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* remove block layer bounce buffering for MMC v2
@ 2019-02-12  7:25 Christoph Hellwig
  2019-02-12  7:25 ` [PATCH 01/14] scatterlist: add sg_kmap_atomic / sg_kunmap_atomic helpers Christoph Hellwig
                   ` (14 more replies)
  0 siblings, 15 replies; 19+ messages in thread
From: Christoph Hellwig @ 2019-02-12  7:25 UTC (permalink / raw)
  To: Ulf Hansson
  Cc: Aaro Koskinen, Nicolas Pitre, linux-mmc, Russell King,
	linux-kernel, iommu, Ben Dooks, linux-omap, linux-arm-kernel

Hi everyone,

this series converts the remaining MMC host drivers to properly kmap the
scatterlist entries it does PIO operations on, and then goes on to
remove the usage of block layer bounce buffering (which I plan to remove
eventually) from the MMC layer.

As a bonus I've converted various drivers to the proper scatterlist
helpers so that at least in theory they are ready for chained
scatterlists.

All the changes are compile tested only as I don't have any of the
hardware, so a careful review would be appreciated.

Changes since v1:
 - fix a missing kunmap_atomic in mvsdio
 - fix a stray whitespace in s3cmci
 - add new sg_kmap_atomic and sg_kunmap_atomic helpers
 - set the DMA and block layer dma boundary
 - use pointer arithmetics to reduce the amount of changes in
   various drivers


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^ permalink raw reply	[flat|nested] 19+ messages in thread

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Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-02-12  7:25 remove block layer bounce buffering for MMC v2 Christoph Hellwig
2019-02-12  7:25 ` [PATCH 01/14] scatterlist: add sg_kmap_atomic / sg_kunmap_atomic helpers Christoph Hellwig
2019-02-12  7:25 ` [PATCH 02/14] mmc: remove the unused use_blk_mq field from struct mmc_host Christoph Hellwig
2019-02-12  7:25 ` [PATCH 03/14] mmc: add a need_kmap flag to " Christoph Hellwig
2019-02-12  7:25 ` [PATCH 04/14] mmc: davinci: handle highmem pages Christoph Hellwig
2019-02-12  7:25 ` [PATCH 05/14] mmc: moxart: " Christoph Hellwig
2019-02-12  7:25 ` [PATCH 06/14] mmc: omap: " Christoph Hellwig
2019-02-12 18:39   ` Tony Lindgren
2019-02-12  7:25 ` [PATCH 07/14] mmc: omap: handle chained sglists Christoph Hellwig
2019-02-12  7:25 ` [PATCH 08/14] mmc: s3cmci: handle highmem pages Christoph Hellwig
2019-02-12  7:25 ` [PATCH 09/14] mmc: s3cmci: handle chained sglists Christoph Hellwig
2019-02-12  7:25 ` [PATCH 10/14] mmc: mvsdio: handle highmem pages Christoph Hellwig
2019-02-12  7:25 ` [PATCH 11/14] mmc: sh_mmcif: " Christoph Hellwig
2019-02-12  7:25 ` [PATCH 12/14] mmc: sh_mmcif: handle chained sglists Christoph Hellwig
2019-02-12  7:25 ` [PATCH 13/14] mmc: core: don't use block layer bounce buffers Christoph Hellwig
2019-02-12  7:25 ` [PATCH 14/14] dma-mapping: remove dma_max_pfn Christoph Hellwig
2019-02-25 13:54 ` remove block layer bounce buffering for MMC v2 Ulf Hansson
2019-03-08  9:18   ` Christoph Hellwig
2019-03-08  9:43     ` Ulf Hansson

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