diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2020-09-18 15:28:38 +0200 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-09-28 19:50:20 +0200 |
| commit | 0ba64770a2f2e5a104bf835e133d78d3f82287ad (patch) | |
| tree | a6df3bbd9d3c7956c140ad4a85ebfa5639bff772 /drivers/perf/Kconfig | |
| parent | perf: Add Arm CMN-600 DT binding (diff) | |
| download | linux-0ba64770a2f2e5a104bf835e133d78d3f82287ad.tar.xz linux-0ba64770a2f2e5a104bf835e133d78d3f82287ad.zip | |
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>
Diffstat (limited to 'drivers/perf/Kconfig')
| -rw-r--r-- | drivers/perf/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/perf/Kconfig b/drivers/perf/Kconfig index 7305d57d1890..130327ff0b0e 100644 --- a/drivers/perf/Kconfig +++ b/drivers/perf/Kconfig @@ -41,6 +41,13 @@ config ARM_CCN PMU (perf) driver supporting the ARM CCN (Cache Coherent Network) interconnect. +config ARM_CMN + tristate "Arm CMN-600 PMU support" + depends on ARM64 || (COMPILE_TEST && 64BIT) + help + Support for PMU events monitoring on the Arm CMN-600 Coherent Mesh + Network interconnect. + config ARM_PMU depends on ARM || ARM64 bool "ARM PMU framework" |