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| author | Anju T Sudhakar <anju@linux.vnet.ibm.com> | 2017-07-19 03:06:34 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-07-25 22:55:45 +1000 |
| commit | 885dcd709ba9120b9935415b8b0f9d1b94e5826b (patch) | |
| tree | 627fa60844403620c01545be2dee1fbdb955fdf8 /arch/powerpc/platforms | |
| parent | 8f95faaac56c18b32d0e23ace55417a440abdb7e (diff) | |
| download | blackbird-op-linux-885dcd709ba9120b9935415b8b0f9d1b94e5826b.tar.gz blackbird-op-linux-885dcd709ba9120b9935415b8b0f9d1b94e5826b.zip | |
powerpc/perf: Add nest IMC PMU support
Add support to register Nest In-Memory Collection PMU counters.
Patch adds a new device file called "imc-pmu.c" under powerpc/perf
folder to contain all the device PMU functions.
Device tree parser code added to parse the PMU events information
and create sysfs event attributes for the PMU.
Cpumask attribute added along with Cpu hotplug online/offline functions
specific for nest PMU. A new state "CPUHP_AP_PERF_POWERPC_NEST_IMC_ONLINE"
added for the cpu hotplug callbacks. Error handle path frees the memory
and unregisters the CPU hotplug callbacks.
Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-imc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c index f57a6fbd3f57..b903bf5e6006 100644 --- a/arch/powerpc/platforms/powernv/opal-imc.c +++ b/arch/powerpc/platforms/powernv/opal-imc.c @@ -108,6 +108,11 @@ static int imc_pmu_create(struct device_node *parent, int pmu_index, int domain) } } + /* Function to register IMC pmu */ + ret = init_imc_pmu(parent, pmu_ptr, pmu_index); + if (ret) + pr_err("IMC PMU %s Register failed\n", pmu_ptr->pmu.name); + return 0; free_pmu: |
