powerpc: Allow mem=x cmdline to work with 4G+
We're currently choking on mem=4g (and above) due to memory_limit
being specified as an unsigned long. Make memory_limit
phys_addr_t to fix this.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/system.h b/arch/powerpc/include/asm/system.h
index f612798..2b2420a 100644
--- a/arch/powerpc/include/asm/system.h
+++ b/arch/powerpc/include/asm/system.h
@@ -212,7 +212,7 @@
extern unsigned int rtas_data;
extern int mem_init_done; /* set on boot once kmalloc can be called */
extern int init_bootmem_done; /* set on !NUMA once bootmem is available */
-extern unsigned long memory_limit;
+extern phys_addr_t memory_limit;
extern unsigned long klimit;
extern void *alloc_maybe_bootmem(size_t size, gfp_t mask);
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index d59e2b1..bb3d893 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -125,8 +125,8 @@
/* Crash kernel trumps memory limit */
if (memory_limit && memory_limit <= crashk_res.end) {
memory_limit = crashk_res.end + 1;
- printk("Adjusted memory limit for crashkernel, now 0x%lx\n",
- memory_limit);
+ printk("Adjusted memory limit for crashkernel, now 0x%llx\n",
+ (unsigned long long)memory_limit);
}
printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 5ec6a9e..ce01ff2 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -426,7 +426,7 @@
return 1;
memory_limit = PAGE_ALIGN(memparse(p, &p));
- DBG("memory limit = 0x%lx\n", memory_limit);
+ DBG("memory limit = 0x%llx\n", (unsigned long long)memory_limit);
return 0;
}
@@ -1160,7 +1160,7 @@
void __init early_init_devtree(void *params)
{
- unsigned long limit;
+ phys_addr_t limit;
DBG(" -> early_init_devtree(%p)\n", params);
@@ -1204,7 +1204,7 @@
limit = memory_limit;
if (! limit) {
- unsigned long memsize;
+ phys_addr_t memsize;
/* Ensure that total memory size is page-aligned, because
* otherwise mark_bootmem() gets upset. */
@@ -1218,7 +1218,7 @@
lmb_analyze();
lmb_dump_all();
- DBG("Phys. mem: %lx\n", lmb_phys_mem_size());
+ DBG("Phys. mem: %llx\n", lmb_phys_mem_size());
/* We may need to relocate the flat tree, do it now.
* FIXME .. and the initrd too? */
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index f668fa9..d0602a7 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -57,7 +57,7 @@
int init_bootmem_done;
int mem_init_done;
-unsigned long memory_limit;
+phys_addr_t memory_limit;
#ifdef CONFIG_HIGHMEM
pte_t *kmap_pte;