[linux-2.6-block.git] / include / asm-sparc64 / pgalloc.h

/* $Id: pgalloc.h,v 1.30 2001/12/21 04:56:17 davem Exp $ */
#ifndef _SPARC64_PGALLOC_H
#define _SPARC64_PGALLOC_H

#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/quicklist.h>

#include <asm/spitfire.h>
#include <asm/cpudata.h>
#include <asm/cacheflush.h>
#include <asm/page.h>

/* Page table allocation/freeing. */

static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
	return quicklist_alloc(0, GFP_KERNEL, NULL);
}

static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
	quicklist_free(0, NULL, pgd);
}

#define pud_populate(MM, PUD, PMD)	pud_set(PUD, 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(struct mm_struct *mm, pmd_t *pmd)
{
	quicklist_free(0, NULL, pmd);
}

static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
					  unsigned long address)
{
	return quicklist_alloc(0, GFP_KERNEL, NULL);
}

static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
					unsigned long address)
{
	struct page *page;
	void *pg;

	pg = quicklist_alloc(0, GFP_KERNEL, NULL);
	if (!pg)
		return NULL;
	page = virt_to_page(pg);
	pgtable_page_ctor(page);
	return page;
}
		
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
	quicklist_free(0, NULL, pte);
}

static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
{
	pgtable_page_dtor(ptepage);
	quicklist_free_page(0, NULL, ptepage);
}


#define pmd_populate_kernel(MM, PMD, PTE)	pmd_set(PMD, PTE)
#define pmd_populate(MM,PMD,PTE_PAGE)		\
	pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE))
#define pmd_pgtable(pmd) pmd_page(pmd)

static inline void check_pgt_cache(void)
{
	quicklist_trim(0, NULL, 25, 16);
}

#endif /* _SPARC64_PGALLOC_H */
Commit	Line	Data
1da177e4 LT	1	/* $Id: pgalloc.h,v 1.30 2001/12/21 04:56:17 davem Exp $ */
	2	#ifndef _SPARC64_PGALLOC_H
	3	#define _SPARC64_PGALLOC_H
	4
1da177e4 LT	5	#include <linux/kernel.h>
	6	#include <linux/sched.h>
	7	#include <linux/mm.h>
3c936465	8	#include <linux/slab.h>
3a2cba99	9	#include <linux/quicklist.h>
1da177e4 LT	10
	11	#include <asm/spitfire.h>
	12	#include <asm/cpudata.h>
	13	#include <asm/cacheflush.h>
6a9b490d	14	#include <asm/page.h>
1da177e4 LT	15
1da177e4 LT	16	/* Page table allocation/freeing. */
1da177e4	17
3c936465	18	static inline pgd_t pgd_alloc(struct mm_struct mm)
1da177e4	19	{
3a2cba99	20	return quicklist_alloc(0, GFP_KERNEL, NULL);
1da177e4 LT	21	}
1da177e4 LT	22
5e541973	23	static inline void pgd_free(struct mm_struct mm, pgd_t pgd)
1da177e4	24	{
3a2cba99	25	quicklist_free(0, NULL, pgd);
1da177e4 LT	26	}
1da177e4 LT	27
1da177e4 LT	28	#define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD)
1da177e4 LT	29
3c936465	30	static inline pmd_t pmd_alloc_one(struct mm_struct mm, unsigned long addr)
1da177e4	31	{
3a2cba99	32	return quicklist_alloc(0, GFP_KERNEL, NULL);
05e28f9d DM	33	}
05e28f9d DM	34
5e541973	35	static inline void pmd_free(struct mm_struct mm, pmd_t pmd)
05e28f9d	36	{
3a2cba99	37	quicklist_free(0, NULL, pmd);
1da177e4 LT	38	}
1da177e4 LT	39
3c936465 DM	40	static inline pte_t pte_alloc_one_kernel(struct mm_struct mm,
3c936465 DM	41	unsigned long address)
1da177e4	42	{
3a2cba99	43	return quicklist_alloc(0, GFP_KERNEL, NULL);
05e28f9d DM	44	}
05e28f9d DM	45
2f569afd MS	46	static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
2f569afd MS	47	unsigned long address)
05e28f9d	48	{
2f569afd MS	49	struct page *page;
	50	void *pg;
	51
	52	pg = quicklist_alloc(0, GFP_KERNEL, NULL);
	53	if (!pg)
	54	return NULL;
	55	page = virt_to_page(pg);
	56	pgtable_page_ctor(page);
	57	return page;
1da177e4	58	}
3c936465	59
5e541973	60	static inline void pte_free_kernel(struct mm_struct mm, pte_t pte)
1da177e4	61	{
3a2cba99	62	quicklist_free(0, NULL, pte);
1da177e4 LT	63	}
1da177e4 LT	64
2f569afd	65	static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
1da177e4	66	{
2f569afd	67	pgtable_page_dtor(ptepage);
3a2cba99	68	quicklist_free_page(0, NULL, ptepage);
1da177e4 LT	69	}
1da177e4 LT	70
3c936465 DM	71
	72	#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
	73	#define pmd_populate(MM,PMD,PTE_PAGE) \
	74	pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE))
2f569afd	75	#define pmd_pgtable(pmd) pmd_page(pmd)
3c936465	76
3a2cba99 DM	77	static inline void check_pgt_cache(void)
	78	{
	79	quicklist_trim(0, NULL, 25, 16);
	80	}
1da177e4 LT	81
1da177e4 LT	82	#endif /* _SPARC64_PGALLOC_H */