diff options
Diffstat (limited to 'arch/s390/include/asm')
26 files changed, 258 insertions, 236 deletions
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild index 42e512ba8b43..287d7bbb6d36 100644 --- a/arch/s390/include/asm/Kbuild +++ b/arch/s390/include/asm/Kbuild @@ -5,6 +5,7 @@ header-y += chsc.h header-y += cmb.h header-y += dasd.h header-y += debug.h +header-y += kvm_virtio.h header-y += monwriter.h header-y += qeth.h header-y += schid.h diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index f3ba0fa98de6..e8501115eca8 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -92,6 +92,16 @@ struct ccw_device { }; /* + * Possible events used by the path_event notifier. + */ +#define PE_NONE 0x0 +#define PE_PATH_GONE 0x1 /* A path is no longer available. */ +#define PE_PATH_AVAILABLE 0x2 /* A path has become available and + was successfully verified. */ +#define PE_PATHGROUP_ESTABLISHED 0x4 /* A pathgroup was reset and had + to be established again. */ + +/* * Possible CIO actions triggered by the unit check handler. */ enum uc_todo { @@ -109,6 +119,7 @@ enum uc_todo { * @set_online: called when setting device online * @set_offline: called when setting device offline * @notify: notify driver of device state changes + * @path_event: notify driver of channel path events * @shutdown: called at device shutdown * @prepare: prepare for pm state transition * @complete: undo work done in @prepare @@ -127,6 +138,7 @@ struct ccw_driver { int (*set_online) (struct ccw_device *); int (*set_offline) (struct ccw_device *); int (*notify) (struct ccw_device *, int); + void (*path_event) (struct ccw_device *, int *); void (*shutdown) (struct ccw_device *); int (*prepare) (struct ccw_device *); void (*complete) (struct ccw_device *); diff --git a/arch/s390/include/asm/cpu.h b/arch/s390/include/asm/cpu.h index 471234b90574..e0b69540216f 100644 --- a/arch/s390/include/asm/cpu.h +++ b/arch/s390/include/asm/cpu.h @@ -20,7 +20,7 @@ struct cpuid unsigned int ident : 24; unsigned int machine : 16; unsigned int unused : 16; -} __packed; +} __attribute__ ((packed, aligned(8))); #endif /* __ASSEMBLY__ */ #endif /* _ASM_S390_CPU_H */ diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h index 8b1a52a137c5..40e2ab0fa3f0 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -73,18 +73,18 @@ cputime64_to_jiffies64(cputime64_t cputime) } /* - * Convert cputime to milliseconds and back. + * Convert cputime to microseconds and back. */ static inline unsigned int -cputime_to_msecs(const cputime_t cputime) +cputime_to_usecs(const cputime_t cputime) { - return cputime_div(cputime, 4096000); + return cputime_div(cputime, 4096); } static inline cputime_t -msecs_to_cputime(const unsigned int m) +usecs_to_cputime(const unsigned int m) { - return (cputime_t) m * 4096000; + return (cputime_t) m * 4096; } /* diff --git a/arch/s390/include/asm/dasd.h b/arch/s390/include/asm/dasd.h index 218bce81ec70..b604a9186f8e 100644 --- a/arch/s390/include/asm/dasd.h +++ b/arch/s390/include/asm/dasd.h @@ -217,6 +217,25 @@ typedef struct dasd_symmio_parms { int rssd_result_len; } __attribute__ ((packed)) dasd_symmio_parms_t; +/* + * Data returned by Sense Path Group ID (SNID) + */ +struct dasd_snid_data { + struct { + __u8 group:2; + __u8 reserve:2; + __u8 mode:1; + __u8 res:3; + } __attribute__ ((packed)) path_state; + __u8 pgid[11]; +} __attribute__ ((packed)); + +struct dasd_snid_ioctl_data { + struct dasd_snid_data data; + __u8 path_mask; +} __attribute__ ((packed)); + + /******************************************************************************** * SECTION: Definition of IOCTLs * @@ -261,25 +280,10 @@ typedef struct dasd_symmio_parms { /* Set Attributes (cache operations) */ #define BIODASDSATTR _IOW(DASD_IOCTL_LETTER,2,attrib_data_t) +/* Get Sense Path Group ID (SNID) data */ +#define BIODASDSNID _IOWR(DASD_IOCTL_LETTER, 1, struct dasd_snid_ioctl_data) + #define BIODASDSYMMIO _IOWR(DASD_IOCTL_LETTER, 240, dasd_symmio_parms_t) #endif /* DASD_H */ -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 4 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -4 - * c-argdecl-indent: 4 - * c-label-offset: -4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: 0 - * indent-tabs-mode: nil - * tab-width: 8 - * End: - */ diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h index 498bc3892385..881d94590aeb 100644 --- a/arch/s390/include/asm/hardirq.h +++ b/arch/s390/include/asm/hardirq.h @@ -12,10 +12,6 @@ #ifndef __ASM_HARDIRQ_H #define __ASM_HARDIRQ_H -#include <linux/threads.h> -#include <linux/sched.h> -#include <linux/cache.h> -#include <linux/interrupt.h> #include <asm/lowcore.h> #define local_softirq_pending() (S390_lowcore.softirq_pending) diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index bb8343d157bc..b56403c2df28 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -37,32 +37,6 @@ static inline int prepare_hugepage_range(struct file *file, int arch_prepare_hugepage(struct page *page); void arch_release_hugepage(struct page *page); -static inline pte_t pte_mkhuge(pte_t pte) -{ - /* - * PROT_NONE needs to be remapped from the pte type to the ste type. - * The HW invalid bit is also different for pte and ste. The pte - * invalid bit happens to be the same as the ste _SEGMENT_ENTRY_LARGE - * bit, so we don't have to clear it. - */ - if (pte_val(pte) & _PAGE_INVALID) { - if (pte_val(pte) & _PAGE_SWT) - pte_val(pte) |= _HPAGE_TYPE_NONE; - pte_val(pte) |= _SEGMENT_ENTRY_INV; - } - /* - * Clear SW pte bits SWT and SWX, there are no SW bits in a segment - * table entry. - */ - pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX); - /* - * Also set the change-override bit because we don't need dirty bit - * tracking for hugetlbfs pages. - */ - pte_val(pte) |= (_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO); - return pte; -} - static inline pte_t huge_pte_wrprotect(pte_t pte) { pte_val(pte) |= _PAGE_RO; diff --git a/arch/s390/include/asm/ioctls.h b/arch/s390/include/asm/ioctls.h index 2f3d8736361f..960a4c1ebdf1 100644 --- a/arch/s390/include/asm/ioctls.h +++ b/arch/s390/include/asm/ioctls.h @@ -1,94 +1,8 @@ -/* - * include/asm-s390/ioctls.h - * - * S390 version - * - * Derived from "include/asm-i386/ioctls.h" - */ - #ifndef __ARCH_S390_IOCTLS_H__ #define __ARCH_S390_IOCTLS_H__ -#include <asm/ioctl.h> - -/* 0x54 is just a magic number to make these relatively unique ('T') */ - -#define TCGETS 0x5401 -#define TCSETS 0x5402 -#define TCSETSW 0x5403 -#define TCSETSF 0x5404 -#define TCGETA 0x5405 -#define TCSETA 0x5406 -#define TCSETAW 0x5407 -#define TCSETAF 0x5408 -#define TCSBRK 0x5409 -#define TCXONC 0x540A -#define TCFLSH 0x540B -#define TIOCEXCL 0x540C -#define TIOCNXCL 0x540D -#define TIOCSCTTY 0x540E -#define TIOCGPGRP 0x540F -#define TIOCSPGRP 0x5410 -#define TIOCOUTQ 0x5411 -#define TIOCSTI 0x5412 -#define TIOCGWINSZ 0x5413 -#define TIOCSWINSZ 0x5414 -#define TIOCMGET 0x5415 -#define TIOCMBIS 0x5416 -#define TIOCMBIC 0x5417 -#define TIOCMSET 0x5418 -#define TIOCGSOFTCAR 0x5419 -#define TIOCSSOFTCAR 0x541A -#define FIONREAD 0x541B -#define TIOCINQ FIONREAD -#define TIOCLINUX 0x541C -#define TIOCCONS 0x541D -#define TIOCGSERIAL 0x541E -#define TIOCSSERIAL 0x541F -#define TIOCPKT 0x5420 -#define FIONBIO 0x5421 -#define TIOCNOTTY 0x5422 -#define TIOCSETD 0x5423 -#define TIOCGETD 0x5424 -#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */ -#define TIOCSBRK 0x5427 /* BSD compatibility */ -#define TIOCCBRK 0x5428 /* BSD compatibility */ -#define TIOCGSID 0x5429 /* Return the session ID of FD */ -#define TCGETS2 _IOR('T',0x2A, struct termios2) -#define TCSETS2 _IOW('T',0x2B, struct termios2) -#define TCSETSW2 _IOW('T',0x2C, struct termios2) -#define TCSETSF2 _IOW('T',0x2D, struct termios2) -#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ -#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ -#define TIOCSIG _IOW('T',0x36, int) /* Generate signal on Pty slave */ - -#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */ -#define FIOCLEX 0x5451 -#define FIOASYNC 0x5452 -#define TIOCSERCONFIG 0x5453 -#define TIOCSERGWILD 0x5454 -#define TIOCSERSWILD 0x5455 -#define TIOCGLCKTRMIOS 0x5456 -#define TIOCSLCKTRMIOS 0x5457 -#define TIOCSERGSTRUCT 0x5458 /* For debugging only */ -#define TIOCSERGETLSR 0x5459 /* Get line status register */ -#define TIOCSERGETMULTI 0x545A /* Get multiport config */ -#define TIOCSERSETMULTI 0x545B /* Set multiport config */ - -#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */ -#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */ #define FIOQSIZE 0x545E -/* Used for packet mode */ -#define TIOCPKT_DATA 0 -#define TIOCPKT_FLUSHREAD 1 -#define TIOCPKT_FLUSHWRITE 2 -#define TIOCPKT_STOP 4 -#define TIOCPKT_START 8 -#define TIOCPKT_NOSTOP 16 -#define TIOCPKT_DOSTOP 32 -#define TIOCPKT_IOCTL 64 - -#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */ +#include <asm-generic/ioctls.h> #endif diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h index 15b3ac253898..865d6d891ace 100644 --- a/arch/s390/include/asm/irqflags.h +++ b/arch/s390/include/asm/irqflags.h @@ -8,8 +8,8 @@ #include <linux/types.h> -/* store then or system mask. */ -#define __raw_local_irq_stosm(__or) \ +/* store then OR system mask. */ +#define __arch_local_irq_stosm(__or) \ ({ \ unsigned long __mask; \ asm volatile( \ @@ -18,8 +18,8 @@ __mask; \ }) -/* store then and system mask. */ -#define __raw_local_irq_stnsm(__and) \ +/* store then AND system mask. */ +#define __arch_local_irq_stnsm(__and) \ ({ \ unsigned long __mask; \ asm volatile( \ @@ -29,39 +29,44 @@ }) /* set system mask. */ -#define __raw_local_irq_ssm(__mask) \ -({ \ - asm volatile("ssm %0" : : "Q" (__mask) : "memory"); \ -}) +static inline void __arch_local_irq_ssm(unsigned long flags) +{ + asm volatile("ssm %0" : : "Q" (flags) : "memory"); +} -/* interrupt control.. */ -static inline unsigned long raw_local_irq_enable(void) +static inline unsigned long arch_local_save_flags(void) { - return __raw_local_irq_stosm(0x03); + return __arch_local_irq_stosm(0x00); } -static inline unsigned long raw_local_irq_disable(void) +static inline unsigned long arch_local_irq_save(void) { - return __raw_local_irq_stnsm(0xfc); + return __arch_local_irq_stnsm(0xfc); } -#define raw_local_save_flags(x) \ -do { \ - typecheck(unsigned long, x); \ - (x) = __raw_local_irq_stosm(0x00); \ -} while (0) +static inline void arch_local_irq_disable(void) +{ + arch_local_irq_save(); +} -static inline void raw_local_irq_restore(unsigned long flags) +static inline void arch_local_irq_enable(void) { - __raw_local_irq_ssm(flags); + __arch_local_irq_stosm(0x03); } -static inline int raw_irqs_disabled_flags(unsigned long flags) +static inline void arch_local_irq_restore(unsigned long flags) +{ + __arch_local_irq_ssm(flags); +} + +static inline bool arch_irqs_disabled_flags(unsigned long flags) { return !(flags & (3UL << (BITS_PER_LONG - 8))); } -/* For spinlocks etc */ -#define raw_local_irq_save(x) ((x) = raw_local_irq_disable()) +static inline bool arch_irqs_disabled(void) +{ + return arch_irqs_disabled_flags(arch_local_save_flags()); +} #endif /* __ASM_IRQFLAGS_H */ diff --git a/arch/s390/include/asm/kvm_virtio.h b/arch/s390/include/asm/kvm_virtio.h index acdfdff26611..72f614181eff 100644 --- a/arch/s390/include/asm/kvm_virtio.h +++ b/arch/s390/include/asm/kvm_virtio.h @@ -54,4 +54,11 @@ struct kvm_vqconfig { * This is pagesize for historical reasons. */ #define KVM_S390_VIRTIO_RING_ALIGN 4096 + +/* These values are supposed to be in ext_params on an interrupt */ +#define VIRTIO_PARAM_MASK 0xff +#define VIRTIO_PARAM_VRING_INTERRUPT 0x0 +#define VIRTIO_PARAM_CONFIG_CHANGED 0x1 +#define VIRTIO_PARAM_DEV_ADD 0x2 + #endif diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h index 0f97ef2d92ac..65e172f8209d 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -150,9 +150,10 @@ struct _lowcore { */ __u32 ipib; /* 0x0e00 */ __u32 ipib_checksum; /* 0x0e04 */ + __u8 pad_0x0e08[0x0f00-0x0e08]; /* 0x0e08 */ - /* Align to the top 1k of prefix area */ - __u8 pad_0x0e08[0x1000-0x0e08]; /* 0x0e08 */ + /* Extended facility list */ + __u64 stfle_fac_list[32]; /* 0x0f00 */ } __packed; #else /* CONFIG_32BIT */ @@ -285,7 +286,11 @@ struct _lowcore { */ __u64 ipib; /* 0x0e00 */ __u32 ipib_checksum; /* 0x0e08 */ - __u8 pad_0x0e0c[0x11b8-0x0e0c]; /* 0x0e0c */ + __u8 pad_0x0e0c[0x0f00-0x0e0c]; /* 0x0e0c */ + + /* Extended facility list */ + __u64 stfle_fac_list[32]; /* 0x0f00 */ + __u8 pad_0x1000[0x11b8-0x1000]; /* 0x1000 */ /* 64 bit extparam used for pfault/diag 250: defined by architecture */ __u64 ext_params2; /* 0x11B8 */ diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index af650fb47206..a8729ea7e9ac 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -108,9 +108,13 @@ typedef pte_t *pgtable_t; #define __pgprot(x) ((pgprot_t) { (x) } ) static inline void -page_set_storage_key(unsigned long addr, unsigned int skey) +page_set_storage_key(unsigned long addr, unsigned int skey, int mapped) { - asm volatile("sske %0,%1" : : "d" (skey), "a" (addr)); + if (!mapped) + asm volatile(".insn rrf,0xb22b0000,%0,%1,8,0" + : : "d" (skey), "a" (addr)); + else + asm volatile("sske %0,%1" : : "d" (skey), "a" (addr)); } static inline unsigned int diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index 3840cbe77637..a75f168d2718 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -4,7 +4,6 @@ * Copyright 2009 Martin Schwidefsky, IBM Corporation. */ -static inline void set_perf_event_pending(void) {} -static inline void clear_perf_event_pending(void) {} +/* Empty, just to avoid compiling error */ #define PERF_EVENT_INDEX_OFFSET 0 diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index 68940d0bad91..082eb4e50e8b 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -21,9 +21,11 @@ unsigned long *crst_table_alloc(struct mm_struct *, int); void crst_table_free(struct mm_struct *, unsigned long *); +void crst_table_free_rcu(struct mm_struct *, unsigned long *); unsigned long *page_table_alloc(struct mm_struct *); void page_table_free(struct mm_struct *, unsigned long *); +void page_table_free_rcu(struct mm_struct *, unsigned long *); void disable_noexec(struct mm_struct *, struct task_struct *); static inline void clear_table(unsigned long *s, unsigned long val, size_t n) @@ -176,4 +178,6 @@ static inline void pmd_populate(struct mm_struct *mm, #define pte_free_kernel(mm, pte) page_table_free(mm, (unsigned long *) pte) #define pte_free(mm, pte) page_table_free(mm, (unsigned long *) pte) +extern void rcu_table_freelist_finish(void); + #endif /* _S390_PGALLOC_H */ diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 3157441ee1da..02ace3491c51 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -38,6 +38,7 @@ extern pgd_t swapper_pg_dir[] __attribute__ ((aligned (4096))); extern void paging_init(void); extern void vmem_map_init(void); +extern void fault_init(void); /* * The S390 doesn't have any external MMU info: the kernel page @@ -46,11 +47,27 @@ extern void vmem_map_init(void); #define update_mmu_cache(vma, address, ptep) do { } while (0) /* - * ZERO_PAGE is a global shared page that is always zero: used + * ZERO_PAGE is a global shared page that is always zero; used * for zero-mapped memory areas etc.. */ -extern char empty_zero_page[PAGE_SIZE]; -#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) + +extern unsigned long empty_zero_page; +extern unsigned long zero_page_mask; + +#define ZERO_PAGE(vaddr) \ + (virt_to_page((void *)(empty_zero_page + \ + (((unsigned long)(vaddr)) &zero_page_mask)))) + +#define is_zero_pfn is_zero_pfn +static inline int is_zero_pfn(unsigned long pfn) +{ + extern unsigned long zero_pfn; + unsigned long offset_from_zero_pfn = pfn - zero_pfn; + return offset_from_zero_pfn <= (zero_page_mask >> PAGE_SHIFT); +} + +#define my_zero_pfn(addr) page_to_pfn(ZERO_PAGE(addr)) + #endif /* !__ASSEMBLY__ */ /* @@ -300,6 +317,7 @@ extern unsigned long VMALLOC_START; /* Bits in the segment table entry */ #define _SEGMENT_ENTRY_ORIGIN 0x7fffffc0UL /* page table origin */ +#define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */ #define _SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ #define _SEGMENT_ENTRY_COMMON 0x10 /* common segment bit */ #define _SEGMENT_ENTRY_PTL 0x0f /* page table length */ @@ -572,7 +590,7 @@ static inline void rcp_unlock(pte_t *ptep) } /* forward declaration for SetPageUptodate in page-flags.h*/ -static inline void page_clear_dirty(struct page *page); +static inline void page_clear_dirty(struct page *page, int mapped); #include <linux/page-flags.h> static inline void ptep_rcp_copy(pte_t *ptep) @@ -754,6 +772,34 @@ static inline pte_t pte_mkspecial(pte_t pte) return pte; } +#ifdef CONFIG_HUGETLB_PAGE +static inline pte_t pte_mkhuge(pte_t pte) +{ + /* + * PROT_NONE needs to be remapped from the pte type to the ste type. + * The HW invalid bit is also different for pte and ste. The pte + * invalid bit happens to be the same as the ste _SEGMENT_ENTRY_LARGE + * bit, so we don't have to clear it. + */ + if (pte_val(pte) & _PAGE_INVALID) { + if (pte_val(pte) & _PAGE_SWT) + pte_val(pte) |= _HPAGE_TYPE_NONE; + pte_val(pte) |= _SEGMENT_ENTRY_INV; + } + /* + * Clear SW pte bits SWT and SWX, there are no SW bits in a segment + * table entry. + */ + pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX); + /* + * Also set the change-override bit because we don't need dirty bit + * tracking for hugetlbfs pages. + */ + pte_val(pte) |= (_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO); + return pte; +} +#endif + #ifdef CONFIG_PGSTE /* * Get (and clear) the user dirty bit for a PTE. @@ -782,7 +828,7 @@ static inline int kvm_s390_test_and_clear_page_dirty(struct mm_struct *mm, } dirty = test_and_clear_bit_simple(KVM_UD_BIT, pgste); if (skey & _PAGE_CHANGED) - page_clear_dirty(page); + page_clear_dirty(page, 1); rcp_unlock(ptep); return dirty; } @@ -957,9 +1003,9 @@ static inline int page_test_dirty(struct page *page) } #define __HAVE_ARCH_PAGE_CLEAR_DIRTY -static inline void page_clear_dirty(struct page *page) +static inline void page_clear_dirty(struct page *page, int mapped) { - page_set_storage_key(page_to_phys(page), PAGE_DEFAULT_KEY); + page_set_storage_key(page_to_phys(page), PAGE_DEFAULT_KEY, mapped); } /* @@ -1048,9 +1094,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) #define pte_offset(pmd, addr) ((pte_t *) pmd_deref(*(pmd)) + pte_index(addr)) #define pte_offset_kernel(pmd, address) pte_offset(pmd,address) #define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address) -#define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address) #define pte_unmap(pte) do { } while (0) -#define pte_unmap_nested(pte) do { } while (0) /* * 31 bit swap entry format: diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 73e259834e10..8d6f87169577 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -82,8 +82,6 @@ struct thread_struct { unsigned long prot_addr; /* address of protection-excep. */ unsigned int trap_no; per_struct per_info; - /* Used to give failing instruction back to user for ieee exceptions */ - unsigned long ieee_instruction_pointer; /* pfault_wait is used to block the process on a pfault event */ unsigned long pfault_wait; }; diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index e2c218dc68a6..d9d42b1e46fa 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -481,8 +481,7 @@ struct user_regs_struct * watchpoints. This is the way intel does it. */ per_struct per_info; - unsigned long ieee_instruction_pointer; - /* Used to give failing instruction back to user for ieee exceptions */ + unsigned long ieee_instruction_pointer; /* obsolete, always 0 */ }; #ifdef __KERNEL__ diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 2ba630276295..46e96bc1f5a1 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -360,6 +360,7 @@ struct qdio_initialize { unsigned int no_output_qs; qdio_handler_t *input_handler; qdio_handler_t *output_handler; + void (*queue_start_poll) (struct ccw_device *, int, unsigned long); unsigned long int_parm; void **input_sbal_addr_array; void **output_sbal_addr_array; @@ -377,11 +378,13 @@ struct qdio_initialize { extern int qdio_allocate(struct qdio_initialize *); extern int qdio_establish(struct qdio_initialize *); extern int qdio_activate(struct ccw_device *); - -extern int do_QDIO(struct ccw_device *cdev, unsigned int callflags, - int q_nr, unsigned int bufnr, unsigned int count); -extern int qdio_shutdown(struct ccw_device*, int); +extern int do_QDIO(struct ccw_device *, unsigned int, int, unsigned int, + unsigned int); +extern int qdio_start_irq(struct ccw_device *, int); +extern int qdio_stop_irq(struct ccw_device *, int); +extern int qdio_get_next_buffers(struct ccw_device *, int, int *, int *); +extern int qdio_shutdown(struct ccw_device *, int); extern int qdio_free(struct ccw_device *); -extern int qdio_get_ssqd_desc(struct ccw_device *dev, struct qdio_ssqd_desc*); +extern int qdio_get_ssqd_desc(struct ccw_device *, struct qdio_ssqd_desc *); #endif /* __QDIO_H__ */ diff --git a/arch/s390/include/asm/s390_ext.h b/arch/s390/include/asm/s390_ext.h index 2afc060266a2..1a9307e70842 100644 --- a/arch/s390/include/asm/s390_ext.h +++ b/arch/s390/include/asm/s390_ext.h @@ -12,7 +12,7 @@ #include <linux/types.h> -typedef void (*ext_int_handler_t)(__u16 code); +typedef void (*ext_int_handler_t)(unsigned int, unsigned int, unsigned long); typedef struct ext_int_info_t { struct ext_int_info_t *next; diff --git a/arch/s390/include/asm/scatterlist.h b/arch/s390/include/asm/scatterlist.h index 35d786fe93ae..6d45ef6c12a7 100644 --- a/arch/s390/include/asm/scatterlist.h +++ b/arch/s390/include/asm/scatterlist.h @@ -1 +1,3 @@ #include <asm-generic/scatterlist.h> + +#define ARCH_HAS_SG_CHAIN diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 25e831d58e1e..d5e2ef10537d 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -73,6 +73,7 @@ extern unsigned int user_mode; #define MACHINE_FLAG_PFMF (1UL << 11) #define MACHINE_FLAG_LPAR (1UL << 12) #define MACHINE_FLAG_SPP (1UL << 13) +#define MACHINE_FLAG_TOPOLOGY (1UL << 14) #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) @@ -90,6 +91,7 @@ extern unsigned int user_mode; #define MACHINE_HAS_HPAGE (0) #define MACHINE_HAS_PFMF (0) #define MACHINE_HAS_SPP (0) +#define MACHINE_HAS_TOPOLOGY (0) #else /* __s390x__ */ #define MACHINE_HAS_IEEE (1) #define MACHINE_HAS_CSP (1) @@ -100,6 +102,7 @@ extern unsigned int user_mode; #define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE) #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__ */ #define ZFCPDUMP_HSA_SIZE (32UL<<20) diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index 8429686951f9..5c0246b955d8 100644 --- a/arch/s390/include/asm/syscall.h +++ b/arch/s390/include/asm/syscall.h @@ -65,8 +65,6 @@ static inline void syscall_get_arguments(struct task_struct *task, if (test_tsk_thread_flag(task, TIF_31BIT)) mask = 0xffffffff; #endif - if (i + n == 6) - args[--n] = regs->args[0] & mask; while (n-- > 0) if (i + n > 0) args[n] = regs->gprs[2 + i + n] & mask; @@ -80,8 +78,6 @@ static inline void syscall_set_arguments(struct task_struct *task, const unsigned long *args) { BUG_ON(i + n > 6); - if (i + n == 6) - regs->args[0] = args[--n]; while (n-- > 0) if (i + n > 0) regs->gprs[2 + i + n] = args[n]; diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h index 22bdb2a0ee5f..79d3d6e2e9c5 100644 --- a/arch/s390/include/asm/sysinfo.h +++ b/arch/s390/include/asm/sysinfo.h @@ -14,8 +14,13 @@ #ifndef __ASM_S390_SYSINFO_H #define __ASM_S390_SYSINFO_H +#include <asm/bitsperlong.h> + struct sysinfo_1_1_1 { - char reserved_0[32]; + unsigned short :16; + unsigned char ccr; + unsigned char cai; + char reserved_0[28]; char manufacturer[16]; char type[4]; char reserved_1[12]; @@ -104,6 +109,39 @@ struct sysinfo_3_2_2 { char reserved_544[3552]; }; +#define TOPOLOGY_CPU_BITS 64 +#define TOPOLOGY_NR_MAG 6 + +struct topology_cpu { + unsigned char reserved0[4]; + unsigned char :6; + unsigned char pp:2; + unsigned char reserved1; + unsigned short origin; + unsigned long mask[TOPOLOGY_CPU_BITS / BITS_PER_LONG]; +}; + +struct topology_container { + unsigned char reserved[7]; + unsigned char id; +}; + +union topology_entry { + unsigned char nl; + struct topology_cpu cpu; + struct topology_container container; +}; + +struct sysinfo_15_1_x { + unsigned char reserved0[2]; + unsigned short length; + unsigned char mag[TOPOLOGY_NR_MAG]; + unsigned char reserved1; + unsigned char mnest; + unsigned char reserved2[4]; + union topology_entry tle[0]; +}; + static inline int stsi(void *sysinfo, int fc, int sel1, int sel2) { register int r0 asm("0") = (fc << 28) | sel1; diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h index cef66210c846..3ad16dbf622e 100644 --- a/arch/s390/include/asm/system.h +++ b/arch/s390/include/asm/system.h @@ -85,19 +85,20 @@ static inline void restore_access_regs(unsigned int *acrs) asm volatile("lam 0,15,%0" : : "Q" (*acrs)); } -#define switch_to(prev,next,last) do { \ - if (prev == next) \ - break; \ - save_fp_regs(&prev->thread.fp_regs); \ - restore_fp_regs(&next->thread.fp_regs); \ - save_access_regs(&prev->thread.acrs[0]); \ - restore_access_regs(&next->thread.acrs[0]); \ - prev = __switch_to(prev,next); \ +#define switch_to(prev,next,last) do { \ + if (prev->mm) { \ + save_fp_regs(&prev->thread.fp_regs); \ + save_access_regs(&prev->thread.acrs[0]); \ + } \ + if (next->mm) { \ + restore_fp_regs(&next->thread.fp_regs); \ + restore_access_regs(&next->thread.acrs[0]); \ + } \ + prev = __switch_to(prev,next); \ } while (0) extern void account_vtime(struct task_struct *, struct task_struct *); extern void account_tick_vtime(struct task_struct *); -extern void account_system_vtime(struct task_struct *); #ifdef CONFIG_PFAULT extern void pfault_irq_init(void); @@ -399,7 +400,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr, static inline void __set_psw_mask(unsigned long mask) { - __load_psw_mask(mask | (__raw_local_irq_stosm(0x00) & ~(-1UL >> 8))); + __load_psw_mask(mask | (arch_local_save_flags() & ~(-1UL >> 8))); } #define local_mcck_enable() __set_psw_mask(psw_kernel_bits) @@ -419,30 +420,21 @@ extern void smp_ctl_clear_bit(int cr, int bit); #endif /* CONFIG_SMP */ -static inline unsigned int stfl(void) -{ - asm volatile( - " .insn s,0xb2b10000,0(0)\n" /* stfl */ - "0:\n" - EX_TABLE(0b,0b)); - return S390_lowcore.stfl_fac_list; -} +#define MAX_FACILITY_BIT (256*8) /* stfle_fac_list has 256 bytes */ -static inline int __stfle(unsigned long long *list, int doublewords) +/* + * The test_facility function uses the bit odering where the MSB is bit 0. + * That makes it easier to query facility bits with the bit number as + * documented in the Principles of Operation. + */ +static inline int test_facility(unsigned long nr) { - typedef struct { unsigned long long _[doublewords]; } addrtype; - register unsigned long __nr asm("0") = doublewords - 1; - - asm volatile(".insn s,0xb2b00000,%0" /* stfle */ - : "=m" (*(addrtype *) list), "+d" (__nr) : : "cc"); - return __nr + 1; -} + unsigned char *ptr; -static inline int stfle(unsigned long long *list, int doublewords) -{ - if (!(stfl() & (1UL << 24))) - return -EOPNOTSUPP; - return __stfle(list, doublewords); + if (nr >= MAX_FACILITY_BIT) + return 0; + ptr = (unsigned char *) &S390_lowcore.stfle_fac_list + (nr >> 3); + return (*ptr & (0x80 >> (nr & 7))) != 0; } static inline unsigned short stap(void) diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index fd1c00d08bf5..f1f644f2240a 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -64,10 +64,9 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb, if (!tlb->fullmm && (tlb->nr_ptes > 0 || tlb->nr_pxds < TLB_NR_PTRS)) __tlb_flush_mm(tlb->mm); while (tlb->nr_ptes > 0) - pte_free(tlb->mm, tlb->array[--tlb->nr_ptes]); + page_table_free_rcu(tlb->mm, tlb->array[--tlb->nr_ptes]); while (tlb->nr_pxds < TLB_NR_PTRS) - /* pgd_free frees the pointer as region or segment table */ - pgd_free(tlb->mm, tlb->array[tlb->nr_pxds++]); + crst_table_free_rcu(tlb->mm, tlb->array[tlb->nr_pxds++]); } static inline void tlb_finish_mmu(struct mmu_gather *tlb, @@ -75,6 +74,8 @@ static inline void tlb_finish_mmu(struct mmu_gather *tlb, { tlb_flush_mmu(tlb, start, end); + rcu_table_freelist_finish(); + /* keep the page table cache within bounds */ check_pgt_cache(); @@ -103,7 +104,7 @@ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, if (tlb->nr_ptes >= tlb->nr_pxds) tlb_flush_mmu(tlb, 0, 0); } else - pte_free(tlb->mm, pte); + page_table_free(tlb->mm, (unsigned long *) pte); } /* @@ -124,7 +125,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, if (tlb->nr_ptes >= tlb->nr_pxds) tlb_flush_mmu(tlb, 0, 0); } else - pmd_free(tlb->mm, pmd); + crst_table_free(tlb->mm, (unsigned long *) pmd); #endif } @@ -146,7 +147,7 @@ static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, if (tlb->nr_ptes >= tlb->nr_pxds) tlb_flush_mmu(tlb, 0, 0); } else - pud_free(tlb->mm, pud); + crst_table_free(tlb->mm, (unsigned long *) pud); #endif } diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 831bd033ea77..c5338834ddbd 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -2,19 +2,38 @@ #define _ASM_S390_TOPOLOGY_H #include <linux/cpumask.h> - -#define mc_capable() (1) - -const struct cpumask *cpu_coregroup_mask(unsigned int cpu); +#include <asm/sysinfo.h> extern unsigned char cpu_core_id[NR_CPUS]; extern cpumask_t cpu_core_map[NR_CPUS]; +static inline const struct cpumask *cpu_coregroup_mask(unsigned int cpu) +{ + return &cpu_core_map[cpu]; +} + #define topology_core_id(cpu) (cpu_core_id[cpu]) #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) +#define mc_capable() (1) + +#ifdef CONFIG_SCHED_BOOK + +extern unsigned char cpu_book_id[NR_CPUS]; +extern cpumask_t cpu_book_map[NR_CPUS]; + +static inline const struct cpumask *cpu_book_mask(unsigned int cpu) +{ + return &cpu_book_map[cpu]; +} + +#define topology_book_id(cpu) (cpu_book_id[cpu]) +#define topology_book_cpumask(cpu) (&cpu_book_map[cpu]) + +#endif /* CONFIG_SCHED_BOOK */ int topology_set_cpu_management(int fc); void topology_schedule_update(void); +void store_topology(struct sysinfo_15_1_x *info); #define POLARIZATION_UNKNWN (-1) #define POLARIZATION_HRZ (0) @@ -30,6 +49,8 @@ static inline void s390_init_cpu_topology(void) }; #endif +#define SD_BOOK_INIT SD_CPU_INIT + #include <asm-generic/topology.h> #endif /* _ASM_S390_TOPOLOGY_H */ |