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| author | Linus Walleij <linus.walleij@linaro.org> | 2017-06-11 23:26:16 +0200 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2017-06-14 12:02:14 +0200 |
| commit | 740e237add571a125f1c2a110ba6aa77db7d2c69 (patch) | |
| tree | 17294fd61f7132e7d4e8ca90826a7318f6f600de /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 8b7a3b568814a8e36d2910dd74465b0215aa0a31 (diff) | |
clocksource/drivers/fttmr010: Optimize sched_clock()
The sched_clock() call should be really fast so we want to
avoid an extra if() clause on the read path if possible.
Implement two sched_clock_read() functions, one if the timer
counts up and one if it counts down. Incidentally this also
mirrors how clocksource_mmio_init() works and make things
simple and easy to understand.
Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Andrew Jeffery <andrew@aj.id.au>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions