/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SH_IO_TRAPPED_H #define __ASM_SH_IO_TRAPPED_H #include <linux/list.h> #include <linux/ioport.h> #include <asm/page.h> #define IO_TRAPPED_MAGIC 0xfeedbeef struct trapped_io { unsigned int magic; struct resource *resource; unsigned int num_resources; unsigned int minimum_bus_width; struct list_head list; void __iomem *virt_base; } __aligned(PAGE_SIZE); #ifdef CONFIG_IO_TRAPPED int register_trapped_io(struct trapped_io *tiop); int handle_trapped_io(struct pt_regs *regs, unsigned long address); void __iomem *match_trapped_io_handler(struct list_head *list, unsigned long offset, unsigned long size); #ifdef CONFIG_HAS_IOMEM extern struct list_head trapped_mem; static inline void __iomem * __ioremap_trapped(unsigned long offset, unsigned long size) { return match_trapped_io_handler(&trapped_mem, offset, size); } #else #define __ioremap_trapped(offset, size) NULL #endif #ifdef CONFIG_HAS_IOPORT_MAP extern struct list_head trapped_io; static inline void __iomem * __ioport_map_trapped(unsigned long offset, unsigned long size) { return match_trapped_io_handler(&trapped_io, offset, size); } #else #define __ioport_map_trapped(offset, size) NULL #endif #else #define register_trapped_io(tiop) (-1) #define handle_trapped_io(tiop, address) 0 #define __ioremap_trapped(offset, size) NULL #define __ioport_map_trapped(offset, size) NULL #endif #endif /* __ASM_SH_IO_TRAPPED_H */