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Driver core: add dev_archdata to struct device

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Add arch specific dev_archdata to struct device

Adds an arch specific struct dev_arch to struct device. This enables
architecture to add specific fields to every device in the system, like
DMA operation pointers, NUMA node ID, firmware specific data, etc...

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Andi Kleen <ak@suse.de>
Acked-By: David Howells <dhowells@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Benjamin Herrenschmidt
2006-11-11 17:18:39 +11:00
committed by Greg Kroah-Hartman
parent d80f19fab8
commit c6dbaef22a
27 changed files with 190 additions and 0 deletions
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3
include/linux/device.h
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@@ -21,6 +21,7 @@
#include <linux/pm.h>
#include <asm/semaphore.h>
#include <asm/atomic.h>
#include <asm/device.h>
#define DEVICE_NAME_SIZE 50
#define DEVICE_NAME_HALF __stringify(20) /* Less than half to accommodate slop */
@@ -383,6 +384,8 @@ struct device {
struct dma_coherent_mem *dma_mem; /* internal for coherent mem
override */
/* arch specific additions */
struct dev_archdata archdata;
/* class_device migration path */
struct list_head node;