1 // SPDX-License-Identifier: GPL-2.0 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 11 #include <strings.h> 12 #include <string.h> 13 #include <stdlib.h> 14 #include <stdio.h> 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 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 */ 45 34, /* general instructions extension */ 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. */ 57 #endif 58 #ifdef CONFIG_HAVE_MARCH_Z14_FEATURES 59 58, /* miscellaneous-instruction-extension 2 */ 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 */ 85 130, /* instruction-execution-protection */ 86 131, /* enhanced-SOP 2 and side-effect */ 87 139, /* multiple epoch facility */ 88 146, /* msa extension 8 */ 89 -1 /* END */ 90 } 91 }, 92 }; 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'); 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_FACILITY_DEFS__\n"); 132 printf("#define __ASM_S390_FACILITY_DEFS__\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 } 143