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902b3d5c »
2008-12-10 Introduce and use cache-utils.[ch]
1 #include "cache-utils.h"
2
e58ffeb3 »
2009-01-14 Remove all traces of __powerpc__
3 #if defined(_ARCH_PPC)
902b3d5c »
2008-12-10 Introduce and use cache-utils.[ch]
4 struct qemu_cache_conf qemu_cache_conf = {
5 .dcache_bsize = 16,
6 .icache_bsize = 16
7 };
8
9 #if defined _AIX
10 #include <sys/systemcfg.h>
11
12 static void ppc_init_cacheline_sizes(void)
13 {
14 qemu_cache_conf.icache_bsize = _system_configuration.icache_line;
15 qemu_cache_conf.dcache_bsize = _system_configuration.dcache_line;
16 }
17
18 #elif defined __linux__
4710036a »
2008-12-11 Don't require linux/auxvec.h, which isn't always installed with libc.
19
20 #define QEMU_AT_NULL 0
21 #define QEMU_AT_DCACHEBSIZE 19
22 #define QEMU_AT_ICACHEBSIZE 20
902b3d5c »
2008-12-10 Introduce and use cache-utils.[ch]
23
24 static void ppc_init_cacheline_sizes(char **envp)
25 {
26 unsigned long *auxv;
27
28 while (*envp++);
29
4710036a »
2008-12-11 Don't require linux/auxvec.h, which isn't always installed with libc.
30 for (auxv = (unsigned long *) envp; *auxv != QEMU_AT_NULL; auxv += 2) {
902b3d5c »
2008-12-10 Introduce and use cache-utils.[ch]
31 switch (*auxv) {
807d5170 »
2008-12-11 Add lost semicolons
32 case QEMU_AT_DCACHEBSIZE: qemu_cache_conf.dcache_bsize = auxv[1]; break;
33 case QEMU_AT_ICACHEBSIZE: qemu_cache_conf.icache_bsize = auxv[1]; break;
902b3d5c »
2008-12-10 Introduce and use cache-utils.[ch]
34 default: break;
35 }
36 }
37 }
38
39 #elif defined __APPLE__
7344da06 »
2009-02-04 Properly initialize len argument of sysctl and include stdio.h (perror)
40 #include <stdio.h>
902b3d5c »
2008-12-10 Introduce and use cache-utils.[ch]
41 #include <sys/types.h>
42 #include <sys/sysctl.h>
43
44 static void ppc_init_cacheline_sizes(void)
45 {
46 size_t len;
47 unsigned cacheline;
48 int name[2] = { CTL_HW, HW_CACHELINE };
49
7344da06 »
2009-02-04 Properly initialize len argument of sysctl and include stdio.h (perror)
50 len = sizeof(cacheline);
902b3d5c »
2008-12-10 Introduce and use cache-utils.[ch]
51 if (sysctl(name, 2, &cacheline, &len, NULL, 0)) {
52 perror("sysctl CTL_HW HW_CACHELINE failed");
53 } else {
54 qemu_cache_conf.dcache_bsize = cacheline;
55 qemu_cache_conf.icache_bsize = cacheline;
56 }
57 }
58 #endif
59
e4ee916d »
2010-02-19 Add FreeBSD/ppc host ppc_init_cacheline_sizes() implementation.
60 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
4836a2b0 »
2010-03-12 FreeBSD ppc_init_cacheline_sizes(): add missing #includes
61 #include <errno.h>
e4ee916d »
2010-02-19 Add FreeBSD/ppc host ppc_init_cacheline_sizes() implementation.
62 #include <stdio.h>
4836a2b0 »
2010-03-12 FreeBSD ppc_init_cacheline_sizes(): add missing #includes
63 #include <stdlib.h>
64 #include <string.h>
e4ee916d »
2010-02-19 Add FreeBSD/ppc host ppc_init_cacheline_sizes() implementation.
65 #include <sys/types.h>
66 #include <sys/sysctl.h>
67
68 static void ppc_init_cacheline_sizes(void)
69 {
70 size_t len = 4;
71 unsigned cacheline;
72
73 if (sysctlbyname ("machdep.cacheline_size", &cacheline, &len, NULL, 0)) {
74 fprintf(stderr, "sysctlbyname machdep.cacheline_size failed: %s\n",
75 strerror(errno));
76 exit(1);
77 }
78
79 qemu_cache_conf.dcache_bsize = cacheline;
80 qemu_cache_conf.icache_bsize = cacheline;
81 }
82 #endif
83
902b3d5c »
2008-12-10 Introduce and use cache-utils.[ch]
84 #ifdef __linux__
85 void qemu_cache_utils_init(char **envp)
86 {
87 ppc_init_cacheline_sizes(envp);
88 }
89 #else
90 void qemu_cache_utils_init(char **envp)
91 {
92 (void) envp;
93 ppc_init_cacheline_sizes();
94 }
95 #endif
96
e58ffeb3 »
2009-01-14 Remove all traces of __powerpc__
97 #endif /* _ARCH_PPC */
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