iommu/omap: Move debugfs functions to omap-iommu-debug.c

The main OMAP IOMMU driver file has some helper functions used
by the OMAP IOMMU debugfs functionality, and there is already a
dedicated source file omap-iommu-debug.c dealing with these debugfs
routines. Move all these functions to the omap-iommu-debug.c file,
so that all the debugfs related routines are in one place.

The move required exposing some new functions and moving some
definitions to the internal omap-iommu.h header file.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

1 files changed, 23 insertions, 5 deletions

diff --git a/drivers/iommu/omap-iommu.h b/drivers/iommu/omap-iommu.h
index d736630df3c8..b6cc90b2ba41 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 */