> 2023年3月1日 13:06,Christoph Hellwig <h...@lst.de> 写道: > >> - select OF_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE > > Doesn't powerpc need to select CONFIG_ARCH_DMA_DEFAULT_COHERENT now, > or even better should be doing that in the patch adding that > symbol? If I read the code correctly for powerpc OF_DMA_DEFAULT_COHERENT is only selected with !NOT_COHERENT_CACHE, which means non-coherent dma support is disabled…. > > In fact I wonder if adding CONFIG_ARCH_DMA_DEFAULT_COHERENT and removing > OF_DMA_DEFAULT_COHERENT should be one patch, as that seems to bring > over the intent a little better I'd say.
- [PATCH v2 0/5] Use dma_default_coherent for devicetree d... Jiaxun Yang
- [PATCH v2 1/5] of: address: Fix default coherency f... Jiaxun Yang
- [PATCH v2 2/5] dma-mapping: Provide a fallback dma_... Jiaxun Yang
- Re: [PATCH v2 2/5] dma-mapping: Provide a fallb... Christoph Hellwig
- [PATCH v2 3/5] dma-mapping: Provide CONFIG_ARCH_DMA... Jiaxun Yang
- Re: [PATCH v2 3/5] dma-mapping: Provide CONFIG_... Christoph Hellwig
- [PATCH v2 4/5] riscv: Select ARCH_DMA_DEFAULT_COHER... Jiaxun Yang
- Re: [PATCH v2 4/5] riscv: Select ARCH_DMA_DEFAU... Conor Dooley
- [PATCH v2 5/5] of: address: Always use dma_default_... Jiaxun Yang
- Re: [PATCH v2 5/5] of: address: Always use dma_... Christoph Hellwig
- Re: [PATCH v2 5/5] of: address: Always use ... Jiaxun Yang
- Re: [PATCH v2 5/5] of: address: Always ... Michael Ellerman