linux-dev/arch/powerpc/perf/bhrb.S, branch linus/masterLinux kernel development work - see feature brancheshttps://git.zx2c4.com/linux-dev/atom/arch/powerpc/perf/bhrb.S?h=linus%2Fmaster2019-05-30T18:26:32Ztreewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1522019-05-30T18:26:32ZThomas Gleixnertglx@linutronix.de2019-05-27T06:55:01Zurn:sha1:2874c5fd284268364ece81a7bd936f3c8168e567
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 3029 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
powerpc/perf: Add basic assembly code to read BHRB entries on POWER82013-04-26T06:11:11ZAnshuman Khandualkhandual@linux.vnet.ibm.com2013-04-22T19:42:41Zurn:sha1:73760931dcbcbe29eab72e06577a77c64f16fd02
This patch adds the basic assembly code to read BHRB buffer. BHRB entries
are valid only after a PMU interrupt has happened (when MMCR0[PMAO]=1)
and BHRB has been freezed. BHRB read should not be attempted when it is
still enabled (MMCR0[PMAE]=1) and getting updated, as this can produce
non-deterministic results.
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>