Commit 771a37ff authored Jun 11, 2013 by bob picco Committed by David S. Miller Jun 19, 2013

sparc64 address-congruence property



The Machine Description (MD) property "address-congruence-offset" is
optional. According to the MD specification the value is assumed 0UL when
not present. This caused early boot failure on T5.

Signed-off-by: Bob Picco <bob.picco@oracle.com>
CC: sparclinux@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

parent d72ee6be

arch/sparc/mm/init_64.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -1098,7 +1098,14 @@ static int __init grab_mblocks(struct mdesc_handle *md)
		m->size = *val;
		val = mdesc_get_property(md, node,
		"address-congruence-offset", NULL);

		/* The address-congruence-offset property is optional.
		* Explicity zero it be identifty this.
		*/
		if (val)
		m->offset = *val;
		else
		m->offset = 0UL;

		numadbg("MBLOCK[%d]: base[%llx] size[%llx] offset[%llx]\n",
		count - 1, m->base, m->size, m->offset);