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authorRik van Riel <[email protected]>2015-02-10 15:27:50 -0500
committerFrederic Weisbecker <[email protected]>2015-03-09 15:42:52 +0100
commit3aab4f50bff89bdea5066a05d4f3c5fa25bc37c7 (patch)
treebb83901091481a72fbd5327718e8cbb079a91d3e /tools/perf/scripts/python
parentc467ea763fd5d8795b7d1b5a78eb94b6ad8f66ad (diff)
context_tracking: Generalize context tracking APIs to support user and guest
Generalize the context tracking APIs to support various nature of contexts. This is performed by splitting out the mechanism from context_tracking_user_enter and context_tracking_user_exit into context_tracking_enter and context_tracking_exit. The nature of the context we track is now detailed in a ctx_state parameter pushed to these APIs, allowing the same functions to not just track kernel <> user space switching, but also kernel <> guest transitions. But leave the old functions in order to avoid breaking ARM, which calls these functions from assembler code, and cannot easily use C enum parameters. Reviewed-by: Paul E. McKenney <[email protected]> Signed-off-by: Rik van Riel <[email protected]> Cc: Paul E. McKenney <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Will deacon <[email protected]> Cc: Marcelo Tosatti <[email protected]> Cc: Christian Borntraeger <[email protected]> Cc: Luiz Capitulino <[email protected]> Cc: Paolo Bonzini <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]>
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