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authorPaul Mundt <lethal@linux-sh.org>2007-05-14 09:55:35 +0900
committerPaul Mundt <lethal@linux-sh.org>2007-05-14 09:55:35 +0900
commit6c645ac72582bacb85b90a1cf88e81a13045aba4 (patch)
treea6101de4bd5426ebfb06b097749251ff6f9e98b2 /include
parente827f20f1d34e91fbbb0df4674ddd8c3aad517da (diff)
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sh64: generic quicklist support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-sh64/pgalloc.h100
1 files changed, 23 insertions, 77 deletions
diff --git a/include/asm-sh64/pgalloc.h b/include/asm-sh64/pgalloc.h
index cb803e5..6eccab7 100644
--- a/include/asm-sh64/pgalloc.h
+++ b/include/asm-sh64/pgalloc.h
@@ -14,13 +14,9 @@
*
*/
-#include <linux/threads.h>
#include <linux/mm.h>
-
-#define pgd_quicklist (current_cpu_data.pgd_quick)
-#define pmd_quicklist (current_cpu_data.pmd_quick)
-#define pte_quicklist (current_cpu_data.pte_quick)
-#define pgtable_cache_size (current_cpu_data.pgtable_cache_sz)
+#include <linux/quicklist.h>
+#include <asm/page.h>
static inline void pgd_init(unsigned long page)
{
@@ -45,84 +41,37 @@ static inline pgd_t *get_pgd_slow(void)
return ret;
}
-static inline pgd_t *get_pgd_fast(void)
-{
- unsigned long *ret;
-
- if ((ret = pgd_quicklist) != NULL) {
- pgd_quicklist = (unsigned long *)(*ret);
- ret[0] = 0;
- pgtable_cache_size--;
- } else
- ret = (unsigned long *)get_pgd_slow();
-
- if (ret) {
- memset(ret, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
- }
- return (pgd_t *)ret;
-}
-
-static inline void free_pgd_fast(pgd_t *pgd)
-{
- *(unsigned long *)pgd = (unsigned long) pgd_quicklist;
- pgd_quicklist = (unsigned long *) pgd;
- pgtable_cache_size++;
-}
-
-static inline void free_pgd_slow(pgd_t *pgd)
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
- kfree((void *)pgd);
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
-extern pte_t *get_pte_slow(pmd_t *pmd, unsigned long address_preadjusted);
-extern pte_t *get_pte_kernel_slow(pmd_t *pmd, unsigned long address_preadjusted);
-
-static inline pte_t *get_pte_fast(void)
+static inline void pgd_free(pgd_t *pgd)
{
- unsigned long *ret;
-
- if((ret = (unsigned long *)pte_quicklist) != NULL) {
- pte_quicklist = (unsigned long *)(*ret);
- ret[0] = ret[1];
- pgtable_cache_size--;
- }
- return (pte_t *)ret;
+ quicklist_free(0, NULL, pgd);
}
-static inline void free_pte_fast(pte_t *pte)
+static inline struct page *pte_alloc_one(struct mm_struct *mm,
+ unsigned long address)
{
- *(unsigned long *)pte = (unsigned long) pte_quicklist;
- pte_quicklist = (unsigned long *) pte;
- pgtable_cache_size++;
+ void *pg = quicklist_alloc(0, GFP_KERNEL, NULL);
+ return pg ? virt_to_page(pg) : NULL;
}
static inline void pte_free_kernel(pte_t *pte)
{
- free_page((unsigned long)pte);
+ quicklist_free(0, NULL, pte);
}
static inline void pte_free(struct page *pte)
{
- __free_page(pte);
+ quicklist_free_page(0, NULL, pte);
}
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
- pte_t *pte;
-
- pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT|__GFP_ZERO);
-
- return pte;
-}
-
-static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
-{
- struct page *pte;
-
- pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
-
- return pte;
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
@@ -142,31 +91,23 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long add
#elif defined(CONFIG_SH64_PGTABLE_3_LEVEL)
-static __inline__ pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{
- pmd_t *pmd;
- pmd = (pmd_t *) __get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
- return pmd;
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
-static __inline__ void pmd_free(pmd_t *pmd)
+static inline void pmd_free(pmd_t *pmd)
{
- free_page((unsigned long) pmd);
+ quicklist_free(0, NULL, pmd);
}
-#define pgd_populate(mm, pgd, pmd) pgd_set(pgd, pmd)
+#define pgd_populate(mm, pgd, pmd) pgd_set(pgd, pmd)
#define __pmd_free_tlb(tlb,pmd) pmd_free(pmd)
#else
#error "No defined page table size"
#endif
-#define check_pgt_cache() do { } while (0)
-#define pgd_free(pgd) free_pgd_slow(pgd)
-#define pgd_alloc(mm) get_pgd_fast()
-
-extern int do_check_pgt_cache(int, int);
-
#define pmd_populate_kernel(mm, pmd, pte) \
set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) (pte)))
@@ -176,4 +117,9 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) page_address (pte)));
}
+static inline void check_pgt_cache(void)
+{
+ quicklist_trim(0, NULL, 25, 16);
+}
+
#endif /* __ASM_SH64_PGALLOC_H */