18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 28c2ecf20Sopenharmony_cimenuconfig PM_DEVFREQ_EVENT 38c2ecf20Sopenharmony_ci bool "DEVFREQ-Event device Support" 48c2ecf20Sopenharmony_ci help 58c2ecf20Sopenharmony_ci The devfreq-event device provide the raw data and events which 68c2ecf20Sopenharmony_ci indicate the current state of devfreq-event device. The provided 78c2ecf20Sopenharmony_ci data from devfreq-event device is used to monitor the state of 88c2ecf20Sopenharmony_ci device and determine the suitable size of resource to reduce the 98c2ecf20Sopenharmony_ci wasted resource. 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci The devfreq-event device can support the various type of events 128c2ecf20Sopenharmony_ci (e.g., raw data, utilization, latency, bandwidth). The events 138c2ecf20Sopenharmony_ci may be used by devfreq governor and other subsystem. 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ciif PM_DEVFREQ_EVENT 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ciconfig DEVFREQ_EVENT_EXYNOS_NOCP 188c2ecf20Sopenharmony_ci tristate "Exynos NoC (Network On Chip) Probe DEVFREQ event Driver" 198c2ecf20Sopenharmony_ci depends on ARCH_EXYNOS || COMPILE_TEST 208c2ecf20Sopenharmony_ci select PM_OPP 218c2ecf20Sopenharmony_ci select REGMAP_MMIO 228c2ecf20Sopenharmony_ci help 238c2ecf20Sopenharmony_ci This add the devfreq-event driver for Exynos SoC. It provides NoC 248c2ecf20Sopenharmony_ci (Network on Chip) Probe counters to measure the bandwidth of AXI bus. 258c2ecf20Sopenharmony_ci 268c2ecf20Sopenharmony_ciconfig DEVFREQ_EVENT_EXYNOS_PPMU 278c2ecf20Sopenharmony_ci tristate "Exynos PPMU (Platform Performance Monitoring Unit) DEVFREQ event Driver" 288c2ecf20Sopenharmony_ci depends on ARCH_EXYNOS || COMPILE_TEST 298c2ecf20Sopenharmony_ci select PM_OPP 308c2ecf20Sopenharmony_ci help 318c2ecf20Sopenharmony_ci This add the devfreq-event driver for Exynos SoC. It provides PPMU 328c2ecf20Sopenharmony_ci (Platform Performance Monitoring Unit) counters to estimate the 338c2ecf20Sopenharmony_ci utilization of each module. 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ciconfig DEVFREQ_EVENT_ROCKCHIP_DFI 368c2ecf20Sopenharmony_ci tristate "ROCKCHIP DFI DEVFREQ event Driver" 378c2ecf20Sopenharmony_ci depends on ARCH_ROCKCHIP || COMPILE_TEST 388c2ecf20Sopenharmony_ci help 398c2ecf20Sopenharmony_ci This add the devfreq-event driver for Rockchip SoC. It provides DFI 408c2ecf20Sopenharmony_ci (DDR Monitor Module) driver to count ddr load. 418c2ecf20Sopenharmony_ci 428c2ecf20Sopenharmony_ciendif # PM_DEVFREQ_EVENT 43