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Diffstat (limited to 'include')
-rw-r--r--include/asm-mips/io.h57
1 files changed, 32 insertions, 25 deletions
diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
index 42f80782acd..3061870b7f6 100644
--- a/include/asm-mips/io.h
+++ b/include/asm-mips/io.h
@@ -387,11 +387,11 @@ static inline void pfx##out##bwlq##p(type val, unsigned long port) \
\
__val = pfx##ioswab##bwlq(val); \
\
- if (sizeof(type) != sizeof(u64)) { \
- *__addr = __val; \
- slow; \
- } else \
- BUILD_BUG(); \
+ /* Really, we want this to be atomic */ \
+ BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \
+ \
+ *__addr = __val; \
+ slow; \
} \
\
static inline type pfx##in##bwlq##p(unsigned long port) \
@@ -402,13 +402,10 @@ static inline type pfx##in##bwlq##p(unsigned long port) \
port = __swizzle_addr_##bwlq(port); \
__addr = (void *)(mips_io_port_base + port); \
\
- if (sizeof(type) != sizeof(u64)) { \
- __val = *__addr; \
- slow; \
- } else { \
- __val = 0; \
- BUILD_BUG(); \
- } \
+ BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \
+ \
+ __val = *__addr; \
+ slow; \
\
return pfx##ioswab##bwlq(__val); \
}
@@ -417,28 +414,36 @@ static inline type pfx##in##bwlq##p(unsigned long port) \
\
__BUILD_MEMORY_SINGLE(bus, bwlq, type, 1)
-#define __BUILD_IOPORT_PFX(bus, bwlq, type) \
- \
-__BUILD_IOPORT_SINGLE(bus, bwlq, type, ,) \
-__BUILD_IOPORT_SINGLE(bus, bwlq, type, _p, SLOW_DOWN_IO)
-
-#define BUILDIO(bwlq, type) \
+#define BUILDIO_MEM(bwlq, type) \
\
__BUILD_MEMORY_PFX(__raw_, bwlq, type) \
__BUILD_MEMORY_PFX(, bwlq, type) \
__BUILD_MEMORY_PFX(mem_, bwlq, type) \
-__BUILD_IOPORT_PFX(, bwlq, type) \
-__BUILD_IOPORT_PFX(mem_, bwlq, type)
+
+BUILDIO_MEM(b, u8)
+BUILDIO_MEM(w, u16)
+BUILDIO_MEM(l, u32)
+BUILDIO_MEM(q, u64)
+
+#define __BUILD_IOPORT_PFX(bus, bwlq, type) \
+ __BUILD_IOPORT_SINGLE(bus, bwlq, type, ,) \
+ __BUILD_IOPORT_SINGLE(bus, bwlq, type, _p, SLOW_DOWN_IO)
+
+#define BUILDIO_IOPORT(bwlq, type) \
+ __BUILD_IOPORT_PFX(, bwlq, type) \
+ __BUILD_IOPORT_PFX(mem_, bwlq, type)
+
+BUILDIO_IOPORT(b, u8)
+BUILDIO_IOPORT(w, u16)
+BUILDIO_IOPORT(l, u32)
+#ifdef CONFIG_64BIT
+BUILDIO_IOPORT(q, u64)
+#endif
#define __BUILDIO(bwlq, type) \
\
__BUILD_MEMORY_SINGLE(____raw_, bwlq, type, 0)
-BUILDIO(b, u8)
-BUILDIO(w, u16)
-BUILDIO(l, u32)
-BUILDIO(q, u64)
-
__BUILDIO(q, u64)
#define readb_relaxed readb
@@ -508,7 +513,9 @@ __BUILD_IOPORT_STRING(bwlq, type)
BUILDSTRING(b, u8)
BUILDSTRING(w, u16)
BUILDSTRING(l, u32)
+#ifdef CONFIG_64BIT
BUILDSTRING(q, u64)
+#endif
/* Depends on MIPS II instruction set */