Commit Graph

4 Commits

Author SHA1 Message Date
Janne Grunau
9d7b6d117d dt-bindings: iommu: apple,sart: Add apple,t6020-sart compatible
"apple,t6020-sart" as found in Apple's M2 Pro/Max/Ultra SoCs is
compatible with SART3 used in t6000. Add its per-SoC compatible to allow
a distinction should it become necessary.

Reviewed-by: Neal Gompa <neal@gompa.dev>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Janne Grunau <j@jannau.net>
2025-09-14 21:50:01 +02:00
Nick Chan
940ce882f7 dt-bindings: iommu: apple,sart: Add Apple A11
Add apple,t8015-sart for SARTv0 found on the Apple A11 SoC, which
uses a different MMIO layout and is thus incompatible with the
previously described versions

Reviewed-by: Sven Peter <sven@kernel.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Nick Chan <towinchenmi@gmail.com>
Link: https://lore.kernel.org/r/20250821-t8015-nvme-v3-3-14a4178adf68@gmail.com
[sven: adjusted commit message]
Signed-off-by: Sven Peter <sven@kernel.org>
2025-09-06 08:01:54 +00:00
Janne Grunau
667b44ee3a dt-bindings: iommu: apple,sart: Add apple,t8112-sart compatible string
"apple,t8112-sart" as found on the Apple M2 SoC appears to be SART3 as
well. To allow for later discovered incompatibilities use
'"apple,t8112-sart", "apple,t6000-sart"' as compatible string.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: Hector Martin <marcan@marcan.st>
2023-03-28 19:39:12 +09:00
Sven Peter
a12d521f4a dt-bindings: iommu: Add Apple SART DMA address filter
Apple SoCs such as the M1 come with a simple DMA address filter called
SART. Unlike a real IOMMU no pagetables can be configured but instead
DMA transactions can be allowed for up to 16 paddr regions. The consumer
also needs special support since not all DMA allocations have to be
added to this filter.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
2022-05-01 16:55:07 +02:00