perf/x86/intel: Add more available bits for OFFCORE_RESPONSE of Intel Tremont
authorKan Liang <kan.liang@linux.intel.com>
Fri, 1 May 2020 12:54:42 +0000 (05:54 -0700)
committerPeter Zijlstra <peterz@infradead.org>
Tue, 19 May 2020 18:34:16 +0000 (20:34 +0200)
The mask in the extra_regs for Intel Tremont need to be extended to
allow more defined bits.

"Outstanding Requests" (bit 63) is only available on MSR_OFFCORE_RSP0;

Fixes: 6daeb8737f8a ("perf/x86/intel: Add Tremont core PMU support")
Reported-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200501125442.7030-1-kan.liang@linux.intel.com
arch/x86/events/intel/core.c

index 332954c..ca35c8b 100644 (file)
@@ -1892,8 +1892,8 @@ static __initconst const u64 tnt_hw_cache_extra_regs
 
 static struct extra_reg intel_tnt_extra_regs[] __read_mostly = {
        /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
-       INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0xffffff9fffull, RSP_0),
-       INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0xffffff9fffull, RSP_1),
+       INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x800ff0ffffff9fffull, RSP_0),
+       INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0xff0ffffff9fffull, RSP_1),
        EVENT_EXTRA_END
 };