1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2021 MediaTek Inc.
4 * Author: Yunfei Dong <yunfei.dong@mediatek.com>
5 */
6
7 #include <linux/slab.h>
8 #include <media/v4l2-mem2mem.h>
9 #include <media/videobuf2-dma-contig.h>
10 #include <uapi/linux/v4l2-controls.h>
11
12 #include "../mtk_vcodec_dec.h"
13 #include "../../common/mtk_vcodec_intr.h"
14 #include "../vdec_drv_base.h"
15 #include "../vdec_drv_if.h"
16 #include "../vdec_vpu_if.h"
17
18 /* Decoding picture buffer size (3 reference frames plus current frame) */
19 #define VP8_DPB_SIZE 4
20
21 /* HW working buffer size (bytes) */
22 #define VP8_SEG_ID_SZ SZ_256K
23 #define VP8_PP_WRAPY_SZ SZ_64K
24 #define VP8_PP_WRAPC_SZ SZ_64K
25 #define VP8_VLD_PRED_SZ SZ_64K
26
27 /**
28 * struct vdec_vp8_slice_info - decode misc information
29 *
30 * @vld_wrapper_dma: vld wrapper dma address
31 * @seg_id_buf_dma: seg id dma address
32 * @wrap_y_dma: wrap y dma address
33 * @wrap_c_dma: wrap y dma address
34 * @cur_y_fb_dma: current plane Y frame buffer dma address
35 * @cur_c_fb_dma: current plane C frame buffer dma address
36 * @bs_dma: bitstream dma address
37 * @bs_sz: bitstream size
38 * @resolution_changed:resolution change flag 1 - changed, 0 - not change
39 * @frame_header_type: current frame header type
40 * @wait_key_frame: wait key frame coming
41 * @crc: used to check whether hardware's status is right
42 * @reserved: reserved, currently unused
43 */
44 struct vdec_vp8_slice_info {
45 u64 vld_wrapper_dma;
46 u64 seg_id_buf_dma;
47 u64 wrap_y_dma;
48 u64 wrap_c_dma;
49 u64 cur_y_fb_dma;
50 u64 cur_c_fb_dma;
51 u64 bs_dma;
52 u32 bs_sz;
53 u32 resolution_changed;
54 u32 frame_header_type;
55 u32 crc[8];
56 u32 reserved;
57 };
58
59 /**
60 * struct vdec_vp8_slice_dpb_info - vp8 reference information
61 *
62 * @y_dma_addr: Y bitstream physical address
63 * @c_dma_addr: CbCr bitstream physical address
64 * @reference_flag: reference picture flag
65 * @reserved: 64bit align
66 */
67 struct vdec_vp8_slice_dpb_info {
68 dma_addr_t y_dma_addr;
69 dma_addr_t c_dma_addr;
70 int reference_flag;
71 int reserved;
72 };
73
74 /**
75 * struct vdec_vp8_slice_vsi - VPU shared information
76 *
77 * @dec: decoding information
78 * @pic: picture information
79 * @vp8_dpb_info: reference buffer information
80 */
81 struct vdec_vp8_slice_vsi {
82 struct vdec_vp8_slice_info dec;
83 struct vdec_pic_info pic;
84 struct vdec_vp8_slice_dpb_info vp8_dpb_info[3];
85 };
86
87 /**
88 * struct vdec_vp8_slice_inst - VP8 decoder instance
89 *
90 * @seg_id_buf: seg buffer
91 * @wrap_y_buf: wrapper y buffer
92 * @wrap_c_buf: wrapper c buffer
93 * @vld_wrapper_buf: vld wrapper buffer
94 * @ctx: V4L2 context
95 * @vpu: VPU instance for decoder
96 * @vsi: VPU share information
97 */
98 struct vdec_vp8_slice_inst {
99 struct mtk_vcodec_mem seg_id_buf;
100 struct mtk_vcodec_mem wrap_y_buf;
101 struct mtk_vcodec_mem wrap_c_buf;
102 struct mtk_vcodec_mem vld_wrapper_buf;
103 struct mtk_vcodec_dec_ctx *ctx;
104 struct vdec_vpu_inst vpu;
105 struct vdec_vp8_slice_vsi *vsi;
106 };
107
vdec_vp8_slice_get_ctrl_ptr(struct mtk_vcodec_dec_ctx * ctx,int id)108 static void *vdec_vp8_slice_get_ctrl_ptr(struct mtk_vcodec_dec_ctx *ctx, int id)
109 {
110 struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id);
111
112 if (!ctrl)
113 return ERR_PTR(-EINVAL);
114
115 return ctrl->p_cur.p;
116 }
117
vdec_vp8_slice_get_pic_info(struct vdec_vp8_slice_inst * inst)118 static void vdec_vp8_slice_get_pic_info(struct vdec_vp8_slice_inst *inst)
119 {
120 struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
121 unsigned int data[3];
122
123 data[0] = ctx->picinfo.pic_w;
124 data[1] = ctx->picinfo.pic_h;
125 data[2] = ctx->capture_fourcc;
126 vpu_dec_get_param(&inst->vpu, data, 3, GET_PARAM_PIC_INFO);
127
128 ctx->picinfo.buf_w = ALIGN(ctx->picinfo.pic_w, 64);
129 ctx->picinfo.buf_h = ALIGN(ctx->picinfo.pic_h, 64);
130 ctx->picinfo.fb_sz[0] = inst->vpu.fb_sz[0];
131 ctx->picinfo.fb_sz[1] = inst->vpu.fb_sz[1];
132
133 inst->vsi->pic.pic_w = ctx->picinfo.pic_w;
134 inst->vsi->pic.pic_h = ctx->picinfo.pic_h;
135 inst->vsi->pic.buf_w = ctx->picinfo.buf_w;
136 inst->vsi->pic.buf_h = ctx->picinfo.buf_h;
137 inst->vsi->pic.fb_sz[0] = ctx->picinfo.fb_sz[0];
138 inst->vsi->pic.fb_sz[1] = ctx->picinfo.fb_sz[1];
139 mtk_vdec_debug(inst->ctx, "pic(%d, %d), buf(%d, %d)",
140 ctx->picinfo.pic_w, ctx->picinfo.pic_h,
141 ctx->picinfo.buf_w, ctx->picinfo.buf_h);
142 mtk_vdec_debug(inst->ctx, "fb size: Y(%d), C(%d)",
143 ctx->picinfo.fb_sz[0], ctx->picinfo.fb_sz[1]);
144 }
145
vdec_vp8_slice_alloc_working_buf(struct vdec_vp8_slice_inst * inst)146 static int vdec_vp8_slice_alloc_working_buf(struct vdec_vp8_slice_inst *inst)
147 {
148 int err;
149 struct mtk_vcodec_mem *mem;
150
151 mem = &inst->seg_id_buf;
152 mem->size = VP8_SEG_ID_SZ;
153 err = mtk_vcodec_mem_alloc(inst->ctx, mem);
154 if (err) {
155 mtk_vdec_err(inst->ctx, "Cannot allocate working buffer");
156 return err;
157 }
158 inst->vsi->dec.seg_id_buf_dma = (u64)mem->dma_addr;
159
160 mem = &inst->wrap_y_buf;
161 mem->size = VP8_PP_WRAPY_SZ;
162 err = mtk_vcodec_mem_alloc(inst->ctx, mem);
163 if (err) {
164 mtk_vdec_err(inst->ctx, "cannot allocate WRAP Y buffer");
165 return err;
166 }
167 inst->vsi->dec.wrap_y_dma = (u64)mem->dma_addr;
168
169 mem = &inst->wrap_c_buf;
170 mem->size = VP8_PP_WRAPC_SZ;
171 err = mtk_vcodec_mem_alloc(inst->ctx, mem);
172 if (err) {
173 mtk_vdec_err(inst->ctx, "cannot allocate WRAP C buffer");
174 return err;
175 }
176 inst->vsi->dec.wrap_c_dma = (u64)mem->dma_addr;
177
178 mem = &inst->vld_wrapper_buf;
179 mem->size = VP8_VLD_PRED_SZ;
180 err = mtk_vcodec_mem_alloc(inst->ctx, mem);
181 if (err) {
182 mtk_vdec_err(inst->ctx, "cannot allocate vld wrapper buffer");
183 return err;
184 }
185 inst->vsi->dec.vld_wrapper_dma = (u64)mem->dma_addr;
186
187 return 0;
188 }
189
vdec_vp8_slice_free_working_buf(struct vdec_vp8_slice_inst * inst)190 static void vdec_vp8_slice_free_working_buf(struct vdec_vp8_slice_inst *inst)
191 {
192 struct mtk_vcodec_mem *mem;
193
194 mem = &inst->seg_id_buf;
195 if (mem->va)
196 mtk_vcodec_mem_free(inst->ctx, mem);
197 inst->vsi->dec.seg_id_buf_dma = 0;
198
199 mem = &inst->wrap_y_buf;
200 if (mem->va)
201 mtk_vcodec_mem_free(inst->ctx, mem);
202 inst->vsi->dec.wrap_y_dma = 0;
203
204 mem = &inst->wrap_c_buf;
205 if (mem->va)
206 mtk_vcodec_mem_free(inst->ctx, mem);
207 inst->vsi->dec.wrap_c_dma = 0;
208
209 mem = &inst->vld_wrapper_buf;
210 if (mem->va)
211 mtk_vcodec_mem_free(inst->ctx, mem);
212 inst->vsi->dec.vld_wrapper_dma = 0;
213 }
214
vdec_vp8_slice_get_ref_by_ts(const struct v4l2_ctrl_vp8_frame * frame_header,int index)215 static u64 vdec_vp8_slice_get_ref_by_ts(const struct v4l2_ctrl_vp8_frame *frame_header,
216 int index)
217 {
218 switch (index) {
219 case 0:
220 return frame_header->last_frame_ts;
221 case 1:
222 return frame_header->golden_frame_ts;
223 case 2:
224 return frame_header->alt_frame_ts;
225 default:
226 break;
227 }
228
229 return -1;
230 }
231
vdec_vp8_slice_get_decode_parameters(struct vdec_vp8_slice_inst * inst)232 static int vdec_vp8_slice_get_decode_parameters(struct vdec_vp8_slice_inst *inst)
233 {
234 const struct v4l2_ctrl_vp8_frame *frame_header;
235 struct mtk_vcodec_dec_ctx *ctx = inst->ctx;
236 struct vb2_queue *vq;
237 struct vb2_buffer *vb;
238 u64 referenct_ts;
239 int index;
240
241 frame_header = vdec_vp8_slice_get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_VP8_FRAME);
242 if (IS_ERR(frame_header))
243 return PTR_ERR(frame_header);
244
245 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
246 for (index = 0; index < 3; index++) {
247 referenct_ts = vdec_vp8_slice_get_ref_by_ts(frame_header, index);
248 vb = vb2_find_buffer(vq, referenct_ts);
249 if (!vb) {
250 if (!V4L2_VP8_FRAME_IS_KEY_FRAME(frame_header))
251 mtk_vdec_err(inst->ctx, "reference invalid: index(%d) ts(%lld)",
252 index, referenct_ts);
253 inst->vsi->vp8_dpb_info[index].reference_flag = 0;
254 continue;
255 }
256 inst->vsi->vp8_dpb_info[index].reference_flag = 1;
257
258 inst->vsi->vp8_dpb_info[index].y_dma_addr =
259 vb2_dma_contig_plane_dma_addr(vb, 0);
260 if (ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2)
261 inst->vsi->vp8_dpb_info[index].c_dma_addr =
262 vb2_dma_contig_plane_dma_addr(vb, 1);
263 else
264 inst->vsi->vp8_dpb_info[index].c_dma_addr =
265 inst->vsi->vp8_dpb_info[index].y_dma_addr +
266 ctx->picinfo.fb_sz[0];
267 }
268
269 inst->vsi->dec.frame_header_type = frame_header->flags >> 1;
270
271 return 0;
272 }
273
vdec_vp8_slice_init(struct mtk_vcodec_dec_ctx * ctx)274 static int vdec_vp8_slice_init(struct mtk_vcodec_dec_ctx *ctx)
275 {
276 struct vdec_vp8_slice_inst *inst;
277 int err;
278
279 inst = kzalloc(sizeof(*inst), GFP_KERNEL);
280 if (!inst)
281 return -ENOMEM;
282
283 inst->ctx = ctx;
284
285 inst->vpu.id = SCP_IPI_VDEC_LAT;
286 inst->vpu.core_id = SCP_IPI_VDEC_CORE;
287 inst->vpu.ctx = ctx;
288 inst->vpu.codec_type = ctx->current_codec;
289 inst->vpu.capture_type = ctx->capture_fourcc;
290
291 err = vpu_dec_init(&inst->vpu);
292 if (err) {
293 mtk_vdec_err(ctx, "vdec_vp8 init err=%d", err);
294 goto error_free_inst;
295 }
296
297 inst->vsi = inst->vpu.vsi;
298 err = vdec_vp8_slice_alloc_working_buf(inst);
299 if (err)
300 goto error_deinit;
301
302 mtk_vdec_debug(ctx, "vp8 struct size = %d vsi: %d\n",
303 (int)sizeof(struct v4l2_ctrl_vp8_frame),
304 (int)sizeof(struct vdec_vp8_slice_vsi));
305 mtk_vdec_debug(ctx, "vp8:%p, codec_type = 0x%x vsi: 0x%p",
306 inst, inst->vpu.codec_type, inst->vpu.vsi);
307
308 ctx->drv_handle = inst;
309 return 0;
310
311 error_deinit:
312 vpu_dec_deinit(&inst->vpu);
313 error_free_inst:
314 kfree(inst);
315 return err;
316 }
317
vdec_vp8_slice_decode(void * h_vdec,struct mtk_vcodec_mem * bs,struct vdec_fb * fb,bool * res_chg)318 static int vdec_vp8_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
319 struct vdec_fb *fb, bool *res_chg)
320 {
321 struct vdec_vp8_slice_inst *inst = h_vdec;
322 struct vdec_vpu_inst *vpu = &inst->vpu;
323 struct mtk_video_dec_buf *src_buf_info, *dst_buf_info;
324 unsigned int data;
325 u64 y_fb_dma, c_fb_dma;
326 int err, timeout;
327
328 /* Resolution changes are never initiated by us */
329 *res_chg = false;
330
331 /* bs NULL means flush decoder */
332 if (!bs)
333 return vpu_dec_reset(vpu);
334
335 src_buf_info = container_of(bs, struct mtk_video_dec_buf, bs_buffer);
336
337 fb = inst->ctx->dev->vdec_pdata->get_cap_buffer(inst->ctx);
338 dst_buf_info = container_of(fb, struct mtk_video_dec_buf, frame_buffer);
339
340 y_fb_dma = fb ? (u64)fb->base_y.dma_addr : 0;
341 if (inst->ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 1)
342 c_fb_dma = y_fb_dma +
343 inst->ctx->picinfo.buf_w * inst->ctx->picinfo.buf_h;
344 else
345 c_fb_dma = fb ? (u64)fb->base_c.dma_addr : 0;
346
347 inst->vsi->dec.bs_dma = (u64)bs->dma_addr;
348 inst->vsi->dec.bs_sz = bs->size;
349 inst->vsi->dec.cur_y_fb_dma = y_fb_dma;
350 inst->vsi->dec.cur_c_fb_dma = c_fb_dma;
351
352 mtk_vdec_debug(inst->ctx, "frame[%d] bs(%zu 0x%llx) y/c(0x%llx 0x%llx)",
353 inst->ctx->decoded_frame_cnt,
354 bs->size, (u64)bs->dma_addr,
355 y_fb_dma, c_fb_dma);
356
357 v4l2_m2m_buf_copy_metadata(&src_buf_info->m2m_buf.vb,
358 &dst_buf_info->m2m_buf.vb, true);
359
360 err = vdec_vp8_slice_get_decode_parameters(inst);
361 if (err)
362 goto error;
363
364 err = vpu_dec_start(vpu, &data, 1);
365 if (err) {
366 mtk_vdec_debug(inst->ctx, "vp8 dec start err!");
367 goto error;
368 }
369
370 if (inst->vsi->dec.resolution_changed) {
371 mtk_vdec_debug(inst->ctx, "- resolution_changed -");
372 *res_chg = true;
373 return 0;
374 }
375
376 /* wait decode done interrupt */
377 timeout = mtk_vcodec_wait_for_done_ctx(inst->ctx, MTK_INST_IRQ_RECEIVED,
378 50, MTK_VDEC_CORE);
379
380 err = vpu_dec_end(vpu);
381 if (err || timeout)
382 mtk_vdec_debug(inst->ctx, "vp8 dec error timeout:%d err: %d pic_%d",
383 timeout, err, inst->ctx->decoded_frame_cnt);
384
385 mtk_vdec_debug(inst->ctx, "pic[%d] crc: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x",
386 inst->ctx->decoded_frame_cnt,
387 inst->vsi->dec.crc[0], inst->vsi->dec.crc[1],
388 inst->vsi->dec.crc[2], inst->vsi->dec.crc[3],
389 inst->vsi->dec.crc[4], inst->vsi->dec.crc[5],
390 inst->vsi->dec.crc[6], inst->vsi->dec.crc[7]);
391
392 inst->ctx->decoded_frame_cnt++;
393 error:
394 return err;
395 }
396
vdec_vp8_slice_get_param(void * h_vdec,enum vdec_get_param_type type,void * out)397 static int vdec_vp8_slice_get_param(void *h_vdec, enum vdec_get_param_type type, void *out)
398 {
399 struct vdec_vp8_slice_inst *inst = h_vdec;
400
401 switch (type) {
402 case GET_PARAM_PIC_INFO:
403 vdec_vp8_slice_get_pic_info(inst);
404 break;
405 case GET_PARAM_CROP_INFO:
406 mtk_vdec_debug(inst->ctx, "No need to get vp8 crop information.");
407 break;
408 case GET_PARAM_DPB_SIZE:
409 *((unsigned int *)out) = VP8_DPB_SIZE;
410 break;
411 default:
412 mtk_vdec_err(inst->ctx, "invalid get parameter type=%d", type);
413 return -EINVAL;
414 }
415
416 return 0;
417 }
418
vdec_vp8_slice_deinit(void * h_vdec)419 static void vdec_vp8_slice_deinit(void *h_vdec)
420 {
421 struct vdec_vp8_slice_inst *inst = h_vdec;
422
423 vpu_dec_deinit(&inst->vpu);
424 vdec_vp8_slice_free_working_buf(inst);
425 kfree(inst);
426 }
427
428 const struct vdec_common_if vdec_vp8_slice_if = {
429 .init = vdec_vp8_slice_init,
430 .decode = vdec_vp8_slice_decode,
431 .get_param = vdec_vp8_slice_get_param,
432 .deinit = vdec_vp8_slice_deinit,
433 };
434
