1 /* 2 * CPU features/facilities helper structs and utility functions for s390 3 * 4 * Copyright 2016 IBM Corp. 5 * 6 * Author(s): Michael Mueller <mimu@linux.vnet.ibm.com> 7 * David Hildenbrand <dahi@linux.vnet.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or (at 10 * your option) any later version. See the COPYING file in the top-level 11 * directory. 12 */ 13 14 #ifndef TARGET_S390X_CPU_FEATURES_H 15 #define TARGET_S390X_CPU_FEATURES_H 16 17 #include "qemu/bitmap.h" 18 #include "cpu_features_def.h" 19 #include "gen-features.h" 20 21 /* CPU features are announced via different ways */ 22 typedef enum { 23 S390_FEAT_TYPE_STFL, 24 S390_FEAT_TYPE_SCLP_CONF_CHAR, 25 S390_FEAT_TYPE_SCLP_CONF_CHAR_EXT, 26 S390_FEAT_TYPE_SCLP_CPU, 27 S390_FEAT_TYPE_MISC, 28 S390_FEAT_TYPE_PLO, 29 S390_FEAT_TYPE_PTFF, 30 S390_FEAT_TYPE_KMAC, 31 S390_FEAT_TYPE_KMC, 32 S390_FEAT_TYPE_KM, 33 S390_FEAT_TYPE_KIMD, 34 S390_FEAT_TYPE_KLMD, 35 S390_FEAT_TYPE_PCKMO, 36 S390_FEAT_TYPE_KMCTR, 37 S390_FEAT_TYPE_KMF, 38 S390_FEAT_TYPE_KMO, 39 S390_FEAT_TYPE_PCC, 40 S390_FEAT_TYPE_PPNO, 41 S390_FEAT_TYPE_KMA, 42 S390_FEAT_TYPE_KDSA, 43 S390_FEAT_TYPE_SORTL, 44 S390_FEAT_TYPE_DFLTCC, 45 } S390FeatType; 46 47 /* Definition of a CPU feature */ 48 typedef struct { 49 const char *name; /* name exposed to the user */ 50 const char *desc; /* description exposed to the user */ 51 S390FeatType type; /* feature type (way of indication)*/ 52 int bit; /* bit within the feature type area (fixed) */ 53 } S390FeatDef; 54 55 /* use ordinary bitmap operations to work with features */ 56 typedef unsigned long S390FeatBitmap[BITS_TO_LONGS(S390_FEAT_MAX)]; 57 58 /* 64bit based bitmap used to init S390FeatBitmap from generated data */ 59 typedef uint64_t S390FeatInit[S390_FEAT_MAX / 64 + 1]; 60 61 const S390FeatDef *s390_feat_def(S390Feat feat); 62 S390Feat s390_feat_by_type_and_bit(S390FeatType type, int bit); 63 void s390_init_feat_bitmap(const S390FeatInit init, S390FeatBitmap bitmap); 64 void s390_fill_feat_block(const S390FeatBitmap features, S390FeatType type, 65 uint8_t *data); 66 void s390_add_from_feat_block(S390FeatBitmap features, S390FeatType type, 67 uint8_t *data); 68 void s390_feat_bitmap_to_ascii(const S390FeatBitmap features, void *opaque, 69 void (*fn)(const char *name, void *opaque)); 70 71 /* Definition of a CPU feature group */ 72 typedef struct { 73 const char *name; /* name exposed to the user */ 74 const char *desc; /* description exposed to the user */ 75 S390FeatBitmap feat; /* features contained in the group */ 76 S390FeatInit init; /* used to init feat from generated data */ 77 } S390FeatGroupDef; 78 79 const S390FeatGroupDef *s390_feat_group_def(S390FeatGroup group); 80 81 #define BE_BIT_NR(BIT) (BIT ^ (BITS_PER_LONG - 1)) 82 83 static inline void set_be_bit(unsigned int bit_nr, uint8_t *array) 84 { 85 array[bit_nr / 8] |= 0x80 >> (bit_nr % 8); 86 } 87 static inline bool test_be_bit(unsigned int bit_nr, const uint8_t *array) 88 { 89 return array[bit_nr / 8] & (0x80 >> (bit_nr % 8)); 90 } 91 #endif /* TARGET_S390X_CPU_FEATURES_H */ 92