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/param.h> 31 #include <sys/physmem.h> 32 33 #include <atf-c.h> 34 35 ATF_TC_WITHOUT_HEAD(hwregion); 36 ATF_TC_BODY(hwregion, tc) 37 { 38 vm_paddr_t avail[4]; 39 size_t len; 40 41 physmem_hardware_region(2 * PAGE_SIZE, PAGE_SIZE); 42 43 len = physmem_avail(avail, 4); 44 ATF_CHECK_EQ(len, 2); 45 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 46 ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); 47 48 /* Add an overlap */ 49 physmem_hardware_region(2 * PAGE_SIZE, 2 * PAGE_SIZE); 50 len = physmem_avail(avail, 4); 51 ATF_CHECK_EQ(len, 2); 52 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 53 ATF_CHECK_EQ(avail[1], 4 * PAGE_SIZE); 54 55 /* Add a touching region */ 56 physmem_hardware_region(4 * PAGE_SIZE, PAGE_SIZE); 57 len = physmem_avail(avail, 4); 58 ATF_CHECK_EQ(len, 2); 59 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 60 ATF_CHECK_EQ(avail[1], 5 * PAGE_SIZE); 61 62 /* Add a partial overlap */ 63 physmem_hardware_region(4 * PAGE_SIZE, 2 * PAGE_SIZE); 64 len = physmem_avail(avail, 4); 65 ATF_CHECK_EQ(len, 2); 66 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 67 ATF_CHECK_EQ(avail[1], 6 * PAGE_SIZE); 68 69 /* Add a non-page aligned section */ 70 physmem_hardware_region(6 * PAGE_SIZE, PAGE_SIZE / 2); 71 len = physmem_avail(avail, 4); 72 ATF_CHECK_EQ(len, 2); 73 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 74 ATF_CHECK_EQ(avail[1], 6 * PAGE_SIZE); 75 76 /* Add the remaining part of the page */ 77 physmem_hardware_region(6 * PAGE_SIZE + PAGE_SIZE / 2, PAGE_SIZE / 2); 78 len = physmem_avail(avail, 4); 79 ATF_CHECK_EQ(len, 2); 80 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 81 ATF_CHECK_EQ(avail[1], 7 * PAGE_SIZE); 82 } 83 84 ATF_TC_WITHOUT_HEAD(hwregion_exclude); 85 ATF_TC_BODY(hwregion_exclude, tc) 86 { 87 vm_paddr_t avail[6]; 88 size_t len; 89 90 physmem_hardware_region(2 * PAGE_SIZE, 5 * PAGE_SIZE); 91 physmem_exclude_region(4 * PAGE_SIZE, PAGE_SIZE, EXFLAG_NOALLOC); 92 93 len = physmem_avail(avail, 6); 94 ATF_CHECK_EQ(len, 4); 95 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 96 ATF_CHECK_EQ(avail[1], 4 * PAGE_SIZE); 97 ATF_CHECK_EQ(avail[2], 5 * PAGE_SIZE); 98 ATF_CHECK_EQ(avail[3], 7 * PAGE_SIZE); 99 100 /* Check mis-aligned/sized excluded regions work */ 101 physmem_exclude_region(4 * PAGE_SIZE - 1, PAGE_SIZE + 2, 102 EXFLAG_NOALLOC); 103 len = physmem_avail(avail, 6); 104 ATF_CHECK_EQ(len, 4); 105 ATF_CHECK_EQ(avail[0], 2 * PAGE_SIZE); 106 ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); 107 ATF_CHECK_EQ(avail[2], 6 * PAGE_SIZE); 108 ATF_CHECK_EQ(avail[3], 7 * PAGE_SIZE); 109 } 110 111 ATF_TC_WITHOUT_HEAD(hwregion_unordered); 112 ATF_TC_BODY(hwregion_unordered, tc) 113 { 114 vm_paddr_t avail[4]; 115 size_t len; 116 117 /* Add a partial page */ 118 physmem_hardware_region(PAGE_SIZE, PAGE_SIZE / 2); 119 /* Add a full page not touching the previous */ 120 physmem_hardware_region( 2 * PAGE_SIZE, PAGE_SIZE); 121 /* Add the remainder of the first page */ 122 physmem_hardware_region(PAGE_SIZE + PAGE_SIZE / 2, PAGE_SIZE / 2); 123 124 len = physmem_avail(avail, 4); 125 ATF_CHECK_EQ(len, 2); 126 ATF_CHECK_EQ(avail[0], PAGE_SIZE); 127 ATF_CHECK_EQ(avail[1], 3 * PAGE_SIZE); 128 } 129 130 ATF_TP_ADD_TCS(tp) 131 { 132 133 ATF_TP_ADD_TC(tp, hwregion); 134 ATF_TP_ADD_TC(tp, hwregion_exclude); 135 ATF_TP_ADD_TC(tp, hwregion_unordered); 136 return (atf_no_error()); 137 } 138