Use uintmax_t (typedef'd to rman_res_t type) for rman ranges.

On some architectures, u_long isn't large enough for resource definitions.
Particularly, powerpc and arm allow 36-bit (or larger) physical addresses, but
type `long' is only 32-bit.  This extends rman's resources to uintmax_t.  With
this change, any resource can feasibly be placed anywhere in physical memory
(within the constraints of the driver).

Why uintmax_t and not something machine dependent, or uint64_t?  Though it's
possible for uintmax_t to grow, it's highly unlikely it will become 128-bit on
32-bit architectures.  64-bit architectures should have plenty of RAM to absorb
the increase on resource sizes if and when this occurs, and the number of
resources on memory-constrained systems should be sufficiently small as to not
pose a drastic overhead.  That being said, uintmax_t was chosen for source
clarity.  If it's specified as uint64_t, all printf()-like calls would either
need casts to uintmax_t, or be littered with PRI*64 macros.  Casts to uintmax_t
aren't horrible, but it would also bake into the API for
resource_list_print_type() either a hidden assumption that entries get cast to
uintmax_t for printing, or these calls would need the PRI*64 macros.  Since
source code is meant to be read more often than written, I chose the clearest
path of simply using uintmax_t.

Tested on a PowerPC p5020-based board, which places all device resources in
0xfxxxxxxxx, and has 8GB RAM.
Regression tested on qemu-system-i386
Regression tested on qemu-system-mips (malta profile)

Tested PAE and devinfo on virtualbox (live CD)

Special thanks to bz for his testing on ARM.

Reviewed By: bz, jhb (previous)
Relnotes:	Yes
Sponsored by:	Alex Perez/Inertial Computing
Differential Revision: https://reviews.freebsd.org/D4544

1 files changed, 4 insertions, 4 deletions

diff --git a/sys/powerpc/mpc85xx/lbc.c b/sys/powerpc/mpc85xx/lbc.c
index a94a841..37e3ed0 100644
--- a/sys/powerpc/mpc85xx/lbc.c
+++ b/sys/powerpc/mpc85xx/lbc.c
@@ -718,8 +718,8 @@ lbc_alloc_resource(device_t bus, device_t child, int type, int *rid,
 
 	res = rman_reserve_resource(rm, start, end, count, flags, child);
 	if (res == NULL) {
-		device_printf(bus, "failed to reserve resource %#lx - %#lx "
-		    "(%#lx)\n", start, end, count);
+		device_printf(bus, "failed to reserve resource %#jx - %#jx "
+		    "(%#jx)\n", start, end, count);
 		return (NULL);
 	}
 
@@ -749,8 +749,8 @@ lbc_print_child(device_t dev, device_t child)
 
 	rv = 0;
 	rv += bus_print_child_header(dev, child);
-	rv += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx");
-	rv += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld");
+	rv += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#jx");
+	rv += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%jd");
 	rv += bus_print_child_footer(dev, child);
 
 	return (rv);