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8828880d09
linux/arch
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Hiroshi DOYU 8828880d09 omap: mailbox: Flush posted write when acking mailbox irq 
The only way to flush posted write to L4 bus is to do a read back
of the same register right after the write.

This seems to be mostly needed in interrupt handlers to avoid
causing spurious interrupts.

The earlier fix has been to mark the L4 bus as strongly ordered
memory, which solves the problem, but causes performance penalties.

Similar to the fix, 03803a71041e3bc3c077f4e7b92f6ceaa9426df3

Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-09-24 16:23:10 -07:00
..
alpha alpha: AGP update (fixes compile failure) 2009-09-24 07:21:06 -07:00
arm omap: mailbox: Flush posted write when acking mailbox irq 2009-09-24 16:23:10 -07:00
avr32 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next 2009-09-23 15:37:02 -07:00
blackfin Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next 2009-09-23 15:37:02 -07:00
cris Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next 2009-09-23 15:37:02 -07:00
frv sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
h8300 headers: utsname.h redux 2009-09-23 18:13:10 -07:00
ia64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2009-09-23 18:14:11 -07:00
m32r Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2009-09-23 18:14:11 -07:00
m68k headers: utsname.h redux 2009-09-23 18:13:10 -07:00
m68knommu headers: utsname.h redux 2009-09-23 18:13:10 -07:00
microblaze Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze 2009-09-24 09:01:44 -07:00
mips sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
mn10300 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2009-09-23 18:14:11 -07:00
parisc fcntl: add F_[SG]ETOWN_EX 2009-09-24 07:21:01 -07:00
powerpc Merge branch 'for-linus' of git://neil.brown.name/md 2009-09-24 07:55:29 -07:00
s390 sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
score Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next 2009-09-23 15:37:02 -07:00
sh Merge branch 'for-linus' of git://neil.brown.name/md 2009-09-24 07:55:29 -07:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2009-09-23 18:14:11 -07:00
um Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2009-09-23 18:14:11 -07:00
x86 Merge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel 2009-09-24 10:30:41 -07:00
xtensa Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next 2009-09-23 15:37:02 -07:00
.gitignore
Kconfig oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP 2009-09-17 15:53:42 -04:00