[PATCH] iommu: PGTABLE_LPAE is also for RISCV

[Alexandre Ghiti]

Hi Randy,


On 3/30/23 18:49, Randy Dunlap wrote:
>
> On 3/30/23 09:34, Robin Murphy wrote:
>> On 2023-03-30 07:01, Randy Dunlap wrote:
>>> On riscv64, linux-next-20233030 (and for several days earlier),
>>> there is a kconfig warning:
>>>
>>> WARNING: unmet direct dependencies detected for IOMMU_IO_PGTABLE_LPAE
>>>     Depends on [n]: IOMMU_SUPPORT [=y] && (ARM || ARM64 || COMPILE_TEST [=n]) && !GENERIC_ATOMIC64 [=n]
>>>     Selected by [y]:
>>>     - IPMMU_VMSA [=y] && IOMMU_SUPPORT [=y] && (ARCH_RENESAS [=y] || COMPILE_TEST [=n]) && !GENERIC_ATOMIC64 [=n]
>>>
>>> and build errors:
>>>
>>> riscv64-linux-ld: drivers/iommu/io-pgtable-arm.o: in function `.L140':
>>> io-pgtable-arm.c:(.init.text+0x1e8): undefined reference to `alloc_io_pgtable_ops'
>>> riscv64-linux-ld: drivers/iommu/io-pgtable-arm.o: in function `.L168':
>>> io-pgtable-arm.c:(.init.text+0xab0): undefined reference to `free_io_pgtable_ops'
>>> riscv64-linux-ld: drivers/iommu/ipmmu-vmsa.o: in function `.L140':
>>> ipmmu-vmsa.c:(.text+0xbc4): undefined reference to `free_io_pgtable_ops'
>>> riscv64-linux-ld: drivers/iommu/ipmmu-vmsa.o: in function `.L0 ':
>>> ipmmu-vmsa.c:(.text+0x145e): undefined reference to `alloc_io_pgtable_ops'
>>>
>>> Add RISCV as an allowed ARCH dependency to fix these problems.
>>>
>>> Fixes: d286a58bc8f4 ("iommu: Tidy up io-pgtable dependencies")
>> BTW that doesn't look like the right fix target - this presumably dates back as far as when ARCH_RENESAS was added to RISCV, such that it was possible to start selecting IPMMU_VMSA without COMPILE_TEST?
> OK, I can go with that. Thanks for your help.
>

Any updates on this fix?


Thanks,


Alex