linux-kernel - [tip:x86/mm] x86: ifdef 32-bit and 64-bit setup in init_memory

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Message-ID: <tip-01ced9ec14ad1b4f8a533c2f2b5a4fe4c92c1099@git.kernel.org>
Date:	Thu, 5 Mar 2009 13:37:52 GMT
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	yinghai@...nel.org, penberg@...helsinki.fi, tglx@...utronix.de,
	mingo@...e.hu
Subject: [tip:x86/mm] x86: ifdef 32-bit and 64-bit setup in init_memory_mapping()

Commit-ID:  01ced9ec14ad1b4f8a533c2f2b5a4fe4c92c1099
Gitweb:     http://git.kernel.org/tip/01ced9ec14ad1b4f8a533c2f2b5a4fe4c92c1099
Author:     "Pekka Enberg" <penberg@...helsinki.fi>
AuthorDate: Thu, 5 Mar 2009 14:55:01 +0200
Commit:     Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 5 Mar 2009 14:17:15 +0100

x86: ifdef 32-bit and 64-bit setup in init_memory_mapping()

Impact: cleanup

To reduce the diff between the 32-bit and 64-bit versions of
init_memory_mapping(), ifdef configuration specific setup code
in the function.

Signed-off-by: Pekka Enberg <penberg@...helsinki.fi>
Cc: Yinghai Lu <yinghai@...nel.org>
LKML-Reference: <1236257708-27269-10-git-send-email-penberg@...helsinki.fi>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 arch/x86/mm/init_32.c |    6 ++++++
 arch/x86/mm/init_64.c |    8 ++++++++
 2 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 0a3707f..3f91bdc 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -1054,10 +1054,16 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
 						   mr[i].page_size_mask);
 #endif
 
+#ifdef CONFIG_X86_32
 	early_ioremap_page_table_range_init();
 
 	load_cr3(swapper_pg_dir);
+#endif
 
+#ifdef CONFIG_X86_64
+	if (!after_bootmem)
+		mmu_cr4_features = read_cr4();
+#endif
 	__flush_tlb_all();
 
 	if (!after_bootmem && table_end > table_start)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index e4fadea..5ecb23a 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -832,8 +832,16 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
 						   mr[i].page_size_mask);
 #endif
 
+#ifdef CONFIG_X86_32
+	early_ioremap_page_table_range_init();
+
+	load_cr3(swapper_pg_dir);
+#endif
+
+#ifdef CONFIG_X86_64
 	if (!after_bootmem)
 		mmu_cr4_features = read_cr4();
+#endif
 	__flush_tlb_all();
 
 	if (!after_bootmem && table_end > table_start)
--
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