drm/vc4/vc4_plane.c

9  * Each DRM plane is a layer of pixels being scanned out by the HVS.
11  * At atomic modeset check time, we compute the HVS display element
15  * into the region of the HVS that it has allocated for us.
33 	u32 hvs; /* HVS_FORMAT_* */  member
39 		.hvs = HVS_PIXEL_FORMAT_RGBA8888,
45 		.hvs = HVS_PIXEL_FORMAT_RGBA8888,
51 		.hvs = HVS_PIXEL_FORMAT_RGBA8888,
57 		.hvs = HVS_PIXEL_FORMAT_RGBA8888,
63 		.hvs = HVS_PIXEL_FORMAT_RGB565,
68 		.hvs = HVS_PIXEL_FORMAT_RGB565,
73 		.hvs = HVS_PIXEL_FORMAT_RGBA5551,
78 		.hvs = HVS_PIXEL_FORMAT_RGBA5551,
83 		.hvs = HVS_PIXEL_FORMAT_RGB888,
88 		.hvs = HVS_PIXEL_FORMAT_RGB888,
93 		.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE,
98 		.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE,
103 		.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE,
108 		.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE,
113 		.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_2PLANE,
118 		.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_2PLANE,
123 		.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_2PLANE,
128 		.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_2PLANE,
199 		spin_lock_irqsave(&vc4->hvs->mm_lock, irqflags);  in vc4_plane_destroy_state()
201 		spin_unlock_irqrestore(&vc4->hvs->mm_lock, irqflags);  in vc4_plane_destroy_state()
481 	lbm = roundup(lbm, vc4->hvs->hvs5 ? 128 : 64);  in vc4_lbm_size()
484 	lbm /= vc4->hvs->hvs5 ? 4 : 2;  in vc4_lbm_size()
539 	/* The HVS is able to process 2 pixels/cycle when scaling the source,  in vc4_plane_calc_load()
544 	 * HVS load is expressed in clk-cycles/sec (AKA Hz).  in vc4_plane_calc_load()
595 	/* Allocate the LBM memory that the HVS will use for temporary  in vc4_plane_allocate_lbm()
601 		spin_lock_irqsave(&vc4->hvs->mm_lock, irqflags);  in vc4_plane_allocate_lbm()
602 		ret = drm_mm_insert_node_generic(&vc4->hvs->lbm_mm,  in vc4_plane_allocate_lbm()
605 						 vc4->hvs->hvs5 ? 64 : 32,  in vc4_plane_allocate_lbm()
607 		spin_unlock_irqrestore(&vc4->hvs->mm_lock, irqflags);  in vc4_plane_allocate_lbm()
639 	u32 hvs_format = format->hvs;  in vc4_plane_mode_set()
714 		 * SCALER_PITCH0_TILE_Y_OFFSET tells HVS how to walk from that  in vc4_plane_mode_set()
724 		 * SCALER_PITCH0_TILE_LINE_DIR flag to tell HVS that all lines  in vc4_plane_mode_set()
826 	if (!vc4->hvs->hvs5) {  in vc4_plane_mode_set()
871 		/* Position Word 3: Context.  Written by the HVS. */  in vc4_plane_mode_set()
937 		/* Position Word 3: Context.  Written by the HVS. */  in vc4_plane_mode_set()
950 	/* Pointer Context Word 0/1/2: Written by the HVS */  in vc4_plane_mode_set()
1006 			u32 kernel = VC4_SET_FIELD(vc4->hvs->mitchell_netravali_filter.start,  in vc4_plane_mode_set()
1189 	 * because that would smash the context data that the HVS is  in vc4_plane_atomic_async_update()
1398 	 * the HVS (16k) and how small an plane can be (28 bytes).  in vc4_plane_create_additional_planes()