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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-07 14:50:50 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-07 14:50:50 -0800
commitfb5131e1880ea1ba3ba7197cd5cc66c9c288f715 (patch)
treef0d9f25f9079727b9ead5a2b4cc85a0fea9b4668 /arch/s390/include
parentd074b104cefcb6e8ded55a53e62fed59a246f55d (diff)
parent8e1023016cf17152972b98bce6c144834a4916d5 (diff)
downloadlinux-linaro-android-fb5131e1880ea1ba3ba7197cd5cc66c9c288f715.tar.gz
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.h2
-rw-r--r--arch/s390/include/asm/cputime.h2
-rw-r--r--arch/s390/include/asm/dasd.h3
-rw-r--r--arch/s390/include/asm/ftrace.h11
-rw-r--r--arch/s390/include/asm/hardirq.h16
-rw-r--r--arch/s390/include/asm/irq.h34
-rw-r--r--arch/s390/include/asm/kprobes.h20
-rw-r--r--arch/s390/include/asm/processor.h4
-rw-r--r--arch/s390/include/asm/ptrace.h52
-rw-r--r--arch/s390/include/asm/qdio.h1
-rw-r--r--arch/s390/include/asm/s390_ext.h29
-rw-r--r--arch/s390/include/asm/smp.h3
-rw-r--r--arch/s390/include/asm/system.h4
-rw-r--r--arch/s390/include/asm/thread_info.h10
-rw-r--r--arch/s390/include/asm/timex.h20
15 files changed, 125 insertions, 86 deletions
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h
index e8501115eca..ff6f62e0ec3 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 40e2ab0fa3f..08143487829 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 b604a9186f8..0be28efe5b6 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 96c14a9102b..3c29be4836e 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 881d94590ae..e4155d3eb2c 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 7da991a858f..db14a311f1d 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 330f68caffe..a231a9439c4 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 8d6f8716957..bf3de04170a 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 d9d42b1e46f..9ad628a8574 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 46e96bc1f5a..350e7ee5952 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 1a9307e7084..080876d5f19 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 edc03cb9cd7..045e009fc16 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 3ad16dbf622..6710b0eac16 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 5baf0230b29..ebc77091466 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 09d345a701d..88829a40af6 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;