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authorHeiko Carstens <heiko.carstens@de.ibm.com>2006-10-04 20:02:23 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2006-10-04 20:02:23 +0200
commit0b2b6e1ddce4696cb7afcbb15a654fe95428a498 (patch)
treea6dd837de5ce7088ab1009d125e8bcd6cfeaa1e1 /include/asm-s390
parent7676bef9c183fd573822cac9992927ef596d584c (diff)
downloadop-kernel-dev-0b2b6e1ddce4696cb7afcbb15a654fe95428a498.zip
op-kernel-dev-0b2b6e1ddce4696cb7afcbb15a654fe95428a498.tar.gz
[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 <heiko.carstens@de.ibm.com>
Diffstat (limited to 'include/asm-s390')
-rw-r--r--include/asm-s390/io.h5
-rw-r--r--include/asm-s390/page.h1
-rw-r--r--include/asm-s390/pgalloc.h2
-rw-r--r--include/asm-s390/pgtable.h18
4 files changed, 11 insertions, 15 deletions
diff --git a/include/asm-s390/io.h b/include/asm-s390/io.h
index 63c78b9..efb7de9 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 796c400..363ea76 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 803bc70..28619de 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 ecdff13..519f0a5 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))
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