diff options
| -rw-r--r-- | arch/s390/include/asm/cpu_mf.h | 5 | ||||
| -rw-r--r-- | arch/s390/include/asm/irq.h | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/processor.h | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/irq.c | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/process.c | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/runtime_instr.c | 64 |
6 files changed, 3 insertions, 70 deletions
diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h index 5243a8679a1d..9dd04b9e9782 100644 --- a/arch/s390/include/asm/cpu_mf.h +++ b/arch/s390/include/asm/cpu_mf.h @@ -22,15 +22,10 @@ #define CPU_MF_INT_SF_LSDA (1 << 22) /* loss of sample data alert */ #define CPU_MF_INT_CF_CACA (1 << 7) /* counter auth. change alert */ #define CPU_MF_INT_CF_LCDA (1 << 6) /* loss of counter data alert */ -#define CPU_MF_INT_RI_HALTED (1 << 5) /* run-time instr. halted */ -#define CPU_MF_INT_RI_BUF_FULL (1 << 4) /* run-time instr. program - buffer full */ - #define CPU_MF_INT_CF_MASK (CPU_MF_INT_CF_CACA|CPU_MF_INT_CF_LCDA) #define CPU_MF_INT_SF_MASK (CPU_MF_INT_SF_IAE|CPU_MF_INT_SF_ISE| \ CPU_MF_INT_SF_PRA|CPU_MF_INT_SF_SACA| \ CPU_MF_INT_SF_LSDA) -#define CPU_MF_INT_RI_MASK (CPU_MF_INT_RI_HALTED|CPU_MF_INT_RI_BUF_FULL) /* CPU measurement facility support */ static inline int cpum_cf_avail(void) diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index 33d26424c2f5..f97b055de76a 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -47,7 +47,6 @@ enum interruption_class { IRQEXT_IUC, IRQEXT_CMS, IRQEXT_CMC, - IRQEXT_CMR, IRQEXT_FTP, IRQIO_CIO, IRQIO_QAI, diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index d39cca3a3153..b16c3d0a1b9f 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -107,7 +107,6 @@ struct thread_struct { struct list_head list; /* cpu runtime instrumentation */ struct runtime_instr_cb *ri_cb; - int ri_signum; unsigned char trap_tdb[256]; /* Transaction abort diagnose block */ }; diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index e9d9addfaa44..f41d5208aaf7 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -69,7 +69,6 @@ static const struct irq_class irqclass_sub_desc[] = { {.irq = IRQEXT_IUC, .name = "IUC", .desc = "[EXT] IUCV"}, {.irq = IRQEXT_CMS, .name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"}, {.irq = IRQEXT_CMC, .name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"}, - {.irq = IRQEXT_CMR, .name = "CMR", .desc = "[EXT] CPU-Measurement: RI"}, {.irq = IRQEXT_FTP, .name = "FTP", .desc = "[EXT] HMC FTP Service"}, {.irq = IRQIO_CIO, .name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"}, {.irq = IRQIO_QAI, .name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"}, diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index cd5568608744..688a3aad9c79 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -171,7 +171,6 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp, /* Don't copy runtime instrumentation info */ p->thread.ri_cb = NULL; - p->thread.ri_signum = 0; frame->childregs.psw.mask &= ~PSW_MASK_RI; /* Set a new TLS ? */ diff --git a/arch/s390/kernel/runtime_instr.c b/arch/s390/kernel/runtime_instr.c index 26b4ae96fdd7..fffa0e5462af 100644 --- a/arch/s390/kernel/runtime_instr.c +++ b/arch/s390/kernel/runtime_instr.c @@ -18,11 +18,6 @@ /* empty control block to disable RI by loading it */ struct runtime_instr_cb runtime_instr_empty_cb; -static int runtime_instr_avail(void) -{ - return test_facility(64); -} - static void disable_runtime_instr(void) { struct pt_regs *regs = task_pt_regs(current); @@ -40,7 +35,6 @@ static void disable_runtime_instr(void) static void init_runtime_instr_cb(struct runtime_instr_cb *cb) { cb->buf_limit = 0xfff; - cb->int_requested = 1; cb->pstate = 1; cb->pstate_set_buf = 1; cb->pstate_sample = 1; @@ -57,46 +51,14 @@ void exit_thread_runtime_instr(void) return; disable_runtime_instr(); kfree(task->thread.ri_cb); - task->thread.ri_signum = 0; task->thread.ri_cb = NULL; } -static void runtime_instr_int_handler(struct ext_code ext_code, - unsigned int param32, unsigned long param64) -{ - struct siginfo info; - - if (!(param32 & CPU_MF_INT_RI_MASK)) - return; - - inc_irq_stat(IRQEXT_CMR); - - if (!current->thread.ri_cb) - return; - if (current->thread.ri_signum < SIGRTMIN || - current->thread.ri_signum > SIGRTMAX) { - WARN_ON_ONCE(1); - return; - } - - memset(&info, 0, sizeof(info)); - info.si_signo = current->thread.ri_signum; - info.si_code = SI_QUEUE; - if (param32 & CPU_MF_INT_RI_BUF_FULL) - info.si_int = ENOBUFS; - else if (param32 & CPU_MF_INT_RI_HALTED) - info.si_int = ECANCELED; - else - return; /* unknown reason */ - - send_sig_info(current->thread.ri_signum, &info, current); -} - -SYSCALL_DEFINE2(s390_runtime_instr, int, command, int, signum) +SYSCALL_DEFINE1(s390_runtime_instr, int, command) { struct runtime_instr_cb *cb; - if (!runtime_instr_avail()) + if (!test_facility(64)) return -EOPNOTSUPP; if (command == S390_RUNTIME_INSTR_STOP) { @@ -106,8 +68,7 @@ SYSCALL_DEFINE2(s390_runtime_instr, int, command, int, signum) return 0; } - if (command != S390_RUNTIME_INSTR_START || - (signum < SIGRTMIN || signum > SIGRTMAX)) + if (command != S390_RUNTIME_INSTR_START) return -EINVAL; if (!current->thread.ri_cb) { @@ -120,7 +81,6 @@ SYSCALL_DEFINE2(s390_runtime_instr, int, command, int, signum) } init_runtime_instr_cb(cb); - current->thread.ri_signum = signum; /* now load the control block to make it available */ preempt_disable(); @@ -129,21 +89,3 @@ SYSCALL_DEFINE2(s390_runtime_instr, int, command, int, signum) preempt_enable(); return 0; } - -static int __init runtime_instr_init(void) -{ - int rc; - - if (!runtime_instr_avail()) - return 0; - - irq_subclass_register(IRQ_SUBCLASS_MEASUREMENT_ALERT); - rc = register_external_irq(EXT_IRQ_MEASURE_ALERT, - runtime_instr_int_handler); - if (rc) - irq_subclass_unregister(IRQ_SUBCLASS_MEASUREMENT_ALERT); - else - pr_info("Runtime instrumentation facility initialized\n"); - return rc; -} -device_initcall(runtime_instr_init); |
