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