diff options
| author | dp-arm <dimitris.papastamos@arm.com> | 2016-11-15 13:25:30 +0000 |
|---|---|---|
| committer | dp-arm <dimitris.papastamos@arm.com> | 2016-12-14 09:53:14 +0000 |
| commit | 7941816a3428f015a9f4a6c5dc978b4fca568f4b (patch) | |
| tree | 0d25b1c07ffb685ec4f2de561ccb44e76337b2b4 /include/lib | |
| parent | 1b5fa6ef1082ffb9979df4aad91525eda571eb50 (diff) | |
Add two timestamps to measure PSCI cache flush overhead
Testing showed that the time spent in a cluster power down
operation is dominated by cache flushes. Add two more timestamps
in runtime instrumentation to keep track of the time spent
flushing the L1/L2 caches.
Change-Id: I4c5a04e7663543225a85d3c6b271d7b706deffc4
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
Diffstat (limited to 'include/lib')
| -rw-r--r-- | include/lib/runtime_instr.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/lib/runtime_instr.h b/include/lib/runtime_instr.h index d4090027..4d05ba4b 100644 --- a/include/lib/runtime_instr.h +++ b/include/lib/runtime_instr.h @@ -31,11 +31,13 @@ #ifndef __RUNTIME_INSTR_H__ #define __RUNTIME_INSTR_H__ -#define RT_INSTR_TOTAL_IDS 4 #define RT_INSTR_ENTER_PSCI 0 #define RT_INSTR_EXIT_PSCI 1 #define RT_INSTR_ENTER_HW_LOW_PWR 2 #define RT_INSTR_EXIT_HW_LOW_PWR 3 +#define RT_INSTR_ENTER_CFLUSH 4 +#define RT_INSTR_EXIT_CFLUSH 5 +#define RT_INSTR_TOTAL_IDS 6 #ifndef __ASSEMBLY__ PMF_DECLARE_CAPTURE_TIMESTAMP(rt_instr_svc) |