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-rw-r--r--arch/powerpc/kernel/fadump.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index d2e1476d9870..466569e26278 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -209,14 +209,20 @@ static unsigned long init_fadump_mem_struct(struct fadump_mem_struct *fdm,
*/
static inline unsigned long fadump_calculate_reserve_size(void)
{
- unsigned long size;
+ int ret;
+ unsigned long long base, size;
/*
- * Check if the size is specified through fadump_reserve_mem= cmdline
- * option. If yes, then use that.
+ * Check if the size is specified through crashkernel= cmdline
+ * option. If yes, then use that but ignore base as fadump
+ * reserves memory at end of RAM.
*/
- if (fw_dump.reserve_bootvar)
+ ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
+ &size, &base);
+ if (ret == 0 && size > 0) {
+ fw_dump.reserve_bootvar = (unsigned long)size;
return fw_dump.reserve_bootvar;
+ }
/* divide by 20 to get 5% of value */
size = memblock_end_of_DRAM() / 20;
@@ -371,15 +377,6 @@ static int __init early_fadump_param(char *p)
}
early_param("fadump", early_fadump_param);
-/* Look for fadump_reserve_mem= cmdline option */
-static int __init early_fadump_reserve_mem(char *p)
-{
- if (p)
- fw_dump.reserve_bootvar = memparse(p, &p);
- return 0;
-}
-early_param("fadump_reserve_mem", early_fadump_reserve_mem);
-
static void register_fw_dump(struct fadump_mem_struct *fdm)
{
int rc;