Messages in this thread Patch in this message | | | From | Robert Richter <> | Subject | [PATCH 21/26] x86/oprofile: Enable multiplexing only if the model supports it | Date | Tue, 28 Jul 2009 19:07:21 +0200 |
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This patch checks if the model supports multiplexing. Only then multiplexing will be enabled. The code is added to the common x86 initialization.
Signed-off-by: Robert Richter <robert.richter@amd.com> --- arch/x86/oprofile/nmi_int.c | 12 +++++++++--- 1 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index dca7240..f0fb447 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -258,6 +258,12 @@ static int nmi_switch_event(void) return 0; } +static inline void mux_init(struct oprofile_operations *ops) +{ + if (has_mux()) + ops->switch_events = nmi_switch_event; +} + #else inline int op_x86_phys_to_virt(int phys) { return phys; } @@ -265,6 +271,7 @@ static inline void nmi_shutdown_mux(void) { } static inline int nmi_setup_mux(void) { return 1; } static inline void nmi_cpu_setup_mux(int cpu, struct op_msrs const * const msrs) { } +static inline void mux_init(struct oprofile_operations *ops) { } #endif @@ -682,9 +689,6 @@ int __init op_nmi_init(struct oprofile_operations *ops) ops->start = nmi_start; ops->stop = nmi_stop; ops->cpu_type = cpu_type; -#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX - ops->switch_events = nmi_switch_event; -#endif if (model->init) ret = model->init(ops); @@ -694,6 +698,8 @@ int __init op_nmi_init(struct oprofile_operations *ops) if (!model->num_virt_counters) model->num_virt_counters = model->num_counters; + mux_init(ops); + init_sysfs(); using_nmi = 1; printk(KERN_INFO "oprofile: using NMI interrupt.\n"); -- 1.6.3.3
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