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| author | Ada Christine <adachristine18@gmail.com> | 2022-02-18 01:31:03 +0000 |
|---|---|---|
| committer | Ada Christine <adachristine18@gmail.com> | 2022-02-18 01:31:03 +0000 |
| commit | 606b7dc226cb51077c016a8ea5fa862ac6ce1db4 (patch) | |
| tree | 06188c7da4d7ce3ba53aba3ebf8be3a98665aed1 /kc/core/pit8253.c | |
| parent | 67d43fd64099a8ce51ad107e6f27bbdc6a52d852 (diff) | |
bug fixes
- needed an atomic_load() when getting the count in
pic8253_nanoseconds_elapsed()
- i was deleting half the bits of the outgoing task's stack in
cpu_task.S (oops)
- updated .gdbint. TODO: automate laoding section offsets correctly
Diffstat (limited to 'kc/core/pit8253.c')
| -rw-r--r-- | kc/core/pit8253.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kc/core/pit8253.c b/kc/core/pit8253.c index 4728020..6f6256a 100644 --- a/kc/core/pit8253.c +++ b/kc/core/pit8253.c @@ -21,7 +21,7 @@ static void pit8253_set_divisor(uint16_t divisor); -static atomic_uint_fast64_t count = 0; +static volatile atomic_uint_fast64_t count = 0; static uint16_t divisor = 0; const struct timer_source pit8253_timer_source = @@ -82,7 +82,7 @@ uint32_t pit8253_get_frequency(void) uint64_t pit8253_nanoseconds_elapsed(void) { - return pit8253_nanoseconds_delta() * count; + return pit8253_nanoseconds_delta() * atomic_load(&count); } uint64_t pit8253_nanoseconds_delta(void) |