A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

x86/agp: Fix agp_amd64_init and agp_amd64_cleanup

Browse source 
This fixes the regression introduced by the commit
f405d2c023.

The above commit fixes the following issue:

  http://marc.info/?l=linux-kernel&m=126192729110083&w=2

However, it doesn't work properly when you remove and insert the
agp_amd64 module again.

agp_amd64_init() and agp_amd64_cleanup should be called only
when gart_iommu is not called earlier (that is, the GART IOMMU
is not enabled). We need to use 'gart_iommu_aperture' to see if
GART IOMMU is enabled or not.

Signed-off-by: FUJITA Tomonori <[email protected]>
Cc: [email protected]
Cc: [email protected]
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
FUJITA Tomonori 2010-01-04 16:16:23 +09:00 • committed by Ingo Molnar
commit 42590a7501
2 changed files with 4 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

5
drivers/char/agp/amd64-agp.c
View file

@ -725,12 +725,11 @@ static struct pci_driver agp_amd64_pci_driver = {
int __init agp_amd64_init(void)
{
int err = 0;
static int done = 0;
if (agp_off)
return -EINVAL;
if (done++)
if (gart_iommu_aperture)
return agp_bridges_found ? 0 : -ENODEV;
err = pci_register_driver(&agp_amd64_pci_driver);
@ -771,6 +770,8 @@ int __init agp_amd64_init(void)
static void __exit agp_amd64_cleanup(void)
{
if (gart_iommu_aperture)
return;
if (aperture_resource)
release_resource(aperture_resource);
pci_unregister_driver(&agp_amd64_pci_driver);