Commit 34ba8a5c authored by Linus Torvalds's avatar Linus Torvalds Committed by Paul Mackerras

[PATCH] Arch provides generic iomap missing accessors

Allow architectures to provide their own implementation of the big endian MMIO
accessors and "repeat" MMIO accessors for use by the generic iomap.
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
More-or-less-tested-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 79acbb3f
...@@ -50,6 +50,16 @@ ...@@ -50,6 +50,16 @@
} \ } \
} while (0) } while (0)
#ifndef pio_read16be
#define pio_read16be(port) swab16(inw(port))
#define pio_read32be(port) swab32(inl(port))
#endif
#ifndef mmio_read16be
#define mmio_read16be(addr) be16_to_cpu(__raw_readw(addr))
#define mmio_read32be(addr) be32_to_cpu(__raw_readl(addr))
#endif
unsigned int fastcall ioread8(void __iomem *addr) unsigned int fastcall ioread8(void __iomem *addr)
{ {
IO_COND(addr, return inb(port), return readb(addr)); IO_COND(addr, return inb(port), return readb(addr));
...@@ -60,7 +70,7 @@ unsigned int fastcall ioread16(void __iomem *addr) ...@@ -60,7 +70,7 @@ unsigned int fastcall ioread16(void __iomem *addr)
} }
unsigned int fastcall ioread16be(void __iomem *addr) unsigned int fastcall ioread16be(void __iomem *addr)
{ {
IO_COND(addr, return inw(port), return be16_to_cpu(__raw_readw(addr))); IO_COND(addr, return pio_read16be(port), return mmio_read16be(addr));
} }
unsigned int fastcall ioread32(void __iomem *addr) unsigned int fastcall ioread32(void __iomem *addr)
{ {
...@@ -68,7 +78,7 @@ unsigned int fastcall ioread32(void __iomem *addr) ...@@ -68,7 +78,7 @@ unsigned int fastcall ioread32(void __iomem *addr)
} }
unsigned int fastcall ioread32be(void __iomem *addr) unsigned int fastcall ioread32be(void __iomem *addr)
{ {
IO_COND(addr, return inl(port), return be32_to_cpu(__raw_readl(addr))); IO_COND(addr, return pio_read32be(port), return mmio_read32be(addr));
} }
EXPORT_SYMBOL(ioread8); EXPORT_SYMBOL(ioread8);
EXPORT_SYMBOL(ioread16); EXPORT_SYMBOL(ioread16);
...@@ -76,6 +86,16 @@ EXPORT_SYMBOL(ioread16be); ...@@ -76,6 +86,16 @@ EXPORT_SYMBOL(ioread16be);
EXPORT_SYMBOL(ioread32); EXPORT_SYMBOL(ioread32);
EXPORT_SYMBOL(ioread32be); EXPORT_SYMBOL(ioread32be);
#ifndef pio_write16be
#define pio_write16be(val,port) outw(swab16(val),port)
#define pio_write32be(val,port) outl(swab32(val),port)
#endif
#ifndef mmio_write16be
#define mmio_write16be(val,port) __raw_writew(be16_to_cpu(val),port)
#define mmio_write32be(val,port) __raw_writel(be32_to_cpu(val),port)
#endif
void fastcall iowrite8(u8 val, void __iomem *addr) void fastcall iowrite8(u8 val, void __iomem *addr)
{ {
IO_COND(addr, outb(val,port), writeb(val, addr)); IO_COND(addr, outb(val,port), writeb(val, addr));
...@@ -86,7 +106,7 @@ void fastcall iowrite16(u16 val, void __iomem *addr) ...@@ -86,7 +106,7 @@ void fastcall iowrite16(u16 val, void __iomem *addr)
} }
void fastcall iowrite16be(u16 val, void __iomem *addr) void fastcall iowrite16be(u16 val, void __iomem *addr)
{ {
IO_COND(addr, outw(val,port), __raw_writew(cpu_to_be16(val), addr)); IO_COND(addr, pio_write16be(val,port), mmio_write16be(val, addr));
} }
void fastcall iowrite32(u32 val, void __iomem *addr) void fastcall iowrite32(u32 val, void __iomem *addr)
{ {
...@@ -94,7 +114,7 @@ void fastcall iowrite32(u32 val, void __iomem *addr) ...@@ -94,7 +114,7 @@ void fastcall iowrite32(u32 val, void __iomem *addr)
} }
void fastcall iowrite32be(u32 val, void __iomem *addr) void fastcall iowrite32be(u32 val, void __iomem *addr)
{ {
IO_COND(addr, outl(val,port), __raw_writel(cpu_to_be32(val), addr)); IO_COND(addr, pio_write32be(val,port), mmio_write32be(val, addr));
} }
EXPORT_SYMBOL(iowrite8); EXPORT_SYMBOL(iowrite8);
EXPORT_SYMBOL(iowrite16); EXPORT_SYMBOL(iowrite16);
...@@ -108,6 +128,7 @@ EXPORT_SYMBOL(iowrite32be); ...@@ -108,6 +128,7 @@ EXPORT_SYMBOL(iowrite32be);
* convert to CPU byte order. We write in "IO byte * convert to CPU byte order. We write in "IO byte
* order" (we also don't have IO barriers). * order" (we also don't have IO barriers).
*/ */
#ifndef mmio_insb
static inline void mmio_insb(void __iomem *addr, u8 *dst, int count) static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
{ {
while (--count >= 0) { while (--count >= 0) {
...@@ -132,7 +153,9 @@ static inline void mmio_insl(void __iomem *addr, u32 *dst, int count) ...@@ -132,7 +153,9 @@ static inline void mmio_insl(void __iomem *addr, u32 *dst, int count)
dst++; dst++;
} }
} }
#endif
#ifndef mmio_outsb
static inline void mmio_outsb(void __iomem *addr, const u8 *src, int count) static inline void mmio_outsb(void __iomem *addr, const u8 *src, int count)
{ {
while (--count >= 0) { while (--count >= 0) {
...@@ -154,6 +177,7 @@ static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count) ...@@ -154,6 +177,7 @@ static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count)
src++; src++;
} }
} }
#endif
void fastcall ioread8_rep(void __iomem *addr, void *dst, unsigned long count) void fastcall ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
{ {
......
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