powerpc/pseries/htmdump: Add htm start support to htmdump module

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Support starting of Hardware Trace Macro (HTM) function
via debugfs interface. Under debugfs folder
"/sys/kernel/debug/powerpc/htmdump", add file "htmstart".
The interface allows starting of htm via this file by
writing value "1". Also allows stopping of htm tracing by
writing value "0" to this file. Any other value returns
-EINVAL.

Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250420180844.53128-4-atrajeev@linux.ibm.com

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Athira Rajeev 2025-04-20 23:38:38 +05:30 • committed by Madhavan Srinivasan

parent c6edd034e3

commit e03e4b12de

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arch/powerpc/platforms/pseries/htmdump.c

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