+++ /dev/null
-#ifndef __ASM_SH_IO_H
-#define __ASM_SH_IO_H
-
-/*
- * Convention:
- * read{b,w,l}/write{b,w,l} are for PCI,
- * while in{b,w,l}/out{b,w,l} are for ISA
- * These may (will) be platform specific function.
- * In addition we have 'pausing' versions: in{b,w,l}_p/out{b,w,l}_p
- * and 'string' versions: ins{b,w,l}/outs{b,w,l}
- * For read{b,w,l} and write{b,w,l} there are also __raw versions, which
- * do not have a memory barrier after them.
- *
- * In addition, we have
- * ctrl_in{b,w,l}/ctrl_out{b,w,l} for SuperH specific I/O.
- * which are processor specific.
- */
-
-/*
- * We follow the Alpha convention here:
- * __inb expands to an inline function call (which calls via the mv)
- * _inb is a real function call (note ___raw fns are _ version of __raw)
- * inb by default expands to _inb, but the machine specific code may
- * define it to __inb if it chooses.
- */
-#include <asm/cache.h>
-#include <asm/system.h>
-#include <asm/addrspace.h>
-#include <asm/machvec.h>
-#include <asm/pgtable.h>
-#include <asm-generic/iomap.h>
-
-#ifdef __KERNEL__
-
-/*
- * Depending on which platform we are running on, we need different
- * I/O functions.
- */
-#define __IO_PREFIX generic
-#include <asm/io_generic.h>
-#include <asm/io_trapped.h>
-
-#define maybebadio(port) \
- printk(KERN_ERR "bad PC-like io %s:%u for port 0x%lx at 0x%08x\n", \
- __FUNCTION__, __LINE__, (port), (u32)__builtin_return_address(0))
-
-/*
- * Since boards are able to define their own set of I/O routines through
- * their respective machine vector, we always wrap through the mv.
- *
- * Also, in the event that a board hasn't provided its own definition for
- * a given routine, it will be wrapped to generic code at run-time.
- */
-
-#define __inb(p) sh_mv.mv_inb((p))
-#define __inw(p) sh_mv.mv_inw((p))
-#define __inl(p) sh_mv.mv_inl((p))
-#define __outb(x,p) sh_mv.mv_outb((x),(p))
-#define __outw(x,p) sh_mv.mv_outw((x),(p))
-#define __outl(x,p) sh_mv.mv_outl((x),(p))
-
-#define __inb_p(p) sh_mv.mv_inb_p((p))
-#define __inw_p(p) sh_mv.mv_inw_p((p))
-#define __inl_p(p) sh_mv.mv_inl_p((p))
-#define __outb_p(x,p) sh_mv.mv_outb_p((x),(p))
-#define __outw_p(x,p) sh_mv.mv_outw_p((x),(p))
-#define __outl_p(x,p) sh_mv.mv_outl_p((x),(p))
-
-#define __insb(p,b,c) sh_mv.mv_insb((p), (b), (c))
-#define __insw(p,b,c) sh_mv.mv_insw((p), (b), (c))
-#define __insl(p,b,c) sh_mv.mv_insl((p), (b), (c))
-#define __outsb(p,b,c) sh_mv.mv_outsb((p), (b), (c))
-#define __outsw(p,b,c) sh_mv.mv_outsw((p), (b), (c))
-#define __outsl(p,b,c) sh_mv.mv_outsl((p), (b), (c))
-
-#define __readb(a) sh_mv.mv_readb((a))
-#define __readw(a) sh_mv.mv_readw((a))
-#define __readl(a) sh_mv.mv_readl((a))
-#define __writeb(v,a) sh_mv.mv_writeb((v),(a))
-#define __writew(v,a) sh_mv.mv_writew((v),(a))
-#define __writel(v,a) sh_mv.mv_writel((v),(a))
-
-#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 __raw_readb(a) __readb((void __iomem *)(a))
-#define __raw_readw(a) __readw((void __iomem *)(a))
-#define __raw_readl(a) __readl((void __iomem *)(a))
-#define __raw_writeb(v, a) __writeb(v, (void __iomem *)(a))
-#define __raw_writew(v, a) __writew(v, (void __iomem *)(a))
-#define __raw_writel(v, a) __writel(v, (void __iomem *)(a))
-
-void __raw_writesl(unsigned long addr, const void *data, int longlen);
-void __raw_readsl(unsigned long addr, void *data, int longlen);
-
-/*
- * The platform header files may define some of these macros to use
- * the inlined versions where appropriate. These macros may also be
- * redefined by userlevel programs.
- */
-#ifdef __readb
-# define readb(a) ({ unsigned int r_ = __raw_readb(a); mb(); r_; })
-#endif
-#ifdef __raw_readw
-# define readw(a) ({ unsigned int r_ = __raw_readw(a); mb(); r_; })
-#endif
-#ifdef __raw_readl
-# define readl(a) ({ unsigned int r_ = __raw_readl(a); mb(); r_; })
-#endif
-
-#ifdef __raw_writeb
-# define writeb(v,a) ({ __raw_writeb((v),(a)); mb(); })
-#endif
-#ifdef __raw_writew
-# define writew(v,a) ({ __raw_writew((v),(a)); mb(); })
-#endif
-#ifdef __raw_writel
-# define writel(v,a) ({ __raw_writel((v),(a)); mb(); })
-#endif
-
-#define __BUILD_MEMORY_STRING(bwlq, type) \
- \
-static inline void writes##bwlq(volatile void __iomem *mem, \
- const void *addr, unsigned int count) \
-{ \
- const volatile type *__addr = addr; \
- \
- while (count--) { \
- __raw_write##bwlq(*__addr, mem); \
- __addr++; \
- } \
-} \
- \
-static inline void reads##bwlq(volatile void __iomem *mem, void *addr, \
- unsigned int count) \
-{ \
- volatile type *__addr = addr; \
- \
- while (count--) { \
- *__addr = __raw_read##bwlq(mem); \
- __addr++; \
- } \
-}
-
-__BUILD_MEMORY_STRING(b, u8)
-__BUILD_MEMORY_STRING(w, u16)
-#define writesl __raw_writesl
-#define readsl __raw_readsl
-
-#define readb_relaxed(a) readb(a)
-#define readw_relaxed(a) readw(a)
-#define readl_relaxed(a) readl(a)
-
-/* Simple MMIO */
-#define ioread8(a) readb(a)
-#define ioread16(a) readw(a)
-#define ioread16be(a) be16_to_cpu(__raw_readw((a)))
-#define ioread32(a) readl(a)
-#define ioread32be(a) be32_to_cpu(__raw_readl((a)))
-
-#define iowrite8(v,a) writeb((v),(a))
-#define iowrite16(v,a) writew((v),(a))
-#define iowrite16be(v,a) __raw_writew(cpu_to_be16((v)),(a))
-#define iowrite32(v,a) writel((v),(a))
-#define iowrite32be(v,a) __raw_writel(cpu_to_be32((v)),(a))
-
-#define ioread8_rep(a, d, c) readsb((a), (d), (c))
-#define ioread16_rep(a, d, c) readsw((a), (d), (c))
-#define ioread32_rep(a, d, c) readsl((a), (d), (c))
-
-#define iowrite8_rep(a, s, c) writesb((a), (s), (c))
-#define iowrite16_rep(a, s, c) writesw((a), (s), (c))
-#define iowrite32_rep(a, s, c) writesl((a), (s), (c))
-
-#define mmiowb() wmb() /* synco on SH-4A, otherwise a nop */
-
-#define IO_SPACE_LIMIT 0xffffffff
-
-/*
- * This function provides a method for the generic case where a board-specific
- * ioport_map simply needs to return the port + some arbitrary port base.
- *
- * We use this at board setup time to implicitly set the port base, and
- * as a result, we can use the generic ioport_map.
- */
-static inline void __set_io_port_base(unsigned long pbase)
-{
- extern unsigned long generic_io_base;
-
- generic_io_base = pbase;
-}
-
-#define __ioport_map(p, n) sh_mv.mv_ioport_map((p), (n))
-
-/* We really want to try and get these to memcpy etc */
-extern void memcpy_fromio(void *, volatile void __iomem *, unsigned long);
-extern void memcpy_toio(volatile void __iomem *, const void *, unsigned long);
-extern void memset_io(volatile void __iomem *, int, unsigned long);
-
-/* SuperH on-chip I/O functions */
-static inline unsigned char ctrl_inb(unsigned long addr)
-{
- return *(volatile unsigned char*)addr;
-}
-
-static inline unsigned short ctrl_inw(unsigned long addr)
-{
- return *(volatile unsigned short*)addr;
-}
-
-static inline unsigned int ctrl_inl(unsigned long addr)
-{
- return *(volatile unsigned long*)addr;
-}
-
-static inline unsigned long long ctrl_inq(unsigned long addr)
-{
- return *(volatile unsigned long long*)addr;
-}
-
-static inline void ctrl_outb(unsigned char b, unsigned long addr)
-{
- *(volatile unsigned char*)addr = b;
-}
-
-static inline void ctrl_outw(unsigned short b, unsigned long addr)
-{
- *(volatile unsigned short*)addr = b;
-}
-
-static inline void ctrl_outl(unsigned int b, unsigned long addr)
-{
- *(volatile unsigned long*)addr = b;
-}
-
-static inline void ctrl_outq(unsigned long long b, unsigned long addr)
-{
- *(volatile unsigned long long*)addr = b;
-}
-
-static inline void ctrl_delay(void)
-{
-#ifdef P2SEG
- ctrl_inw(P2SEG);
-#endif
-}
-
-/* Quad-word real-mode I/O, don't ask.. */
-unsigned long long peek_real_address_q(unsigned long long addr);
-unsigned long long poke_real_address_q(unsigned long long addr,
- unsigned long long val);
-
-#if !defined(CONFIG_MMU)
-#define virt_to_phys(address) ((unsigned long)(address))
-#define phys_to_virt(address) ((void *)(address))
-#else
-#define virt_to_phys(address) (__pa(address))
-#define phys_to_virt(address) (__va(address))
-#endif
-
-/*
- * On 32-bit SH, we traditionally have the whole physical address space
- * mapped at all times (as MIPS does), so "ioremap()" and "iounmap()" do
- * not need to do anything but place the address in the proper segment.
- * This is true for P1 and P2 addresses, as well as some P3 ones.
- * However, most of the P3 addresses and newer cores using extended
- * addressing need to map through page tables, so the ioremap()
- * implementation becomes a bit more complicated.
- *
- * See arch/sh/mm/ioremap.c for additional notes on this.
- *
- * We cheat a bit and always return uncachable areas until we've fixed
- * the drivers to handle caching properly.
- *
- * On the SH-5 the concept of segmentation in the 1:1 PXSEG sense simply
- * doesn't exist, so everything must go through page tables.
- */
-#ifdef CONFIG_MMU
-void __iomem *__ioremap(unsigned long offset, unsigned long size,
- unsigned long flags);
-void __iounmap(void __iomem *addr);
-
-/* arch/sh/mm/ioremap_64.c */
-unsigned long onchip_remap(unsigned long addr, unsigned long size,
- const char *name);
-extern void onchip_unmap(unsigned long vaddr);
-#else
-#define __ioremap(offset, size, flags) ((void __iomem *)(offset))
-#define __iounmap(addr) do { } while (0)
-#define onchip_remap(addr, size, name) (addr)
-#define onchip_unmap(addr) do { } while (0)
-#endif /* CONFIG_MMU */
-
-static inline void __iomem *
-__ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
-{
-#ifdef CONFIG_SUPERH32
- unsigned long last_addr = offset + size - 1;
-#endif
- void __iomem *ret;
-
- ret = __ioremap_trapped(offset, size);
- if (ret)
- return ret;
-
-#ifdef CONFIG_SUPERH32
- /*
- * For P1 and P2 space this is trivial, as everything is already
- * mapped. Uncached access for P1 addresses are done through P2.
- * In the P3 case or for addresses outside of the 29-bit space,
- * mapping must be done by the PMB or by using page tables.
- */
- if (likely(PXSEG(offset) < P3SEG && PXSEG(last_addr) < P3SEG)) {
- if (unlikely(flags & _PAGE_CACHABLE))
- return (void __iomem *)P1SEGADDR(offset);
-
- return (void __iomem *)P2SEGADDR(offset);
- }
-#endif
-
- return __ioremap(offset, size, flags);
-}
-
-#define ioremap(offset, size) \
- __ioremap_mode((offset), (size), 0)
-#define ioremap_nocache(offset, size) \
- __ioremap_mode((offset), (size), 0)
-#define ioremap_cache(offset, size) \
- __ioremap_mode((offset), (size), _PAGE_CACHABLE)
-#define p3_ioremap(offset, size, flags) \
- __ioremap((offset), (size), (flags))
-#define iounmap(addr) \
- __iounmap((addr))
-
-/*
- * 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_SH_IO_H */
projects / karo-tx-linux.git / blobdiff