drivers/gpu/drm/amd/display/dc/hubp/dcn20/dcn20_hubp.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dc/hubp/dcn20/dcn20_hubp.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dc/hubp/dcn20/dcn20_hubp.c
Extension
.c
Size
66480 bytes
Lines
1728
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (address->grph.meta_addr.quad_part != 0) {
			REG_SET(DCSURF_PRIMARY_META_SURFACE_ADDRESS_HIGH, 0,
					PRIMARY_META_SURFACE_ADDRESS_HIGH,
					address->grph.meta_addr.high_part);

			REG_SET(DCSURF_PRIMARY_META_SURFACE_ADDRESS, 0,
					PRIMARY_META_SURFACE_ADDRESS,
					address->grph.meta_addr.low_part);
		}

		REG_SET(DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH, 0,
				PRIMARY_SURFACE_ADDRESS_HIGH,
				address->grph.addr.high_part);

		REG_SET(DCSURF_PRIMARY_SURFACE_ADDRESS, 0,
				PRIMARY_SURFACE_ADDRESS,
				address->grph.addr.low_part);
		break;
	case PLN_ADDR_TYPE_VIDEO_PROGRESSIVE:
		if (address->video_progressive.luma_addr.quad_part == 0
				|| address->video_progressive.chroma_addr.quad_part == 0)
			break;

		REG_UPDATE_4(DCSURF_SURFACE_CONTROL,
				PRIMARY_SURFACE_TMZ, address->tmz_surface,
				PRIMARY_SURFACE_TMZ_C, address->tmz_surface,
				PRIMARY_META_SURFACE_TMZ, address->tmz_surface,
				PRIMARY_META_SURFACE_TMZ_C, address->tmz_surface);

		if (address->video_progressive.luma_meta_addr.quad_part != 0) {
			REG_SET(DCSURF_PRIMARY_META_SURFACE_ADDRESS_HIGH_C, 0,
					PRIMARY_META_SURFACE_ADDRESS_HIGH_C,
					address->video_progressive.chroma_meta_addr.high_part);

			REG_SET(DCSURF_PRIMARY_META_SURFACE_ADDRESS_C, 0,
					PRIMARY_META_SURFACE_ADDRESS_C,
					address->video_progressive.chroma_meta_addr.low_part);

			REG_SET(DCSURF_PRIMARY_META_SURFACE_ADDRESS_HIGH, 0,
					PRIMARY_META_SURFACE_ADDRESS_HIGH,
					address->video_progressive.luma_meta_addr.high_part);

			REG_SET(DCSURF_PRIMARY_META_SURFACE_ADDRESS, 0,
					PRIMARY_META_SURFACE_ADDRESS,
					address->video_progressive.luma_meta_addr.low_part);
		}

		REG_SET(DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH_C, 0,
				PRIMARY_SURFACE_ADDRESS_HIGH_C,
				address->video_progressive.chroma_addr.high_part);

		REG_SET(DCSURF_PRIMARY_SURFACE_ADDRESS_C, 0,
				PRIMARY_SURFACE_ADDRESS_C,
				address->video_progressive.chroma_addr.low_part);

		REG_SET(DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH, 0,
				PRIMARY_SURFACE_ADDRESS_HIGH,
				address->video_progressive.luma_addr.high_part);

		REG_SET(DCSURF_PRIMARY_SURFACE_ADDRESS, 0,
				PRIMARY_SURFACE_ADDRESS,
				address->video_progressive.luma_addr.low_part);
		break;
	case PLN_ADDR_TYPE_GRPH_STEREO:
		if (address->grph_stereo.left_addr.quad_part == 0)
			break;
		if (address->grph_stereo.right_addr.quad_part == 0)
			break;

		REG_UPDATE_8(DCSURF_SURFACE_CONTROL,
				PRIMARY_SURFACE_TMZ, address->tmz_surface,
				PRIMARY_SURFACE_TMZ_C, address->tmz_surface,
				PRIMARY_META_SURFACE_TMZ, address->tmz_surface,
				PRIMARY_META_SURFACE_TMZ_C, address->tmz_surface,
				SECONDARY_SURFACE_TMZ, address->tmz_surface,
				SECONDARY_SURFACE_TMZ_C, address->tmz_surface,
				SECONDARY_META_SURFACE_TMZ, address->tmz_surface,
				SECONDARY_META_SURFACE_TMZ_C, address->tmz_surface);

		if (address->grph_stereo.right_meta_addr.quad_part != 0) {

			REG_SET(DCSURF_SECONDARY_META_SURFACE_ADDRESS_HIGH, 0,
					SECONDARY_META_SURFACE_ADDRESS_HIGH,
					address->grph_stereo.right_meta_addr.high_part);

			REG_SET(DCSURF_SECONDARY_META_SURFACE_ADDRESS, 0,
					SECONDARY_META_SURFACE_ADDRESS,
					address->grph_stereo.right_meta_addr.low_part);
		}
		if (address->grph_stereo.left_meta_addr.quad_part != 0) {

Annotation

Implementation Notes