1c942fddfSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later 2cd98e85aSSteve Longerbeam /* 3cd98e85aSSteve Longerbeam * Copyright (C) 2012-2016 Mentor Graphics Inc. 4cd98e85aSSteve Longerbeam * 5cd98e85aSSteve Longerbeam * Queued image conversion support, with tiling and rotation. 6cd98e85aSSteve Longerbeam */ 7cd98e85aSSteve Longerbeam 8cd98e85aSSteve Longerbeam #include <linux/interrupt.h> 9cd98e85aSSteve Longerbeam #include <linux/dma-mapping.h> 10cd98e85aSSteve Longerbeam #include <video/imx-ipu-image-convert.h> 11cd98e85aSSteve Longerbeam #include "ipu-prv.h" 12cd98e85aSSteve Longerbeam 13cd98e85aSSteve Longerbeam /* 14cd98e85aSSteve Longerbeam * The IC Resizer has a restriction that the output frame from the 15cd98e85aSSteve Longerbeam * resizer must be 1024 or less in both width (pixels) and height 16cd98e85aSSteve Longerbeam * (lines). 17cd98e85aSSteve Longerbeam * 18cd98e85aSSteve Longerbeam * The image converter attempts to split up a conversion when 19cd98e85aSSteve Longerbeam * the desired output (converted) frame resolution exceeds the 20cd98e85aSSteve Longerbeam * IC resizer limit of 1024 in either dimension. 21cd98e85aSSteve Longerbeam * 22cd98e85aSSteve Longerbeam * If either dimension of the output frame exceeds the limit, the 23cd98e85aSSteve Longerbeam * dimension is split into 1, 2, or 4 equal stripes, for a maximum 24cd98e85aSSteve Longerbeam * of 4*4 or 16 tiles. A conversion is then carried out for each 25cd98e85aSSteve Longerbeam * tile (but taking care to pass the full frame stride length to 26cd98e85aSSteve Longerbeam * the DMA channel's parameter memory!). IDMA double-buffering is used 27cd98e85aSSteve Longerbeam * to convert each tile back-to-back when possible (see note below 28cd98e85aSSteve Longerbeam * when double_buffering boolean is set). 29cd98e85aSSteve Longerbeam * 30cd98e85aSSteve Longerbeam * Note that the input frame must be split up into the same number 31e46279f0SPhilipp Zabel * of tiles as the output frame: 32cd98e85aSSteve Longerbeam * 33e46279f0SPhilipp Zabel * +---------+-----+ 34e46279f0SPhilipp Zabel * +-----+---+ | A | B | 35e46279f0SPhilipp Zabel * | A | B | | | | 36e46279f0SPhilipp Zabel * +-----+---+ --> +---------+-----+ 37e46279f0SPhilipp Zabel * | C | D | | C | D | 38e46279f0SPhilipp Zabel * +-----+---+ | | | 39e46279f0SPhilipp Zabel * +---------+-----+ 40e46279f0SPhilipp Zabel * 41e46279f0SPhilipp Zabel * Clockwise 90° rotations are handled by first rescaling into a 42e46279f0SPhilipp Zabel * reusable temporary tile buffer and then rotating with the 8x8 43e46279f0SPhilipp Zabel * block rotator, writing to the correct destination: 44e46279f0SPhilipp Zabel * 45e46279f0SPhilipp Zabel * +-----+-----+ 46e46279f0SPhilipp Zabel * | | | 47e46279f0SPhilipp Zabel * +-----+---+ +---------+ | C | A | 48e46279f0SPhilipp Zabel * | A | B | | A,B, | | | | | 49e46279f0SPhilipp Zabel * +-----+---+ --> | C,D | | --> | | | 50e46279f0SPhilipp Zabel * | C | D | +---------+ +-----+-----+ 51e46279f0SPhilipp Zabel * +-----+---+ | D | B | 52e46279f0SPhilipp Zabel * | | | 53e46279f0SPhilipp Zabel * +-----+-----+ 54e46279f0SPhilipp Zabel * 55e46279f0SPhilipp Zabel * If the 8x8 block rotator is used, horizontal or vertical flipping 56e46279f0SPhilipp Zabel * is done during the rotation step, otherwise flipping is done 57e46279f0SPhilipp Zabel * during the scaling step. 58e46279f0SPhilipp Zabel * With rotation or flipping, tile order changes between input and 59e46279f0SPhilipp Zabel * output image. Tiles are numbered row major from top left to bottom 60e46279f0SPhilipp Zabel * right for both input and output image. 61cd98e85aSSteve Longerbeam */ 62cd98e85aSSteve Longerbeam 63cd98e85aSSteve Longerbeam #define MAX_STRIPES_W 4 64cd98e85aSSteve Longerbeam #define MAX_STRIPES_H 4 65cd98e85aSSteve Longerbeam #define MAX_TILES (MAX_STRIPES_W * MAX_STRIPES_H) 66cd98e85aSSteve Longerbeam 67cd98e85aSSteve Longerbeam #define MIN_W 16 68cd98e85aSSteve Longerbeam #define MIN_H 8 69cd98e85aSSteve Longerbeam #define MAX_W 4096 70cd98e85aSSteve Longerbeam #define MAX_H 4096 71cd98e85aSSteve Longerbeam 72cd98e85aSSteve Longerbeam enum ipu_image_convert_type { 73cd98e85aSSteve Longerbeam IMAGE_CONVERT_IN = 0, 74cd98e85aSSteve Longerbeam IMAGE_CONVERT_OUT, 75cd98e85aSSteve Longerbeam }; 76cd98e85aSSteve Longerbeam 77cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf { 78cd98e85aSSteve Longerbeam void *virt; 79cd98e85aSSteve Longerbeam dma_addr_t phys; 80cd98e85aSSteve Longerbeam unsigned long len; 81cd98e85aSSteve Longerbeam }; 82cd98e85aSSteve Longerbeam 83cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_chan { 84cd98e85aSSteve Longerbeam int in; 85cd98e85aSSteve Longerbeam int out; 86cd98e85aSSteve Longerbeam int rot_in; 87cd98e85aSSteve Longerbeam int rot_out; 88cd98e85aSSteve Longerbeam int vdi_in_p; 89cd98e85aSSteve Longerbeam int vdi_in; 90cd98e85aSSteve Longerbeam int vdi_in_n; 91cd98e85aSSteve Longerbeam }; 92cd98e85aSSteve Longerbeam 93cd98e85aSSteve Longerbeam /* dimensions of one tile */ 94cd98e85aSSteve Longerbeam struct ipu_image_tile { 95cd98e85aSSteve Longerbeam u32 width; 96cd98e85aSSteve Longerbeam u32 height; 97571dd82cSPhilipp Zabel u32 left; 98571dd82cSPhilipp Zabel u32 top; 99cd98e85aSSteve Longerbeam /* size and strides are in bytes */ 100cd98e85aSSteve Longerbeam u32 size; 101cd98e85aSSteve Longerbeam u32 stride; 102cd98e85aSSteve Longerbeam u32 rot_stride; 103cd98e85aSSteve Longerbeam /* start Y or packed offset of this tile */ 104cd98e85aSSteve Longerbeam u32 offset; 105cd98e85aSSteve Longerbeam /* offset from start to tile in U plane, for planar formats */ 106cd98e85aSSteve Longerbeam u32 u_off; 107cd98e85aSSteve Longerbeam /* offset from start to tile in V plane, for planar formats */ 108cd98e85aSSteve Longerbeam u32 v_off; 109cd98e85aSSteve Longerbeam }; 110cd98e85aSSteve Longerbeam 111cd98e85aSSteve Longerbeam struct ipu_image_convert_image { 112cd98e85aSSteve Longerbeam struct ipu_image base; 113cd98e85aSSteve Longerbeam enum ipu_image_convert_type type; 114cd98e85aSSteve Longerbeam 115cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt; 116cd98e85aSSteve Longerbeam unsigned int stride; 117cd98e85aSSteve Longerbeam 118cd98e85aSSteve Longerbeam /* # of rows (horizontal stripes) if dest height is > 1024 */ 119cd98e85aSSteve Longerbeam unsigned int num_rows; 120cd98e85aSSteve Longerbeam /* # of columns (vertical stripes) if dest width is > 1024 */ 121cd98e85aSSteve Longerbeam unsigned int num_cols; 122cd98e85aSSteve Longerbeam 123cd98e85aSSteve Longerbeam struct ipu_image_tile tile[MAX_TILES]; 124cd98e85aSSteve Longerbeam }; 125cd98e85aSSteve Longerbeam 126cd98e85aSSteve Longerbeam struct ipu_image_pixfmt { 127cd98e85aSSteve Longerbeam u32 fourcc; /* V4L2 fourcc */ 128cd98e85aSSteve Longerbeam int bpp; /* total bpp */ 129cd98e85aSSteve Longerbeam int uv_width_dec; /* decimation in width for U/V planes */ 130cd98e85aSSteve Longerbeam int uv_height_dec; /* decimation in height for U/V planes */ 131cd98e85aSSteve Longerbeam bool planar; /* planar format */ 132cd98e85aSSteve Longerbeam bool uv_swapped; /* U and V planes are swapped */ 133cd98e85aSSteve Longerbeam bool uv_packed; /* partial planar (U and V in same plane) */ 134cd98e85aSSteve Longerbeam }; 135cd98e85aSSteve Longerbeam 136cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx; 137cd98e85aSSteve Longerbeam struct ipu_image_convert_chan; 138cd98e85aSSteve Longerbeam struct ipu_image_convert_priv; 139cd98e85aSSteve Longerbeam 140cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx { 141cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan; 142cd98e85aSSteve Longerbeam 143cd98e85aSSteve Longerbeam ipu_image_convert_cb_t complete; 144cd98e85aSSteve Longerbeam void *complete_context; 145cd98e85aSSteve Longerbeam 146cd98e85aSSteve Longerbeam /* Source/destination image data and rotation mode */ 147cd98e85aSSteve Longerbeam struct ipu_image_convert_image in; 148cd98e85aSSteve Longerbeam struct ipu_image_convert_image out; 149f208b26eSSteve Longerbeam struct ipu_ic_csc csc; 150cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode; 15170b9b6b3SPhilipp Zabel u32 downsize_coeff_h; 15270b9b6b3SPhilipp Zabel u32 downsize_coeff_v; 15370b9b6b3SPhilipp Zabel u32 image_resize_coeff_h; 15470b9b6b3SPhilipp Zabel u32 image_resize_coeff_v; 15570b9b6b3SPhilipp Zabel u32 resize_coeffs_h[MAX_STRIPES_W]; 15670b9b6b3SPhilipp Zabel u32 resize_coeffs_v[MAX_STRIPES_H]; 157cd98e85aSSteve Longerbeam 158cd98e85aSSteve Longerbeam /* intermediate buffer for rotation */ 159cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf rot_intermediate[2]; 160cd98e85aSSteve Longerbeam 161cd98e85aSSteve Longerbeam /* current buffer number for double buffering */ 162cd98e85aSSteve Longerbeam int cur_buf_num; 163cd98e85aSSteve Longerbeam 164cd98e85aSSteve Longerbeam bool aborting; 165cd98e85aSSteve Longerbeam struct completion aborted; 166cd98e85aSSteve Longerbeam 167cd98e85aSSteve Longerbeam /* can we use double-buffering for this conversion operation? */ 168cd98e85aSSteve Longerbeam bool double_buffering; 169cd98e85aSSteve Longerbeam /* num_rows * num_cols */ 170cd98e85aSSteve Longerbeam unsigned int num_tiles; 171cd98e85aSSteve Longerbeam /* next tile to process */ 172cd98e85aSSteve Longerbeam unsigned int next_tile; 173cd98e85aSSteve Longerbeam /* where to place converted tile in dest image */ 174cd98e85aSSteve Longerbeam unsigned int out_tile_map[MAX_TILES]; 175cd98e85aSSteve Longerbeam 176cd98e85aSSteve Longerbeam struct list_head list; 177cd98e85aSSteve Longerbeam }; 178cd98e85aSSteve Longerbeam 179cd98e85aSSteve Longerbeam struct ipu_image_convert_chan { 180cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv; 181cd98e85aSSteve Longerbeam 182cd98e85aSSteve Longerbeam enum ipu_ic_task ic_task; 183cd98e85aSSteve Longerbeam const struct ipu_image_convert_dma_chan *dma_ch; 184cd98e85aSSteve Longerbeam 185cd98e85aSSteve Longerbeam struct ipu_ic *ic; 186cd98e85aSSteve Longerbeam struct ipuv3_channel *in_chan; 187cd98e85aSSteve Longerbeam struct ipuv3_channel *out_chan; 188cd98e85aSSteve Longerbeam struct ipuv3_channel *rotation_in_chan; 189cd98e85aSSteve Longerbeam struct ipuv3_channel *rotation_out_chan; 190cd98e85aSSteve Longerbeam 191cd98e85aSSteve Longerbeam /* the IPU end-of-frame irqs */ 192cd98e85aSSteve Longerbeam int out_eof_irq; 193cd98e85aSSteve Longerbeam int rot_out_eof_irq; 194cd98e85aSSteve Longerbeam 195cd98e85aSSteve Longerbeam spinlock_t irqlock; 196cd98e85aSSteve Longerbeam 197cd98e85aSSteve Longerbeam /* list of convert contexts */ 198cd98e85aSSteve Longerbeam struct list_head ctx_list; 199cd98e85aSSteve Longerbeam /* queue of conversion runs */ 200cd98e85aSSteve Longerbeam struct list_head pending_q; 201cd98e85aSSteve Longerbeam /* queue of completed runs */ 202cd98e85aSSteve Longerbeam struct list_head done_q; 203cd98e85aSSteve Longerbeam 204cd98e85aSSteve Longerbeam /* the current conversion run */ 205cd98e85aSSteve Longerbeam struct ipu_image_convert_run *current_run; 206cd98e85aSSteve Longerbeam }; 207cd98e85aSSteve Longerbeam 208cd98e85aSSteve Longerbeam struct ipu_image_convert_priv { 209cd98e85aSSteve Longerbeam struct ipu_image_convert_chan chan[IC_NUM_TASKS]; 210cd98e85aSSteve Longerbeam struct ipu_soc *ipu; 211cd98e85aSSteve Longerbeam }; 212cd98e85aSSteve Longerbeam 213cd98e85aSSteve Longerbeam static const struct ipu_image_convert_dma_chan 214cd98e85aSSteve Longerbeam image_convert_dma_chan[IC_NUM_TASKS] = { 215cd98e85aSSteve Longerbeam [IC_TASK_VIEWFINDER] = { 216cd98e85aSSteve Longerbeam .in = IPUV3_CHANNEL_MEM_IC_PRP_VF, 217cd98e85aSSteve Longerbeam .out = IPUV3_CHANNEL_IC_PRP_VF_MEM, 218cd98e85aSSteve Longerbeam .rot_in = IPUV3_CHANNEL_MEM_ROT_VF, 219cd98e85aSSteve Longerbeam .rot_out = IPUV3_CHANNEL_ROT_VF_MEM, 220cd98e85aSSteve Longerbeam .vdi_in_p = IPUV3_CHANNEL_MEM_VDI_PREV, 221cd98e85aSSteve Longerbeam .vdi_in = IPUV3_CHANNEL_MEM_VDI_CUR, 222cd98e85aSSteve Longerbeam .vdi_in_n = IPUV3_CHANNEL_MEM_VDI_NEXT, 223cd98e85aSSteve Longerbeam }, 224cd98e85aSSteve Longerbeam [IC_TASK_POST_PROCESSOR] = { 225cd98e85aSSteve Longerbeam .in = IPUV3_CHANNEL_MEM_IC_PP, 226cd98e85aSSteve Longerbeam .out = IPUV3_CHANNEL_IC_PP_MEM, 227cd98e85aSSteve Longerbeam .rot_in = IPUV3_CHANNEL_MEM_ROT_PP, 228cd98e85aSSteve Longerbeam .rot_out = IPUV3_CHANNEL_ROT_PP_MEM, 229cd98e85aSSteve Longerbeam }, 230cd98e85aSSteve Longerbeam }; 231cd98e85aSSteve Longerbeam 232cd98e85aSSteve Longerbeam static const struct ipu_image_pixfmt image_convert_formats[] = { 233cd98e85aSSteve Longerbeam { 234cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_RGB565, 235cd98e85aSSteve Longerbeam .bpp = 16, 236cd98e85aSSteve Longerbeam }, { 237cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_RGB24, 238cd98e85aSSteve Longerbeam .bpp = 24, 239cd98e85aSSteve Longerbeam }, { 240cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_BGR24, 241cd98e85aSSteve Longerbeam .bpp = 24, 242cd98e85aSSteve Longerbeam }, { 243cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_RGB32, 244cd98e85aSSteve Longerbeam .bpp = 32, 245cd98e85aSSteve Longerbeam }, { 246cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_BGR32, 247cd98e85aSSteve Longerbeam .bpp = 32, 248cd98e85aSSteve Longerbeam }, { 2495c41bb60SPhilipp Zabel .fourcc = V4L2_PIX_FMT_XRGB32, 2505c41bb60SPhilipp Zabel .bpp = 32, 2515c41bb60SPhilipp Zabel }, { 2525c41bb60SPhilipp Zabel .fourcc = V4L2_PIX_FMT_XBGR32, 2535c41bb60SPhilipp Zabel .bpp = 32, 2545c41bb60SPhilipp Zabel }, { 2559b75651fSPhilipp Zabel .fourcc = V4L2_PIX_FMT_BGRX32, 2569b75651fSPhilipp Zabel .bpp = 32, 2579b75651fSPhilipp Zabel }, { 2589b75651fSPhilipp Zabel .fourcc = V4L2_PIX_FMT_RGBX32, 2599b75651fSPhilipp Zabel .bpp = 32, 2609b75651fSPhilipp Zabel }, { 261cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YUYV, 262cd98e85aSSteve Longerbeam .bpp = 16, 263cd98e85aSSteve Longerbeam .uv_width_dec = 2, 264cd98e85aSSteve Longerbeam .uv_height_dec = 1, 265cd98e85aSSteve Longerbeam }, { 266cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_UYVY, 267cd98e85aSSteve Longerbeam .bpp = 16, 268cd98e85aSSteve Longerbeam .uv_width_dec = 2, 269cd98e85aSSteve Longerbeam .uv_height_dec = 1, 270cd98e85aSSteve Longerbeam }, { 271cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YUV420, 272cd98e85aSSteve Longerbeam .bpp = 12, 273cd98e85aSSteve Longerbeam .planar = true, 274cd98e85aSSteve Longerbeam .uv_width_dec = 2, 275cd98e85aSSteve Longerbeam .uv_height_dec = 2, 276cd98e85aSSteve Longerbeam }, { 277cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YVU420, 278cd98e85aSSteve Longerbeam .bpp = 12, 279cd98e85aSSteve Longerbeam .planar = true, 280cd98e85aSSteve Longerbeam .uv_width_dec = 2, 281cd98e85aSSteve Longerbeam .uv_height_dec = 2, 282cd98e85aSSteve Longerbeam .uv_swapped = true, 283cd98e85aSSteve Longerbeam }, { 284cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_NV12, 285cd98e85aSSteve Longerbeam .bpp = 12, 286cd98e85aSSteve Longerbeam .planar = true, 287cd98e85aSSteve Longerbeam .uv_width_dec = 2, 288cd98e85aSSteve Longerbeam .uv_height_dec = 2, 289cd98e85aSSteve Longerbeam .uv_packed = true, 290cd98e85aSSteve Longerbeam }, { 291cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YUV422P, 292cd98e85aSSteve Longerbeam .bpp = 16, 293cd98e85aSSteve Longerbeam .planar = true, 294cd98e85aSSteve Longerbeam .uv_width_dec = 2, 295cd98e85aSSteve Longerbeam .uv_height_dec = 1, 296cd98e85aSSteve Longerbeam }, { 297cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_NV16, 298cd98e85aSSteve Longerbeam .bpp = 16, 299cd98e85aSSteve Longerbeam .planar = true, 300cd98e85aSSteve Longerbeam .uv_width_dec = 2, 301cd98e85aSSteve Longerbeam .uv_height_dec = 1, 302cd98e85aSSteve Longerbeam .uv_packed = true, 303cd98e85aSSteve Longerbeam }, 304cd98e85aSSteve Longerbeam }; 305cd98e85aSSteve Longerbeam 306cd98e85aSSteve Longerbeam static const struct ipu_image_pixfmt *get_format(u32 fourcc) 307cd98e85aSSteve Longerbeam { 308cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *ret = NULL; 309cd98e85aSSteve Longerbeam unsigned int i; 310cd98e85aSSteve Longerbeam 311cd98e85aSSteve Longerbeam for (i = 0; i < ARRAY_SIZE(image_convert_formats); i++) { 312cd98e85aSSteve Longerbeam if (image_convert_formats[i].fourcc == fourcc) { 313cd98e85aSSteve Longerbeam ret = &image_convert_formats[i]; 314cd98e85aSSteve Longerbeam break; 315cd98e85aSSteve Longerbeam } 316cd98e85aSSteve Longerbeam } 317cd98e85aSSteve Longerbeam 318cd98e85aSSteve Longerbeam return ret; 319cd98e85aSSteve Longerbeam } 320cd98e85aSSteve Longerbeam 321cd98e85aSSteve Longerbeam static void dump_format(struct ipu_image_convert_ctx *ctx, 322cd98e85aSSteve Longerbeam struct ipu_image_convert_image *ic_image) 323cd98e85aSSteve Longerbeam { 324cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 325cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 326cd98e85aSSteve Longerbeam 327cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 328a3f42419SPhilipp Zabel "task %u: ctx %p: %s format: %dx%d (%dx%d tiles), %c%c%c%c\n", 329cd98e85aSSteve Longerbeam chan->ic_task, ctx, 330cd98e85aSSteve Longerbeam ic_image->type == IMAGE_CONVERT_OUT ? "Output" : "Input", 331cd98e85aSSteve Longerbeam ic_image->base.pix.width, ic_image->base.pix.height, 332cd98e85aSSteve Longerbeam ic_image->num_cols, ic_image->num_rows, 333cd98e85aSSteve Longerbeam ic_image->fmt->fourcc & 0xff, 334cd98e85aSSteve Longerbeam (ic_image->fmt->fourcc >> 8) & 0xff, 335cd98e85aSSteve Longerbeam (ic_image->fmt->fourcc >> 16) & 0xff, 336cd98e85aSSteve Longerbeam (ic_image->fmt->fourcc >> 24) & 0xff); 337cd98e85aSSteve Longerbeam } 338cd98e85aSSteve Longerbeam 339cd98e85aSSteve Longerbeam int ipu_image_convert_enum_format(int index, u32 *fourcc) 340cd98e85aSSteve Longerbeam { 341cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt; 342cd98e85aSSteve Longerbeam 343cd98e85aSSteve Longerbeam if (index >= (int)ARRAY_SIZE(image_convert_formats)) 344cd98e85aSSteve Longerbeam return -EINVAL; 345cd98e85aSSteve Longerbeam 346cd98e85aSSteve Longerbeam /* Format found */ 347cd98e85aSSteve Longerbeam fmt = &image_convert_formats[index]; 348cd98e85aSSteve Longerbeam *fourcc = fmt->fourcc; 349cd98e85aSSteve Longerbeam return 0; 350cd98e85aSSteve Longerbeam } 351cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_enum_format); 352cd98e85aSSteve Longerbeam 353cd98e85aSSteve Longerbeam static void free_dma_buf(struct ipu_image_convert_priv *priv, 354cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf *buf) 355cd98e85aSSteve Longerbeam { 356cd98e85aSSteve Longerbeam if (buf->virt) 357cd98e85aSSteve Longerbeam dma_free_coherent(priv->ipu->dev, 358cd98e85aSSteve Longerbeam buf->len, buf->virt, buf->phys); 359cd98e85aSSteve Longerbeam buf->virt = NULL; 360cd98e85aSSteve Longerbeam buf->phys = 0; 361cd98e85aSSteve Longerbeam } 362cd98e85aSSteve Longerbeam 363cd98e85aSSteve Longerbeam static int alloc_dma_buf(struct ipu_image_convert_priv *priv, 364cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf *buf, 365cd98e85aSSteve Longerbeam int size) 366cd98e85aSSteve Longerbeam { 367cd98e85aSSteve Longerbeam buf->len = PAGE_ALIGN(size); 368cd98e85aSSteve Longerbeam buf->virt = dma_alloc_coherent(priv->ipu->dev, buf->len, &buf->phys, 369cd98e85aSSteve Longerbeam GFP_DMA | GFP_KERNEL); 370cd98e85aSSteve Longerbeam if (!buf->virt) { 371cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "failed to alloc dma buffer\n"); 372cd98e85aSSteve Longerbeam return -ENOMEM; 373cd98e85aSSteve Longerbeam } 374cd98e85aSSteve Longerbeam 375cd98e85aSSteve Longerbeam return 0; 376cd98e85aSSteve Longerbeam } 377cd98e85aSSteve Longerbeam 378cd98e85aSSteve Longerbeam static inline int num_stripes(int dim) 379cd98e85aSSteve Longerbeam { 380815b02e3SPhilipp Zabel return (dim - 1) / 1024 + 1; 381cd98e85aSSteve Longerbeam } 382cd98e85aSSteve Longerbeam 38370b9b6b3SPhilipp Zabel /* 38470b9b6b3SPhilipp Zabel * Calculate downsizing coefficients, which are the same for all tiles, 38570b9b6b3SPhilipp Zabel * and bilinear resizing coefficients, which are used to find the best 38670b9b6b3SPhilipp Zabel * seam positions. 38770b9b6b3SPhilipp Zabel */ 38870b9b6b3SPhilipp Zabel static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx, 38970b9b6b3SPhilipp Zabel struct ipu_image *in, 39070b9b6b3SPhilipp Zabel struct ipu_image *out) 39170b9b6b3SPhilipp Zabel { 39270b9b6b3SPhilipp Zabel u32 downsized_width = in->rect.width; 39370b9b6b3SPhilipp Zabel u32 downsized_height = in->rect.height; 39470b9b6b3SPhilipp Zabel u32 downsize_coeff_v = 0; 39570b9b6b3SPhilipp Zabel u32 downsize_coeff_h = 0; 39670b9b6b3SPhilipp Zabel u32 resized_width = out->rect.width; 39770b9b6b3SPhilipp Zabel u32 resized_height = out->rect.height; 39870b9b6b3SPhilipp Zabel u32 resize_coeff_h; 39970b9b6b3SPhilipp Zabel u32 resize_coeff_v; 40070b9b6b3SPhilipp Zabel 40170b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 40270b9b6b3SPhilipp Zabel resized_width = out->rect.height; 40370b9b6b3SPhilipp Zabel resized_height = out->rect.width; 40470b9b6b3SPhilipp Zabel } 40570b9b6b3SPhilipp Zabel 40670b9b6b3SPhilipp Zabel /* Do not let invalid input lead to an endless loop below */ 40770b9b6b3SPhilipp Zabel if (WARN_ON(resized_width == 0 || resized_height == 0)) 40870b9b6b3SPhilipp Zabel return -EINVAL; 40970b9b6b3SPhilipp Zabel 410912bbf7eSSteve Longerbeam while (downsized_width > 1024 || 411912bbf7eSSteve Longerbeam downsized_width >= resized_width * 2) { 41270b9b6b3SPhilipp Zabel downsized_width >>= 1; 41370b9b6b3SPhilipp Zabel downsize_coeff_h++; 41470b9b6b3SPhilipp Zabel } 41570b9b6b3SPhilipp Zabel 416912bbf7eSSteve Longerbeam while (downsized_height > 1024 || 417912bbf7eSSteve Longerbeam downsized_height >= resized_height * 2) { 41870b9b6b3SPhilipp Zabel downsized_height >>= 1; 41970b9b6b3SPhilipp Zabel downsize_coeff_v++; 42070b9b6b3SPhilipp Zabel } 42170b9b6b3SPhilipp Zabel 42270b9b6b3SPhilipp Zabel /* 42370b9b6b3SPhilipp Zabel * Calculate the bilinear resizing coefficients that could be used if 42470b9b6b3SPhilipp Zabel * we were converting with a single tile. The bottom right output pixel 42570b9b6b3SPhilipp Zabel * should sample as close as possible to the bottom right input pixel 42670b9b6b3SPhilipp Zabel * out of the decimator, but not overshoot it: 42770b9b6b3SPhilipp Zabel */ 42870b9b6b3SPhilipp Zabel resize_coeff_h = 8192 * (downsized_width - 1) / (resized_width - 1); 42970b9b6b3SPhilipp Zabel resize_coeff_v = 8192 * (downsized_height - 1) / (resized_height - 1); 43070b9b6b3SPhilipp Zabel 43170b9b6b3SPhilipp Zabel dev_dbg(ctx->chan->priv->ipu->dev, 43270b9b6b3SPhilipp Zabel "%s: hscale: >>%u, *8192/%u vscale: >>%u, *8192/%u, %ux%u tiles\n", 43370b9b6b3SPhilipp Zabel __func__, downsize_coeff_h, resize_coeff_h, downsize_coeff_v, 43470b9b6b3SPhilipp Zabel resize_coeff_v, ctx->in.num_cols, ctx->in.num_rows); 43570b9b6b3SPhilipp Zabel 43670b9b6b3SPhilipp Zabel if (downsize_coeff_h > 2 || downsize_coeff_v > 2 || 43770b9b6b3SPhilipp Zabel resize_coeff_h > 0x3fff || resize_coeff_v > 0x3fff) 43870b9b6b3SPhilipp Zabel return -EINVAL; 43970b9b6b3SPhilipp Zabel 44070b9b6b3SPhilipp Zabel ctx->downsize_coeff_h = downsize_coeff_h; 44170b9b6b3SPhilipp Zabel ctx->downsize_coeff_v = downsize_coeff_v; 44270b9b6b3SPhilipp Zabel ctx->image_resize_coeff_h = resize_coeff_h; 44370b9b6b3SPhilipp Zabel ctx->image_resize_coeff_v = resize_coeff_v; 44470b9b6b3SPhilipp Zabel 44570b9b6b3SPhilipp Zabel return 0; 44670b9b6b3SPhilipp Zabel } 44770b9b6b3SPhilipp Zabel 44864fbae5eSPhilipp Zabel #define round_closest(x, y) round_down((x) + (y)/2, (y)) 44964fbae5eSPhilipp Zabel 45064fbae5eSPhilipp Zabel /* 451ca84b1b8SPhilipp Zabel * Find the best aligned seam position for the given column / row index. 45264fbae5eSPhilipp Zabel * Rotation and image offsets are out of scope. 45364fbae5eSPhilipp Zabel * 454ca84b1b8SPhilipp Zabel * @index: column / row index, used to calculate valid interval 45564fbae5eSPhilipp Zabel * @in_edge: input right / bottom edge 45664fbae5eSPhilipp Zabel * @out_edge: output right / bottom edge 45764fbae5eSPhilipp Zabel * @in_align: input alignment, either horizontal 8-byte line start address 45864fbae5eSPhilipp Zabel * alignment, or pixel alignment due to image format 45964fbae5eSPhilipp Zabel * @out_align: output alignment, either horizontal 8-byte line start address 46064fbae5eSPhilipp Zabel * alignment, or pixel alignment due to image format or rotator 46164fbae5eSPhilipp Zabel * block size 46264fbae5eSPhilipp Zabel * @in_burst: horizontal input burst size in case of horizontal flip 46364fbae5eSPhilipp Zabel * @out_burst: horizontal output burst size or rotator block size 46464fbae5eSPhilipp Zabel * @downsize_coeff: downsizing section coefficient 46564fbae5eSPhilipp Zabel * @resize_coeff: main processing section resizing coefficient 46664fbae5eSPhilipp Zabel * @_in_seam: aligned input seam position return value 46764fbae5eSPhilipp Zabel * @_out_seam: aligned output seam position return value 46864fbae5eSPhilipp Zabel */ 46964fbae5eSPhilipp Zabel static void find_best_seam(struct ipu_image_convert_ctx *ctx, 470ca84b1b8SPhilipp Zabel unsigned int index, 47164fbae5eSPhilipp Zabel unsigned int in_edge, 47264fbae5eSPhilipp Zabel unsigned int out_edge, 47364fbae5eSPhilipp Zabel unsigned int in_align, 47464fbae5eSPhilipp Zabel unsigned int out_align, 47564fbae5eSPhilipp Zabel unsigned int in_burst, 47664fbae5eSPhilipp Zabel unsigned int out_burst, 47764fbae5eSPhilipp Zabel unsigned int downsize_coeff, 47864fbae5eSPhilipp Zabel unsigned int resize_coeff, 47964fbae5eSPhilipp Zabel u32 *_in_seam, 48064fbae5eSPhilipp Zabel u32 *_out_seam) 48164fbae5eSPhilipp Zabel { 48264fbae5eSPhilipp Zabel struct device *dev = ctx->chan->priv->ipu->dev; 48364fbae5eSPhilipp Zabel unsigned int out_pos; 48464fbae5eSPhilipp Zabel /* Input / output seam position candidates */ 48564fbae5eSPhilipp Zabel unsigned int out_seam = 0; 48664fbae5eSPhilipp Zabel unsigned int in_seam = 0; 48764fbae5eSPhilipp Zabel unsigned int min_diff = UINT_MAX; 488ca84b1b8SPhilipp Zabel unsigned int out_start; 489ca84b1b8SPhilipp Zabel unsigned int out_end; 490ca84b1b8SPhilipp Zabel 491ca84b1b8SPhilipp Zabel /* Start within 1024 pixels of the right / bottom edge */ 492ca84b1b8SPhilipp Zabel out_start = max_t(int, 0, out_edge - 1024); 493ca84b1b8SPhilipp Zabel /* End before having to add more columns to the left / rows above */ 494ca84b1b8SPhilipp Zabel out_end = min_t(unsigned int, out_edge, index * 1024); 49564fbae5eSPhilipp Zabel 49664fbae5eSPhilipp Zabel /* 49764fbae5eSPhilipp Zabel * Output tiles must start at a multiple of 8 bytes horizontally and 49864fbae5eSPhilipp Zabel * possibly at an even line horizontally depending on the pixel format. 49964fbae5eSPhilipp Zabel * Only consider output aligned positions for the seam. 50064fbae5eSPhilipp Zabel */ 50164fbae5eSPhilipp Zabel out_start = round_up(out_start, out_align); 50264fbae5eSPhilipp Zabel for (out_pos = out_start; out_pos < out_end; out_pos += out_align) { 50364fbae5eSPhilipp Zabel unsigned int in_pos; 50464fbae5eSPhilipp Zabel unsigned int in_pos_aligned; 50564fbae5eSPhilipp Zabel unsigned int abs_diff; 50664fbae5eSPhilipp Zabel 50764fbae5eSPhilipp Zabel /* 50864fbae5eSPhilipp Zabel * Tiles in the right row / bottom column may not be allowed to 50964fbae5eSPhilipp Zabel * overshoot horizontally / vertically. out_burst may be the 51064fbae5eSPhilipp Zabel * actual DMA burst size, or the rotator block size. 51164fbae5eSPhilipp Zabel */ 51264fbae5eSPhilipp Zabel if ((out_burst > 1) && (out_edge - out_pos) % out_burst) 51364fbae5eSPhilipp Zabel continue; 51464fbae5eSPhilipp Zabel 51564fbae5eSPhilipp Zabel /* 51664fbae5eSPhilipp Zabel * Input sample position, corresponding to out_pos, 19.13 fixed 51764fbae5eSPhilipp Zabel * point. 51864fbae5eSPhilipp Zabel */ 51964fbae5eSPhilipp Zabel in_pos = (out_pos * resize_coeff) << downsize_coeff; 52064fbae5eSPhilipp Zabel /* 52164fbae5eSPhilipp Zabel * The closest input sample position that we could actually 52264fbae5eSPhilipp Zabel * start the input tile at, 19.13 fixed point. 52364fbae5eSPhilipp Zabel */ 52464fbae5eSPhilipp Zabel in_pos_aligned = round_closest(in_pos, 8192U * in_align); 52564fbae5eSPhilipp Zabel 52664fbae5eSPhilipp Zabel if ((in_burst > 1) && 52764fbae5eSPhilipp Zabel (in_edge - in_pos_aligned / 8192U) % in_burst) 52864fbae5eSPhilipp Zabel continue; 52964fbae5eSPhilipp Zabel 53064fbae5eSPhilipp Zabel if (in_pos < in_pos_aligned) 53164fbae5eSPhilipp Zabel abs_diff = in_pos_aligned - in_pos; 53264fbae5eSPhilipp Zabel else 53364fbae5eSPhilipp Zabel abs_diff = in_pos - in_pos_aligned; 53464fbae5eSPhilipp Zabel 53564fbae5eSPhilipp Zabel if (abs_diff < min_diff) { 53664fbae5eSPhilipp Zabel in_seam = in_pos_aligned; 53764fbae5eSPhilipp Zabel out_seam = out_pos; 53864fbae5eSPhilipp Zabel min_diff = abs_diff; 53964fbae5eSPhilipp Zabel } 54064fbae5eSPhilipp Zabel } 54164fbae5eSPhilipp Zabel 54264fbae5eSPhilipp Zabel *_out_seam = out_seam; 54364fbae5eSPhilipp Zabel /* Convert 19.13 fixed point to integer seam position */ 54464fbae5eSPhilipp Zabel *_in_seam = DIV_ROUND_CLOSEST(in_seam, 8192U); 54564fbae5eSPhilipp Zabel 54664fbae5eSPhilipp Zabel dev_dbg(dev, "%s: out_seam %u(%u) in [%u, %u], in_seam %u(%u) diff %u.%03u\n", 54764fbae5eSPhilipp Zabel __func__, out_seam, out_align, out_start, out_end, 54864fbae5eSPhilipp Zabel *_in_seam, in_align, min_diff / 8192, 54964fbae5eSPhilipp Zabel DIV_ROUND_CLOSEST(min_diff % 8192 * 1000, 8192)); 55064fbae5eSPhilipp Zabel } 55164fbae5eSPhilipp Zabel 55264fbae5eSPhilipp Zabel /* 55364fbae5eSPhilipp Zabel * Tile left edges are required to be aligned to multiples of 8 bytes 55464fbae5eSPhilipp Zabel * by the IDMAC. 55564fbae5eSPhilipp Zabel */ 55664fbae5eSPhilipp Zabel static inline u32 tile_left_align(const struct ipu_image_pixfmt *fmt) 55764fbae5eSPhilipp Zabel { 55864fbae5eSPhilipp Zabel if (fmt->planar) 55964fbae5eSPhilipp Zabel return fmt->uv_packed ? 8 : 8 * fmt->uv_width_dec; 56064fbae5eSPhilipp Zabel else 56164fbae5eSPhilipp Zabel return fmt->bpp == 32 ? 2 : fmt->bpp == 16 ? 4 : 8; 56264fbae5eSPhilipp Zabel } 56364fbae5eSPhilipp Zabel 56464fbae5eSPhilipp Zabel /* 56564fbae5eSPhilipp Zabel * Tile top edge alignment is only limited by chroma subsampling. 56664fbae5eSPhilipp Zabel */ 56764fbae5eSPhilipp Zabel static inline u32 tile_top_align(const struct ipu_image_pixfmt *fmt) 56864fbae5eSPhilipp Zabel { 56964fbae5eSPhilipp Zabel return fmt->uv_height_dec > 1 ? 2 : 1; 57064fbae5eSPhilipp Zabel } 57164fbae5eSPhilipp Zabel 572ff652fcfSPhilipp Zabel static inline u32 tile_width_align(enum ipu_image_convert_type type, 573ff652fcfSPhilipp Zabel const struct ipu_image_pixfmt *fmt, 574ff652fcfSPhilipp Zabel enum ipu_rotate_mode rot_mode) 57576e77bf5SPhilipp Zabel { 576ff652fcfSPhilipp Zabel if (type == IMAGE_CONVERT_IN) { 577ff652fcfSPhilipp Zabel /* 578ff652fcfSPhilipp Zabel * The IC burst reads 8 pixels at a time. Reading beyond the 579ff652fcfSPhilipp Zabel * end of the line is usually acceptable. Those pixels are 580ff652fcfSPhilipp Zabel * ignored, unless the IC has to write the scaled line in 581ff652fcfSPhilipp Zabel * reverse. 582ff652fcfSPhilipp Zabel */ 583ff652fcfSPhilipp Zabel return (!ipu_rot_mode_is_irt(rot_mode) && 584ff652fcfSPhilipp Zabel (rot_mode & IPU_ROT_BIT_HFLIP)) ? 8 : 2; 58576e77bf5SPhilipp Zabel } 58676e77bf5SPhilipp Zabel 58776e77bf5SPhilipp Zabel /* 588ff652fcfSPhilipp Zabel * Align to 16x16 pixel blocks for planar 4:2:0 chroma subsampled 589ff652fcfSPhilipp Zabel * formats to guarantee 8-byte aligned line start addresses in the 590ff652fcfSPhilipp Zabel * chroma planes when IRT is used. Align to 8x8 pixel IRT block size 591ff652fcfSPhilipp Zabel * for all other formats. 59276e77bf5SPhilipp Zabel */ 593ff652fcfSPhilipp Zabel return (ipu_rot_mode_is_irt(rot_mode) && 594ff652fcfSPhilipp Zabel fmt->planar && !fmt->uv_packed) ? 595ff652fcfSPhilipp Zabel 8 * fmt->uv_width_dec : 8; 596ff652fcfSPhilipp Zabel } 597ff652fcfSPhilipp Zabel 59876e77bf5SPhilipp Zabel static inline u32 tile_height_align(enum ipu_image_convert_type type, 599ff652fcfSPhilipp Zabel const struct ipu_image_pixfmt *fmt, 60076e77bf5SPhilipp Zabel enum ipu_rotate_mode rot_mode) 60176e77bf5SPhilipp Zabel { 602ff652fcfSPhilipp Zabel if (type == IMAGE_CONVERT_IN || !ipu_rot_mode_is_irt(rot_mode)) 603ff652fcfSPhilipp Zabel return 2; 604ff652fcfSPhilipp Zabel 605ff652fcfSPhilipp Zabel /* 606ff652fcfSPhilipp Zabel * Align to 16x16 pixel blocks for planar 4:2:0 chroma subsampled 607ff652fcfSPhilipp Zabel * formats to guarantee 8-byte aligned line start addresses in the 608ff652fcfSPhilipp Zabel * chroma planes when IRT is used. Align to 8x8 pixel IRT block size 609ff652fcfSPhilipp Zabel * for all other formats. 610ff652fcfSPhilipp Zabel */ 611ff652fcfSPhilipp Zabel return (fmt->planar && !fmt->uv_packed) ? 8 * fmt->uv_width_dec : 8; 61276e77bf5SPhilipp Zabel } 61376e77bf5SPhilipp Zabel 61464fbae5eSPhilipp Zabel /* 61564fbae5eSPhilipp Zabel * Fill in left position and width and for all tiles in an input column, and 61664fbae5eSPhilipp Zabel * for all corresponding output tiles. If the 90° rotator is used, the output 61764fbae5eSPhilipp Zabel * tiles are in a row, and output tile top position and height are set. 61864fbae5eSPhilipp Zabel */ 61964fbae5eSPhilipp Zabel static void fill_tile_column(struct ipu_image_convert_ctx *ctx, 62064fbae5eSPhilipp Zabel unsigned int col, 62164fbae5eSPhilipp Zabel struct ipu_image_convert_image *in, 62264fbae5eSPhilipp Zabel unsigned int in_left, unsigned int in_width, 62364fbae5eSPhilipp Zabel struct ipu_image_convert_image *out, 62464fbae5eSPhilipp Zabel unsigned int out_left, unsigned int out_width) 62564fbae5eSPhilipp Zabel { 62664fbae5eSPhilipp Zabel unsigned int row, tile_idx; 62764fbae5eSPhilipp Zabel struct ipu_image_tile *in_tile, *out_tile; 62864fbae5eSPhilipp Zabel 62964fbae5eSPhilipp Zabel for (row = 0; row < in->num_rows; row++) { 63064fbae5eSPhilipp Zabel tile_idx = in->num_cols * row + col; 63164fbae5eSPhilipp Zabel in_tile = &in->tile[tile_idx]; 63264fbae5eSPhilipp Zabel out_tile = &out->tile[ctx->out_tile_map[tile_idx]]; 63364fbae5eSPhilipp Zabel 63464fbae5eSPhilipp Zabel in_tile->left = in_left; 63564fbae5eSPhilipp Zabel in_tile->width = in_width; 63664fbae5eSPhilipp Zabel 63764fbae5eSPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 63864fbae5eSPhilipp Zabel out_tile->top = out_left; 63964fbae5eSPhilipp Zabel out_tile->height = out_width; 64064fbae5eSPhilipp Zabel } else { 64164fbae5eSPhilipp Zabel out_tile->left = out_left; 64264fbae5eSPhilipp Zabel out_tile->width = out_width; 64364fbae5eSPhilipp Zabel } 64464fbae5eSPhilipp Zabel } 64564fbae5eSPhilipp Zabel } 64664fbae5eSPhilipp Zabel 64764fbae5eSPhilipp Zabel /* 64864fbae5eSPhilipp Zabel * Fill in top position and height and for all tiles in an input row, and 64964fbae5eSPhilipp Zabel * for all corresponding output tiles. If the 90° rotator is used, the output 65064fbae5eSPhilipp Zabel * tiles are in a column, and output tile left position and width are set. 65164fbae5eSPhilipp Zabel */ 65264fbae5eSPhilipp Zabel static void fill_tile_row(struct ipu_image_convert_ctx *ctx, unsigned int row, 65364fbae5eSPhilipp Zabel struct ipu_image_convert_image *in, 65464fbae5eSPhilipp Zabel unsigned int in_top, unsigned int in_height, 65564fbae5eSPhilipp Zabel struct ipu_image_convert_image *out, 65664fbae5eSPhilipp Zabel unsigned int out_top, unsigned int out_height) 65764fbae5eSPhilipp Zabel { 65864fbae5eSPhilipp Zabel unsigned int col, tile_idx; 65964fbae5eSPhilipp Zabel struct ipu_image_tile *in_tile, *out_tile; 66064fbae5eSPhilipp Zabel 66164fbae5eSPhilipp Zabel for (col = 0; col < in->num_cols; col++) { 66264fbae5eSPhilipp Zabel tile_idx = in->num_cols * row + col; 66364fbae5eSPhilipp Zabel in_tile = &in->tile[tile_idx]; 66464fbae5eSPhilipp Zabel out_tile = &out->tile[ctx->out_tile_map[tile_idx]]; 66564fbae5eSPhilipp Zabel 66664fbae5eSPhilipp Zabel in_tile->top = in_top; 66764fbae5eSPhilipp Zabel in_tile->height = in_height; 66864fbae5eSPhilipp Zabel 66964fbae5eSPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 67064fbae5eSPhilipp Zabel out_tile->left = out_top; 67164fbae5eSPhilipp Zabel out_tile->width = out_height; 67264fbae5eSPhilipp Zabel } else { 67364fbae5eSPhilipp Zabel out_tile->top = out_top; 67464fbae5eSPhilipp Zabel out_tile->height = out_height; 67564fbae5eSPhilipp Zabel } 67664fbae5eSPhilipp Zabel } 67764fbae5eSPhilipp Zabel } 67864fbae5eSPhilipp Zabel 67964fbae5eSPhilipp Zabel /* 68064fbae5eSPhilipp Zabel * Find the best horizontal and vertical seam positions to split into tiles. 68164fbae5eSPhilipp Zabel * Minimize the fractional part of the input sampling position for the 68264fbae5eSPhilipp Zabel * top / left pixels of each tile. 68364fbae5eSPhilipp Zabel */ 68464fbae5eSPhilipp Zabel static void find_seams(struct ipu_image_convert_ctx *ctx, 68564fbae5eSPhilipp Zabel struct ipu_image_convert_image *in, 68664fbae5eSPhilipp Zabel struct ipu_image_convert_image *out) 68764fbae5eSPhilipp Zabel { 68864fbae5eSPhilipp Zabel struct device *dev = ctx->chan->priv->ipu->dev; 68964fbae5eSPhilipp Zabel unsigned int resized_width = out->base.rect.width; 69064fbae5eSPhilipp Zabel unsigned int resized_height = out->base.rect.height; 69164fbae5eSPhilipp Zabel unsigned int col; 69264fbae5eSPhilipp Zabel unsigned int row; 69364fbae5eSPhilipp Zabel unsigned int in_left_align = tile_left_align(in->fmt); 69464fbae5eSPhilipp Zabel unsigned int in_top_align = tile_top_align(in->fmt); 69564fbae5eSPhilipp Zabel unsigned int out_left_align = tile_left_align(out->fmt); 69664fbae5eSPhilipp Zabel unsigned int out_top_align = tile_top_align(out->fmt); 697ff652fcfSPhilipp Zabel unsigned int out_width_align = tile_width_align(out->type, out->fmt, 698ff652fcfSPhilipp Zabel ctx->rot_mode); 699ff652fcfSPhilipp Zabel unsigned int out_height_align = tile_height_align(out->type, out->fmt, 70064fbae5eSPhilipp Zabel ctx->rot_mode); 70164fbae5eSPhilipp Zabel unsigned int in_right = in->base.rect.width; 70264fbae5eSPhilipp Zabel unsigned int in_bottom = in->base.rect.height; 70364fbae5eSPhilipp Zabel unsigned int out_right = out->base.rect.width; 70464fbae5eSPhilipp Zabel unsigned int out_bottom = out->base.rect.height; 70564fbae5eSPhilipp Zabel unsigned int flipped_out_left; 70664fbae5eSPhilipp Zabel unsigned int flipped_out_top; 70764fbae5eSPhilipp Zabel 70864fbae5eSPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 70964fbae5eSPhilipp Zabel /* Switch width/height and align top left to IRT block size */ 71064fbae5eSPhilipp Zabel resized_width = out->base.rect.height; 71164fbae5eSPhilipp Zabel resized_height = out->base.rect.width; 71264fbae5eSPhilipp Zabel out_left_align = out_height_align; 71364fbae5eSPhilipp Zabel out_top_align = out_width_align; 71464fbae5eSPhilipp Zabel out_width_align = out_left_align; 71564fbae5eSPhilipp Zabel out_height_align = out_top_align; 71664fbae5eSPhilipp Zabel out_right = out->base.rect.height; 71764fbae5eSPhilipp Zabel out_bottom = out->base.rect.width; 71864fbae5eSPhilipp Zabel } 71964fbae5eSPhilipp Zabel 72064fbae5eSPhilipp Zabel for (col = in->num_cols - 1; col > 0; col--) { 72164fbae5eSPhilipp Zabel bool allow_in_overshoot = ipu_rot_mode_is_irt(ctx->rot_mode) || 72264fbae5eSPhilipp Zabel !(ctx->rot_mode & IPU_ROT_BIT_HFLIP); 72364fbae5eSPhilipp Zabel bool allow_out_overshoot = (col < in->num_cols - 1) && 72464fbae5eSPhilipp Zabel !(ctx->rot_mode & IPU_ROT_BIT_HFLIP); 72564fbae5eSPhilipp Zabel unsigned int in_left; 72664fbae5eSPhilipp Zabel unsigned int out_left; 72764fbae5eSPhilipp Zabel 72864fbae5eSPhilipp Zabel /* 72964fbae5eSPhilipp Zabel * Align input width to burst length if the scaling step flips 73064fbae5eSPhilipp Zabel * horizontally. 73164fbae5eSPhilipp Zabel */ 73264fbae5eSPhilipp Zabel 733ca84b1b8SPhilipp Zabel find_best_seam(ctx, col, 73464fbae5eSPhilipp Zabel in_right, out_right, 73564fbae5eSPhilipp Zabel in_left_align, out_left_align, 73664fbae5eSPhilipp Zabel allow_in_overshoot ? 1 : 8 /* burst length */, 73764fbae5eSPhilipp Zabel allow_out_overshoot ? 1 : out_width_align, 73864fbae5eSPhilipp Zabel ctx->downsize_coeff_h, ctx->image_resize_coeff_h, 73964fbae5eSPhilipp Zabel &in_left, &out_left); 74064fbae5eSPhilipp Zabel 74164fbae5eSPhilipp Zabel if (ctx->rot_mode & IPU_ROT_BIT_HFLIP) 74264fbae5eSPhilipp Zabel flipped_out_left = resized_width - out_right; 74364fbae5eSPhilipp Zabel else 74464fbae5eSPhilipp Zabel flipped_out_left = out_left; 74564fbae5eSPhilipp Zabel 74664fbae5eSPhilipp Zabel fill_tile_column(ctx, col, in, in_left, in_right - in_left, 74764fbae5eSPhilipp Zabel out, flipped_out_left, out_right - out_left); 74864fbae5eSPhilipp Zabel 74964fbae5eSPhilipp Zabel dev_dbg(dev, "%s: col %u: %u, %u -> %u, %u\n", __func__, col, 75064fbae5eSPhilipp Zabel in_left, in_right - in_left, 75164fbae5eSPhilipp Zabel flipped_out_left, out_right - out_left); 75264fbae5eSPhilipp Zabel 75364fbae5eSPhilipp Zabel in_right = in_left; 75464fbae5eSPhilipp Zabel out_right = out_left; 75564fbae5eSPhilipp Zabel } 75664fbae5eSPhilipp Zabel 75764fbae5eSPhilipp Zabel flipped_out_left = (ctx->rot_mode & IPU_ROT_BIT_HFLIP) ? 75864fbae5eSPhilipp Zabel resized_width - out_right : 0; 75964fbae5eSPhilipp Zabel 76064fbae5eSPhilipp Zabel fill_tile_column(ctx, 0, in, 0, in_right, 76164fbae5eSPhilipp Zabel out, flipped_out_left, out_right); 76264fbae5eSPhilipp Zabel 76364fbae5eSPhilipp Zabel dev_dbg(dev, "%s: col 0: 0, %u -> %u, %u\n", __func__, 76464fbae5eSPhilipp Zabel in_right, flipped_out_left, out_right); 76564fbae5eSPhilipp Zabel 76664fbae5eSPhilipp Zabel for (row = in->num_rows - 1; row > 0; row--) { 76764fbae5eSPhilipp Zabel bool allow_overshoot = row < in->num_rows - 1; 76864fbae5eSPhilipp Zabel unsigned int in_top; 76964fbae5eSPhilipp Zabel unsigned int out_top; 77064fbae5eSPhilipp Zabel 771ca84b1b8SPhilipp Zabel find_best_seam(ctx, row, 77264fbae5eSPhilipp Zabel in_bottom, out_bottom, 77364fbae5eSPhilipp Zabel in_top_align, out_top_align, 77464fbae5eSPhilipp Zabel 1, allow_overshoot ? 1 : out_height_align, 77564fbae5eSPhilipp Zabel ctx->downsize_coeff_v, ctx->image_resize_coeff_v, 77664fbae5eSPhilipp Zabel &in_top, &out_top); 77764fbae5eSPhilipp Zabel 77864fbae5eSPhilipp Zabel if ((ctx->rot_mode & IPU_ROT_BIT_VFLIP) ^ 77964fbae5eSPhilipp Zabel ipu_rot_mode_is_irt(ctx->rot_mode)) 78064fbae5eSPhilipp Zabel flipped_out_top = resized_height - out_bottom; 78164fbae5eSPhilipp Zabel else 78264fbae5eSPhilipp Zabel flipped_out_top = out_top; 78364fbae5eSPhilipp Zabel 78464fbae5eSPhilipp Zabel fill_tile_row(ctx, row, in, in_top, in_bottom - in_top, 78564fbae5eSPhilipp Zabel out, flipped_out_top, out_bottom - out_top); 78664fbae5eSPhilipp Zabel 78764fbae5eSPhilipp Zabel dev_dbg(dev, "%s: row %u: %u, %u -> %u, %u\n", __func__, row, 78864fbae5eSPhilipp Zabel in_top, in_bottom - in_top, 78964fbae5eSPhilipp Zabel flipped_out_top, out_bottom - out_top); 79064fbae5eSPhilipp Zabel 79164fbae5eSPhilipp Zabel in_bottom = in_top; 79264fbae5eSPhilipp Zabel out_bottom = out_top; 79364fbae5eSPhilipp Zabel } 79464fbae5eSPhilipp Zabel 79564fbae5eSPhilipp Zabel if ((ctx->rot_mode & IPU_ROT_BIT_VFLIP) ^ 79664fbae5eSPhilipp Zabel ipu_rot_mode_is_irt(ctx->rot_mode)) 79764fbae5eSPhilipp Zabel flipped_out_top = resized_height - out_bottom; 79864fbae5eSPhilipp Zabel else 79964fbae5eSPhilipp Zabel flipped_out_top = 0; 80064fbae5eSPhilipp Zabel 80164fbae5eSPhilipp Zabel fill_tile_row(ctx, 0, in, 0, in_bottom, 80264fbae5eSPhilipp Zabel out, flipped_out_top, out_bottom); 80364fbae5eSPhilipp Zabel 80464fbae5eSPhilipp Zabel dev_dbg(dev, "%s: row 0: 0, %u -> %u, %u\n", __func__, 80564fbae5eSPhilipp Zabel in_bottom, flipped_out_top, out_bottom); 80664fbae5eSPhilipp Zabel } 80764fbae5eSPhilipp Zabel 808cd98e85aSSteve Longerbeam static void calc_tile_dimensions(struct ipu_image_convert_ctx *ctx, 809cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 810cd98e85aSSteve Longerbeam { 811a3f42419SPhilipp Zabel struct ipu_image_convert_chan *chan = ctx->chan; 812a3f42419SPhilipp Zabel struct ipu_image_convert_priv *priv = chan->priv; 813571dd82cSPhilipp Zabel unsigned int i; 814cd98e85aSSteve Longerbeam 815cd98e85aSSteve Longerbeam for (i = 0; i < ctx->num_tiles; i++) { 81664fbae5eSPhilipp Zabel struct ipu_image_tile *tile; 817571dd82cSPhilipp Zabel const unsigned int row = i / image->num_cols; 818571dd82cSPhilipp Zabel const unsigned int col = i % image->num_cols; 819cd98e85aSSteve Longerbeam 82064fbae5eSPhilipp Zabel if (image->type == IMAGE_CONVERT_OUT) 82164fbae5eSPhilipp Zabel tile = &image->tile[ctx->out_tile_map[i]]; 82264fbae5eSPhilipp Zabel else 82364fbae5eSPhilipp Zabel tile = &image->tile[i]; 82464fbae5eSPhilipp Zabel 825cd98e85aSSteve Longerbeam tile->size = ((tile->height * image->fmt->bpp) >> 3) * 826cd98e85aSSteve Longerbeam tile->width; 827cd98e85aSSteve Longerbeam 828cd98e85aSSteve Longerbeam if (image->fmt->planar) { 829cd98e85aSSteve Longerbeam tile->stride = tile->width; 830cd98e85aSSteve Longerbeam tile->rot_stride = tile->height; 831cd98e85aSSteve Longerbeam } else { 832cd98e85aSSteve Longerbeam tile->stride = 833cd98e85aSSteve Longerbeam (image->fmt->bpp * tile->width) >> 3; 834cd98e85aSSteve Longerbeam tile->rot_stride = 835cd98e85aSSteve Longerbeam (image->fmt->bpp * tile->height) >> 3; 836cd98e85aSSteve Longerbeam } 837a3f42419SPhilipp Zabel 838a3f42419SPhilipp Zabel dev_dbg(priv->ipu->dev, 839a3f42419SPhilipp Zabel "task %u: ctx %p: %s@[%u,%u]: %ux%u@%u,%u\n", 840a3f42419SPhilipp Zabel chan->ic_task, ctx, 841a3f42419SPhilipp Zabel image->type == IMAGE_CONVERT_IN ? "Input" : "Output", 842a3f42419SPhilipp Zabel row, col, 843a3f42419SPhilipp Zabel tile->width, tile->height, tile->left, tile->top); 844cd98e85aSSteve Longerbeam } 845cd98e85aSSteve Longerbeam } 846cd98e85aSSteve Longerbeam 847cd98e85aSSteve Longerbeam /* 848cd98e85aSSteve Longerbeam * Use the rotation transformation to find the tile coordinates 849cd98e85aSSteve Longerbeam * (row, col) of a tile in the destination frame that corresponds 850cd98e85aSSteve Longerbeam * to the given tile coordinates of a source frame. The destination 851cd98e85aSSteve Longerbeam * coordinate is then converted to a tile index. 852cd98e85aSSteve Longerbeam */ 853cd98e85aSSteve Longerbeam static int transform_tile_index(struct ipu_image_convert_ctx *ctx, 854cd98e85aSSteve Longerbeam int src_row, int src_col) 855cd98e85aSSteve Longerbeam { 856cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 857cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 858cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 859cd98e85aSSteve Longerbeam struct ipu_image_convert_image *d_image = &ctx->out; 860cd98e85aSSteve Longerbeam int dst_row, dst_col; 861cd98e85aSSteve Longerbeam 862cd98e85aSSteve Longerbeam /* with no rotation it's a 1:1 mapping */ 863cd98e85aSSteve Longerbeam if (ctx->rot_mode == IPU_ROTATE_NONE) 864cd98e85aSSteve Longerbeam return src_row * s_image->num_cols + src_col; 865cd98e85aSSteve Longerbeam 866cd98e85aSSteve Longerbeam /* 867cd98e85aSSteve Longerbeam * before doing the transform, first we have to translate 868cd98e85aSSteve Longerbeam * source row,col for an origin in the center of s_image 869cd98e85aSSteve Longerbeam */ 870cd98e85aSSteve Longerbeam src_row = src_row * 2 - (s_image->num_rows - 1); 871cd98e85aSSteve Longerbeam src_col = src_col * 2 - (s_image->num_cols - 1); 872cd98e85aSSteve Longerbeam 873cd98e85aSSteve Longerbeam /* do the rotation transform */ 874cd98e85aSSteve Longerbeam if (ctx->rot_mode & IPU_ROT_BIT_90) { 875cd98e85aSSteve Longerbeam dst_col = -src_row; 876cd98e85aSSteve Longerbeam dst_row = src_col; 877cd98e85aSSteve Longerbeam } else { 878cd98e85aSSteve Longerbeam dst_col = src_col; 879cd98e85aSSteve Longerbeam dst_row = src_row; 880cd98e85aSSteve Longerbeam } 881cd98e85aSSteve Longerbeam 882cd98e85aSSteve Longerbeam /* apply flip */ 883cd98e85aSSteve Longerbeam if (ctx->rot_mode & IPU_ROT_BIT_HFLIP) 884cd98e85aSSteve Longerbeam dst_col = -dst_col; 885cd98e85aSSteve Longerbeam if (ctx->rot_mode & IPU_ROT_BIT_VFLIP) 886cd98e85aSSteve Longerbeam dst_row = -dst_row; 887cd98e85aSSteve Longerbeam 888cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "task %u: ctx %p: [%d,%d] --> [%d,%d]\n", 889cd98e85aSSteve Longerbeam chan->ic_task, ctx, src_col, src_row, dst_col, dst_row); 890cd98e85aSSteve Longerbeam 891cd98e85aSSteve Longerbeam /* 892cd98e85aSSteve Longerbeam * finally translate dest row,col using an origin in upper 893cd98e85aSSteve Longerbeam * left of d_image 894cd98e85aSSteve Longerbeam */ 895cd98e85aSSteve Longerbeam dst_row += d_image->num_rows - 1; 896cd98e85aSSteve Longerbeam dst_col += d_image->num_cols - 1; 897cd98e85aSSteve Longerbeam dst_row /= 2; 898cd98e85aSSteve Longerbeam dst_col /= 2; 899cd98e85aSSteve Longerbeam 900cd98e85aSSteve Longerbeam return dst_row * d_image->num_cols + dst_col; 901cd98e85aSSteve Longerbeam } 902cd98e85aSSteve Longerbeam 903cd98e85aSSteve Longerbeam /* 904cd98e85aSSteve Longerbeam * Fill the out_tile_map[] with transformed destination tile indeces. 905cd98e85aSSteve Longerbeam */ 906cd98e85aSSteve Longerbeam static void calc_out_tile_map(struct ipu_image_convert_ctx *ctx) 907cd98e85aSSteve Longerbeam { 908cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 909cd98e85aSSteve Longerbeam unsigned int row, col, tile = 0; 910cd98e85aSSteve Longerbeam 911cd98e85aSSteve Longerbeam for (row = 0; row < s_image->num_rows; row++) { 912cd98e85aSSteve Longerbeam for (col = 0; col < s_image->num_cols; col++) { 913cd98e85aSSteve Longerbeam ctx->out_tile_map[tile] = 914cd98e85aSSteve Longerbeam transform_tile_index(ctx, row, col); 915cd98e85aSSteve Longerbeam tile++; 916cd98e85aSSteve Longerbeam } 917cd98e85aSSteve Longerbeam } 918cd98e85aSSteve Longerbeam } 919cd98e85aSSteve Longerbeam 920c4e45658SSteve Longerbeam static int calc_tile_offsets_planar(struct ipu_image_convert_ctx *ctx, 921cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 922cd98e85aSSteve Longerbeam { 923cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 924cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 925cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt = image->fmt; 926cd98e85aSSteve Longerbeam unsigned int row, col, tile = 0; 927571dd82cSPhilipp Zabel u32 H, top, y_stride, uv_stride; 928cd98e85aSSteve Longerbeam u32 uv_row_off, uv_col_off, uv_off, u_off, v_off, tmp; 929cd98e85aSSteve Longerbeam u32 y_row_off, y_col_off, y_off; 930cd98e85aSSteve Longerbeam u32 y_size, uv_size; 931cd98e85aSSteve Longerbeam 932cd98e85aSSteve Longerbeam /* setup some convenience vars */ 933cd98e85aSSteve Longerbeam H = image->base.pix.height; 934cd98e85aSSteve Longerbeam 935cd98e85aSSteve Longerbeam y_stride = image->stride; 936cd98e85aSSteve Longerbeam uv_stride = y_stride / fmt->uv_width_dec; 937cd98e85aSSteve Longerbeam if (fmt->uv_packed) 938cd98e85aSSteve Longerbeam uv_stride *= 2; 939cd98e85aSSteve Longerbeam 940cd98e85aSSteve Longerbeam y_size = H * y_stride; 941cd98e85aSSteve Longerbeam uv_size = y_size / (fmt->uv_width_dec * fmt->uv_height_dec); 942cd98e85aSSteve Longerbeam 943cd98e85aSSteve Longerbeam for (row = 0; row < image->num_rows; row++) { 944571dd82cSPhilipp Zabel top = image->tile[tile].top; 945571dd82cSPhilipp Zabel y_row_off = top * y_stride; 946571dd82cSPhilipp Zabel uv_row_off = (top * uv_stride) / fmt->uv_height_dec; 947cd98e85aSSteve Longerbeam 948cd98e85aSSteve Longerbeam for (col = 0; col < image->num_cols; col++) { 949571dd82cSPhilipp Zabel y_col_off = image->tile[tile].left; 950cd98e85aSSteve Longerbeam uv_col_off = y_col_off / fmt->uv_width_dec; 951cd98e85aSSteve Longerbeam if (fmt->uv_packed) 952cd98e85aSSteve Longerbeam uv_col_off *= 2; 953cd98e85aSSteve Longerbeam 954cd98e85aSSteve Longerbeam y_off = y_row_off + y_col_off; 955cd98e85aSSteve Longerbeam uv_off = uv_row_off + uv_col_off; 956cd98e85aSSteve Longerbeam 957cd98e85aSSteve Longerbeam u_off = y_size - y_off + uv_off; 958cd98e85aSSteve Longerbeam v_off = (fmt->uv_packed) ? 0 : u_off + uv_size; 959cd98e85aSSteve Longerbeam if (fmt->uv_swapped) { 960cd98e85aSSteve Longerbeam tmp = u_off; 961cd98e85aSSteve Longerbeam u_off = v_off; 962cd98e85aSSteve Longerbeam v_off = tmp; 963cd98e85aSSteve Longerbeam } 964cd98e85aSSteve Longerbeam 965cd98e85aSSteve Longerbeam image->tile[tile].offset = y_off; 966cd98e85aSSteve Longerbeam image->tile[tile].u_off = u_off; 967cd98e85aSSteve Longerbeam image->tile[tile++].v_off = v_off; 968cd98e85aSSteve Longerbeam 969c4e45658SSteve Longerbeam if ((y_off & 0x7) || (u_off & 0x7) || (v_off & 0x7)) { 970c4e45658SSteve Longerbeam dev_err(priv->ipu->dev, 971c4e45658SSteve Longerbeam "task %u: ctx %p: %s@[%d,%d]: " 972c4e45658SSteve Longerbeam "y_off %08x, u_off %08x, v_off %08x\n", 973cd98e85aSSteve Longerbeam chan->ic_task, ctx, 974cd98e85aSSteve Longerbeam image->type == IMAGE_CONVERT_IN ? 975cd98e85aSSteve Longerbeam "Input" : "Output", row, col, 976cd98e85aSSteve Longerbeam y_off, u_off, v_off); 977c4e45658SSteve Longerbeam return -EINVAL; 978cd98e85aSSteve Longerbeam } 979cd98e85aSSteve Longerbeam } 980cd98e85aSSteve Longerbeam } 981cd98e85aSSteve Longerbeam 982c4e45658SSteve Longerbeam return 0; 983c4e45658SSteve Longerbeam } 984c4e45658SSteve Longerbeam 985c4e45658SSteve Longerbeam static int calc_tile_offsets_packed(struct ipu_image_convert_ctx *ctx, 986cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 987cd98e85aSSteve Longerbeam { 988cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 989cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 990cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt = image->fmt; 991cd98e85aSSteve Longerbeam unsigned int row, col, tile = 0; 992571dd82cSPhilipp Zabel u32 bpp, stride, offset; 993cd98e85aSSteve Longerbeam u32 row_off, col_off; 994cd98e85aSSteve Longerbeam 995cd98e85aSSteve Longerbeam /* setup some convenience vars */ 996cd98e85aSSteve Longerbeam stride = image->stride; 997cd98e85aSSteve Longerbeam bpp = fmt->bpp; 998cd98e85aSSteve Longerbeam 999cd98e85aSSteve Longerbeam for (row = 0; row < image->num_rows; row++) { 1000571dd82cSPhilipp Zabel row_off = image->tile[tile].top * stride; 1001cd98e85aSSteve Longerbeam 1002cd98e85aSSteve Longerbeam for (col = 0; col < image->num_cols; col++) { 1003571dd82cSPhilipp Zabel col_off = (image->tile[tile].left * bpp) >> 3; 1004cd98e85aSSteve Longerbeam 1005c4e45658SSteve Longerbeam offset = row_off + col_off; 1006c4e45658SSteve Longerbeam 1007c4e45658SSteve Longerbeam image->tile[tile].offset = offset; 1008cd98e85aSSteve Longerbeam image->tile[tile].u_off = 0; 1009cd98e85aSSteve Longerbeam image->tile[tile++].v_off = 0; 1010cd98e85aSSteve Longerbeam 1011c4e45658SSteve Longerbeam if (offset & 0x7) { 1012c4e45658SSteve Longerbeam dev_err(priv->ipu->dev, 1013c4e45658SSteve Longerbeam "task %u: ctx %p: %s@[%d,%d]: " 1014c4e45658SSteve Longerbeam "phys %08x\n", 1015cd98e85aSSteve Longerbeam chan->ic_task, ctx, 1016cd98e85aSSteve Longerbeam image->type == IMAGE_CONVERT_IN ? 1017cd98e85aSSteve Longerbeam "Input" : "Output", row, col, 1018cd98e85aSSteve Longerbeam row_off + col_off); 1019c4e45658SSteve Longerbeam return -EINVAL; 1020cd98e85aSSteve Longerbeam } 1021cd98e85aSSteve Longerbeam } 1022cd98e85aSSteve Longerbeam } 1023cd98e85aSSteve Longerbeam 1024c4e45658SSteve Longerbeam return 0; 1025c4e45658SSteve Longerbeam } 1026c4e45658SSteve Longerbeam 1027c4e45658SSteve Longerbeam static int calc_tile_offsets(struct ipu_image_convert_ctx *ctx, 1028cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 1029cd98e85aSSteve Longerbeam { 1030cd98e85aSSteve Longerbeam if (image->fmt->planar) 1031c4e45658SSteve Longerbeam return calc_tile_offsets_planar(ctx, image); 1032c4e45658SSteve Longerbeam 1033c4e45658SSteve Longerbeam return calc_tile_offsets_packed(ctx, image); 1034cd98e85aSSteve Longerbeam } 1035cd98e85aSSteve Longerbeam 1036cd98e85aSSteve Longerbeam /* 103770b9b6b3SPhilipp Zabel * Calculate the resizing ratio for the IC main processing section given input 103870b9b6b3SPhilipp Zabel * size, fixed downsizing coefficient, and output size. 103970b9b6b3SPhilipp Zabel * Either round to closest for the next tile's first pixel to minimize seams 104070b9b6b3SPhilipp Zabel * and distortion (for all but right column / bottom row), or round down to 104170b9b6b3SPhilipp Zabel * avoid sampling beyond the edges of the input image for this tile's last 104270b9b6b3SPhilipp Zabel * pixel. 104370b9b6b3SPhilipp Zabel * Returns the resizing coefficient, resizing ratio is 8192.0 / resize_coeff. 104470b9b6b3SPhilipp Zabel */ 104570b9b6b3SPhilipp Zabel static u32 calc_resize_coeff(u32 input_size, u32 downsize_coeff, 104670b9b6b3SPhilipp Zabel u32 output_size, bool allow_overshoot) 104770b9b6b3SPhilipp Zabel { 104870b9b6b3SPhilipp Zabel u32 downsized = input_size >> downsize_coeff; 104970b9b6b3SPhilipp Zabel 105070b9b6b3SPhilipp Zabel if (allow_overshoot) 105170b9b6b3SPhilipp Zabel return DIV_ROUND_CLOSEST(8192 * downsized, output_size); 105270b9b6b3SPhilipp Zabel else 105370b9b6b3SPhilipp Zabel return 8192 * (downsized - 1) / (output_size - 1); 105470b9b6b3SPhilipp Zabel } 105570b9b6b3SPhilipp Zabel 105670b9b6b3SPhilipp Zabel /* 105770b9b6b3SPhilipp Zabel * Slightly modify resize coefficients per tile to hide the bilinear 105870b9b6b3SPhilipp Zabel * interpolator reset at tile borders, shifting the right / bottom edge 105970b9b6b3SPhilipp Zabel * by up to a half input pixel. This removes noticeable seams between 106070b9b6b3SPhilipp Zabel * tiles at higher upscaling factors. 106170b9b6b3SPhilipp Zabel */ 106270b9b6b3SPhilipp Zabel static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx) 106370b9b6b3SPhilipp Zabel { 106470b9b6b3SPhilipp Zabel struct ipu_image_convert_chan *chan = ctx->chan; 106570b9b6b3SPhilipp Zabel struct ipu_image_convert_priv *priv = chan->priv; 106670b9b6b3SPhilipp Zabel struct ipu_image_tile *in_tile, *out_tile; 106770b9b6b3SPhilipp Zabel unsigned int col, row, tile_idx; 106870b9b6b3SPhilipp Zabel unsigned int last_output; 106970b9b6b3SPhilipp Zabel 107070b9b6b3SPhilipp Zabel for (col = 0; col < ctx->in.num_cols; col++) { 107170b9b6b3SPhilipp Zabel bool closest = (col < ctx->in.num_cols - 1) && 107270b9b6b3SPhilipp Zabel !(ctx->rot_mode & IPU_ROT_BIT_HFLIP); 107370b9b6b3SPhilipp Zabel u32 resized_width; 107470b9b6b3SPhilipp Zabel u32 resize_coeff_h; 107570b9b6b3SPhilipp Zabel 107670b9b6b3SPhilipp Zabel tile_idx = col; 107770b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 107870b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 107970b9b6b3SPhilipp Zabel 108070b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 108170b9b6b3SPhilipp Zabel resized_width = out_tile->height; 108270b9b6b3SPhilipp Zabel else 108370b9b6b3SPhilipp Zabel resized_width = out_tile->width; 108470b9b6b3SPhilipp Zabel 108570b9b6b3SPhilipp Zabel resize_coeff_h = calc_resize_coeff(in_tile->width, 108670b9b6b3SPhilipp Zabel ctx->downsize_coeff_h, 108770b9b6b3SPhilipp Zabel resized_width, closest); 108870b9b6b3SPhilipp Zabel 108970b9b6b3SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: column %u hscale: *8192/%u\n", 109070b9b6b3SPhilipp Zabel __func__, col, resize_coeff_h); 109170b9b6b3SPhilipp Zabel 109270b9b6b3SPhilipp Zabel 109370b9b6b3SPhilipp Zabel for (row = 0; row < ctx->in.num_rows; row++) { 109470b9b6b3SPhilipp Zabel tile_idx = row * ctx->in.num_cols + col; 109570b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 109670b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 109770b9b6b3SPhilipp Zabel 109870b9b6b3SPhilipp Zabel /* 109970b9b6b3SPhilipp Zabel * With the horizontal scaling factor known, round up 110070b9b6b3SPhilipp Zabel * resized width (output width or height) to burst size. 110170b9b6b3SPhilipp Zabel */ 110270b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 110370b9b6b3SPhilipp Zabel out_tile->height = round_up(resized_width, 8); 110470b9b6b3SPhilipp Zabel else 110570b9b6b3SPhilipp Zabel out_tile->width = round_up(resized_width, 8); 110670b9b6b3SPhilipp Zabel 110770b9b6b3SPhilipp Zabel /* 110870b9b6b3SPhilipp Zabel * Calculate input width from the last accessed input 110970b9b6b3SPhilipp Zabel * pixel given resized width and scaling coefficients. 111070b9b6b3SPhilipp Zabel * Round up to burst size. 111170b9b6b3SPhilipp Zabel */ 111270b9b6b3SPhilipp Zabel last_output = round_up(resized_width, 8) - 1; 111370b9b6b3SPhilipp Zabel if (closest) 111470b9b6b3SPhilipp Zabel last_output++; 111570b9b6b3SPhilipp Zabel in_tile->width = round_up( 111670b9b6b3SPhilipp Zabel (DIV_ROUND_UP(last_output * resize_coeff_h, 111770b9b6b3SPhilipp Zabel 8192) + 1) 111870b9b6b3SPhilipp Zabel << ctx->downsize_coeff_h, 8); 111970b9b6b3SPhilipp Zabel } 112070b9b6b3SPhilipp Zabel 112170b9b6b3SPhilipp Zabel ctx->resize_coeffs_h[col] = resize_coeff_h; 112270b9b6b3SPhilipp Zabel } 112370b9b6b3SPhilipp Zabel 112470b9b6b3SPhilipp Zabel for (row = 0; row < ctx->in.num_rows; row++) { 112570b9b6b3SPhilipp Zabel bool closest = (row < ctx->in.num_rows - 1) && 112670b9b6b3SPhilipp Zabel !(ctx->rot_mode & IPU_ROT_BIT_VFLIP); 112770b9b6b3SPhilipp Zabel u32 resized_height; 112870b9b6b3SPhilipp Zabel u32 resize_coeff_v; 112970b9b6b3SPhilipp Zabel 113070b9b6b3SPhilipp Zabel tile_idx = row * ctx->in.num_cols; 113170b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 113270b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 113370b9b6b3SPhilipp Zabel 113470b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 113570b9b6b3SPhilipp Zabel resized_height = out_tile->width; 113670b9b6b3SPhilipp Zabel else 113770b9b6b3SPhilipp Zabel resized_height = out_tile->height; 113870b9b6b3SPhilipp Zabel 113970b9b6b3SPhilipp Zabel resize_coeff_v = calc_resize_coeff(in_tile->height, 114070b9b6b3SPhilipp Zabel ctx->downsize_coeff_v, 114170b9b6b3SPhilipp Zabel resized_height, closest); 114270b9b6b3SPhilipp Zabel 114370b9b6b3SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: row %u vscale: *8192/%u\n", 114470b9b6b3SPhilipp Zabel __func__, row, resize_coeff_v); 114570b9b6b3SPhilipp Zabel 114670b9b6b3SPhilipp Zabel for (col = 0; col < ctx->in.num_cols; col++) { 114770b9b6b3SPhilipp Zabel tile_idx = row * ctx->in.num_cols + col; 114870b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 114970b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 115070b9b6b3SPhilipp Zabel 115170b9b6b3SPhilipp Zabel /* 115270b9b6b3SPhilipp Zabel * With the vertical scaling factor known, round up 115370b9b6b3SPhilipp Zabel * resized height (output width or height) to IDMAC 115470b9b6b3SPhilipp Zabel * limitations. 115570b9b6b3SPhilipp Zabel */ 115670b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 115770b9b6b3SPhilipp Zabel out_tile->width = round_up(resized_height, 2); 115870b9b6b3SPhilipp Zabel else 115970b9b6b3SPhilipp Zabel out_tile->height = round_up(resized_height, 2); 116070b9b6b3SPhilipp Zabel 116170b9b6b3SPhilipp Zabel /* 116270b9b6b3SPhilipp Zabel * Calculate input width from the last accessed input 116370b9b6b3SPhilipp Zabel * pixel given resized height and scaling coefficients. 116470b9b6b3SPhilipp Zabel * Align to IDMAC restrictions. 116570b9b6b3SPhilipp Zabel */ 116670b9b6b3SPhilipp Zabel last_output = round_up(resized_height, 2) - 1; 116770b9b6b3SPhilipp Zabel if (closest) 116870b9b6b3SPhilipp Zabel last_output++; 116970b9b6b3SPhilipp Zabel in_tile->height = round_up( 117070b9b6b3SPhilipp Zabel (DIV_ROUND_UP(last_output * resize_coeff_v, 117170b9b6b3SPhilipp Zabel 8192) + 1) 117270b9b6b3SPhilipp Zabel << ctx->downsize_coeff_v, 2); 117370b9b6b3SPhilipp Zabel } 117470b9b6b3SPhilipp Zabel 117570b9b6b3SPhilipp Zabel ctx->resize_coeffs_v[row] = resize_coeff_v; 117670b9b6b3SPhilipp Zabel } 117770b9b6b3SPhilipp Zabel } 117870b9b6b3SPhilipp Zabel 117970b9b6b3SPhilipp Zabel /* 1180cd98e85aSSteve Longerbeam * return the number of runs in given queue (pending_q or done_q) 1181cd98e85aSSteve Longerbeam * for this context. hold irqlock when calling. 1182cd98e85aSSteve Longerbeam */ 1183cd98e85aSSteve Longerbeam static int get_run_count(struct ipu_image_convert_ctx *ctx, 1184cd98e85aSSteve Longerbeam struct list_head *q) 1185cd98e85aSSteve Longerbeam { 1186cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1187cd98e85aSSteve Longerbeam int count = 0; 1188cd98e85aSSteve Longerbeam 1189cd98e85aSSteve Longerbeam lockdep_assert_held(&ctx->chan->irqlock); 1190cd98e85aSSteve Longerbeam 1191cd98e85aSSteve Longerbeam list_for_each_entry(run, q, list) { 1192cd98e85aSSteve Longerbeam if (run->ctx == ctx) 1193cd98e85aSSteve Longerbeam count++; 1194cd98e85aSSteve Longerbeam } 1195cd98e85aSSteve Longerbeam 1196cd98e85aSSteve Longerbeam return count; 1197cd98e85aSSteve Longerbeam } 1198cd98e85aSSteve Longerbeam 1199cd98e85aSSteve Longerbeam static void convert_stop(struct ipu_image_convert_run *run) 1200cd98e85aSSteve Longerbeam { 1201cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 1202cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1203cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1204cd98e85aSSteve Longerbeam 1205cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: stopping ctx %p run %p\n", 1206cd98e85aSSteve Longerbeam __func__, chan->ic_task, ctx, run); 1207cd98e85aSSteve Longerbeam 1208cd98e85aSSteve Longerbeam /* disable IC tasks and the channels */ 1209cd98e85aSSteve Longerbeam ipu_ic_task_disable(chan->ic); 1210cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->in_chan); 1211cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->out_chan); 1212cd98e85aSSteve Longerbeam 1213cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1214cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->rotation_in_chan); 1215cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->rotation_out_chan); 1216cd98e85aSSteve Longerbeam ipu_idmac_unlink(chan->out_chan, chan->rotation_in_chan); 1217cd98e85aSSteve Longerbeam } 1218cd98e85aSSteve Longerbeam 1219cd98e85aSSteve Longerbeam ipu_ic_disable(chan->ic); 1220cd98e85aSSteve Longerbeam } 1221cd98e85aSSteve Longerbeam 1222cd98e85aSSteve Longerbeam static void init_idmac_channel(struct ipu_image_convert_ctx *ctx, 1223cd98e85aSSteve Longerbeam struct ipuv3_channel *channel, 1224cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image, 1225cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode, 1226dd65d2a9SPhilipp Zabel bool rot_swap_width_height, 1227dd65d2a9SPhilipp Zabel unsigned int tile) 1228cd98e85aSSteve Longerbeam { 1229cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1230cd98e85aSSteve Longerbeam unsigned int burst_size; 1231cd98e85aSSteve Longerbeam u32 width, height, stride; 1232cd98e85aSSteve Longerbeam dma_addr_t addr0, addr1 = 0; 1233cd98e85aSSteve Longerbeam struct ipu_image tile_image; 1234cd98e85aSSteve Longerbeam unsigned int tile_idx[2]; 1235cd98e85aSSteve Longerbeam 1236cd98e85aSSteve Longerbeam if (image->type == IMAGE_CONVERT_OUT) { 1237dd65d2a9SPhilipp Zabel tile_idx[0] = ctx->out_tile_map[tile]; 1238cd98e85aSSteve Longerbeam tile_idx[1] = ctx->out_tile_map[1]; 1239cd98e85aSSteve Longerbeam } else { 1240dd65d2a9SPhilipp Zabel tile_idx[0] = tile; 1241cd98e85aSSteve Longerbeam tile_idx[1] = 1; 1242cd98e85aSSteve Longerbeam } 1243cd98e85aSSteve Longerbeam 1244cd98e85aSSteve Longerbeam if (rot_swap_width_height) { 1245dd65d2a9SPhilipp Zabel width = image->tile[tile_idx[0]].height; 1246dd65d2a9SPhilipp Zabel height = image->tile[tile_idx[0]].width; 1247dd65d2a9SPhilipp Zabel stride = image->tile[tile_idx[0]].rot_stride; 1248cd98e85aSSteve Longerbeam addr0 = ctx->rot_intermediate[0].phys; 1249cd98e85aSSteve Longerbeam if (ctx->double_buffering) 1250cd98e85aSSteve Longerbeam addr1 = ctx->rot_intermediate[1].phys; 1251cd98e85aSSteve Longerbeam } else { 1252dd65d2a9SPhilipp Zabel width = image->tile[tile_idx[0]].width; 1253dd65d2a9SPhilipp Zabel height = image->tile[tile_idx[0]].height; 1254cd98e85aSSteve Longerbeam stride = image->stride; 1255cd98e85aSSteve Longerbeam addr0 = image->base.phys0 + 1256cd98e85aSSteve Longerbeam image->tile[tile_idx[0]].offset; 1257cd98e85aSSteve Longerbeam if (ctx->double_buffering) 1258cd98e85aSSteve Longerbeam addr1 = image->base.phys0 + 1259cd98e85aSSteve Longerbeam image->tile[tile_idx[1]].offset; 1260cd98e85aSSteve Longerbeam } 1261cd98e85aSSteve Longerbeam 1262cd98e85aSSteve Longerbeam ipu_cpmem_zero(channel); 1263cd98e85aSSteve Longerbeam 1264cd98e85aSSteve Longerbeam memset(&tile_image, 0, sizeof(tile_image)); 1265cd98e85aSSteve Longerbeam tile_image.pix.width = tile_image.rect.width = width; 1266cd98e85aSSteve Longerbeam tile_image.pix.height = tile_image.rect.height = height; 1267cd98e85aSSteve Longerbeam tile_image.pix.bytesperline = stride; 1268cd98e85aSSteve Longerbeam tile_image.pix.pixelformat = image->fmt->fourcc; 1269cd98e85aSSteve Longerbeam tile_image.phys0 = addr0; 1270cd98e85aSSteve Longerbeam tile_image.phys1 = addr1; 1271dec408fdSSteve Longerbeam if (image->fmt->planar && !rot_swap_width_height) { 1272dec408fdSSteve Longerbeam tile_image.u_offset = image->tile[tile_idx[0]].u_off; 1273dec408fdSSteve Longerbeam tile_image.v_offset = image->tile[tile_idx[0]].v_off; 1274dec408fdSSteve Longerbeam } 1275cd98e85aSSteve Longerbeam 1276dec408fdSSteve Longerbeam ipu_cpmem_set_image(channel, &tile_image); 1277cd98e85aSSteve Longerbeam 1278cd98e85aSSteve Longerbeam if (rot_mode) 1279cd98e85aSSteve Longerbeam ipu_cpmem_set_rotation(channel, rot_mode); 1280cd98e85aSSteve Longerbeam 1281fee77829SSteve Longerbeam /* 1282fee77829SSteve Longerbeam * Skip writing U and V components to odd rows in the output 1283fee77829SSteve Longerbeam * channels for planar 4:2:0. 1284fee77829SSteve Longerbeam */ 1285fee77829SSteve Longerbeam if ((channel == chan->out_chan || 1286fee77829SSteve Longerbeam channel == chan->rotation_out_chan) && 1287fee77829SSteve Longerbeam image->fmt->planar && image->fmt->uv_height_dec == 2) 1288fee77829SSteve Longerbeam ipu_cpmem_skip_odd_chroma_rows(channel); 1289fee77829SSteve Longerbeam 1290cd98e85aSSteve Longerbeam if (channel == chan->rotation_in_chan || 1291cd98e85aSSteve Longerbeam channel == chan->rotation_out_chan) { 1292cd98e85aSSteve Longerbeam burst_size = 8; 1293cd98e85aSSteve Longerbeam ipu_cpmem_set_block_mode(channel); 1294cd98e85aSSteve Longerbeam } else 1295cd98e85aSSteve Longerbeam burst_size = (width % 16) ? 8 : 16; 1296cd98e85aSSteve Longerbeam 1297cd98e85aSSteve Longerbeam ipu_cpmem_set_burstsize(channel, burst_size); 1298cd98e85aSSteve Longerbeam 1299cd98e85aSSteve Longerbeam ipu_ic_task_idma_init(chan->ic, channel, width, height, 1300cd98e85aSSteve Longerbeam burst_size, rot_mode); 1301cd98e85aSSteve Longerbeam 1302320a89adSLucas Stach /* 1303320a89adSLucas Stach * Setting a non-zero AXI ID collides with the PRG AXI snooping, so 1304320a89adSLucas Stach * only do this when there is no PRG present. 1305320a89adSLucas Stach */ 1306320a89adSLucas Stach if (!channel->ipu->prg_priv) 1307cd98e85aSSteve Longerbeam ipu_cpmem_set_axi_id(channel, 1); 1308cd98e85aSSteve Longerbeam 1309cd98e85aSSteve Longerbeam ipu_idmac_set_double_buffer(channel, ctx->double_buffering); 1310cd98e85aSSteve Longerbeam } 1311cd98e85aSSteve Longerbeam 1312dd65d2a9SPhilipp Zabel static int convert_start(struct ipu_image_convert_run *run, unsigned int tile) 1313cd98e85aSSteve Longerbeam { 1314cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 1315cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1316cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1317cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 1318cd98e85aSSteve Longerbeam struct ipu_image_convert_image *d_image = &ctx->out; 1319dd65d2a9SPhilipp Zabel unsigned int dst_tile = ctx->out_tile_map[tile]; 1320cd98e85aSSteve Longerbeam unsigned int dest_width, dest_height; 132170b9b6b3SPhilipp Zabel unsigned int col, row; 132270b9b6b3SPhilipp Zabel u32 rsc; 1323cd98e85aSSteve Longerbeam int ret; 1324cd98e85aSSteve Longerbeam 1325dd65d2a9SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: task %u: starting ctx %p run %p tile %u -> %u\n", 1326dd65d2a9SPhilipp Zabel __func__, chan->ic_task, ctx, run, tile, dst_tile); 1327cd98e85aSSteve Longerbeam 1328cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1329cd98e85aSSteve Longerbeam /* swap width/height for resizer */ 1330dd65d2a9SPhilipp Zabel dest_width = d_image->tile[dst_tile].height; 1331dd65d2a9SPhilipp Zabel dest_height = d_image->tile[dst_tile].width; 1332cd98e85aSSteve Longerbeam } else { 1333dd65d2a9SPhilipp Zabel dest_width = d_image->tile[dst_tile].width; 1334dd65d2a9SPhilipp Zabel dest_height = d_image->tile[dst_tile].height; 1335cd98e85aSSteve Longerbeam } 1336cd98e85aSSteve Longerbeam 133770b9b6b3SPhilipp Zabel row = tile / s_image->num_cols; 133870b9b6b3SPhilipp Zabel col = tile % s_image->num_cols; 133970b9b6b3SPhilipp Zabel 134070b9b6b3SPhilipp Zabel rsc = (ctx->downsize_coeff_v << 30) | 134170b9b6b3SPhilipp Zabel (ctx->resize_coeffs_v[row] << 16) | 134270b9b6b3SPhilipp Zabel (ctx->downsize_coeff_h << 14) | 134370b9b6b3SPhilipp Zabel (ctx->resize_coeffs_h[col]); 134470b9b6b3SPhilipp Zabel 134570b9b6b3SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: %ux%u -> %ux%u (rsc = 0x%x)\n", 134670b9b6b3SPhilipp Zabel __func__, s_image->tile[tile].width, 134770b9b6b3SPhilipp Zabel s_image->tile[tile].height, dest_width, dest_height, rsc); 134870b9b6b3SPhilipp Zabel 1349cd98e85aSSteve Longerbeam /* setup the IC resizer and CSC */ 1350f208b26eSSteve Longerbeam ret = ipu_ic_task_init_rsc(chan->ic, &ctx->csc, 1351dd65d2a9SPhilipp Zabel s_image->tile[tile].width, 1352dd65d2a9SPhilipp Zabel s_image->tile[tile].height, 1353cd98e85aSSteve Longerbeam dest_width, 1354cd98e85aSSteve Longerbeam dest_height, 135570b9b6b3SPhilipp Zabel rsc); 1356cd98e85aSSteve Longerbeam if (ret) { 1357cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "ipu_ic_task_init failed, %d\n", ret); 1358cd98e85aSSteve Longerbeam return ret; 1359cd98e85aSSteve Longerbeam } 1360cd98e85aSSteve Longerbeam 1361cd98e85aSSteve Longerbeam /* init the source MEM-->IC PP IDMAC channel */ 1362cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->in_chan, s_image, 1363dd65d2a9SPhilipp Zabel IPU_ROTATE_NONE, false, tile); 1364cd98e85aSSteve Longerbeam 1365cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1366cd98e85aSSteve Longerbeam /* init the IC PP-->MEM IDMAC channel */ 1367cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->out_chan, d_image, 1368dd65d2a9SPhilipp Zabel IPU_ROTATE_NONE, true, tile); 1369cd98e85aSSteve Longerbeam 1370cd98e85aSSteve Longerbeam /* init the MEM-->IC PP ROT IDMAC channel */ 1371cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->rotation_in_chan, d_image, 1372dd65d2a9SPhilipp Zabel ctx->rot_mode, true, tile); 1373cd98e85aSSteve Longerbeam 1374cd98e85aSSteve Longerbeam /* init the destination IC PP ROT-->MEM IDMAC channel */ 1375cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->rotation_out_chan, d_image, 1376dd65d2a9SPhilipp Zabel IPU_ROTATE_NONE, false, tile); 1377cd98e85aSSteve Longerbeam 1378cd98e85aSSteve Longerbeam /* now link IC PP-->MEM to MEM-->IC PP ROT */ 1379cd98e85aSSteve Longerbeam ipu_idmac_link(chan->out_chan, chan->rotation_in_chan); 1380cd98e85aSSteve Longerbeam } else { 1381cd98e85aSSteve Longerbeam /* init the destination IC PP-->MEM IDMAC channel */ 1382cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->out_chan, d_image, 1383dd65d2a9SPhilipp Zabel ctx->rot_mode, false, tile); 1384cd98e85aSSteve Longerbeam } 1385cd98e85aSSteve Longerbeam 1386cd98e85aSSteve Longerbeam /* enable the IC */ 1387cd98e85aSSteve Longerbeam ipu_ic_enable(chan->ic); 1388cd98e85aSSteve Longerbeam 1389cd98e85aSSteve Longerbeam /* set buffers ready */ 1390cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, 0); 1391cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->out_chan, 0); 1392cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) 1393cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->rotation_out_chan, 0); 1394cd98e85aSSteve Longerbeam if (ctx->double_buffering) { 1395cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, 1); 1396cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->out_chan, 1); 1397cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) 1398cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->rotation_out_chan, 1); 1399cd98e85aSSteve Longerbeam } 1400cd98e85aSSteve Longerbeam 1401cd98e85aSSteve Longerbeam /* enable the channels! */ 1402cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->in_chan); 1403cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->out_chan); 1404cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1405cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->rotation_in_chan); 1406cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->rotation_out_chan); 1407cd98e85aSSteve Longerbeam } 1408cd98e85aSSteve Longerbeam 1409cd98e85aSSteve Longerbeam ipu_ic_task_enable(chan->ic); 1410cd98e85aSSteve Longerbeam 1411cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->in_chan); 1412cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->out_chan); 1413cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1414cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->rotation_in_chan); 1415cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->rotation_out_chan); 1416cd98e85aSSteve Longerbeam } 1417cd98e85aSSteve Longerbeam 1418cd98e85aSSteve Longerbeam ipu_dump(priv->ipu); 1419cd98e85aSSteve Longerbeam 1420cd98e85aSSteve Longerbeam return 0; 1421cd98e85aSSteve Longerbeam } 1422cd98e85aSSteve Longerbeam 1423cd98e85aSSteve Longerbeam /* hold irqlock when calling */ 1424cd98e85aSSteve Longerbeam static int do_run(struct ipu_image_convert_run *run) 1425cd98e85aSSteve Longerbeam { 1426cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 1427cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1428cd98e85aSSteve Longerbeam 1429cd98e85aSSteve Longerbeam lockdep_assert_held(&chan->irqlock); 1430cd98e85aSSteve Longerbeam 1431cd98e85aSSteve Longerbeam ctx->in.base.phys0 = run->in_phys; 1432cd98e85aSSteve Longerbeam ctx->out.base.phys0 = run->out_phys; 1433cd98e85aSSteve Longerbeam 1434cd98e85aSSteve Longerbeam ctx->cur_buf_num = 0; 1435cd98e85aSSteve Longerbeam ctx->next_tile = 1; 1436cd98e85aSSteve Longerbeam 1437cd98e85aSSteve Longerbeam /* remove run from pending_q and set as current */ 1438cd98e85aSSteve Longerbeam list_del(&run->list); 1439cd98e85aSSteve Longerbeam chan->current_run = run; 1440cd98e85aSSteve Longerbeam 1441dd65d2a9SPhilipp Zabel return convert_start(run, 0); 1442cd98e85aSSteve Longerbeam } 1443cd98e85aSSteve Longerbeam 1444cd98e85aSSteve Longerbeam /* hold irqlock when calling */ 1445cd98e85aSSteve Longerbeam static void run_next(struct ipu_image_convert_chan *chan) 1446cd98e85aSSteve Longerbeam { 1447cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1448cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run, *tmp; 1449cd98e85aSSteve Longerbeam int ret; 1450cd98e85aSSteve Longerbeam 1451cd98e85aSSteve Longerbeam lockdep_assert_held(&chan->irqlock); 1452cd98e85aSSteve Longerbeam 1453cd98e85aSSteve Longerbeam list_for_each_entry_safe(run, tmp, &chan->pending_q, list) { 1454cd98e85aSSteve Longerbeam /* skip contexts that are aborting */ 1455cd98e85aSSteve Longerbeam if (run->ctx->aborting) { 1456cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1457cd98e85aSSteve Longerbeam "%s: task %u: skipping aborting ctx %p run %p\n", 1458cd98e85aSSteve Longerbeam __func__, chan->ic_task, run->ctx, run); 1459cd98e85aSSteve Longerbeam continue; 1460cd98e85aSSteve Longerbeam } 1461cd98e85aSSteve Longerbeam 1462cd98e85aSSteve Longerbeam ret = do_run(run); 1463cd98e85aSSteve Longerbeam if (!ret) 1464cd98e85aSSteve Longerbeam break; 1465cd98e85aSSteve Longerbeam 1466cd98e85aSSteve Longerbeam /* 1467cd98e85aSSteve Longerbeam * something went wrong with start, add the run 1468cd98e85aSSteve Longerbeam * to done q and continue to the next run in the 1469cd98e85aSSteve Longerbeam * pending q. 1470cd98e85aSSteve Longerbeam */ 1471cd98e85aSSteve Longerbeam run->status = ret; 1472cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->done_q); 1473cd98e85aSSteve Longerbeam chan->current_run = NULL; 1474cd98e85aSSteve Longerbeam } 1475cd98e85aSSteve Longerbeam } 1476cd98e85aSSteve Longerbeam 1477cd98e85aSSteve Longerbeam static void empty_done_q(struct ipu_image_convert_chan *chan) 1478cd98e85aSSteve Longerbeam { 1479cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1480cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1481cd98e85aSSteve Longerbeam unsigned long flags; 1482cd98e85aSSteve Longerbeam 1483cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1484cd98e85aSSteve Longerbeam 1485cd98e85aSSteve Longerbeam while (!list_empty(&chan->done_q)) { 1486cd98e85aSSteve Longerbeam run = list_entry(chan->done_q.next, 1487cd98e85aSSteve Longerbeam struct ipu_image_convert_run, 1488cd98e85aSSteve Longerbeam list); 1489cd98e85aSSteve Longerbeam 1490cd98e85aSSteve Longerbeam list_del(&run->list); 1491cd98e85aSSteve Longerbeam 1492cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1493cd98e85aSSteve Longerbeam "%s: task %u: completing ctx %p run %p with %d\n", 1494cd98e85aSSteve Longerbeam __func__, chan->ic_task, run->ctx, run, run->status); 1495cd98e85aSSteve Longerbeam 1496cd98e85aSSteve Longerbeam /* call the completion callback and free the run */ 1497cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1498cd98e85aSSteve Longerbeam run->ctx->complete(run, run->ctx->complete_context); 1499cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1500cd98e85aSSteve Longerbeam } 1501cd98e85aSSteve Longerbeam 1502cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1503cd98e85aSSteve Longerbeam } 1504cd98e85aSSteve Longerbeam 1505cd98e85aSSteve Longerbeam /* 1506cd98e85aSSteve Longerbeam * the bottom half thread clears out the done_q, calling the 1507cd98e85aSSteve Longerbeam * completion handler for each. 1508cd98e85aSSteve Longerbeam */ 1509cd98e85aSSteve Longerbeam static irqreturn_t do_bh(int irq, void *dev_id) 1510cd98e85aSSteve Longerbeam { 1511cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = dev_id; 1512cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1513cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1514cd98e85aSSteve Longerbeam unsigned long flags; 1515cd98e85aSSteve Longerbeam 1516cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: enter\n", __func__, 1517cd98e85aSSteve Longerbeam chan->ic_task); 1518cd98e85aSSteve Longerbeam 1519cd98e85aSSteve Longerbeam empty_done_q(chan); 1520cd98e85aSSteve Longerbeam 1521cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1522cd98e85aSSteve Longerbeam 1523cd98e85aSSteve Longerbeam /* 1524cd98e85aSSteve Longerbeam * the done_q is cleared out, signal any contexts 1525cd98e85aSSteve Longerbeam * that are aborting that abort can complete. 1526cd98e85aSSteve Longerbeam */ 1527cd98e85aSSteve Longerbeam list_for_each_entry(ctx, &chan->ctx_list, list) { 1528cd98e85aSSteve Longerbeam if (ctx->aborting) { 1529cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1530cd98e85aSSteve Longerbeam "%s: task %u: signaling abort for ctx %p\n", 1531cd98e85aSSteve Longerbeam __func__, chan->ic_task, ctx); 1532aa60b261SSteve Longerbeam complete_all(&ctx->aborted); 1533cd98e85aSSteve Longerbeam } 1534cd98e85aSSteve Longerbeam } 1535cd98e85aSSteve Longerbeam 1536cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1537cd98e85aSSteve Longerbeam 1538cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: exit\n", __func__, 1539cd98e85aSSteve Longerbeam chan->ic_task); 1540cd98e85aSSteve Longerbeam 1541cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1542cd98e85aSSteve Longerbeam } 1543cd98e85aSSteve Longerbeam 15440537db80SPhilipp Zabel static bool ic_settings_changed(struct ipu_image_convert_ctx *ctx) 15450537db80SPhilipp Zabel { 15460537db80SPhilipp Zabel unsigned int cur_tile = ctx->next_tile - 1; 15470537db80SPhilipp Zabel unsigned int next_tile = ctx->next_tile; 15480537db80SPhilipp Zabel 15490537db80SPhilipp Zabel if (ctx->resize_coeffs_h[cur_tile % ctx->in.num_cols] != 15500537db80SPhilipp Zabel ctx->resize_coeffs_h[next_tile % ctx->in.num_cols] || 15510537db80SPhilipp Zabel ctx->resize_coeffs_v[cur_tile / ctx->in.num_cols] != 15520537db80SPhilipp Zabel ctx->resize_coeffs_v[next_tile / ctx->in.num_cols] || 15530537db80SPhilipp Zabel ctx->in.tile[cur_tile].width != ctx->in.tile[next_tile].width || 15540537db80SPhilipp Zabel ctx->in.tile[cur_tile].height != ctx->in.tile[next_tile].height || 15550537db80SPhilipp Zabel ctx->out.tile[cur_tile].width != ctx->out.tile[next_tile].width || 15560537db80SPhilipp Zabel ctx->out.tile[cur_tile].height != ctx->out.tile[next_tile].height) 15570537db80SPhilipp Zabel return true; 15580537db80SPhilipp Zabel 15590537db80SPhilipp Zabel return false; 15600537db80SPhilipp Zabel } 15610537db80SPhilipp Zabel 1562cd98e85aSSteve Longerbeam /* hold irqlock when calling */ 1563cd98e85aSSteve Longerbeam static irqreturn_t do_irq(struct ipu_image_convert_run *run) 1564cd98e85aSSteve Longerbeam { 1565cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 1566cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1567cd98e85aSSteve Longerbeam struct ipu_image_tile *src_tile, *dst_tile; 1568cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 1569cd98e85aSSteve Longerbeam struct ipu_image_convert_image *d_image = &ctx->out; 1570cd98e85aSSteve Longerbeam struct ipuv3_channel *outch; 1571cd98e85aSSteve Longerbeam unsigned int dst_idx; 1572cd98e85aSSteve Longerbeam 1573cd98e85aSSteve Longerbeam lockdep_assert_held(&chan->irqlock); 1574cd98e85aSSteve Longerbeam 1575cd98e85aSSteve Longerbeam outch = ipu_rot_mode_is_irt(ctx->rot_mode) ? 1576cd98e85aSSteve Longerbeam chan->rotation_out_chan : chan->out_chan; 1577cd98e85aSSteve Longerbeam 1578cd98e85aSSteve Longerbeam /* 1579cd98e85aSSteve Longerbeam * It is difficult to stop the channel DMA before the channels 1580cd98e85aSSteve Longerbeam * enter the paused state. Without double-buffering the channels 1581cd98e85aSSteve Longerbeam * are always in a paused state when the EOF irq occurs, so it 1582cd98e85aSSteve Longerbeam * is safe to stop the channels now. For double-buffering we 1583cd98e85aSSteve Longerbeam * just ignore the abort until the operation completes, when it 1584cd98e85aSSteve Longerbeam * is safe to shut down. 1585cd98e85aSSteve Longerbeam */ 1586cd98e85aSSteve Longerbeam if (ctx->aborting && !ctx->double_buffering) { 1587cd98e85aSSteve Longerbeam convert_stop(run); 1588cd98e85aSSteve Longerbeam run->status = -EIO; 1589cd98e85aSSteve Longerbeam goto done; 1590cd98e85aSSteve Longerbeam } 1591cd98e85aSSteve Longerbeam 1592cd98e85aSSteve Longerbeam if (ctx->next_tile == ctx->num_tiles) { 1593cd98e85aSSteve Longerbeam /* 1594cd98e85aSSteve Longerbeam * the conversion is complete 1595cd98e85aSSteve Longerbeam */ 1596cd98e85aSSteve Longerbeam convert_stop(run); 1597cd98e85aSSteve Longerbeam run->status = 0; 1598cd98e85aSSteve Longerbeam goto done; 1599cd98e85aSSteve Longerbeam } 1600cd98e85aSSteve Longerbeam 1601cd98e85aSSteve Longerbeam /* 1602cd98e85aSSteve Longerbeam * not done, place the next tile buffers. 1603cd98e85aSSteve Longerbeam */ 1604cd98e85aSSteve Longerbeam if (!ctx->double_buffering) { 16050537db80SPhilipp Zabel if (ic_settings_changed(ctx)) { 16060537db80SPhilipp Zabel convert_stop(run); 16070537db80SPhilipp Zabel convert_start(run, ctx->next_tile); 16080537db80SPhilipp Zabel } else { 1609cd98e85aSSteve Longerbeam src_tile = &s_image->tile[ctx->next_tile]; 1610cd98e85aSSteve Longerbeam dst_idx = ctx->out_tile_map[ctx->next_tile]; 1611cd98e85aSSteve Longerbeam dst_tile = &d_image->tile[dst_idx]; 1612cd98e85aSSteve Longerbeam 1613cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(chan->in_chan, 0, 16140537db80SPhilipp Zabel s_image->base.phys0 + 16150537db80SPhilipp Zabel src_tile->offset); 1616cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(outch, 0, 16170537db80SPhilipp Zabel d_image->base.phys0 + 16180537db80SPhilipp Zabel dst_tile->offset); 1619cd98e85aSSteve Longerbeam if (s_image->fmt->planar) 1620cd98e85aSSteve Longerbeam ipu_cpmem_set_uv_offset(chan->in_chan, 1621cd98e85aSSteve Longerbeam src_tile->u_off, 1622cd98e85aSSteve Longerbeam src_tile->v_off); 1623cd98e85aSSteve Longerbeam if (d_image->fmt->planar) 1624cd98e85aSSteve Longerbeam ipu_cpmem_set_uv_offset(outch, 1625cd98e85aSSteve Longerbeam dst_tile->u_off, 1626cd98e85aSSteve Longerbeam dst_tile->v_off); 1627cd98e85aSSteve Longerbeam 1628cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, 0); 1629cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(outch, 0); 16300537db80SPhilipp Zabel } 1631cd98e85aSSteve Longerbeam } else if (ctx->next_tile < ctx->num_tiles - 1) { 1632cd98e85aSSteve Longerbeam 1633cd98e85aSSteve Longerbeam src_tile = &s_image->tile[ctx->next_tile + 1]; 1634cd98e85aSSteve Longerbeam dst_idx = ctx->out_tile_map[ctx->next_tile + 1]; 1635cd98e85aSSteve Longerbeam dst_tile = &d_image->tile[dst_idx]; 1636cd98e85aSSteve Longerbeam 1637cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(chan->in_chan, ctx->cur_buf_num, 1638cd98e85aSSteve Longerbeam s_image->base.phys0 + src_tile->offset); 1639cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(outch, ctx->cur_buf_num, 1640cd98e85aSSteve Longerbeam d_image->base.phys0 + dst_tile->offset); 1641cd98e85aSSteve Longerbeam 1642cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, ctx->cur_buf_num); 1643cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(outch, ctx->cur_buf_num); 1644cd98e85aSSteve Longerbeam 1645cd98e85aSSteve Longerbeam ctx->cur_buf_num ^= 1; 1646cd98e85aSSteve Longerbeam } 1647cd98e85aSSteve Longerbeam 1648cd98e85aSSteve Longerbeam ctx->next_tile++; 1649cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1650cd98e85aSSteve Longerbeam done: 1651cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->done_q); 1652cd98e85aSSteve Longerbeam chan->current_run = NULL; 1653cd98e85aSSteve Longerbeam run_next(chan); 1654cd98e85aSSteve Longerbeam return IRQ_WAKE_THREAD; 1655cd98e85aSSteve Longerbeam } 1656cd98e85aSSteve Longerbeam 1657cd98e85aSSteve Longerbeam static irqreturn_t norotate_irq(int irq, void *data) 1658cd98e85aSSteve Longerbeam { 1659cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = data; 1660cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1661cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1662cd98e85aSSteve Longerbeam unsigned long flags; 1663cd98e85aSSteve Longerbeam irqreturn_t ret; 1664cd98e85aSSteve Longerbeam 1665cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1666cd98e85aSSteve Longerbeam 1667cd98e85aSSteve Longerbeam /* get current run and its context */ 1668cd98e85aSSteve Longerbeam run = chan->current_run; 1669cd98e85aSSteve Longerbeam if (!run) { 1670cd98e85aSSteve Longerbeam ret = IRQ_NONE; 1671cd98e85aSSteve Longerbeam goto out; 1672cd98e85aSSteve Longerbeam } 1673cd98e85aSSteve Longerbeam 1674cd98e85aSSteve Longerbeam ctx = run->ctx; 1675cd98e85aSSteve Longerbeam 1676cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1677cd98e85aSSteve Longerbeam /* this is a rotation operation, just ignore */ 1678cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1679cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1680cd98e85aSSteve Longerbeam } 1681cd98e85aSSteve Longerbeam 1682cd98e85aSSteve Longerbeam ret = do_irq(run); 1683cd98e85aSSteve Longerbeam out: 1684cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1685cd98e85aSSteve Longerbeam return ret; 1686cd98e85aSSteve Longerbeam } 1687cd98e85aSSteve Longerbeam 1688cd98e85aSSteve Longerbeam static irqreturn_t rotate_irq(int irq, void *data) 1689cd98e85aSSteve Longerbeam { 1690cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = data; 1691cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1692cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1693cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1694cd98e85aSSteve Longerbeam unsigned long flags; 1695cd98e85aSSteve Longerbeam irqreturn_t ret; 1696cd98e85aSSteve Longerbeam 1697cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1698cd98e85aSSteve Longerbeam 1699cd98e85aSSteve Longerbeam /* get current run and its context */ 1700cd98e85aSSteve Longerbeam run = chan->current_run; 1701cd98e85aSSteve Longerbeam if (!run) { 1702cd98e85aSSteve Longerbeam ret = IRQ_NONE; 1703cd98e85aSSteve Longerbeam goto out; 1704cd98e85aSSteve Longerbeam } 1705cd98e85aSSteve Longerbeam 1706cd98e85aSSteve Longerbeam ctx = run->ctx; 1707cd98e85aSSteve Longerbeam 1708cd98e85aSSteve Longerbeam if (!ipu_rot_mode_is_irt(ctx->rot_mode)) { 1709cd98e85aSSteve Longerbeam /* this was NOT a rotation operation, shouldn't happen */ 1710cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "Unexpected rotation interrupt\n"); 1711cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1712cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1713cd98e85aSSteve Longerbeam } 1714cd98e85aSSteve Longerbeam 1715cd98e85aSSteve Longerbeam ret = do_irq(run); 1716cd98e85aSSteve Longerbeam out: 1717cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1718cd98e85aSSteve Longerbeam return ret; 1719cd98e85aSSteve Longerbeam } 1720cd98e85aSSteve Longerbeam 1721cd98e85aSSteve Longerbeam /* 1722cd98e85aSSteve Longerbeam * try to force the completion of runs for this ctx. Called when 1723cd98e85aSSteve Longerbeam * abort wait times out in ipu_image_convert_abort(). 1724cd98e85aSSteve Longerbeam */ 1725cd98e85aSSteve Longerbeam static void force_abort(struct ipu_image_convert_ctx *ctx) 1726cd98e85aSSteve Longerbeam { 1727cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1728cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1729cd98e85aSSteve Longerbeam unsigned long flags; 1730cd98e85aSSteve Longerbeam 1731cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1732cd98e85aSSteve Longerbeam 1733cd98e85aSSteve Longerbeam run = chan->current_run; 1734cd98e85aSSteve Longerbeam if (run && run->ctx == ctx) { 1735cd98e85aSSteve Longerbeam convert_stop(run); 1736cd98e85aSSteve Longerbeam run->status = -EIO; 1737cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->done_q); 1738cd98e85aSSteve Longerbeam chan->current_run = NULL; 1739cd98e85aSSteve Longerbeam run_next(chan); 1740cd98e85aSSteve Longerbeam } 1741cd98e85aSSteve Longerbeam 1742cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1743cd98e85aSSteve Longerbeam 1744cd98e85aSSteve Longerbeam empty_done_q(chan); 1745cd98e85aSSteve Longerbeam } 1746cd98e85aSSteve Longerbeam 1747cd98e85aSSteve Longerbeam static void release_ipu_resources(struct ipu_image_convert_chan *chan) 1748cd98e85aSSteve Longerbeam { 1749cd98e85aSSteve Longerbeam if (chan->out_eof_irq >= 0) 1750cd98e85aSSteve Longerbeam free_irq(chan->out_eof_irq, chan); 1751cd98e85aSSteve Longerbeam if (chan->rot_out_eof_irq >= 0) 1752cd98e85aSSteve Longerbeam free_irq(chan->rot_out_eof_irq, chan); 1753cd98e85aSSteve Longerbeam 1754cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->in_chan)) 1755cd98e85aSSteve Longerbeam ipu_idmac_put(chan->in_chan); 1756cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->out_chan)) 1757cd98e85aSSteve Longerbeam ipu_idmac_put(chan->out_chan); 1758cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->rotation_in_chan)) 1759cd98e85aSSteve Longerbeam ipu_idmac_put(chan->rotation_in_chan); 1760cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->rotation_out_chan)) 1761cd98e85aSSteve Longerbeam ipu_idmac_put(chan->rotation_out_chan); 1762cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->ic)) 1763cd98e85aSSteve Longerbeam ipu_ic_put(chan->ic); 1764cd98e85aSSteve Longerbeam 1765cd98e85aSSteve Longerbeam chan->in_chan = chan->out_chan = chan->rotation_in_chan = 1766cd98e85aSSteve Longerbeam chan->rotation_out_chan = NULL; 1767cd98e85aSSteve Longerbeam chan->out_eof_irq = chan->rot_out_eof_irq = -1; 1768cd98e85aSSteve Longerbeam } 1769cd98e85aSSteve Longerbeam 1770cd98e85aSSteve Longerbeam static int get_ipu_resources(struct ipu_image_convert_chan *chan) 1771cd98e85aSSteve Longerbeam { 1772cd98e85aSSteve Longerbeam const struct ipu_image_convert_dma_chan *dma = chan->dma_ch; 1773cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1774cd98e85aSSteve Longerbeam int ret; 1775cd98e85aSSteve Longerbeam 1776cd98e85aSSteve Longerbeam /* get IC */ 1777cd98e85aSSteve Longerbeam chan->ic = ipu_ic_get(priv->ipu, chan->ic_task); 1778cd98e85aSSteve Longerbeam if (IS_ERR(chan->ic)) { 1779cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire IC\n"); 1780cd98e85aSSteve Longerbeam ret = PTR_ERR(chan->ic); 1781cd98e85aSSteve Longerbeam goto err; 1782cd98e85aSSteve Longerbeam } 1783cd98e85aSSteve Longerbeam 1784cd98e85aSSteve Longerbeam /* get IDMAC channels */ 1785cd98e85aSSteve Longerbeam chan->in_chan = ipu_idmac_get(priv->ipu, dma->in); 1786cd98e85aSSteve Longerbeam chan->out_chan = ipu_idmac_get(priv->ipu, dma->out); 1787cd98e85aSSteve Longerbeam if (IS_ERR(chan->in_chan) || IS_ERR(chan->out_chan)) { 1788cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire idmac channels\n"); 1789cd98e85aSSteve Longerbeam ret = -EBUSY; 1790cd98e85aSSteve Longerbeam goto err; 1791cd98e85aSSteve Longerbeam } 1792cd98e85aSSteve Longerbeam 1793cd98e85aSSteve Longerbeam chan->rotation_in_chan = ipu_idmac_get(priv->ipu, dma->rot_in); 1794cd98e85aSSteve Longerbeam chan->rotation_out_chan = ipu_idmac_get(priv->ipu, dma->rot_out); 1795cd98e85aSSteve Longerbeam if (IS_ERR(chan->rotation_in_chan) || IS_ERR(chan->rotation_out_chan)) { 1796cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, 1797cd98e85aSSteve Longerbeam "could not acquire idmac rotation channels\n"); 1798cd98e85aSSteve Longerbeam ret = -EBUSY; 1799cd98e85aSSteve Longerbeam goto err; 1800cd98e85aSSteve Longerbeam } 1801cd98e85aSSteve Longerbeam 1802cd98e85aSSteve Longerbeam /* acquire the EOF interrupts */ 1803cd98e85aSSteve Longerbeam chan->out_eof_irq = ipu_idmac_channel_irq(priv->ipu, 1804cd98e85aSSteve Longerbeam chan->out_chan, 1805cd98e85aSSteve Longerbeam IPU_IRQ_EOF); 1806cd98e85aSSteve Longerbeam 1807cd98e85aSSteve Longerbeam ret = request_threaded_irq(chan->out_eof_irq, norotate_irq, do_bh, 1808cd98e85aSSteve Longerbeam 0, "ipu-ic", chan); 1809cd98e85aSSteve Longerbeam if (ret < 0) { 1810cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire irq %d\n", 1811cd98e85aSSteve Longerbeam chan->out_eof_irq); 1812cd98e85aSSteve Longerbeam chan->out_eof_irq = -1; 1813cd98e85aSSteve Longerbeam goto err; 1814cd98e85aSSteve Longerbeam } 1815cd98e85aSSteve Longerbeam 1816cd98e85aSSteve Longerbeam chan->rot_out_eof_irq = ipu_idmac_channel_irq(priv->ipu, 1817cd98e85aSSteve Longerbeam chan->rotation_out_chan, 1818cd98e85aSSteve Longerbeam IPU_IRQ_EOF); 1819cd98e85aSSteve Longerbeam 1820cd98e85aSSteve Longerbeam ret = request_threaded_irq(chan->rot_out_eof_irq, rotate_irq, do_bh, 1821cd98e85aSSteve Longerbeam 0, "ipu-ic", chan); 1822cd98e85aSSteve Longerbeam if (ret < 0) { 1823cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire irq %d\n", 1824cd98e85aSSteve Longerbeam chan->rot_out_eof_irq); 1825cd98e85aSSteve Longerbeam chan->rot_out_eof_irq = -1; 1826cd98e85aSSteve Longerbeam goto err; 1827cd98e85aSSteve Longerbeam } 1828cd98e85aSSteve Longerbeam 1829cd98e85aSSteve Longerbeam return 0; 1830cd98e85aSSteve Longerbeam err: 1831cd98e85aSSteve Longerbeam release_ipu_resources(chan); 1832cd98e85aSSteve Longerbeam return ret; 1833cd98e85aSSteve Longerbeam } 1834cd98e85aSSteve Longerbeam 1835cd98e85aSSteve Longerbeam static int fill_image(struct ipu_image_convert_ctx *ctx, 1836cd98e85aSSteve Longerbeam struct ipu_image_convert_image *ic_image, 1837cd98e85aSSteve Longerbeam struct ipu_image *image, 1838cd98e85aSSteve Longerbeam enum ipu_image_convert_type type) 1839cd98e85aSSteve Longerbeam { 1840cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = ctx->chan->priv; 1841cd98e85aSSteve Longerbeam 1842cd98e85aSSteve Longerbeam ic_image->base = *image; 1843cd98e85aSSteve Longerbeam ic_image->type = type; 1844cd98e85aSSteve Longerbeam 1845cd98e85aSSteve Longerbeam ic_image->fmt = get_format(image->pix.pixelformat); 1846cd98e85aSSteve Longerbeam if (!ic_image->fmt) { 1847cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "pixelformat not supported for %s\n", 1848cd98e85aSSteve Longerbeam type == IMAGE_CONVERT_OUT ? "Output" : "Input"); 1849cd98e85aSSteve Longerbeam return -EINVAL; 1850cd98e85aSSteve Longerbeam } 1851cd98e85aSSteve Longerbeam 1852cd98e85aSSteve Longerbeam if (ic_image->fmt->planar) 1853cd98e85aSSteve Longerbeam ic_image->stride = ic_image->base.pix.width; 1854cd98e85aSSteve Longerbeam else 1855cd98e85aSSteve Longerbeam ic_image->stride = ic_image->base.pix.bytesperline; 1856cd98e85aSSteve Longerbeam 185726ddd032SPhilipp Zabel return 0; 1858cd98e85aSSteve Longerbeam } 1859cd98e85aSSteve Longerbeam 1860cd98e85aSSteve Longerbeam /* borrowed from drivers/media/v4l2-core/v4l2-common.c */ 1861cd98e85aSSteve Longerbeam static unsigned int clamp_align(unsigned int x, unsigned int min, 1862cd98e85aSSteve Longerbeam unsigned int max, unsigned int align) 1863cd98e85aSSteve Longerbeam { 1864cd98e85aSSteve Longerbeam /* Bits that must be zero to be aligned */ 1865cd98e85aSSteve Longerbeam unsigned int mask = ~((1 << align) - 1); 1866cd98e85aSSteve Longerbeam 1867cd98e85aSSteve Longerbeam /* Clamp to aligned min and max */ 1868cd98e85aSSteve Longerbeam x = clamp(x, (min + ~mask) & mask, max & mask); 1869cd98e85aSSteve Longerbeam 1870cd98e85aSSteve Longerbeam /* Round to nearest aligned value */ 1871cd98e85aSSteve Longerbeam if (align) 1872cd98e85aSSteve Longerbeam x = (x + (1 << (align - 1))) & mask; 1873cd98e85aSSteve Longerbeam 1874cd98e85aSSteve Longerbeam return x; 1875cd98e85aSSteve Longerbeam } 1876cd98e85aSSteve Longerbeam 1877cd98e85aSSteve Longerbeam /* Adjusts input/output images to IPU restrictions */ 1878cd98e85aSSteve Longerbeam void ipu_image_convert_adjust(struct ipu_image *in, struct ipu_image *out, 1879cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1880cd98e85aSSteve Longerbeam { 1881cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *infmt, *outfmt; 1882ff391ecdSSteve Longerbeam u32 w_align_out, h_align_out; 1883ff391ecdSSteve Longerbeam u32 w_align_in, h_align_in; 1884cd98e85aSSteve Longerbeam 1885cd98e85aSSteve Longerbeam infmt = get_format(in->pix.pixelformat); 1886cd98e85aSSteve Longerbeam outfmt = get_format(out->pix.pixelformat); 1887cd98e85aSSteve Longerbeam 1888cd98e85aSSteve Longerbeam /* set some default pixel formats if needed */ 1889cd98e85aSSteve Longerbeam if (!infmt) { 1890cd98e85aSSteve Longerbeam in->pix.pixelformat = V4L2_PIX_FMT_RGB24; 1891cd98e85aSSteve Longerbeam infmt = get_format(V4L2_PIX_FMT_RGB24); 1892cd98e85aSSteve Longerbeam } 1893cd98e85aSSteve Longerbeam if (!outfmt) { 1894cd98e85aSSteve Longerbeam out->pix.pixelformat = V4L2_PIX_FMT_RGB24; 1895cd98e85aSSteve Longerbeam outfmt = get_format(V4L2_PIX_FMT_RGB24); 1896cd98e85aSSteve Longerbeam } 1897cd98e85aSSteve Longerbeam 1898cd98e85aSSteve Longerbeam /* image converter does not handle fields */ 1899cd98e85aSSteve Longerbeam in->pix.field = out->pix.field = V4L2_FIELD_NONE; 1900cd98e85aSSteve Longerbeam 1901cd98e85aSSteve Longerbeam /* resizer cannot downsize more than 4:1 */ 1902cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(rot_mode)) { 1903cd98e85aSSteve Longerbeam out->pix.height = max_t(__u32, out->pix.height, 1904cd98e85aSSteve Longerbeam in->pix.width / 4); 1905cd98e85aSSteve Longerbeam out->pix.width = max_t(__u32, out->pix.width, 1906cd98e85aSSteve Longerbeam in->pix.height / 4); 1907cd98e85aSSteve Longerbeam } else { 1908cd98e85aSSteve Longerbeam out->pix.width = max_t(__u32, out->pix.width, 1909cd98e85aSSteve Longerbeam in->pix.width / 4); 1910cd98e85aSSteve Longerbeam out->pix.height = max_t(__u32, out->pix.height, 1911cd98e85aSSteve Longerbeam in->pix.height / 4); 1912cd98e85aSSteve Longerbeam } 1913cd98e85aSSteve Longerbeam 1914cd98e85aSSteve Longerbeam /* align input width/height */ 1915ff391ecdSSteve Longerbeam w_align_in = ilog2(tile_width_align(IMAGE_CONVERT_IN, infmt, 1916ff391ecdSSteve Longerbeam rot_mode)); 1917ff391ecdSSteve Longerbeam h_align_in = ilog2(tile_height_align(IMAGE_CONVERT_IN, infmt, 1918ff391ecdSSteve Longerbeam rot_mode)); 1919ff391ecdSSteve Longerbeam in->pix.width = clamp_align(in->pix.width, MIN_W, MAX_W, 1920ff391ecdSSteve Longerbeam w_align_in); 1921ff391ecdSSteve Longerbeam in->pix.height = clamp_align(in->pix.height, MIN_H, MAX_H, 1922ff391ecdSSteve Longerbeam h_align_in); 1923cd98e85aSSteve Longerbeam 1924cd98e85aSSteve Longerbeam /* align output width/height */ 1925ff391ecdSSteve Longerbeam w_align_out = ilog2(tile_width_align(IMAGE_CONVERT_OUT, outfmt, 1926ff391ecdSSteve Longerbeam rot_mode)); 1927ff391ecdSSteve Longerbeam h_align_out = ilog2(tile_height_align(IMAGE_CONVERT_OUT, outfmt, 1928ff391ecdSSteve Longerbeam rot_mode)); 1929ff391ecdSSteve Longerbeam out->pix.width = clamp_align(out->pix.width, MIN_W, MAX_W, 1930ff391ecdSSteve Longerbeam w_align_out); 1931ff391ecdSSteve Longerbeam out->pix.height = clamp_align(out->pix.height, MIN_H, MAX_H, 1932ff391ecdSSteve Longerbeam h_align_out); 1933cd98e85aSSteve Longerbeam 1934cd98e85aSSteve Longerbeam /* set input/output strides and image sizes */ 1935d966e23dSPhilipp Zabel in->pix.bytesperline = infmt->planar ? 1936ff391ecdSSteve Longerbeam clamp_align(in->pix.width, 2 << w_align_in, MAX_W, 1937ff391ecdSSteve Longerbeam w_align_in) : 1938d966e23dSPhilipp Zabel clamp_align((in->pix.width * infmt->bpp) >> 3, 1939bca4d70cSSteve Longerbeam ((2 << w_align_in) * infmt->bpp) >> 3, 1940bca4d70cSSteve Longerbeam (MAX_W * infmt->bpp) >> 3, 1941bca4d70cSSteve Longerbeam w_align_in); 1942d966e23dSPhilipp Zabel in->pix.sizeimage = infmt->planar ? 1943d966e23dSPhilipp Zabel (in->pix.height * in->pix.bytesperline * infmt->bpp) >> 3 : 1944d966e23dSPhilipp Zabel in->pix.height * in->pix.bytesperline; 1945d966e23dSPhilipp Zabel out->pix.bytesperline = outfmt->planar ? out->pix.width : 1946d966e23dSPhilipp Zabel (out->pix.width * outfmt->bpp) >> 3; 1947d966e23dSPhilipp Zabel out->pix.sizeimage = outfmt->planar ? 1948d966e23dSPhilipp Zabel (out->pix.height * out->pix.bytesperline * outfmt->bpp) >> 3 : 1949d966e23dSPhilipp Zabel out->pix.height * out->pix.bytesperline; 1950cd98e85aSSteve Longerbeam } 1951cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_adjust); 1952cd98e85aSSteve Longerbeam 1953cd98e85aSSteve Longerbeam /* 1954cd98e85aSSteve Longerbeam * this is used by ipu_image_convert_prepare() to verify set input and 1955cd98e85aSSteve Longerbeam * output images are valid before starting the conversion. Clients can 1956cd98e85aSSteve Longerbeam * also call it before calling ipu_image_convert_prepare(). 1957cd98e85aSSteve Longerbeam */ 1958cd98e85aSSteve Longerbeam int ipu_image_convert_verify(struct ipu_image *in, struct ipu_image *out, 1959cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1960cd98e85aSSteve Longerbeam { 1961cd98e85aSSteve Longerbeam struct ipu_image testin, testout; 1962cd98e85aSSteve Longerbeam 1963cd98e85aSSteve Longerbeam testin = *in; 1964cd98e85aSSteve Longerbeam testout = *out; 1965cd98e85aSSteve Longerbeam 1966cd98e85aSSteve Longerbeam ipu_image_convert_adjust(&testin, &testout, rot_mode); 1967cd98e85aSSteve Longerbeam 1968cd98e85aSSteve Longerbeam if (testin.pix.width != in->pix.width || 1969cd98e85aSSteve Longerbeam testin.pix.height != in->pix.height || 1970cd98e85aSSteve Longerbeam testout.pix.width != out->pix.width || 1971cd98e85aSSteve Longerbeam testout.pix.height != out->pix.height) 1972cd98e85aSSteve Longerbeam return -EINVAL; 1973cd98e85aSSteve Longerbeam 1974cd98e85aSSteve Longerbeam return 0; 1975cd98e85aSSteve Longerbeam } 1976cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_verify); 1977cd98e85aSSteve Longerbeam 1978cd98e85aSSteve Longerbeam /* 1979cd98e85aSSteve Longerbeam * Call ipu_image_convert_prepare() to prepare for the conversion of 1980cd98e85aSSteve Longerbeam * given images and rotation mode. Returns a new conversion context. 1981cd98e85aSSteve Longerbeam */ 1982cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx * 1983cd98e85aSSteve Longerbeam ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task, 1984cd98e85aSSteve Longerbeam struct ipu_image *in, struct ipu_image *out, 1985cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode, 1986cd98e85aSSteve Longerbeam ipu_image_convert_cb_t complete, 1987cd98e85aSSteve Longerbeam void *complete_context) 1988cd98e85aSSteve Longerbeam { 1989cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = ipu->image_convert_priv; 1990cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image, *d_image; 1991cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan; 1992cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1993cd98e85aSSteve Longerbeam unsigned long flags; 1994f1ef14f3SPhilipp Zabel unsigned int i; 1995cd98e85aSSteve Longerbeam bool get_res; 1996cd98e85aSSteve Longerbeam int ret; 1997cd98e85aSSteve Longerbeam 1998cd98e85aSSteve Longerbeam if (!in || !out || !complete || 1999cd98e85aSSteve Longerbeam (ic_task != IC_TASK_VIEWFINDER && 2000cd98e85aSSteve Longerbeam ic_task != IC_TASK_POST_PROCESSOR)) 2001cd98e85aSSteve Longerbeam return ERR_PTR(-EINVAL); 2002cd98e85aSSteve Longerbeam 2003cd98e85aSSteve Longerbeam /* verify the in/out images before continuing */ 2004cd98e85aSSteve Longerbeam ret = ipu_image_convert_verify(in, out, rot_mode); 2005cd98e85aSSteve Longerbeam if (ret) { 2006cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "%s: in/out formats invalid\n", 2007cd98e85aSSteve Longerbeam __func__); 2008cd98e85aSSteve Longerbeam return ERR_PTR(ret); 2009cd98e85aSSteve Longerbeam } 2010cd98e85aSSteve Longerbeam 2011cd98e85aSSteve Longerbeam chan = &priv->chan[ic_task]; 2012cd98e85aSSteve Longerbeam 2013cd98e85aSSteve Longerbeam ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 2014cd98e85aSSteve Longerbeam if (!ctx) 2015cd98e85aSSteve Longerbeam return ERR_PTR(-ENOMEM); 2016cd98e85aSSteve Longerbeam 2017cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p\n", __func__, 2018cd98e85aSSteve Longerbeam chan->ic_task, ctx); 2019cd98e85aSSteve Longerbeam 2020cd98e85aSSteve Longerbeam ctx->chan = chan; 2021cd98e85aSSteve Longerbeam init_completion(&ctx->aborted); 2022cd98e85aSSteve Longerbeam 2023cd98e85aSSteve Longerbeam s_image = &ctx->in; 2024cd98e85aSSteve Longerbeam d_image = &ctx->out; 2025cd98e85aSSteve Longerbeam 2026cd98e85aSSteve Longerbeam /* set tiling and rotation */ 2027cd98e85aSSteve Longerbeam d_image->num_rows = num_stripes(out->pix.height); 2028cd98e85aSSteve Longerbeam d_image->num_cols = num_stripes(out->pix.width); 2029cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(rot_mode)) { 2030cd98e85aSSteve Longerbeam s_image->num_rows = d_image->num_cols; 2031cd98e85aSSteve Longerbeam s_image->num_cols = d_image->num_rows; 2032cd98e85aSSteve Longerbeam } else { 2033cd98e85aSSteve Longerbeam s_image->num_rows = d_image->num_rows; 2034cd98e85aSSteve Longerbeam s_image->num_cols = d_image->num_cols; 2035cd98e85aSSteve Longerbeam } 2036cd98e85aSSteve Longerbeam 2037cd98e85aSSteve Longerbeam ctx->num_tiles = d_image->num_cols * d_image->num_rows; 2038cd98e85aSSteve Longerbeam ctx->rot_mode = rot_mode; 2039cd98e85aSSteve Longerbeam 2040cd98e85aSSteve Longerbeam ret = fill_image(ctx, s_image, in, IMAGE_CONVERT_IN); 2041cd98e85aSSteve Longerbeam if (ret) 2042cd98e85aSSteve Longerbeam goto out_free; 2043cd98e85aSSteve Longerbeam ret = fill_image(ctx, d_image, out, IMAGE_CONVERT_OUT); 2044cd98e85aSSteve Longerbeam if (ret) 2045cd98e85aSSteve Longerbeam goto out_free; 2046cd98e85aSSteve Longerbeam 204726ddd032SPhilipp Zabel ret = calc_image_resize_coefficients(ctx, in, out); 204826ddd032SPhilipp Zabel if (ret) 204926ddd032SPhilipp Zabel goto out_free; 205026ddd032SPhilipp Zabel 205164fbae5eSPhilipp Zabel calc_out_tile_map(ctx); 205264fbae5eSPhilipp Zabel 205364fbae5eSPhilipp Zabel find_seams(ctx, s_image, d_image); 205464fbae5eSPhilipp Zabel 205526ddd032SPhilipp Zabel calc_tile_dimensions(ctx, s_image); 205626ddd032SPhilipp Zabel ret = calc_tile_offsets(ctx, s_image); 205726ddd032SPhilipp Zabel if (ret) 205826ddd032SPhilipp Zabel goto out_free; 205926ddd032SPhilipp Zabel 206026ddd032SPhilipp Zabel calc_tile_dimensions(ctx, d_image); 206126ddd032SPhilipp Zabel ret = calc_tile_offsets(ctx, d_image); 206226ddd032SPhilipp Zabel if (ret) 206326ddd032SPhilipp Zabel goto out_free; 206426ddd032SPhilipp Zabel 206570b9b6b3SPhilipp Zabel calc_tile_resize_coefficients(ctx); 2066cd98e85aSSteve Longerbeam 2067f208b26eSSteve Longerbeam ret = ipu_ic_calc_csc(&ctx->csc, 2068f208b26eSSteve Longerbeam s_image->base.pix.ycbcr_enc, 2069f208b26eSSteve Longerbeam s_image->base.pix.quantization, 2070f208b26eSSteve Longerbeam ipu_pixelformat_to_colorspace(s_image->fmt->fourcc), 2071f208b26eSSteve Longerbeam d_image->base.pix.ycbcr_enc, 2072f208b26eSSteve Longerbeam d_image->base.pix.quantization, 2073f208b26eSSteve Longerbeam ipu_pixelformat_to_colorspace(d_image->fmt->fourcc)); 2074f208b26eSSteve Longerbeam if (ret) 2075f208b26eSSteve Longerbeam goto out_free; 2076f208b26eSSteve Longerbeam 2077cd98e85aSSteve Longerbeam dump_format(ctx, s_image); 2078cd98e85aSSteve Longerbeam dump_format(ctx, d_image); 2079cd98e85aSSteve Longerbeam 2080cd98e85aSSteve Longerbeam ctx->complete = complete; 2081cd98e85aSSteve Longerbeam ctx->complete_context = complete_context; 2082cd98e85aSSteve Longerbeam 2083cd98e85aSSteve Longerbeam /* 2084cd98e85aSSteve Longerbeam * Can we use double-buffering for this operation? If there is 2085cd98e85aSSteve Longerbeam * only one tile (the whole image can be converted in a single 2086cd98e85aSSteve Longerbeam * operation) there's no point in using double-buffering. Also, 2087cd98e85aSSteve Longerbeam * the IPU's IDMAC channels allow only a single U and V plane 2088cd98e85aSSteve Longerbeam * offset shared between both buffers, but these offsets change 2089cd98e85aSSteve Longerbeam * for every tile, and therefore would have to be updated for 2090cd98e85aSSteve Longerbeam * each buffer which is not possible. So double-buffering is 2091cd98e85aSSteve Longerbeam * impossible when either the source or destination images are 2092f1ef14f3SPhilipp Zabel * a planar format (YUV420, YUV422P, etc.). Further, differently 2093f1ef14f3SPhilipp Zabel * sized tiles or different resizing coefficients per tile 2094f1ef14f3SPhilipp Zabel * prevent double-buffering as well. 2095cd98e85aSSteve Longerbeam */ 2096cd98e85aSSteve Longerbeam ctx->double_buffering = (ctx->num_tiles > 1 && 2097cd98e85aSSteve Longerbeam !s_image->fmt->planar && 2098cd98e85aSSteve Longerbeam !d_image->fmt->planar); 2099f1ef14f3SPhilipp Zabel for (i = 1; i < ctx->num_tiles; i++) { 2100f1ef14f3SPhilipp Zabel if (ctx->in.tile[i].width != ctx->in.tile[0].width || 2101f1ef14f3SPhilipp Zabel ctx->in.tile[i].height != ctx->in.tile[0].height || 2102f1ef14f3SPhilipp Zabel ctx->out.tile[i].width != ctx->out.tile[0].width || 2103f1ef14f3SPhilipp Zabel ctx->out.tile[i].height != ctx->out.tile[0].height) { 2104f1ef14f3SPhilipp Zabel ctx->double_buffering = false; 2105f1ef14f3SPhilipp Zabel break; 2106f1ef14f3SPhilipp Zabel } 2107f1ef14f3SPhilipp Zabel } 2108f1ef14f3SPhilipp Zabel for (i = 1; i < ctx->in.num_cols; i++) { 2109f1ef14f3SPhilipp Zabel if (ctx->resize_coeffs_h[i] != ctx->resize_coeffs_h[0]) { 2110f1ef14f3SPhilipp Zabel ctx->double_buffering = false; 2111f1ef14f3SPhilipp Zabel break; 2112f1ef14f3SPhilipp Zabel } 2113f1ef14f3SPhilipp Zabel } 2114f1ef14f3SPhilipp Zabel for (i = 1; i < ctx->in.num_rows; i++) { 2115f1ef14f3SPhilipp Zabel if (ctx->resize_coeffs_v[i] != ctx->resize_coeffs_v[0]) { 2116f1ef14f3SPhilipp Zabel ctx->double_buffering = false; 2117f1ef14f3SPhilipp Zabel break; 2118f1ef14f3SPhilipp Zabel } 2119f1ef14f3SPhilipp Zabel } 2120cd98e85aSSteve Longerbeam 2121cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 2122dd65d2a9SPhilipp Zabel unsigned long intermediate_size = d_image->tile[0].size; 2123dd65d2a9SPhilipp Zabel 2124dd65d2a9SPhilipp Zabel for (i = 1; i < ctx->num_tiles; i++) { 2125dd65d2a9SPhilipp Zabel if (d_image->tile[i].size > intermediate_size) 2126dd65d2a9SPhilipp Zabel intermediate_size = d_image->tile[i].size; 2127dd65d2a9SPhilipp Zabel } 2128dd65d2a9SPhilipp Zabel 2129cd98e85aSSteve Longerbeam ret = alloc_dma_buf(priv, &ctx->rot_intermediate[0], 2130dd65d2a9SPhilipp Zabel intermediate_size); 2131cd98e85aSSteve Longerbeam if (ret) 2132cd98e85aSSteve Longerbeam goto out_free; 2133cd98e85aSSteve Longerbeam if (ctx->double_buffering) { 2134cd98e85aSSteve Longerbeam ret = alloc_dma_buf(priv, 2135cd98e85aSSteve Longerbeam &ctx->rot_intermediate[1], 2136dd65d2a9SPhilipp Zabel intermediate_size); 2137cd98e85aSSteve Longerbeam if (ret) 2138cd98e85aSSteve Longerbeam goto out_free_dmabuf0; 2139cd98e85aSSteve Longerbeam } 2140cd98e85aSSteve Longerbeam } 2141cd98e85aSSteve Longerbeam 2142cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 2143cd98e85aSSteve Longerbeam 2144cd98e85aSSteve Longerbeam get_res = list_empty(&chan->ctx_list); 2145cd98e85aSSteve Longerbeam 2146cd98e85aSSteve Longerbeam list_add_tail(&ctx->list, &chan->ctx_list); 2147cd98e85aSSteve Longerbeam 2148cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 2149cd98e85aSSteve Longerbeam 2150cd98e85aSSteve Longerbeam if (get_res) { 2151cd98e85aSSteve Longerbeam ret = get_ipu_resources(chan); 2152cd98e85aSSteve Longerbeam if (ret) 2153cd98e85aSSteve Longerbeam goto out_free_dmabuf1; 2154cd98e85aSSteve Longerbeam } 2155cd98e85aSSteve Longerbeam 2156cd98e85aSSteve Longerbeam return ctx; 2157cd98e85aSSteve Longerbeam 2158cd98e85aSSteve Longerbeam out_free_dmabuf1: 2159cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[1]); 2160cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 2161cd98e85aSSteve Longerbeam list_del(&ctx->list); 2162cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 2163cd98e85aSSteve Longerbeam out_free_dmabuf0: 2164cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[0]); 2165cd98e85aSSteve Longerbeam out_free: 2166cd98e85aSSteve Longerbeam kfree(ctx); 2167cd98e85aSSteve Longerbeam return ERR_PTR(ret); 2168cd98e85aSSteve Longerbeam } 2169cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_prepare); 2170cd98e85aSSteve Longerbeam 2171cd98e85aSSteve Longerbeam /* 2172cd98e85aSSteve Longerbeam * Carry out a single image conversion run. Only the physaddr's of the input 2173cd98e85aSSteve Longerbeam * and output image buffers are needed. The conversion context must have 2174cd98e85aSSteve Longerbeam * been created previously with ipu_image_convert_prepare(). 2175cd98e85aSSteve Longerbeam */ 2176cd98e85aSSteve Longerbeam int ipu_image_convert_queue(struct ipu_image_convert_run *run) 2177cd98e85aSSteve Longerbeam { 2178cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan; 2179cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv; 2180cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 2181cd98e85aSSteve Longerbeam unsigned long flags; 2182cd98e85aSSteve Longerbeam int ret = 0; 2183cd98e85aSSteve Longerbeam 2184cd98e85aSSteve Longerbeam if (!run || !run->ctx || !run->in_phys || !run->out_phys) 2185cd98e85aSSteve Longerbeam return -EINVAL; 2186cd98e85aSSteve Longerbeam 2187cd98e85aSSteve Longerbeam ctx = run->ctx; 2188cd98e85aSSteve Longerbeam chan = ctx->chan; 2189cd98e85aSSteve Longerbeam priv = chan->priv; 2190cd98e85aSSteve Longerbeam 2191cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p run %p\n", __func__, 2192cd98e85aSSteve Longerbeam chan->ic_task, ctx, run); 2193cd98e85aSSteve Longerbeam 2194cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&run->list); 2195cd98e85aSSteve Longerbeam 2196cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 2197cd98e85aSSteve Longerbeam 2198cd98e85aSSteve Longerbeam if (ctx->aborting) { 2199cd98e85aSSteve Longerbeam ret = -EIO; 2200cd98e85aSSteve Longerbeam goto unlock; 2201cd98e85aSSteve Longerbeam } 2202cd98e85aSSteve Longerbeam 2203cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->pending_q); 2204cd98e85aSSteve Longerbeam 2205cd98e85aSSteve Longerbeam if (!chan->current_run) { 2206cd98e85aSSteve Longerbeam ret = do_run(run); 2207cd98e85aSSteve Longerbeam if (ret) 2208cd98e85aSSteve Longerbeam chan->current_run = NULL; 2209cd98e85aSSteve Longerbeam } 2210cd98e85aSSteve Longerbeam unlock: 2211cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 2212cd98e85aSSteve Longerbeam return ret; 2213cd98e85aSSteve Longerbeam } 2214cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_queue); 2215cd98e85aSSteve Longerbeam 2216cd98e85aSSteve Longerbeam /* Abort any active or pending conversions for this context */ 2217819bec35SSteve Longerbeam static void __ipu_image_convert_abort(struct ipu_image_convert_ctx *ctx) 2218cd98e85aSSteve Longerbeam { 2219cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 2220cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 2221cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run, *active_run, *tmp; 2222cd98e85aSSteve Longerbeam unsigned long flags; 2223cd98e85aSSteve Longerbeam int run_count, ret; 2224cd98e85aSSteve Longerbeam 2225cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 2226cd98e85aSSteve Longerbeam 2227cd98e85aSSteve Longerbeam /* move all remaining pending runs in this context to done_q */ 2228cd98e85aSSteve Longerbeam list_for_each_entry_safe(run, tmp, &chan->pending_q, list) { 2229cd98e85aSSteve Longerbeam if (run->ctx != ctx) 2230cd98e85aSSteve Longerbeam continue; 2231cd98e85aSSteve Longerbeam run->status = -EIO; 2232cd98e85aSSteve Longerbeam list_move_tail(&run->list, &chan->done_q); 2233cd98e85aSSteve Longerbeam } 2234cd98e85aSSteve Longerbeam 2235cd98e85aSSteve Longerbeam run_count = get_run_count(ctx, &chan->done_q); 2236cd98e85aSSteve Longerbeam active_run = (chan->current_run && chan->current_run->ctx == ctx) ? 2237cd98e85aSSteve Longerbeam chan->current_run : NULL; 2238cd98e85aSSteve Longerbeam 2239aa60b261SSteve Longerbeam if (active_run) 2240aa60b261SSteve Longerbeam reinit_completion(&ctx->aborted); 2241aa60b261SSteve Longerbeam 2242819bec35SSteve Longerbeam ctx->aborting = true; 2243cd98e85aSSteve Longerbeam 2244cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 2245cd98e85aSSteve Longerbeam 2246b288adadSSteve Longerbeam if (!run_count && !active_run) { 2247cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 2248cd98e85aSSteve Longerbeam "%s: task %u: no abort needed for ctx %p\n", 2249cd98e85aSSteve Longerbeam __func__, chan->ic_task, ctx); 2250cd98e85aSSteve Longerbeam return; 2251cd98e85aSSteve Longerbeam } 2252cd98e85aSSteve Longerbeam 2253920340aeSSteve Longerbeam if (!active_run) { 2254920340aeSSteve Longerbeam empty_done_q(chan); 2255920340aeSSteve Longerbeam return; 2256920340aeSSteve Longerbeam } 2257920340aeSSteve Longerbeam 2258cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 2259920340aeSSteve Longerbeam "%s: task %u: wait for completion: %d runs\n", 2260920340aeSSteve Longerbeam __func__, chan->ic_task, run_count); 2261cd98e85aSSteve Longerbeam 2262cd98e85aSSteve Longerbeam ret = wait_for_completion_timeout(&ctx->aborted, 2263cd98e85aSSteve Longerbeam msecs_to_jiffies(10000)); 2264cd98e85aSSteve Longerbeam if (ret == 0) { 2265cd98e85aSSteve Longerbeam dev_warn(priv->ipu->dev, "%s: timeout\n", __func__); 2266cd98e85aSSteve Longerbeam force_abort(ctx); 2267cd98e85aSSteve Longerbeam } 2268819bec35SSteve Longerbeam } 2269cd98e85aSSteve Longerbeam 2270819bec35SSteve Longerbeam void ipu_image_convert_abort(struct ipu_image_convert_ctx *ctx) 2271819bec35SSteve Longerbeam { 2272819bec35SSteve Longerbeam __ipu_image_convert_abort(ctx); 2273cd98e85aSSteve Longerbeam ctx->aborting = false; 2274cd98e85aSSteve Longerbeam } 2275cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_abort); 2276cd98e85aSSteve Longerbeam 2277cd98e85aSSteve Longerbeam /* Unprepare image conversion context */ 2278cd98e85aSSteve Longerbeam void ipu_image_convert_unprepare(struct ipu_image_convert_ctx *ctx) 2279cd98e85aSSteve Longerbeam { 2280cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 2281cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 2282cd98e85aSSteve Longerbeam unsigned long flags; 2283cd98e85aSSteve Longerbeam bool put_res; 2284cd98e85aSSteve Longerbeam 2285cd98e85aSSteve Longerbeam /* make sure no runs are hanging around */ 2286819bec35SSteve Longerbeam __ipu_image_convert_abort(ctx); 2287cd98e85aSSteve Longerbeam 2288cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: removing ctx %p\n", __func__, 2289cd98e85aSSteve Longerbeam chan->ic_task, ctx); 2290cd98e85aSSteve Longerbeam 2291cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 2292cd98e85aSSteve Longerbeam 2293cd98e85aSSteve Longerbeam list_del(&ctx->list); 2294cd98e85aSSteve Longerbeam 2295cd98e85aSSteve Longerbeam put_res = list_empty(&chan->ctx_list); 2296cd98e85aSSteve Longerbeam 2297cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 2298cd98e85aSSteve Longerbeam 2299cd98e85aSSteve Longerbeam if (put_res) 2300cd98e85aSSteve Longerbeam release_ipu_resources(chan); 2301cd98e85aSSteve Longerbeam 2302cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[1]); 2303cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[0]); 2304cd98e85aSSteve Longerbeam 2305cd98e85aSSteve Longerbeam kfree(ctx); 2306cd98e85aSSteve Longerbeam } 2307cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_unprepare); 2308cd98e85aSSteve Longerbeam 2309cd98e85aSSteve Longerbeam /* 2310cd98e85aSSteve Longerbeam * "Canned" asynchronous single image conversion. Allocates and returns 2311cd98e85aSSteve Longerbeam * a new conversion run. On successful return the caller must free the 2312cd98e85aSSteve Longerbeam * run and call ipu_image_convert_unprepare() after conversion completes. 2313cd98e85aSSteve Longerbeam */ 2314cd98e85aSSteve Longerbeam struct ipu_image_convert_run * 2315cd98e85aSSteve Longerbeam ipu_image_convert(struct ipu_soc *ipu, enum ipu_ic_task ic_task, 2316cd98e85aSSteve Longerbeam struct ipu_image *in, struct ipu_image *out, 2317cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode, 2318cd98e85aSSteve Longerbeam ipu_image_convert_cb_t complete, 2319cd98e85aSSteve Longerbeam void *complete_context) 2320cd98e85aSSteve Longerbeam { 2321cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 2322cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 2323cd98e85aSSteve Longerbeam int ret; 2324cd98e85aSSteve Longerbeam 2325cd98e85aSSteve Longerbeam ctx = ipu_image_convert_prepare(ipu, ic_task, in, out, rot_mode, 2326cd98e85aSSteve Longerbeam complete, complete_context); 2327cd98e85aSSteve Longerbeam if (IS_ERR(ctx)) 23284ad3e92cSWei Yongjun return ERR_CAST(ctx); 2329cd98e85aSSteve Longerbeam 2330cd98e85aSSteve Longerbeam run = kzalloc(sizeof(*run), GFP_KERNEL); 2331cd98e85aSSteve Longerbeam if (!run) { 2332cd98e85aSSteve Longerbeam ipu_image_convert_unprepare(ctx); 2333cd98e85aSSteve Longerbeam return ERR_PTR(-ENOMEM); 2334cd98e85aSSteve Longerbeam } 2335cd98e85aSSteve Longerbeam 2336cd98e85aSSteve Longerbeam run->ctx = ctx; 2337cd98e85aSSteve Longerbeam run->in_phys = in->phys0; 2338cd98e85aSSteve Longerbeam run->out_phys = out->phys0; 2339cd98e85aSSteve Longerbeam 2340cd98e85aSSteve Longerbeam ret = ipu_image_convert_queue(run); 2341cd98e85aSSteve Longerbeam if (ret) { 2342cd98e85aSSteve Longerbeam ipu_image_convert_unprepare(ctx); 2343cd98e85aSSteve Longerbeam kfree(run); 2344cd98e85aSSteve Longerbeam return ERR_PTR(ret); 2345cd98e85aSSteve Longerbeam } 2346cd98e85aSSteve Longerbeam 2347cd98e85aSSteve Longerbeam return run; 2348cd98e85aSSteve Longerbeam } 2349cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert); 2350cd98e85aSSteve Longerbeam 2351cd98e85aSSteve Longerbeam /* "Canned" synchronous single image conversion */ 2352cd98e85aSSteve Longerbeam static void image_convert_sync_complete(struct ipu_image_convert_run *run, 2353cd98e85aSSteve Longerbeam void *data) 2354cd98e85aSSteve Longerbeam { 2355cd98e85aSSteve Longerbeam struct completion *comp = data; 2356cd98e85aSSteve Longerbeam 2357cd98e85aSSteve Longerbeam complete(comp); 2358cd98e85aSSteve Longerbeam } 2359cd98e85aSSteve Longerbeam 2360cd98e85aSSteve Longerbeam int ipu_image_convert_sync(struct ipu_soc *ipu, enum ipu_ic_task ic_task, 2361cd98e85aSSteve Longerbeam struct ipu_image *in, struct ipu_image *out, 2362cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 2363cd98e85aSSteve Longerbeam { 2364cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 2365cd98e85aSSteve Longerbeam struct completion comp; 2366cd98e85aSSteve Longerbeam int ret; 2367cd98e85aSSteve Longerbeam 2368cd98e85aSSteve Longerbeam init_completion(&comp); 2369cd98e85aSSteve Longerbeam 2370cd98e85aSSteve Longerbeam run = ipu_image_convert(ipu, ic_task, in, out, rot_mode, 2371cd98e85aSSteve Longerbeam image_convert_sync_complete, &comp); 2372cd98e85aSSteve Longerbeam if (IS_ERR(run)) 2373cd98e85aSSteve Longerbeam return PTR_ERR(run); 2374cd98e85aSSteve Longerbeam 2375cd98e85aSSteve Longerbeam ret = wait_for_completion_timeout(&comp, msecs_to_jiffies(10000)); 2376cd98e85aSSteve Longerbeam ret = (ret == 0) ? -ETIMEDOUT : 0; 2377cd98e85aSSteve Longerbeam 2378cd98e85aSSteve Longerbeam ipu_image_convert_unprepare(run->ctx); 2379cd98e85aSSteve Longerbeam kfree(run); 2380cd98e85aSSteve Longerbeam 2381cd98e85aSSteve Longerbeam return ret; 2382cd98e85aSSteve Longerbeam } 2383cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_sync); 2384cd98e85aSSteve Longerbeam 2385cd98e85aSSteve Longerbeam int ipu_image_convert_init(struct ipu_soc *ipu, struct device *dev) 2386cd98e85aSSteve Longerbeam { 2387cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv; 2388cd98e85aSSteve Longerbeam int i; 2389cd98e85aSSteve Longerbeam 2390cd98e85aSSteve Longerbeam priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 2391cd98e85aSSteve Longerbeam if (!priv) 2392cd98e85aSSteve Longerbeam return -ENOMEM; 2393cd98e85aSSteve Longerbeam 2394cd98e85aSSteve Longerbeam ipu->image_convert_priv = priv; 2395cd98e85aSSteve Longerbeam priv->ipu = ipu; 2396cd98e85aSSteve Longerbeam 2397cd98e85aSSteve Longerbeam for (i = 0; i < IC_NUM_TASKS; i++) { 2398cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = &priv->chan[i]; 2399cd98e85aSSteve Longerbeam 2400cd98e85aSSteve Longerbeam chan->ic_task = i; 2401cd98e85aSSteve Longerbeam chan->priv = priv; 2402cd98e85aSSteve Longerbeam chan->dma_ch = &image_convert_dma_chan[i]; 2403cd98e85aSSteve Longerbeam chan->out_eof_irq = -1; 2404cd98e85aSSteve Longerbeam chan->rot_out_eof_irq = -1; 2405cd98e85aSSteve Longerbeam 2406cd98e85aSSteve Longerbeam spin_lock_init(&chan->irqlock); 2407cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&chan->ctx_list); 2408cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&chan->pending_q); 2409cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&chan->done_q); 2410cd98e85aSSteve Longerbeam } 2411cd98e85aSSteve Longerbeam 2412cd98e85aSSteve Longerbeam return 0; 2413cd98e85aSSteve Longerbeam } 2414cd98e85aSSteve Longerbeam 2415cd98e85aSSteve Longerbeam void ipu_image_convert_exit(struct ipu_soc *ipu) 2416cd98e85aSSteve Longerbeam { 2417cd98e85aSSteve Longerbeam } 2418