Rob Herring 0405a5cec3 pstore/ram: avoid atomic accesses for ioremapped regions ...

For persistent RAM outside of main memory, the memory may have limitations
on supported accesses. For internal RAM on highbank platform exclusive
accesses are not supported and will hang the system. So atomic_cmpxchg
cannot be used. This commit uses spinlock protection for buffer size and
start updates on ioremapped regions instead.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Anton Vorontsov <anton@enomsg.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>

2013-06-14 15:54:21 -07:00

..

ftrace.c

pstore/ftrace: Adjust for ftrace_ops->func prototype change

2012-12-12 19:50:04 -08:00

inode.c

pstore: Create a convenient mount point for pstore

2013-02-12 13:07:22 -08:00

internal.h

efi_pstore: Add a sequence counter to a variable name

2012-11-26 16:07:44 -08:00

Kconfig

pstore/ftrace: Convert to its own enable/disable debugfs knob

2012-09-06 22:16:58 -07:00

Makefile

…

platform.c

pstore: Avoid deadlock in panic and emergency-restart path

2013-01-11 10:20:50 -08:00

ram_core.c

pstore/ram: avoid atomic accesses for ioremapped regions

2013-06-14 15:54:21 -07:00

ram.c

Couple of pstore cleanups

2013-05-09 16:42:10 -07:00