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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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d1f7e8f85b
We generally expect headers in arch/$(ARCH)/include/asm directory are included from kernel sources, but facilities_src.h is not; it is included from the arch/s390/tools/gen_facilities.c tool. There is no reason to expose this header to the public include path. Furthermore, facilities_src.h makes sure to be included only from gen_facilities.c by the following: #ifndef S390_GEN_FACILITIES_C #error "This file can only be included by gen_facilities.c" #endif This check can be removed by merging the two files. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/*
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* Simple program to generate defines out of facility lists that use the bit
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* numbering scheme from the Princples of Operations: most significant bit
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* has bit number 0.
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*
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* Copyright IBM Corp. 2015
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*
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*/
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#include <strings.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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struct facility_def {
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char *name;
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int *bits;
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};
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static struct facility_def facility_defs[] = {
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{
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/*
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* FACILITIES_ALS contains the list of facilities that are
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* required to run a kernel that is compiled e.g. with
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* -march=<machine>.
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*/
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.name = "FACILITIES_ALS",
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.bits = (int[]){
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#ifdef CONFIG_HAVE_MARCH_Z900_FEATURES
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0, /* N3 instructions */
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1, /* z/Arch mode installed */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z990_FEATURES
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18, /* long displacement facility */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
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7, /* stfle */
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17, /* message security assist */
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21, /* extended-immediate facility */
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25, /* store clock fast */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES
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27, /* mvcos */
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32, /* compare and swap and store */
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33, /* compare and swap and store 2 */
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34, /* general extension facility */
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35, /* execute extensions */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
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45, /* fast-BCR, etc. */
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#endif
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#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
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49, /* misc-instruction-extensions */
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52, /* interlocked facility 2 */
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#endif
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#ifdef CONFIG_HAVE_MARCH_Z13_FEATURES
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53, /* load-and-zero-rightmost-byte, etc. */
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#endif
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-1 /* END */
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}
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},
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{
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.name = "FACILITIES_KVM",
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.bits = (int[]){
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0, /* N3 instructions */
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1, /* z/Arch mode installed */
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2, /* z/Arch mode active */
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3, /* DAT-enhancement */
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4, /* idte segment table */
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5, /* idte region table */
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6, /* ASN-and-LX reuse */
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7, /* stfle */
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8, /* enhanced-DAT 1 */
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9, /* sense-running-status */
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10, /* conditional sske */
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13, /* ipte-range */
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14, /* nonquiescing key-setting */
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73, /* transactional execution */
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75, /* access-exception-fetch/store indication */
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76, /* msa extension 3 */
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77, /* msa extension 4 */
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78, /* enhanced-DAT 2 */
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-1 /* END */
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}
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},
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};
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static void print_facility_list(struct facility_def *def)
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{
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unsigned int high, bit, dword, i;
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unsigned long long *array;
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array = calloc(1, 8);
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if (!array)
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exit(EXIT_FAILURE);
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high = 0;
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for (i = 0; def->bits[i] != -1; i++) {
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bit = 63 - (def->bits[i] & 63);
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dword = def->bits[i] / 64;
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if (dword > high) {
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array = realloc(array, (dword + 1) * 8);
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if (!array)
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exit(EXIT_FAILURE);
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memset(array + high + 1, 0, (dword - high) * 8);
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high = dword;
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}
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array[dword] |= 1ULL << bit;
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}
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printf("#define %s ", def->name);
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for (i = 0; i <= high; i++)
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printf("_AC(0x%016llx,UL)%c", array[i], i < high ? ',' : '\n');
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free(array);
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}
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static void print_facility_lists(void)
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{
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unsigned int i;
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for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++)
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print_facility_list(&facility_defs[i]);
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}
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int main(int argc, char **argv)
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{
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printf("#ifndef __ASM_S390_FACILITIES__\n");
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printf("#define __ASM_S390_FACILITIES__\n");
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printf("/*\n");
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printf(" * DO NOT MODIFY.\n");
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printf(" *\n");
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printf(" * This file was generated by %s\n", __FILE__);
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printf(" */\n\n");
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printf("#include <linux/const.h>\n\n");
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print_facility_lists();
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printf("\n#endif\n");
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return 0;
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}
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