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-rw-r--r--arch/s390/include/asm/atomic.h19
-rw-r--r--arch/s390/include/asm/bug.h8
-rw-r--r--arch/s390/include/asm/ccwdev.h10
-rw-r--r--arch/s390/include/asm/cputime.h9
-rw-r--r--arch/s390/include/asm/lowcore.h89
-rw-r--r--arch/s390/include/asm/ptrace.h3
-rw-r--r--arch/s390/include/asm/qdio.h2
-rw-r--r--arch/s390/include/asm/scatterlist.h2
-rw-r--r--arch/s390/include/asm/setup.h5
-rw-r--r--arch/s390/include/asm/system.h5
-rw-r--r--arch/s390/include/asm/thread_info.h3
-rw-r--r--arch/s390/include/asm/timex.h8
-rw-r--r--arch/s390/include/asm/topology.h2
13 files changed, 102 insertions, 63 deletions
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 451bfbb9db3d..76daea117181 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -15,6 +15,7 @@
#include <linux/compiler.h>
#include <linux/types.h>
+#include <asm/system.h>
#define ATOMIC_INIT(i) { (i) }
@@ -274,6 +275,7 @@ static inline void atomic64_clear_mask(unsigned long long mask, atomic64_t *v)
static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
{
long long c, old;
+
c = atomic64_read(v);
for (;;) {
if (unlikely(c == u))
@@ -286,6 +288,23 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
return c != u;
}
+static inline long long atomic64_dec_if_positive(atomic64_t *v)
+{
+ long long c, old, dec;
+
+ c = atomic64_read(v);
+ for (;;) {
+ dec = c - 1;
+ if (unlikely(dec < 0))
+ break;
+ old = atomic64_cmpxchg((v), c, dec);
+ if (likely(old == c))
+ break;
+ c = old;
+ }
+ return dec;
+}
+
#define atomic64_add(_i, _v) atomic64_add_return(_i, _v)
#define atomic64_add_negative(_i, _v) (atomic64_add_return(_i, _v) < 0)
#define atomic64_inc(_v) atomic64_add_return(1, _v)
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index 9beeb9db9b23..bf90d1fd97a5 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -46,18 +46,18 @@
unreachable(); \
} while (0)
-#define __WARN() do { \
- __EMIT_BUG(BUGFLAG_WARNING); \
+#define __WARN_TAINT(taint) do { \
+ __EMIT_BUG(BUGFLAG_TAINT(taint)); \
} while (0)
#define WARN_ON(x) ({ \
int __ret_warn_on = !!(x); \
if (__builtin_constant_p(__ret_warn_on)) { \
if (__ret_warn_on) \
- __EMIT_BUG(BUGFLAG_WARNING); \
+ __WARN(); \
} else { \
if (unlikely(__ret_warn_on)) \
- __EMIT_BUG(BUGFLAG_WARNING); \
+ __WARN(); \
} \
unlikely(__ret_warn_on); \
})
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h
index f4bd346a52d3..1c0030f9b890 100644
--- a/arch/s390/include/asm/ccwdev.h
+++ b/arch/s390/include/asm/ccwdev.h
@@ -91,6 +91,14 @@ struct ccw_device {
void (*handler) (struct ccw_device *, unsigned long, struct irb *);
};
+/*
+ * Possible CIO actions triggered by the unit check handler.
+ */
+enum uc_todo {
+ UC_TODO_RETRY,
+ UC_TODO_RETRY_ON_NEW_PATH,
+ UC_TODO_STOP
+};
/**
* struct ccw driver - device driver for channel attached devices
@@ -107,6 +115,7 @@ struct ccw_device {
* @freeze: callback for freezing during hibernation snapshotting
* @thaw: undo work done in @freeze
* @restore: callback for restoring after hibernation
+ * @uc_handler: callback for unit check handler
* @driver: embedded device driver structure
* @name: device driver name
*/
@@ -124,6 +133,7 @@ struct ccw_driver {
int (*freeze)(struct ccw_device *);
int (*thaw) (struct ccw_device *);
int (*restore)(struct ccw_device *);
+ enum uc_todo (*uc_handler) (struct ccw_device *, struct irb *);
struct device_driver driver;
char *name;
};
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h
index 258ba88b7b50..8b1a52a137c5 100644
--- a/arch/s390/include/asm/cputime.h
+++ b/arch/s390/include/asm/cputime.h
@@ -188,15 +188,16 @@ struct s390_idle_data {
DECLARE_PER_CPU(struct s390_idle_data, s390_idle);
-void vtime_start_cpu(void);
+void vtime_start_cpu(__u64 int_clock, __u64 enter_timer);
cputime64_t s390_get_idle_time(int cpu);
#define arch_idle_time(cpu) s390_get_idle_time(cpu)
-static inline void s390_idle_check(void)
+static inline void s390_idle_check(struct pt_regs *regs, __u64 int_clock,
+ __u64 enter_timer)
{
- if ((&__get_cpu_var(s390_idle))->idle_enter != 0ULL)
- vtime_start_cpu();
+ if (regs->psw.mask & PSW_MASK_WAIT)
+ vtime_start_cpu(int_clock, enter_timer);
}
static inline int s390_nohz_delay(int cpu)
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 05527c040b7a..0f97ef2d92ac 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -104,38 +104,39 @@ struct _lowcore {
/* CPU time accounting values */
__u64 sync_enter_timer; /* 0x0250 */
__u64 async_enter_timer; /* 0x0258 */
- __u64 exit_timer; /* 0x0260 */
- __u64 user_timer; /* 0x0268 */
- __u64 system_timer; /* 0x0270 */
- __u64 steal_timer; /* 0x0278 */
- __u64 last_update_timer; /* 0x0280 */
- __u64 last_update_clock; /* 0x0288 */
+ __u64 mcck_enter_timer; /* 0x0260 */
+ __u64 exit_timer; /* 0x0268 */
+ __u64 user_timer; /* 0x0270 */
+ __u64 system_timer; /* 0x0278 */
+ __u64 steal_timer; /* 0x0280 */
+ __u64 last_update_timer; /* 0x0288 */
+ __u64 last_update_clock; /* 0x0290 */
/* Current process. */
- __u32 current_task; /* 0x0290 */
- __u32 thread_info; /* 0x0294 */
- __u32 kernel_stack; /* 0x0298 */
+ __u32 current_task; /* 0x0298 */
+ __u32 thread_info; /* 0x029c */
+ __u32 kernel_stack; /* 0x02a0 */
/* Interrupt and panic stack. */
- __u32 async_stack; /* 0x029c */
- __u32 panic_stack; /* 0x02a0 */
+ __u32 async_stack; /* 0x02a4 */
+ __u32 panic_stack; /* 0x02a8 */
/* Address space pointer. */
- __u32 kernel_asce; /* 0x02a4 */
- __u32 user_asce; /* 0x02a8 */
- __u32 user_exec_asce; /* 0x02ac */
+ __u32 kernel_asce; /* 0x02ac */
+ __u32 user_asce; /* 0x02b0 */
+ __u32 user_exec_asce; /* 0x02b4 */
/* SMP info area */
- struct cpuid cpu_id; /* 0x02b0 */
__u32 cpu_nr; /* 0x02b8 */
__u32 softirq_pending; /* 0x02bc */
__u32 percpu_offset; /* 0x02c0 */
__u32 ext_call_fast; /* 0x02c4 */
__u64 int_clock; /* 0x02c8 */
- __u64 clock_comparator; /* 0x02d0 */
- __u32 machine_flags; /* 0x02d8 */
- __u32 ftrace_func; /* 0x02dc */
- __u8 pad_0x02e0[0x0300-0x02e0]; /* 0x02e0 */
+ __u64 mcck_clock; /* 0x02d0 */
+ __u64 clock_comparator; /* 0x02d8 */
+ __u32 machine_flags; /* 0x02e0 */
+ __u32 ftrace_func; /* 0x02e4 */
+ __u8 pad_0x02e8[0x0300-0x02e8]; /* 0x02e8 */
/* Interrupt response block */
__u8 irb[64]; /* 0x0300 */
@@ -189,14 +190,14 @@ struct _lowcore {
__u32 data_exc_code; /* 0x0090 */
__u16 mon_class_num; /* 0x0094 */
__u16 per_perc_atmid; /* 0x0096 */
- addr_t per_address; /* 0x0098 */
+ __u64 per_address; /* 0x0098 */
__u8 exc_access_id; /* 0x00a0 */
__u8 per_access_id; /* 0x00a1 */
__u8 op_access_id; /* 0x00a2 */
__u8 ar_access_id; /* 0x00a3 */
__u8 pad_0x00a4[0x00a8-0x00a4]; /* 0x00a4 */
- addr_t trans_exc_code; /* 0x00a8 */
- addr_t monitor_code; /* 0x00b0 */
+ __u64 trans_exc_code; /* 0x00a8 */
+ __u64 monitor_code; /* 0x00b0 */
__u16 subchannel_id; /* 0x00b8 */
__u16 subchannel_nr; /* 0x00ba */
__u32 io_int_parm; /* 0x00bc */
@@ -207,7 +208,7 @@ struct _lowcore {
__u32 mcck_interruption_code[2]; /* 0x00e8 */
__u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */
__u32 external_damage_code; /* 0x00f4 */
- addr_t failing_storage_address; /* 0x00f8 */
+ __u64 failing_storage_address; /* 0x00f8 */
__u8 pad_0x0100[0x0110-0x0100]; /* 0x0100 */
__u64 breaking_event_addr; /* 0x0110 */
__u8 pad_0x0118[0x0120-0x0118]; /* 0x0118 */
@@ -233,39 +234,41 @@ struct _lowcore {
/* CPU accounting and timing values. */
__u64 sync_enter_timer; /* 0x02a0 */
__u64 async_enter_timer; /* 0x02a8 */
- __u64 exit_timer; /* 0x02b0 */
- __u64 user_timer; /* 0x02b8 */
- __u64 system_timer; /* 0x02c0 */
- __u64 steal_timer; /* 0x02c8 */
- __u64 last_update_timer; /* 0x02d0 */
- __u64 last_update_clock; /* 0x02d8 */
+ __u64 mcck_enter_timer; /* 0x02b0 */
+ __u64 exit_timer; /* 0x02b8 */
+ __u64 user_timer; /* 0x02c0 */
+ __u64 system_timer; /* 0x02c8 */
+ __u64 steal_timer; /* 0x02d0 */
+ __u64 last_update_timer; /* 0x02d8 */
+ __u64 last_update_clock; /* 0x02e0 */
/* Current process. */
- __u64 current_task; /* 0x02e0 */
- __u64 thread_info; /* 0x02e8 */
- __u64 kernel_stack; /* 0x02f0 */
+ __u64 current_task; /* 0x02e8 */
+ __u64 thread_info; /* 0x02f0 */
+ __u64 kernel_stack; /* 0x02f8 */
/* Interrupt and panic stack. */
- __u64 async_stack; /* 0x02f8 */
- __u64 panic_stack; /* 0x0300 */
+ __u64 async_stack; /* 0x0300 */
+ __u64 panic_stack; /* 0x0308 */
/* Address space pointer. */
- __u64 kernel_asce; /* 0x0308 */
- __u64 user_asce; /* 0x0310 */
- __u64 user_exec_asce; /* 0x0318 */
+ __u64 kernel_asce; /* 0x0310 */
+ __u64 user_asce; /* 0x0318 */
+ __u64 user_exec_asce; /* 0x0320 */
/* SMP info area */
- struct cpuid cpu_id; /* 0x0320 */
__u32 cpu_nr; /* 0x0328 */
__u32 softirq_pending; /* 0x032c */
__u64 percpu_offset; /* 0x0330 */
__u64 ext_call_fast; /* 0x0338 */
__u64 int_clock; /* 0x0340 */
- __u64 clock_comparator; /* 0x0348 */
- __u64 vdso_per_cpu_data; /* 0x0350 */
- __u64 machine_flags; /* 0x0358 */
- __u64 ftrace_func; /* 0x0360 */
- __u8 pad_0x0368[0x0380-0x0368]; /* 0x0368 */
+ __u64 mcck_clock; /* 0x0348 */
+ __u64 clock_comparator; /* 0x0350 */
+ __u64 vdso_per_cpu_data; /* 0x0358 */
+ __u64 machine_flags; /* 0x0360 */
+ __u64 ftrace_func; /* 0x0368 */
+ __u64 sie_hook; /* 0x0370 */
+ __u64 cmf_hpp; /* 0x0378 */
/* Interrupt response block. */
__u8 irb[64]; /* 0x0380 */
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index fef9b33cdd59..e2c218dc68a6 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -328,8 +328,8 @@ struct pt_regs
psw_t psw;
unsigned long gprs[NUM_GPRS];
unsigned long orig_gpr2;
- unsigned short svcnr;
unsigned short ilc;
+ unsigned short svcnr;
};
#endif
@@ -436,6 +436,7 @@ typedef struct
#define PTRACE_PEEKDATA_AREA 0x5003
#define PTRACE_POKETEXT_AREA 0x5004
#define PTRACE_POKEDATA_AREA 0x5005
+#define PTRACE_GET_LAST_BREAK 0x5006
/*
* PT_PROT definition is loosely based on hppa bsd definition in
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index 9b04b1102bbc..0eaae6260274 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -368,14 +368,12 @@ struct qdio_initialize {
#define QDIO_FLAG_SYNC_OUTPUT 0x02
#define QDIO_FLAG_PCI_OUT 0x10
-extern int qdio_initialize(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_cleanup(struct ccw_device*, 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*);
diff --git a/arch/s390/include/asm/scatterlist.h b/arch/s390/include/asm/scatterlist.h
index 35d786fe93ae..be44d94cba54 100644
--- a/arch/s390/include/asm/scatterlist.h
+++ b/arch/s390/include/asm/scatterlist.h
@@ -1 +1,3 @@
+#define ISA_DMA_THRESHOLD (~0UL)
+
#include <asm-generic/scatterlist.h>
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 9ab6bd3a65d1..25e831d58e1e 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -2,7 +2,7 @@
* include/asm-s390/setup.h
*
* S390 version
- * Copyright IBM Corp. 1999,2006
+ * Copyright IBM Corp. 1999,2010
*/
#ifndef _ASM_S390_SETUP_H
@@ -72,6 +72,7 @@ extern unsigned int user_mode;
#define MACHINE_FLAG_HPAGE (1UL << 10)
#define MACHINE_FLAG_PFMF (1UL << 11)
#define MACHINE_FLAG_LPAR (1UL << 12)
+#define MACHINE_FLAG_SPP (1UL << 13)
#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
@@ -88,6 +89,7 @@ extern unsigned int user_mode;
#define MACHINE_HAS_MVCOS (0)
#define MACHINE_HAS_HPAGE (0)
#define MACHINE_HAS_PFMF (0)
+#define MACHINE_HAS_SPP (0)
#else /* __s390x__ */
#define MACHINE_HAS_IEEE (1)
#define MACHINE_HAS_CSP (1)
@@ -97,6 +99,7 @@ extern unsigned int user_mode;
#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
#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)
#endif /* __s390x__ */
#define ZFCPDUMP_HSA_SIZE (32UL<<20)
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 1741c1556a4e..cef66210c846 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -459,11 +459,6 @@ extern void (*_machine_power_off)(void);
#define arch_align_stack(x) (x)
-#ifdef CONFIG_TRACE_IRQFLAGS
-extern psw_t sysc_restore_trace_psw;
-extern psw_t io_restore_trace_psw;
-#endif
-
static inline int tprot(unsigned long addr)
{
int rc = -EFAULT;
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 34f0873d6525..5baf0230b29b 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -50,6 +50,7 @@ struct thread_info {
struct restart_block restart_block;
__u64 user_timer;
__u64 system_timer;
+ unsigned long last_break; /* last breaking-event-address. */
};
/*
@@ -96,7 +97,7 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
#define TIF_31BIT 17 /* 32bit process */
-#define TIF_MEMDIE 18
+#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 */
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index f174bdaa6b59..09d345a701dc 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -61,11 +61,15 @@ static inline unsigned long long get_clock (void)
return clk;
}
+static inline void get_clock_ext(char *clk)
+{
+ asm volatile("stcke %0" : "=Q" (*clk) : : "cc");
+}
+
static inline unsigned long long get_clock_xt(void)
{
unsigned char clk[16];
-
- asm volatile("stcke %0" : "=Q" (clk) : : "cc");
+ get_clock_ext(clk);
return *((unsigned long long *)&clk[1]);
}
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index 6e7211abd950..dc8a67297d0f 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -7,8 +7,10 @@
const struct cpumask *cpu_coregroup_mask(unsigned int cpu);
+extern unsigned char cpu_core_id[NR_CPUS];
extern cpumask_t cpu_core_map[NR_CPUS];
+#define topology_core_id(cpu) (cpu_core_id[cpu])
#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
int topology_set_cpu_management(int fc);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 06:15:32 +0100