */
gem_close(fd, handle);
igt_assert_eq(memcmp(expected, map, sizeof(expected)), 0);
/* Testing unmapping */
munmap(map, PAGE_SIZE);
}
igt_fixture
drm_close_driver(fd);
}
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