diff options
Diffstat (limited to 'tests/sys/kern/subr_physmem_test.c')
| -rw-r--r-- | tests/sys/kern/subr_physmem_test.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/tests/sys/kern/subr_physmem_test.c b/tests/sys/kern/subr_physmem_test.c new file mode 100644 index 000000000000..b810a2016473 --- /dev/null +++ b/tests/sys/kern/subr_physmem_test.c @@ -0,0 +1,137 @@ +/*- + * Copyright (c) 2021 The FreeBSD Foundation + * All rights reserved. + * + * This software was developed by Andrew Turner under + * sponsorship from the FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/param.h> +#include <sys/physmem.h> + +#include <atf-c.h> + +ATF_TC_WITHOUT_HEAD(hwregion); +ATF_TC_BODY(hwregion, tc) +{ + vm_paddr_t avail[4]; + size_t len; + + physmem_hardware_region(2 * PAGE_SIZE, PAGE_SIZE); + + len = physmem_avail(avail, 4); + ATF_CHECK_EQ(len, 2); + ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); + ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); + + /* Add an overlap */ + physmem_hardware_region(2 * PAGE_SIZE, 2 * PAGE_SIZE); + len = physmem_avail(avail, 4); + ATF_CHECK_EQ(len, 2); + ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); + ATF_CHECK_EQ(avail[1], 4 * PAGE_SIZE); + + /* Add a touching region */ + physmem_hardware_region(4 * PAGE_SIZE, PAGE_SIZE); + len = physmem_avail(avail, 4); + ATF_CHECK_EQ(len, 2); + ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); + ATF_CHECK_EQ(avail[1], 5 * PAGE_SIZE); + + /* Add a partial overlap */ + physmem_hardware_region(4 * PAGE_SIZE, 2 * PAGE_SIZE); + len = physmem_avail(avail, 4); + ATF_CHECK_EQ(len, 2); + ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); + ATF_CHECK_EQ(avail[1], 6 * PAGE_SIZE); + + /* Add a non-page aligned section */ + physmem_hardware_region(6 * PAGE_SIZE, PAGE_SIZE / 2); + len = physmem_avail(avail, 4); + ATF_CHECK_EQ(len, 2); + ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); + ATF_CHECK_EQ(avail[1], 6 * PAGE_SIZE); + + /* Add the remaining part of the page */ + physmem_hardware_region(6 * PAGE_SIZE + PAGE_SIZE / 2, PAGE_SIZE / 2); + len = physmem_avail(avail, 4); + ATF_CHECK_EQ(len, 2); + ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); + ATF_CHECK_EQ(avail[1], 7 * PAGE_SIZE); +} + +ATF_TC_WITHOUT_HEAD(hwregion_exclude); +ATF_TC_BODY(hwregion_exclude, tc) +{ + vm_paddr_t avail[6]; + size_t len; + + physmem_hardware_region(2 * PAGE_SIZE, 5 * PAGE_SIZE); + physmem_exclude_region(4 * PAGE_SIZE, PAGE_SIZE, EXFLAG_NOALLOC); + + len = physmem_avail(avail, 6); + ATF_CHECK_EQ(len, 4); + ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); + ATF_CHECK_EQ(avail[1], 4 * PAGE_SIZE); + ATF_CHECK_EQ(avail[2], 5 * PAGE_SIZE); + ATF_CHECK_EQ(avail[3], 7 * PAGE_SIZE); + + /* Check mis-aligned/sized excluded regions work */ + physmem_exclude_region(4 * PAGE_SIZE - 1, PAGE_SIZE + 2, + EXFLAG_NOALLOC); + len = physmem_avail(avail, 6); + ATF_CHECK_EQ(len, 4); + ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); + ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); + ATF_CHECK_EQ(avail[2], 6 * PAGE_SIZE); + ATF_CHECK_EQ(avail[3], 7 * PAGE_SIZE); +} + +ATF_TC_WITHOUT_HEAD(hwregion_unordered); +ATF_TC_BODY(hwregion_unordered, tc) +{ + vm_paddr_t avail[4]; + size_t len; + + /* Add a partial page */ + physmem_hardware_region(PAGE_SIZE, PAGE_SIZE / 2); + /* Add a full page not touching the previous */ + physmem_hardware_region( 2 * PAGE_SIZE, PAGE_SIZE); + /* Add the remainder of the first page */ + physmem_hardware_region(PAGE_SIZE + PAGE_SIZE / 2, PAGE_SIZE / 2); + + len = physmem_avail(avail, 4); + ATF_CHECK_EQ(len, 2); + ATF_CHECK_EQ(avail[0], PAGE_SIZE); + ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, hwregion); + ATF_TP_ADD_TC(tp, hwregion_exclude); + ATF_TP_ADD_TC(tp, hwregion_unordered); + return (atf_no_error()); +} |