diff options
| author | Magnus Damm <damm@igel.co.jp> | 2008-10-09 18:42:55 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-10-20 11:38:40 +0900 |
| commit | 4aeaa223433355a281559033f1e7600bfd73238e (patch) | |
| tree | fd8041c536da005a99ba3a094b43de09f27f0f88 /arch/sh/kernel/setup.c | |
| parent | a30c89ad41099f58922e0941e346e7c4371655b9 (diff) | |
| download | lwn-4aeaa223433355a281559033f1e7600bfd73238e.tar.gz lwn-4aeaa223433355a281559033f1e7600bfd73238e.zip | |
sh: add dynamic crash base address support
Add support for dynamic crash kernel base address.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/setup.c')
| -rw-r--r-- | arch/sh/kernel/setup.c | 15 |
1 files 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"); |