soc: ti: knav_qmss: Use percpu instead atomic for stats counter

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Hwqueue has collect statistics in heavy use queue_pop/queu_push functions
for cache efficiency and make push/pop faster use percpu variables.
For performance reasons, driver should keep descriptor in software handler
as short as possible and quickly return it back to hardware queue.
Descriptors coming into driver from hardware after pop and return back
by push to reduce descriptor lifetime in driver collect statistics on percpu.

Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>

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Vasyl Gomonovych 2018-04-20 10:20:36 -07:00 • committed by Santosh Shilimkar

parent 8af70cd2ca

commit bc3acbb875

2 changed files with 48 additions and 26 deletions

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14

drivers/soc/ti/knav_qmss.h

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60

drivers/soc/ti/knav_qmss_queue.c

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