linux/drivers/dma/sh
Laurent Pinchart be6893e195 dmaengine: rcar-dmac: Disable channel 0 when using IOMMU
A still unconfirmed hardware bug prevents the IPMMU microTLB 0 to be
flushed correctly, resulting in memory corruption. DMAC 0 channel 0 is
connected to microTLB 0 on currently supported platforms, so we can't
use it with the IPMMU. As the IOMMU API operates at the device level we
can't disable it selectively, so ignore channel 0 for now if the device
is part of an IOMMU group.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-16 09:33:35 +05:30
..
Kconfig dmaengine: rcar-dmac: Add Renesas R-Car Gen2 DMA Controller (DMAC) driver 2014-12-23 11:13:01 +02:00
Makefile dmaengine: rcar-dmac: Add Renesas R-Car Gen2 DMA Controller (DMAC) driver 2014-12-23 11:13:01 +02:00
rcar-audmapp.c dmaengine: Remove .owner field for driver 2014-11-06 11:54:18 +05:30
rcar-dmac.c dmaengine: rcar-dmac: Disable channel 0 when using IOMMU 2015-02-16 09:33:35 +05:30
rcar-hpbdma.c dmaengine: rcar-hpbdma: tidyup residue_granularity 2015-01-25 22:37:05 -08:00
shdma-arm.h dmaengine: shdma: Use defines instead of hardcoded numbers 2014-07-15 18:02:29 +09:00
shdma-base.c dmaengine: sh: Split device_control 2014-12-22 12:32:16 +05:30
shdma-of.c dmaengine: Remove .owner field for driver 2014-11-06 11:54:18 +05:30
shdma-r8a73a4.c DMA: shdma: add r8a73a4 DMAC data to the device ID table 2013-08-27 14:26:21 +05:30
shdma.h dmaengine: sh: Rework Kconfig and Makefile 2014-07-31 17:15:45 +05:30
shdmac.c dmaengine: shdmac: extend PM methods 2015-02-12 12:52:18 +05:30
sudmac.c dmaengine: Remove .owner field for driver 2014-11-06 11:54:18 +05:30