WSL2-Linux-Kernel/arch/powerpc/include/asm/device.h

/*
 * Arch specific extensions to struct device
 *
 * This file is released under the GPLv2
 */
#ifndef _ASM_POWERPC_DEVICE_H
#define _ASM_POWERPC_DEVICE_H

struct dma_mapping_ops;
struct device_node;

struct dev_archdata {
	/* Optional pointer to an OF device node */
	struct device_node	*of_node;

	/* DMA operations on that device */
	struct dma_mapping_ops	*dma_ops;
	void			*dma_data;
};

static inline void dev_archdata_set_node(struct dev_archdata *ad,
					 struct device_node *np)
{
	ad->of_node = np;
}

static inline struct device_node *
dev_archdata_get_node(const struct dev_archdata *ad)
{
	return ad->of_node;
}

#endif /* _ASM_POWERPC_DEVICE_H */
Driver core: add dev_archdata to struct device 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> 2006-11-11 09:18:39 +03:00			`/*`
			`* Arch specific extensions to struct device`
			`*`
			`* This file is released under the GPLv2`
			`*/`
[POWERPC] Refactor 64 bits DMA operations This patch completely refactors DMA operations for 64 bits powerpc. 32 bits is untouched for now. We use the new dev_archdata structure to add the dma operations pointer and associated data to struct device. While at it, we also add the OF node pointer and numa node. In the future, we might want to look into merging that with pci_dn as well. The old vio, pci-iommu and pci-direct DMA ops are gone. They are now replaced by a set of generic iommu and direct DMA ops (non PCI specific) that can be used by bus types. The toplevel implementation is now inline. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org> 2006-11-11 09:25:02 +03:00			`#ifndef _ASM_POWERPC_DEVICE_H`
			`#define _ASM_POWERPC_DEVICE_H`
Driver core: add dev_archdata to struct device 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> 2006-11-11 09:18:39 +03:00
[POWERPC] Refactor 64 bits DMA operations This patch completely refactors DMA operations for 64 bits powerpc. 32 bits is untouched for now. We use the new dev_archdata structure to add the dma operations pointer and associated data to struct device. While at it, we also add the OF node pointer and numa node. In the future, we might want to look into merging that with pci_dn as well. The old vio, pci-iommu and pci-direct DMA ops are gone. They are now replaced by a set of generic iommu and direct DMA ops (non PCI specific) that can be used by bus types. The toplevel implementation is now inline. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org> 2006-11-11 09:25:02 +03:00			`struct dma_mapping_ops;`
			`struct device_node;`

			`struct dev_archdata {`
			`/* Optional pointer to an OF device node */`
			`struct device_node *of_node;`

			`/* DMA operations on that device */`
			`struct dma_mapping_ops *dma_ops;`
			`void *dma_data;`
			`};`

powerpc and sparc: Introduce dev_archdata node accessors The name of the device_node field differ across the platforms, so we have to implement inlined accessors. This is needed to avoid ugly #ifdef in the generic code. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org> 2008-11-28 12:13:23 +03:00			`static inline void dev_archdata_set_node(struct dev_archdata *ad,`
			`struct device_node *np)`
			`{`
			`ad->of_node = np;`
			`}`

			`static inline struct device_node *`
			`dev_archdata_get_node(const struct dev_archdata *ad)`
			`{`
			`return ad->of_node;`
			`}`

[POWERPC] Refactor 64 bits DMA operations This patch completely refactors DMA operations for 64 bits powerpc. 32 bits is untouched for now. We use the new dev_archdata structure to add the dma operations pointer and associated data to struct device. While at it, we also add the OF node pointer and numa node. In the future, we might want to look into merging that with pci_dn as well. The old vio, pci-iommu and pci-direct DMA ops are gone. They are now replaced by a set of generic iommu and direct DMA ops (non PCI specific) that can be used by bus types. The toplevel implementation is now inline. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org> 2006-11-11 09:25:02 +03:00			`#endif /* _ASM_POWERPC_DEVICE_H */`