Contributors: 20
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Linus Torvalds |
217 |
52.04% |
3 |
13.64% |
| Anton Blanchard |
46 |
11.03% |
1 |
4.55% |
| James Bottomley |
41 |
9.83% |
1 |
4.55% |
| Logan Gunthorpe |
28 |
6.71% |
1 |
4.55% |
| Lorenzo Pieralisi |
14 |
3.36% |
1 |
4.55% |
| Krzysztof Kozlowski |
12 |
2.88% |
1 |
4.55% |
| Hector Martin |
10 |
2.40% |
1 |
4.55% |
| Arnd Bergmann |
8 |
1.92% |
1 |
4.55% |
| Venkatesh Pallipadi |
7 |
1.68% |
1 |
4.55% |
| Toshi Kani |
7 |
1.68% |
1 |
4.55% |
| Jonas Bonn |
6 |
1.44% |
1 |
4.55% |
| Andrew Morton |
5 |
1.20% |
1 |
4.55% |
| Horia Geantă |
4 |
0.96% |
1 |
4.55% |
| Baoquan He |
3 |
0.72% |
1 |
4.55% |
| Michael S. Tsirkin |
3 |
0.72% |
1 |
4.55% |
| Christoph Hellwig |
2 |
0.48% |
1 |
4.55% |
| Randy Dunlap |
1 |
0.24% |
1 |
4.55% |
| David S. Miller |
1 |
0.24% |
1 |
4.55% |
| Uwe Kleine-König |
1 |
0.24% |
1 |
4.55% |
| Greg Kroah-Hartman |
1 |
0.24% |
1 |
4.55% |
| Total |
417 |
|
22 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __GENERIC_IO_H
#define __GENERIC_IO_H
#include <linux/linkage.h>
#include <asm/byteorder.h>
/*
* These are the "generic" interfaces for doing new-style
* memory-mapped or PIO accesses. Architectures may do
* their own arch-optimized versions, these just act as
* wrappers around the old-style IO register access functions:
* read[bwl]/write[bwl]/in[bwl]/out[bwl]
*
* Don't include this directly, include it from <asm/io.h>.
*/
/*
* Read/write from/to an (offsettable) iomem cookie. It might be a PIO
* access or a MMIO access, these functions don't care. The info is
* encoded in the hardware mapping set up by the mapping functions
* (or the cookie itself, depending on implementation and hw).
*
* The generic routines just encode the PIO/MMIO as part of the
* cookie, and coldly assume that the MMIO IO mappings are not
* in the low address range. Architectures for which this is not
* true can't use this generic implementation.
*/
extern unsigned int ioread8(const void __iomem *);
extern unsigned int ioread16(const void __iomem *);
extern unsigned int ioread16be(const void __iomem *);
extern unsigned int ioread32(const void __iomem *);
extern unsigned int ioread32be(const void __iomem *);
extern u64 __ioread64_lo_hi(const void __iomem *addr);
extern u64 __ioread64_hi_lo(const void __iomem *addr);
extern u64 __ioread64be_lo_hi(const void __iomem *addr);
extern u64 __ioread64be_hi_lo(const void __iomem *addr);
extern void iowrite8(u8, void __iomem *);
extern void iowrite16(u16, void __iomem *);
extern void iowrite16be(u16, void __iomem *);
extern void iowrite32(u32, void __iomem *);
extern void iowrite32be(u32, void __iomem *);
extern void __iowrite64_lo_hi(u64 val, void __iomem *addr);
extern void __iowrite64_hi_lo(u64 val, void __iomem *addr);
extern void __iowrite64be_lo_hi(u64 val, void __iomem *addr);
extern void __iowrite64be_hi_lo(u64 val, void __iomem *addr);
/*
* "string" versions of the above. Note that they
* use native byte ordering for the accesses (on
* the assumption that IO and memory agree on a
* byte order, and CPU byteorder is irrelevant).
*
* They do _not_ update the port address. If you
* want MMIO that copies stuff laid out in MMIO
* memory across multiple ports, use "memcpy_toio()"
* and friends.
*/
extern void ioread8_rep(const void __iomem *port, void *buf, unsigned long count);
extern void ioread16_rep(const void __iomem *port, void *buf, unsigned long count);
extern void ioread32_rep(const void __iomem *port, void *buf, unsigned long count);
extern void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count);
extern void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count);
extern void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count);
#ifdef CONFIG_HAS_IOPORT_MAP
/* Create a virtual mapping cookie for an IO port range */
extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
extern void ioport_unmap(void __iomem *);
#endif
#ifndef ioremap_wc
#define ioremap_wc ioremap
#endif
#ifndef ioremap_wt
#define ioremap_wt ioremap
#endif
#ifndef ioremap_np
/* See the comment in asm-generic/io.h about ioremap_np(). */
#define ioremap_np ioremap_np
static inline void __iomem *ioremap_np(phys_addr_t offset, size_t size)
{
return NULL;
}
#endif
#include <asm-generic/pci_iomap.h>
#endif