1 /* Processor capability information handling macros. PowerPC version.
2 Copyright (C) 2005-2013 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <http://www.gnu.org/licenses/>. */
19 #ifndef _DL_PROCINFO_H
20 #define _DL_PROCINFO_H 1
23 #include <sysdep.h> /* This defines the PPC_FEATURE[2]_* macros. */
25 /* There are 25 bits used, but they are bits 7..31. */
26 #define _DL_HWCAP_FIRST 7
28 /* The total number of available bits (including those prior to
29 _DL_HWCAP_FIRST). Some of these bits might not be used. */
30 #define _DL_HWCAP_COUNT 64
32 /* Features started at bit 31 and decremented as new features were added. */
33 #define _DL_HWCAP_LAST 31
35 /* AT_HWCAP2 features started at bit 31 and decremented as new features were
36 added. HWCAP2 feature bits start at bit 0. */
37 #define _DL_HWCAP2_LAST 31
39 /* These bits influence library search. */
40 #define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \
41 + PPC_FEATURE_HAS_DFP)
43 #define _DL_PLATFORMS_COUNT 14
45 #define _DL_FIRST_PLATFORM 32
46 /* Mask to filter out platforms. */
47 #define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \
48 << _DL_FIRST_PLATFORM)
50 /* Platform bits (relative to _DL_FIRST_PLATFORM). */
51 #define PPC_PLATFORM_POWER4 0
52 #define PPC_PLATFORM_PPC970 1
53 #define PPC_PLATFORM_POWER5 2
54 #define PPC_PLATFORM_POWER5_PLUS 3
55 #define PPC_PLATFORM_POWER6 4
56 #define PPC_PLATFORM_CELL_BE 5
57 #define PPC_PLATFORM_POWER6X 6
58 #define PPC_PLATFORM_POWER7 7
59 #define PPC_PLATFORM_PPCA2 8
60 #define PPC_PLATFORM_PPC405 9
61 #define PPC_PLATFORM_PPC440 10
62 #define PPC_PLATFORM_PPC464 11
63 #define PPC_PLATFORM_PPC476 12
64 #define PPC_PLATFORM_POWER8 13
66 static inline const char *
67 __attribute__ ((unused
))
68 _dl_hwcap_string (int idx
)
70 return GLRO(dl_powerpc_cap_flags
)[idx
- _DL_HWCAP_FIRST
];
73 static inline const char *
74 __attribute__ ((unused
))
75 _dl_platform_string (int idx
)
77 return GLRO(dl_powerpc_platforms
)[idx
- _DL_FIRST_PLATFORM
];
81 __attribute__ ((unused
))
82 _dl_string_hwcap (const char *str
)
84 for (int i
= _DL_HWCAP_FIRST
; i
< _DL_HWCAP_COUNT
; ++i
)
85 if (strcmp (str
, _dl_hwcap_string (i
)) == 0)
91 __attribute__ ((unused
, always_inline
))
92 _dl_string_platform (const char *str
)
97 if (strncmp (str
, GLRO(dl_powerpc_platforms
)[PPC_PLATFORM_POWER4
], 5) == 0)
104 ret
= _DL_FIRST_PLATFORM
+ PPC_PLATFORM_POWER4
;
107 ret
= _DL_FIRST_PLATFORM
+ PPC_PLATFORM_POWER5
;
110 ret
= _DL_FIRST_PLATFORM
+ PPC_PLATFORM_POWER5_PLUS
;
115 ret
= _DL_FIRST_PLATFORM
+ PPC_PLATFORM_POWER6
;
118 ret
= _DL_FIRST_PLATFORM
+ PPC_PLATFORM_POWER6X
;
123 ret
= _DL_FIRST_PLATFORM
+ PPC_PLATFORM_POWER7
;
126 ret
= _DL_FIRST_PLATFORM
+ PPC_PLATFORM_POWER8
;
134 else if (strncmp (str
, GLRO(dl_powerpc_platforms
)[PPC_PLATFORM_PPC970
],
137 if (strcmp (str
+ 3, GLRO(dl_powerpc_platforms
)[PPC_PLATFORM_PPC970
]
139 return _DL_FIRST_PLATFORM
+ PPC_PLATFORM_PPC970
;
140 else if (strcmp (str
+ 3,
141 GLRO(dl_powerpc_platforms
)[PPC_PLATFORM_CELL_BE
] + 3)
143 return _DL_FIRST_PLATFORM
+ PPC_PLATFORM_CELL_BE
;
144 else if (strcmp (str
+ 3,
145 GLRO(dl_powerpc_platforms
)[PPC_PLATFORM_PPCA2
] + 3)
147 return _DL_FIRST_PLATFORM
+ PPC_PLATFORM_PPCA2
;
148 else if (strcmp (str
+ 3,
149 GLRO(dl_powerpc_platforms
)[PPC_PLATFORM_PPC405
] + 3)
151 return _DL_FIRST_PLATFORM
+ PPC_PLATFORM_PPC405
;
152 else if (strcmp (str
+ 3,
153 GLRO(dl_powerpc_platforms
)[PPC_PLATFORM_PPC440
] + 3)
155 return _DL_FIRST_PLATFORM
+ PPC_PLATFORM_PPC440
;
156 else if (strcmp (str
+ 3,
157 GLRO(dl_powerpc_platforms
)[PPC_PLATFORM_PPC464
] + 3)
159 return _DL_FIRST_PLATFORM
+ PPC_PLATFORM_PPC464
;
160 else if (strcmp (str
+ 3,
161 GLRO(dl_powerpc_platforms
)[PPC_PLATFORM_PPC476
] + 3)
163 return _DL_FIRST_PLATFORM
+ PPC_PLATFORM_PPC476
;
171 __attribute__ ((unused
))
172 _dl_procinfo (unsigned int type
, unsigned long int word
)
177 _dl_printf ("AT_HWCAP: ");
179 for (int i
= _DL_HWCAP_FIRST
; i
<= _DL_HWCAP_LAST
; ++i
)
181 _dl_printf (" %s", _dl_hwcap_string (i
));
185 unsigned int offset
= _DL_HWCAP_LAST
+ 1;
187 _dl_printf ("AT_HWCAP2: ");
189 /* We have to go through them all because the kernel added the
190 AT_HWCAP2 features starting with the high bits. */
191 for (int i
= 0; i
<= _DL_HWCAP2_LAST
; ++i
)
193 _dl_printf (" %s", _dl_hwcap_string (offset
+ i
));
197 /* This should not happen. */
205 #endif /* dl-procinfo.h */