linux_dsm_epyc7002/tools/virtio/asm/barrier.h

#if defined(__i386__) || defined(__x86_64__)
#define barrier() asm volatile("" ::: "memory")
#define mb() __sync_synchronize()

#define smp_mb()	mb()
# define dma_rmb()	barrier()
# define dma_wmb()	barrier()
# define smp_rmb()	barrier()
# define smp_wmb()	barrier()
/* Weak barriers should be used. If not - it's a bug */
# define rmb()	abort()
# define wmb()	abort()
#else
#error Please fill in barrier macros
#endif
tools/virtio: separate headers more. This makes them a bit more like the kernel headers, so we can include more real kernel headers in our tests. In addition this means that we don't break tools/virtio with the next patch. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 2013-03-18 09:52:19 +07:00			`#if defined(__i386__) \|\| defined(__x86_64__)`
			`#define barrier() asm volatile("" ::: "memory")`
			`#define mb() __sync_synchronize()`

			`#define smp_mb() mb()`
tools/virtio: fix build after 4.2 changes more stubs, mostly Signed-off-by: Michael S. Tsirkin <mst@redhat.com> 2015-09-10 02:03:30 +07:00			`# define dma_rmb() barrier()`
			`# define dma_wmb() barrier()`
tools/virtio: separate headers more. This makes them a bit more like the kernel headers, so we can include more real kernel headers in our tests. In addition this means that we don't break tools/virtio with the next patch. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 2013-03-18 09:52:19 +07:00			`# define smp_rmb() barrier()`
			`# define smp_wmb() barrier()`
			`/* Weak barriers should be used. If not - it's a bug */`
			`# define rmb() abort()`
			`# define wmb() abort()`
			`#else`
			`#error Please fill in barrier macros`
			`#endif`