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| author | Mary Ruthven <mruthven@chromium.org> | 2021-11-09 16:03:32 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-11-18 04:49:30 +0000 |
| commit | 9422094698f42d9aa8657617f2dc0b04bfa7e336 (patch) | |
| tree | 9baaf63ffdeb90002cb11d83f941b7543ea161de /core | |
| parent | 4e0fe2938e7d5bcd7e88af84279db5d871b36b4b (diff) | |
| download | chrome-ec-9422094698f42d9aa8657617f2dc0b04bfa7e336.tar.gz | |
Revert "core/cortex-m*/task: Record 32-bit exception times"
This reverts commit 9f4852b7e9bbceb1fadb04eb68da43037f0b09d5.
BUG=b:200823466
TEST=make buildall -j
Change-Id: I716e68cf43c2f388efc54534d4a19735dcde0f3b
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3273404
Reviewed-by: Vadim Sukhomlinov <sukhomlinov@chromium.org>
Diffstat (limited to 'core')
| -rw-r--r-- | core/cortex-m/task.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/core/cortex-m/task.c b/core/cortex-m/task.c index b292813f5a..07219d3fbb 100644 --- a/core/cortex-m/task.c +++ b/core/cortex-m/task.c @@ -51,12 +51,8 @@ static const char * const task_names[] = { #ifdef CONFIG_TASK_PROFILING static uint64_t task_start_time; /* Time task scheduling started */ -/* - * We only keep 32-bit values for exception start/end time, to avoid - * accounting errors when we service interrupt when the timer wraps around. - */ -static uint32_t exc_start_time; /* Time of task->exception transition */ -static uint32_t exc_end_time; /* Time of exception->task transition */ +static uint64_t exc_start_time; /* Time of task->exception transition */ +static uint64_t exc_end_time; /* Time of exception->task transition */ static uint64_t exc_total_time; /* Total time in exceptions */ static uint32_t svc_calls; /* Number of service calls */ static uint32_t task_switches; /* Number of times active task changed */ @@ -272,7 +268,7 @@ void svc_handler(int desched, task_id_t resched) task_ *current, *next; #ifdef CONFIG_TASK_PROFILING int exc = get_interrupt_context(); - uint32_t t; + uint64_t t; #endif /* @@ -288,7 +284,7 @@ void svc_handler(int desched, task_id_t resched) * start time explicitly. */ if (exc == 0xb) { - exc_start_time = get_time().le.lo; + exc_start_time = get_time().val; svc_calls++; } #endif @@ -320,7 +316,7 @@ void svc_handler(int desched, task_id_t resched) #ifdef CONFIG_TASK_PROFILING /* Track time in interrupts */ - t = get_time().le.lo; + t = get_time().val; exc_total_time += (t - exc_start_time); /* @@ -364,7 +360,7 @@ void __keep task_start_irq_handler(void *excep_return) * Get time before checking depth, in case this handler is * pre-empted. */ - uint32_t t = get_time().le.lo; + uint64_t t = get_time().val; int irq = get_interrupt_context() - 16; /* @@ -1018,10 +1014,7 @@ void task_clear_fp_used(void) int task_start(void) { #ifdef CONFIG_TASK_PROFILING - timestamp_t t = get_time(); - - task_start_time = t.val; - exc_end_time = t.le.lo; + task_start_time = exc_end_time = get_time().val; #endif start_called = 1; |