Activity monitoring (actmon for short) is a means to dynamically measure the utilization of units in the system to help drive software power management policies. In Tegra, Dynamic Voltage and Frequency Scaling (DVFS) is the primary dynamic power management mechanism. It uses utilization information from various units to select the most efficient frequency and thereby, voltage that the unit should operate while providing the requisite performance. --- Johnny Liu (5): dt-bindings: display: tegra: Add actmon information arm64: tegra: Add actmon information gpu: host1x: Support device monitoring with actmon drm/tegra: nvdec: Register the device with actmon drm/tegra: vic: Register the device with actmon .../display/tegra/nvidia,tegra20-host1x.yaml | 45 +- arch/arm64/boot/dts/nvidia/tegra234.dtsi | 10 +- drivers/gpu/drm/tegra/nvdec.c | 82 ++- drivers/gpu/drm/tegra/vic.c | 39 +- drivers/gpu/drm/tegra/vic.h | 9 + drivers/gpu/host1x/Makefile | 1 + drivers/gpu/host1x/actmon.c | 558 ++++++++++++++++++ drivers/gpu/host1x/actmon.h | 46 ++ drivers/gpu/host1x/dev.c | 71 ++- drivers/gpu/host1x/dev.h | 57 +- drivers/gpu/host1x/hw/actmon.h | 49 ++ drivers/gpu/host1x/hw/host1x08.c | 6 +- drivers/gpu/host1x/hw/hw_host1x08_common.h | 16 +- drivers/gpu/host1x/hw/intr_general_hw.c | 83 +++ include/linux/host1x.h | 30 +- 15 files changed, 1074 insertions(+), 28 deletions(-) create mode 100644 drivers/gpu/host1x/actmon.c create mode 100644 drivers/gpu/host1x/actmon.h create mode 100644 drivers/gpu/host1x/hw/actmon.h create mode 100644 drivers/gpu/host1x/hw/intr_general_hw.c -- 2.34.1
