ref: 249dc0489c7b24371e1f829e9c849fa7464f6c0c
dir: /os/cerf250/mem.h/
/* * Memory and machine-specific definitions. Used in C and assembler. */ /* * Sizes */ #define BI2BY 8 /* bits per byte */ #define BI2WD 32 /* bits per word */ #define BY2WD 4 /* bytes per word */ #define BY2V 8 /* bytes per double word */ #define BY2PG 4096 /* bytes per page */ #define WD2PG (BY2PG/BY2WD) /* words per page */ #define PGSHIFT 12 /* log(BY2PG) */ #define ROUND(s, sz) (((s)+(sz-1))&~(sz-1)) #define PGROUND(s) ROUND(s, BY2PG) #define BIT(n) (1<<n) #define BITS(a,b) ((1<<(b+1))-(1<<a)) #define MAXMACH 1 /* max # cpus system can run */ /* * Time */ #define HZ (100) /* clock frequency */ #define MS2HZ (1000/HZ) /* millisec per clock tick */ #define TK2SEC(t) ((t)/HZ) /* ticks to seconds */ #define MS2TK(t) ((t)/MS2HZ) /* milliseconds to ticks */ /* * More accurate time */ #define CLOCKFREQ 3686400 #define MS2TMR(t) ((ulong)(((uvlong)(t)*CLOCKFREQ)/1000)) #define US2TMR(t) ((ulong)(((uvlong)(t)*CLOCKFREQ)/1000000)) /* * Address spaces * nearly everything maps 1-1 with physical addresses * 0 to 1Mb is not mapped * cache strategy varies as needed (see mmu.c) */ #define KZERO 0xA0000000 #define MACHADDR (KZERO+0x00001000) #define KTTB (KZERO+0x00004000) /*#define KTZERO (KZERO+0x00008010)*/ #define KTZERO (KZERO+0x200020) /* temporary */ #define KSTACK 8192 /* Size of kernel stack */ #define FLASHMEM 0x50000000 /* map flash at phys 0 to otherwise unused virtual space */ #define FLUSHMEM 0xE0000000 /* virtual address reserved for cache flushing */ #define DCFADDR FLUSHMEM /* cached and buffered for cache writeback */ #define MCFADDR (FLUSHMEM+(1<<20)) /* cached and unbuffered for minicache writeback */ #define UCDRAMZERO 0xA8000000 /* base of memory doubly-mapped as uncached */ #define AIVECADDR 0xFFFF0000 /* alternative interrupt vector address (other is 0) */ /* * Physical addresses */ #define PHYSFLASH0 0x00000000 /* flash (chip select 0) */ #define PHYSCS1 0x04000000 /* static chip select 1 */ #define PHYSCS2 0x08000000 /* static chip select 2 */ #define PHYSCS3 0x0C000000 /* static chip select 3 */ #define PHYSCS4 0x10000000 /* static chip select 4 */ #define PHYSCS5 0x18000000 /* static chip select 5 */ #define PHYSPCMCIA0 0x20000000 /* PCMCIA socket 0 space */ #define PHYSPCMCIA1 0x30000000 /* PCMCIA socket 1 space */ #define PCMCIASIZE 0x10000000 /* they're both huge */ #define PHYSREGS 0x40000000 /* memory mapped registers */ #define PHYSDMA 0x40000000 /* DMA controller */ #define PHYSUART0 0x40100000 /* full function UART*/ #define PHYSUARTBT 0x40200000 /* bluetooth UART */ #define PHYSI2C 0x40301680 #define PHYSI2S 0x40400000 /* serial audio */ #define PHYSAC97 0x40500000 /* AC97/PCM/modem */ #define PHYSUDC 0x40600000 /* USB client */ #define PHYSUART1 0x40700000 /* standard UART */ #define PHYSICP 0x40800000 #define PHYSRTC 0x40900000 /* real-time clock */ #define PHYSOSTMR 0x40A00000 /* timers */ #define PHYSPWM0 0x40B00000 /* pulse width modulator */ #define PHYSPWM1 0x40C00000 #define PHYSINTR 0x40D00000 /* interrupt controller */ #define PHYSGPIO 0x40E00000 /* pins */ #define PHYSPOWER 0x40F00000 /* power management registers */ #define PHYSSSP 0x41000000 #define PHYSMMC 0x41100000 #define PHYSCORE 0x41300000 /* clocks manager */ #define PHYSNETSSP 0x41400000 /* network SSP */ #define PHYSUART2 0x41600000 /* hardware UART */ #define PHYSLCD 0x44000000 /* LCD controller */ #define PHYSMEMCFG 0x48000000 /* memory configuration */ #define PHYSMEM0 0xA0000000 /* * Memory Interface Control Registers */ #define MDCNFG (PHYSMEMCFG) /* memory controller configuration */ #define MDREFR (PHYSMEMCFG+4) #define MSC0 (MDREFR+4) #define MSC1 (MSC0+4) #define MSC2 (MSC1+4) #define MSCx(RRR, RDN, RDF, RBW, RT) ((((RRR)&0x7)<<13)|(((RDN)&0x1F)<<8)|(((RDF)&0x1F)<<3)|(((RBW)&1)<<2)|((RT)&3)) #define CACHELINELOG 5 #define CACHELINESZ (1<<CACHELINELOG) #define CACHESIZE (32*1024) /* I & D caches are the same size */ #define MINICACHESIZE (2*1024) /* * PSR */ #define PsrMusr 0x10 /* mode */ #define PsrMfiq 0x11 #define PsrMirq 0x12 #define PsrMsvc 0x13 #define PsrMabt 0x17 #define PsrMund 0x1B #define PsrMsys 0x1F #define PsrMask 0x1F #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 */ /* * Internal MMU coprocessor registers */ #define CpCPUID 0 /* R: opcode_2 is 0*/ #define CpCacheID 0 /* R: opcode_2 is 1 */ #define CpControl 1 /* R/W: control (opcode_2 is 0) */ #define CpAuxctl 1 /* R/W: auxiliary control (opcode_2 is 1) */ #define CpTTB 2 /* R/W: translation table base */ #define CpDAC 3 /* R/W: domain access control */ #define CpFSR 5 /* R/W: fault status */ #define CpFAR 6 /* R/W: fault address */ #define CpCacheCtl 7 /* W: */ #define CpTLBops 8 /* W: TLB operations */ #define CpCacheLk 9 /* W: cache lock down */ #define CpPID 13 /* R/W: Process ID Virtual Mapping */ #define CpDebug 14 /* R/W: debug registers */ #define CpAccess 15 /* R/W: Coprocessor Access */ /* * Coprocessors */ #define CpMMU 15 #define CpPWR 14 /* * CpControl bits */ #define CpCmmu (1<<0) /* M: MMU enable */ #define CpCalign (1<<1) /* A: alignment fault enable */ #define CpCDcache (1<<2) /* C: data cache on */ #define CpCwpd (15<<3) /* W, P, D, must be one */ #define CpCbe (1<<7) /* B: big-endian operation */ #define CpCsystem (1<<8) /* S: system permission */ #define CpCrom (1<<9) /* R: ROM permission */ #define CpCbranch (1<<11) /* Z: branch target buffer enable */ #define CpCIcache (1<<12) /* I: Instruction Cache on */ #define CpCaltivec (1<<13) /* V: exception vector relocation */ /* * CpAux bits */ #define CpWBdisable (1<<1) /* globally disable write buffer coalescing */ #define CpMDrwa (1<<4) /* mini data cache r/w allocate */ #define CpMDwt (1<<5) /* mini data cache write through */