deal with 64-bit bars the way we're handling them now.

Reference: /n/atom/patch/applied/pci164bitbar
Date: Tue Jan 14 16:59:49 CET 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/src/cmd/pci/dat.h	Tue Jan 14 16:59:30 2014
+++ /sys/src/cmd/pci/dat.h	Tue Jan 14 16:59:30 2014
@@ -47,7 +47,7 @@
 };
 
 struct Bar {
-	uintptr	bar;
+	u64int	bar;		/* wrong */
 	uint	size;
 };
 
--- /sys/src/cmd/pci/pci.c	Tue Jan 14 16:59:31 2014
+++ /sys/src/cmd/pci/pci.c	Tue Jan 14 16:59:31 2014
@@ -455,7 +455,7 @@
 	for(i = 0; i < nelem(p->mem); i++){
 		if(b[i].size == 0)
 			continue;
-		Bprint(&o, " %d:%.8p %d", i, b[i].bar, b[i].size);
+		Bprint(&o, " %d:%.8llux %d", i, b[i].bar, b[i].size);
 	}
 	Bprint(&o, "\n");
 }
--- /sys/src/cmd/pci/pciifc.c	Tue Jan 14 16:59:31 2014
+++ /sys/src/cmd/pci/pciifc.c	Tue Jan 14 16:59:31 2014
@@ -224,11 +224,11 @@
 		b = p->mem + floor;
 		u = strtoull(r+1, &r, 16);
 		if(u != b->bar)
-			print("%T: mismatched bar %d %.8p %.8llux\n", p->tbdf, floor, b->bar, u);
+			fprint(2, "%T: mismatched bar %d %.8llux %.8llux\n", p->tbdf, floor, b->bar, u);
 		i++;
 		u = strtoull(f[i], &r, 0);
 		if(u > 256*1024*1024)
-			print("%T: bogus bar size %llud\n", p->tbdf, u);
+			fprint(2, "%T: bogus bar size %llud\n", p->tbdf, u);
 		b->size = u;
 	}
 	close(fd);
@@ -262,6 +262,11 @@
 		rno = PciBAR0;
 		for(i = 0; i < nelem(p->mem); i++) {
 			p->mem[i].bar = pcicfgr32(p, rno);
+			if(p->mem[i].bar & 2<<1){
+				rno += 4;
+				p->mem[i].bar |= (u64int)pcicfgr32(p, rno)<<32;
+				i++;
+			}
 		//	p->mem[i].size = pcibarsize(p, rno);
 			rno += 4;
 		}