Commit e40ed154 authored by Janakarajan Natarajan's avatar Janakarajan Natarajan Committed by Ingo Molnar

perf/x86: Add perf support for AMD family-17h processors

This patch enables perf core PMU support for the new AMD family-17h processors.

In family-17h, there is no PMC-event constraint. All events, irrespective of
the type, can be measured using any of the six generic performance counters.
Signed-off-by: default avatarJanakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Acked-by: default avatarBorislav Petkov <bp@suse.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
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: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1479399306-13375-1-git-send-email-Janakarajan.Natarajan@amd.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent c499336c
...@@ -662,7 +662,13 @@ static int __init amd_core_pmu_init(void) ...@@ -662,7 +662,13 @@ static int __init amd_core_pmu_init(void)
pr_cont("Fam15h "); pr_cont("Fam15h ");
x86_pmu.get_event_constraints = amd_get_event_constraints_f15h; x86_pmu.get_event_constraints = amd_get_event_constraints_f15h;
break; break;
case 0x17:
pr_cont("Fam17h ");
/*
* In family 17h, there are no event constraints in the PMC hardware.
* We fallback to using default amd_get_event_constraints.
*/
break;
default: default:
pr_err("core perfctr but no constraints; unknown hardware!\n"); pr_err("core perfctr but no constraints; unknown hardware!\n");
return -ENODEV; return -ENODEV;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment