| 1 | /* SPDX-License-Identifier: MIT */ |
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| 2 | /* |
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| 3 | * Copyright © 2020 Intel Corporation |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef _INTEL_CRTC_H_ |
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| 7 | #define _INTEL_CRTC_H_ |
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| 8 | |
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| 9 | #include <linux/types.h> |
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| 10 | |
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| 11 | enum i9xx_plane_id; |
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| 12 | enum pipe; |
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| 13 | struct drm_device; |
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| 14 | struct drm_display_mode; |
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| 15 | struct drm_file; |
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| 16 | struct drm_pending_vblank_event; |
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| 17 | struct intel_atomic_state; |
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| 18 | struct intel_crtc; |
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| 19 | struct intel_crtc_state; |
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| 20 | struct intel_display; |
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| 21 | |
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| 22 | /* |
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| 23 | * FIXME: We should instead only take spinlocks once for the entire update |
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| 24 | * instead of once per mmio. |
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| 25 | */ |
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| 26 | #if IS_ENABLED(CONFIG_PROVE_LOCKING) |
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| 27 | #define VBLANK_EVASION_TIME_US 250 |
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| 28 | #else |
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| 29 | #define VBLANK_EVASION_TIME_US 100 |
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| 30 | #endif |
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| 31 | |
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| 32 | int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode, |
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| 33 | int usecs); |
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| 34 | int intel_scanlines_to_usecs(const struct drm_display_mode *adjusted_mode, |
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| 35 | int scanlines); |
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| 36 | void intel_crtc_arm_vblank_event(struct intel_crtc_state *crtc_state); |
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| 37 | void intel_crtc_prepare_vblank_event(struct intel_crtc_state *crtc_state, |
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| 38 | struct drm_pending_vblank_event **event); |
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| 39 | u32 intel_crtc_max_vblank_count(const struct intel_crtc_state *crtc_state); |
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| 40 | int intel_crtc_init(struct intel_display *display, enum pipe pipe); |
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| 41 | int intel_crtc_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data, |
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| 42 | struct drm_file *file_priv); |
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| 43 | struct intel_crtc_state *intel_crtc_state_alloc(struct intel_crtc *crtc); |
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| 44 | void intel_crtc_state_reset(struct intel_crtc_state *crtc_state, |
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| 45 | struct intel_crtc *crtc); |
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| 46 | u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc); |
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| 47 | void intel_crtc_vblank_on(const struct intel_crtc_state *crtc_state); |
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| 48 | void intel_crtc_vblank_off(const struct intel_crtc_state *crtc_state); |
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| 49 | void intel_pipe_update_start(struct intel_atomic_state *state, |
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| 50 | struct intel_crtc *crtc); |
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| 51 | void intel_pipe_update_end(struct intel_atomic_state *state, |
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| 52 | struct intel_crtc *crtc); |
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| 53 | void intel_wait_for_vblank_workers(struct intel_atomic_state *state); |
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| 54 | struct intel_crtc *intel_first_crtc(struct intel_display *display); |
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| 55 | struct intel_crtc *intel_crtc_for_pipe(struct intel_display *display, |
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| 56 | enum pipe pipe); |
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| 57 | void intel_wait_for_vblank_if_active(struct intel_display *display, |
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| 58 | enum pipe pipe); |
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| 59 | void intel_crtc_wait_for_next_vblank(struct intel_crtc *crtc); |
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| 60 | |
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| 61 | bool intel_any_crtc_enable_changed(struct intel_atomic_state *state); |
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| 62 | bool intel_crtc_enable_changed(const struct intel_crtc_state *old_crtc_state, |
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| 63 | const struct intel_crtc_state *new_crtc_state); |
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| 64 | bool intel_any_crtc_active_changed(struct intel_atomic_state *state); |
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| 65 | bool intel_crtc_active_changed(const struct intel_crtc_state *old_crtc_state, |
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| 66 | const struct intel_crtc_state *new_crtc_state); |
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| 67 | |
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| 68 | unsigned int intel_crtc_bw_num_active_planes(const struct intel_crtc_state *crtc_state); |
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| 69 | unsigned int intel_crtc_bw_data_rate(const struct intel_crtc_state *crtc_state); |
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| 70 | int intel_crtc_bw_min_cdclk(const struct intel_crtc_state *crtc_state); |
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| 71 | |
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| 72 | #endif |
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| 73 | |
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