513 lines
13 KiB
C
513 lines
13 KiB
C
#ifndef __SPARC64_IO_H
|
|
#define __SPARC64_IO_H
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/compiler.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <asm/page.h> /* IO address mapping routines need this */
|
|
#include <asm/system.h>
|
|
#include <asm/asi.h>
|
|
|
|
/* PC crapola... */
|
|
#define __SLOW_DOWN_IO do { } while (0)
|
|
#define SLOW_DOWN_IO do { } while (0)
|
|
|
|
/* BIO layer definitions. */
|
|
extern unsigned long kern_base, kern_size;
|
|
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
|
|
|
|
static inline u8 _inb(unsigned long addr)
|
|
{
|
|
u8 ret;
|
|
|
|
__asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_inb */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u16 _inw(unsigned long addr)
|
|
{
|
|
u16 ret;
|
|
|
|
__asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_inw */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u32 _inl(unsigned long addr)
|
|
{
|
|
u32 ret;
|
|
|
|
__asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_inl */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline void _outb(u8 b, unsigned long addr)
|
|
{
|
|
__asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_outb */"
|
|
: /* no outputs */
|
|
: "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
}
|
|
|
|
static inline void _outw(u16 w, unsigned long addr)
|
|
{
|
|
__asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_outw */"
|
|
: /* no outputs */
|
|
: "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
}
|
|
|
|
static inline void _outl(u32 l, unsigned long addr)
|
|
{
|
|
__asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_outl */"
|
|
: /* no outputs */
|
|
: "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
}
|
|
|
|
#define inb(__addr) (_inb((unsigned long)(__addr)))
|
|
#define inw(__addr) (_inw((unsigned long)(__addr)))
|
|
#define inl(__addr) (_inl((unsigned long)(__addr)))
|
|
#define outb(__b, __addr) (_outb((u8)(__b), (unsigned long)(__addr)))
|
|
#define outw(__w, __addr) (_outw((u16)(__w), (unsigned long)(__addr)))
|
|
#define outl(__l, __addr) (_outl((u32)(__l), (unsigned long)(__addr)))
|
|
|
|
#define inb_p(__addr) inb(__addr)
|
|
#define outb_p(__b, __addr) outb(__b, __addr)
|
|
#define inw_p(__addr) inw(__addr)
|
|
#define outw_p(__w, __addr) outw(__w, __addr)
|
|
#define inl_p(__addr) inl(__addr)
|
|
#define outl_p(__l, __addr) outl(__l, __addr)
|
|
|
|
extern void outsb(unsigned long, const void *, unsigned long);
|
|
extern void outsw(unsigned long, const void *, unsigned long);
|
|
extern void outsl(unsigned long, const void *, unsigned long);
|
|
extern void insb(unsigned long, void *, unsigned long);
|
|
extern void insw(unsigned long, void *, unsigned long);
|
|
extern void insl(unsigned long, void *, unsigned long);
|
|
|
|
static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
|
|
{
|
|
insb((unsigned long __force)port, buf, count);
|
|
}
|
|
static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count)
|
|
{
|
|
insw((unsigned long __force)port, buf, count);
|
|
}
|
|
|
|
static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count)
|
|
{
|
|
insl((unsigned long __force)port, buf, count);
|
|
}
|
|
|
|
static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count)
|
|
{
|
|
outsb((unsigned long __force)port, buf, count);
|
|
}
|
|
|
|
static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count)
|
|
{
|
|
outsw((unsigned long __force)port, buf, count);
|
|
}
|
|
|
|
static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count)
|
|
{
|
|
outsl((unsigned long __force)port, buf, count);
|
|
}
|
|
|
|
/* Memory functions, same as I/O accesses on Ultra. */
|
|
static inline u8 _readb(const volatile void __iomem *addr)
|
|
{ u8 ret;
|
|
|
|
__asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_readb */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
return ret;
|
|
}
|
|
|
|
static inline u16 _readw(const volatile void __iomem *addr)
|
|
{ u16 ret;
|
|
|
|
__asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_readw */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u32 _readl(const volatile void __iomem *addr)
|
|
{ u32 ret;
|
|
|
|
__asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_readl */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u64 _readq(const volatile void __iomem *addr)
|
|
{ u64 ret;
|
|
|
|
__asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_readq */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline void _writeb(u8 b, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_writeb */"
|
|
: /* no outputs */
|
|
: "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
}
|
|
|
|
static inline void _writew(u16 w, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_writew */"
|
|
: /* no outputs */
|
|
: "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
}
|
|
|
|
static inline void _writel(u32 l, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_writel */"
|
|
: /* no outputs */
|
|
: "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
}
|
|
|
|
static inline void _writeq(u64 q, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_writeq */"
|
|
: /* no outputs */
|
|
: "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
|
|
: "memory");
|
|
}
|
|
|
|
#define readb(__addr) _readb(__addr)
|
|
#define readw(__addr) _readw(__addr)
|
|
#define readl(__addr) _readl(__addr)
|
|
#define readq(__addr) _readq(__addr)
|
|
#define readb_relaxed(__addr) _readb(__addr)
|
|
#define readw_relaxed(__addr) _readw(__addr)
|
|
#define readl_relaxed(__addr) _readl(__addr)
|
|
#define readq_relaxed(__addr) _readq(__addr)
|
|
#define writeb(__b, __addr) _writeb(__b, __addr)
|
|
#define writew(__w, __addr) _writew(__w, __addr)
|
|
#define writel(__l, __addr) _writel(__l, __addr)
|
|
#define writeq(__q, __addr) _writeq(__q, __addr)
|
|
|
|
/* Now versions without byte-swapping. */
|
|
static inline u8 _raw_readb(unsigned long addr)
|
|
{
|
|
u8 ret;
|
|
|
|
__asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_raw_readb */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u16 _raw_readw(unsigned long addr)
|
|
{
|
|
u16 ret;
|
|
|
|
__asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_raw_readw */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u32 _raw_readl(unsigned long addr)
|
|
{
|
|
u32 ret;
|
|
|
|
__asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_raw_readl */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u64 _raw_readq(unsigned long addr)
|
|
{
|
|
u64 ret;
|
|
|
|
__asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_raw_readq */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline void _raw_writeb(u8 b, unsigned long addr)
|
|
{
|
|
__asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_raw_writeb */"
|
|
: /* no outputs */
|
|
: "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
|
|
}
|
|
|
|
static inline void _raw_writew(u16 w, unsigned long addr)
|
|
{
|
|
__asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_raw_writew */"
|
|
: /* no outputs */
|
|
: "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
|
|
}
|
|
|
|
static inline void _raw_writel(u32 l, unsigned long addr)
|
|
{
|
|
__asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_raw_writel */"
|
|
: /* no outputs */
|
|
: "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
|
|
}
|
|
|
|
static inline void _raw_writeq(u64 q, unsigned long addr)
|
|
{
|
|
__asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_raw_writeq */"
|
|
: /* no outputs */
|
|
: "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
|
|
}
|
|
|
|
#define __raw_readb(__addr) (_raw_readb((unsigned long)(__addr)))
|
|
#define __raw_readw(__addr) (_raw_readw((unsigned long)(__addr)))
|
|
#define __raw_readl(__addr) (_raw_readl((unsigned long)(__addr)))
|
|
#define __raw_readq(__addr) (_raw_readq((unsigned long)(__addr)))
|
|
#define __raw_writeb(__b, __addr) (_raw_writeb((u8)(__b), (unsigned long)(__addr)))
|
|
#define __raw_writew(__w, __addr) (_raw_writew((u16)(__w), (unsigned long)(__addr)))
|
|
#define __raw_writel(__l, __addr) (_raw_writel((u32)(__l), (unsigned long)(__addr)))
|
|
#define __raw_writeq(__q, __addr) (_raw_writeq((u64)(__q), (unsigned long)(__addr)))
|
|
|
|
/* Valid I/O Space regions are anywhere, because each PCI bus supported
|
|
* can live in an arbitrary area of the physical address range.
|
|
*/
|
|
#define IO_SPACE_LIMIT 0xffffffffffffffffUL
|
|
|
|
/* Now, SBUS variants, only difference from PCI is that we do
|
|
* not use little-endian ASIs.
|
|
*/
|
|
static inline u8 _sbus_readb(const volatile void __iomem *addr)
|
|
{
|
|
u8 ret;
|
|
|
|
__asm__ __volatile__("lduba\t[%1] %2, %0\t/* sbus_readb */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u16 _sbus_readw(const volatile void __iomem *addr)
|
|
{
|
|
u16 ret;
|
|
|
|
__asm__ __volatile__("lduha\t[%1] %2, %0\t/* sbus_readw */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u32 _sbus_readl(const volatile void __iomem *addr)
|
|
{
|
|
u32 ret;
|
|
|
|
__asm__ __volatile__("lduwa\t[%1] %2, %0\t/* sbus_readl */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline u64 _sbus_readq(const volatile void __iomem *addr)
|
|
{
|
|
u64 ret;
|
|
|
|
__asm__ __volatile__("ldxa\t[%1] %2, %0\t/* sbus_readq */"
|
|
: "=r" (ret)
|
|
: "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
|
|
: "memory");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline void _sbus_writeb(u8 b, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__("stba\t%r0, [%1] %2\t/* sbus_writeb */"
|
|
: /* no outputs */
|
|
: "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
|
|
: "memory");
|
|
}
|
|
|
|
static inline void _sbus_writew(u16 w, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__("stha\t%r0, [%1] %2\t/* sbus_writew */"
|
|
: /* no outputs */
|
|
: "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
|
|
: "memory");
|
|
}
|
|
|
|
static inline void _sbus_writel(u32 l, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__("stwa\t%r0, [%1] %2\t/* sbus_writel */"
|
|
: /* no outputs */
|
|
: "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
|
|
: "memory");
|
|
}
|
|
|
|
static inline void _sbus_writeq(u64 l, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__("stxa\t%r0, [%1] %2\t/* sbus_writeq */"
|
|
: /* no outputs */
|
|
: "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
|
|
: "memory");
|
|
}
|
|
|
|
#define sbus_readb(__addr) _sbus_readb(__addr)
|
|
#define sbus_readw(__addr) _sbus_readw(__addr)
|
|
#define sbus_readl(__addr) _sbus_readl(__addr)
|
|
#define sbus_readq(__addr) _sbus_readq(__addr)
|
|
#define sbus_writeb(__b, __addr) _sbus_writeb(__b, __addr)
|
|
#define sbus_writew(__w, __addr) _sbus_writew(__w, __addr)
|
|
#define sbus_writel(__l, __addr) _sbus_writel(__l, __addr)
|
|
#define sbus_writeq(__l, __addr) _sbus_writeq(__l, __addr)
|
|
|
|
static inline void _sbus_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
|
|
{
|
|
while(n--) {
|
|
sbus_writeb(c, dst);
|
|
dst++;
|
|
}
|
|
}
|
|
|
|
#define sbus_memset_io(d,c,sz) _sbus_memset_io(d,c,sz)
|
|
|
|
static inline void
|
|
_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
|
|
{
|
|
volatile void __iomem *d = dst;
|
|
|
|
while (n--) {
|
|
writeb(c, d);
|
|
d++;
|
|
}
|
|
}
|
|
|
|
#define memset_io(d,c,sz) _memset_io(d,c,sz)
|
|
|
|
static inline void
|
|
_memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n)
|
|
{
|
|
char *d = dst;
|
|
|
|
while (n--) {
|
|
char tmp = readb(src);
|
|
*d++ = tmp;
|
|
src++;
|
|
}
|
|
}
|
|
|
|
#define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz)
|
|
|
|
static inline void
|
|
_memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n)
|
|
{
|
|
const char *s = src;
|
|
volatile void __iomem *d = dst;
|
|
|
|
while (n--) {
|
|
char tmp = *s++;
|
|
writeb(tmp, d);
|
|
d++;
|
|
}
|
|
}
|
|
|
|
#define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz)
|
|
|
|
#define mmiowb()
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
/* On sparc64 we have the whole physical IO address space accessible
|
|
* using physically addressed loads and stores, so this does nothing.
|
|
*/
|
|
static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
|
|
{
|
|
return (void __iomem *)offset;
|
|
}
|
|
|
|
#define ioremap_nocache(X,Y) ioremap((X),(Y))
|
|
#define ioremap_wc(X,Y) ioremap((X),(Y))
|
|
|
|
static inline void iounmap(volatile void __iomem *addr)
|
|
{
|
|
}
|
|
|
|
#define ioread8(X) readb(X)
|
|
#define ioread16(X) readw(X)
|
|
#define ioread16be(X) __raw_readw(X)
|
|
#define ioread32(X) readl(X)
|
|
#define ioread32be(X) __raw_readl(X)
|
|
#define iowrite8(val,X) writeb(val,X)
|
|
#define iowrite16(val,X) writew(val,X)
|
|
#define iowrite16be(val,X) __raw_writew(val,X)
|
|
#define iowrite32(val,X) writel(val,X)
|
|
#define iowrite32be(val,X) __raw_writel(val,X)
|
|
|
|
/* Create a virtual mapping cookie for an IO port range */
|
|
extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
|
|
extern void ioport_unmap(void __iomem *);
|
|
|
|
/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
|
|
struct pci_dev;
|
|
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
|
|
extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
|
|
|
|
static inline int sbus_can_dma_64bit(void)
|
|
{
|
|
return 1;
|
|
}
|
|
static inline int sbus_can_burst64(void)
|
|
{
|
|
return 1;
|
|
}
|
|
struct device;
|
|
extern void sbus_set_sbus64(struct device *, int);
|
|
|
|
/*
|
|
* 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
|
|
|
|
#endif /* !(__SPARC64_IO_H) */
|