#include <linux/crash_dump.h>
#include <linux/bootmem.h>
#include <linux/lmb.h>
+#include <asm/code-patching.h>
#include <asm/kdump.h>
#include <asm/prom.h>
#include <asm/firmware.h>
static void __init create_trampoline(unsigned long addr)
{
+ unsigned int *p = (unsigned int *)addr;
+
/* The maximum range of a single instruction branch, is the current
* instruction's address + (32 MB - 4) bytes. For the trampoline we
* need to branch to current address + 32 MB. So we insert a nop at
* branch to "addr" we jump to ("addr" + 32 MB). Although it requires
* two instructions it doesn't require any registers.
*/
- create_instruction(addr, 0x60000000); /* nop */
- create_branch(addr + 4, addr + PHYSICAL_START, 0);
+ patch_instruction(p, PPC_NOP_INSTR);
+ patch_branch(++p, addr + PHYSICAL_START, 0);
}
void __init setup_kdump_trampoline(void)