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715f6251 | 1 | /* |
2 | * This file is part of the SPL: Solaris Porting Layer. | |
3 | * | |
4 | * Copyright (c) 2008 Lawrence Livermore National Security, LLC. | |
5 | * Produced at Lawrence Livermore National Laboratory | |
6 | * Written by: | |
7 | * Brian Behlendorf <behlendorf1@llnl.gov>, | |
8 | * Herb Wartens <wartens2@llnl.gov>, | |
9 | * Jim Garlick <garlick@llnl.gov> | |
10 | * UCRL-CODE-235197 | |
11 | * | |
12 | * This is free software; you can redistribute it and/or modify it | |
13 | * under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This is distributed in the hope that it will be useful, but WITHOUT | |
18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
20 | * for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License along | |
23 | * with this program; if not, write to the Free Software Foundation, Inc., | |
24 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
25 | */ | |
26 | ||
14c5326c | 27 | #ifndef _SPL_SYSMACROS_H |
28 | #define _SPL_SYSMACROS_H | |
29 | ||
30 | #ifdef __cplusplus | |
31 | extern "C" { | |
32 | #endif | |
33 | ||
34 | #include <linux/module.h> | |
57d1b188 | 35 | #include <sys/debug.h> |
05ae387b | 36 | #include <sys/varargs.h> |
36e6f861 | 37 | #include <sys/zone.h> |
1ec74a11 | 38 | #include <sys/signal.h> |
14c5326c | 39 | |
40 | #ifndef _KERNEL | |
41 | #define _KERNEL __KERNEL__ | |
42 | #endif | |
43 | ||
44 | /* Missing defines. | |
45 | */ | |
ed61a7d0 | 46 | #define FALSE 0 |
47 | #define TRUE 1 | |
b0dd3380 | 48 | |
14c5326c | 49 | #define INT32_MAX INT_MAX |
3b3ba48f | 50 | #define INT32_MIN INT_MIN |
51 | #define UINT32_MAX UINT_MAX | |
52 | #define UINT32_MIN UINT_MIN | |
53 | #define INT64_MAX LLONG_MAX | |
54 | #define INT64_MIN LLONG_MIN | |
55 | #define UINT64_MAX ULLONG_MAX | |
56 | #define UINT64_MIN ULLONG_MIN | |
57 | ||
14c5326c | 58 | #define NBBY 8 |
59 | #define ENOTSUP ENOTSUPP | |
b0dd3380 | 60 | |
05ae387b | 61 | #define MAXMSGLEN 256 |
14c5326c | 62 | #define MAXNAMELEN 256 |
63 | #define MAXPATHLEN PATH_MAX | |
b0dd3380 | 64 | #define MAXOFFSET_T 0x7fffffffffffffffl |
65 | ||
66 | #define MAXBSIZE 8192 | |
67 | #define DEV_BSIZE 512 | |
68 | #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ | |
69 | ||
14c5326c | 70 | #define max_ncpus 64 |
12472b24 | 71 | #define CPU_SEQID smp_processor_id() /* I think... */ |
b0dd3380 | 72 | #define _NOTE(x) |
14c5326c | 73 | |
6adf99e7 | 74 | #define RLIM64_INFINITY RLIM_INFINITY |
75 | ||
14c5326c | 76 | /* 0..MAX_PRIO-1: Process priority |
77 | * 0..MAX_RT_PRIO-1: RT priority tasks | |
78 | * MAX_RT_PRIO..MAX_PRIO-1: SCHED_NORMAL tasks | |
79 | * | |
80 | * Treat shim tasks as SCHED_NORMAL tasks | |
81 | */ | |
82 | #define minclsyspri (MAX_RT_PRIO) | |
83 | #define maxclsyspri (MAX_PRIO-1) | |
84 | ||
85 | #define NICE_TO_PRIO(nice) (MAX_RT_PRIO + (nice) + 20) | |
86 | #define PRIO_TO_NICE(prio) ((prio) - MAX_RT_PRIO - 20) | |
87 | ||
14c5326c | 88 | /* Missing macros |
89 | */ | |
90 | #define PAGESIZE PAGE_SIZE | |
91 | ||
92 | /* from Solaris sys/byteorder.h */ | |
93 | #define BSWAP_8(x) ((x) & 0xff) | |
94 | #define BSWAP_16(x) ((BSWAP_8(x) << 8) | BSWAP_8((x) >> 8)) | |
95 | #define BSWAP_32(x) ((BSWAP_16(x) << 16) | BSWAP_16((x) >> 16)) | |
96 | #define BSWAP_64(x) ((BSWAP_32(x) << 32) | BSWAP_32((x) >> 32)) | |
97 | ||
98 | /* Map some simple functions. | |
99 | */ | |
100 | #define bzero(ptr,size) memset(ptr,0,size) | |
101 | #define bcopy(src,dest,size) memcpy(dest,src,size) | |
b0dd3380 | 102 | #define bcmp(src,dest,size) memcmp((src), (dest), (size_t)(size)) |
a713518f | 103 | |
104 | /* Dtrace probes do not exist in the linux kernel */ | |
105 | ||
106 | #ifdef DTRACE_PROBE1 | |
107 | #undef DTRACE_PROBE1 | |
108 | #endif /* DTRACE_PROBE1 */ | |
3b3ba48f | 109 | #define DTRACE_PROBE1(a, b, c) ((void)0) |
a713518f | 110 | |
111 | #ifdef DTRACE_PROBE2 | |
112 | #undef DTRACE_PROBE2 | |
113 | #endif /* DTRACE_PROBE2 */ | |
3b3ba48f | 114 | #define DTRACE_PROBE2(a, b, c, d, e) ((void)0) |
a713518f | 115 | |
116 | #ifdef DTRACE_PROBE3 | |
117 | #undef DTRACE_PROBE3 | |
118 | #endif /* DTRACE_PROBE3 */ | |
3b3ba48f | 119 | #define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) |
a713518f | 120 | |
121 | #ifdef DTRACE_PROBE4 | |
122 | #undef DTRACE_PROBE4 | |
123 | #endif /* DTRACE_PROBE4 */ | |
3b3ba48f | 124 | #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) |
14c5326c | 125 | |
77b1fe8f | 126 | /* Missing globals */ |
3561541c | 127 | extern char spl_version[16]; |
937879f1 | 128 | extern long spl_hostid; |
129 | extern char hw_serial[11]; | |
14c5326c | 130 | extern int p0; |
131 | ||
77b1fe8f | 132 | /* Missing misc functions */ |
133 | extern int highbit(unsigned long i); | |
57d1b188 | 134 | extern int ddi_strtoul(const char *str, char **nptr, |
2f5d55aa | 135 | int base, unsigned long *result); |
77b1fe8f | 136 | |
14c5326c | 137 | #define makedevice(maj,min) makedev(maj,min) |
138 | ||
14c5326c | 139 | /* common macros */ |
140 | #ifndef MIN | |
141 | #define MIN(a, b) ((a) < (b) ? (a) : (b)) | |
142 | #endif | |
143 | #ifndef MAX | |
144 | #define MAX(a, b) ((a) < (b) ? (b) : (a)) | |
145 | #endif | |
146 | #ifndef ABS | |
147 | #define ABS(a) ((a) < 0 ? -(a) : (a)) | |
148 | #endif | |
149 | ||
150 | /* | |
151 | * Compatibility macros/typedefs needed for Solaris -> Linux port | |
152 | */ | |
153 | #define P2ALIGN(x, align) ((x) & -(align)) | |
154 | #define P2CROSS(x, y, align) (((x) ^ (y)) > (align) - 1) | |
155 | #define P2ROUNDUP(x, align) (-(-(x) & -(align))) | |
156 | #define P2ROUNDUP_TYPED(x, align, type) \ | |
157 | (-(-(type)(x) & -(type)(align))) | |
158 | #define P2PHASE(x, align) ((x) & ((align) - 1)) | |
159 | #define P2NPHASE(x, align) (-(x) & ((align) - 1)) | |
160 | #define P2NPHASE_TYPED(x, align, type) \ | |
161 | (-(type)(x) & ((type)(align) - 1)) | |
162 | #define ISP2(x) (((x) & ((x) - 1)) == 0) | |
163 | #define IS_P2ALIGNED(v, a) ((((uintptr_t)(v)) & ((uintptr_t)(a) - 1)) == 0) | |
164 | ||
165 | /* | |
166 | * Typed version of the P2* macros. These macros should be used to ensure | |
167 | * that the result is correctly calculated based on the data type of (x), | |
168 | * which is passed in as the last argument, regardless of the data | |
169 | * type of the alignment. For example, if (x) is of type uint64_t, | |
170 | * and we want to round it up to a page boundary using "PAGESIZE" as | |
171 | * the alignment, we can do either | |
172 | * P2ROUNDUP(x, (uint64_t)PAGESIZE) | |
173 | * or | |
174 | * P2ROUNDUP_TYPED(x, PAGESIZE, uint64_t) | |
175 | */ | |
176 | #define P2ALIGN_TYPED(x, align, type) \ | |
177 | ((type)(x) & -(type)(align)) | |
178 | #define P2PHASE_TYPED(x, align, type) \ | |
179 | ((type)(x) & ((type)(align) - 1)) | |
180 | #define P2NPHASE_TYPED(x, align, type) \ | |
181 | (-(type)(x) & ((type)(align) - 1)) | |
182 | #define P2ROUNDUP_TYPED(x, align, type) \ | |
183 | (-(-(type)(x) & -(type)(align))) | |
184 | #define P2END_TYPED(x, align, type) \ | |
185 | (-(~(type)(x) & -(type)(align))) | |
186 | #define P2PHASEUP_TYPED(x, align, phase, type) \ | |
187 | ((type)(phase) - (((type)(phase) - (type)(x)) & -(type)(align))) | |
188 | #define P2CROSS_TYPED(x, y, align, type) \ | |
189 | (((type)(x) ^ (type)(y)) > (type)(align) - 1) | |
190 | #define P2SAMEHIGHBIT_TYPED(x, y, type) \ | |
191 | (((type)(x) ^ (type)(y)) < ((type)(x) & (type)(y))) | |
192 | ||
193 | #if defined(_KERNEL) && !defined(_KMEMUSER) && !defined(offsetof) | |
194 | ||
195 | /* avoid any possibility of clashing with <stddef.h> version */ | |
196 | ||
197 | #define offsetof(s, m) ((size_t)(&(((s *)0)->m))) | |
198 | #endif | |
199 | ||
57d86234 | 200 | #ifdef HAVE_3ARGS_INIT_WORK |
201 | ||
202 | #define spl_init_work(wq,cb,d) INIT_WORK((wq), (void *)(cb), (void *)(d)) | |
203 | #define spl_get_work_data(type,field,data) (data) | |
204 | ||
205 | #else | |
206 | ||
207 | #define spl_init_work(wq,cb,d) INIT_WORK((wq), (void *)(cb)); | |
208 | #define spl_get_work_data(type,field,data) container_of(data,type,field) | |
209 | ||
210 | #endif | |
211 | ||
14c5326c | 212 | #ifdef __cplusplus |
213 | } | |
214 | #endif | |
215 | ||
216 | #endif /* _SPL_SYSMACROS_H */ |