Release 4.14 arch/mips/mm/pgtable-64.c

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1999, 2000 by Silicon Graphics
 * Copyright (C) 2003 by Ralf Baechle
 */
#include <linux/export.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <asm/fixmap.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>



void pgd_init(unsigned long page)
{
	unsigned long *p, *end;
	unsigned long entry;

#if !defined(__PAGETABLE_PUD_FOLDED)
	entry = (unsigned long)invalid_pud_table;
#elif !defined(__PAGETABLE_PMD_FOLDED)
	entry = (unsigned long)invalid_pmd_table;
#else
	entry = (unsigned long)invalid_pte_table;
#endif

	p = (unsigned long *) page;
	end = p + PTRS_PER_PGD;

	do {
		p[0] = entry;
		p[1] = entry;
		p[2] = entry;
		p[3] = entry;
		p[4] = entry;
		p += 8;
		p[-3] = entry;
		p[-2] = entry;
		p[-1] = entry;
	} while (p != end);
}

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49
32.45%
2
50.00%
Alex Belits
23
15.23%
1
25.00%
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151
100.00%
4
100.00%

#ifndef __PAGETABLE_PMD_FOLDED


void pmd_init(unsigned long addr, unsigned long pagetable)
{
	unsigned long *p, *end;

	p = (unsigned long *) addr;
	end = p + PTRS_PER_PMD;

	do {
		p[0] = pagetable;
		p[1] = pagetable;
		p[2] = pagetable;
		p[3] = pagetable;
		p[4] = pagetable;
		p += 8;
		p[-3] = pagetable;
		p[-2] = pagetable;
		p[-1] = pagetable;
	} while (p != end);
}
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David Daney
18
16.51%
1
50.00%
Total
109
100.00%
2
100.00%


EXPORT_SYMBOL_GPL(pmd_init);
#endif

#ifndef __PAGETABLE_PUD_FOLDED


void pud_init(unsigned long addr, unsigned long pagetable)
{
	unsigned long *p, *end;

	p = (unsigned long *)addr;
	end = p + PTRS_PER_PUD;

	do {
		p[0] = pagetable;
		p[1] = pagetable;
		p[2] = pagetable;
		p[3] = pagetable;
		p[4] = pagetable;
		p += 8;
		p[-3] = pagetable;
		p[-2] = pagetable;
		p[-1] = pagetable;
	} while (p != end);
}
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#endif



pmd_t mk_pmd(struct page *page, pgprot_t prot)
{
	pmd_t pmd;

	pmd_val(pmd) = (page_to_pfn(page) << _PFN_SHIFT) | pgprot_val(prot);

	return pmd;
}

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void set_pmd_at(struct mm_struct *mm, unsigned long addr,
		pmd_t *pmdp, pmd_t pmd)
{
	*pmdp = pmd;
	flush_tlb_all();
}

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void __init pagetable_init(void)
{
	unsigned long vaddr;
	pgd_t *pgd_base;

	/* Initialize the entire pgd.  */
	pgd_init((unsigned long)swapper_pg_dir);
#ifndef __PAGETABLE_PUD_FOLDED
	pud_init((unsigned long)invalid_pud_table, (unsigned long)invalid_pmd_table);
#endif
#ifndef __PAGETABLE_PMD_FOLDED
	pmd_init((unsigned long)invalid_pmd_table, (unsigned long)invalid_pte_table);
#endif
	pgd_base = swapper_pg_dir;
	/*
         * Fixed mappings:
         */
	vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
	fixrange_init(vaddr, vaddr + FIXADDR_SIZE, pgd_base);
}
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40.00%
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21.51%
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David Daney
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5.38%
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Kevin Cernekee
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318
56.18%
3
33.33%
Alex Belits
157
27.74%
1
11.11%
David Daney
77
13.60%
2
22.22%
James Hogan
8
1.41%
1
11.11%
Kevin Cernekee
3
0.53%
1
11.11%
Atsushi Nemoto
3
0.53%
1
11.11%
Total
566
100.00%
9
100.00%
Directory: arch/mips/mm

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