sparc64: Use function pointer for cross-call sending.

[linux-2.6-omap-h63xx.git] / include / asm-avr32 / pgalloc.h

diff --git a/include/asm-avr32/pgalloc.h b/include/asm-avr32/pgalloc.h
index 51fc1f6e4b17afb9d73b7065ad6bea459549d205..64082132394312a4c861abdc6b110f58517a7a40 100644 (file)
--- a/include/asm-avr32/pgalloc.h
+++ b/include/asm-avr32/pgalloc.h
@@ -8,65 +8,79 @@
 #ifndef __ASM_AVR32_PGALLOC_H
 #define __ASM_AVR32_PGALLOC_H
 
-#include <asm/processor.h>
-#include <linux/threads.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
+#include <linux/quicklist.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
 
-#define pmd_populate_kernel(mm, pmd, pte) \
-       set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte)))
+#define QUICK_PGD      0       /* Preserve kernel mappings over free */
+#define QUICK_PT       1       /* Zero on free */
 
-static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
+static inline void pmd_populate_kernel(struct mm_struct *mm,
+                                      pmd_t *pmd, pte_t *pte)
+{
+       set_pmd(pmd, __pmd((unsigned long)pte));
+}
+
+static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
                                    pgtable_t pte)
 {
-       set_pmd(pmd, __pmd(_PAGE_TABLE + page_to_phys(pte)));
+       set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
 }
 #define pmd_pgtable(pmd) pmd_page(pmd)
 
+static inline void pgd_ctor(void *x)
+{
+       pgd_t *pgd = x;
+
+       memcpy(pgd + USER_PTRS_PER_PGD,
+               swapper_pg_dir + USER_PTRS_PER_PGD,
+               (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
+}
+
 /*
  * Allocate and free page tables
  */
-static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm)
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-       return kcalloc(USER_PTRS_PER_PGD, sizeof(pgd_t), GFP_KERNEL);
+       return quicklist_alloc(QUICK_PGD, GFP_KERNEL | __GFP_REPEAT, pgd_ctor);
 }
 
 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 {
-       kfree(pgd);
+       quicklist_free(QUICK_PGD, NULL, pgd);
 }
 
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                                          unsigned long address)
 {
-       pte_t *pte;
-
-       pte = (pte_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT);
-
-       return pte;
+       return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
                                         unsigned long address)
 {
-       struct page *pte;
+       struct page *page;
+       void *pg;
 
-       pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
-       if (!pte)
+       pg = quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
+       if (!pg)
                return NULL;
-       pgtable_page_ctor(pte);
-       return pte;
+
+       page = virt_to_page(pg);
+       pgtable_page_ctor(page);
+
+       return page;
 }
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
-       free_page((unsigned long)pte);
+       quicklist_free(QUICK_PT, NULL, pte);
 }
 
 static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
 {
        pgtable_page_dtor(pte);
-       __free_page(pte);
+       quicklist_free_page(QUICK_PT, NULL, pte);
 }
 
 #define __pte_free_tlb(tlb,pte)                                \
@@ -75,6 +89,10 @@ do {                                                 \
        tlb_remove_page((tlb), pte);                    \
 } while (0)
 
-#define check_pgt_cache() do { } while(0)
+static inline void check_pgt_cache(void)
+{
+       quicklist_trim(QUICK_PGD, NULL, 25, 16);
+       quicklist_trim(QUICK_PT, NULL, 25, 16);
+}
 
 #endif /* __ASM_AVR32_PGALLOC_H */