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| author | Athira Rajeev <atrajeev@linux.vnet.ibm.com> | 2025-01-21 18:46:21 +0530 |
|---|---|---|
| committer | Madhavan Srinivasan <maddy@linux.ibm.com> | 2025-02-11 11:33:11 +0530 |
| commit | f848e7ee1588d66539da7315d9a99bfaeda3b970 (patch) | |
| tree | 1993eadba237e0da0490c6e3fb197880813aef7d /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 2ffb26afa64261139e608bf087a0c1fe24d76d4d (diff) | |
arch/powerpc/perf: Update get_mem_data_src function to use saved values of sier and mmcra regs
During performance monitor interrupt handling, the regs are setup using
perf_read_regs function. Here some of the pt_regs fields is overloaded.
Samples Instruction Event Register (SIER) is loaded into pt_regs,
overloading regs->dar. And regs->dsisr to store MMCRA (Monitor Mode
Control Register A) so that we only need to read these once on each
interrupt.
Update the isa207_get_mem_data_src function to use regs->dar instead of
reading from SPRN_SIER again. Also use regs->dsisr to read the mmcra
value
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250121131621.39054-2-atrajeev@linux.vnet.ibm.com
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions