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diff -Nur linux-2.6.29.4.orig/arch/mips/include/asm/compiler.h linux-2.6.29.4/arch/mips/include/asm/compiler.h
--- linux-2.6.29.4.orig/arch/mips/include/asm/compiler.h 2009-05-19 01:52:34.000000000 +0200
+++ linux-2.6.29.4/arch/mips/include/asm/compiler.h 2009-05-24 19:32:14.000000000 +0200
@@ -16,4 +16,11 @@
#define GCC_REG_ACCUM "accum"
#endif
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
+#define GCC_NO_H_CONSTRAINT
+#ifdef CONFIG_64BIT
+typedef unsigned int uint128_t __attribute__((mode(TI)));
+#endif
+#endif
+
#endif /* _ASM_COMPILER_H */
diff -Nur linux-2.6.29.4.orig/arch/mips/include/asm/delay.h linux-2.6.29.4/arch/mips/include/asm/delay.h
--- linux-2.6.29.4.orig/arch/mips/include/asm/delay.h 2009-05-19 01:52:34.000000000 +0200
+++ linux-2.6.29.4/arch/mips/include/asm/delay.h 2009-05-24 19:32:14.000000000 +0200
@@ -62,8 +62,9 @@
static inline void __udelay(unsigned long usecs, unsigned long lpj)
{
+#ifndef GCC_NO_H_CONSTRAINT
unsigned long hi, lo;
-
+#endif
/*
* The rates of 128 is rounded wrongly by the catchall case
* for 64-bit. Excessive precission? Probably ...
@@ -77,6 +78,17 @@
0x80000000ULL) >> 32);
#endif
+#ifdef GCC_NO_H_CONSTRAINT
+#ifdef CONFIG_64BIT
+ usecs = ((uint128_t)usecs * lpj) >> 64;
+#else
+#define SZHALF (sizeof(long)*4)
+#define LOWERHALF ((0x1ul<<SZHALF) - 1)
+ usecs = (usecs >> SZHALF) * (lpj >> SZHALF) + ( ((usecs & LOWERHALF) * (lpj >> SZHALF) + (usecs >> SZHALF) * (lpj & LOWERHALF)) >> SZHALF );
+#undef SZHALF
+#undef LOWERHALF
+#endif
+#else
if (sizeof(long) == 4)
__asm__("multu\t%2, %3"
: "=h" (usecs), "=l" (lo)
@@ -92,7 +104,7 @@
: "=r" (usecs), "=h" (hi), "=l" (lo)
: "r" (usecs), "r" (lpj)
: GCC_REG_ACCUM);
-
+#endif
__delay(usecs);
}
diff -Nur linux-2.6.29.4.orig/arch/mips/include/asm/div64.h linux-2.6.29.4/arch/mips/include/asm/div64.h
--- linux-2.6.29.4.orig/arch/mips/include/asm/div64.h 2009-05-19 01:52:34.000000000 +0200
+++ linux-2.6.29.4/arch/mips/include/asm/div64.h 2009-05-22 13:38:14.000000000 +0200
@@ -6,105 +6,63 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
-#ifndef _ASM_DIV64_H
-#define _ASM_DIV64_H
+#ifndef __ASM_DIV64_H
+#define __ASM_DIV64_H
-#include <linux/types.h>
+#include <asm-generic/div64.h>
-#if (_MIPS_SZLONG == 32)
+#if BITS_PER_LONG == 64
-#include <asm/compiler.h>
+#include <linux/types.h>
/*
* No traps on overflows for any of these...
*/
-#define do_div64_32(res, high, low, base) ({ \
- unsigned long __quot32, __mod32; \
- unsigned long __cf, __tmp, __tmp2, __i; \
- \
- __asm__(".set push\n\t" \
- ".set noat\n\t" \
- ".set noreorder\n\t" \
- "move %2, $0\n\t" \
- "move %3, $0\n\t" \
- "b 1f\n\t" \
- " li %4, 0x21\n" \
- "0:\n\t" \
- "sll $1, %0, 0x1\n\t" \
- "srl %3, %0, 0x1f\n\t" \
- "or %0, $1, %5\n\t" \
- "sll %1, %1, 0x1\n\t" \
- "sll %2, %2, 0x1\n" \
- "1:\n\t" \
- "bnez %3, 2f\n\t" \
- " sltu %5, %0, %z6\n\t" \
- "bnez %5, 3f\n" \
- "2:\n\t" \
- " addiu %4, %4, -1\n\t" \
- "subu %0, %0, %z6\n\t" \
- "addiu %2, %2, 1\n" \
- "3:\n\t" \
- "bnez %4, 0b\n\t" \
- " srl %5, %1, 0x1f\n\t" \
- ".set pop" \
- : "=&r" (__mod32), "=&r" (__tmp), \
- "=&r" (__quot32), "=&r" (__cf), \
- "=&r" (__i), "=&r" (__tmp2) \
- : "Jr" (base), "0" (high), "1" (low)); \
- \
- (res) = __quot32; \
- __mod32; })
-
-#define do_div(n, base) ({ \
- unsigned long long __quot; \
- unsigned long __mod; \
- unsigned long long __div; \
- unsigned long __upper, __low, __high, __base; \
- \
- __div = (n); \
- __base = (base); \
- \
- __high = __div >> 32; \
- __low = __div; \
- __upper = __high; \
- \
- if (__high) \
- __asm__("divu $0, %z2, %z3" \
- : "=h" (__upper), "=l" (__high) \
- : "Jr" (__high), "Jr" (__base) \
- : GCC_REG_ACCUM); \
- \
- __mod = do_div64_32(__low, __upper, __low, __base); \
- \
- __quot = __high; \
- __quot = __quot << 32 | __low; \
- (n) = __quot; \
- __mod; })
-
-#endif /* (_MIPS_SZLONG == 32) */
-
-#if (_MIPS_SZLONG == 64)
-
-/*
- * Hey, we're already 64-bit, no
- * need to play games..
- */
-#define do_div(n, base) ({ \
- unsigned long __quot; \
- unsigned int __mod; \
- unsigned long __div; \
- unsigned int __base; \
- \
- __div = (n); \
- __base = (base); \
- \
- __mod = __div % __base; \
- __quot = __div / __base; \
- \
- (n) = __quot; \
- __mod; })
+#define __div64_32(n, base) \
+({ \
+ unsigned long __cf, __tmp, __tmp2, __i; \
+ unsigned long __quot32, __mod32; \
+ unsigned long __high, __low; \
+ unsigned long long __n; \
+ \
+ __high = *__n >> 32; \
+ __low = __n; \
+ __asm__( \
+ " .set push \n" \
+ " .set noat \n" \
+ " .set noreorder \n" \
+ " move %2, $0 \n" \
+ " move %3, $0 \n" \
+ " b 1f \n" \
+ " li %4, 0x21 \n" \
+ "0: \n" \
+ " sll $1, %0, 0x1 \n" \
+ " srl %3, %0, 0x1f \n" \
+ " or %0, $1, %5 \n" \
+ " sll %1, %1, 0x1 \n" \
+ " sll %2, %2, 0x1 \n" \
+ "1: \n" \
+ " bnez %3, 2f \n" \
+ " sltu %5, %0, %z6 \n" \
+ " bnez %5, 3f \n" \
+ "2: \n" \
+ " addiu %4, %4, -1 \n" \
+ " subu %0, %0, %z6 \n" \
+ " addiu %2, %2, 1 \n" \
+ "3: \n" \
+ " bnez %4, 0b\n\t" \
+ " srl %5, %1, 0x1f\n\t" \
+ " .set pop" \
+ : "=&r" (__mod32), "=&r" (__tmp), \
+ "=&r" (__quot32), "=&r" (__cf), \
+ "=&r" (__i), "=&r" (__tmp2) \
+ : "Jr" (base), "0" (__high), "1" (__low)); \
+ \
+ (__n) = __quot32; \
+ __mod32; \
+})
-#endif /* (_MIPS_SZLONG == 64) */
+#endif /* BITS_PER_LONG == 64 */
-#endif /* _ASM_DIV64_H */
+#endif /* __ASM_DIV64_H */
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