3 commits

Author	SHA1	Message	Date
Will Deacon	887e2cff0f	perf: arm-cmn: Fix conversion specifiers for node type ... The node type field is an enum type, so print it as a 32-bit quantity rather than as an unsigned short. Link: https://lore.kernel.org/r/202009302350.QIzfkx62-lkp@intel.com Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Will Deacon <will@kernel.org>	2020-10-01 22:30:07 +01:00
Will Deacon	d9ef632fab	perf: arm-cmn: Fix unsigned comparison to less than zero ... Ensure that the 'irq' field of 'struct arm_cmn_dtc' is a signed int so that it can be compared '< 0'. Link: https://lore.kernel.org/r/20200929170835.GA15956@embeddedor Addresses-Coverity-ID: 1497488 ("Unsigned compared against 0") Fixes: 0ba64770a2 ("perf: Add Arm CMN-600 PMU driver") Reported-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>	2020-10-01 22:29:53 +01:00
Robin Murphy	0ba64770a2	perf: Add Arm CMN-600 PMU driver ... Initial driver for PMU event counting on the Arm CMN-600 interconnect. CMN sports an obnoxiously complex distributed PMU system as part of its debug and trace features, which can do all manner of things like sampling, cross-triggering and generating CoreSight trace. This driver covers the PMU functionality, plus the relevant aspects of watchpoints for simply counting matching flits. Tested-by: Tsahi Zidenberg <tsahee@amazon.com> Tested-by: Tuan Phan <tuanphan@os.amperecomputing.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will@kernel.org>	2020-09-28 18:50:20 +01:00