drivers/gpu/drm/amd/display/dc/link/link_hwss_hpo_frl.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dc/link/link_hwss_hpo_frl.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dc/link/link_hwss_hpo_frl.c
Extension
.c
Size
2319 bytes
Lines
63
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 "link_hwss_hpo_frl.h"
#include "core_types.h"
#include "virtual/virtual_link_hwss.h"

static void setup_hpo_frl_stream_attribute(struct pipe_ctx *pipe_ctx)
{
	struct hpo_frl_stream_encoder *stream_enc = pipe_ctx->stream_res.hpo_frl_stream_enc;
	struct dc_stream_state *stream = pipe_ctx->stream;
	struct pipe_ctx *odm_pipe;
	int odm_combine_num_segments = 1;

	/* get number of ODM combine input segments */
	for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
		odm_combine_num_segments++;

	stream_enc->funcs->hdmi_frl_set_stream_attribute(
			stream_enc,
			&stream->timing,
			&stream->link->frl_link_settings.borrow_params,
			odm_combine_num_segments);
}

static const struct link_hwss hpo_frl_link_hwss = {
	.setup_stream_encoder = virtual_setup_stream_encoder,
	.reset_stream_encoder = virtual_reset_stream_encoder,
	.setup_stream_attribute = setup_hpo_frl_stream_attribute,
};

bool can_use_hpo_frl_link_hwss(const struct dc_link *link,
		const struct link_resource *link_res)
{
	return link_res->hpo_frl_link_enc != NULL;
}

const struct link_hwss *get_hpo_frl_link_hwss(void)
{
	return &hpo_frl_link_hwss;
}

Annotation

Implementation Notes