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Merge branches 'iommu/fixes', 'arm/exynos', 'arm/renesas', 'arm/smmu', 'arm/mediatek', 'arm/core', 'x86/vt-d' and 'core' into next

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This commit is contained in:
Joerg Roedel
2017-02-10 15:13:10 +01:00
parent 99e8ccd383 fff2fd1a9e 3b6bb5b705 aac7d39f20 087a908f53 2c9f1af528 f7116e115a d0f6f58326
commit 8d2932dd06
1244 changed files with 13520 additions and 8038 deletions
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138
include/linux/iommu.h
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@@ -31,6 +31,13 @@
#define IOMMU_CACHE (1 << 2) /* DMA cache coherency */
#define IOMMU_NOEXEC (1 << 3)
#define IOMMU_MMIO (1 << 4) /* e.g. things like MSI doorbells */
/*
* This is to make the IOMMU API setup privileged
* mapppings accessible by the master only at higher
* privileged execution level and inaccessible at
* less privileged levels.
*/
#define IOMMU_PRIV (1 << 5)
struct iommu_ops;
struct iommu_group;
@@ -117,18 +124,25 @@ enum iommu_attr {
DOMAIN_ATTR_MAX,
};
/* These are the possible reserved region types */
#define IOMMU_RESV_DIRECT (1 << 0)
#define IOMMU_RESV_RESERVED (1 << 1)
#define IOMMU_RESV_MSI (1 << 2)
/**
* struct iommu_dm_region - descriptor for a direct mapped memory region
* 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_dm_region {
struct iommu_resv_region {
struct list_head list;
phys_addr_t start;
size_t length;
int prot;
int type;
};
#ifdef CONFIG_IOMMU_API
@@ -150,9 +164,9 @@ struct iommu_dm_region {
* @device_group: find iommu group for a particular device
* @domain_get_attr: Query domain attributes
* @domain_set_attr: Change domain attributes
* @get_dm_regions: Request list of direct mapping requirements for a device
* @put_dm_regions: Free list of direct mapping requirements for a device
* @apply_dm_region: Temporary helper call-back for iova reserved ranges
* @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
@@ -184,11 +198,12 @@ struct iommu_ops {
int (*domain_set_attr)(struct iommu_domain *domain,
enum iommu_attr attr, void *data);
/* Request/Free a list of direct mapping requirements for a device */
void (*get_dm_regions)(struct device *dev, struct list_head *list);
void (*put_dm_regions)(struct device *dev, struct list_head *list);
void (*apply_dm_region)(struct device *dev, struct iommu_domain *domain,
struct iommu_dm_region *region);
/* 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,
@@ -204,6 +219,42 @@ struct iommu_ops {
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;
}
static inline void iommu_device_set_fwnode(struct iommu_device *iommu,
struct fwnode_handle *fwnode)
{
iommu->fwnode = fwnode;
}
#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 */
@@ -233,9 +284,13 @@ extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t io
extern void iommu_set_fault_handler(struct iommu_domain *domain,
iommu_fault_handler_t handler, void *token);
extern void iommu_get_dm_regions(struct device *dev, struct list_head *list);
extern void iommu_put_dm_regions(struct device *dev, struct list_head *list);
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, int 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);
@@ -267,12 +322,6 @@ 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);
struct device *iommu_device_create(struct device *parent, void *drvdata,
const struct attribute_group **groups,
const char *fmt, ...) __printf(4, 5);
void iommu_device_destroy(struct device *dev);
int iommu_device_link(struct device *dev, struct device *link);
void iommu_device_unlink(struct device *dev, struct device *link);
/* Window handling function prototypes */
extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
@@ -352,15 +401,14 @@ 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);
void iommu_register_instance(struct fwnode_handle *fwnode,
const struct iommu_ops *ops);
const struct iommu_ops *iommu_get_instance(struct fwnode_handle *fwnode);
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)
{
@@ -443,16 +491,22 @@ static inline void iommu_set_fault_handler(struct iommu_domain *domain,
{
}
static inline void iommu_get_dm_regions(struct device *dev,
static inline void iommu_get_resv_regions(struct device *dev,
struct list_head *list)
{
}
static inline void iommu_put_dm_regions(struct device *dev,
static inline void iommu_put_resv_regions(struct device *dev,
struct list_head *list)
{
}
static inline int iommu_get_group_resv_regions(struct iommu_group *group,
struct list_head *head)
{
return -ENODEV;
}
static inline int iommu_request_dm_for_dev(struct device *dev)
{
return -ENODEV;
@@ -546,15 +600,34 @@ static inline int iommu_domain_set_attr(struct iommu_domain *domain,
return -EINVAL;
}
static inline struct device *iommu_device_create(struct device *parent,
void *drvdata,
const struct attribute_group **groups,
const char *fmt, ...)
static inline int iommu_device_register(struct iommu_device *iommu)
{
return ERR_PTR(-ENODEV);
return -ENODEV;
}
static inline void iommu_device_destroy(struct device *dev)
static inline void iommu_device_set_ops(struct iommu_device *iommu,
const struct iommu_ops *ops)
{
}
static inline void iommu_device_set_fwnode(struct iommu_device *iommu,
struct fwnode_handle *fwnode)
{
}
static inline void iommu_device_unregister(struct iommu_device *iommu)
{
}
static inline int iommu_device_sysfs_add(struct iommu_device *iommu,
struct device *parent,
const struct attribute_group **groups,
const char *fmt, ...)
{
return -ENODEV;
}
static inline void iommu_device_sysfs_remove(struct iommu_device *iommu)
{
}
@@ -584,13 +657,8 @@ static inline int iommu_fwspec_add_ids(struct device *dev, u32 *ids,
return -ENODEV;
}
static inline void iommu_register_instance(struct fwnode_handle *fwnode,
const struct iommu_ops *ops)
{
}
static inline
const struct iommu_ops *iommu_get_instance(struct fwnode_handle *fwnode)
const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
{
return NULL;
}