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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Browse Source 
Pull s390 patches from Heiko Carstens:
 "A couple of s390 patches for the 3.5 merge window.  Just a collection
  of bug fixes and cleanups."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/uaccess: fix access_ok compile warnings
  s390/cmpxchg: select HAVE_CMPXCHG_LOCAL option
  s390/cmpxchg: fix sign extension bugs
  s390/cmpxchg: fix 1 and 2 byte memory accesses
  s390/cmpxchg: fix compile warnings specific to s390
  s390/cmpxchg: add missing memory barrier to cmpxchg64
  s390/cpu: remove cpu "capabilities" sysfs attribute
  s390/kernel: Fix smp_call_ipl_cpu() for offline CPUs
  s390/kernel: Introduce memcpy_absolute() function
  s390/headers: replace __s390x__ with CONFIG_64BIT where possible
  s390/headers: remove #ifdef __KERNEL__ from not exported headers
  s390/irq: split irq stats for cpu-measurement alert facilities
  s390/kexec: Move early_pgm_check_handler() to text section
  s390/kdump: Use real mode for PSW restart and kexec
  s390/kdump: Account /sys/kernel/kexec_crash_size changes in OS info
  s390/kernel: Remove OS info init function call and diag 308 for kdump
This commit is contained in:
Linus Torvalds 2012-05-31 10:51:10 -07:00
commit 8ee78c6fb9
50 changed files with 244 additions and 310 deletions
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1
arch/s390/Kconfig
View File

@ -87,6 +87,7 @@ config S390
select ARCH_SAVE_PAGE_KEYS if HIBERNATION
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_CMPXCHG_LOCAL
select ARCH_DISCARD_MEMBLOCK
select ARCH_INLINE_SPIN_TRYLOCK
select ARCH_INLINE_SPIN_TRYLOCK_BH

21
arch/s390/include/asm/bitops.h
View File

@ -13,8 +13,6 @@
*
*/
#ifdef __KERNEL__
#ifndef _LINUX_BITOPS_H
#error only <linux/bitops.h> can be included directly
#endif
@ -63,7 +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
@ -83,7 +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
@ -103,7 +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")
@ -412,7 +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"
@ -449,7 +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"
@ -481,7 +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;
@ -505,7 +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;
@ -546,7 +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"
@ -834,7 +832,4 @@ static inline int find_next_bit_le(void *vaddr, unsigned long size,
#include <asm-generic/bitops/ext2-atomic-setbit.h>
#endif /* __KERNEL__ */
#endif /* _S390_BITOPS_H */

4
arch/s390/include/asm/cio.h
View File

@ -10,8 +10,6 @@
#include <linux/spinlock.h>
#include <asm/types.h>
#ifdef __KERNEL__
#define LPM_ANYPATH 0xff
#define __MAX_CSSID 0
@ -291,5 +289,3 @@ int chsc_sstpc(void *page, unsigned int op, u16 ctrl);
int chsc_sstpi(void *page, void *result, size_t size);
#endif
#endif

54
arch/s390/include/asm/cmpxchg.h
View File

@ -29,7 +29,7 @@ static inline unsigned long __xchg(unsigned long x, void *ptr, int size)
" cs %0,0,%4\n"
" jl 0b\n"
: "=&d" (old), "=Q" (*(int *) addr)
: "d" (x << shift), "d" (~(255 << shift)),
: "d" ((x & 0xff) << shift), "d" (~(0xff << shift)),
"Q" (*(int *) addr) : "memory", "cc", "0");
return old >> shift;
case 2:
@ -44,7 +44,7 @@ static inline unsigned long __xchg(unsigned long x, void *ptr, int size)
" cs %0,0,%4\n"
" jl 0b\n"
: "=&d" (old), "=Q" (*(int *) addr)
: "d" (x << shift), "d" (~(65535 << shift)),
: "d" ((x & 0xffff) << shift), "d" (~(0xffff << shift)),
"Q" (*(int *) addr) : "memory", "cc", "0");
return old >> shift;
case 4:
@ -113,9 +113,10 @@ static inline unsigned long __cmpxchg(void *ptr, unsigned long old,
" nr %1,%5\n"
" jnz 0b\n"
"1:"
: "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
: "d" (old << shift), "d" (new << shift),
"d" (~(255 << shift)), "Q" (*(int *) ptr)
: "=&d" (prev), "=&d" (tmp), "+Q" (*(int *) addr)
: "d" ((old & 0xff) << shift),
"d" ((new & 0xff) << shift),
"d" (~(0xff << shift))
: "memory", "cc");
return prev >> shift;
case 2:
@ -134,9 +135,10 @@ static inline unsigned long __cmpxchg(void *ptr, unsigned long old,
" nr %1,%5\n"
" jnz 0b\n"
"1:"
: "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
: "d" (old << shift), "d" (new << shift),
"d" (~(65535 << shift)), "Q" (*(int *) ptr)
: "=&d" (prev), "=&d" (tmp), "+Q" (*(int *) addr)
: "d" ((old & 0xffff) << shift),
"d" ((new & 0xffff) << shift),
"d" (~(0xffff << shift))
: "memory", "cc");
return prev >> shift;
case 4:
@ -160,9 +162,14 @@ static inline unsigned long __cmpxchg(void *ptr, unsigned long old,
return old;
}
#define cmpxchg(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \
(unsigned long)(n), sizeof(*(ptr))))
#define cmpxchg(ptr, o, n) \
({ \
__typeof__(*(ptr)) __ret; \
__ret = (__typeof__(*(ptr))) \
__cmpxchg((ptr), (unsigned long)(o), (unsigned long)(n), \
sizeof(*(ptr))); \
__ret; \
})
#ifdef CONFIG_64BIT
#define cmpxchg64(ptr, o, n) \
@ -181,13 +188,19 @@ static inline unsigned long long __cmpxchg64(void *ptr,
" cds %0,%2,%1"
: "+&d" (rp_old), "=Q" (ptr)
: "d" (rp_new), "Q" (ptr)
: "cc");
: "memory", "cc");
return rp_old.pair;
}
#define cmpxchg64(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg64((ptr), \
(unsigned long long)(o), \
(unsigned long long)(n)))
#define cmpxchg64(ptr, o, n) \
({ \
__typeof__(*(ptr)) __ret; \
__ret = (__typeof__(*(ptr))) \
__cmpxchg64((ptr), \
(unsigned long long)(o), \
(unsigned long long)(n)); \
__ret; \
})
#endif /* CONFIG_64BIT */
#include <asm-generic/cmpxchg-local.h>
@ -216,8 +229,13 @@ static inline unsigned long __cmpxchg_local(void *ptr,
* them available.
*/
#define cmpxchg_local(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \
(unsigned long)(n), sizeof(*(ptr))))
({ \
__typeof__(*(ptr)) __ret; \
__ret = (__typeof__(*(ptr))) \
__cmpxchg_local((ptr), (unsigned long)(o), \
(unsigned long)(n), sizeof(*(ptr))); \
__ret; \
})
#define cmpxchg64_local(ptr, o, n) cmpxchg64((ptr), (o), (n))

10
arch/s390/include/asm/cputime.h
View File

@ -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;

6
arch/s390/include/asm/ctl_reg.h
View File

@ -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; \

3
arch/s390/include/asm/current.h
View File

@ -11,13 +11,10 @@
#ifndef _S390_CURRENT_H
#define _S390_CURRENT_H
#ifdef __KERNEL__
#include <asm/lowcore.h>
struct task_struct;
#define current ((struct task_struct *const)S390_lowcore.current_task)
#endif
#endif /* !(_S390_CURRENT_H) */

12
arch/s390/include/asm/elf.h
View File

@ -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

3
arch/s390/include/asm/futex.h
View File

@ -1,8 +1,6 @@
#ifndef _ASM_S390_FUTEX_H
#define _ASM_S390_FUTEX_H
#ifdef __KERNEL__
#include <linux/futex.h>
#include <linux/uaccess.h>
#include <asm/errno.h>
@ -48,5 +46,4 @@ static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
return uaccess.futex_atomic_cmpxchg(uval, uaddr, oldval, newval);
}
#endif /* __KERNEL__ */
#endif /* _ASM_S390_FUTEX_H */

10
arch/s390/include/asm/idals.h
View File

@ -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

4
arch/s390/include/asm/io.h
View File

@ -11,8 +11,6 @@
#ifndef _S390_IO_H
#define _S390_IO_H
#ifdef __KERNEL__
#include <asm/page.h>
#define IO_SPACE_LIMIT 0xffffffff
@ -46,6 +44,4 @@ void unxlate_dev_mem_ptr(unsigned long phys, void *addr);
*/
#define xlate_dev_kmem_ptr(p) p
#endif /* __KERNEL__ */
#endif

3
arch/s390/include/asm/irq.h
View File

@ -17,7 +17,8 @@ enum interruption_class {
EXTINT_VRT,
EXTINT_SCP,
EXTINT_IUC,
EXTINT_CPM,
EXTINT_CMS,
EXTINT_CMC,
IOINT_CIO,
IOINT_QAI,
IOINT_DAS,

4
arch/s390/include/asm/kexec.h
View File

@ -10,10 +10,8 @@
#ifndef _S390_KEXEC_H
#define _S390_KEXEC_H
#ifdef __KERNEL__
#include <asm/page.h>
#endif
#include <asm/processor.h>
#include <asm/page.h>
/*
* KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
* I.e. Maximum page that is mapped directly into kernel memory,

2
arch/s390/include/asm/kmap_types.h
View File

@ -1,8 +1,6 @@
#ifdef __KERNEL__
#ifndef _ASM_KMAP_TYPES_H
#define _ASM_KMAP_TYPES_H
#include <asm-generic/kmap_types.h>
#endif
#endif /* __KERNEL__ */

2
arch/s390/include/asm/mmu_context.h
View File

@ -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"

2
arch/s390/include/asm/module.h
View File

@ -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

5
arch/s390/include/asm/os_info.h
View File

@ -13,7 +13,6 @@
#define OS_INFO_VMCOREINFO 0
#define OS_INFO_REIPL_BLOCK 1
#define OS_INFO_INIT_FN 2
struct os_info_entry {
u64 addr;
@ -28,8 +27,8 @@ struct os_info {
u16 version_minor;
u64 crashkernel_addr;
u64 crashkernel_size;
struct os_info_entry entry[3];
u8 reserved[4004];
struct os_info_entry entry[2];
u8 reserved[4024];
} __packed;
void os_info_init(void);

2
arch/s390/include/asm/percpu.h
View File

@ -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

6
arch/s390/include/asm/pgalloc.h
View File

@ -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)
{

44
arch/s390/include/asm/pgtable.h
View File

@ -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))

39
arch/s390/include/asm/processor.h
View File

@ -20,7 +20,6 @@
#include <asm/ptrace.h>
#include <asm/setup.h>
#ifdef __KERNEL__
/*
* Default implementation of macro that returns current
* instruction pointer ("program counter").
@ -33,39 +32,33 @@ static inline void get_cpu_id(struct cpuid *ptr)
}
extern void s390_adjust_jiffies(void);
extern int get_cpu_capability(unsigned int *);
extern const struct seq_operations cpuinfo_op;
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 */
#ifdef __KERNEL__
#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
#endif /* CONFIG_64BIT */
#define HAVE_ARCH_PICK_MMAP_LAYOUT
@ -182,7 +175,7 @@ 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");
@ -200,7 +193,7 @@ 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"
@ -208,14 +201,14 @@ 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 */
}
/*
@ -223,7 +216,7 @@ 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;
@ -253,7 +246,7 @@ 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 */
@ -272,7 +265,7 @@ 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 */
@ -305,7 +298,7 @@ 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);
}
@ -338,12 +331,10 @@ extern void (*s390_base_ext_handler_fn)(void);
#define ARCH_LOW_ADDRESS_LIMIT 0x7fffffffUL
#endif
/*
* Helper macro for exception table entries
*/
#ifndef __s390x__
#ifndef CONFIG_64BIT
#define EX_TABLE(_fault,_target) \
".section __ex_table,\"a\"\n" \
" .align 4\n" \

63
arch/s390/include/asm/rwsem.h
View File

@ -41,19 +41,17 @@
#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead"
#endif
#ifdef __KERNEL__
#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)
@ -65,19 +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");
@ -93,7 +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"
@ -101,7 +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"
@ -109,7 +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");
@ -125,19 +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");
@ -158,19 +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)
@ -186,19 +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");
@ -216,19 +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");
@ -246,19 +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");
@ -274,19 +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");
@ -300,24 +298,23 @@ 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");
return new;
}
#endif /* __KERNEL__ */
#endif /* _S390_RWSEM_H */

18
arch/s390/include/asm/setup.h
View File

@ -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__ */

2
arch/s390/include/asm/sfp-util.h
View File

@ -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; \

4
arch/s390/include/asm/string.h
View File

@ -9,8 +9,6 @@
#ifndef _S390_STRING_H_
#define _S390_STRING_H_
#ifdef __KERNEL__
#ifndef _LINUX_TYPES_H
#include <linux/types.h>
#endif
@ -152,6 +150,4 @@ size_t strlen(const char *s);
size_t strnlen(const char * s, size_t n);
#endif /* !IN_ARCH_STRING_C */
#endif /* __KERNEL__ */
#endif /* __S390_STRING_H_ */

10
arch/s390/include/asm/thread_info.h
View File

@ -9,15 +9,13 @@
#ifndef _ASM_THREAD_INFO_H
#define _ASM_THREAD_INFO_H
#ifdef __KERNEL__
/*
* 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
@ -25,7 +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)
@ -123,8 +121,6 @@ static inline struct thread_info *current_thread_info(void)
#define is_32bit_task() (1)
#endif
#endif /* __KERNEL__ */
#define PREEMPT_ACTIVE 0x4000000
#endif /* _ASM_THREAD_INFO_H */

4
arch/s390/include/asm/timer.h
View File

@ -10,8 +10,6 @@
#ifndef _ASM_S390_TIMER_H
#define _ASM_S390_TIMER_H
#ifdef __KERNEL__
#include <linux/timer.h>
#define VTIMER_MAX_SLICE (0x7ffffffffffff000LL)
@ -50,6 +48,4 @@ extern void vtime_init(void);
extern void vtime_stop_cpu(void);
extern void vtime_start_leave(void);
#endif /* __KERNEL__ */
#endif /* _ASM_S390_TIMER_H */

4
arch/s390/include/asm/tlb.h
View File

@ -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)

4
arch/s390/include/asm/tlbflush.h
View File

@ -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;

4
arch/s390/include/asm/types.h
View File

@ -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 */

15
arch/s390/include/asm/uaccess.h
View File

@ -50,10 +50,15 @@
#define segment_eq(a,b) ((a).ar4 == (b).ar4)
#define __access_ok(addr, size) \
({ \
__chk_user_ptr(addr); \
1; \
static inline int __range_ok(unsigned long addr, unsigned long size)
{
return 1;
}
#define __access_ok(addr, size) \
({ \
__chk_user_ptr(addr); \
__range_ok((unsigned long)(addr), (size)); \
})
#define access_ok(type, addr, size) __access_ok(addr, size)
@ -377,7 +382,7 @@ clear_user(void __user *to, unsigned long n)
}
extern int memcpy_real(void *, void *, size_t);
extern void copy_to_absolute_zero(void *dest, void *src, size_t count);
extern void memcpy_absolute(void *, void *, size_t);
extern int copy_to_user_real(void __user *dest, void *src, size_t count);
extern int copy_from_user_real(void *dest, void __user *src, size_t count);

5
arch/s390/include/asm/vdso.h
View File

@ -1,8 +1,6 @@
#ifndef __S390_VDSO_H__
#define __S390_VDSO_H__
#ifdef __KERNEL__
/* Default link addresses for the vDSOs */
#define VDSO32_LBASE 0
#define VDSO64_LBASE 0
@ -45,7 +43,4 @@ void vdso_free_per_cpu(struct _lowcore *lowcore);
#endif
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* __S390_VDSO_H__ */

12
arch/s390/kernel/base.S
View File

@ -88,6 +88,9 @@ ENTRY(diag308_reset)
stctg %c0,%c15,0(%r4)
larl %r4,.Lfpctl # Floating point control register
stfpc 0(%r4)
larl %r4,.Lcontinue_psw # Save PSW flags
epsw %r2,%r3
stm %r2,%r3,0(%r4)
larl %r4,.Lrestart_psw # Setup restart PSW at absolute 0
lghi %r3,0
lg %r4,0(%r4) # Save PSW
@ -103,11 +106,20 @@ ENTRY(diag308_reset)
lctlg %c0,%c15,0(%r4)
larl %r4,.Lfpctl # Restore floating point ctl register
lfpc 0(%r4)
larl %r4,.Lcontinue_psw # Restore PSW flags
lpswe 0(%r4)
.Lcontinue:
br %r14
.align 16
.Lrestart_psw:
.long 0x00080000,0x80000000 + .Lrestart_part2
.section .data..nosave,"aw",@progbits
.align 8
.Lcontinue_psw:
.quad 0,.Lcontinue
.previous
.section .bss
.align 8
.Lctlregs:

2
arch/s390/kernel/early.c
View File

@ -237,7 +237,7 @@ static noinline __init void detect_machine_type(void)
S390_lowcore.machine_flags |= MACHINE_FLAG_VM;
}
static __init void early_pgm_check_handler(void)
static void early_pgm_check_handler(void)
{
unsigned long addr;
const struct exception_table_entry *fixup;

7
arch/s390/kernel/head_kdump.S
View File

@ -85,11 +85,6 @@ startup_kdump_relocated:
basr %r13,0
0:
mvc 0(8,%r0),.Lrestart_psw-0b(%r13) # Setup restart PSW
mvc 464(16,%r0),.Lpgm_psw-0b(%r13) # Setup pgm check PSW
lhi %r1,1 # Start new kernel
diag %r1,%r1,0x308 # with diag 308
.Lno_diag308: # No diag 308
sam31 # Switch to 31 bit addr mode
sr %r1,%r1 # Erase register r1
sr %r2,%r2 # Erase register r2
@ -98,8 +93,6 @@ startup_kdump_relocated:
.align 8
.Lrestart_psw:
.long 0x00080000,0x80000000 + startup
.Lpgm_psw:
.quad 0x0000000180000000,0x0000000000000000 + .Lno_diag308
#else
.align 2
.Lep_startup_kdump:

14
arch/s390/kernel/ipl.c
View File

@ -1528,12 +1528,15 @@ static struct shutdown_action __refdata dump_action = {
static void dump_reipl_run(struct shutdown_trigger *trigger)
{
u32 csum;
struct {
void *addr;
__u32 csum;
} __packed ipib;
csum = csum_partial(reipl_block_actual, reipl_block_actual->hdr.len, 0);
copy_to_absolute_zero(&S390_lowcore.ipib_checksum, &csum, sizeof(csum));
copy_to_absolute_zero(&S390_lowcore.ipib, &reipl_block_actual,
sizeof(reipl_block_actual));
ipib.csum = csum_partial(reipl_block_actual,
reipl_block_actual->hdr.len, 0);
ipib.addr = reipl_block_actual;
memcpy_absolute(&S390_lowcore.ipib, &ipib, sizeof(ipib));
dump_run(trigger);
}
@ -1750,6 +1753,7 @@ static struct kobj_attribute on_restart_attr =
static void __do_restart(void *ignore)
{
__arch_local_irq_stosm(0x04); /* enable DAT */
smp_send_stop();
#ifdef CONFIG_CRASH_DUMP
crash_kexec(NULL);

3
arch/s390/kernel/irq.c
View File

@ -42,7 +42,8 @@ static const struct irq_class intrclass_names[] = {
{.name = "VRT", .desc = "[EXT] Virtio" },
{.name = "SCP", .desc = "[EXT] Service Call" },
{.name = "IUC", .desc = "[EXT] IUCV" },
{.name = "CPM", .desc = "[EXT] CPU Measurement" },
{.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling" },
{.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter" },
{.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt" },
{.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt" },
{.name = "DAS", .desc = "[I/O] DASD" },

11
arch/s390/kernel/machine_kexec.c
View File

@ -24,6 +24,7 @@
#include <asm/ipl.h>
#include <asm/diag.h>
#include <asm/asm-offsets.h>
#include <asm/os_info.h>
typedef void (*relocate_kernel_t)(kimage_entry_t *, unsigned long);
@ -79,8 +80,8 @@ static void __do_machine_kdump(void *image)
#ifdef CONFIG_CRASH_DUMP
int (*start_kdump)(int) = (void *)((struct kimage *) image)->start;
__load_psw_mask(PSW_MASK_BASE | PSW_DEFAULT_KEY | PSW_MASK_EA | PSW_MASK_BA);
setup_regs();
__load_psw_mask(PSW_MASK_BASE | PSW_DEFAULT_KEY | PSW_MASK_EA | PSW_MASK_BA);
start_kdump(1);
#endif
}
@ -114,8 +115,13 @@ static void crash_map_pages(int enable)
size % KEXEC_CRASH_MEM_ALIGN);
if (enable)
vmem_add_mapping(crashk_res.start, size);
else
else {
vmem_remove_mapping(crashk_res.start, size);
if (size)
os_info_crashkernel_add(crashk_res.start, size);
else
os_info_crashkernel_add(0, 0);
}
}
/*
@ -208,6 +214,7 @@ static void __machine_kexec(void *data)
{
struct kimage *image = data;
__arch_local_irq_stosm(0x04); /* enable DAT */
pfault_fini();
tracing_off();
debug_locks_off();

3
arch/s390/kernel/os_info.c
View File

@ -60,7 +60,7 @@ void __init os_info_init(void)
os_info.version_minor = OS_INFO_VERSION_MINOR;
os_info.magic = OS_INFO_MAGIC;
os_info.csum = os_info_csum(&os_info);
copy_to_absolute_zero(&S390_lowcore.os_info, &ptr, sizeof(ptr));
memcpy_absolute(&S390_lowcore.os_info, &ptr, sizeof(ptr));
}
#ifdef CONFIG_CRASH_DUMP
@ -138,7 +138,6 @@ static void os_info_old_init(void)
goto fail_free;
os_info_old_alloc(OS_INFO_VMCOREINFO, 1);
os_info_old_alloc(OS_INFO_REIPL_BLOCK, 1);
os_info_old_alloc(OS_INFO_INIT_FN, PAGE_SIZE);
pr_info("crashkernel: addr=0x%lx size=%lu\n",
(unsigned long) os_info_old->crashkernel_addr,
(unsigned long) os_info_old->crashkernel_size);

2
arch/s390/kernel/perf_cpum_cf.c
View File

@ -225,7 +225,7 @@ static void cpumf_measurement_alert(struct ext_code ext_code,
if (!(alert & CPU_MF_INT_CF_MASK))
return;
kstat_cpu(smp_processor_id()).irqs[EXTINT_CPM]++;
kstat_cpu(smp_processor_id()).irqs[EXTINT_CMC]++;
cpuhw = &__get_cpu_var(cpu_hw_events);
/* Measurement alerts are shared and might happen when the PMU

12
arch/s390/kernel/setup.c
View File

@ -428,10 +428,12 @@ static void __init setup_lowcore(void)
lc->restart_fn = (unsigned long) do_restart;
lc->restart_data = 0;
lc->restart_source = -1UL;
memcpy(&S390_lowcore.restart_stack, &lc->restart_stack,
4*sizeof(unsigned long));
copy_to_absolute_zero(&S390_lowcore.restart_psw,
&lc->restart_psw, sizeof(psw_t));
/* Setup absolute zero lowcore */
memcpy_absolute(&S390_lowcore.restart_stack, &lc->restart_stack,
4 * sizeof(unsigned long));
memcpy_absolute(&S390_lowcore.restart_psw, &lc->restart_psw,
sizeof(lc->restart_psw));
set_prefix((u32)(unsigned long) lc);
lowcore_ptr[0] = lc;
@ -598,7 +600,7 @@ static void __init setup_vmcoreinfo(void)
#ifdef CONFIG_KEXEC
unsigned long ptr = paddr_vmcoreinfo_note();
copy_to_absolute_zero(&S390_lowcore.vmcore_info, &ptr, sizeof(ptr));
memcpy_absolute(&S390_lowcore.vmcore_info, &ptr, sizeof(ptr));
#endif
}

45
arch/s390/kernel/smp.c
View File

@ -297,26 +297,27 @@ static void pcpu_start_fn(struct pcpu *pcpu, void (*func)(void *), void *data)
static void pcpu_delegate(struct pcpu *pcpu, void (*func)(void *),
void *data, unsigned long stack)
{
struct _lowcore *lc = pcpu->lowcore;
unsigned short this_cpu;
struct _lowcore *lc = lowcore_ptr[pcpu - pcpu_devices];
struct {
unsigned long stack;
void *func;
void *data;
unsigned long source;
} restart = { stack, func, data, stap() };
__load_psw_mask(psw_kernel_bits);
this_cpu = stap();
if (pcpu->address == this_cpu)
if (pcpu->address == restart.source)
func(data); /* should not return */
/* Stop target cpu (if func returns this stops the current cpu). */
pcpu_sigp_retry(pcpu, sigp_stop, 0);
/* Restart func on the target cpu and stop the current cpu. */
lc->restart_stack = stack;
lc->restart_fn = (unsigned long) func;
lc->restart_data = (unsigned long) data;
lc->restart_source = (unsigned long) this_cpu;
memcpy_absolute(&lc->restart_stack, &restart, sizeof(restart));
asm volatile(
"0: sigp 0,%0,6 # sigp restart to target cpu\n"
" brc 2,0b # busy, try again\n"
"1: sigp 0,%1,5 # sigp stop to current cpu\n"
" brc 2,1b # busy, try again\n"
: : "d" (pcpu->address), "d" (this_cpu) : "0", "1", "cc");
: : "d" (pcpu->address), "d" (restart.source) : "0", "1", "cc");
for (;;) ;
}
@ -800,17 +801,6 @@ void __noreturn cpu_die(void)
#endif /* CONFIG_HOTPLUG_CPU */
static void smp_call_os_info_init_fn(void)
{
int (*init_fn)(void);
unsigned long size;
init_fn = os_info_old_entry(OS_INFO_INIT_FN, &size);
if (!init_fn)
return;
init_fn();
}
void __init smp_prepare_cpus(unsigned int max_cpus)
{
/* request the 0x1201 emergency signal external interrupt */
@ -819,7 +809,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
/* request the 0x1202 external call external interrupt */
if (register_external_interrupt(0x1202, do_ext_call_interrupt) != 0)
panic("Couldn't request external interrupt 0x1202");
smp_call_os_info_init_fn();
smp_detect_cpus();
}
@ -943,19 +932,6 @@ static struct attribute_group cpu_common_attr_group = {
.attrs = cpu_common_attrs,
};
static ssize_t show_capability(struct device *dev,
struct device_attribute *attr, char *buf)
{
unsigned int capability;
int rc;
rc = get_cpu_capability(&capability);
if (rc)
return rc;
return sprintf(buf, "%u\n", capability);
}
static DEVICE_ATTR(capability, 0444, show_capability, NULL);
static ssize_t show_idle_count(struct device *dev,
struct device_attribute *attr, char *buf)
{
@ -993,7 +969,6 @@ static ssize_t show_idle_time(struct device *dev,
static DEVICE_ATTR(idle_time_us, 0444, show_idle_time, NULL);
static struct attribute *cpu_online_attrs[] = {
&dev_attr_capability.attr,
&dev_attr_idle_count.attr,
&dev_attr_idle_time_us.attr,
NULL,

21
arch/s390/kernel/sysinfo.c
View File

@ -392,27 +392,6 @@ static __init int create_proc_service_level(void)
}
subsys_initcall(create_proc_service_level);
/*
* Bogomips calculation based on cpu capability.
*/
int get_cpu_capability(unsigned int *capability)
{
struct sysinfo_1_2_2 *info;
int rc;
info = (void *) get_zeroed_page(GFP_KERNEL);
if (!info)
return -ENOMEM;
rc = stsi(info, 1, 2, 2);
if (rc == -ENOSYS)
goto out;
rc = 0;
*capability = info->capability;
out:
free_page((unsigned long) info);
return rc;
}
/*
* CPU capability might have changed. Therefore recalculate loops_per_jiffy.
*/

2
arch/s390/lib/uaccess_mvcos.c
View File

@ -14,7 +14,7 @@
#include <asm/futex.h>
#include "uaccess.h"
#ifndef __s390x__
#ifndef CONFIG_64BIT
#define AHI "ahi"
#define ALR "alr"
#define CLR "clr"

2
arch/s390/lib/uaccess_std.c
View File

@ -15,7 +15,7 @@
#include <asm/futex.h>
#include "uaccess.h"
#ifndef __s390x__
#ifndef CONFIG_64BIT
#define AHI "ahi"
#define ALR "alr"
#define CLR "clr"

38
arch/s390/mm/maccess.c
View File

@ -101,19 +101,27 @@ int memcpy_real(void *dest, void *src, size_t count)
}
/*
* Copy memory to absolute zero
* Copy memory in absolute mode (kernel to kernel)
*/
void copy_to_absolute_zero(void *dest, void *src, size_t count)
void memcpy_absolute(void *dest, void *src, size_t count)
{
unsigned long cr0;
unsigned long cr0, flags, prefix;
BUG_ON((unsigned long) dest + count >= sizeof(struct _lowcore));
preempt_disable();
flags = arch_local_irq_save();
__ctl_store(cr0, 0, 0);
__ctl_clear_bit(0, 28); /* disable lowcore protection */
memcpy_real(dest + store_prefix(), src, count);
prefix = store_prefix();
if (prefix) {
local_mcck_disable();
set_prefix(0);
memcpy(dest, src, count);
set_prefix(prefix);
local_mcck_enable();
} else {
memcpy(dest, src, count);
}
__ctl_load(cr0, 0, 0);
preempt_enable();
arch_local_irq_restore(flags);
}
/*
@ -187,20 +195,6 @@ static int is_swapped(unsigned long addr)
return 0;
}
/*
* Return swapped prefix or zero page address
*/
static unsigned long get_swapped(unsigned long addr)
{
unsigned long prefix = store_prefix();
if (addr < sizeof(struct _lowcore))
return addr + prefix;
if (addr >= prefix && addr < prefix + sizeof(struct _lowcore))
return addr - prefix;
return addr;
}
/*
* Convert a physical pointer for /dev/mem access
*
@ -218,7 +212,7 @@ void *xlate_dev_mem_ptr(unsigned long addr)
size = PAGE_SIZE - (addr & ~PAGE_MASK);
bounce = (void *) __get_free_page(GFP_ATOMIC);
if (bounce)
memcpy_real(bounce, (void *) get_swapped(addr), size);
memcpy_absolute(bounce, (void *) addr, size);
}
preempt_enable();
put_online_cpus();

2
arch/s390/mm/vmem.c
View File

@ -109,7 +109,7 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro)
pte = mk_pte_phys(address, __pgprot(ro ? _PAGE_RO : 0));
pm_dir = pmd_offset(pu_dir, address);
#ifdef __s390x__
#ifdef CONFIG_64BIT
if (MACHINE_HAS_HPAGE && !(address & ~HPAGE_MASK) &&
(address + HPAGE_SIZE <= start + size) &&
(address >= HPAGE_SIZE)) {

2
arch/s390/oprofile/hwsampler.c
View File

@ -235,7 +235,7 @@ static void hws_ext_handler(struct ext_code ext_code,
if (!(param32 & CPU_MF_INT_SF_MASK))
return;
kstat_cpu(smp_processor_id()).irqs[EXTINT_CPM]++;
kstat_cpu(smp_processor_id()).irqs[EXTINT_CMS]++;
atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32);
if (hws_wq)

4
drivers/s390/block/dasd_int.h
View File

@ -10,8 +10,6 @@
#ifndef DASD_INT_H
#define DASD_INT_H
#ifdef __KERNEL__
/* we keep old device allocation scheme; IOW, minors are still in 0..255 */
#define DASD_PER_MAJOR (1U << (MINORBITS - DASD_PARTN_BITS))
#define DASD_PARTN_MASK ((1 << DASD_PARTN_BITS) - 1)
@ -791,6 +789,4 @@ static inline int dasd_eer_enabled(struct dasd_device *device)
#define dasd_eer_enabled(d) (0)
#endif /* CONFIG_DASD_ERR */
#endif /* __KERNEL__ */
#endif /* DASD_H */

2
drivers/s390/char/sclp_sdias.c
View File

@ -211,7 +211,7 @@ int sclp_sdias_copy(void *dest, int start_blk, int nr_blks)
sccb.evbuf.event_qual = EQ_STORE_DATA;
sccb.evbuf.data_id = DI_FCP_DUMP;
sccb.evbuf.event_id = 4712;
#ifdef __s390x__
#ifdef CONFIG_64BIT
sccb.evbuf.asa_size = ASA_SIZE_64;
#else
sccb.evbuf.asa_size = ASA_SIZE_32;