perf/x86/msr: Add Comet Lake CPU support

Comet Lake is the new 10th Gen Intel processor. PPERF and SMI_COUNT MSRs
are also supported.

The External Design Specification (EDS) is not published yet. It comes
from an authoritative internal source.

The patch has been tested on real hardware.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/1570549810-25049-4-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/events/msr.c b/arch/x86/events/msr.c
index b1afc77..c177bbe 100644 (file)
--- a/arch/x86/events/msr.c
+++ b/arch/x86/events/msr.c
@@ -89,6 +89,8 @@ static bool test_intel(int idx, void *data)
        case INTEL_FAM6_SKYLAKE_X:
        case INTEL_FAM6_KABYLAKE_L:
        case INTEL_FAM6_KABYLAKE:
+       case INTEL_FAM6_COMETLAKE_L:
+       case INTEL_FAM6_COMETLAKE:
        case INTEL_FAM6_ICELAKE_L:
                if (idx == PERF_MSR_SMI || idx == PERF_MSR_PPERF)
                        return true;