Commit 28d6ee41 authored by Andi Kleen's avatar Andi Kleen Committed by Ingo Molnar

x86: switch pci-gart over to using set_memory_np() instead of clear_kernel_mapping()

pci-gart needs to unmap the IOMMU aperture to prevent cache corruptions.

Switch this over to using set_memory_np() instead of clear_kernel_mapping().
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 64f351d1
...@@ -731,7 +731,8 @@ void __init gart_iommu_init(void) ...@@ -731,7 +731,8 @@ void __init gart_iommu_init(void)
* the backing memory. The GART address is only used by PCI * the backing memory. The GART address is only used by PCI
* devices. * devices.
*/ */
clear_kernel_mapping((unsigned long)__va(iommu_bus_base), iommu_size); set_memory_np((unsigned long)__va(iommu_bus_base),
iommu_size >> PAGE_SHIFT);
/* /*
* Try to workaround a bug (thanks to BenH) * Try to workaround a bug (thanks to BenH)
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment