1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_SH_IO_TRAPPED_H
3 #define __ASM_SH_IO_TRAPPED_H
5 #include <linux/list.h>
6 #include <linux/ioport.h>
9 #define IO_TRAPPED_MAGIC 0xfeedbeef
13 struct resource
*resource
;
14 unsigned int num_resources
;
15 unsigned int minimum_bus_width
;
16 struct list_head list
;
17 void __iomem
*virt_base
;
18 } __aligned(PAGE_SIZE
);
20 #ifdef CONFIG_IO_TRAPPED
21 int register_trapped_io(struct trapped_io
*tiop
);
22 int handle_trapped_io(struct pt_regs
*regs
, unsigned long address
);
24 void __iomem
*match_trapped_io_handler(struct list_head
*list
,
28 #ifdef CONFIG_HAS_IOMEM
29 extern struct list_head trapped_mem
;
31 static inline void __iomem
*
32 __ioremap_trapped(unsigned long offset
, unsigned long size
)
34 return match_trapped_io_handler(&trapped_mem
, offset
, size
);
37 #define __ioremap_trapped(offset, size) NULL
40 #ifdef CONFIG_HAS_IOPORT_MAP
41 extern struct list_head trapped_io
;
43 static inline void __iomem
*
44 __ioport_map_trapped(unsigned long offset
, unsigned long size
)
46 return match_trapped_io_handler(&trapped_io
, offset
, size
);
49 #define __ioport_map_trapped(offset, size) NULL
53 #define register_trapped_io(tiop) (-1)
54 #define handle_trapped_io(tiop, address) 0
55 #define __ioremap_trapped(offset, size) NULL
56 #define __ioport_map_trapped(offset, size) NULL
59 #endif /* __ASM_SH_IO_TRAPPED_H */