Merge remote-tracking branches 'regulator/fix/anatop', 'regulator/fix/gpio', 'regulat...

[firefly-linux-kernel-4.4.55.git] / arch / x86 / kernel / cpu / perf_event_intel.c

diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 3f124d553c5aaa2fef8baf4f03f609a65bb5f191..3fefebfbdf4bb4f68e5a5bf1647550ad0cd71a75 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -12,7 +12,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/export.h>
-#include <linux/watchdog.h>
+#include <linux/nmi.h>
 
 #include <asm/cpufeature.h>
 #include <asm/hardirq.h>
@@ -2316,9 +2316,12 @@ static struct event_constraint *
 intel_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
                            struct perf_event *event)
 {
-       struct event_constraint *c1 = cpuc->event_constraint[idx];
+       struct event_constraint *c1 = NULL;
        struct event_constraint *c2;
 
+       if (idx >= 0) /* fake does < 0 */
+               c1 = cpuc->event_constraint[idx];
+
        /*
         * first time only
         * - static constraint: no change across incremental scheduling calls
@@ -3627,7 +3630,10 @@ static __init int fixup_ht_bug(void)
                return 0;
        }
 
-       watchdog_nmi_disable_all();
+       if (lockup_detector_suspend() != 0) {
+               pr_debug("failed to disable PMU erratum BJ122, BV98, HSD29 workaround\n");
+               return 0;
+       }
 
        x86_pmu.flags &= ~(PMU_FL_EXCL_CNTRS | PMU_FL_EXCL_ENABLED);
 
@@ -3635,7 +3641,7 @@ static __init int fixup_ht_bug(void)
        x86_pmu.commit_scheduling = NULL;
        x86_pmu.stop_scheduling = NULL;
 
-       watchdog_nmi_enable_all();
+       lockup_detector_resume();
 
        get_online_cpus();