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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup generic |
29 | /** @addtogroup generic |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef KERN_MACROS_H_ |
35 | #ifndef KERN_MACROS_H_ |
36 | #define KERN_MACROS_H_ |
36 | #define KERN_MACROS_H_ |
37 | 37 | ||
38 | #ifndef __ASM__ |
38 | #ifndef __ASM__ |
39 | 39 | ||
40 | #include <arch/types.h> |
40 | #include <arch/types.h> |
41 | 41 | ||
42 | /** Return true if the intervals overlap. |
42 | /** Return true if the intervals overlap. |
43 | * |
43 | * |
44 | * @param s1 Start address of the first interval. |
44 | * @param s1 Start address of the first interval. |
45 | * @param sz1 Size of the first interval. |
45 | * @param sz1 Size of the first interval. |
46 | * @param s2 Start address of the second interval. |
46 | * @param s2 Start address of the second interval. |
47 | * @param sz2 Size of the second interval. |
47 | * @param sz2 Size of the second interval. |
48 | */ |
48 | */ |
49 | static inline int overlaps(uintptr_t s1, size_t sz1, uintptr_t s2, size_t sz2) |
49 | static inline int overlaps(uintptr_t s1, size_t sz1, uintptr_t s2, size_t sz2) |
50 | { |
50 | { |
51 | uintptr_t e1 = s1 + sz1; |
51 | uintptr_t e1 = s1 + sz1; |
52 | uintptr_t e2 = s2 + sz2; |
52 | uintptr_t e2 = s2 + sz2; |
53 | 53 | ||
54 | return ((s1 < e2) && (s2 < e1)); |
54 | return ((s1 < e2) && (s2 < e1)); |
55 | } |
55 | } |
56 | 56 | ||
57 | #endif /* __ASM__ */ |
57 | #endif /* __ASM__ */ |
58 | 58 | ||
59 | #define isdigit(d) (((d) >= '0') && ((d) <= '9')) |
59 | #define isdigit(d) (((d) >= '0') && ((d) <= '9')) |
60 | #define islower(c) (((c) >= 'a') && ((c) <= 'z')) |
60 | #define islower(c) (((c) >= 'a') && ((c) <= 'z')) |
61 | #define isupper(c) (((c) >= 'A') && ((c) <= 'Z')) |
61 | #define isupper(c) (((c) >= 'A') && ((c) <= 'Z')) |
62 | #define isalpha(c) (is_lower((c)) || is_upper((c))) |
62 | #define isalpha(c) (is_lower((c)) || is_upper((c))) |
63 | #define isalphanum(c) (is_alpha((c)) || is_digit((c))) |
63 | #define isalphanum(c) (is_alpha((c)) || is_digit((c))) |
64 | #define isspace(c) \ |
64 | #define isspace(c) \ |
65 | (((c) == ' ') || ((c) == '\t') || ((c) == '\n') || ((c) == '\r')) |
65 | (((c) == ' ') || ((c) == '\t') || ((c) == '\n') || ((c) == '\r')) |
66 | 66 | ||
67 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
67 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
68 | #define max(a, b) ((a) > (b) ? (a) : (b)) |
68 | #define max(a, b) ((a) > (b) ? (a) : (b)) |
69 | 69 | ||
70 | #define min3(a, b, c) ((a) < (b) ? (min(a, c)) : (min(b, c))) |
70 | #define min3(a, b, c) ((a) < (b) ? (min(a, c)) : (min(b, c))) |
71 | #define max3(a, b, c) ((a) > (b) ? (max(a, c)) : (max(b, c))) |
71 | #define max3(a, b, c) ((a) > (b) ? (max(a, c)) : (max(b, c))) |
72 | 72 | ||
73 | /* Compute overlapping of physical addresses */ |
73 | /* Compute overlapping of physical addresses */ |
74 | #define PA_overlaps(x, szx, y, szy) \ |
74 | #define PA_overlaps(x, szx, y, szy) \ |
75 | overlaps(KA2PA((x)), (szx), KA2PA((y)), (szy)) |
75 | overlaps(KA2PA((x)), (szx), KA2PA((y)), (szy)) |
76 | 76 | ||
77 | #define SIZE2KB(size) ((size) >> 10) |
77 | #define SIZE2KB(size) ((size) >> 10) |
78 | #define SIZE2MB(size) ((size) >> 20) |
78 | #define SIZE2MB(size) ((size) >> 20) |
79 | 79 | ||
80 | #define KB2SIZE(kb) ((kb) << 10) |
80 | #define KB2SIZE(kb) ((kb) << 10) |
81 | #define MB2SIZE(mb) ((mb) << 20) |
81 | #define MB2SIZE(mb) ((mb) << 20) |
82 | 82 | ||
83 | #define STRING(arg) STRING_ARG(arg) |
83 | #define STRING(arg) STRING_ARG(arg) |
84 | #define STRING_ARG(arg) #arg |
84 | #define STRING_ARG(arg) #arg |
85 | 85 | ||
86 | #define LOWER32(arg) ((arg) & 0xffffffff) |
86 | #define LOWER32(arg) ((arg) & 0xffffffff) |
87 | #define UPPER32(arg) (((arg) >> 32) & 0xffffffff) |
87 | #define UPPER32(arg) (((arg) >> 32) & 0xffffffff) |
88 | 88 | ||
89 | #define MERGE_LOHI32(lo, hi) ((lo & 0xffffffff) | ((hi & 0xffffffff) < 32)) |
89 | #define MERGE_LOHI32(lo, hi) ((lo & 0xffffffff) | ((hi & 0xffffffff) << 32)) |
90 | 90 | ||
91 | /** Pseudorandom generator |
91 | /** Pseudorandom generator |
92 | * |
92 | * |
93 | * A pretty standard linear congruential pseudorandom |
93 | * A pretty standard linear congruential pseudorandom |
94 | * number generator (m = 2^32 or 2^64 depending on architecture). |
94 | * number generator (m = 2^32 or 2^64 depending on architecture). |
95 | * |
95 | * |
96 | */ |
96 | */ |
97 | #define RANDI(seed) \ |
97 | #define RANDI(seed) \ |
98 | ({ \ |
98 | ({ \ |
99 | (seed) = 1103515245 * (seed) + 12345; \ |
99 | (seed) = 1103515245 * (seed) + 12345; \ |
100 | (seed); \ |
100 | (seed); \ |
101 | }) |
101 | }) |
102 | 102 | ||
103 | #endif |
103 | #endif |
104 | 104 | ||
105 | /** @} |
105 | /** @} |
106 | */ |
106 | */ |
107 | 107 |