diff options
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/early.c | 34 |
1 files changed, 1 insertions, 33 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 32daa0f84325..f40e1f293619 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -310,38 +310,6 @@ static int __init cad_setup(char *str) } early_param("cad", cad_setup); -static __init void memmove_early(void *dst, const void *src, size_t n) -{ - unsigned long addr; - long incr; - psw_t old; - - if (!n) - return; - incr = 1; - if (dst > src) { - incr = -incr; - dst += n - 1; - src += n - 1; - } - old = S390_lowcore.program_new_psw; - S390_lowcore.program_new_psw.mask = __extract_psw(); - asm volatile( - " larl %[addr],1f\n" - " stg %[addr],%[psw_pgm_addr]\n" - "0: mvc 0(1,%[dst]),0(%[src])\n" - " agr %[dst],%[incr]\n" - " agr %[src],%[incr]\n" - " brctg %[n],0b\n" - "1:\n" - : [addr] "=&d" (addr), - [psw_pgm_addr] "=Q" (S390_lowcore.program_new_psw.addr), - [dst] "+&a" (dst), [src] "+&a" (src), [n] "+d" (n) - : [incr] "d" (incr) - : "cc", "memory"); - S390_lowcore.program_new_psw = old; -} - static __init noinline void rescue_initrd(void) { #ifdef CONFIG_BLK_DEV_INITRD @@ -356,7 +324,7 @@ static __init noinline void rescue_initrd(void) return; if (INITRD_START >= min_initrd_addr) return; - memmove_early((void *) min_initrd_addr, (void *) INITRD_START, INITRD_SIZE); + memmove((void *) min_initrd_addr, (void *) INITRD_START, INITRD_SIZE); INITRD_START = min_initrd_addr; #endif } |