diff options
Diffstat (limited to 'src/generic/io.h')
| -rw-r--r-- | src/generic/io.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/generic/io.h b/src/generic/io.h index 2a16cf20..12bbd489 100644 --- a/src/generic/io.h +++ b/src/generic/io.h @@ -2,24 +2,34 @@ #define __GENERIC_IO_H #include <stdint.h> // uint32_t +#include "compiler.h" // barrier static inline void writel(void *addr, uint32_t val) { + barrier(); *(volatile uint32_t *)addr = val; } static inline void writew(void *addr, uint16_t val) { + barrier(); *(volatile uint16_t *)addr = val; } static inline void writeb(void *addr, uint8_t val) { + barrier(); *(volatile uint8_t *)addr = val; } static inline uint32_t readl(const void *addr) { - return *(volatile const uint32_t *)addr; + uint32_t val = *(volatile const uint32_t *)addr; + barrier(); + return val; } static inline uint16_t readw(const void *addr) { - return *(volatile const uint16_t *)addr; + uint16_t val = *(volatile const uint16_t *)addr; + barrier(); + return val; } static inline uint8_t readb(const void *addr) { - return *(volatile const uint8_t *)addr; + uint8_t val = *(volatile const uint8_t *)addr; + barrier(); + return val; } #endif // io.h |