omap: iommu: omapify 'struct iommu' and exposed API

Prepend 'omap_' to OMAP's 'struct iommu' and exposed API, to prevent
namespace pollution and generally to improve readability of the code
that still uses the driver directly.

Update the users as needed as well.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

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;