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Diffstat (limited to 'arch/s390/include/asm/pgtable.h')
-rw-r--r--arch/s390/include/asm/pgtable.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index b5dbae78969b..794746a32806 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -23,6 +23,7 @@
extern pgd_t swapper_pg_dir[];
extern void paging_init(void);
+extern unsigned long s390_invalid_asce;
enum {
PG_DIRECT_MAP_4K = 0,
@@ -79,15 +80,15 @@ extern unsigned long zero_page_mask;
/*
* The vmalloc and module area will always be on the topmost area of the
- * kernel mapping. We reserve 128GB (64bit) for vmalloc and modules.
- * On 64 bit kernels we have a 2GB area at the top of the vmalloc area where
- * modules will reside. That makes sure that inter module branches always
- * happen without trampolines and in addition the placement within a 2GB frame
- * is branch prediction unit friendly.
+ * kernel mapping. 512GB are reserved for vmalloc by default.
+ * At the top of the vmalloc area a 2GB area is reserved where modules
+ * will reside. That makes sure that inter module branches always
+ * happen without trampolines and in addition the placement within a
+ * 2GB frame is branch prediction unit friendly.
*/
extern unsigned long VMALLOC_START;
extern unsigned long VMALLOC_END;
-#define VMALLOC_DEFAULT_SIZE ((128UL << 30) - MODULES_LEN)
+#define VMALLOC_DEFAULT_SIZE ((512UL << 30) - MODULES_LEN)
extern struct page *vmemmap;
extern unsigned long vmemmap_size;