[S390] kernel page table allocation.

Don't waste DMA capable pages for identity mapping page tables.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index eb6ebfe..6e6b6de 100644 (file)
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -129,7 +129,7 @@ void __init paging_init(void)
                 /*
                  * pg_table is physical at this point
                  */
                 /*
                  * pg_table is physical at this point
                  */

-               pg_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+               pg_table = (pte_t *) alloc_bootmem_pages(PAGE_SIZE);

 
                 pg_dir->pgd0 =  (_PAGE_TABLE | __pa(pg_table));
                 pg_dir->pgd1 =  (_PAGE_TABLE | (__pa(pg_table)+1024));
 
                 pg_dir->pgd0 =  (_PAGE_TABLE | __pa(pg_table));
                 pg_dir->pgd1 =  (_PAGE_TABLE | (__pa(pg_table)+1024));


@@ -219,7 +219,7 @@ void __init paging_init(void)
                         continue;
                 }          
         
                         continue;
                 }          
         

-               pm_dir = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE*4);
+               pm_dir = (pmd_t *) alloc_bootmem_pages(PAGE_SIZE * 4);

                 pgd_populate(&init_mm, pg_dir, pm_dir);
 
                 for (j = 0 ; j < PTRS_PER_PMD ; j++,pm_dir++) {
                 pgd_populate(&init_mm, pg_dir, pm_dir);
 
                 for (j = 0 ; j < PTRS_PER_PMD ; j++,pm_dir++) {


@@ -228,7 +228,7 @@ void __init paging_init(void)
                                 continue; 
                         }          
                         
                                 continue; 
                         }          
                         

-                        pt_dir = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+                       pt_dir = (pte_t *) alloc_bootmem_pages(PAGE_SIZE);

                         pmd_populate_kernel(&init_mm, pm_dir, pt_dir);
        
                         for (k = 0 ; k < PTRS_PER_PTE ; k++,pt_dir++) {
                         pmd_populate_kernel(&init_mm, pm_dir, pt_dir);
        
                         for (k = 0 ; k < PTRS_PER_PTE ; k++,pt_dir++) {