Re: [PATCH 1/2] arm64: dma_mapping: allow PCI host driver to limit DMA mask

From: Sergei Shtylyov
Date: Fri Dec 30 2016 - 05:07:24 EST

On 12/30/2016 12:46 PM, Sergei Shtylyov wrote:

It is possible that PCI device supports 64-bit DMA addressing, and thus
it's driver sets device's dma_mask to DMA_BIT_MASK(64), however PCI host


bridge has limitations on inbound transactions addressing. Example of
such setup is NVME

Isn't it called NVMe?

SSD device connected to RCAR PCIe controller.


Sorry, R-Car. :-)


MBR, Sergei