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powerpc/macio: Add dma_parms support to macio

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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 <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt 2009-12-01 14:36:27 +00:00
parent 7fb19ea054
commit 128b4a0ef7
2 changed files with 6 additions and 0 deletions
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1
arch/powerpc/include/asm/macio.h
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@ -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;

5
drivers/macintosh/macio_asic.c
View File

@ -379,6 +379,11 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
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