Files
linux/drivers/gpu/drm/i915/display/intel_vdsc.h
Jouni Högander bb5f1cd101 drm/i915/dsc: Add helper for writing DSC Selective Update ET parameters
There are slice row per frame and pic height configuration in DSC Selective
Update Parameter Set 1 register. Add helper for configuring these.

v2:
  - Add WARN_ON_ONCE if vdsc instances per pipe > 2
  - instead of checking vdsc instances per pipe being > 1 check == 2

Bspec: 71709
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260304113011.626542-4-jouni.hogander@intel.com
(cherry picked from commit c8698d61ae)
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
[tursulin: fixup forward declaration conflict]
2026-03-10 08:26:12 +00:00

43 lines
1.8 KiB
C

/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2019 Intel Corporation
*/
#ifndef __INTEL_VDSC_H__
#define __INTEL_VDSC_H__
#include <linux/types.h>
struct drm_printer;
enum transcoder;
struct intel_crtc;
struct intel_crtc_state;
struct intel_dsb;
struct intel_encoder;
bool intel_dsc_source_support(const struct intel_crtc_state *crtc_state);
void intel_uncompressed_joiner_enable(const struct intel_crtc_state *crtc_state);
void intel_dsc_enable(const struct intel_crtc_state *crtc_state);
void intel_dsc_disable(const struct intel_crtc_state *crtc_state);
int intel_dsc_compute_params(struct intel_crtc_state *pipe_config);
void intel_dsc_enable_on_crtc(struct intel_crtc_state *crtc_state);
bool intel_dsc_enabled_on_link(const struct intel_crtc_state *crtc_state);
void intel_dsc_get_config(struct intel_crtc_state *crtc_state);
enum intel_display_power_domain
intel_dsc_power_domain(struct intel_crtc *crtc, enum transcoder cpu_transcoder);
struct intel_crtc *intel_dsc_get_bigjoiner_secondary(const struct intel_crtc *primary_crtc);
int intel_dsc_get_num_vdsc_instances(const struct intel_crtc_state *crtc_state);
void intel_dsc_dsi_pps_write(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state);
void intel_dsc_dp_pps_write(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state);
void intel_dsc_su_et_parameters_configure(struct intel_dsb *dsb, struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state, int su_lines);
void intel_vdsc_state_dump(struct drm_printer *p, int indent,
const struct intel_crtc_state *crtc_state);
int intel_vdsc_min_cdclk(const struct intel_crtc_state *crtc_state);
unsigned int intel_vdsc_prefill_lines(const struct intel_crtc_state *crtc_state);
#endif /* __INTEL_VDSC_H__ */