| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | menuconfig PM_DEVFREQ_EVENT |
| 3 | bool "DEVFREQ-Event device Support" |
| 4 | help |
| 5 | The devfreq-event device provide the raw data and events which |
| 6 | indicate the current state of devfreq-event device. The provided |
| 7 | data from devfreq-event device is used to monitor the state of |
| 8 | device and determine the suitable size of resource to reduce the |
| 9 | wasted resource. |
| 10 | |
| 11 | The devfreq-event device can support the various type of events |
| 12 | (e.g., raw data, utilization, latency, bandwidth). The events |
| 13 | may be used by devfreq governor and other subsystem. |
| 14 | |
| 15 | if PM_DEVFREQ_EVENT |
| 16 | |
| 17 | config DEVFREQ_EVENT_EXYNOS_NOCP |
| 18 | tristate "EXYNOS NoC (Network On Chip) Probe DEVFREQ event Driver" |
| 19 | depends on ARCH_EXYNOS || COMPILE_TEST |
| 20 | select PM_OPP |
| 21 | select REGMAP_MMIO |
| 22 | help |
| 23 | This add the devfreq-event driver for Exynos SoC. It provides NoC |
| 24 | (Network on Chip) Probe counters to measure the bandwidth of AXI bus. |
| 25 | |
| 26 | config DEVFREQ_EVENT_EXYNOS_PPMU |
| 27 | tristate "EXYNOS PPMU (Platform Performance Monitoring Unit) DEVFREQ event Driver" |
| 28 | depends on ARCH_EXYNOS || COMPILE_TEST |
| 29 | select PM_OPP |
| 30 | help |
| 31 | This add the devfreq-event driver for Exynos SoC. It provides PPMU |
| 32 | (Platform Performance Monitoring Unit) counters to estimate the |
| 33 | utilization of each module. |
| 34 | |
| 35 | config DEVFREQ_EVENT_ROCKCHIP_DFI |
| 36 | tristate "ROCKCHIP DFI DEVFREQ event Driver" |
| 37 | depends on ARCH_ROCKCHIP |
| 38 | help |
| 39 | This add the devfreq-event driver for Rockchip SoC. It provides DFI |
| 40 | (DDR Monitor Module) driver to count ddr load. |
| 41 | |
| 42 | endif # PM_DEVFREQ_EVENT |