| #ifndef _ASM_IO_H |
| #define _ASM_IO_H |
| |
| /* USE_HPPA_IOREMAP IS THE MAGIC FLAG TO ENABLE OR DISABLE REAL IOREMAP() FUNCTIONALITY */ |
| /* FOR 712 or 715 MACHINES THIS SHOULD BE ENABLED, |
| NEWER MACHINES STILL HAVE SOME ISSUES IN THE SCSI AND/OR NETWORK DRIVERS AND |
| BECAUSE OF THAT I WILL LEAVE IT DISABLED FOR NOW <deller@gmx.de> */ |
| /* WHEN THOSE ISSUES ARE SOLVED, USE_HPPA_IOREMAP WILL GO AWAY */ |
| #define USE_HPPA_IOREMAP 0 |
| |
| |
| #include <linux/config.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 |
| |
| /* Memory mapped IO */ |
| |
| extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags); |
| |
| extern inline void * ioremap(unsigned long offset, unsigned long size) |
| { |
| return __ioremap(offset, size, 0); |
| } |
| |
| /* |
| * This one maps high address device memory and turns off caching for that area. |
| * it's useful if some control registers are in such an area and write combining |
| * or read caching is not desirable: |
| */ |
| extern inline void * ioremap_nocache(unsigned long offset, unsigned long size) |
| { |
| return __ioremap(offset, size, _PAGE_NO_CACHE /* _PAGE_PCD */); |
| } |
| |
| extern void iounmap(void *addr); |
| |
| /* |
| * __raw_ variants have no defined meaning. on hppa, it means `i was |
| * too lazy to ioremap first'. kind of like isa_, except that there's |
| * no additional base address to add on. |
| */ |
| #define __raw_readb(a) ___raw_readb((unsigned long)(a)) |
| extern __inline__ unsigned char ___raw_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; |
| } |
| |
| #define __raw_readw(a) ___raw_readw((unsigned long)(a)) |
| extern __inline__ unsigned short ___raw_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; |
| } |
| |
| #define __raw_readl(a) ___raw_readl((unsigned long)(a)) |
| extern __inline__ unsigned int ___raw_readl(unsigned long addr) |
| { |
| u32 ret; |
| |
| __asm__ __volatile__( |
| " ldwax 0(%1),%0\n" |
| : "=r" (ret) : "r" (addr) ); |
| |
| return ret; |
| } |
| |
| #define __raw_readq(a) ___raw_readq((unsigned long)(a)) |
| extern __inline__ unsigned long long ___raw_readq(unsigned long addr) |
| { |
| unsigned long long ret; |
| #ifdef __LP64__ |
| __asm__ __volatile__( |
| " ldda 0(%1),%0\n" |
| : "=r" (ret) : "r" (addr) ); |
| #else |
| /* two reads may have side effects.. */ |
| ret = ((u64) __raw_readl(addr)) << 32; |
| ret |= __raw_readl(addr+4); |
| #endif |
| return ret; |
| } |
| |
| #define __raw_writeb(a,b) ___raw_writeb(a, (unsigned long)(b)) |
| extern __inline__ void ___raw_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) ); |
| } |
| |
| #define __raw_writew(a,b) ___raw_writew(a, (unsigned long)(b)) |
| extern __inline__ void ___raw_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) ); |
| } |
| |
| #define __raw_writel(a,b) ___raw_writel(a, (unsigned long)(b)) |
| extern __inline__ void ___raw_writel(unsigned int val, unsigned long addr) |
| { |
| __asm__ __volatile__( |
| " stwas %0,0(%1)\n" |
| : : "r" (val), "r" (addr) ); |
| } |
| |
| #define __raw_writeq(a,b) ___raw_writeq(a, (unsigned long)(b)) |
| extern __inline__ void ___raw_writeq(unsigned long long val, unsigned long addr) |
| { |
| #ifdef __LP64__ |
| __asm__ __volatile__( |
| " stda %0,0(%1)\n" |
| : : "r" (val), "r" (addr) ); |
| #else |
| /* two writes may have side effects.. */ |
| __raw_writel(val >> 32, addr); |
| __raw_writel(val, addr+4); |
| #endif |
| } |
| |
| #if USE_HPPA_IOREMAP |
| #define readb(addr) (*(volatile unsigned char *) (addr)) |
| #define readw(addr) (*(volatile unsigned short *) (addr)) |
| #define readl(addr) (*(volatile unsigned int *) (addr)) |
| #define readq(addr) (*(volatile u64 *) (addr)) |
| #define writeb(b,addr) (*(volatile unsigned char *) (addr) = (b)) |
| #define writew(b,addr) (*(volatile unsigned short *) (addr) = (b)) |
| #define writel(b,addr) (*(volatile unsigned int *) (addr) = (b)) |
| #define writeq(b,addr) (*(volatile u64 *) (addr) = (b)) |
| #else /* !USE_HPPA_IOREMAP */ |
| #define readb(addr) __raw_readb(addr) |
| #define readw(addr) le16_to_cpu(__raw_readw(addr)) |
| #define readl(addr) le32_to_cpu(__raw_readl(addr)) |
| #define readq(addr) le64_to_cpu(__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) |
| #endif /* !USE_HPPA_IOREMAP */ |
| |
| #define readb_relaxed(addr) readb(addr) |
| #define readw_relaxed(addr) readw(addr) |
| #define readl_relaxed(addr) readl(addr) |
| #define readq_relaxed(addr) readq(addr) |
| |
| extern void __memcpy_fromio(unsigned long dest, unsigned long src, int count); |
| extern void __memcpy_toio(unsigned long dest, unsigned long src, int count); |
| extern void __memset_io(unsigned long dest, char fill, int count); |
| |
| #define memcpy_fromio(a,b,c) __memcpy_fromio((unsigned long)(a), (unsigned long)(b), (c)) |
| #define memcpy_toio(a,b,c) __memcpy_toio((unsigned long)(a), (unsigned long)(b), (c)) |
| #define memset_io(a,b,c) __memset_io((unsigned long)(a), (b), (c)) |
| |
| /* Support old drivers which don't ioremap. |
| * NB this interface is scheduled to disappear in 2.5 |
| */ |
| |
| #define EISA_BASE 0xfffffffffc000000UL |
| #define isa_readb(a) readb(EISA_BASE | (a)) |
| #define isa_readw(a) readw(EISA_BASE | (a)) |
| #define isa_readl(a) readl(EISA_BASE | (a)) |
| #define isa_writeb(b,a) writeb((b), EISA_BASE | (a)) |
| #define isa_writew(b,a) writew((b), EISA_BASE | (a)) |
| #define isa_writel(b,a) writel((b), EISA_BASE | (a)) |
| #define isa_memset_io(a,b,c) memset_io(EISA_BASE | (a), (b), (c)) |
| #define isa_memcpy_fromio(a,b,c) memcpy_fromio((a), EISA_BASE | (b), (c)) |
| #define isa_memcpy_toio(a,b,c) memcpy_toio(EISA_BASE | (a), (b), (c)) |
| |
| /* |
| * These functions support PA-RISC drivers which don't yet call ioremap(). |
| * They will disappear once the last of these drivers is gone. |
| */ |
| #define gsc_readb(x) __raw_readb(x) |
| #define gsc_readw(x) __raw_readw(x) |
| #define gsc_readl(x) __raw_readl(x) |
| #define gsc_writeb(x, y) __raw_writeb(x, y) |
| #define gsc_writew(x, y) __raw_writew(x, y) |
| #define gsc_writel(x, y) __raw_writel(x, y) |
| |
| |
| /* |
| * XXX - We don't have csum_partial_copy_fromio() yet, so we cheat here and |
| * just copy it. The net code will then do the checksum later. Presently |
| * only used by some shared memory 8390 Ethernet cards anyway. |
| */ |
| |
| #define eth_io_copy_and_sum(skb,src,len,unused) \ |
| memcpy_fromio((skb)->data,(src),(len)) |
| #define isa_eth_io_copy_and_sum(skb,src,len,unused) \ |
| isa_memcpy_fromio((skb)->data,(src),(len)) |
| |
| /* 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 |
| |
| |
| #define dma_cache_inv(_start,_size) do { flush_kernel_dcache_range(_start,_size); } while (0) |
| #define dma_cache_wback(_start,_size) do { flush_kernel_dcache_range(_start,_size); } while (0) |
| #define dma_cache_wback_inv(_start,_size) do { flush_kernel_dcache_range(_start,_size); } while (0) |
| |
| /* 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))) |
| |
| #endif |