#ifndef _PPC_PAGE_H
#define _PPC_PAGE_H
+#include <linux/config.h>
+#include <asm/asm-compat.h>
+
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
-#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)
/*
* Subtle: this is an int (not an unsigned long) and so it
/* This must match what is in arch/ppc/Makefile */
#define PAGE_OFFSET CONFIG_KERNEL_START
#define KERNELBASE PAGE_OFFSET
+#define is_kernel_addr(x) ((x) >= PAGE_OFFSET)
#ifndef __ASSEMBLY__
#define PTE_FMT "%.8lx"
#endif
+/* align addr on a size boundary - adjust address up/down if needed */
+#define _ALIGN_UP(addr,size) (((addr)+((size)-1))&(~((size)-1)))
+#define _ALIGN_DOWN(addr,size) ((addr)&(~((size)-1)))
+
+/* align addr on a size boundary - adjust address up if needed */
+#define _ALIGN(addr,size) _ALIGN_UP(addr,size)
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE)
+
+
#undef STRICT_MM_TYPECHECKS
#ifdef STRICT_MM_TYPECHECKS
#endif
-
-/* align addr on a size boundary - adjust address up if needed -- Cort */
-#define _ALIGN(addr,size) (((addr)+(size)-1)&(~((size)-1)))
-
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
struct page;
extern void clear_pages(void *page, int order);
static inline void clear_page(void *page) { clear_pages(page, 0); }
#define ___va(paddr) ((paddr)+PPC_MEMOFFSET)
#endif
+extern int page_is_ram(unsigned long pfn);
+
#define __pa(x) ___pa((unsigned long)(x))
#define __va(x) ((void *)(___va((unsigned long)(x))))
-#define pfn_to_page(pfn) (mem_map + ((pfn) - PPC_PGSTART))
-#define page_to_pfn(page) ((unsigned long)((page) - mem_map) + PPC_PGSTART)
+#define ARCH_PFN_OFFSET (PPC_PGSTART)
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define page_to_virt(page) __va(page_to_pfn(page) << PAGE_SHIFT)
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+/* We do define AT_SYSINFO_EHDR but don't use the gate mecanism */
+#define __HAVE_ARCH_GATE_AREA 1
+
+#define devmem_is_allowed(x) 1
+
+#include <asm-generic/memory_model.h>
#endif /* __KERNEL__ */
#endif /* _PPC_PAGE_H */