drivers/gpu/drm/amd/display/dc/hubp/dcn31/dcn31_hubp.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dc/hubp/dcn31/dcn31_hubp.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dc/hubp/dcn31/dcn31_hubp.c
Extension
.c
Size
4493 bytes
Lines
135
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 "dm_services.h"
#include "dce_calcs.h"
#include "reg_helper.h"
#include "basics/conversion.h"
#include "dcn31_hubp.h"

#define REG(reg)\
	hubp2->hubp_regs->reg

#define CTX \
	hubp2->base.ctx

#undef FN
#define FN(reg_name, field_name) \
	hubp2->hubp_shift->field_name, hubp2->hubp_mask->field_name

void hubp31_set_unbounded_requesting(struct hubp *hubp, bool enable)
{
	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);

	REG_UPDATE(DCHUBP_CNTL, HUBP_UNBOUNDED_REQ_MODE, enable);
	REG_UPDATE(CURSOR_CONTROL, CURSOR_REQ_MODE, 1);
}

void hubp31_soft_reset(struct hubp *hubp, bool reset)
{
	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);

	REG_UPDATE(DCHUBP_CNTL, HUBP_SOFT_RESET, reset);
}

static void hubp31_program_extended_blank(struct hubp *hubp,
					  unsigned int min_dst_y_next_start_optimized)
{
	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);

	REG_UPDATE(BLANK_OFFSET_1, MIN_DST_Y_NEXT_START, min_dst_y_next_start_optimized);
}

void hubp31_program_extended_blank_value(
	struct hubp *hubp, unsigned int min_dst_y_next_start_optimized)
{
	hubp31_program_extended_blank(hubp, min_dst_y_next_start_optimized);
}

uint32_t hubp31_get_det_config_error(struct hubp *hubp)
{
	uint32_t config_error = 0;
	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);

	REG_GET(DCHUBP_CNTL,
		HUBP_SEG_ALLOC_ERR_STATUS,
		&config_error);

	return config_error;
}

static struct hubp_funcs dcn31_hubp_funcs = {
	.hubp_enable_tripleBuffer = hubp2_enable_triplebuffer,
	.hubp_is_triplebuffer_enabled = hubp2_is_triplebuffer_enabled,
	.hubp_program_surface_flip_and_addr = hubp3_program_surface_flip_and_addr,
	.hubp_program_surface_config = hubp3_program_surface_config,
	.hubp_is_flip_pending = hubp2_is_flip_pending,
	.hubp_setup = hubp3_setup,
	.hubp_setup_interdependent = hubp2_setup_interdependent,
	.hubp_set_vm_system_aperture_settings = hubp3_set_vm_system_aperture_settings,
	.set_blank = hubp2_set_blank,
	.dcc_control = hubp3_dcc_control,
	.hubp_reset = hubp_reset,
	.mem_program_viewport = min_set_viewport,
	.set_cursor_attributes	= hubp2_cursor_set_attributes,
	.set_cursor_position	= hubp2_cursor_set_position,
	.hubp_clk_cntl = hubp2_clk_cntl,
	.hubp_vtg_sel = hubp2_vtg_sel,
	.dmdata_set_attributes = hubp3_dmdata_set_attributes,
	.dmdata_load = hubp2_dmdata_load,
	.dmdata_status_done = hubp2_dmdata_status_done,
	.hubp_read_state = hubp3_read_state,
	.hubp_clear_underflow = hubp2_clear_underflow,
	.hubp_set_flip_control_surface_gsl = hubp2_set_flip_control_surface_gsl,
	.hubp_init = hubp3_init,
	.set_unbounded_requesting = hubp31_set_unbounded_requesting,
	.hubp_soft_reset = hubp31_soft_reset,
	.hubp_set_flip_int = hubp1_set_flip_int,
	.hubp_in_blank = hubp1_in_blank,
	.program_extended_blank = hubp31_program_extended_blank,
	.hubp_clear_tiling = hubp3_clear_tiling,
	.hubp_read_reg_state = hubp3_read_reg_state,
};

Annotation

Implementation Notes