| Message ID | 1422054704-14915-5-git-send-email-balbi@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index 861f127dfead..ea103aa970f1 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -51,6 +51,14 @@ }; }; + pmu { + compatible = "arm,cortex-a9-pmu"; + reg = <0x4b000000 0x800000>; + interrutps = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>; + ti,hwmods = "debugss"; + }; + gic: interrupt-controller@48241000 { compatible = "arm,cortex-a9-gic"; interrupt-controller;
with this patch, performance monitors work and show sensible data on AM43xx devices: ~# perf stat sleep 5 Performance counter stats for 'sleep 5': 6.079585 task-clock (msec) # 0.001 CPUs utilized 3 context-switches # 0.493 K/sec 0 cpu-migrations # 0.000 K/sec 35 page-faults # 0.006 M/sec 5888256 cycles # 0.969 GHz 1458715 stalled-cycles-frontend # 24.77% frontend cycles idle 4632019 stalled-cycles-backend # 78.67% backend cycles idle 1892556 instructions # 0.32 insns per cycle # 2.45 stalled cycles per insn 141832 branches # 23.329 M/sec 56093 branch-misses # 39.55% of all branches 5.018813000 seconds time elapsed Signed-off-by: Felipe Balbi <balbi@ti.com> --- arch/arm/boot/dts/am4372.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)