X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-mips%2Fchecksum.h;h=b09f8971e95d7fd1ba8ebb1f7ae1a9b758eec826;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=e31681afb1af8dcd21dade0cd02f34f8a3f0b6bc;hpb=9213980e6a70d8473e0ffd4b39ab5b6caaba9ff5;p=linux-2.6.git diff --git a/include/asm-mips/checksum.h b/include/asm-mips/checksum.h index e31681afb..b09f8971e 100644 --- a/include/asm-mips/checksum.h +++ b/include/asm-mips/checksum.h @@ -34,17 +34,20 @@ unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum); * this is a new version of the above that records errors it finds in *errp, * but continues and zeros the rest of the buffer. */ -unsigned int csum_partial_copy_from_user(const char *src, char *dst, int len, - unsigned int sum, int *errp); +unsigned int csum_partial_copy_from_user(const unsigned char __user *src, + unsigned char *dst, int len, + unsigned int sum, int *errp); /* * Copy and checksum to user */ #define HAVE_CSUM_COPY_USER -static inline unsigned int csum_and_copy_to_user (const char *src, char *dst, +static inline unsigned int csum_and_copy_to_user (const unsigned char *src, + unsigned char __user *dst, int len, int sum, int *err_ptr) { + might_sleep(); sum = csum_partial(src, len, sum); if (copy_to_user(dst, src, len)) { @@ -59,8 +62,8 @@ static inline unsigned int csum_and_copy_to_user (const char *src, char *dst, * the same as csum_partial, but copies from user space (but on MIPS * we have just one address space, so this is identical to the above) */ -unsigned int csum_partial_copy_nocheck(const char *src, char *dst, int len, - unsigned int sum); +unsigned int csum_partial_copy_nocheck(const unsigned char *src, unsigned char *dst, + int len, unsigned int sum); /* * Fold a partial checksum without adding pseudo headers @@ -68,14 +71,15 @@ unsigned int csum_partial_copy_nocheck(const char *src, char *dst, int len, static inline unsigned short int csum_fold(unsigned int sum) { __asm__( - ".set\tnoat\t\t\t# csum_fold\n\t" - "sll\t$1,%0,16\n\t" - "addu\t%0,$1\n\t" - "sltu\t$1,%0,$1\n\t" - "srl\t%0,%0,16\n\t" - "addu\t%0,$1\n\t" - "xori\t%0,0xffff\n\t" - ".set\tat" + " .set push # csum_fold\n" + " .set noat \n" + " sll $1, %0, 16 \n" + " addu %0, $1 \n" + " sltu $1, %0, $1 \n" + " srl %0, %0, 16 \n" + " addu %0, $1 \n" + " xori %0, 0xffff \n" + " .set pop" : "=r" (sum) : "0" (sum)); @@ -125,29 +129,30 @@ static inline unsigned int csum_tcpudp_nofold(unsigned long saddr, unsigned int sum) { __asm__( - ".set\tnoat\t\t\t# csum_tcpudp_nofold\n\t" -#ifdef CONFIG_MIPS32 - "addu\t%0, %2\n\t" - "sltu\t$1, %0, %2\n\t" - "addu\t%0, $1\n\t" - - "addu\t%0, %3\n\t" - "sltu\t$1, %0, %3\n\t" - "addu\t%0, $1\n\t" - - "addu\t%0, %4\n\t" - "sltu\t$1, %0, %4\n\t" - "addu\t%0, $1\n\t" + " .set push # csum_tcpudp_nofold\n" + " .set noat \n" +#ifdef CONFIG_32BIT + " addu %0, %2 \n" + " sltu $1, %0, %2 \n" + " addu %0, $1 \n" + + " addu %0, %3 \n" + " sltu $1, %0, %3 \n" + " addu %0, $1 \n" + + " addu %0, %4 \n" + " sltu $1, %0, %4 \n" + " addu %0, $1 \n" #endif -#ifdef CONFIG_MIPS64 - "daddu\t%0, %2\n\t" - "daddu\t%0, %3\n\t" - "daddu\t%0, %4\n\t" - "dsll32\t$1, %0, 0\n\t" - "daddu\t%0, $1\n\t" - "dsrl32\t%0, %0, 0\n\t" +#ifdef CONFIG_64BIT + " daddu %0, %2 \n" + " daddu %0, %3 \n" + " daddu %0, %4 \n" + " dsll32 $1, %0, 0 \n" + " daddu %0, $1 \n" + " dsra32 %0, %0, 0 \n" #endif - ".set\tat" + " .set pop" : "=r" (sum) : "0" (daddr), "r"(saddr), #ifdef __MIPSEL__ @@ -190,57 +195,57 @@ static __inline__ unsigned short int csum_ipv6_magic(struct in6_addr *saddr, unsigned int sum) { __asm__( - ".set\tpush\t\t\t# csum_ipv6_magic\n\t" - ".set\tnoreorder\n\t" - ".set\tnoat\n\t" - "addu\t%0, %5\t\t\t# proto (long in network byte order)\n\t" - "sltu\t$1, %0, %5\n\t" - "addu\t%0, $1\n\t" - - "addu\t%0, %6\t\t\t# csum\n\t" - "sltu\t$1, %0, %6\n\t" - "lw\t%1, 0(%2)\t\t\t# four words source address\n\t" - "addu\t%0, $1\n\t" - "addu\t%0, %1\n\t" - "sltu\t$1, %0, %1\n\t" - - "lw\t%1, 4(%2)\n\t" - "addu\t%0, $1\n\t" - "addu\t%0, %1\n\t" - "sltu\t$1, %0, %1\n\t" - - "lw\t%1, 8(%2)\n\t" - "addu\t%0, $1\n\t" - "addu\t%0, %1\n\t" - "sltu\t$1, %0, %1\n\t" - - "lw\t%1, 12(%2)\n\t" - "addu\t%0, $1\n\t" - "addu\t%0, %1\n\t" - "sltu\t$1, %0, %1\n\t" - - "lw\t%1, 0(%3)\n\t" - "addu\t%0, $1\n\t" - "addu\t%0, %1\n\t" - "sltu\t$1, %0, %1\n\t" - - "lw\t%1, 4(%3)\n\t" - "addu\t%0, $1\n\t" - "addu\t%0, %1\n\t" - "sltu\t$1, %0, %1\n\t" - - "lw\t%1, 8(%3)\n\t" - "addu\t%0, $1\n\t" - "addu\t%0, %1\n\t" - "sltu\t$1, %0, %1\n\t" - - "lw\t%1, 12(%3)\n\t" - "addu\t%0, $1\n\t" - "addu\t%0, %1\n\t" - "sltu\t$1, %0, %1\n\t" - - "addu\t%0, $1\t\t\t# Add final carry\n\t" - ".set\tpop" + " .set push # csum_ipv6_magic\n" + " .set noreorder \n" + " .set noat \n" + " addu %0, %5 # proto (long in network byte order)\n" + " sltu $1, %0, %5 \n" + " addu %0, $1 \n" + + " addu %0, %6 # csum\n" + " sltu $1, %0, %6 \n" + " lw %1, 0(%2) # four words source address\n" + " addu %0, $1 \n" + " addu %0, %1 \n" + " sltu $1, %0, %1 \n" + + " lw %1, 4(%2) \n" + " addu %0, $1 \n" + " addu %0, %1 \n" + " sltu $1, %0, %1 \n" + + " lw %1, 8(%2) \n" + " addu %0, $1 \n" + " addu %0, %1 \n" + " sltu $1, %0, %1 \n" + + " lw %1, 12(%2) \n" + " addu %0, $1 \n" + " addu %0, %1 \n" + " sltu $1, %0, %1 \n" + + " lw %1, 0(%3) \n" + " addu %0, $1 \n" + " addu %0, %1 \n" + " sltu $1, %0, %1 \n" + + " lw %1, 4(%3) \n" + " addu %0, $1 \n" + " addu %0, %1 \n" + " sltu $1, %0, %1 \n" + + " lw %1, 8(%3) \n" + " addu %0, $1 \n" + " addu %0, %1 \n" + " sltu $1, %0, %1 \n" + + " lw %1, 12(%3) \n" + " addu %0, $1 \n" + " addu %0, %1 \n" + " sltu $1, %0, %1 \n" + + " addu %0, $1 # Add final carry\n" + " .set pop" : "=r" (sum), "=r" (proto) : "r" (saddr), "r" (daddr), "0" (htonl(len)), "1" (htonl(proto)), "r" (sum));