diff options
| author | Robert Richter <robert.richter@amd.com> | 2009-07-09 16:02:44 +0200 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2009-07-20 16:43:21 +0200 |
| commit | 5280514471c2803776701c43c027038decac1103 (patch) | |
| tree | 2a3514de1759ad1929568e207509bf964608d5bd /arch/x86/oprofile | |
| parent | 39e97f40c3a5e71de0532368deaa683e09b74ba2 (diff) | |
| download | linux-5280514471c2803776701c43c027038decac1103.tar.bz2 | |
x86/oprofile: Enable multiplexing only if the model supports it
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>
Diffstat (limited to 'arch/x86/oprofile')
| -rw-r--r-- | 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 dca7240aeb26..f0fb44725d80 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"); |