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authorAbhishek Dubey <adubey@linux.ibm.com>2025-01-13 11:40:38 -0500
committerMadhavan Srinivasan <maddy@linux.ibm.com>2025-02-11 11:35:45 +0530
commit81c3d637c30f82966e551452e061d6e7b0d8df37 (patch)
treec5f27464e646b9a6924b90d686690c608eb277ad /tools/perf/scripts/python/export-to-postgresql.py
parent708220ae50251212d8d33683c7b48eb5c4db237e (diff)
powerpc/pseries: Export hardware trace macro dump via debugfs
This patch adds debugfs interface to export Hardware Trace Macro (HTM) function data in a LPAR. New hypervisor call "H_HTM" has been defined to setup, configure, control and dump the HTM data. This patch supports only dumping of HTM data in a LPAR. New debugfs folder called "htmdump" has been added under /sys/kernel/debug/arch path which contains files need to pass required parameters for the H_HTM dump function. New Kconfig option called "CONFIG_HTMDUMP" is added in platform/pseries for the same. With this module loaded, list of files in debugfs path /sys/kernel/debug/powerpc/htmdump coreindexonchip htmtype nodalchipindex nodeindex trace Signed-off-by: Abhishek Dubey <adubey@linux.ibm.com> Co-developed-by: Madhavan Srinivasan <maddy@linux.ibm.com> Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20250113164039.302017-2-adubey@linux.ibm.com
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