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| author | Sven Peter <sven@svenpeter.dev> | 2022-09-16 11:41:51 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-09-26 13:49:40 +0200 |
| commit | dc09fe1c5edd9c27a52cb6dc5a7bb4452d45c71c (patch) | |
| tree | 07a0ab89382e6d199cf9cc71ad944332602aa98c /include/linux/io-pgtable.h | |
| parent | d8fe365a4f1c1aa5e2da3e41f50a08c9bd8d6112 (diff) | |
| download | linux-dc09fe1c5edd9c27a52cb6dc5a7bb4452d45c71c.tar.gz linux-dc09fe1c5edd9c27a52cb6dc5a7bb4452d45c71c.tar.bz2 linux-dc09fe1c5edd9c27a52cb6dc5a7bb4452d45c71c.zip | |
iommu/io-pgtable-dart: Add DART PTE support for t6000
The DARTs present in the M1 Pro/Max/Ultra SoC use a diffent PTE format.
They support a 42bit physical address space by shifting the paddr and
extending its mask inside the PTE.
They also come with mandatory sub-page protection now which we just
configure to always allow access to the entire page. This feature is
already present but optional on the previous DARTs which allows to
unconditionally configure it.
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Co-developed-by: Janne Grunau <j@jannau.net>
Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Hector Martin <marcan@marcan.st>
Link: https://lore.kernel.org/r/20220916094152.87137-5-j@jannau.net
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/io-pgtable.h')
| -rw-r--r-- | include/linux/io-pgtable.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h index ca98aeadcc80..b768937382cd 100644 --- a/include/linux/io-pgtable.h +++ b/include/linux/io-pgtable.h @@ -17,6 +17,7 @@ enum io_pgtable_fmt { ARM_MALI_LPAE, AMD_IOMMU_V1, APPLE_DART, + APPLE_DART2, IO_PGTABLE_NUM_FMTS, }; |