s390/headers: replace __s390x__ with CONFIG_64BIT where possible

Replace __s390x__ with CONFIG_64BIT in all places that are not exported
to userspace or guarded with #ifdef __KERNEL__.

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

18 files changed, 119 insertions, 119 deletions

diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 8a503b1acd63..a6ff5a83e227 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -61,7 +61,7 @@ extern const char _ni_bitmap[];
 extern const char _zb_findmap[];
 extern const char _sb_findmap[];
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 
 #define __BITOPS_ALIGN          3
 #define __BITOPS_WORDSIZE       32
@@ -81,7 +81,7 @@ extern const char _sb_findmap[];
                 : "d" (__val), "Q" (*(unsigned long *) __addr)  \
                 : "cc");
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 #define __BITOPS_ALIGN          7
 #define __BITOPS_WORDSIZE       64
@@ -101,7 +101,7 @@ extern const char _sb_findmap[];
                 : "d" (__val), "Q" (*(unsigned long *) __addr)  \
                 : "cc");
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define __BITOPS_WORDS(bits) (((bits)+__BITOPS_WORDSIZE-1)/__BITOPS_WORDSIZE)
 #define __BITOPS_BARRIER() asm volatile("" : : : "memory")
@@ -410,7 +410,7 @@ static inline unsigned long __ffz_word_loop(const unsigned long *addr,
         unsigned long bytes = 0;
 
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       ahi     %1,-1\n"
                 "       sra     %1,5\n"
                 "       jz      1f\n"
@@ -447,7 +447,7 @@ static inline unsigned long __ffs_word_loop(const unsigned long *addr,
         unsigned long bytes = 0;
 
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       ahi     %1,-1\n"
                 "       sra     %1,5\n"
                 "       jz      1f\n"
@@ -479,7 +479,7 @@ static inline unsigned long __ffs_word_loop(const unsigned long *addr,
  */
 static inline unsigned long __ffz_word(unsigned long nr, unsigned long word)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         if ((word & 0xffffffff) == 0xffffffff) {
                 word >>= 32;
                 nr += 32;
@@ -503,7 +503,7 @@ static inline unsigned long __ffz_word(unsigned long nr, unsigned long word)
  */
 static inline unsigned long __ffs_word(unsigned long nr, unsigned long word)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         if ((word & 0xffffffff) == 0) {
                 word >>= 32;
                 nr += 32;
@@ -544,7 +544,7 @@ static inline unsigned long __load_ulong_le(const unsigned long *p,
         unsigned long word;
 
         p = (unsigned long *)((unsigned long) p + offset);
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
         asm volatile(
                 "       ic      %0,%O1(%R1)\n"
                 "       icm     %0,2,%O1+1(%R1)\n"
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h
index 24ef186a1c4f..718374de9c7f 100644
--- a/arch/s390/include/asm/cputime.h
+++ b/arch/s390/include/asm/cputime.h
@@ -21,15 +21,15 @@ typedef unsigned long long __nocast cputime64_t;
 
 static inline unsigned long __div(unsigned long long n, unsigned long base)
 {
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
         register_pair rp;
 
         rp.pair = n >> 1;
         asm ("dr %0,%1" : "+d" (rp) : "d" (base >> 1));
         return rp.subreg.odd;
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
         return n / base;
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 }
 
 #define cputime_one_jiffy               jiffies_to_cputime(1)
@@ -100,7 +100,7 @@ static inline void cputime_to_timespec(const cputime_t cputime,
                                        struct timespec *value)
 {
         unsigned long long __cputime = (__force unsigned long long) cputime;
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
         register_pair rp;
 
         rp.pair = __cputime >> 1;
@@ -128,7 +128,7 @@ static inline void cputime_to_timeval(const cputime_t cputime,
                                       struct timeval *value)
 {
         unsigned long long __cputime = (__force unsigned long long) cputime;
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
         register_pair rp;
 
         rp.pair = __cputime >> 1;
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index ecde9417d669..debfda33d1f8 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -7,7 +7,7 @@
 #ifndef __ASM_CTL_REG_H
 #define __ASM_CTL_REG_H
 
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
 
 #define __ctl_load(array, low, high) ({                         \
         typedef struct { char _[sizeof(array)]; } addrtype;     \
@@ -25,7 +25,7 @@
                 : "i" (low), "i" (high));                       \
         })
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 #define __ctl_load(array, low, high) ({                         \
         typedef struct { char _[sizeof(array)]; } addrtype;     \
@@ -43,7 +43,7 @@
                 : "i" (low), "i" (high));                       \
         })
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define __ctl_set_bit(cr, bit) ({       \
         unsigned long __dummy;          \
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index c4ee39f7a4d6..06151e6a3098 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -107,11 +107,11 @@
 /*
  * These are used to set parameters in the core dumps.
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define ELF_CLASS       ELFCLASS32
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #define ELF_CLASS       ELFCLASS64
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 #define ELF_DATA        ELFDATA2MSB
 #define ELF_ARCH        EM_S390
 
@@ -181,9 +181,9 @@ extern unsigned long elf_hwcap;
 extern char elf_platform[];
 #define ELF_PLATFORM (elf_platform)
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define SET_PERSONALITY(ex) set_personality(PER_LINUX)
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #define SET_PERSONALITY(ex)                                     \
 do {                                                            \
         if (personality(current->personality) != PER_LINUX32)   \
@@ -194,7 +194,7 @@ do {								\
         else                                                    \
                 clear_thread_flag(TIF_31BIT);                   \
 } while (0)
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define STACK_RND_MASK  0x7ffUL
 
diff --git a/arch/s390/include/asm/idals.h b/arch/s390/include/asm/idals.h
index aae276d00383..aef0dde340d1 100644
--- a/arch/s390/include/asm/idals.h
+++ b/arch/s390/include/asm/idals.h
@@ -20,7 +20,7 @@
 #include <asm/cio.h>
 #include <asm/uaccess.h>
 
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
 #define IDA_SIZE_LOG 12 /* 11 for 2k , 12 for 4k */
 #else
 #define IDA_SIZE_LOG 11 /* 11 for 2k , 12 for 4k */
@@ -33,7 +33,7 @@
 static inline int
 idal_is_needed(void *vaddr, unsigned int length)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         return ((__pa(vaddr) + length - 1) >> 31) != 0;
 #else
         return 0;
@@ -78,7 +78,7 @@ static inline unsigned long *idal_create_words(unsigned long *idaws,
 static inline int
 set_normalized_cda(struct ccw1 * ccw, void *vaddr)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         unsigned int nridaws;
         unsigned long *idal;
 
@@ -105,7 +105,7 @@ set_normalized_cda(struct ccw1 * ccw, void *vaddr)
 static inline void
 clear_normalized_cda(struct ccw1 * ccw)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         if (ccw->flags & CCW_FLAG_IDA) {
                 kfree((void *)(unsigned long) ccw->cda);
                 ccw->flags &= ~CCW_FLAG_IDA;
@@ -182,7 +182,7 @@ idal_buffer_free(struct idal_buffer *ib)
 static inline int
 __idal_buffer_is_needed(struct idal_buffer *ib)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         return ib->size > (4096ul << ib->page_order) ||
                 idal_is_needed(ib->data[0], ib->size);
 #else
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index 5d09e405c54d..69bdf72e95ec 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -49,7 +49,7 @@ static inline int init_new_context(struct task_struct *tsk,
 
 #define destroy_context(mm)             do { } while (0)
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define LCTL_OPCODE "lctl"
 #else
 #define LCTL_OPCODE "lctlg"
diff --git a/arch/s390/include/asm/module.h b/arch/s390/include/asm/module.h
index 1cc1c5af705a..f0b6b26b6e59 100644
--- a/arch/s390/include/asm/module.h
+++ b/arch/s390/include/asm/module.h
@@ -28,7 +28,7 @@ struct mod_arch_specific
         struct mod_arch_syminfo *syminfo;
 };
 
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
 #define ElfW(x) Elf64_ ## x
 #define ELFW(x) ELF64_ ## x
 #else
diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
index 0fbd1899c7b0..6537e72e0853 100644
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
@@ -15,7 +15,7 @@
  * per cpu area, use weak definitions to force the compiler to
  * generate external references.
  */
-#if defined(CONFIG_SMP) && defined(__s390x__) && defined(MODULE)
+#if defined(CONFIG_SMP) && defined(CONFIG_64BIT) && defined(MODULE)
 #define ARCH_NEEDS_WEAK_PER_CPU
 #endif
 
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index 78e3041919de..43078c194394 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -48,7 +48,7 @@ static inline void crst_table_init(unsigned long *crst, unsigned long entry)
         clear_table(crst, entry, sizeof(unsigned long)*2048);
 }
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 
 static inline unsigned long pgd_entry_type(struct mm_struct *mm)
 {
@@ -64,7 +64,7 @@ static inline unsigned long pgd_entry_type(struct mm_struct *mm)
 #define pgd_populate(mm, pgd, pud)              BUG()
 #define pud_populate(mm, pud, pmd)              BUG()
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 static inline unsigned long pgd_entry_type(struct mm_struct *mm)
 {
@@ -106,7 +106,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
         pud_val(*pud) = _REGION3_ENTRY | __pa(pmd);
 }
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 011358c1b18e..b3227415abda 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -74,15 +74,15 @@ static inline int is_zero_pfn(unsigned long pfn)
  * table can map
  * PGDIR_SHIFT determines what a third-level page table entry can map
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 # define PMD_SHIFT      20
 # define PUD_SHIFT      20
 # define PGDIR_SHIFT    20
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 # define PMD_SHIFT      20
 # define PUD_SHIFT      31
 # define PGDIR_SHIFT    42
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define PMD_SIZE        (1UL << PMD_SHIFT)
 #define PMD_MASK        (~(PMD_SIZE-1))
@@ -98,13 +98,13 @@ static inline int is_zero_pfn(unsigned long pfn)
  * that leads to 1024 pte per pgd
  */
 #define PTRS_PER_PTE    256
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define PTRS_PER_PMD    1
 #define PTRS_PER_PUD    1
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #define PTRS_PER_PMD    2048
 #define PTRS_PER_PUD    2048
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 #define PTRS_PER_PGD    2048
 
 #define FIRST_USER_ADDRESS  0
@@ -276,7 +276,7 @@ extern struct page *vmemmap;
  * swap pte is 1011 and 0001, 0011, 0101, 0111 are invalid.
  */
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 
 /* Bits in the segment table address-space-control-element */
 #define _ASCE_SPACE_SWITCH      0x80000000UL    /* space switch event       */
@@ -308,7 +308,7 @@ extern struct page *vmemmap;
 #define KVM_UR_BIT      0x00008000UL
 #define KVM_UC_BIT      0x00004000UL
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 /* Bits in the segment/region table address-space-control-element */
 #define _ASCE_ORIGIN            ~0xfffUL/* segment table origin             */
@@ -363,7 +363,7 @@ extern struct page *vmemmap;
 #define KVM_UR_BIT      0x0000800000000000UL
 #define KVM_UC_BIT      0x0000400000000000UL
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 /*
  * A user page table pointer has the space-switch-event bit, the
@@ -424,7 +424,7 @@ static inline int mm_has_pgste(struct mm_struct *mm)
 /*
  * pgd/pmd/pte query functions
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 
 static inline int pgd_present(pgd_t pgd) { return 1; }
 static inline int pgd_none(pgd_t pgd)    { return 0; }
@@ -434,7 +434,7 @@ static inline int pud_present(pud_t pud) { return 1; }
 static inline int pud_none(pud_t pud)    { return 0; }
 static inline int pud_bad(pud_t pud)     { return 0; }
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 static inline int pgd_present(pgd_t pgd)
 {
@@ -490,7 +490,7 @@ static inline int pud_bad(pud_t pud)
         return (pud_val(pud) & mask) != 0;
 }
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 static inline int pmd_present(pmd_t pmd)
 {
@@ -741,7 +741,7 @@ static inline int pte_young(pte_t pte)
 
 static inline void pgd_clear(pgd_t *pgd)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
                 pgd_val(*pgd) = _REGION2_ENTRY_EMPTY;
 #endif
@@ -749,7 +749,7 @@ static inline void pgd_clear(pgd_t *pgd)
 
 static inline void pud_clear(pud_t *pud)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         if ((pud_val(*pud) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
                 pud_val(*pud) = _REGION3_ENTRY_EMPTY;
 #endif
@@ -921,7 +921,7 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma,
 static inline void __ptep_ipte(unsigned long address, pte_t *ptep)
 {
         if (!(pte_val(*ptep) & _PAGE_INVALID)) {
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 /* pto must point to the start of the segment table */
                 pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00);
 #else
@@ -1116,7 +1116,7 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
 #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
 #define pgd_offset_k(address) pgd_offset(&init_mm, address)
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 
 #define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
 #define pud_deref(pmd) ({ BUG(); 0UL; })
@@ -1125,7 +1125,7 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
 #define pud_offset(pgd, address) ((pud_t *) pgd)
 #define pmd_offset(pud, address) ((pmd_t *) pud + pmd_index(address))
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 #define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
 #define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN)
@@ -1147,7 +1147,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
         return pmd + pmd_index(address);
 }
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define pfn_pte(pfn,pgprot) mk_pte_phys(__pa((pfn) << PAGE_SHIFT),(pgprot))
 #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
@@ -1196,7 +1196,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
  *  0000000000111111111122222222223333333333444444444455 5555 5 55566 66
  *  0123456789012345678901234567890123456789012345678901 2345 6 78901 23
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define __SWP_OFFSET_MASK (~0UL >> 12)
 #else
 #define __SWP_OFFSET_MASK (~0UL >> 11)
@@ -1217,11 +1217,11 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)   ((pte_t) { (x).val })
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 # define PTE_FILE_MAX_BITS      26
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 # define PTE_FILE_MAX_BITS      59
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define pte_to_pgoff(__pte) \
         ((((__pte).pte >> 12) << 7) + (((__pte).pte >> 1) & 0x7f))
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 0aa04f9bc624..62e0d9f9a29a 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -39,27 +39,27 @@ extern int sysctl_ieee_emulation_warnings;
 /*
  * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 
 #define TASK_SIZE               (1UL << 31)
 #define TASK_UNMAPPED_BASE      (1UL << 30)
 
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 
 #define TASK_SIZE_OF(tsk)       ((tsk)->mm->context.asce_limit)
 #define TASK_UNMAPPED_BASE      (test_thread_flag(TIF_31BIT) ? \
                                         (1UL << 30) : (1UL << 41))
 #define TASK_SIZE               TASK_SIZE_OF(current)
 
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define STACK_TOP               (1UL << 31)
 #define STACK_TOP_MAX           (1UL << 31)
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #define STACK_TOP               (1UL << (test_thread_flag(TIF_31BIT) ? 31:42))
 #define STACK_TOP_MAX           (1UL << 42)
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define HAVE_ARCH_PICK_MMAP_LAYOUT
 
@@ -179,7 +179,7 @@ static inline void psw_set_key(unsigned int key)
  */
 static inline void __load_psw(psw_t psw)
 {
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
         asm volatile("lpsw  %0" : : "Q" (psw) : "cc");
 #else
         asm volatile("lpswe %0" : : "Q" (psw) : "cc");
@@ -197,7 +197,7 @@ static inline void __load_psw_mask (unsigned long mask)
 
         psw.mask = mask;
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
         asm volatile(
                 "       basr    %0,0\n"
                 "0:     ahi     %0,1f-0b\n"
@@ -205,14 +205,14 @@ static inline void __load_psw_mask (unsigned long mask)
                 "       lpsw    %1\n"
                 "1:"
                 : "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc");
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
         asm volatile(
                 "       larl    %0,1f\n"
                 "       stg     %0,%O1+8(%R1)\n"
                 "       lpswe   %1\n"
                 "1:"
                 : "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc");
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 }
 
 /*
@@ -220,7 +220,7 @@ static inline void __load_psw_mask (unsigned long mask)
  */
 static inline unsigned long __rewind_psw(psw_t psw, unsigned long ilc)
 {
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
         if (psw.addr & PSW_ADDR_AMODE)
                 /* 31 bit mode */
                 return (psw.addr - ilc) | PSW_ADDR_AMODE;
@@ -250,7 +250,7 @@ static inline void __noreturn disabled_wait(unsigned long code)
          * Store status and then load disabled wait psw,
          * the processor is dead afterwards
          */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
         asm volatile(
                 "       stctl   0,0,0(%2)\n"
                 "       ni      0(%2),0xef\n"   /* switch off protection */
@@ -269,7 +269,7 @@ static inline void __noreturn disabled_wait(unsigned long code)
                 "       lpsw    0(%1)"
                 : "=m" (ctl_buf)
                 : "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc");
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
         asm volatile(
                 "       stctg   0,0,0(%2)\n"
                 "       ni      4(%2),0xef\n"   /* switch off protection */
@@ -302,7 +302,7 @@ static inline void __noreturn disabled_wait(unsigned long code)
                 "       lpswe   0(%1)"
                 : "=m" (ctl_buf)
                 : "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0", "1");
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
         while (1);
 }
 
@@ -338,7 +338,7 @@ extern void (*s390_base_ext_handler_fn)(void);
 /*
  * Helper macro for exception table entries
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define EX_TABLE(_fault,_target)                        \
         ".section __ex_table,\"a\"\n"                   \
         "       .align 4\n"                             \
diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h
index 5a2f731ce128..1ceee10264c3 100644
--- a/arch/s390/include/asm/rwsem.h
+++ b/arch/s390/include/asm/rwsem.h
@@ -41,17 +41,17 @@
 #error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead"
 #endif
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define RWSEM_UNLOCKED_VALUE    0x00000000
 #define RWSEM_ACTIVE_BIAS       0x00000001
 #define RWSEM_ACTIVE_MASK       0x0000ffff
 #define RWSEM_WAITING_BIAS      (-0x00010000)
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #define RWSEM_UNLOCKED_VALUE    0x0000000000000000L
 #define RWSEM_ACTIVE_BIAS       0x0000000000000001L
 #define RWSEM_ACTIVE_MASK       0x00000000ffffffffL
 #define RWSEM_WAITING_BIAS      (-0x0000000100000000L)
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 #define RWSEM_ACTIVE_READ_BIAS  RWSEM_ACTIVE_BIAS
 #define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
 
@@ -63,19 +63,19 @@ static inline void __down_read(struct rw_semaphore *sem)
         signed long old, new;
 
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
                 "       ahi     %1,%4\n"
                 "       cs      %0,%1,%2\n"
                 "       jl      0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
                 "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
                 "       aghi    %1,%4\n"
                 "       csg     %0,%1,%2\n"
                 "       jl      0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
                 : "=&d" (old), "=&d" (new), "=Q" (sem->count)
                 : "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
                 : "cc", "memory");
@@ -91,7 +91,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
         signed long old, new;
 
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       l       %0,%2\n"
                 "0:     ltr     %1,%0\n"
                 "       jm      1f\n"
@@ -99,7 +99,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
                 "       cs      %0,%1,%2\n"
                 "       jl      0b\n"
                 "1:"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
                 "       lg      %0,%2\n"
                 "0:     ltgr    %1,%0\n"
                 "       jm      1f\n"
@@ -107,7 +107,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
                 "       csg     %0,%1,%2\n"
                 "       jl      0b\n"
                 "1:"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
                 : "=&d" (old), "=&d" (new), "=Q" (sem->count)
                 : "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
                 : "cc", "memory");
@@ -123,19 +123,19 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
 
         tmp = RWSEM_ACTIVE_WRITE_BIAS;
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
                 "       a       %1,%4\n"
                 "       cs      %0,%1,%2\n"
                 "       jl      0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
                 "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
                 "       ag      %1,%4\n"
                 "       csg     %0,%1,%2\n"
                 "       jl      0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
                 : "=&d" (old), "=&d" (new), "=Q" (sem->count)
                 : "Q" (sem->count), "m" (tmp)
                 : "cc", "memory");
@@ -156,19 +156,19 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
         signed long old;
 
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       l       %0,%1\n"
                 "0:     ltr     %0,%0\n"
                 "       jnz     1f\n"
                 "       cs      %0,%3,%1\n"
                 "       jl      0b\n"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
                 "       lg      %0,%1\n"
                 "0:     ltgr    %0,%0\n"
                 "       jnz     1f\n"
                 "       csg     %0,%3,%1\n"
                 "       jl      0b\n"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
                 "1:"
                 : "=&d" (old), "=Q" (sem->count)
                 : "Q" (sem->count), "d" (RWSEM_ACTIVE_WRITE_BIAS)
@@ -184,19 +184,19 @@ static inline void __up_read(struct rw_semaphore *sem)
         signed long old, new;
 
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
                 "       ahi     %1,%4\n"
                 "       cs      %0,%1,%2\n"
                 "       jl      0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
                 "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
                 "       aghi    %1,%4\n"
                 "       csg     %0,%1,%2\n"
                 "       jl      0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
                 : "=&d" (old), "=&d" (new), "=Q" (sem->count)
                 : "Q" (sem->count), "i" (-RWSEM_ACTIVE_READ_BIAS)
                 : "cc", "memory");
@@ -214,19 +214,19 @@ static inline void __up_write(struct rw_semaphore *sem)
 
         tmp = -RWSEM_ACTIVE_WRITE_BIAS;
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
                 "       a       %1,%4\n"
                 "       cs      %0,%1,%2\n"
                 "       jl      0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
                 "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
                 "       ag      %1,%4\n"
                 "       csg     %0,%1,%2\n"
                 "       jl      0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
                 : "=&d" (old), "=&d" (new), "=Q" (sem->count)
                 : "Q" (sem->count), "m" (tmp)
                 : "cc", "memory");
@@ -244,19 +244,19 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 
         tmp = -RWSEM_WAITING_BIAS;
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
                 "       a       %1,%4\n"
                 "       cs      %0,%1,%2\n"
                 "       jl      0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
                 "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
                 "       ag      %1,%4\n"
                 "       csg     %0,%1,%2\n"
                 "       jl      0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
                 : "=&d" (old), "=&d" (new), "=Q" (sem->count)
                 : "Q" (sem->count), "m" (tmp)
                 : "cc", "memory");
@@ -272,19 +272,19 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
         signed long old, new;
 
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
                 "       ar      %1,%4\n"
                 "       cs      %0,%1,%2\n"
                 "       jl      0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
                 "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
                 "       agr     %1,%4\n"
                 "       csg     %0,%1,%2\n"
                 "       jl      0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
                 : "=&d" (old), "=&d" (new), "=Q" (sem->count)
                 : "Q" (sem->count), "d" (delta)
                 : "cc", "memory");
@@ -298,19 +298,19 @@ static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
         signed long old, new;
 
         asm volatile(
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
                 "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
                 "       ar      %1,%4\n"
                 "       cs      %0,%1,%2\n"
                 "       jl      0b"
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
                 "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
                 "       agr     %1,%4\n"
                 "       csg     %0,%1,%2\n"
                 "       jl      0b"
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
                 : "=&d" (old), "=&d" (new), "=Q" (sem->count)
                 : "Q" (sem->count), "d" (delta)
                 : "cc", "memory");
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 7244e1f64126..40eb2ff88e9e 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -22,19 +22,19 @@
 #include <asm/lowcore.h>
 #include <asm/types.h>
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define IPL_DEVICE        (*(unsigned long *)  (0x10404))
 #define INITRD_START      (*(unsigned long *)  (0x1040C))
 #define INITRD_SIZE       (*(unsigned long *)  (0x10414))
 #define OLDMEM_BASE       (*(unsigned long *)  (0x1041C))
 #define OLDMEM_SIZE       (*(unsigned long *)  (0x10424))
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #define IPL_DEVICE        (*(unsigned long *)  (0x10400))
 #define INITRD_START      (*(unsigned long *)  (0x10408))
 #define INITRD_SIZE       (*(unsigned long *)  (0x10410))
 #define OLDMEM_BASE       (*(unsigned long *)  (0x10418))
 #define OLDMEM_SIZE       (*(unsigned long *)  (0x10420))
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 #define COMMAND_LINE      ((char *)            (0x10480))
 
 #define CHUNK_READ_WRITE 0
@@ -89,7 +89,7 @@ extern unsigned int user_mode;
 
 #define MACHINE_HAS_DIAG9C      (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define MACHINE_HAS_IEEE        (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
 #define MACHINE_HAS_CSP         (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
 #define MACHINE_HAS_IDTE        (0)
@@ -100,7 +100,7 @@ extern unsigned int user_mode;
 #define MACHINE_HAS_PFMF        (0)
 #define MACHINE_HAS_SPP         (0)
 #define MACHINE_HAS_TOPOLOGY    (0)
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #define MACHINE_HAS_IEEE        (1)
 #define MACHINE_HAS_CSP         (1)
 #define MACHINE_HAS_IDTE        (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
@@ -111,7 +111,7 @@ extern unsigned int user_mode;
 #define MACHINE_HAS_PFMF        (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
 #define MACHINE_HAS_SPP         (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
 #define MACHINE_HAS_TOPOLOGY    (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define ZFCPDUMP_HSA_SIZE       (32UL<<20)
 #define ZFCPDUMP_HSA_SIZE_MAX   (64UL<<20)
@@ -153,19 +153,19 @@ extern void (*_machine_power_off)(void);
 
 #else /* __ASSEMBLY__ */
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define IPL_DEVICE        0x10404
 #define INITRD_START      0x1040C
 #define INITRD_SIZE       0x10414
 #define OLDMEM_BASE       0x1041C
 #define OLDMEM_SIZE       0x10424
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #define IPL_DEVICE        0x10400
 #define INITRD_START      0x10408
 #define INITRD_SIZE       0x10410
 #define OLDMEM_BASE       0x10418
 #define OLDMEM_SIZE       0x10420
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 #define COMMAND_LINE      0x10480
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/s390/include/asm/sfp-util.h b/arch/s390/include/asm/sfp-util.h
index ca3f8814e361..5959bfb3b693 100644
--- a/arch/s390/include/asm/sfp-util.h
+++ b/arch/s390/include/asm/sfp-util.h
@@ -51,7 +51,7 @@
         wl = __wl;                                      \
 })
 
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
 #define udiv_qrnnd(q, r, n1, n0, d)                     \
   do { unsigned long __n;                               \
        unsigned int __r, __d;                           \
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index ed27145c9ae3..4e40b25cd060 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -12,10 +12,10 @@
 /*
  * Size of kernel stack for each process
  */
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 #define THREAD_ORDER 1
 #define ASYNC_ORDER  1
-#else /* __s390x__ */
+#else /* CONFIG_64BIT */
 #ifndef __SMALL_STACK
 #define THREAD_ORDER 2
 #define ASYNC_ORDER  2
@@ -23,7 +23,7 @@
 #define THREAD_ORDER 1
 #define ASYNC_ORDER  1
 #endif
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
 #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
 #define ASYNC_SIZE  (PAGE_SIZE << ASYNC_ORDER)
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index 775a5eea8f9e..06e5acbc84bd 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -106,7 +106,7 @@ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
 static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
                                 unsigned long address)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         if (tlb->mm->context.asce_limit <= (1UL << 31))
                 return;
         if (!tlb->fullmm)
@@ -125,7 +125,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
 static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
                                 unsigned long address)
 {
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
         if (tlb->mm->context.asce_limit <= (1UL << 42))
                 return;
         if (!tlb->fullmm)
diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
index 1d8648cf2fea..9fde315f3a7c 100644
--- a/arch/s390/include/asm/tlbflush.h
+++ b/arch/s390/include/asm/tlbflush.h
@@ -27,12 +27,12 @@ static inline void __tlb_flush_global(void)
         register unsigned long reg4 asm("4");
         long dummy;
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
         if (!MACHINE_HAS_CSP) {
                 smp_ptlb_all();
                 return;
         }
-#endif /* __s390x__ */
+#endif /* CONFIG_64BIT */
 
         dummy = 0;
         reg2 = reg3 = 0;
diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h
index 05ebbcdbbf6b..6c8c35f8df14 100644
--- a/arch/s390/include/asm/types.h
+++ b/arch/s390/include/asm/types.h
@@ -28,7 +28,7 @@ typedef __signed__ long saddr_t;
 
 #ifndef __ASSEMBLY__
 
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
 typedef union {
         unsigned long long pair;
         struct {
@@ -37,7 +37,7 @@ typedef union {
         } subreg;
 } register_pair;
 
-#endif /* ! __s390x__   */
+#endif /* ! CONFIG_64BIT   */
 #endif /* __ASSEMBLY__  */
 #endif /* __KERNEL__    */
 #endif /* _S390_TYPES_H */