diff options
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/numa.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index a0214aa2dd78..baba6403488b 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -184,11 +184,19 @@ static const __be32 *of_get_associativity(struct device_node *dev) * it exists (the property exists only in kexec/kdump kernels, * added by kexec-tools) */ -static const __be32 *of_get_usable_memory(struct device_node *memory) +static const __be32 *of_get_usable_memory(void) { + struct device_node *memory; const __be32 *prop; u32 len; + + memory = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory"); + if (!memory) + return NULL; + prop = of_get_property(memory, "linux,drconf-usable-memory", &len); + of_node_put(memory); + if (!prop || len < sizeof(unsigned int)) return NULL; return prop; @@ -674,7 +682,7 @@ static void __init parse_drconf_memory(struct device_node *memory) return; /* check if this is a kexec/kdump kernel */ - usm = of_get_usable_memory(memory); + usm = of_get_usable_memory(); if (usm != NULL) is_kexec_kdump = 1; |