vserver 1.9.3

[linux-2.6.git] / include / asm-ppc64 / page.h

diff --git a/include/asm-ppc64/page.h b/include/asm-ppc64/page.h
index 984602a..ac09872 100644 (file)
--- a/include/asm-ppc64/page.h
+++ b/include/asm-ppc64/page.h
@@ -12,30 +12,35 @@
 
 #include <linux/config.h>
 
-/* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT     12
-#ifndef __ASSEMBLY__
-# define PAGE_SIZE     (1UL << PAGE_SHIFT)
+#ifdef __ASSEMBLY__
+  #define ASM_CONST(x) x
 #else
-# define PAGE_SIZE     (1 << PAGE_SHIFT)
+  #define __ASM_CONST(x) x##UL
+  #define ASM_CONST(x) __ASM_CONST(x)
 #endif
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT     12
+#define PAGE_SIZE      (ASM_CONST(1) << PAGE_SHIFT)
 #define PAGE_MASK      (~(PAGE_SIZE-1))
 #define PAGE_OFFSET_MASK (PAGE_SIZE-1)
 
 #define SID_SHIFT       28
-#define SID_MASK        0xfffffffff
+#define SID_MASK        0xfffffffffUL
+#define ESID_MASK      0xfffffffff0000000UL
 #define GET_ESID(x)     (((x) >> SID_SHIFT) & SID_MASK)
 
-#ifdef CONFIG_HUGETLB_PAGE
-
 #define HPAGE_SHIFT    24
 #define HPAGE_SIZE     ((1UL) << HPAGE_SHIFT)
 #define HPAGE_MASK     (~(HPAGE_SIZE - 1))
+
+#ifdef CONFIG_HUGETLB_PAGE
+
 #define HUGETLB_PAGE_ORDER     (HPAGE_SHIFT - PAGE_SHIFT)
 
 /* For 64-bit processes the hugepage range is 1T-1.5T */
-#define TASK_HPAGE_BASE        (0x0000010000000000UL)
-#define TASK_HPAGE_END         (0x0000018000000000UL)
+#define TASK_HPAGE_BASE ASM_CONST(0x0000010000000000)
+#define TASK_HPAGE_END         ASM_CONST(0x0000018000000000)
 
 #define LOW_ESID_MASK(addr, len)       (((1U << (GET_ESID(addr+len-1)+1)) \
                                        - (1U << GET_ESID(addr))) & 0xffff)
@@ -177,8 +182,7 @@ static inline int get_order(unsigned long size)
 
 #define __pa(x) ((unsigned long)(x)-PAGE_OFFSET)
 
-/* Not 100% correct, for use by /dev/mem only */
-extern int page_is_ram(unsigned long physaddr);
+extern int page_is_ram(unsigned long pfn);
 
 #endif /* __ASSEMBLY__ */
 
@@ -196,11 +200,11 @@ extern int page_is_ram(unsigned long physaddr);
 /*       KERNELBASE is defined for performance reasons. */
 /*       When KERNELBASE moves, those macros may have   */
 /*             to change!                               */
-#define PAGE_OFFSET     0xC000000000000000
+#define PAGE_OFFSET     ASM_CONST(0xC000000000000000)
 #define KERNELBASE      PAGE_OFFSET
-#define VMALLOCBASE     0xD000000000000000
-#define IOREGIONBASE    0xE000000000000000
-#define EEHREGIONBASE   0xA000000000000000
+#define VMALLOCBASE     ASM_CONST(0xD000000000000000)
+#define IOREGIONBASE    ASM_CONST(0xE000000000000000)
+#define EEHREGIONBASE   ASM_CONST(0xA000000000000000)
 
 #define IO_REGION_ID       (IOREGIONBASE>>REGION_SHIFT)
 #define EEH_REGION_ID      (EEHREGIONBASE>>REGION_SHIFT)
@@ -209,17 +213,6 @@ extern int page_is_ram(unsigned long physaddr);
 #define USER_REGION_ID     (0UL)
 #define REGION_ID(X)      (((unsigned long)(X))>>REGION_SHIFT)
 
-/*
- * Define valid/invalid EA bits (for all ranges)
- */
-#define VALID_EA_BITS   (0x000001ffffffffffUL)
-#define INVALID_EA_BITS (~(REGION_MASK|VALID_EA_BITS))
-
-#define IS_VALID_REGION_ID(x) \
-        (((x) == USER_REGION_ID) || ((x) >= KERNEL_REGION_ID))
-#define IS_VALID_EA(x) \
-        ((!((x) & INVALID_EA_BITS)) && IS_VALID_REGION_ID(REGION_ID(x)))
-
 #define __bpn_to_ba(x) ((((unsigned long)(x))<<PAGE_SHIFT) + KERNELBASE)
 #define __ba_to_bpn(x) ((((unsigned long)(x)) & ~REGION_MASK) >> PAGE_SHIFT)
 
@@ -236,6 +229,7 @@ extern int page_is_ram(unsigned long physaddr);
 #endif
 
 #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)