1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef _LINUX_BCACHE_H 20 #define _LINUX_BCACHE_H 21 #include <asm/types.h> 22 #define BITMASK(name, type, field, offset, size) static inline __u64 name(const type *k) { return (k->field >> offset) & ~(~0ULL << size); } static inline void SET_##name(type *k, __u64 v) { k->field &= ~(~(~0ULL << size) << offset); k->field |= (v & ~(~0ULL << size)) << offset; } 23 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24 struct bkey { 25 __u64 high; 26 __u64 low; 27 __u64 ptr[]; 28 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29 }; 30 #define KEY_FIELD(name, field, offset, size) BITMASK(name, struct bkey, field, offset, size) 31 #define PTR_FIELD(name, offset, size) static inline __u64 name(const struct bkey *k, unsigned i) { return (k->ptr[i] >> offset) & ~(~0ULL << size); } static inline void SET_##name(struct bkey *k, unsigned i, __u64 v) { k->ptr[i] &= ~(~(~0ULL << size) << offset); k->ptr[i] |= (v & ~(~0ULL << size)) << offset; } 32 #define KEY_SIZE_BITS 16 33 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 34 #define KEY_MAX_U64S 8 35 #define KEY(inode, offset, size) ((struct bkey) { .high = (1ULL << 63) | ((__u64) (size) << 20) | (inode), .low = (offset) }) 36 #define ZERO_KEY KEY(0, 0, 0) 37 #define MAX_KEY_INODE (~(~0 << 20)) 38 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 39 #define MAX_KEY_OFFSET (~0ULL >> 1) 40 #define MAX_KEY KEY(MAX_KEY_INODE, MAX_KEY_OFFSET, 0) 41 #define KEY_START(k) (KEY_OFFSET(k) - KEY_SIZE(k)) 42 #define START_KEY(k) KEY(KEY_INODE(k), KEY_START(k), 0) 43 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 44 #define PTR_DEV_BITS 12 45 #define PTR_CHECK_DEV ((1 << PTR_DEV_BITS) - 1) 46 #define PTR(gen, offset, dev) ((((__u64) dev) << 51) | ((__u64) offset) << 8 | gen) 47 #define bkey_copy(_dest, _src) memcpy(_dest, _src, bkey_bytes(_src)) 48 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 49 #define BKEY_PAD 8 50 #define BKEY_PADDED(key) union { struct bkey key; __u64 key ## _pad[BKEY_PAD]; } 51 #define BCACHE_SB_VERSION_CDEV 0 52 #define BCACHE_SB_VERSION_BDEV 1 53 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 54 #define BCACHE_SB_VERSION_CDEV_WITH_UUID 3 55 #define BCACHE_SB_VERSION_BDEV_WITH_OFFSET 4 56 #define BCACHE_SB_MAX_VERSION 4 57 #define SB_SECTOR 8 58 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 59 #define SB_SIZE 4096 60 #define SB_LABEL_SIZE 32 61 #define SB_JOURNAL_BUCKETS 256U 62 #define MAX_CACHES_PER_SET 8 63 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 64 #define BDEV_DATA_START_DEFAULT 16 65 struct cache_sb { 66 __u64 csum; 67 __u64 offset; 68 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 69 __u64 version; 70 __u8 magic[16]; 71 __u8 uuid[16]; 72 union { 73 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 74 __u8 set_uuid[16]; 75 __u64 set_magic; 76 }; 77 __u8 label[SB_LABEL_SIZE]; 78 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 79 __u64 flags; 80 __u64 seq; 81 __u64 pad[8]; 82 union { 83 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 84 struct { 85 __u64 nbuckets; 86 __u16 block_size; 87 __u16 bucket_size; 88 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 89 __u16 nr_in_set; 90 __u16 nr_this_dev; 91 }; 92 struct { 93 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 94 __u64 data_offset; 95 }; 96 }; 97 __u32 last_mount; 98 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 99 __u16 first_bucket; 100 union { 101 __u16 njournal_buckets; 102 __u16 keys; 103 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 104 }; 105 __u64 d[SB_JOURNAL_BUCKETS]; 106 }; 107 #define CACHE_REPLACEMENT_LRU 0U 108 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 109 #define CACHE_REPLACEMENT_FIFO 1U 110 #define CACHE_REPLACEMENT_RANDOM 2U 111 #define CACHE_MODE_WRITETHROUGH 0U 112 #define CACHE_MODE_WRITEBACK 1U 113 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 114 #define CACHE_MODE_WRITEAROUND 2U 115 #define CACHE_MODE_NONE 3U 116 #define BDEV_STATE_NONE 0U 117 #define BDEV_STATE_CLEAN 1U 118 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 119 #define BDEV_STATE_DIRTY 2U 120 #define BDEV_STATE_STALE 3U 121 #define JSET_MAGIC 0x245235c1a3625032ULL 122 #define PSET_MAGIC 0x6750e15f87337f91ULL 123 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 124 #define BSET_MAGIC 0x90135c78b99e07f5ULL 125 #define BCACHE_JSET_VERSION_UUIDv1 1 126 #define BCACHE_JSET_VERSION_UUID 1 127 #define BCACHE_JSET_VERSION 1 128 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 129 struct jset { 130 __u64 csum; 131 __u64 magic; 132 __u64 seq; 133 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 134 __u32 version; 135 __u32 keys; 136 __u64 last_seq; 137 BKEY_PADDED(uuid_bucket); 138 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 139 BKEY_PADDED(btree_root); 140 __u16 btree_level; 141 __u16 pad[3]; 142 __u64 prio_bucket[MAX_CACHES_PER_SET]; 143 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 144 union { 145 struct bkey start[0]; 146 __u64 d[0]; 147 }; 148 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 149 }; 150 struct prio_set { 151 __u64 csum; 152 __u64 magic; 153 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 154 __u64 seq; 155 __u32 version; 156 __u32 pad; 157 __u64 next_bucket; 158 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 159 struct bucket_disk { 160 __u16 prio; 161 __u8 gen; 162 } __attribute((packed)) data[]; 163 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 164 }; 165 struct uuid_entry { 166 union { 167 struct { 168 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 169 __u8 uuid[16]; 170 __u8 label[32]; 171 __u32 first_reg; 172 __u32 last_reg; 173 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 174 __u32 invalidated; 175 __u32 flags; 176 __u64 sectors; 177 }; 178 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 179 __u8 pad[128]; 180 }; 181 }; 182 #define BCACHE_BSET_CSUM 1 183 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 184 #define BCACHE_BSET_VERSION 1 185 struct bset { 186 __u64 csum; 187 __u64 magic; 188 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 189 __u64 seq; 190 __u32 version; 191 __u32 keys; 192 union { 193 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 194 struct bkey start[0]; 195 __u64 d[0]; 196 }; 197 }; 198 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 199 struct uuid_entry_v0 { 200 __u8 uuid[16]; 201 __u8 label[32]; 202 __u32 first_reg; 203 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 204 __u32 last_reg; 205 __u32 invalidated; 206 __u32 pad; 207 }; 208 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 209 #endif 210
