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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/m68k/include/asm/io_mm.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/m68k/include/asm/io_mm.h')
-rw-r--r--kernel/arch/m68k/include/asm/io_mm.h522
1 files changed, 522 insertions, 0 deletions
diff --git a/kernel/arch/m68k/include/asm/io_mm.h b/kernel/arch/m68k/include/asm/io_mm.h
new file mode 100644
index 000000000..8955b40a5
--- /dev/null
+++ b/kernel/arch/m68k/include/asm/io_mm.h
@@ -0,0 +1,522 @@
+/*
+ * linux/include/asm-m68k/io.h
+ *
+ * 4/1/00 RZ: - rewritten to avoid clashes between ISA/PCI and other
+ * IO access
+ * - added Q40 support
+ * - added skeleton for GG-II and Amiga PCMCIA
+ * 2/3/01 RZ: - moved a few more defs into raw_io.h
+ *
+ * inX/outX should not be used by any driver unless it does
+ * ISA access. Other drivers should use function defined in raw_io.h
+ * or define its own macros on top of these.
+ *
+ * inX(),outX() are for ISA I/O
+ * isa_readX(),isa_writeX() are for ISA memory
+ */
+
+#ifndef _IO_H
+#define _IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+#include <asm/raw_io.h>
+#include <asm/virtconvert.h>
+
+#include <asm-generic/iomap.h>
+
+#ifdef CONFIG_ATARI
+#include <asm/atarihw.h>
+#endif
+
+
+/*
+ * IO/MEM definitions for various ISA bridges
+ */
+
+
+#ifdef CONFIG_Q40
+
+#define q40_isa_io_base 0xff400000
+#define q40_isa_mem_base 0xff800000
+
+#define Q40_ISA_IO_B(ioaddr) (q40_isa_io_base+1+4*((unsigned long)(ioaddr)))
+#define Q40_ISA_IO_W(ioaddr) (q40_isa_io_base+ 4*((unsigned long)(ioaddr)))
+#define Q40_ISA_MEM_B(madr) (q40_isa_mem_base+1+4*((unsigned long)(madr)))
+#define Q40_ISA_MEM_W(madr) (q40_isa_mem_base+ 4*((unsigned long)(madr)))
+
+#define MULTI_ISA 0
+#endif /* Q40 */
+
+#ifdef CONFIG_AMIGA_PCMCIA
+#include <asm/amigayle.h>
+
+#define AG_ISA_IO_B(ioaddr) ( GAYLE_IO+(ioaddr)+(((ioaddr)&1)*GAYLE_ODD) )
+#define AG_ISA_IO_W(ioaddr) ( GAYLE_IO+(ioaddr) )
+
+#ifndef MULTI_ISA
+#define MULTI_ISA 0
+#else
+#undef MULTI_ISA
+#define MULTI_ISA 1
+#endif
+#endif /* AMIGA_PCMCIA */
+
+#ifdef CONFIG_ATARI_ROM_ISA
+
+#define enec_isa_read_base 0xfffa0000
+#define enec_isa_write_base 0xfffb0000
+
+#define ENEC_ISA_IO_B(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9))
+#define ENEC_ISA_IO_W(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9))
+#define ENEC_ISA_MEM_B(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9))
+#define ENEC_ISA_MEM_W(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9))
+
+#ifndef MULTI_ISA
+#define MULTI_ISA 0
+#else
+#undef MULTI_ISA
+#define MULTI_ISA 1
+#endif
+#endif /* ATARI_ROM_ISA */
+
+
+#if defined(CONFIG_PCI) && defined(CONFIG_COLDFIRE)
+
+#define HAVE_ARCH_PIO_SIZE
+#define PIO_OFFSET 0
+#define PIO_MASK 0xffff
+#define PIO_RESERVED 0x10000
+
+u8 mcf_pci_inb(u32 addr);
+u16 mcf_pci_inw(u32 addr);
+u32 mcf_pci_inl(u32 addr);
+void mcf_pci_insb(u32 addr, u8 *buf, u32 len);
+void mcf_pci_insw(u32 addr, u16 *buf, u32 len);
+void mcf_pci_insl(u32 addr, u32 *buf, u32 len);
+
+void mcf_pci_outb(u8 v, u32 addr);
+void mcf_pci_outw(u16 v, u32 addr);
+void mcf_pci_outl(u32 v, u32 addr);
+void mcf_pci_outsb(u32 addr, const u8 *buf, u32 len);
+void mcf_pci_outsw(u32 addr, const u16 *buf, u32 len);
+void mcf_pci_outsl(u32 addr, const u32 *buf, u32 len);
+
+#define inb mcf_pci_inb
+#define inb_p mcf_pci_inb
+#define inw mcf_pci_inw
+#define inw_p mcf_pci_inw
+#define inl mcf_pci_inl
+#define inl_p mcf_pci_inl
+#define insb mcf_pci_insb
+#define insw mcf_pci_insw
+#define insl mcf_pci_insl
+
+#define outb mcf_pci_outb
+#define outb_p mcf_pci_outb
+#define outw mcf_pci_outw
+#define outw_p mcf_pci_outw
+#define outl mcf_pci_outl
+#define outl_p mcf_pci_outl
+#define outsb mcf_pci_outsb
+#define outsw mcf_pci_outsw
+#define outsl mcf_pci_outsl
+
+#define readb(addr) in_8(addr)
+#define writeb(v, addr) out_8((addr), (v))
+#define readw(addr) in_le16(addr)
+#define writew(v, addr) out_le16((addr), (v))
+
+#elif defined(CONFIG_ISA) || defined(CONFIG_ATARI_ROM_ISA)
+
+#if MULTI_ISA == 0
+#undef MULTI_ISA
+#endif
+
+#define ISA_TYPE_Q40 (1)
+#define ISA_TYPE_AG (2)
+#define ISA_TYPE_ENEC (3)
+
+#if defined(CONFIG_Q40) && !defined(MULTI_ISA)
+#define ISA_TYPE ISA_TYPE_Q40
+#define ISA_SEX 0
+#endif
+#if defined(CONFIG_AMIGA_PCMCIA) && !defined(MULTI_ISA)
+#define ISA_TYPE ISA_TYPE_AG
+#define ISA_SEX 1
+#endif
+#if defined(CONFIG_ATARI_ROM_ISA) && !defined(MULTI_ISA)
+#define ISA_TYPE ISA_TYPE_ENEC
+#define ISA_SEX 0
+#endif
+
+#ifdef MULTI_ISA
+extern int isa_type;
+extern int isa_sex;
+
+#define ISA_TYPE isa_type
+#define ISA_SEX isa_sex
+#endif
+
+/*
+ * define inline addr translation functions. Normally only one variant will
+ * be compiled in so the case statement will be optimised away
+ */
+
+static inline u8 __iomem *isa_itb(unsigned long addr)
+{
+ switch(ISA_TYPE)
+ {
+#ifdef CONFIG_Q40
+ case ISA_TYPE_Q40: return (u8 __iomem *)Q40_ISA_IO_B(addr);
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+ case ISA_TYPE_AG: return (u8 __iomem *)AG_ISA_IO_B(addr);
+#endif
+#ifdef CONFIG_ATARI_ROM_ISA
+ case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_IO_B(addr);
+#endif
+ default: return NULL; /* avoid warnings, just in case */
+ }
+}
+static inline u16 __iomem *isa_itw(unsigned long addr)
+{
+ switch(ISA_TYPE)
+ {
+#ifdef CONFIG_Q40
+ case ISA_TYPE_Q40: return (u16 __iomem *)Q40_ISA_IO_W(addr);
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+ case ISA_TYPE_AG: return (u16 __iomem *)AG_ISA_IO_W(addr);
+#endif
+#ifdef CONFIG_ATARI_ROM_ISA
+ case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_IO_W(addr);
+#endif
+ default: return NULL; /* avoid warnings, just in case */
+ }
+}
+static inline u32 __iomem *isa_itl(unsigned long addr)
+{
+ switch(ISA_TYPE)
+ {
+#ifdef CONFIG_AMIGA_PCMCIA
+ case ISA_TYPE_AG: return (u32 __iomem *)AG_ISA_IO_W(addr);
+#endif
+ default: return 0; /* avoid warnings, just in case */
+ }
+}
+static inline u8 __iomem *isa_mtb(unsigned long addr)
+{
+ switch(ISA_TYPE)
+ {
+#ifdef CONFIG_Q40
+ case ISA_TYPE_Q40: return (u8 __iomem *)Q40_ISA_MEM_B(addr);
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+ case ISA_TYPE_AG: return (u8 __iomem *)addr;
+#endif
+#ifdef CONFIG_ATARI_ROM_ISA
+ case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_MEM_B(addr);
+#endif
+ default: return NULL; /* avoid warnings, just in case */
+ }
+}
+static inline u16 __iomem *isa_mtw(unsigned long addr)
+{
+ switch(ISA_TYPE)
+ {
+#ifdef CONFIG_Q40
+ case ISA_TYPE_Q40: return (u16 __iomem *)Q40_ISA_MEM_W(addr);
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+ case ISA_TYPE_AG: return (u16 __iomem *)addr;
+#endif
+#ifdef CONFIG_ATARI_ROM_ISA
+ case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_MEM_W(addr);
+#endif
+ default: return NULL; /* avoid warnings, just in case */
+ }
+}
+
+
+#define isa_inb(port) in_8(isa_itb(port))
+#define isa_inw(port) (ISA_SEX ? in_be16(isa_itw(port)) : in_le16(isa_itw(port)))
+#define isa_inl(port) (ISA_SEX ? in_be32(isa_itl(port)) : in_le32(isa_itl(port)))
+#define isa_outb(val,port) out_8(isa_itb(port),(val))
+#define isa_outw(val,port) (ISA_SEX ? out_be16(isa_itw(port),(val)) : out_le16(isa_itw(port),(val)))
+#define isa_outl(val,port) (ISA_SEX ? out_be32(isa_itl(port),(val)) : out_le32(isa_itl(port),(val)))
+
+#define isa_readb(p) in_8(isa_mtb((unsigned long)(p)))
+#define isa_readw(p) \
+ (ISA_SEX ? in_be16(isa_mtw((unsigned long)(p))) \
+ : in_le16(isa_mtw((unsigned long)(p))))
+#define isa_writeb(val,p) out_8(isa_mtb((unsigned long)(p)),(val))
+#define isa_writew(val,p) \
+ (ISA_SEX ? out_be16(isa_mtw((unsigned long)(p)),(val)) \
+ : out_le16(isa_mtw((unsigned long)(p)),(val)))
+
+#ifdef CONFIG_ATARI_ROM_ISA
+#define isa_rom_inb(port) rom_in_8(isa_itb(port))
+#define isa_rom_inw(port) \
+ (ISA_SEX ? rom_in_be16(isa_itw(port)) \
+ : rom_in_le16(isa_itw(port)))
+
+#define isa_rom_outb(val, port) rom_out_8(isa_itb(port), (val))
+#define isa_rom_outw(val, port) \
+ (ISA_SEX ? rom_out_be16(isa_itw(port), (val)) \
+ : rom_out_le16(isa_itw(port), (val)))
+
+#define isa_rom_readb(p) rom_in_8(isa_mtb((unsigned long)(p)))
+#define isa_rom_readw(p) \
+ (ISA_SEX ? rom_in_be16(isa_mtw((unsigned long)(p))) \
+ : rom_in_le16(isa_mtw((unsigned long)(p))))
+#define isa_rom_readw_swap(p) \
+ (ISA_SEX ? rom_in_le16(isa_mtw((unsigned long)(p))) \
+ : rom_in_be16(isa_mtw((unsigned long)(p))))
+#define isa_rom_readw_raw(p) rom_in_be16(isa_mtw((unsigned long)(p)))
+
+#define isa_rom_writeb(val, p) rom_out_8(isa_mtb((unsigned long)(p)), (val))
+#define isa_rom_writew(val, p) \
+ (ISA_SEX ? rom_out_be16(isa_mtw((unsigned long)(p)), (val)) \
+ : rom_out_le16(isa_mtw((unsigned long)(p)), (val)))
+#define isa_rom_writew_swap(val, p) \
+ (ISA_SEX ? rom_out_le16(isa_mtw((unsigned long)(p)), (val)) \
+ : rom_out_be16(isa_mtw((unsigned long)(p)), (val)))
+#define isa_rom_writew_raw(val, p) rom_out_be16(isa_mtw((unsigned long)(p)), (val))
+#endif /* CONFIG_ATARI_ROM_ISA */
+
+static inline void isa_delay(void)
+{
+ switch(ISA_TYPE)
+ {
+#ifdef CONFIG_Q40
+ case ISA_TYPE_Q40: isa_outb(0,0x80); break;
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+ case ISA_TYPE_AG: break;
+#endif
+#ifdef CONFIG_ATARI_ROM_ISA
+ case ISA_TYPE_ENEC: break;
+#endif
+ default: break; /* avoid warnings */
+ }
+}
+
+#define isa_inb_p(p) ({u8 v=isa_inb(p);isa_delay();v;})
+#define isa_outb_p(v,p) ({isa_outb((v),(p));isa_delay();})
+#define isa_inw_p(p) ({u16 v=isa_inw(p);isa_delay();v;})
+#define isa_outw_p(v,p) ({isa_outw((v),(p));isa_delay();})
+#define isa_inl_p(p) ({u32 v=isa_inl(p);isa_delay();v;})
+#define isa_outl_p(v,p) ({isa_outl((v),(p));isa_delay();})
+
+#define isa_insb(port, buf, nr) raw_insb(isa_itb(port), (u8 *)(buf), (nr))
+#define isa_outsb(port, buf, nr) raw_outsb(isa_itb(port), (u8 *)(buf), (nr))
+
+#define isa_insw(port, buf, nr) \
+ (ISA_SEX ? raw_insw(isa_itw(port), (u16 *)(buf), (nr)) : \
+ raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
+
+#define isa_outsw(port, buf, nr) \
+ (ISA_SEX ? raw_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \
+ raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
+
+#define isa_insl(port, buf, nr) \
+ (ISA_SEX ? raw_insl(isa_itl(port), (u32 *)(buf), (nr)) : \
+ raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1))
+
+#define isa_outsl(port, buf, nr) \
+ (ISA_SEX ? raw_outsl(isa_itl(port), (u32 *)(buf), (nr)) : \
+ raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1))
+
+
+#ifdef CONFIG_ATARI_ROM_ISA
+#define isa_rom_inb_p(p) ({ u8 _v = isa_rom_inb(p); isa_delay(); _v; })
+#define isa_rom_inw_p(p) ({ u16 _v = isa_rom_inw(p); isa_delay(); _v; })
+#define isa_rom_outb_p(v, p) ({ isa_rom_outb((v), (p)); isa_delay(); })
+#define isa_rom_outw_p(v, p) ({ isa_rom_outw((v), (p)); isa_delay(); })
+
+#define isa_rom_insb(port, buf, nr) raw_rom_insb(isa_itb(port), (u8 *)(buf), (nr))
+
+#define isa_rom_insw(port, buf, nr) \
+ (ISA_SEX ? raw_rom_insw(isa_itw(port), (u16 *)(buf), (nr)) : \
+ raw_rom_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
+
+#define isa_rom_outsb(port, buf, nr) raw_rom_outsb(isa_itb(port), (u8 *)(buf), (nr))
+
+#define isa_rom_outsw(port, buf, nr) \
+ (ISA_SEX ? raw_rom_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \
+ raw_rom_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
+#endif /* CONFIG_ATARI_ROM_ISA */
+
+#endif /* CONFIG_ISA || CONFIG_ATARI_ROM_ISA */
+
+
+#if defined(CONFIG_ISA) && !defined(CONFIG_ATARI_ROM_ISA)
+#define inb isa_inb
+#define inb_p isa_inb_p
+#define outb isa_outb
+#define outb_p isa_outb_p
+#define inw isa_inw
+#define inw_p isa_inw_p
+#define outw isa_outw
+#define outw_p isa_outw_p
+#define inl isa_inl
+#define inl_p isa_inl_p
+#define outl isa_outl
+#define outl_p isa_outl_p
+#define insb isa_insb
+#define insw isa_insw
+#define insl isa_insl
+#define outsb isa_outsb
+#define outsw isa_outsw
+#define outsl isa_outsl
+#define readb isa_readb
+#define readw isa_readw
+#define writeb isa_writeb
+#define writew isa_writew
+#endif /* CONFIG_ISA && !CONFIG_ATARI_ROM_ISA */
+
+#ifdef CONFIG_ATARI_ROM_ISA
+/*
+ * kernel with both ROM port ISA and IDE compiled in, those have
+ * conflicting defs for in/out. Simply consider port < 1024
+ * ROM port ISA and everything else regular ISA for IDE. read,write defined
+ * below.
+ */
+#define inb(port) ((port) < 1024 ? isa_rom_inb(port) : in_8(port))
+#define inb_p(port) ((port) < 1024 ? isa_rom_inb_p(port) : in_8(port))
+#define inw(port) ((port) < 1024 ? isa_rom_inw(port) : in_le16(port))
+#define inw_p(port) ((port) < 1024 ? isa_rom_inw_p(port) : in_le16(port))
+#define inl isa_inl
+#define inl_p isa_inl_p
+
+#define outb(val, port) ((port) < 1024 ? isa_rom_outb((val), (port)) : out_8((port), (val)))
+#define outb_p(val, port) ((port) < 1024 ? isa_rom_outb_p((val), (port)) : out_8((port), (val)))
+#define outw(val, port) ((port) < 1024 ? isa_rom_outw((val), (port)) : out_le16((port), (val)))
+#define outw_p(val, port) ((port) < 1024 ? isa_rom_outw_p((val), (port)) : out_le16((port), (val)))
+#define outl isa_outl
+#define outl_p isa_outl_p
+
+#define insb(port, buf, nr) ((port) < 1024 ? isa_rom_insb((port), (buf), (nr)) : isa_insb((port), (buf), (nr)))
+#define insw(port, buf, nr) ((port) < 1024 ? isa_rom_insw((port), (buf), (nr)) : isa_insw((port), (buf), (nr)))
+#define insl isa_insl
+#define outsb(port, buf, nr) ((port) < 1024 ? isa_rom_outsb((port), (buf), (nr)) : isa_outsb((port), (buf), (nr)))
+#define outsw(port, buf, nr) ((port) < 1024 ? isa_rom_outsw((port), (buf), (nr)) : isa_outsw((port), (buf), (nr)))
+#define outsl isa_outsl
+
+#define readb(addr) in_8(addr)
+#define writeb(val, addr) out_8((addr), (val))
+#define readw(addr) in_le16(addr)
+#define writew(val, addr) out_le16((addr), (val))
+#endif /* CONFIG_ATARI_ROM_ISA */
+
+#if !defined(CONFIG_ISA) && !defined(CONFIG_ATARI_ROM_ISA)
+/*
+ * We need to define dummy functions for GENERIC_IOMAP support.
+ */
+#define inb(port) 0xff
+#define inb_p(port) 0xff
+#define outb(val,port) ((void)0)
+#define outb_p(val,port) ((void)0)
+#define inw(port) 0xffff
+#define inw_p(port) 0xffff
+#define outw(val,port) ((void)0)
+#define outw_p(val,port) ((void)0)
+#define inl(port) 0xffffffffUL
+#define inl_p(port) 0xffffffffUL
+#define outl(val,port) ((void)0)
+#define outl_p(val,port) ((void)0)
+
+#define insb(port,buf,nr) ((void)0)
+#define outsb(port,buf,nr) ((void)0)
+#define insw(port,buf,nr) ((void)0)
+#define outsw(port,buf,nr) ((void)0)
+#define insl(port,buf,nr) ((void)0)
+#define outsl(port,buf,nr) ((void)0)
+
+/*
+ * These should be valid on any ioremap()ed region
+ */
+#define readb(addr) in_8(addr)
+#define writeb(val,addr) out_8((addr),(val))
+#define readw(addr) in_le16(addr)
+#define writew(val,addr) out_le16((addr),(val))
+
+#endif /* !CONFIG_ISA && !CONFIG_ATARI_ROM_ISA */
+
+#define readl(addr) in_le32(addr)
+#define writel(val,addr) out_le32((addr),(val))
+
+#define readsb(port, buf, nr) raw_insb((port), (u8 *)(buf), (nr))
+#define readsw(port, buf, nr) raw_insw((port), (u16 *)(buf), (nr))
+#define readsl(port, buf, nr) raw_insl((port), (u32 *)(buf), (nr))
+#define writesb(port, buf, nr) raw_outsb((port), (u8 *)(buf), (nr))
+#define writesw(port, buf, nr) raw_outsw((port), (u16 *)(buf), (nr))
+#define writesl(port, buf, nr) raw_outsl((port), (u32 *)(buf), (nr))
+
+#define mmiowb()
+
+static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+static inline void __iomem *ioremap_writethrough(unsigned long physaddr,
+ unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
+}
+static inline void __iomem *ioremap_fullcache(unsigned long physaddr,
+ unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
+
+static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count)
+{
+ __builtin_memset((void __force *) addr, val, count);
+}
+static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count)
+{
+ __builtin_memcpy(dst, (void __force *) src, count);
+}
+static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count)
+{
+ __builtin_memcpy((void __force *) dst, src, count);
+}
+
+#ifndef CONFIG_SUN3
+#define IO_SPACE_LIMIT 0xffff
+#else
+#define IO_SPACE_LIMIT 0x0fffffff
+#endif
+
+#endif /* __KERNEL__ */
+
+#define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1
+
+/*
+ * 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
+
+static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+ return (void __iomem *) port;
+}
+
+static inline void ioport_unmap(void __iomem *p)
+{
+}
+
+#endif /* _IO_H */