[RFC PATCH 0/4] Proof of concept for rv32 svpbmt support

Christoph Hellwig hch at infradead.org
Tue Jul 5 10:22:30 PDT 2022

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On Tue, Jul 05, 2022 at 06:05:19AM -0400, guoren at kernel.org wrote:
> From: Guo Ren <guoren at linux.alibaba.com>
> 
> Make rv32 support svpbmt & napot by reducing the PPN witdth (sv32p34 ->
> sv32p31).

Yeah, the lack of rv32 in svpbmt was a very odd choice, given that
non-coherent DMA is most common in crappy low end devices.

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