diff options
| author | Robert Richter <robert.richter@amd.com> | 2010-01-28 18:05:26 +0100 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2010-02-26 15:13:55 +0100 |
| commit | 013cfc50672bbb638796545231683231647edb07 (patch) | |
| tree | 447341fdc02e9ae26540123c5139f06a4186c66f /arch | |
| parent | oprofile: remove EXPERIMENTAL from the config option description (diff) | |
| download | linux-013cfc50672bbb638796545231683231647edb07.tar.xz linux-013cfc50672bbb638796545231683231647edb07.zip | |
oprofile/x86: remove OPROFILE_IBS config option
OProfile support for IBS is now for several versions in the
kernel. The feature is stable now and the code can be activated
permanently.
As a side effect IBS now works also on nosmp configs.
Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/Kconfig | 14 | ||||
| -rw-r--r-- | arch/x86/oprofile/op_model_amd.c | 31 |
2 files changed, 1 insertions, 44 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index d67787241813..06a13729c8df 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -15,20 +15,6 @@ config OPROFILE If unsure, say N. -config OPROFILE_IBS - bool "OProfile AMD IBS support (EXPERIMENTAL)" - default n - depends on OPROFILE && SMP && X86 - help - Instruction-Based Sampling (IBS) is a new profiling - technique that provides rich, precise program performance - information. IBS is introduced by AMD Family10h processors - (AMD Opteron Quad-Core processor "Barcelona") to overcome - the limitations of conventional performance counter - sampling. - - If unsure, say N. - config OPROFILE_EVENT_MULTIPLEX bool "OProfile multiplexing support (EXPERIMENTAL)" default n diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c index 39686c29f03a..2b9c68d868ed 100644 --- a/arch/x86/oprofile/op_model_amd.c +++ b/arch/x86/oprofile/op_model_amd.c @@ -22,6 +22,7 @@ #include <asm/ptrace.h> #include <asm/msr.h> #include <asm/nmi.h> +#include <asm/apic.h> #include "op_x86_model.h" #include "op_counter.h" @@ -43,8 +44,6 @@ static unsigned long reset_value[NUM_VIRT_COUNTERS]; -#ifdef CONFIG_OPROFILE_IBS - /* IbsFetchCtl bits/masks */ #define IBS_FETCH_RAND_EN (1ULL<<57) #define IBS_FETCH_VAL (1ULL<<49) @@ -72,8 +71,6 @@ struct op_ibs_config { static struct op_ibs_config ibs_config; -#endif - #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX static void op_mux_fill_in_addresses(struct op_msrs * const msrs) @@ -185,8 +182,6 @@ static void op_amd_setup_ctrs(struct op_x86_model_spec const *model, } } -#ifdef CONFIG_OPROFILE_IBS - static inline void op_amd_handle_ibs(struct pt_regs * const regs, struct op_msrs const * const msrs) @@ -272,15 +267,6 @@ static void op_amd_stop_ibs(void) wrmsrl(MSR_AMD64_IBSOPCTL, 0); } -#else - -static inline void op_amd_handle_ibs(struct pt_regs * const regs, - struct op_msrs const * const msrs) { } -static inline void op_amd_start_ibs(void) { } -static inline void op_amd_stop_ibs(void) { } - -#endif - static int op_amd_check_ctrs(struct pt_regs * const regs, struct op_msrs const * const msrs) { @@ -355,8 +341,6 @@ static void op_amd_shutdown(struct op_msrs const * const msrs) } } -#ifdef CONFIG_OPROFILE_IBS - static u8 ibs_eilvt_off; static inline void apic_init_ibs_nmi_per_cpu(void *arg) @@ -507,19 +491,6 @@ static void op_amd_exit(void) ibs_exit(); } -#else - -/* no IBS support */ - -static int op_amd_init(struct oprofile_operations *ops) -{ - return 0; -} - -static void op_amd_exit(void) {} - -#endif /* CONFIG_OPROFILE_IBS */ - struct op_x86_model_spec op_amd_spec = { .num_counters = NUM_COUNTERS, .num_controls = NUM_CONTROLS, |