diff options
Diffstat (limited to 'drivers/iommu/omap-iommu.h')
| -rw-r--r-- | drivers/iommu/omap-iommu.h | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/iommu/omap-iommu.h b/drivers/iommu/omap-iommu.h index d736630..b6cc90b 100644 --- a/drivers/iommu/omap-iommu.h +++ b/drivers/iommu/omap-iommu.h @@ -13,6 +13,11 @@ #ifndef _OMAP_IOMMU_H #define _OMAP_IOMMU_H +#define for_each_iotlb_cr(obj, n, __i, cr) \ + for (__i = 0; \ + (__i < (n)) && (cr = __iotlb_read_cr((obj), __i), true); \ + __i++) + struct iotlb_entry { u32 da; u32 pa; @@ -65,6 +70,11 @@ struct cr_regs { }; }; +struct iotlb_lock { + short base; + short vict; +}; + /** * dev_to_omap_iommu() - retrieves an omap iommu object from a user device * @dev: iommu client device @@ -190,12 +200,12 @@ static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev) /* * global functions */ -#ifdef CONFIG_OMAP_IOMMU_DEBUG -extern ssize_t -omap_iommu_dump_ctx(struct omap_iommu *obj, char *buf, ssize_t len); -extern size_t -omap_dump_tlb_entries(struct omap_iommu *obj, char *buf, ssize_t len); +struct cr_regs __iotlb_read_cr(struct omap_iommu *obj, int n); +void iotlb_lock_get(struct omap_iommu *obj, struct iotlb_lock *l); +void iotlb_lock_set(struct omap_iommu *obj, struct iotlb_lock *l); + +#ifdef CONFIG_OMAP_IOMMU_DEBUG void omap_iommu_debugfs_init(void); void omap_iommu_debugfs_exit(void); @@ -222,4 +232,12 @@ static inline void iommu_write_reg(struct omap_iommu *obj, u32 val, size_t offs) __raw_writel(val, obj->regbase + offs); } +static inline int iotlb_cr_valid(struct cr_regs *cr) +{ + if (!cr) + return -EINVAL; + + return cr->cam & MMU_CAM_V; +} + #endif /* _OMAP_IOMMU_H */ |
