2 * arm-specific definitions for cortex-a8 and -a9
3 * these are used in C and assembler
5 * `cortex' refers to the cortex-a8 or -a9.
8 #define NREGS 15 /* general-purpose regs, R0 through R14 */
11 * Program Status Registers
13 #define PsrMusr 0x00000010 /* mode */
14 #define PsrMfiq 0x00000011
15 #define PsrMirq 0x00000012
16 #define PsrMsvc 0x00000013 /* `protected mode for OS' */
17 #define PsrMmon 0x00000016 /* `secure monitor' (trustzone hyper) */
18 #define PsrMabt 0x00000017
19 #define PsrMund 0x0000001B
20 #define PsrMsys 0x0000001F /* `privileged user mode for OS' (trustzone) */
21 #define PsrMask 0x0000001F
23 #define PsrThumb 0x00000020 /* beware hammers */
24 #define PsrDfiq 0x00000040 /* disable FIQ interrupts */
25 #define PsrDirq 0x00000080 /* disable IRQ interrupts */
26 #define PsrDasabt 0x00000100 /* disable asynch aborts */
27 #define PsrBigend 0x00000200
29 #define PsrJaz 0x01000000 /* java mode */
31 #define PsrV 0x10000000 /* overflow */
32 #define PsrC 0x20000000 /* carry/borrow/extend */
33 #define PsrZ 0x40000000 /* zero */
34 #define PsrN 0x80000000 /* negative/less than */
36 #define PsrMbz (PsrJaz|PsrThumb|PsrBigend) /* these bits must be 0 */
39 * MCR and MRC are anti-mnemonic.
40 * MTCP coproc, opcode1, Rd, CRn, CRm[, opcode2] # arm -> coproc
41 * MFCP coproc, opcode1, Rd, CRn, CRm[, opcode2] # coproc -> arm
47 /* instruction decoding */
48 #define ISCPOP(op) ((op) == 0xE || ((op) & ~1) == 0xC)
49 #define ISFPAOP(cp, op) ((cp) == CpOFPA && ISCPOP(op))
50 #define ISVFPOP(cp, op) (((cp) == CpDFP || (cp) == CpFP) && ISCPOP(op))
55 #define CpOFPA 1 /* ancient 7500 FPA */
56 #define CpFP 10 /* float FP, VFP cfg. */
57 #define CpDFP 11 /* double FP */
58 #define CpSC 15 /* System Control */
61 * Primary (CRn) CpSC registers.
63 #define CpID 0 /* ID and cache type */
64 #define CpCONTROL 1 /* miscellaneous control */
65 #define CpTTB 2 /* Translation Table Base(s) */
66 #define CpDAC 3 /* Domain Access Control */
67 #define CpFSR 5 /* Fault Status */
68 #define CpFAR 6 /* Fault Address */
69 #define CpCACHE 7 /* cache/write buffer control */
70 #define CpTLB 8 /* TLB control */
71 #define CpCLD 9 /* L2 Cache Lockdown, op1==1 */
72 #define CpTLD 10 /* TLB Lockdown, with op2 */
73 #define CpVECS 12 /* vector bases, op1==0, Crm==0, op2s (cortex) */
74 #define CpPID 13 /* Process ID */
75 #define CpDTLB 15 /* TLB, L1 cache stuff (cortex) */
78 * CpTTB op1==0, Crm==0 opcode2 values.
80 #define CpTTB0 0 /* secure ttb */
81 #define CpTTB1 1 /* non-secure ttb (v7) */
82 #define CpTTBctl 2 /* v7 */
85 * CpFSR op1==0, Crm==0 opcode 2 values.
87 #define CpDFSR 0 /* data fault status */
88 #define CpIFSR 1 /* instruction fault status */
91 * CpFAR op1==0, Crm==0 opcode 2 values.
93 #define CpDFAR 0 /* data fault address */
94 #define CpIFAR 2 /* instruction fault address */
97 * CpID Secondary (CRm) registers.
102 * CpID CpIDidct op1==0 opcode2 fields.
104 #define CpIDid 0 /* main ID */
105 #define CpIDct 1 /* cache type */
106 #define CpIDtlb 3 /* tlb type (cortex) */
107 #define CpIDmpid 5 /* multiprocessor id (cortex) */
109 /* CpIDid op1 values */
110 #define CpIDcsize 1 /* cache size (cortex) */
111 #define CpIDcssel 2 /* cache size select (cortex) */
114 * CpID CpIDidct op1==CpIDcsize opcode2 fields.
116 #define CpIDcasize 0 /* cache size */
117 #define CpIDclvlid 1 /* cache-level id */
120 * CpCONTROL op2 codes, op1==0, Crm==0.
122 #define CpMainctl 0 /* sctlr */
127 * CpCONTROL: op1==0, CRm==0, op2==CpMainctl.
128 * main control register.
129 * cortex/armv7 has more ops and CRm values.
131 #define CpCmmu 0x00000001 /* M: MMU enable */
132 #define CpCalign 0x00000002 /* A: alignment fault enable */
133 #define CpCdcache 0x00000004 /* C: data cache on */
134 #define CpBigend (1<<7)
135 #define CpCsw (1<<10) /* SW: SWP(B) enable (deprecated in v7) */
136 #define CpCpredict 0x00000800 /* Z: branch prediction (armv7) */
137 #define CpCicache 0x00001000 /* I: instruction cache on */
138 #define CpChv 0x00002000 /* V: high vectors */
139 #define CpCrr (1<<14) /* RR: round robin vs random cache replacement */
140 #define CpCha (1<<17) /* HA: hw access flag enable */
141 #define CpCdz (1<<19) /* DZ: divide by zero fault enable (not cortex-a9) */
142 #define CpCfi (1<<21) /* FI: fast intrs */
143 #define CpCve (1<<24) /* VE: intr vectors enable */
144 #define CpCee (1<<25) /* EE: exception endianness: big */
145 #define CpCnmfi (1<<27) /* NMFI: non-maskable fast intrs. (RO) */
146 #define CpCtre (1<<28) /* TRE: TEX remap enable */
147 #define CpCafe (1<<29) /* AFE: access flag (ttb) enable */
148 #define CpCte (1<<30) /* TE: thumb exceptions */
150 #define CpCsbz (1<<31 | CpCte | CpCafe | CpCtre | 1<<26 | CpCee | CpCve | \
151 CpCfi | 3<<19 | CpCha | 1<<15 | 3<<8 | CpBigend) /* must be 0 (armv7) */
152 #define CpCsbo (3<<22 | 1<<18 | 1<<16 | CpChv | CpCsw | 017<<3) /* must be 1 (armv7) */
155 * CpCONTROL: op1==0, CRm==0, op2==CpAuxctl.
156 * Auxiliary control register on cortex-a9.
157 * these differ from even the cortex-a8 bits.
159 #define CpACparity (1<<9)
160 #define CpACca1way (1<<8) /* cache in a single way */
161 #define CpACcaexcl (1<<7) /* exclusive cache */
162 #define CpACsmp (1<<6) /* SMP l1 caches coherence; needed for ldrex/strex */
163 #define CpAClwr0line (1<<3) /* write full cache line of 0s; see Fullline0 */
164 #define CpACl1pref (1<<2) /* l1 prefetch enable */
165 #define CpACl2pref (1<<1) /* l2 prefetch enable */
166 #define CpACmaintbcast (1<<0) /* broadcast cache & tlb maint. ops */
169 * CpCONTROL Secondary (CRm) registers and opcode2 fields.
171 #define CpCONTROLscr 1
173 #define CpSCRscr 0 /* secure configuration */
176 * CpCACHE Secondary (CRm) registers and opcode2 fields. op1==0.
177 * In ARM-speak, 'flush' means invalidate and 'clean' means writeback.
179 #define CpCACHEintr 0 /* interrupt (op2==4) */
180 #define CpCACHEisi 1 /* inner-sharable I cache (v7) */
181 #define CpCACHEpaddr 4 /* 0: phys. addr (cortex) */
182 #define CpCACHEinvi 5 /* instruction, branch table */
183 #define CpCACHEinvd 6 /* data or unified */
184 // #define CpCACHEinvu 7 /* unified (not on cortex) */
185 #define CpCACHEva2pa 8 /* va -> pa translation (cortex) */
186 #define CpCACHEwb 10 /* writeback */
187 #define CpCACHEinvdse 11 /* data or unified by mva */
188 #define CpCACHEwbi 14 /* writeback+invalidate */
190 #define CpCACHEall 0 /* entire (not for invd nor wb(i) on cortex) */
191 #define CpCACHEse 1 /* single entry */
192 #define CpCACHEsi 2 /* set/index (set/way) */
193 #define CpCACHEtest 3 /* test loop */
194 #define CpCACHEwait 4 /* wait (prefetch flush on cortex) */
195 #define CpCACHEdmbarr 5 /* wb only (cortex) */
196 #define CpCACHEflushbtc 6 /* flush branch-target cache (cortex) */
197 #define CpCACHEflushbtse 7 /* ⋯ or just one entry in it (cortex) */
200 * CpTLB Secondary (CRm) registers and opcode2 fields.
202 #define CpTLBinvi 5 /* instruction */
203 #define CpTLBinvd 6 /* data */
204 #define CpTLBinvu 7 /* unified */
206 #define CpTLBinv 0 /* invalidate all */
207 #define CpTLBinvse 1 /* invalidate single entry */
208 #define CpTBLasid 2 /* by ASID (cortex) */
211 * CpCLD Secondary (CRm) registers and opcode2 fields for op1==0. (cortex)
213 #define CpCLDena 12 /* enables */
214 #define CpCLDcyc 13 /* cycle counter */
215 #define CpCLDuser 14 /* user enable */
217 #define CpCLDenapmnc 0
218 #define CpCLDenacyc 1
221 * CpCLD Secondary (CRm) registers and opcode2 fields for op1==1.
223 #define CpCLDl2 0 /* l2 cache */
225 #define CpCLDl2aux 2 /* auxiliary control */
228 * l2 cache aux. control
230 #define CpCl2ecc (1<<28) /* use ecc, not parity */
231 #define CpCl2noldforw (1<<27) /* no ld forwarding */
232 #define CpCl2nowrcomb (1<<25) /* no write combining */
233 #define CpCl2nowralldel (1<<24) /* no write allocate delay */
234 #define CpCl2nowrallcomb (1<<23) /* no write allocate combine */
235 #define CpCl2nowralloc (1<<22) /* no write allocate */
236 #define CpCl2eccparity (1<<21) /* enable ecc or parity */
237 #define CpCl2inner (1<<16) /* inner cacheability */
238 /* other bits are tag ram & data ram latencies */
241 * CpTLD Secondary (CRm) registers and opcode2 fields.
243 #define CpTLDlock 0 /* TLB lockdown registers */
244 #define CpTLDpreload 1 /* TLB preload */
246 #define CpTLDi 0 /* TLB instr. lockdown reg. */
247 #define CpTLDd 1 /* " data " " */
250 * CpVECS Secondary (CRm) registers and opcode2 fields.
254 #define CpVECSnorm 0 /* (non-)secure base addr */
255 #define CpVECSmon 1 /* secure monitor base addr */
258 * MMU page table entries.
259 * memory must be cached, buffered, sharable and wralloc to participate in
260 * automatic L1 cache coherency.
262 #define Mbz (0<<4) /* L1 page tables: must be 0 */
263 #define Noexecsect (1<<4) /* L1 sections: no execute */
264 #define Fault 0x00000000 /* L[12] pte: unmapped */
266 #define Coarse (Mbz|1) /* L1: page table */
267 #define Section (Mbz|2) /* L1 1MB */
269 * next 2 bits (L1wralloc & L1sharable) and Buffered and Cached must be
270 * set in l1 ptes for LDREX/STREX to work.
272 #define L1wralloc (1<<12) /* L1 TEX */
273 #define L1sharable (1<<16)
274 #define L1nonglobal (1<<17) /* tied to asid */
275 #define Nonsecuresect (1<<19) /* L1 sections */
277 #define Large 0x00000001 /* L2 64KB */
278 #define Noexecsmall 1 /* L2: no execute */
279 #define Small 0x00000002 /* L2 4KB */
281 * next 3 bits (Buffered, Cached, L2wralloc) & L2sharable must be set in
282 * l2 ptes for memory containing locks because LDREX/STREX require them.
284 #define Buffered 0x00000004 /* L[12]: 0 write-thru, 1 -back */
285 #define Cached 0x00000008 /* L[12] */
286 #define L2wralloc (1<<6) /* L2 TEX (small pages) */
287 #define L2apro (1<<9) /* L2 AP: read only */
288 #define L2sharable (1<<10)
289 #define L2nonglobal (1<<11) /* tied to asid */
292 /* attributes for memory containing locks */
293 #define L1ptedramattrs (Cached | Buffered | L1wralloc | L1sharable)
294 #define L2ptedramattrs (Cached | Buffered | L2wralloc | L2sharable)
296 #define Noaccess 0 /* AP, DAC */
297 #define Krw 1 /* AP */
298 /* armv7 deprecates AP[2] == 1 & AP[1:0] == 2 (Uro), prefers 3 (new in v7) */
299 #define Uro 2 /* AP */
300 #define Urw 3 /* AP */
301 #define Client 1 /* DAC */
302 #define Manager 3 /* DAC */
304 #define AP(n, v) F((v), ((n)*2)+4, 2)
305 #define L1AP(ap) (AP(3, (ap)))
306 #define L2AP(ap) (AP(0, (ap))) /* armv7 */
307 #define DAC(n, v) F((v), (n)*2, 2)
309 #define HVECTORS 0xffff0000