linux_dsm_epyc7002/arch/arm/include/asm/device.h

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

struct dev_archdata {
#ifdef CONFIG_DMABOUNCE
	struct dmabounce_device_info *dmabounce;
#endif
};

struct pdev_archdata {
};

#endif
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 13:18:39 +07:00			`/*`
			`* Arch specific extensions to struct device`
			`*`
			`* This file is released under the GPLv2`
			`*/`
[ARM] Add a reference from struct device to the dma bounce info dmabounce keeps a per-device structure, and finds the correct structure by walking a list. Since architectures can now add fields to struct device, we can attach this structure direct to the struct device, thereby eliminating the code to search the list. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 2007-02-12 17:28:24 +07:00			`#ifndef ASMARM_DEVICE_H`
			`#define ASMARM_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 13:18:39 +07:00
[ARM] Add a reference from struct device to the dma bounce info dmabounce keeps a per-device structure, and finds the correct structure by walking a list. Since architectures can now add fields to struct device, we can attach this structure direct to the struct device, thereby eliminating the code to search the list. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 2007-02-12 17:28:24 +07:00			`struct dev_archdata {`
			`#ifdef CONFIG_DMABOUNCE`
			`struct dmabounce_device_info *dmabounce;`
			`#endif`
			`};`

Driver Core: Add platform device arch data V3 Allow architecture specific data in struct platform_device V3. With this patch struct pdev_archdata is added to struct platform_device, similar to struct dev_archdata in found in struct device. Useful for architecture code that needs to keep extra data associated with each platform device. Struct pdev_archdata is different from dev.platform_data, the convention is that dev.platform_data points to driver-specific data. It may or may not be required by the driver. The format of this depends on driver but is the same across architectures. The structure pdev_archdata is a place for architecture specific data. This data is handled by architecture specific code (for example runtime PM), and since it is architecture specific it should _never_ be touched by device driver code. Exactly like struct dev_archdata but for platform devices. [rjw: This change is for power management mostly and that's why it goes through the suspend tree.] Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> 2009-07-08 18:21:31 +07:00			`struct pdev_archdata {`
			`};`

[ARM] Add a reference from struct device to the dma bounce info dmabounce keeps a per-device structure, and finds the correct structure by walking a list. Since architectures can now add fields to struct device, we can attach this structure direct to the struct device, thereby eliminating the code to search the list. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 2007-02-12 17:28:24 +07:00			`#endif`