Paul Burton 20d330645c MIPS: Support per-device DMA coherence ... On some MIPS systems, a subset of devices may have DMA coherent with CPU caches. For example in systems including a MIPS I/O Coherence Unit (IOCU), some devices may be connected to that IOCU whilst others are not. Prior to this patch, we have a plat_device_is_coherent() function but no implementation which does anything besides return a global true or false, optionally chosen at runtime. For devices such as those described above this is insufficient. Fix this by tracking DMA coherence on a per-device basis with a dma_coherent field in struct dev_archdata. Setting this from arch_setup_dma_ops() takes care of devices which set the dma-coherent property via device tree, and any PCI devices beneath a bridge described in DT, automatically. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14349/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2016-10-06 18:02:01 +02:00
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cpu-feature-overrides.h	MIPS: Whitespace cleanup.	2013-02-01 10:00:22 +01:00
dma-coherence.h	MIPS: Support per-device DMA coherence	2016-10-06 18:02:01 +02:00
floppy.h	MIPS: Squash lines for simple wrapper functions	2016-10-04 16:13:57 +02:00
ide.h	mips/ide: flush dcache also if icache does not snoop dcache	2014-01-24 22:39:56 +01:00
ioremap.h	MIPS: Replace use of phys_t with phys_addr_t.	2014-11-24 22:47:31 +01:00
irq.h	MIPS/IRQCHIP: Move irq_chip from arch/mips to drivers/irqchip.	2015-06-21 21:52:50 +02:00
kernel-entry-init.h	MIPS: Fix misspellings in comments.	2016-04-03 12:32:09 +02:00
kmalloc.h	dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN	2010-08-11 08:59:21 -07:00
mangle-port.h
mc146818rtc.h
spaces.h	MIPS: Fix KVM guest fixmap address	2015-06-21 21:53:54 +02:00
topology.h
war.h	MIPS: Create a common <asm/mach-generic/war.h>	2015-03-31 11:59:40 +02:00