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| author | Adrian Hunter <[email protected]> | 2021-02-05 19:53:48 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2021-02-18 16:03:37 -0300 |
| commit | 20aa39708a5999b7921b27482a756766272286ac (patch) | |
| tree | 66de40f6014defdcb5cfc0153ba30bf2164ff433 /drivers/platform/surface/aggregator/ssh_parser.c | |
| parent | 03fb0f859b45d1eb05c984ab4bd3bef67e45ede2 (diff) | |
perf intel-pt: Fix premature IPC
The code assumed a change in cycle count means accurate IPC. That is not
correct, for example when sampling both branches and instructions, or at
a FUP packet (which is not CYC-eligible) address. Fix by using an explicit
flag to indicate when IPC can be sampled.
Fixes: 5b1dc0fd1da06 ("perf intel-pt: Add support for samples to contain IPC ratio")
Signed-off-by: Adrian Hunter <[email protected]>
Reviewed-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'drivers/platform/surface/aggregator/ssh_parser.c')
0 files changed, 0 insertions, 0 deletions