1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2016 MediaTek Inc.
4  * Author: PoChun Lin <pochun.lin@mediatek.com>
5  */
6 
7 #include "mtk_vcodec_enc_drv.h"
8 #include "venc_ipi_msg.h"
9 #include "venc_vpu_if.h"
10 
handle_enc_init_msg(struct venc_vpu_inst * vpu,const void * data)11 static void handle_enc_init_msg(struct venc_vpu_inst *vpu, const void *data)
12 {
13 	const struct venc_vpu_ipi_msg_init *msg = data;
14 
15 	vpu->inst_addr = msg->vpu_inst_addr;
16 	vpu->vsi = mtk_vcodec_fw_map_dm_addr(vpu->ctx->dev->fw_handler,
17 					     msg->vpu_inst_addr);
18 
19 	/* Firmware version field value is unspecified on MT8173. */
20 	if (mtk_vcodec_fw_get_type(vpu->ctx->dev->fw_handler) == VPU)
21 		return;
22 
23 	/* Check firmware version. */
24 	mtk_venc_debug(vpu->ctx, "firmware version: 0x%x\n", msg->venc_abi_version);
25 	switch (msg->venc_abi_version) {
26 	case 1:
27 		break;
28 	default:
29 		mtk_venc_err(vpu->ctx, "unhandled firmware version 0x%x\n",
30 			     msg->venc_abi_version);
31 		vpu->failure = 1;
32 		break;
33 	}
34 }
35 
handle_enc_encode_msg(struct venc_vpu_inst * vpu,const void * data)36 static void handle_enc_encode_msg(struct venc_vpu_inst *vpu, const void *data)
37 {
38 	const struct venc_vpu_ipi_msg_enc *msg = data;
39 
40 	vpu->state = msg->state;
41 	vpu->bs_size = msg->bs_size;
42 	vpu->is_key_frm = msg->is_key_frm;
43 }
44 
vpu_enc_check_ap_inst(struct mtk_vcodec_enc_dev * enc_dev,struct venc_vpu_inst * vpu)45 static bool vpu_enc_check_ap_inst(struct mtk_vcodec_enc_dev *enc_dev, struct venc_vpu_inst *vpu)
46 {
47 	struct mtk_vcodec_enc_ctx *ctx;
48 	int ret = false;
49 
50 	list_for_each_entry(ctx, &enc_dev->ctx_list, list) {
51 		if (!IS_ERR_OR_NULL(ctx) && ctx->vpu_inst == vpu) {
52 			ret = true;
53 			break;
54 		}
55 	}
56 
57 	return ret;
58 }
59 
vpu_enc_ipi_handler(void * data,unsigned int len,void * priv)60 static void vpu_enc_ipi_handler(void *data, unsigned int len, void *priv)
61 {
62 	struct mtk_vcodec_enc_dev *enc_dev;
63 	const struct venc_vpu_ipi_msg_common *msg = data;
64 	struct venc_vpu_inst *vpu;
65 
66 	enc_dev = (struct mtk_vcodec_enc_dev *)priv;
67 	vpu = (struct venc_vpu_inst *)(unsigned long)msg->venc_inst;
68 	if (!priv || !vpu) {
69 		pr_err(MTK_DBG_V4L2_STR "venc_inst is NULL, did the SCP hang or crash?");
70 		return;
71 	}
72 
73 	mtk_venc_debug(vpu->ctx, "msg_id %x inst %p status %d", msg->msg_id, vpu, msg->status);
74 	if (!vpu_enc_check_ap_inst(enc_dev, vpu) || msg->msg_id < VPU_IPIMSG_ENC_INIT_DONE ||
75 	    msg->msg_id > VPU_IPIMSG_ENC_DEINIT_DONE) {
76 		mtk_v4l2_venc_err(vpu->ctx, "venc msg id not correctly => 0x%x", msg->msg_id);
77 		vpu->failure = -EINVAL;
78 		goto error;
79 	}
80 
81 	vpu->failure = (msg->status != VENC_IPI_MSG_STATUS_OK);
82 	if (vpu->failure) {
83 		mtk_venc_err(vpu->ctx, "vpu enc status failure %d", vpu->failure);
84 		goto error;
85 	}
86 
87 	switch (msg->msg_id) {
88 	case VPU_IPIMSG_ENC_INIT_DONE:
89 		handle_enc_init_msg(vpu, data);
90 		break;
91 	case VPU_IPIMSG_ENC_SET_PARAM_DONE:
92 		break;
93 	case VPU_IPIMSG_ENC_ENCODE_DONE:
94 		handle_enc_encode_msg(vpu, data);
95 		break;
96 	case VPU_IPIMSG_ENC_DEINIT_DONE:
97 		break;
98 	default:
99 		mtk_venc_err(vpu->ctx, "unknown msg id %x", msg->msg_id);
100 		break;
101 	}
102 
103 error:
104 	vpu->signaled = 1;
105 }
106 
vpu_enc_send_msg(struct venc_vpu_inst * vpu,void * msg,int len)107 static int vpu_enc_send_msg(struct venc_vpu_inst *vpu, void *msg,
108 			    int len)
109 {
110 	int status;
111 
112 	if (!vpu->ctx->dev->fw_handler) {
113 		mtk_venc_err(vpu->ctx, "inst dev is NULL");
114 		return -EINVAL;
115 	}
116 
117 	status = mtk_vcodec_fw_ipi_send(vpu->ctx->dev->fw_handler, vpu->id, msg,
118 					len, 2000);
119 	if (status) {
120 		mtk_venc_err(vpu->ctx, "vpu_ipi_send msg_id %x len %d fail %d",
121 			     *(uint32_t *)msg, len, status);
122 		return -EINVAL;
123 	}
124 	if (vpu->failure)
125 		return -EINVAL;
126 
127 	return 0;
128 }
129 
vpu_enc_init(struct venc_vpu_inst * vpu)130 int vpu_enc_init(struct venc_vpu_inst *vpu)
131 {
132 	int status;
133 	struct venc_ap_ipi_msg_init out;
134 
135 	init_waitqueue_head(&vpu->wq_hd);
136 	vpu->signaled = 0;
137 	vpu->failure = 0;
138 	vpu->ctx->vpu_inst = vpu;
139 
140 	status = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler, vpu->id,
141 					    vpu_enc_ipi_handler, "venc",
142 					    vpu->ctx->dev);
143 
144 	if (status) {
145 		mtk_venc_err(vpu->ctx, "vpu_ipi_register fail %d", status);
146 		return -EINVAL;
147 	}
148 
149 	memset(&out, 0, sizeof(out));
150 	out.msg_id = AP_IPIMSG_ENC_INIT;
151 	out.venc_inst = (unsigned long)vpu;
152 	if (vpu_enc_send_msg(vpu, &out, sizeof(out))) {
153 		mtk_venc_err(vpu->ctx, "AP_IPIMSG_ENC_INIT fail");
154 		return -EINVAL;
155 	}
156 
157 	return 0;
158 }
159 
venc_enc_param_crop_right(struct venc_vpu_inst * vpu,struct venc_enc_param * enc_prm)160 static unsigned int venc_enc_param_crop_right(struct venc_vpu_inst *vpu,
161 					      struct venc_enc_param *enc_prm)
162 {
163 	unsigned int img_crop_right = enc_prm->buf_width - enc_prm->width;
164 
165 	return img_crop_right % 16;
166 }
167 
venc_enc_param_crop_bottom(struct venc_enc_param * enc_prm)168 static unsigned int venc_enc_param_crop_bottom(struct venc_enc_param *enc_prm)
169 {
170 	return round_up(enc_prm->height, 16) - enc_prm->height;
171 }
172 
venc_enc_param_num_mb(struct venc_enc_param * enc_prm)173 static unsigned int venc_enc_param_num_mb(struct venc_enc_param *enc_prm)
174 {
175 	return DIV_ROUND_UP(enc_prm->width, 16) *
176 	       DIV_ROUND_UP(enc_prm->height, 16);
177 }
178 
vpu_enc_set_param(struct venc_vpu_inst * vpu,enum venc_set_param_type id,struct venc_enc_param * enc_param)179 int vpu_enc_set_param(struct venc_vpu_inst *vpu,
180 		      enum venc_set_param_type id,
181 		      struct venc_enc_param *enc_param)
182 {
183 	const bool is_ext = MTK_ENC_CTX_IS_EXT(vpu->ctx);
184 	size_t msg_size = is_ext ?
185 		sizeof(struct venc_ap_ipi_msg_set_param_ext) :
186 		sizeof(struct venc_ap_ipi_msg_set_param);
187 	struct venc_ap_ipi_msg_set_param_ext out;
188 
189 	mtk_venc_debug(vpu->ctx, "id %d ->", id);
190 
191 	memset(&out, 0, sizeof(out));
192 	out.base.msg_id = AP_IPIMSG_ENC_SET_PARAM;
193 	out.base.vpu_inst_addr = vpu->inst_addr;
194 	out.base.param_id = id;
195 	switch (id) {
196 	case VENC_SET_PARAM_ENC:
197 		if (is_ext) {
198 			out.base.data_item = 3;
199 			out.base.data[0] =
200 				venc_enc_param_crop_right(vpu, enc_param);
201 			out.base.data[1] =
202 				venc_enc_param_crop_bottom(enc_param);
203 			out.base.data[2] = venc_enc_param_num_mb(enc_param);
204 		} else {
205 			out.base.data_item = 0;
206 		}
207 		break;
208 	case VENC_SET_PARAM_FORCE_INTRA:
209 		out.base.data_item = 0;
210 		break;
211 	case VENC_SET_PARAM_ADJUST_BITRATE:
212 		out.base.data_item = 1;
213 		out.base.data[0] = enc_param->bitrate;
214 		break;
215 	case VENC_SET_PARAM_ADJUST_FRAMERATE:
216 		out.base.data_item = 1;
217 		out.base.data[0] = enc_param->frm_rate;
218 		break;
219 	case VENC_SET_PARAM_GOP_SIZE:
220 		out.base.data_item = 1;
221 		out.base.data[0] = enc_param->gop_size;
222 		break;
223 	case VENC_SET_PARAM_INTRA_PERIOD:
224 		out.base.data_item = 1;
225 		out.base.data[0] = enc_param->intra_period;
226 		break;
227 	case VENC_SET_PARAM_SKIP_FRAME:
228 		out.base.data_item = 0;
229 		break;
230 	default:
231 		mtk_venc_err(vpu->ctx, "id %d not supported", id);
232 		return -EINVAL;
233 	}
234 	if (vpu_enc_send_msg(vpu, &out, msg_size)) {
235 		mtk_venc_err(vpu->ctx, "AP_IPIMSG_ENC_SET_PARAM %d fail", id);
236 		return -EINVAL;
237 	}
238 
239 	mtk_venc_debug(vpu->ctx, "id %d <-", id);
240 
241 	return 0;
242 }
243 
vpu_enc_encode_32bits(struct venc_vpu_inst * vpu,unsigned int bs_mode,struct venc_frm_buf * frm_buf,struct mtk_vcodec_mem * bs_buf,struct venc_frame_info * frame_info)244 static int vpu_enc_encode_32bits(struct venc_vpu_inst *vpu,
245 				 unsigned int bs_mode,
246 				 struct venc_frm_buf *frm_buf,
247 				 struct mtk_vcodec_mem *bs_buf,
248 				 struct venc_frame_info *frame_info)
249 {
250 	const bool is_ext = MTK_ENC_CTX_IS_EXT(vpu->ctx);
251 	size_t msg_size = is_ext ?
252 		sizeof(struct venc_ap_ipi_msg_enc_ext) :
253 		sizeof(struct venc_ap_ipi_msg_enc);
254 	struct venc_ap_ipi_msg_enc_ext out;
255 
256 	mtk_venc_debug(vpu->ctx, "bs_mode %d ->", bs_mode);
257 
258 	memset(&out, 0, sizeof(out));
259 	out.base.msg_id = AP_IPIMSG_ENC_ENCODE;
260 	out.base.vpu_inst_addr = vpu->inst_addr;
261 	out.base.bs_mode = bs_mode;
262 	if (frm_buf) {
263 		if ((frm_buf->fb_addr[0].dma_addr % 16 == 0) &&
264 		    (frm_buf->fb_addr[1].dma_addr % 16 == 0) &&
265 		    (frm_buf->fb_addr[2].dma_addr % 16 == 0)) {
266 			out.base.input_addr[0] = frm_buf->fb_addr[0].dma_addr;
267 			out.base.input_addr[1] = frm_buf->fb_addr[1].dma_addr;
268 			out.base.input_addr[2] = frm_buf->fb_addr[2].dma_addr;
269 		} else {
270 			mtk_venc_err(vpu->ctx, "dma_addr not align to 16");
271 			return -EINVAL;
272 		}
273 	}
274 	if (bs_buf) {
275 		out.base.bs_addr = bs_buf->dma_addr;
276 		out.base.bs_size = bs_buf->size;
277 	}
278 	if (is_ext && frame_info) {
279 		out.data_item = 3;
280 		out.data[0] = frame_info->frm_count;
281 		out.data[1] = frame_info->skip_frm_count;
282 		out.data[2] = frame_info->frm_type;
283 	}
284 	if (vpu_enc_send_msg(vpu, &out, msg_size)) {
285 		mtk_venc_err(vpu->ctx, "AP_IPIMSG_ENC_ENCODE %d fail", bs_mode);
286 		return -EINVAL;
287 	}
288 
289 	return 0;
290 }
291 
vpu_enc_encode_34bits(struct venc_vpu_inst * vpu,unsigned int bs_mode,struct venc_frm_buf * frm_buf,struct mtk_vcodec_mem * bs_buf,struct venc_frame_info * frame_info)292 static int vpu_enc_encode_34bits(struct venc_vpu_inst *vpu,
293 				 unsigned int bs_mode,
294 				 struct venc_frm_buf *frm_buf,
295 				 struct mtk_vcodec_mem *bs_buf,
296 				 struct venc_frame_info *frame_info)
297 {
298 	struct venc_ap_ipi_msg_enc_ext_34 out;
299 	size_t msg_size = sizeof(struct venc_ap_ipi_msg_enc_ext_34);
300 
301 	mtk_venc_debug(vpu->ctx, "bs_mode %d ->", bs_mode);
302 
303 	memset(&out, 0, sizeof(out));
304 	out.msg_id = AP_IPIMSG_ENC_ENCODE;
305 	out.vpu_inst_addr = vpu->inst_addr;
306 	out.bs_mode = bs_mode;
307 
308 	if (frm_buf) {
309 		if ((frm_buf->fb_addr[0].dma_addr % 16 == 0) &&
310 		    (frm_buf->fb_addr[1].dma_addr % 16 == 0) &&
311 		    (frm_buf->fb_addr[2].dma_addr % 16 == 0)) {
312 			out.input_addr[0] = frm_buf->fb_addr[0].dma_addr;
313 			out.input_addr[1] = frm_buf->fb_addr[1].dma_addr;
314 			out.input_addr[2] = frm_buf->fb_addr[2].dma_addr;
315 		} else {
316 			mtk_venc_err(vpu->ctx, "dma_addr not align to 16");
317 			return -EINVAL;
318 		}
319 	}
320 	if (bs_buf) {
321 		out.bs_addr = bs_buf->dma_addr;
322 		out.bs_size = bs_buf->size;
323 	}
324 	if (frame_info) {
325 		out.data_item = 3;
326 		out.data[0] = frame_info->frm_count;
327 		out.data[1] = frame_info->skip_frm_count;
328 		out.data[2] = frame_info->frm_type;
329 	}
330 	if (vpu_enc_send_msg(vpu, &out, msg_size)) {
331 		mtk_venc_err(vpu->ctx, "AP_IPIMSG_ENC_ENCODE %d fail", bs_mode);
332 		return -EINVAL;
333 	}
334 
335 	return 0;
336 }
337 
vpu_enc_encode(struct venc_vpu_inst * vpu,unsigned int bs_mode,struct venc_frm_buf * frm_buf,struct mtk_vcodec_mem * bs_buf,struct venc_frame_info * frame_info)338 int vpu_enc_encode(struct venc_vpu_inst *vpu, unsigned int bs_mode,
339 		   struct venc_frm_buf *frm_buf,
340 		   struct mtk_vcodec_mem *bs_buf,
341 		   struct venc_frame_info *frame_info)
342 {
343 	int ret;
344 
345 	if (MTK_ENC_IOVA_IS_34BIT(vpu->ctx))
346 		ret = vpu_enc_encode_34bits(vpu, bs_mode,
347 					    frm_buf, bs_buf, frame_info);
348 	else
349 		ret = vpu_enc_encode_32bits(vpu, bs_mode,
350 					    frm_buf, bs_buf, frame_info);
351 
352 	if (ret)
353 		return ret;
354 
355 	mtk_venc_debug(vpu->ctx, "bs_mode %d state %d size %d key_frm %d <-",
356 		       bs_mode, vpu->state, vpu->bs_size, vpu->is_key_frm);
357 
358 	return 0;
359 }
360 
vpu_enc_deinit(struct venc_vpu_inst * vpu)361 int vpu_enc_deinit(struct venc_vpu_inst *vpu)
362 {
363 	struct venc_ap_ipi_msg_deinit out;
364 
365 	memset(&out, 0, sizeof(out));
366 	out.msg_id = AP_IPIMSG_ENC_DEINIT;
367 	out.vpu_inst_addr = vpu->inst_addr;
368 	if (vpu_enc_send_msg(vpu, &out, sizeof(out))) {
369 		mtk_venc_err(vpu->ctx, "AP_IPIMSG_ENC_DEINIT fail");
370 		return -EINVAL;
371 	}
372 
373 	return 0;
374 }
375