From 745aff2248856e38db5c190301ffe14b101dce70 Mon Sep 17 00:00:00 2001
From: Antony Pavlov <antonynpavlov@gmail.com>
Date: Fri, 11 Aug 2017 16:26:10 +0200
Subject: MIPS: add virt_to_phys() and phys_to_virt()

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 arch/mips/include/asm/io.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'arch/mips/include')

diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 4bee5913a5..5a4cbf564a 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -12,11 +12,36 @@
 
 #include <linux/compiler.h>
 #include <asm/types.h>
+#include <asm/addrspace.h>
 #include <asm/byteorder.h>
 
 void dma_flush_range(unsigned long, unsigned long);
 void dma_inv_range(unsigned long, unsigned long);
 
+/*
+ *     virt_to_phys - map virtual addresses to physical
+ *     @address: address to remap
+ *
+ *     The returned physical address is the physical (CPU) mapping for
+ *     the memory address given.
+ */
+static inline unsigned long virt_to_phys(const void *address)
+{
+	return (unsigned long)CPHYSADDR(address);
+}
+
+/*
+ *     phys_to_virt - map physical address to virtual
+ *     @address: address to remap
+ *
+ *     The returned virtual address is a current CPU mapping for
+ *     the memory address given.
+ */
+static inline void *phys_to_virt(unsigned long address)
+{
+	return (void *)CKSEG0ADDR(address);
+}
+
 #define	IO_SPACE_LIMIT	0
 
 /*****************************************************************************/
-- 
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