Commit 4aeaa223 authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt
Browse files

sh: add dynamic crash base address support 



Add support for dynamic crash kernel base address.

Signed-off-by: default avatarMagnus Damm <damm@igel.co.jp>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent a30c89ad

arch/sh/kernel/setup.c

+9 −6
Original line number Diff line number Diff line
@@ -147,6 +147,7 @@ static void __init reserve_crashkernel(void) 
{

	unsigned long long free_mem;

	unsigned long long crash_size, crash_base;

	void *vp;

	int ret;



	free_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
@@ -155,12 +156,14 @@ static void __init reserve_crashkernel(void) 
			&crash_size, &crash_base);

	if (ret == 0 && crash_size) {

		if (crash_base <= 0) {

			printk(KERN_INFO "crashkernel reservation failed - "

					"you have to specify a base address\n");

			vp = alloc_bootmem_nopanic(crash_size); 

			if (!vp) {

				printk(KERN_INFO "crashkernel allocation "

				       "failed\n");

				return;

			}



		if (reserve_bootmem(crash_base, crash_size,

			crash_base = __pa(vp);

		} else if (reserve_bootmem(crash_base, crash_size,

					BOOTMEM_EXCLUSIVE) < 0) {

			printk(KERN_INFO "crashkernel reservation failed - "

					"memory is in use\n");