summaryrefslogtreecommitdiffstats
path: root/arch/mips/include
diff options
context:
space:
mode:
authorAntony Pavlov <antonynpavlov@gmail.com>2017-08-11 16:26:10 +0200
committerLucas Stach <l.stach@pengutronix.de>2017-08-15 15:39:25 +0200
commit745aff2248856e38db5c190301ffe14b101dce70 (patch)
tree3ff1ed41c500c46c59371af261f00e3c87123a49 /arch/mips/include
parentcdc65ec8ddaca1e957b6e4dd37c89be76b0a2bb5 (diff)
downloadbarebox-745aff2248856e38db5c190301ffe14b101dce70.tar.gz
barebox-745aff2248856e38db5c190301ffe14b101dce70.tar.xz
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>
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/io.h25
1 files changed, 25 insertions, 0 deletions
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
/*****************************************************************************/