| commit | 74846d35b24b6efd61bb88a0a750b6bb257e6e78 | [log] [tgz] |
|---|---|---|
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | Fri Mar 05 13:49:35 2010 +0100 |
| committer | Ingo Molnar <mingo@elte.hu> | Wed Mar 10 13:23:35 2010 +0100 |
| tree | 82b2a428ce246a1ceaf390077d38a618fd6e01cb | |
| parent | 3c44780b220e876b01e39d4028cd6f4205fbf5d6 [diff] |
perf, x86: Clear the LBRs on init Some CPUs have errata where the LBR is not cleared on Power-On. So always clear the LBRs before use. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <20100305154128.966563424@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>