ref: d4124d48f9c7e85fdaa50640035080174c94196e
dir: /sys/src/9/kw/arm.h/
/* * Program Status Registers */ #define PsrMusr 0x00000010 /* mode */ #define PsrMfiq 0x00000011 #define PsrMirq 0x00000012 #define PsrMsvc 0x00000013 #define PsrMabt 0x00000017 #define PsrMund 0x0000001B #define PsrMsys 0x0000001F #define PsrMask 0x0000001F #define PsrDfiq 0x00000040 /* disable FIQ interrupts */ #define PsrDirq 0x00000080 /* disable IRQ interrupts */ #define PsrV 0x10000000 /* overflow */ #define PsrC 0x20000000 /* carry/borrow/extend */ #define PsrZ 0x40000000 /* zero */ #define PsrN 0x80000000 /* negative/less than */ /* instruction decoding */ #define ISCPOP(op) ((op) == 0xE || ((op) & ~1) == 0xC) #define ISFPAOP(cp, op) ((cp) == CpOFPA && ISCPOP(op)) #define ISVFPOP(cp, op) (((cp) == CpDFP || (cp) == CpFP) && ISCPOP(op)) /* * Coprocessors */ #define CpOFPA 1 /* ancient 7500 FPA */ #define CpFP 10 /* float FP, VFP cfg. */ #define CpDFP 11 /* double FP */ #define CpSC 15 /* System Control */ /* * opcode 1 */ #define CpDef 0 /* default */ #define CpL2 1 /* L2 cache operations */ /* * Primary (CRn) CpSC registers. */ #define CpID 0 /* ID and cache type */ #define CpCONTROL 1 /* miscellaneous control */ #define CpTTB 2 /* Translation Table Base */ #define CpDAC 3 /* Domain Access Control */ #define CpFSR 5 /* Fault Status */ #define CpFAR 6 /* Fault Address */ #define CpCACHE 7 /* cache/write buffer control */ #define CpTLB 8 /* TLB control */ #define CpCLD 9 /* Cache Lockdown */ #define CpTLD 10 /* TLB Lockdown */ #define CpPID 13 /* Process ID */ #define CpTESTCFG 15 /* test config. (arm926) */ /* * CpID Secondary (CRm) registers. */ #define CpIDidct 0 /* * CpID op1==0 opcode2 fields. */ #define CpIDid 0 /* main ID */ #define CpIDct 1 /* cache type */ /* * CpCONTROL */ #define CpCmmu 0x00000001 /* M: MMU enable */ #define CpCalign 0x00000002 /* A: alignment fault enable */ #define CpCdcache 0x00000004 /* C: data cache on */ #define CpCwb 0x00000008 /* W: write buffer turned on */ #define CpCi32 0x00000010 /* P: 32-bit program space */ #define CpCd32 0x00000020 /* D: 32-bit data space */ #define CpCbe 0x00000080 /* B: big-endian operation */ #define CpCsystem 0x00000100 /* S: system permission */ #define CpCrom 0x00000200 /* R: ROM permission */ #define CpCicache 0x00001000 /* I: instruction cache on */ #define CpChv 0x00002000 /* V: high vectors */ /* * CpCACHE Secondary (CRm) registers and opcode2 fields. * In ARM-speak, 'flush' means invalidate and 'clean' means writeback. * In arm arch v6, these must be available in user mode: * CpCACHEinvi, CpCACHEwait (prefetch flush) * CpCACHEwb, CpCACHEwait (DSB: data sync barrier) * CpCACHEwb, CpCACHEdmbarr (DMB: data memory barrier) */ #define CpCACHEintr 0 /* interrupt */ #define CpCACHEinvi 5 /* instruction */ #define CpCACHEinvd 6 /* data */ #define CpCACHEinvu 7 /* unified (I+D) */ #define CpCACHEwb 10 /* writeback D */ #define CpCACHEwbu 11 /* writeback U (not 926ejs) */ #define CpCACHEwbi 14 /* writeback D + invalidate */ #define CpCACHEwbui 15 /* writeback U + inval (not 926ejs) */ /* * the 926ejs manual says that we can't use CpCACHEall nor CpCACHEwait * for writeback operations on the 926ejs, except for CpCACHEwb + CpCACHEwait, * which means `drain write buffer'. */ #define CpCACHEall 0 /* entire */ #define CpCACHEse 1 /* single entry */ #define CpCACHEsi 2 /* set/index */ #define CpCACHEtest 3 /* test loop */ #define CpCACHEwait 4 /* wait */ #define CpCACHEdmbarr 5 /* wb: data memory barrier */ /* * CpTLB Secondary (CRm) registers and opcode2 fields. */ #define CpTLBinvi 5 /* instruction */ #define CpTLBinvd 6 /* data */ #define CpTLBinvu 7 /* unified */ #define CpTLBinv 0 /* invalidate all */ #define CpTLBinvse 1 /* invalidate single entry */ /* * CpTESTCFG Secondary (CRm) registers and opcode2 fields; sheeva only. * opcode1 == CpL2 (1). L2 cache operations block the CPU until finished. * Specifically, write-back (clean) blocks until all dirty lines have been * drained from the L2 buffers. */ #define CpTCl2cfg 1 #define CpTCl2flush 9 /* cpu blocks until flush done */ #define CpTCl2waylck 10 #define CpTCl2inv 11 #define CpTCl2perfctl 12 #define CpTCl2perfcnt 13 /* CpTCl2cfg */ #define CpTCl2conf 0 /* CpTCl2conf bits */ #define CpTCldcstream (1<<29) /* D cache streaming switch */ #define CpTCl2wralloc (1<<28) /* cache write allocate */ #define CpTCl2prefdis (1<<24) /* l2 cache prefetch disable */ #define CpTCl2ena (1<<22) /* l2 cache enable */ /* CpTCl2flush & CpTCl2inv */ #define CpTCl2all 0 #define CpTCl2seva 1 #define CpTCl2way 2 #define CpTCl2sepa 3 #define CpTCl2valow 4 #define CpTCl2vahigh 5 /* also triggers flush or inv */ /* CpTCl2flush #define CpTCecccnt 6 /* ecc error count */ #define CpTCeccthr 7 /* ecc error threshold */ /* CpTCl2waylck */ #define CpTCl2waylock 7 /* CpTCl2inv */ #define CpTCl2erraddr 7 /* ecc error address */ /* CpTCl2perfctl */ #define CpTCl2perf0ctl 0 #define CpTCl2perf1ctl 1 /* CpTCl2perfcnt */ #define CpTCl2perf0low 0 #define CpTCl2perf0high 1 #define CpTCl2perf1low 2 #define CpTCl2perf1high 3 /* * MMU page table entries. * Mbo (0x10) bit is implementation-defined and mandatory on some pre-v7 arms. */ #define Mbo 0x10 /* must be 1 on earlier arms */ #define Fault 0x00000000 /* L[12] pte: unmapped */ #define Coarse (Mbo|1) /* L1 */ #define Section (Mbo|2) /* L1 1MB */ #define Fine (Mbo|3) /* L1 */ #define Large 0x00000001u /* L2 64KB */ #define Small 0x00000002u /* L2 4KB */ #define Tiny 0x00000003u /* L2 1KB, deprecated */ #define Buffered 0x00000004u /* L[12]: write-back not -thru */ #define Cached 0x00000008u /* L[12] */ #define Dom0 0 #define Noaccess 0 /* AP, DAC */ #define Krw 1 /* AP */ #define Uro 2 /* AP */ #define Urw 3 /* AP */ #define Client 1 /* DAC */ #define Manager 3 /* DAC */ #define AP(n, v) F((v), ((n)*2)+4, 2) #define L1AP(ap) (AP(3, (ap))) /* in L1, only Sections have AP */ #define L2AP(ap) (AP(3, (ap))|AP(2, (ap))|AP(1, (ap))|AP(0, (ap))) /* pre-armv7 */ #define DAC(n, v) F((v), (n)*2, 2) #define HVECTORS 0xffff0000 /* addr of vectors */