/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. * Copyright (c) 2015-2021 The Linux Foundation. All rights reserved. * Copyright (C) 2013 Red Hat * Author: Rob Clark <robdclark@gmail.com> */ #ifndef _DPU_CRTC_H_ #define _DPU_CRTC_H_ #include <linux/kthread.h> #include <drm/drm_crtc.h> #include "dpu_kms.h" #include "dpu_core_perf.h" #define DPU_CRTC_NAME_SIZE 12 /* define the maximum number of in-flight frame events */ #define DPU_CRTC_FRAME_EVENT_SIZE 4 /** * enum dpu_crtc_client_type: crtc client type * @RT_CLIENT: RealTime client like video/cmd mode display * voting through apps rsc * @NRT_CLIENT: Non-RealTime client like WB display * voting through apps rsc */ enum dpu_crtc_client_type { RT_CLIENT, NRT_CLIENT, }; /** * enum dpu_crtc_smmu_state: smmu state * @ATTACHED: all the context banks are attached. * @DETACHED: all the context banks are detached. * @ATTACH_ALL_REQ: transient state of attaching context banks. * @DETACH_ALL_REQ: transient state of detaching context banks. */ enum dpu_crtc_smmu_state { ATTACHED = 0, DETACHED, ATTACH_ALL_REQ, DETACH_ALL_REQ, }; /** * enum dpu_crtc_smmu_state_transition_type: state transition type * @NONE: no pending state transitions * @PRE_COMMIT: state transitions should be done before processing the commit * @POST_COMMIT: state transitions to be done after processing the commit. */ enum dpu_crtc_smmu_state_transition_type { NONE, PRE_COMMIT, POST_COMMIT }; /** * struct dpu_crtc_smmu_state_data: stores the smmu state and transition type * @state: current state of smmu context banks * @transition_type: transition request type * @transition_error: whether there is error while transitioning the state */ struct dpu_crtc_smmu_state_data { uint32_t state; uint32_t transition_type; uint32_t transition_error; }; /** * enum dpu_crtc_crc_source: CRC source * @DPU_CRTC_CRC_SOURCE_NONE: no source set * @DPU_CRTC_CRC_SOURCE_LAYER_MIXER: CRC in layer mixer * @DPU_CRTC_CRC_SOURCE_ENCODER: CRC in encoder * @DPU_CRTC_CRC_SOURCE_INVALID: Invalid source */ enum dpu_crtc_crc_source { DPU_CRTC_CRC_SOURCE_NONE = 0, DPU_CRTC_CRC_SOURCE_LAYER_MIXER, DPU_CRTC_CRC_SOURCE_ENCODER, DPU_CRTC_CRC_SOURCE_MAX, DPU_CRTC_CRC_SOURCE_INVALID = -1 }; /** * struct dpu_crtc_mixer: stores the map for each virtual pipeline in the CRTC * @hw_lm: LM HW Driver context * @lm_ctl: CTL Path HW driver context * @lm_dspp: DSPP HW driver context * @mixer_op_mode: mixer blending operation mode * @flush_mask: mixer flush mask for ctl, mixer and pipe */ struct dpu_crtc_mixer { struct dpu_hw_mixer *hw_lm; struct dpu_hw_ctl *lm_ctl; struct dpu_hw_dspp *hw_dspp; u32 mixer_op_mode; }; /** * struct dpu_crtc_frame_event: stores crtc frame event for crtc processing * @work: base work structure * @crtc: Pointer to crtc handling this event * @list: event list * @ts: timestamp at queue entry * @event: event identifier */ struct dpu_crtc_frame_event { struct kthread_work work; struct drm_crtc *crtc; struct list_head list; ktime_t ts; u32 event; }; /* * Maximum number of free event structures to cache */ #define DPU_CRTC_MAX_EVENT_COUNT 16 /** * struct dpu_crtc - virtualized CRTC data structure * @base : Base drm crtc structure * @name : ASCII description of this crtc * @event : Pointer to last received drm vblank event. If there is a * pending vblank event, this will be non-null. * @vsync_count : Running count of received vsync events * @drm_requested_vblank : Whether vblanks have been enabled in the encoder * @property_info : Opaque structure for generic property support * @property_defaults : Array of default values for generic property support * @vblank_cb_count : count of vblank callback since last reset * @play_count : frame count between crtc enable and disable * @vblank_cb_time : ktime at vblank count reset * @enabled : whether the DPU CRTC is currently enabled. updated in the * commit-thread, not state-swap time which is earlier, so * safe to make decisions on during VBLANK on/off work * @feature_list : list of color processing features supported on a crtc * @active_list : list of color processing features are active * @dirty_list : list of color processing features are dirty * @ad_dirty: list containing ad properties that are dirty * @ad_active: list containing ad properties that are active * @frame_pending : Whether or not an update is pending * @frame_events : static allocation of in-flight frame events * @frame_event_list : available frame event list * @spin_lock : spin lock for frame event, transaction status, etc... * @frame_done_comp : for frame_event_done synchronization * @event_thread : Pointer to event handler thread * @event_worker : Event worker queue * @event_lock : Spinlock around event handling code * @phandle: Pointer to power handler * @cur_perf : current performance committed to clock/bandwidth driver * @crc_source : CRC source */ struct dpu_crtc { struct drm_crtc base; char name[DPU_CRTC_NAME_SIZE]; struct drm_pending_vblank_event *event; u32 vsync_count; u32 vblank_cb_count; u64 play_count; ktime_t vblank_cb_time; bool enabled; struct list_head feature_list; struct list_head active_list; struct list_head dirty_list; struct list_head ad_dirty; struct list_head ad_active; atomic_t frame_pending; struct dpu_crtc_frame_event frame_events[DPU_CRTC_FRAME_EVENT_SIZE]; struct list_head frame_event_list; spinlock_t spin_lock; struct completion frame_done_comp; /* for handling internal event thread */ spinlock_t event_lock; struct dpu_core_perf_params cur_perf; struct dpu_crtc_smmu_state_data smmu_state; }; #define to_dpu_crtc(x) container_of(x, struct dpu_crtc, base) /** * struct dpu_crtc_state - dpu container for atomic crtc state * @base: Base drm crtc state structure * @bw_control : true if bw/clk controlled by core bw/clk properties * @bw_split_vote : true if bw controlled by llcc/dram bw properties * @lm_bounds : LM boundaries based on current mode full resolution, no ROI. * Origin top left of CRTC. * @property_state: Local storage for msm_prop properties * @property_values: Current crtc property values * @input_fence_timeout_ns : Cached input fence timeout, in ns * @new_perf: new performance state being requested * @num_mixers : Number of mixers in use * @mixers : List of active mixers * @num_ctls : Number of ctl paths in use * @hw_ctls : List of active ctl paths * @crc_source : CRC source * @crc_frame_skip_count: Number of frames skipped before getting CRC */ struct dpu_crtc_state { struct drm_crtc_state base; bool bw_control; bool bw_split_vote; struct drm_rect lm_bounds[CRTC_DUAL_MIXERS]; uint64_t input_fence_timeout_ns; struct dpu_core_perf_params new_perf; /* HW Resources reserved for the crtc */ u32 num_mixers; struct dpu_crtc_mixer mixers[CRTC_DUAL_MIXERS]; u32 num_ctls; struct dpu_hw_ctl *hw_ctls[CRTC_DUAL_MIXERS]; enum dpu_crtc_crc_source crc_source; int crc_frame_skip_count; }; #define to_dpu_crtc_state(x) \ container_of(x, struct dpu_crtc_state, base) /** * dpu_crtc_frame_pending - retun the number of pending frames * @crtc: Pointer to drm crtc object */ static inline int dpu_crtc_frame_pending(struct drm_crtc *crtc) { return crtc ? atomic_read(&to_dpu_crtc(crtc)->frame_pending) : -EINVAL; } /** * dpu_crtc_vblank - enable or disable vblanks for this crtc * @crtc: Pointer to drm crtc object * @en: true to enable vblanks, false to disable */ int dpu_crtc_vblank(struct drm_crtc *crtc, bool en); /** * dpu_crtc_vblank_callback - called on vblank irq, issues completion events * @crtc: Pointer to drm crtc object */ void dpu_crtc_vblank_callback(struct drm_crtc *crtc); /** * dpu_crtc_commit_kickoff - trigger kickoff of the commit for this crtc * @crtc: Pointer to drm crtc object */ void dpu_crtc_commit_kickoff(struct drm_crtc *crtc); /** * dpu_crtc_complete_commit - callback signalling completion of current commit * @crtc: Pointer to drm crtc object */ void dpu_crtc_complete_commit(struct drm_crtc *crtc); /** * dpu_crtc_init - create a new crtc object * @dev: dpu device * @plane: base plane * @cursor: cursor plane * @Return: new crtc object or error */ struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane, struct drm_plane *cursor); /** * dpu_crtc_register_custom_event - api for enabling/disabling crtc event * @kms: Pointer to dpu_kms * @crtc_drm: Pointer to crtc object * @event: Event that client is interested * @en: Flag to enable/disable the event */ int dpu_crtc_register_custom_event(struct dpu_kms *kms, struct drm_crtc *crtc_drm, u32 event, bool en); /** * dpu_crtc_get_intf_mode - get interface mode of the given crtc * @crtc: Pointert to crtc */ enum dpu_intf_mode dpu_crtc_get_intf_mode(struct drm_crtc *crtc); /** * dpu_crtc_get_client_type - check the crtc type- rt, nrt etc. * @crtc: Pointer to crtc */ static inline enum dpu_crtc_client_type dpu_crtc_get_client_type( struct drm_crtc *crtc) { return crtc && crtc->state ? RT_CLIENT : NRT_CLIENT; } #endif /* _DPU_CRTC_H_ */