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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2009-03-13 21:44:51 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-03-13 21:44:51 +0000
commit97fb44eb6bc01f4ffed4300e475aa15e44877375 (patch)
tree481ed6efd0babe7185cae04f2fd295426b36411d /drivers/char/agp/amd64-agp.c
parente4707dd3e9d0cb57597b6568a5e51fea5d6fca41 (diff)
parent148854c65ea8046b045672fd49f4333aefaa3ab5 (diff)
Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel
Conflicts: arch/arm/mach-at91/gpio.c
Diffstat (limited to 'drivers/char/agp/amd64-agp.c')
-rw-r--r--drivers/char/agp/amd64-agp.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 52f4361eb6e4..d765afda9c2a 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -271,15 +271,15 @@ static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp,
nb_order = (nb_order >> 1) & 7;
pci_read_config_dword(nb, AMD64_GARTAPERTUREBASE, &nb_base);
nb_aper = nb_base << 25;
- if (agp_aperture_valid(nb_aper, (32*1024*1024)<<nb_order)) {
- return 0;
- }
/* Northbridge seems to contain crap. Try the AGP bridge. */
pci_read_config_word(agp, cap+0x14, &apsize);
- if (apsize == 0xffff)
+ if (apsize == 0xffff) {
+ if (agp_aperture_valid(nb_aper, (32*1024*1024)<<nb_order))
+ return 0;
return -1;
+ }
apsize &= 0xfff;
/* Some BIOS use weird encodings not in the AGPv3 table. */
@@ -301,6 +301,11 @@ static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp,
order = nb_order;
}
+ if (nb_order >= order) {
+ if (agp_aperture_valid(nb_aper, (32*1024*1024)<<nb_order))
+ return 0;
+ }
+
dev_info(&agp->dev, "aperture from AGP @ %Lx size %u MB\n",
aper, 32 << order);
if (order < 0 || !agp_aperture_valid(aper, (32*1024*1024)<<order))