1/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
 2/* Copyright (c) 2023 Imagination Technologies Ltd. */
 3
 4#ifndef PVR_STREAM_H
 5#define PVR_STREAM_H
 6
 7#include <linux/bits.h>
 8#include <linux/limits.h>
 9#include <linux/types.h>
10
11struct pvr_device;
12
13struct pvr_job;
14
15enum pvr_stream_type {
16	PVR_STREAM_TYPE_GEOM = 0,
17	PVR_STREAM_TYPE_FRAG,
18	PVR_STREAM_TYPE_COMPUTE,
19	PVR_STREAM_TYPE_TRANSFER,
20	PVR_STREAM_TYPE_STATIC_RENDER_CONTEXT,
21	PVR_STREAM_TYPE_STATIC_COMPUTE_CONTEXT,
22
23	PVR_STREAM_TYPE_MAX
24};
25
26enum pvr_stream_size {
27	PVR_STREAM_SIZE_8 = 0,
28	PVR_STREAM_SIZE_16,
29	PVR_STREAM_SIZE_32,
30	PVR_STREAM_SIZE_64,
31	PVR_STREAM_SIZE_ARRAY,
32};
33
34#define PVR_FEATURE_NOT  BIT(31)
35#define PVR_FEATURE_NONE U32_MAX
36
37struct pvr_stream_def {
38	u32 offset;
39	enum pvr_stream_size size;
40	u32 array_size;
41	u32 feature;
42};
43
44struct pvr_stream_ext_def {
45	const struct pvr_stream_def *stream;
46	u32 stream_len;
47	u32 header_mask;
48	u32 quirk;
49};
50
51struct pvr_stream_ext_header {
52	const struct pvr_stream_ext_def *ext_streams;
53	u32 ext_streams_num;
54	u32 valid_mask;
55};
56
57struct pvr_stream_cmd_defs {
58	enum pvr_stream_type type;
59
60	const struct pvr_stream_def *main_stream;
61	u32 main_stream_len;
62
63	u32 ext_nr_headers;
64	const struct pvr_stream_ext_header *ext_headers;
65
66	size_t dest_size;
67};
68
69int
70pvr_stream_process(struct pvr_device *pvr_dev, const struct pvr_stream_cmd_defs *cmd_defs,
71		   void *stream, u32 stream_size, void *dest_out);
72void
73pvr_stream_create_musthave_masks(struct pvr_device *pvr_dev);
74
75#endif /* PVR_STREAM_H */