diff options
| author | Sven Peter <sven@svenpeter.dev> | 2021-08-03 15:16:49 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-08-12 14:15:02 +0300 |
| commit | 892384cd998a17960dff6ebefc27375f63364111 (patch) | |
| tree | fedcceb1b12b1edccd407720c93f12709817cdb9 /include/linux/io-pgtable.h | |
| parent | 9eec3f9b9e243b554b5804bbdb58ea61068adbda (diff) | |
| download | linux-892384cd998a17960dff6ebefc27375f63364111.tar.xz | |
iommu/io-pgtable: Add DART pagetable format
Apple's DART iommu uses a pagetable format that shares some
similarities with the ones already implemented by io-pgtable.c.
Add a new format variant to support the required differences
so that we don't have to duplicate the pagetable handling code.
Reviewed-by: Alexander Graf <graf@amazon.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20210803121651.61594-2-sven@svenpeter.dev
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/io-pgtable.h')
| -rw-r--r-- | include/linux/io-pgtable.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h index c43f3b899d2a..a738483fb4da 100644 --- a/include/linux/io-pgtable.h +++ b/include/linux/io-pgtable.h @@ -16,6 +16,7 @@ enum io_pgtable_fmt { ARM_V7S, ARM_MALI_LPAE, AMD_IOMMU_V1, + APPLE_DART, IO_PGTABLE_NUM_FMTS, }; @@ -136,6 +137,11 @@ struct io_pgtable_cfg { u64 transtab; u64 memattr; } arm_mali_lpae_cfg; + + struct { + u64 ttbr[4]; + u32 n_ttbrs; + } apple_dart_cfg; }; }; @@ -254,5 +260,6 @@ 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_apple_dart_init_fns; #endif /* __IO_PGTABLE_H */ |