1 /*- 2 * Copyright (c) 2021 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Andrew Turner under 6 * sponsorship from the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/physmem.h> 35 36 #include <atf-c.h> 37 38 ATF_TC_WITHOUT_HEAD(hwregion); 39 ATF_TC_BODY(hwregion, tc) 40 { 41 vm_paddr_t avail[4]; 42 size_t len; 43 44 physmem_hardware_region(2 * PAGE_SIZE, PAGE_SIZE); 45 46 len = physmem_avail(avail, 4); 47 ATF_CHECK_EQ(len, 2); 48 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 49 ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); 50 51 /* Add an overlap */ 52 physmem_hardware_region(2 * PAGE_SIZE, 2 * PAGE_SIZE); 53 len = physmem_avail(avail, 4); 54 ATF_CHECK_EQ(len, 2); 55 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 56 ATF_CHECK_EQ(avail[1], 4 * PAGE_SIZE); 57 58 /* Add a touching region */ 59 physmem_hardware_region(4 * PAGE_SIZE, PAGE_SIZE); 60 len = physmem_avail(avail, 4); 61 ATF_CHECK_EQ(len, 2); 62 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 63 ATF_CHECK_EQ(avail[1], 5 * PAGE_SIZE); 64 65 /* Add a partial overlap */ 66 physmem_hardware_region(4 * PAGE_SIZE, 2 * PAGE_SIZE); 67 len = physmem_avail(avail, 4); 68 ATF_CHECK_EQ(len, 2); 69 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 70 ATF_CHECK_EQ(avail[1], 6 * PAGE_SIZE); 71 72 /* Add a non-page aligned section */ 73 physmem_hardware_region(6 * PAGE_SIZE, PAGE_SIZE / 2); 74 len = physmem_avail(avail, 4); 75 ATF_CHECK_EQ(len, 2); 76 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 77 ATF_CHECK_EQ(avail[1], 6 * PAGE_SIZE); 78 79 /* Add the remaining part of the page */ 80 physmem_hardware_region(6 * PAGE_SIZE + PAGE_SIZE / 2, PAGE_SIZE / 2); 81 len = physmem_avail(avail, 4); 82 ATF_CHECK_EQ(len, 2); 83 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 84 ATF_CHECK_EQ(avail[1], 7 * PAGE_SIZE); 85 } 86 87 ATF_TC_WITHOUT_HEAD(hwregion_exclude); 88 ATF_TC_BODY(hwregion_exclude, tc) 89 { 90 vm_paddr_t avail[6]; 91 size_t len; 92 93 physmem_hardware_region(2 * PAGE_SIZE, 5 * PAGE_SIZE); 94 physmem_exclude_region(4 * PAGE_SIZE, PAGE_SIZE, EXFLAG_NOALLOC); 95 96 len = physmem_avail(avail, 6); 97 ATF_CHECK_EQ(len, 4); 98 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 99 ATF_CHECK_EQ(avail[1], 4 * PAGE_SIZE); 100 ATF_CHECK_EQ(avail[2], 5 * PAGE_SIZE); 101 ATF_CHECK_EQ(avail[3], 7 * PAGE_SIZE); 102 103 /* Check mis-aligned/sized excluded regions work */ 104 physmem_exclude_region(4 * PAGE_SIZE - 1, PAGE_SIZE + 2, 105 EXFLAG_NOALLOC); 106 len = physmem_avail(avail, 6); 107 ATF_CHECK_EQ(len, 4); 108 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 109 ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); 110 ATF_CHECK_EQ(avail[2], 6 * PAGE_SIZE); 111 ATF_CHECK_EQ(avail[3], 7 * PAGE_SIZE); 112 } 113 114 ATF_TC_WITHOUT_HEAD(hwregion_unordered); 115 ATF_TC_BODY(hwregion_unordered, tc) 116 { 117 vm_paddr_t avail[4]; 118 size_t len; 119 120 /* Add a partial page */ 121 physmem_hardware_region(PAGE_SIZE, PAGE_SIZE / 2); 122 /* Add a full page not touching the previous */ 123 physmem_hardware_region( 2 * PAGE_SIZE, PAGE_SIZE); 124 /* Add the remainder of the first page */ 125 physmem_hardware_region(PAGE_SIZE + PAGE_SIZE / 2, PAGE_SIZE / 2); 126 127 len = physmem_avail(avail, 4); 128 ATF_CHECK_EQ(len, 2); 129 ATF_CHECK_EQ(avail[0], PAGE_SIZE); 130 ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); 131 } 132 133 ATF_TP_ADD_TCS(tp) 134 { 135 136 ATF_TP_ADD_TC(tp, hwregion); 137 ATF_TP_ADD_TC(tp, hwregion_exclude); 138 ATF_TP_ADD_TC(tp, hwregion_unordered); 139 return (atf_no_error()); 140 } 141