1 files changed, 61 insertions, 23 deletions

diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index afae0697e8c..77c7fa025e6 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -2,7 +2,7 @@
 #define _ASM_POWERPC_IO_H
 #ifdef __KERNEL__
 
-/* 
+/*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
@@ -18,6 +18,9 @@ extern int check_legacy_ioport(unsigned long base_port);
 #define _PNPWRP         0xa79
 #define PNPBIOS_BASE    0xf000
 
+#include <linux/device.h>
+#include <linux/io.h>
+
 #include <linux/compiler.h>
 #include <asm/page.h>
 #include <asm/byteorder.h>
@@ -92,33 +95,60 @@ extern resource_size_t isa_mem_base;
 #define IO_SET_SYNC_FLAG()
 #endif
 
-#define DEF_MMIO_IN(name, type, insn)                                   \
-static inline type name(const volatile type __iomem *addr)              \
+/* gcc 4.0 and older doesn't have 'Z' constraint */
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ == 0)
+#define DEF_MMIO_IN_LE(name, size, insn)                                \
+static inline u##size name(const volatile u##size __iomem *addr)        \
+{                                                                       \
+        u##size ret;                                                    \
+        __asm__ __volatile__("sync;"#insn" %0,0,%1;twi 0,%0,0;isync"    \
+                : "=r" (ret) : "r" (addr), "m" (*addr) : "memory");     \
+        return ret;                                                     \
+}
+
+#define DEF_MMIO_OUT_LE(name, size, insn)                               \
+static inline void name(volatile u##size __iomem *addr, u##size val)    \
+{                                                                       \
+        __asm__ __volatile__("sync;"#insn" %1,0,%2"                     \
+                : "=m" (*addr) : "r" (val), "r" (addr) : "memory");     \
+        IO_SET_SYNC_FLAG();                                             \
+}
+#else /* newer gcc */
+#define DEF_MMIO_IN_LE(name, size, insn)                                \
+static inline u##size name(const volatile u##size __iomem *addr)        \
 {                                                                       \
-        type ret;                                                       \
-        __asm__ __volatile__("sync;" insn ";twi 0,%0,0;isync"           \
-                : "=r" (ret) : "r" (addr), "m" (*addr));                \
+        u##size ret;                                                    \
+        __asm__ __volatile__("sync;"#insn" %0,%y1;twi 0,%0,0;isync"     \
+                : "=r" (ret) : "Z" (*addr) : "memory");                 \
         return ret;                                                     \
 }
 
-#define DEF_MMIO_OUT(name, type, insn)                                  \
-static inline void name(volatile type __iomem *addr, type val)          \
+#define DEF_MMIO_OUT_LE(name, size, insn)                               \
+static inline void name(volatile u##size __iomem *addr, u##size val)    \
 {                                                                       \
-        __asm__ __volatile__("sync;" insn                               \
-                : "=m" (*addr) : "r" (val), "r" (addr));                \
-        IO_SET_SYNC_FLAG();                                     \
+        __asm__ __volatile__("sync;"#insn" %1,%y0"                      \
+                : "=Z" (*addr) : "r" (val) : "memory");                 \
+        IO_SET_SYNC_FLAG();                                             \
 }
+#endif
 
+#define DEF_MMIO_IN_BE(name, size, insn)                                \
+static inline u##size name(const volatile u##size __iomem *addr)        \
+{                                                                       \
+        u##size ret;                                                    \
+        __asm__ __volatile__("sync;"#insn"%U1%X1 %0,%1;twi 0,%0,0;isync"\
+                : "=r" (ret) : "m" (*addr) : "memory");                 \
+        return ret;                                                     \
+}
 
-#define DEF_MMIO_IN_BE(name, size, insn) \
-        DEF_MMIO_IN(name, u##size, __stringify(insn)"%U2%X2 %0,%2")
-#define DEF_MMIO_IN_LE(name, size, insn) \
-        DEF_MMIO_IN(name, u##size, __stringify(insn)" %0,0,%1")
+#define DEF_MMIO_OUT_BE(name, size, insn)                               \
+static inline void name(volatile u##size __iomem *addr, u##size val)    \
+{                                                                       \
+        __asm__ __volatile__("sync;"#insn"%U0%X0 %1,%0"                 \
+                : "=m" (*addr) : "r" (val) : "memory");                 \
+        IO_SET_SYNC_FLAG();                                             \
+}
 
-#define DEF_MMIO_OUT_BE(name, size, insn) \
-        DEF_MMIO_OUT(name, u##size, __stringify(insn)"%U0%X0 %1,%0")
-#define DEF_MMIO_OUT_LE(name, size, insn) \
-        DEF_MMIO_OUT(name, u##size, __stringify(insn)" %1,0,%2")
 
 DEF_MMIO_IN_BE(in_8,     8, lbz);
 DEF_MMIO_IN_BE(in_be16, 16, lhz);
@@ -330,7 +360,8 @@ static inline unsigned int name(unsigned int port)	\
                 "       .long   3b,5b\n"                \
                 ".previous"                             \
                 : "=&r" (x)                             \
-                : "r" (port + _IO_BASE));               \
+                : "r" (port + _IO_BASE)                 \
+                : "memory");                            \
         return x;                                       \
 }
 
@@ -347,7 +378,8 @@ static inline void name(unsigned int val, unsigned int port) \
                 "       .long   0b,2b\n"                \
                 "       .long   1b,2b\n"                \
                 ".previous"                             \
-                : : "r" (val), "r" (port + _IO_BASE));  \
+                : : "r" (val), "r" (port + _IO_BASE)    \
+                : "memory");                            \
 }
 
 __do_in_asm(_rec_inb, "lbzx")
@@ -585,7 +617,8 @@ static inline void iosync(void)
  *   and can be hooked by the platform via ppc_md
  *
  * * ioremap_flags allows to specify the page flags as an argument and can
- *   also be hooked by the platform via ppc_md
+ *   also be hooked by the platform via ppc_md. ioremap_prot is the exact
+ *   same thing as ioremap_flags.
  *
  * * ioremap_nocache is identical to ioremap
  *
@@ -607,6 +640,8 @@ extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
 extern void __iomem *ioremap_flags(phys_addr_t address, unsigned long size,
                                    unsigned long flags);
 #define ioremap_nocache(addr, size)     ioremap((addr), (size))
+#define ioremap_prot(addr, size, prot)  ioremap_flags((addr), (size), (prot))
+
 extern void iounmap(volatile void __iomem *addr);
 
 extern void __iomem *__ioremap(phys_addr_t, unsigned long size,
@@ -740,10 +775,13 @@ static inline void * bus_to_virt(unsigned long address)
 #define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set)
 
 #define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set)
-#define clrsetbits_le16(addr, clear, set) clrsetbits(le32, addr, clear, set)
+#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set)
 
 #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
 
+void __iomem *devm_ioremap_prot(struct device *dev, resource_size_t offset,
+                                size_t size, unsigned long flags);
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_POWERPC_IO_H */