1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __ASM_SH_IO_TRAPPED_H
 3#define __ASM_SH_IO_TRAPPED_H
 4
 5#include <linux/list.h>
 6#include <linux/ioport.h>
 7#include <asm/page.h>
 8
 9#define IO_TRAPPED_MAGIC 0xfeedbeef
10
11struct trapped_io {
12	unsigned int magic;
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);
19
20#ifdef CONFIG_IO_TRAPPED
21int register_trapped_io(struct trapped_io *tiop);
22int handle_trapped_io(struct pt_regs *regs, unsigned long address);
23
24void __iomem *match_trapped_io_handler(struct list_head *list,
25				       unsigned long offset,
26				       unsigned long size);
27
28#ifdef CONFIG_HAS_IOMEM
29extern struct list_head trapped_mem;
30
31static inline void __iomem *
32__ioremap_trapped(unsigned long offset, unsigned long size)
33{
34	return match_trapped_io_handler(&trapped_mem, offset, size);
35}
36#else
37#define __ioremap_trapped(offset, size) NULL
38#endif
39
40#ifdef CONFIG_HAS_IOPORT_MAP
41extern struct list_head trapped_io;
42
43static inline void __iomem *
44__ioport_map_trapped(unsigned long offset, unsigned long size)
45{
46	return match_trapped_io_handler(&trapped_io, offset, size);
47}
48#else
49#define __ioport_map_trapped(offset, size) NULL
50#endif
51
52#else
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
57#endif
58
59#endif /* __ASM_SH_IO_TRAPPED_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __ASM_SH_IO_TRAPPED_H
 3#define __ASM_SH_IO_TRAPPED_H
 4
 5#include <linux/list.h>
 6#include <linux/ioport.h>
 7#include <asm/page.h>
 8
 9#define IO_TRAPPED_MAGIC 0xfeedbeef
10
11struct trapped_io {
12	unsigned int magic;
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);
19
20#ifdef CONFIG_IO_TRAPPED
21int register_trapped_io(struct trapped_io *tiop);
22int handle_trapped_io(struct pt_regs *regs, unsigned long address);
23
24void __iomem *match_trapped_io_handler(struct list_head *list,
25				       unsigned long offset,
26				       unsigned long size);
27
28#ifdef CONFIG_HAS_IOMEM
29extern struct list_head trapped_mem;
30
31static inline void __iomem *
32__ioremap_trapped(unsigned long offset, unsigned long size)
33{
34	return match_trapped_io_handler(&trapped_mem, offset, size);
35}
36#else
37#define __ioremap_trapped(offset, size) NULL
38#endif
39
40#ifdef CONFIG_HAS_IOPORT_MAP
41extern struct list_head trapped_io;
42
43static inline void __iomem *
44__ioport_map_trapped(unsigned long offset, unsigned long size)
45{
46	return match_trapped_io_handler(&trapped_io, offset, size);
47}
48#else
49#define __ioport_map_trapped(offset, size) NULL
50#endif
51
52#else
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
57#endif
58
59#endif /* __ASM_SH_IO_TRAPPED_H */