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Merge branches 'iommu/fixes', 'arm/qcom', 'arm/renesas', 'arm/rockchip', 'arm/mediatek', 'arm/tegra', 'arm/smmu', 'x86/amd', 'x86/vt-d', 'virtio' and 'core' into next

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This commit is contained in:
Joerg Roedel 2019-11-12 17:11:25 +01:00
commit 9b3a713fee
43 changed files with 1650 additions and 1212 deletions
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65
include/linux/iommu.h
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@ -13,6 +13,7 @@
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/ioasid.h>
#include <uapi/linux/iommu.h>
#define IOMMU_READ (1 << 0)
@ -31,11 +32,11 @@
*/
#define IOMMU_PRIV (1 << 5)
/*
* Non-coherent masters on few Qualcomm SoCs can use this page protection flag
* to set correct cacheability attributes to use an outer level of cache -
* last level cache, aka system cache.
* Non-coherent masters can use this page protection flag to set cacheable
* memory attributes for only a transparent outer level of cache, also known as
* the last-level or system cache.
*/
#define IOMMU_QCOM_SYS_CACHE (1 << 6)
#define IOMMU_SYS_CACHE_ONLY (1 << 6)
struct iommu_ops;
struct iommu_group;
@ -244,7 +245,10 @@ struct iommu_iotlb_gather {
* @sva_unbind: Unbind process address space from device
* @sva_get_pasid: Get PASID associated to a SVA handle
* @page_response: handle page request response
* @cache_invalidate: invalidate translation caches
* @pgsize_bitmap: bitmap of all possible supported page sizes
* @sva_bind_gpasid: bind guest pasid and mm
* @sva_unbind_gpasid: unbind guest pasid and mm
*/
struct iommu_ops {
bool (*capable)(enum iommu_cap);
@ -256,7 +260,7 @@ struct iommu_ops {
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);
phys_addr_t paddr, size_t size, int prot, gfp_t gfp);
size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
size_t size, struct iommu_iotlb_gather *iotlb_gather);
void (*flush_iotlb_all)(struct iommu_domain *domain);
@ -306,6 +310,12 @@ struct iommu_ops {
int (*page_response)(struct device *dev,
struct iommu_fault_event *evt,
struct iommu_page_response *msg);
int (*cache_invalidate)(struct iommu_domain *domain, struct device *dev,
struct iommu_cache_invalidate_info *inv_info);
int (*sva_bind_gpasid)(struct iommu_domain *domain,
struct device *dev, struct iommu_gpasid_bind_data *data);
int (*sva_unbind_gpasid)(struct device *dev, int pasid);
unsigned long pgsize_bitmap;
};
@ -417,10 +427,19 @@ 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 int iommu_cache_invalidate(struct iommu_domain *domain,
struct device *dev,
struct iommu_cache_invalidate_info *inv_info);
extern int iommu_sva_bind_gpasid(struct iommu_domain *domain,
struct device *dev, struct iommu_gpasid_bind_data *data);
extern int iommu_sva_unbind_gpasid(struct iommu_domain *domain,
struct device *dev, ioasid_t pasid);
extern struct iommu_domain *iommu_get_domain_for_dev(struct device *dev);
extern struct iommu_domain *iommu_get_dma_domain(struct device *dev);
extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot);
extern int iommu_map_atomic(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 iommu_unmap_fast(struct iommu_domain *domain,
@ -428,6 +447,9 @@ extern size_t iommu_unmap_fast(struct iommu_domain *domain,
struct iommu_iotlb_gather *iotlb_gather);
extern size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
struct scatterlist *sg,unsigned int nents, int prot);
extern size_t iommu_map_sg_atomic(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);
@ -662,6 +684,13 @@ static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,
return -ENODEV;
}
static inline int iommu_map_atomic(struct iommu_domain *domain,
unsigned long iova, phys_addr_t paddr,
size_t size, int prot)
{
return -ENODEV;
}
static inline size_t iommu_unmap(struct iommu_domain *domain,
unsigned long iova, size_t size)
{
@ -682,6 +711,13 @@ static inline size_t iommu_map_sg(struct iommu_domain *domain,
return 0;
}
static inline size_t iommu_map_sg_atomic(struct iommu_domain *domain,
unsigned long iova, struct scatterlist *sg,
unsigned int nents, int prot)
{
return 0;
}
static inline void iommu_flush_tlb_all(struct iommu_domain *domain)
{
}
@ -1005,6 +1041,25 @@ static inline int iommu_sva_get_pasid(struct iommu_sva *handle)
return IOMMU_PASID_INVALID;
}
static inline int
iommu_cache_invalidate(struct iommu_domain *domain,
struct device *dev,
struct iommu_cache_invalidate_info *inv_info)
{
return -ENODEV;
}
static inline int iommu_sva_bind_gpasid(struct iommu_domain *domain,
struct device *dev, struct iommu_gpasid_bind_data *data)
{
return -ENODEV;
}
static inline int iommu_sva_unbind_gpasid(struct iommu_domain *domain,
struct device *dev, int pasid)
{
return -ENODEV;
}
#endif /* CONFIG_IOMMU_API */
#ifdef CONFIG_IOMMU_DEBUGFS