diff options
| author | Anju T Sudhakar <anju@linux.vnet.ibm.com> | 2019-03-22 12:13:51 +0530 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.ibm.com> | 2019-03-28 15:24:13 +1100 |
| commit | df2a1e579aaa4c6ac8831e4a24b16b11a7e2588d (patch) | |
| tree | 8f738da476c328283c23126cf24f5759fcdab072 /extract-gcov.c | |
| parent | fa8f3f3fceadcf33212d0449e0c8e787e893401a (diff) | |
| download | talos-skiboot-df2a1e579aaa4c6ac8831e4a24b16b11a7e2588d.tar.gz talos-skiboot-df2a1e579aaa4c6ac8831e4a24b16b11a7e2588d.zip | |
hw/imc: Enable opal calls to init/start/stop IMC Trace mode
Patch to enhance the imc opal call to support and handle trace_imc mode.
To initialize the trace-mode, TRACE_IMC_SCOM value is written to
TRACE_IMC_ADDR of the respective core.
TRACE_IMC_SCOM is a 64bit value, and each bit represent the following:
0:1 : SAMPSEL
2:33 : CPMC_LOAD
34:40 : CPMC1SEL
41:47 : CPMC2SEL
48:50 : BUFFERSIZE
51:63 : RESERVED
Currently the value for TRACE_IMC_SCOM is hard coded.
During initialization htm_mode is disabled, and enabled only at start.
The opal calls to start/stop the counters, will write CORE_IMC_HTM_MODE_ENABLE/
CORE_IMC_HTM_MODE_DISABLE respectively to the htm_scom_index of the desired
cores.
Additional switch cases are added to the current opal calls to start/stop
the counters for trace-mode.
Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
Diffstat (limited to 'extract-gcov.c')
0 files changed, 0 insertions, 0 deletions
