linux-uconsole/include
Tony Lindgren c0d9d658fa pstore-ram: Allow optional mapping with pgprot_noncached
commit 027bc8b082 upstream.

On some ARMs the memory can be mapped pgprot_noncached() and still
be working for atomic operations. As pointed out by Colin Cross
<ccross@android.com>, in some cases you do want to use
pgprot_noncached() if the SoC supports it to see a debug printk
just before a write hanging the system.

On ARMs, the atomic operations on strongly ordered memory are
implementation defined. So let's provide an optional kernel parameter
for configuring pgprot_noncached(), and use pgprot_writecombine() by
default.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-16 06:59:00 -08:00
..
acpi ACPI / hotplug: Fix conflicted PCI bridge notify handlers 2013-12-04 10:57:04 -08:00
asm-generic mm: use paravirt friendly ops for NUMA hinting ptes 2014-05-30 21:52:12 -07:00
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 pstore-ram: Allow optional mapping with pgprot_noncached 2015-01-16 06:59:00 -08:00
math-emu
media media: vb2: fix VBI/poll regression 2014-10-09 12:18:42 -07:00
memory
misc
net net: sctp: fix skb_over_panic when receiving malformed ASCONF chunks 2014-11-21 09:22:55 -08:00
pcmcia
ras
rdma
rxrpc
scsi scsi: fix our current target reap infrastructure 2014-05-30 21:52:11 -07:00
sound ALSA: control: Protect user controls against concurrent access 2014-06-26 15:12:43 -04:00
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