ia64/linux-2.6.18-xen.hg

view include/asm-h8300/page.h @ 452:c7ed6fe5dca0

kexec: dont initialise regions in reserve_memory()

There is no need to initialise efi_memmap_res and boot_param_res in
reserve_memory() for the initial xen domain as it is done in
machine_kexec_setup_resources() using values from the kexec hypercall.

Signed-off-by: Simon Horman <horms@verge.net.au>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Feb 28 10:55:18 2008 +0000 (2008-02-28)
parents 3e8752eb6d9c
children
line source
1 #ifndef _H8300_PAGE_H
2 #define _H8300_PAGE_H
4 #ifdef __KERNEL__
6 /* PAGE_SHIFT determines the page size */
8 #define PAGE_SHIFT (12)
9 #define PAGE_SIZE (1UL << PAGE_SHIFT)
10 #define PAGE_MASK (~(PAGE_SIZE-1))
12 #include <asm/setup.h>
14 #ifndef __ASSEMBLY__
16 #define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
17 #define free_user_page(page, addr) free_page(addr)
19 #define clear_page(page) memset((page), 0, PAGE_SIZE)
20 #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
22 #define clear_user_page(page, vaddr, pg) clear_page(page)
23 #define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
25 #define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr)
26 #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
28 /*
29 * These are used to make use of C type-checking..
30 */
31 typedef struct { unsigned long pte; } pte_t;
32 typedef struct { unsigned long pmd[16]; } pmd_t;
33 typedef struct { unsigned long pgd; } pgd_t;
34 typedef struct { unsigned long pgprot; } pgprot_t;
36 #define pte_val(x) ((x).pte)
37 #define pmd_val(x) ((&x)->pmd[0])
38 #define pgd_val(x) ((x).pgd)
39 #define pgprot_val(x) ((x).pgprot)
41 #define __pte(x) ((pte_t) { (x) } )
42 #define __pmd(x) ((pmd_t) { (x) } )
43 #define __pgd(x) ((pgd_t) { (x) } )
44 #define __pgprot(x) ((pgprot_t) { (x) } )
46 /* to align the pointer to the (next) page boundary */
47 #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
49 extern unsigned long memory_start;
50 extern unsigned long memory_end;
52 #endif /* !__ASSEMBLY__ */
54 #include <asm/page_offset.h>
56 #define PAGE_OFFSET (PAGE_OFFSET_RAW)
58 #ifndef __ASSEMBLY__
60 #define __pa(vaddr) virt_to_phys(vaddr)
61 #define __va(paddr) phys_to_virt((unsigned long)paddr)
63 #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
64 #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
66 #define MAP_NR(addr) (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)
67 #define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
68 #define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
69 #define pfn_valid(page) (page < max_mapnr)
71 #define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
73 #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
74 ((void *)(kaddr) < (void *)memory_end))
76 #endif /* __ASSEMBLY__ */
78 #include <asm-generic/memory_model.h>
79 #include <asm-generic/page.h>
81 #endif /* __KERNEL__ */
83 #endif /* _H8300_PAGE_H */