diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h new file mode 100644 index 000000000..9e7236ef3 --- /dev/null +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h @@ -0,0 +1,227 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. + * Copyright (C) 2013 Red Hat + * Author: Rob Clark <robdclark@gmail.com> + */ + +#ifndef __DPU_ENCODER_H__ +#define __DPU_ENCODER_H__ + +#include <drm/drm_crtc.h> +#include "dpu_hw_mdss.h" + +#define DPU_ENCODER_FRAME_EVENT_DONE BIT(0) +#define DPU_ENCODER_FRAME_EVENT_ERROR BIT(1) +#define DPU_ENCODER_FRAME_EVENT_PANEL_DEAD BIT(2) +#define DPU_ENCODER_FRAME_EVENT_IDLE BIT(3) + +#define IDLE_TIMEOUT (66 - 16/2) + +/** + * struct msm_display_info - defines display properties + * @intf_type: DRM_MODE_ENCODER_ type + * @num_of_h_tiles: Number of horizontal tiles in case of split interface + * @h_tile_instance: Controller instance used per tile. Number of elements is + * based on num_of_h_tiles + * @is_cmd_mode Boolean to indicate if the CMD mode is requested + * @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is + * used instead of panel TE in cmd mode panels + * @dsc: DSC configuration data for DSC-enabled displays + */ +struct msm_display_info { + int intf_type; + uint32_t num_of_h_tiles; + uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY]; + bool is_cmd_mode; + bool is_te_using_watchdog_timer; + struct drm_dsc_config *dsc; +}; + +/** + * dpu_encoder_assign_crtc - Link the encoder to the crtc it's assigned to + * @encoder: encoder pointer + * @crtc: crtc pointer + */ +void dpu_encoder_assign_crtc(struct drm_encoder *encoder, + struct drm_crtc *crtc); + +/** + * dpu_encoder_toggle_vblank_for_crtc - Toggles vblank interrupts on or off if + * the encoder is assigned to the given crtc + * @encoder: encoder pointer + * @crtc: crtc pointer + * @enable: true if vblank should be enabled + */ +void dpu_encoder_toggle_vblank_for_crtc(struct drm_encoder *encoder, + struct drm_crtc *crtc, bool enable); + +/** + * dpu_encoder_register_frame_event_callback - provide callback to encoder that + * will be called after the request is complete, or other events. + * @encoder: encoder pointer + * @cb: callback pointer, provide NULL to deregister + * @data: user data provided to callback + */ +void dpu_encoder_register_frame_event_callback(struct drm_encoder *encoder, + void (*cb)(void *, u32), void *data); + +/** + * dpu_encoder_prepare_for_kickoff - schedule double buffer flip of the ctl + * path (i.e. ctl flush and start) at next appropriate time. + * Immediately: if no previous commit is outstanding. + * Delayed: Block until next trigger can be issued. + * @encoder: encoder pointer + */ +void dpu_encoder_prepare_for_kickoff(struct drm_encoder *encoder); + +/** + * dpu_encoder_trigger_kickoff_pending - Clear the flush bits from previous + * kickoff and trigger the ctl prepare progress for command mode display. + * @encoder: encoder pointer + */ +void dpu_encoder_trigger_kickoff_pending(struct drm_encoder *encoder); + +/** + * dpu_encoder_kickoff - trigger a double buffer flip of the ctl path + * (i.e. ctl flush and start) immediately. + * @encoder: encoder pointer + */ +void dpu_encoder_kickoff(struct drm_encoder *encoder); + +/** + * dpu_encoder_wakeup_time - get the time of the next vsync + */ +int dpu_encoder_vsync_time(struct drm_encoder *drm_enc, ktime_t *wakeup_time); + +/** + * dpu_encoder_wait_for_event - Waits for encoder events + * @encoder: encoder pointer + * @event: event to wait for + * MSM_ENC_COMMIT_DONE - Wait for hardware to have flushed the current pending + * frames to hardware at a vblank or ctl_start + * Encoders will map this differently depending on the + * panel type. + * vid mode -> vsync_irq + * cmd mode -> ctl_start + * MSM_ENC_TX_COMPLETE - Wait for the hardware to transfer all the pixels to + * the panel. Encoders will map this differently + * depending on the panel type. + * vid mode -> vsync_irq + * cmd mode -> pp_done + * Returns: 0 on success, -EWOULDBLOCK if already signaled, error otherwise + */ +int dpu_encoder_wait_for_event(struct drm_encoder *drm_encoder, + enum msm_event_wait event); + +/* + * dpu_encoder_get_intf_mode - get interface mode of the given encoder + * @encoder: Pointer to drm encoder object + */ +enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder); + +/** + * dpu_encoder_virt_runtime_resume - pm runtime resume the encoder configs + * @encoder: encoder pointer + */ +void dpu_encoder_virt_runtime_resume(struct drm_encoder *encoder); + +/** + * dpu_encoder_init - initialize virtual encoder object + * @dev: Pointer to drm device structure + * @disp_info: Pointer to display information structure + * Returns: Pointer to newly created drm encoder + */ +struct drm_encoder *dpu_encoder_init( + struct drm_device *dev, + int drm_enc_mode); + +/** + * dpu_encoder_setup - setup dpu_encoder for the display probed + * @dev: Pointer to drm device structure + * @enc: Pointer to the drm_encoder + * @disp_info: Pointer to the display info + */ +int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc, + struct msm_display_info *disp_info); + +/** + * dpu_encoder_prepare_commit - prepare encoder at the very beginning of an + * atomic commit, before any registers are written + * @drm_enc: Pointer to previously created drm encoder structure + */ +void dpu_encoder_prepare_commit(struct drm_encoder *drm_enc); + +/** + * dpu_encoder_set_idle_timeout - set the idle timeout for video + * and command mode encoders. + * @drm_enc: Pointer to previously created drm encoder structure + * @idle_timeout: idle timeout duration in milliseconds + */ +void dpu_encoder_set_idle_timeout(struct drm_encoder *drm_enc, + u32 idle_timeout); +/** + * dpu_encoder_get_linecount - get interface line count for the encoder. + * @drm_enc: Pointer to previously created drm encoder structure + */ +int dpu_encoder_get_linecount(struct drm_encoder *drm_enc); + +/** + * dpu_encoder_get_vsync_count - get vsync count for the encoder. + * @drm_enc: Pointer to previously created drm encoder structure + */ +int dpu_encoder_get_vsync_count(struct drm_encoder *drm_enc); + +bool dpu_encoder_is_widebus_enabled(const struct drm_encoder *drm_enc); + +/** + * dpu_encoder_get_crc_values_cnt - get number of physical encoders contained + * in virtual encoder that can collect CRC values + * @drm_enc: Pointer to previously created drm encoder structure + * Returns: Number of physical encoders for given drm encoder + */ +int dpu_encoder_get_crc_values_cnt(const struct drm_encoder *drm_enc); + +/** + * dpu_encoder_setup_misr - enable misr calculations + * @drm_enc: Pointer to previously created drm encoder structure + */ +void dpu_encoder_setup_misr(const struct drm_encoder *drm_encoder); + +/** + * dpu_encoder_get_crc - get the crc value from interface blocks + * @drm_enc: Pointer to previously created drm encoder structure + * Returns: 0 on success, error otherwise + */ +int dpu_encoder_get_crc(const struct drm_encoder *drm_enc, u32 *crcs, int pos); + +/** + * dpu_encoder_use_dsc_merge - returns true if the encoder uses DSC merge topology. + * @drm_enc: Pointer to previously created drm encoder structure + */ +bool dpu_encoder_use_dsc_merge(struct drm_encoder *drm_enc); + +/** + * dpu_encoder_prepare_wb_job - prepare writeback job for the encoder. + * @drm_enc: Pointer to previously created drm encoder structure + * @job: Pointer to the current drm writeback job + */ +void dpu_encoder_prepare_wb_job(struct drm_encoder *drm_enc, + struct drm_writeback_job *job); + +/** + * dpu_encoder_cleanup_wb_job - cleanup writeback job for the encoder. + * @drm_enc: Pointer to previously created drm encoder structure + * @job: Pointer to the current drm writeback job + */ +void dpu_encoder_cleanup_wb_job(struct drm_encoder *drm_enc, + struct drm_writeback_job *job); + +/** + * dpu_encoder_is_valid_for_commit - check if encode has valid parameters for commit. + * @drm_enc: Pointer to drm encoder structure + */ +bool dpu_encoder_is_valid_for_commit(struct drm_encoder *drm_enc); + +#endif /* __DPU_ENCODER_H__ */ |