forked from luck/tmp_suning_uos_patched
2bd62a40f6
IA64 is the origin of the quicklist implementation. So cut out the pieces that are now in core code and modify the functions called. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
115 lines
2.4 KiB
C
115 lines
2.4 KiB
C
#ifndef _ASM_IA64_PGALLOC_H
|
|
#define _ASM_IA64_PGALLOC_H
|
|
|
|
/*
|
|
* This file contains the functions and defines necessary to allocate
|
|
* page tables.
|
|
*
|
|
* This hopefully works with any (fixed) ia-64 page-size, as defined
|
|
* in <asm/page.h> (currently 8192).
|
|
*
|
|
* Copyright (C) 1998-2001 Hewlett-Packard Co
|
|
* David Mosberger-Tang <davidm@hpl.hp.com>
|
|
* Copyright (C) 2000, Goutham Rao <goutham.rao@intel.com>
|
|
*/
|
|
|
|
|
|
#include <linux/compiler.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/page-flags.h>
|
|
#include <linux/threads.h>
|
|
#include <linux/quicklist.h>
|
|
|
|
#include <asm/mmu_context.h>
|
|
|
|
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
|
|
{
|
|
return quicklist_alloc(0, GFP_KERNEL, NULL);
|
|
}
|
|
|
|
static inline void pgd_free(pgd_t * pgd)
|
|
{
|
|
quicklist_free(0, NULL, pgd);
|
|
}
|
|
|
|
#ifdef CONFIG_PGTABLE_4
|
|
static inline void
|
|
pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
|
|
{
|
|
pgd_val(*pgd_entry) = __pa(pud);
|
|
}
|
|
|
|
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
|
|
{
|
|
return quicklist_alloc(0, GFP_KERNEL, NULL);
|
|
}
|
|
|
|
static inline void pud_free(pud_t * pud)
|
|
{
|
|
quicklist_free(0, NULL, pud);
|
|
}
|
|
#define __pud_free_tlb(tlb, pud) pud_free(pud)
|
|
#endif /* CONFIG_PGTABLE_4 */
|
|
|
|
static inline void
|
|
pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
|
|
{
|
|
pud_val(*pud_entry) = __pa(pmd);
|
|
}
|
|
|
|
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
|
|
{
|
|
return quicklist_alloc(0, GFP_KERNEL, NULL);
|
|
}
|
|
|
|
static inline void pmd_free(pmd_t * pmd)
|
|
{
|
|
quicklist_free(0, NULL, pmd);
|
|
}
|
|
|
|
#define __pmd_free_tlb(tlb, pmd) pmd_free(pmd)
|
|
|
|
static inline void
|
|
pmd_populate(struct mm_struct *mm, pmd_t * pmd_entry, struct page *pte)
|
|
{
|
|
pmd_val(*pmd_entry) = page_to_phys(pte);
|
|
}
|
|
|
|
static inline void
|
|
pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
|
|
{
|
|
pmd_val(*pmd_entry) = __pa(pte);
|
|
}
|
|
|
|
static inline struct page *pte_alloc_one(struct mm_struct *mm,
|
|
unsigned long addr)
|
|
{
|
|
void *pg = quicklist_alloc(0, GFP_KERNEL, NULL);
|
|
return pg ? virt_to_page(pg) : NULL;
|
|
}
|
|
|
|
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
|
|
unsigned long addr)
|
|
{
|
|
return quicklist_alloc(0, GFP_KERNEL, NULL);
|
|
}
|
|
|
|
static inline void pte_free(struct page *pte)
|
|
{
|
|
quicklist_free_page(0, NULL, pte);
|
|
}
|
|
|
|
static inline void pte_free_kernel(pte_t * pte)
|
|
{
|
|
quicklist_free(0, NULL, pte);
|
|
}
|
|
|
|
static inline void check_pgt_cache(void)
|
|
{
|
|
quicklist_trim(0, NULL, 25, 16);
|
|
}
|
|
|
|
#define __pte_free_tlb(tlb, pte) pte_free(pte)
|
|
|
|
#endif /* _ASM_IA64_PGALLOC_H */
|