parisc: Increase initial kernel mapping size

Increase the initial kernel default page mapping size for 64-bit kernels to
64 MB and for 32-bit kernels to 32 MB.

Due to the additional support of ftrace, tracepoint and huge pages the kernel
size can exceed the sizes we used up to now.

Cc: stable@vger.kernel.org # 4.4+
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index e44bdb9078a56d15c5e5eea1ba027d0bb8f52d2b..c2c43f71468498828f924ebc54b9aa3f189ba95e 100644 (file)
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -83,10 +83,10 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
        printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
 
 /* This is the size of the initially mapped kernel memory */
-#if defined(CONFIG_64BIT) || defined(CONFIG_SMP)
-#define KERNEL_INITIAL_ORDER   25      /* 1<<25 = 32MB */
+#if defined(CONFIG_64BIT)
+#define KERNEL_INITIAL_ORDER   26      /* 1<<26 = 64MB */
 #else
-#define KERNEL_INITIAL_ORDER   24      /* 1<<24 = 16MB */
+#define KERNEL_INITIAL_ORDER   25      /* 1<<25 = 32MB */
 #endif
 #define KERNEL_INITIAL_SIZE    (1 << KERNEL_INITIAL_ORDER)