| /* |
| * This file contains the implementation of the |
| * Linux re-IPL support |
| * |
| * (C) Copyright IBM Corp. 2005 |
| * |
| * Author(s): Volker Sameske (sameske@de.ibm.com) |
| * |
| */ |
| |
| #include <linux/kernel.h> |
| |
| static unsigned int reipl_diag_rc1; |
| static unsigned int reipl_diag_rc2; |
| |
| /* |
| * re-IPL the system using the last used IPL parameters |
| */ |
| void reipl_diag(void) |
| { |
| asm volatile ( |
| " la %%r4,0\n" |
| " la %%r5,0\n" |
| " diag %%r4,%2,0x308\n" |
| "0:\n" |
| " st %%r4,%0\n" |
| " st %%r5,%1\n" |
| ".section __ex_table,\"a\"\n" |
| #ifdef __s390x__ |
| " .align 8\n" |
| " .quad 0b, 0b\n" |
| #else |
| " .align 4\n" |
| " .long 0b, 0b\n" |
| #endif |
| ".previous\n" |
| : "=m" (reipl_diag_rc1), "=m" (reipl_diag_rc2) |
| : "d" (3) : "cc", "4", "5" ); |
| } |
