On Fri, Mar 31, 2023, at 12:55, Conor Dooley wrote:
> On Fri, Mar 31, 2023 at 11:37:30AM +0100, Lad, Prabhakar wrote:
>>
>
> Does that actually work? I don't think it does.
> If you try to enable RISCV_ISA_ZICBOM then you won't get
> RISC_DMA_NONCOHERENT turned on. Run menuconfig and disable support for
> Renesas, SiFive and T-Head SoCs & you can replicate.
Right, the circular dependency has to be broken in some form.
> I think one of RISCV_ISA_ZICBOM and RISCV_DMA_NONCOHERENT should just be
> dropped, although I don't know which one to pick!
> Making RISCV_DMA_NONCOHERENT user selectable probably makes the most
> sense.
That sounds good to me.
Arnd
