This adds dma_parms to macio devices and initializes them with
default values. This will allow pata_macio to setup the appropriate
max segment size for the block layer.
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
---
arch/powerpc/include/asm/macio.h | 1 +
drivers/macintosh/macio_asic.c | 5 +++++
2 files changed, 6 insertions(+)
--- linux-work.orig/arch/powerpc/include/asm/macio.h 2009-11-27
14:38:05.000000000 +1100
+++ linux-work/arch/powerpc/include/asm/macio.h 2009-11-27 14:38:20.000000000
+1100
@@ -39,6 +39,7 @@ struct macio_dev
struct macio_bus *bus; /* macio bus this device is on
*/
struct macio_dev *media_bay; /* Device is part of a media
bay */
struct of_device ofdev;
+ struct device_dma_parameters dma_parms; /* ide needs that */
int n_resources;
struct resource resource[MACIO_DEV_COUNT_RESOURCES];
int n_interrupts;
Index: linux-work/drivers/macintosh/macio_asic.c
===================================================================
--- linux-work.orig/drivers/macintosh/macio_asic.c 2009-11-27
14:39:24.000000000 +1100
+++ linux-work/drivers/macintosh/macio_asic.c 2009-11-27 16:37:39.000000000
+1100
@@ -379,6 +379,11 @@ static struct macio_dev * macio_add_one_
dev->ofdev.dev.parent = parent;
dev->ofdev.dev.bus = &macio_bus_type;
dev->ofdev.dev.release = macio_release_dev;
+ dev->ofdev.dev.dma_parms = &dev->dma_parms;
+
+ /* Standard DMA paremeters */
+ dma_set_max_seg_size(&dev->ofdev.dev, 65536);
+ dma_set_seg_boundary(&dev->ofdev.dev, 0xffffffff);
#ifdef CONFIG_PCI
/* Set the DMA ops to the ones from the PCI device, this could be
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