summaryrefslogtreecommitdiffstats
path: root/arch/arm/mm/mmu.c
diff options
context:
space:
mode:
authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-09-30 19:31:44 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-09-30 21:34:16 +0100
commit6c5da7aced798c7781f054a76c769b85f0173561 (patch)
treea4713f081e16183b6ed00368658ee77bcca83cf6 /arch/arm/mm/mmu.c
parenteca73214c9c50e290b8dc823b41730b01788872d (diff)
downloadblackbird-op-linux-6c5da7aced798c7781f054a76c769b85f0173561.tar.gz
blackbird-op-linux-6c5da7aced798c7781f054a76c769b85f0173561.zip
[ARM] mm: move vmalloc= parsing to arch/arm/mm/mmu.c
There's no point scattering this around the tree, the parsing of the parameter might as well live beside the code which uses it. That also means we can make vmalloc_reserve a static variable. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/mmu.c')
-rw-r--r--arch/arm/mm/mmu.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index f03ad87f6baa..e7af83e569d7 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -566,6 +566,28 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
create_mapping(io_desc + i);
}
+static unsigned long __initdata vmalloc_reserve = SZ_128M;
+
+/*
+ * vmalloc=size forces the vmalloc area to be exactly 'size'
+ * bytes. This can be used to increase (or decrease) the vmalloc
+ * area - the default is 128m.
+ */
+static void __init early_vmalloc(char **arg)
+{
+ vmalloc_reserve = memparse(*arg, arg);
+
+ if (vmalloc_reserve < SZ_16M) {
+ vmalloc_reserve = SZ_16M;
+ printk(KERN_WARNING
+ "vmalloc area too small, limiting to %luMB\n",
+ vmalloc_reserve >> 20);
+ }
+}
+__early_param("vmalloc=", early_vmalloc);
+
+#define VMALLOC_MIN (void *)(VMALLOC_END - vmalloc_reserve)
+
static int __init check_membank_valid(struct membank *mb)
{
/*
OpenPOWER on IntegriCloud