| Message ID | 1349311168-3524-3-git-send-email-sjg@chromium.org |
|---|---|
| State | Superseded, archived |
| Delegated to: | Graeme Russ |
| Headers | show |
Acked-by: Gabe Black <gabeblack@chromium.org>
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h index 9b757d4..b12bdd8 100644 --- a/arch/x86/include/asm/io.h +++ b/arch/x86/include/asm/io.h @@ -234,4 +234,12 @@ static inline phys_addr_t virt_to_phys(void * vaddr) return (phys_addr_t)(vaddr); } +/* + * TODO: The kernel offers some more advanced versions of barriers, it might + * have some advantages to use them instead of the simple one here. + */ +#define dmb() __asm__ __volatile__ ("" : : : "memory") +#define __iormb() dmb() +#define __iowmb() dmb() + #endif
These are available on other architectures, so add them on x86. Signed-off-by: Simon Glass <sjg@chromium.org> --- arch/x86/include/asm/io.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)