diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/parisc/lib/iomap.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/parisc/lib/iomap.c | 464 |
1 files changed, 0 insertions, 464 deletions
diff --git a/ANDROID_3.4.5/arch/parisc/lib/iomap.c b/ANDROID_3.4.5/arch/parisc/lib/iomap.c deleted file mode 100644 index fb8e10a4..00000000 --- a/ANDROID_3.4.5/arch/parisc/lib/iomap.c +++ /dev/null @@ -1,464 +0,0 @@ -/* - * iomap.c - Implement iomap interface for PA-RISC - * Copyright (c) 2004 Matthew Wilcox - */ - -#include <linux/ioport.h> -#include <linux/pci.h> -#include <linux/export.h> -#include <asm/io.h> - -/* - * The iomap space on 32-bit PA-RISC is intended to look like this: - * 00000000-7fffffff virtual mapped IO - * 80000000-8fffffff ISA/EISA port space that can't be virtually mapped - * 90000000-9fffffff Dino port space - * a0000000-afffffff Astro port space - * b0000000-bfffffff PAT port space - * c0000000-cfffffff non-swapped memory IO - * f0000000-ffffffff legacy IO memory pointers - * - * For the moment, here's what it looks like: - * 80000000-8fffffff All ISA/EISA port space - * f0000000-ffffffff legacy IO memory pointers - * - * On 64-bit, everything is extended, so: - * 8000000000000000-8fffffffffffffff All ISA/EISA port space - * f000000000000000-ffffffffffffffff legacy IO memory pointers - */ - -/* - * Technically, this should be 'if (VMALLOC_START < addr < VMALLOC_END), - * but that's slow and we know it'll be within the first 2GB. - */ -#ifdef CONFIG_64BIT -#define INDIRECT_ADDR(addr) (((unsigned long)(addr) & 1UL<<63) != 0) -#define ADDR_TO_REGION(addr) (((unsigned long)addr >> 60) & 7) -#define IOPORT_MAP_BASE (8UL << 60) -#else -#define INDIRECT_ADDR(addr) (((unsigned long)(addr) & 1UL<<31) != 0) -#define ADDR_TO_REGION(addr) (((unsigned long)addr >> 28) & 7) -#define IOPORT_MAP_BASE (8UL << 28) -#endif - -struct iomap_ops { - unsigned int (*read8)(void __iomem *); - unsigned int (*read16)(void __iomem *); - unsigned int (*read16be)(void __iomem *); - unsigned int (*read32)(void __iomem *); - unsigned int (*read32be)(void __iomem *); - void (*write8)(u8, void __iomem *); - void (*write16)(u16, void __iomem *); - void (*write16be)(u16, void __iomem *); - void (*write32)(u32, void __iomem *); - void (*write32be)(u32, void __iomem *); - void (*read8r)(void __iomem *, void *, unsigned long); - void (*read16r)(void __iomem *, void *, unsigned long); - void (*read32r)(void __iomem *, void *, unsigned long); - void (*write8r)(void __iomem *, const void *, unsigned long); - void (*write16r)(void __iomem *, const void *, unsigned long); - void (*write32r)(void __iomem *, const void *, unsigned long); -}; - -/* Generic ioport ops. To be replaced later by specific dino/elroy/wax code */ - -#define ADDR2PORT(addr) ((unsigned long __force)(addr) & 0xffffff) - -static unsigned int ioport_read8(void __iomem *addr) -{ - return inb(ADDR2PORT(addr)); -} - -static unsigned int ioport_read16(void __iomem *addr) -{ - return inw(ADDR2PORT(addr)); -} - -static unsigned int ioport_read32(void __iomem *addr) -{ - return inl(ADDR2PORT(addr)); -} - -static void ioport_write8(u8 datum, void __iomem *addr) -{ - outb(datum, ADDR2PORT(addr)); -} - -static void ioport_write16(u16 datum, void __iomem *addr) -{ - outw(datum, ADDR2PORT(addr)); -} - -static void ioport_write32(u32 datum, void __iomem *addr) -{ - outl(datum, ADDR2PORT(addr)); -} - -static void ioport_read8r(void __iomem *addr, void *dst, unsigned long count) -{ - insb(ADDR2PORT(addr), dst, count); -} - -static void ioport_read16r(void __iomem *addr, void *dst, unsigned long count) -{ - insw(ADDR2PORT(addr), dst, count); -} - -static void ioport_read32r(void __iomem *addr, void *dst, unsigned long count) -{ - insl(ADDR2PORT(addr), dst, count); -} - -static void ioport_write8r(void __iomem *addr, const void *s, unsigned long n) -{ - outsb(ADDR2PORT(addr), s, n); -} - -static void ioport_write16r(void __iomem *addr, const void *s, unsigned long n) -{ - outsw(ADDR2PORT(addr), s, n); -} - -static void ioport_write32r(void __iomem *addr, const void *s, unsigned long n) -{ - outsl(ADDR2PORT(addr), s, n); -} - -static const struct iomap_ops ioport_ops = { - ioport_read8, - ioport_read16, - ioport_read16, - ioport_read32, - ioport_read32, - ioport_write8, - ioport_write16, - ioport_write16, - ioport_write32, - ioport_write32, - ioport_read8r, - ioport_read16r, - ioport_read32r, - ioport_write8r, - ioport_write16r, - ioport_write32r, -}; - -/* Legacy I/O memory ops */ - -static unsigned int iomem_read8(void __iomem *addr) -{ - return readb(addr); -} - -static unsigned int iomem_read16(void __iomem *addr) -{ - return readw(addr); -} - -static unsigned int iomem_read16be(void __iomem *addr) -{ - return __raw_readw(addr); -} - -static unsigned int iomem_read32(void __iomem *addr) -{ - return readl(addr); -} - -static unsigned int iomem_read32be(void __iomem *addr) -{ - return __raw_readl(addr); -} - -static void iomem_write8(u8 datum, void __iomem *addr) -{ - writeb(datum, addr); -} - -static void iomem_write16(u16 datum, void __iomem *addr) -{ - writew(datum, addr); -} - -static void iomem_write16be(u16 datum, void __iomem *addr) -{ - __raw_writew(datum, addr); -} - -static void iomem_write32(u32 datum, void __iomem *addr) -{ - writel(datum, addr); -} - -static void iomem_write32be(u32 datum, void __iomem *addr) -{ - __raw_writel(datum, addr); -} - -static void iomem_read8r(void __iomem *addr, void *dst, unsigned long count) -{ - while (count--) { - *(u8 *)dst = __raw_readb(addr); - dst++; - } -} - -static void iomem_read16r(void __iomem *addr, void *dst, unsigned long count) -{ - while (count--) { - *(u16 *)dst = __raw_readw(addr); - dst += 2; - } -} - -static void iomem_read32r(void __iomem *addr, void *dst, unsigned long count) -{ - while (count--) { - *(u32 *)dst = __raw_readl(addr); - dst += 4; - } -} - -static void iomem_write8r(void __iomem *addr, const void *s, unsigned long n) -{ - while (n--) { - __raw_writeb(*(u8 *)s, addr); - s++; - } -} - -static void iomem_write16r(void __iomem *addr, const void *s, unsigned long n) -{ - while (n--) { - __raw_writew(*(u16 *)s, addr); - s += 2; - } -} - -static void iomem_write32r(void __iomem *addr, const void *s, unsigned long n) -{ - while (n--) { - __raw_writel(*(u32 *)s, addr); - s += 4; - } -} - -static const struct iomap_ops iomem_ops = { - iomem_read8, - iomem_read16, - iomem_read16be, - iomem_read32, - iomem_read32be, - iomem_write8, - iomem_write16, - iomem_write16be, - iomem_write32, - iomem_write32be, - iomem_read8r, - iomem_read16r, - iomem_read32r, - iomem_write8r, - iomem_write16r, - iomem_write32r, -}; - -static const struct iomap_ops *iomap_ops[8] = { - [0] = &ioport_ops, - [7] = &iomem_ops -}; - - -unsigned int ioread8(void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) - return iomap_ops[ADDR_TO_REGION(addr)]->read8(addr); - return *((u8 *)addr); -} - -unsigned int ioread16(void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) - return iomap_ops[ADDR_TO_REGION(addr)]->read16(addr); - return le16_to_cpup((u16 *)addr); -} - -unsigned int ioread16be(void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) - return iomap_ops[ADDR_TO_REGION(addr)]->read16be(addr); - return *((u16 *)addr); -} - -unsigned int ioread32(void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) - return iomap_ops[ADDR_TO_REGION(addr)]->read32(addr); - return le32_to_cpup((u32 *)addr); -} - -unsigned int ioread32be(void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) - return iomap_ops[ADDR_TO_REGION(addr)]->read32be(addr); - return *((u32 *)addr); -} - -void iowrite8(u8 datum, void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->write8(datum, addr); - } else { - *((u8 *)addr) = datum; - } -} - -void iowrite16(u16 datum, void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->write16(datum, addr); - } else { - *((u16 *)addr) = cpu_to_le16(datum); - } -} - -void iowrite16be(u16 datum, void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->write16be(datum, addr); - } else { - *((u16 *)addr) = datum; - } -} - -void iowrite32(u32 datum, void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->write32(datum, addr); - } else { - *((u32 *)addr) = cpu_to_le32(datum); - } -} - -void iowrite32be(u32 datum, void __iomem *addr) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->write32be(datum, addr); - } else { - *((u32 *)addr) = datum; - } -} - -/* Repeating interfaces */ - -void ioread8_rep(void __iomem *addr, void *dst, unsigned long count) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->read8r(addr, dst, count); - } else { - while (count--) { - *(u8 *)dst = *(u8 *)addr; - dst++; - } - } -} - -void ioread16_rep(void __iomem *addr, void *dst, unsigned long count) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->read16r(addr, dst, count); - } else { - while (count--) { - *(u16 *)dst = *(u16 *)addr; - dst += 2; - } - } -} - -void ioread32_rep(void __iomem *addr, void *dst, unsigned long count) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->read32r(addr, dst, count); - } else { - while (count--) { - *(u32 *)dst = *(u32 *)addr; - dst += 4; - } - } -} - -void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->write8r(addr, src, count); - } else { - while (count--) { - *(u8 *)addr = *(u8 *)src; - src++; - } - } -} - -void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->write16r(addr, src, count); - } else { - while (count--) { - *(u16 *)addr = *(u16 *)src; - src += 2; - } - } -} - -void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count) -{ - if (unlikely(INDIRECT_ADDR(addr))) { - iomap_ops[ADDR_TO_REGION(addr)]->write32r(addr, src, count); - } else { - while (count--) { - *(u32 *)addr = *(u32 *)src; - src += 4; - } - } -} - -/* Mapping interfaces */ - -void __iomem *ioport_map(unsigned long port, unsigned int nr) -{ - return (void __iomem *)(IOPORT_MAP_BASE | port); -} - -void ioport_unmap(void __iomem *addr) -{ - if (!INDIRECT_ADDR(addr)) { - iounmap(addr); - } -} - -void pci_iounmap(struct pci_dev *dev, void __iomem * addr) -{ - if (!INDIRECT_ADDR(addr)) { - iounmap(addr); - } -} - -EXPORT_SYMBOL(ioread8); -EXPORT_SYMBOL(ioread16); -EXPORT_SYMBOL(ioread16be); -EXPORT_SYMBOL(ioread32); -EXPORT_SYMBOL(ioread32be); -EXPORT_SYMBOL(iowrite8); -EXPORT_SYMBOL(iowrite16); -EXPORT_SYMBOL(iowrite16be); -EXPORT_SYMBOL(iowrite32); -EXPORT_SYMBOL(iowrite32be); -EXPORT_SYMBOL(ioread8_rep); -EXPORT_SYMBOL(ioread16_rep); -EXPORT_SYMBOL(ioread32_rep); -EXPORT_SYMBOL(iowrite8_rep); -EXPORT_SYMBOL(iowrite16_rep); -EXPORT_SYMBOL(iowrite32_rep); -EXPORT_SYMBOL(ioport_map); -EXPORT_SYMBOL(ioport_unmap); -EXPORT_SYMBOL(pci_iounmap); |