[PATCH 2/8] m68k iomem (based on Geert's tree + memcpy_... stuff)

From: Al Viro
Date: Thu Jul 19 2007 - 23:33:23 EST

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Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
arch/m68k/Kconfig | 4 ++
include/asm-m68k/io.h | 75 +++++++++++++++++++++++++++++++++++++-------
include/asm-m68k/raw_io.h | 8 +++-
3 files changed, 73 insertions(+), 14 deletions(-)

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index a86e2e9..684de4c 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -37,6 +37,10 @@ config TIME_LOW_RES
bool
default y

+config GENERIC_IOMAP
+ bool
+ default y
+
config ARCH_MAY_HAVE_PC_FDC
bool
depends on Q40 || (BROKEN && SUN3X)
diff --git a/include/asm-m68k/io.h b/include/asm-m68k/io.h
index 5e0fcf4..47bb9cf 100644
--- a/include/asm-m68k/io.h
+++ b/include/asm-m68k/io.h
@@ -27,6 +27,7 @@
#include <asm/raw_io.h>
#include <asm/virtconvert.h>

+#include <asm-generic/iomap.h>

#ifdef CONFIG_ATARI
#include <asm/atarihw.h>
@@ -152,6 +153,16 @@ static inline u16 __iomem *isa_itw(unsigned long addr)
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 AG_ISA: 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)
@@ -188,8 +199,10 @@ static inline u16 __iomem *isa_mtw(unsigned long addr)

#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) \
@@ -234,6 +247,15 @@ static inline void isa_delay(void)
#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))
+
#endif /* CONFIG_ISA */

@@ -246,14 +268,16 @@ static inline void isa_delay(void)
#define inw_p isa_inw_p
#define outw isa_outw
#define outw_p isa_outw_p
-#define inl isa_inw
-#define inl_p isa_inw_p
-#define outl isa_outw
-#define outl_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
@@ -262,8 +286,6 @@ static inline void isa_delay(void)

#if defined(CONFIG_PCI)

-#define inl(port) in_le32(port)
-#define outl(val,port) out_le32((port),(val))
#define readl(addr) in_le32(addr)
#define writel(val,addr) out_le32((addr),(val))

@@ -282,6 +304,8 @@ static inline void isa_delay(void)
#define outb(val,port) out_8((port),(val))
#define inw(port) in_le16(port)
#define outw(val,port) out_le16((port),(val))
+#define inl(port) in_le32(port)
+#define outl(val,port) out_le32((port),(val))

#else
/*
@@ -306,20 +330,35 @@ static inline void isa_delay(void)
#endif
#endif /* CONFIG_PCI */

-#if !defined(CONFIG_ISA) && !defined(CONFIG_PCI) && defined(CONFIG_HP300)
+#if !defined(CONFIG_ISA) && !defined(CONFIG_PCI)
/*
- * We need to define dummy functions otherwise drivers/serial/8250.c doesn't link
+ * We need to define dummy functions for GENERIC_IOMAP support.
*/
-#define inb(port) 0xff
-#define inb_p(port) 0xff
-#define outb(val,port) do { } while (0)
-#define outb_p(val,port) do { } while (0)
+#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 outw(val,port) ((void)0)
+#define inl(port) 0xffffffffUL
+#define outl(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
+#if !defined(CONFIG_PCI)
#define readl(addr) in_le32(addr)
#define writel(val,addr) out_le32((addr),(val))
#endif
@@ -351,6 +390,18 @@ extern void dma_cache_wback_inv(unsigned long start, unsigned long size);
extern void dma_cache_wback(unsigned long start, unsigned long size);
extern void dma_cache_inv(unsigned long start, unsigned long size);

+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
diff --git a/include/asm-m68k/raw_io.h b/include/asm-m68k/raw_io.h
index 811ccd2..91c623f 100644
--- a/include/asm-m68k/raw_io.h
+++ b/include/asm-m68k/raw_io.h
@@ -49,10 +49,16 @@ extern void __iounmap(void *addr, unsigned long size);
#define raw_inb in_8
#define raw_inw in_be16
#define raw_inl in_be32
+#define __raw_readb in_8
+#define __raw_readw in_be16
+#define __raw_readl in_be32

#define raw_outb(val,port) out_8((port),(val))
#define raw_outw(val,port) out_be16((port),(val))
#define raw_outl(val,port) out_be32((port),(val))
+#define __raw_writeb(val,addr) out_8((addr),(val))
+#define __raw_writew(val,addr) out_be16((addr),(val))
+#define __raw_writel(val,addr) out_be32((addr),(val))

static inline void raw_insb(volatile u8 __iomem *port, u8 *buf, unsigned int len)
{
@@ -336,8 +342,6 @@ static inline void raw_outsw_swapw(volatile u16 __iomem *port, const u16 *buf,
: "d0", "a0", "a1", "d6");
}

-#define __raw_writel raw_outl
-
#endif /* __KERNEL__ */

#endif /* _RAW_IO_H */
--
1.5.3.GIT

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Next message: Reiner Sailer: "Re: [PATCH] Memory leak in tpm_ascii_bios_measurements_open() fix."
Previous message: Al Viro: "[PATCH 1/8] m68k: teach modpost about .m68_fixup"
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