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authorBecky Bruce <beckyb@kernel.crashing.org>2009-05-08 12:19:27 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-05-15 16:43:41 +1000
commit49a849652513235a244dfbf5e58c54f796bd1148 (patch)
tree809fe33bad6255fab153fb5a7f03170150ab88c7
parent31207dab7d2e63795eb15823947bd2f7025b08e2 (diff)
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>
-rw-r--r--arch/powerpc/include/asm/system.h2
-rw-r--r--arch/powerpc/kernel/machine_kexec.c4
-rw-r--r--arch/powerpc/kernel/prom.c8
-rw-r--r--arch/powerpc/mm/mem.c2
4 files changed, 8 insertions, 8 deletions
diff --git a/arch/powerpc/include/asm/system.h b/arch/powerpc/include/asm/system.h
index f612798e1c93..2b2420a49884 100644
--- a/arch/powerpc/include/asm/system.h
+++ b/arch/powerpc/include/asm/system.h
@@ -212,7 +212,7 @@ extern struct task_struct *_switch(struct thread_struct *prev,
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 d59e2b1bdcba..bb3d893a8353 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -125,8 +125,8 @@ void __init reserve_crashkernel(void)
/* 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 5ec6a9e23933..ce01ff2474da 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -426,7 +426,7 @@ static int __init early_parse_mem(char *p)
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 @@ static inline void __init phyp_dump_reserve_mem(void) {}
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 @@ void __init early_init_devtree(void *params)
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 @@ void __init early_init_devtree(void *params)
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 f668fa9ba804..d0602a76bf7f 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;