diff options
Diffstat (limited to 'drivers/iommu/omap-iommu.c')
| -rw-r--r-- | drivers/iommu/omap-iommu.c | 146 |
1 files changed, 74 insertions, 72 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index d0f28e73be67..dad45ab8cce3 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -42,7 +42,7 @@ */ struct omap_iommu_domain { u32 *pgtable; - struct iommu *iommu_dev; + struct omap_iommu *iommu_dev; spinlock_t lock; }; @@ -53,13 +53,13 @@ static struct platform_driver omap_iommu_driver; static struct kmem_cache *iopte_cachep; /** - * install_iommu_arch - Install archtecure specific iommu functions + * omap_install_iommu_arch - Install archtecure specific iommu functions * @ops: a pointer to architecture specific iommu functions * * There are several kind of iommu algorithm(tlb, pagetable) among * omap series. This interface installs such an iommu algorighm. **/ -int install_iommu_arch(const struct iommu_functions *ops) +int omap_install_iommu_arch(const struct iommu_functions *ops) { if (arch_iommu) return -EBUSY; @@ -67,53 +67,53 @@ int install_iommu_arch(const struct iommu_functions *ops) arch_iommu = ops; return 0; } -EXPORT_SYMBOL_GPL(install_iommu_arch); +EXPORT_SYMBOL_GPL(omap_install_iommu_arch); /** - * uninstall_iommu_arch - Uninstall archtecure specific iommu functions + * omap_uninstall_iommu_arch - Uninstall archtecure specific iommu functions * @ops: a pointer to architecture specific iommu functions * * This interface uninstalls the iommu algorighm installed previously. **/ -void uninstall_iommu_arch(const struct iommu_functions *ops) +void omap_uninstall_iommu_arch(const struct iommu_functions *ops) { if (arch_iommu != ops) pr_err("%s: not your arch\n", __func__); arch_iommu = NULL; } -EXPORT_SYMBOL_GPL(uninstall_iommu_arch); +EXPORT_SYMBOL_GPL(omap_uninstall_iommu_arch); /** - * iommu_save_ctx - Save registers for pm off-mode support + * omap_iommu_save_ctx - Save registers for pm off-mode support * @obj: target iommu **/ -void iommu_save_ctx(struct iommu *obj) +void omap_iommu_save_ctx(struct omap_iommu *obj) { arch_iommu->save_ctx(obj); } -EXPORT_SYMBOL_GPL(iommu_save_ctx); +EXPORT_SYMBOL_GPL(omap_iommu_save_ctx); /** - * iommu_restore_ctx - Restore registers for pm off-mode support + * omap_iommu_restore_ctx - Restore registers for pm off-mode support * @obj: target iommu **/ -void iommu_restore_ctx(struct iommu *obj) +void omap_iommu_restore_ctx(struct omap_iommu *obj) { arch_iommu->restore_ctx(obj); } -EXPORT_SYMBOL_GPL(iommu_restore_ctx); +EXPORT_SYMBOL_GPL(omap_iommu_restore_ctx); /** - * iommu_arch_version - Return running iommu arch version + * omap_iommu_arch_version - Return running iommu arch version **/ -u32 iommu_arch_version(void) +u32 omap_iommu_arch_version(void) { return arch_iommu->version; } -EXPORT_SYMBOL_GPL(iommu_arch_version); +EXPORT_SYMBOL_GPL(omap_iommu_arch_version); -static int iommu_enable(struct iommu *obj) +static int iommu_enable(struct omap_iommu *obj) { int err; @@ -131,7 +131,7 @@ static int iommu_enable(struct iommu *obj) return err; } -static void iommu_disable(struct iommu *obj) +static void iommu_disable(struct omap_iommu *obj) { if (!obj) return; @@ -146,13 +146,13 @@ static void iommu_disable(struct iommu *obj) /* * TLB operations */ -void iotlb_cr_to_e(struct cr_regs *cr, struct iotlb_entry *e) +void omap_iotlb_cr_to_e(struct cr_regs *cr, struct iotlb_entry *e) { BUG_ON(!cr || !e); arch_iommu->cr_to_e(cr, e); } -EXPORT_SYMBOL_GPL(iotlb_cr_to_e); +EXPORT_SYMBOL_GPL(omap_iotlb_cr_to_e); static inline int iotlb_cr_valid(struct cr_regs *cr) { @@ -162,7 +162,7 @@ static inline int iotlb_cr_valid(struct cr_regs *cr) return arch_iommu->cr_valid(cr); } -static inline struct cr_regs *iotlb_alloc_cr(struct iommu *obj, +static inline struct cr_regs *iotlb_alloc_cr(struct omap_iommu *obj, struct iotlb_entry *e) { if (!e) @@ -181,12 +181,12 @@ static u32 get_iopte_attr(struct iotlb_entry *e) return arch_iommu->get_pte_attr(e); } -static u32 iommu_report_fault(struct iommu *obj, u32 *da) +static u32 iommu_report_fault(struct omap_iommu *obj, u32 *da) { return arch_iommu->fault_isr(obj, da); } -static void iotlb_lock_get(struct iommu *obj, struct iotlb_lock *l) +static void iotlb_lock_get(struct omap_iommu *obj, struct iotlb_lock *l) { u32 val; @@ -197,7 +197,7 @@ static void iotlb_lock_get(struct iommu *obj, struct iotlb_lock *l) } -static void iotlb_lock_set(struct iommu *obj, struct iotlb_lock *l) +static void iotlb_lock_set(struct omap_iommu *obj, struct iotlb_lock *l) { u32 val; @@ -207,12 +207,12 @@ static void iotlb_lock_set(struct iommu *obj, struct iotlb_lock *l) iommu_write_reg(obj, val, MMU_LOCK); } -static void iotlb_read_cr(struct iommu *obj, struct cr_regs *cr) +static void iotlb_read_cr(struct omap_iommu *obj, struct cr_regs *cr) { arch_iommu->tlb_read_cr(obj, cr); } -static void iotlb_load_cr(struct iommu *obj, struct cr_regs *cr) +static void iotlb_load_cr(struct omap_iommu *obj, struct cr_regs *cr) { arch_iommu->tlb_load_cr(obj, cr); @@ -226,7 +226,7 @@ static void iotlb_load_cr(struct iommu *obj, struct cr_regs *cr) * @cr: contents of cam and ram register * @buf: output buffer **/ -static inline ssize_t iotlb_dump_cr(struct iommu *obj, struct cr_regs *cr, +static inline ssize_t iotlb_dump_cr(struct omap_iommu *obj, struct cr_regs *cr, char *buf) { BUG_ON(!cr || !buf); @@ -235,7 +235,7 @@ static inline ssize_t iotlb_dump_cr(struct iommu *obj, struct cr_regs *cr, } /* only used in iotlb iteration for-loop */ -static struct cr_regs __iotlb_read_cr(struct iommu *obj, int n) +static struct cr_regs __iotlb_read_cr(struct omap_iommu *obj, int n) { struct cr_regs cr; struct iotlb_lock l; @@ -254,7 +254,7 @@ static struct cr_regs __iotlb_read_cr(struct iommu *obj, int n) * @e: an iommu tlb entry info **/ #ifdef PREFETCH_IOTLB -static int load_iotlb_entry(struct iommu *obj, struct iotlb_entry *e) +static int load_iotlb_entry(struct omap_iommu *obj, struct iotlb_entry *e) { int err = 0; struct iotlb_lock l; @@ -313,14 +313,14 @@ out: #else /* !PREFETCH_IOTLB */ -static int load_iotlb_entry(struct iommu *obj, struct iotlb_entry *e) +static int load_iotlb_entry(struct omap_iommu *obj, struct iotlb_entry *e) { return 0; } #endif /* !PREFETCH_IOTLB */ -static int prefetch_iotlb_entry(struct iommu *obj, struct iotlb_entry *e) +static int prefetch_iotlb_entry(struct omap_iommu *obj, struct iotlb_entry *e) { return load_iotlb_entry(obj, e); } @@ -332,7 +332,7 @@ static int prefetch_iotlb_entry(struct iommu *obj, struct iotlb_entry *e) * * Clear an iommu tlb entry which includes 'da' address. **/ -static void flush_iotlb_page(struct iommu *obj, u32 da) +static void flush_iotlb_page(struct omap_iommu *obj, u32 da) { int i; struct cr_regs cr; @@ -366,7 +366,7 @@ static void flush_iotlb_page(struct iommu *obj, u32 da) * flush_iotlb_all - Clear all iommu tlb entries * @obj: target iommu **/ -static void flush_iotlb_all(struct iommu *obj) +static void flush_iotlb_all(struct omap_iommu *obj) { struct iotlb_lock l; @@ -383,7 +383,7 @@ static void flush_iotlb_all(struct iommu *obj) #if defined(CONFIG_OMAP_IOMMU_DEBUG_MODULE) -ssize_t iommu_dump_ctx(struct iommu *obj, char *buf, ssize_t bytes) +ssize_t omap_iommu_dump_ctx(struct omap_iommu *obj, char *buf, ssize_t bytes) { if (!obj || !buf) return -EINVAL; @@ -396,9 +396,10 @@ ssize_t iommu_dump_ctx(struct iommu *obj, char *buf, ssize_t bytes) return bytes; } -EXPORT_SYMBOL_GPL(iommu_dump_ctx); +EXPORT_SYMBOL_GPL(omap_iommu_dump_ctx); -static int __dump_tlb_entries(struct iommu *obj, struct cr_regs *crs, int num) +static int +__dump_tlb_entries(struct omap_iommu *obj, struct cr_regs *crs, int num) { int i; struct iotlb_lock saved; @@ -421,11 +422,11 @@ static int __dump_tlb_entries(struct iommu *obj, struct cr_regs *crs, int num) } /** - * dump_tlb_entries - dump cr arrays to given buffer + * omap_dump_tlb_entries - dump cr arrays to given buffer * @obj: target iommu * @buf: output buffer **/ -size_t dump_tlb_entries(struct iommu *obj, char *buf, ssize_t bytes) +size_t omap_dump_tlb_entries(struct omap_iommu *obj, char *buf, ssize_t bytes) { int i, num; struct cr_regs *cr; @@ -445,14 +446,14 @@ size_t dump_tlb_entries(struct iommu *obj, char *buf, ssize_t bytes) return p - buf; } -EXPORT_SYMBOL_GPL(dump_tlb_entries); +EXPORT_SYMBOL_GPL(omap_dump_tlb_entries); -int foreach_iommu_device(void *data, int (*fn)(struct device *, void *)) +int omap_foreach_iommu_device(void *data, int (*fn)(struct device *, void *)) { return driver_for_each_device(&omap_iommu_driver.driver, NULL, data, fn); } -EXPORT_SYMBOL_GPL(foreach_iommu_device); +EXPORT_SYMBOL_GPL(omap_foreach_iommu_device); #endif /* CONFIG_OMAP_IOMMU_DEBUG_MODULE */ @@ -485,7 +486,7 @@ static void iopte_free(u32 *iopte) kmem_cache_free(iopte_cachep, iopte); } -static u32 *iopte_alloc(struct iommu *obj, u32 *iopgd, u32 da) +static u32 *iopte_alloc(struct omap_iommu *obj, u32 *iopgd, u32 da) { u32 *iopte; @@ -523,7 +524,7 @@ pte_ready: return iopte; } -static int iopgd_alloc_section(struct iommu *obj, u32 da, u32 pa, u32 prot) +static int iopgd_alloc_section(struct omap_iommu *obj, u32 da, u32 pa, u32 prot) { u32 *iopgd = iopgd_offset(obj, da); @@ -538,7 +539,7 @@ static int iopgd_alloc_section(struct iommu *obj, u32 da, u32 pa, u32 prot) return 0; } -static int iopgd_alloc_super(struct iommu *obj, u32 da, u32 pa, u32 prot) +static int iopgd_alloc_super(struct omap_iommu *obj, u32 da, u32 pa, u32 prot) { u32 *iopgd = iopgd_offset(obj, da); int i; @@ -555,7 +556,7 @@ static int iopgd_alloc_super(struct iommu *obj, u32 da, u32 pa, u32 prot) return 0; } -static int iopte_alloc_page(struct iommu *obj, u32 da, u32 pa, u32 prot) +static int iopte_alloc_page(struct omap_iommu *obj, u32 da, u32 pa, u32 prot) { u32 *iopgd = iopgd_offset(obj, da); u32 *iopte = iopte_alloc(obj, iopgd, da); @@ -572,7 +573,7 @@ static int iopte_alloc_page(struct iommu *obj, u32 da, u32 pa, u32 prot) return 0; } -static int iopte_alloc_large(struct iommu *obj, u32 da, u32 pa, u32 prot) +static int iopte_alloc_large(struct omap_iommu *obj, u32 da, u32 pa, u32 prot) { u32 *iopgd = iopgd_offset(obj, da); u32 *iopte = iopte_alloc(obj, iopgd, da); @@ -593,9 +594,10 @@ static int iopte_alloc_large(struct iommu *obj, u32 da, u32 pa, u32 prot) return 0; } -static int iopgtable_store_entry_core(struct iommu *obj, struct iotlb_entry *e) +static int +iopgtable_store_entry_core(struct omap_iommu *obj, struct iotlb_entry *e) { - int (*fn)(struct iommu *, u32, u32, u32); + int (*fn)(struct omap_iommu *, u32, u32, u32); u32 prot; int err; @@ -631,11 +633,11 @@ static int iopgtable_store_entry_core(struct iommu *obj, struct iotlb_entry *e) } /** - * iopgtable_store_entry - Make an iommu pte entry + * omap_iopgtable_store_entry - Make an iommu pte entry * @obj: target iommu * @e: an iommu tlb entry info **/ -int iopgtable_store_entry(struct iommu *obj, struct iotlb_entry *e) +int omap_iopgtable_store_entry(struct omap_iommu *obj, struct iotlb_entry *e) { int err; @@ -645,7 +647,7 @@ int iopgtable_store_entry(struct iommu *obj, struct iotlb_entry *e) prefetch_iotlb_entry(obj, e); return err; } -EXPORT_SYMBOL_GPL(iopgtable_store_entry); +EXPORT_SYMBOL_GPL(omap_iopgtable_store_entry); /** * iopgtable_lookup_entry - Lookup an iommu pte entry @@ -670,7 +672,7 @@ out: *ppte = iopte; } -static size_t iopgtable_clear_entry_core(struct iommu *obj, u32 da) +static size_t iopgtable_clear_entry_core(struct omap_iommu *obj, u32 da) { size_t bytes; u32 *iopgd = iopgd_offset(obj, da); @@ -723,7 +725,7 @@ out: * @obj: target iommu * @da: iommu device virtual address **/ -static size_t iopgtable_clear_entry(struct iommu *obj, u32 da) +static size_t iopgtable_clear_entry(struct omap_iommu *obj, u32 da) { size_t bytes; @@ -737,7 +739,7 @@ static size_t iopgtable_clear_entry(struct iommu *obj, u32 da) return bytes; } -static void iopgtable_clear_entry_all(struct iommu *obj) +static void iopgtable_clear_entry_all(struct omap_iommu *obj) { int i; @@ -772,7 +774,7 @@ static irqreturn_t iommu_fault_handler(int irq, void *data) { u32 da, errs; u32 *iopgd, *iopte; - struct iommu *obj = data; + struct omap_iommu *obj = data; if (!obj->refcount) return IRQ_NONE; @@ -808,7 +810,7 @@ static irqreturn_t iommu_fault_handler(int irq, void *data) static int device_match_by_alias(struct device *dev, void *data) { - struct iommu *obj = to_iommu(dev); + struct omap_iommu *obj = to_iommu(dev); const char *name = data; pr_debug("%s: %s %s\n", __func__, obj->name, name); @@ -842,10 +844,10 @@ EXPORT_SYMBOL_GPL(omap_find_iommu_device); * @dev: target omap iommu device * @iopgd: page table **/ -static struct iommu *omap_iommu_attach(struct device *dev, u32 *iopgd) +static struct omap_iommu *omap_iommu_attach(struct device *dev, u32 *iopgd) { int err = -ENOMEM; - struct iommu *obj = to_iommu(dev); + struct omap_iommu *obj = to_iommu(dev); spin_lock(&obj->iommu_lock); @@ -883,7 +885,7 @@ err_enable: * omap_iommu_detach - release iommu device * @obj: target iommu **/ -static void omap_iommu_detach(struct iommu *obj) +static void omap_iommu_detach(struct omap_iommu *obj) { if (!obj || IS_ERR(obj)) return; @@ -902,13 +904,13 @@ static void omap_iommu_detach(struct iommu *obj) dev_dbg(obj->dev, "%s: %s\n", __func__, obj->name); } -int iommu_set_isr(const char *name, - int (*isr)(struct iommu *obj, u32 da, u32 iommu_errs, +int omap_iommu_set_isr(const char *name, + int (*isr)(struct omap_iommu *obj, u32 da, u32 iommu_errs, void *priv), void *isr_priv) { struct device *dev; - struct iommu *obj; + struct omap_iommu *obj; dev = driver_find_device(&omap_iommu_driver.driver, NULL, (void *)name, device_match_by_alias); @@ -927,7 +929,7 @@ int iommu_set_isr(const char *name, return 0; } -EXPORT_SYMBOL_GPL(iommu_set_isr); +EXPORT_SYMBOL_GPL(omap_iommu_set_isr); /* * OMAP Device MMU(IOMMU) detection @@ -936,7 +938,7 @@ static int __devinit omap_iommu_probe(struct platform_device *pdev) { int err = -ENODEV; int irq; - struct iommu *obj; + struct omap_iommu *obj; struct resource *res; struct iommu_platform_data *pdata = pdev->dev.platform_data; @@ -1011,7 +1013,7 @@ static int __devexit omap_iommu_remove(struct platform_device *pdev) { int irq; struct resource *res; - struct iommu *obj = platform_get_drvdata(pdev); + struct omap_iommu *obj = platform_get_drvdata(pdev); platform_set_drvdata(pdev, NULL); @@ -1046,7 +1048,7 @@ static int omap_iommu_map(struct iommu_domain *domain, unsigned long da, phys_addr_t pa, int order, int prot) { struct omap_iommu_domain *omap_domain = domain->priv; - struct iommu *oiommu = omap_domain->iommu_dev; + struct omap_iommu *oiommu = omap_domain->iommu_dev; struct device *dev = oiommu->dev; size_t bytes = PAGE_SIZE << order; struct iotlb_entry e; @@ -1066,9 +1068,9 @@ static int omap_iommu_map(struct iommu_domain *domain, unsigned long da, iotlb_init_entry(&e, da, pa, flags); - ret = iopgtable_store_entry(oiommu, &e); + ret = omap_iopgtable_store_entry(oiommu, &e); if (ret) { - dev_err(dev, "iopgtable_store_entry failed: %d\n", ret); + dev_err(dev, "omap_iopgtable_store_entry failed: %d\n", ret); return ret; } @@ -1079,7 +1081,7 @@ static int omap_iommu_unmap(struct iommu_domain *domain, unsigned long da, int order) { struct omap_iommu_domain *omap_domain = domain->priv; - struct iommu *oiommu = omap_domain->iommu_dev; + struct omap_iommu *oiommu = omap_domain->iommu_dev; struct device *dev = oiommu->dev; size_t bytes = PAGE_SIZE << order; size_t ret; @@ -1099,7 +1101,7 @@ static int omap_iommu_attach_dev(struct iommu_domain *domain, struct device *dev) { struct omap_iommu_domain *omap_domain = domain->priv; - struct iommu *oiommu; + struct omap_iommu *oiommu; int ret = 0; spin_lock(&omap_domain->lock); @@ -1130,7 +1132,7 @@ static void omap_iommu_detach_dev(struct iommu_domain *domain, struct device *dev) { struct omap_iommu_domain *omap_domain = domain->priv; - struct iommu *oiommu = to_iommu(dev); + struct omap_iommu *oiommu = to_iommu(dev); spin_lock(&omap_domain->lock); @@ -1200,7 +1202,7 @@ static phys_addr_t omap_iommu_iova_to_phys(struct iommu_domain *domain, unsigned long da) { struct omap_iommu_domain *omap_domain = domain->priv; - struct iommu *oiommu = omap_domain->iommu_dev; + struct omap_iommu *oiommu = omap_domain->iommu_dev; struct device *dev = oiommu->dev; u32 *pgd, *pte; phys_addr_t ret = 0; |
