skl_prefill.h

 1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2025 Intel Corporation
 4 */
 5
 6#ifndef __SKL_PREFILL_H__
 7#define __SKL_PREFILL_H__
 8
 9#include <linux/types.h>
10
11struct intel_crtc_state;
12
13struct skl_prefill_ctx {
14	/* .16 scanlines */
15	struct {
16		unsigned int fixed;
17		unsigned int wm0;
18		unsigned int scaler_1st;
19		unsigned int scaler_2nd;
20		unsigned int dsc;
21		unsigned int full;
22	} prefill;
23
24	/* .16 adjustment factors */
25	struct {
26		unsigned int cdclk;
27		unsigned int scaler_1st;
28		unsigned int scaler_2nd;
29	} adj;
30};
31
32void skl_prefill_init_worst(struct skl_prefill_ctx *ctx,
33			    const struct intel_crtc_state *crtc_state);
34void skl_prefill_init(struct skl_prefill_ctx *ctx,
35		      const struct intel_crtc_state *crtc_state);
36
37bool skl_prefill_vblank_too_short(const struct skl_prefill_ctx *ctx,
38				  const struct intel_crtc_state *crtc_state,
39				  unsigned int latency_us);
40int skl_prefill_min_guardband(const struct skl_prefill_ctx *ctx,
41			      const struct intel_crtc_state *crtc_state,
42			      unsigned int latency_us);
43int skl_prefill_min_cdclk(const struct skl_prefill_ctx *ctx,
44			  const struct intel_crtc_state *crtc_state);
45
46#endif /* __SKL_PREFILL_H__ */