Patch "parisc: Increase initial kernel mapping size" has been added to the 4.8-stable tree

Patch "parisc: Increase initial kernel mapping size" has been added to the 4.8-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    parisc: Increase initial kernel mapping size

to the 4.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     parisc-increase-initial-kernel-mapping-size.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 65bf34f59594c11f13d371c5334a6a0a385cd7ae Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sun, 9 Oct 2016 09:57:54 +0200
Subject: parisc: Increase initial kernel mapping size

From: Helge Deller <deller@gmx.de>

commit 65bf34f59594c11f13d371c5334a6a0a385cd7ae upstream.

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.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/include/asm/pgtable.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -83,10 +83,10 @@ static inline void purge_tlb_entries(str
 	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)
 


Patches currently in stable-queue which might be from deller@gmx.de are

queue-4.8/parisc-fix-kernel-memory-layout-regarding-position-of-__gp.patch
queue-4.8/parisc-increase-initial-kernel-mapping-size.patch
queue-4.8/parisc-increase-kernel_initial_size-for-32-bit-smp-kernels.patch
queue-4.8/parisc-fix-self-detected-cpu-stall-warnings-on-mako-machines.patch