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Commit e50190a8 authored by Matthew Wilcox's avatar Matthew Wilcox Committed by Linus Torvalds
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[PATCH] Consolidate check_signature 

There's nothing arch-specific about check_signature(), so move it to
<linux/io.h>.  Use a cross between the Alpha and i386 implementations as
the generic one.
Signed-off-by: default avatarMatthew Wilcox <willy@parisc-linux.org>
Acked-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 53d5ed62
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Inline Side-by-side
Showing with 27 additions and 252 deletions
include/asm-alpha/io.h
View file @ e50190a8
......@@ -533,19 +533,6 @@ extern void outsl (unsigned long port, const void *src, unsigned long count);
#define eth_io_copy_and_sum(skb,src,len,unused) \
memcpy_fromio((skb)->data,src,len)
static inline int
check_signature(const volatile void __iomem *io_addr,
const unsigned char *signature, int length)
{
do {
if (readb(io_addr) != *signature)
return 0;
io_addr++;
signature++;
} while (--length);
return 1;
}
/*
* The Alpha Jensen hardware for some rather strange reason puts
* the RTC clock at 0x170 instead of 0x70. Probably due to some
......
include/asm-arm/io.h
View file @ e50190a8
......@@ -193,23 +193,6 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
#define eth_io_copy_and_sum(s,c,l,b) \
eth_copy_and_sum((s),__mem_pci(c),(l),(b))
static inline int
check_signature(void __iomem *io_addr, const unsigned char *signature,
int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
#elif !defined(readb)
#define readb(c) (__readwrite_bug("readb"),0)
......
include/asm-frv/io.h
View file @ e50190a8
......@@ -385,27 +385,6 @@ static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
*/
#define xlate_dev_kmem_ptr(p) p
/*
* Check BIOS signature
*/
static inline int check_signature(volatile void __iomem *io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
#endif /* __KERNEL__ */
#endif /* _ASM_IO_H */
include/asm-i386/io.h
View file @ e50190a8
......@@ -224,33 +224,6 @@ static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int
#define eth_io_copy_and_sum(a,b,c,d) eth_copy_and_sum((a),(void __force *)(b),(c),(d))
/**
* check_signature - find BIOS signatures
* @io_addr: mmio address to check
* @signature: signature block
* @length: length of signature
*
* Perform a signature comparison with the mmio address io_addr. This
* address should have been obtained by ioremap.
* Returns 1 on a match.
*/
static inline int check_signature(volatile void __iomem * io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
/*
* Cache management
*
......
include/asm-m32r/io.h
View file @ e50190a8
......@@ -166,38 +166,6 @@ static inline void _writel(unsigned long l, unsigned long addr)
#define flush_write_buffers() do { } while (0) /* M32R_FIXME */
/**
* check_signature - find BIOS signatures
* @io_addr: mmio address to check
* @signature: signature block
* @length: length of signature
*
* Perform a signature comparison with the ISA mmio address io_addr.
* Returns 1 on a match.
*
* This function is deprecated. New drivers should use ioremap and
* check_signature.
*/
static inline int check_signature(void __iomem *io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
#if 0
printk("check_signature\n");
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
#endif
return retval;
}
static inline void
memset_io(volatile void __iomem *addr, unsigned char val, int count)
{
......
include/asm-mips/io.h
View file @ e50190a8
......@@ -561,32 +561,6 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
*/
#define eth_io_copy_and_sum(skb,src,len,unused) memcpy_fromio((skb)->data,(src),(len))
/*
* check_signature - find BIOS signatures
* @io_addr: mmio address to check
* @signature: signature block
* @length: length of signature
*
* Perform a signature comparison with the mmio address io_addr. This
* address should have been obtained by ioremap.
* Returns 1 on a match.
*/
static inline int check_signature(char __iomem *io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
/*
* The caches on some architectures aren't dma-coherent and have need to
* handle this in software. There are three types of operations that
......
include/asm-powerpc/io.h
View file @ e50190a8
......@@ -404,32 +404,6 @@ static inline void __out_be64(volatile unsigned long __iomem *addr, unsigned lon
#include <asm/eeh.h>
/**
* check_signature - find BIOS signatures
* @io_addr: mmio address to check
* @signature: signature block
* @length: length of signature
*
* Perform a signature comparison with the mmio address io_addr. This
* address should have been obtained by ioremap.
* Returns 1 on a match.
*/
static inline int check_signature(const volatile void __iomem * io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
/* Nothing to do */
#define dma_cache_inv(_start,_size) do { } while (0)
......
include/asm-ppc/io.h
View file @ e50190a8
......@@ -439,22 +439,6 @@ extern inline void * phys_to_virt(unsigned long address)
#define iobarrier_r() eieio()
#define iobarrier_w() eieio()
static inline int check_signature(volatile void __iomem * io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
/*
* Here comes the ppc implementation of the IOMAP
* interfaces.
......
include/asm-sh/io.h
View file @ e50190a8
......@@ -304,22 +304,6 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
#define iounmap(addr) \
__iounmap((addr))
static inline int check_signature(char __iomem *io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
/*
* The caches on some architectures aren't dma-coherent and have need to
* handle this in software. There are three types of operations that
......
include/asm-sh64/io.h
View file @ e50190a8
......@@ -178,22 +178,6 @@ extern void iounmap(void *addr);
unsigned long onchip_remap(unsigned long addr, unsigned long size, const char* name);
extern void onchip_unmap(unsigned long vaddr);
static __inline__ int check_signature(volatile void __iomem *io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
/*
* The caches on some architectures aren't dma-coherent and have need to
* handle this in software. There are three types of operations that
......
include/asm-sparc64/io.h
View file @ e50190a8
......@@ -440,21 +440,6 @@ _memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n)
#define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz)
static inline int check_signature(void __iomem *io_addr,
const unsigned char *signature,
int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature++)
goto out;
io_addr++;
} while (--length);
retval = 1;
out:
return retval;
}
#define mmiowb()
#ifdef __KERNEL__
......
include/asm-x86_64/io.h
View file @ e50190a8
......@@ -254,33 +254,6 @@ void memset_io(volatile void __iomem *a, int b, size_t c);
#define eth_io_copy_and_sum(a,b,c,d) eth_copy_and_sum((a),(void *)(b),(c),(d))
/**
* check_signature - find BIOS signatures
* @io_addr: mmio address to check
* @signature: signature block
* @length: length of signature
*
* Perform a signature comparison with the mmio address io_addr. This
* address should have been obtained by ioremap.
* Returns 1 on a match.
*/
static inline int check_signature(void __iomem *io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
/* Nothing to do */
#define dma_cache_inv(_start,_size) do { } while (0)
......
include/linux/io.h
View file @ e50190a8
......@@ -28,4 +28,31 @@ void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
int ioremap_page_range(unsigned long addr, unsigned long end,
unsigned long phys_addr, pgprot_t prot);
/**
* check_signature - find BIOS signatures
* @io_addr: mmio address to check
* @signature: signature block
* @length: length of signature
*
* Perform a signature comparison with the mmio address io_addr. This
* address should have been obtained by ioremap.
* Returns 1 on a match.
*/
static inline int check_signature(const volatile void __iomem *io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
#endif /* _LINUX_IO_H */
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