diff options
| author | Robert Richter <robert.richter@amd.com> | 2008-07-22 21:08:56 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-26 11:48:05 +0200 |
| commit | 7939d2bf7e30353d40d14f967b7fe2b2a7be5bd9 (patch) | |
| tree | a2b4224019e6c9c6ea4f39aba2363c23c2d7b89d | |
| parent | 56784f11df473b4c1d9d0e37777fd7c0b77b6bca (diff) | |
| download | linux-7939d2bf7e30353d40d14f967b7fe2b2a7be5bd9.tar.gz linux-7939d2bf7e30353d40d14f967b7fe2b2a7be5bd9.tar.bz2 linux-7939d2bf7e30353d40d14f967b7fe2b2a7be5bd9.zip | |
x86/oprofile: separating the IBS handler
Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list <oprofile-list@lists.sourceforge.net>
Cc: Barry Kasindorf <barry.kasindorf@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/oprofile/op_model_athlon.c | 45 |
1 files changed, 28 insertions, 17 deletions
diff --git a/arch/x86/oprofile/op_model_athlon.c b/arch/x86/oprofile/op_model_athlon.c index 229e0b4e21e3..a2c8e2e372bb 100644 --- a/arch/x86/oprofile/op_model_athlon.c +++ b/arch/x86/oprofile/op_model_athlon.c @@ -195,27 +195,18 @@ static void op_amd_setup_ctrs(struct op_msrs const * const msrs) } } - -static int op_amd_check_ctrs(struct pt_regs * const regs, - struct op_msrs const * const msrs) +static inline int +op_amd_handle_ibs(struct pt_regs * const regs, + struct op_msrs const * const msrs) { unsigned int low, high; - int i; struct ibs_fetch_sample ibs_fetch; struct ibs_op_sample ibs_op; - for (i = 0 ; i < NUM_COUNTERS; ++i) { - if (!reset_value[i]) - continue; - CTR_READ(low, high, msrs, i); - if (CTR_OVERFLOWED(low)) { - oprofile_add_sample(regs, i); - CTR_WRITE(reset_value[i], msrs, i); - } - } + if (!ibs_allowed) + return 1; - /*If AMD and IBS is available */ - if (ibs_allowed && ibs_config.fetch_enabled) { + if (ibs_config.fetch_enabled) { rdmsr(MSR_AMD64_IBSFETCHCTL, low, high); if (high & IBS_FETCH_VALID_BIT) { ibs_fetch.ibs_fetch_ctl_high = high; @@ -240,7 +231,7 @@ static int op_amd_check_ctrs(struct pt_regs * const regs, } } - if (ibs_allowed && ibs_config.op_enabled) { + if (ibs_config.op_enabled) { rdmsr(MSR_AMD64_IBSOPCTL, low, high); if (low & IBS_OP_VALID_BIT) { rdmsr(MSR_AMD64_IBSOPRIP, low, high); @@ -273,10 +264,30 @@ static int op_amd_check_ctrs(struct pt_regs * const regs, } } - /* See op_model_ppro.c */ return 1; } +static int op_amd_check_ctrs(struct pt_regs * const regs, + struct op_msrs const * const msrs) +{ + unsigned int low, high; + int i; + + for (i = 0 ; i < NUM_COUNTERS; ++i) { + if (!reset_value[i]) + continue; + CTR_READ(low, high, msrs, i); + if (CTR_OVERFLOWED(low)) { + oprofile_add_sample(regs, i); + CTR_WRITE(reset_value[i], msrs, i); + } + } + + op_amd_handle_ibs(regs, msrs); + + /* See op_model_ppro.c */ + return 1; +} static void op_amd_start(struct op_msrs const * const msrs) { |