projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1965aae3 PA |
1 | #ifndef _ASM_X86_IO_H |
| 2 | #define _ASM_X86_IO_H | |
| e045fb2a | 3 | |
| b310f381 | 4 | #define ARCH_HAS_IOREMAP_WC |
| 5 | ||
| c1f64a58 LT |
6 | #include <linux/compiler.h> |
| 7 | ||
| 8 | #define build_mmio_read(name, size, type, reg, barrier) \ | |
| 9 | static inline type name(const volatile void __iomem *addr) \ | |
| 1c5b0eb6 | 10 | { type ret; asm volatile("mov" size " %1,%0":reg (ret) \ |
| c1f64a58 LT |
11 | :"m" (*(volatile type __force *)addr) barrier); return ret; } |
| 12 | ||
| 13 | #define build_mmio_write(name, size, type, reg, barrier) \ | |
| 14 | static inline void name(type val, volatile void __iomem *addr) \ | |
| 15 | { asm volatile("mov" size " %0,%1": :reg (val), \ | |
| 16 | "m" (*(volatile type __force *)addr) barrier); } | |
| 17 | ||
| 1c5b0eb6 MP |
18 | build_mmio_read(readb, "b", unsigned char, "=q", :"memory") |
| 19 | build_mmio_read(readw, "w", unsigned short, "=r", :"memory") | |
| 20 | build_mmio_read(readl, "l", unsigned int, "=r", :"memory") | |
| c1f64a58 | 21 | |
| 1c5b0eb6 MP |
22 | build_mmio_read(__readb, "b", unsigned char, "=q", ) |
| 23 | build_mmio_read(__readw, "w", unsigned short, "=r", ) | |
| 24 | build_mmio_read(__readl, "l", unsigned int, "=r", ) | |
| c1f64a58 LT |
25 | |
| 26 | build_mmio_write(writeb, "b", unsigned char, "q", :"memory") | |
| 27 | build_mmio_write(writew, "w", unsigned short, "r", :"memory") | |
| 28 | build_mmio_write(writel, "l", unsigned int, "r", :"memory") | |
| 29 | ||
| 30 | build_mmio_write(__writeb, "b", unsigned char, "q", ) | |
| 31 | build_mmio_write(__writew, "w", unsigned short, "r", ) | |
| 32 | build_mmio_write(__writel, "l", unsigned int, "r", ) | |
| 33 | ||
| 34 | #define readb_relaxed(a) __readb(a) | |
| 35 | #define readw_relaxed(a) __readw(a) | |
| 36 | #define readl_relaxed(a) __readl(a) | |
| 37 | #define __raw_readb __readb | |
| 38 | #define __raw_readw __readw | |
| 39 | #define __raw_readl __readl | |
| 40 | ||
| 41 | #define __raw_writeb __writeb | |
| 42 | #define __raw_writew __writew | |
| 43 | #define __raw_writel __writel | |
| 44 | ||
| 45 | #define mmiowb() barrier() | |
| 46 | ||
| 47 | #ifdef CONFIG_X86_64 | |
| 1c5b0eb6 MP |
48 | build_mmio_read(readq, "q", unsigned long, "=r", :"memory") |
| 49 | build_mmio_read(__readq, "q", unsigned long, "=r", ) | |
| c1f64a58 LT |
50 | build_mmio_write(writeq, "q", unsigned long, "r", :"memory") |
| 51 | build_mmio_write(__writeq, "q", unsigned long, "r", ) | |
| 52 | ||
| 53 | #define readq_relaxed(a) __readq(a) | |
| 54 | #define __raw_readq __readq | |
| 55 | #define __raw_writeq writeq | |
| 56 | ||
| 57 | /* Let people know we have them */ | |
| 58 | #define readq readq | |
| 59 | #define writeq writeq | |
| 60 | #endif | |
| 61 | ||
| 9321b8cb JS |
62 | extern int iommu_bio_merge; |
| 63 | ||
| 96a388de TG |
64 | #ifdef CONFIG_X86_32 |
| 65 | # include "io_32.h" | |
| 66 | #else | |
| 67 | # include "io_64.h" | |
| 68 | #endif | |
| e045fb2a | 69 | |
| 70 | extern void *xlate_dev_mem_ptr(unsigned long phys); | |
| 71 | extern void unxlate_dev_mem_ptr(unsigned long phys, void *addr); | |
| 72 | ||
| 3a96ce8c | 73 | extern int ioremap_change_attr(unsigned long vaddr, unsigned long size, |
| 74 | unsigned long prot_val); | |
| 1774a5be | 75 | extern void __iomem *ioremap_wc(unsigned long offset, unsigned long size); |
| 3a96ce8c | 76 | |
| 4583ed51 JF |
77 | /* |
| 78 | * early_ioremap() and early_iounmap() are for temporary early boot-time | |
| 79 | * mappings, before the real ioremap() is functional. | |
| 80 | * A boot-time mapping is currently limited to at most 16 pages. | |
| 81 | */ | |
| 82 | extern void early_ioremap_init(void); | |
| 83 | extern void early_ioremap_clear(void); | |
| 84 | extern void early_ioremap_reset(void); | |
| 1d6cf1fe HH |
85 | extern void __iomem *early_ioremap(unsigned long offset, unsigned long size); |
| 86 | extern void __iomem *early_memremap(unsigned long offset, unsigned long size); | |
| 87 | extern void early_iounmap(void __iomem *addr, unsigned long size); | |
| 4583ed51 JF |
88 | extern void __iomem *fix_ioremap(unsigned idx, unsigned long phys); |
| 89 | ||
| 90 | ||
| 1965aae3 | 91 | #endif /* _ASM_X86_IO_H */ |