Greg Ungerer 2667677fb8 bus: mvebu: pass the coherency availability information at init time ... commit 5686a1e5aa upstream. Until now, the mvebu-mbus was guessing by itself whether hardware I/O coherency was available or not by poking into the Device Tree to see if the coherency fabric Device Tree node was present or not. However, on some upcoming SoCs, the presence or absence of the coherency fabric DT node isn't sufficient: in CONFIG_SMP, the coherency can be enabled, but not in !CONFIG_SMP. In order to clean this up, the mvebu_mbus_dt_init() function is extended to get a boolean argument telling whether coherency is enabled or not. Therefore, the logic to decide whether coherency is available or not now belongs to the core SoC code instead of the mvebu-mbus driver itself, which is much better. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1397483228-25625-4-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net> [ Greg Ungerer: back ported to linux-3.10.y Back port necessary due to large code differences in affected files. This change in combination with commit e553554536 ("ARM: mvebu: disable I/O coherency on non-SMP situations on Armada 370/375/38x/XP") is critical to the hardware I/O coherency being set correctly by both the mbus driver and all peripheral hardware drivers. Without this change drivers will incorrectly enable I/O coherency window attributes and this causes rare unreliable system behavior including oops. ] Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2015-07-03 19:48:09 -07:00
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acpi	ACPICA: Tables: Change acpi_find_root_pointer() to use acpi_physical_address.	2015-05-17 09:51:33 -07:00
asm-generic	nosave: consolidate __nosave_{begin,end} in <asm/sections.h>	2015-05-06 21:56:28 +02:00
clocksource	clocksource: arch_timer: use virtual counters	2014-01-09 12:24:26 -08:00
crypto	crypto: scatterwalk - Use sg_chain_ptr on chain entries	2013-12-11 22:36:29 -08:00
drm	drm/radeon: remove invalid pci id	2014-11-14 08:48:00 -08:00
dt-bindings
keys
linux	bus: mvebu: pass the coherency availability information at init time	2015-07-03 19:48:09 -07:00
math-emu
media	media: vb2: fix VBI/poll regression	2014-10-09 12:18:42 -07:00
memory
misc
net	ipv6: prevent fib6_run_gc() contention	2015-07-03 19:48:09 -07:00
pcmcia
ras
rdma
rxrpc
scsi	scsi: fix our current target reap infrastructure	2014-05-30 21:52:11 -07:00
sound	ALSA: emu10k1: Emu10k2 32 bit DMA mode	2015-05-13 05:15:41 -07:00
target	target: Report correct response length for some commands	2014-06-30 20:09:45 -07:00
trace	tracing: Fix syscall_*regfunc() vs copy_process() race	2014-07-06 18:54:16 -07:00
uapi	netfilter: xt_bpf: add mising opaque struct sk_filter definition	2014-11-21 09:22:54 -08:00
video	Merge branch 'fbdev-3.10-fixes' of git://gitorious.org/linux-omap-dss2/linux into linux-fbdev/for-3.10-fixes	2013-05-29 17:00:34 +08:00
xen	xenbus: delay xenbus frontend resume if xenstored is not running	2013-05-29 09:04:19 -04:00
Kbuild