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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
c30f6828 HC |
2 | /* |
3 | * Simple program to generate defines out of facility lists that use the bit | |
4 | * numbering scheme from the Princples of Operations: most significant bit | |
5 | * has bit number 0. | |
6 | * | |
7 | * Copyright IBM Corp. 2015 | |
8 | * | |
9 | */ | |
10 | ||
c30f6828 HC |
11 | #include <strings.h> |
12 | #include <string.h> | |
13 | #include <stdlib.h> | |
14 | #include <stdio.h> | |
d1f7e8f8 MY |
15 | |
16 | struct facility_def { | |
17 | char *name; | |
18 | int *bits; | |
19 | }; | |
20 | ||
21 | static struct facility_def facility_defs[] = { | |
22 | { | |
23 | /* | |
24 | * FACILITIES_ALS contains the list of facilities that are | |
25 | * required to run a kernel that is compiled e.g. with | |
26 | * -march=<machine>. | |
27 | */ | |
28 | .name = "FACILITIES_ALS", | |
29 | .bits = (int[]){ | |
30 | #ifdef CONFIG_HAVE_MARCH_Z900_FEATURES | |
31 | 0, /* N3 instructions */ | |
32 | 1, /* z/Arch mode installed */ | |
33 | #endif | |
34 | #ifdef CONFIG_HAVE_MARCH_Z990_FEATURES | |
35 | 18, /* long displacement facility */ | |
36 | #endif | |
37 | #ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES | |
d1f7e8f8 MY |
38 | 21, /* extended-immediate facility */ |
39 | 25, /* store clock fast */ | |
40 | #endif | |
41 | #ifdef CONFIG_HAVE_MARCH_Z10_FEATURES | |
42 | 27, /* mvcos */ | |
43 | 32, /* compare and swap and store */ | |
44 | 33, /* compare and swap and store 2 */ | |
ba794411 | 45 | 34, /* general instructions extension */ |
d1f7e8f8 MY |
46 | 35, /* execute extensions */ |
47 | #endif | |
48 | #ifdef CONFIG_HAVE_MARCH_Z196_FEATURES | |
49 | 45, /* fast-BCR, etc. */ | |
50 | #endif | |
51 | #ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES | |
52 | 49, /* misc-instruction-extensions */ | |
53 | 52, /* interlocked facility 2 */ | |
54 | #endif | |
55 | #ifdef CONFIG_HAVE_MARCH_Z13_FEATURES | |
56 | 53, /* load-and-zero-rightmost-byte, etc. */ | |
6997c323 MS |
57 | #endif |
58 | #ifdef CONFIG_HAVE_MARCH_Z14_FEATURES | |
59 | 58, /* miscellaneous-instruction-extension 2 */ | |
d1f7e8f8 MY |
60 | #endif |
61 | -1 /* END */ | |
62 | } | |
63 | }, | |
64 | { | |
65 | .name = "FACILITIES_KVM", | |
66 | .bits = (int[]){ | |
67 | 0, /* N3 instructions */ | |
68 | 1, /* z/Arch mode installed */ | |
69 | 2, /* z/Arch mode active */ | |
70 | 3, /* DAT-enhancement */ | |
71 | 4, /* idte segment table */ | |
72 | 5, /* idte region table */ | |
73 | 6, /* ASN-and-LX reuse */ | |
74 | 7, /* stfle */ | |
75 | 8, /* enhanced-DAT 1 */ | |
76 | 9, /* sense-running-status */ | |
77 | 10, /* conditional sske */ | |
78 | 13, /* ipte-range */ | |
79 | 14, /* nonquiescing key-setting */ | |
80 | 73, /* transactional execution */ | |
81 | 75, /* access-exception-fetch/store indication */ | |
82 | 76, /* msa extension 3 */ | |
83 | 77, /* msa extension 4 */ | |
84 | 78, /* enhanced-DAT 2 */ | |
cd1836f5 | 85 | 130, /* instruction-execution-protection */ |
a679c547 | 86 | 131, /* enhanced-SOP 2 and side-effect */ |
8fa1696e | 87 | 139, /* multiple epoch facility */ |
e000b8e0 | 88 | 146, /* msa extension 8 */ |
d1f7e8f8 MY |
89 | -1 /* END */ |
90 | } | |
91 | }, | |
92 | }; | |
c30f6828 HC |
93 | |
94 | static void print_facility_list(struct facility_def *def) | |
95 | { | |
96 | unsigned int high, bit, dword, i; | |
97 | unsigned long long *array; | |
98 | ||
99 | array = calloc(1, 8); | |
100 | if (!array) | |
101 | exit(EXIT_FAILURE); | |
102 | high = 0; | |
103 | for (i = 0; def->bits[i] != -1; i++) { | |
104 | bit = 63 - (def->bits[i] & 63); | |
105 | dword = def->bits[i] / 64; | |
106 | if (dword > high) { | |
107 | array = realloc(array, (dword + 1) * 8); | |
108 | if (!array) | |
109 | exit(EXIT_FAILURE); | |
110 | memset(array + high + 1, 0, (dword - high) * 8); | |
111 | high = dword; | |
112 | } | |
113 | array[dword] |= 1ULL << bit; | |
114 | } | |
115 | printf("#define %s ", def->name); | |
116 | for (i = 0; i <= high; i++) | |
117 | printf("_AC(0x%016llx,UL)%c", array[i], i < high ? ',' : '\n'); | |
c30f6828 HC |
118 | free(array); |
119 | } | |
120 | ||
121 | static void print_facility_lists(void) | |
122 | { | |
123 | unsigned int i; | |
124 | ||
125 | for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++) | |
126 | print_facility_list(&facility_defs[i]); | |
127 | } | |
128 | ||
129 | int main(int argc, char **argv) | |
130 | { | |
131 | printf("#ifndef __ASM_S390_FACILITIES__\n"); | |
132 | printf("#define __ASM_S390_FACILITIES__\n"); | |
133 | printf("/*\n"); | |
134 | printf(" * DO NOT MODIFY.\n"); | |
135 | printf(" *\n"); | |
136 | printf(" * This file was generated by %s\n", __FILE__); | |
137 | printf(" */\n\n"); | |
138 | printf("#include <linux/const.h>\n\n"); | |
139 | print_facility_lists(); | |
140 | printf("\n#endif\n"); | |
141 | return 0; | |
142 | } |