[PATCH 1/2] x86: move max_pfn_mapped and max_low_pfn_mapped tosetup.c

From: Pekka Enberg
Date: Tue Apr 28 2009 - 09:01:28 EST


From: Pekka Enberg <penberg@xxxxxxxxxxxxxx>

This patch moves the max_pfn_mapped and max_low_pfn_mapped global
variables to kernel/setup.c where they're initialized.

[ Impact: cleanup ]
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
---
arch/x86/kernel/setup.c | 8 ++++++++
arch/x86/mm/init_32.c | 4 +---
arch/x86/mm/init_64.c | 8 --------
3 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index b415843..0d77e56 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -112,6 +112,14 @@
#define ARCH_SETUP
#endif

+/*
+ * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
+ * The direct mapping extends to max_pfn_mapped, so that we can directly access
+ * apertures, ACPI and other tables without having to play with fixmaps.
+ */
+unsigned long max_low_pfn_mapped;
+unsigned long max_pfn_mapped;
+
RESERVE_BRK(dmi_alloc, 65536);

unsigned int boot_cpu_id __read_mostly;
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 749559e..ce2ec31 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -49,11 +49,9 @@
#include <asm/paravirt.h>
#include <asm/setup.h>
#include <asm/cacheflush.h>
+#include <asm/page_types.h>
#include <asm/init.h>

-unsigned long max_low_pfn_mapped;
-unsigned long max_pfn_mapped;
-
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
unsigned long highstart_pfn, highend_pfn;

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 1753e80..abb932f 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -50,14 +50,6 @@
#include <asm/cacheflush.h>
#include <asm/init.h>

-/*
- * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
- * The direct mapping extends to max_pfn_mapped, so that we can directly access
- * apertures, ACPI and other tables without having to play with fixmaps.
- */
-unsigned long max_low_pfn_mapped;
-unsigned long max_pfn_mapped;
-
static unsigned long dma_reserve __initdata;

DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
--
1.5.6.3



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