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| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2020-12-15 08:36:54 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-01-28 16:51:17 +0100 |
| commit | c9b258c6be09283663c6851725b322568d867c0b (patch) | |
| tree | aaf748c5bcf1bbd94ec61b27b067f4c5181e9e66 /drivers/iommu/amd/iommu.c | |
| parent | iommu/amd: Re-define amd_iommu_domain_encode_pgtable as inline (diff) | |
| download | linux-c9b258c6be09283663c6851725b322568d867c0b.tar.xz linux-c9b258c6be09283663c6851725b322568d867c0b.zip | |
iommu/amd: Prepare for generic IO page table framework
Add initial hook up code to implement generic IO page table framework.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20201215073705.123786-3-suravee.suthikulpanit@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/iommu.c')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 3485f8b60d7a..18d8c97f681e 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -57,16 +57,6 @@ #define HT_RANGE_START (0xfd00000000ULL) #define HT_RANGE_END (0xffffffffffULL) -/* - * This bitmap is used to advertise the page sizes our hardware support - * to the IOMMU core, which will then use this information to split - * physically contiguous memory regions it is mapping into page sizes - * that we support. - * - * 512GB Pages are not supported due to a hardware bug - */ -#define AMD_IOMMU_PGSIZES ((~0xFFFUL) & ~(2ULL << 38)) - #define DEFAULT_PGTABLE_LEVEL PAGE_MODE_3_LEVEL static DEFINE_SPINLOCK(pd_bitmap_lock); |