From: Benjamin Herrenschmidt Date: Tue, 1 Dec 2009 14:36:27 +0000 (+0000) Subject: powerpc/macio: Add dma_parms support to macio X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=128b4a0ef74e8d48033513e41a413087ba30e36b;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git powerpc/macio: Add dma_parms support to macio 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 --- diff --git a/arch/powerpc/include/asm/macio.h b/arch/powerpc/include/asm/macio.h index 2b7b39294a6a..86d5fed1c49f 100644 --- a/arch/powerpc/include/asm/macio.h +++ b/arch/powerpc/include/asm/macio.h @@ -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; diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index 5200acfc9d38..26a303a1d1ab 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -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