intel_dsb.h

 1/* SPDX-License-Identifier: MIT
 2 *
 3 * Copyright © 2019 Intel Corporation
 4 */
 5
 6#ifndef _INTEL_DSB_H
 7#define _INTEL_DSB_H
 8
 9#include <linux/types.h>
10
11#include "i915_reg_defs.h"
12
13struct intel_atomic_state;
14struct intel_crtc;
15struct intel_crtc_state;
16struct intel_display;
17struct intel_dsb;
18
19enum pipe;
20
21enum intel_dsb_id {
22	INTEL_DSB_0,
23	INTEL_DSB_1,
24	INTEL_DSB_2,
25
26	I915_MAX_DSBS,
27};
28
29unsigned int intel_dsb_size(struct intel_dsb *dsb);
30unsigned int intel_dsb_head(struct intel_dsb *dsb);
31struct intel_dsb *intel_dsb_prepare(struct intel_atomic_state *state,
32				    struct intel_crtc *crtc,
33				    enum intel_dsb_id dsb_id,
34				    unsigned int max_cmds);
35void intel_dsb_finish(struct intel_dsb *dsb);
36void intel_dsb_gosub_finish(struct intel_dsb *dsb);
37void intel_dsb_cleanup(struct intel_dsb *dsb);
38int intel_dsb_exec_time_us(void);
39void intel_dsb_reg_write(struct intel_dsb *dsb,
40			 i915_reg_t reg, u32 val);
41void intel_dsb_reg_write_indexed(struct intel_dsb *dsb,
42				 i915_reg_t reg, u32 val);
43void intel_dsb_reg_write_masked(struct intel_dsb *dsb,
44				i915_reg_t reg, u32 mask, u32 val);
45void intel_dsb_noop(struct intel_dsb *dsb, int count);
46void intel_dsb_nonpost_start(struct intel_dsb *dsb);
47void intel_dsb_nonpost_end(struct intel_dsb *dsb);
48void intel_dsb_interrupt(struct intel_dsb *dsb);
49void intel_dsb_wait_usec(struct intel_dsb *dsb, int count);
50void intel_dsb_wait_vblanks(struct intel_dsb *dsb, int count);
51void intel_dsb_wait_for_delayed_vblank(struct intel_atomic_state *state,
52				       struct intel_dsb *dsb);
53void intel_dsb_wait_scanline_in(struct intel_atomic_state *state,
54				struct intel_dsb *dsb,
55				int lower, int upper);
56void intel_dsb_wait_scanline_out(struct intel_atomic_state *state,
57				 struct intel_dsb *dsb,
58				 int lower, int upper);
59void intel_dsb_vblank_evade(struct intel_atomic_state *state,
60			    struct intel_dsb *dsb);
61void intel_dsb_poll(struct intel_dsb *dsb,
62		    i915_reg_t reg, u32 mask, u32 val,
63		    int wait_us, int count);
64void intel_dsb_gosub(struct intel_dsb *dsb,
65		     struct intel_dsb *sub_dsb);
66void intel_dsb_chain(struct intel_atomic_state *state,
67		     struct intel_dsb *dsb,
68		     struct intel_dsb *chained_dsb,
69		     bool wait_for_vblank);
70
71void intel_dsb_commit(struct intel_dsb *dsb);
72void intel_dsb_wait(struct intel_dsb *dsb);
73
74void intel_dsb_irq_handler(struct intel_display *display,
75			   enum pipe pipe, enum intel_dsb_id dsb_id);
76
77#endif