12  * the HVS at that timing, and feeds it to the encoder.
16  * responsible for writing the display list for the HVS channel that
85 	struct vc4_hvs *hvs = vc4->hvs;  in vc4_crtc_get_cob_allocation()  local
114 	struct vc4_hvs *hvs = vc4->hvs;  in vc4_crtc_get_scanout_position()  local
132 	 * pixelvalve by the HVS, and also the scaler status.  in vc4_crtc_get_scanout_position()
145 	/* Vertical position of hvs composed scanline. */  in vc4_crtc_get_scanout_position()
158 		if (vc4_hvs_get_fifo_frame_count(hvs, channel) % 2)  in vc4_crtc_get_scanout_position()
163 	/* This is the offset we need for translating hvs -> pv scanout pos. */  in vc4_crtc_get_scanout_position()
169 	/* HVS more than fifo_lines into frame for compositing? */  in vc4_crtc_get_scanout_position()
173 		 * from HVS. The actual PV scanout can not trail behind more  in vc4_crtc_get_scanout_position()
175 		 * in active scanout the HVS and PV work in lockstep wrt. HVS  in vc4_crtc_get_scanout_position()
178 		 * fifo, the HVS will immediately refill it, therefore  in vc4_crtc_get_scanout_position()
179 		 * incrementing vpos. Therefore we choose HVS read position -  in vc4_crtc_get_scanout_position()
189 	 * Less: This happens when we are in vblank and the HVS, after getting  in vc4_crtc_get_scanout_position()
193 	 * the fifo, so the fifo will be full quickly and the HVS has to pause.  in vc4_crtc_get_scanout_position()
217 		 * If the HVS fifo is not yet full then we know for certain  in vc4_crtc_get_scanout_position()
218 		 * we are at the very beginning of vblank, as the hvs just  in vc4_crtc_get_scanout_position()
251 	 * Pixels are pulled from the HVS if the number of bytes is  in vc4_get_fifo_full_level()
279 		 * set) and stall the HVS / PV, eventually resulting in  in vc4_get_fifo_full_level()
490 	struct vc4_hvs *hvs = vc4->hvs;  in require_hvs_enabled()  local
539 	vc4_hvs_stop_channel(vc4->hvs, channel);  in vc4_crtc_disable()
578 	channel = vc4_hvs_get_fifo_from_output(vc4->hvs, vc4_crtc->data->hvs_output);  in vc4_crtc_disable_at_boot()
827 	struct vc4_hvs *hvs = vc4->hvs;  in vc4_crtc_handle_page_flip()  local
849 		 * happens, the HVS will be using the previous display list with  in vc4_crtc_handle_page_flip()
854 			vc4_hvs_unmask_underrun(hvs, chan);  in vc4_crtc_handle_page_flip()
1132 		spin_lock_irqsave(&vc4->hvs->mm_lock, flags);  in vc4_crtc_destroy_state()
1134 		spin_unlock_irqrestore(&vc4->hvs->mm_lock, flags);  in vc4_crtc_destroy_state()