2 * arm-specific definitions for cortex-a8
3 * these are used in C and assembler
5 * `cortex' refers specifically to the cortex-a8.
9 * Program Status Registers
11 #define PsrMusr 0x00000010 /* mode */
12 #define PsrMfiq 0x00000011
13 #define PsrMirq 0x00000012
14 #define PsrMsvc 0x00000013 /* `protected mode for OS' */
15 #define PsrMmon 0x00000016 /* `secure monitor' (trustzone hyper) */
16 #define PsrMabt 0x00000017
17 #define PsrMund 0x0000001B
18 #define PsrMsys 0x0000001F /* `privileged user mode for OS' (trustzone) */
19 #define PsrMask 0x0000001F
21 #define PsrDfiq 0x00000040 /* disable FIQ interrupts */
22 #define PsrDirq 0x00000080 /* disable IRQ interrupts */
24 #define PsrV 0x10000000 /* overflow */
25 #define PsrC 0x20000000 /* carry/borrow/extend */
26 #define PsrZ 0x40000000 /* zero */
27 #define PsrN 0x80000000 /* negative/less than */
32 #define CpFP 10 /* float FP, VFP cfg. */
33 #define CpDFP 11 /* double FP */
34 #define CpSC 15 /* System Control */
37 * CpFSR op1==0, Crm==0 opcode 2 values.
39 #define CpDFSR 0 /* data fault status */
40 #define CpIFSR 1 /* instruction fault status */
43 * Primary (CRn) CpSC registers.
45 #define CpID 0 /* ID and cache type */
46 #define CpCONTROL 1 /* miscellaneous control */
47 #define CpTTB 2 /* Translation Table Base(s) */
48 #define CpDAC 3 /* Domain Access Control */
49 #define CpFSR 5 /* Fault Status */
50 #define CpFAR 6 /* Fault Address */
51 #define CpCACHE 7 /* cache/write buffer control */
52 #define CpTLB 8 /* TLB control */
53 #define CpCLD 9 /* L2 Cache Lockdown, op1==1 */
54 #define CpTLD 10 /* TLB Lockdown, with op2 */
55 #define CpVECS 12 /* vector bases, op1==0, Crm==0, op2s (cortex) */
56 #define CpPID 13 /* Process ID */
57 #define CpDTLB 15 /* TLB, L1 cache stuff (cortex) */
60 * CpTTB op1==0, Crm==0 opcode2 values.
63 #define CpTTB1 1 /* cortex */
64 #define CpTTBctl 2 /* cortex */
67 * CpID Secondary (CRm) registers.
72 * CpID op1==0 opcode2 fields.
73 * the cortex has more op1 codes for cache size, etc.
75 #define CpIDid 0 /* main ID */
76 #define CpIDct 1 /* cache type */
77 #define CpIDtlb 3 /* tlb type (cortex) */
78 #define CpIDmpid 5 /* multiprocessor id (cortex) */
80 /* CpIDid op1 values */
81 #define CpIDcsize 1 /* cache size (cortex) */
82 #define CpIDcssel 2 /* cache size select (cortex) */
85 * CpCONTROL op2 codes, op1==0, Crm==0.
92 * CpCONTROL: op1==0, CRm==0, op2==CpMainctl.
93 * main control register.
94 * cortex/armv7 has more ops and CRm values.
96 #define CpCmmu 0x00000001 /* M: MMU enable */
97 #define CpCalign 0x00000002 /* A: alignment fault enable */
98 #define CpCdcache 0x00000004 /* C: data cache on */
99 #define CpCsbo (3<<22|1<<18|1<<16|017<<3) /* must be 1 (armv7) */
100 #define CpCsbz (CpCtre|1<<26|CpCve|1<<15|7<<7) /* must be 0 (armv7) */
101 #define CpCsw (1<<10) /* SW: SWP(B) enable (deprecated in v7) */
102 #define CpCpredict 0x00000800 /* Z: branch prediction (armv7) */
103 #define CpCicache 0x00001000 /* I: instruction cache on */
104 #define CpChv 0x00002000 /* V: high vectors */
105 #define CpCrr (1<<14) /* RR: round robin vs random cache replacement */
106 #define CpCha (1<<17) /* HA: hw access flag enable */
107 #define CpCdz (1<<19) /* DZ: divide by zero fault enable */
108 #define CpCfi (1<<21) /* FI: fast intrs */
109 #define CpCve (1<<24) /* VE: intr vectors enable */
110 #define CpCee (1<<25) /* EE: exception endianness */
111 #define CpCnmfi (1<<27) /* NMFI: non-maskable fast intrs. */
112 #define CpCtre (1<<28) /* TRE: TEX remap enable */
113 #define CpCafe (1<<29) /* AFE: access flag (ttb) enable */
116 * CpCONTROL: op1==0, CRm==0, op2==CpAuxctl.
117 * Auxiliary control register on cortex at least.
119 #define CpACcachenopipe (1<<20) /* don't pipeline cache maint. */
120 #define CpACcp15serial (1<<18) /* serialise CP1[45] ops. */
121 #define CpACcp15waitidle (1<<17) /* CP1[45] wait-on-idle */
122 #define CpACcp15pipeflush (1<<16) /* CP1[45] flush pipeline */
123 #define CpACneonissue1 (1<<12) /* neon single issue */
124 #define CpACldstissue1 (1<<11) /* force single issue ld, st */
125 #define CpACissue1 (1<<10) /* force single issue */
126 #define CpACnobsm (1<<7) /* no branch size mispredicts */
127 #define CpACibe (1<<6) /* cp15 invalidate & btb enable */
128 #define CpACl1neon (1<<5) /* cache neon (FP) data in L1 cache */
129 #define CpACasa (1<<4) /* enable speculative accesses */
130 #define CpACl1pe (1<<3) /* l1 cache parity enable */
131 #define CpACl2en (1<<1) /* l2 cache enable; default 1 */
133 * CpCONTROL Secondary (CRm) registers and opcode2 fields.
135 #define CpCONTROLscr 1
140 * CpCACHE Secondary (CRm) registers and opcode2 fields. op1==0.
141 * In ARM-speak, 'flush' means invalidate and 'clean' means writeback.
143 #define CpCACHEintr 0 /* interrupt (op2==4) */
144 #define CpCACHEisi 1 /* inner-sharable I cache (v7) */
145 #define CpCACHEpaddr 4 /* 0: phys. addr (cortex) */
146 #define CpCACHEinvi 5 /* instruction, branch table */
147 #define CpCACHEinvd 6 /* data or unified */
148 // #define CpCACHEinvu 7 /* unified (not on cortex) */
149 #define CpCACHEva2pa 8 /* va -> pa translation (cortex) */
150 #define CpCACHEwb 10 /* writeback */
151 #define CpCACHEinvdse 11 /* data or unified by mva */
152 #define CpCACHEwbi 14 /* writeback+invalidate */
154 #define CpCACHEall 0 /* entire (not for invd nor wb(i) on cortex) */
155 #define CpCACHEse 1 /* single entry */
156 #define CpCACHEsi 2 /* set/index (set/way) */
157 #define CpCACHEtest 3 /* test loop */
158 #define CpCACHEwait 4 /* wait (prefetch flush on cortex) */
159 #define CpCACHEdmbarr 5 /* wb only (cortex) */
160 #define CpCACHEflushbtc 6 /* flush branch-target cache (cortex) */
161 #define CpCACHEflushbtse 7 /* ⋯ or just one entry in it (cortex) */
164 * CpTLB Secondary (CRm) registers and opcode2 fields.
166 #define CpTLBinvi 5 /* instruction */
167 #define CpTLBinvd 6 /* data */
168 #define CpTLBinvu 7 /* unified */
170 #define CpTLBinv 0 /* invalidate all */
171 #define CpTLBinvse 1 /* invalidate single entry */
172 #define CpTBLasid 2 /* by ASID (cortex) */
175 * CpCLD Secondary (CRm) registers and opcode2 fields for op1==0. (cortex)
177 #define CpCLDena 12 /* enables */
178 #define CpCLDcyc 13 /* cycle counter */
179 #define CpCLDuser 14 /* user enable */
181 #define CpCLDenapmnc 0
182 #define CpCLDenacyc 1
185 * CpCLD Secondary (CRm) registers and opcode2 fields for op1==1.
187 #define CpCLDl2 0 /* l2 cache */
189 #define CpCLDl2aux 2 /* auxiliary control */
192 * l2 cache aux. control
194 #define CpCl2ecc (1<<28) /* use ecc, not parity */
195 #define CpCl2noldforw (1<<27) /* no ld forwarding */
196 #define CpCl2nowrcomb (1<<25) /* no write combining */
197 #define CpCl2nowralldel (1<<24) /* no write allocate delay */
198 #define CpCl2nowrallcomb (1<<23) /* no write allocate combine */
199 #define CpCl2nowralloc (1<<22) /* no write allocate */
200 #define CpCl2eccparity (1<<21) /* enable ecc or parity */
201 #define CpCl2inner (1<<16) /* inner cacheability */
202 /* other bits are tag ram & data ram latencies */
205 * CpTLD Secondary (CRm) registers and opcode2 fields.
207 #define CpTLDlock 0 /* TLB lockdown registers */
208 #define CpTLDpreload 1 /* TLB preload */
210 #define CpTLDi 0 /* TLB instr. lockdown reg. */
211 #define CpTLDd 1 /* " data " " */
214 * CpVECS Secondary (CRm) registers and opcode2 fields.
218 #define CpVECSnorm 0 /* (non-)secure base addr */
219 #define CpVECSmon 1 /* secure monitor base addr */
222 * MMU page table entries.
223 * Mbz (0x10) bit is implementation-defined and must be 0 on the cortex.
226 #define Fault 0x00000000 /* L[12] pte: unmapped */
228 #define Coarse (Mbz|1) /* L1 */
229 #define Section (Mbz|2) /* L1 1MB */
230 #define Fine (Mbz|3) /* L1 */
232 #define Large 0x00000001 /* L2 64KB */
233 #define Small 0x00000002 /* L2 4KB */
234 #define Tiny 0x00000003 /* L2 1KB: not in v7 */
235 #define Buffered 0x00000004 /* L[12]: write-back not -thru */
236 #define Cached 0x00000008 /* L[12] */
239 #define Noaccess 0 /* AP, DAC */
240 #define Krw 1 /* AP */
241 /* armv7 deprecates AP[2] == 1 & AP[1:0] == 2 (Uro), prefers 3 (new in v7) */
242 #define Uro 2 /* AP */
243 #define Urw 3 /* AP */
244 #define Client 1 /* DAC */
245 #define Manager 3 /* DAC */
247 #define AP(n, v) F((v), ((n)*2)+4, 2)
248 #define L1AP(ap) (AP(3, (ap)))
249 #define L2AP(ap) (AP(0, (ap))) /* armv7 */
250 #define DAC(n, v) F((v), (n)*2, 2)
252 #define HVECTORS 0xffff0000