Author: marius
Date: Wed Jun 19 15:12:10 2013
New Revision: 251994
URL: http://svnweb.freebsd.org/changeset/base/251994
Log:
MFC: r238172 (partial)
Don't use Maxmem when the amount of memory is meant. Use realmem instead.
Maxmem is not only a MD variable, it represents the highest physical memory
address in use. On systems where memory is sparsely layed-out the highest
memory address and the amount of memory are not interchangeable. Scaling the
AGP aperture based on the actual amount of memory (= realmem) rather than
the available memory (= physmem) makes sure there's consistent behaviour
across architectures.
Modified:
stable/9/sys/dev/agp/agp.c
Directory Properties:
stable/9/sys/ (props changed)
stable/9/sys/dev/ (props changed)
Modified: stable/9/sys/dev/agp/agp.c
==============================================================================
--- stable/9/sys/dev/agp/agp.c Wed Jun 19 13:37:29 2013 (r251993)
+++ stable/9/sys/dev/agp/agp.c Wed Jun 19 15:12:10 2013 (r251994)
@@ -56,7 +56,6 @@ __FBSDID("$FreeBSD$");
#include <vm/vm_pageout.h>
#include <vm/pmap.h>
-#include <machine/md_var.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
@@ -235,7 +234,7 @@ agp_generic_attach(device_t dev)
* Work out an upper bound for agp memory allocation. This
* uses a heurisitc table from the Linux driver.
*/
- memsize = ptoa(Maxmem) >> 20;
+ memsize = ptoa(realmem) >> 20;
for (i = 0; i < agp_max_size; i++) {
if (memsize <= agp_max[i][0])
break;
_______________________________________________
svn-src-stable-9@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-stable-9
To unsubscribe, send any mail to "svn-src-stable-9-unsubscr...@freebsd.org"
