diff options
Diffstat (limited to 'target/linux/ramips/patches-4.14')
| -rw-r--r-- | target/linux/ramips/patches-4.14/110-mt7621-perfctr-fix.patch | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.14/110-mt7621-perfctr-fix.patch b/target/linux/ramips/patches-4.14/110-mt7621-perfctr-fix.patch new file mode 100644 index 0000000000..4c40e65ab9 --- /dev/null +++ b/target/linux/ramips/patches-4.14/110-mt7621-perfctr-fix.patch @@ -0,0 +1,15 @@ +--- a/arch/mips/ralink/irq-gic.c ++++ b/arch/mips/ralink/irq-gic.c +@@ -15,6 +15,12 @@ + + int get_c0_perfcount_int(void) + { ++ /* ++ * Performance counter events are routed through GIC. ++ * Prevent them from firing on CPU IRQ7 as well ++ */ ++ clear_c0_status(IE_SW0 << 7); ++ + return gic_get_c0_perfcount_int(); + } + EXPORT_SYMBOL_GPL(get_c0_perfcount_int); |