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Catalin Marinas 93dc68876b ARM: 7684/1: errata: Workaround for Cortex-A15 erratum 798181 (TLBI/DSB operations) 
On Cortex-A15 (r0p0..r3p2) the TLBI/DSB are not adequately shooting down
all use of the old entries. This patch implements the erratum workaround
which consists of:

1. Dummy TLBIMVAIS and DSB on the CPU doing the TLBI operation.
2. Send IPI to the CPUs that are running the same mm (and ASID) as the
   one being invalidated (or all the online CPUs for global pages).
3. CPU receiving the IPI executes a DMB and CLREX (part of the exception
   return code already).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-04-03 16:45:49 +01:00
..
alpha Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
arc ARC: split elf.h into uapi and export it for userspace 2013-02-27 20:00:26 +05:30
arm ARM: 7684/1: errata: Workaround for Cortex-A15 erratum 798181 (TLBI/DSB operations) 2013-04-03 16:45:49 +01:00
arm64 arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS 2013-03-19 16:19:19 +00:00
avr32 Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
blackfin Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
c6x Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
cris Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
frv Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
h8300 Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
hexagon Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
ia64 Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
m32r UAPI: fix endianness conditionals in M32R's asm/stat.h 2013-03-13 15:21:49 -07:00
m68k Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
metag metag: Inhibit NUMA balancing. 2013-03-04 10:29:19 +00:00
microblaze Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
mips Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
mn10300 Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
openrisc openrisc: remove HAVE_VIRT_TO_BUS 2013-03-13 06:12:39 +01:00
parisc Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
powerpc Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-03-21 08:29:11 -07:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2013-03-18 08:19:13 -07:00
score Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
sh hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2013-03-19 14:47:11 -07:00
tile Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
um um: Use tty_port in SIGWINCH handler 2013-03-11 10:08:04 +01:00
unicore32 Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
x86 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-03-21 08:29:11 -07:00
xtensa Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00
.gitignore
Kconfig Select VIRT_TO_BUS directly where needed 2013-03-12 11:16:40 -07:00