Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (36 commits)
  [S390] Remove code duplication from monreader / dcssblk.
  [S390] kernel: show last breaking-event-address on oops
  [S390] lowcore: Change type of lowcores softirq_pending to __u32.
  [S390] zcrypt: Comments and kernel-doc cleanup
  [S390] uaccess: Always access the correct address space.
  [S390] Fix a lot of sparse warnings.
  [S390] Convert s390 to GENERIC_CLOCKEVENTS.
  [S390] genirq/clockevents: move irq affinity prototypes/inlines to interrupt.h
  [S390] Convert monitor calls to function calls.
  [S390] qdio (new feature): enhancing info-retrieval from QDIO-adapters
  [S390] replace remaining __FUNCTION__ occurrences
  [S390] remove redundant display of free swap space in show_mem()
  [S390] qdio: remove outdated developerworks link.
  [S390] Add debug_register_mode() function to debug feature API
  [S390] crypto: use more descriptive function names for init/exit routines.
  [S390] switch sched_clock to store-clock-extended.
  [S390] zcrypt: add support for large random numbers
  [S390] hw_random: allow rng_dev_read() to return hardware errors.
  [S390] Vertical cpu management.
  [S390] cpu topology support for s390.
  ...

15 files changed, 231 insertions, 39 deletions

diff --git a/include/asm-s390/cio.h b/include/asm-s390/cio.h
index 123b557c3ff..0818ecd30ca 100644
--- a/include/asm-s390/cio.h
+++ b/include/asm-s390/cio.h
@@ -397,6 +397,10 @@ struct cio_iplinfo {
 
 extern int cio_get_iplinfo(struct cio_iplinfo *iplinfo);
 
+/* Function from drivers/s390/cio/chsc.c */
+int chsc_sstpc(void *page, unsigned int op, u16 ctrl);
+int chsc_sstpi(void *page, void *result, size_t size);
+
 #endif
 
 #endif
diff --git a/include/asm-s390/cpu.h b/include/asm-s390/cpu.h
index 352dde194f3..e5a6a9ba3ad 100644
--- a/include/asm-s390/cpu.h
+++ b/include/asm-s390/cpu.h
@@ -22,4 +22,12 @@ struct s390_idle_data {
 
 DECLARE_PER_CPU(struct s390_idle_data, s390_idle);
 
+void s390_idle_leave(void);
+
+static inline void s390_idle_check(void)
+{
+	if ((&__get_cpu_var(s390_idle))->in_idle)
+		s390_idle_leave();
+}
+
 #endif /* _ASM_S390_CPU_H_ */
diff --git a/include/asm-s390/debug.h b/include/asm-s390/debug.h
index c00dd2b3dc5..335baf4fc64 100644
--- a/include/asm-s390/debug.h
+++ b/include/asm-s390/debug.h
@@ -73,6 +73,7 @@ typedef struct debug_info {
 	struct dentry* debugfs_entries[DEBUG_MAX_VIEWS];
 	struct debug_view* views[DEBUG_MAX_VIEWS];	
 	char name[DEBUG_MAX_NAME_LEN];
+	mode_t mode;
 } debug_info_t;
 
 typedef int (debug_header_proc_t) (debug_info_t* id,
@@ -122,6 +123,10 @@ debug_entry_t* debug_exception_common(debug_info_t* id, int level,
 debug_info_t* debug_register(char* name, int pages, int nr_areas,
                              int buf_size);
 
+debug_info_t *debug_register_mode(char *name, int pages, int nr_areas,
+				  int buf_size, mode_t mode, uid_t uid,
+				  gid_t gid);
+
 void debug_unregister(debug_info_t* id);
 
 void debug_set_level(debug_info_t* id, int new_level);
diff --git a/include/asm-s390/extmem.h b/include/asm-s390/extmem.h
index c8802c934b7..33837d75618 100644
--- a/include/asm-s390/extmem.h
+++ b/include/asm-s390/extmem.h
@@ -22,11 +22,12 @@
 #define SEGMENT_SHARED 0
 #define SEGMENT_EXCLUSIVE 1
 
-extern int segment_load (char *name,int segtype,unsigned long *addr,unsigned long *length);
-extern void segment_unload(char *name);
-extern void segment_save(char *name);
-extern int segment_type (char* name);
-extern int segment_modify_shared (char *name, int do_nonshared);
+int segment_load (char *name, int segtype, unsigned long *addr, unsigned long *length);
+void segment_unload(char *name);
+void segment_save(char *name);
+int segment_type (char* name);
+int segment_modify_shared (char *name, int do_nonshared);
+void segment_warning(int rc, char *seg_name);
 
 #endif
 #endif
diff --git a/include/asm-s390/hardirq.h b/include/asm-s390/hardirq.h
index 31beb18cb3d..4b7cb964ff3 100644
--- a/include/asm-s390/hardirq.h
+++ b/include/asm-s390/hardirq.h
@@ -32,6 +32,6 @@ typedef struct {
 
 #define HARDIRQ_BITS	8
 
-extern void account_ticks(u64 time);
+void clock_comparator_work(void);
 
 #endif /* __ASM_HARDIRQ_H */
diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h
index 801a6fd35b5..5de3efb3144 100644
--- a/include/asm-s390/lowcore.h
+++ b/include/asm-s390/lowcore.h
@@ -56,6 +56,8 @@
 #define __LC_IO_INT_WORD                0x0C0
 #define __LC_MCCK_CODE                  0x0E8
 
+#define __LC_LAST_BREAK 		0x110
+
 #define __LC_RETURN_PSW                 0x200
 
 #define __LC_SAVE_AREA                  0xC00
@@ -80,7 +82,6 @@
 #define __LC_CPUID                      0xC60
 #define __LC_CPUADDR                    0xC68
 #define __LC_IPLDEV                     0xC7C
-#define __LC_JIFFY_TIMER		0xC80
 #define __LC_CURRENT			0xC90
 #define __LC_INT_CLOCK			0xC98
 #else /* __s390x__ */
@@ -103,7 +104,6 @@
 #define __LC_CPUID			0xD80
 #define __LC_CPUADDR			0xD88
 #define __LC_IPLDEV                     0xDB8
-#define __LC_JIFFY_TIMER		0xDC0
 #define __LC_CURRENT			0xDD8
 #define __LC_INT_CLOCK			0xDE8
 #endif /* __s390x__ */
@@ -276,7 +276,7 @@ struct _lowcore
 	/* entry.S sensitive area end */
 
         /* SMP info area: defined by DJB */
-        __u64        jiffy_timer;              /* 0xc80 */
+	__u64	     clock_comparator;	       /* 0xc80 */
 	__u32        ext_call_fast;            /* 0xc88 */
 	__u32        percpu_offset;            /* 0xc8c */
 	__u32        current_task;	       /* 0xc90 */
@@ -368,11 +368,12 @@ struct _lowcore
 	/* entry.S sensitive area end */
 
         /* SMP info area: defined by DJB */
-        __u64        jiffy_timer;              /* 0xdc0 */
+	__u64	     clock_comparator;	       /* 0xdc0 */
 	__u64        ext_call_fast;            /* 0xdc8 */
 	__u64        percpu_offset;            /* 0xdd0 */
 	__u64        current_task;	       /* 0xdd8 */
-	__u64        softirq_pending;	       /* 0xde0 */
+	__u32	     softirq_pending;	       /* 0xde0 */
+	__u32	     pad_0x0de4;	       /* 0xde4 */
 	__u64        int_clock;                /* 0xde8 */
         __u8         pad12[0xe00-0xdf0];       /* 0xdf0 */
 
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h
index 51d88912aa2..8eaf343a12a 100644
--- a/include/asm-s390/processor.h
+++ b/include/asm-s390/processor.h
@@ -175,6 +175,13 @@ extern void task_show_regs(struct seq_file *m, struct task_struct *task);
 extern void show_registers(struct pt_regs *regs);
 extern void show_code(struct pt_regs *regs);
 extern void show_trace(struct task_struct *task, unsigned long *sp);
+#ifdef CONFIG_64BIT
+extern void show_last_breaking_event(struct pt_regs *regs);
+#else
+static inline void show_last_breaking_event(struct pt_regs *regs)
+{
+}
+#endif
 
 unsigned long get_wchan(struct task_struct *p);
 #define task_pt_regs(tsk) ((struct pt_regs *) \
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index c7b74326a52..6f3821a6a90 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -90,6 +90,9 @@ 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;
+extern int smp_cpu_polarization[];
+
 extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
 	void *info, int wait);
 #endif
diff --git a/include/asm-s390/sysinfo.h b/include/asm-s390/sysinfo.h
new file mode 100644
index 00000000000..abe10ae15e4
--- /dev/null
+++ b/include/asm-s390/sysinfo.h
@@ -0,0 +1,116 @@
+/*
+ * definition for store system information stsi
+ *
+ * Copyright IBM Corp. 2001,2008
+ *
+ * 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): Ulrich Weigand <weigand@de.ibm.com>
+ *		 Christian Borntraeger <borntraeger@de.ibm.com>
+ */
+
+struct sysinfo_1_1_1 {
+	char reserved_0[32];
+	char manufacturer[16];
+	char type[4];
+	char reserved_1[12];
+	char model_capacity[16];
+	char sequence[16];
+	char plant[4];
+	char model[16];
+	char model_perm_cap[16];
+	char model_temp_cap[16];
+	char model_cap_rating[4];
+	char model_perm_cap_rating[4];
+	char model_temp_cap_rating[4];
+};
+
+struct sysinfo_1_2_1 {
+	char reserved_0[80];
+	char sequence[16];
+	char plant[4];
+	char reserved_1[2];
+	unsigned short cpu_address;
+};
+
+struct sysinfo_1_2_2 {
+	char format;
+	char reserved_0[1];
+	unsigned short acc_offset;
+	char reserved_1[24];
+	unsigned int secondary_capability;
+	unsigned int capability;
+	unsigned short cpus_total;
+	unsigned short cpus_configured;
+	unsigned short cpus_standby;
+	unsigned short cpus_reserved;
+	unsigned short adjustment[0];
+};
+
+struct sysinfo_1_2_2_extension {
+	unsigned int alt_capability;
+	unsigned short alt_adjustment[0];
+};
+
+struct sysinfo_2_2_1 {
+	char reserved_0[80];
+	char sequence[16];
+	char plant[4];
+	unsigned short cpu_id;
+	unsigned short cpu_address;
+};
+
+struct sysinfo_2_2_2 {
+	char reserved_0[32];
+	unsigned short lpar_number;
+	char reserved_1;
+	unsigned char characteristics;
+	unsigned short cpus_total;
+	unsigned short cpus_configured;
+	unsigned short cpus_standby;
+	unsigned short cpus_reserved;
+	char name[8];
+	unsigned int caf;
+	char reserved_2[16];
+	unsigned short cpus_dedicated;
+	unsigned short cpus_shared;
+};
+
+#define LPAR_CHAR_DEDICATED	(1 << 7)
+#define LPAR_CHAR_SHARED	(1 << 6)
+#define LPAR_CHAR_LIMITED	(1 << 5)
+
+struct sysinfo_3_2_2 {
+	char reserved_0[31];
+	unsigned char count;
+	struct {
+		char reserved_0[4];
+		unsigned short cpus_total;
+		unsigned short cpus_configured;
+		unsigned short cpus_standby;
+		unsigned short cpus_reserved;
+		char name[8];
+		unsigned int caf;
+		char cpi[16];
+		char reserved_1[24];
+
+	} vm[8];
+};
+
+static inline int stsi(void *sysinfo, int fc, int sel1, int sel2)
+{
+	register int r0 asm("0") = (fc << 28) | sel1;
+	register int r1 asm("1") = sel2;
+
+	asm volatile(
+		"   stsi 0(%2)\n"
+		"0: jz   2f\n"
+		"1: lhi  %0,%3\n"
+		"2:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (r0) : "d" (r1), "a" (sysinfo), "K" (-ENOSYS)
+		: "cc", "memory");
+	return r0;
+}
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
index 15aba30601a..92098df4d6e 100644
--- a/include/asm-s390/system.h
+++ b/include/asm-s390/system.h
@@ -406,6 +406,8 @@ __set_psw_mask(unsigned long mask)
 #define local_mcck_enable()  __set_psw_mask(psw_kernel_bits)
 #define local_mcck_disable() __set_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK)
 
+int stfle(unsigned long long *list, int doublewords);
+
 #ifdef CONFIG_SMP
 
 extern void smp_ctl_set_bit(int cr, int bit);
diff --git a/include/asm-s390/timex.h b/include/asm-s390/timex.h
index 98229db2431..d744c3d62de 100644
--- a/include/asm-s390/timex.h
+++ b/include/asm-s390/timex.h
@@ -62,16 +62,18 @@ static inline unsigned long long get_clock (void)
 	return clk;
 }
 
-static inline void get_clock_extended(void *dest)
+static inline unsigned long long get_clock_xt(void)
 {
-	typedef struct { unsigned long long clk[2]; } __clock_t;
+	unsigned char clk[16];
 
 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-	asm volatile("stcke %0" : "=Q" (*((__clock_t *)dest)) : : "cc");
+	asm volatile("stcke %0" : "=Q" (clk) : : "cc");
 #else /* __GNUC__ */
-	asm volatile("stcke 0(%1)" : "=m" (*((__clock_t *)dest))
-				   : "a" ((__clock_t *)dest) : "cc");
+	asm volatile("stcke 0(%1)" : "=m" (clk)
+				   : "a" (clk) : "cc");
 #endif /* __GNUC__ */
+
+	return *((unsigned long long *)&clk[1]);
 }
 
 static inline cycles_t get_cycles(void)
@@ -81,5 +83,6 @@ static inline cycles_t get_cycles(void)
 
 int get_sync_clock(unsigned long long *clock);
 void init_cpu_timer(void);
+unsigned long long monotonic_clock(void);
 
 #endif
diff --git a/include/asm-s390/tlbflush.h b/include/asm-s390/tlbflush.h
index 35fb4f9127b..9e57a93d7de 100644
--- a/include/asm-s390/tlbflush.h
+++ b/include/asm-s390/tlbflush.h
@@ -13,12 +13,14 @@ static inline void __tlb_flush_local(void)
 	asm volatile("ptlb" : : : "memory");
 }
 
+#ifdef CONFIG_SMP
 /*
  * Flush all tlb entries on all cpus.
  */
+void smp_ptlb_all(void);
+
 static inline void __tlb_flush_global(void)
 {
-	extern void smp_ptlb_all(void);
 	register unsigned long reg2 asm("2");
 	register unsigned long reg3 asm("3");
 	register unsigned long reg4 asm("4");
@@ -39,6 +41,25 @@ static inline void __tlb_flush_global(void)
 		: : "d" (reg2), "d" (reg3), "d" (reg4), "m" (dummy) : "cc" );
 }
 
+static inline void __tlb_flush_full(struct mm_struct *mm)
+{
+	cpumask_t local_cpumask;
+
+	preempt_disable();
+	/*
+	 * If the process only ran on the local cpu, do a local flush.
+	 */
+	local_cpumask = cpumask_of_cpu(smp_processor_id());
+	if (cpus_equal(mm->cpu_vm_mask, local_cpumask))
+		__tlb_flush_local();
+	else
+		__tlb_flush_global();
+	preempt_enable();
+}
+#else
+#define __tlb_flush_full(mm)	__tlb_flush_local()
+#endif
+
 /*
  * Flush all tlb entries of a page table on all cpus.
  */
@@ -51,8 +72,6 @@ static inline void __tlb_flush_idte(unsigned long asce)
 
 static inline void __tlb_flush_mm(struct mm_struct * mm)
 {
-	cpumask_t local_cpumask;
-
 	if (unlikely(cpus_empty(mm->cpu_vm_mask)))
 		return;
 	/*
@@ -69,16 +88,7 @@ static inline void __tlb_flush_mm(struct mm_struct * mm)
 				 mm->context.asce_bits);
 		return;
 	}
-	preempt_disable();
-	/*
-	 * If the process only ran on the local cpu, do a local flush.
-	 */
-	local_cpumask = cpumask_of_cpu(smp_processor_id());
-	if (cpus_equal(mm->cpu_vm_mask, local_cpumask))
-		__tlb_flush_local();
-	else
-		__tlb_flush_global();
-	preempt_enable();
+	__tlb_flush_full(mm);
 }
 
 static inline void __tlb_flush_mm_cond(struct mm_struct * mm)
diff --git a/include/asm-s390/topology.h b/include/asm-s390/topology.h
index 613aa64019d..8e97b06f298 100644
--- a/include/asm-s390/topology.h
+++ b/include/asm-s390/topology.h
@@ -1,6 +1,29 @@
 #ifndef _ASM_S390_TOPOLOGY_H
 #define _ASM_S390_TOPOLOGY_H
 
+#include <linux/cpumask.h>
+
+#define mc_capable()	(1)
+
+cpumask_t cpu_coregroup_map(unsigned int cpu);
+
+int topology_set_cpu_management(int fc);
+void topology_schedule_update(void);
+
+#define POLARIZATION_UNKNWN	(-1)
+#define POLARIZATION_HRZ	(0)
+#define POLARIZATION_VL		(1)
+#define POLARIZATION_VM		(2)
+#define POLARIZATION_VH		(3)
+
+#ifdef CONFIG_SMP
+void s390_init_cpu_topology(void);
+#else
+static inline void s390_init_cpu_topology(void)
+{
+};
+#endif
+
 #include <asm-generic/topology.h>
 
 #endif /* _ASM_S390_TOPOLOGY_H */
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index f8ab4ce7056..b5fef13148b 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -102,6 +102,25 @@ extern void disable_irq_nosync(unsigned int irq);
 extern void disable_irq(unsigned int irq);
 extern void enable_irq(unsigned int irq);
 
+#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
+
+extern int irq_set_affinity(unsigned int irq, cpumask_t cpumask);
+extern int irq_can_set_affinity(unsigned int irq);
+
+#else /* CONFIG_SMP */
+
+static inline int irq_set_affinity(unsigned int irq, cpumask_t cpumask)
+{
+	return -EINVAL;
+}
+
+static inline int irq_can_set_affinity(unsigned int irq)
+{
+	return 0;
+}
+
+#endif /* CONFIG_SMP && CONFIG_GENERIC_HARDIRQS */
+
 #ifdef CONFIG_GENERIC_HARDIRQS
 /*
  * Special lockdep variants of irq disabling/enabling.
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 176e5e790a4..1883a85625d 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -228,21 +228,11 @@ static inline void set_pending_irq(unsigned int irq, cpumask_t mask)
 
 #endif /* CONFIG_GENERIC_PENDING_IRQ */
 
-extern int irq_set_affinity(unsigned int irq, cpumask_t cpumask);
-extern int irq_can_set_affinity(unsigned int irq);
-
 #else /* CONFIG_SMP */
 
 #define move_native_irq(x)
 #define move_masked_irq(x)
 
-static inline int irq_set_affinity(unsigned int irq, cpumask_t cpumask)
-{
-	return -EINVAL;
-}
-
-static inline int irq_can_set_affinity(unsigned int irq) { return 0; }
-
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_IRQBALANCE