diff options
Diffstat (limited to 'target/linux/patches/2.6.29/mips-gcc-44.patch')
| -rw-r--r-- | target/linux/patches/2.6.29/mips-gcc-44.patch | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/target/linux/patches/2.6.29/mips-gcc-44.patch b/target/linux/patches/2.6.29/mips-gcc-44.patch new file mode 100644 index 000000000..ccee68b9b --- /dev/null +++ b/target/linux/patches/2.6.29/mips-gcc-44.patch @@ -0,0 +1,215 @@ +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 */ |