From 0b2b6e1ddce4696cb7afcbb15a654fe95428a498 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 4 Oct 2006 20:02:23 +0200 Subject: [S390] Remove open-coded mem_map usage. Use page_to_phys and pfn_to_page to avoid open-coded mem_map usage. Signed-off-by: Heiko Carstens --- include/asm-s390/io.h | 5 ----- include/asm-s390/page.h | 1 + include/asm-s390/pgalloc.h | 2 +- include/asm-s390/pgtable.h | 18 +++++++++--------- 4 files changed, 11 insertions(+), 15 deletions(-) (limited to 'include/asm-s390') diff --git a/include/asm-s390/io.h b/include/asm-s390/io.h index 63c78b9399c..efb7de9c1c6 100644 --- a/include/asm-s390/io.h +++ b/include/asm-s390/io.h @@ -45,11 +45,6 @@ static inline void * phys_to_virt(unsigned long address) return __io_virt(address); } -/* - * Change "struct page" to physical address. - */ -#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT) - extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags); static inline void * ioremap (unsigned long offset, unsigned long size) diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h index 796c400f2b7..363ea761d5e 100644 --- a/include/asm-s390/page.h +++ b/include/asm-s390/page.h @@ -137,6 +137,7 @@ page_get_storage_key(unsigned long addr) #define __pa(x) (unsigned long)(x) #define __va(x) (void *)(unsigned long)(x) #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) +#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) #define pfn_valid(pfn) ((pfn) < max_mapnr) #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) diff --git a/include/asm-s390/pgalloc.h b/include/asm-s390/pgalloc.h index 803bc706441..28619de5eca 100644 --- a/include/asm-s390/pgalloc.h +++ b/include/asm-s390/pgalloc.h @@ -116,7 +116,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page) { - pmd_populate_kernel(mm, pmd, (pte_t *)((page-mem_map) << PAGE_SHIFT)); + pmd_populate_kernel(mm, pmd, (pte_t *)page_to_phys(page)); } /* diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index ecdff13b250..519f0a5ff18 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -599,7 +599,7 @@ ptep_establish(struct vm_area_struct *vma, */ static inline int page_test_and_clear_dirty(struct page *page) { - unsigned long physpage = __pa((page - mem_map) << PAGE_SHIFT); + unsigned long physpage = page_to_phys(page); int skey = page_get_storage_key(physpage); if (skey & _PAGE_CHANGED) @@ -612,13 +612,13 @@ static inline int page_test_and_clear_dirty(struct page *page) */ static inline int page_test_and_clear_young(struct page *page) { - unsigned long physpage = __pa((page - mem_map) << PAGE_SHIFT); + unsigned long physpage = page_to_phys(page); int ccode; - asm volatile ( - "rrbe 0,%1\n" - "ipm %0\n" - "srl %0,28\n" + asm volatile( + " rrbe 0,%1\n" + " ipm %0\n" + " srl %0,28\n" : "=d" (ccode) : "a" (physpage) : "cc" ); return ccode & 2; } @@ -636,7 +636,7 @@ static inline pte_t mk_pte_phys(unsigned long physpage, pgprot_t pgprot) static inline pte_t mk_pte(struct page *page, pgprot_t pgprot) { - unsigned long physpage = __pa((page - mem_map) << PAGE_SHIFT); + unsigned long physpage = page_to_phys(page); return mk_pte_phys(physpage, pgprot); } @@ -664,11 +664,11 @@ static inline pmd_t pfn_pmd(unsigned long pfn, pgprot_t pgprot) #define pmd_page_vaddr(pmd) (pmd_val(pmd) & PAGE_MASK) -#define pmd_page(pmd) (mem_map+(pmd_val(pmd) >> PAGE_SHIFT)) +#define pmd_page(pmd) pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT) #define pgd_page_vaddr(pgd) (pgd_val(pgd) & PAGE_MASK) -#define pgd_page(pgd) (mem_map+(pgd_val(pgd) >> PAGE_SHIFT)) +#define pgd_page(pgd) pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT) /* to find an entry in a page-table-directory */ #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) -- cgit v1.2.3