target/linux/ramips/patches-4.14/110-mt7621-perfctr-fix.patch

   1 --- a/arch/mips/ralink/irq-gic.c
   2 +++ b/arch/mips/ralink/irq-gic.c
   3 @@ -15,6 +15,12 @@
   4
   5  int get_c0_perfcount_int(void)
   6  {
   7 +       /*
   8 +        * Performance counter events are routed through GIC.
   9 +        * Prevent them from firing on CPU IRQ7 as well
  10 +        */
  11 +       clear_c0_status(IE_SW0 << 7);
  12 +
  13         return gic_get_c0_perfcount_int();
  14  }
  15  EXPORT_SYMBOL_GPL(get_c0_perfcount_int);