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| author | Robert Richter <robert.richter@amd.com> | 2011-11-08 15:52:15 +0100 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2011-11-08 15:52:15 +0100 |
| commit | de346b6949063aa040ef607943b072835294f4b3 (patch) | |
| tree | 11f5a10b9ab41a10ea26bf8ab1f133b802e7559e /arch/x86/oprofile | |
| parent | oprofile, x86: Reimplement nmi timer mode using perf event (diff) | |
| parent | x86, nmi: Wire up NMI handlers to new routines (diff) | |
| download | linux-de346b6949063aa040ef607943b072835294f4b3.tar.xz linux-de346b6949063aa040ef607943b072835294f4b3.zip | |
Merge branch 'perf/core' into oprofile/master
Merge reason: Resolve conflicts with Don's NMI rework:
commit 9c48f1c629ecfa114850c03f875c6691003214de
Author: Don Zickus <dzickus@redhat.com>
Date: Fri Sep 30 15:06:21 2011 -0400
x86, nmi: Wire up NMI handlers to new routines
Conflicts:
arch/x86/oprofile/nmi_timer_int.c
Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'arch/x86/oprofile')
| -rw-r--r-- | arch/x86/oprofile/nmi_int.c | 38 |
1 files changed, 11 insertions, 27 deletions
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index 7ca4d43e8988..990c35bfa88f 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -61,26 +61,15 @@ u64 op_x86_get_ctrl(struct op_x86_model_spec const *model, } -static int profile_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data) +static int profile_exceptions_notify(unsigned int val, struct pt_regs *regs) { - struct die_args *args = (struct die_args *)data; - int ret = NOTIFY_DONE; - - switch (val) { - case DIE_NMI: - if (ctr_running) - model->check_ctrs(args->regs, &__get_cpu_var(cpu_msrs)); - else if (!nmi_enabled) - break; - else - model->stop(&__get_cpu_var(cpu_msrs)); - ret = NOTIFY_STOP; - break; - default: - break; - } - return ret; + if (ctr_running) + model->check_ctrs(regs, &__get_cpu_var(cpu_msrs)); + else if (!nmi_enabled) + return NMI_DONE; + else + model->stop(&__get_cpu_var(cpu_msrs)); + return NMI_HANDLED; } static void nmi_cpu_save_registers(struct op_msrs *msrs) @@ -363,12 +352,6 @@ static void nmi_cpu_setup(void *dummy) apic_write(APIC_LVTPC, APIC_DM_NMI); } -static struct notifier_block profile_exceptions_nb = { - .notifier_call = profile_exceptions_notify, - .next = NULL, - .priority = NMI_LOCAL_LOW_PRIOR, -}; - static void nmi_cpu_restore_registers(struct op_msrs *msrs) { struct op_msr *counters = msrs->counters; @@ -508,7 +491,8 @@ static int nmi_setup(void) ctr_running = 0; /* make variables visible to the nmi handler: */ smp_mb(); - err = register_die_notifier(&profile_exceptions_nb); + err = register_nmi_handler(NMI_LOCAL, profile_exceptions_notify, + 0, "oprofile"); if (err) goto fail; @@ -538,7 +522,7 @@ static void nmi_shutdown(void) put_online_cpus(); /* make variables visible to the nmi handler: */ smp_mb(); - unregister_die_notifier(&profile_exceptions_nb); + unregister_nmi_handler(NMI_LOCAL, "oprofile"); msrs = &get_cpu_var(cpu_msrs); model->shutdown(msrs); free_msrs(); |