From: Christoph Hellwig <hch@lst.de>
To: Hillf Danton <hdanton@sina.com>
Cc: Christoph Hellwig <hch@lst.de>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org
Subject: Re: [PATCH 03/12] MIPS/jazzdma: decouple from dma-direct
Date: Fri, 11 Sep 2020 09:07:30 +0200 [thread overview]
Message-ID: <20200911070730.GA22394@lst.de> (raw)
In-Reply-To: <20200910141233.10768-1-hdanton@sina.com>
On Thu, Sep 10, 2020 at 10:12:33PM +0800, Hillf Danton wrote:
>
> On Tue, 8 Sep 2020 18:47:49 +0200 Christoph Hellwig wrote:
> >
> > The jazzdma ops implement support for a very basic IOMMU. Thus we really
> > should not use the dma-direct code that takes physical address limits
> > into account. This survived through the great MIPS DMA ops cleanup mostly
> > because I was lazy, but now it is time to fully split the implementations.
>
> A minor change in behavior, do we need to clear the dma buf as the
> dma-direct code does?
Yes, I've fixed this up.
prev parent reply other threads:[~2020-09-11 7:07 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-08 16:47 dma-mapping cleanups Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` [PATCH 01/12] MIPS: make dma_sync_*_for_cpu a little less overzealous Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` [PATCH 02/12] MIPS/jazzdma: remove the unused vdma_remap function Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` [PATCH 03/12] MIPS/jazzdma: decouple from dma-direct Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` [PATCH 04/12] dma-mapping: fix DMA_OPS dependencies Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 18:04 ` Sergei Shtylyov
2020-09-08 18:04 ` Sergei Shtylyov
2020-09-08 18:04 ` Sergei Shtylyov
2020-09-11 7:10 ` Christoph Hellwig
2020-09-11 7:10 ` Christoph Hellwig
2020-09-11 7:10 ` Christoph Hellwig
2020-09-10 12:55 ` Robin Murphy
2020-09-10 12:55 ` Robin Murphy
2020-09-10 12:55 ` Robin Murphy
2020-09-11 7:09 ` Christoph Hellwig
2020-09-11 7:09 ` Christoph Hellwig
2020-09-11 7:09 ` Christoph Hellwig
2020-09-08 16:47 ` [PATCH 05/12] dma-mapping: add (back) arch_dma_mark_clean for ia64 Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` [PATCH 06/12] dma-direct: remove dma_direct_{alloc,free}_pages Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-10 12:57 ` Robin Murphy
2020-09-10 12:57 ` Robin Murphy
2020-09-10 12:57 ` Robin Murphy
2020-09-08 16:47 ` [PATCH 07/12] dma-direct: lift gfp_t manipulation out of__dma_direct_alloc_pages Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-10 13:02 ` Robin Murphy
2020-09-10 13:02 ` Robin Murphy
2020-09-10 13:02 ` Robin Murphy
2020-09-08 16:47 ` [PATCH 08/12] dma-direct: use phys_to_dma_direct in dma_direct_alloc Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-10 13:03 ` Robin Murphy
2020-09-10 13:03 ` Robin Murphy
2020-09-10 13:03 ` Robin Murphy
2020-09-08 16:47 ` [PATCH 09/12] dma-direct: remove __dma_to_phys Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-10 9:45 ` Dan Carpenter
2020-09-10 9:45 ` Dan Carpenter
2020-09-11 7:12 ` Christoph Hellwig
2020-09-10 13:26 ` Robin Murphy
2020-09-10 13:26 ` Robin Murphy
2020-09-10 13:26 ` Robin Murphy
2020-09-11 7:14 ` Christoph Hellwig
2020-09-11 7:14 ` Christoph Hellwig
2020-09-11 7:14 ` Christoph Hellwig
2020-09-08 16:47 ` [PATCH 10/12] dma-direct: rename and cleanup __phys_to_dma Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-10 13:30 ` Robin Murphy
2020-09-10 13:30 ` Robin Murphy
2020-09-10 13:30 ` Robin Murphy
2020-09-08 16:47 ` [PATCH 11/12] dma-mapping: move dma_common_{mmap,get_sgtable} out of mapping.c Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` [PATCH 11/12] dma-mapping: move dma_common_{mmap, get_sgtable} " Christoph Hellwig
2020-09-10 13:34 ` [PATCH 11/12] dma-mapping: move dma_common_{mmap,get_sgtable} " Robin Murphy
2020-09-10 13:34 ` Robin Murphy
2020-09-10 13:34 ` [PATCH 11/12] dma-mapping: move dma_common_{mmap, get_sgtable} " Robin Murphy
2020-09-11 7:15 ` [PATCH 11/12] dma-mapping: move dma_common_{mmap,get_sgtable} " Christoph Hellwig
2020-09-11 7:15 ` Christoph Hellwig
2020-09-11 7:15 ` Christoph Hellwig
2020-09-08 16:47 ` [PATCH 12/12] dma-mapping: move the dma_declare_coherent_memory documentation Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-08 16:47 ` Christoph Hellwig
2020-09-10 13:51 ` Robin Murphy
2020-09-10 13:51 ` Robin Murphy
2020-09-10 13:51 ` Robin Murphy
2020-09-11 7:17 ` Christoph Hellwig
2020-09-11 7:17 ` Christoph Hellwig
2020-09-11 7:17 ` Christoph Hellwig
[not found] ` <20200910141233.10768-1-hdanton@sina.com>
2020-09-11 7:07 ` Christoph Hellwig [this message]
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