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Diffstat (limited to 'arch/m32r/include/asm/io.h')
| -rw-r--r-- | arch/m32r/include/asm/io.h | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h deleted file mode 100644 index a4272d8f0d9c..000000000000 --- a/arch/m32r/include/asm/io.h +++ /dev/null @@ -1,225 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_M32R_IO_H -#define _ASM_M32R_IO_H - -#include <linux/string.h> -#include <linux/compiler.h> -#include <asm/page.h> /* __va */ - -#ifdef __KERNEL__ - -#define IO_SPACE_LIMIT 0xFFFFFFFF - -/** - * virt_to_phys - map virtual addresses to physical - * @address: address to remap - * - * The returned physical address is the physical (CPU) mapping for - * the memory address given. It is only valid to use this function on - * addresses directly mapped or allocated via kmalloc. - * - * This function does not give bus mappings for DMA transfers. In - * almost all conceivable cases a device driver should not be using - * this function - */ - -static inline unsigned long virt_to_phys(volatile void * address) -{ - return __pa(address); -} - -/** - * phys_to_virt - map physical address to virtual - * @address: address to remap - * - * The returned virtual address is a current CPU mapping for - * the memory address given. It is only valid to use this function on - * addresses that have a kernel mapping - * - * This function does not handle bus mappings for DMA transfers. In - * almost all conceivable cases a device driver should not be using - * this function - */ - -static inline void *phys_to_virt(unsigned long address) -{ - return __va(address); -} - -extern void __iomem * -__ioremap(unsigned long offset, unsigned long size, unsigned long flags); - -/** - * ioremap - map bus memory into CPU space - * @offset: bus address of the memory - * @size: size of the resource to map - * - * ioremap performs a platform specific sequence of operations to - * make bus memory CPU accessible via the readb/readw/readl/writeb/ - * writew/writel functions and the other mmio helpers. The returned - * address is not guaranteed to be usable directly as a virtual - * address. - */ - -static inline void __iomem *ioremap(unsigned long offset, unsigned long size) -{ - return __ioremap(offset, size, 0); -} - -extern void iounmap(volatile void __iomem *addr); -#define ioremap_nocache(off,size) ioremap(off,size) -#define ioremap_wc ioremap_nocache -#define ioremap_wt ioremap_nocache -#define ioremap_uc ioremap_nocache - -/* - * IO bus memory addresses are also 1:1 with the physical address - */ -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#define page_to_bus page_to_phys -#define virt_to_bus virt_to_phys - -extern unsigned char _inb(unsigned long); -extern unsigned short _inw(unsigned long); -extern unsigned long _inl(unsigned long); -extern unsigned char _inb_p(unsigned long); -extern unsigned short _inw_p(unsigned long); -extern unsigned long _inl_p(unsigned long); -extern void _outb(unsigned char, unsigned long); -extern void _outw(unsigned short, unsigned long); -extern void _outl(unsigned long, unsigned long); -extern void _outb_p(unsigned char, unsigned long); -extern void _outw_p(unsigned short, unsigned long); -extern void _outl_p(unsigned long, unsigned long); -extern void _insb(unsigned int, void *, unsigned long); -extern void _insw(unsigned int, void *, unsigned long); -extern void _insl(unsigned int, void *, unsigned long); -extern void _outsb(unsigned int, const void *, unsigned long); -extern void _outsw(unsigned int, const void *, unsigned long); -extern void _outsl(unsigned int, const void *, unsigned long); - -static inline unsigned char _readb(unsigned long addr) -{ - return *(volatile unsigned char __force *)addr; -} - -static inline unsigned short _readw(unsigned long addr) -{ - return *(volatile unsigned short __force *)addr; -} - -static inline unsigned long _readl(unsigned long addr) -{ - return *(volatile unsigned long __force *)addr; -} - -static inline void _writeb(unsigned char b, unsigned long addr) -{ - *(volatile unsigned char __force *)addr = b; -} - -static inline void _writew(unsigned short w, unsigned long addr) -{ - *(volatile unsigned short __force *)addr = w; -} - -static inline void _writel(unsigned long l, unsigned long addr) -{ - *(volatile unsigned long __force *)addr = l; -} - -#define inb _inb -#define inw _inw -#define inl _inl -#define outb _outb -#define outw _outw -#define outl _outl - -#define inb_p _inb_p -#define inw_p _inw_p -#define inl_p _inl_p -#define outb_p _outb_p -#define outw_p _outw_p -#define outl_p _outl_p - -#define insb _insb -#define insw _insw -#define insl _insl -#define outsb _outsb -#define outsw _outsw -#define outsl _outsl - -#define readb(addr) _readb((unsigned long)(addr)) -#define readw(addr) _readw((unsigned long)(addr)) -#define readl(addr) _readl((unsigned long)(addr)) -#define __raw_readb readb -#define __raw_readw readw -#define __raw_readl readl -#define readb_relaxed readb -#define readw_relaxed readw -#define readl_relaxed readl - -#define writeb(val, addr) _writeb((val), (unsigned long)(addr)) -#define writew(val, addr) _writew((val), (unsigned long)(addr)) -#define writel(val, addr) _writel((val), (unsigned long)(addr)) -#define __raw_writeb writeb -#define __raw_writew writew -#define __raw_writel writel -#define writeb_relaxed writeb -#define writew_relaxed writew -#define writel_relaxed writel - -#define ioread8 readb -#define ioread16 readw -#define ioread32 readl -#define iowrite8 writeb -#define iowrite16 writew -#define iowrite32 writel - -#define ioread8_rep(p, dst, count) insb((unsigned long)(p), (dst), (count)) -#define ioread16_rep(p, dst, count) insw((unsigned long)(p), (dst), (count)) -#define ioread32_rep(p, dst, count) insl((unsigned long)(p), (dst), (count)) - -#define iowrite8_rep(p, src, count) outsb((unsigned long)(p), (src), (count)) -#define iowrite16_rep(p, src, count) outsw((unsigned long)(p), (src), (count)) -#define iowrite32_rep(p, src, count) outsl((unsigned long)(p), (src), (count)) - -#define ioread16be(addr) be16_to_cpu(readw(addr)) -#define ioread32be(addr) be32_to_cpu(readl(addr)) -#define iowrite16be(v, addr) writew(cpu_to_be16(v), (addr)) -#define iowrite32be(v, addr) writel(cpu_to_be32(v), (addr)) - -#define mmiowb() - -static inline void -memset_io(volatile void __iomem *addr, unsigned char val, int count) -{ - memset((void __force *) addr, val, count); -} - -static inline void -memcpy_fromio(void *dst, volatile void __iomem *src, int count) -{ - memcpy(dst, (void __force *) src, count); -} - -static inline void -memcpy_toio(volatile void __iomem *dst, const void *src, int count) -{ - memcpy((void __force *) dst, src, count); -} - -/* - * 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 /* __KERNEL__ */ - -#endif /* _ASM_M32R_IO_H */ |