tree e29d833675458e61aecda860d94c753137351de4
parent f39c4280a3872b0e6c7b01076132c12ad7a90392
author Eli Billauer <eli.billauer@gmail.com> 1438769006 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1438802829 -0700

char: xillybus: Allow 64-bit DMA on PCIe interface

Until now, only 32-bit DMA addressing was allowed, following a report on
some old Intel machine that dropped 64-bit PCIe packets, even though
pci_set_dma_mask() was successful with DMA_BIT_MASK(64).

But then came TI's Keystone II chip (ARM Cortex A15 + DSPs), which refuses
32-bit DMA addressing (for good reasons). So 64-bit DMA is allowed as a
fallback option.

Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>