diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/include/asm/io.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/x86/include/asm/io.h | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/ANDROID_3.4.5/arch/x86/include/asm/io.h b/ANDROID_3.4.5/arch/x86/include/asm/io.h deleted file mode 100644 index d8e8eefb..00000000 --- a/ANDROID_3.4.5/arch/x86/include/asm/io.h +++ /dev/null @@ -1,348 +0,0 @@ -#ifndef _ASM_X86_IO_H -#define _ASM_X86_IO_H - -/* - * This file contains the definitions for the x86 IO instructions - * inb/inw/inl/outb/outw/outl and the "string versions" of the same - * (insb/insw/insl/outsb/outsw/outsl). You can also use "pausing" - * versions of the single-IO instructions (inb_p/inw_p/..). - * - * This file is not meant to be obfuscating: it's just complicated - * to (a) handle it all in a way that makes gcc able to optimize it - * as well as possible and (b) trying to avoid writing the same thing - * over and over again with slight variations and possibly making a - * mistake somewhere. - */ - -/* - * Thanks to James van Artsdalen for a better timing-fix than - * the two short jumps: using outb's to a nonexistent port seems - * to guarantee better timings even on fast machines. - * - * On the other hand, I'd like to be sure of a non-existent port: - * I feel a bit unsafe about using 0x80 (should be safe, though) - * - * Linus - */ - - /* - * Bit simplified and optimized by Jan Hubicka - * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999. - * - * isa_memset_io, isa_memcpy_fromio, isa_memcpy_toio added, - * isa_read[wl] and isa_write[wl] fixed - * - Arnaldo Carvalho de Melo <acme@conectiva.com.br> - */ - -#define ARCH_HAS_IOREMAP_WC - -#include <linux/string.h> -#include <linux/compiler.h> -#include <asm/page.h> - -#define build_mmio_read(name, size, type, reg, barrier) \ -static inline type name(const volatile void __iomem *addr) \ -{ type ret; asm volatile("mov" size " %1,%0":reg (ret) \ -:"m" (*(volatile type __force *)addr) barrier); return ret; } - -#define build_mmio_write(name, size, type, reg, barrier) \ -static inline void name(type val, volatile void __iomem *addr) \ -{ asm volatile("mov" size " %0,%1": :reg (val), \ -"m" (*(volatile type __force *)addr) barrier); } - -build_mmio_read(readb, "b", unsigned char, "=q", :"memory") -build_mmio_read(readw, "w", unsigned short, "=r", :"memory") -build_mmio_read(readl, "l", unsigned int, "=r", :"memory") - -build_mmio_read(__readb, "b", unsigned char, "=q", ) -build_mmio_read(__readw, "w", unsigned short, "=r", ) -build_mmio_read(__readl, "l", unsigned int, "=r", ) - -build_mmio_write(writeb, "b", unsigned char, "q", :"memory") -build_mmio_write(writew, "w", unsigned short, "r", :"memory") -build_mmio_write(writel, "l", unsigned int, "r", :"memory") - -build_mmio_write(__writeb, "b", unsigned char, "q", ) -build_mmio_write(__writew, "w", unsigned short, "r", ) -build_mmio_write(__writel, "l", unsigned int, "r", ) - -#define readb_relaxed(a) __readb(a) -#define readw_relaxed(a) __readw(a) -#define readl_relaxed(a) __readl(a) -#define __raw_readb __readb -#define __raw_readw __readw -#define __raw_readl __readl - -#define __raw_writeb __writeb -#define __raw_writew __writew -#define __raw_writel __writel - -#define mmiowb() barrier() - -#ifdef CONFIG_X86_64 - -build_mmio_read(readq, "q", unsigned long, "=r", :"memory") -build_mmio_write(writeq, "q", unsigned long, "r", :"memory") - -#define readq_relaxed(a) readq(a) - -#define __raw_readq(a) readq(a) -#define __raw_writeq(val, addr) writeq(val, addr) - -/* Let people know that we have them */ -#define readq readq -#define writeq writeq - -#endif - -/** - * 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 phys_addr_t 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(phys_addr_t address) -{ - return __va(address); -} - -/* - * Change "struct page" to physical address. - */ -#define page_to_phys(page) ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT) - -/* - * ISA I/O bus memory addresses are 1:1 with the physical address. - * However, we truncate the address to unsigned int to avoid undesirable - * promitions in legacy drivers. - */ -static inline unsigned int isa_virt_to_bus(volatile void *address) -{ - return (unsigned int)virt_to_phys(address); -} -#define isa_page_to_bus(page) ((unsigned int)page_to_phys(page)) -#define isa_bus_to_virt phys_to_virt - -/* - * However PCI ones are not necessarily 1:1 and therefore these interfaces - * are forbidden in portable PCI drivers. - * - * Allow them on x86 for legacy drivers, though. - */ -#define virt_to_bus virt_to_phys -#define bus_to_virt phys_to_virt - -/** - * 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. - * - * If the area you are trying to map is a PCI BAR you should have a - * look at pci_iomap(). - */ -extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size); -extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size); -extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size, - unsigned long prot_val); - -/* - * The default ioremap() behavior is non-cached: - */ -static inline void __iomem *ioremap(resource_size_t offset, unsigned long size) -{ - return ioremap_nocache(offset, size); -} - -extern void iounmap(volatile void __iomem *addr); - -extern void set_iounmap_nonlazy(void); - -#ifdef __KERNEL__ - -#include <asm-generic/iomap.h> - -#include <linux/vmalloc.h> - -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - -static inline void -memset_io(volatile void __iomem *addr, unsigned char val, size_t count) -{ - memset((void __force *)addr, val, count); -} - -static inline void -memcpy_fromio(void *dst, const volatile void __iomem *src, size_t count) -{ - memcpy(dst, (const void __force *)src, count); -} - -static inline void -memcpy_toio(volatile void __iomem *dst, const void *src, size_t count) -{ - memcpy((void __force *)dst, src, count); -} - -/* - * ISA space is 'always mapped' on a typical x86 system, no need to - * explicitly ioremap() it. The fact that the ISA IO space is mapped - * to PAGE_OFFSET is pure coincidence - it does not mean ISA values - * are physical addresses. The following constant pointer can be - * used as the IO-area pointer (it can be iounmapped as well, so the - * analogy with PCI is quite large): - */ -#define __ISA_IO_base ((char __iomem *)(PAGE_OFFSET)) - -/* - * Cache management - * - * This needed for two cases - * 1. Out of order aware processors - * 2. Accidentally out of order processors (PPro errata #51) - */ - -static inline void flush_write_buffers(void) -{ -#if defined(CONFIG_X86_OOSTORE) || defined(CONFIG_X86_PPRO_FENCE) - asm volatile("lock; addl $0,0(%%esp)": : :"memory"); -#endif -} - -#endif /* __KERNEL__ */ - -extern void native_io_delay(void); - -extern int io_delay_type; -extern void io_delay_init(void); - -#if defined(CONFIG_PARAVIRT) -#include <asm/paravirt.h> -#else - -static inline void slow_down_io(void) -{ - native_io_delay(); -#ifdef REALLY_SLOW_IO - native_io_delay(); - native_io_delay(); - native_io_delay(); -#endif -} - -#endif - -#define BUILDIO(bwl, bw, type) \ -static inline void out##bwl(unsigned type value, int port) \ -{ \ - asm volatile("out" #bwl " %" #bw "0, %w1" \ - : : "a"(value), "Nd"(port)); \ -} \ - \ -static inline unsigned type in##bwl(int port) \ -{ \ - unsigned type value; \ - asm volatile("in" #bwl " %w1, %" #bw "0" \ - : "=a"(value) : "Nd"(port)); \ - return value; \ -} \ - \ -static inline void out##bwl##_p(unsigned type value, int port) \ -{ \ - out##bwl(value, port); \ - slow_down_io(); \ -} \ - \ -static inline unsigned type in##bwl##_p(int port) \ -{ \ - unsigned type value = in##bwl(port); \ - slow_down_io(); \ - return value; \ -} \ - \ -static inline void outs##bwl(int port, const void *addr, unsigned long count) \ -{ \ - asm volatile("rep; outs" #bwl \ - : "+S"(addr), "+c"(count) : "d"(port)); \ -} \ - \ -static inline void ins##bwl(int port, void *addr, unsigned long count) \ -{ \ - asm volatile("rep; ins" #bwl \ - : "+D"(addr), "+c"(count) : "d"(port)); \ -} - -BUILDIO(b, b, char) -BUILDIO(w, w, short) -BUILDIO(l, , int) - -extern void *xlate_dev_mem_ptr(unsigned long phys); -extern void unxlate_dev_mem_ptr(unsigned long phys, void *addr); - -extern int ioremap_change_attr(unsigned long vaddr, unsigned long size, - unsigned long prot_val); -extern void __iomem *ioremap_wc(resource_size_t offset, unsigned long size); - -/* - * early_ioremap() and early_iounmap() are for temporary early boot-time - * mappings, before the real ioremap() is functional. - * A boot-time mapping is currently limited to at most 16 pages. - */ -extern void early_ioremap_init(void); -extern void early_ioremap_reset(void); -extern void __iomem *early_ioremap(resource_size_t phys_addr, - unsigned long size); -extern void __iomem *early_memremap(resource_size_t phys_addr, - unsigned long size); -extern void early_iounmap(void __iomem *addr, unsigned long size); -extern void fixup_early_ioremap(void); -extern bool is_early_ioremap_ptep(pte_t *ptep); - -#ifdef CONFIG_XEN -#include <xen/xen.h> -struct bio_vec; - -extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1, - const struct bio_vec *vec2); - -#define BIOVEC_PHYS_MERGEABLE(vec1, vec2) \ - (__BIOVEC_PHYS_MERGEABLE(vec1, vec2) && \ - (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2))) -#endif /* CONFIG_XEN */ - -#define IO_SPACE_LIMIT 0xffff - -#endif /* _ASM_X86_IO_H */ |