diff options
| author | nagendra modadugu <ngm@google.com> | 2016-07-17 20:50:45 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-07-21 17:32:28 -0700 |
| commit | f623eaf077a4050cd7ae6dd3c96525325060d647 (patch) | |
| tree | afc692c9a24d7e4659ee97fdb15ba4e4356e65b7 /common/timer.c | |
| parent | 64397fdd5b734b0ec6346e325893291a1f446291 (diff) | |
| download | chrome-ec-f623eaf077a4050cd7ae6dd3c96525325060d647.tar.gz | |
timer: fix clock() implementation to match TPM2 library expectations
The clock() function was introduced to provide free running clock for
the TPM2 library, which expects this clock to run with a millisecond
resolution.
This patch fixes the bug where the function in fact was returning the
clock running at a microsecond resolution.
BRANCH=none
BUG=chrome-os-partner:43025,chrome-os-partner:47524
BUG=chrome-os-partner:50115
TEST=with the appropriate modification of the user of this function
all lockout related TCG tests pass.
Signed-off-by: nagendra modadugu <ngm@google.com>
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/361180
(cherry picked from commit b4e78b309900402499b8742199fb4536570d3000)
(cherry picked from commit fefaa02a4f2c807a3ad50137bd7dba7f5f081c31)
Change-Id: Ic02fffca610426d22e58609eb8c3693aec96ad5c
Reviewed-on: https://chromium-review.googlesource.com/362118
Diffstat (limited to 'common/timer.c')
| -rw-r--r-- | common/timer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/common/timer.c b/common/timer.c index 289314e74a..b1f452f611 100644 --- a/common/timer.c +++ b/common/timer.c @@ -185,7 +185,8 @@ timestamp_t get_time(void) clock_t clock(void) { - return (clock_t) __hw_clock_source_read(); + /* __hw_clock_source_read() returns a microsecond resolution timer.*/ + return (clock_t) __hw_clock_source_read() / 1000; } void force_time(timestamp_t ts) |