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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-05 07:53:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-05 07:53:56 +0200 |
| commit | 50e177c5bfd9abc3828cb57e14e6169170f6764a (patch) | |
| tree | 180aafa376fb7a0a89c7d6812f640f8c46758bd5 /arch/x86/events/intel/lbr.c | |
| parent | misc: microchip: pci1xxxx: Add power management functions - suspend & resume ... (diff) | |
| parent | Linux 6.0-rc4 (diff) | |
| download | linux-50e177c5bfd9abc3828cb57e14e6169170f6764a.tar.xz linux-50e177c5bfd9abc3828cb57e14e6169170f6764a.zip | |
Merge 6.0-rc4 into char-misc-next
We need the char-misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/events/intel/lbr.c')
| -rw-r--r-- | arch/x86/events/intel/lbr.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c index 4f70fb6c2c1e..47fca6a7a8bc 100644 --- a/arch/x86/events/intel/lbr.c +++ b/arch/x86/events/intel/lbr.c @@ -1097,6 +1097,14 @@ static int intel_pmu_setup_hw_lbr_filter(struct perf_event *event) if (static_cpu_has(X86_FEATURE_ARCH_LBR)) { reg->config = mask; + + /* + * The Arch LBR HW can retrieve the common branch types + * from the LBR_INFO. It doesn't require the high overhead + * SW disassemble. + * Enable the branch type by default for the Arch LBR. + */ + reg->reg |= X86_BR_TYPE_SAVE; return 0; } |