diff options
Diffstat (limited to 'arch/mips/lib/memcpy.S')
| -rw-r--r-- | arch/mips/lib/memcpy.S | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S index cee0319dcf..5c01dbdcd3 100644 --- a/arch/mips/lib/memcpy.S +++ b/arch/mips/lib/memcpy.S @@ -20,7 +20,26 @@ #define src a1 #define len a2 -#define LOADK lw /* No exception */ +#ifdef CONFIG_64BIT + +#define LOAD(reg, addr) ld reg, addr +#define LOADL(reg, addr) ldl reg, addr +#define LOADR(reg, addr) ldr reg, addr +#define STOREL(reg, addr) sdl reg, addr +#define STORER(reg, addr) sdr reg, addr +#define STORE(reg, addr) sd reg, addr +#define ADD daddu +#define SUB dsubu +#define SRL dsrl +#define SRA dsra +#define SLL dsll +#define SLLV dsllv +#define SRLV dsrlv +#define NBYTES 8 +#define LOG_NBYTES 3 + +#else + #define LOAD(reg, addr) lw reg, addr #define LOADL(reg, addr) lwl reg, addr #define LOADR(reg, addr) lwr reg, addr @@ -37,6 +56,8 @@ #define NBYTES 4 #define LOG_NBYTES 2 +#endif /* CONFIG_64BIT */ + #define LOADB(reg, addr) lb reg, addr #define STOREB(reg, addr) sb reg, addr @@ -101,8 +122,8 @@ LEAF(memcpy) /* a0=dst a1=src a2=len */ LOAD(t2, UNIT(2)(src)) LOAD(t3, UNIT(3)(src)) SUB len, len, 8*NBYTES - LOAD(t4, UNIT(4)(src)) - LOAD(t7, UNIT(5)(src)) + LOAD(ta0, UNIT(4)(src)) + LOAD(ta3, UNIT(5)(src)) STORE(t0, UNIT(0)(dst)) STORE(t1, UNIT(1)(dst)) LOAD(t0, UNIT(6)(src)) @@ -111,8 +132,8 @@ LEAF(memcpy) /* a0=dst a1=src a2=len */ ADD dst, dst, 8*NBYTES STORE(t2, UNIT(-6)(dst)) STORE(t3, UNIT(-5)(dst)) - STORE(t4, UNIT(-4)(dst)) - STORE(t7, UNIT(-3)(dst)) + STORE(ta0, UNIT(-4)(dst)) + STORE(ta3, UNIT(-3)(dst)) STORE(t0, UNIT(-2)(dst)) STORE(t1, UNIT(-1)(dst)) bne len, rem, 1b @@ -263,6 +284,12 @@ LEAF(memcpy) /* a0=dst a1=src a2=len */ COPY_BYTE(0) COPY_BYTE(1) +#ifdef CONFIG_64BIT + COPY_BYTE(2) + COPY_BYTE(3) + COPY_BYTE(4) + COPY_BYTE(5) +#endif LOADB(t0, NBYTES-2(src)) SUB len, len, 1 jr ra |