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SubjectRe: [PATCH] riscv: kbuild: drop CONFIG_RISCV_ISA_C
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On 8/12/19 11:03 AM, Christoph Hellwig wrote:
> On Thu, Aug 08, 2019 at 02:18:53PM +0200, Charles Papon wrote:
>> Please do not drop it.
>>
>> Compressed instruction extension has some specific overhead in small
>> RISC-V FPGA softcore, especialy in the ones which can't implement the
>> register file read in a asynchronous manner because of the FPGA
>> technology.
>> What are reasons to enforce RVC ?
>
> Because it it the unix platform baseline as stated in the patch.
>

The same argument could be made for an FPU or MMU, yet there are options
to disable those.

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