From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 30 Jan 2008 12:32:43 +0000 (+0100)
Subject: x86: page.h: move pa and va related things
X-Git-Tag: v2.6.25-rc1~1143^2~401
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=98fd5aee348f0420afd1c636790d50aaaec6ceec;p=platform%2Fkernel%2Flinux-3.10.git

x86: page.h: move pa and va related things

# HG changeset patch
# User Jeremy Fitzhardinge <jeremy@xensource.com>
# Date 1199319656 28800
# Node ID d617b72a0cc9d14bde2087d065c36d4ed3265761
# Parent  3bd7db6e85e66e7f3362874802df26a82fcb2d92
x86: page.h: move pa and va related things

Move and unify the virtual<->physical address space conversion
functions.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index ef393c3..9830eeb 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -80,6 +80,9 @@
 void clear_page(void *page);
 void copy_page(void *to, void *from);
 
+extern unsigned long __phys_addr(unsigned long);
+#define __phys_reloc_hide(x)	(x)
+
 /*
  * These are used to make use of C type-checking..
  */
@@ -174,6 +177,13 @@ static inline pte_t native_make_pte(unsigned long val)
 #endif
 
 #ifndef __ASSEMBLY__
+#define __phys_addr(x)		((x)-PAGE_OFFSET)
+#define __phys_reloc_hide(x)	RELOC_HIDE((x), 0)
+
+#ifdef CONFIG_FLATMEM
+#define pfn_valid(pfn)		((pfn) < max_mapnr)
+#endif /* CONFIG_FLATMEM */
+
 #ifdef CONFIG_X86_USE_3DNOW
 #include <asm/mmx.h>
 
@@ -299,6 +309,20 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
 
 #endif	/* CONFIG_PARAVIRT */
 
+#define __pa(x)		__phys_addr((unsigned long)(x))
+/* __pa_symbol should be used for C visible symbols.
+   This seems to be the official gcc blessed way to do such arithmetic. */
+#define __pa_symbol(x)	__pa(__phys_reloc_hide((unsigned long)(x)))
+
+#define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
+
+#define __boot_va(x)		__va(x)
+#define __boot_pa(x)		__pa(x)
+
+#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
+#define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+
 #endif	/* __ASSEMBLY__ */
 
 
diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h
index 2d60661..a27424a 100644
--- a/include/asm-x86/page_32.h
+++ b/include/asm-x86/page_32.h
@@ -29,18 +29,7 @@ extern int page_is_ram(unsigned long pagenr);
 
 #define VMALLOC_RESERVE		((unsigned long)__VMALLOC_RESERVE)
 #define MAXMEM			(-__PAGE_OFFSET-__VMALLOC_RESERVE)
-#define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
-/* __pa_symbol should be used for C visible symbols.
-   This seems to be the official gcc blessed way to do such arithmetic. */
-#define __pa_symbol(x)          __pa(RELOC_HIDE((unsigned long)(x),0))
-#define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
-#define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
-#ifdef CONFIG_FLATMEM
-#define pfn_valid(pfn)		((pfn) < max_mapnr)
-#endif /* CONFIG_FLATMEM */
-#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
-
-#define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+
 
 #include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index f8a07bf..7094684 100644
--- a/include/asm-x86/page_64.h
+++ b/include/asm-x86/page_64.h
@@ -16,21 +16,8 @@ extern unsigned long phys_base;
 
 #include <asm/bug.h>
 
-extern unsigned long __phys_addr(unsigned long);
-
 #endif /* __ASSEMBLY__ */
 
-#define __pa(x)		__phys_addr((unsigned long)(x))
-#define __pa_symbol(x)	__phys_addr((unsigned long)(x))
-
-#define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
-#define __boot_va(x)		__va(x)
-#define __boot_pa(x)		__pa(x)
-
-#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
-#define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
-#define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
-
 #define __HAVE_ARCH_GATE_AREA 1	
 #define vmemmap ((struct page *)VMEMMAP_START)