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authorPeter Zijlstra <peterz@infradead.org>2019-04-02 22:45:04 +0300
committerIngo Molnar <mingo@kernel.org>2019-04-16 13:26:17 +0300
commit63b79f6ebc464afb730bc45762c820795e276da1 (patch)
tree203ad43868d1aaebc9e68c0d4f12f44cacec756a /arch/x86/include
parentd3617b98b04583df222f34992e65712862a77bf1 (diff)
downloadlinux-63b79f6ebc464afb730bc45762c820795e276da1.tar.xz
perf/x86: Support constraint ranges
Icelake extended the general counters to 8, even when SMT is enabled. However only a (large) subset of the events can be used on all 8 counters. The events that can or cannot be used on all counters are organized in ranges. A lot of scheduler constraints are required to handle all this. To avoid blowing up the tables add event code ranges to the constraint tables, and a new inline function to match them. Originally-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> # developer hat on Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> # maintainer hat on 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: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: acme@kernel.org Cc: jolsa@kernel.org Link: https://lkml.kernel.org/r/20190402194509.2832-8-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include')
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