diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h deleted file mode 100644 index a65b7a297f21..000000000000 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h +++ /dev/null @@ -1,217 +0,0 @@ -/* 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_POWER_HANDLE_H_ -#define _DPU_POWER_HANDLE_H_ - -#define MAX_CLIENT_NAME_LEN 128 - -#define DPU_POWER_HANDLE_ENABLE_BUS_AB_QUOTA 0 -#define DPU_POWER_HANDLE_DISABLE_BUS_AB_QUOTA 0 -#define DPU_POWER_HANDLE_ENABLE_BUS_IB_QUOTA 1600000000 -#define DPU_POWER_HANDLE_DISABLE_BUS_IB_QUOTA 0 - -#include "dpu_io_util.h" - -/* events will be triggered on power handler enable/disable */ -#define DPU_POWER_EVENT_DISABLE BIT(0) -#define DPU_POWER_EVENT_ENABLE BIT(1) - -/** - * mdss_bus_vote_type: register bus vote type - * VOTE_INDEX_DISABLE: removes the client vote - * VOTE_INDEX_LOW: keeps the lowest vote for register bus - * VOTE_INDEX_MAX: invalid - */ -enum mdss_bus_vote_type { - VOTE_INDEX_DISABLE, - VOTE_INDEX_LOW, - VOTE_INDEX_MAX, -}; - -/** - * enum dpu_power_handle_data_bus_client - type of axi bus clients - * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_RT: core real-time bus client - * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_NRT: core non-real-time bus client - * @DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX: maximum number of bus client type - */ -enum dpu_power_handle_data_bus_client { - DPU_POWER_HANDLE_DATA_BUS_CLIENT_RT, - DPU_POWER_HANDLE_DATA_BUS_CLIENT_NRT, - DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX -}; - -/** - * enum DPU_POWER_HANDLE_DBUS_ID - data bus identifier - * @DPU_POWER_HANDLE_DBUS_ID_MNOC: DPU/MNOC data bus - * @DPU_POWER_HANDLE_DBUS_ID_LLCC: MNOC/LLCC data bus - * @DPU_POWER_HANDLE_DBUS_ID_EBI: LLCC/EBI data bus - */ -enum DPU_POWER_HANDLE_DBUS_ID { - DPU_POWER_HANDLE_DBUS_ID_MNOC, - DPU_POWER_HANDLE_DBUS_ID_LLCC, - DPU_POWER_HANDLE_DBUS_ID_EBI, - DPU_POWER_HANDLE_DBUS_ID_MAX, -}; - -/** - * struct dpu_power_client: stores the power client for dpu driver - * @name: name of the client - * @usecase_ndx: current regs bus vote type - * @refcount: current refcount if multiple modules are using same - * same client for enable/disable. Power module will - * aggregate the refcount and vote accordingly for this - * client. - * @id: assigned during create. helps for debugging. - * @list: list to attach power handle master list - * @ab: arbitrated bandwidth for each bus client - * @ib: instantaneous bandwidth for each bus client - * @active: inidcates the state of dpu power handle - */ -struct dpu_power_client { - char name[MAX_CLIENT_NAME_LEN]; - short usecase_ndx; - short refcount; - u32 id; - struct list_head list; - u64 ab[DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX]; - u64 ib[DPU_POWER_HANDLE_DATA_BUS_CLIENT_MAX]; - bool active; -}; - -/* - * struct dpu_power_event - local event registration structure - * @client_name: name of the client registering - * @cb_fnc: pointer to desired callback function - * @usr: user pointer to pass to callback event trigger - * @event: refer to DPU_POWER_HANDLE_EVENT_* - * @list: list to attach event master list - * @active: indicates the state of dpu power handle - */ -struct dpu_power_event { - char client_name[MAX_CLIENT_NAME_LEN]; - void (*cb_fnc)(u32 event_type, void *usr); - void *usr; - u32 event_type; - struct list_head list; - bool active; -}; - -/** - * struct dpu_power_handle: power handle main struct - * @client_clist: master list to store all clients - * @phandle_lock: lock to synchronize the enable/disable - * @dev: pointer to device structure - * @usecase_ndx: current usecase index - * @event_list: current power handle event list - */ -struct dpu_power_handle { - struct list_head power_client_clist; - struct mutex phandle_lock; - struct device *dev; - u32 current_usecase_ndx; - struct list_head event_list; -}; - -/** - * dpu_power_resource_init() - initializes the dpu power handle - * @pdev: platform device to search the power resources - * @pdata: power handle to store the power resources - */ -void dpu_power_resource_init(struct platform_device *pdev, - struct dpu_power_handle *pdata); - -/** - * dpu_power_resource_deinit() - release the dpu power handle - * @pdev: platform device for power resources - * @pdata: power handle containing the resources - * - * Return: error code. - */ -void dpu_power_resource_deinit(struct platform_device *pdev, - struct dpu_power_handle *pdata); - -/** - * dpu_power_client_create() - create the client on power handle - * @pdata: power handle containing the resources - * @client_name: new client name for registration - * - * Return: error code. - */ -struct dpu_power_client *dpu_power_client_create(struct dpu_power_handle *pdata, - char *client_name); - -/** - * dpu_power_client_destroy() - destroy the client on power handle - * @pdata: power handle containing the resources - * @client_name: new client name for registration - * - * Return: none - */ -void dpu_power_client_destroy(struct dpu_power_handle *phandle, - struct dpu_power_client *client); - -/** - * dpu_power_resource_enable() - enable/disable the power resources - * @pdata: power handle containing the resources - * @client: client information to enable/disable its vote - * @enable: boolean request for enable/disable - * - * Return: error code. - */ -int dpu_power_resource_enable(struct dpu_power_handle *pdata, - struct dpu_power_client *pclient, bool enable); - -/** - * dpu_power_data_bus_bandwidth_ctrl() - control data bus bandwidth enable - * @phandle: power handle containing the resources - * @client: client information to bandwidth control - * @enable: true to enable bandwidth for data base - * - * Return: none - */ -void dpu_power_data_bus_bandwidth_ctrl(struct dpu_power_handle *phandle, - struct dpu_power_client *pclient, int enable); - -/** - * dpu_power_handle_register_event - register a callback function for an event. - * Clients can register for multiple events with a single register. - * Any block with access to phandle can register for the event - * notification. - * @phandle: power handle containing the resources - * @event_type: event type to register; refer DPU_POWER_HANDLE_EVENT_* - * @cb_fnc: pointer to desired callback function - * @usr: user pointer to pass to callback on event trigger - * - * Return: event pointer if success, or error code otherwise - */ -struct dpu_power_event *dpu_power_handle_register_event( - struct dpu_power_handle *phandle, - u32 event_type, void (*cb_fnc)(u32 event_type, void *usr), - void *usr, char *client_name); -/** - * dpu_power_handle_unregister_event - unregister callback for event(s) - * @phandle: power handle containing the resources - * @event: event pointer returned after power handle register - */ -void dpu_power_handle_unregister_event(struct dpu_power_handle *phandle, - struct dpu_power_event *event); - -/** - * dpu_power_handle_get_dbus_name - get name of given data bus identifier - * @bus_id: data bus identifier - * Return: Pointer to name string if success; NULL otherwise - */ -const char *dpu_power_handle_get_dbus_name(u32 bus_id); - -#endif /* _DPU_POWER_HANDLE_H_ */ |