1999/0424/alphapc/arch164.c (diff list | history)

1999/0423/sys/src/9/alphapc/arch164.c:27,32 – 1999/0424/sys/src/9/alphapc/arch164.c:27,52 (short | long | prev | next)
1999/0415		return 0; /* bug! */ }
1999/0424		static uvlong* sgmap; static void sginit(void) { ulong pa; uvlong *pte; sgmap = xspanalloc(BY2PG, BY2PG, 0); memset(sgmap, 0, BY2PG); pte = sgmap; for(pa = 0; pa < 8*1024*1024; pa += BY2PG) *pte++ = ((pa>>PGSHIFT)<<1)|1; wind[0x400/4] = ISAWINDOW|2; wind[0x440/4] = 0x00700000; wind[0x480/4] = PADDR(sgmap); }
1999/0415		static void * kmapio(ulong space, ulong offset, int size) {
1999/0423/sys/src/9/alphapc/arch164.c:54,70 – 1999/0424/sys/src/9/alphapc/arch164.c:74,91
1999/0415		} coresave[0] = core[0x140/4];
1999/0423		#ifdef notdef
1999/0424		/* disable windows */ wind[0x400/4] = 0; wind[0x500/4] = 0; wind[0x600/4] = 0; wind[0x700/4] = 0;
1999/0423		/* direct map bottom 1G PCI target space to KZERO in window 1 */ wind[0x500/4] = PCIWINDOW|1; wind[0x540/4] = 0x3ff00000;
1999/0415		wind[0x580/4] = 0; /* disable other windows */ wind[0x400/4] = 0; wind[0x600/4] = 0; wind[0x700/4] = 0;
1999/0423		#endif /* notdef */
1999/0424		sginit();
1999/0415		/* clear error state */ core[0x8200/4] = 0x7ff;