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 20 /* CPU features are announced via different ways */ 21 typedef enum { 22 S390_FEAT_TYPE_STFL, 23 S390_FEAT_TYPE_SCLP_CONF_CHAR, 24 S390_FEAT_TYPE_SCLP_CONF_CHAR_EXT, 25 S390_FEAT_TYPE_SCLP_CPU, 26 S390_FEAT_TYPE_MISC, 27 S390_FEAT_TYPE_PLO, 28 S390_FEAT_TYPE_PTFF, 29 S390_FEAT_TYPE_KMAC, 30 S390_FEAT_TYPE_KMC, 31 S390_FEAT_TYPE_KM, 32 S390_FEAT_TYPE_KIMD, 33 S390_FEAT_TYPE_KLMD, 34 S390_FEAT_TYPE_PCKMO, 35 S390_FEAT_TYPE_KMCTR, 36 S390_FEAT_TYPE_KMF, 37 S390_FEAT_TYPE_KMO, 38 S390_FEAT_TYPE_PCC, 39 S390_FEAT_TYPE_PPNO, 40 } S390FeatType; 41 42 /* Definition of a CPU feature */ 43 typedef struct { 44 const char *name; /* name exposed to the user */ 45 const char *desc; /* description exposed to the user */ 46 S390FeatType type; /* feature type (way of indication)*/ 47 int bit; /* bit within the feature type area (fixed) */ 48 } S390FeatDef; 49 50 /* use ordinary bitmap operations to work with features */ 51 typedef unsigned long S390FeatBitmap[BITS_TO_LONGS(S390_FEAT_MAX)]; 52 53 /* 64bit based bitmap used to init S390FeatBitmap from generated data */ 54 typedef uint64_t S390FeatInit[S390_FEAT_MAX / 64 + 1]; 55 56 const S390FeatDef *s390_feat_def(S390Feat feat); 57 S390Feat s390_feat_by_type_and_bit(S390FeatType type, int bit); 58 void s390_init_feat_bitmap(const S390FeatInit init, S390FeatBitmap bitmap); 59 void s390_fill_feat_block(const S390FeatBitmap features, S390FeatType type, 60 uint8_t *data); 61 void s390_add_from_feat_block(S390FeatBitmap features, S390FeatType type, 62 uint8_t *data); 63 void s390_feat_bitmap_to_ascii(const S390FeatBitmap features, void *opaque, 64 void (*fn)(const char *name, void *opaque)); 65 66 /* static groups that will never change */ 67 typedef enum { 68 S390_FEAT_GROUP_PLO, 69 S390_FEAT_GROUP_TOD_CLOCK_STEERING, 70 S390_FEAT_GROUP_GEN13_PTFF_ENH, 71 S390_FEAT_GROUP_MSA, 72 S390_FEAT_GROUP_MSA_EXT_1, 73 S390_FEAT_GROUP_MSA_EXT_2, 74 S390_FEAT_GROUP_MSA_EXT_3, 75 S390_FEAT_GROUP_MSA_EXT_4, 76 S390_FEAT_GROUP_MSA_EXT_5, 77 S390_FEAT_GROUP_MAX, 78 } S390FeatGroup; 79 80 /* Definition of a CPU feature group */ 81 typedef struct { 82 const char *name; /* name exposed to the user */ 83 const char *desc; /* description exposed to the user */ 84 S390FeatBitmap feat; /* features contained in the group */ 85 S390FeatInit init; /* used to init feat from generated data */ 86 } S390FeatGroupDef; 87 88 const S390FeatGroupDef *s390_feat_group_def(S390FeatGroup group); 89 90 #define BE_BIT_NR(BIT) (BIT ^ (BITS_PER_LONG - 1)) 91 #define BE_BIT(BIT) (1ULL < BE_BIT_NR(BIT)) 92 93 #endif /* TARGET_S390X_CPU_FEATURES_H */ 94