Re: [PATCH 4/7] dma-mapping: Always provide dma_default_coherent

[PATCH 0/7] MIPS DMA coherence fixes · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
[PATCH 1/7] MIPS: Remove DMA_PERDEV_COHERENT · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
Re: [PATCH 1/7] MIPS: Remove DMA_PERDEV_COHERENT · Christoph Hellwig <hch@lst.de> · 2023-02-21
[PATCH 2/7] MIPS: Always select ARCH_HAS_SYNC_DMA_FOR_CPU for noncoherent platforms · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
[PATCH 3/7] MIPS: c-r4k: Always install dma flush functions · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
[PATCH 4/7] dma-mapping: Always provide dma_default_coherent · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
Re: [PATCH 4/7] dma-mapping: Always provide dma_default_coherent · Christoph Hellwig <hch@lst.de> · 2023-02-21
Re: [PATCH 4/7] dma-mapping: Always provide dma_default_coherent · Robin Murphy <robin.murphy@arm.com> · 2023-02-21
Re: [PATCH 4/7] dma-mapping: Always provide dma_default_coherent · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
[PATCH 5/7] dma-mapping: Provide CONFIG_ARCH_DMA_DEFAULT_COHERENT · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
Re: [PATCH 5/7] dma-mapping: Provide CONFIG_ARCH_DMA_DEFAULT_COHERENT · Christoph Hellwig <hch@lst.de> · 2023-02-21
Re: [PATCH 5/7] dma-mapping: Provide CONFIG_ARCH_DMA_DEFAULT_COHERENT · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
[PATCH 6/7] riscv: Select ARCH_DMA_DEFAULT_COHERENT · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
Re: [PATCH 6/7] riscv: Select ARCH_DMA_DEFAULT_COHERENT · Conor Dooley <conor@kernel.org> · 2023-02-21
Re: [PATCH 6/7] riscv: Select ARCH_DMA_DEFAULT_COHERENT · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
[PATCH 7/7] of: address: Use dma_default_coherent to determine default coherency · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
Re: [PATCH 0/7] MIPS DMA coherence fixes · Christoph Hellwig <hch@lst.de> · 2023-02-21
Re: [PATCH 0/7] MIPS DMA coherence fixes · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
Re: [PATCH 0/7] MIPS DMA coherence fixes · Robin Murphy <robin.murphy@arm.com> · 2023-02-21
Re: [PATCH 0/7] MIPS DMA coherence fixes · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-21
Re: [PATCH 0/7] MIPS DMA coherence fixes · Robin Murphy <robin.murphy@arm.com> · 2023-02-22
Re: [PATCH 0/7] MIPS DMA coherence fixes · Jiaxun Yang <jiaxun.yang@flygoat.com> · 2023-02-22
Re: [PATCH 0/7] MIPS DMA coherence fixes · Robin Murphy <robin.murphy@arm.com> · 2023-02-22

From: Christoph Hellwig <hch@lst.de>
Date: 2023-02-21 17:58:29
Also in: linux-mips, lkml

On Tue, Feb 21, 2023 at 12:46:10PM +0000, Jiaxun Yang wrote:

dma_default_coherent can be useful for determine default coherency
even on arches without noncoherent support.

How?

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