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| author | Alexander Shishkin <[email protected]> | 2019-08-21 12:47:25 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2019-08-26 10:00:14 +0000 |
| commit | 38bb8d77d0b932a0773b5de2ef42479409314f96 (patch) | |
| tree | 3388d60025a94f2f93ad3194e5fe23749f7abaf2 /tools/perf/util/annotate.c | |
| parent | perf/x86/intel/pt: Use pointer arithmetics instead in ToPA entry calculation (diff) | |
| download | kernel-38bb8d77d0b932a0773b5de2ef42479409314f96.tar.gz kernel-38bb8d77d0b932a0773b5de2ef42479409314f96.zip | |
perf/x86/intel/pt: Split ToPA metadata and page layout
PT uses page sized ToPA tables, where the ToPA table resides at the bottom
and its driver-specific metadata taking up a few words at the top of the
page. The split is currently calculated manually and needs to be redone
every time a field is added to or removed from the metadata structure.
Also, the 32-bit version can be made smaller.
By splitting the table and metadata into separate structures, we are making
the compiler figure out the division of the page.
Signed-off-by: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vince Weaver <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/annotate.c')
0 files changed, 0 insertions, 0 deletions