linux/arch/mips/jazz
Christoph Hellwig 58b0440663 dma-mapping: consolidate the dma mmap implementations
The only functional differences (modulo a few missing fixes in the arch
code) is that architectures without coherent caches need a hook to
convert a virtual or dma address into a pfn, given that we don't have
the kernel linear mapping available for the otherwise easy virt_to_page
call.  As a side effect we can support mmap of the per-device coherent
area even on architectures not providing the callback, and we make
previous dangerous default methods dma_common_mmap actually save for
non-coherent architectures by rejecting it without the right helper.

In addition to that we need a hook so that some architectures can
override the protection bits when mmaping a dma coherent allocations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
2018-09-20 09:01:16 +02:00
..
irq.c MIPS: Jazz: Migrate to new 'set-state' interface 2015-09-03 12:07:50 +02:00
jazzdma.c dma-mapping: consolidate the dma mmap implementations 2018-09-20 09:01:16 +02:00
Kconfig MIPS: jazz: split dma mapping operations from dma-default 2018-06-24 09:27:27 -07:00
Makefile MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
Platform MIPS: Jazz: Migrate to new platform makefile style. 2010-08-05 13:25:48 +01:00
reset.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
setup.c mips/jazz: provide missing dma_mask/coherent_dma_mask 2018-07-12 08:58:31 -07:00