82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/*
|
|
* Port on Texas Instruments TMS320C6x architecture
|
|
*
|
|
* Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
|
|
* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
#ifndef _ASM_C6X_PGTABLE_H
|
|
#define _ASM_C6X_PGTABLE_H
|
|
|
|
#include <asm-generic/4level-fixup.h>
|
|
|
|
#include <asm/setup.h>
|
|
#include <asm/page.h>
|
|
|
|
/*
|
|
* All 32bit addresses are effectively valid for vmalloc...
|
|
* Sort of meaningless for non-VM targets.
|
|
*/
|
|
#define VMALLOC_START 0
|
|
#define VMALLOC_END 0xffffffff
|
|
|
|
#define pgd_present(pgd) (1)
|
|
#define pgd_none(pgd) (0)
|
|
#define pgd_bad(pgd) (0)
|
|
#define pgd_clear(pgdp)
|
|
#define kern_addr_valid(addr) (1)
|
|
|
|
#define pmd_offset(a, b) ((void *)0)
|
|
#define pmd_none(x) (!pmd_val(x))
|
|
#define pmd_present(x) (pmd_val(x))
|
|
#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0)
|
|
#define pmd_bad(x) (pmd_val(x) & ~PAGE_MASK)
|
|
|
|
#define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */
|
|
#define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */
|
|
#define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */
|
|
#define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */
|
|
#define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */
|
|
#define pgprot_noncached(prot) (prot)
|
|
|
|
extern void paging_init(void);
|
|
|
|
#define __swp_type(x) (0)
|
|
#define __swp_offset(x) (0)
|
|
#define __swp_entry(typ, off) ((swp_entry_t) { ((typ) | ((off) << 7)) })
|
|
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
|
|
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
|
|
|
|
static inline int pte_file(pte_t pte)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
|
|
#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
|
|
|
|
/*
|
|
* ZERO_PAGE is a global shared page that is always zero: used
|
|
* for zero-mapped memory areas etc..
|
|
*/
|
|
#define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page)
|
|
extern unsigned long empty_zero_page;
|
|
|
|
#define swapper_pg_dir ((pgd_t *) 0)
|
|
|
|
/*
|
|
* No page table caches to initialise
|
|
*/
|
|
#define pgtable_cache_init() do { } while (0)
|
|
#define io_remap_pfn_range remap_pfn_range
|
|
|
|
#define io_remap_page_range(vma, vaddr, paddr, size, prot) \
|
|
remap_pfn_range(vma, vaddr, (paddr) >> PAGE_SHIFT, size, prot)
|
|
|
|
#include <asm-generic/pgtable.h>
|
|
|
|
#endif /* _ASM_C6X_PGTABLE_H */
|