1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Coda multi-standard codec IP - BIT processor functions
4 *
5 * Copyright (C) 2012 Vista Silicon S.L.
6 * Javier Martin, <javier.martin@vista-silicon.com>
7 * Xavier Duret
8 * Copyright (C) 2012-2014 Philipp Zabel, Pengutronix
9 */
10
11 #include <linux/clk.h>
12 #include <linux/irqreturn.h>
13 #include <linux/kernel.h>
14 #include <linux/log2.h>
15 #include <linux/platform_device.h>
16 #include <linux/ratelimit.h>
17 #include <linux/reset.h>
18 #include <linux/slab.h>
19 #include <linux/videodev2.h>
20
21 #include <media/v4l2-common.h>
22 #include <media/v4l2-ctrls.h>
23 #include <media/v4l2-fh.h>
24 #include <media/v4l2-mem2mem.h>
25 #include <media/videobuf2-v4l2.h>
26 #include <media/videobuf2-dma-contig.h>
27 #include <media/videobuf2-vmalloc.h>
28
29 #include "coda.h"
30 #include "imx-vdoa.h"
31 #define CREATE_TRACE_POINTS
32 #include "trace.h"
33
34 #define CODA_PARA_BUF_SIZE (10 * 1024)
35 #define CODA7_PS_BUF_SIZE 0x28000
36 #define CODA9_PS_SAVE_SIZE (512 * 1024)
37
38 #define CODA_DEFAULT_GAMMA 4096
39 #define CODA9_DEFAULT_GAMMA 24576 /* 0.75 * 32768 */
40
41 static void coda_free_bitstream_buffer(struct coda_ctx *ctx);
42
coda_is_initialized(struct coda_dev * dev)43 static inline int coda_is_initialized(struct coda_dev *dev)
44 {
45 return coda_read(dev, CODA_REG_BIT_CUR_PC) != 0;
46 }
47
coda_isbusy(struct coda_dev * dev)48 static inline unsigned long coda_isbusy(struct coda_dev *dev)
49 {
50 return coda_read(dev, CODA_REG_BIT_BUSY);
51 }
52
coda_wait_timeout(struct coda_dev * dev)53 static int coda_wait_timeout(struct coda_dev *dev)
54 {
55 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
56
57 while (coda_isbusy(dev)) {
58 if (time_after(jiffies, timeout))
59 return -ETIMEDOUT;
60 }
61 return 0;
62 }
63
coda_command_async(struct coda_ctx * ctx,int cmd)64 static void coda_command_async(struct coda_ctx *ctx, int cmd)
65 {
66 struct coda_dev *dev = ctx->dev;
67
68 if (dev->devtype->product == CODA_HX4 ||
69 dev->devtype->product == CODA_7541 ||
70 dev->devtype->product == CODA_960) {
71 /* Restore context related registers to CODA */
72 coda_write(dev, ctx->bit_stream_param,
73 CODA_REG_BIT_BIT_STREAM_PARAM);
74 coda_write(dev, ctx->frm_dis_flg,
75 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
76 coda_write(dev, ctx->frame_mem_ctrl,
77 CODA_REG_BIT_FRAME_MEM_CTRL);
78 coda_write(dev, ctx->workbuf.paddr, CODA_REG_BIT_WORK_BUF_ADDR);
79 }
80
81 if (dev->devtype->product == CODA_960) {
82 coda_write(dev, 1, CODA9_GDI_WPROT_ERR_CLR);
83 coda_write(dev, 0, CODA9_GDI_WPROT_RGN_EN);
84 }
85
86 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
87
88 coda_write(dev, ctx->idx, CODA_REG_BIT_RUN_INDEX);
89 coda_write(dev, ctx->params.codec_mode, CODA_REG_BIT_RUN_COD_STD);
90 coda_write(dev, ctx->params.codec_mode_aux, CODA7_REG_BIT_RUN_AUX_STD);
91
92 trace_coda_bit_run(ctx, cmd);
93
94 coda_write(dev, cmd, CODA_REG_BIT_RUN_COMMAND);
95 }
96
coda_command_sync(struct coda_ctx * ctx,int cmd)97 static int coda_command_sync(struct coda_ctx *ctx, int cmd)
98 {
99 struct coda_dev *dev = ctx->dev;
100 int ret;
101
102 lockdep_assert_held(&dev->coda_mutex);
103
104 coda_command_async(ctx, cmd);
105 ret = coda_wait_timeout(dev);
106 trace_coda_bit_done(ctx);
107
108 return ret;
109 }
110
coda_hw_reset(struct coda_ctx * ctx)111 int coda_hw_reset(struct coda_ctx *ctx)
112 {
113 struct coda_dev *dev = ctx->dev;
114 unsigned long timeout;
115 unsigned int idx;
116 int ret;
117
118 lockdep_assert_held(&dev->coda_mutex);
119
120 if (!dev->rstc)
121 return -ENOENT;
122
123 idx = coda_read(dev, CODA_REG_BIT_RUN_INDEX);
124
125 if (dev->devtype->product == CODA_960) {
126 timeout = jiffies + msecs_to_jiffies(100);
127 coda_write(dev, 0x11, CODA9_GDI_BUS_CTRL);
128 while (coda_read(dev, CODA9_GDI_BUS_STATUS) != 0x77) {
129 if (time_after(jiffies, timeout))
130 return -ETIME;
131 cpu_relax();
132 }
133 }
134
135 ret = reset_control_reset(dev->rstc);
136 if (ret < 0)
137 return ret;
138
139 if (dev->devtype->product == CODA_960)
140 coda_write(dev, 0x00, CODA9_GDI_BUS_CTRL);
141 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
142 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
143 ret = coda_wait_timeout(dev);
144 coda_write(dev, idx, CODA_REG_BIT_RUN_INDEX);
145
146 return ret;
147 }
148
coda_kfifo_sync_from_device(struct coda_ctx * ctx)149 static void coda_kfifo_sync_from_device(struct coda_ctx *ctx)
150 {
151 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
152 struct coda_dev *dev = ctx->dev;
153 u32 rd_ptr;
154
155 rd_ptr = coda_read(dev, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
156 kfifo->out = (kfifo->in & ~kfifo->mask) |
157 (rd_ptr - ctx->bitstream.paddr);
158 if (kfifo->out > kfifo->in)
159 kfifo->out -= kfifo->mask + 1;
160 }
161
coda_kfifo_sync_to_device_full(struct coda_ctx * ctx)162 static void coda_kfifo_sync_to_device_full(struct coda_ctx *ctx)
163 {
164 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
165 struct coda_dev *dev = ctx->dev;
166 u32 rd_ptr, wr_ptr;
167
168 rd_ptr = ctx->bitstream.paddr + (kfifo->out & kfifo->mask);
169 coda_write(dev, rd_ptr, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
170 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
171 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
172 }
173
coda_kfifo_sync_to_device_write(struct coda_ctx * ctx)174 static void coda_kfifo_sync_to_device_write(struct coda_ctx *ctx)
175 {
176 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
177 struct coda_dev *dev = ctx->dev;
178 u32 wr_ptr;
179
180 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
181 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
182 }
183
coda_h264_bitstream_pad(struct coda_ctx * ctx,u32 size)184 static int coda_h264_bitstream_pad(struct coda_ctx *ctx, u32 size)
185 {
186 unsigned char *buf;
187 u32 n;
188
189 if (size < 6)
190 size = 6;
191
192 buf = kmalloc(size, GFP_KERNEL);
193 if (!buf)
194 return -ENOMEM;
195
196 coda_h264_filler_nal(size, buf);
197 n = kfifo_in(&ctx->bitstream_fifo, buf, size);
198 kfree(buf);
199
200 return (n < size) ? -ENOSPC : 0;
201 }
202
coda_bitstream_flush(struct coda_ctx * ctx)203 int coda_bitstream_flush(struct coda_ctx *ctx)
204 {
205 int ret;
206
207 if (ctx->inst_type != CODA_INST_DECODER || !ctx->use_bit)
208 return 0;
209
210 ret = coda_command_sync(ctx, CODA_COMMAND_DEC_BUF_FLUSH);
211 if (ret < 0) {
212 v4l2_err(&ctx->dev->v4l2_dev, "failed to flush bitstream\n");
213 return ret;
214 }
215
216 kfifo_init(&ctx->bitstream_fifo, ctx->bitstream.vaddr,
217 ctx->bitstream.size);
218 coda_kfifo_sync_to_device_full(ctx);
219
220 return 0;
221 }
222
coda_bitstream_queue(struct coda_ctx * ctx,const u8 * buf,u32 size)223 static int coda_bitstream_queue(struct coda_ctx *ctx, const u8 *buf, u32 size)
224 {
225 u32 n = kfifo_in(&ctx->bitstream_fifo, buf, size);
226
227 return (n < size) ? -ENOSPC : 0;
228 }
229
coda_buffer_parse_headers(struct coda_ctx * ctx,struct vb2_v4l2_buffer * src_buf,u32 payload)230 static u32 coda_buffer_parse_headers(struct coda_ctx *ctx,
231 struct vb2_v4l2_buffer *src_buf,
232 u32 payload)
233 {
234 u8 *vaddr = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
235 u32 size = 0;
236
237 switch (ctx->codec->src_fourcc) {
238 case V4L2_PIX_FMT_MPEG2:
239 size = coda_mpeg2_parse_headers(ctx, vaddr, payload);
240 break;
241 case V4L2_PIX_FMT_MPEG4:
242 size = coda_mpeg4_parse_headers(ctx, vaddr, payload);
243 break;
244 default:
245 break;
246 }
247
248 return size;
249 }
250
coda_bitstream_try_queue(struct coda_ctx * ctx,struct vb2_v4l2_buffer * src_buf)251 static bool coda_bitstream_try_queue(struct coda_ctx *ctx,
252 struct vb2_v4l2_buffer *src_buf)
253 {
254 unsigned long payload = vb2_get_plane_payload(&src_buf->vb2_buf, 0);
255 u8 *vaddr = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
256 int ret;
257 int i;
258
259 if (coda_get_bitstream_payload(ctx) + payload + 512 >=
260 ctx->bitstream.size)
261 return false;
262
263 if (!vaddr) {
264 v4l2_err(&ctx->dev->v4l2_dev, "trying to queue empty buffer\n");
265 return true;
266 }
267
268 if (ctx->qsequence == 0 && payload < 512) {
269 /*
270 * Add padding after the first buffer, if it is too small to be
271 * fetched by the CODA, by repeating the headers. Without
272 * repeated headers, or the first frame already queued, decoder
273 * sequence initialization fails with error code 0x2000 on i.MX6
274 * or error code 0x1 on i.MX51.
275 */
276 u32 header_size = coda_buffer_parse_headers(ctx, src_buf,
277 payload);
278
279 if (header_size) {
280 coda_dbg(1, ctx, "pad with %u-byte header\n",
281 header_size);
282 for (i = payload; i < 512; i += header_size) {
283 ret = coda_bitstream_queue(ctx, vaddr,
284 header_size);
285 if (ret < 0) {
286 v4l2_err(&ctx->dev->v4l2_dev,
287 "bitstream buffer overflow\n");
288 return false;
289 }
290 if (ctx->dev->devtype->product == CODA_960)
291 break;
292 }
293 } else {
294 coda_dbg(1, ctx,
295 "could not parse header, sequence initialization might fail\n");
296 }
297
298 /* Add padding before the first buffer, if it is too small */
299 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264)
300 coda_h264_bitstream_pad(ctx, 512 - payload);
301 }
302
303 ret = coda_bitstream_queue(ctx, vaddr, payload);
304 if (ret < 0) {
305 v4l2_err(&ctx->dev->v4l2_dev, "bitstream buffer overflow\n");
306 return false;
307 }
308
309 src_buf->sequence = ctx->qsequence++;
310
311 /* Sync read pointer to device */
312 if (ctx == v4l2_m2m_get_curr_priv(ctx->dev->m2m_dev))
313 coda_kfifo_sync_to_device_write(ctx);
314
315 /* Set the stream-end flag after the last buffer is queued */
316 if (src_buf->flags & V4L2_BUF_FLAG_LAST)
317 coda_bit_stream_end_flag(ctx);
318 ctx->hold = false;
319
320 return true;
321 }
322
coda_fill_bitstream(struct coda_ctx * ctx,struct list_head * buffer_list)323 void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list)
324 {
325 struct vb2_v4l2_buffer *src_buf;
326 struct coda_buffer_meta *meta;
327 u32 start;
328
329 lockdep_assert_held(&ctx->bitstream_mutex);
330
331 if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG)
332 return;
333
334 while (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) > 0) {
335 /*
336 * Only queue two JPEGs into the bitstream buffer to keep
337 * latency low. We need at least one complete buffer and the
338 * header of another buffer (for prescan) in the bitstream.
339 */
340 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
341 ctx->num_metas > 1)
342 break;
343
344 if (ctx->num_internal_frames &&
345 ctx->num_metas >= ctx->num_internal_frames) {
346 meta = list_first_entry(&ctx->buffer_meta_list,
347 struct coda_buffer_meta, list);
348
349 /*
350 * If we managed to fill in at least a full reorder
351 * window of buffers (num_internal_frames is a
352 * conservative estimate for this) and the bitstream
353 * prefetcher has at least 2 256 bytes periods beyond
354 * the first buffer to fetch, we can safely stop queuing
355 * in order to limit the decoder drain latency.
356 */
357 if (coda_bitstream_can_fetch_past(ctx, meta->end))
358 break;
359 }
360
361 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
362
363 /* Drop frames that do not start/end with a SOI/EOI markers */
364 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
365 !coda_jpeg_check_buffer(ctx, &src_buf->vb2_buf)) {
366 v4l2_err(&ctx->dev->v4l2_dev,
367 "dropping invalid JPEG frame %d\n",
368 ctx->qsequence);
369 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
370 if (buffer_list) {
371 struct v4l2_m2m_buffer *m2m_buf;
372
373 m2m_buf = container_of(src_buf,
374 struct v4l2_m2m_buffer,
375 vb);
376 list_add_tail(&m2m_buf->list, buffer_list);
377 } else {
378 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
379 }
380 continue;
381 }
382
383 /* Dump empty buffers */
384 if (!vb2_get_plane_payload(&src_buf->vb2_buf, 0)) {
385 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
386 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
387 continue;
388 }
389
390 /* Buffer start position */
391 start = ctx->bitstream_fifo.kfifo.in;
392
393 if (coda_bitstream_try_queue(ctx, src_buf)) {
394 /*
395 * Source buffer is queued in the bitstream ringbuffer;
396 * queue the timestamp and mark source buffer as done
397 */
398 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
399
400 meta = kmalloc(sizeof(*meta), GFP_KERNEL);
401 if (meta) {
402 meta->sequence = src_buf->sequence;
403 meta->timecode = src_buf->timecode;
404 meta->timestamp = src_buf->vb2_buf.timestamp;
405 meta->start = start;
406 meta->end = ctx->bitstream_fifo.kfifo.in;
407 meta->last = src_buf->flags & V4L2_BUF_FLAG_LAST;
408 if (meta->last)
409 coda_dbg(1, ctx, "marking last meta");
410 spin_lock(&ctx->buffer_meta_lock);
411 list_add_tail(&meta->list,
412 &ctx->buffer_meta_list);
413 ctx->num_metas++;
414 spin_unlock(&ctx->buffer_meta_lock);
415
416 trace_coda_bit_queue(ctx, src_buf, meta);
417 }
418
419 if (buffer_list) {
420 struct v4l2_m2m_buffer *m2m_buf;
421
422 m2m_buf = container_of(src_buf,
423 struct v4l2_m2m_buffer,
424 vb);
425 list_add_tail(&m2m_buf->list, buffer_list);
426 } else {
427 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
428 }
429 } else {
430 break;
431 }
432 }
433 }
434
coda_bit_stream_end_flag(struct coda_ctx * ctx)435 void coda_bit_stream_end_flag(struct coda_ctx *ctx)
436 {
437 struct coda_dev *dev = ctx->dev;
438
439 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
440
441 /* If this context is currently running, update the hardware flag */
442 if ((dev->devtype->product == CODA_960) &&
443 coda_isbusy(dev) &&
444 (ctx->idx == coda_read(dev, CODA_REG_BIT_RUN_INDEX))) {
445 coda_write(dev, ctx->bit_stream_param,
446 CODA_REG_BIT_BIT_STREAM_PARAM);
447 }
448 }
449
coda_parabuf_write(struct coda_ctx * ctx,int index,u32 value)450 static void coda_parabuf_write(struct coda_ctx *ctx, int index, u32 value)
451 {
452 struct coda_dev *dev = ctx->dev;
453 u32 *p = ctx->parabuf.vaddr;
454
455 if (dev->devtype->product == CODA_DX6)
456 p[index] = value;
457 else
458 p[index ^ 1] = value;
459 }
460
coda_alloc_context_buf(struct coda_ctx * ctx,struct coda_aux_buf * buf,size_t size,const char * name)461 static inline int coda_alloc_context_buf(struct coda_ctx *ctx,
462 struct coda_aux_buf *buf, size_t size,
463 const char *name)
464 {
465 return coda_alloc_aux_buf(ctx->dev, buf, size, name, ctx->debugfs_entry);
466 }
467
468
coda_free_framebuffers(struct coda_ctx * ctx)469 static void coda_free_framebuffers(struct coda_ctx *ctx)
470 {
471 int i;
472
473 for (i = 0; i < CODA_MAX_FRAMEBUFFERS; i++)
474 coda_free_aux_buf(ctx->dev, &ctx->internal_frames[i].buf);
475 }
476
coda_alloc_framebuffers(struct coda_ctx * ctx,struct coda_q_data * q_data,u32 fourcc)477 static int coda_alloc_framebuffers(struct coda_ctx *ctx,
478 struct coda_q_data *q_data, u32 fourcc)
479 {
480 struct coda_dev *dev = ctx->dev;
481 unsigned int ysize, ycbcr_size;
482 int ret;
483 int i;
484
485 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 ||
486 ctx->codec->dst_fourcc == V4L2_PIX_FMT_H264 ||
487 ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4 ||
488 ctx->codec->dst_fourcc == V4L2_PIX_FMT_MPEG4)
489 ysize = round_up(q_data->rect.width, 16) *
490 round_up(q_data->rect.height, 16);
491 else
492 ysize = round_up(q_data->rect.width, 8) * q_data->rect.height;
493
494 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
495 ycbcr_size = round_up(ysize, 4096) + ysize / 2;
496 else
497 ycbcr_size = ysize + ysize / 2;
498
499 /* Allocate frame buffers */
500 for (i = 0; i < ctx->num_internal_frames; i++) {
501 size_t size = ycbcr_size;
502 char *name;
503
504 /* Add space for mvcol buffers */
505 if (dev->devtype->product != CODA_DX6 &&
506 (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 ||
507 (ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4 && i == 0)))
508 size += ysize / 4;
509 name = kasprintf(GFP_KERNEL, "fb%d", i);
510 if (!name) {
511 coda_free_framebuffers(ctx);
512 return -ENOMEM;
513 }
514 ret = coda_alloc_context_buf(ctx, &ctx->internal_frames[i].buf,
515 size, name);
516 kfree(name);
517 if (ret < 0) {
518 coda_free_framebuffers(ctx);
519 return ret;
520 }
521 }
522
523 /* Register frame buffers in the parameter buffer */
524 for (i = 0; i < ctx->num_internal_frames; i++) {
525 u32 y, cb, cr, mvcol;
526
527 /* Start addresses of Y, Cb, Cr planes */
528 y = ctx->internal_frames[i].buf.paddr;
529 cb = y + ysize;
530 cr = y + ysize + ysize/4;
531 mvcol = y + ysize + ysize/4 + ysize/4;
532 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP) {
533 cb = round_up(cb, 4096);
534 mvcol = cb + ysize/2;
535 cr = 0;
536 /* Packed 20-bit MSB of base addresses */
537 /* YYYYYCCC, CCyyyyyc, cccc.... */
538 y = (y & 0xfffff000) | cb >> 20;
539 cb = (cb & 0x000ff000) << 12;
540 }
541 coda_parabuf_write(ctx, i * 3 + 0, y);
542 coda_parabuf_write(ctx, i * 3 + 1, cb);
543 coda_parabuf_write(ctx, i * 3 + 2, cr);
544
545 if (dev->devtype->product == CODA_DX6)
546 continue;
547
548 /* mvcol buffer for h.264 and mpeg4 */
549 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264)
550 coda_parabuf_write(ctx, 96 + i, mvcol);
551 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4 && i == 0)
552 coda_parabuf_write(ctx, 97, mvcol);
553 }
554
555 return 0;
556 }
557
coda_free_context_buffers(struct coda_ctx * ctx)558 static void coda_free_context_buffers(struct coda_ctx *ctx)
559 {
560 struct coda_dev *dev = ctx->dev;
561
562 coda_free_aux_buf(dev, &ctx->slicebuf);
563 coda_free_aux_buf(dev, &ctx->psbuf);
564 if (dev->devtype->product != CODA_DX6)
565 coda_free_aux_buf(dev, &ctx->workbuf);
566 coda_free_aux_buf(dev, &ctx->parabuf);
567 }
568
coda_alloc_context_buffers(struct coda_ctx * ctx,struct coda_q_data * q_data)569 static int coda_alloc_context_buffers(struct coda_ctx *ctx,
570 struct coda_q_data *q_data)
571 {
572 struct coda_dev *dev = ctx->dev;
573 size_t size;
574 int ret;
575
576 if (!ctx->parabuf.vaddr) {
577 ret = coda_alloc_context_buf(ctx, &ctx->parabuf,
578 CODA_PARA_BUF_SIZE, "parabuf");
579 if (ret < 0)
580 return ret;
581 }
582
583 if (dev->devtype->product == CODA_DX6)
584 return 0;
585
586 if (!ctx->slicebuf.vaddr && q_data->fourcc == V4L2_PIX_FMT_H264) {
587 /* worst case slice size */
588 size = (unsigned long)(DIV_ROUND_UP(q_data->rect.width, 16) *
589 DIV_ROUND_UP(q_data->rect.height, 16)) * 3200 / 8 + 512;
590 ret = coda_alloc_context_buf(ctx, &ctx->slicebuf, size,
591 "slicebuf");
592 if (ret < 0)
593 goto err;
594 }
595
596 if (!ctx->psbuf.vaddr && (dev->devtype->product == CODA_HX4 ||
597 dev->devtype->product == CODA_7541)) {
598 ret = coda_alloc_context_buf(ctx, &ctx->psbuf,
599 CODA7_PS_BUF_SIZE, "psbuf");
600 if (ret < 0)
601 goto err;
602 }
603
604 if (!ctx->workbuf.vaddr) {
605 size = dev->devtype->workbuf_size;
606 if (dev->devtype->product == CODA_960 &&
607 q_data->fourcc == V4L2_PIX_FMT_H264)
608 size += CODA9_PS_SAVE_SIZE;
609 ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size,
610 "workbuf");
611 if (ret < 0)
612 goto err;
613 }
614
615 return 0;
616
617 err:
618 coda_free_context_buffers(ctx);
619 return ret;
620 }
621
coda_encode_header(struct coda_ctx * ctx,struct vb2_v4l2_buffer * buf,int header_code,u8 * header,int * size)622 static int coda_encode_header(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
623 int header_code, u8 *header, int *size)
624 {
625 struct vb2_buffer *vb = &buf->vb2_buf;
626 struct coda_dev *dev = ctx->dev;
627 struct coda_q_data *q_data_src;
628 struct v4l2_rect *r;
629 size_t bufsize;
630 int ret;
631 int i;
632
633 if (dev->devtype->product == CODA_960)
634 memset(vb2_plane_vaddr(vb, 0), 0, 64);
635
636 coda_write(dev, vb2_dma_contig_plane_dma_addr(vb, 0),
637 CODA_CMD_ENC_HEADER_BB_START);
638 bufsize = vb2_plane_size(vb, 0);
639 if (dev->devtype->product == CODA_960)
640 bufsize /= 1024;
641 coda_write(dev, bufsize, CODA_CMD_ENC_HEADER_BB_SIZE);
642 if (dev->devtype->product == CODA_960 &&
643 ctx->codec->dst_fourcc == V4L2_PIX_FMT_H264 &&
644 header_code == CODA_HEADER_H264_SPS) {
645 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
646 r = &q_data_src->rect;
647
648 if (r->width % 16 || r->height % 16) {
649 u32 crop_right = round_up(r->width, 16) - r->width;
650 u32 crop_bottom = round_up(r->height, 16) - r->height;
651
652 coda_write(dev, crop_right,
653 CODA9_CMD_ENC_HEADER_FRAME_CROP_H);
654 coda_write(dev, crop_bottom,
655 CODA9_CMD_ENC_HEADER_FRAME_CROP_V);
656 header_code |= CODA9_HEADER_FRAME_CROP;
657 }
658 }
659 coda_write(dev, header_code, CODA_CMD_ENC_HEADER_CODE);
660 ret = coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER);
661 if (ret < 0) {
662 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
663 return ret;
664 }
665
666 if (dev->devtype->product == CODA_960) {
667 for (i = 63; i > 0; i--)
668 if (((char *)vb2_plane_vaddr(vb, 0))[i] != 0)
669 break;
670 *size = i + 1;
671 } else {
672 *size = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx)) -
673 coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
674 }
675 memcpy(header, vb2_plane_vaddr(vb, 0), *size);
676
677 return 0;
678 }
679
coda_slice_mode(struct coda_ctx * ctx)680 static u32 coda_slice_mode(struct coda_ctx *ctx)
681 {
682 int size, unit;
683
684 switch (ctx->params.slice_mode) {
685 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE:
686 default:
687 return 0;
688 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_MB:
689 size = ctx->params.slice_max_mb;
690 unit = 1;
691 break;
692 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES:
693 size = ctx->params.slice_max_bits;
694 unit = 0;
695 break;
696 }
697
698 return ((size & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET) |
699 ((unit & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET) |
700 ((1 & CODA_SLICING_MODE_MASK) << CODA_SLICING_MODE_OFFSET);
701 }
702
coda_enc_param_change(struct coda_ctx * ctx)703 static int coda_enc_param_change(struct coda_ctx *ctx)
704 {
705 struct coda_dev *dev = ctx->dev;
706 u32 change_enable = 0;
707 u32 success;
708 int ret;
709
710 if (ctx->params.gop_size_changed) {
711 change_enable |= CODA_PARAM_CHANGE_RC_GOP;
712 coda_write(dev, ctx->params.gop_size,
713 CODA_CMD_ENC_PARAM_RC_GOP);
714 ctx->gopcounter = ctx->params.gop_size - 1;
715 ctx->params.gop_size_changed = false;
716 }
717 if (ctx->params.h264_intra_qp_changed) {
718 coda_dbg(1, ctx, "parameter change: intra Qp %u\n",
719 ctx->params.h264_intra_qp);
720
721 if (ctx->params.bitrate) {
722 change_enable |= CODA_PARAM_CHANGE_RC_INTRA_QP;
723 coda_write(dev, ctx->params.h264_intra_qp,
724 CODA_CMD_ENC_PARAM_RC_INTRA_QP);
725 }
726 ctx->params.h264_intra_qp_changed = false;
727 }
728 if (ctx->params.bitrate_changed) {
729 coda_dbg(1, ctx, "parameter change: bitrate %u kbit/s\n",
730 ctx->params.bitrate);
731 change_enable |= CODA_PARAM_CHANGE_RC_BITRATE;
732 coda_write(dev, ctx->params.bitrate,
733 CODA_CMD_ENC_PARAM_RC_BITRATE);
734 ctx->params.bitrate_changed = false;
735 }
736 if (ctx->params.framerate_changed) {
737 coda_dbg(1, ctx, "parameter change: frame rate %u/%u Hz\n",
738 ctx->params.framerate & 0xffff,
739 (ctx->params.framerate >> 16) + 1);
740 change_enable |= CODA_PARAM_CHANGE_RC_FRAME_RATE;
741 coda_write(dev, ctx->params.framerate,
742 CODA_CMD_ENC_PARAM_RC_FRAME_RATE);
743 ctx->params.framerate_changed = false;
744 }
745 if (ctx->params.intra_refresh_changed) {
746 coda_dbg(1, ctx, "parameter change: intra refresh MBs %u\n",
747 ctx->params.intra_refresh);
748 change_enable |= CODA_PARAM_CHANGE_INTRA_MB_NUM;
749 coda_write(dev, ctx->params.intra_refresh,
750 CODA_CMD_ENC_PARAM_INTRA_MB_NUM);
751 ctx->params.intra_refresh_changed = false;
752 }
753 if (ctx->params.slice_mode_changed) {
754 change_enable |= CODA_PARAM_CHANGE_SLICE_MODE;
755 coda_write(dev, coda_slice_mode(ctx),
756 CODA_CMD_ENC_PARAM_SLICE_MODE);
757 ctx->params.slice_mode_changed = false;
758 }
759
760 if (!change_enable)
761 return 0;
762
763 coda_write(dev, change_enable, CODA_CMD_ENC_PARAM_CHANGE_ENABLE);
764
765 ret = coda_command_sync(ctx, CODA_COMMAND_RC_CHANGE_PARAMETER);
766 if (ret < 0)
767 return ret;
768
769 success = coda_read(dev, CODA_RET_ENC_PARAM_CHANGE_SUCCESS);
770 if (success != 1)
771 coda_dbg(1, ctx, "parameter change failed: %u\n", success);
772
773 return 0;
774 }
775
coda_iram_alloc(struct coda_iram_info * iram,size_t size)776 static phys_addr_t coda_iram_alloc(struct coda_iram_info *iram, size_t size)
777 {
778 phys_addr_t ret;
779
780 size = round_up(size, 1024);
781 if (size > iram->remaining)
782 return 0;
783 iram->remaining -= size;
784
785 ret = iram->next_paddr;
786 iram->next_paddr += size;
787
788 return ret;
789 }
790
coda_setup_iram(struct coda_ctx * ctx)791 static void coda_setup_iram(struct coda_ctx *ctx)
792 {
793 struct coda_iram_info *iram_info = &ctx->iram_info;
794 struct coda_dev *dev = ctx->dev;
795 int w64, w128;
796 int mb_width;
797 int dbk_bits;
798 int bit_bits;
799 int ip_bits;
800 int me_bits;
801
802 memset(iram_info, 0, sizeof(*iram_info));
803 iram_info->next_paddr = dev->iram.paddr;
804 iram_info->remaining = dev->iram.size;
805
806 if (!dev->iram.vaddr)
807 return;
808
809 switch (dev->devtype->product) {
810 case CODA_HX4:
811 dbk_bits = CODA7_USE_HOST_DBK_ENABLE;
812 bit_bits = CODA7_USE_HOST_BIT_ENABLE;
813 ip_bits = CODA7_USE_HOST_IP_ENABLE;
814 me_bits = CODA7_USE_HOST_ME_ENABLE;
815 break;
816 case CODA_7541:
817 dbk_bits = CODA7_USE_HOST_DBK_ENABLE | CODA7_USE_DBK_ENABLE;
818 bit_bits = CODA7_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
819 ip_bits = CODA7_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
820 me_bits = CODA7_USE_HOST_ME_ENABLE | CODA7_USE_ME_ENABLE;
821 break;
822 case CODA_960:
823 dbk_bits = CODA9_USE_HOST_DBK_ENABLE | CODA9_USE_DBK_ENABLE;
824 bit_bits = CODA9_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
825 ip_bits = CODA9_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
826 me_bits = 0;
827 break;
828 default: /* CODA_DX6 */
829 return;
830 }
831
832 if (ctx->inst_type == CODA_INST_ENCODER) {
833 struct coda_q_data *q_data_src;
834
835 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
836 mb_width = DIV_ROUND_UP(q_data_src->rect.width, 16);
837 w128 = mb_width * 128;
838 w64 = mb_width * 64;
839
840 /* Prioritize in case IRAM is too small for everything */
841 if (dev->devtype->product == CODA_HX4 ||
842 dev->devtype->product == CODA_7541) {
843 iram_info->search_ram_size = round_up(mb_width * 16 *
844 36 + 2048, 1024);
845 iram_info->search_ram_paddr = coda_iram_alloc(iram_info,
846 iram_info->search_ram_size);
847 if (!iram_info->search_ram_paddr) {
848 pr_err("IRAM is smaller than the search ram size\n");
849 goto out;
850 }
851 iram_info->axi_sram_use |= me_bits;
852 }
853
854 /* Only H.264BP and H.263P3 are considered */
855 iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w64);
856 iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w64);
857 if (!iram_info->buf_dbk_y_use || !iram_info->buf_dbk_c_use)
858 goto out;
859 iram_info->axi_sram_use |= dbk_bits;
860
861 iram_info->buf_bit_use = coda_iram_alloc(iram_info, w128);
862 if (!iram_info->buf_bit_use)
863 goto out;
864 iram_info->axi_sram_use |= bit_bits;
865
866 iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, w128);
867 if (!iram_info->buf_ip_ac_dc_use)
868 goto out;
869 iram_info->axi_sram_use |= ip_bits;
870
871 /* OVL and BTP disabled for encoder */
872 } else if (ctx->inst_type == CODA_INST_DECODER) {
873 struct coda_q_data *q_data_dst;
874
875 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
876 mb_width = DIV_ROUND_UP(q_data_dst->width, 16);
877 w128 = mb_width * 128;
878
879 iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w128);
880 iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w128);
881 if (!iram_info->buf_dbk_y_use || !iram_info->buf_dbk_c_use)
882 goto out;
883 iram_info->axi_sram_use |= dbk_bits;
884
885 iram_info->buf_bit_use = coda_iram_alloc(iram_info, w128);
886 if (!iram_info->buf_bit_use)
887 goto out;
888 iram_info->axi_sram_use |= bit_bits;
889
890 iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, w128);
891 if (!iram_info->buf_ip_ac_dc_use)
892 goto out;
893 iram_info->axi_sram_use |= ip_bits;
894
895 /* OVL and BTP unused as there is no VC1 support yet */
896 }
897
898 out:
899 if (!(iram_info->axi_sram_use & CODA7_USE_HOST_IP_ENABLE))
900 coda_dbg(1, ctx, "IRAM smaller than needed\n");
901
902 if (dev->devtype->product == CODA_HX4 ||
903 dev->devtype->product == CODA_7541) {
904 /* TODO - Enabling these causes picture errors on CODA7541 */
905 if (ctx->inst_type == CODA_INST_DECODER) {
906 /* fw 1.4.50 */
907 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
908 CODA7_USE_IP_ENABLE);
909 } else {
910 /* fw 13.4.29 */
911 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
912 CODA7_USE_HOST_DBK_ENABLE |
913 CODA7_USE_IP_ENABLE |
914 CODA7_USE_DBK_ENABLE);
915 }
916 }
917 }
918
919 static u32 coda_supported_firmwares[] = {
920 CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5),
921 CODA_FIRMWARE_VERNUM(CODA_HX4, 1, 4, 50),
922 CODA_FIRMWARE_VERNUM(CODA_7541, 1, 4, 50),
923 CODA_FIRMWARE_VERNUM(CODA_960, 2, 1, 5),
924 CODA_FIRMWARE_VERNUM(CODA_960, 2, 1, 9),
925 CODA_FIRMWARE_VERNUM(CODA_960, 2, 3, 10),
926 CODA_FIRMWARE_VERNUM(CODA_960, 3, 1, 1),
927 };
928
coda_firmware_supported(u32 vernum)929 static bool coda_firmware_supported(u32 vernum)
930 {
931 int i;
932
933 for (i = 0; i < ARRAY_SIZE(coda_supported_firmwares); i++)
934 if (vernum == coda_supported_firmwares[i])
935 return true;
936 return false;
937 }
938
coda_check_firmware(struct coda_dev * dev)939 int coda_check_firmware(struct coda_dev *dev)
940 {
941 u16 product, major, minor, release;
942 u32 data;
943 int ret;
944
945 ret = clk_prepare_enable(dev->clk_per);
946 if (ret)
947 goto err_clk_per;
948
949 ret = clk_prepare_enable(dev->clk_ahb);
950 if (ret)
951 goto err_clk_ahb;
952
953 coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM);
954 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
955 coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX);
956 coda_write(dev, 0, CODA_REG_BIT_RUN_COD_STD);
957 coda_write(dev, CODA_COMMAND_FIRMWARE_GET, CODA_REG_BIT_RUN_COMMAND);
958 if (coda_wait_timeout(dev)) {
959 v4l2_err(&dev->v4l2_dev, "firmware get command error\n");
960 ret = -EIO;
961 goto err_run_cmd;
962 }
963
964 if (dev->devtype->product == CODA_960) {
965 data = coda_read(dev, CODA9_CMD_FIRMWARE_CODE_REV);
966 v4l2_info(&dev->v4l2_dev, "Firmware code revision: %d\n",
967 data);
968 }
969
970 /* Check we are compatible with the loaded firmware */
971 data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM);
972 product = CODA_FIRMWARE_PRODUCT(data);
973 major = CODA_FIRMWARE_MAJOR(data);
974 minor = CODA_FIRMWARE_MINOR(data);
975 release = CODA_FIRMWARE_RELEASE(data);
976
977 clk_disable_unprepare(dev->clk_per);
978 clk_disable_unprepare(dev->clk_ahb);
979
980 if (product != dev->devtype->product) {
981 v4l2_err(&dev->v4l2_dev,
982 "Wrong firmware. Hw: %s, Fw: %s, Version: %u.%u.%u\n",
983 coda_product_name(dev->devtype->product),
984 coda_product_name(product), major, minor, release);
985 return -EINVAL;
986 }
987
988 v4l2_info(&dev->v4l2_dev, "Initialized %s.\n",
989 coda_product_name(product));
990
991 if (coda_firmware_supported(data)) {
992 v4l2_info(&dev->v4l2_dev, "Firmware version: %u.%u.%u\n",
993 major, minor, release);
994 } else {
995 v4l2_warn(&dev->v4l2_dev,
996 "Unsupported firmware version: %u.%u.%u\n",
997 major, minor, release);
998 }
999
1000 return 0;
1001
1002 err_run_cmd:
1003 clk_disable_unprepare(dev->clk_ahb);
1004 err_clk_ahb:
1005 clk_disable_unprepare(dev->clk_per);
1006 err_clk_per:
1007 return ret;
1008 }
1009
coda9_set_frame_cache(struct coda_ctx * ctx,u32 fourcc)1010 static void coda9_set_frame_cache(struct coda_ctx *ctx, u32 fourcc)
1011 {
1012 u32 cache_size, cache_config;
1013
1014 if (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) {
1015 /* Luma 2x0 page, 2x6 cache, chroma 2x0 page, 2x4 cache size */
1016 cache_size = 0x20262024;
1017 cache_config = 2 << CODA9_CACHE_PAGEMERGE_OFFSET;
1018 } else {
1019 /* Luma 0x2 page, 4x4 cache, chroma 0x2 page, 4x3 cache size */
1020 cache_size = 0x02440243;
1021 cache_config = 1 << CODA9_CACHE_PAGEMERGE_OFFSET;
1022 }
1023 coda_write(ctx->dev, cache_size, CODA9_CMD_SET_FRAME_CACHE_SIZE);
1024 if (fourcc == V4L2_PIX_FMT_NV12 || fourcc == V4L2_PIX_FMT_YUYV) {
1025 cache_config |= 32 << CODA9_CACHE_LUMA_BUFFER_SIZE_OFFSET |
1026 16 << CODA9_CACHE_CR_BUFFER_SIZE_OFFSET |
1027 0 << CODA9_CACHE_CB_BUFFER_SIZE_OFFSET;
1028 } else {
1029 cache_config |= 32 << CODA9_CACHE_LUMA_BUFFER_SIZE_OFFSET |
1030 8 << CODA9_CACHE_CR_BUFFER_SIZE_OFFSET |
1031 8 << CODA9_CACHE_CB_BUFFER_SIZE_OFFSET;
1032 }
1033 coda_write(ctx->dev, cache_config, CODA9_CMD_SET_FRAME_CACHE_CONFIG);
1034 }
1035
1036 /*
1037 * Encoder context operations
1038 */
1039
coda_encoder_reqbufs(struct coda_ctx * ctx,struct v4l2_requestbuffers * rb)1040 static int coda_encoder_reqbufs(struct coda_ctx *ctx,
1041 struct v4l2_requestbuffers *rb)
1042 {
1043 struct coda_q_data *q_data_src;
1044 int ret;
1045
1046 if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1047 return 0;
1048
1049 if (rb->count) {
1050 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1051 ret = coda_alloc_context_buffers(ctx, q_data_src);
1052 if (ret < 0)
1053 return ret;
1054 } else {
1055 coda_free_context_buffers(ctx);
1056 }
1057
1058 return 0;
1059 }
1060
coda_start_encoding(struct coda_ctx * ctx)1061 static int coda_start_encoding(struct coda_ctx *ctx)
1062 {
1063 struct coda_dev *dev = ctx->dev;
1064 struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
1065 struct coda_q_data *q_data_src, *q_data_dst;
1066 u32 bitstream_buf, bitstream_size;
1067 struct vb2_v4l2_buffer *buf;
1068 int gamma, ret, value;
1069 u32 dst_fourcc;
1070 int num_fb;
1071 u32 stride;
1072
1073 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1074 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1075 dst_fourcc = q_data_dst->fourcc;
1076
1077 buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1078 bitstream_buf = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0);
1079 bitstream_size = q_data_dst->sizeimage;
1080
1081 if (!coda_is_initialized(dev)) {
1082 v4l2_err(v4l2_dev, "coda is not initialized.\n");
1083 return -EFAULT;
1084 }
1085
1086 if (dst_fourcc == V4L2_PIX_FMT_JPEG) {
1087 if (!ctx->params.jpeg_qmat_tab[0]) {
1088 ctx->params.jpeg_qmat_tab[0] = kmalloc(64, GFP_KERNEL);
1089 if (!ctx->params.jpeg_qmat_tab[0])
1090 return -ENOMEM;
1091 }
1092 if (!ctx->params.jpeg_qmat_tab[1]) {
1093 ctx->params.jpeg_qmat_tab[1] = kmalloc(64, GFP_KERNEL);
1094 if (!ctx->params.jpeg_qmat_tab[1])
1095 return -ENOMEM;
1096 }
1097 coda_set_jpeg_compression_quality(ctx, ctx->params.jpeg_quality);
1098 }
1099
1100 mutex_lock(&dev->coda_mutex);
1101
1102 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
1103 coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
1104 coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
1105 switch (dev->devtype->product) {
1106 case CODA_DX6:
1107 coda_write(dev, CODADX6_STREAM_BUF_DYNALLOC_EN |
1108 CODADX6_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
1109 break;
1110 case CODA_960:
1111 coda_write(dev, 0, CODA9_GDI_WPROT_RGN_EN);
1112 fallthrough;
1113 case CODA_HX4:
1114 case CODA_7541:
1115 coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN |
1116 CODA7_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
1117 break;
1118 }
1119
1120 ctx->frame_mem_ctrl &= ~(CODA_FRAME_CHROMA_INTERLEAVE | (0x3 << 9) |
1121 CODA9_FRAME_TILED2LINEAR);
1122 if (q_data_src->fourcc == V4L2_PIX_FMT_NV12)
1123 ctx->frame_mem_ctrl |= CODA_FRAME_CHROMA_INTERLEAVE;
1124 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
1125 ctx->frame_mem_ctrl |= (0x3 << 9) | CODA9_FRAME_TILED2LINEAR;
1126 coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
1127
1128 if (dev->devtype->product == CODA_DX6) {
1129 /* Configure the coda */
1130 coda_write(dev, dev->iram.paddr,
1131 CODADX6_REG_BIT_SEARCH_RAM_BASE_ADDR);
1132 }
1133
1134 /* Could set rotation here if needed */
1135 value = 0;
1136 switch (dev->devtype->product) {
1137 case CODA_DX6:
1138 value = (q_data_src->rect.width & CODADX6_PICWIDTH_MASK)
1139 << CODADX6_PICWIDTH_OFFSET;
1140 value |= (q_data_src->rect.height & CODADX6_PICHEIGHT_MASK)
1141 << CODA_PICHEIGHT_OFFSET;
1142 break;
1143 case CODA_HX4:
1144 case CODA_7541:
1145 if (dst_fourcc == V4L2_PIX_FMT_H264) {
1146 value = (round_up(q_data_src->rect.width, 16) &
1147 CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET;
1148 value |= (round_up(q_data_src->rect.height, 16) &
1149 CODA7_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
1150 break;
1151 }
1152 fallthrough;
1153 case CODA_960:
1154 value = (q_data_src->rect.width & CODA7_PICWIDTH_MASK)
1155 << CODA7_PICWIDTH_OFFSET;
1156 value |= (q_data_src->rect.height & CODA7_PICHEIGHT_MASK)
1157 << CODA_PICHEIGHT_OFFSET;
1158 }
1159 coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE);
1160 if (dst_fourcc == V4L2_PIX_FMT_JPEG)
1161 ctx->params.framerate = 0;
1162 coda_write(dev, ctx->params.framerate,
1163 CODA_CMD_ENC_SEQ_SRC_F_RATE);
1164
1165 ctx->params.codec_mode = ctx->codec->mode;
1166 switch (dst_fourcc) {
1167 case V4L2_PIX_FMT_MPEG4:
1168 if (dev->devtype->product == CODA_960)
1169 coda_write(dev, CODA9_STD_MPEG4,
1170 CODA_CMD_ENC_SEQ_COD_STD);
1171 else
1172 coda_write(dev, CODA_STD_MPEG4,
1173 CODA_CMD_ENC_SEQ_COD_STD);
1174 coda_write(dev, 0, CODA_CMD_ENC_SEQ_MP4_PARA);
1175 break;
1176 case V4L2_PIX_FMT_H264:
1177 if (dev->devtype->product == CODA_960)
1178 coda_write(dev, CODA9_STD_H264,
1179 CODA_CMD_ENC_SEQ_COD_STD);
1180 else
1181 coda_write(dev, CODA_STD_H264,
1182 CODA_CMD_ENC_SEQ_COD_STD);
1183 value = ((ctx->params.h264_disable_deblocking_filter_idc &
1184 CODA_264PARAM_DISABLEDEBLK_MASK) <<
1185 CODA_264PARAM_DISABLEDEBLK_OFFSET) |
1186 ((ctx->params.h264_slice_alpha_c0_offset_div2 &
1187 CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK) <<
1188 CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET) |
1189 ((ctx->params.h264_slice_beta_offset_div2 &
1190 CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) <<
1191 CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET) |
1192 (ctx->params.h264_constrained_intra_pred_flag <<
1193 CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_OFFSET) |
1194 (ctx->params.h264_chroma_qp_index_offset &
1195 CODA_264PARAM_CHROMAQPOFFSET_MASK);
1196 coda_write(dev, value, CODA_CMD_ENC_SEQ_264_PARA);
1197 break;
1198 case V4L2_PIX_FMT_JPEG:
1199 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_PARA);
1200 coda_write(dev, ctx->params.jpeg_restart_interval,
1201 CODA_CMD_ENC_SEQ_JPG_RST_INTERVAL);
1202 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_EN);
1203 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_SIZE);
1204 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_OFFSET);
1205
1206 coda_jpeg_write_tables(ctx);
1207 break;
1208 default:
1209 v4l2_err(v4l2_dev,
1210 "dst format (0x%08x) invalid.\n", dst_fourcc);
1211 ret = -EINVAL;
1212 goto out;
1213 }
1214
1215 /*
1216 * slice mode and GOP size registers are used for thumb size/offset
1217 * in JPEG mode
1218 */
1219 if (dst_fourcc != V4L2_PIX_FMT_JPEG) {
1220 value = coda_slice_mode(ctx);
1221 coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE);
1222 value = ctx->params.gop_size;
1223 coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE);
1224 }
1225
1226 if (ctx->params.bitrate && (ctx->params.frame_rc_enable ||
1227 ctx->params.mb_rc_enable)) {
1228 ctx->params.bitrate_changed = false;
1229 ctx->params.h264_intra_qp_changed = false;
1230
1231 /* Rate control enabled */
1232 value = (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK)
1233 << CODA_RATECONTROL_BITRATE_OFFSET;
1234 value |= 1 & CODA_RATECONTROL_ENABLE_MASK;
1235 value |= (ctx->params.vbv_delay &
1236 CODA_RATECONTROL_INITIALDELAY_MASK)
1237 << CODA_RATECONTROL_INITIALDELAY_OFFSET;
1238 if (dev->devtype->product == CODA_960)
1239 value |= BIT(31); /* disable autoskip */
1240 } else {
1241 value = 0;
1242 }
1243 coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA);
1244
1245 coda_write(dev, ctx->params.vbv_size, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);
1246 coda_write(dev, ctx->params.intra_refresh,
1247 CODA_CMD_ENC_SEQ_INTRA_REFRESH);
1248
1249 coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START);
1250 coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
1251
1252
1253 value = 0;
1254 if (dev->devtype->product == CODA_960)
1255 gamma = CODA9_DEFAULT_GAMMA;
1256 else
1257 gamma = CODA_DEFAULT_GAMMA;
1258 if (gamma > 0) {
1259 coda_write(dev, (gamma & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET,
1260 CODA_CMD_ENC_SEQ_RC_GAMMA);
1261 }
1262
1263 if (ctx->params.h264_min_qp || ctx->params.h264_max_qp) {
1264 coda_write(dev,
1265 ctx->params.h264_min_qp << CODA_QPMIN_OFFSET |
1266 ctx->params.h264_max_qp << CODA_QPMAX_OFFSET,
1267 CODA_CMD_ENC_SEQ_RC_QP_MIN_MAX);
1268 }
1269 if (dev->devtype->product == CODA_960) {
1270 if (ctx->params.h264_max_qp)
1271 value |= 1 << CODA9_OPTION_RCQPMAX_OFFSET;
1272 if (CODA_DEFAULT_GAMMA > 0)
1273 value |= 1 << CODA9_OPTION_GAMMA_OFFSET;
1274 } else {
1275 if (CODA_DEFAULT_GAMMA > 0) {
1276 if (dev->devtype->product == CODA_DX6)
1277 value |= 1 << CODADX6_OPTION_GAMMA_OFFSET;
1278 else
1279 value |= 1 << CODA7_OPTION_GAMMA_OFFSET;
1280 }
1281 if (ctx->params.h264_min_qp)
1282 value |= 1 << CODA7_OPTION_RCQPMIN_OFFSET;
1283 if (ctx->params.h264_max_qp)
1284 value |= 1 << CODA7_OPTION_RCQPMAX_OFFSET;
1285 }
1286 coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION);
1287
1288 if (ctx->params.frame_rc_enable && !ctx->params.mb_rc_enable)
1289 value = 1;
1290 else
1291 value = 0;
1292 coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_INTERVAL_MODE);
1293
1294 coda_setup_iram(ctx);
1295
1296 if (dst_fourcc == V4L2_PIX_FMT_H264) {
1297 switch (dev->devtype->product) {
1298 case CODA_DX6:
1299 value = FMO_SLICE_SAVE_BUF_SIZE << 7;
1300 coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO);
1301 break;
1302 case CODA_HX4:
1303 case CODA_7541:
1304 coda_write(dev, ctx->iram_info.search_ram_paddr,
1305 CODA7_CMD_ENC_SEQ_SEARCH_BASE);
1306 coda_write(dev, ctx->iram_info.search_ram_size,
1307 CODA7_CMD_ENC_SEQ_SEARCH_SIZE);
1308 break;
1309 case CODA_960:
1310 coda_write(dev, 0, CODA9_CMD_ENC_SEQ_ME_OPTION);
1311 coda_write(dev, 0, CODA9_CMD_ENC_SEQ_INTRA_WEIGHT);
1312 }
1313 }
1314
1315 ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
1316 if (ret < 0) {
1317 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
1318 goto out;
1319 }
1320
1321 if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0) {
1322 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT failed\n");
1323 ret = -EFAULT;
1324 goto out;
1325 }
1326 ctx->initialized = 1;
1327
1328 if (dst_fourcc != V4L2_PIX_FMT_JPEG) {
1329 if (dev->devtype->product == CODA_960)
1330 ctx->num_internal_frames = 4;
1331 else
1332 ctx->num_internal_frames = 2;
1333 ret = coda_alloc_framebuffers(ctx, q_data_src, dst_fourcc);
1334 if (ret < 0) {
1335 v4l2_err(v4l2_dev, "failed to allocate framebuffers\n");
1336 goto out;
1337 }
1338 num_fb = 2;
1339 stride = q_data_src->bytesperline;
1340 } else {
1341 ctx->num_internal_frames = 0;
1342 num_fb = 0;
1343 stride = 0;
1344 }
1345 coda_write(dev, num_fb, CODA_CMD_SET_FRAME_BUF_NUM);
1346 coda_write(dev, stride, CODA_CMD_SET_FRAME_BUF_STRIDE);
1347
1348 if (dev->devtype->product == CODA_HX4 ||
1349 dev->devtype->product == CODA_7541) {
1350 coda_write(dev, q_data_src->bytesperline,
1351 CODA7_CMD_SET_FRAME_SOURCE_BUF_STRIDE);
1352 }
1353 if (dev->devtype->product != CODA_DX6) {
1354 coda_write(dev, ctx->iram_info.buf_bit_use,
1355 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
1356 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
1357 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
1358 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
1359 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
1360 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
1361 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
1362 coda_write(dev, ctx->iram_info.buf_ovl_use,
1363 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
1364 if (dev->devtype->product == CODA_960) {
1365 coda_write(dev, ctx->iram_info.buf_btp_use,
1366 CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
1367
1368 coda9_set_frame_cache(ctx, q_data_src->fourcc);
1369
1370 /* FIXME */
1371 coda_write(dev, ctx->internal_frames[2].buf.paddr,
1372 CODA9_CMD_SET_FRAME_SUBSAMP_A);
1373 coda_write(dev, ctx->internal_frames[3].buf.paddr,
1374 CODA9_CMD_SET_FRAME_SUBSAMP_B);
1375 }
1376 }
1377
1378 ret = coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF);
1379 if (ret < 0) {
1380 v4l2_err(v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
1381 goto out;
1382 }
1383
1384 coda_dbg(1, ctx, "start encoding %dx%d %4.4s->%4.4s @ %d/%d Hz\n",
1385 q_data_src->rect.width, q_data_src->rect.height,
1386 (char *)&ctx->codec->src_fourcc, (char *)&dst_fourcc,
1387 ctx->params.framerate & 0xffff,
1388 (ctx->params.framerate >> 16) + 1);
1389
1390 /* Save stream headers */
1391 buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1392 switch (dst_fourcc) {
1393 case V4L2_PIX_FMT_H264:
1394 /*
1395 * Get SPS in the first frame and copy it to an
1396 * intermediate buffer.
1397 */
1398 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_SPS,
1399 &ctx->vpu_header[0][0],
1400 &ctx->vpu_header_size[0]);
1401 if (ret < 0)
1402 goto out;
1403
1404 /*
1405 * If visible width or height are not aligned to macroblock
1406 * size, the crop_right and crop_bottom SPS fields must be set
1407 * to the difference between visible and coded size. This is
1408 * only supported by CODA960 firmware. All others do not allow
1409 * writing frame cropping parameters, so we have to manually
1410 * fix up the SPS RBSP (Sequence Parameter Set Raw Byte
1411 * Sequence Payload) ourselves.
1412 */
1413 if (ctx->dev->devtype->product != CODA_960 &&
1414 ((q_data_src->rect.width % 16) ||
1415 (q_data_src->rect.height % 16))) {
1416 ret = coda_h264_sps_fixup(ctx, q_data_src->rect.width,
1417 q_data_src->rect.height,
1418 &ctx->vpu_header[0][0],
1419 &ctx->vpu_header_size[0],
1420 sizeof(ctx->vpu_header[0]));
1421 if (ret < 0)
1422 goto out;
1423 }
1424
1425 /*
1426 * Get PPS in the first frame and copy it to an
1427 * intermediate buffer.
1428 */
1429 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_PPS,
1430 &ctx->vpu_header[1][0],
1431 &ctx->vpu_header_size[1]);
1432 if (ret < 0)
1433 goto out;
1434
1435 /*
1436 * Length of H.264 headers is variable and thus it might not be
1437 * aligned for the coda to append the encoded frame. In that is
1438 * the case a filler NAL must be added to header 2.
1439 */
1440 ctx->vpu_header_size[2] = coda_h264_padding(
1441 (ctx->vpu_header_size[0] +
1442 ctx->vpu_header_size[1]),
1443 ctx->vpu_header[2]);
1444 break;
1445 case V4L2_PIX_FMT_MPEG4:
1446 /*
1447 * Get VOS in the first frame and copy it to an
1448 * intermediate buffer
1449 */
1450 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOS,
1451 &ctx->vpu_header[0][0],
1452 &ctx->vpu_header_size[0]);
1453 if (ret < 0)
1454 goto out;
1455
1456 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VIS,
1457 &ctx->vpu_header[1][0],
1458 &ctx->vpu_header_size[1]);
1459 if (ret < 0)
1460 goto out;
1461
1462 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOL,
1463 &ctx->vpu_header[2][0],
1464 &ctx->vpu_header_size[2]);
1465 if (ret < 0)
1466 goto out;
1467 break;
1468 default:
1469 /* No more formats need to save headers at the moment */
1470 break;
1471 }
1472
1473 out:
1474 mutex_unlock(&dev->coda_mutex);
1475 return ret;
1476 }
1477
coda_prepare_encode(struct coda_ctx * ctx)1478 static int coda_prepare_encode(struct coda_ctx *ctx)
1479 {
1480 struct coda_q_data *q_data_src, *q_data_dst;
1481 struct vb2_v4l2_buffer *src_buf, *dst_buf;
1482 struct coda_dev *dev = ctx->dev;
1483 int force_ipicture;
1484 int quant_param = 0;
1485 u32 pic_stream_buffer_addr, pic_stream_buffer_size;
1486 u32 rot_mode = 0;
1487 u32 dst_fourcc;
1488 u32 reg;
1489 int ret;
1490
1491 ret = coda_enc_param_change(ctx);
1492 if (ret < 0) {
1493 v4l2_warn(&ctx->dev->v4l2_dev, "parameter change failed: %d\n",
1494 ret);
1495 }
1496
1497 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
1498 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1499 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1500 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1501 dst_fourcc = q_data_dst->fourcc;
1502
1503 src_buf->sequence = ctx->osequence;
1504 dst_buf->sequence = ctx->osequence;
1505 ctx->osequence++;
1506
1507 force_ipicture = ctx->params.force_ipicture;
1508 if (force_ipicture)
1509 ctx->params.force_ipicture = false;
1510 else if (ctx->params.gop_size != 0 &&
1511 (src_buf->sequence % ctx->params.gop_size) == 0)
1512 force_ipicture = 1;
1513
1514 /*
1515 * Workaround coda firmware BUG that only marks the first
1516 * frame as IDR. This is a problem for some decoders that can't
1517 * recover when a frame is lost.
1518 */
1519 if (!force_ipicture) {
1520 src_buf->flags |= V4L2_BUF_FLAG_PFRAME;
1521 src_buf->flags &= ~V4L2_BUF_FLAG_KEYFRAME;
1522 } else {
1523 src_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;
1524 src_buf->flags &= ~V4L2_BUF_FLAG_PFRAME;
1525 }
1526
1527 if (dev->devtype->product == CODA_960)
1528 coda_set_gdi_regs(ctx);
1529
1530 /*
1531 * Copy headers in front of the first frame and forced I frames for
1532 * H.264 only. In MPEG4 they are already copied by the CODA.
1533 */
1534 if (src_buf->sequence == 0 || force_ipicture) {
1535 pic_stream_buffer_addr =
1536 vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0) +
1537 ctx->vpu_header_size[0] +
1538 ctx->vpu_header_size[1] +
1539 ctx->vpu_header_size[2];
1540 pic_stream_buffer_size = q_data_dst->sizeimage -
1541 ctx->vpu_header_size[0] -
1542 ctx->vpu_header_size[1] -
1543 ctx->vpu_header_size[2];
1544 memcpy(vb2_plane_vaddr(&dst_buf->vb2_buf, 0),
1545 &ctx->vpu_header[0][0], ctx->vpu_header_size[0]);
1546 memcpy(vb2_plane_vaddr(&dst_buf->vb2_buf, 0)
1547 + ctx->vpu_header_size[0], &ctx->vpu_header[1][0],
1548 ctx->vpu_header_size[1]);
1549 memcpy(vb2_plane_vaddr(&dst_buf->vb2_buf, 0)
1550 + ctx->vpu_header_size[0] + ctx->vpu_header_size[1],
1551 &ctx->vpu_header[2][0], ctx->vpu_header_size[2]);
1552 } else {
1553 pic_stream_buffer_addr =
1554 vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
1555 pic_stream_buffer_size = q_data_dst->sizeimage;
1556 }
1557
1558 if (force_ipicture) {
1559 switch (dst_fourcc) {
1560 case V4L2_PIX_FMT_H264:
1561 quant_param = ctx->params.h264_intra_qp;
1562 break;
1563 case V4L2_PIX_FMT_MPEG4:
1564 quant_param = ctx->params.mpeg4_intra_qp;
1565 break;
1566 case V4L2_PIX_FMT_JPEG:
1567 quant_param = 30;
1568 break;
1569 default:
1570 v4l2_warn(&ctx->dev->v4l2_dev,
1571 "cannot set intra qp, fmt not supported\n");
1572 break;
1573 }
1574 } else {
1575 switch (dst_fourcc) {
1576 case V4L2_PIX_FMT_H264:
1577 quant_param = ctx->params.h264_inter_qp;
1578 break;
1579 case V4L2_PIX_FMT_MPEG4:
1580 quant_param = ctx->params.mpeg4_inter_qp;
1581 break;
1582 default:
1583 v4l2_warn(&ctx->dev->v4l2_dev,
1584 "cannot set inter qp, fmt not supported\n");
1585 break;
1586 }
1587 }
1588
1589 /* submit */
1590 if (ctx->params.rot_mode)
1591 rot_mode = CODA_ROT_MIR_ENABLE | ctx->params.rot_mode;
1592 coda_write(dev, rot_mode, CODA_CMD_ENC_PIC_ROT_MODE);
1593 coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS);
1594
1595 if (dev->devtype->product == CODA_960) {
1596 coda_write(dev, 4/*FIXME: 0*/, CODA9_CMD_ENC_PIC_SRC_INDEX);
1597 coda_write(dev, q_data_src->bytesperline,
1598 CODA9_CMD_ENC_PIC_SRC_STRIDE);
1599 coda_write(dev, 0, CODA9_CMD_ENC_PIC_SUB_FRAME_SYNC);
1600
1601 reg = CODA9_CMD_ENC_PIC_SRC_ADDR_Y;
1602 } else {
1603 reg = CODA_CMD_ENC_PIC_SRC_ADDR_Y;
1604 }
1605 coda_write_base(ctx, q_data_src, src_buf, reg);
1606
1607 coda_write(dev, force_ipicture << 1 & 0x2,
1608 CODA_CMD_ENC_PIC_OPTION);
1609
1610 coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START);
1611 coda_write(dev, pic_stream_buffer_size / 1024,
1612 CODA_CMD_ENC_PIC_BB_SIZE);
1613
1614 if (!ctx->streamon_out) {
1615 /* After streamoff on the output side, set stream end flag */
1616 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1617 coda_write(dev, ctx->bit_stream_param,
1618 CODA_REG_BIT_BIT_STREAM_PARAM);
1619 }
1620
1621 if (dev->devtype->product != CODA_DX6)
1622 coda_write(dev, ctx->iram_info.axi_sram_use,
1623 CODA7_REG_BIT_AXI_SRAM_USE);
1624
1625 trace_coda_enc_pic_run(ctx, src_buf);
1626
1627 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
1628
1629 return 0;
1630 }
1631
coda_frame_type_char(u32 flags)1632 static char coda_frame_type_char(u32 flags)
1633 {
1634 return (flags & V4L2_BUF_FLAG_KEYFRAME) ? 'I' :
1635 (flags & V4L2_BUF_FLAG_PFRAME) ? 'P' :
1636 (flags & V4L2_BUF_FLAG_BFRAME) ? 'B' : '?';
1637 }
1638
coda_finish_encode(struct coda_ctx * ctx)1639 static void coda_finish_encode(struct coda_ctx *ctx)
1640 {
1641 struct vb2_v4l2_buffer *src_buf, *dst_buf;
1642 struct coda_dev *dev = ctx->dev;
1643 u32 wr_ptr, start_ptr;
1644
1645 if (ctx->aborting)
1646 return;
1647
1648 /*
1649 * Lock to make sure that an encoder stop command running in parallel
1650 * will either already have marked src_buf as last, or it will wake up
1651 * the capture queue after the buffers are returned.
1652 */
1653 mutex_lock(&ctx->wakeup_mutex);
1654 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
1655 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1656
1657 trace_coda_enc_pic_done(ctx, dst_buf);
1658
1659 /* Get results from the coda */
1660 start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
1661 wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
1662
1663 /* Calculate bytesused field */
1664 if (dst_buf->sequence == 0 ||
1665 src_buf->flags & V4L2_BUF_FLAG_KEYFRAME) {
1666 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, wr_ptr - start_ptr +
1667 ctx->vpu_header_size[0] +
1668 ctx->vpu_header_size[1] +
1669 ctx->vpu_header_size[2]);
1670 } else {
1671 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, wr_ptr - start_ptr);
1672 }
1673
1674 coda_dbg(1, ctx, "frame size = %u\n", wr_ptr - start_ptr);
1675
1676 coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM);
1677 coda_read(dev, CODA_RET_ENC_PIC_FLAG);
1678
1679 dst_buf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME |
1680 V4L2_BUF_FLAG_PFRAME |
1681 V4L2_BUF_FLAG_LAST);
1682 if (coda_read(dev, CODA_RET_ENC_PIC_TYPE) == 0)
1683 dst_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;
1684 else
1685 dst_buf->flags |= V4L2_BUF_FLAG_PFRAME;
1686 dst_buf->flags |= src_buf->flags & V4L2_BUF_FLAG_LAST;
1687
1688 v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, false);
1689
1690 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
1691
1692 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
1693 coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_DONE);
1694 mutex_unlock(&ctx->wakeup_mutex);
1695
1696 ctx->gopcounter--;
1697 if (ctx->gopcounter < 0)
1698 ctx->gopcounter = ctx->params.gop_size - 1;
1699
1700 coda_dbg(1, ctx, "job finished: encoded %c frame (%d)%s\n",
1701 coda_frame_type_char(dst_buf->flags), dst_buf->sequence,
1702 (dst_buf->flags & V4L2_BUF_FLAG_LAST) ? " (last)" : "");
1703 }
1704
coda_seq_end_work(struct work_struct * work)1705 static void coda_seq_end_work(struct work_struct *work)
1706 {
1707 struct coda_ctx *ctx = container_of(work, struct coda_ctx, seq_end_work);
1708 struct coda_dev *dev = ctx->dev;
1709
1710 mutex_lock(&ctx->buffer_mutex);
1711 mutex_lock(&dev->coda_mutex);
1712
1713 if (ctx->initialized == 0)
1714 goto out;
1715
1716 coda_dbg(1, ctx, "%s: sent command 'SEQ_END' to coda\n", __func__);
1717 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
1718 v4l2_err(&dev->v4l2_dev,
1719 "CODA_COMMAND_SEQ_END failed\n");
1720 }
1721
1722 /*
1723 * FIXME: Sometimes h.264 encoding fails with 8-byte sequences missing
1724 * from the output stream after the h.264 decoder has run. Resetting the
1725 * hardware after the decoder has finished seems to help.
1726 */
1727 if (dev->devtype->product == CODA_960)
1728 coda_hw_reset(ctx);
1729
1730 kfifo_init(&ctx->bitstream_fifo,
1731 ctx->bitstream.vaddr, ctx->bitstream.size);
1732
1733 coda_free_framebuffers(ctx);
1734
1735 ctx->initialized = 0;
1736
1737 out:
1738 mutex_unlock(&dev->coda_mutex);
1739 mutex_unlock(&ctx->buffer_mutex);
1740 }
1741
coda_bit_release(struct coda_ctx * ctx)1742 static void coda_bit_release(struct coda_ctx *ctx)
1743 {
1744 mutex_lock(&ctx->buffer_mutex);
1745 coda_free_framebuffers(ctx);
1746 coda_free_context_buffers(ctx);
1747 coda_free_bitstream_buffer(ctx);
1748 mutex_unlock(&ctx->buffer_mutex);
1749 }
1750
1751 const struct coda_context_ops coda_bit_encode_ops = {
1752 .queue_init = coda_encoder_queue_init,
1753 .reqbufs = coda_encoder_reqbufs,
1754 .start_streaming = coda_start_encoding,
1755 .prepare_run = coda_prepare_encode,
1756 .finish_run = coda_finish_encode,
1757 .seq_end_work = coda_seq_end_work,
1758 .release = coda_bit_release,
1759 };
1760
1761 /*
1762 * Decoder context operations
1763 */
1764
coda_alloc_bitstream_buffer(struct coda_ctx * ctx,struct coda_q_data * q_data)1765 static int coda_alloc_bitstream_buffer(struct coda_ctx *ctx,
1766 struct coda_q_data *q_data)
1767 {
1768 if (ctx->bitstream.vaddr)
1769 return 0;
1770
1771 ctx->bitstream.size = roundup_pow_of_two(q_data->sizeimage * 2);
1772 ctx->bitstream.vaddr = dma_alloc_wc(ctx->dev->dev, ctx->bitstream.size,
1773 &ctx->bitstream.paddr, GFP_KERNEL);
1774 if (!ctx->bitstream.vaddr) {
1775 v4l2_err(&ctx->dev->v4l2_dev,
1776 "failed to allocate bitstream ringbuffer");
1777 return -ENOMEM;
1778 }
1779 kfifo_init(&ctx->bitstream_fifo,
1780 ctx->bitstream.vaddr, ctx->bitstream.size);
1781
1782 return 0;
1783 }
1784
coda_free_bitstream_buffer(struct coda_ctx * ctx)1785 static void coda_free_bitstream_buffer(struct coda_ctx *ctx)
1786 {
1787 if (ctx->bitstream.vaddr == NULL)
1788 return;
1789
1790 dma_free_wc(ctx->dev->dev, ctx->bitstream.size, ctx->bitstream.vaddr,
1791 ctx->bitstream.paddr);
1792 ctx->bitstream.vaddr = NULL;
1793 kfifo_init(&ctx->bitstream_fifo, NULL, 0);
1794 }
1795
coda_decoder_reqbufs(struct coda_ctx * ctx,struct v4l2_requestbuffers * rb)1796 static int coda_decoder_reqbufs(struct coda_ctx *ctx,
1797 struct v4l2_requestbuffers *rb)
1798 {
1799 struct coda_q_data *q_data_src;
1800 int ret;
1801
1802 if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1803 return 0;
1804
1805 if (rb->count) {
1806 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1807 ret = coda_alloc_context_buffers(ctx, q_data_src);
1808 if (ret < 0)
1809 return ret;
1810 ret = coda_alloc_bitstream_buffer(ctx, q_data_src);
1811 if (ret < 0) {
1812 coda_free_context_buffers(ctx);
1813 return ret;
1814 }
1815 } else {
1816 coda_free_bitstream_buffer(ctx);
1817 coda_free_context_buffers(ctx);
1818 }
1819
1820 return 0;
1821 }
1822
coda_reorder_enable(struct coda_ctx * ctx)1823 static bool coda_reorder_enable(struct coda_ctx *ctx)
1824 {
1825 struct coda_dev *dev = ctx->dev;
1826 int profile;
1827
1828 if (dev->devtype->product != CODA_HX4 &&
1829 dev->devtype->product != CODA_7541 &&
1830 dev->devtype->product != CODA_960)
1831 return false;
1832
1833 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG)
1834 return false;
1835
1836 if (ctx->codec->src_fourcc != V4L2_PIX_FMT_H264)
1837 return true;
1838
1839 profile = coda_h264_profile(ctx->params.h264_profile_idc);
1840 if (profile < 0)
1841 v4l2_warn(&dev->v4l2_dev, "Unknown H264 Profile: %u\n",
1842 ctx->params.h264_profile_idc);
1843
1844 /* Baseline profile does not support reordering */
1845 return profile > V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE;
1846 }
1847
coda_decoder_drop_used_metas(struct coda_ctx * ctx)1848 static void coda_decoder_drop_used_metas(struct coda_ctx *ctx)
1849 {
1850 struct coda_buffer_meta *meta, *tmp;
1851
1852 /*
1853 * All metas that end at or before the RD pointer (fifo out),
1854 * are now consumed by the VPU and should be released.
1855 */
1856 spin_lock(&ctx->buffer_meta_lock);
1857 list_for_each_entry_safe(meta, tmp, &ctx->buffer_meta_list, list) {
1858 if (ctx->bitstream_fifo.kfifo.out >= meta->end) {
1859 coda_dbg(2, ctx, "releasing meta: seq=%d start=%d end=%d\n",
1860 meta->sequence, meta->start, meta->end);
1861
1862 list_del(&meta->list);
1863 ctx->num_metas--;
1864 ctx->first_frame_sequence++;
1865 kfree(meta);
1866 }
1867 }
1868 spin_unlock(&ctx->buffer_meta_lock);
1869 }
1870
__coda_decoder_seq_init(struct coda_ctx * ctx)1871 static int __coda_decoder_seq_init(struct coda_ctx *ctx)
1872 {
1873 struct coda_q_data *q_data_src, *q_data_dst;
1874 u32 bitstream_buf, bitstream_size;
1875 struct coda_dev *dev = ctx->dev;
1876 int width, height;
1877 u32 src_fourcc, dst_fourcc;
1878 u32 val;
1879 int ret;
1880
1881 lockdep_assert_held(&dev->coda_mutex);
1882
1883 coda_dbg(1, ctx, "Video Data Order Adapter: %s\n",
1884 ctx->use_vdoa ? "Enabled" : "Disabled");
1885
1886 /* Start decoding */
1887 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1888 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1889 bitstream_buf = ctx->bitstream.paddr;
1890 bitstream_size = ctx->bitstream.size;
1891 src_fourcc = q_data_src->fourcc;
1892 dst_fourcc = q_data_dst->fourcc;
1893
1894 /* Update coda bitstream read and write pointers from kfifo */
1895 coda_kfifo_sync_to_device_full(ctx);
1896
1897 ctx->frame_mem_ctrl &= ~(CODA_FRAME_CHROMA_INTERLEAVE | (0x3 << 9) |
1898 CODA9_FRAME_TILED2LINEAR);
1899 if (dst_fourcc == V4L2_PIX_FMT_NV12 || dst_fourcc == V4L2_PIX_FMT_YUYV)
1900 ctx->frame_mem_ctrl |= CODA_FRAME_CHROMA_INTERLEAVE;
1901 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
1902 ctx->frame_mem_ctrl |= (0x3 << 9) |
1903 ((ctx->use_vdoa) ? 0 : CODA9_FRAME_TILED2LINEAR);
1904 coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
1905
1906 ctx->display_idx = -1;
1907 ctx->frm_dis_flg = 0;
1908 coda_write(dev, 0, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1909
1910 coda_write(dev, bitstream_buf, CODA_CMD_DEC_SEQ_BB_START);
1911 coda_write(dev, bitstream_size / 1024, CODA_CMD_DEC_SEQ_BB_SIZE);
1912 val = 0;
1913 if (coda_reorder_enable(ctx))
1914 val |= CODA_REORDER_ENABLE;
1915 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG)
1916 val |= CODA_NO_INT_ENABLE;
1917 coda_write(dev, val, CODA_CMD_DEC_SEQ_OPTION);
1918
1919 ctx->params.codec_mode = ctx->codec->mode;
1920 if (dev->devtype->product == CODA_960 &&
1921 src_fourcc == V4L2_PIX_FMT_MPEG4)
1922 ctx->params.codec_mode_aux = CODA_MP4_AUX_MPEG4;
1923 else
1924 ctx->params.codec_mode_aux = 0;
1925 if (src_fourcc == V4L2_PIX_FMT_MPEG4) {
1926 coda_write(dev, CODA_MP4_CLASS_MPEG4,
1927 CODA_CMD_DEC_SEQ_MP4_ASP_CLASS);
1928 }
1929 if (src_fourcc == V4L2_PIX_FMT_H264) {
1930 if (dev->devtype->product == CODA_HX4 ||
1931 dev->devtype->product == CODA_7541) {
1932 coda_write(dev, ctx->psbuf.paddr,
1933 CODA_CMD_DEC_SEQ_PS_BB_START);
1934 coda_write(dev, (CODA7_PS_BUF_SIZE / 1024),
1935 CODA_CMD_DEC_SEQ_PS_BB_SIZE);
1936 }
1937 if (dev->devtype->product == CODA_960) {
1938 coda_write(dev, 0, CODA_CMD_DEC_SEQ_X264_MV_EN);
1939 coda_write(dev, 512, CODA_CMD_DEC_SEQ_SPP_CHUNK_SIZE);
1940 }
1941 }
1942 if (src_fourcc == V4L2_PIX_FMT_JPEG)
1943 coda_write(dev, 0, CODA_CMD_DEC_SEQ_JPG_THUMB_EN);
1944 if (dev->devtype->product != CODA_960)
1945 coda_write(dev, 0, CODA_CMD_DEC_SEQ_SRC_SIZE);
1946
1947 ctx->bit_stream_param = CODA_BIT_DEC_SEQ_INIT_ESCAPE;
1948 ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
1949 ctx->bit_stream_param = 0;
1950 if (ret) {
1951 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
1952 return ret;
1953 }
1954 ctx->sequence_offset = ~0U;
1955 ctx->initialized = 1;
1956 ctx->first_frame_sequence = 0;
1957
1958 /* Update kfifo out pointer from coda bitstream read pointer */
1959 coda_kfifo_sync_from_device(ctx);
1960
1961 /*
1962 * After updating the read pointer, we need to check if
1963 * any metas are consumed and should be released.
1964 */
1965 coda_decoder_drop_used_metas(ctx);
1966
1967 if (coda_read(dev, CODA_RET_DEC_SEQ_SUCCESS) == 0) {
1968 v4l2_err(&dev->v4l2_dev,
1969 "CODA_COMMAND_SEQ_INIT failed, error code = 0x%x\n",
1970 coda_read(dev, CODA_RET_DEC_SEQ_ERR_REASON));
1971 return -EAGAIN;
1972 }
1973
1974 val = coda_read(dev, CODA_RET_DEC_SEQ_SRC_SIZE);
1975 if (dev->devtype->product == CODA_DX6) {
1976 width = (val >> CODADX6_PICWIDTH_OFFSET) & CODADX6_PICWIDTH_MASK;
1977 height = val & CODADX6_PICHEIGHT_MASK;
1978 } else {
1979 width = (val >> CODA7_PICWIDTH_OFFSET) & CODA7_PICWIDTH_MASK;
1980 height = val & CODA7_PICHEIGHT_MASK;
1981 }
1982
1983 if (width > q_data_dst->bytesperline || height > q_data_dst->height) {
1984 v4l2_err(&dev->v4l2_dev, "stream is %dx%d, not %dx%d\n",
1985 width, height, q_data_dst->bytesperline,
1986 q_data_dst->height);
1987 return -EINVAL;
1988 }
1989
1990 width = round_up(width, 16);
1991 height = round_up(height, 16);
1992
1993 coda_dbg(1, ctx, "start decoding: %dx%d\n", width, height);
1994
1995 ctx->num_internal_frames = coda_read(dev, CODA_RET_DEC_SEQ_FRAME_NEED);
1996 /*
1997 * If the VDOA is used, the decoder needs one additional frame,
1998 * because the frames are freed when the next frame is decoded.
1999 * Otherwise there are visible errors in the decoded frames (green
2000 * regions in displayed frames) and a broken order of frames (earlier
2001 * frames are sporadically displayed after later frames).
2002 */
2003 if (ctx->use_vdoa)
2004 ctx->num_internal_frames += 1;
2005 if (ctx->num_internal_frames > CODA_MAX_FRAMEBUFFERS) {
2006 v4l2_err(&dev->v4l2_dev,
2007 "not enough framebuffers to decode (%d < %d)\n",
2008 CODA_MAX_FRAMEBUFFERS, ctx->num_internal_frames);
2009 return -EINVAL;
2010 }
2011
2012 if (src_fourcc == V4L2_PIX_FMT_H264) {
2013 u32 left_right;
2014 u32 top_bottom;
2015
2016 left_right = coda_read(dev, CODA_RET_DEC_SEQ_CROP_LEFT_RIGHT);
2017 top_bottom = coda_read(dev, CODA_RET_DEC_SEQ_CROP_TOP_BOTTOM);
2018
2019 q_data_dst->rect.left = (left_right >> 10) & 0x3ff;
2020 q_data_dst->rect.top = (top_bottom >> 10) & 0x3ff;
2021 q_data_dst->rect.width = width - q_data_dst->rect.left -
2022 (left_right & 0x3ff);
2023 q_data_dst->rect.height = height - q_data_dst->rect.top -
2024 (top_bottom & 0x3ff);
2025 }
2026
2027 if (dev->devtype->product != CODA_DX6) {
2028 u8 profile, level;
2029
2030 val = coda_read(dev, CODA7_RET_DEC_SEQ_HEADER_REPORT);
2031 profile = val & 0xff;
2032 level = (val >> 8) & 0x7f;
2033
2034 if (profile || level)
2035 coda_update_profile_level_ctrls(ctx, profile, level);
2036 }
2037
2038 return 0;
2039 }
2040
coda_dec_seq_init_work(struct work_struct * work)2041 static void coda_dec_seq_init_work(struct work_struct *work)
2042 {
2043 struct coda_ctx *ctx = container_of(work,
2044 struct coda_ctx, seq_init_work);
2045 struct coda_dev *dev = ctx->dev;
2046
2047 mutex_lock(&ctx->buffer_mutex);
2048 mutex_lock(&dev->coda_mutex);
2049
2050 if (!ctx->initialized)
2051 __coda_decoder_seq_init(ctx);
2052
2053 mutex_unlock(&dev->coda_mutex);
2054 mutex_unlock(&ctx->buffer_mutex);
2055 }
2056
__coda_start_decoding(struct coda_ctx * ctx)2057 static int __coda_start_decoding(struct coda_ctx *ctx)
2058 {
2059 struct coda_q_data *q_data_src, *q_data_dst;
2060 struct coda_dev *dev = ctx->dev;
2061 u32 src_fourcc, dst_fourcc;
2062 int ret;
2063
2064 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
2065 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2066 src_fourcc = q_data_src->fourcc;
2067 dst_fourcc = q_data_dst->fourcc;
2068
2069 if (!ctx->initialized) {
2070 ret = __coda_decoder_seq_init(ctx);
2071 if (ret < 0)
2072 return ret;
2073 } else {
2074 ctx->frame_mem_ctrl &= ~(CODA_FRAME_CHROMA_INTERLEAVE | (0x3 << 9) |
2075 CODA9_FRAME_TILED2LINEAR);
2076 if (dst_fourcc == V4L2_PIX_FMT_NV12 || dst_fourcc == V4L2_PIX_FMT_YUYV)
2077 ctx->frame_mem_ctrl |= CODA_FRAME_CHROMA_INTERLEAVE;
2078 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
2079 ctx->frame_mem_ctrl |= (0x3 << 9) |
2080 ((ctx->use_vdoa) ? 0 : CODA9_FRAME_TILED2LINEAR);
2081 }
2082
2083 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
2084
2085 ret = coda_alloc_framebuffers(ctx, q_data_dst, src_fourcc);
2086 if (ret < 0) {
2087 v4l2_err(&dev->v4l2_dev, "failed to allocate framebuffers\n");
2088 return ret;
2089 }
2090
2091 /* Tell the decoder how many frame buffers we allocated. */
2092 coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
2093 coda_write(dev, round_up(q_data_dst->rect.width, 16),
2094 CODA_CMD_SET_FRAME_BUF_STRIDE);
2095
2096 if (dev->devtype->product != CODA_DX6) {
2097 /* Set secondary AXI IRAM */
2098 coda_setup_iram(ctx);
2099
2100 coda_write(dev, ctx->iram_info.buf_bit_use,
2101 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
2102 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
2103 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
2104 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
2105 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
2106 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
2107 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
2108 coda_write(dev, ctx->iram_info.buf_ovl_use,
2109 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
2110 if (dev->devtype->product == CODA_960) {
2111 coda_write(dev, ctx->iram_info.buf_btp_use,
2112 CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
2113
2114 coda_write(dev, -1, CODA9_CMD_SET_FRAME_DELAY);
2115 coda9_set_frame_cache(ctx, dst_fourcc);
2116 }
2117 }
2118
2119 if (src_fourcc == V4L2_PIX_FMT_H264) {
2120 coda_write(dev, ctx->slicebuf.paddr,
2121 CODA_CMD_SET_FRAME_SLICE_BB_START);
2122 coda_write(dev, ctx->slicebuf.size / 1024,
2123 CODA_CMD_SET_FRAME_SLICE_BB_SIZE);
2124 }
2125
2126 if (dev->devtype->product == CODA_HX4 ||
2127 dev->devtype->product == CODA_7541) {
2128 int max_mb_x = 1920 / 16;
2129 int max_mb_y = 1088 / 16;
2130 int max_mb_num = max_mb_x * max_mb_y;
2131
2132 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
2133 CODA7_CMD_SET_FRAME_MAX_DEC_SIZE);
2134 } else if (dev->devtype->product == CODA_960) {
2135 int max_mb_x = 1920 / 16;
2136 int max_mb_y = 1088 / 16;
2137 int max_mb_num = max_mb_x * max_mb_y;
2138
2139 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
2140 CODA9_CMD_SET_FRAME_MAX_DEC_SIZE);
2141 }
2142
2143 if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) {
2144 v4l2_err(&ctx->dev->v4l2_dev,
2145 "CODA_COMMAND_SET_FRAME_BUF timeout\n");
2146 return -ETIMEDOUT;
2147 }
2148
2149 return 0;
2150 }
2151
coda_start_decoding(struct coda_ctx * ctx)2152 static int coda_start_decoding(struct coda_ctx *ctx)
2153 {
2154 struct coda_dev *dev = ctx->dev;
2155 int ret;
2156
2157 mutex_lock(&dev->coda_mutex);
2158 ret = __coda_start_decoding(ctx);
2159 mutex_unlock(&dev->coda_mutex);
2160
2161 return ret;
2162 }
2163
coda_prepare_decode(struct coda_ctx * ctx)2164 static int coda_prepare_decode(struct coda_ctx *ctx)
2165 {
2166 struct vb2_v4l2_buffer *dst_buf;
2167 struct coda_dev *dev = ctx->dev;
2168 struct coda_q_data *q_data_dst;
2169 struct coda_buffer_meta *meta;
2170 u32 rot_mode = 0;
2171 u32 reg_addr, reg_stride;
2172
2173 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
2174 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2175
2176 /* Try to copy source buffer contents into the bitstream ringbuffer */
2177 mutex_lock(&ctx->bitstream_mutex);
2178 coda_fill_bitstream(ctx, NULL);
2179 mutex_unlock(&ctx->bitstream_mutex);
2180
2181 if (coda_get_bitstream_payload(ctx) < 512 &&
2182 (!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
2183 coda_dbg(1, ctx, "bitstream payload: %d, skipping\n",
2184 coda_get_bitstream_payload(ctx));
2185 return -EAGAIN;
2186 }
2187
2188 /* Run coda_start_decoding (again) if not yet initialized */
2189 if (!ctx->initialized) {
2190 int ret = __coda_start_decoding(ctx);
2191
2192 if (ret < 0) {
2193 v4l2_err(&dev->v4l2_dev, "failed to start decoding\n");
2194 return -EAGAIN;
2195 } else {
2196 ctx->initialized = 1;
2197 }
2198 }
2199
2200 if (dev->devtype->product == CODA_960)
2201 coda_set_gdi_regs(ctx);
2202
2203 if (ctx->use_vdoa &&
2204 ctx->display_idx >= 0 &&
2205 ctx->display_idx < ctx->num_internal_frames) {
2206 vdoa_device_run(ctx->vdoa,
2207 vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0),
2208 ctx->internal_frames[ctx->display_idx].buf.paddr);
2209 } else {
2210 if (dev->devtype->product == CODA_960) {
2211 /*
2212 * It was previously assumed that the CODA960 has an
2213 * internal list of 64 buffer entries that contains
2214 * both the registered internal frame buffers as well
2215 * as the rotator buffer output, and that the ROT_INDEX
2216 * register must be set to a value between the last
2217 * internal frame buffers' index and 64.
2218 * At least on firmware version 3.1.1 it turns out that
2219 * setting ROT_INDEX to any value >= 32 causes CODA
2220 * hangups that it can not recover from with the SRC VPU
2221 * reset.
2222 * It does appear to work however, to just set it to a
2223 * fixed value in the [ctx->num_internal_frames, 31]
2224 * range, for example CODA_MAX_FRAMEBUFFERS.
2225 */
2226 coda_write(dev, CODA_MAX_FRAMEBUFFERS,
2227 CODA9_CMD_DEC_PIC_ROT_INDEX);
2228
2229 reg_addr = CODA9_CMD_DEC_PIC_ROT_ADDR_Y;
2230 reg_stride = CODA9_CMD_DEC_PIC_ROT_STRIDE;
2231 } else {
2232 reg_addr = CODA_CMD_DEC_PIC_ROT_ADDR_Y;
2233 reg_stride = CODA_CMD_DEC_PIC_ROT_STRIDE;
2234 }
2235 coda_write_base(ctx, q_data_dst, dst_buf, reg_addr);
2236 coda_write(dev, q_data_dst->bytesperline, reg_stride);
2237
2238 rot_mode = CODA_ROT_MIR_ENABLE | ctx->params.rot_mode;
2239 }
2240
2241 coda_write(dev, rot_mode, CODA_CMD_DEC_PIC_ROT_MODE);
2242
2243 switch (dev->devtype->product) {
2244 case CODA_DX6:
2245 /* TBD */
2246 case CODA_HX4:
2247 case CODA_7541:
2248 coda_write(dev, CODA_PRE_SCAN_EN, CODA_CMD_DEC_PIC_OPTION);
2249 break;
2250 case CODA_960:
2251 /* 'hardcode to use interrupt disable mode'? */
2252 coda_write(dev, (1 << 10), CODA_CMD_DEC_PIC_OPTION);
2253 break;
2254 }
2255
2256 coda_write(dev, 0, CODA_CMD_DEC_PIC_SKIP_NUM);
2257
2258 coda_write(dev, 0, CODA_CMD_DEC_PIC_BB_START);
2259 coda_write(dev, 0, CODA_CMD_DEC_PIC_START_BYTE);
2260
2261 if (dev->devtype->product != CODA_DX6)
2262 coda_write(dev, ctx->iram_info.axi_sram_use,
2263 CODA7_REG_BIT_AXI_SRAM_USE);
2264
2265 spin_lock(&ctx->buffer_meta_lock);
2266 meta = list_first_entry_or_null(&ctx->buffer_meta_list,
2267 struct coda_buffer_meta, list);
2268
2269 if (meta && ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG) {
2270
2271 /* If this is the last buffer in the bitstream, add padding */
2272 if (meta->end == ctx->bitstream_fifo.kfifo.in) {
2273 static unsigned char buf[512];
2274 unsigned int pad;
2275
2276 /* Pad to multiple of 256 and then add 256 more */
2277 pad = ((0 - meta->end) & 0xff) + 256;
2278
2279 memset(buf, 0xff, sizeof(buf));
2280
2281 kfifo_in(&ctx->bitstream_fifo, buf, pad);
2282 }
2283 }
2284 spin_unlock(&ctx->buffer_meta_lock);
2285
2286 coda_kfifo_sync_to_device_full(ctx);
2287
2288 /* Clear decode success flag */
2289 coda_write(dev, 0, CODA_RET_DEC_PIC_SUCCESS);
2290
2291 /* Clear error return value */
2292 coda_write(dev, 0, CODA_RET_DEC_PIC_ERR_MB);
2293
2294 trace_coda_dec_pic_run(ctx, meta);
2295
2296 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
2297
2298 return 0;
2299 }
2300
coda_finish_decode(struct coda_ctx * ctx)2301 static void coda_finish_decode(struct coda_ctx *ctx)
2302 {
2303 struct coda_dev *dev = ctx->dev;
2304 struct coda_q_data *q_data_src;
2305 struct coda_q_data *q_data_dst;
2306 struct vb2_v4l2_buffer *dst_buf;
2307 struct coda_buffer_meta *meta;
2308 int width, height;
2309 int decoded_idx;
2310 int display_idx;
2311 struct coda_internal_frame *decoded_frame = NULL;
2312 u32 src_fourcc;
2313 int success;
2314 u32 err_mb;
2315 int err_vdoa = 0;
2316 u32 val;
2317
2318 if (ctx->aborting)
2319 return;
2320
2321 /* Update kfifo out pointer from coda bitstream read pointer */
2322 coda_kfifo_sync_from_device(ctx);
2323
2324 /*
2325 * in stream-end mode, the read pointer can overshoot the write pointer
2326 * by up to 512 bytes
2327 */
2328 if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) {
2329 if (coda_get_bitstream_payload(ctx) >= ctx->bitstream.size - 512)
2330 kfifo_init(&ctx->bitstream_fifo,
2331 ctx->bitstream.vaddr, ctx->bitstream.size);
2332 }
2333
2334 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
2335 src_fourcc = q_data_src->fourcc;
2336
2337 val = coda_read(dev, CODA_RET_DEC_PIC_SUCCESS);
2338 if (val != 1)
2339 pr_err("DEC_PIC_SUCCESS = %d\n", val);
2340
2341 success = val & 0x1;
2342 if (!success)
2343 v4l2_err(&dev->v4l2_dev, "decode failed\n");
2344
2345 if (src_fourcc == V4L2_PIX_FMT_H264) {
2346 if (val & (1 << 3))
2347 v4l2_err(&dev->v4l2_dev,
2348 "insufficient PS buffer space (%d bytes)\n",
2349 ctx->psbuf.size);
2350 if (val & (1 << 2))
2351 v4l2_err(&dev->v4l2_dev,
2352 "insufficient slice buffer space (%d bytes)\n",
2353 ctx->slicebuf.size);
2354 }
2355
2356 val = coda_read(dev, CODA_RET_DEC_PIC_SIZE);
2357 width = (val >> 16) & 0xffff;
2358 height = val & 0xffff;
2359
2360 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2361
2362 /* frame crop information */
2363 if (src_fourcc == V4L2_PIX_FMT_H264) {
2364 u32 left_right;
2365 u32 top_bottom;
2366
2367 left_right = coda_read(dev, CODA_RET_DEC_PIC_CROP_LEFT_RIGHT);
2368 top_bottom = coda_read(dev, CODA_RET_DEC_PIC_CROP_TOP_BOTTOM);
2369
2370 if (left_right == 0xffffffff && top_bottom == 0xffffffff) {
2371 /* Keep current crop information */
2372 } else {
2373 struct v4l2_rect *rect = &q_data_dst->rect;
2374
2375 rect->left = left_right >> 16 & 0xffff;
2376 rect->top = top_bottom >> 16 & 0xffff;
2377 rect->width = width - rect->left -
2378 (left_right & 0xffff);
2379 rect->height = height - rect->top -
2380 (top_bottom & 0xffff);
2381 }
2382 } else {
2383 /* no cropping */
2384 }
2385
2386 err_mb = coda_read(dev, CODA_RET_DEC_PIC_ERR_MB);
2387 if (err_mb > 0) {
2388 if (__ratelimit(&dev->mb_err_rs))
2389 coda_dbg(1, ctx, "errors in %d macroblocks\n", err_mb);
2390 v4l2_ctrl_s_ctrl(ctx->mb_err_cnt_ctrl,
2391 v4l2_ctrl_g_ctrl(ctx->mb_err_cnt_ctrl) + err_mb);
2392 }
2393
2394 if (dev->devtype->product == CODA_HX4 ||
2395 dev->devtype->product == CODA_7541) {
2396 val = coda_read(dev, CODA_RET_DEC_PIC_OPTION);
2397 if (val == 0) {
2398 /* not enough bitstream data */
2399 coda_dbg(1, ctx, "prescan failed: %d\n", val);
2400 ctx->hold = true;
2401 return;
2402 }
2403 }
2404
2405 /* Wait until the VDOA finished writing the previous display frame */
2406 if (ctx->use_vdoa &&
2407 ctx->display_idx >= 0 &&
2408 ctx->display_idx < ctx->num_internal_frames) {
2409 err_vdoa = vdoa_wait_for_completion(ctx->vdoa);
2410 }
2411
2412 ctx->frm_dis_flg = coda_read(dev,
2413 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
2414
2415 /* The previous display frame was copied out and can be overwritten */
2416 if (ctx->display_idx >= 0 &&
2417 ctx->display_idx < ctx->num_internal_frames) {
2418 ctx->frm_dis_flg &= ~(1 << ctx->display_idx);
2419 coda_write(dev, ctx->frm_dis_flg,
2420 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
2421 }
2422
2423 /*
2424 * The index of the last decoded frame, not necessarily in
2425 * display order, and the index of the next display frame.
2426 * The latter could have been decoded in a previous run.
2427 */
2428 decoded_idx = coda_read(dev, CODA_RET_DEC_PIC_CUR_IDX);
2429 display_idx = coda_read(dev, CODA_RET_DEC_PIC_FRAME_IDX);
2430
2431 if (decoded_idx == -1) {
2432 /* no frame was decoded, but we might have a display frame */
2433 if (display_idx >= 0 && display_idx < ctx->num_internal_frames)
2434 ctx->sequence_offset++;
2435 else if (ctx->display_idx < 0)
2436 ctx->hold = true;
2437 } else if (decoded_idx == -2) {
2438 if (ctx->display_idx >= 0 &&
2439 ctx->display_idx < ctx->num_internal_frames)
2440 ctx->sequence_offset++;
2441 /* no frame was decoded, we still return remaining buffers */
2442 } else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
2443 v4l2_err(&dev->v4l2_dev,
2444 "decoded frame index out of range: %d\n", decoded_idx);
2445 } else {
2446 int sequence;
2447
2448 decoded_frame = &ctx->internal_frames[decoded_idx];
2449
2450 val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM);
2451 if (ctx->sequence_offset == -1)
2452 ctx->sequence_offset = val;
2453
2454 sequence = val + ctx->first_frame_sequence
2455 - ctx->sequence_offset;
2456 spin_lock(&ctx->buffer_meta_lock);
2457 if (!list_empty(&ctx->buffer_meta_list)) {
2458 meta = list_first_entry(&ctx->buffer_meta_list,
2459 struct coda_buffer_meta, list);
2460 list_del(&meta->list);
2461 ctx->num_metas--;
2462 spin_unlock(&ctx->buffer_meta_lock);
2463 /*
2464 * Clamp counters to 16 bits for comparison, as the HW
2465 * counter rolls over at this point for h.264. This
2466 * may be different for other formats, but using 16 bits
2467 * should be enough to detect most errors and saves us
2468 * from doing different things based on the format.
2469 */
2470 if ((sequence & 0xffff) != (meta->sequence & 0xffff)) {
2471 v4l2_err(&dev->v4l2_dev,
2472 "sequence number mismatch (%d(%d) != %d)\n",
2473 sequence, ctx->sequence_offset,
2474 meta->sequence);
2475 }
2476 decoded_frame->meta = *meta;
2477 kfree(meta);
2478 } else {
2479 spin_unlock(&ctx->buffer_meta_lock);
2480 v4l2_err(&dev->v4l2_dev, "empty timestamp list!\n");
2481 memset(&decoded_frame->meta, 0,
2482 sizeof(struct coda_buffer_meta));
2483 decoded_frame->meta.sequence = sequence;
2484 decoded_frame->meta.last = false;
2485 ctx->sequence_offset++;
2486 }
2487
2488 trace_coda_dec_pic_done(ctx, &decoded_frame->meta);
2489
2490 val = coda_read(dev, CODA_RET_DEC_PIC_TYPE) & 0x7;
2491 decoded_frame->type = (val == 0) ? V4L2_BUF_FLAG_KEYFRAME :
2492 (val == 1) ? V4L2_BUF_FLAG_PFRAME :
2493 V4L2_BUF_FLAG_BFRAME;
2494
2495 decoded_frame->error = err_mb;
2496 }
2497
2498 if (display_idx == -1) {
2499 /*
2500 * no more frames to be decoded, but there could still
2501 * be rotator output to dequeue
2502 */
2503 ctx->hold = true;
2504 } else if (display_idx == -3) {
2505 /* possibly prescan failure */
2506 } else if (display_idx < 0 || display_idx >= ctx->num_internal_frames) {
2507 v4l2_err(&dev->v4l2_dev,
2508 "presentation frame index out of range: %d\n",
2509 display_idx);
2510 }
2511
2512 /* If a frame was copied out, return it */
2513 if (ctx->display_idx >= 0 &&
2514 ctx->display_idx < ctx->num_internal_frames) {
2515 struct coda_internal_frame *ready_frame;
2516
2517 ready_frame = &ctx->internal_frames[ctx->display_idx];
2518
2519 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
2520 dst_buf->sequence = ctx->osequence++;
2521
2522 dst_buf->field = V4L2_FIELD_NONE;
2523 dst_buf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME |
2524 V4L2_BUF_FLAG_PFRAME |
2525 V4L2_BUF_FLAG_BFRAME);
2526 dst_buf->flags |= ready_frame->type;
2527 meta = &ready_frame->meta;
2528 if (meta->last && !coda_reorder_enable(ctx)) {
2529 /*
2530 * If this was the last decoded frame, and reordering
2531 * is disabled, this will be the last display frame.
2532 */
2533 coda_dbg(1, ctx, "last meta, marking as last frame\n");
2534 dst_buf->flags |= V4L2_BUF_FLAG_LAST;
2535 } else if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG &&
2536 display_idx == -1) {
2537 /*
2538 * If there is no designated presentation frame anymore,
2539 * this frame has to be the last one.
2540 */
2541 coda_dbg(1, ctx,
2542 "no more frames to return, marking as last frame\n");
2543 dst_buf->flags |= V4L2_BUF_FLAG_LAST;
2544 }
2545 dst_buf->timecode = meta->timecode;
2546 dst_buf->vb2_buf.timestamp = meta->timestamp;
2547
2548 trace_coda_dec_rot_done(ctx, dst_buf, meta);
2549
2550 vb2_set_plane_payload(&dst_buf->vb2_buf, 0,
2551 q_data_dst->sizeimage);
2552
2553 if (ready_frame->error || err_vdoa)
2554 coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_ERROR);
2555 else
2556 coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_DONE);
2557
2558 if (decoded_frame) {
2559 coda_dbg(1, ctx, "job finished: decoded %c frame %u, returned %c frame %u (%u/%u)%s\n",
2560 coda_frame_type_char(decoded_frame->type),
2561 decoded_frame->meta.sequence,
2562 coda_frame_type_char(dst_buf->flags),
2563 ready_frame->meta.sequence,
2564 dst_buf->sequence, ctx->qsequence,
2565 (dst_buf->flags & V4L2_BUF_FLAG_LAST) ?
2566 " (last)" : "");
2567 } else {
2568 coda_dbg(1, ctx, "job finished: no frame decoded (%d), returned %c frame %u (%u/%u)%s\n",
2569 decoded_idx,
2570 coda_frame_type_char(dst_buf->flags),
2571 ready_frame->meta.sequence,
2572 dst_buf->sequence, ctx->qsequence,
2573 (dst_buf->flags & V4L2_BUF_FLAG_LAST) ?
2574 " (last)" : "");
2575 }
2576 } else {
2577 if (decoded_frame) {
2578 coda_dbg(1, ctx, "job finished: decoded %c frame %u, no frame returned (%d)\n",
2579 coda_frame_type_char(decoded_frame->type),
2580 decoded_frame->meta.sequence,
2581 ctx->display_idx);
2582 } else {
2583 coda_dbg(1, ctx, "job finished: no frame decoded (%d) or returned (%d)\n",
2584 decoded_idx, ctx->display_idx);
2585 }
2586 }
2587
2588 /* The rotator will copy the current display frame next time */
2589 ctx->display_idx = display_idx;
2590
2591 /*
2592 * The current decode run might have brought the bitstream fill level
2593 * below the size where we can start the next decode run. As userspace
2594 * might have filled the output queue completely and might thus be
2595 * blocked, we can't rely on the next qbuf to trigger the bitstream
2596 * refill. Check if we have data to refill the bitstream now.
2597 */
2598 mutex_lock(&ctx->bitstream_mutex);
2599 coda_fill_bitstream(ctx, NULL);
2600 mutex_unlock(&ctx->bitstream_mutex);
2601 }
2602
coda_decode_timeout(struct coda_ctx * ctx)2603 static void coda_decode_timeout(struct coda_ctx *ctx)
2604 {
2605 struct vb2_v4l2_buffer *dst_buf;
2606
2607 /*
2608 * For now this only handles the case where we would deadlock with
2609 * userspace, i.e. userspace issued DEC_CMD_STOP and waits for EOS,
2610 * but after a failed decode run we would hold the context and wait for
2611 * userspace to queue more buffers.
2612 */
2613 if (!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))
2614 return;
2615
2616 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
2617 dst_buf->sequence = ctx->qsequence - 1;
2618
2619 coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_ERROR);
2620 }
2621
2622 const struct coda_context_ops coda_bit_decode_ops = {
2623 .queue_init = coda_decoder_queue_init,
2624 .reqbufs = coda_decoder_reqbufs,
2625 .start_streaming = coda_start_decoding,
2626 .prepare_run = coda_prepare_decode,
2627 .finish_run = coda_finish_decode,
2628 .run_timeout = coda_decode_timeout,
2629 .seq_init_work = coda_dec_seq_init_work,
2630 .seq_end_work = coda_seq_end_work,
2631 .release = coda_bit_release,
2632 };
2633
coda_irq_handler(int irq,void * data)2634 irqreturn_t coda_irq_handler(int irq, void *data)
2635 {
2636 struct coda_dev *dev = data;
2637 struct coda_ctx *ctx;
2638
2639 /* read status register to attend the IRQ */
2640 coda_read(dev, CODA_REG_BIT_INT_STATUS);
2641 coda_write(dev, 0, CODA_REG_BIT_INT_REASON);
2642 coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET,
2643 CODA_REG_BIT_INT_CLEAR);
2644
2645 ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
2646 if (ctx == NULL) {
2647 v4l2_err(&dev->v4l2_dev,
2648 "Instance released before the end of transaction\n");
2649 return IRQ_HANDLED;
2650 }
2651
2652 trace_coda_bit_done(ctx);
2653
2654 if (ctx->aborting) {
2655 coda_dbg(1, ctx, "task has been aborted\n");
2656 }
2657
2658 if (coda_isbusy(ctx->dev)) {
2659 coda_dbg(1, ctx, "coda is still busy!!!!\n");
2660 return IRQ_NONE;
2661 }
2662
2663 complete(&ctx->completion);
2664
2665 return IRQ_HANDLED;
2666 }
2667