Jim Quinlan a6079a371f MIPS: DMA: For BMIPS5000 cores flush region just like non-coherent R10000 ... commit f86f55d3ad upstream. The BMIPS5000 (Zephyr) processor utilizes instruction speculation. A stale misprediction address in either the JTB or the CRS may trigger a prefetch inside a region that is currently being used by a DMA engine, which is not IO-coherent. This prefetch will fetch a line into the scache, and that line will soon become stale (ie wrong) during/after the DMA. Mayhem ensues. In dma-default.c, the r10000 is handled as a special case in the same way that we want to handle Zephyr. So we generalize the exception cases into a function, and include Zephyr as one of the processors that needs this special care. Signed-off-by: Jim Quinlan <jim2101024@gmail.com> Cc: linux-mips@linux-mips.org Cc: cernekee@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5776/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: John Ulvr <julvr@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-12-20 07:34:19 -08:00
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alchemy
ar7
ath79	MIPS: ath79: Fix ar933x watchdog clock	2013-09-26 17:15:50 -07:00
bcm47xx
bcm63xx
boot
cavium-octeon
cobalt
configs
dec
emma
fw
include/asm	MIPS: Rewrite pfn_valid to work in modules, too.	2013-08-20 08:26:28 -07:00
jazz
jz4740
kernel	MIPS: Fix poweroff failure when HOTPLUG_CPU configured.	2013-01-17 08:50:42 -08:00
lantiq
lasat
lib
loongson
math-emu
mipssim
mm	MIPS: DMA: For BMIPS5000 cores flush region just like non-coherent R10000	2013-12-20 07:34:19 -08:00
mti-malta
netlogic
oprofile
pci
pmc-sierra
pnx833x
pnx8550
power
powertv
rb532
sgi-ip22
sgi-ip27
sgi-ip32
sibyte
sni
txx9
vr41xx
wrppmc
Kbuild
Kbuild.platforms
Kconfig	MIPS: Expose missing pci_io{map,unmap} declarations	2013-08-20 08:26:27 -07:00
Kconfig.debug
Makefile	kbuild: Fix gcc -x syntax	2012-10-13 05:38:37 +09:00