1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (C) 2018 Linaro Ltd.
4  *
5  * Author: Stanimir Varbanov <stanimir.varbanov@linaro.org>
6  */
7 #include <linux/bitops.h>
8 #include <linux/kernel.h>
9 
10 #include "core.h"
11 #include "hfi_helper.h"
12 #include "hfi_parser.h"
13 
14 typedef void (*func)(struct venus_caps *cap, const void *data,
15 		     unsigned int size);
16 
17 static void init_codecs(struct venus_core *core)
18 {
19 	struct venus_caps *caps = core->caps, *cap;
20 	unsigned long bit;
21 
22 	for_each_set_bit(bit, &core->dec_codecs, MAX_CODEC_NUM) {
23 		cap = &caps[core->codecs_count++];
24 		cap->codec = BIT(bit);
25 		cap->domain = VIDC_SESSION_TYPE_DEC;
26 		cap->valid = false;
27 	}
28 
29 	for_each_set_bit(bit, &core->enc_codecs, MAX_CODEC_NUM) {
30 		cap = &caps[core->codecs_count++];
31 		cap->codec = BIT(bit);
32 		cap->domain = VIDC_SESSION_TYPE_ENC;
33 		cap->valid = false;
34 	}
35 }
36 
37 static void for_each_codec(struct venus_caps *caps, unsigned int caps_num,
38 			   u32 codecs, u32 domain, func cb, void *data,
39 			   unsigned int size)
40 {
41 	struct venus_caps *cap;
42 	unsigned int i;
43 
44 	for (i = 0; i < caps_num; i++) {
45 		cap = &caps[i];
46 		if (cap->valid && cap->domain == domain)
47 			continue;
48 		if (cap->codec & codecs && cap->domain == domain)
49 			cb(cap, data, size);
50 	}
51 }
52 
53 static void
54 fill_buf_mode(struct venus_caps *cap, const void *data, unsigned int num)
55 {
56 	const u32 *type = data;
57 
58 	if (*type == HFI_BUFFER_MODE_DYNAMIC)
59 		cap->cap_bufs_mode_dynamic = true;
60 }
61 
62 static void
63 parse_alloc_mode(struct venus_core *core, u32 codecs, u32 domain, void *data)
64 {
65 	struct hfi_buffer_alloc_mode_supported *mode = data;
66 	u32 num_entries = mode->num_entries;
67 	u32 *type;
68 
69 	if (num_entries > MAX_ALLOC_MODE_ENTRIES)
70 		return;
71 
72 	type = mode->data;
73 
74 	while (num_entries--) {
75 		if (mode->buffer_type == HFI_BUFFER_OUTPUT ||
76 		    mode->buffer_type == HFI_BUFFER_OUTPUT2)
77 			for_each_codec(core->caps, ARRAY_SIZE(core->caps),
78 				       codecs, domain, fill_buf_mode, type, 1);
79 
80 		type++;
81 	}
82 }
83 
84 static void fill_profile_level(struct venus_caps *cap, const void *data,
85 			       unsigned int num)
86 {
87 	const struct hfi_profile_level *pl = data;
88 
89 	memcpy(&cap->pl[cap->num_pl], pl, num * sizeof(*pl));
90 	cap->num_pl += num;
91 }
92 
93 static void
94 parse_profile_level(struct venus_core *core, u32 codecs, u32 domain, void *data)
95 {
96 	struct hfi_profile_level_supported *pl = data;
97 	struct hfi_profile_level *proflevel = pl->profile_level;
98 	struct hfi_profile_level pl_arr[HFI_MAX_PROFILE_COUNT] = {};
99 
100 	if (pl->profile_count > HFI_MAX_PROFILE_COUNT)
101 		return;
102 
103 	memcpy(pl_arr, proflevel, pl->profile_count * sizeof(*proflevel));
104 
105 	for_each_codec(core->caps, ARRAY_SIZE(core->caps), codecs, domain,
106 		       fill_profile_level, pl_arr, pl->profile_count);
107 }
108 
109 static void
110 fill_caps(struct venus_caps *cap, const void *data, unsigned int num)
111 {
112 	const struct hfi_capability *caps = data;
113 
114 	memcpy(&cap->caps[cap->num_caps], caps, num * sizeof(*caps));
115 	cap->num_caps += num;
116 }
117 
118 static void
119 parse_caps(struct venus_core *core, u32 codecs, u32 domain, void *data)
120 {
121 	struct hfi_capabilities *caps = data;
122 	struct hfi_capability *cap = caps->data;
123 	u32 num_caps = caps->num_capabilities;
124 	struct hfi_capability caps_arr[MAX_CAP_ENTRIES] = {};
125 
126 	if (num_caps > MAX_CAP_ENTRIES)
127 		return;
128 
129 	memcpy(caps_arr, cap, num_caps * sizeof(*cap));
130 
131 	for_each_codec(core->caps, ARRAY_SIZE(core->caps), codecs, domain,
132 		       fill_caps, caps_arr, num_caps);
133 }
134 
135 static void fill_raw_fmts(struct venus_caps *cap, const void *fmts,
136 			  unsigned int num_fmts)
137 {
138 	const struct raw_formats *formats = fmts;
139 
140 	memcpy(&cap->fmts[cap->num_fmts], formats, num_fmts * sizeof(*formats));
141 	cap->num_fmts += num_fmts;
142 }
143 
144 static void
145 parse_raw_formats(struct venus_core *core, u32 codecs, u32 domain, void *data)
146 {
147 	struct hfi_uncompressed_format_supported *fmt = data;
148 	struct hfi_uncompressed_plane_info *pinfo = fmt->plane_info;
149 	struct hfi_uncompressed_plane_constraints *constr;
150 	struct raw_formats rawfmts[MAX_FMT_ENTRIES] = {};
151 	u32 entries = fmt->format_entries;
152 	unsigned int i = 0;
153 	u32 num_planes;
154 
155 	while (entries) {
156 		num_planes = pinfo->num_planes;
157 
158 		rawfmts[i].fmt = pinfo->format;
159 		rawfmts[i].buftype = fmt->buffer_type;
160 		i++;
161 
162 		if (pinfo->num_planes > MAX_PLANES)
163 			break;
164 
165 		pinfo = (void *)pinfo + sizeof(*constr) * num_planes +
166 			2 * sizeof(u32);
167 		entries--;
168 	}
169 
170 	for_each_codec(core->caps, ARRAY_SIZE(core->caps), codecs, domain,
171 		       fill_raw_fmts, rawfmts, i);
172 }
173 
174 static void parse_codecs(struct venus_core *core, void *data)
175 {
176 	struct hfi_codec_supported *codecs = data;
177 
178 	core->dec_codecs = codecs->dec_codecs;
179 	core->enc_codecs = codecs->enc_codecs;
180 
181 	if (IS_V1(core)) {
182 		core->dec_codecs &= ~HFI_VIDEO_CODEC_HEVC;
183 		core->dec_codecs &= ~HFI_VIDEO_CODEC_SPARK;
184 	}
185 }
186 
187 static void parse_max_sessions(struct venus_core *core, const void *data)
188 {
189 	const struct hfi_max_sessions_supported *sessions = data;
190 
191 	core->max_sessions_supported = sessions->max_sessions;
192 }
193 
194 static void parse_codecs_mask(u32 *codecs, u32 *domain, void *data)
195 {
196 	struct hfi_codec_mask_supported *mask = data;
197 
198 	*codecs = mask->codecs;
199 	*domain = mask->video_domains;
200 }
201 
202 static void parser_init(struct venus_inst *inst, u32 *codecs, u32 *domain)
203 {
204 	if (!inst || !IS_V1(inst->core))
205 		return;
206 
207 	*codecs = inst->hfi_codec;
208 	*domain = inst->session_type;
209 }
210 
211 static void parser_fini(struct venus_inst *inst, u32 codecs, u32 domain)
212 {
213 	struct venus_caps *caps, *cap;
214 	unsigned int i;
215 	u32 dom;
216 
217 	if (!inst || !IS_V1(inst->core))
218 		return;
219 
220 	caps = inst->core->caps;
221 	dom = inst->session_type;
222 
223 	for (i = 0; i < MAX_CODEC_NUM; i++) {
224 		cap = &caps[i];
225 		if (cap->codec & codecs && cap->domain == dom)
226 			cap->valid = true;
227 	}
228 }
229 
230 u32 hfi_parser(struct venus_core *core, struct venus_inst *inst, void *buf,
231 	       u32 size)
232 {
233 	unsigned int words_count = size >> 2;
234 	u32 *word = buf, *data, codecs = 0, domain = 0;
235 
236 	if (size % 4)
237 		return HFI_ERR_SYS_INSUFFICIENT_RESOURCES;
238 
239 	parser_init(inst, &codecs, &domain);
240 
241 	while (words_count) {
242 		data = word + 1;
243 
244 		switch (*word) {
245 		case HFI_PROPERTY_PARAM_CODEC_SUPPORTED:
246 			parse_codecs(core, data);
247 			init_codecs(core);
248 			break;
249 		case HFI_PROPERTY_PARAM_MAX_SESSIONS_SUPPORTED:
250 			parse_max_sessions(core, data);
251 			break;
252 		case HFI_PROPERTY_PARAM_CODEC_MASK_SUPPORTED:
253 			parse_codecs_mask(&codecs, &domain, data);
254 			break;
255 		case HFI_PROPERTY_PARAM_UNCOMPRESSED_FORMAT_SUPPORTED:
256 			parse_raw_formats(core, codecs, domain, data);
257 			break;
258 		case HFI_PROPERTY_PARAM_CAPABILITY_SUPPORTED:
259 			parse_caps(core, codecs, domain, data);
260 			break;
261 		case HFI_PROPERTY_PARAM_PROFILE_LEVEL_SUPPORTED:
262 			parse_profile_level(core, codecs, domain, data);
263 			break;
264 		case HFI_PROPERTY_PARAM_BUFFER_ALLOC_MODE_SUPPORTED:
265 			parse_alloc_mode(core, codecs, domain, data);
266 			break;
267 		default:
268 			break;
269 		}
270 
271 		word++;
272 		words_count--;
273 	}
274 
275 	parser_fini(inst, codecs, domain);
276 
277 	return HFI_ERR_NONE;
278 }
279