cregit-Linux how code gets into the kernel

Release 4.12 include/linux/iommu.h

Directory: include/linux
/*
 * Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
 * Author: Joerg Roedel <joerg.roedel@amd.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#ifndef __LINUX_IOMMU_H

#define __LINUX_IOMMU_H

#include <linux/scatterlist.h>
#include <linux/device.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/of.h>


#define IOMMU_READ	(1 << 0)

#define IOMMU_WRITE	(1 << 1)

#define IOMMU_CACHE	(1 << 2) 
/* DMA cache coherency */

#define IOMMU_NOEXEC	(1 << 3)

#define IOMMU_MMIO	(1 << 4) 
/* e.g. things like MSI doorbells */
/*
 * Where the bus hardware includes a privilege level as part of its access type
 * markings, and certain devices are capable of issuing transactions marked as
 * either 'supervisor' or 'user', the IOMMU_PRIV flag requests that the other
 * given permission flags only apply to accesses at the higher privilege level,
 * and that unprivileged transactions should have as little access as possible.
 * This would usually imply the same permissions as kernel mappings on the CPU,
 * if the IOMMU page table format is equivalent.
 */

#define IOMMU_PRIV	(1 << 5)

struct iommu_ops;
struct iommu_group;
struct bus_type;
struct device;
struct iommu_domain;
struct notifier_block;

/* iommu fault flags */

#define IOMMU_FAULT_READ	0x0

#define IOMMU_FAULT_WRITE	0x1


typedef int (*iommu_fault_handler_t)(struct iommu_domain *,
			struct device *, unsigned long, int, void *);


struct iommu_domain_geometry {
	
dma_addr_t aperture_start; /* First address that can be mapped    */
	
dma_addr_t aperture_end;   /* Last address that can be mapped     */
	
bool force_aperture;       /* DMA only allowed in mappable range? */
};

/* Domain feature flags */

#define __IOMMU_DOMAIN_PAGING	(1U << 0)  
/* Support for iommu_map/unmap */

#define __IOMMU_DOMAIN_DMA_API	(1U << 1)  
/* Domain for use in DMA-API
                                              implementation              */

#define __IOMMU_DOMAIN_PT	(1U << 2)  
/* Domain is identity mapped   */

/*
 * This are the possible domain-types
 *
 *      IOMMU_DOMAIN_BLOCKED    - All DMA is blocked, can be used to isolate
 *                                devices
 *      IOMMU_DOMAIN_IDENTITY   - DMA addresses are system physical addresses
 *      IOMMU_DOMAIN_UNMANAGED  - DMA mappings managed by IOMMU-API user, used
 *                                for VMs
 *      IOMMU_DOMAIN_DMA        - Internally used for DMA-API implementations.
 *                                This flag allows IOMMU drivers to implement
 *                                certain optimizations for these domains
 */

#define IOMMU_DOMAIN_BLOCKED	(0U)

#define IOMMU_DOMAIN_IDENTITY	(__IOMMU_DOMAIN_PT)

#define IOMMU_DOMAIN_UNMANAGED	(__IOMMU_DOMAIN_PAGING)

#define IOMMU_DOMAIN_DMA	(__IOMMU_DOMAIN_PAGING |        \
                                 __IOMMU_DOMAIN_DMA_API)


struct iommu_domain {
	
unsigned type;
	
const struct iommu_ops *ops;
	
unsigned long pgsize_bitmap;	/* Bitmap of page sizes in use */
	
iommu_fault_handler_t handler;
	
void *handler_token;
	
struct iommu_domain_geometry geometry;
	
void *iova_cookie;
};


enum iommu_cap {
	
IOMMU_CAP_CACHE_COHERENCY,	/* IOMMU can enforce cache coherent DMA
                                           transactions */
	
IOMMU_CAP_INTR_REMAP,		/* IOMMU supports interrupt isolation */
	
IOMMU_CAP_NOEXEC,		/* IOMMU_NOEXEC flag */
};

/*
 * Following constraints are specifc to FSL_PAMUV1:
 *  -aperture must be power of 2, and naturally aligned
 *  -number of windows must be power of 2, and address space size
 *   of each window is determined by aperture size / # of windows
 *  -the actual size of the mapped region of a window must be power
 *   of 2 starting with 4KB and physical address must be naturally
 *   aligned.
 * DOMAIN_ATTR_FSL_PAMUV1 corresponds to the above mentioned contraints.
 * The caller can invoke iommu_domain_get_attr to check if the underlying
 * iommu implementation supports these constraints.
 */


enum iommu_attr {
	
DOMAIN_ATTR_GEOMETRY,
	
DOMAIN_ATTR_PAGING,
	
DOMAIN_ATTR_WINDOWS,
	
DOMAIN_ATTR_FSL_PAMU_STASH,
	
DOMAIN_ATTR_FSL_PAMU_ENABLE,
	
DOMAIN_ATTR_FSL_PAMUV1,
	
DOMAIN_ATTR_NESTING,	/* two stages of translation */
	
DOMAIN_ATTR_MAX,
};

/* These are the possible reserved region types */

enum iommu_resv_type {
	/* Memory regions which must be mapped 1:1 at all times */
	
IOMMU_RESV_DIRECT,
	/* Arbitrary "never map this or give it to a device" address ranges */
	
IOMMU_RESV_RESERVED,
	/* Hardware MSI region (untranslated) */
	
IOMMU_RESV_MSI,
	/* Software-managed MSI translation window */
	
IOMMU_RESV_SW_MSI,
};

/**
 * struct iommu_resv_region - descriptor for a reserved memory region
 * @list: Linked list pointers
 * @start: System physical start address of the region
 * @length: Length of the region in bytes
 * @prot: IOMMU Protection flags (READ/WRITE/...)
 * @type: Type of the reserved region
 */

struct iommu_resv_region {
	
struct list_head	list;
	
phys_addr_t		start;
	
size_t			length;
	
int			prot;
	
enum iommu_resv_type	type;
};

#ifdef CONFIG_IOMMU_API

/**
 * struct iommu_ops - iommu ops and capabilities
 * @capable: check capability
 * @domain_alloc: allocate iommu domain
 * @domain_free: free iommu domain
 * @attach_dev: attach device to an iommu domain
 * @detach_dev: detach device from an iommu domain
 * @map: map a physically contiguous memory region to an iommu domain
 * @unmap: unmap a physically contiguous memory region from an iommu domain
 * @map_sg: map a scatter-gather list of physically contiguous memory chunks
 * to an iommu domain
 * @iova_to_phys: translate iova to physical address
 * @add_device: add device to iommu grouping
 * @remove_device: remove device from iommu grouping
 * @device_group: find iommu group for a particular device
 * @domain_get_attr: Query domain attributes
 * @domain_set_attr: Change domain attributes
 * @get_resv_regions: Request list of reserved regions for a device
 * @put_resv_regions: Free list of reserved regions for a device
 * @apply_resv_region: Temporary helper call-back for iova reserved ranges
 * @domain_window_enable: Configure and enable a particular window for a domain
 * @domain_window_disable: Disable a particular window for a domain
 * @domain_set_windows: Set the number of windows for a domain
 * @domain_get_windows: Return the number of windows for a domain
 * @of_xlate: add OF master IDs to iommu grouping
 * @pgsize_bitmap: bitmap of all possible supported page sizes
 */

struct iommu_ops {
	
bool (*capable)(enum iommu_cap);

	/* Domain allocation and freeing by the iommu driver */
	
struct iommu_domain *(*domain_alloc)(unsigned iommu_domain_type);
	
void (*domain_free)(struct iommu_domain *);

	
int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
	
void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
	
int (*map)(struct iommu_domain *domain, unsigned long iova,
		   phys_addr_t paddr, size_t size, int prot);
	
size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
		     size_t size);
	
size_t (*map_sg)(struct iommu_domain *domain, unsigned long iova,
			 struct scatterlist *sg, unsigned int nents, int prot);
	
phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
	
int (*add_device)(struct device *dev);
	
void (*remove_device)(struct device *dev);
	
struct iommu_group *(*device_group)(struct device *dev);
	
int (*domain_get_attr)(struct iommu_domain *domain,
			       enum iommu_attr attr, void *data);
	
int (*domain_set_attr)(struct iommu_domain *domain,
			       enum iommu_attr attr, void *data);

	/* Request/Free a list of reserved regions for a device */
	
void (*get_resv_regions)(struct device *dev, struct list_head *list);
	
void (*put_resv_regions)(struct device *dev, struct list_head *list);
	
void (*apply_resv_region)(struct device *dev,
				  struct iommu_domain *domain,
				  struct iommu_resv_region *region);

	/* Window handling functions */
	
int (*domain_window_enable)(struct iommu_domain *domain, u32 wnd_nr,
				    phys_addr_t paddr, u64 size, int prot);
	
void (*domain_window_disable)(struct iommu_domain *domain, u32 wnd_nr);
	/* Set the number of windows per domain */
	
int (*domain_set_windows)(struct iommu_domain *domain, u32 w_count);
	/* Get the number of windows per domain */
	
u32 (*domain_get_windows)(struct iommu_domain *domain);

	
int (*of_xlate)(struct device *dev, struct of_phandle_args *args);

	
unsigned long pgsize_bitmap;
};

/**
 * struct iommu_device - IOMMU core representation of one IOMMU hardware
 *                       instance
 * @list: Used by the iommu-core to keep a list of registered iommus
 * @ops: iommu-ops for talking to this iommu
 * @dev: struct device for sysfs handling
 */

struct iommu_device {
	
struct list_head list;
	
const struct iommu_ops *ops;
	
struct fwnode_handle *fwnode;
	
struct device dev;
};

int  iommu_device_register(struct iommu_device *iommu);
void iommu_device_unregister(struct iommu_device *iommu);
int  iommu_device_sysfs_add(struct iommu_device *iommu,
			    struct device *parent,
			    const struct attribute_group **groups,
			    const char *fmt, ...) __printf(4, 5);
void iommu_device_sysfs_remove(struct iommu_device *iommu);
int  iommu_device_link(struct iommu_device   *iommu, struct device *link);
void iommu_device_unlink(struct iommu_device *iommu, struct device *link);


static inline void iommu_device_set_ops(struct iommu_device *iommu, const struct iommu_ops *ops) { iommu->ops = ops; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel24100.00%1100.00%
Total24100.00%1100.00%


static inline void iommu_device_set_fwnode(struct iommu_device *iommu, struct fwnode_handle *fwnode) { iommu->fwnode = fwnode; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel23100.00%1100.00%
Total23100.00%1100.00%

#define IOMMU_GROUP_NOTIFY_ADD_DEVICE 1 /* Device added */ #define IOMMU_GROUP_NOTIFY_DEL_DEVICE 2 /* Pre Device removed */ #define IOMMU_GROUP_NOTIFY_BIND_DRIVER 3 /* Pre Driver bind */ #define IOMMU_GROUP_NOTIFY_BOUND_DRIVER 4 /* Post Driver bind */ #define IOMMU_GROUP_NOTIFY_UNBIND_DRIVER 5 /* Pre Driver unbind */ #define IOMMU_GROUP_NOTIFY_UNBOUND_DRIVER 6 /* Post Driver unbind */ extern int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops); extern bool iommu_present(struct bus_type *bus); extern bool iommu_capable(struct bus_type *bus, enum iommu_cap cap); extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus); extern struct iommu_group *iommu_group_get_by_id(int id); extern void iommu_domain_free(struct iommu_domain *domain); extern int iommu_attach_device(struct iommu_domain *domain, struct device *dev); extern void iommu_detach_device(struct iommu_domain *domain, struct device *dev); extern struct iommu_domain *iommu_get_domain_for_dev(struct device *dev); extern int iommu_map(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, size_t size, int prot); extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size); extern size_t default_iommu_map_sg(struct iommu_domain *domain, unsigned long iova, struct scatterlist *sg,unsigned int nents, int prot); extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova); extern void iommu_set_fault_handler(struct iommu_domain *domain, iommu_fault_handler_t handler, void *token); extern void iommu_get_resv_regions(struct device *dev, struct list_head *list); extern void iommu_put_resv_regions(struct device *dev, struct list_head *list); extern int iommu_request_dm_for_dev(struct device *dev); extern struct iommu_resv_region * iommu_alloc_resv_region(phys_addr_t start, size_t length, int prot, enum iommu_resv_type type); extern int iommu_get_group_resv_regions(struct iommu_group *group, struct list_head *head); extern int iommu_attach_group(struct iommu_domain *domain, struct iommu_group *group); extern void iommu_detach_group(struct iommu_domain *domain, struct iommu_group *group); extern struct iommu_group *iommu_group_alloc(void); extern void *iommu_group_get_iommudata(struct iommu_group *group); extern void iommu_group_set_iommudata(struct iommu_group *group, void *iommu_data, void (*release)(void *iommu_data)); extern int iommu_group_set_name(struct iommu_group *group, const char *name); extern int iommu_group_add_device(struct iommu_group *group, struct device *dev); extern void iommu_group_remove_device(struct device *dev); extern int iommu_group_for_each_dev(struct iommu_group *group, void *data, int (*fn)(struct device *, void *)); extern struct iommu_group *iommu_group_get(struct device *dev); extern struct iommu_group *iommu_group_ref_get(struct iommu_group *group); extern void iommu_group_put(struct iommu_group *group); extern int iommu_group_register_notifier(struct iommu_group *group, struct notifier_block *nb); extern int iommu_group_unregister_notifier(struct iommu_group *group, struct notifier_block *nb); extern int iommu_group_id(struct iommu_group *group); extern struct iommu_group *iommu_group_get_for_dev(struct device *dev); extern struct iommu_domain *iommu_group_default_domain(struct iommu_group *); extern int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr, void *data); extern int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr, void *data); /* Window handling function prototypes */ extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr, phys_addr_t offset, u64 size, int prot); extern void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr); extern int report_iommu_fault(struct iommu_domain *domain, struct device *dev, unsigned long iova, int flags);
static inline size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova, struct scatterlist *sg, unsigned int nents, int prot) { return domain->ops->map_sg(domain, iova, sg, nents, prot); }

Contributors

PersonTokensPropCommitsCommitProp
Olav Haugan46100.00%1100.00%
Total46100.00%1100.00%

/* PCI device grouping function */ extern struct iommu_group *pci_device_group(struct device *dev); /* Generic device grouping function */ extern struct iommu_group *generic_device_group(struct device *dev); /** * struct iommu_fwspec - per-device IOMMU instance data * @ops: ops for this device's IOMMU * @iommu_fwnode: firmware handle for this device's IOMMU * @iommu_priv: IOMMU driver private data for this device * @num_ids: number of associated device IDs * @ids: IDs which this device may present to the IOMMU */ struct iommu_fwspec { const struct iommu_ops *ops; struct fwnode_handle *iommu_fwnode; void *iommu_priv; unsigned int num_ids; u32 ids[1]; }; int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, const struct iommu_ops *ops); void iommu_fwspec_free(struct device *dev); int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids); const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode); #else /* CONFIG_IOMMU_API */ struct iommu_ops {}; struct iommu_group {}; struct iommu_fwspec {}; struct iommu_device {};
static inline bool iommu_present(struct bus_type *bus) { return false; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel15100.00%2100.00%
Total15100.00%2100.00%


static inline bool iommu_capable(struct bus_type *bus, enum iommu_cap cap) { return false; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel19100.00%1100.00%
Total19100.00%1100.00%


static inline struct iommu_domain *iommu_domain_alloc(struct bus_type *bus) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel17100.00%2100.00%
Total17100.00%2100.00%


static inline struct iommu_group *iommu_group_get_by_id(int id) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Alexey Kardashevskiy15100.00%1100.00%
Total15100.00%1100.00%


static inline void iommu_domain_free(struct iommu_domain *domain) { }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel11100.00%1100.00%
Total11100.00%1100.00%


static inline int iommu_attach_device(struct iommu_domain *domain, struct device *dev) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel21100.00%1100.00%
Total21100.00%1100.00%


static inline void iommu_detach_device(struct iommu_domain *domain, struct device *dev) { }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel16100.00%1100.00%
Total16100.00%1100.00%


static inline struct iommu_domain *iommu_get_domain_for_dev(struct device *dev) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel17100.00%1100.00%
Total17100.00%1100.00%


static inline int iommu_map(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, int gfp_order, int prot) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel29100.00%1100.00%
Total29100.00%1100.00%


static inline int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel23100.00%1100.00%
Total23100.00%1100.00%


static inline size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova, struct scatterlist *sg, unsigned int nents, int prot) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Olav Haugan32100.00%1100.00%
Total32100.00%1100.00%


static inline int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr, phys_addr_t paddr, u64 size, int prot) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel2589.29%150.00%
Varun Sethi310.71%150.00%
Total28100.00%2100.00%


static inline void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr) { }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel14100.00%1100.00%
Total14100.00%1100.00%


static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel1794.44%150.00%
Varun Sethi15.56%150.00%
Total18100.00%2100.00%


static inline void iommu_set_fault_handler(struct iommu_domain *domain, iommu_fault_handler_t handler, void *token) { }

Contributors

PersonTokensPropCommitsCommitProp
Ohad Ben-Cohen1688.89%266.67%
Joerg Roedel211.11%133.33%
Total18100.00%3100.00%


static inline void iommu_get_resv_regions(struct device *dev, struct list_head *list) { }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel1593.75%150.00%
Eric Auger16.25%150.00%
Total16100.00%2100.00%


static inline void iommu_put_resv_regions(struct device *dev, struct list_head *list) { }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel1593.75%150.00%
Eric Auger16.25%150.00%
Total16100.00%2100.00%


static inline int iommu_get_group_resv_regions(struct iommu_group *group, struct list_head *head) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Auger21100.00%1100.00%
Total21100.00%1100.00%


static inline int iommu_request_dm_for_dev(struct device *dev) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel16100.00%1100.00%
Total16100.00%1100.00%


static inline int iommu_attach_group(struct iommu_domain *domain, struct iommu_group *group) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel1676.19%133.33%
Alex Williamson523.81%266.67%
Total21100.00%3100.00%


static inline void iommu_detach_group(struct iommu_domain *domain, struct iommu_group *group) { }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel1168.75%133.33%
Alex Williamson531.25%266.67%
Total16100.00%3100.00%


static inline struct iommu_group *iommu_group_alloc(void) { return ERR_PTR(-ENODEV); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson18100.00%2100.00%
Total18100.00%2100.00%


static inline void *iommu_group_get_iommudata(struct iommu_group *group) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson1381.25%266.67%
Joerg Roedel318.75%133.33%
Total16100.00%3100.00%


static inline void iommu_group_set_iommudata(struct iommu_group *group, void *iommu_data, void (*release)(void *iommu_data)) { }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson2492.31%266.67%
Joerg Roedel27.69%133.33%
Total26100.00%3100.00%


static inline int iommu_group_set_name(struct iommu_group *group, const char *name) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson1990.48%266.67%
Joerg Roedel29.52%133.33%
Total21100.00%3100.00%


static inline int iommu_group_add_device(struct iommu_group *group, struct device *dev) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson1361.90%266.67%
Joerg Roedel838.10%133.33%
Total21100.00%3100.00%


static inline void iommu_group_remove_device(struct device *dev) { }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson11100.00%3100.00%
Total11100.00%3100.00%


static inline int iommu_group_for_each_dev(struct iommu_group *group, void *data, int (*fn)(struct device *, void *)) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson2058.82%266.67%
Joerg Roedel1441.18%133.33%
Total34100.00%3100.00%


static inline struct iommu_group *iommu_group_get(struct device *dev) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson1482.35%266.67%
Joerg Roedel317.65%133.33%
Total17100.00%3100.00%


static inline void iommu_group_put(struct iommu_group *group) { }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson11100.00%2100.00%
Total11100.00%2100.00%


static inline int iommu_group_register_notifier(struct iommu_group *group, struct notifier_block *nb) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson1571.43%266.67%
Joerg Roedel628.57%133.33%
Total21100.00%3100.00%


static inline int iommu_group_unregister_notifier(struct iommu_group *group, struct notifier_block *nb) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Sheng Yang1155.00%133.33%
Alex Williamson945.00%266.67%
Total20100.00%3100.00%


static inline int iommu_group_id(struct iommu_group *group) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson16100.00%3100.00%
Total16100.00%3100.00%


static inline int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr attr, void *data) { return -EINVAL; }

Contributors

PersonTokensPropCommitsCommitProp
Ohad Ben-Cohen1250.00%266.67%
Joerg Roedel1250.00%133.33%
Total24100.00%3100.00%


static inline int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr attr, void *data) { return -EINVAL; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson1458.33%150.00%
Joerg Roedel1041.67%150.00%
Total24100.00%2100.00%


static inline int iommu_device_register(struct iommu_device *iommu) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson1275.00%266.67%
Joerg Roedel425.00%133.33%
Total16100.00%3100.00%


static inline void iommu_device_set_ops(struct iommu_device *iommu, const struct iommu_ops *ops) { }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson952.94%266.67%
Joerg Roedel847.06%133.33%
Total17100.00%3100.00%


static inline void iommu_device_set_fwnode(struct iommu_device *iommu, struct fwnode_handle *fwnode) { }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel1381.25%150.00%
Alex Williamson318.75%150.00%
Total16100.00%2100.00%


static inline void iommu_device_unregister(struct iommu_device *iommu) { }

Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel1090.91%266.67%
Alex Williamson19.09%133.33%
Total11100.00%3100.00%


static inline int iommu_device_sysfs_add(struct iommu_device *iommu, struct device *parent, const struct attribute_group **groups, const char *fmt, ...) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson2262.86%133.33%
Joerg Roedel1337.14%266.67%
Total35100.00%3100.00%


static inline void iommu_device_sysfs_remove(struct iommu_device *iommu) { }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson872.73%250.00%
Joerg Roedel327.27%250.00%
Total11100.00%4100.00%


static inline int iommu_device_link(struct device *dev, struct device *link) { return -EINVAL; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson21100.00%2100.00%
Total21100.00%2100.00%


static inline void iommu_device_unlink(struct device *dev, struct device *link) { }

Contributors

PersonTokensPropCommitsCommitProp
Alex Williamson16100.00%2100.00%
Total16100.00%2100.00%


static inline int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, const struct iommu_ops *ops) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Robin Murphy27100.00%1100.00%
Total27100.00%1100.00%


static inline void iommu_fwspec_free(struct device *dev) { }

Contributors

PersonTokensPropCommitsCommitProp
Robin Murphy11100.00%1100.00%
Total11100.00%1100.00%


static inline int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids) { return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Robin Murphy23100.00%1100.00%
Total23100.00%1100.00%


static inline const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Lorenzo Pieralisi1794.44%150.00%
Joerg Roedel15.56%150.00%
Total18100.00%2100.00%

#endif /* CONFIG_IOMMU_API */ #endif /* __LINUX_IOMMU_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Joerg Roedel132852.16%3343.42%
Alex Williamson56822.31%67.89%
Robin Murphy1857.27%79.21%
Olav Haugan1345.26%11.32%
Ohad Ben-Cohen1224.79%45.26%
Eric Auger712.79%45.26%
Will Deacon281.10%33.95%
Lorenzo Pieralisi281.10%11.32%
Alexey Kardashevskiy250.98%22.63%
Varun Sethi190.75%33.95%
Sheng Yang170.67%22.63%
Mitchel Humpherys40.16%11.32%
Thierry Reding40.16%22.63%
Antonios Motakis40.16%22.63%
Laura Abbott20.08%11.32%
Shuah Khan20.08%11.32%
Magnus Damm20.08%11.32%
Wang YanQing20.08%11.32%
Tom Lyon10.04%11.32%
Total2546100.00%76100.00%
Directory: include/linux
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.