diff options
Diffstat (limited to 'arch/s390')
-rw-r--r-- | arch/s390/Kconfig | 1 | ||||
-rw-r--r-- | arch/s390/boot/compressed/vmlinux.lds.S | 2 | ||||
-rw-r--r-- | arch/s390/include/asm/cio.h | 2 | ||||
-rw-r--r-- | arch/s390/include/asm/perf_event.h | 2 | ||||
-rw-r--r-- | arch/s390/include/asm/pgtable.h | 35 | ||||
-rw-r--r-- | arch/s390/include/uapi/asm/chpid.h | 10 | ||||
-rw-r--r-- | arch/s390/include/uapi/asm/kvm_para.h | 11 | ||||
-rw-r--r-- | arch/s390/kernel/cache.c | 9 | ||||
-rw-r--r-- | arch/s390/kernel/head_kdump.S | 10 | ||||
-rw-r--r-- | arch/s390/kernel/perf_cpum_cf.c | 6 | ||||
-rw-r--r-- | arch/s390/kernel/sclp.S | 8 | ||||
-rw-r--r-- | arch/s390/kernel/vmlinux.lds.S | 2 | ||||
-rw-r--r-- | arch/s390/lib/uaccess_pt.c | 2 | ||||
-rw-r--r-- | arch/s390/mm/gup.c | 2 |
14 files changed, 66 insertions, 36 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 3f3d9ca7a5b..5dba755a43e 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -130,6 +130,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE select HAVE_UID16 if 32BIT select ARCH_WANT_IPC_PARSE_VERSION + select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT select GENERIC_SMP_IDLE_THREAD select GENERIC_TIME_VSYSCALL_OLD select GENERIC_CLOCKEVENTS diff --git a/arch/s390/boot/compressed/vmlinux.lds.S b/arch/s390/boot/compressed/vmlinux.lds.S index d80f79d8dd9..8e1fb823928 100644 --- a/arch/s390/boot/compressed/vmlinux.lds.S +++ b/arch/s390/boot/compressed/vmlinux.lds.S @@ -5,7 +5,7 @@ OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390") OUTPUT_ARCH(s390:64-bit) #else OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390") -OUTPUT_ARCH(s390) +OUTPUT_ARCH(s390:31-bit) #endif ENTRY(startup) diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index 55bde603521..ad2b924167d 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -9,6 +9,8 @@ #define LPM_ANYPATH 0xff #define __MAX_CSSID 0 +#define __MAX_SUBCHANNEL 65535 +#define __MAX_SSID 3 #include <asm/scsw.h> diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index 7941968e12b..5f0173a3169 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -9,7 +9,7 @@ #include <asm/cpu_mf.h> /* CPU-measurement counter facility */ -#define PERF_CPUM_CF_MAX_CTR 160 +#define PERF_CPUM_CF_MAX_CTR 256 /* Per-CPU flags for PMU states */ #define PMU_F_RESERVED 0x1000 diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index dd647c919a6..2d3b7cb2600 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -506,12 +506,15 @@ static inline int pud_bad(pud_t pud) static inline int pmd_present(pmd_t pmd) { - return (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN) != 0UL; + unsigned long mask = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO; + return (pmd_val(pmd) & mask) == _HPAGE_TYPE_NONE || + !(pmd_val(pmd) & _SEGMENT_ENTRY_INV); } static inline int pmd_none(pmd_t pmd) { - return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) != 0UL; + return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) && + !(pmd_val(pmd) & _SEGMENT_ENTRY_RO); } static inline int pmd_large(pmd_t pmd) @@ -1223,6 +1226,11 @@ static inline void __pmd_idte(unsigned long address, pmd_t *pmdp) } #ifdef CONFIG_TRANSPARENT_HUGEPAGE + +#define SEGMENT_NONE __pgprot(_HPAGE_TYPE_NONE) +#define SEGMENT_RO __pgprot(_HPAGE_TYPE_RO) +#define SEGMENT_RW __pgprot(_HPAGE_TYPE_RW) + #define __HAVE_ARCH_PGTABLE_DEPOSIT extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pgtable_t pgtable); @@ -1242,16 +1250,15 @@ static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, static inline unsigned long massage_pgprot_pmd(pgprot_t pgprot) { - unsigned long pgprot_pmd = 0; - - if (pgprot_val(pgprot) & _PAGE_INVALID) { - if (pgprot_val(pgprot) & _PAGE_SWT) - pgprot_pmd |= _HPAGE_TYPE_NONE; - pgprot_pmd |= _SEGMENT_ENTRY_INV; - } - if (pgprot_val(pgprot) & _PAGE_RO) - pgprot_pmd |= _SEGMENT_ENTRY_RO; - return pgprot_pmd; + /* + * pgprot is PAGE_NONE, PAGE_RO, or PAGE_RW (see __Pxxx / __Sxxx) + * Convert to segment table entry format. + */ + if (pgprot_val(pgprot) == pgprot_val(PAGE_NONE)) + return pgprot_val(SEGMENT_NONE); + if (pgprot_val(pgprot) == pgprot_val(PAGE_RO)) + return pgprot_val(SEGMENT_RO); + return pgprot_val(SEGMENT_RW); } static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot) @@ -1269,7 +1276,9 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd) static inline pmd_t pmd_mkwrite(pmd_t pmd) { - pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO; + /* Do not clobber _HPAGE_TYPE_NONE pages! */ + if (!(pmd_val(pmd) & _SEGMENT_ENTRY_INV)) + pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO; return pmd; } diff --git a/arch/s390/include/uapi/asm/chpid.h b/arch/s390/include/uapi/asm/chpid.h index 581992dfae2..6b4fb29cc19 100644 --- a/arch/s390/include/uapi/asm/chpid.h +++ b/arch/s390/include/uapi/asm/chpid.h @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2012 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ @@ -12,10 +12,10 @@ #define __MAX_CHPID 255 struct chp_id { - u8 reserved1; - u8 cssid; - u8 reserved2; - u8 id; + __u8 reserved1; + __u8 cssid; + __u8 reserved2; + __u8 id; } __attribute__((packed)); diff --git a/arch/s390/include/uapi/asm/kvm_para.h b/arch/s390/include/uapi/asm/kvm_para.h index e69de29bb2d..ff1f4e7b301 100644 --- a/arch/s390/include/uapi/asm/kvm_para.h +++ b/arch/s390/include/uapi/asm/kvm_para.h @@ -0,0 +1,11 @@ +/* + * User API definitions for paravirtual devices on s390 + * + * Copyright IBM Corp. 2008 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2 only) + * as published by the Free Software Foundation. + * + * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> + */ diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c index 8df8d8a19c9..64b24650e4f 100644 --- a/arch/s390/kernel/cache.c +++ b/arch/s390/kernel/cache.c @@ -59,8 +59,8 @@ enum { enum { CACHE_TI_UNIFIED = 0, - CACHE_TI_INSTRUCTION = 0, - CACHE_TI_DATA, + CACHE_TI_DATA = 0, + CACHE_TI_INSTRUCTION, }; struct cache_info { @@ -121,7 +121,10 @@ static int __init cache_add(int level, int private, int type) cache = kzalloc(sizeof(*cache), GFP_KERNEL); if (!cache) return -ENOMEM; - ti = type == CACHE_TYPE_DATA ? CACHE_TI_DATA : CACHE_TI_UNIFIED; + if (type == CACHE_TYPE_INSTRUCTION) + ti = CACHE_TI_INSTRUCTION; + else + ti = CACHE_TI_UNIFIED; cache->size = ecag(EXTRACT_SIZE, level, ti); cache->line_size = ecag(EXTRACT_LINE_SIZE, level, ti); cache->associativity = ecag(EXTRACT_ASSOCIATIVITY, level, ti); diff --git a/arch/s390/kernel/head_kdump.S b/arch/s390/kernel/head_kdump.S index acaaaf4b705..085a95eb315 100644 --- a/arch/s390/kernel/head_kdump.S +++ b/arch/s390/kernel/head_kdump.S @@ -85,16 +85,10 @@ .align 2 startup_kdump_relocated: basr %r13,0 -0: - mvc 0(8,%r0),.Lrestart_psw-0b(%r13) # Setup restart PSW - sam31 # Switch to 31 bit addr mode - sr %r1,%r1 # Erase register r1 - sr %r2,%r2 # Erase register r2 - sigp %r1,%r2,SIGP_SET_ARCHITECTURE # Switch to 31 bit arch mode - lpsw 0 # Start new kernel... +0: lpswe .Lrestart_psw-0b(%r13) # Start new kernel... .align 8 .Lrestart_psw: - .long 0x00080000,0x80000000 + startup + .quad 0x0000000080000000,0x0000000000000000 + startup #else .align 2 .Lep_startup_kdump: diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c index 9871b1971ed..c4e7269d4a0 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -94,7 +94,7 @@ static int get_counter_set(u64 event) set = CPUMF_CTR_SET_USER; else if (event < 128) set = CPUMF_CTR_SET_CRYPTO; - else if (event < 160) + else if (event < 256) set = CPUMF_CTR_SET_EXT; return set; @@ -138,6 +138,10 @@ static int validate_ctr_version(const struct hw_perf_event *hwc) case CPUMF_CTR_SET_EXT: if (cpuhw->info.csvn < 1) err = -EOPNOTSUPP; + if ((cpuhw->info.csvn == 1 && hwc->config > 159) || + (cpuhw->info.csvn == 2 && hwc->config > 175) || + (cpuhw->info.csvn > 2 && hwc->config > 255)) + err = -EOPNOTSUPP; break; } diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S index bf053898630..b6506ee32a3 100644 --- a/arch/s390/kernel/sclp.S +++ b/arch/s390/kernel/sclp.S @@ -44,6 +44,12 @@ _sclp_wait_int: #endif mvc .LoldpswS1-.LbaseS1(16,%r13),0(%r8) mvc 0(16,%r8),0(%r9) +#ifdef CONFIG_64BIT + epsw %r6,%r7 # set current addressing mode + nill %r6,0x1 # in new psw (31 or 64 bit mode) + nilh %r7,0x8000 + stm %r6,%r7,0(%r8) +#endif lhi %r6,0x0200 # cr mask for ext int (cr0.54) ltr %r2,%r2 jz .LsetctS1 @@ -87,7 +93,7 @@ _sclp_wait_int: .long 0x00080000, 0x80000000+.LwaitS1 # PSW to handle ext int #ifdef CONFIG_64BIT .LextpswS1_64: - .quad 0x0000000180000000, .LwaitS1 # PSW to handle ext int, 64 bit + .quad 0, .LwaitS1 # PSW to handle ext int, 64 bit #endif .LwaitpswS1: .long 0x010a0000, 0x00000000+.LloopS1 # PSW to wait for ext int diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index de8fa9bbd35..79cb51adc74 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -8,7 +8,7 @@ #ifndef CONFIG_64BIT OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390") -OUTPUT_ARCH(s390) +OUTPUT_ARCH(s390:31-bit) ENTRY(startup) jiffies = jiffies_64 + 4; #else diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index 2d37bb861fa..9017a63dda3 100644 --- a/arch/s390/lib/uaccess_pt.c +++ b/arch/s390/lib/uaccess_pt.c @@ -39,7 +39,7 @@ static __always_inline unsigned long follow_table(struct mm_struct *mm, pmd = pmd_offset(pud, addr); if (pmd_none(*pmd)) return -0x10UL; - if (pmd_huge(*pmd)) { + if (pmd_large(*pmd)) { if (write && (pmd_val(*pmd) & _SEGMENT_ENTRY_RO)) return -0x04UL; return (pmd_val(*pmd) & HPAGE_MASK) + (addr & ~HPAGE_MASK); diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c index 60acb93a468..8b8285310b5 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -126,7 +126,7 @@ static inline int gup_pmd_range(pud_t *pudp, pud_t pud, unsigned long addr, */ if (pmd_none(pmd) || pmd_trans_splitting(pmd)) return 0; - if (unlikely(pmd_huge(pmd))) { + if (unlikely(pmd_large(pmd))) { if (!gup_huge_pmd(pmdp, pmd, addr, next, write, pages, nr)) return 0; |