| /* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef _DPU_CORE_PERF_H_ |
| #define _DPU_CORE_PERF_H_ |
| |
| #include <linux/types.h> |
| #include <linux/dcache.h> |
| #include <linux/mutex.h> |
| #include <drm/drm_crtc.h> |
| |
| #include "dpu_hw_catalog.h" |
| #include "dpu_power_handle.h" |
| |
| #define DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE 412500000 |
| |
| /** |
| * struct dpu_core_perf_params - definition of performance parameters |
| * @max_per_pipe_ib: maximum instantaneous bandwidth request |
| * @bw_ctl: arbitrated bandwidth request |
| * @core_clk_rate: core clock rate request |
| */ |
| struct dpu_core_perf_params { |
| u64 max_per_pipe_ib[DPU_POWER_HANDLE_DBUS_ID_MAX]; |
| u64 bw_ctl[DPU_POWER_HANDLE_DBUS_ID_MAX]; |
| u64 core_clk_rate; |
| }; |
| |
| /** |
| * struct dpu_core_perf_tune - definition of performance tuning control |
| * @mode: performance mode |
| * @min_core_clk: minimum core clock |
| * @min_bus_vote: minimum bus vote |
| */ |
| struct dpu_core_perf_tune { |
| u32 mode; |
| u64 min_core_clk; |
| u64 min_bus_vote; |
| }; |
| |
| /** |
| * struct dpu_core_perf - definition of core performance context |
| * @dev: Pointer to drm device |
| * @debugfs_root: top level debug folder |
| * @catalog: Pointer to catalog configuration |
| * @phandle: Pointer to power handler |
| * @core_clk: Pointer to core clock structure |
| * @core_clk_rate: current core clock rate |
| * @max_core_clk_rate: maximum allowable core clock rate |
| * @perf_tune: debug control for performance tuning |
| * @enable_bw_release: debug control for bandwidth release |
| * @fix_core_clk_rate: fixed core clock request in Hz used in mode 2 |
| * @fix_core_ib_vote: fixed core ib vote in bps used in mode 2 |
| * @fix_core_ab_vote: fixed core ab vote in bps used in mode 2 |
| */ |
| struct dpu_core_perf { |
| struct drm_device *dev; |
| struct dentry *debugfs_root; |
| struct dpu_mdss_cfg *catalog; |
| struct dpu_power_handle *phandle; |
| struct dss_clk *core_clk; |
| u64 core_clk_rate; |
| u64 max_core_clk_rate; |
| struct dpu_core_perf_tune perf_tune; |
| u32 enable_bw_release; |
| u64 fix_core_clk_rate; |
| u64 fix_core_ib_vote; |
| u64 fix_core_ab_vote; |
| }; |
| |
| /** |
| * dpu_core_perf_crtc_check - validate performance of the given crtc state |
| * @crtc: Pointer to crtc |
| * @state: Pointer to new crtc state |
| * return: zero if success, or error code otherwise |
| */ |
| int dpu_core_perf_crtc_check(struct drm_crtc *crtc, |
| struct drm_crtc_state *state); |
| |
| /** |
| * dpu_core_perf_crtc_update - update performance of the given crtc |
| * @crtc: Pointer to crtc |
| * @params_changed: true if crtc parameters are modified |
| * @stop_req: true if this is a stop request |
| * return: zero if success, or error code otherwise |
| */ |
| int dpu_core_perf_crtc_update(struct drm_crtc *crtc, |
| int params_changed, bool stop_req); |
| |
| /** |
| * dpu_core_perf_crtc_release_bw - release bandwidth of the given crtc |
| * @crtc: Pointer to crtc |
| */ |
| void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc); |
| |
| /** |
| * dpu_core_perf_destroy - destroy the given core performance context |
| * @perf: Pointer to core performance context |
| */ |
| void dpu_core_perf_destroy(struct dpu_core_perf *perf); |
| |
| /** |
| * dpu_core_perf_init - initialize the given core performance context |
| * @perf: Pointer to core performance context |
| * @dev: Pointer to drm device |
| * @catalog: Pointer to catalog |
| * @phandle: Pointer to power handle |
| * @core_clk: pointer to core clock |
| */ |
| int dpu_core_perf_init(struct dpu_core_perf *perf, |
| struct drm_device *dev, |
| struct dpu_mdss_cfg *catalog, |
| struct dpu_power_handle *phandle, |
| struct dss_clk *core_clk); |
| |
| /** |
| * dpu_core_perf_debugfs_init - initialize debugfs for core performance context |
| * @perf: Pointer to core performance context |
| * @debugfs_parent: Pointer to parent debugfs |
| */ |
| int dpu_core_perf_debugfs_init(struct dpu_core_perf *perf, |
| struct dentry *parent); |
| |
| #endif /* _DPU_CORE_PERF_H_ */ |