Re: [PATCH v2 2/2] dma-contiguous: Use fallback alloc_pages for single pages
From: Masahiro Yamada <hidden>
Date: 2019-08-27 07:46:01
Also in:
linux-iommu, linux-mmc, lkml
On Mon, Aug 26, 2019 at 4:33 PM Christoph Hellwig [off-list ref] wrote:
On Mon, Aug 26, 2019 at 11:05:00AM +0900, Masahiro Yamada wrote:quoted
This is included in v5.3-rc6 so I tested it.So there is no allocation failure, but you get I/O errors later?
Right.
Does the device use a device-private CMA area?
Not sure. My driver is drivers/mmc/host/sdhci-cadence.c It reuses routines in drivers/mmc/host/sdhci.c
Does it work with Linux 5.2 if CONFIG_DMA_CMA is disabled?
No. 5.2 + disable CONFIG_DMA_CMA failed in the same way. -- Best Regards Masahiro Yamada _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel