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Commit 310aa950 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/amd: Remove obsolete comment 



The AMD IOMMU driver only uses the page-sizes it gets from
IOMMU core and uses the appropriate page-size. So this
comment is not necessary.

Signed-off-by: default avatarJoerg Roedel <joro@8bytes.org>
parent 954e3dd8

drivers/iommu/amd_iommu.c

+0 −10
Original line number Diff line number Diff line
@@ -57,16 +57,6 @@ 
 * physically contiguous memory regions it is mapping into page sizes

 * that we support.

 *

 * Traditionally the IOMMU core just handed us the mappings directly,

 * after making sure the size is an order of a 4KiB page and that the

 * mapping has natural alignment.

 *

 * To retain this behavior, we currently advertise that we support

 * all page sizes that are an order of 4KiB.

 *

 * If at some point we'd like to utilize the IOMMU core's new behavior,

 * we could change this to advertise the real page sizes we support.

 *

 * 512GB Pages are not supported due to a hardware bug

 */

#define AMD_IOMMU_PGSIZES	((~0xFFFUL) & ~(2ULL << 38))