Anton Blanchard 7b9eab8f52 powerpc/perf: Never program book3s PMCs with values >= 0x80000000 ... commit f56029410a upstream. We are seeing a lot of PMU warnings on POWER8: Can't find PMC that caused IRQ Looking closer, the active PMC is 0 at this point and we took a PMU exception on the transition from negative to 0. Some versions of POWER8 have an issue where they edge detect and not level detect PMC overflows. A number of places program the PMC with (0x80000000 - period_left), where period_left can be negative. We can either fix all of these or just ensure that period_left is always >= 1. This patch takes the second option. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-07-17 15:39:50 -07:00
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boot	powerpc/85xx: use the BRx registers to enable indirect mode on the P1022DS	2012-08-09 08:31:27 -07:00
configs	Merge remote-tracking branch 'kumar/next' into merge	2012-04-02 13:57:46 +10:00
include/asm	powerpc: Fix 64 bit builds with binutils 2.24	2014-06-16 13:45:45 -07:00
kernel	powerpc/sysfs: Disable writing to PURR in guest mode	2014-07-09 10:51:22 -07:00
kvm	KVM: PPC: Emulate dcbf	2014-03-11 16:10:03 -07:00
lib	powerpc: Restore registers on error exit from csum_partial_copy_generic()	2014-07-09 10:51:21 -07:00
math-emu
mm	powerpc/numa: Avoid stupid uninitialized warning from gcc	2013-08-20 08:26:28 -07:00
net	bpf jit: Let the powerpc jit handle negative offsets	2012-04-30 13:40:50 -04:00
oprofile	Disintegrate asm/system.h for PowerPC	2012-03-28 18:30:02 +01:00
perf	powerpc/perf: Never program book3s PMCs with values >= 0x80000000	2014-07-17 15:39:50 -07:00
platforms	powerpc/pseries: Fix overwritten PE state	2014-07-06 18:49:20 -07:00
sysdev	powerpc: Make sure IPI handlers see data written by IPI senders	2012-09-14 10:00:22 -07:00
xmon	powerpc/xmon: Use cpumask iterator to avoid warning	2012-07-16 09:03:23 -07:00
Kconfig	powerpc: Work around gcc miscompilation of __pa() on 64-bit	2013-09-07 21:58:14 -07:00
Kconfig.debug	irqdomain: Remove powerpc dependency from debugfs file	2012-03-29 14:31:02 -06:00
Makefile	powerpc: Fix 64 bit builds with binutils 2.24	2014-06-16 13:45:45 -07:00
relocs_check.pl