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Date: Thu, 5 Mar 2009 14:55:07 +0200
From: Pekka Enberg <penberg@...helsinki.fi>
To: mingo@...e.hu
Cc: x86@...nel.org, linux-kernel@...r.kernel.org,
Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 16/17] x86: unify kernel_physical_mapping_init() function signatures
Impact: cleanup
In preparation for moving the function declaration to a header file, unify
32-bit and 64-bit signatures.
Cc: Yinghai Lu <yinghai@...nel.org>
Signed-off-by: Pekka Enberg <penberg@...helsinki.fi>
---
arch/x86/mm/init.c | 13 +++----------
arch/x86/mm/init_32.c | 13 ++++++++++---
arch/x86/mm/init_64.c | 2 +-
3 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 5bbdfe7..6475693 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -11,17 +11,12 @@
#ifdef CONFIG_X86_32
extern void __init early_ioremap_page_table_range_init(void);
-extern void __init kernel_physical_mapping_init(unsigned long start_pfn,
- unsigned long end_pfn,
- int use_pse);
#endif
-#ifdef CONFIG_X86_64
-extern unsigned long __meminit
+extern unsigned long __init
kernel_physical_mapping_init(unsigned long start,
unsigned long end,
unsigned long page_size_mask);
-#endif
unsigned long __initdata e820_table_start;
unsigned long __meminitdata e820_table_end;
@@ -301,10 +296,8 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
#ifdef CONFIG_X86_32
for (i = 0; i < nr_range; i++)
- kernel_physical_mapping_init(
- mr[i].start >> PAGE_SHIFT,
- mr[i].end >> PAGE_SHIFT,
- mr[i].page_size_mask == (1<<PG_LEVEL_2M));
+ kernel_physical_mapping_init(mr[i].start, mr[i].end,
+ mr[i].page_size_mask);
ret = end;
#else /* CONFIG_X86_64 */
for (i = 0; i < nr_range; i++)
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index e9df0d9..5ca9c6c 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -223,10 +223,13 @@ static inline int is_kernel_text(unsigned long addr)
* of max_low_pfn pages, by creating page tables starting from address
* PAGE_OFFSET:
*/
-void __init kernel_physical_mapping_init(unsigned long start_pfn,
- unsigned long end_pfn,
- int use_pse)
+unsigned long __init
+kernel_physical_mapping_init(unsigned long start,
+ unsigned long end,
+ unsigned long page_size_mask)
{
+ int use_pse = page_size_mask == (1<<PG_LEVEL_2M);
+ unsigned long start_pfn, end_pfn;
pgd_t *pgd_base = swapper_pg_dir;
int pgd_idx, pmd_idx, pte_ofs;
unsigned long pfn;
@@ -236,6 +239,9 @@ void __init kernel_physical_mapping_init(unsigned long start_pfn,
unsigned pages_2m, pages_4k;
int mapping_iter;
+ start_pfn = start >> PAGE_SHIFT;
+ end_pfn = end >> PAGE_SHIFT;
+
/*
* First iteration will setup identity mapping using large/small pages
* based on use_pse, with other attributes same as set by
@@ -350,6 +356,7 @@ repeat:
mapping_iter = 2;
goto repeat;
}
+ return 0;
}
pte_t *kmap_pte;
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index a1d33c5..f441ae3 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -539,7 +539,7 @@ phys_pud_update(pgd_t *pgd, unsigned long addr, unsigned long end,
return phys_pud_init(pud, addr, end, page_size_mask);
}
-unsigned long __meminit
+unsigned long __init
kernel_physical_mapping_init(unsigned long start,
unsigned long end,
unsigned long page_size_mask)
--
1.5.4.3
--
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