linux-kernel - [PATCH] x86: make 64bit hpet_set

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Date:	Sun, 13 Jul 2008 14:32:37 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: make 64bit hpet_set_mapping to use ioremap too


need to apply after
	[PATCH] x86: get x86_phys_bits early

Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index ea230ec..bfef53c 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -35,24 +35,6 @@ static inline void hpet_writel(unsigned long d, unsigned long a)
 	writel(d, hpet_virt_address + a);
 }
 
-#ifdef CONFIG_X86_64
-
-#include <asm/pgtable.h>
-
-static inline void hpet_set_mapping(void)
-{
-	set_fixmap_nocache(FIX_HPET_BASE, hpet_address);
-	__set_fixmap(VSYSCALL_HPET, hpet_address, PAGE_KERNEL_VSYSCALL_NOCACHE);
-	hpet_virt_address = (void __iomem *)fix_to_virt(FIX_HPET_BASE);
-}
-
-static inline void hpet_clear_mapping(void)
-{
-	hpet_virt_address = NULL;
-}
-
-#else
-
 static inline void hpet_set_mapping(void)
 {
 	hpet_virt_address = ioremap_nocache(hpet_address, HPET_MMAP_SIZE);
@@ -63,7 +45,6 @@ static inline void hpet_clear_mapping(void)
 	iounmap(hpet_virt_address);
 	hpet_virt_address = NULL;
 }
-#endif
 
 /*
  * HPET command line enable / disable
--
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