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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-09-09 18:39:28 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-09-15 21:43:31 +0100 |
| commit | a42c362980430be74b77ec8f374964f61062379f (patch) | |
| tree | f49ca2d6f045d49e4cd659a9f8cedb5824481676 /drivers/i2c/algos/i2c-algo-pca.c | |
| parent | a67e1ce145785d884b29b17e4d82a6ecd67bb97a (diff) | |
ARM: Add irqtime accounting support
Add support for irq time accounting. This commit prepares ARM by adding
the call to enable_sched_clock_irqtime() in sched_clock(). We introduce
a new kernel parameter - irqtime - which takes an integer. -1 for auto,
0 for disabled, and 1 for enabled. Auto mode selects IRQ accounting if
we have a sched_clock() tick rate greater than 1MHz.
Frederic Weisbecker is working on a patch set which moves the
IRQ_TIME_ACCOUNTING into arch/, so that part is not incorporated into
this patch; this facility becomes available on ARM only when both this
patch and Frederic's patches are merged.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/i2c/algos/i2c-algo-pca.c')
0 files changed, 0 insertions, 0 deletions