FreeBSD compat layer: fixed bus_space_barrier for x86_64
This commit is contained in:
parent
24394a9d11
commit
4089e1c1ca
|
@ -231,7 +231,11 @@ bus_space_barrier(bus_space_tag_t tag, bus_space_handle_t handle,
|
|||
bus_size_t offset, bus_size_t len, int flags)
|
||||
{
|
||||
if (flags & BUS_SPACE_BARRIER_READ)
|
||||
#ifdef __x86_64__
|
||||
__asm__ __volatile__ ("lock; addl $0,0(%%rsp)" : : : "memory");
|
||||
#else
|
||||
__asm__ __volatile__ ("lock; addl $0,0(%%esp)" : : : "memory");
|
||||
#endif
|
||||
else
|
||||
__asm__ __volatile__ ("" : : : "memory");
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue