1 /* SPDX-License-Identifier: GPL-2.0 */
15 #include <asm-generic/iomap.h>
22  * Virtual -> physical identity mapping starts at this offset
34  * register not being up-to-date with respect to the hardware
46 	/* Re-read to make sure it was written.  */  in __set_hae()
65 	return (unsigned long)address - IDENT_ADDR;  in virt_to_phys()
75         unsigned long phys = (unsigned long)address;  in virt_to_phys()  local
77 	/* Sign-extend from bit 41.  */  in virt_to_phys()
78 	phys <<= (64 - 41);  in virt_to_phys()
79 	phys = (long)phys >> (64 - 41);  in virt_to_phys()
82         phys &= (1ul << hwrpb->pa_bits) - 1;  in virt_to_phys()
84         return phys;  in virt_to_phys()
89         return (void *)(IDENT_ADDR + (address & ((1ul << 41) - 1)));  in phys_to_virt()
104  * deprecated in favour of the DMA-mapping API.
111 	unsigned long phys = virt_to_phys(address);  in virt_to_bus()  local
112 	unsigned long bus = phys + __direct_map_base;  in virt_to_bus()
113 	return phys <= __direct_map_size ? bus : 0;  in virt_to_bus()
124 	address -= __direct_map_base;  in bus_to_virt()
239 extern u8		inb(unsigned long port);
240 extern u16		inw(unsigned long port);
241 extern u32		inl(unsigned long port);
242 extern void		outb(u8 b, unsigned long port);
243 extern void		outw(u16 b, unsigned long port);
244 extern void		outl(u32 b, unsigned long port);
265  * Mapping from port numbers to __iomem space is pretty easy.
269    <asm-generic/iomap.h>.  It is not legal to mix "extern" and "static" for
271 extern inline void __iomem *ioport_map(unsigned long port, unsigned int size)  in ioport_map()  argument
273 	return IO_CONCAT(__IO_PREFIX,ioportmap) (port);  in ioport_map()
280 static inline void __iomem *ioremap(unsigned long port, unsigned long size)  in ioremap()  argument
282 	return IO_CONCAT(__IO_PREFIX,ioremap) (port, size);  in ioremap()
340 extern inline u8 inb(unsigned long port)  in inb()  argument
342 	return ioread8(ioport_map(port, 1));  in inb()
345 extern inline u16 inw(unsigned long port)  in inw()  argument
347 	return ioread16(ioport_map(port, 2));  in inw()
350 extern inline void outb(u8 b, unsigned long port)  in outb()  argument
352 	iowrite8(b, ioport_map(port, 1));  in outb()
355 extern inline void outw(u16 b, unsigned long port)  in outw()  argument
357 	iowrite16(b, ioport_map(port, 2));  in outw()
377 extern inline u32 inl(unsigned long port)  in inl()  argument
379 	return ioread32(ioport_map(port, 4));  in inl()
382 extern inline void outl(u32 b, unsigned long port)  in outl()  argument
384 	iowrite32(b, ioport_map(port, 4));  in outl()
563 extern void insb (unsigned long port, void *dst, unsigned long count);
564 extern void insw (unsigned long port, void *dst, unsigned long count);
565 extern void insl (unsigned long port, void *dst, unsigned long count);
566 extern void outsb (unsigned long port, const void *src, unsigned long count);
567 extern void outsw (unsigned long port, const void *src, unsigned long count);
568 extern void outsl (unsigned long port, const void *src, unsigned long count);
592  * to play with; for now just use cpp anti-recursion logics and make sure