From 722e76e60f2775c21b087ff12c5e678cf0ebcaaf Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Thu, 15 May 2014 17:56:44 +0200 Subject: [PATCH] fix Haswell precise store data source encoding This patch fixes a bug in precise_store_data_hsw() whereby it would set the data source memory level to the wrong value. As per the the SDM Vol 3b Table 18-41 (Layout of Data Linear Address Information in PEBS Record), when status bit 0 is set this is a L1 hit, otherwise this is a L1 miss. This patch encodes the memory level according to the specification. In V2, we added the filtering on the store events. Only the following events produce L1 information: * MEM_UOPS_RETIRED.STLB_MISS_STORES * MEM_UOPS_RETIRED.LOCK_STORES * MEM_UOPS_RETIRED.SPLIT_STORES * MEM_UOPS_RETIRED.ALL_STORES Cc: mingo@elte.hu Cc: acme@ghostprotocols.net Cc: jolsa@redhat.com Cc: jmario@redhat.com Cc: ak@linux.intel.com Tested-and-Reviewed-by: Don Zickus Signed-off-by: Stephane Eranian Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20140515155644.GA3884@quad Signed-off-by: Thomas Gleixner --- Reading git-format-patch failed