diff options
Diffstat (limited to 'target/linux/cavium-octeon/patches/001-handle_removal_h_constraint.patch')
-rw-r--r-- | target/linux/cavium-octeon/patches/001-handle_removal_h_constraint.patch | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/target/linux/cavium-octeon/patches/001-handle_removal_h_constraint.patch b/target/linux/cavium-octeon/patches/001-handle_removal_h_constraint.patch deleted file mode 100644 index b37b4a757..000000000 --- a/target/linux/cavium-octeon/patches/001-handle_removal_h_constraint.patch +++ /dev/null @@ -1,43 +0,0 @@ -This is an incomplete proof of concept that I applied to be able to -build a 64 bit kernel with GCC-4.4. It doesn't handle the 32 bit case -or the R4000_WAR case. - -Comments welcome. - -Signed-off-by: David Daney <ddaney@caviumnetworks.com> ---- - arch/mips/include/asm/compiler.h | 7 +++++++ - arch/mips/include/asm/delay.h | 4 ++++ - 2 files changed, 11 insertions(+), 0 deletions(-) - ---- a/arch/mips/include/asm/compiler.h -+++ b/arch/mips/include/asm/compiler.h -@@ -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 */ ---- a/arch/mips/include/asm/delay.h -+++ b/arch/mips/include/asm/delay.h -@@ -83,10 +83,14 @@ static inline void __udelay(unsigned lon - : "r" (usecs), "r" (lpj) - : GCC_REG_ACCUM); - else if (sizeof(long) == 8 && !R4000_WAR) -+#ifdef GCC_NO_H_CONSTRAINT -+ usecs = ((uint128_t)usecs * lpj) >> 64; -+#else - __asm__("dmultu\t%2, %3" - : "=h" (usecs), "=l" (lo) - : "r" (usecs), "r" (lpj) - : GCC_REG_ACCUM); -+#endif - else if (sizeof(long) == 8 && R4000_WAR) - __asm__("dmultu\t%3, %4\n\tmfhi\t%0" - : "=r" (usecs), "=h" (hi), "=l" (lo) |