| /* Copyright (c) 2016-2017, 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 _SDE_RSC_PRIV_H_ |
| #define _SDE_RSC_PRIV_H_ |
| |
| #include <linux/kernel.h> |
| #include <linux/sde_io_util.h> |
| #include <linux/sde_rsc.h> |
| |
| #include <soc/qcom/tcs.h> |
| #include "sde_power_handle.h" |
| |
| #define SDE_RSC_COMPATIBLE "disp_rscc" |
| |
| #define MAX_RSC_COUNT 5 |
| |
| #define ALL_MODES_DISABLED 0x0 |
| #define ONLY_MODE_0_ENABLED 0x1 |
| #define ONLY_MODE_0_1_ENABLED 0x3 |
| #define ALL_MODES_ENABLED 0x7 |
| |
| #define MAX_COUNT_SIZE_SUPPORTED 128 |
| |
| struct sde_rsc_priv; |
| |
| /** |
| * rsc_mode_req: sde rsc mode request information |
| * MODE_READ: read vsync status |
| * MODE_UPDATE: mode timeslot update |
| * 0x0: all modes are disabled. |
| * 0x1: Mode-0 is enabled and other two modes are disabled. |
| * 0x3: Mode-0 & Mode-1 are enabled and mode-2 is disabled. |
| * 0x7: all modes are enabled. |
| */ |
| enum rsc_mode_req { |
| MODE_READ, |
| MODE_UPDATE = 0x1, |
| }; |
| |
| /** |
| * rsc_vsync_req: sde rsc vsync request information |
| * VSYNC_READ: read vsync status |
| * VSYNC_READ_VSYNC0: read value vsync0 timestamp (cast to int from u32) |
| * VSYNC_ENABLE: enable rsc wrapper vsync status |
| * VSYNC_DISABLE: disable rsc wrapper vsync status |
| */ |
| enum rsc_vsync_req { |
| VSYNC_READ, |
| VSYNC_READ_VSYNC0, |
| VSYNC_ENABLE, |
| VSYNC_DISABLE, |
| }; |
| |
| /** |
| * struct sde_rsc_hw_ops - sde resource state coordinator hardware ops |
| * @init: Initialize the sequencer, solver, qtimer, |
| etc. hardware blocks on RSC. |
| * @tcs_wait: Waits for TCS block OK to allow sending a |
| * TCS command. |
| * @hw_vsync: Enables the vsync on RSC block. |
| * @tcs_use_ok: set TCS set to high to allow RSC to use it. |
| * @is_amc_mode: Check current amc mode status |
| * @state_update: Enable/override the solver based on rsc state |
| * status (command/video) |
| * @mode_show: shows current mode status, mode0/1/2 |
| * @debug_show: Show current debug status. |
| */ |
| |
| struct sde_rsc_hw_ops { |
| int (*init)(struct sde_rsc_priv *rsc); |
| int (*tcs_wait)(struct sde_rsc_priv *rsc); |
| int (*hw_vsync)(struct sde_rsc_priv *rsc, enum rsc_vsync_req request, |
| char *buffer, int buffer_size, u32 mode); |
| int (*tcs_use_ok)(struct sde_rsc_priv *rsc); |
| bool (*is_amc_mode)(struct sde_rsc_priv *rsc); |
| int (*state_update)(struct sde_rsc_priv *rsc, enum sde_rsc_state state); |
| int (*debug_show)(struct seq_file *s, struct sde_rsc_priv *rsc); |
| int (*mode_ctrl)(struct sde_rsc_priv *rsc, enum rsc_mode_req request, |
| char *buffer, int buffer_size, u32 mode); |
| }; |
| |
| /** |
| * struct sde_rsc_timer_config: this is internal configuration between |
| * rsc and rsc_hw API. |
| * |
| * @static_wakeup_time_ns: wrapper backoff time in nano seconds |
| * @rsc_backoff_time_ns: rsc backoff time in nano seconds |
| * @pdc_backoff_time_ns: pdc backoff time in nano seconds |
| * @rsc_mode_threshold_time_ns: rsc mode threshold time in nano seconds |
| * @rsc_time_slot_0_ns: mode-0 time slot threshold in nano seconds |
| * @rsc_time_slot_1_ns: mode-1 time slot threshold in nano seconds |
| * @rsc_time_slot_2_ns: mode-2 time slot threshold in nano seconds |
| */ |
| struct sde_rsc_timer_config { |
| u32 static_wakeup_time_ns; |
| |
| u32 rsc_backoff_time_ns; |
| u32 pdc_backoff_time_ns; |
| u32 rsc_mode_threshold_time_ns; |
| u32 rsc_time_slot_0_ns; |
| u32 rsc_time_slot_1_ns; |
| u32 rsc_time_slot_2_ns; |
| }; |
| |
| /** |
| * struct sde_rsc_priv: sde resource state coordinator(rsc) private handle |
| * @version: rsc sequence version |
| * @phandle: module power handle for clocks |
| * @pclient: module power client of phandle |
| * @fs: "MDSS GDSC" handle |
| * |
| * @disp_rsc: display rsc handle |
| * @drv_io: sde drv io data mapping |
| * @wrapper_io: wrapper io data mapping |
| * |
| * @client_list: current rsc client list handle |
| * @event_list: current rsc event list handle |
| * @client_lock: current rsc client synchronization lock |
| * |
| * timer_config: current rsc timer configuration |
| * cmd_config: current panel config |
| * current_state: current rsc state (video/command), solver |
| * override/enabled. |
| * debug_mode: enables the logging for each register read/write |
| * debugfs_root: debugfs file system root node |
| * |
| * hw_ops: sde rsc hardware operations |
| * power_collapse: if all clients are in IDLE state then it enters in |
| * mode2 state and enable the power collapse state |
| * power_collapse_block:By default, rsc move to mode-2 if all clients are in |
| * invalid state. It can be blocked by this boolean entry. |
| * primary_client: A client which is allowed to make command state request |
| * and ab/ib vote on display rsc |
| * master_drm: Primary client waits for vsync on this drm object based |
| * on crtc id |
| */ |
| struct sde_rsc_priv { |
| u32 version; |
| struct sde_power_handle phandle; |
| struct sde_power_client *pclient; |
| struct regulator *fs; |
| |
| struct rpmh_client *disp_rsc; |
| struct dss_io_data drv_io; |
| struct dss_io_data wrapper_io; |
| |
| struct list_head client_list; |
| struct list_head event_list; |
| struct mutex client_lock; |
| |
| struct sde_rsc_timer_config timer_config; |
| struct sde_rsc_cmd_config cmd_config; |
| u32 current_state; |
| |
| u32 debug_mode; |
| struct dentry *debugfs_root; |
| |
| struct sde_rsc_hw_ops hw_ops; |
| bool power_collapse; |
| bool power_collapse_block; |
| struct sde_rsc_client *primary_client; |
| |
| struct drm_device *master_drm; |
| }; |
| |
| /** |
| * sde_rsc_hw_register() - register hardware API |
| * |
| * @client: Client pointer provided by sde_rsc_client_create(). |
| * |
| * Return: error code. |
| */ |
| int sde_rsc_hw_register(struct sde_rsc_priv *rsc); |
| |
| #endif /* _SDE_RSC_PRIV_H_ */ |