diff options
Diffstat (limited to 'arch/s390/include/asm/pgtable.h')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 9133388edd1f..3038edb12cad 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -28,6 +28,7 @@ #include <linux/mm_types.h> #include <linux/page-flags.h> #include <linux/radix-tree.h> +#include <linux/atomic.h> #include <asm/bug.h> #include <asm/page.h> @@ -37,6 +38,24 @@ extern void vmem_map_init(void); pmd_t *vmem_pmd_alloc(void); pte_t *vmem_pte_alloc(void); +enum { + PG_DIRECT_MAP_4K = 0, + PG_DIRECT_MAP_1M, + PG_DIRECT_MAP_2G, + PG_DIRECT_MAP_MAX +}; + +extern atomic_long_t direct_pages_count[PG_DIRECT_MAP_MAX]; + +static inline void update_page_count(int level, long count) +{ + if (IS_ENABLED(CONFIG_PROC_FS)) + atomic_long_add(count, &direct_pages_count[level]); +} + +struct seq_file; +void arch_report_meminfo(struct seq_file *m); + /* * The S390 doesn't have any external MMU info: the kernel page * tables contain all the necessary information. |