diff options
| author |   Finn Thain <fthain@telegraphics.com.au> | 2018-06-25 21:46:11 +1000 |
|---|---|---|
| committer |   Geert Uytterhoeven <geert@linux-m68k.org> | 2018-07-23 15:07:12 +0200 |
| commit | a8c5cb994341d4af6d75286fcb66684e53295135 (patch) | |
| tree | ba12a8a3c4c3683601b0388ed8ab5e2c9b63f663 /drivers/nubus | |
| parent | m68k/mac: Enable PDMA for PowerBook 500 series (diff) | |
| download | linux-dev-a8c5cb994341d4af6d75286fcb66684e53295135.tar.xz linux-dev-a8c5cb994341d4af6d75286fcb66684e53295135.zip | |
nubus: Set default dma mask for nubus_board devices
A 32-bit mask is used by default because a NuBus slot has 32
address/data lines and a NuBus board is free to use all of them.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'drivers/nubus')
| -rw-r--r-- | drivers/nubus/bus.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/nubus/bus.c b/drivers/nubus/bus.c index a59b6c4bb5b8..ad3d17c42e23 100644 --- a/drivers/nubus/bus.c +++ b/drivers/nubus/bus.c @@ -5,6 +5,7 @@ // Copyright (C) 2017 Finn Thain #include <linux/device.h> +#include <linux/dma-mapping.h> #include <linux/list.h> #include <linux/nubus.h> #include <linux/seq_file.h> @@ -93,6 +94,8 @@ int nubus_device_register(struct nubus_board *board) board->dev.release = nubus_device_release; board->dev.bus = &nubus_bus_type; dev_set_name(&board->dev, "slot.%X", board->slot); + board->dev.dma_mask = &board->dev.coherent_dma_mask; + dma_set_mask(&board->dev, DMA_BIT_MASK(32)); return device_register(&board->dev); } |