kybaaz/linux-xiaomi-chiron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

iommu/amd: Initial support for AMD IOMMU v2 page table

Browse source 
Introduce IO page table framework support for AMD IOMMU v2 page table.
This patch implements 4 level page table within iommu amd driver and
supports 4K/2M/1G page sizes.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20220825063939.8360-7-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Vasant Hegde 2022-08-25 06:39:36 +00:00 • committed by Joerg Roedel
parent be1af02b27
commit aaac38f614
5 changed files with 423 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
include/linux/io-pgtable.h
View file

@ -16,6 +16,7 @@ enum io_pgtable_fmt {
ARM_V7S,
ARM_MALI_LPAE,
AMD_IOMMU_V1,
AMD_IOMMU_V2,
APPLE_DART,
IO_PGTABLE_NUM_FMTS,
};
@ -260,6 +261,7 @@ extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s2_init_fns;
extern struct io_pgtable_init_fns io_pgtable_arm_v7s_init_fns;
extern struct io_pgtable_init_fns io_pgtable_arm_mali_lpae_init_fns;
extern struct io_pgtable_init_fns io_pgtable_amd_iommu_v1_init_fns;
extern struct io_pgtable_init_fns io_pgtable_amd_iommu_v2_init_fns;
extern struct io_pgtable_init_fns io_pgtable_apple_dart_init_fns;
#endif /* __IO_PGTABLE_H */