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Diffstat (limited to 'drivers/char/agp/amd64-agp.c')
-rw-r--r--drivers/char/agp/amd64-agp.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 2fb2e6c..fd50ead 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -728,6 +728,7 @@ int __init agp_amd64_init(void)
if (agp_off)
return -EINVAL;
+
err = pci_register_driver(&agp_amd64_pci_driver);
if (err < 0)
return err;
@@ -764,19 +765,28 @@ int __init agp_amd64_init(void)
return err;
}
+static int __init agp_amd64_mod_init(void)
+{
+#ifndef MODULE
+ if (gart_iommu_aperture)
+ return agp_bridges_found ? 0 : -ENODEV;
+#endif
+ return agp_amd64_init();
+}
+
static void __exit agp_amd64_cleanup(void)
{
+#ifndef MODULE
+ if (gart_iommu_aperture)
+ return;
+#endif
if (aperture_resource)
release_resource(aperture_resource);
pci_unregister_driver(&agp_amd64_pci_driver);
}
-/* On AMD64 the PCI driver needs to initialize this driver early
- for the IOMMU, so it has to be called via a backdoor. */
-#ifndef CONFIG_GART_IOMMU
-module_init(agp_amd64_init);
+module_init(agp_amd64_mod_init);
module_exit(agp_amd64_cleanup);
-#endif
MODULE_AUTHOR("Dave Jones <davej@redhat.com>, Andi Kleen");
module_param(agp_try_unsupported, bool, 0);
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