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);
ATF_TC_BODY(hwregion,tc)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);
ATF_TC_BODY(hwregion_exclude,tc)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);
ATF_TC_BODY(hwregion_unordered,tc)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
ATF_TP_ADD_TCS(tp)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