From 4aeaa223433355a281559033f1e7600bfd73238e Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 9 Oct 2008 18:42:55 +0900 Subject: [PATCH] sh: add dynamic crash base address support Add support for dynamic crash kernel base address. Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/kernel/setup.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index 5767f0a84cd7..e7152cc6930e 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -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"); - return; - } - - if (reserve_bootmem(crash_base, crash_size, + vp = alloc_bootmem_nopanic(crash_size); + if (!vp) { + printk(KERN_INFO "crashkernel allocation " + "failed\n"); + return; + } + 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");