Messages in this thread | | | Date | Thu, 16 Jun 2022 14:11:57 +0200 | From | Christoph Hellwig <> | Subject | Re: [PATCH 2/3] riscv: Implement Zicbom-based cache management operations |
| |
On Thu, Jun 16, 2022 at 02:09:47PM +0200, Heiko Stübner wrote: > My guess was that new platforms implementing cache-management will want > to be non-coherent by default?
No. Cache incoherent DMA is absolutely horrible and almost impossible to get right for the corner cases. It is a cost cutting measure seen on cheap SOCs and mostly avoided for more enterprise grade products.
| |