diff options
Diffstat (limited to 'target/linux/patches/3.10-nds32/futex.patch')
| -rw-r--r-- | target/linux/patches/3.10-nds32/futex.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/target/linux/patches/3.10-nds32/futex.patch b/target/linux/patches/3.10-nds32/futex.patch new file mode 100644 index 000000000..f45e04293 --- /dev/null +++ b/target/linux/patches/3.10-nds32/futex.patch @@ -0,0 +1,40 @@ +diff -Nur linux-3.10-nds32.orig/arch/nds32/include/asm/futex.h linux-3.10-nds32/arch/nds32/include/asm/futex.h +--- linux-3.10-nds32.orig/arch/nds32/include/asm/futex.h 2017-07-31 07:41:18.000000000 +0200 ++++ linux-3.10-nds32/arch/nds32/include/asm/futex.h 2019-10-15 22:59:44.514997184 +0200 +@@ -24,10 +24,10 @@ + #define __futex_atomic_op(insn, ret, oldval, tmp, uaddr, oparg) \ + smp_mb(); \ + asm volatile( \ +- " movi $r15, #0\n" \ +- "1: llw %1, [%2+$r15]\n" \ ++ " movi $ta, #0\n" \ ++ "1: llw %1, [%2+$ta]\n" \ + " " insn "\n" \ +- "2: scw %0, [%2+$r15]\n" \ ++ "2: scw %0, [%2+$ta]\n" \ + " beqz %0, 1b\n" \ + " movi %0, #0\n" \ + "3:\n" \ +@@ -47,18 +47,18 @@ + + smp_mb(); + asm volatile( +- " movi $r15, #0\n" +- "1: llw %1, [%6 + $r15]\n" ++ " movi $ta, #0\n" ++ "1: llw %1, [%6 + $ta]\n" + " sub %3, %1, %4\n" + " cmovz %2, %5, %3\n" + " cmovn %2, %1, %3\n" +- "2: scw %2, [%6 + $r15]\n" ++ "2: scw %2, [%6 + $ta]\n" + " beqz %2, 1b\n" + "3:\n " + __futex_atomic_ex_table("%7") + : "+&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (flags) + : "r" (oldval), "r" (newval), "r" (uaddr), "i" (-EFAULT) +- : "$r15", "memory"); ++ : "$ta", "memory"); + smp_mb(); + + *uval = val; |