diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-07 22:50:50 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-07 22:50:50 (GMT) |
commit | fb5131e1880ea1ba3ba7197cd5cc66c9c288f715 (patch) | |
tree | f0d9f25f9079727b9ead5a2b4cc85a0fea9b4668 /arch/s390/include | |
parent | d074b104cefcb6e8ded55a53e62fed59a246f55d (diff) | |
parent | 8e1023016cf17152972b98bce6c144834a4916d5 (diff) | |
download | linux-fb5131e1880ea1ba3ba7197cd5cc66c9c288f715.tar.xz |
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (65 commits)
[S390] prevent unneccesary loops_per_jiffy recalculation
[S390] cpuinfo: use get_online_cpus() instead of preempt_disable()
[S390] smp: remove cpu hotplug messages
[S390] mutex: enable spinning mutex on s390
[S390] mutex: Introduce arch_mutex_cpu_relax()
[S390] cio: fix ccwgroup unregistration race condition
[S390] perf: add DWARF register lookup for s390
[S390] cleanup ftrace backend functions
[S390] ptrace cleanup
[S390] smp/idle: call init_idle() before starting a new cpu
[S390] smp: delay idle task creation
[S390] dasd: Correct retry counter for terminated I/O.
[S390] dasd: Add support for raw ECKD access.
[S390] dasd: Prevent deadlock during suspend/resume.
[S390] dasd: Improve handling of stolen DASD reservation
[S390] dasd: do path verification for paths added at runtime
[S390] dasd: add High Performance FICON multitrack support
[S390] cio: reduce memory consumption of itcw structures
[S390] nmi: enable machine checks early
[S390] qeth: buffer count imbalance
...
Diffstat (limited to 'arch/s390/include')
-rw-r--r-- | arch/s390/include/asm/ccwdev.h | 2 | ||||
-rw-r--r-- | arch/s390/include/asm/cputime.h | 2 | ||||
-rw-r--r-- | arch/s390/include/asm/dasd.h | 3 | ||||
-rw-r--r-- | arch/s390/include/asm/ftrace.h | 11 | ||||
-rw-r--r-- | arch/s390/include/asm/hardirq.h | 16 | ||||
-rw-r--r-- | arch/s390/include/asm/irq.h | 34 | ||||
-rw-r--r-- | arch/s390/include/asm/kprobes.h | 20 | ||||
-rw-r--r-- | arch/s390/include/asm/processor.h | 4 | ||||
-rw-r--r-- | arch/s390/include/asm/ptrace.h | 52 | ||||
-rw-r--r-- | arch/s390/include/asm/qdio.h | 1 | ||||
-rw-r--r-- | arch/s390/include/asm/s390_ext.h | 29 | ||||
-rw-r--r-- | arch/s390/include/asm/smp.h | 3 | ||||
-rw-r--r-- | arch/s390/include/asm/system.h | 4 | ||||
-rw-r--r-- | arch/s390/include/asm/thread_info.h | 10 | ||||
-rw-r--r-- | arch/s390/include/asm/timex.h | 20 |
15 files changed, 125 insertions, 86 deletions
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index e850111..ff6f62e 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -204,6 +204,8 @@ int ccw_device_tm_start_timeout(struct ccw_device *, struct tcw *, unsigned long, u8, int); int ccw_device_tm_intrg(struct ccw_device *cdev); +int ccw_device_get_mdc(struct ccw_device *cdev, u8 mask); + extern int ccw_device_set_online(struct ccw_device *cdev); extern int ccw_device_set_offline(struct ccw_device *cdev); diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h index 40e2ab0..0814348 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -202,7 +202,7 @@ static inline void s390_idle_check(struct pt_regs *regs, __u64 int_clock, static inline int s390_nohz_delay(int cpu) { - return per_cpu(s390_idle, cpu).nohz_delay != 0; + return __get_cpu_var(s390_idle).nohz_delay != 0; } #define arch_needs_cpu(cpu) s390_nohz_delay(cpu) diff --git a/arch/s390/include/asm/dasd.h b/arch/s390/include/asm/dasd.h index b604a91..0be28ef 100644 --- a/arch/s390/include/asm/dasd.h +++ b/arch/s390/include/asm/dasd.h @@ -73,6 +73,7 @@ typedef struct dasd_information2_t { * 0x02: use diag discipline (diag) * 0x04: set the device initially online (internal use only) * 0x08: enable ERP related logging + * 0x20: give access to raw eckd data */ #define DASD_FEATURE_DEFAULT 0x00 #define DASD_FEATURE_READONLY 0x01 @@ -80,6 +81,8 @@ typedef struct dasd_information2_t { #define DASD_FEATURE_INITIAL_ONLINE 0x04 #define DASD_FEATURE_ERPLOG 0x08 #define DASD_FEATURE_FAILFAST 0x10 +#define DASD_FEATURE_FAILONSLCK 0x20 +#define DASD_FEATURE_USERAW 0x40 #define DASD_PARTN_BITS 2 diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index 96c14a9..3c29be4 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -4,20 +4,17 @@ #ifndef __ASSEMBLY__ extern void _mcount(void); -extern unsigned long ftrace_dyn_func; struct dyn_arch_ftrace { }; #define MCOUNT_ADDR ((long)_mcount) #ifdef CONFIG_64BIT -#define MCOUNT_OFFSET_RET 18 -#define MCOUNT_INSN_SIZE 24 -#define MCOUNT_OFFSET 14 -#else -#define MCOUNT_OFFSET_RET 26 -#define MCOUNT_INSN_SIZE 30 +#define MCOUNT_INSN_SIZE 12 #define MCOUNT_OFFSET 8 +#else +#define MCOUNT_INSN_SIZE 20 +#define MCOUNT_OFFSET 4 #endif static inline unsigned long ftrace_call_adjust(unsigned long addr) diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h index 881d945..e4155d3 100644 --- a/arch/s390/include/asm/hardirq.h +++ b/arch/s390/include/asm/hardirq.h @@ -21,20 +21,4 @@ #define HARDIRQ_BITS 8 -void clock_comparator_work(void); - -static inline unsigned long long local_tick_disable(void) -{ - unsigned long long old; - - old = S390_lowcore.clock_comparator; - S390_lowcore.clock_comparator = -1ULL; - return old; -} - -static inline void local_tick_enable(unsigned long long comp) -{ - S390_lowcore.clock_comparator = comp; -} - #endif /* __ASM_HARDIRQ_H */ diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index 7da991a..db14a31 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -1,23 +1,33 @@ #ifndef _ASM_IRQ_H #define _ASM_IRQ_H -#ifdef __KERNEL__ #include <linux/hardirq.h> -/* - * the definition of irqs has changed in 2.5.46: - * NR_IRQS is no longer the number of i/o - * interrupts (65536), but rather the number - * of interrupt classes (2). - * Only external and i/o interrupts make much sense here (CH). - */ - enum interruption_class { EXTERNAL_INTERRUPT, IO_INTERRUPT, - + EXTINT_CLK, + EXTINT_IPI, + EXTINT_TMR, + EXTINT_TLA, + EXTINT_PFL, + EXTINT_DSD, + EXTINT_VRT, + EXTINT_SCP, + EXTINT_IUC, + IOINT_QAI, + IOINT_QDI, + IOINT_DAS, + IOINT_C15, + IOINT_C70, + IOINT_TAP, + IOINT_VMR, + IOINT_LCS, + IOINT_CLW, + IOINT_CTC, + IOINT_APB, + NMI_NMI, NR_IRQS, }; -#endif /* __KERNEL__ */ -#endif +#endif /* _ASM_IRQ_H */ diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h index 330f68c..a231a94 100644 --- a/arch/s390/include/asm/kprobes.h +++ b/arch/s390/include/asm/kprobes.h @@ -31,7 +31,6 @@ #include <linux/ptrace.h> #include <linux/percpu.h> -#define __ARCH_WANT_KPROBES_INSN_SLOT struct pt_regs; struct kprobe; @@ -58,23 +57,12 @@ typedef u16 kprobe_opcode_t; /* Architecture specific copy of original instruction */ struct arch_specific_insn { /* copy of original instruction */ - kprobe_opcode_t *insn; - int fixup; - int ilen; - int reg; + kprobe_opcode_t insn[MAX_INSN_SIZE]; }; -struct ins_replace_args { - kprobe_opcode_t *ptr; - kprobe_opcode_t old; - kprobe_opcode_t new; -}; struct prev_kprobe { struct kprobe *kp; unsigned long status; - unsigned long saved_psw; - unsigned long kprobe_saved_imask; - unsigned long kprobe_saved_ctl[3]; }; /* per-cpu kprobe control block */ @@ -82,17 +70,13 @@ struct kprobe_ctlblk { unsigned long kprobe_status; unsigned long kprobe_saved_imask; unsigned long kprobe_saved_ctl[3]; - struct pt_regs jprobe_saved_regs; - unsigned long jprobe_saved_r14; - unsigned long jprobe_saved_r15; struct prev_kprobe prev_kprobe; + struct pt_regs jprobe_saved_regs; kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; }; void arch_remove_kprobe(struct kprobe *p); void kretprobe_trampoline(void); -int is_prohibited_opcode(kprobe_opcode_t *instruction); -void get_instruction_type(struct arch_specific_insn *ainsn); int kprobe_fault_handler(struct pt_regs *regs, int trapnr); int kprobe_exceptions_notify(struct notifier_block *self, diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 8d6f871..bf3de04 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -32,7 +32,6 @@ static inline void get_cpu_id(struct cpuid *ptr) } extern void s390_adjust_jiffies(void); -extern void print_cpu_info(void); extern int get_cpu_capability(unsigned int *); /* @@ -81,7 +80,8 @@ struct thread_struct { mm_segment_t mm_segment; unsigned long prot_addr; /* address of protection-excep. */ unsigned int trap_no; - per_struct per_info; + struct per_regs per_user; /* User specified PER registers */ + struct per_event per_event; /* Cause of the last PER trap */ /* 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 d9d42b1..9ad628a 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -331,10 +331,60 @@ struct pt_regs unsigned short ilc; unsigned short svcnr; }; + +/* + * Program event recording (PER) register set. + */ +struct per_regs { + unsigned long control; /* PER control bits */ + unsigned long start; /* PER starting address */ + unsigned long end; /* PER ending address */ +}; + +/* + * PER event contains information about the cause of the last PER exception. + */ +struct per_event { + unsigned short cause; /* PER code, ATMID and AI */ + unsigned long address; /* PER address */ + unsigned char paid; /* PER access identification */ +}; + +/* + * Simplified per_info structure used to decode the ptrace user space ABI. + */ +struct per_struct_kernel { + unsigned long cr9; /* PER control bits */ + unsigned long cr10; /* PER starting address */ + unsigned long cr11; /* PER ending address */ + unsigned long bits; /* Obsolete software bits */ + unsigned long starting_addr; /* User specified start address */ + unsigned long ending_addr; /* User specified end address */ + unsigned short perc_atmid; /* PER trap ATMID */ + unsigned long address; /* PER trap instruction address */ + unsigned char access_id; /* PER trap access identification */ +}; + +#define PER_EVENT_MASK 0xE9000000UL + +#define PER_EVENT_BRANCH 0x80000000UL +#define PER_EVENT_IFETCH 0x40000000UL +#define PER_EVENT_STORE 0x20000000UL +#define PER_EVENT_STORE_REAL 0x08000000UL +#define PER_EVENT_NULLIFICATION 0x01000000UL + +#define PER_CONTROL_MASK 0x00a00000UL + +#define PER_CONTROL_BRANCH_ADDRESS 0x00800000UL +#define PER_CONTROL_ALTERATION 0x00200000UL + #endif /* - * Now for the program event recording (trace) definitions. + * Now for the user space program event recording (trace) definitions. + * The following structures are used only for the ptrace interface, don't + * touch or even look at it if you don't want to modify the user-space + * ptrace interface. In particular stay away from it for in-kernel PER. */ typedef struct { diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 46e96bc..350e7ee 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -361,6 +361,7 @@ struct qdio_initialize { qdio_handler_t *input_handler; qdio_handler_t *output_handler; void (*queue_start_poll) (struct ccw_device *, int, unsigned long); + int scan_threshold; unsigned long int_parm; void **input_sbal_addr_array; void **output_sbal_addr_array; diff --git a/arch/s390/include/asm/s390_ext.h b/arch/s390/include/asm/s390_ext.h index 1a9307e..080876d 100644 --- a/arch/s390/include/asm/s390_ext.h +++ b/arch/s390/include/asm/s390_ext.h @@ -1,32 +1,17 @@ -#ifndef _S390_EXTINT_H -#define _S390_EXTINT_H - /* - * include/asm-s390/s390_ext.h - * - * S390 version - * Copyright IBM Corp. 1999,2007 - * Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com), - * Martin Schwidefsky (schwidefsky@de.ibm.com) + * Copyright IBM Corp. 1999,2010 + * Author(s): Holger Smolinski <Holger.Smolinski@de.ibm.com>, + * Martin Schwidefsky <schwidefsky@de.ibm.com>, */ +#ifndef _S390_EXTINT_H +#define _S390_EXTINT_H + #include <linux/types.h> typedef void (*ext_int_handler_t)(unsigned int, unsigned int, unsigned long); -typedef struct ext_int_info_t { - struct ext_int_info_t *next; - ext_int_handler_t handler; - __u16 code; -} ext_int_info_t; - -extern ext_int_info_t *ext_int_hash[]; - int register_external_interrupt(__u16 code, ext_int_handler_t handler); -int register_early_external_interrupt(__u16 code, ext_int_handler_t handler, - ext_int_info_t *info); int unregister_external_interrupt(__u16 code, ext_int_handler_t handler); -int unregister_early_external_interrupt(__u16 code, ext_int_handler_t handler, - ext_int_info_t *info); -#endif +#endif /* _S390_EXTINT_H */ diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index edc03cb..045e009f 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -20,7 +20,6 @@ extern void machine_power_off_smp(void); extern int __cpu_disable (void); extern void __cpu_die (unsigned int cpu); -extern void cpu_die (void) __attribute__ ((noreturn)); extern int __cpu_up (unsigned int cpu); extern struct mutex smp_cpu_state_mutex; @@ -71,8 +70,10 @@ static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data) #ifdef CONFIG_HOTPLUG_CPU extern int smp_rescan_cpus(void); +extern void __noreturn cpu_die(void); #else static inline int smp_rescan_cpus(void) { return 0; } +static inline void cpu_die(void) { } #endif #endif /* __ASM_SMP_H */ diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h index 3ad16db..6710b0e 100644 --- a/arch/s390/include/asm/system.h +++ b/arch/s390/include/asm/system.h @@ -20,6 +20,7 @@ struct task_struct; extern struct task_struct *__switch_to(void *, void *); +extern void update_per_regs(struct task_struct *task); static inline void save_fp_regs(s390_fp_regs *fpregs) { @@ -93,6 +94,7 @@ static inline void restore_access_regs(unsigned int *acrs) if (next->mm) { \ restore_fp_regs(&next->thread.fp_regs); \ restore_access_regs(&next->thread.acrs[0]); \ + update_per_regs(next); \ } \ prev = __switch_to(prev,next); \ } while (0) @@ -101,11 +103,9 @@ extern void account_vtime(struct task_struct *, struct task_struct *); extern void account_tick_vtime(struct task_struct *); #ifdef CONFIG_PFAULT -extern void pfault_irq_init(void); extern int pfault_init(void); extern void pfault_fini(void); #else /* CONFIG_PFAULT */ -#define pfault_irq_init() do { } while (0) #define pfault_init() ({-1;}) #define pfault_fini() do { } while (0) #endif /* CONFIG_PFAULT */ diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 5baf023..ebc7709 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -74,7 +74,7 @@ struct thread_info { /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) { - return (struct thread_info *)(S390_lowcore.kernel_stack - THREAD_SIZE); + return (struct thread_info *) S390_lowcore.thread_info; } #define THREAD_SIZE_ORDER THREAD_ORDER @@ -88,7 +88,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ #define TIF_RESTART_SVC 4 /* restart svc with new svc number */ -#define TIF_SINGLE_STEP 6 /* deliver sigtrap on return to user */ +#define TIF_PER_TRAP 6 /* deliver sigtrap on return to user */ #define TIF_MCCK_PENDING 7 /* machine check handling is pending */ #define TIF_SYSCALL_TRACE 8 /* syscall trace active */ #define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */ @@ -99,14 +99,15 @@ static inline struct thread_info *current_thread_info(void) #define TIF_31BIT 17 /* 32bit process */ #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ #define TIF_RESTORE_SIGMASK 19 /* restore signal mask in do_signal() */ -#define TIF_FREEZE 20 /* thread is freezing for suspend */ +#define TIF_SINGLE_STEP 20 /* This task is single stepped */ +#define TIF_FREEZE 21 /* thread is freezing for suspend */ #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) #define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) #define _TIF_RESTART_SVC (1<<TIF_RESTART_SVC) -#define _TIF_SINGLE_STEP (1<<TIF_SINGLE_STEP) +#define _TIF_PER_TRAP (1<<TIF_PER_TRAP) #define _TIF_MCCK_PENDING (1<<TIF_MCCK_PENDING) #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) @@ -114,6 +115,7 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) #define _TIF_31BIT (1<<TIF_31BIT) +#define _TIF_SINGLE_STEP (1<<TIF_FREEZE) #define _TIF_FREEZE (1<<TIF_FREEZE) #endif /* __KERNEL__ */ diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index 09d345a..88829a4 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -11,6 +11,8 @@ #ifndef _ASM_S390_TIMEX_H #define _ASM_S390_TIMEX_H +#include <asm/lowcore.h> + /* The value of the TOD clock for 1.1.1970. */ #define TOD_UNIX_EPOCH 0x7d91048bca000000ULL @@ -49,6 +51,24 @@ static inline void store_clock_comparator(__u64 *time) asm volatile("stckc %0" : "=Q" (*time)); } +void clock_comparator_work(void); + +static inline unsigned long long local_tick_disable(void) +{ + unsigned long long old; + + old = S390_lowcore.clock_comparator; + S390_lowcore.clock_comparator = -1ULL; + set_clock_comparator(S390_lowcore.clock_comparator); + return old; +} + +static inline void local_tick_enable(unsigned long long comp) +{ + S390_lowcore.clock_comparator = comp; + set_clock_comparator(S390_lowcore.clock_comparator); +} + #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ typedef unsigned long long cycles_t; |