[ { "PublicDescription": "This event counts the unhalted core cycles during which the thread is in the ring 0 privileged mode.", "EventCode": "0x5C", "Counter": "0,1,2,3", "UMask": "0x1", "EventName": "CPL_CYCLES.RING0", "SampleAfterValue": "2000003", "BriefDescription": "Unhalted core cycles when the thread is in ring 0", "CounterHTOff": "0,1,2,3,4,5,6,7" }, { "PublicDescription": "This event counts unhalted core cycles during which the thread is in rings 1, 2, or 3.", "EventCode": "0x5C", "Counter": "0,1,2,3", "UMask": "0x2", "EventName": "CPL_CYCLES.RING123", "SampleAfterValue": "2000003", "BriefDescription": "Unhalted core cycles when thread is in rings 1, 2, or 3", "CounterHTOff": "0,1,2,3,4,5,6,7" }, { "PublicDescription": "This event counts when there is a transition from ring 1,2 or 3 to ring0.", "EventCode": "0x5C", "Counter": "0,1,2,3", "UMask": "0x1", "EdgeDetect": "1", "EventName": "CPL_CYCLES.RING0_TRANS", "SampleAfterValue": "100007", "BriefDescription": "Number of intervals between processor halts while thread is in ring 0", "CounterMask": "1", "CounterHTOff": "0,1,2,3,4,5,6,7" }, { "PublicDescription": "This event counts cycles in which the L1 and L2 are locked due to a UC lock or split lock. A lock is asserted in case of locked memory access, due to noncacheable memory, locked operation that spans two cache lines, or a page walk from the noncacheable page table. L1D and L2 locks have a very high performance penalty and it is highly recommended to avoid such access.", "EventCode": "0x63", "Counter": "0,1,2,3", "UMask": "0x1", "EventName": "LOCK_CYCLES.SPLIT_LOCK_UC_LOCK_DURATION", "SampleAfterValue": "2000003", "BriefDescription": "Cycles when L1 and L2 are locked due to UC or split lock", "CounterHTOff": "0,1,2,3,4,5,6,7" } ]-next.git/diff/sound/soc/intel/haswell/Makefile?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>diff
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 23:58:38 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 08:37:27 +0100
commitdd86e373e09fb16b83e8adf5c48c421a4ca76468 (patch)
tree55703c2ea8584e303e342090614e0aab3509ab21 /sound/soc/intel/haswell/Makefile
parent0b3589be9b98994ce3d5aeca52445d1f5627c4ba (diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/soc/intel/haswell/Makefile')