#include <linux/irqflags.h>
#include <asm/addrspace.h>
+#include <asm/barrier.h>
#include <asm/bug.h>
#include <asm/byteorder.h>
#include <asm/cpu.h>
* mips_io_port_base for iomap(), but we don't reserve any low addresses for
* use with I/O ports.
*/
+
#define HAVE_ARCH_PIO_SIZE
#define PIO_OFFSET mips_io_port_base
#define PIO_MASK IO_SPACE_LIMIT
#define PIO_RESERVED 0x0UL
/*
+ * Enforce in-order execution of data I/O. In the MIPS architecture
+ * these are equivalent to corresponding platform-specific memory
+ * barriers defined in <asm/barrier.h>. API pinched from PowerPC,
+ * with sync additionally defined.
+ */
+#define iobarrier_rw() mb()
+#define iobarrier_r() rmb()
+#define iobarrier_w() wmb()
+#define iobarrier_sync() iob()
+
+/*
* virt_to_phys - map virtual addresses to physical
* @address: address to remap
*