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 #include <sys/param.h> 32 #include <sys/physmem.h> 33 34 #include <atf-c.h> 35 36 ATF_TC_WITHOUT_HEAD(hwregion); 37 ATF_TC_BODY(hwregion, tc) 38 { 39 vm_paddr_t avail[4]; 40 size_t len; 41 42 physmem_hardware_region(2 * PAGE_SIZE, PAGE_SIZE); 43 44 len = physmem_avail(avail, 4); 45 ATF_CHECK_EQ(len, 2); 46 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 47 ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); 48 49 /* Add an overlap */ 50 physmem_hardware_region(2 * PAGE_SIZE, 2 * PAGE_SIZE); 51 len = physmem_avail(avail, 4); 52 ATF_CHECK_EQ(len, 2); 53 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 54 ATF_CHECK_EQ(avail[1], 4 * PAGE_SIZE); 55 56 /* Add a touching region */ 57 physmem_hardware_region(4 * PAGE_SIZE, PAGE_SIZE); 58 len = physmem_avail(avail, 4); 59 ATF_CHECK_EQ(len, 2); 60 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 61 ATF_CHECK_EQ(avail[1], 5 * PAGE_SIZE); 62 63 /* Add a partial overlap */ 64 physmem_hardware_region(4 * PAGE_SIZE, 2 * PAGE_SIZE); 65 len = physmem_avail(avail, 4); 66 ATF_CHECK_EQ(len, 2); 67 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 68 ATF_CHECK_EQ(avail[1], 6 * PAGE_SIZE); 69 70 /* Add a non-page aligned section */ 71 physmem_hardware_region(6 * PAGE_SIZE, PAGE_SIZE / 2); 72 len = physmem_avail(avail, 4); 73 ATF_CHECK_EQ(len, 2); 74 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 75 ATF_CHECK_EQ(avail[1], 6 * PAGE_SIZE); 76 77 /* Add the remaining part of the page */ 78 physmem_hardware_region(6 * PAGE_SIZE + PAGE_SIZE / 2, PAGE_SIZE / 2); 79 len = physmem_avail(avail, 4); 80 ATF_CHECK_EQ(len, 2); 81 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 82 ATF_CHECK_EQ(avail[1], 7 * PAGE_SIZE); 83 } 84 85 ATF_TC_WITHOUT_HEAD(hwregion_exclude); 86 ATF_TC_BODY(hwregion_exclude, tc) 87 { 88 vm_paddr_t avail[6]; 89 size_t len; 90 91 physmem_hardware_region(2 * PAGE_SIZE, 5 * PAGE_SIZE); 92 physmem_exclude_region(4 * PAGE_SIZE, PAGE_SIZE, EXFLAG_NOALLOC); 93 94 len = physmem_avail(avail, 6); 95 ATF_CHECK_EQ(len, 4); 96 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 97 ATF_CHECK_EQ(avail[1], 4 * PAGE_SIZE); 98 ATF_CHECK_EQ(avail[2], 5 * PAGE_SIZE); 99 ATF_CHECK_EQ(avail[3], 7 * PAGE_SIZE); 100 101 /* Check mis-aligned/sized excluded regions work */ 102 physmem_exclude_region(4 * PAGE_SIZE - 1, PAGE_SIZE + 2, 103 EXFLAG_NOALLOC); 104 len = physmem_avail(avail, 6); 105 ATF_CHECK_EQ(len, 4); 106 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 107 ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); 108 ATF_CHECK_EQ(avail[2], 6 * PAGE_SIZE); 109 ATF_CHECK_EQ(avail[3], 7 * PAGE_SIZE); 110 } 111 112 ATF_TC_WITHOUT_HEAD(hwregion_unordered); 113 ATF_TC_BODY(hwregion_unordered, tc) 114 { 115 vm_paddr_t avail[4]; 116 size_t len; 117 118 /* Add a partial page */ 119 physmem_hardware_region(PAGE_SIZE, PAGE_SIZE / 2); 120 /* Add a full page not touching the previous */ 121 physmem_hardware_region( 2 * PAGE_SIZE, PAGE_SIZE); 122 /* Add the remainder of the first page */ 123 physmem_hardware_region(PAGE_SIZE + PAGE_SIZE / 2, PAGE_SIZE / 2); 124 125 len = physmem_avail(avail, 4); 126 ATF_CHECK_EQ(len, 2); 127 ATF_CHECK_EQ(avail[0], PAGE_SIZE); 128 ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); 129 } 130 131 ATF_TP_ADD_TCS(tp) 132 { 133 134 ATF_TP_ADD_TC(tp, hwregion); 135 ATF_TP_ADD_TC(tp, hwregion_exclude); 136 ATF_TP_ADD_TC(tp, hwregion_unordered); 137 return (atf_no_error()); 138 } 139