drivers/gpu/drm/amd/display/dc/opp/dcn35/dcn35_opp.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dc/opp/dcn35/dcn35_opp.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dc/opp/dcn35/dcn35_opp.c
Extension
.c
Size
2712 bytes
Lines
67
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

#include "dcn35_opp.h"
#include "reg_helper.h"

#define REG(reg) ((const struct dcn35_opp_registers *)(oppn20->regs))->reg

#undef FN
#define FN(reg_name, field_name)                                           \
	((const struct dcn35_opp_shift *)(oppn20->opp_shift))->field_name, \
		((const struct dcn35_opp_mask *)(oppn20->opp_mask))->field_name

#define CTX oppn20->base.ctx

void dcn35_opp_construct(struct dcn20_opp *oppn20, struct dc_context *ctx,
			 uint32_t inst, const struct dcn35_opp_registers *regs,
			 const struct dcn35_opp_shift *opp_shift,
			 const struct dcn35_opp_mask *opp_mask)
{
	dcn20_opp_construct(oppn20, ctx, inst,
			    (const struct dcn20_opp_registers *)regs,
			    (const struct dcn20_opp_shift *)opp_shift,
			    (const struct dcn20_opp_mask *)opp_mask);
}

void dcn35_opp_set_fgcg(struct dcn20_opp *oppn20, bool enable)
{
	REG_UPDATE(OPP_TOP_CLK_CONTROL, OPP_FGCG_REP_DIS, !enable);
}

void dcn35_opp_read_reg_state(struct output_pixel_processor *opp, struct dcn_opp_reg_state *opp_reg_state)
{
	struct dcn20_opp *oppn20 = TO_DCN20_OPP(opp);

	opp_reg_state->dpg_control = REG_READ(DPG_CONTROL);
	opp_reg_state->fmt_control = REG_READ(FMT_CONTROL);
	opp_reg_state->opp_abm_control = REG_READ(OPP_ABM_CONTROL);
	opp_reg_state->opp_pipe_control = REG_READ(OPP_PIPE_CONTROL);
	opp_reg_state->opp_pipe_crc_control = REG_READ(OPP_PIPE_CRC_CONTROL);
	opp_reg_state->oppbuf_control = REG_READ(OPPBUF_CONTROL);
	opp_reg_state->dscrm_dsc_forward_config = REG_READ(DSCRM_DSC_FORWARD_CONFIG);
}

Annotation

Implementation Notes