Commit a8874e7e authored by Martin Schwidefsky's avatar Martin Schwidefsky

mm: make the __PAGETABLE_PxD_FOLDED defines non-empty

Change the currently empty defines for __PAGETABLE_PMD_FOLDED,
__PAGETABLE_PUD_FOLDED and __PAGETABLE_P4D_FOLDED to return 1.
This makes it possible to use __is_defined() to test if the
preprocessor define exists.
Acked-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 5a2e1853
......@@ -10,7 +10,7 @@
#ifndef _ASM_PGTABLE_2LEVEL_H
#define _ASM_PGTABLE_2LEVEL_H
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
/*
* Hardware-wise, we have a two level page table structure, where the first
......
......@@ -55,12 +55,12 @@
*/
#ifdef CONFIG_SUN3
#define PTRS_PER_PTE 16
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#define PTRS_PER_PMD 1
#define PTRS_PER_PGD 2048
#elif defined(CONFIG_COLDFIRE)
#define PTRS_PER_PTE 512
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#define PTRS_PER_PMD 1
#define PTRS_PER_PGD 1024
#else
......
......@@ -63,7 +63,7 @@ extern int mem_init_done;
#include <asm-generic/4level-fixup.h>
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
......
......@@ -4,7 +4,7 @@
#ifndef _ASMNDS32_PGTABLE_H
#define _ASMNDS32_PGTABLE_H
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#include <asm-generic/4level-fixup.h>
#include <asm-generic/sizes.h>
......
......@@ -111,7 +111,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
#if CONFIG_PGTABLE_LEVELS == 3
#define BITS_PER_PMD (PAGE_SHIFT + PMD_ORDER - BITS_PER_PMD_ENTRY)
#else
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#define BITS_PER_PMD 0
#endif
#define PTRS_PER_PMD (1UL << BITS_PER_PMD)
......
......@@ -3,7 +3,7 @@
#define _4LEVEL_FIXUP_H
#define __ARCH_HAS_4LEVEL_HACK
#define __PAGETABLE_PUD_FOLDED
#define __PAGETABLE_PUD_FOLDED 1
#define PUD_SHIFT PGDIR_SHIFT
#define PUD_SIZE PGDIR_SIZE
......
......@@ -3,7 +3,7 @@
#define _5LEVEL_FIXUP_H
#define __ARCH_HAS_5LEVEL_HACK
#define __PAGETABLE_P4D_FOLDED
#define __PAGETABLE_P4D_FOLDED 1
#define P4D_SHIFT PGDIR_SHIFT
#define P4D_SIZE PGDIR_SIZE
......
......@@ -5,7 +5,7 @@
#ifndef __ASSEMBLY__
#include <asm-generic/5level-fixup.h>
#define __PAGETABLE_PUD_FOLDED
#define __PAGETABLE_PUD_FOLDED 1
/*
* Having the pud type consist of a pgd gets the size right, and allows
......
......@@ -4,7 +4,7 @@
#ifndef __ASSEMBLY__
#define __PAGETABLE_P4D_FOLDED
#define __PAGETABLE_P4D_FOLDED 1
typedef struct { pgd_t pgd; } p4d_t;
......
......@@ -8,7 +8,7 @@
struct mm_struct;
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
/*
* Having the pmd type consist of a pud gets the size right, and allows
......
......@@ -9,7 +9,7 @@
#else
#include <asm-generic/pgtable-nop4d.h>
#define __PAGETABLE_PUD_FOLDED
#define __PAGETABLE_PUD_FOLDED 1
/*
* Having the pud type consist of a p4d gets the size right, and allows
......
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