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Diffstat (limited to 'include/asm-parisc/io.h')
-rw-r--r-- | include/asm-parisc/io.h | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/include/asm-parisc/io.h b/include/asm-parisc/io.h deleted file mode 100644 index 55ddb18..0000000 --- a/include/asm-parisc/io.h +++ /dev/null @@ -1,293 +0,0 @@ -#ifndef _ASM_IO_H -#define _ASM_IO_H - -#include <linux/types.h> -#include <asm/pgtable.h> - -extern unsigned long parisc_vmerge_boundary; -extern unsigned long parisc_vmerge_max_size; - -#define BIO_VMERGE_BOUNDARY parisc_vmerge_boundary -#define BIO_VMERGE_MAX_SIZE parisc_vmerge_max_size - -#define virt_to_phys(a) ((unsigned long)__pa(a)) -#define phys_to_virt(a) __va(a) -#define virt_to_bus virt_to_phys -#define bus_to_virt phys_to_virt - -static inline unsigned long isa_bus_to_virt(unsigned long addr) { - BUG(); - return 0; -} - -static inline unsigned long isa_virt_to_bus(void *addr) { - BUG(); - return 0; -} - -/* - * Memory mapped I/O - * - * readX()/writeX() do byteswapping and take an ioremapped address - * __raw_readX()/__raw_writeX() don't byteswap and take an ioremapped address. - * gsc_*() don't byteswap and operate on physical addresses; - * eg dev->hpa or 0xfee00000. - */ - -static inline unsigned char gsc_readb(unsigned long addr) -{ - long flags; - unsigned char ret; - - __asm__ __volatile__( - " rsm 2,%0\n" - " ldbx 0(%2),%1\n" - " mtsm %0\n" - : "=&r" (flags), "=r" (ret) : "r" (addr) ); - - return ret; -} - -static inline unsigned short gsc_readw(unsigned long addr) -{ - long flags; - unsigned short ret; - - __asm__ __volatile__( - " rsm 2,%0\n" - " ldhx 0(%2),%1\n" - " mtsm %0\n" - : "=&r" (flags), "=r" (ret) : "r" (addr) ); - - return ret; -} - -static inline unsigned int gsc_readl(unsigned long addr) -{ - u32 ret; - - __asm__ __volatile__( - " ldwax 0(%1),%0\n" - : "=r" (ret) : "r" (addr) ); - - return ret; -} - -static inline unsigned long long gsc_readq(unsigned long addr) -{ - unsigned long long ret; - -#ifdef CONFIG_64BIT - __asm__ __volatile__( - " ldda 0(%1),%0\n" - : "=r" (ret) : "r" (addr) ); -#else - /* two reads may have side effects.. */ - ret = ((u64) gsc_readl(addr)) << 32; - ret |= gsc_readl(addr+4); -#endif - return ret; -} - -static inline void gsc_writeb(unsigned char val, unsigned long addr) -{ - long flags; - __asm__ __volatile__( - " rsm 2,%0\n" - " stbs %1,0(%2)\n" - " mtsm %0\n" - : "=&r" (flags) : "r" (val), "r" (addr) ); -} - -static inline void gsc_writew(unsigned short val, unsigned long addr) -{ - long flags; - __asm__ __volatile__( - " rsm 2,%0\n" - " sths %1,0(%2)\n" - " mtsm %0\n" - : "=&r" (flags) : "r" (val), "r" (addr) ); -} - -static inline void gsc_writel(unsigned int val, unsigned long addr) -{ - __asm__ __volatile__( - " stwas %0,0(%1)\n" - : : "r" (val), "r" (addr) ); -} - -static inline void gsc_writeq(unsigned long long val, unsigned long addr) -{ -#ifdef CONFIG_64BIT - __asm__ __volatile__( - " stda %0,0(%1)\n" - : : "r" (val), "r" (addr) ); -#else - /* two writes may have side effects.. */ - gsc_writel(val >> 32, addr); - gsc_writel(val, addr+4); -#endif -} - -/* - * The standard PCI ioremap interfaces - */ - -extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags); - -/* Most machines react poorly to I/O-space being cacheable... Instead let's - * define ioremap() in terms of ioremap_nocache(). - */ -static inline void __iomem * ioremap(unsigned long offset, unsigned long size) -{ - return __ioremap(offset, size, _PAGE_NO_CACHE); -} -#define ioremap_nocache(off, sz) ioremap((off), (sz)) - -extern void iounmap(const volatile void __iomem *addr); - -static inline unsigned char __raw_readb(const volatile void __iomem *addr) -{ - return (*(volatile unsigned char __force *) (addr)); -} -static inline unsigned short __raw_readw(const volatile void __iomem *addr) -{ - return *(volatile unsigned short __force *) addr; -} -static inline unsigned int __raw_readl(const volatile void __iomem *addr) -{ - return *(volatile unsigned int __force *) addr; -} -static inline unsigned long long __raw_readq(const volatile void __iomem *addr) -{ - return *(volatile unsigned long long __force *) addr; -} - -static inline void __raw_writeb(unsigned char b, volatile void __iomem *addr) -{ - *(volatile unsigned char __force *) addr = b; -} -static inline void __raw_writew(unsigned short b, volatile void __iomem *addr) -{ - *(volatile unsigned short __force *) addr = b; -} -static inline void __raw_writel(unsigned int b, volatile void __iomem *addr) -{ - *(volatile unsigned int __force *) addr = b; -} -static inline void __raw_writeq(unsigned long long b, volatile void __iomem *addr) -{ - *(volatile unsigned long long __force *) addr = b; -} - -/* readb can never be const, so use __fswab instead of le*_to_cpu */ -#define readb(addr) __raw_readb(addr) -#define readw(addr) __fswab16(__raw_readw(addr)) -#define readl(addr) __fswab32(__raw_readl(addr)) -#define readq(addr) __fswab64(__raw_readq(addr)) -#define writeb(b, addr) __raw_writeb(b, addr) -#define writew(b, addr) __raw_writew(cpu_to_le16(b), addr) -#define writel(b, addr) __raw_writel(cpu_to_le32(b), addr) -#define writeq(b, addr) __raw_writeq(cpu_to_le64(b), addr) - -#define readb_relaxed(addr) readb(addr) -#define readw_relaxed(addr) readw(addr) -#define readl_relaxed(addr) readl(addr) -#define readq_relaxed(addr) readq(addr) - -#define mmiowb() do { } while (0) - -void memset_io(volatile void __iomem *addr, unsigned char val, int count); -void memcpy_fromio(void *dst, const volatile void __iomem *src, int count); -void memcpy_toio(volatile void __iomem *dst, const void *src, int count); - -/* Port-space IO */ - -#define inb_p inb -#define inw_p inw -#define inl_p inl -#define outb_p outb -#define outw_p outw -#define outl_p outl - -extern unsigned char eisa_in8(unsigned short port); -extern unsigned short eisa_in16(unsigned short port); -extern unsigned int eisa_in32(unsigned short port); -extern void eisa_out8(unsigned char data, unsigned short port); -extern void eisa_out16(unsigned short data, unsigned short port); -extern void eisa_out32(unsigned int data, unsigned short port); - -#if defined(CONFIG_PCI) -extern unsigned char inb(int addr); -extern unsigned short inw(int addr); -extern unsigned int inl(int addr); - -extern void outb(unsigned char b, int addr); -extern void outw(unsigned short b, int addr); -extern void outl(unsigned int b, int addr); -#elif defined(CONFIG_EISA) -#define inb eisa_in8 -#define inw eisa_in16 -#define inl eisa_in32 -#define outb eisa_out8 -#define outw eisa_out16 -#define outl eisa_out32 -#else -static inline char inb(unsigned long addr) -{ - BUG(); - return -1; -} - -static inline short inw(unsigned long addr) -{ - BUG(); - return -1; -} - -static inline int inl(unsigned long addr) -{ - BUG(); - return -1; -} - -#define outb(x, y) BUG() -#define outw(x, y) BUG() -#define outl(x, y) BUG() -#endif - -/* - * String versions of in/out ops: - */ -extern void insb (unsigned long port, void *dst, unsigned long count); -extern void insw (unsigned long port, void *dst, unsigned long count); -extern void insl (unsigned long port, void *dst, unsigned long count); -extern void outsb (unsigned long port, const void *src, unsigned long count); -extern void outsw (unsigned long port, const void *src, unsigned long count); -extern void outsl (unsigned long port, const void *src, unsigned long count); - - -/* IO Port space is : BBiiii where BB is HBA number. */ -#define IO_SPACE_LIMIT 0x00ffffff - -/* PA machines have an MM I/O space from 0xf0000000-0xffffffff in 32 - * bit mode and from 0xfffffffff0000000-0xfffffffffffffff in 64 bit - * mode (essentially just sign extending. This macro takes in a 32 - * bit I/O address (still with the leading f) and outputs the correct - * value for either 32 or 64 bit mode */ -#define F_EXTEND(x) ((unsigned long)((x) | (0xffffffff00000000ULL))) - -#include <asm-generic/iomap.h> - -/* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access - */ -#define xlate_dev_mem_ptr(p) __va(p) - -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - -#endif |