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-rw-r--r--include/asm-generic/io.h271
1 files changed, 238 insertions, 33 deletions
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index fb62c621acf9..00483d769d86 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -174,96 +174,137 @@ static inline void writeq(u64 value, volatile void __iomem *addr)
#endif
#endif /* CONFIG_64BIT */
-#ifndef insb
-static inline void insb(unsigned long addr, void *buffer, int count)
+/*
+ * {read,write}s{b,w,l,q}() repeatedly access the same memory address in
+ * native endianness in 8-, 16-, 32- or 64-bit chunks (@count times).
+ */
+#ifndef readsb
+#define readsb readsb
+static inline void readsb(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
{
if (count) {
u8 *buf = buffer;
+
do {
- u8 x = __raw_readb(addr + PCI_IOBASE);
+ u8 x = __raw_readb(addr);
*buf++ = x;
} while (--count);
}
}
#endif
-#ifndef insw
-static inline void insw(unsigned long addr, void *buffer, int count)
+#ifndef readsw
+#define readsw readsw
+static inline void readsw(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
{
if (count) {
u16 *buf = buffer;
+
do {
- u16 x = __raw_readw(addr + PCI_IOBASE);
+ u16 x = __raw_readw(addr);
*buf++ = x;
} while (--count);
}
}
#endif
-#ifndef insl
-static inline void insl(unsigned long addr, void *buffer, int count)
+#ifndef readsl
+#define readsl readsl
+static inline void readsl(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
{
if (count) {
u32 *buf = buffer;
+
do {
- u32 x = __raw_readl(addr + PCI_IOBASE);
+ u32 x = __raw_readl(addr);
*buf++ = x;
} while (--count);
}
}
#endif
-#ifndef outsb
-static inline void outsb(unsigned long addr, const void *buffer, int count)
+#ifdef CONFIG_64BIT
+#ifndef readsq
+#define readsq readsq
+static inline void readsq(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
+{
+ if (count) {
+ u64 *buf = buffer;
+
+ do {
+ u64 x = __raw_readq(addr);
+ *buf++ = x;
+ } while (--count);
+ }
+}
+#endif
+#endif /* CONFIG_64BIT */
+
+#ifndef writesb
+#define writesb writesb
+static inline void writesb(volatile void __iomem *addr, const void *buffer,
+ unsigned int count)
{
if (count) {
const u8 *buf = buffer;
+
do {
- __raw_writeb(*buf++, addr + PCI_IOBASE);
+ __raw_writeb(*buf++, addr);
} while (--count);
}
}
#endif
-#ifndef outsw
-static inline void outsw(unsigned long addr, const void *buffer, int count)
+#ifndef writesw
+#define writesw writesw
+static inline void writesw(volatile void __iomem *addr, const void *buffer,
+ unsigned int count)
{
if (count) {
const u16 *buf = buffer;
+
do {
- __raw_writew(*buf++, addr + PCI_IOBASE);
+ __raw_writew(*buf++, addr);
} while (--count);
}
}
#endif
-#ifndef outsl
-static inline void outsl(unsigned long addr, const void *buffer, int count)
+#ifndef writesl
+#define writesl writesl
+static inline void writesl(volatile void __iomem *addr, const void *buffer,
+ unsigned int count)
{
if (count) {
const u32 *buf = buffer;
+
do {
- __raw_writel(*buf++, addr + PCI_IOBASE);
+ __raw_writel(*buf++, addr);
} while (--count);
}
}
#endif
-#ifndef CONFIG_GENERIC_IOMAP
-#define ioread8_rep(p, dst, count) \
- insb((unsigned long) (p), (dst), (count))
-#define ioread16_rep(p, dst, count) \
- insw((unsigned long) (p), (dst), (count))
-#define ioread32_rep(p, dst, count) \
- insl((unsigned long) (p), (dst), (count))
-
-#define iowrite8_rep(p, src, count) \
- outsb((unsigned long) (p), (src), (count))
-#define iowrite16_rep(p, src, count) \
- outsw((unsigned long) (p), (src), (count))
-#define iowrite32_rep(p, src, count) \
- outsl((unsigned long) (p), (src), (count))
-#endif /* CONFIG_GENERIC_IOMAP */
+#ifdef CONFIG_64BIT
+#ifndef writesq
+#define writesq writesq
+static inline void writesq(volatile void __iomem *addr, const void *buffer,
+ unsigned int count)
+{
+ if (count) {
+ const u64 *buf = buffer;
+
+ do {
+ __raw_writeq(*buf++, addr);
+ } while (--count);
+ }
+}
+#endif
+#endif /* CONFIG_64BIT */
#ifndef PCI_IOBASE
#define PCI_IOBASE ((void __iomem *)0)
@@ -375,6 +416,113 @@ static inline void outl_p(u32 value, unsigned long addr)
}
#endif
+/*
+ * {in,out}s{b,w,l}{,_p}() are variants of the above that repeatedly access a
+ * single I/O port multiple times.
+ */
+
+#ifndef insb
+#define insb insb
+static inline void insb(unsigned long addr, void *buffer, unsigned int count)
+{
+ readsb(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef insw
+#define insw insw
+static inline void insw(unsigned long addr, void *buffer, unsigned int count)
+{
+ readsw(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef insl
+#define insl insl
+static inline void insl(unsigned long addr, void *buffer, unsigned int count)
+{
+ readsl(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef outsb
+#define outsb outsb
+static inline void outsb(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ writesb(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef outsw
+#define outsw outsw
+static inline void outsw(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ writesw(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef outsl
+#define outsl outsl
+static inline void outsl(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ writesl(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef insb_p
+#define insb_p insb_p
+static inline void insb_p(unsigned long addr, void *buffer, unsigned int count)
+{
+ insb(addr, buffer, count);
+}
+#endif
+
+#ifndef insw_p
+#define insw_p insw_p
+static inline void insw_p(unsigned long addr, void *buffer, unsigned int count)
+{
+ insw(addr, buffer, count);
+}
+#endif
+
+#ifndef insl_p
+#define insl_p insl_p
+static inline void insl_p(unsigned long addr, void *buffer, unsigned int count)
+{
+ insl(addr, buffer, count);
+}
+#endif
+
+#ifndef outsb_p
+#define outsb_p outsb_p
+static inline void outsb_p(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ outsb(addr, buffer, count);
+}
+#endif
+
+#ifndef outsw_p
+#define outsw_p outsw_p
+static inline void outsw_p(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ outsw(addr, buffer, count);
+}
+#endif
+
+#ifndef outsl_p
+#define outsl_p outsl_p
+static inline void outsl_p(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ outsl(addr, buffer, count);
+}
+#endif
+
#ifndef CONFIG_GENERIC_IOMAP
#ifndef ioread8
#define ioread8 ioread8
@@ -455,6 +603,63 @@ static inline void iowrite32be(u32 value, volatile void __iomem *addr)
__raw_writel(__cpu_to_be32(value), addr);
}
#endif
+
+#ifndef ioread8_rep
+#define ioread8_rep ioread8_rep
+static inline void ioread8_rep(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
+{
+ readsb(addr, buffer, count);
+}
+#endif
+
+#ifndef ioread16_rep
+#define ioread16_rep ioread16_rep
+static inline void ioread16_rep(const volatile void __iomem *addr,
+ void *buffer, unsigned int count)
+{
+ readsw(addr, buffer, count);
+}
+#endif
+
+#ifndef ioread32_rep
+#define ioread32_rep ioread32_rep
+static inline void ioread32_rep(const volatile void __iomem *addr,
+ void *buffer, unsigned int count)
+{
+ readsl(addr, buffer, count);
+}
+#endif
+
+#ifndef iowrite8_rep
+#define iowrite8_rep iowrite8_rep
+static inline void iowrite8_rep(volatile void __iomem *addr,
+ const void *buffer,
+ unsigned int count)
+{
+ writesb(addr, buffer, count);
+}
+#endif
+
+#ifndef iowrite16_rep
+#define iowrite16_rep iowrite16_rep
+static inline void iowrite16_rep(volatile void __iomem *addr,
+ const void *buffer,
+ unsigned int count)
+{
+ writesw(addr, buffer, count);
+}
+#endif
+
+#ifndef iowrite32_rep
+#define iowrite32_rep iowrite32_rep
+static inline void iowrite32_rep(volatile void __iomem *addr,
+ const void *buffer,
+ unsigned int count)
+{
+ writesl(addr, buffer, count);
+}
+#endif
#endif /* CONFIG_GENERIC_IOMAP */
#ifdef __KERNEL__
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-03 01:01:26 +0000