Dmitry Osipenko 6697255f23 dmaengine: tegra-apb: Improve DMA synchronization
Boot CPU0 always handles DMA interrupts and under some rare circumstances
it could stuck in uninterruptible state for a significant time (like in a
case of KASAN + NFS root). In this case sibling CPU, which waits for DMA
transfer completion, will get a DMA transfer timeout. In order to handle
this rare condition, interrupt status needs to be polled until interrupt
is handled.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200319212321.3297-2-digetx@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-03-23 12:06:24 +05:30
..
2020-02-07 12:51:54 -08:00
2020-01-29 18:53:37 -08:00
2020-02-06 06:11:50 +00:00
2020-02-08 14:04:19 -08:00
2020-02-08 14:04:19 -08:00
2020-02-08 14:17:27 -08:00
2020-02-08 14:17:27 -08:00
2020-02-08 14:04:19 -08:00
2020-02-08 14:04:19 -08:00
2020-01-27 13:03:00 -08:00
2020-02-08 14:04:19 -08:00
2020-02-09 16:05:50 -08:00
2020-01-30 08:04:01 -08:00
2020-02-08 14:04:19 -08:00
2020-02-04 07:17:41 +00:00
2020-01-31 14:40:36 -08:00
2020-02-05 17:49:54 +00:00
2020-02-04 13:06:46 +00:00
2020-02-04 07:17:41 +00:00
2020-02-04 07:17:41 +00:00
2020-01-27 13:03:00 -08:00
2020-02-06 06:15:23 +00:00
2020-02-08 14:04:19 -08:00
2020-01-27 13:03:00 -08:00
2020-02-06 14:17:38 +00:00
2020-02-08 13:55:25 -08:00
2020-02-03 14:51:57 +00:00
2020-02-04 07:17:41 +00:00
2020-02-08 17:24:41 -08:00
2020-02-08 14:04:19 -08:00
2020-01-29 18:16:16 -08:00
2020-01-31 11:28:31 -08:00
2020-02-08 14:04:19 -08:00
2020-02-09 16:05:50 -08:00
2020-02-03 22:22:05 +00:00
2020-02-09 16:05:50 -08:00
2020-01-29 10:35:54 -08:00
2020-01-29 10:35:54 -08:00
2020-02-07 12:30:16 -08:00
2020-02-05 17:44:14 +00:00
2020-02-09 16:05:50 -08:00