From: Guo Ren <ren_guo@xxxxxxxxx> The vr regs for vdsp only saved in task_switch not in every exception trap-in. The memcpy with vdsp instructions will destroy the vr regs for user space applications. Signed-off-by: Guo Ren <ren_guo@xxxxxxxxx> --- arch/csky/abiv2/memcpy.S | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/arch/csky/abiv2/memcpy.S b/arch/csky/abiv2/memcpy.S index 987fec6..145bf3a 100644 --- a/arch/csky/abiv2/memcpy.S +++ b/arch/csky/abiv2/memcpy.S @@ -27,13 +27,7 @@ ENTRY(memcpy) LABLE_ALIGN .L_len_larger_16bytes: -#if defined(__CSKY_VDSPV2__) - vldx.8 vr0, (r1), r19 - PRE_BNEZAD (r18) - addi r1, 16 - vstx.8 vr0, (r0), r19 - addi r0, 16 -#elif defined(__CK860__) +#if defined(__CK860__) ldw r3, (r1, 0) stw r3, (r0, 0) ldw r3, (r1, 4) -- 2.7.4
