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authorHelge Deller <deller@gmx.de>2015-11-20 11:17:27 +0100
committerHelge Deller <deller@gmx.de>2015-11-22 12:22:53 +0100
commit332b42e4eb6e955f3be0bbbf1f272aa943954d98 (patch)
treea57ab70d840236f0bc601967a32a3e903b787d1a /arch/parisc/include/asm
parent4182d0cdf853fb044b969318289ae9f451f69c86 (diff)
downloadlinux-332b42e4eb6e955f3be0bbbf1f272aa943954d98.tar.gz
parisc: Increase initial kernel mapping to 32MB on 64bit kernel
For the 64bit kernel the initially 16 MB kernel memory might become too small if you build a kernel with many modules built-in and with kernel text and data areas mapped on huge pages. This patch increases the initial mapping to 32MB for 64bit kernels and keeps 16MB for 32bit kernels. Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include/asm')
-rw-r--r--arch/parisc/include/asm/pgtable.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 638317ae276e..d8534f95915a 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -83,7 +83,11 @@ 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 */
-#define KERNEL_INITIAL_ORDER 24 /* 0 to 1<<24 = 16MB */
+#ifdef CONFIG_64BIT
+#define KERNEL_INITIAL_ORDER 25 /* 1<<25 = 32MB */
+#else
+#define KERNEL_INITIAL_ORDER 24 /* 1<<24 = 16MB */
+#endif
#define KERNEL_INITIAL_SIZE (1 << KERNEL_INITIAL_ORDER)
#if CONFIG_PGTABLE_LEVELS == 3