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authorSam Ravnborg <sam@ravnborg.org>2008-07-17 21:55:51 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-17 21:55:51 -0700
commitf5e706ad886b6a5eb59637830110b09ccebf01c5 (patch)
treeea043a0a28e16a2ac6395c35d737f52698a165b7 /include/asm-sparc64/checksum.h
parent5e3609f60c09f0f15f71f80c6d7933b2c7be71a6 (diff)
sparc: join the remaining header files
With this commit all sparc64 header files are moved to asm-sparc. The remaining files (71 files) were too different to be trivially merged so divide them up in a _32.h and a _64.h file which are both included from the file with no bit size. The following script were used: cd include FILES=`wc -l asm-sparc64/*h | grep -v '^ 1' | cut -b 20-` for FILE in ${FILES}; do echo $FILE: BASE=`echo $FILE | cut -d '.' -f 1` FN32=${BASE}_32.h FN64=${BASE}_64.h GUARD=___ASM_SPARC_`echo $BASE | tr '-' '_' | tr [:lower:] [:upper:]`_H git mv asm-sparc/$FILE asm-sparc/$FN32 git mv asm-sparc64/$FILE asm-sparc/$FN64 echo git mv done printf "#ifndef %s\n" $GUARD > asm-sparc/$FILE printf "#define %s\n" $GUARD >> asm-sparc/$FILE printf "#if defined(__sparc__) && defined(__arch64__)\n" >> asm-sparc/$FILE printf "#include <asm-sparc/%s>\n" $FN64 >> asm-sparc/$FILE printf "#else\n" >> asm-sparc/$FILE printf "#include <asm-sparc/%s>\n" $FN32 >> asm-sparc/$FILE printf "#endif\n" >> asm-sparc/$FILE printf "#endif\n" >> asm-sparc/$FILE git add asm-sparc/$FILE echo new file done printf "#include <asm-sparc/%s>\n" $FILE > asm-sparc64/$FILE git add asm-sparc64/$FILE echo sparc64 file done done The guard contains three '_' to avoid conflict with existing guards. In additing the two Kbuild files are emptied to avoid breaking headers_* targets. We will reintroduce the exported header files when the necessary kbuild changes are merged. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/checksum.h')
-rw-r--r--include/asm-sparc64/checksum.h168
1 files changed, 1 insertions, 167 deletions
diff --git a/include/asm-sparc64/checksum.h b/include/asm-sparc64/checksum.h
index b290564c8ce..c3966c5e29d 100644
--- a/include/asm-sparc64/checksum.h
+++ b/include/asm-sparc64/checksum.h
@@ -1,167 +1 @@
-#ifndef __SPARC64_CHECKSUM_H
-#define __SPARC64_CHECKSUM_H
-
-/* checksum.h: IP/UDP/TCP checksum routines on the V9.
- *
- * Copyright(C) 1995 Linus Torvalds
- * Copyright(C) 1995 Miguel de Icaza
- * Copyright(C) 1996 David S. Miller
- * Copyright(C) 1996 Eddie C. Dost
- * Copyright(C) 1997 Jakub Jelinek
- *
- * derived from:
- * Alpha checksum c-code
- * ix86 inline assembly
- * RFC1071 Computing the Internet Checksum
- */
-
-#include <linux/in6.h>
-#include <asm/uaccess.h>
-
-/* computes the checksum of a memory block at buff, length len,
- * and adds in "sum" (32-bit)
- *
- * returns a 32-bit number suitable for feeding into itself
- * or csum_tcpudp_magic
- *
- * this function must be called with even lengths, except
- * for the last fragment, which may be odd
- *
- * it's best to have buff aligned on a 32-bit boundary
- */
-extern __wsum csum_partial(const void * buff, int len, __wsum sum);
-
-/* the same as csum_partial, but copies from user space while it
- * checksums
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- */
-extern __wsum csum_partial_copy_nocheck(const void *src, void *dst,
- int len, __wsum sum);
-
-extern long __csum_partial_copy_from_user(const void __user *src,
- void *dst, int len,
- __wsum sum);
-
-static inline __wsum
-csum_partial_copy_from_user(const void __user *src,
- void *dst, int len,
- __wsum sum, int *err)
-{
- long ret = __csum_partial_copy_from_user(src, dst, len, sum);
- if (ret < 0)
- *err = -EFAULT;
- return (__force __wsum) ret;
-}
-
-/*
- * Copy and checksum to user
- */
-#define HAVE_CSUM_COPY_USER
-extern long __csum_partial_copy_to_user(const void *src,
- void __user *dst, int len,
- __wsum sum);
-
-static inline __wsum
-csum_and_copy_to_user(const void *src,
- void __user *dst, int len,
- __wsum sum, int *err)
-{
- long ret = __csum_partial_copy_to_user(src, dst, len, sum);
- if (ret < 0)
- *err = -EFAULT;
- return (__force __wsum) ret;
-}
-
-/* ihl is always 5 or greater, almost always is 5, and iph is word aligned
- * the majority of the time.
- */
-extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
-
-/* Fold a partial checksum without adding pseudo headers. */
-static inline __sum16 csum_fold(__wsum sum)
-{
- unsigned int tmp;
-
- __asm__ __volatile__(
-" addcc %0, %1, %1\n"
-" srl %1, 16, %1\n"
-" addc %1, %%g0, %1\n"
-" xnor %%g0, %1, %0\n"
- : "=&r" (sum), "=r" (tmp)
- : "0" (sum), "1" ((__force u32)sum<<16)
- : "cc");
- return (__force __sum16)sum;
-}
-
-static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
- unsigned int len,
- unsigned short proto,
- __wsum sum)
-{
- __asm__ __volatile__(
-" addcc %1, %0, %0\n"
-" addccc %2, %0, %0\n"
-" addccc %3, %0, %0\n"
-" addc %0, %%g0, %0\n"
- : "=r" (sum), "=r" (saddr)
- : "r" (daddr), "r" (proto + len), "0" (sum), "1" (saddr)
- : "cc");
- return sum;
-}
-
-/*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
-static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
- unsigned short len,
- unsigned short proto,
- __wsum sum)
-{
- return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
-}
-
-#define _HAVE_ARCH_IPV6_CSUM
-
-static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
- const struct in6_addr *daddr,
- __u32 len, unsigned short proto,
- __wsum sum)
-{
- __asm__ __volatile__ (
-" addcc %3, %4, %%g7\n"
-" addccc %5, %%g7, %%g7\n"
-" lduw [%2 + 0x0c], %%g2\n"
-" lduw [%2 + 0x08], %%g3\n"
-" addccc %%g2, %%g7, %%g7\n"
-" lduw [%2 + 0x04], %%g2\n"
-" addccc %%g3, %%g7, %%g7\n"
-" lduw [%2 + 0x00], %%g3\n"
-" addccc %%g2, %%g7, %%g7\n"
-" lduw [%1 + 0x0c], %%g2\n"
-" addccc %%g3, %%g7, %%g7\n"
-" lduw [%1 + 0x08], %%g3\n"
-" addccc %%g2, %%g7, %%g7\n"
-" lduw [%1 + 0x04], %%g2\n"
-" addccc %%g3, %%g7, %%g7\n"
-" lduw [%1 + 0x00], %%g3\n"
-" addccc %%g2, %%g7, %%g7\n"
-" addccc %%g3, %%g7, %0\n"
-" addc 0, %0, %0\n"
- : "=&r" (sum)
- : "r" (saddr), "r" (daddr), "r"(htonl(len)),
- "r"(htonl(proto)), "r"(sum)
- : "g2", "g3", "g7", "cc");
-
- return csum_fold(sum);
-}
-
-/* this routine is used for miscellaneous IP-like checksums, mainly in icmp.c */
-static inline __sum16 ip_compute_csum(const void *buff, int len)
-{
- return csum_fold(csum_partial(buff, len, 0));
-}
-
-#endif /* !(__SPARC64_CHECKSUM_H) */
+#include <asm-sparc/checksum.h>