mirror of
https://github.com/torvalds/linux.git
synced 2024-11-17 09:31:50 +00:00
8080f23122
The attached patch implements a bunch of small changes to the FRV arch to
make it work again.
It deals with the following problems:
(1) SEM_DEBUG should be SEMAPHORE_DEBUG.
(2) The argument list to pcibios_penalize_isa_irq() has changed.
(3) CONFIG_HIGHMEM can't be used directly in #if as it may not be defined.
(4) page->private is no longer directly accessible.
(5) linux/hardirq.h assumes asm/hardirq.h will include linux/irq.h
(6) The IDE MMIO access functions are given pointers, not integers, and so
get type casting errors.
(7) __pa() is passed an explicit u64 type in drivers/char/mem.c, but that
can't be cast directly to a pointer on a 32-bit platform.
(8) SEMAPHORE_DEBUG should not be contingent on WAITQUEUE_DEBUG as that no
longer exists.
(9) PREEMPT_ACTIVE is too low a value.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
#ifndef _ASM_PAGE_H
|
|
#define _ASM_PAGE_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/config.h>
|
|
#include <asm/virtconvert.h>
|
|
#include <asm/mem-layout.h>
|
|
#include <asm/sections.h>
|
|
#include <asm/setup.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
|
|
#define free_user_page(page, addr) free_page(addr)
|
|
|
|
#define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE)
|
|
#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
|
|
|
|
#define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE)
|
|
#define copy_user_page(vto, vfrom, vaddr, topg) memcpy((vto), (vfrom), PAGE_SIZE)
|
|
|
|
/*
|
|
* These are used to make use of C type-checking..
|
|
*/
|
|
typedef struct { unsigned long pte; } pte_t;
|
|
typedef struct { unsigned long ste[64];} pmd_t;
|
|
typedef struct { pmd_t pue[1]; } pud_t;
|
|
typedef struct { pud_t pge[1]; } pgd_t;
|
|
typedef struct { unsigned long pgprot; } pgprot_t;
|
|
|
|
#define pte_val(x) ((x).pte)
|
|
#define pmd_val(x) ((x).ste[0])
|
|
#define pud_val(x) ((x).pue[0])
|
|
#define pgd_val(x) ((x).pge[0])
|
|
#define pgprot_val(x) ((x).pgprot)
|
|
|
|
#define __pte(x) ((pte_t) { (x) } )
|
|
#define __pmd(x) ((pmd_t) { (x) } )
|
|
#define __pud(x) ((pud_t) { (x) } )
|
|
#define __pgd(x) ((pgd_t) { (x) } )
|
|
#define __pgprot(x) ((pgprot_t) { (x) } )
|
|
#define PTE_MASK PAGE_MASK
|
|
|
|
/* to align the pointer to the (next) page boundary */
|
|
#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
|
|
|
|
#define devmem_is_allowed(pfn) 1
|
|
|
|
#define __pa(vaddr) virt_to_phys((void *) (unsigned long) (vaddr))
|
|
#define __va(paddr) phys_to_virt((unsigned long) (paddr))
|
|
|
|
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
|
|
|
|
extern unsigned long max_low_pfn;
|
|
extern unsigned long min_low_pfn;
|
|
extern unsigned long max_pfn;
|
|
|
|
#ifdef CONFIG_MMU
|
|
#define pfn_to_page(pfn) (mem_map + (pfn))
|
|
#define page_to_pfn(page) ((unsigned long) ((page) - mem_map))
|
|
#define pfn_valid(pfn) ((pfn) < max_mapnr)
|
|
|
|
#else
|
|
#define pfn_to_page(pfn) (&mem_map[(pfn) - (PAGE_OFFSET >> PAGE_SHIFT)])
|
|
#define page_to_pfn(page) ((PAGE_OFFSET >> PAGE_SHIFT) + (unsigned long) ((page) - mem_map))
|
|
#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn)
|
|
|
|
#endif
|
|
|
|
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
|
|
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
|
|
|
|
|
|
#ifdef CONFIG_MMU
|
|
#define VM_DATA_DEFAULT_FLAGS \
|
|
(VM_READ | VM_WRITE | \
|
|
((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
|
|
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#ifdef CONFIG_CONTIGUOUS_PAGE_ALLOC
|
|
#define WANT_PAGE_VIRTUAL 1
|
|
#endif
|
|
|
|
#include <asm-generic/page.h>
|
|
|
|
#endif /* _ASM_PAGE_H */
|