iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
ad5d5292f1
linux/arch/powerpc
History
Eric B Munson ad5d5292f1 powerpc/oprofile: Handle events that raise an exception without overflowing 
Commit 0837e3242c fixes a situation on POWER7
where events can roll back if a specualtive event doesn't actually complete.
This can raise a performance monitor exception.  We need to catch this to ensure
that we reset the PMC.  In all cases the PMC will be less than 256 cycles from
overflow.

This patch lifts Anton's fix for the problem in perf and applies it to oprofile
as well.

Signed-off-by: Eric B Munson <emunson@mgebm.net>
Cc: <stable@kernel.org> # as far back as it applies cleanly
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-05-26 13:38:57 +10:00
..
boot ptp: Added a clock that uses the eTSEC found on the MPC85xx. 2011-05-23 13:10:14 -07:00
configs Merge remote branch 'kumar/next' into next 2011-05-20 13:43:47 +10:00
include/asm powerpc/ftrace: Implement raw syscall tracepoints on PowerPC 2011-05-26 13:38:57 +10:00
kernel powerpc/ftrace: Implement raw syscall tracepoints on PowerPC 2011-05-26 13:38:57 +10:00
kvm Merge branch 'kvm-updates/2.6.40' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2011-05-23 08:42:08 -07:00
lib Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-05-20 13:28:01 -07:00
math-emu powerpc/85xx: Fix SPE float to integer conversion failure 2011-03-15 13:48:15 -05:00
mm mm, powerpc: move the RCU page-table freeing into generic code 2011-05-25 08:39:16 -07:00
oprofile powerpc/oprofile: Handle events that raise an exception without overflowing 2011-05-26 13:38:57 +10:00
platforms Merge remote branch 'origin/master' into merge 2011-05-20 15:36:52 +10:00
sysdev Merge remote branch 'origin/master' into merge 2011-05-20 15:36:52 +10:00
xmon powerpc: Remove call sites of MSG_ALL_BUT_SELF 2011-05-19 14:30:46 +10:00
Kconfig powerpc/ftrace: Implement raw syscall tracepoints on PowerPC 2011-05-26 13:38:57 +10:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile powerpc: Fix typo in uImage target 2010-08-24 15:26:32 +10:00
relocs_check.pl