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sched: Implement generic sleep mechanism based on tasks pending

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Track when tasks are pending and spin in irq_wait() when no tasks are
pending.  This improves the mechanism for sleeping the processor -
it's simpler for the board specific code and it reduces the
possibility of the processor sleeping when tasks are busy.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-08-07 12:33:08 -04:00
parent a9982beacf
commit 2c272f99a3
9 changed files with 60 additions and 80 deletions
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2
src/basecmd.h
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@ -9,7 +9,7 @@ void move_request_size(int size);
void *oid_lookup(uint8_t oid, void *type);
void *oid_alloc(uint8_t oid, void *type, uint16_t size);
void *oid_next(uint8_t *i, void *type);
void stats_note_sleep(uint32_t sleep_time);
void stats_update(uint32_t start, uint32_t cur);
#define foreach_oid(pos,data,oidtype) \
for (pos=-1; (data=oid_next(&pos, oidtype)); )