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authorPeter Ujfalusi <[email protected]>2016-06-07 11:19:44 +0300
committerVinod Koul <[email protected]>2016-06-08 08:57:29 +0530
commit2e4ed0879eb15230cb58c3915ac51620480375c3 (patch)
tree126f4b2c2cbd3c90f4eb17872a56a07b4b791424 /tools/perf/scripts/python/call-graph-from-postgresql.py
parent1a695a905c18548062509178b98bc91e67510864 (diff)
dmaengine: edma: Use early completion for intermediate paRAM set in slave_sg
The driver limits the physical number of paRAM slots to be used by channels. If the transfer needs more slots (more SGs) then the transfer is broken up to smaller chunks. When the chunk is finished the driver will rewrite the physical slots and continues the transfer. This set up time can take some time and we might miss DMA events. If the intermediate set completion is using early completion (the interrupt will happen when the last slot is issued to the TPTC and not when the transfer is finished by the TPTC) we will have a bit more time to update the paRAM slots and less likely to have missed events. Signed-off-by: Peter Ujfalusi <[email protected]> Signed-off-by: Vinod Koul <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
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