2000/0612/pc/vgas3.c (diff list | history)

2000/0611/sys/src/9/pc/vgas3.c:64,71 – 2000/0612/sys/src/9/pc/vgas3.c:64,72 (short | long | prev | next)
1997/1101		static ulong s3linear(VGAscr* scr, int* size, int* align) {
1999/1005		ulong aperture, oaperture;
2000/0611		int i, osize, oapsize, wasupamem;
2000/0612		char *mmioname; ulong aperture, oaperture, mmiobase, mmiosize; int i, id, j, osize, oapsize, wasupamem;
1997/1101		Pcidev *p;
1999/0716		Physseg seg;
1997/1101
2000/0611/sys/src/9/pc/vgas3.c:74,79 – 2000/0612/sys/src/9/pc/vgas3.c:75,83
1997/1101		oapsize = scr->apsize; wasupamem = scr->isupamem;
2000/0612		mmiosize = 0; mmiobase = 0; mmioname = nil;
1997/1101		if(p = pcimatch(nil, 0x5333, 0)){
2000/0611		for(i=0; i<nelem(p->mem); i++){ if(p->mem[i].size >= *size
2000/0611/sys/src/9/pc/vgas3.c:86,91 – 2000/0612/sys/src/9/pc/vgas3.c:90,122
2000/0611		} aperture = p->mem[i].bar & ~0x0F; *size = p->mem[i].size;
2000/0612		id = (vgaxi(Crtx, 0x30)<<8)|vgaxi(Crtx, 0x2E); if(id == 0xE122){ /* find Savage4 mmio */ /* * We could assume that the MMIO registers * will be in the screen segment and just use * that, but PCI software is allowed to move them * if it feels like it, so we look for an aperture of * the right size; only the first 512k actually means * anything. The S3 engineers overestimated how * much space they would need in the first design. */ for(j=0; j<nelem(p->mem); j++){ if(i == j) continue; if(p->mem[j].size==512*1024 || p->mem[j].size==16*1024*1024){ mmiobase = p->mem[j].bar & ~0x0F; mmiosize = 512*1024; mmioname = "savage4mmio"; break; } } if(mmiosize == 0){ print("savage4: mmio not found\n"); return 0; } }
2000/0611		}else
1997/1101		aperture = 0;
2000/0611/sys/src/9/pc/vgas3.c:111,116 – 2000/0612/sys/src/9/pc/vgas3.c:142,156
1999/0716		seg.size = osize; addphysseg(&seg);
1999/1005
2000/0612		if(mmiosize){ memset(&seg, 0, sizeof(seg)); seg.attr = SG_PHYSICAL; seg.name = smalloc(NAMELEN); snprint(seg.name, NAMELEN, mmioname); seg.pa = mmiobase; seg.size = mmiosize; addphysseg(&seg); }
1997/1101		return aperture; }
2000/0611/sys/src/9/pc/vgas3.c:166,172 – 2000/0612/sys/src/9/pc/vgas3.c:206,212
1994/0803		* Must be on a 1024-byte boundary. */
1997/1101		storage = (scr->gscreen->width*BY2WD*scr->gscreen->r.max.y+1023)/1024;
1994/0803		vgaxo(Crtx, 0x4C, (storage>>8) & 0x0F);
2000/0612		vgaxo(Crtx, 0x4C, storage>>8);
1994/0803		vgaxo(Crtx, 0x4D, storage & 0xFF); storage *= 1024;
1997/1101		scr->storage = storage;
2000/0611/sys/src/9/pc/vgas3.c:325,330 – 2000/0612/sys/src/9/pc/vgas3.c:365,373
1999/1005		ulong linear; ulong fifo; ulong idle;
2000/0612		ulong lineartimeout; ulong fifotimeout; ulong idletimeout;
1999/1005		} waitcount; static void
2000/0611/sys/src/9/pc/vgas3.c:352,357 – 2000/0612/sys/src/9/pc/vgas3.c:395,402
1999/1005		x = 0; while((mmio[FifoStat]&mask) != val && x++ < Maxloop) waitcount.linear++;
2000/0612		if(x >= Maxloop) waitcount.lineartimeout++;
1999/1005		} static void
2000/0611/sys/src/9/pc/vgas3.c:365,370 – 2000/0612/sys/src/9/pc/vgas3.c:410,417
1999/1005		x = 0; while((mmio[SubStat]&0x1F00) < ((entries+2)<<8) && x++ < Maxloop) waitcount.fifo++;
2000/0612		if(x >= Maxloop) waitcount.fifotimeout++;
1999/1005		} static void
2000/0611/sys/src/9/pc/vgas3.c:377,382 – 2000/0612/sys/src/9/pc/vgas3.c:424,431
1999/1005		x = 0; while((mmio[SubStat]&0x3F00) != 0x3000 && x++ < Maxloop) waitcount.idle++;
2000/0612		if(x >= Maxloop) waitcount.idletimeout++;
1999/1005		} static int