Thomas Gleixner | c942fdd | 2019-05-27 08:55:06 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2012-2016 Mentor Graphics Inc. |
| 4 | * |
| 5 | * Queued image conversion support, with tiling and rotation. |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #include <linux/interrupt.h> |
| 9 | #include <linux/dma-mapping.h> |
| 10 | #include <video/imx-ipu-image-convert.h> |
| 11 | #include "ipu-prv.h" |
| 12 | |
| 13 | /* |
| 14 | * The IC Resizer has a restriction that the output frame from the |
| 15 | * resizer must be 1024 or less in both width (pixels) and height |
| 16 | * (lines). |
| 17 | * |
| 18 | * The image converter attempts to split up a conversion when |
| 19 | * the desired output (converted) frame resolution exceeds the |
| 20 | * IC resizer limit of 1024 in either dimension. |
| 21 | * |
| 22 | * If either dimension of the output frame exceeds the limit, the |
| 23 | * dimension is split into 1, 2, or 4 equal stripes, for a maximum |
| 24 | * of 4*4 or 16 tiles. A conversion is then carried out for each |
| 25 | * tile (but taking care to pass the full frame stride length to |
| 26 | * the DMA channel's parameter memory!). IDMA double-buffering is used |
| 27 | * to convert each tile back-to-back when possible (see note below |
| 28 | * when double_buffering boolean is set). |
| 29 | * |
| 30 | * Note that the input frame must be split up into the same number |
Philipp Zabel | e46279f | 2018-09-18 11:34:19 +0200 | [diff] [blame] | 31 | * of tiles as the output frame: |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 32 | * |
Philipp Zabel | e46279f | 2018-09-18 11:34:19 +0200 | [diff] [blame] | 33 | * +---------+-----+ |
| 34 | * +-----+---+ | A | B | |
| 35 | * | A | B | | | | |
| 36 | * +-----+---+ --> +---------+-----+ |
| 37 | * | C | D | | C | D | |
| 38 | * +-----+---+ | | | |
| 39 | * +---------+-----+ |
| 40 | * |
| 41 | * Clockwise 90° rotations are handled by first rescaling into a |
| 42 | * reusable temporary tile buffer and then rotating with the 8x8 |
| 43 | * block rotator, writing to the correct destination: |
| 44 | * |
| 45 | * +-----+-----+ |
| 46 | * | | | |
| 47 | * +-----+---+ +---------+ | C | A | |
| 48 | * | A | B | | A,B, | | | | | |
| 49 | * +-----+---+ --> | C,D | | --> | | | |
| 50 | * | C | D | +---------+ +-----+-----+ |
| 51 | * +-----+---+ | D | B | |
| 52 | * | | | |
| 53 | * +-----+-----+ |
| 54 | * |
| 55 | * If the 8x8 block rotator is used, horizontal or vertical flipping |
| 56 | * is done during the rotation step, otherwise flipping is done |
| 57 | * during the scaling step. |
| 58 | * With rotation or flipping, tile order changes between input and |
| 59 | * output image. Tiles are numbered row major from top left to bottom |
| 60 | * right for both input and output image. |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 61 | */ |
| 62 | |
| 63 | #define MAX_STRIPES_W 4 |
| 64 | #define MAX_STRIPES_H 4 |
| 65 | #define MAX_TILES (MAX_STRIPES_W * MAX_STRIPES_H) |
| 66 | |
| 67 | #define MIN_W 16 |
| 68 | #define MIN_H 8 |
| 69 | #define MAX_W 4096 |
| 70 | #define MAX_H 4096 |
| 71 | |
| 72 | enum ipu_image_convert_type { |
| 73 | IMAGE_CONVERT_IN = 0, |
| 74 | IMAGE_CONVERT_OUT, |
| 75 | }; |
| 76 | |
| 77 | struct ipu_image_convert_dma_buf { |
| 78 | void *virt; |
| 79 | dma_addr_t phys; |
| 80 | unsigned long len; |
| 81 | }; |
| 82 | |
| 83 | struct ipu_image_convert_dma_chan { |
| 84 | int in; |
| 85 | int out; |
| 86 | int rot_in; |
| 87 | int rot_out; |
| 88 | int vdi_in_p; |
| 89 | int vdi_in; |
| 90 | int vdi_in_n; |
| 91 | }; |
| 92 | |
| 93 | /* dimensions of one tile */ |
| 94 | struct ipu_image_tile { |
| 95 | u32 width; |
| 96 | u32 height; |
Philipp Zabel | 571dd82 | 2018-09-18 11:34:12 +0200 | [diff] [blame] | 97 | u32 left; |
| 98 | u32 top; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 99 | /* size and strides are in bytes */ |
| 100 | u32 size; |
| 101 | u32 stride; |
| 102 | u32 rot_stride; |
| 103 | /* start Y or packed offset of this tile */ |
| 104 | u32 offset; |
| 105 | /* offset from start to tile in U plane, for planar formats */ |
| 106 | u32 u_off; |
| 107 | /* offset from start to tile in V plane, for planar formats */ |
| 108 | u32 v_off; |
| 109 | }; |
| 110 | |
| 111 | struct ipu_image_convert_image { |
| 112 | struct ipu_image base; |
| 113 | enum ipu_image_convert_type type; |
| 114 | |
| 115 | const struct ipu_image_pixfmt *fmt; |
| 116 | unsigned int stride; |
| 117 | |
| 118 | /* # of rows (horizontal stripes) if dest height is > 1024 */ |
| 119 | unsigned int num_rows; |
| 120 | /* # of columns (vertical stripes) if dest width is > 1024 */ |
| 121 | unsigned int num_cols; |
| 122 | |
| 123 | struct ipu_image_tile tile[MAX_TILES]; |
| 124 | }; |
| 125 | |
| 126 | struct ipu_image_pixfmt { |
| 127 | u32 fourcc; /* V4L2 fourcc */ |
| 128 | int bpp; /* total bpp */ |
| 129 | int uv_width_dec; /* decimation in width for U/V planes */ |
| 130 | int uv_height_dec; /* decimation in height for U/V planes */ |
| 131 | bool planar; /* planar format */ |
| 132 | bool uv_swapped; /* U and V planes are swapped */ |
| 133 | bool uv_packed; /* partial planar (U and V in same plane) */ |
| 134 | }; |
| 135 | |
| 136 | struct ipu_image_convert_ctx; |
| 137 | struct ipu_image_convert_chan; |
| 138 | struct ipu_image_convert_priv; |
| 139 | |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 140 | enum eof_irq_mask { |
| 141 | EOF_IRQ_IN = BIT(0), |
| 142 | EOF_IRQ_ROT_IN = BIT(1), |
| 143 | EOF_IRQ_OUT = BIT(2), |
| 144 | EOF_IRQ_ROT_OUT = BIT(3), |
| 145 | }; |
| 146 | |
| 147 | #define EOF_IRQ_COMPLETE (EOF_IRQ_IN | EOF_IRQ_OUT) |
| 148 | #define EOF_IRQ_ROT_COMPLETE (EOF_IRQ_IN | EOF_IRQ_OUT | \ |
| 149 | EOF_IRQ_ROT_IN | EOF_IRQ_ROT_OUT) |
| 150 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 151 | struct ipu_image_convert_ctx { |
| 152 | struct ipu_image_convert_chan *chan; |
| 153 | |
| 154 | ipu_image_convert_cb_t complete; |
| 155 | void *complete_context; |
| 156 | |
| 157 | /* Source/destination image data and rotation mode */ |
| 158 | struct ipu_image_convert_image in; |
| 159 | struct ipu_image_convert_image out; |
Steve Longerbeam | f208b26 | 2019-05-21 18:03:14 -0700 | [diff] [blame] | 160 | struct ipu_ic_csc csc; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 161 | enum ipu_rotate_mode rot_mode; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 162 | u32 downsize_coeff_h; |
| 163 | u32 downsize_coeff_v; |
| 164 | u32 image_resize_coeff_h; |
| 165 | u32 image_resize_coeff_v; |
| 166 | u32 resize_coeffs_h[MAX_STRIPES_W]; |
| 167 | u32 resize_coeffs_v[MAX_STRIPES_H]; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 168 | |
| 169 | /* intermediate buffer for rotation */ |
| 170 | struct ipu_image_convert_dma_buf rot_intermediate[2]; |
| 171 | |
| 172 | /* current buffer number for double buffering */ |
| 173 | int cur_buf_num; |
| 174 | |
| 175 | bool aborting; |
| 176 | struct completion aborted; |
| 177 | |
| 178 | /* can we use double-buffering for this conversion operation? */ |
| 179 | bool double_buffering; |
| 180 | /* num_rows * num_cols */ |
| 181 | unsigned int num_tiles; |
| 182 | /* next tile to process */ |
| 183 | unsigned int next_tile; |
| 184 | /* where to place converted tile in dest image */ |
| 185 | unsigned int out_tile_map[MAX_TILES]; |
| 186 | |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 187 | /* mask of completed EOF irqs at every tile conversion */ |
| 188 | enum eof_irq_mask eof_mask; |
| 189 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 190 | struct list_head list; |
| 191 | }; |
| 192 | |
| 193 | struct ipu_image_convert_chan { |
| 194 | struct ipu_image_convert_priv *priv; |
| 195 | |
| 196 | enum ipu_ic_task ic_task; |
| 197 | const struct ipu_image_convert_dma_chan *dma_ch; |
| 198 | |
| 199 | struct ipu_ic *ic; |
| 200 | struct ipuv3_channel *in_chan; |
| 201 | struct ipuv3_channel *out_chan; |
| 202 | struct ipuv3_channel *rotation_in_chan; |
| 203 | struct ipuv3_channel *rotation_out_chan; |
| 204 | |
| 205 | /* the IPU end-of-frame irqs */ |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 206 | int in_eof_irq; |
| 207 | int rot_in_eof_irq; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 208 | int out_eof_irq; |
| 209 | int rot_out_eof_irq; |
| 210 | |
| 211 | spinlock_t irqlock; |
| 212 | |
| 213 | /* list of convert contexts */ |
| 214 | struct list_head ctx_list; |
| 215 | /* queue of conversion runs */ |
| 216 | struct list_head pending_q; |
| 217 | /* queue of completed runs */ |
| 218 | struct list_head done_q; |
| 219 | |
| 220 | /* the current conversion run */ |
| 221 | struct ipu_image_convert_run *current_run; |
| 222 | }; |
| 223 | |
| 224 | struct ipu_image_convert_priv { |
| 225 | struct ipu_image_convert_chan chan[IC_NUM_TASKS]; |
| 226 | struct ipu_soc *ipu; |
| 227 | }; |
| 228 | |
| 229 | static const struct ipu_image_convert_dma_chan |
| 230 | image_convert_dma_chan[IC_NUM_TASKS] = { |
| 231 | [IC_TASK_VIEWFINDER] = { |
| 232 | .in = IPUV3_CHANNEL_MEM_IC_PRP_VF, |
| 233 | .out = IPUV3_CHANNEL_IC_PRP_VF_MEM, |
| 234 | .rot_in = IPUV3_CHANNEL_MEM_ROT_VF, |
| 235 | .rot_out = IPUV3_CHANNEL_ROT_VF_MEM, |
| 236 | .vdi_in_p = IPUV3_CHANNEL_MEM_VDI_PREV, |
| 237 | .vdi_in = IPUV3_CHANNEL_MEM_VDI_CUR, |
| 238 | .vdi_in_n = IPUV3_CHANNEL_MEM_VDI_NEXT, |
| 239 | }, |
| 240 | [IC_TASK_POST_PROCESSOR] = { |
| 241 | .in = IPUV3_CHANNEL_MEM_IC_PP, |
| 242 | .out = IPUV3_CHANNEL_IC_PP_MEM, |
| 243 | .rot_in = IPUV3_CHANNEL_MEM_ROT_PP, |
| 244 | .rot_out = IPUV3_CHANNEL_ROT_PP_MEM, |
| 245 | }, |
| 246 | }; |
| 247 | |
| 248 | static const struct ipu_image_pixfmt image_convert_formats[] = { |
| 249 | { |
| 250 | .fourcc = V4L2_PIX_FMT_RGB565, |
| 251 | .bpp = 16, |
| 252 | }, { |
| 253 | .fourcc = V4L2_PIX_FMT_RGB24, |
| 254 | .bpp = 24, |
| 255 | }, { |
| 256 | .fourcc = V4L2_PIX_FMT_BGR24, |
| 257 | .bpp = 24, |
| 258 | }, { |
| 259 | .fourcc = V4L2_PIX_FMT_RGB32, |
| 260 | .bpp = 32, |
| 261 | }, { |
| 262 | .fourcc = V4L2_PIX_FMT_BGR32, |
| 263 | .bpp = 32, |
| 264 | }, { |
Philipp Zabel | 5c41bb6 | 2018-08-02 10:40:33 +0200 | [diff] [blame] | 265 | .fourcc = V4L2_PIX_FMT_XRGB32, |
| 266 | .bpp = 32, |
| 267 | }, { |
| 268 | .fourcc = V4L2_PIX_FMT_XBGR32, |
| 269 | .bpp = 32, |
| 270 | }, { |
Philipp Zabel | 9b75651 | 2019-07-29 14:29:31 +0200 | [diff] [blame] | 271 | .fourcc = V4L2_PIX_FMT_BGRX32, |
| 272 | .bpp = 32, |
| 273 | }, { |
| 274 | .fourcc = V4L2_PIX_FMT_RGBX32, |
| 275 | .bpp = 32, |
| 276 | }, { |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 277 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 278 | .bpp = 16, |
| 279 | .uv_width_dec = 2, |
| 280 | .uv_height_dec = 1, |
| 281 | }, { |
| 282 | .fourcc = V4L2_PIX_FMT_UYVY, |
| 283 | .bpp = 16, |
| 284 | .uv_width_dec = 2, |
| 285 | .uv_height_dec = 1, |
| 286 | }, { |
| 287 | .fourcc = V4L2_PIX_FMT_YUV420, |
| 288 | .bpp = 12, |
| 289 | .planar = true, |
| 290 | .uv_width_dec = 2, |
| 291 | .uv_height_dec = 2, |
| 292 | }, { |
| 293 | .fourcc = V4L2_PIX_FMT_YVU420, |
| 294 | .bpp = 12, |
| 295 | .planar = true, |
| 296 | .uv_width_dec = 2, |
| 297 | .uv_height_dec = 2, |
| 298 | .uv_swapped = true, |
| 299 | }, { |
| 300 | .fourcc = V4L2_PIX_FMT_NV12, |
| 301 | .bpp = 12, |
| 302 | .planar = true, |
| 303 | .uv_width_dec = 2, |
| 304 | .uv_height_dec = 2, |
| 305 | .uv_packed = true, |
| 306 | }, { |
| 307 | .fourcc = V4L2_PIX_FMT_YUV422P, |
| 308 | .bpp = 16, |
| 309 | .planar = true, |
| 310 | .uv_width_dec = 2, |
| 311 | .uv_height_dec = 1, |
| 312 | }, { |
| 313 | .fourcc = V4L2_PIX_FMT_NV16, |
| 314 | .bpp = 16, |
| 315 | .planar = true, |
| 316 | .uv_width_dec = 2, |
| 317 | .uv_height_dec = 1, |
| 318 | .uv_packed = true, |
| 319 | }, |
| 320 | }; |
| 321 | |
| 322 | static const struct ipu_image_pixfmt *get_format(u32 fourcc) |
| 323 | { |
| 324 | const struct ipu_image_pixfmt *ret = NULL; |
| 325 | unsigned int i; |
| 326 | |
| 327 | for (i = 0; i < ARRAY_SIZE(image_convert_formats); i++) { |
| 328 | if (image_convert_formats[i].fourcc == fourcc) { |
| 329 | ret = &image_convert_formats[i]; |
| 330 | break; |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | return ret; |
| 335 | } |
| 336 | |
| 337 | static void dump_format(struct ipu_image_convert_ctx *ctx, |
| 338 | struct ipu_image_convert_image *ic_image) |
| 339 | { |
| 340 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 341 | struct ipu_image_convert_priv *priv = chan->priv; |
| 342 | |
| 343 | dev_dbg(priv->ipu->dev, |
Philipp Zabel | a3f4241 | 2018-09-18 11:34:16 +0200 | [diff] [blame] | 344 | "task %u: ctx %p: %s format: %dx%d (%dx%d tiles), %c%c%c%c\n", |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 345 | chan->ic_task, ctx, |
| 346 | ic_image->type == IMAGE_CONVERT_OUT ? "Output" : "Input", |
| 347 | ic_image->base.pix.width, ic_image->base.pix.height, |
| 348 | ic_image->num_cols, ic_image->num_rows, |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 349 | ic_image->fmt->fourcc & 0xff, |
| 350 | (ic_image->fmt->fourcc >> 8) & 0xff, |
| 351 | (ic_image->fmt->fourcc >> 16) & 0xff, |
| 352 | (ic_image->fmt->fourcc >> 24) & 0xff); |
| 353 | } |
| 354 | |
| 355 | int ipu_image_convert_enum_format(int index, u32 *fourcc) |
| 356 | { |
| 357 | const struct ipu_image_pixfmt *fmt; |
| 358 | |
| 359 | if (index >= (int)ARRAY_SIZE(image_convert_formats)) |
| 360 | return -EINVAL; |
| 361 | |
| 362 | /* Format found */ |
| 363 | fmt = &image_convert_formats[index]; |
| 364 | *fourcc = fmt->fourcc; |
| 365 | return 0; |
| 366 | } |
| 367 | EXPORT_SYMBOL_GPL(ipu_image_convert_enum_format); |
| 368 | |
| 369 | static void free_dma_buf(struct ipu_image_convert_priv *priv, |
| 370 | struct ipu_image_convert_dma_buf *buf) |
| 371 | { |
| 372 | if (buf->virt) |
| 373 | dma_free_coherent(priv->ipu->dev, |
| 374 | buf->len, buf->virt, buf->phys); |
| 375 | buf->virt = NULL; |
| 376 | buf->phys = 0; |
| 377 | } |
| 378 | |
| 379 | static int alloc_dma_buf(struct ipu_image_convert_priv *priv, |
| 380 | struct ipu_image_convert_dma_buf *buf, |
| 381 | int size) |
| 382 | { |
| 383 | buf->len = PAGE_ALIGN(size); |
| 384 | buf->virt = dma_alloc_coherent(priv->ipu->dev, buf->len, &buf->phys, |
| 385 | GFP_DMA | GFP_KERNEL); |
| 386 | if (!buf->virt) { |
| 387 | dev_err(priv->ipu->dev, "failed to alloc dma buffer\n"); |
| 388 | return -ENOMEM; |
| 389 | } |
| 390 | |
| 391 | return 0; |
| 392 | } |
| 393 | |
| 394 | static inline int num_stripes(int dim) |
| 395 | { |
Philipp Zabel | 815b02e | 2018-09-18 11:34:21 +0200 | [diff] [blame] | 396 | return (dim - 1) / 1024 + 1; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 397 | } |
| 398 | |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 399 | /* |
| 400 | * Calculate downsizing coefficients, which are the same for all tiles, |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 401 | * and initial bilinear resizing coefficients, which are used to find the |
| 402 | * best seam positions. |
| 403 | * Also determine the number of tiles necessary to guarantee that no tile |
| 404 | * is larger than 1024 pixels in either dimension at the output and between |
| 405 | * IC downsizing and main processing sections. |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 406 | */ |
| 407 | static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx, |
| 408 | struct ipu_image *in, |
| 409 | struct ipu_image *out) |
| 410 | { |
| 411 | u32 downsized_width = in->rect.width; |
| 412 | u32 downsized_height = in->rect.height; |
| 413 | u32 downsize_coeff_v = 0; |
| 414 | u32 downsize_coeff_h = 0; |
| 415 | u32 resized_width = out->rect.width; |
| 416 | u32 resized_height = out->rect.height; |
| 417 | u32 resize_coeff_h; |
| 418 | u32 resize_coeff_v; |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 419 | u32 cols; |
| 420 | u32 rows; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 421 | |
| 422 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 423 | resized_width = out->rect.height; |
| 424 | resized_height = out->rect.width; |
| 425 | } |
| 426 | |
| 427 | /* Do not let invalid input lead to an endless loop below */ |
| 428 | if (WARN_ON(resized_width == 0 || resized_height == 0)) |
| 429 | return -EINVAL; |
| 430 | |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 431 | while (downsized_width >= resized_width * 2) { |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 432 | downsized_width >>= 1; |
| 433 | downsize_coeff_h++; |
| 434 | } |
| 435 | |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 436 | while (downsized_height >= resized_height * 2) { |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 437 | downsized_height >>= 1; |
| 438 | downsize_coeff_v++; |
| 439 | } |
| 440 | |
| 441 | /* |
| 442 | * Calculate the bilinear resizing coefficients that could be used if |
| 443 | * we were converting with a single tile. The bottom right output pixel |
| 444 | * should sample as close as possible to the bottom right input pixel |
| 445 | * out of the decimator, but not overshoot it: |
| 446 | */ |
| 447 | resize_coeff_h = 8192 * (downsized_width - 1) / (resized_width - 1); |
| 448 | resize_coeff_v = 8192 * (downsized_height - 1) / (resized_height - 1); |
| 449 | |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 450 | /* |
| 451 | * Both the output of the IC downsizing section before being passed to |
| 452 | * the IC main processing section and the final output of the IC main |
| 453 | * processing section must be <= 1024 pixels in both dimensions. |
| 454 | */ |
| 455 | cols = num_stripes(max_t(u32, downsized_width, resized_width)); |
| 456 | rows = num_stripes(max_t(u32, downsized_height, resized_height)); |
| 457 | |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 458 | dev_dbg(ctx->chan->priv->ipu->dev, |
| 459 | "%s: hscale: >>%u, *8192/%u vscale: >>%u, *8192/%u, %ux%u tiles\n", |
| 460 | __func__, downsize_coeff_h, resize_coeff_h, downsize_coeff_v, |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 461 | resize_coeff_v, cols, rows); |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 462 | |
| 463 | if (downsize_coeff_h > 2 || downsize_coeff_v > 2 || |
| 464 | resize_coeff_h > 0x3fff || resize_coeff_v > 0x3fff) |
| 465 | return -EINVAL; |
| 466 | |
| 467 | ctx->downsize_coeff_h = downsize_coeff_h; |
| 468 | ctx->downsize_coeff_v = downsize_coeff_v; |
| 469 | ctx->image_resize_coeff_h = resize_coeff_h; |
| 470 | ctx->image_resize_coeff_v = resize_coeff_v; |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 471 | ctx->in.num_cols = cols; |
| 472 | ctx->in.num_rows = rows; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 473 | |
| 474 | return 0; |
| 475 | } |
| 476 | |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 477 | #define round_closest(x, y) round_down((x) + (y)/2, (y)) |
| 478 | |
| 479 | /* |
Philipp Zabel | ca84b1b | 2019-08-13 18:49:26 +0200 | [diff] [blame] | 480 | * Find the best aligned seam position for the given column / row index. |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 481 | * Rotation and image offsets are out of scope. |
| 482 | * |
Philipp Zabel | ca84b1b | 2019-08-13 18:49:26 +0200 | [diff] [blame] | 483 | * @index: column / row index, used to calculate valid interval |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 484 | * @in_edge: input right / bottom edge |
| 485 | * @out_edge: output right / bottom edge |
| 486 | * @in_align: input alignment, either horizontal 8-byte line start address |
| 487 | * alignment, or pixel alignment due to image format |
| 488 | * @out_align: output alignment, either horizontal 8-byte line start address |
| 489 | * alignment, or pixel alignment due to image format or rotator |
| 490 | * block size |
| 491 | * @in_burst: horizontal input burst size in case of horizontal flip |
| 492 | * @out_burst: horizontal output burst size or rotator block size |
| 493 | * @downsize_coeff: downsizing section coefficient |
| 494 | * @resize_coeff: main processing section resizing coefficient |
| 495 | * @_in_seam: aligned input seam position return value |
| 496 | * @_out_seam: aligned output seam position return value |
| 497 | */ |
| 498 | static void find_best_seam(struct ipu_image_convert_ctx *ctx, |
Philipp Zabel | ca84b1b | 2019-08-13 18:49:26 +0200 | [diff] [blame] | 499 | unsigned int index, |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 500 | unsigned int in_edge, |
| 501 | unsigned int out_edge, |
| 502 | unsigned int in_align, |
| 503 | unsigned int out_align, |
| 504 | unsigned int in_burst, |
| 505 | unsigned int out_burst, |
| 506 | unsigned int downsize_coeff, |
| 507 | unsigned int resize_coeff, |
| 508 | u32 *_in_seam, |
| 509 | u32 *_out_seam) |
| 510 | { |
| 511 | struct device *dev = ctx->chan->priv->ipu->dev; |
| 512 | unsigned int out_pos; |
| 513 | /* Input / output seam position candidates */ |
| 514 | unsigned int out_seam = 0; |
| 515 | unsigned int in_seam = 0; |
| 516 | unsigned int min_diff = UINT_MAX; |
Philipp Zabel | ca84b1b | 2019-08-13 18:49:26 +0200 | [diff] [blame] | 517 | unsigned int out_start; |
| 518 | unsigned int out_end; |
Philipp Zabel | 2e67a55 | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 519 | unsigned int in_start; |
| 520 | unsigned int in_end; |
Philipp Zabel | ca84b1b | 2019-08-13 18:49:26 +0200 | [diff] [blame] | 521 | |
| 522 | /* Start within 1024 pixels of the right / bottom edge */ |
Philipp Zabel | 82c3e94 | 2019-08-13 14:30:25 +0200 | [diff] [blame] | 523 | out_start = max_t(int, index * out_align, out_edge - 1024); |
Philipp Zabel | ca84b1b | 2019-08-13 18:49:26 +0200 | [diff] [blame] | 524 | /* End before having to add more columns to the left / rows above */ |
Philipp Zabel | 82c3e94 | 2019-08-13 14:30:25 +0200 | [diff] [blame] | 525 | out_end = min_t(unsigned int, out_edge, index * 1024 + 1); |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 526 | |
| 527 | /* |
Philipp Zabel | 2e67a55 | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 528 | * Limit input seam position to make sure that the downsized input tile |
| 529 | * to the right or bottom does not exceed 1024 pixels. |
| 530 | */ |
| 531 | in_start = max_t(int, index * in_align, |
| 532 | in_edge - (1024 << downsize_coeff)); |
| 533 | in_end = min_t(unsigned int, in_edge, |
| 534 | index * (1024 << downsize_coeff) + 1); |
| 535 | |
| 536 | /* |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 537 | * Output tiles must start at a multiple of 8 bytes horizontally and |
| 538 | * possibly at an even line horizontally depending on the pixel format. |
| 539 | * Only consider output aligned positions for the seam. |
| 540 | */ |
| 541 | out_start = round_up(out_start, out_align); |
| 542 | for (out_pos = out_start; out_pos < out_end; out_pos += out_align) { |
| 543 | unsigned int in_pos; |
| 544 | unsigned int in_pos_aligned; |
Philipp Zabel | 2e67a55 | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 545 | unsigned int in_pos_rounded; |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 546 | unsigned int abs_diff; |
| 547 | |
| 548 | /* |
| 549 | * Tiles in the right row / bottom column may not be allowed to |
| 550 | * overshoot horizontally / vertically. out_burst may be the |
| 551 | * actual DMA burst size, or the rotator block size. |
| 552 | */ |
| 553 | if ((out_burst > 1) && (out_edge - out_pos) % out_burst) |
| 554 | continue; |
| 555 | |
| 556 | /* |
| 557 | * Input sample position, corresponding to out_pos, 19.13 fixed |
| 558 | * point. |
| 559 | */ |
| 560 | in_pos = (out_pos * resize_coeff) << downsize_coeff; |
| 561 | /* |
| 562 | * The closest input sample position that we could actually |
| 563 | * start the input tile at, 19.13 fixed point. |
| 564 | */ |
| 565 | in_pos_aligned = round_closest(in_pos, 8192U * in_align); |
Philipp Zabel | 2e67a55 | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 566 | /* Convert 19.13 fixed point to integer */ |
| 567 | in_pos_rounded = in_pos_aligned / 8192U; |
| 568 | |
| 569 | if (in_pos_rounded < in_start) |
| 570 | continue; |
| 571 | if (in_pos_rounded >= in_end) |
| 572 | break; |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 573 | |
| 574 | if ((in_burst > 1) && |
Philipp Zabel | 2e67a55 | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 575 | (in_edge - in_pos_rounded) % in_burst) |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 576 | continue; |
| 577 | |
| 578 | if (in_pos < in_pos_aligned) |
| 579 | abs_diff = in_pos_aligned - in_pos; |
| 580 | else |
| 581 | abs_diff = in_pos - in_pos_aligned; |
| 582 | |
| 583 | if (abs_diff < min_diff) { |
Philipp Zabel | 2e67a55 | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 584 | in_seam = in_pos_rounded; |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 585 | out_seam = out_pos; |
| 586 | min_diff = abs_diff; |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | *_out_seam = out_seam; |
Philipp Zabel | 2e67a55 | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 591 | *_in_seam = in_seam; |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 592 | |
Philipp Zabel | 2e67a55 | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 593 | dev_dbg(dev, "%s: out_seam %u(%u) in [%u, %u], in_seam %u(%u) in [%u, %u] diff %u.%03u\n", |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 594 | __func__, out_seam, out_align, out_start, out_end, |
Philipp Zabel | 2e67a55 | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 595 | in_seam, in_align, in_start, in_end, min_diff / 8192, |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 596 | DIV_ROUND_CLOSEST(min_diff % 8192 * 1000, 8192)); |
| 597 | } |
| 598 | |
| 599 | /* |
| 600 | * Tile left edges are required to be aligned to multiples of 8 bytes |
| 601 | * by the IDMAC. |
| 602 | */ |
| 603 | static inline u32 tile_left_align(const struct ipu_image_pixfmt *fmt) |
| 604 | { |
| 605 | if (fmt->planar) |
| 606 | return fmt->uv_packed ? 8 : 8 * fmt->uv_width_dec; |
| 607 | else |
| 608 | return fmt->bpp == 32 ? 2 : fmt->bpp == 16 ? 4 : 8; |
| 609 | } |
| 610 | |
| 611 | /* |
| 612 | * Tile top edge alignment is only limited by chroma subsampling. |
| 613 | */ |
| 614 | static inline u32 tile_top_align(const struct ipu_image_pixfmt *fmt) |
| 615 | { |
| 616 | return fmt->uv_height_dec > 1 ? 2 : 1; |
| 617 | } |
| 618 | |
Philipp Zabel | ff652fc | 2018-09-18 11:34:17 +0200 | [diff] [blame] | 619 | static inline u32 tile_width_align(enum ipu_image_convert_type type, |
| 620 | const struct ipu_image_pixfmt *fmt, |
| 621 | enum ipu_rotate_mode rot_mode) |
Philipp Zabel | 76e77bf | 2018-09-18 11:34:14 +0200 | [diff] [blame] | 622 | { |
Philipp Zabel | ff652fc | 2018-09-18 11:34:17 +0200 | [diff] [blame] | 623 | if (type == IMAGE_CONVERT_IN) { |
| 624 | /* |
| 625 | * The IC burst reads 8 pixels at a time. Reading beyond the |
| 626 | * end of the line is usually acceptable. Those pixels are |
| 627 | * ignored, unless the IC has to write the scaled line in |
| 628 | * reverse. |
| 629 | */ |
| 630 | return (!ipu_rot_mode_is_irt(rot_mode) && |
| 631 | (rot_mode & IPU_ROT_BIT_HFLIP)) ? 8 : 2; |
| 632 | } |
| 633 | |
| 634 | /* |
| 635 | * Align to 16x16 pixel blocks for planar 4:2:0 chroma subsampled |
| 636 | * formats to guarantee 8-byte aligned line start addresses in the |
| 637 | * chroma planes when IRT is used. Align to 8x8 pixel IRT block size |
| 638 | * for all other formats. |
| 639 | */ |
| 640 | return (ipu_rot_mode_is_irt(rot_mode) && |
| 641 | fmt->planar && !fmt->uv_packed) ? |
| 642 | 8 * fmt->uv_width_dec : 8; |
Philipp Zabel | 76e77bf | 2018-09-18 11:34:14 +0200 | [diff] [blame] | 643 | } |
| 644 | |
Philipp Zabel | 76e77bf | 2018-09-18 11:34:14 +0200 | [diff] [blame] | 645 | static inline u32 tile_height_align(enum ipu_image_convert_type type, |
Philipp Zabel | ff652fc | 2018-09-18 11:34:17 +0200 | [diff] [blame] | 646 | const struct ipu_image_pixfmt *fmt, |
Philipp Zabel | 76e77bf | 2018-09-18 11:34:14 +0200 | [diff] [blame] | 647 | enum ipu_rotate_mode rot_mode) |
| 648 | { |
Philipp Zabel | ff652fc | 2018-09-18 11:34:17 +0200 | [diff] [blame] | 649 | if (type == IMAGE_CONVERT_IN || !ipu_rot_mode_is_irt(rot_mode)) |
| 650 | return 2; |
| 651 | |
| 652 | /* |
| 653 | * Align to 16x16 pixel blocks for planar 4:2:0 chroma subsampled |
| 654 | * formats to guarantee 8-byte aligned line start addresses in the |
| 655 | * chroma planes when IRT is used. Align to 8x8 pixel IRT block size |
| 656 | * for all other formats. |
| 657 | */ |
| 658 | return (fmt->planar && !fmt->uv_packed) ? 8 * fmt->uv_width_dec : 8; |
Philipp Zabel | 76e77bf | 2018-09-18 11:34:14 +0200 | [diff] [blame] | 659 | } |
| 660 | |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 661 | /* |
| 662 | * Fill in left position and width and for all tiles in an input column, and |
| 663 | * for all corresponding output tiles. If the 90° rotator is used, the output |
| 664 | * tiles are in a row, and output tile top position and height are set. |
| 665 | */ |
| 666 | static void fill_tile_column(struct ipu_image_convert_ctx *ctx, |
| 667 | unsigned int col, |
| 668 | struct ipu_image_convert_image *in, |
| 669 | unsigned int in_left, unsigned int in_width, |
| 670 | struct ipu_image_convert_image *out, |
| 671 | unsigned int out_left, unsigned int out_width) |
| 672 | { |
| 673 | unsigned int row, tile_idx; |
| 674 | struct ipu_image_tile *in_tile, *out_tile; |
| 675 | |
| 676 | for (row = 0; row < in->num_rows; row++) { |
| 677 | tile_idx = in->num_cols * row + col; |
| 678 | in_tile = &in->tile[tile_idx]; |
| 679 | out_tile = &out->tile[ctx->out_tile_map[tile_idx]]; |
| 680 | |
| 681 | in_tile->left = in_left; |
| 682 | in_tile->width = in_width; |
| 683 | |
| 684 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 685 | out_tile->top = out_left; |
| 686 | out_tile->height = out_width; |
| 687 | } else { |
| 688 | out_tile->left = out_left; |
| 689 | out_tile->width = out_width; |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | /* |
| 695 | * Fill in top position and height and for all tiles in an input row, and |
| 696 | * for all corresponding output tiles. If the 90° rotator is used, the output |
| 697 | * tiles are in a column, and output tile left position and width are set. |
| 698 | */ |
| 699 | static void fill_tile_row(struct ipu_image_convert_ctx *ctx, unsigned int row, |
| 700 | struct ipu_image_convert_image *in, |
| 701 | unsigned int in_top, unsigned int in_height, |
| 702 | struct ipu_image_convert_image *out, |
| 703 | unsigned int out_top, unsigned int out_height) |
| 704 | { |
| 705 | unsigned int col, tile_idx; |
| 706 | struct ipu_image_tile *in_tile, *out_tile; |
| 707 | |
| 708 | for (col = 0; col < in->num_cols; col++) { |
| 709 | tile_idx = in->num_cols * row + col; |
| 710 | in_tile = &in->tile[tile_idx]; |
| 711 | out_tile = &out->tile[ctx->out_tile_map[tile_idx]]; |
| 712 | |
| 713 | in_tile->top = in_top; |
| 714 | in_tile->height = in_height; |
| 715 | |
| 716 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 717 | out_tile->left = out_top; |
| 718 | out_tile->width = out_height; |
| 719 | } else { |
| 720 | out_tile->top = out_top; |
| 721 | out_tile->height = out_height; |
| 722 | } |
| 723 | } |
| 724 | } |
| 725 | |
| 726 | /* |
| 727 | * Find the best horizontal and vertical seam positions to split into tiles. |
| 728 | * Minimize the fractional part of the input sampling position for the |
| 729 | * top / left pixels of each tile. |
| 730 | */ |
| 731 | static void find_seams(struct ipu_image_convert_ctx *ctx, |
| 732 | struct ipu_image_convert_image *in, |
| 733 | struct ipu_image_convert_image *out) |
| 734 | { |
| 735 | struct device *dev = ctx->chan->priv->ipu->dev; |
| 736 | unsigned int resized_width = out->base.rect.width; |
| 737 | unsigned int resized_height = out->base.rect.height; |
| 738 | unsigned int col; |
| 739 | unsigned int row; |
| 740 | unsigned int in_left_align = tile_left_align(in->fmt); |
| 741 | unsigned int in_top_align = tile_top_align(in->fmt); |
| 742 | unsigned int out_left_align = tile_left_align(out->fmt); |
| 743 | unsigned int out_top_align = tile_top_align(out->fmt); |
Philipp Zabel | ff652fc | 2018-09-18 11:34:17 +0200 | [diff] [blame] | 744 | unsigned int out_width_align = tile_width_align(out->type, out->fmt, |
| 745 | ctx->rot_mode); |
| 746 | unsigned int out_height_align = tile_height_align(out->type, out->fmt, |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 747 | ctx->rot_mode); |
| 748 | unsigned int in_right = in->base.rect.width; |
| 749 | unsigned int in_bottom = in->base.rect.height; |
| 750 | unsigned int out_right = out->base.rect.width; |
| 751 | unsigned int out_bottom = out->base.rect.height; |
| 752 | unsigned int flipped_out_left; |
| 753 | unsigned int flipped_out_top; |
| 754 | |
| 755 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 756 | /* Switch width/height and align top left to IRT block size */ |
| 757 | resized_width = out->base.rect.height; |
| 758 | resized_height = out->base.rect.width; |
| 759 | out_left_align = out_height_align; |
| 760 | out_top_align = out_width_align; |
| 761 | out_width_align = out_left_align; |
| 762 | out_height_align = out_top_align; |
| 763 | out_right = out->base.rect.height; |
| 764 | out_bottom = out->base.rect.width; |
| 765 | } |
| 766 | |
| 767 | for (col = in->num_cols - 1; col > 0; col--) { |
| 768 | bool allow_in_overshoot = ipu_rot_mode_is_irt(ctx->rot_mode) || |
| 769 | !(ctx->rot_mode & IPU_ROT_BIT_HFLIP); |
| 770 | bool allow_out_overshoot = (col < in->num_cols - 1) && |
| 771 | !(ctx->rot_mode & IPU_ROT_BIT_HFLIP); |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 772 | unsigned int in_left; |
| 773 | unsigned int out_left; |
| 774 | |
| 775 | /* |
| 776 | * Align input width to burst length if the scaling step flips |
| 777 | * horizontally. |
| 778 | */ |
| 779 | |
Philipp Zabel | ca84b1b | 2019-08-13 18:49:26 +0200 | [diff] [blame] | 780 | find_best_seam(ctx, col, |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 781 | in_right, out_right, |
| 782 | in_left_align, out_left_align, |
| 783 | allow_in_overshoot ? 1 : 8 /* burst length */, |
| 784 | allow_out_overshoot ? 1 : out_width_align, |
| 785 | ctx->downsize_coeff_h, ctx->image_resize_coeff_h, |
| 786 | &in_left, &out_left); |
| 787 | |
| 788 | if (ctx->rot_mode & IPU_ROT_BIT_HFLIP) |
| 789 | flipped_out_left = resized_width - out_right; |
| 790 | else |
| 791 | flipped_out_left = out_left; |
| 792 | |
| 793 | fill_tile_column(ctx, col, in, in_left, in_right - in_left, |
| 794 | out, flipped_out_left, out_right - out_left); |
| 795 | |
| 796 | dev_dbg(dev, "%s: col %u: %u, %u -> %u, %u\n", __func__, col, |
| 797 | in_left, in_right - in_left, |
| 798 | flipped_out_left, out_right - out_left); |
| 799 | |
| 800 | in_right = in_left; |
| 801 | out_right = out_left; |
| 802 | } |
| 803 | |
| 804 | flipped_out_left = (ctx->rot_mode & IPU_ROT_BIT_HFLIP) ? |
| 805 | resized_width - out_right : 0; |
| 806 | |
| 807 | fill_tile_column(ctx, 0, in, 0, in_right, |
| 808 | out, flipped_out_left, out_right); |
| 809 | |
| 810 | dev_dbg(dev, "%s: col 0: 0, %u -> %u, %u\n", __func__, |
| 811 | in_right, flipped_out_left, out_right); |
| 812 | |
| 813 | for (row = in->num_rows - 1; row > 0; row--) { |
| 814 | bool allow_overshoot = row < in->num_rows - 1; |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 815 | unsigned int in_top; |
| 816 | unsigned int out_top; |
| 817 | |
Philipp Zabel | ca84b1b | 2019-08-13 18:49:26 +0200 | [diff] [blame] | 818 | find_best_seam(ctx, row, |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 819 | in_bottom, out_bottom, |
| 820 | in_top_align, out_top_align, |
| 821 | 1, allow_overshoot ? 1 : out_height_align, |
| 822 | ctx->downsize_coeff_v, ctx->image_resize_coeff_v, |
| 823 | &in_top, &out_top); |
| 824 | |
| 825 | if ((ctx->rot_mode & IPU_ROT_BIT_VFLIP) ^ |
| 826 | ipu_rot_mode_is_irt(ctx->rot_mode)) |
| 827 | flipped_out_top = resized_height - out_bottom; |
| 828 | else |
| 829 | flipped_out_top = out_top; |
| 830 | |
| 831 | fill_tile_row(ctx, row, in, in_top, in_bottom - in_top, |
| 832 | out, flipped_out_top, out_bottom - out_top); |
| 833 | |
| 834 | dev_dbg(dev, "%s: row %u: %u, %u -> %u, %u\n", __func__, row, |
| 835 | in_top, in_bottom - in_top, |
| 836 | flipped_out_top, out_bottom - out_top); |
| 837 | |
| 838 | in_bottom = in_top; |
| 839 | out_bottom = out_top; |
| 840 | } |
| 841 | |
| 842 | if ((ctx->rot_mode & IPU_ROT_BIT_VFLIP) ^ |
| 843 | ipu_rot_mode_is_irt(ctx->rot_mode)) |
| 844 | flipped_out_top = resized_height - out_bottom; |
| 845 | else |
| 846 | flipped_out_top = 0; |
| 847 | |
| 848 | fill_tile_row(ctx, 0, in, 0, in_bottom, |
| 849 | out, flipped_out_top, out_bottom); |
| 850 | |
| 851 | dev_dbg(dev, "%s: row 0: 0, %u -> %u, %u\n", __func__, |
| 852 | in_bottom, flipped_out_top, out_bottom); |
| 853 | } |
| 854 | |
Philipp Zabel | 5fb8b65 | 2019-08-13 14:39:50 +0200 | [diff] [blame] | 855 | static int calc_tile_dimensions(struct ipu_image_convert_ctx *ctx, |
| 856 | struct ipu_image_convert_image *image) |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 857 | { |
Philipp Zabel | a3f4241 | 2018-09-18 11:34:16 +0200 | [diff] [blame] | 858 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 859 | struct ipu_image_convert_priv *priv = chan->priv; |
Philipp Zabel | 5fb8b65 | 2019-08-13 14:39:50 +0200 | [diff] [blame] | 860 | unsigned int max_width = 1024; |
| 861 | unsigned int max_height = 1024; |
Philipp Zabel | 571dd82 | 2018-09-18 11:34:12 +0200 | [diff] [blame] | 862 | unsigned int i; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 863 | |
Philipp Zabel | 5fb8b65 | 2019-08-13 14:39:50 +0200 | [diff] [blame] | 864 | if (image->type == IMAGE_CONVERT_IN) { |
| 865 | /* Up to 4096x4096 input tile size */ |
| 866 | max_width <<= ctx->downsize_coeff_h; |
| 867 | max_height <<= ctx->downsize_coeff_v; |
| 868 | } |
| 869 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 870 | for (i = 0; i < ctx->num_tiles; i++) { |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 871 | struct ipu_image_tile *tile; |
Philipp Zabel | 571dd82 | 2018-09-18 11:34:12 +0200 | [diff] [blame] | 872 | const unsigned int row = i / image->num_cols; |
| 873 | const unsigned int col = i % image->num_cols; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 874 | |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 875 | if (image->type == IMAGE_CONVERT_OUT) |
| 876 | tile = &image->tile[ctx->out_tile_map[i]]; |
| 877 | else |
| 878 | tile = &image->tile[i]; |
| 879 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 880 | tile->size = ((tile->height * image->fmt->bpp) >> 3) * |
| 881 | tile->width; |
| 882 | |
| 883 | if (image->fmt->planar) { |
| 884 | tile->stride = tile->width; |
| 885 | tile->rot_stride = tile->height; |
| 886 | } else { |
| 887 | tile->stride = |
| 888 | (image->fmt->bpp * tile->width) >> 3; |
| 889 | tile->rot_stride = |
| 890 | (image->fmt->bpp * tile->height) >> 3; |
| 891 | } |
Philipp Zabel | a3f4241 | 2018-09-18 11:34:16 +0200 | [diff] [blame] | 892 | |
| 893 | dev_dbg(priv->ipu->dev, |
| 894 | "task %u: ctx %p: %s@[%u,%u]: %ux%u@%u,%u\n", |
| 895 | chan->ic_task, ctx, |
| 896 | image->type == IMAGE_CONVERT_IN ? "Input" : "Output", |
| 897 | row, col, |
| 898 | tile->width, tile->height, tile->left, tile->top); |
Philipp Zabel | 5fb8b65 | 2019-08-13 14:39:50 +0200 | [diff] [blame] | 899 | |
| 900 | if (!tile->width || tile->width > max_width || |
| 901 | !tile->height || tile->height > max_height) { |
| 902 | dev_err(priv->ipu->dev, "invalid %s tile size: %ux%u\n", |
| 903 | image->type == IMAGE_CONVERT_IN ? "input" : |
| 904 | "output", tile->width, tile->height); |
| 905 | return -EINVAL; |
| 906 | } |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 907 | } |
Philipp Zabel | 5fb8b65 | 2019-08-13 14:39:50 +0200 | [diff] [blame] | 908 | |
| 909 | return 0; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 910 | } |
| 911 | |
| 912 | /* |
| 913 | * Use the rotation transformation to find the tile coordinates |
| 914 | * (row, col) of a tile in the destination frame that corresponds |
| 915 | * to the given tile coordinates of a source frame. The destination |
| 916 | * coordinate is then converted to a tile index. |
| 917 | */ |
| 918 | static int transform_tile_index(struct ipu_image_convert_ctx *ctx, |
| 919 | int src_row, int src_col) |
| 920 | { |
| 921 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 922 | struct ipu_image_convert_priv *priv = chan->priv; |
| 923 | struct ipu_image_convert_image *s_image = &ctx->in; |
| 924 | struct ipu_image_convert_image *d_image = &ctx->out; |
| 925 | int dst_row, dst_col; |
| 926 | |
| 927 | /* with no rotation it's a 1:1 mapping */ |
| 928 | if (ctx->rot_mode == IPU_ROTATE_NONE) |
| 929 | return src_row * s_image->num_cols + src_col; |
| 930 | |
| 931 | /* |
| 932 | * before doing the transform, first we have to translate |
| 933 | * source row,col for an origin in the center of s_image |
| 934 | */ |
| 935 | src_row = src_row * 2 - (s_image->num_rows - 1); |
| 936 | src_col = src_col * 2 - (s_image->num_cols - 1); |
| 937 | |
| 938 | /* do the rotation transform */ |
| 939 | if (ctx->rot_mode & IPU_ROT_BIT_90) { |
| 940 | dst_col = -src_row; |
| 941 | dst_row = src_col; |
| 942 | } else { |
| 943 | dst_col = src_col; |
| 944 | dst_row = src_row; |
| 945 | } |
| 946 | |
| 947 | /* apply flip */ |
| 948 | if (ctx->rot_mode & IPU_ROT_BIT_HFLIP) |
| 949 | dst_col = -dst_col; |
| 950 | if (ctx->rot_mode & IPU_ROT_BIT_VFLIP) |
| 951 | dst_row = -dst_row; |
| 952 | |
| 953 | dev_dbg(priv->ipu->dev, "task %u: ctx %p: [%d,%d] --> [%d,%d]\n", |
| 954 | chan->ic_task, ctx, src_col, src_row, dst_col, dst_row); |
| 955 | |
| 956 | /* |
| 957 | * finally translate dest row,col using an origin in upper |
| 958 | * left of d_image |
| 959 | */ |
| 960 | dst_row += d_image->num_rows - 1; |
| 961 | dst_col += d_image->num_cols - 1; |
| 962 | dst_row /= 2; |
| 963 | dst_col /= 2; |
| 964 | |
| 965 | return dst_row * d_image->num_cols + dst_col; |
| 966 | } |
| 967 | |
| 968 | /* |
| 969 | * Fill the out_tile_map[] with transformed destination tile indeces. |
| 970 | */ |
| 971 | static void calc_out_tile_map(struct ipu_image_convert_ctx *ctx) |
| 972 | { |
| 973 | struct ipu_image_convert_image *s_image = &ctx->in; |
| 974 | unsigned int row, col, tile = 0; |
| 975 | |
| 976 | for (row = 0; row < s_image->num_rows; row++) { |
| 977 | for (col = 0; col < s_image->num_cols; col++) { |
| 978 | ctx->out_tile_map[tile] = |
| 979 | transform_tile_index(ctx, row, col); |
| 980 | tile++; |
| 981 | } |
| 982 | } |
| 983 | } |
| 984 | |
Steve Longerbeam | c4e4565 | 2018-09-21 11:46:39 -0700 | [diff] [blame] | 985 | static int calc_tile_offsets_planar(struct ipu_image_convert_ctx *ctx, |
| 986 | struct ipu_image_convert_image *image) |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 987 | { |
| 988 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 989 | struct ipu_image_convert_priv *priv = chan->priv; |
| 990 | const struct ipu_image_pixfmt *fmt = image->fmt; |
| 991 | unsigned int row, col, tile = 0; |
Philipp Zabel | 571dd82 | 2018-09-18 11:34:12 +0200 | [diff] [blame] | 992 | u32 H, top, y_stride, uv_stride; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 993 | u32 uv_row_off, uv_col_off, uv_off, u_off, v_off, tmp; |
| 994 | u32 y_row_off, y_col_off, y_off; |
| 995 | u32 y_size, uv_size; |
| 996 | |
| 997 | /* setup some convenience vars */ |
| 998 | H = image->base.pix.height; |
| 999 | |
| 1000 | y_stride = image->stride; |
| 1001 | uv_stride = y_stride / fmt->uv_width_dec; |
| 1002 | if (fmt->uv_packed) |
| 1003 | uv_stride *= 2; |
| 1004 | |
| 1005 | y_size = H * y_stride; |
| 1006 | uv_size = y_size / (fmt->uv_width_dec * fmt->uv_height_dec); |
| 1007 | |
| 1008 | for (row = 0; row < image->num_rows; row++) { |
Philipp Zabel | 571dd82 | 2018-09-18 11:34:12 +0200 | [diff] [blame] | 1009 | top = image->tile[tile].top; |
| 1010 | y_row_off = top * y_stride; |
| 1011 | uv_row_off = (top * uv_stride) / fmt->uv_height_dec; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1012 | |
| 1013 | for (col = 0; col < image->num_cols; col++) { |
Philipp Zabel | 571dd82 | 2018-09-18 11:34:12 +0200 | [diff] [blame] | 1014 | y_col_off = image->tile[tile].left; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1015 | uv_col_off = y_col_off / fmt->uv_width_dec; |
| 1016 | if (fmt->uv_packed) |
| 1017 | uv_col_off *= 2; |
| 1018 | |
| 1019 | y_off = y_row_off + y_col_off; |
| 1020 | uv_off = uv_row_off + uv_col_off; |
| 1021 | |
| 1022 | u_off = y_size - y_off + uv_off; |
| 1023 | v_off = (fmt->uv_packed) ? 0 : u_off + uv_size; |
| 1024 | if (fmt->uv_swapped) { |
| 1025 | tmp = u_off; |
| 1026 | u_off = v_off; |
| 1027 | v_off = tmp; |
| 1028 | } |
| 1029 | |
| 1030 | image->tile[tile].offset = y_off; |
| 1031 | image->tile[tile].u_off = u_off; |
| 1032 | image->tile[tile++].v_off = v_off; |
| 1033 | |
Steve Longerbeam | c4e4565 | 2018-09-21 11:46:39 -0700 | [diff] [blame] | 1034 | if ((y_off & 0x7) || (u_off & 0x7) || (v_off & 0x7)) { |
| 1035 | dev_err(priv->ipu->dev, |
| 1036 | "task %u: ctx %p: %s@[%d,%d]: " |
| 1037 | "y_off %08x, u_off %08x, v_off %08x\n", |
| 1038 | chan->ic_task, ctx, |
| 1039 | image->type == IMAGE_CONVERT_IN ? |
| 1040 | "Input" : "Output", row, col, |
| 1041 | y_off, u_off, v_off); |
| 1042 | return -EINVAL; |
| 1043 | } |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1044 | } |
| 1045 | } |
Steve Longerbeam | c4e4565 | 2018-09-21 11:46:39 -0700 | [diff] [blame] | 1046 | |
| 1047 | return 0; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1048 | } |
| 1049 | |
Steve Longerbeam | c4e4565 | 2018-09-21 11:46:39 -0700 | [diff] [blame] | 1050 | static int calc_tile_offsets_packed(struct ipu_image_convert_ctx *ctx, |
| 1051 | struct ipu_image_convert_image *image) |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1052 | { |
| 1053 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 1054 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1055 | const struct ipu_image_pixfmt *fmt = image->fmt; |
| 1056 | unsigned int row, col, tile = 0; |
Philipp Zabel | 571dd82 | 2018-09-18 11:34:12 +0200 | [diff] [blame] | 1057 | u32 bpp, stride, offset; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1058 | u32 row_off, col_off; |
| 1059 | |
| 1060 | /* setup some convenience vars */ |
| 1061 | stride = image->stride; |
| 1062 | bpp = fmt->bpp; |
| 1063 | |
| 1064 | for (row = 0; row < image->num_rows; row++) { |
Philipp Zabel | 571dd82 | 2018-09-18 11:34:12 +0200 | [diff] [blame] | 1065 | row_off = image->tile[tile].top * stride; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1066 | |
| 1067 | for (col = 0; col < image->num_cols; col++) { |
Philipp Zabel | 571dd82 | 2018-09-18 11:34:12 +0200 | [diff] [blame] | 1068 | col_off = (image->tile[tile].left * bpp) >> 3; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1069 | |
Steve Longerbeam | c4e4565 | 2018-09-21 11:46:39 -0700 | [diff] [blame] | 1070 | offset = row_off + col_off; |
| 1071 | |
| 1072 | image->tile[tile].offset = offset; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1073 | image->tile[tile].u_off = 0; |
| 1074 | image->tile[tile++].v_off = 0; |
| 1075 | |
Steve Longerbeam | c4e4565 | 2018-09-21 11:46:39 -0700 | [diff] [blame] | 1076 | if (offset & 0x7) { |
| 1077 | dev_err(priv->ipu->dev, |
| 1078 | "task %u: ctx %p: %s@[%d,%d]: " |
| 1079 | "phys %08x\n", |
| 1080 | chan->ic_task, ctx, |
| 1081 | image->type == IMAGE_CONVERT_IN ? |
| 1082 | "Input" : "Output", row, col, |
| 1083 | row_off + col_off); |
| 1084 | return -EINVAL; |
| 1085 | } |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1086 | } |
| 1087 | } |
Steve Longerbeam | c4e4565 | 2018-09-21 11:46:39 -0700 | [diff] [blame] | 1088 | |
| 1089 | return 0; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1090 | } |
| 1091 | |
Steve Longerbeam | c4e4565 | 2018-09-21 11:46:39 -0700 | [diff] [blame] | 1092 | static int calc_tile_offsets(struct ipu_image_convert_ctx *ctx, |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1093 | struct ipu_image_convert_image *image) |
| 1094 | { |
| 1095 | if (image->fmt->planar) |
Steve Longerbeam | c4e4565 | 2018-09-21 11:46:39 -0700 | [diff] [blame] | 1096 | return calc_tile_offsets_planar(ctx, image); |
| 1097 | |
| 1098 | return calc_tile_offsets_packed(ctx, image); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1099 | } |
| 1100 | |
| 1101 | /* |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1102 | * Calculate the resizing ratio for the IC main processing section given input |
| 1103 | * size, fixed downsizing coefficient, and output size. |
| 1104 | * Either round to closest for the next tile's first pixel to minimize seams |
| 1105 | * and distortion (for all but right column / bottom row), or round down to |
| 1106 | * avoid sampling beyond the edges of the input image for this tile's last |
| 1107 | * pixel. |
| 1108 | * Returns the resizing coefficient, resizing ratio is 8192.0 / resize_coeff. |
| 1109 | */ |
| 1110 | static u32 calc_resize_coeff(u32 input_size, u32 downsize_coeff, |
| 1111 | u32 output_size, bool allow_overshoot) |
| 1112 | { |
| 1113 | u32 downsized = input_size >> downsize_coeff; |
| 1114 | |
| 1115 | if (allow_overshoot) |
| 1116 | return DIV_ROUND_CLOSEST(8192 * downsized, output_size); |
| 1117 | else |
| 1118 | return 8192 * (downsized - 1) / (output_size - 1); |
| 1119 | } |
| 1120 | |
| 1121 | /* |
| 1122 | * Slightly modify resize coefficients per tile to hide the bilinear |
| 1123 | * interpolator reset at tile borders, shifting the right / bottom edge |
| 1124 | * by up to a half input pixel. This removes noticeable seams between |
| 1125 | * tiles at higher upscaling factors. |
| 1126 | */ |
| 1127 | static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx) |
| 1128 | { |
| 1129 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 1130 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1131 | struct ipu_image_tile *in_tile, *out_tile; |
| 1132 | unsigned int col, row, tile_idx; |
| 1133 | unsigned int last_output; |
| 1134 | |
| 1135 | for (col = 0; col < ctx->in.num_cols; col++) { |
| 1136 | bool closest = (col < ctx->in.num_cols - 1) && |
| 1137 | !(ctx->rot_mode & IPU_ROT_BIT_HFLIP); |
| 1138 | u32 resized_width; |
| 1139 | u32 resize_coeff_h; |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1140 | u32 in_width; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1141 | |
| 1142 | tile_idx = col; |
| 1143 | in_tile = &ctx->in.tile[tile_idx]; |
| 1144 | out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; |
| 1145 | |
| 1146 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) |
| 1147 | resized_width = out_tile->height; |
| 1148 | else |
| 1149 | resized_width = out_tile->width; |
| 1150 | |
| 1151 | resize_coeff_h = calc_resize_coeff(in_tile->width, |
| 1152 | ctx->downsize_coeff_h, |
| 1153 | resized_width, closest); |
| 1154 | |
| 1155 | dev_dbg(priv->ipu->dev, "%s: column %u hscale: *8192/%u\n", |
| 1156 | __func__, col, resize_coeff_h); |
| 1157 | |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1158 | /* |
| 1159 | * With the horizontal scaling factor known, round up resized |
| 1160 | * width (output width or height) to burst size. |
| 1161 | */ |
| 1162 | resized_width = round_up(resized_width, 8); |
| 1163 | |
| 1164 | /* |
| 1165 | * Calculate input width from the last accessed input pixel |
| 1166 | * given resized width and scaling coefficients. Round up to |
| 1167 | * burst size. |
| 1168 | */ |
| 1169 | last_output = resized_width - 1; |
Philipp Zabel | 4d24376 | 2019-08-14 10:53:30 +0200 | [diff] [blame] | 1170 | if (closest && ((last_output * resize_coeff_h) % 8192)) |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1171 | last_output++; |
| 1172 | in_width = round_up( |
| 1173 | (DIV_ROUND_UP(last_output * resize_coeff_h, 8192) + 1) |
| 1174 | << ctx->downsize_coeff_h, 8); |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1175 | |
| 1176 | for (row = 0; row < ctx->in.num_rows; row++) { |
| 1177 | tile_idx = row * ctx->in.num_cols + col; |
| 1178 | in_tile = &ctx->in.tile[tile_idx]; |
| 1179 | out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; |
| 1180 | |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1181 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1182 | out_tile->height = resized_width; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1183 | else |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1184 | out_tile->width = resized_width; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1185 | |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1186 | in_tile->width = in_width; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1187 | } |
| 1188 | |
| 1189 | ctx->resize_coeffs_h[col] = resize_coeff_h; |
| 1190 | } |
| 1191 | |
| 1192 | for (row = 0; row < ctx->in.num_rows; row++) { |
| 1193 | bool closest = (row < ctx->in.num_rows - 1) && |
| 1194 | !(ctx->rot_mode & IPU_ROT_BIT_VFLIP); |
| 1195 | u32 resized_height; |
| 1196 | u32 resize_coeff_v; |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1197 | u32 in_height; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1198 | |
| 1199 | tile_idx = row * ctx->in.num_cols; |
| 1200 | in_tile = &ctx->in.tile[tile_idx]; |
| 1201 | out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; |
| 1202 | |
| 1203 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) |
| 1204 | resized_height = out_tile->width; |
| 1205 | else |
| 1206 | resized_height = out_tile->height; |
| 1207 | |
| 1208 | resize_coeff_v = calc_resize_coeff(in_tile->height, |
| 1209 | ctx->downsize_coeff_v, |
| 1210 | resized_height, closest); |
| 1211 | |
| 1212 | dev_dbg(priv->ipu->dev, "%s: row %u vscale: *8192/%u\n", |
| 1213 | __func__, row, resize_coeff_v); |
| 1214 | |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1215 | /* |
| 1216 | * With the vertical scaling factor known, round up resized |
| 1217 | * height (output width or height) to IDMAC limitations. |
| 1218 | */ |
| 1219 | resized_height = round_up(resized_height, 2); |
| 1220 | |
| 1221 | /* |
| 1222 | * Calculate input width from the last accessed input pixel |
| 1223 | * given resized height and scaling coefficients. Align to |
| 1224 | * IDMAC restrictions. |
| 1225 | */ |
| 1226 | last_output = resized_height - 1; |
Philipp Zabel | 4d24376 | 2019-08-14 10:53:30 +0200 | [diff] [blame] | 1227 | if (closest && ((last_output * resize_coeff_v) % 8192)) |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1228 | last_output++; |
| 1229 | in_height = round_up( |
| 1230 | (DIV_ROUND_UP(last_output * resize_coeff_v, 8192) + 1) |
| 1231 | << ctx->downsize_coeff_v, 2); |
| 1232 | |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1233 | for (col = 0; col < ctx->in.num_cols; col++) { |
| 1234 | tile_idx = row * ctx->in.num_cols + col; |
| 1235 | in_tile = &ctx->in.tile[tile_idx]; |
| 1236 | out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; |
| 1237 | |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1238 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1239 | out_tile->width = resized_height; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1240 | else |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1241 | out_tile->height = resized_height; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1242 | |
Philipp Zabel | fbefb84 | 2019-08-14 10:50:13 +0200 | [diff] [blame] | 1243 | in_tile->height = in_height; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1244 | } |
| 1245 | |
| 1246 | ctx->resize_coeffs_v[row] = resize_coeff_v; |
| 1247 | } |
| 1248 | } |
| 1249 | |
| 1250 | /* |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1251 | * return the number of runs in given queue (pending_q or done_q) |
| 1252 | * for this context. hold irqlock when calling. |
| 1253 | */ |
| 1254 | static int get_run_count(struct ipu_image_convert_ctx *ctx, |
| 1255 | struct list_head *q) |
| 1256 | { |
| 1257 | struct ipu_image_convert_run *run; |
| 1258 | int count = 0; |
| 1259 | |
| 1260 | lockdep_assert_held(&ctx->chan->irqlock); |
| 1261 | |
| 1262 | list_for_each_entry(run, q, list) { |
| 1263 | if (run->ctx == ctx) |
| 1264 | count++; |
| 1265 | } |
| 1266 | |
| 1267 | return count; |
| 1268 | } |
| 1269 | |
| 1270 | static void convert_stop(struct ipu_image_convert_run *run) |
| 1271 | { |
| 1272 | struct ipu_image_convert_ctx *ctx = run->ctx; |
| 1273 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 1274 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1275 | |
| 1276 | dev_dbg(priv->ipu->dev, "%s: task %u: stopping ctx %p run %p\n", |
| 1277 | __func__, chan->ic_task, ctx, run); |
| 1278 | |
| 1279 | /* disable IC tasks and the channels */ |
| 1280 | ipu_ic_task_disable(chan->ic); |
| 1281 | ipu_idmac_disable_channel(chan->in_chan); |
| 1282 | ipu_idmac_disable_channel(chan->out_chan); |
| 1283 | |
| 1284 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 1285 | ipu_idmac_disable_channel(chan->rotation_in_chan); |
| 1286 | ipu_idmac_disable_channel(chan->rotation_out_chan); |
| 1287 | ipu_idmac_unlink(chan->out_chan, chan->rotation_in_chan); |
| 1288 | } |
| 1289 | |
| 1290 | ipu_ic_disable(chan->ic); |
| 1291 | } |
| 1292 | |
| 1293 | static void init_idmac_channel(struct ipu_image_convert_ctx *ctx, |
| 1294 | struct ipuv3_channel *channel, |
| 1295 | struct ipu_image_convert_image *image, |
| 1296 | enum ipu_rotate_mode rot_mode, |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1297 | bool rot_swap_width_height, |
| 1298 | unsigned int tile) |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1299 | { |
| 1300 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 1301 | unsigned int burst_size; |
| 1302 | u32 width, height, stride; |
| 1303 | dma_addr_t addr0, addr1 = 0; |
| 1304 | struct ipu_image tile_image; |
| 1305 | unsigned int tile_idx[2]; |
| 1306 | |
| 1307 | if (image->type == IMAGE_CONVERT_OUT) { |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1308 | tile_idx[0] = ctx->out_tile_map[tile]; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1309 | tile_idx[1] = ctx->out_tile_map[1]; |
| 1310 | } else { |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1311 | tile_idx[0] = tile; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1312 | tile_idx[1] = 1; |
| 1313 | } |
| 1314 | |
| 1315 | if (rot_swap_width_height) { |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1316 | width = image->tile[tile_idx[0]].height; |
| 1317 | height = image->tile[tile_idx[0]].width; |
| 1318 | stride = image->tile[tile_idx[0]].rot_stride; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1319 | addr0 = ctx->rot_intermediate[0].phys; |
| 1320 | if (ctx->double_buffering) |
| 1321 | addr1 = ctx->rot_intermediate[1].phys; |
| 1322 | } else { |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1323 | width = image->tile[tile_idx[0]].width; |
| 1324 | height = image->tile[tile_idx[0]].height; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1325 | stride = image->stride; |
| 1326 | addr0 = image->base.phys0 + |
| 1327 | image->tile[tile_idx[0]].offset; |
| 1328 | if (ctx->double_buffering) |
| 1329 | addr1 = image->base.phys0 + |
| 1330 | image->tile[tile_idx[1]].offset; |
| 1331 | } |
| 1332 | |
| 1333 | ipu_cpmem_zero(channel); |
| 1334 | |
| 1335 | memset(&tile_image, 0, sizeof(tile_image)); |
| 1336 | tile_image.pix.width = tile_image.rect.width = width; |
| 1337 | tile_image.pix.height = tile_image.rect.height = height; |
| 1338 | tile_image.pix.bytesperline = stride; |
| 1339 | tile_image.pix.pixelformat = image->fmt->fourcc; |
| 1340 | tile_image.phys0 = addr0; |
| 1341 | tile_image.phys1 = addr1; |
Steve Longerbeam | dec408f | 2018-10-06 14:45:48 -0700 | [diff] [blame] | 1342 | if (image->fmt->planar && !rot_swap_width_height) { |
| 1343 | tile_image.u_offset = image->tile[tile_idx[0]].u_off; |
| 1344 | tile_image.v_offset = image->tile[tile_idx[0]].v_off; |
| 1345 | } |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1346 | |
Steve Longerbeam | dec408f | 2018-10-06 14:45:48 -0700 | [diff] [blame] | 1347 | ipu_cpmem_set_image(channel, &tile_image); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1348 | |
| 1349 | if (rot_mode) |
| 1350 | ipu_cpmem_set_rotation(channel, rot_mode); |
| 1351 | |
Steve Longerbeam | fee7782 | 2019-06-13 18:02:55 -0700 | [diff] [blame] | 1352 | /* |
| 1353 | * Skip writing U and V components to odd rows in the output |
| 1354 | * channels for planar 4:2:0. |
| 1355 | */ |
| 1356 | if ((channel == chan->out_chan || |
| 1357 | channel == chan->rotation_out_chan) && |
| 1358 | image->fmt->planar && image->fmt->uv_height_dec == 2) |
| 1359 | ipu_cpmem_skip_odd_chroma_rows(channel); |
| 1360 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1361 | if (channel == chan->rotation_in_chan || |
| 1362 | channel == chan->rotation_out_chan) { |
| 1363 | burst_size = 8; |
| 1364 | ipu_cpmem_set_block_mode(channel); |
| 1365 | } else |
| 1366 | burst_size = (width % 16) ? 8 : 16; |
| 1367 | |
| 1368 | ipu_cpmem_set_burstsize(channel, burst_size); |
| 1369 | |
| 1370 | ipu_ic_task_idma_init(chan->ic, channel, width, height, |
| 1371 | burst_size, rot_mode); |
| 1372 | |
Lucas Stach | 320a89a | 2017-03-08 12:13:19 +0100 | [diff] [blame] | 1373 | /* |
| 1374 | * Setting a non-zero AXI ID collides with the PRG AXI snooping, so |
| 1375 | * only do this when there is no PRG present. |
| 1376 | */ |
| 1377 | if (!channel->ipu->prg_priv) |
| 1378 | ipu_cpmem_set_axi_id(channel, 1); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1379 | |
| 1380 | ipu_idmac_set_double_buffer(channel, ctx->double_buffering); |
| 1381 | } |
| 1382 | |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1383 | static int convert_start(struct ipu_image_convert_run *run, unsigned int tile) |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1384 | { |
| 1385 | struct ipu_image_convert_ctx *ctx = run->ctx; |
| 1386 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 1387 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1388 | struct ipu_image_convert_image *s_image = &ctx->in; |
| 1389 | struct ipu_image_convert_image *d_image = &ctx->out; |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1390 | unsigned int dst_tile = ctx->out_tile_map[tile]; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1391 | unsigned int dest_width, dest_height; |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1392 | unsigned int col, row; |
| 1393 | u32 rsc; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1394 | int ret; |
| 1395 | |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1396 | dev_dbg(priv->ipu->dev, "%s: task %u: starting ctx %p run %p tile %u -> %u\n", |
| 1397 | __func__, chan->ic_task, ctx, run, tile, dst_tile); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1398 | |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1399 | /* clear EOF irq mask */ |
| 1400 | ctx->eof_mask = 0; |
| 1401 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1402 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 1403 | /* swap width/height for resizer */ |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1404 | dest_width = d_image->tile[dst_tile].height; |
| 1405 | dest_height = d_image->tile[dst_tile].width; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1406 | } else { |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1407 | dest_width = d_image->tile[dst_tile].width; |
| 1408 | dest_height = d_image->tile[dst_tile].height; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1409 | } |
| 1410 | |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 1411 | row = tile / s_image->num_cols; |
| 1412 | col = tile % s_image->num_cols; |
| 1413 | |
| 1414 | rsc = (ctx->downsize_coeff_v << 30) | |
| 1415 | (ctx->resize_coeffs_v[row] << 16) | |
| 1416 | (ctx->downsize_coeff_h << 14) | |
| 1417 | (ctx->resize_coeffs_h[col]); |
| 1418 | |
| 1419 | dev_dbg(priv->ipu->dev, "%s: %ux%u -> %ux%u (rsc = 0x%x)\n", |
| 1420 | __func__, s_image->tile[tile].width, |
| 1421 | s_image->tile[tile].height, dest_width, dest_height, rsc); |
| 1422 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1423 | /* setup the IC resizer and CSC */ |
Steve Longerbeam | f208b26 | 2019-05-21 18:03:14 -0700 | [diff] [blame] | 1424 | ret = ipu_ic_task_init_rsc(chan->ic, &ctx->csc, |
| 1425 | s_image->tile[tile].width, |
| 1426 | s_image->tile[tile].height, |
| 1427 | dest_width, |
| 1428 | dest_height, |
| 1429 | rsc); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1430 | if (ret) { |
| 1431 | dev_err(priv->ipu->dev, "ipu_ic_task_init failed, %d\n", ret); |
| 1432 | return ret; |
| 1433 | } |
| 1434 | |
| 1435 | /* init the source MEM-->IC PP IDMAC channel */ |
| 1436 | init_idmac_channel(ctx, chan->in_chan, s_image, |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1437 | IPU_ROTATE_NONE, false, tile); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1438 | |
| 1439 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 1440 | /* init the IC PP-->MEM IDMAC channel */ |
| 1441 | init_idmac_channel(ctx, chan->out_chan, d_image, |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1442 | IPU_ROTATE_NONE, true, tile); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1443 | |
| 1444 | /* init the MEM-->IC PP ROT IDMAC channel */ |
| 1445 | init_idmac_channel(ctx, chan->rotation_in_chan, d_image, |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1446 | ctx->rot_mode, true, tile); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1447 | |
| 1448 | /* init the destination IC PP ROT-->MEM IDMAC channel */ |
| 1449 | init_idmac_channel(ctx, chan->rotation_out_chan, d_image, |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1450 | IPU_ROTATE_NONE, false, tile); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1451 | |
| 1452 | /* now link IC PP-->MEM to MEM-->IC PP ROT */ |
| 1453 | ipu_idmac_link(chan->out_chan, chan->rotation_in_chan); |
| 1454 | } else { |
| 1455 | /* init the destination IC PP-->MEM IDMAC channel */ |
| 1456 | init_idmac_channel(ctx, chan->out_chan, d_image, |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1457 | ctx->rot_mode, false, tile); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1458 | } |
| 1459 | |
| 1460 | /* enable the IC */ |
| 1461 | ipu_ic_enable(chan->ic); |
| 1462 | |
| 1463 | /* set buffers ready */ |
| 1464 | ipu_idmac_select_buffer(chan->in_chan, 0); |
| 1465 | ipu_idmac_select_buffer(chan->out_chan, 0); |
| 1466 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) |
| 1467 | ipu_idmac_select_buffer(chan->rotation_out_chan, 0); |
| 1468 | if (ctx->double_buffering) { |
| 1469 | ipu_idmac_select_buffer(chan->in_chan, 1); |
| 1470 | ipu_idmac_select_buffer(chan->out_chan, 1); |
| 1471 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) |
| 1472 | ipu_idmac_select_buffer(chan->rotation_out_chan, 1); |
| 1473 | } |
| 1474 | |
| 1475 | /* enable the channels! */ |
| 1476 | ipu_idmac_enable_channel(chan->in_chan); |
| 1477 | ipu_idmac_enable_channel(chan->out_chan); |
| 1478 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 1479 | ipu_idmac_enable_channel(chan->rotation_in_chan); |
| 1480 | ipu_idmac_enable_channel(chan->rotation_out_chan); |
| 1481 | } |
| 1482 | |
| 1483 | ipu_ic_task_enable(chan->ic); |
| 1484 | |
| 1485 | ipu_cpmem_dump(chan->in_chan); |
| 1486 | ipu_cpmem_dump(chan->out_chan); |
| 1487 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 1488 | ipu_cpmem_dump(chan->rotation_in_chan); |
| 1489 | ipu_cpmem_dump(chan->rotation_out_chan); |
| 1490 | } |
| 1491 | |
| 1492 | ipu_dump(priv->ipu); |
| 1493 | |
| 1494 | return 0; |
| 1495 | } |
| 1496 | |
| 1497 | /* hold irqlock when calling */ |
| 1498 | static int do_run(struct ipu_image_convert_run *run) |
| 1499 | { |
| 1500 | struct ipu_image_convert_ctx *ctx = run->ctx; |
| 1501 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 1502 | |
| 1503 | lockdep_assert_held(&chan->irqlock); |
| 1504 | |
| 1505 | ctx->in.base.phys0 = run->in_phys; |
| 1506 | ctx->out.base.phys0 = run->out_phys; |
| 1507 | |
| 1508 | ctx->cur_buf_num = 0; |
| 1509 | ctx->next_tile = 1; |
| 1510 | |
| 1511 | /* remove run from pending_q and set as current */ |
| 1512 | list_del(&run->list); |
| 1513 | chan->current_run = run; |
| 1514 | |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 1515 | return convert_start(run, 0); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1516 | } |
| 1517 | |
| 1518 | /* hold irqlock when calling */ |
| 1519 | static void run_next(struct ipu_image_convert_chan *chan) |
| 1520 | { |
| 1521 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1522 | struct ipu_image_convert_run *run, *tmp; |
| 1523 | int ret; |
| 1524 | |
| 1525 | lockdep_assert_held(&chan->irqlock); |
| 1526 | |
| 1527 | list_for_each_entry_safe(run, tmp, &chan->pending_q, list) { |
| 1528 | /* skip contexts that are aborting */ |
| 1529 | if (run->ctx->aborting) { |
| 1530 | dev_dbg(priv->ipu->dev, |
| 1531 | "%s: task %u: skipping aborting ctx %p run %p\n", |
| 1532 | __func__, chan->ic_task, run->ctx, run); |
| 1533 | continue; |
| 1534 | } |
| 1535 | |
| 1536 | ret = do_run(run); |
| 1537 | if (!ret) |
| 1538 | break; |
| 1539 | |
| 1540 | /* |
| 1541 | * something went wrong with start, add the run |
| 1542 | * to done q and continue to the next run in the |
| 1543 | * pending q. |
| 1544 | */ |
| 1545 | run->status = ret; |
| 1546 | list_add_tail(&run->list, &chan->done_q); |
| 1547 | chan->current_run = NULL; |
| 1548 | } |
| 1549 | } |
| 1550 | |
| 1551 | static void empty_done_q(struct ipu_image_convert_chan *chan) |
| 1552 | { |
| 1553 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1554 | struct ipu_image_convert_run *run; |
| 1555 | unsigned long flags; |
| 1556 | |
| 1557 | spin_lock_irqsave(&chan->irqlock, flags); |
| 1558 | |
| 1559 | while (!list_empty(&chan->done_q)) { |
| 1560 | run = list_entry(chan->done_q.next, |
| 1561 | struct ipu_image_convert_run, |
| 1562 | list); |
| 1563 | |
| 1564 | list_del(&run->list); |
| 1565 | |
| 1566 | dev_dbg(priv->ipu->dev, |
| 1567 | "%s: task %u: completing ctx %p run %p with %d\n", |
| 1568 | __func__, chan->ic_task, run->ctx, run, run->status); |
| 1569 | |
| 1570 | /* call the completion callback and free the run */ |
| 1571 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 1572 | run->ctx->complete(run, run->ctx->complete_context); |
| 1573 | spin_lock_irqsave(&chan->irqlock, flags); |
| 1574 | } |
| 1575 | |
| 1576 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 1577 | } |
| 1578 | |
| 1579 | /* |
| 1580 | * the bottom half thread clears out the done_q, calling the |
| 1581 | * completion handler for each. |
| 1582 | */ |
| 1583 | static irqreturn_t do_bh(int irq, void *dev_id) |
| 1584 | { |
| 1585 | struct ipu_image_convert_chan *chan = dev_id; |
| 1586 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1587 | struct ipu_image_convert_ctx *ctx; |
| 1588 | unsigned long flags; |
| 1589 | |
| 1590 | dev_dbg(priv->ipu->dev, "%s: task %u: enter\n", __func__, |
| 1591 | chan->ic_task); |
| 1592 | |
| 1593 | empty_done_q(chan); |
| 1594 | |
| 1595 | spin_lock_irqsave(&chan->irqlock, flags); |
| 1596 | |
| 1597 | /* |
| 1598 | * the done_q is cleared out, signal any contexts |
| 1599 | * that are aborting that abort can complete. |
| 1600 | */ |
| 1601 | list_for_each_entry(ctx, &chan->ctx_list, list) { |
| 1602 | if (ctx->aborting) { |
| 1603 | dev_dbg(priv->ipu->dev, |
| 1604 | "%s: task %u: signaling abort for ctx %p\n", |
| 1605 | __func__, chan->ic_task, ctx); |
Steve Longerbeam | aa60b26 | 2018-09-19 16:17:15 -0700 | [diff] [blame] | 1606 | complete_all(&ctx->aborted); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1607 | } |
| 1608 | } |
| 1609 | |
| 1610 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 1611 | |
| 1612 | dev_dbg(priv->ipu->dev, "%s: task %u: exit\n", __func__, |
| 1613 | chan->ic_task); |
| 1614 | |
| 1615 | return IRQ_HANDLED; |
| 1616 | } |
| 1617 | |
Philipp Zabel | 0537db8 | 2018-09-18 11:34:11 +0200 | [diff] [blame] | 1618 | static bool ic_settings_changed(struct ipu_image_convert_ctx *ctx) |
| 1619 | { |
| 1620 | unsigned int cur_tile = ctx->next_tile - 1; |
| 1621 | unsigned int next_tile = ctx->next_tile; |
| 1622 | |
| 1623 | if (ctx->resize_coeffs_h[cur_tile % ctx->in.num_cols] != |
| 1624 | ctx->resize_coeffs_h[next_tile % ctx->in.num_cols] || |
| 1625 | ctx->resize_coeffs_v[cur_tile / ctx->in.num_cols] != |
| 1626 | ctx->resize_coeffs_v[next_tile / ctx->in.num_cols] || |
| 1627 | ctx->in.tile[cur_tile].width != ctx->in.tile[next_tile].width || |
| 1628 | ctx->in.tile[cur_tile].height != ctx->in.tile[next_tile].height || |
| 1629 | ctx->out.tile[cur_tile].width != ctx->out.tile[next_tile].width || |
| 1630 | ctx->out.tile[cur_tile].height != ctx->out.tile[next_tile].height) |
| 1631 | return true; |
| 1632 | |
| 1633 | return false; |
| 1634 | } |
| 1635 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1636 | /* hold irqlock when calling */ |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1637 | static irqreturn_t do_tile_complete(struct ipu_image_convert_run *run) |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1638 | { |
| 1639 | struct ipu_image_convert_ctx *ctx = run->ctx; |
| 1640 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 1641 | struct ipu_image_tile *src_tile, *dst_tile; |
| 1642 | struct ipu_image_convert_image *s_image = &ctx->in; |
| 1643 | struct ipu_image_convert_image *d_image = &ctx->out; |
| 1644 | struct ipuv3_channel *outch; |
| 1645 | unsigned int dst_idx; |
| 1646 | |
| 1647 | lockdep_assert_held(&chan->irqlock); |
| 1648 | |
| 1649 | outch = ipu_rot_mode_is_irt(ctx->rot_mode) ? |
| 1650 | chan->rotation_out_chan : chan->out_chan; |
| 1651 | |
| 1652 | /* |
| 1653 | * It is difficult to stop the channel DMA before the channels |
| 1654 | * enter the paused state. Without double-buffering the channels |
| 1655 | * are always in a paused state when the EOF irq occurs, so it |
| 1656 | * is safe to stop the channels now. For double-buffering we |
| 1657 | * just ignore the abort until the operation completes, when it |
| 1658 | * is safe to shut down. |
| 1659 | */ |
| 1660 | if (ctx->aborting && !ctx->double_buffering) { |
| 1661 | convert_stop(run); |
| 1662 | run->status = -EIO; |
| 1663 | goto done; |
| 1664 | } |
| 1665 | |
| 1666 | if (ctx->next_tile == ctx->num_tiles) { |
| 1667 | /* |
| 1668 | * the conversion is complete |
| 1669 | */ |
| 1670 | convert_stop(run); |
| 1671 | run->status = 0; |
| 1672 | goto done; |
| 1673 | } |
| 1674 | |
| 1675 | /* |
| 1676 | * not done, place the next tile buffers. |
| 1677 | */ |
| 1678 | if (!ctx->double_buffering) { |
Philipp Zabel | 0537db8 | 2018-09-18 11:34:11 +0200 | [diff] [blame] | 1679 | if (ic_settings_changed(ctx)) { |
| 1680 | convert_stop(run); |
| 1681 | convert_start(run, ctx->next_tile); |
| 1682 | } else { |
| 1683 | src_tile = &s_image->tile[ctx->next_tile]; |
| 1684 | dst_idx = ctx->out_tile_map[ctx->next_tile]; |
| 1685 | dst_tile = &d_image->tile[dst_idx]; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1686 | |
Philipp Zabel | 0537db8 | 2018-09-18 11:34:11 +0200 | [diff] [blame] | 1687 | ipu_cpmem_set_buffer(chan->in_chan, 0, |
| 1688 | s_image->base.phys0 + |
| 1689 | src_tile->offset); |
| 1690 | ipu_cpmem_set_buffer(outch, 0, |
| 1691 | d_image->base.phys0 + |
| 1692 | dst_tile->offset); |
| 1693 | if (s_image->fmt->planar) |
| 1694 | ipu_cpmem_set_uv_offset(chan->in_chan, |
| 1695 | src_tile->u_off, |
| 1696 | src_tile->v_off); |
| 1697 | if (d_image->fmt->planar) |
| 1698 | ipu_cpmem_set_uv_offset(outch, |
| 1699 | dst_tile->u_off, |
| 1700 | dst_tile->v_off); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1701 | |
Philipp Zabel | 0537db8 | 2018-09-18 11:34:11 +0200 | [diff] [blame] | 1702 | ipu_idmac_select_buffer(chan->in_chan, 0); |
| 1703 | ipu_idmac_select_buffer(outch, 0); |
| 1704 | } |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1705 | } else if (ctx->next_tile < ctx->num_tiles - 1) { |
| 1706 | |
| 1707 | src_tile = &s_image->tile[ctx->next_tile + 1]; |
| 1708 | dst_idx = ctx->out_tile_map[ctx->next_tile + 1]; |
| 1709 | dst_tile = &d_image->tile[dst_idx]; |
| 1710 | |
| 1711 | ipu_cpmem_set_buffer(chan->in_chan, ctx->cur_buf_num, |
| 1712 | s_image->base.phys0 + src_tile->offset); |
| 1713 | ipu_cpmem_set_buffer(outch, ctx->cur_buf_num, |
| 1714 | d_image->base.phys0 + dst_tile->offset); |
| 1715 | |
| 1716 | ipu_idmac_select_buffer(chan->in_chan, ctx->cur_buf_num); |
| 1717 | ipu_idmac_select_buffer(outch, ctx->cur_buf_num); |
| 1718 | |
| 1719 | ctx->cur_buf_num ^= 1; |
| 1720 | } |
| 1721 | |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1722 | ctx->eof_mask = 0; /* clear EOF irq mask for next tile */ |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1723 | ctx->next_tile++; |
| 1724 | return IRQ_HANDLED; |
| 1725 | done: |
| 1726 | list_add_tail(&run->list, &chan->done_q); |
| 1727 | chan->current_run = NULL; |
| 1728 | run_next(chan); |
| 1729 | return IRQ_WAKE_THREAD; |
| 1730 | } |
| 1731 | |
Steve Longerbeam | 0f6245f | 2020-06-17 15:40:37 -0700 | [diff] [blame] | 1732 | static irqreturn_t eof_irq(int irq, void *data) |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1733 | { |
| 1734 | struct ipu_image_convert_chan *chan = data; |
| 1735 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1736 | struct ipu_image_convert_ctx *ctx; |
| 1737 | struct ipu_image_convert_run *run; |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1738 | irqreturn_t ret = IRQ_HANDLED; |
| 1739 | bool tile_complete = false; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1740 | unsigned long flags; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1741 | |
| 1742 | spin_lock_irqsave(&chan->irqlock, flags); |
| 1743 | |
| 1744 | /* get current run and its context */ |
| 1745 | run = chan->current_run; |
| 1746 | if (!run) { |
| 1747 | ret = IRQ_NONE; |
| 1748 | goto out; |
| 1749 | } |
| 1750 | |
| 1751 | ctx = run->ctx; |
| 1752 | |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1753 | if (irq == chan->in_eof_irq) { |
| 1754 | ctx->eof_mask |= EOF_IRQ_IN; |
| 1755 | } else if (irq == chan->out_eof_irq) { |
| 1756 | ctx->eof_mask |= EOF_IRQ_OUT; |
| 1757 | } else if (irq == chan->rot_in_eof_irq || |
| 1758 | irq == chan->rot_out_eof_irq) { |
Steve Longerbeam | 0f6245f | 2020-06-17 15:40:37 -0700 | [diff] [blame] | 1759 | if (!ipu_rot_mode_is_irt(ctx->rot_mode)) { |
| 1760 | /* this was NOT a rotation op, shouldn't happen */ |
| 1761 | dev_err(priv->ipu->dev, |
| 1762 | "Unexpected rotation interrupt\n"); |
Steve Longerbeam | 0f6245f | 2020-06-17 15:40:37 -0700 | [diff] [blame] | 1763 | goto out; |
| 1764 | } |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1765 | ctx->eof_mask |= (irq == chan->rot_in_eof_irq) ? |
| 1766 | EOF_IRQ_ROT_IN : EOF_IRQ_ROT_OUT; |
Steve Longerbeam | 0f6245f | 2020-06-17 15:40:37 -0700 | [diff] [blame] | 1767 | } else { |
| 1768 | dev_err(priv->ipu->dev, "Received unknown irq %d\n", irq); |
| 1769 | ret = IRQ_NONE; |
| 1770 | goto out; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1771 | } |
| 1772 | |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1773 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) |
| 1774 | tile_complete = (ctx->eof_mask == EOF_IRQ_ROT_COMPLETE); |
| 1775 | else |
| 1776 | tile_complete = (ctx->eof_mask == EOF_IRQ_COMPLETE); |
| 1777 | |
| 1778 | if (tile_complete) |
| 1779 | ret = do_tile_complete(run); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1780 | out: |
| 1781 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 1782 | return ret; |
| 1783 | } |
| 1784 | |
| 1785 | /* |
| 1786 | * try to force the completion of runs for this ctx. Called when |
| 1787 | * abort wait times out in ipu_image_convert_abort(). |
| 1788 | */ |
| 1789 | static void force_abort(struct ipu_image_convert_ctx *ctx) |
| 1790 | { |
| 1791 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 1792 | struct ipu_image_convert_run *run; |
| 1793 | unsigned long flags; |
| 1794 | |
| 1795 | spin_lock_irqsave(&chan->irqlock, flags); |
| 1796 | |
| 1797 | run = chan->current_run; |
| 1798 | if (run && run->ctx == ctx) { |
| 1799 | convert_stop(run); |
| 1800 | run->status = -EIO; |
| 1801 | list_add_tail(&run->list, &chan->done_q); |
| 1802 | chan->current_run = NULL; |
| 1803 | run_next(chan); |
| 1804 | } |
| 1805 | |
| 1806 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 1807 | |
| 1808 | empty_done_q(chan); |
| 1809 | } |
| 1810 | |
| 1811 | static void release_ipu_resources(struct ipu_image_convert_chan *chan) |
| 1812 | { |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1813 | if (chan->in_eof_irq >= 0) |
| 1814 | free_irq(chan->in_eof_irq, chan); |
| 1815 | if (chan->rot_in_eof_irq >= 0) |
| 1816 | free_irq(chan->rot_in_eof_irq, chan); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1817 | if (chan->out_eof_irq >= 0) |
| 1818 | free_irq(chan->out_eof_irq, chan); |
| 1819 | if (chan->rot_out_eof_irq >= 0) |
| 1820 | free_irq(chan->rot_out_eof_irq, chan); |
| 1821 | |
| 1822 | if (!IS_ERR_OR_NULL(chan->in_chan)) |
| 1823 | ipu_idmac_put(chan->in_chan); |
| 1824 | if (!IS_ERR_OR_NULL(chan->out_chan)) |
| 1825 | ipu_idmac_put(chan->out_chan); |
| 1826 | if (!IS_ERR_OR_NULL(chan->rotation_in_chan)) |
| 1827 | ipu_idmac_put(chan->rotation_in_chan); |
| 1828 | if (!IS_ERR_OR_NULL(chan->rotation_out_chan)) |
| 1829 | ipu_idmac_put(chan->rotation_out_chan); |
| 1830 | if (!IS_ERR_OR_NULL(chan->ic)) |
| 1831 | ipu_ic_put(chan->ic); |
| 1832 | |
| 1833 | chan->in_chan = chan->out_chan = chan->rotation_in_chan = |
| 1834 | chan->rotation_out_chan = NULL; |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1835 | chan->in_eof_irq = -1; |
| 1836 | chan->rot_in_eof_irq = -1; |
| 1837 | chan->out_eof_irq = -1; |
| 1838 | chan->rot_out_eof_irq = -1; |
| 1839 | } |
| 1840 | |
| 1841 | static int get_eof_irq(struct ipu_image_convert_chan *chan, |
| 1842 | struct ipuv3_channel *channel) |
| 1843 | { |
| 1844 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1845 | int ret, irq; |
| 1846 | |
| 1847 | irq = ipu_idmac_channel_irq(priv->ipu, channel, IPU_IRQ_EOF); |
| 1848 | |
| 1849 | ret = request_threaded_irq(irq, eof_irq, do_bh, 0, "ipu-ic", chan); |
| 1850 | if (ret < 0) { |
| 1851 | dev_err(priv->ipu->dev, "could not acquire irq %d\n", irq); |
| 1852 | return ret; |
| 1853 | } |
| 1854 | |
| 1855 | return irq; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1856 | } |
| 1857 | |
| 1858 | static int get_ipu_resources(struct ipu_image_convert_chan *chan) |
| 1859 | { |
| 1860 | const struct ipu_image_convert_dma_chan *dma = chan->dma_ch; |
| 1861 | struct ipu_image_convert_priv *priv = chan->priv; |
| 1862 | int ret; |
| 1863 | |
| 1864 | /* get IC */ |
| 1865 | chan->ic = ipu_ic_get(priv->ipu, chan->ic_task); |
| 1866 | if (IS_ERR(chan->ic)) { |
| 1867 | dev_err(priv->ipu->dev, "could not acquire IC\n"); |
| 1868 | ret = PTR_ERR(chan->ic); |
| 1869 | goto err; |
| 1870 | } |
| 1871 | |
| 1872 | /* get IDMAC channels */ |
| 1873 | chan->in_chan = ipu_idmac_get(priv->ipu, dma->in); |
| 1874 | chan->out_chan = ipu_idmac_get(priv->ipu, dma->out); |
| 1875 | if (IS_ERR(chan->in_chan) || IS_ERR(chan->out_chan)) { |
| 1876 | dev_err(priv->ipu->dev, "could not acquire idmac channels\n"); |
| 1877 | ret = -EBUSY; |
| 1878 | goto err; |
| 1879 | } |
| 1880 | |
| 1881 | chan->rotation_in_chan = ipu_idmac_get(priv->ipu, dma->rot_in); |
| 1882 | chan->rotation_out_chan = ipu_idmac_get(priv->ipu, dma->rot_out); |
| 1883 | if (IS_ERR(chan->rotation_in_chan) || IS_ERR(chan->rotation_out_chan)) { |
| 1884 | dev_err(priv->ipu->dev, |
| 1885 | "could not acquire idmac rotation channels\n"); |
| 1886 | ret = -EBUSY; |
| 1887 | goto err; |
| 1888 | } |
| 1889 | |
| 1890 | /* acquire the EOF interrupts */ |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1891 | ret = get_eof_irq(chan, chan->in_chan); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1892 | if (ret < 0) { |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1893 | chan->in_eof_irq = -1; |
| 1894 | goto err; |
| 1895 | } |
| 1896 | chan->in_eof_irq = ret; |
| 1897 | |
| 1898 | ret = get_eof_irq(chan, chan->rotation_in_chan); |
| 1899 | if (ret < 0) { |
| 1900 | chan->rot_in_eof_irq = -1; |
| 1901 | goto err; |
| 1902 | } |
| 1903 | chan->rot_in_eof_irq = ret; |
| 1904 | |
| 1905 | ret = get_eof_irq(chan, chan->out_chan); |
| 1906 | if (ret < 0) { |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1907 | chan->out_eof_irq = -1; |
| 1908 | goto err; |
| 1909 | } |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1910 | chan->out_eof_irq = ret; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1911 | |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1912 | ret = get_eof_irq(chan, chan->rotation_out_chan); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1913 | if (ret < 0) { |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1914 | chan->rot_out_eof_irq = -1; |
| 1915 | goto err; |
| 1916 | } |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 1917 | chan->rot_out_eof_irq = ret; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1918 | |
| 1919 | return 0; |
| 1920 | err: |
| 1921 | release_ipu_resources(chan); |
| 1922 | return ret; |
| 1923 | } |
| 1924 | |
| 1925 | static int fill_image(struct ipu_image_convert_ctx *ctx, |
| 1926 | struct ipu_image_convert_image *ic_image, |
| 1927 | struct ipu_image *image, |
| 1928 | enum ipu_image_convert_type type) |
| 1929 | { |
| 1930 | struct ipu_image_convert_priv *priv = ctx->chan->priv; |
| 1931 | |
| 1932 | ic_image->base = *image; |
| 1933 | ic_image->type = type; |
| 1934 | |
| 1935 | ic_image->fmt = get_format(image->pix.pixelformat); |
| 1936 | if (!ic_image->fmt) { |
| 1937 | dev_err(priv->ipu->dev, "pixelformat not supported for %s\n", |
| 1938 | type == IMAGE_CONVERT_OUT ? "Output" : "Input"); |
| 1939 | return -EINVAL; |
| 1940 | } |
| 1941 | |
| 1942 | if (ic_image->fmt->planar) |
| 1943 | ic_image->stride = ic_image->base.pix.width; |
| 1944 | else |
| 1945 | ic_image->stride = ic_image->base.pix.bytesperline; |
| 1946 | |
Philipp Zabel | 26ddd03 | 2018-09-18 11:34:13 +0200 | [diff] [blame] | 1947 | return 0; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1948 | } |
| 1949 | |
| 1950 | /* borrowed from drivers/media/v4l2-core/v4l2-common.c */ |
| 1951 | static unsigned int clamp_align(unsigned int x, unsigned int min, |
| 1952 | unsigned int max, unsigned int align) |
| 1953 | { |
| 1954 | /* Bits that must be zero to be aligned */ |
| 1955 | unsigned int mask = ~((1 << align) - 1); |
| 1956 | |
| 1957 | /* Clamp to aligned min and max */ |
| 1958 | x = clamp(x, (min + ~mask) & mask, max & mask); |
| 1959 | |
| 1960 | /* Round to nearest aligned value */ |
| 1961 | if (align) |
| 1962 | x = (x + (1 << (align - 1))) & mask; |
| 1963 | |
| 1964 | return x; |
| 1965 | } |
| 1966 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1967 | /* Adjusts input/output images to IPU restrictions */ |
| 1968 | void ipu_image_convert_adjust(struct ipu_image *in, struct ipu_image *out, |
| 1969 | enum ipu_rotate_mode rot_mode) |
| 1970 | { |
| 1971 | const struct ipu_image_pixfmt *infmt, *outfmt; |
Steve Longerbeam | ff391ec | 2019-06-11 18:16:55 -0700 | [diff] [blame] | 1972 | u32 w_align_out, h_align_out; |
| 1973 | u32 w_align_in, h_align_in; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 1974 | |
| 1975 | infmt = get_format(in->pix.pixelformat); |
| 1976 | outfmt = get_format(out->pix.pixelformat); |
| 1977 | |
| 1978 | /* set some default pixel formats if needed */ |
| 1979 | if (!infmt) { |
| 1980 | in->pix.pixelformat = V4L2_PIX_FMT_RGB24; |
| 1981 | infmt = get_format(V4L2_PIX_FMT_RGB24); |
| 1982 | } |
| 1983 | if (!outfmt) { |
| 1984 | out->pix.pixelformat = V4L2_PIX_FMT_RGB24; |
| 1985 | outfmt = get_format(V4L2_PIX_FMT_RGB24); |
| 1986 | } |
| 1987 | |
| 1988 | /* image converter does not handle fields */ |
| 1989 | in->pix.field = out->pix.field = V4L2_FIELD_NONE; |
| 1990 | |
| 1991 | /* resizer cannot downsize more than 4:1 */ |
| 1992 | if (ipu_rot_mode_is_irt(rot_mode)) { |
| 1993 | out->pix.height = max_t(__u32, out->pix.height, |
| 1994 | in->pix.width / 4); |
| 1995 | out->pix.width = max_t(__u32, out->pix.width, |
| 1996 | in->pix.height / 4); |
| 1997 | } else { |
| 1998 | out->pix.width = max_t(__u32, out->pix.width, |
| 1999 | in->pix.width / 4); |
| 2000 | out->pix.height = max_t(__u32, out->pix.height, |
| 2001 | in->pix.height / 4); |
| 2002 | } |
| 2003 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2004 | /* align input width/height */ |
Steve Longerbeam | ff391ec | 2019-06-11 18:16:55 -0700 | [diff] [blame] | 2005 | w_align_in = ilog2(tile_width_align(IMAGE_CONVERT_IN, infmt, |
| 2006 | rot_mode)); |
| 2007 | h_align_in = ilog2(tile_height_align(IMAGE_CONVERT_IN, infmt, |
| 2008 | rot_mode)); |
| 2009 | in->pix.width = clamp_align(in->pix.width, MIN_W, MAX_W, |
| 2010 | w_align_in); |
| 2011 | in->pix.height = clamp_align(in->pix.height, MIN_H, MAX_H, |
| 2012 | h_align_in); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2013 | |
| 2014 | /* align output width/height */ |
Steve Longerbeam | ff391ec | 2019-06-11 18:16:55 -0700 | [diff] [blame] | 2015 | w_align_out = ilog2(tile_width_align(IMAGE_CONVERT_OUT, outfmt, |
| 2016 | rot_mode)); |
| 2017 | h_align_out = ilog2(tile_height_align(IMAGE_CONVERT_OUT, outfmt, |
| 2018 | rot_mode)); |
| 2019 | out->pix.width = clamp_align(out->pix.width, MIN_W, MAX_W, |
| 2020 | w_align_out); |
| 2021 | out->pix.height = clamp_align(out->pix.height, MIN_H, MAX_H, |
| 2022 | h_align_out); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2023 | |
| 2024 | /* set input/output strides and image sizes */ |
Philipp Zabel | d966e23 | 2018-09-18 11:34:18 +0200 | [diff] [blame] | 2025 | in->pix.bytesperline = infmt->planar ? |
Steve Longerbeam | ff391ec | 2019-06-11 18:16:55 -0700 | [diff] [blame] | 2026 | clamp_align(in->pix.width, 2 << w_align_in, MAX_W, |
| 2027 | w_align_in) : |
Philipp Zabel | d966e23 | 2018-09-18 11:34:18 +0200 | [diff] [blame] | 2028 | clamp_align((in->pix.width * infmt->bpp) >> 3, |
Steve Longerbeam | bca4d70 | 2019-06-11 18:16:56 -0700 | [diff] [blame] | 2029 | ((2 << w_align_in) * infmt->bpp) >> 3, |
| 2030 | (MAX_W * infmt->bpp) >> 3, |
| 2031 | w_align_in); |
Philipp Zabel | d966e23 | 2018-09-18 11:34:18 +0200 | [diff] [blame] | 2032 | in->pix.sizeimage = infmt->planar ? |
| 2033 | (in->pix.height * in->pix.bytesperline * infmt->bpp) >> 3 : |
| 2034 | in->pix.height * in->pix.bytesperline; |
| 2035 | out->pix.bytesperline = outfmt->planar ? out->pix.width : |
| 2036 | (out->pix.width * outfmt->bpp) >> 3; |
| 2037 | out->pix.sizeimage = outfmt->planar ? |
| 2038 | (out->pix.height * out->pix.bytesperline * outfmt->bpp) >> 3 : |
| 2039 | out->pix.height * out->pix.bytesperline; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2040 | } |
| 2041 | EXPORT_SYMBOL_GPL(ipu_image_convert_adjust); |
| 2042 | |
| 2043 | /* |
| 2044 | * this is used by ipu_image_convert_prepare() to verify set input and |
| 2045 | * output images are valid before starting the conversion. Clients can |
| 2046 | * also call it before calling ipu_image_convert_prepare(). |
| 2047 | */ |
| 2048 | int ipu_image_convert_verify(struct ipu_image *in, struct ipu_image *out, |
| 2049 | enum ipu_rotate_mode rot_mode) |
| 2050 | { |
| 2051 | struct ipu_image testin, testout; |
| 2052 | |
| 2053 | testin = *in; |
| 2054 | testout = *out; |
| 2055 | |
| 2056 | ipu_image_convert_adjust(&testin, &testout, rot_mode); |
| 2057 | |
| 2058 | if (testin.pix.width != in->pix.width || |
| 2059 | testin.pix.height != in->pix.height || |
| 2060 | testout.pix.width != out->pix.width || |
| 2061 | testout.pix.height != out->pix.height) |
| 2062 | return -EINVAL; |
| 2063 | |
| 2064 | return 0; |
| 2065 | } |
| 2066 | EXPORT_SYMBOL_GPL(ipu_image_convert_verify); |
| 2067 | |
| 2068 | /* |
| 2069 | * Call ipu_image_convert_prepare() to prepare for the conversion of |
| 2070 | * given images and rotation mode. Returns a new conversion context. |
| 2071 | */ |
| 2072 | struct ipu_image_convert_ctx * |
| 2073 | ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task, |
| 2074 | struct ipu_image *in, struct ipu_image *out, |
| 2075 | enum ipu_rotate_mode rot_mode, |
| 2076 | ipu_image_convert_cb_t complete, |
| 2077 | void *complete_context) |
| 2078 | { |
| 2079 | struct ipu_image_convert_priv *priv = ipu->image_convert_priv; |
| 2080 | struct ipu_image_convert_image *s_image, *d_image; |
| 2081 | struct ipu_image_convert_chan *chan; |
| 2082 | struct ipu_image_convert_ctx *ctx; |
| 2083 | unsigned long flags; |
Philipp Zabel | f1ef14f | 2018-09-18 11:34:20 +0200 | [diff] [blame] | 2084 | unsigned int i; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2085 | bool get_res; |
| 2086 | int ret; |
| 2087 | |
| 2088 | if (!in || !out || !complete || |
| 2089 | (ic_task != IC_TASK_VIEWFINDER && |
| 2090 | ic_task != IC_TASK_POST_PROCESSOR)) |
| 2091 | return ERR_PTR(-EINVAL); |
| 2092 | |
| 2093 | /* verify the in/out images before continuing */ |
| 2094 | ret = ipu_image_convert_verify(in, out, rot_mode); |
| 2095 | if (ret) { |
| 2096 | dev_err(priv->ipu->dev, "%s: in/out formats invalid\n", |
| 2097 | __func__); |
| 2098 | return ERR_PTR(ret); |
| 2099 | } |
| 2100 | |
| 2101 | chan = &priv->chan[ic_task]; |
| 2102 | |
| 2103 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
| 2104 | if (!ctx) |
| 2105 | return ERR_PTR(-ENOMEM); |
| 2106 | |
| 2107 | dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p\n", __func__, |
| 2108 | chan->ic_task, ctx); |
| 2109 | |
| 2110 | ctx->chan = chan; |
| 2111 | init_completion(&ctx->aborted); |
| 2112 | |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 2113 | ctx->rot_mode = rot_mode; |
| 2114 | |
| 2115 | /* Sets ctx->in.num_rows/cols as well */ |
| 2116 | ret = calc_image_resize_coefficients(ctx, in, out); |
| 2117 | if (ret) |
| 2118 | goto out_free; |
| 2119 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2120 | s_image = &ctx->in; |
| 2121 | d_image = &ctx->out; |
| 2122 | |
| 2123 | /* set tiling and rotation */ |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2124 | if (ipu_rot_mode_is_irt(rot_mode)) { |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 2125 | d_image->num_rows = s_image->num_cols; |
| 2126 | d_image->num_cols = s_image->num_rows; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2127 | } else { |
Philipp Zabel | de2564c | 2019-08-13 13:42:58 +0200 | [diff] [blame] | 2128 | d_image->num_rows = s_image->num_rows; |
| 2129 | d_image->num_cols = s_image->num_cols; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2130 | } |
| 2131 | |
| 2132 | ctx->num_tiles = d_image->num_cols * d_image->num_rows; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2133 | |
| 2134 | ret = fill_image(ctx, s_image, in, IMAGE_CONVERT_IN); |
| 2135 | if (ret) |
| 2136 | goto out_free; |
| 2137 | ret = fill_image(ctx, d_image, out, IMAGE_CONVERT_OUT); |
| 2138 | if (ret) |
| 2139 | goto out_free; |
| 2140 | |
Philipp Zabel | 64fbae5 | 2018-09-18 11:34:15 +0200 | [diff] [blame] | 2141 | calc_out_tile_map(ctx); |
| 2142 | |
| 2143 | find_seams(ctx, s_image, d_image); |
| 2144 | |
Philipp Zabel | 5fb8b65 | 2019-08-13 14:39:50 +0200 | [diff] [blame] | 2145 | ret = calc_tile_dimensions(ctx, s_image); |
| 2146 | if (ret) |
| 2147 | goto out_free; |
| 2148 | |
Philipp Zabel | 26ddd03 | 2018-09-18 11:34:13 +0200 | [diff] [blame] | 2149 | ret = calc_tile_offsets(ctx, s_image); |
| 2150 | if (ret) |
| 2151 | goto out_free; |
| 2152 | |
| 2153 | calc_tile_dimensions(ctx, d_image); |
| 2154 | ret = calc_tile_offsets(ctx, d_image); |
| 2155 | if (ret) |
| 2156 | goto out_free; |
| 2157 | |
Philipp Zabel | 70b9b6b | 2018-09-18 11:34:10 +0200 | [diff] [blame] | 2158 | calc_tile_resize_coefficients(ctx); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2159 | |
Steve Longerbeam | f208b26 | 2019-05-21 18:03:14 -0700 | [diff] [blame] | 2160 | ret = ipu_ic_calc_csc(&ctx->csc, |
| 2161 | s_image->base.pix.ycbcr_enc, |
| 2162 | s_image->base.pix.quantization, |
| 2163 | ipu_pixelformat_to_colorspace(s_image->fmt->fourcc), |
| 2164 | d_image->base.pix.ycbcr_enc, |
| 2165 | d_image->base.pix.quantization, |
| 2166 | ipu_pixelformat_to_colorspace(d_image->fmt->fourcc)); |
| 2167 | if (ret) |
| 2168 | goto out_free; |
| 2169 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2170 | dump_format(ctx, s_image); |
| 2171 | dump_format(ctx, d_image); |
| 2172 | |
| 2173 | ctx->complete = complete; |
| 2174 | ctx->complete_context = complete_context; |
| 2175 | |
| 2176 | /* |
| 2177 | * Can we use double-buffering for this operation? If there is |
| 2178 | * only one tile (the whole image can be converted in a single |
| 2179 | * operation) there's no point in using double-buffering. Also, |
| 2180 | * the IPU's IDMAC channels allow only a single U and V plane |
| 2181 | * offset shared between both buffers, but these offsets change |
| 2182 | * for every tile, and therefore would have to be updated for |
| 2183 | * each buffer which is not possible. So double-buffering is |
| 2184 | * impossible when either the source or destination images are |
Philipp Zabel | f1ef14f | 2018-09-18 11:34:20 +0200 | [diff] [blame] | 2185 | * a planar format (YUV420, YUV422P, etc.). Further, differently |
| 2186 | * sized tiles or different resizing coefficients per tile |
| 2187 | * prevent double-buffering as well. |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2188 | */ |
| 2189 | ctx->double_buffering = (ctx->num_tiles > 1 && |
| 2190 | !s_image->fmt->planar && |
| 2191 | !d_image->fmt->planar); |
Philipp Zabel | f1ef14f | 2018-09-18 11:34:20 +0200 | [diff] [blame] | 2192 | for (i = 1; i < ctx->num_tiles; i++) { |
| 2193 | if (ctx->in.tile[i].width != ctx->in.tile[0].width || |
| 2194 | ctx->in.tile[i].height != ctx->in.tile[0].height || |
| 2195 | ctx->out.tile[i].width != ctx->out.tile[0].width || |
| 2196 | ctx->out.tile[i].height != ctx->out.tile[0].height) { |
| 2197 | ctx->double_buffering = false; |
| 2198 | break; |
| 2199 | } |
| 2200 | } |
| 2201 | for (i = 1; i < ctx->in.num_cols; i++) { |
| 2202 | if (ctx->resize_coeffs_h[i] != ctx->resize_coeffs_h[0]) { |
| 2203 | ctx->double_buffering = false; |
| 2204 | break; |
| 2205 | } |
| 2206 | } |
| 2207 | for (i = 1; i < ctx->in.num_rows; i++) { |
| 2208 | if (ctx->resize_coeffs_v[i] != ctx->resize_coeffs_v[0]) { |
| 2209 | ctx->double_buffering = false; |
| 2210 | break; |
| 2211 | } |
| 2212 | } |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2213 | |
| 2214 | if (ipu_rot_mode_is_irt(ctx->rot_mode)) { |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 2215 | unsigned long intermediate_size = d_image->tile[0].size; |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 2216 | |
| 2217 | for (i = 1; i < ctx->num_tiles; i++) { |
| 2218 | if (d_image->tile[i].size > intermediate_size) |
| 2219 | intermediate_size = d_image->tile[i].size; |
| 2220 | } |
| 2221 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2222 | ret = alloc_dma_buf(priv, &ctx->rot_intermediate[0], |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 2223 | intermediate_size); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2224 | if (ret) |
| 2225 | goto out_free; |
| 2226 | if (ctx->double_buffering) { |
| 2227 | ret = alloc_dma_buf(priv, |
| 2228 | &ctx->rot_intermediate[1], |
Philipp Zabel | dd65d2a | 2018-09-18 11:34:09 +0200 | [diff] [blame] | 2229 | intermediate_size); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2230 | if (ret) |
| 2231 | goto out_free_dmabuf0; |
| 2232 | } |
| 2233 | } |
| 2234 | |
| 2235 | spin_lock_irqsave(&chan->irqlock, flags); |
| 2236 | |
| 2237 | get_res = list_empty(&chan->ctx_list); |
| 2238 | |
| 2239 | list_add_tail(&ctx->list, &chan->ctx_list); |
| 2240 | |
| 2241 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 2242 | |
| 2243 | if (get_res) { |
| 2244 | ret = get_ipu_resources(chan); |
| 2245 | if (ret) |
| 2246 | goto out_free_dmabuf1; |
| 2247 | } |
| 2248 | |
| 2249 | return ctx; |
| 2250 | |
| 2251 | out_free_dmabuf1: |
| 2252 | free_dma_buf(priv, &ctx->rot_intermediate[1]); |
| 2253 | spin_lock_irqsave(&chan->irqlock, flags); |
| 2254 | list_del(&ctx->list); |
| 2255 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 2256 | out_free_dmabuf0: |
| 2257 | free_dma_buf(priv, &ctx->rot_intermediate[0]); |
| 2258 | out_free: |
| 2259 | kfree(ctx); |
| 2260 | return ERR_PTR(ret); |
| 2261 | } |
| 2262 | EXPORT_SYMBOL_GPL(ipu_image_convert_prepare); |
| 2263 | |
| 2264 | /* |
| 2265 | * Carry out a single image conversion run. Only the physaddr's of the input |
| 2266 | * and output image buffers are needed. The conversion context must have |
| 2267 | * been created previously with ipu_image_convert_prepare(). |
| 2268 | */ |
| 2269 | int ipu_image_convert_queue(struct ipu_image_convert_run *run) |
| 2270 | { |
| 2271 | struct ipu_image_convert_chan *chan; |
| 2272 | struct ipu_image_convert_priv *priv; |
| 2273 | struct ipu_image_convert_ctx *ctx; |
| 2274 | unsigned long flags; |
| 2275 | int ret = 0; |
| 2276 | |
| 2277 | if (!run || !run->ctx || !run->in_phys || !run->out_phys) |
| 2278 | return -EINVAL; |
| 2279 | |
| 2280 | ctx = run->ctx; |
| 2281 | chan = ctx->chan; |
| 2282 | priv = chan->priv; |
| 2283 | |
| 2284 | dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p run %p\n", __func__, |
| 2285 | chan->ic_task, ctx, run); |
| 2286 | |
| 2287 | INIT_LIST_HEAD(&run->list); |
| 2288 | |
| 2289 | spin_lock_irqsave(&chan->irqlock, flags); |
| 2290 | |
| 2291 | if (ctx->aborting) { |
| 2292 | ret = -EIO; |
| 2293 | goto unlock; |
| 2294 | } |
| 2295 | |
| 2296 | list_add_tail(&run->list, &chan->pending_q); |
| 2297 | |
| 2298 | if (!chan->current_run) { |
| 2299 | ret = do_run(run); |
| 2300 | if (ret) |
| 2301 | chan->current_run = NULL; |
| 2302 | } |
| 2303 | unlock: |
| 2304 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 2305 | return ret; |
| 2306 | } |
| 2307 | EXPORT_SYMBOL_GPL(ipu_image_convert_queue); |
| 2308 | |
| 2309 | /* Abort any active or pending conversions for this context */ |
Steve Longerbeam | 819bec3 | 2018-09-19 16:07:18 -0700 | [diff] [blame] | 2310 | static void __ipu_image_convert_abort(struct ipu_image_convert_ctx *ctx) |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2311 | { |
| 2312 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 2313 | struct ipu_image_convert_priv *priv = chan->priv; |
| 2314 | struct ipu_image_convert_run *run, *active_run, *tmp; |
| 2315 | unsigned long flags; |
| 2316 | int run_count, ret; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2317 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2318 | spin_lock_irqsave(&chan->irqlock, flags); |
| 2319 | |
| 2320 | /* move all remaining pending runs in this context to done_q */ |
| 2321 | list_for_each_entry_safe(run, tmp, &chan->pending_q, list) { |
| 2322 | if (run->ctx != ctx) |
| 2323 | continue; |
| 2324 | run->status = -EIO; |
| 2325 | list_move_tail(&run->list, &chan->done_q); |
| 2326 | } |
| 2327 | |
| 2328 | run_count = get_run_count(ctx, &chan->done_q); |
| 2329 | active_run = (chan->current_run && chan->current_run->ctx == ctx) ? |
| 2330 | chan->current_run : NULL; |
| 2331 | |
Steve Longerbeam | aa60b26 | 2018-09-19 16:17:15 -0700 | [diff] [blame] | 2332 | if (active_run) |
| 2333 | reinit_completion(&ctx->aborted); |
| 2334 | |
Steve Longerbeam | 819bec3 | 2018-09-19 16:07:18 -0700 | [diff] [blame] | 2335 | ctx->aborting = true; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2336 | |
| 2337 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 2338 | |
Steve Longerbeam | b288ada | 2018-09-19 16:20:43 -0700 | [diff] [blame] | 2339 | if (!run_count && !active_run) { |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2340 | dev_dbg(priv->ipu->dev, |
| 2341 | "%s: task %u: no abort needed for ctx %p\n", |
| 2342 | __func__, chan->ic_task, ctx); |
| 2343 | return; |
| 2344 | } |
| 2345 | |
Steve Longerbeam | 920340a | 2018-09-19 16:13:03 -0700 | [diff] [blame] | 2346 | if (!active_run) { |
| 2347 | empty_done_q(chan); |
| 2348 | return; |
| 2349 | } |
| 2350 | |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2351 | dev_dbg(priv->ipu->dev, |
Steve Longerbeam | 920340a | 2018-09-19 16:13:03 -0700 | [diff] [blame] | 2352 | "%s: task %u: wait for completion: %d runs\n", |
| 2353 | __func__, chan->ic_task, run_count); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2354 | |
| 2355 | ret = wait_for_completion_timeout(&ctx->aborted, |
| 2356 | msecs_to_jiffies(10000)); |
| 2357 | if (ret == 0) { |
| 2358 | dev_warn(priv->ipu->dev, "%s: timeout\n", __func__); |
| 2359 | force_abort(ctx); |
| 2360 | } |
Steve Longerbeam | 819bec3 | 2018-09-19 16:07:18 -0700 | [diff] [blame] | 2361 | } |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2362 | |
Steve Longerbeam | 819bec3 | 2018-09-19 16:07:18 -0700 | [diff] [blame] | 2363 | void ipu_image_convert_abort(struct ipu_image_convert_ctx *ctx) |
| 2364 | { |
| 2365 | __ipu_image_convert_abort(ctx); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2366 | ctx->aborting = false; |
| 2367 | } |
| 2368 | EXPORT_SYMBOL_GPL(ipu_image_convert_abort); |
| 2369 | |
| 2370 | /* Unprepare image conversion context */ |
| 2371 | void ipu_image_convert_unprepare(struct ipu_image_convert_ctx *ctx) |
| 2372 | { |
| 2373 | struct ipu_image_convert_chan *chan = ctx->chan; |
| 2374 | struct ipu_image_convert_priv *priv = chan->priv; |
| 2375 | unsigned long flags; |
| 2376 | bool put_res; |
| 2377 | |
| 2378 | /* make sure no runs are hanging around */ |
Steve Longerbeam | 819bec3 | 2018-09-19 16:07:18 -0700 | [diff] [blame] | 2379 | __ipu_image_convert_abort(ctx); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2380 | |
| 2381 | dev_dbg(priv->ipu->dev, "%s: task %u: removing ctx %p\n", __func__, |
| 2382 | chan->ic_task, ctx); |
| 2383 | |
| 2384 | spin_lock_irqsave(&chan->irqlock, flags); |
| 2385 | |
| 2386 | list_del(&ctx->list); |
| 2387 | |
| 2388 | put_res = list_empty(&chan->ctx_list); |
| 2389 | |
| 2390 | spin_unlock_irqrestore(&chan->irqlock, flags); |
| 2391 | |
| 2392 | if (put_res) |
| 2393 | release_ipu_resources(chan); |
| 2394 | |
| 2395 | free_dma_buf(priv, &ctx->rot_intermediate[1]); |
| 2396 | free_dma_buf(priv, &ctx->rot_intermediate[0]); |
| 2397 | |
| 2398 | kfree(ctx); |
| 2399 | } |
| 2400 | EXPORT_SYMBOL_GPL(ipu_image_convert_unprepare); |
| 2401 | |
| 2402 | /* |
| 2403 | * "Canned" asynchronous single image conversion. Allocates and returns |
| 2404 | * a new conversion run. On successful return the caller must free the |
| 2405 | * run and call ipu_image_convert_unprepare() after conversion completes. |
| 2406 | */ |
| 2407 | struct ipu_image_convert_run * |
| 2408 | ipu_image_convert(struct ipu_soc *ipu, enum ipu_ic_task ic_task, |
| 2409 | struct ipu_image *in, struct ipu_image *out, |
| 2410 | enum ipu_rotate_mode rot_mode, |
| 2411 | ipu_image_convert_cb_t complete, |
| 2412 | void *complete_context) |
| 2413 | { |
| 2414 | struct ipu_image_convert_ctx *ctx; |
| 2415 | struct ipu_image_convert_run *run; |
| 2416 | int ret; |
| 2417 | |
| 2418 | ctx = ipu_image_convert_prepare(ipu, ic_task, in, out, rot_mode, |
| 2419 | complete, complete_context); |
| 2420 | if (IS_ERR(ctx)) |
Wei Yongjun | 4ad3e92c | 2016-09-21 15:12:24 +0000 | [diff] [blame] | 2421 | return ERR_CAST(ctx); |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2422 | |
| 2423 | run = kzalloc(sizeof(*run), GFP_KERNEL); |
| 2424 | if (!run) { |
| 2425 | ipu_image_convert_unprepare(ctx); |
| 2426 | return ERR_PTR(-ENOMEM); |
| 2427 | } |
| 2428 | |
| 2429 | run->ctx = ctx; |
| 2430 | run->in_phys = in->phys0; |
| 2431 | run->out_phys = out->phys0; |
| 2432 | |
| 2433 | ret = ipu_image_convert_queue(run); |
| 2434 | if (ret) { |
| 2435 | ipu_image_convert_unprepare(ctx); |
| 2436 | kfree(run); |
| 2437 | return ERR_PTR(ret); |
| 2438 | } |
| 2439 | |
| 2440 | return run; |
| 2441 | } |
| 2442 | EXPORT_SYMBOL_GPL(ipu_image_convert); |
| 2443 | |
| 2444 | /* "Canned" synchronous single image conversion */ |
| 2445 | static void image_convert_sync_complete(struct ipu_image_convert_run *run, |
| 2446 | void *data) |
| 2447 | { |
| 2448 | struct completion *comp = data; |
| 2449 | |
| 2450 | complete(comp); |
| 2451 | } |
| 2452 | |
| 2453 | int ipu_image_convert_sync(struct ipu_soc *ipu, enum ipu_ic_task ic_task, |
| 2454 | struct ipu_image *in, struct ipu_image *out, |
| 2455 | enum ipu_rotate_mode rot_mode) |
| 2456 | { |
| 2457 | struct ipu_image_convert_run *run; |
| 2458 | struct completion comp; |
| 2459 | int ret; |
| 2460 | |
| 2461 | init_completion(&comp); |
| 2462 | |
| 2463 | run = ipu_image_convert(ipu, ic_task, in, out, rot_mode, |
| 2464 | image_convert_sync_complete, &comp); |
| 2465 | if (IS_ERR(run)) |
| 2466 | return PTR_ERR(run); |
| 2467 | |
| 2468 | ret = wait_for_completion_timeout(&comp, msecs_to_jiffies(10000)); |
| 2469 | ret = (ret == 0) ? -ETIMEDOUT : 0; |
| 2470 | |
| 2471 | ipu_image_convert_unprepare(run->ctx); |
| 2472 | kfree(run); |
| 2473 | |
| 2474 | return ret; |
| 2475 | } |
| 2476 | EXPORT_SYMBOL_GPL(ipu_image_convert_sync); |
| 2477 | |
| 2478 | int ipu_image_convert_init(struct ipu_soc *ipu, struct device *dev) |
| 2479 | { |
| 2480 | struct ipu_image_convert_priv *priv; |
| 2481 | int i; |
| 2482 | |
| 2483 | priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); |
| 2484 | if (!priv) |
| 2485 | return -ENOMEM; |
| 2486 | |
| 2487 | ipu->image_convert_priv = priv; |
| 2488 | priv->ipu = ipu; |
| 2489 | |
| 2490 | for (i = 0; i < IC_NUM_TASKS; i++) { |
| 2491 | struct ipu_image_convert_chan *chan = &priv->chan[i]; |
| 2492 | |
| 2493 | chan->ic_task = i; |
| 2494 | chan->priv = priv; |
| 2495 | chan->dma_ch = &image_convert_dma_chan[i]; |
Steve Longerbeam | dd81d82 | 2020-06-25 11:13:37 -0700 | [diff] [blame] | 2496 | chan->in_eof_irq = -1; |
| 2497 | chan->rot_in_eof_irq = -1; |
Steve Longerbeam | cd98e85 | 2016-09-17 12:33:58 -0700 | [diff] [blame] | 2498 | chan->out_eof_irq = -1; |
| 2499 | chan->rot_out_eof_irq = -1; |
| 2500 | |
| 2501 | spin_lock_init(&chan->irqlock); |
| 2502 | INIT_LIST_HEAD(&chan->ctx_list); |
| 2503 | INIT_LIST_HEAD(&chan->pending_q); |
| 2504 | INIT_LIST_HEAD(&chan->done_q); |
| 2505 | } |
| 2506 | |
| 2507 | return 0; |
| 2508 | } |
| 2509 | |
| 2510 | void ipu_image_convert_exit(struct ipu_soc *ipu) |
| 2511 | { |
| 2512 | } |