Reference in a new issue

Blame

Copy permalink

Reference in a new issue

Copy permalink

Andy Shevchenko c36ff8e839 dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer ... commit ee1cdcdae5 upstream. The commit 2895b2cad6 ("dmaengine: dw: fix cyclic transfer callbacks") re-enabled BLOCK interrupts with regard to make cyclic transfers work. However, this change becomes a regression for non-cyclic transfers as interrupt counters under stress test had been grown enormously (approximately per 4-5 bytes in the UART loop back test). Taking into consideration above enable BLOCK interrupts if and only if channel is programmed to perform cyclic transfer. Fixes: 2895b2cad6 ("dmaengine: dw: fix cyclic transfer callbacks") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mans Rullgard <mans@mansr.com> Tested-by: Mans Rullgard <mans@mansr.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Luis Henriques <luis.henriques@canonical.com>		History 2016-03-04 10:26:40 +00:00
..
core.c	dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer	2016-03-04 10:26:40 +00:00
internal.h	dma: dw: split driver to library part and platform code	2013-07-05 11:40:44 +05:30
Kconfig	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
Makefile	dma: dw: add PCI part of the driver	2013-07-05 11:40:45 +05:30
pci.c	dma: remove DEFINE_PCI_DEVICE_TABLE macro	2014-05-21 11:16:18 +05:30
platform.c	dmaengine: dw: append MODULE_ALIAS for platform driver	2015-03-30 11:11:45 +01:00
regs.h	dma: dw: allocate memory in two stages in probe	2014-03-26 11:44:27 +05:30