Re: fully convert arm to use dma-direct v3

From: Christoph Hellwig
Date: Wed Jun 29 2022 - 02:28:46 EST


Any comments or additional testing? It would be really great to get
this off the table.

On Tue, Jun 14, 2022 at 11:20:37AM +0200, Christoph Hellwig wrote:
> Hi all,
>
> arm is the last platform not using the dma-direct code for directly
> mapped DMA. With the dmaboune removal from Arnd we can easily switch
> arm to always use dma-direct now (it already does for LPAE configs
> and nommu). I'd love to merge this series through the dma-mapping tree
> as it gives us the opportunity for additional core dma-mapping
> improvements.
>
> Changes since v2:
> - rebased to Linux 5.19-rc2
>
> Changes since v1:
> - remove another unused function
> - improve a few commit logs
> - add three more patches from Robin
>
> Diffstat:
> arch/arm/common/dmabounce.c | 582 -----------------
> arch/arm/include/asm/dma-mapping.h | 128 ---
> b/arch/arm/Kconfig | 5
> b/arch/arm/common/Kconfig | 6
> b/arch/arm/common/Makefile | 1
> b/arch/arm/common/sa1111.c | 64 -
> b/arch/arm/include/asm/device.h | 3
> b/arch/arm/include/asm/dma-direct.h | 49 -
> b/arch/arm/include/asm/memory.h | 2
> b/arch/arm/mach-footbridge/Kconfig | 1
> b/arch/arm/mach-footbridge/common.c | 19
> b/arch/arm/mach-footbridge/include/mach/dma-direct.h | 8
> b/arch/arm/mach-footbridge/include/mach/memory.h | 4
> b/arch/arm/mach-highbank/highbank.c | 2
> b/arch/arm/mach-mvebu/coherency.c | 2
> b/arch/arm/mm/dma-mapping.c | 649 ++-----------------
> b/drivers/usb/core/hcd.c | 17
> b/drivers/usb/host/ohci-sa1111.c | 25
> 18 files changed, 137 insertions(+), 1430 deletions(-)
>
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