diff options
| author |   Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2017-07-19 03:06:32 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-07-24 23:00:22 +1000 |
| commit | 28a5db0061014c8afbbb98560cf420c29bc4d8e1 (patch) | |
| tree | c64d4825954a9a0e0696f25dbace9fd4f4fd051d /arch/powerpc/platforms/powernv/opal-wrappers.S | |
| parent | powerpc/mm: Build fix for non SPARSEMEM_VMEMAP config (diff) | |
| download | linux-dev-28a5db0061014c8afbbb98560cf420c29bc4d8e1.tar.xz linux-dev-28a5db0061014c8afbbb98560cf420c29bc4d8e1.zip | |
powerpc/powernv: Add IMC OPAL APIs
In-Memory Collection (IMC) counters are performance monitoring
infrastructure. These counters need special sequence of SCOMs to
init/start/stop which is handled by OPAL. And OPAL provides three APIs
to init and control these IMC engines.
OPAL API documentation:
https://github.com/open-power/skiboot/blob/master/doc/opal-api/opal-imc-counters.rst
Patch updates the kernel side powernv platform code to support the new
OPAL APIs
Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>
Signed-off-by: Anju T Sudhakar <anju@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/powernv/opal-wrappers.S')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-wrappers.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 4ca6c26a56d5..b77f52ee8263 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -310,3 +310,6 @@ OPAL_CALL(opal_xive_dump, OPAL_XIVE_DUMP); OPAL_CALL(opal_npu_init_context, OPAL_NPU_INIT_CONTEXT); OPAL_CALL(opal_npu_destroy_context, OPAL_NPU_DESTROY_CONTEXT); OPAL_CALL(opal_npu_map_lpar, OPAL_NPU_MAP_LPAR); +OPAL_CALL(opal_imc_counters_init, OPAL_IMC_COUNTERS_INIT); +OPAL_CALL(opal_imc_counters_start, OPAL_IMC_COUNTERS_START); +OPAL_CALL(opal_imc_counters_stop, OPAL_IMC_COUNTERS_STOP); |