diff options
Diffstat (limited to 'drivers/iommu/omap-iommu.h')
| -rw-r--r-- | drivers/iommu/omap-iommu.h | 61 |
1 files changed, 29 insertions, 32 deletions
diff --git a/drivers/iommu/omap-iommu.h b/drivers/iommu/omap-iommu.h index 45fe67d641e2..0516e0ed77d7 100644 --- a/drivers/iommu/omap-iommu.h +++ b/drivers/iommu/omap-iommu.h @@ -13,10 +13,6 @@ #ifndef _OMAP_IOMMU_H #define _OMAP_IOMMU_H -#if defined(CONFIG_ARCH_OMAP1) -#error "iommu for this processor not implemented yet" -#endif - struct iotlb_entry { u32 da; u32 pa; @@ -68,31 +64,6 @@ struct cr_regs { }; }; -/* architecture specific functions */ -struct iommu_functions { - int (*enable)(struct omap_iommu *obj); - void (*disable)(struct omap_iommu *obj); - void (*set_twl)(struct omap_iommu *obj, bool on); - u32 (*fault_isr)(struct omap_iommu *obj, u32 *ra); - - void (*tlb_read_cr)(struct omap_iommu *obj, struct cr_regs *cr); - void (*tlb_load_cr)(struct omap_iommu *obj, struct cr_regs *cr); - - struct cr_regs *(*alloc_cr)(struct omap_iommu *obj, - struct iotlb_entry *e); - int (*cr_valid)(struct cr_regs *cr); - u32 (*cr_to_virt)(struct cr_regs *cr); - void (*cr_to_e)(struct cr_regs *cr, struct iotlb_entry *e); - ssize_t (*dump_cr)(struct omap_iommu *obj, struct cr_regs *cr, - char *buf); - - u32 (*get_pte_attr)(struct iotlb_entry *e); - - void (*save_ctx)(struct omap_iommu *obj); - void (*restore_ctx)(struct omap_iommu *obj); - ssize_t (*dump_ctx)(struct omap_iommu *obj, char *buf, ssize_t len); -}; - /** * dev_to_omap_iommu() - retrieves an omap iommu object from a user device * @dev: iommu client device @@ -130,6 +101,28 @@ static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev) /* * MMU Register bit definitions */ +/* IRQSTATUS & IRQENABLE */ +#define MMU_IRQ_MULTIHITFAULT (1 << 4) +#define MMU_IRQ_TABLEWALKFAULT (1 << 3) +#define MMU_IRQ_EMUMISS (1 << 2) +#define MMU_IRQ_TRANSLATIONFAULT (1 << 1) +#define MMU_IRQ_TLBMISS (1 << 0) + +#define __MMU_IRQ_FAULT \ + (MMU_IRQ_MULTIHITFAULT | MMU_IRQ_EMUMISS | MMU_IRQ_TRANSLATIONFAULT) +#define MMU_IRQ_MASK \ + (__MMU_IRQ_FAULT | MMU_IRQ_TABLEWALKFAULT | MMU_IRQ_TLBMISS) +#define MMU_IRQ_TWL_MASK (__MMU_IRQ_FAULT | MMU_IRQ_TABLEWALKFAULT) +#define MMU_IRQ_TLB_MISS_MASK (__MMU_IRQ_FAULT | MMU_IRQ_TLBMISS) + +/* MMU_CNTL */ +#define MMU_CNTL_SHIFT 1 +#define MMU_CNTL_MASK (7 << MMU_CNTL_SHIFT) +#define MMU_CNTL_EML_TLB (1 << 3) +#define MMU_CNTL_TWL_EN (1 << 2) +#define MMU_CNTL_MMU_EN (1 << 1) + +/* CAM */ #define MMU_CAM_VATAG_SHIFT 12 #define MMU_CAM_VATAG_MASK \ ((~0UL >> MMU_CAM_VATAG_SHIFT) << MMU_CAM_VATAG_SHIFT) @@ -141,6 +134,7 @@ static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev) #define MMU_CAM_PGSZ_4K (2 << 0) #define MMU_CAM_PGSZ_16M (3 << 0) +/* RAM */ #define MMU_RAM_PADDR_SHIFT 12 #define MMU_RAM_PADDR_MASK \ ((~0UL >> MMU_RAM_PADDR_SHIFT) << MMU_RAM_PADDR_SHIFT) @@ -162,6 +156,12 @@ static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev) #define MMU_GP_REG_BUS_ERR_BACK_EN 0x1 +#define get_cam_va_mask(pgsz) \ + (((pgsz) == MMU_CAM_PGSZ_16M) ? 0xff000000 : \ + ((pgsz) == MMU_CAM_PGSZ_1M) ? 0xfff00000 : \ + ((pgsz) == MMU_CAM_PGSZ_64K) ? 0xffff0000 : \ + ((pgsz) == MMU_CAM_PGSZ_4K) ? 0xfffff000 : 0) + /* * utilities for super page(16MB, 1MB, 64KB and 4KB) */ @@ -197,9 +197,6 @@ omap_iopgtable_store_entry(struct omap_iommu *obj, struct iotlb_entry *e); extern int omap_foreach_iommu_device(void *data, int (*fn)(struct device *, void *)); -extern int omap_install_iommu_arch(const struct iommu_functions *ops); -extern void omap_uninstall_iommu_arch(const struct iommu_functions *ops); - extern ssize_t omap_iommu_dump_ctx(struct omap_iommu *obj, char *buf, ssize_t len); extern size_t |