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iommu/arm-smmu-v3: Reorganize struct arm_smmu_ctx_desc_cfg

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The members here are being used for both the linear and the 2 level case,
with the meaning of each item slightly different in the two cases.

Split it into a clean union where both cases have their own struct with
their own logical names and correct types.

Adjust all the users to detect linear/2lvl and use the right sub structure
and types consistently.

Remove CTXDESC_CD_DWORDS by changing the last places to use
sizeof(struct arm_smmu_cd).

Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/8-v4-6416877274e1+1af-smmuv3_tidy_jgg@nvidia.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Jason Gunthorpe 2024-09-06 12:47:55 -03:00 • committed by Will Deacon
commit e3b1be2e73
2 changed files with 72 additions and 67 deletions
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