1cd98e85aSSteve Longerbeam /* 2cd98e85aSSteve Longerbeam * Copyright (C) 2012-2016 Mentor Graphics Inc. 3cd98e85aSSteve Longerbeam * 4cd98e85aSSteve Longerbeam * Queued image conversion support, with tiling and rotation. 5cd98e85aSSteve Longerbeam * 6cd98e85aSSteve Longerbeam * This program is free software; you can redistribute it and/or modify it 7cd98e85aSSteve Longerbeam * under the terms of the GNU General Public License as published by the 8cd98e85aSSteve Longerbeam * Free Software Foundation; either version 2 of the License, or (at your 9cd98e85aSSteve Longerbeam * option) any later version. 10cd98e85aSSteve Longerbeam * 11cd98e85aSSteve Longerbeam * This program is distributed in the hope that it will be useful, but 12cd98e85aSSteve Longerbeam * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13cd98e85aSSteve Longerbeam * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14cd98e85aSSteve Longerbeam * for more details. 15cd98e85aSSteve Longerbeam */ 16cd98e85aSSteve Longerbeam 17cd98e85aSSteve Longerbeam #include <linux/interrupt.h> 18cd98e85aSSteve Longerbeam #include <linux/dma-mapping.h> 19cd98e85aSSteve Longerbeam #include <video/imx-ipu-image-convert.h> 20cd98e85aSSteve Longerbeam #include "ipu-prv.h" 21cd98e85aSSteve Longerbeam 22cd98e85aSSteve Longerbeam /* 23cd98e85aSSteve Longerbeam * The IC Resizer has a restriction that the output frame from the 24cd98e85aSSteve Longerbeam * resizer must be 1024 or less in both width (pixels) and height 25cd98e85aSSteve Longerbeam * (lines). 26cd98e85aSSteve Longerbeam * 27cd98e85aSSteve Longerbeam * The image converter attempts to split up a conversion when 28cd98e85aSSteve Longerbeam * the desired output (converted) frame resolution exceeds the 29cd98e85aSSteve Longerbeam * IC resizer limit of 1024 in either dimension. 30cd98e85aSSteve Longerbeam * 31cd98e85aSSteve Longerbeam * If either dimension of the output frame exceeds the limit, the 32cd98e85aSSteve Longerbeam * dimension is split into 1, 2, or 4 equal stripes, for a maximum 33cd98e85aSSteve Longerbeam * of 4*4 or 16 tiles. A conversion is then carried out for each 34cd98e85aSSteve Longerbeam * tile (but taking care to pass the full frame stride length to 35cd98e85aSSteve Longerbeam * the DMA channel's parameter memory!). IDMA double-buffering is used 36cd98e85aSSteve Longerbeam * to convert each tile back-to-back when possible (see note below 37cd98e85aSSteve Longerbeam * when double_buffering boolean is set). 38cd98e85aSSteve Longerbeam * 39cd98e85aSSteve Longerbeam * Note that the input frame must be split up into the same number 40cd98e85aSSteve Longerbeam * of tiles as the output frame. 41cd98e85aSSteve Longerbeam * 42cd98e85aSSteve Longerbeam * FIXME: at this point there is no attempt to deal with visible seams 43cd98e85aSSteve Longerbeam * at the tile boundaries when upscaling. The seams are caused by a reset 44cd98e85aSSteve Longerbeam * of the bilinear upscale interpolation when starting a new tile. The 45cd98e85aSSteve Longerbeam * seams are barely visible for small upscale factors, but become 46cd98e85aSSteve Longerbeam * increasingly visible as the upscale factor gets larger, since more 47cd98e85aSSteve Longerbeam * interpolated pixels get thrown out at the tile boundaries. A possilble 48cd98e85aSSteve Longerbeam * fix might be to overlap tiles of different sizes, but this must be done 49cd98e85aSSteve Longerbeam * while also maintaining the IDMAC dma buffer address alignment and 8x8 IRT 50cd98e85aSSteve Longerbeam * alignment restrictions of each tile. 51cd98e85aSSteve Longerbeam */ 52cd98e85aSSteve Longerbeam 53cd98e85aSSteve Longerbeam #define MAX_STRIPES_W 4 54cd98e85aSSteve Longerbeam #define MAX_STRIPES_H 4 55cd98e85aSSteve Longerbeam #define MAX_TILES (MAX_STRIPES_W * MAX_STRIPES_H) 56cd98e85aSSteve Longerbeam 57cd98e85aSSteve Longerbeam #define MIN_W 16 58cd98e85aSSteve Longerbeam #define MIN_H 8 59cd98e85aSSteve Longerbeam #define MAX_W 4096 60cd98e85aSSteve Longerbeam #define MAX_H 4096 61cd98e85aSSteve Longerbeam 62cd98e85aSSteve Longerbeam enum ipu_image_convert_type { 63cd98e85aSSteve Longerbeam IMAGE_CONVERT_IN = 0, 64cd98e85aSSteve Longerbeam IMAGE_CONVERT_OUT, 65cd98e85aSSteve Longerbeam }; 66cd98e85aSSteve Longerbeam 67cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf { 68cd98e85aSSteve Longerbeam void *virt; 69cd98e85aSSteve Longerbeam dma_addr_t phys; 70cd98e85aSSteve Longerbeam unsigned long len; 71cd98e85aSSteve Longerbeam }; 72cd98e85aSSteve Longerbeam 73cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_chan { 74cd98e85aSSteve Longerbeam int in; 75cd98e85aSSteve Longerbeam int out; 76cd98e85aSSteve Longerbeam int rot_in; 77cd98e85aSSteve Longerbeam int rot_out; 78cd98e85aSSteve Longerbeam int vdi_in_p; 79cd98e85aSSteve Longerbeam int vdi_in; 80cd98e85aSSteve Longerbeam int vdi_in_n; 81cd98e85aSSteve Longerbeam }; 82cd98e85aSSteve Longerbeam 83cd98e85aSSteve Longerbeam /* dimensions of one tile */ 84cd98e85aSSteve Longerbeam struct ipu_image_tile { 85cd98e85aSSteve Longerbeam u32 width; 86cd98e85aSSteve Longerbeam u32 height; 87571dd82cSPhilipp Zabel u32 left; 88571dd82cSPhilipp Zabel u32 top; 89cd98e85aSSteve Longerbeam /* size and strides are in bytes */ 90cd98e85aSSteve Longerbeam u32 size; 91cd98e85aSSteve Longerbeam u32 stride; 92cd98e85aSSteve Longerbeam u32 rot_stride; 93cd98e85aSSteve Longerbeam /* start Y or packed offset of this tile */ 94cd98e85aSSteve Longerbeam u32 offset; 95cd98e85aSSteve Longerbeam /* offset from start to tile in U plane, for planar formats */ 96cd98e85aSSteve Longerbeam u32 u_off; 97cd98e85aSSteve Longerbeam /* offset from start to tile in V plane, for planar formats */ 98cd98e85aSSteve Longerbeam u32 v_off; 99cd98e85aSSteve Longerbeam }; 100cd98e85aSSteve Longerbeam 101cd98e85aSSteve Longerbeam struct ipu_image_convert_image { 102cd98e85aSSteve Longerbeam struct ipu_image base; 103cd98e85aSSteve Longerbeam enum ipu_image_convert_type type; 104cd98e85aSSteve Longerbeam 105cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt; 106cd98e85aSSteve Longerbeam unsigned int stride; 107cd98e85aSSteve Longerbeam 108cd98e85aSSteve Longerbeam /* # of rows (horizontal stripes) if dest height is > 1024 */ 109cd98e85aSSteve Longerbeam unsigned int num_rows; 110cd98e85aSSteve Longerbeam /* # of columns (vertical stripes) if dest width is > 1024 */ 111cd98e85aSSteve Longerbeam unsigned int num_cols; 112cd98e85aSSteve Longerbeam 113cd98e85aSSteve Longerbeam struct ipu_image_tile tile[MAX_TILES]; 114cd98e85aSSteve Longerbeam }; 115cd98e85aSSteve Longerbeam 116cd98e85aSSteve Longerbeam struct ipu_image_pixfmt { 117cd98e85aSSteve Longerbeam u32 fourcc; /* V4L2 fourcc */ 118cd98e85aSSteve Longerbeam int bpp; /* total bpp */ 119cd98e85aSSteve Longerbeam int uv_width_dec; /* decimation in width for U/V planes */ 120cd98e85aSSteve Longerbeam int uv_height_dec; /* decimation in height for U/V planes */ 121cd98e85aSSteve Longerbeam bool planar; /* planar format */ 122cd98e85aSSteve Longerbeam bool uv_swapped; /* U and V planes are swapped */ 123cd98e85aSSteve Longerbeam bool uv_packed; /* partial planar (U and V in same plane) */ 124cd98e85aSSteve Longerbeam }; 125cd98e85aSSteve Longerbeam 126cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx; 127cd98e85aSSteve Longerbeam struct ipu_image_convert_chan; 128cd98e85aSSteve Longerbeam struct ipu_image_convert_priv; 129cd98e85aSSteve Longerbeam 130cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx { 131cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan; 132cd98e85aSSteve Longerbeam 133cd98e85aSSteve Longerbeam ipu_image_convert_cb_t complete; 134cd98e85aSSteve Longerbeam void *complete_context; 135cd98e85aSSteve Longerbeam 136cd98e85aSSteve Longerbeam /* Source/destination image data and rotation mode */ 137cd98e85aSSteve Longerbeam struct ipu_image_convert_image in; 138cd98e85aSSteve Longerbeam struct ipu_image_convert_image out; 139cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode; 14070b9b6b3SPhilipp Zabel u32 downsize_coeff_h; 14170b9b6b3SPhilipp Zabel u32 downsize_coeff_v; 14270b9b6b3SPhilipp Zabel u32 image_resize_coeff_h; 14370b9b6b3SPhilipp Zabel u32 image_resize_coeff_v; 14470b9b6b3SPhilipp Zabel u32 resize_coeffs_h[MAX_STRIPES_W]; 14570b9b6b3SPhilipp Zabel u32 resize_coeffs_v[MAX_STRIPES_H]; 146cd98e85aSSteve Longerbeam 147cd98e85aSSteve Longerbeam /* intermediate buffer for rotation */ 148cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf rot_intermediate[2]; 149cd98e85aSSteve Longerbeam 150cd98e85aSSteve Longerbeam /* current buffer number for double buffering */ 151cd98e85aSSteve Longerbeam int cur_buf_num; 152cd98e85aSSteve Longerbeam 153cd98e85aSSteve Longerbeam bool aborting; 154cd98e85aSSteve Longerbeam struct completion aborted; 155cd98e85aSSteve Longerbeam 156cd98e85aSSteve Longerbeam /* can we use double-buffering for this conversion operation? */ 157cd98e85aSSteve Longerbeam bool double_buffering; 158cd98e85aSSteve Longerbeam /* num_rows * num_cols */ 159cd98e85aSSteve Longerbeam unsigned int num_tiles; 160cd98e85aSSteve Longerbeam /* next tile to process */ 161cd98e85aSSteve Longerbeam unsigned int next_tile; 162cd98e85aSSteve Longerbeam /* where to place converted tile in dest image */ 163cd98e85aSSteve Longerbeam unsigned int out_tile_map[MAX_TILES]; 164cd98e85aSSteve Longerbeam 165cd98e85aSSteve Longerbeam struct list_head list; 166cd98e85aSSteve Longerbeam }; 167cd98e85aSSteve Longerbeam 168cd98e85aSSteve Longerbeam struct ipu_image_convert_chan { 169cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv; 170cd98e85aSSteve Longerbeam 171cd98e85aSSteve Longerbeam enum ipu_ic_task ic_task; 172cd98e85aSSteve Longerbeam const struct ipu_image_convert_dma_chan *dma_ch; 173cd98e85aSSteve Longerbeam 174cd98e85aSSteve Longerbeam struct ipu_ic *ic; 175cd98e85aSSteve Longerbeam struct ipuv3_channel *in_chan; 176cd98e85aSSteve Longerbeam struct ipuv3_channel *out_chan; 177cd98e85aSSteve Longerbeam struct ipuv3_channel *rotation_in_chan; 178cd98e85aSSteve Longerbeam struct ipuv3_channel *rotation_out_chan; 179cd98e85aSSteve Longerbeam 180cd98e85aSSteve Longerbeam /* the IPU end-of-frame irqs */ 181cd98e85aSSteve Longerbeam int out_eof_irq; 182cd98e85aSSteve Longerbeam int rot_out_eof_irq; 183cd98e85aSSteve Longerbeam 184cd98e85aSSteve Longerbeam spinlock_t irqlock; 185cd98e85aSSteve Longerbeam 186cd98e85aSSteve Longerbeam /* list of convert contexts */ 187cd98e85aSSteve Longerbeam struct list_head ctx_list; 188cd98e85aSSteve Longerbeam /* queue of conversion runs */ 189cd98e85aSSteve Longerbeam struct list_head pending_q; 190cd98e85aSSteve Longerbeam /* queue of completed runs */ 191cd98e85aSSteve Longerbeam struct list_head done_q; 192cd98e85aSSteve Longerbeam 193cd98e85aSSteve Longerbeam /* the current conversion run */ 194cd98e85aSSteve Longerbeam struct ipu_image_convert_run *current_run; 195cd98e85aSSteve Longerbeam }; 196cd98e85aSSteve Longerbeam 197cd98e85aSSteve Longerbeam struct ipu_image_convert_priv { 198cd98e85aSSteve Longerbeam struct ipu_image_convert_chan chan[IC_NUM_TASKS]; 199cd98e85aSSteve Longerbeam struct ipu_soc *ipu; 200cd98e85aSSteve Longerbeam }; 201cd98e85aSSteve Longerbeam 202cd98e85aSSteve Longerbeam static const struct ipu_image_convert_dma_chan 203cd98e85aSSteve Longerbeam image_convert_dma_chan[IC_NUM_TASKS] = { 204cd98e85aSSteve Longerbeam [IC_TASK_VIEWFINDER] = { 205cd98e85aSSteve Longerbeam .in = IPUV3_CHANNEL_MEM_IC_PRP_VF, 206cd98e85aSSteve Longerbeam .out = IPUV3_CHANNEL_IC_PRP_VF_MEM, 207cd98e85aSSteve Longerbeam .rot_in = IPUV3_CHANNEL_MEM_ROT_VF, 208cd98e85aSSteve Longerbeam .rot_out = IPUV3_CHANNEL_ROT_VF_MEM, 209cd98e85aSSteve Longerbeam .vdi_in_p = IPUV3_CHANNEL_MEM_VDI_PREV, 210cd98e85aSSteve Longerbeam .vdi_in = IPUV3_CHANNEL_MEM_VDI_CUR, 211cd98e85aSSteve Longerbeam .vdi_in_n = IPUV3_CHANNEL_MEM_VDI_NEXT, 212cd98e85aSSteve Longerbeam }, 213cd98e85aSSteve Longerbeam [IC_TASK_POST_PROCESSOR] = { 214cd98e85aSSteve Longerbeam .in = IPUV3_CHANNEL_MEM_IC_PP, 215cd98e85aSSteve Longerbeam .out = IPUV3_CHANNEL_IC_PP_MEM, 216cd98e85aSSteve Longerbeam .rot_in = IPUV3_CHANNEL_MEM_ROT_PP, 217cd98e85aSSteve Longerbeam .rot_out = IPUV3_CHANNEL_ROT_PP_MEM, 218cd98e85aSSteve Longerbeam }, 219cd98e85aSSteve Longerbeam }; 220cd98e85aSSteve Longerbeam 221cd98e85aSSteve Longerbeam static const struct ipu_image_pixfmt image_convert_formats[] = { 222cd98e85aSSteve Longerbeam { 223cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_RGB565, 224cd98e85aSSteve Longerbeam .bpp = 16, 225cd98e85aSSteve Longerbeam }, { 226cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_RGB24, 227cd98e85aSSteve Longerbeam .bpp = 24, 228cd98e85aSSteve Longerbeam }, { 229cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_BGR24, 230cd98e85aSSteve Longerbeam .bpp = 24, 231cd98e85aSSteve Longerbeam }, { 232cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_RGB32, 233cd98e85aSSteve Longerbeam .bpp = 32, 234cd98e85aSSteve Longerbeam }, { 235cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_BGR32, 236cd98e85aSSteve Longerbeam .bpp = 32, 237cd98e85aSSteve Longerbeam }, { 2385c41bb60SPhilipp Zabel .fourcc = V4L2_PIX_FMT_XRGB32, 2395c41bb60SPhilipp Zabel .bpp = 32, 2405c41bb60SPhilipp Zabel }, { 2415c41bb60SPhilipp Zabel .fourcc = V4L2_PIX_FMT_XBGR32, 2425c41bb60SPhilipp Zabel .bpp = 32, 2435c41bb60SPhilipp Zabel }, { 244cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YUYV, 245cd98e85aSSteve Longerbeam .bpp = 16, 246cd98e85aSSteve Longerbeam .uv_width_dec = 2, 247cd98e85aSSteve Longerbeam .uv_height_dec = 1, 248cd98e85aSSteve Longerbeam }, { 249cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_UYVY, 250cd98e85aSSteve Longerbeam .bpp = 16, 251cd98e85aSSteve Longerbeam .uv_width_dec = 2, 252cd98e85aSSteve Longerbeam .uv_height_dec = 1, 253cd98e85aSSteve Longerbeam }, { 254cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YUV420, 255cd98e85aSSteve Longerbeam .bpp = 12, 256cd98e85aSSteve Longerbeam .planar = true, 257cd98e85aSSteve Longerbeam .uv_width_dec = 2, 258cd98e85aSSteve Longerbeam .uv_height_dec = 2, 259cd98e85aSSteve Longerbeam }, { 260cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YVU420, 261cd98e85aSSteve Longerbeam .bpp = 12, 262cd98e85aSSteve Longerbeam .planar = true, 263cd98e85aSSteve Longerbeam .uv_width_dec = 2, 264cd98e85aSSteve Longerbeam .uv_height_dec = 2, 265cd98e85aSSteve Longerbeam .uv_swapped = true, 266cd98e85aSSteve Longerbeam }, { 267cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_NV12, 268cd98e85aSSteve Longerbeam .bpp = 12, 269cd98e85aSSteve Longerbeam .planar = true, 270cd98e85aSSteve Longerbeam .uv_width_dec = 2, 271cd98e85aSSteve Longerbeam .uv_height_dec = 2, 272cd98e85aSSteve Longerbeam .uv_packed = true, 273cd98e85aSSteve Longerbeam }, { 274cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YUV422P, 275cd98e85aSSteve Longerbeam .bpp = 16, 276cd98e85aSSteve Longerbeam .planar = true, 277cd98e85aSSteve Longerbeam .uv_width_dec = 2, 278cd98e85aSSteve Longerbeam .uv_height_dec = 1, 279cd98e85aSSteve Longerbeam }, { 280cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_NV16, 281cd98e85aSSteve Longerbeam .bpp = 16, 282cd98e85aSSteve Longerbeam .planar = true, 283cd98e85aSSteve Longerbeam .uv_width_dec = 2, 284cd98e85aSSteve Longerbeam .uv_height_dec = 1, 285cd98e85aSSteve Longerbeam .uv_packed = true, 286cd98e85aSSteve Longerbeam }, 287cd98e85aSSteve Longerbeam }; 288cd98e85aSSteve Longerbeam 289cd98e85aSSteve Longerbeam static const struct ipu_image_pixfmt *get_format(u32 fourcc) 290cd98e85aSSteve Longerbeam { 291cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *ret = NULL; 292cd98e85aSSteve Longerbeam unsigned int i; 293cd98e85aSSteve Longerbeam 294cd98e85aSSteve Longerbeam for (i = 0; i < ARRAY_SIZE(image_convert_formats); i++) { 295cd98e85aSSteve Longerbeam if (image_convert_formats[i].fourcc == fourcc) { 296cd98e85aSSteve Longerbeam ret = &image_convert_formats[i]; 297cd98e85aSSteve Longerbeam break; 298cd98e85aSSteve Longerbeam } 299cd98e85aSSteve Longerbeam } 300cd98e85aSSteve Longerbeam 301cd98e85aSSteve Longerbeam return ret; 302cd98e85aSSteve Longerbeam } 303cd98e85aSSteve Longerbeam 304cd98e85aSSteve Longerbeam static void dump_format(struct ipu_image_convert_ctx *ctx, 305cd98e85aSSteve Longerbeam struct ipu_image_convert_image *ic_image) 306cd98e85aSSteve Longerbeam { 307cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 308cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 309cd98e85aSSteve Longerbeam 310cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 311cd98e85aSSteve Longerbeam "task %u: ctx %p: %s format: %dx%d (%dx%d tiles of size %dx%d), %c%c%c%c\n", 312cd98e85aSSteve Longerbeam chan->ic_task, ctx, 313cd98e85aSSteve Longerbeam ic_image->type == IMAGE_CONVERT_OUT ? "Output" : "Input", 314cd98e85aSSteve Longerbeam ic_image->base.pix.width, ic_image->base.pix.height, 315cd98e85aSSteve Longerbeam ic_image->num_cols, ic_image->num_rows, 316cd98e85aSSteve Longerbeam ic_image->tile[0].width, ic_image->tile[0].height, 317cd98e85aSSteve Longerbeam ic_image->fmt->fourcc & 0xff, 318cd98e85aSSteve Longerbeam (ic_image->fmt->fourcc >> 8) & 0xff, 319cd98e85aSSteve Longerbeam (ic_image->fmt->fourcc >> 16) & 0xff, 320cd98e85aSSteve Longerbeam (ic_image->fmt->fourcc >> 24) & 0xff); 321cd98e85aSSteve Longerbeam } 322cd98e85aSSteve Longerbeam 323cd98e85aSSteve Longerbeam int ipu_image_convert_enum_format(int index, u32 *fourcc) 324cd98e85aSSteve Longerbeam { 325cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt; 326cd98e85aSSteve Longerbeam 327cd98e85aSSteve Longerbeam if (index >= (int)ARRAY_SIZE(image_convert_formats)) 328cd98e85aSSteve Longerbeam return -EINVAL; 329cd98e85aSSteve Longerbeam 330cd98e85aSSteve Longerbeam /* Format found */ 331cd98e85aSSteve Longerbeam fmt = &image_convert_formats[index]; 332cd98e85aSSteve Longerbeam *fourcc = fmt->fourcc; 333cd98e85aSSteve Longerbeam return 0; 334cd98e85aSSteve Longerbeam } 335cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_enum_format); 336cd98e85aSSteve Longerbeam 337cd98e85aSSteve Longerbeam static void free_dma_buf(struct ipu_image_convert_priv *priv, 338cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf *buf) 339cd98e85aSSteve Longerbeam { 340cd98e85aSSteve Longerbeam if (buf->virt) 341cd98e85aSSteve Longerbeam dma_free_coherent(priv->ipu->dev, 342cd98e85aSSteve Longerbeam buf->len, buf->virt, buf->phys); 343cd98e85aSSteve Longerbeam buf->virt = NULL; 344cd98e85aSSteve Longerbeam buf->phys = 0; 345cd98e85aSSteve Longerbeam } 346cd98e85aSSteve Longerbeam 347cd98e85aSSteve Longerbeam static int alloc_dma_buf(struct ipu_image_convert_priv *priv, 348cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf *buf, 349cd98e85aSSteve Longerbeam int size) 350cd98e85aSSteve Longerbeam { 351cd98e85aSSteve Longerbeam buf->len = PAGE_ALIGN(size); 352cd98e85aSSteve Longerbeam buf->virt = dma_alloc_coherent(priv->ipu->dev, buf->len, &buf->phys, 353cd98e85aSSteve Longerbeam GFP_DMA | GFP_KERNEL); 354cd98e85aSSteve Longerbeam if (!buf->virt) { 355cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "failed to alloc dma buffer\n"); 356cd98e85aSSteve Longerbeam return -ENOMEM; 357cd98e85aSSteve Longerbeam } 358cd98e85aSSteve Longerbeam 359cd98e85aSSteve Longerbeam return 0; 360cd98e85aSSteve Longerbeam } 361cd98e85aSSteve Longerbeam 362cd98e85aSSteve Longerbeam static inline int num_stripes(int dim) 363cd98e85aSSteve Longerbeam { 364cd98e85aSSteve Longerbeam if (dim <= 1024) 365cd98e85aSSteve Longerbeam return 1; 366cd98e85aSSteve Longerbeam else if (dim <= 2048) 367cd98e85aSSteve Longerbeam return 2; 368cd98e85aSSteve Longerbeam else 369cd98e85aSSteve Longerbeam return 4; 370cd98e85aSSteve Longerbeam } 371cd98e85aSSteve Longerbeam 37270b9b6b3SPhilipp Zabel /* 37370b9b6b3SPhilipp Zabel * Calculate downsizing coefficients, which are the same for all tiles, 37470b9b6b3SPhilipp Zabel * and bilinear resizing coefficients, which are used to find the best 37570b9b6b3SPhilipp Zabel * seam positions. 37670b9b6b3SPhilipp Zabel */ 37770b9b6b3SPhilipp Zabel static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx, 37870b9b6b3SPhilipp Zabel struct ipu_image *in, 37970b9b6b3SPhilipp Zabel struct ipu_image *out) 38070b9b6b3SPhilipp Zabel { 38170b9b6b3SPhilipp Zabel u32 downsized_width = in->rect.width; 38270b9b6b3SPhilipp Zabel u32 downsized_height = in->rect.height; 38370b9b6b3SPhilipp Zabel u32 downsize_coeff_v = 0; 38470b9b6b3SPhilipp Zabel u32 downsize_coeff_h = 0; 38570b9b6b3SPhilipp Zabel u32 resized_width = out->rect.width; 38670b9b6b3SPhilipp Zabel u32 resized_height = out->rect.height; 38770b9b6b3SPhilipp Zabel u32 resize_coeff_h; 38870b9b6b3SPhilipp Zabel u32 resize_coeff_v; 38970b9b6b3SPhilipp Zabel 39070b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 39170b9b6b3SPhilipp Zabel resized_width = out->rect.height; 39270b9b6b3SPhilipp Zabel resized_height = out->rect.width; 39370b9b6b3SPhilipp Zabel } 39470b9b6b3SPhilipp Zabel 39570b9b6b3SPhilipp Zabel /* Do not let invalid input lead to an endless loop below */ 39670b9b6b3SPhilipp Zabel if (WARN_ON(resized_width == 0 || resized_height == 0)) 39770b9b6b3SPhilipp Zabel return -EINVAL; 39870b9b6b3SPhilipp Zabel 39970b9b6b3SPhilipp Zabel while (downsized_width >= resized_width * 2) { 40070b9b6b3SPhilipp Zabel downsized_width >>= 1; 40170b9b6b3SPhilipp Zabel downsize_coeff_h++; 40270b9b6b3SPhilipp Zabel } 40370b9b6b3SPhilipp Zabel 40470b9b6b3SPhilipp Zabel while (downsized_height >= resized_height * 2) { 40570b9b6b3SPhilipp Zabel downsized_height >>= 1; 40670b9b6b3SPhilipp Zabel downsize_coeff_v++; 40770b9b6b3SPhilipp Zabel } 40870b9b6b3SPhilipp Zabel 40970b9b6b3SPhilipp Zabel /* 41070b9b6b3SPhilipp Zabel * Calculate the bilinear resizing coefficients that could be used if 41170b9b6b3SPhilipp Zabel * we were converting with a single tile. The bottom right output pixel 41270b9b6b3SPhilipp Zabel * should sample as close as possible to the bottom right input pixel 41370b9b6b3SPhilipp Zabel * out of the decimator, but not overshoot it: 41470b9b6b3SPhilipp Zabel */ 41570b9b6b3SPhilipp Zabel resize_coeff_h = 8192 * (downsized_width - 1) / (resized_width - 1); 41670b9b6b3SPhilipp Zabel resize_coeff_v = 8192 * (downsized_height - 1) / (resized_height - 1); 41770b9b6b3SPhilipp Zabel 41870b9b6b3SPhilipp Zabel dev_dbg(ctx->chan->priv->ipu->dev, 41970b9b6b3SPhilipp Zabel "%s: hscale: >>%u, *8192/%u vscale: >>%u, *8192/%u, %ux%u tiles\n", 42070b9b6b3SPhilipp Zabel __func__, downsize_coeff_h, resize_coeff_h, downsize_coeff_v, 42170b9b6b3SPhilipp Zabel resize_coeff_v, ctx->in.num_cols, ctx->in.num_rows); 42270b9b6b3SPhilipp Zabel 42370b9b6b3SPhilipp Zabel if (downsize_coeff_h > 2 || downsize_coeff_v > 2 || 42470b9b6b3SPhilipp Zabel resize_coeff_h > 0x3fff || resize_coeff_v > 0x3fff) 42570b9b6b3SPhilipp Zabel return -EINVAL; 42670b9b6b3SPhilipp Zabel 42770b9b6b3SPhilipp Zabel ctx->downsize_coeff_h = downsize_coeff_h; 42870b9b6b3SPhilipp Zabel ctx->downsize_coeff_v = downsize_coeff_v; 42970b9b6b3SPhilipp Zabel ctx->image_resize_coeff_h = resize_coeff_h; 43070b9b6b3SPhilipp Zabel ctx->image_resize_coeff_v = resize_coeff_v; 43170b9b6b3SPhilipp Zabel 43270b9b6b3SPhilipp Zabel return 0; 43370b9b6b3SPhilipp Zabel } 43470b9b6b3SPhilipp Zabel 435cd98e85aSSteve Longerbeam static void calc_tile_dimensions(struct ipu_image_convert_ctx *ctx, 436cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 437cd98e85aSSteve Longerbeam { 438571dd82cSPhilipp Zabel unsigned int i; 439cd98e85aSSteve Longerbeam 440cd98e85aSSteve Longerbeam for (i = 0; i < ctx->num_tiles; i++) { 441cd98e85aSSteve Longerbeam struct ipu_image_tile *tile = &image->tile[i]; 442571dd82cSPhilipp Zabel const unsigned int row = i / image->num_cols; 443571dd82cSPhilipp Zabel const unsigned int col = i % image->num_cols; 444cd98e85aSSteve Longerbeam 445cd98e85aSSteve Longerbeam tile->height = image->base.pix.height / image->num_rows; 446cd98e85aSSteve Longerbeam tile->width = image->base.pix.width / image->num_cols; 447571dd82cSPhilipp Zabel tile->left = col * tile->width; 448571dd82cSPhilipp Zabel tile->top = row * tile->height; 449cd98e85aSSteve Longerbeam tile->size = ((tile->height * image->fmt->bpp) >> 3) * 450cd98e85aSSteve Longerbeam tile->width; 451cd98e85aSSteve Longerbeam 452cd98e85aSSteve Longerbeam if (image->fmt->planar) { 453cd98e85aSSteve Longerbeam tile->stride = tile->width; 454cd98e85aSSteve Longerbeam tile->rot_stride = tile->height; 455cd98e85aSSteve Longerbeam } else { 456cd98e85aSSteve Longerbeam tile->stride = 457cd98e85aSSteve Longerbeam (image->fmt->bpp * tile->width) >> 3; 458cd98e85aSSteve Longerbeam tile->rot_stride = 459cd98e85aSSteve Longerbeam (image->fmt->bpp * tile->height) >> 3; 460cd98e85aSSteve Longerbeam } 461cd98e85aSSteve Longerbeam } 462cd98e85aSSteve Longerbeam } 463cd98e85aSSteve Longerbeam 464cd98e85aSSteve Longerbeam /* 465cd98e85aSSteve Longerbeam * Use the rotation transformation to find the tile coordinates 466cd98e85aSSteve Longerbeam * (row, col) of a tile in the destination frame that corresponds 467cd98e85aSSteve Longerbeam * to the given tile coordinates of a source frame. The destination 468cd98e85aSSteve Longerbeam * coordinate is then converted to a tile index. 469cd98e85aSSteve Longerbeam */ 470cd98e85aSSteve Longerbeam static int transform_tile_index(struct ipu_image_convert_ctx *ctx, 471cd98e85aSSteve Longerbeam int src_row, int src_col) 472cd98e85aSSteve Longerbeam { 473cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 474cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 475cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 476cd98e85aSSteve Longerbeam struct ipu_image_convert_image *d_image = &ctx->out; 477cd98e85aSSteve Longerbeam int dst_row, dst_col; 478cd98e85aSSteve Longerbeam 479cd98e85aSSteve Longerbeam /* with no rotation it's a 1:1 mapping */ 480cd98e85aSSteve Longerbeam if (ctx->rot_mode == IPU_ROTATE_NONE) 481cd98e85aSSteve Longerbeam return src_row * s_image->num_cols + src_col; 482cd98e85aSSteve Longerbeam 483cd98e85aSSteve Longerbeam /* 484cd98e85aSSteve Longerbeam * before doing the transform, first we have to translate 485cd98e85aSSteve Longerbeam * source row,col for an origin in the center of s_image 486cd98e85aSSteve Longerbeam */ 487cd98e85aSSteve Longerbeam src_row = src_row * 2 - (s_image->num_rows - 1); 488cd98e85aSSteve Longerbeam src_col = src_col * 2 - (s_image->num_cols - 1); 489cd98e85aSSteve Longerbeam 490cd98e85aSSteve Longerbeam /* do the rotation transform */ 491cd98e85aSSteve Longerbeam if (ctx->rot_mode & IPU_ROT_BIT_90) { 492cd98e85aSSteve Longerbeam dst_col = -src_row; 493cd98e85aSSteve Longerbeam dst_row = src_col; 494cd98e85aSSteve Longerbeam } else { 495cd98e85aSSteve Longerbeam dst_col = src_col; 496cd98e85aSSteve Longerbeam dst_row = src_row; 497cd98e85aSSteve Longerbeam } 498cd98e85aSSteve Longerbeam 499cd98e85aSSteve Longerbeam /* apply flip */ 500cd98e85aSSteve Longerbeam if (ctx->rot_mode & IPU_ROT_BIT_HFLIP) 501cd98e85aSSteve Longerbeam dst_col = -dst_col; 502cd98e85aSSteve Longerbeam if (ctx->rot_mode & IPU_ROT_BIT_VFLIP) 503cd98e85aSSteve Longerbeam dst_row = -dst_row; 504cd98e85aSSteve Longerbeam 505cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "task %u: ctx %p: [%d,%d] --> [%d,%d]\n", 506cd98e85aSSteve Longerbeam chan->ic_task, ctx, src_col, src_row, dst_col, dst_row); 507cd98e85aSSteve Longerbeam 508cd98e85aSSteve Longerbeam /* 509cd98e85aSSteve Longerbeam * finally translate dest row,col using an origin in upper 510cd98e85aSSteve Longerbeam * left of d_image 511cd98e85aSSteve Longerbeam */ 512cd98e85aSSteve Longerbeam dst_row += d_image->num_rows - 1; 513cd98e85aSSteve Longerbeam dst_col += d_image->num_cols - 1; 514cd98e85aSSteve Longerbeam dst_row /= 2; 515cd98e85aSSteve Longerbeam dst_col /= 2; 516cd98e85aSSteve Longerbeam 517cd98e85aSSteve Longerbeam return dst_row * d_image->num_cols + dst_col; 518cd98e85aSSteve Longerbeam } 519cd98e85aSSteve Longerbeam 520cd98e85aSSteve Longerbeam /* 521cd98e85aSSteve Longerbeam * Fill the out_tile_map[] with transformed destination tile indeces. 522cd98e85aSSteve Longerbeam */ 523cd98e85aSSteve Longerbeam static void calc_out_tile_map(struct ipu_image_convert_ctx *ctx) 524cd98e85aSSteve Longerbeam { 525cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 526cd98e85aSSteve Longerbeam unsigned int row, col, tile = 0; 527cd98e85aSSteve Longerbeam 528cd98e85aSSteve Longerbeam for (row = 0; row < s_image->num_rows; row++) { 529cd98e85aSSteve Longerbeam for (col = 0; col < s_image->num_cols; col++) { 530cd98e85aSSteve Longerbeam ctx->out_tile_map[tile] = 531cd98e85aSSteve Longerbeam transform_tile_index(ctx, row, col); 532cd98e85aSSteve Longerbeam tile++; 533cd98e85aSSteve Longerbeam } 534cd98e85aSSteve Longerbeam } 535cd98e85aSSteve Longerbeam } 536cd98e85aSSteve Longerbeam 537c4e45658SSteve Longerbeam static int calc_tile_offsets_planar(struct ipu_image_convert_ctx *ctx, 538cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 539cd98e85aSSteve Longerbeam { 540cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 541cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 542cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt = image->fmt; 543cd98e85aSSteve Longerbeam unsigned int row, col, tile = 0; 544571dd82cSPhilipp Zabel u32 H, top, y_stride, uv_stride; 545cd98e85aSSteve Longerbeam u32 uv_row_off, uv_col_off, uv_off, u_off, v_off, tmp; 546cd98e85aSSteve Longerbeam u32 y_row_off, y_col_off, y_off; 547cd98e85aSSteve Longerbeam u32 y_size, uv_size; 548cd98e85aSSteve Longerbeam 549cd98e85aSSteve Longerbeam /* setup some convenience vars */ 550cd98e85aSSteve Longerbeam H = image->base.pix.height; 551cd98e85aSSteve Longerbeam 552cd98e85aSSteve Longerbeam y_stride = image->stride; 553cd98e85aSSteve Longerbeam uv_stride = y_stride / fmt->uv_width_dec; 554cd98e85aSSteve Longerbeam if (fmt->uv_packed) 555cd98e85aSSteve Longerbeam uv_stride *= 2; 556cd98e85aSSteve Longerbeam 557cd98e85aSSteve Longerbeam y_size = H * y_stride; 558cd98e85aSSteve Longerbeam uv_size = y_size / (fmt->uv_width_dec * fmt->uv_height_dec); 559cd98e85aSSteve Longerbeam 560cd98e85aSSteve Longerbeam for (row = 0; row < image->num_rows; row++) { 561571dd82cSPhilipp Zabel top = image->tile[tile].top; 562571dd82cSPhilipp Zabel y_row_off = top * y_stride; 563571dd82cSPhilipp Zabel uv_row_off = (top * uv_stride) / fmt->uv_height_dec; 564cd98e85aSSteve Longerbeam 565cd98e85aSSteve Longerbeam for (col = 0; col < image->num_cols; col++) { 566571dd82cSPhilipp Zabel y_col_off = image->tile[tile].left; 567cd98e85aSSteve Longerbeam uv_col_off = y_col_off / fmt->uv_width_dec; 568cd98e85aSSteve Longerbeam if (fmt->uv_packed) 569cd98e85aSSteve Longerbeam uv_col_off *= 2; 570cd98e85aSSteve Longerbeam 571cd98e85aSSteve Longerbeam y_off = y_row_off + y_col_off; 572cd98e85aSSteve Longerbeam uv_off = uv_row_off + uv_col_off; 573cd98e85aSSteve Longerbeam 574cd98e85aSSteve Longerbeam u_off = y_size - y_off + uv_off; 575cd98e85aSSteve Longerbeam v_off = (fmt->uv_packed) ? 0 : u_off + uv_size; 576cd98e85aSSteve Longerbeam if (fmt->uv_swapped) { 577cd98e85aSSteve Longerbeam tmp = u_off; 578cd98e85aSSteve Longerbeam u_off = v_off; 579cd98e85aSSteve Longerbeam v_off = tmp; 580cd98e85aSSteve Longerbeam } 581cd98e85aSSteve Longerbeam 582cd98e85aSSteve Longerbeam image->tile[tile].offset = y_off; 583cd98e85aSSteve Longerbeam image->tile[tile].u_off = u_off; 584cd98e85aSSteve Longerbeam image->tile[tile++].v_off = v_off; 585cd98e85aSSteve Longerbeam 586c4e45658SSteve Longerbeam if ((y_off & 0x7) || (u_off & 0x7) || (v_off & 0x7)) { 587c4e45658SSteve Longerbeam dev_err(priv->ipu->dev, 588c4e45658SSteve Longerbeam "task %u: ctx %p: %s@[%d,%d]: " 589c4e45658SSteve Longerbeam "y_off %08x, u_off %08x, v_off %08x\n", 590cd98e85aSSteve Longerbeam chan->ic_task, ctx, 591cd98e85aSSteve Longerbeam image->type == IMAGE_CONVERT_IN ? 592cd98e85aSSteve Longerbeam "Input" : "Output", row, col, 593cd98e85aSSteve Longerbeam y_off, u_off, v_off); 594c4e45658SSteve Longerbeam return -EINVAL; 595cd98e85aSSteve Longerbeam } 596cd98e85aSSteve Longerbeam } 597cd98e85aSSteve Longerbeam } 598cd98e85aSSteve Longerbeam 599c4e45658SSteve Longerbeam return 0; 600c4e45658SSteve Longerbeam } 601c4e45658SSteve Longerbeam 602c4e45658SSteve Longerbeam static int calc_tile_offsets_packed(struct ipu_image_convert_ctx *ctx, 603cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 604cd98e85aSSteve Longerbeam { 605cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 606cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 607cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt = image->fmt; 608cd98e85aSSteve Longerbeam unsigned int row, col, tile = 0; 609571dd82cSPhilipp Zabel u32 bpp, stride, offset; 610cd98e85aSSteve Longerbeam u32 row_off, col_off; 611cd98e85aSSteve Longerbeam 612cd98e85aSSteve Longerbeam /* setup some convenience vars */ 613cd98e85aSSteve Longerbeam stride = image->stride; 614cd98e85aSSteve Longerbeam bpp = fmt->bpp; 615cd98e85aSSteve Longerbeam 616cd98e85aSSteve Longerbeam for (row = 0; row < image->num_rows; row++) { 617571dd82cSPhilipp Zabel row_off = image->tile[tile].top * stride; 618cd98e85aSSteve Longerbeam 619cd98e85aSSteve Longerbeam for (col = 0; col < image->num_cols; col++) { 620571dd82cSPhilipp Zabel col_off = (image->tile[tile].left * bpp) >> 3; 621cd98e85aSSteve Longerbeam 622c4e45658SSteve Longerbeam offset = row_off + col_off; 623c4e45658SSteve Longerbeam 624c4e45658SSteve Longerbeam image->tile[tile].offset = offset; 625cd98e85aSSteve Longerbeam image->tile[tile].u_off = 0; 626cd98e85aSSteve Longerbeam image->tile[tile++].v_off = 0; 627cd98e85aSSteve Longerbeam 628c4e45658SSteve Longerbeam if (offset & 0x7) { 629c4e45658SSteve Longerbeam dev_err(priv->ipu->dev, 630c4e45658SSteve Longerbeam "task %u: ctx %p: %s@[%d,%d]: " 631c4e45658SSteve Longerbeam "phys %08x\n", 632cd98e85aSSteve Longerbeam chan->ic_task, ctx, 633cd98e85aSSteve Longerbeam image->type == IMAGE_CONVERT_IN ? 634cd98e85aSSteve Longerbeam "Input" : "Output", row, col, 635cd98e85aSSteve Longerbeam row_off + col_off); 636c4e45658SSteve Longerbeam return -EINVAL; 637cd98e85aSSteve Longerbeam } 638cd98e85aSSteve Longerbeam } 639cd98e85aSSteve Longerbeam } 640cd98e85aSSteve Longerbeam 641c4e45658SSteve Longerbeam return 0; 642c4e45658SSteve Longerbeam } 643c4e45658SSteve Longerbeam 644c4e45658SSteve Longerbeam static int calc_tile_offsets(struct ipu_image_convert_ctx *ctx, 645cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 646cd98e85aSSteve Longerbeam { 647cd98e85aSSteve Longerbeam if (image->fmt->planar) 648c4e45658SSteve Longerbeam return calc_tile_offsets_planar(ctx, image); 649c4e45658SSteve Longerbeam 650c4e45658SSteve Longerbeam return calc_tile_offsets_packed(ctx, image); 651cd98e85aSSteve Longerbeam } 652cd98e85aSSteve Longerbeam 653cd98e85aSSteve Longerbeam /* 65470b9b6b3SPhilipp Zabel * Calculate the resizing ratio for the IC main processing section given input 65570b9b6b3SPhilipp Zabel * size, fixed downsizing coefficient, and output size. 65670b9b6b3SPhilipp Zabel * Either round to closest for the next tile's first pixel to minimize seams 65770b9b6b3SPhilipp Zabel * and distortion (for all but right column / bottom row), or round down to 65870b9b6b3SPhilipp Zabel * avoid sampling beyond the edges of the input image for this tile's last 65970b9b6b3SPhilipp Zabel * pixel. 66070b9b6b3SPhilipp Zabel * Returns the resizing coefficient, resizing ratio is 8192.0 / resize_coeff. 66170b9b6b3SPhilipp Zabel */ 66270b9b6b3SPhilipp Zabel static u32 calc_resize_coeff(u32 input_size, u32 downsize_coeff, 66370b9b6b3SPhilipp Zabel u32 output_size, bool allow_overshoot) 66470b9b6b3SPhilipp Zabel { 66570b9b6b3SPhilipp Zabel u32 downsized = input_size >> downsize_coeff; 66670b9b6b3SPhilipp Zabel 66770b9b6b3SPhilipp Zabel if (allow_overshoot) 66870b9b6b3SPhilipp Zabel return DIV_ROUND_CLOSEST(8192 * downsized, output_size); 66970b9b6b3SPhilipp Zabel else 67070b9b6b3SPhilipp Zabel return 8192 * (downsized - 1) / (output_size - 1); 67170b9b6b3SPhilipp Zabel } 67270b9b6b3SPhilipp Zabel 67370b9b6b3SPhilipp Zabel /* 67470b9b6b3SPhilipp Zabel * Slightly modify resize coefficients per tile to hide the bilinear 67570b9b6b3SPhilipp Zabel * interpolator reset at tile borders, shifting the right / bottom edge 67670b9b6b3SPhilipp Zabel * by up to a half input pixel. This removes noticeable seams between 67770b9b6b3SPhilipp Zabel * tiles at higher upscaling factors. 67870b9b6b3SPhilipp Zabel */ 67970b9b6b3SPhilipp Zabel static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx) 68070b9b6b3SPhilipp Zabel { 68170b9b6b3SPhilipp Zabel struct ipu_image_convert_chan *chan = ctx->chan; 68270b9b6b3SPhilipp Zabel struct ipu_image_convert_priv *priv = chan->priv; 68370b9b6b3SPhilipp Zabel struct ipu_image_tile *in_tile, *out_tile; 68470b9b6b3SPhilipp Zabel unsigned int col, row, tile_idx; 68570b9b6b3SPhilipp Zabel unsigned int last_output; 68670b9b6b3SPhilipp Zabel 68770b9b6b3SPhilipp Zabel for (col = 0; col < ctx->in.num_cols; col++) { 68870b9b6b3SPhilipp Zabel bool closest = (col < ctx->in.num_cols - 1) && 68970b9b6b3SPhilipp Zabel !(ctx->rot_mode & IPU_ROT_BIT_HFLIP); 69070b9b6b3SPhilipp Zabel u32 resized_width; 69170b9b6b3SPhilipp Zabel u32 resize_coeff_h; 69270b9b6b3SPhilipp Zabel 69370b9b6b3SPhilipp Zabel tile_idx = col; 69470b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 69570b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 69670b9b6b3SPhilipp Zabel 69770b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 69870b9b6b3SPhilipp Zabel resized_width = out_tile->height; 69970b9b6b3SPhilipp Zabel else 70070b9b6b3SPhilipp Zabel resized_width = out_tile->width; 70170b9b6b3SPhilipp Zabel 70270b9b6b3SPhilipp Zabel resize_coeff_h = calc_resize_coeff(in_tile->width, 70370b9b6b3SPhilipp Zabel ctx->downsize_coeff_h, 70470b9b6b3SPhilipp Zabel resized_width, closest); 70570b9b6b3SPhilipp Zabel 70670b9b6b3SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: column %u hscale: *8192/%u\n", 70770b9b6b3SPhilipp Zabel __func__, col, resize_coeff_h); 70870b9b6b3SPhilipp Zabel 70970b9b6b3SPhilipp Zabel 71070b9b6b3SPhilipp Zabel for (row = 0; row < ctx->in.num_rows; row++) { 71170b9b6b3SPhilipp Zabel tile_idx = row * ctx->in.num_cols + col; 71270b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 71370b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 71470b9b6b3SPhilipp Zabel 71570b9b6b3SPhilipp Zabel /* 71670b9b6b3SPhilipp Zabel * With the horizontal scaling factor known, round up 71770b9b6b3SPhilipp Zabel * resized width (output width or height) to burst size. 71870b9b6b3SPhilipp Zabel */ 71970b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 72070b9b6b3SPhilipp Zabel out_tile->height = round_up(resized_width, 8); 72170b9b6b3SPhilipp Zabel else 72270b9b6b3SPhilipp Zabel out_tile->width = round_up(resized_width, 8); 72370b9b6b3SPhilipp Zabel 72470b9b6b3SPhilipp Zabel /* 72570b9b6b3SPhilipp Zabel * Calculate input width from the last accessed input 72670b9b6b3SPhilipp Zabel * pixel given resized width and scaling coefficients. 72770b9b6b3SPhilipp Zabel * Round up to burst size. 72870b9b6b3SPhilipp Zabel */ 72970b9b6b3SPhilipp Zabel last_output = round_up(resized_width, 8) - 1; 73070b9b6b3SPhilipp Zabel if (closest) 73170b9b6b3SPhilipp Zabel last_output++; 73270b9b6b3SPhilipp Zabel in_tile->width = round_up( 73370b9b6b3SPhilipp Zabel (DIV_ROUND_UP(last_output * resize_coeff_h, 73470b9b6b3SPhilipp Zabel 8192) + 1) 73570b9b6b3SPhilipp Zabel << ctx->downsize_coeff_h, 8); 73670b9b6b3SPhilipp Zabel } 73770b9b6b3SPhilipp Zabel 73870b9b6b3SPhilipp Zabel ctx->resize_coeffs_h[col] = resize_coeff_h; 73970b9b6b3SPhilipp Zabel } 74070b9b6b3SPhilipp Zabel 74170b9b6b3SPhilipp Zabel for (row = 0; row < ctx->in.num_rows; row++) { 74270b9b6b3SPhilipp Zabel bool closest = (row < ctx->in.num_rows - 1) && 74370b9b6b3SPhilipp Zabel !(ctx->rot_mode & IPU_ROT_BIT_VFLIP); 74470b9b6b3SPhilipp Zabel u32 resized_height; 74570b9b6b3SPhilipp Zabel u32 resize_coeff_v; 74670b9b6b3SPhilipp Zabel 74770b9b6b3SPhilipp Zabel tile_idx = row * ctx->in.num_cols; 74870b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 74970b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 75070b9b6b3SPhilipp Zabel 75170b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 75270b9b6b3SPhilipp Zabel resized_height = out_tile->width; 75370b9b6b3SPhilipp Zabel else 75470b9b6b3SPhilipp Zabel resized_height = out_tile->height; 75570b9b6b3SPhilipp Zabel 75670b9b6b3SPhilipp Zabel resize_coeff_v = calc_resize_coeff(in_tile->height, 75770b9b6b3SPhilipp Zabel ctx->downsize_coeff_v, 75870b9b6b3SPhilipp Zabel resized_height, closest); 75970b9b6b3SPhilipp Zabel 76070b9b6b3SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: row %u vscale: *8192/%u\n", 76170b9b6b3SPhilipp Zabel __func__, row, resize_coeff_v); 76270b9b6b3SPhilipp Zabel 76370b9b6b3SPhilipp Zabel for (col = 0; col < ctx->in.num_cols; col++) { 76470b9b6b3SPhilipp Zabel tile_idx = row * ctx->in.num_cols + col; 76570b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 76670b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 76770b9b6b3SPhilipp Zabel 76870b9b6b3SPhilipp Zabel /* 76970b9b6b3SPhilipp Zabel * With the vertical scaling factor known, round up 77070b9b6b3SPhilipp Zabel * resized height (output width or height) to IDMAC 77170b9b6b3SPhilipp Zabel * limitations. 77270b9b6b3SPhilipp Zabel */ 77370b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 77470b9b6b3SPhilipp Zabel out_tile->width = round_up(resized_height, 2); 77570b9b6b3SPhilipp Zabel else 77670b9b6b3SPhilipp Zabel out_tile->height = round_up(resized_height, 2); 77770b9b6b3SPhilipp Zabel 77870b9b6b3SPhilipp Zabel /* 77970b9b6b3SPhilipp Zabel * Calculate input width from the last accessed input 78070b9b6b3SPhilipp Zabel * pixel given resized height and scaling coefficients. 78170b9b6b3SPhilipp Zabel * Align to IDMAC restrictions. 78270b9b6b3SPhilipp Zabel */ 78370b9b6b3SPhilipp Zabel last_output = round_up(resized_height, 2) - 1; 78470b9b6b3SPhilipp Zabel if (closest) 78570b9b6b3SPhilipp Zabel last_output++; 78670b9b6b3SPhilipp Zabel in_tile->height = round_up( 78770b9b6b3SPhilipp Zabel (DIV_ROUND_UP(last_output * resize_coeff_v, 78870b9b6b3SPhilipp Zabel 8192) + 1) 78970b9b6b3SPhilipp Zabel << ctx->downsize_coeff_v, 2); 79070b9b6b3SPhilipp Zabel } 79170b9b6b3SPhilipp Zabel 79270b9b6b3SPhilipp Zabel ctx->resize_coeffs_v[row] = resize_coeff_v; 79370b9b6b3SPhilipp Zabel } 79470b9b6b3SPhilipp Zabel } 79570b9b6b3SPhilipp Zabel 79670b9b6b3SPhilipp Zabel /* 797cd98e85aSSteve Longerbeam * return the number of runs in given queue (pending_q or done_q) 798cd98e85aSSteve Longerbeam * for this context. hold irqlock when calling. 799cd98e85aSSteve Longerbeam */ 800cd98e85aSSteve Longerbeam static int get_run_count(struct ipu_image_convert_ctx *ctx, 801cd98e85aSSteve Longerbeam struct list_head *q) 802cd98e85aSSteve Longerbeam { 803cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 804cd98e85aSSteve Longerbeam int count = 0; 805cd98e85aSSteve Longerbeam 806cd98e85aSSteve Longerbeam lockdep_assert_held(&ctx->chan->irqlock); 807cd98e85aSSteve Longerbeam 808cd98e85aSSteve Longerbeam list_for_each_entry(run, q, list) { 809cd98e85aSSteve Longerbeam if (run->ctx == ctx) 810cd98e85aSSteve Longerbeam count++; 811cd98e85aSSteve Longerbeam } 812cd98e85aSSteve Longerbeam 813cd98e85aSSteve Longerbeam return count; 814cd98e85aSSteve Longerbeam } 815cd98e85aSSteve Longerbeam 816cd98e85aSSteve Longerbeam static void convert_stop(struct ipu_image_convert_run *run) 817cd98e85aSSteve Longerbeam { 818cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 819cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 820cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 821cd98e85aSSteve Longerbeam 822cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: stopping ctx %p run %p\n", 823cd98e85aSSteve Longerbeam __func__, chan->ic_task, ctx, run); 824cd98e85aSSteve Longerbeam 825cd98e85aSSteve Longerbeam /* disable IC tasks and the channels */ 826cd98e85aSSteve Longerbeam ipu_ic_task_disable(chan->ic); 827cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->in_chan); 828cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->out_chan); 829cd98e85aSSteve Longerbeam 830cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 831cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->rotation_in_chan); 832cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->rotation_out_chan); 833cd98e85aSSteve Longerbeam ipu_idmac_unlink(chan->out_chan, chan->rotation_in_chan); 834cd98e85aSSteve Longerbeam } 835cd98e85aSSteve Longerbeam 836cd98e85aSSteve Longerbeam ipu_ic_disable(chan->ic); 837cd98e85aSSteve Longerbeam } 838cd98e85aSSteve Longerbeam 839cd98e85aSSteve Longerbeam static void init_idmac_channel(struct ipu_image_convert_ctx *ctx, 840cd98e85aSSteve Longerbeam struct ipuv3_channel *channel, 841cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image, 842cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode, 843dd65d2a9SPhilipp Zabel bool rot_swap_width_height, 844dd65d2a9SPhilipp Zabel unsigned int tile) 845cd98e85aSSteve Longerbeam { 846cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 847cd98e85aSSteve Longerbeam unsigned int burst_size; 848cd98e85aSSteve Longerbeam u32 width, height, stride; 849cd98e85aSSteve Longerbeam dma_addr_t addr0, addr1 = 0; 850cd98e85aSSteve Longerbeam struct ipu_image tile_image; 851cd98e85aSSteve Longerbeam unsigned int tile_idx[2]; 852cd98e85aSSteve Longerbeam 853cd98e85aSSteve Longerbeam if (image->type == IMAGE_CONVERT_OUT) { 854dd65d2a9SPhilipp Zabel tile_idx[0] = ctx->out_tile_map[tile]; 855cd98e85aSSteve Longerbeam tile_idx[1] = ctx->out_tile_map[1]; 856cd98e85aSSteve Longerbeam } else { 857dd65d2a9SPhilipp Zabel tile_idx[0] = tile; 858cd98e85aSSteve Longerbeam tile_idx[1] = 1; 859cd98e85aSSteve Longerbeam } 860cd98e85aSSteve Longerbeam 861cd98e85aSSteve Longerbeam if (rot_swap_width_height) { 862dd65d2a9SPhilipp Zabel width = image->tile[tile_idx[0]].height; 863dd65d2a9SPhilipp Zabel height = image->tile[tile_idx[0]].width; 864dd65d2a9SPhilipp Zabel stride = image->tile[tile_idx[0]].rot_stride; 865cd98e85aSSteve Longerbeam addr0 = ctx->rot_intermediate[0].phys; 866cd98e85aSSteve Longerbeam if (ctx->double_buffering) 867cd98e85aSSteve Longerbeam addr1 = ctx->rot_intermediate[1].phys; 868cd98e85aSSteve Longerbeam } else { 869dd65d2a9SPhilipp Zabel width = image->tile[tile_idx[0]].width; 870dd65d2a9SPhilipp Zabel height = image->tile[tile_idx[0]].height; 871cd98e85aSSteve Longerbeam stride = image->stride; 872cd98e85aSSteve Longerbeam addr0 = image->base.phys0 + 873cd98e85aSSteve Longerbeam image->tile[tile_idx[0]].offset; 874cd98e85aSSteve Longerbeam if (ctx->double_buffering) 875cd98e85aSSteve Longerbeam addr1 = image->base.phys0 + 876cd98e85aSSteve Longerbeam image->tile[tile_idx[1]].offset; 877cd98e85aSSteve Longerbeam } 878cd98e85aSSteve Longerbeam 879cd98e85aSSteve Longerbeam ipu_cpmem_zero(channel); 880cd98e85aSSteve Longerbeam 881cd98e85aSSteve Longerbeam memset(&tile_image, 0, sizeof(tile_image)); 882cd98e85aSSteve Longerbeam tile_image.pix.width = tile_image.rect.width = width; 883cd98e85aSSteve Longerbeam tile_image.pix.height = tile_image.rect.height = height; 884cd98e85aSSteve Longerbeam tile_image.pix.bytesperline = stride; 885cd98e85aSSteve Longerbeam tile_image.pix.pixelformat = image->fmt->fourcc; 886cd98e85aSSteve Longerbeam tile_image.phys0 = addr0; 887cd98e85aSSteve Longerbeam tile_image.phys1 = addr1; 888dec408fdSSteve Longerbeam if (image->fmt->planar && !rot_swap_width_height) { 889dec408fdSSteve Longerbeam tile_image.u_offset = image->tile[tile_idx[0]].u_off; 890dec408fdSSteve Longerbeam tile_image.v_offset = image->tile[tile_idx[0]].v_off; 891dec408fdSSteve Longerbeam } 892cd98e85aSSteve Longerbeam 893dec408fdSSteve Longerbeam ipu_cpmem_set_image(channel, &tile_image); 894cd98e85aSSteve Longerbeam 895cd98e85aSSteve Longerbeam if (rot_mode) 896cd98e85aSSteve Longerbeam ipu_cpmem_set_rotation(channel, rot_mode); 897cd98e85aSSteve Longerbeam 898cd98e85aSSteve Longerbeam if (channel == chan->rotation_in_chan || 899cd98e85aSSteve Longerbeam channel == chan->rotation_out_chan) { 900cd98e85aSSteve Longerbeam burst_size = 8; 901cd98e85aSSteve Longerbeam ipu_cpmem_set_block_mode(channel); 902cd98e85aSSteve Longerbeam } else 903cd98e85aSSteve Longerbeam burst_size = (width % 16) ? 8 : 16; 904cd98e85aSSteve Longerbeam 905cd98e85aSSteve Longerbeam ipu_cpmem_set_burstsize(channel, burst_size); 906cd98e85aSSteve Longerbeam 907cd98e85aSSteve Longerbeam ipu_ic_task_idma_init(chan->ic, channel, width, height, 908cd98e85aSSteve Longerbeam burst_size, rot_mode); 909cd98e85aSSteve Longerbeam 910320a89adSLucas Stach /* 911320a89adSLucas Stach * Setting a non-zero AXI ID collides with the PRG AXI snooping, so 912320a89adSLucas Stach * only do this when there is no PRG present. 913320a89adSLucas Stach */ 914320a89adSLucas Stach if (!channel->ipu->prg_priv) 915cd98e85aSSteve Longerbeam ipu_cpmem_set_axi_id(channel, 1); 916cd98e85aSSteve Longerbeam 917cd98e85aSSteve Longerbeam ipu_idmac_set_double_buffer(channel, ctx->double_buffering); 918cd98e85aSSteve Longerbeam } 919cd98e85aSSteve Longerbeam 920dd65d2a9SPhilipp Zabel static int convert_start(struct ipu_image_convert_run *run, unsigned int tile) 921cd98e85aSSteve Longerbeam { 922cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 923cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 924cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 925cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 926cd98e85aSSteve Longerbeam struct ipu_image_convert_image *d_image = &ctx->out; 927cd98e85aSSteve Longerbeam enum ipu_color_space src_cs, dest_cs; 928dd65d2a9SPhilipp Zabel unsigned int dst_tile = ctx->out_tile_map[tile]; 929cd98e85aSSteve Longerbeam unsigned int dest_width, dest_height; 93070b9b6b3SPhilipp Zabel unsigned int col, row; 93170b9b6b3SPhilipp Zabel u32 rsc; 932cd98e85aSSteve Longerbeam int ret; 933cd98e85aSSteve Longerbeam 934dd65d2a9SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: task %u: starting ctx %p run %p tile %u -> %u\n", 935dd65d2a9SPhilipp Zabel __func__, chan->ic_task, ctx, run, tile, dst_tile); 936cd98e85aSSteve Longerbeam 937cd98e85aSSteve Longerbeam src_cs = ipu_pixelformat_to_colorspace(s_image->fmt->fourcc); 938cd98e85aSSteve Longerbeam dest_cs = ipu_pixelformat_to_colorspace(d_image->fmt->fourcc); 939cd98e85aSSteve Longerbeam 940cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 941cd98e85aSSteve Longerbeam /* swap width/height for resizer */ 942dd65d2a9SPhilipp Zabel dest_width = d_image->tile[dst_tile].height; 943dd65d2a9SPhilipp Zabel dest_height = d_image->tile[dst_tile].width; 944cd98e85aSSteve Longerbeam } else { 945dd65d2a9SPhilipp Zabel dest_width = d_image->tile[dst_tile].width; 946dd65d2a9SPhilipp Zabel dest_height = d_image->tile[dst_tile].height; 947cd98e85aSSteve Longerbeam } 948cd98e85aSSteve Longerbeam 94970b9b6b3SPhilipp Zabel row = tile / s_image->num_cols; 95070b9b6b3SPhilipp Zabel col = tile % s_image->num_cols; 95170b9b6b3SPhilipp Zabel 95270b9b6b3SPhilipp Zabel rsc = (ctx->downsize_coeff_v << 30) | 95370b9b6b3SPhilipp Zabel (ctx->resize_coeffs_v[row] << 16) | 95470b9b6b3SPhilipp Zabel (ctx->downsize_coeff_h << 14) | 95570b9b6b3SPhilipp Zabel (ctx->resize_coeffs_h[col]); 95670b9b6b3SPhilipp Zabel 95770b9b6b3SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: %ux%u -> %ux%u (rsc = 0x%x)\n", 95870b9b6b3SPhilipp Zabel __func__, s_image->tile[tile].width, 95970b9b6b3SPhilipp Zabel s_image->tile[tile].height, dest_width, dest_height, rsc); 96070b9b6b3SPhilipp Zabel 961cd98e85aSSteve Longerbeam /* setup the IC resizer and CSC */ 96270b9b6b3SPhilipp Zabel ret = ipu_ic_task_init_rsc(chan->ic, 963dd65d2a9SPhilipp Zabel s_image->tile[tile].width, 964dd65d2a9SPhilipp Zabel s_image->tile[tile].height, 965cd98e85aSSteve Longerbeam dest_width, 966cd98e85aSSteve Longerbeam dest_height, 96770b9b6b3SPhilipp Zabel src_cs, dest_cs, 96870b9b6b3SPhilipp Zabel rsc); 969cd98e85aSSteve Longerbeam if (ret) { 970cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "ipu_ic_task_init failed, %d\n", ret); 971cd98e85aSSteve Longerbeam return ret; 972cd98e85aSSteve Longerbeam } 973cd98e85aSSteve Longerbeam 974cd98e85aSSteve Longerbeam /* init the source MEM-->IC PP IDMAC channel */ 975cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->in_chan, s_image, 976dd65d2a9SPhilipp Zabel IPU_ROTATE_NONE, false, tile); 977cd98e85aSSteve Longerbeam 978cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 979cd98e85aSSteve Longerbeam /* init the IC PP-->MEM IDMAC channel */ 980cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->out_chan, d_image, 981dd65d2a9SPhilipp Zabel IPU_ROTATE_NONE, true, tile); 982cd98e85aSSteve Longerbeam 983cd98e85aSSteve Longerbeam /* init the MEM-->IC PP ROT IDMAC channel */ 984cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->rotation_in_chan, d_image, 985dd65d2a9SPhilipp Zabel ctx->rot_mode, true, tile); 986cd98e85aSSteve Longerbeam 987cd98e85aSSteve Longerbeam /* init the destination IC PP ROT-->MEM IDMAC channel */ 988cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->rotation_out_chan, d_image, 989dd65d2a9SPhilipp Zabel IPU_ROTATE_NONE, false, tile); 990cd98e85aSSteve Longerbeam 991cd98e85aSSteve Longerbeam /* now link IC PP-->MEM to MEM-->IC PP ROT */ 992cd98e85aSSteve Longerbeam ipu_idmac_link(chan->out_chan, chan->rotation_in_chan); 993cd98e85aSSteve Longerbeam } else { 994cd98e85aSSteve Longerbeam /* init the destination IC PP-->MEM IDMAC channel */ 995cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->out_chan, d_image, 996dd65d2a9SPhilipp Zabel ctx->rot_mode, false, tile); 997cd98e85aSSteve Longerbeam } 998cd98e85aSSteve Longerbeam 999cd98e85aSSteve Longerbeam /* enable the IC */ 1000cd98e85aSSteve Longerbeam ipu_ic_enable(chan->ic); 1001cd98e85aSSteve Longerbeam 1002cd98e85aSSteve Longerbeam /* set buffers ready */ 1003cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, 0); 1004cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->out_chan, 0); 1005cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) 1006cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->rotation_out_chan, 0); 1007cd98e85aSSteve Longerbeam if (ctx->double_buffering) { 1008cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, 1); 1009cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->out_chan, 1); 1010cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) 1011cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->rotation_out_chan, 1); 1012cd98e85aSSteve Longerbeam } 1013cd98e85aSSteve Longerbeam 1014cd98e85aSSteve Longerbeam /* enable the channels! */ 1015cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->in_chan); 1016cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->out_chan); 1017cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1018cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->rotation_in_chan); 1019cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->rotation_out_chan); 1020cd98e85aSSteve Longerbeam } 1021cd98e85aSSteve Longerbeam 1022cd98e85aSSteve Longerbeam ipu_ic_task_enable(chan->ic); 1023cd98e85aSSteve Longerbeam 1024cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->in_chan); 1025cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->out_chan); 1026cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1027cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->rotation_in_chan); 1028cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->rotation_out_chan); 1029cd98e85aSSteve Longerbeam } 1030cd98e85aSSteve Longerbeam 1031cd98e85aSSteve Longerbeam ipu_dump(priv->ipu); 1032cd98e85aSSteve Longerbeam 1033cd98e85aSSteve Longerbeam return 0; 1034cd98e85aSSteve Longerbeam } 1035cd98e85aSSteve Longerbeam 1036cd98e85aSSteve Longerbeam /* hold irqlock when calling */ 1037cd98e85aSSteve Longerbeam static int do_run(struct ipu_image_convert_run *run) 1038cd98e85aSSteve Longerbeam { 1039cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 1040cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1041cd98e85aSSteve Longerbeam 1042cd98e85aSSteve Longerbeam lockdep_assert_held(&chan->irqlock); 1043cd98e85aSSteve Longerbeam 1044cd98e85aSSteve Longerbeam ctx->in.base.phys0 = run->in_phys; 1045cd98e85aSSteve Longerbeam ctx->out.base.phys0 = run->out_phys; 1046cd98e85aSSteve Longerbeam 1047cd98e85aSSteve Longerbeam ctx->cur_buf_num = 0; 1048cd98e85aSSteve Longerbeam ctx->next_tile = 1; 1049cd98e85aSSteve Longerbeam 1050cd98e85aSSteve Longerbeam /* remove run from pending_q and set as current */ 1051cd98e85aSSteve Longerbeam list_del(&run->list); 1052cd98e85aSSteve Longerbeam chan->current_run = run; 1053cd98e85aSSteve Longerbeam 1054dd65d2a9SPhilipp Zabel return convert_start(run, 0); 1055cd98e85aSSteve Longerbeam } 1056cd98e85aSSteve Longerbeam 1057cd98e85aSSteve Longerbeam /* hold irqlock when calling */ 1058cd98e85aSSteve Longerbeam static void run_next(struct ipu_image_convert_chan *chan) 1059cd98e85aSSteve Longerbeam { 1060cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1061cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run, *tmp; 1062cd98e85aSSteve Longerbeam int ret; 1063cd98e85aSSteve Longerbeam 1064cd98e85aSSteve Longerbeam lockdep_assert_held(&chan->irqlock); 1065cd98e85aSSteve Longerbeam 1066cd98e85aSSteve Longerbeam list_for_each_entry_safe(run, tmp, &chan->pending_q, list) { 1067cd98e85aSSteve Longerbeam /* skip contexts that are aborting */ 1068cd98e85aSSteve Longerbeam if (run->ctx->aborting) { 1069cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1070cd98e85aSSteve Longerbeam "%s: task %u: skipping aborting ctx %p run %p\n", 1071cd98e85aSSteve Longerbeam __func__, chan->ic_task, run->ctx, run); 1072cd98e85aSSteve Longerbeam continue; 1073cd98e85aSSteve Longerbeam } 1074cd98e85aSSteve Longerbeam 1075cd98e85aSSteve Longerbeam ret = do_run(run); 1076cd98e85aSSteve Longerbeam if (!ret) 1077cd98e85aSSteve Longerbeam break; 1078cd98e85aSSteve Longerbeam 1079cd98e85aSSteve Longerbeam /* 1080cd98e85aSSteve Longerbeam * something went wrong with start, add the run 1081cd98e85aSSteve Longerbeam * to done q and continue to the next run in the 1082cd98e85aSSteve Longerbeam * pending q. 1083cd98e85aSSteve Longerbeam */ 1084cd98e85aSSteve Longerbeam run->status = ret; 1085cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->done_q); 1086cd98e85aSSteve Longerbeam chan->current_run = NULL; 1087cd98e85aSSteve Longerbeam } 1088cd98e85aSSteve Longerbeam } 1089cd98e85aSSteve Longerbeam 1090cd98e85aSSteve Longerbeam static void empty_done_q(struct ipu_image_convert_chan *chan) 1091cd98e85aSSteve Longerbeam { 1092cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1093cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1094cd98e85aSSteve Longerbeam unsigned long flags; 1095cd98e85aSSteve Longerbeam 1096cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1097cd98e85aSSteve Longerbeam 1098cd98e85aSSteve Longerbeam while (!list_empty(&chan->done_q)) { 1099cd98e85aSSteve Longerbeam run = list_entry(chan->done_q.next, 1100cd98e85aSSteve Longerbeam struct ipu_image_convert_run, 1101cd98e85aSSteve Longerbeam list); 1102cd98e85aSSteve Longerbeam 1103cd98e85aSSteve Longerbeam list_del(&run->list); 1104cd98e85aSSteve Longerbeam 1105cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1106cd98e85aSSteve Longerbeam "%s: task %u: completing ctx %p run %p with %d\n", 1107cd98e85aSSteve Longerbeam __func__, chan->ic_task, run->ctx, run, run->status); 1108cd98e85aSSteve Longerbeam 1109cd98e85aSSteve Longerbeam /* call the completion callback and free the run */ 1110cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1111cd98e85aSSteve Longerbeam run->ctx->complete(run, run->ctx->complete_context); 1112cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1113cd98e85aSSteve Longerbeam } 1114cd98e85aSSteve Longerbeam 1115cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1116cd98e85aSSteve Longerbeam } 1117cd98e85aSSteve Longerbeam 1118cd98e85aSSteve Longerbeam /* 1119cd98e85aSSteve Longerbeam * the bottom half thread clears out the done_q, calling the 1120cd98e85aSSteve Longerbeam * completion handler for each. 1121cd98e85aSSteve Longerbeam */ 1122cd98e85aSSteve Longerbeam static irqreturn_t do_bh(int irq, void *dev_id) 1123cd98e85aSSteve Longerbeam { 1124cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = dev_id; 1125cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1126cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1127cd98e85aSSteve Longerbeam unsigned long flags; 1128cd98e85aSSteve Longerbeam 1129cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: enter\n", __func__, 1130cd98e85aSSteve Longerbeam chan->ic_task); 1131cd98e85aSSteve Longerbeam 1132cd98e85aSSteve Longerbeam empty_done_q(chan); 1133cd98e85aSSteve Longerbeam 1134cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1135cd98e85aSSteve Longerbeam 1136cd98e85aSSteve Longerbeam /* 1137cd98e85aSSteve Longerbeam * the done_q is cleared out, signal any contexts 1138cd98e85aSSteve Longerbeam * that are aborting that abort can complete. 1139cd98e85aSSteve Longerbeam */ 1140cd98e85aSSteve Longerbeam list_for_each_entry(ctx, &chan->ctx_list, list) { 1141cd98e85aSSteve Longerbeam if (ctx->aborting) { 1142cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1143cd98e85aSSteve Longerbeam "%s: task %u: signaling abort for ctx %p\n", 1144cd98e85aSSteve Longerbeam __func__, chan->ic_task, ctx); 1145aa60b261SSteve Longerbeam complete_all(&ctx->aborted); 1146cd98e85aSSteve Longerbeam } 1147cd98e85aSSteve Longerbeam } 1148cd98e85aSSteve Longerbeam 1149cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1150cd98e85aSSteve Longerbeam 1151cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: exit\n", __func__, 1152cd98e85aSSteve Longerbeam chan->ic_task); 1153cd98e85aSSteve Longerbeam 1154cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1155cd98e85aSSteve Longerbeam } 1156cd98e85aSSteve Longerbeam 11570537db80SPhilipp Zabel static bool ic_settings_changed(struct ipu_image_convert_ctx *ctx) 11580537db80SPhilipp Zabel { 11590537db80SPhilipp Zabel unsigned int cur_tile = ctx->next_tile - 1; 11600537db80SPhilipp Zabel unsigned int next_tile = ctx->next_tile; 11610537db80SPhilipp Zabel 11620537db80SPhilipp Zabel if (ctx->resize_coeffs_h[cur_tile % ctx->in.num_cols] != 11630537db80SPhilipp Zabel ctx->resize_coeffs_h[next_tile % ctx->in.num_cols] || 11640537db80SPhilipp Zabel ctx->resize_coeffs_v[cur_tile / ctx->in.num_cols] != 11650537db80SPhilipp Zabel ctx->resize_coeffs_v[next_tile / ctx->in.num_cols] || 11660537db80SPhilipp Zabel ctx->in.tile[cur_tile].width != ctx->in.tile[next_tile].width || 11670537db80SPhilipp Zabel ctx->in.tile[cur_tile].height != ctx->in.tile[next_tile].height || 11680537db80SPhilipp Zabel ctx->out.tile[cur_tile].width != ctx->out.tile[next_tile].width || 11690537db80SPhilipp Zabel ctx->out.tile[cur_tile].height != ctx->out.tile[next_tile].height) 11700537db80SPhilipp Zabel return true; 11710537db80SPhilipp Zabel 11720537db80SPhilipp Zabel return false; 11730537db80SPhilipp Zabel } 11740537db80SPhilipp Zabel 1175cd98e85aSSteve Longerbeam /* hold irqlock when calling */ 1176cd98e85aSSteve Longerbeam static irqreturn_t do_irq(struct ipu_image_convert_run *run) 1177cd98e85aSSteve Longerbeam { 1178cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 1179cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1180cd98e85aSSteve Longerbeam struct ipu_image_tile *src_tile, *dst_tile; 1181cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 1182cd98e85aSSteve Longerbeam struct ipu_image_convert_image *d_image = &ctx->out; 1183cd98e85aSSteve Longerbeam struct ipuv3_channel *outch; 1184cd98e85aSSteve Longerbeam unsigned int dst_idx; 1185cd98e85aSSteve Longerbeam 1186cd98e85aSSteve Longerbeam lockdep_assert_held(&chan->irqlock); 1187cd98e85aSSteve Longerbeam 1188cd98e85aSSteve Longerbeam outch = ipu_rot_mode_is_irt(ctx->rot_mode) ? 1189cd98e85aSSteve Longerbeam chan->rotation_out_chan : chan->out_chan; 1190cd98e85aSSteve Longerbeam 1191cd98e85aSSteve Longerbeam /* 1192cd98e85aSSteve Longerbeam * It is difficult to stop the channel DMA before the channels 1193cd98e85aSSteve Longerbeam * enter the paused state. Without double-buffering the channels 1194cd98e85aSSteve Longerbeam * are always in a paused state when the EOF irq occurs, so it 1195cd98e85aSSteve Longerbeam * is safe to stop the channels now. For double-buffering we 1196cd98e85aSSteve Longerbeam * just ignore the abort until the operation completes, when it 1197cd98e85aSSteve Longerbeam * is safe to shut down. 1198cd98e85aSSteve Longerbeam */ 1199cd98e85aSSteve Longerbeam if (ctx->aborting && !ctx->double_buffering) { 1200cd98e85aSSteve Longerbeam convert_stop(run); 1201cd98e85aSSteve Longerbeam run->status = -EIO; 1202cd98e85aSSteve Longerbeam goto done; 1203cd98e85aSSteve Longerbeam } 1204cd98e85aSSteve Longerbeam 1205cd98e85aSSteve Longerbeam if (ctx->next_tile == ctx->num_tiles) { 1206cd98e85aSSteve Longerbeam /* 1207cd98e85aSSteve Longerbeam * the conversion is complete 1208cd98e85aSSteve Longerbeam */ 1209cd98e85aSSteve Longerbeam convert_stop(run); 1210cd98e85aSSteve Longerbeam run->status = 0; 1211cd98e85aSSteve Longerbeam goto done; 1212cd98e85aSSteve Longerbeam } 1213cd98e85aSSteve Longerbeam 1214cd98e85aSSteve Longerbeam /* 1215cd98e85aSSteve Longerbeam * not done, place the next tile buffers. 1216cd98e85aSSteve Longerbeam */ 1217cd98e85aSSteve Longerbeam if (!ctx->double_buffering) { 12180537db80SPhilipp Zabel if (ic_settings_changed(ctx)) { 12190537db80SPhilipp Zabel convert_stop(run); 12200537db80SPhilipp Zabel convert_start(run, ctx->next_tile); 12210537db80SPhilipp Zabel } else { 1222cd98e85aSSteve Longerbeam src_tile = &s_image->tile[ctx->next_tile]; 1223cd98e85aSSteve Longerbeam dst_idx = ctx->out_tile_map[ctx->next_tile]; 1224cd98e85aSSteve Longerbeam dst_tile = &d_image->tile[dst_idx]; 1225cd98e85aSSteve Longerbeam 1226cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(chan->in_chan, 0, 12270537db80SPhilipp Zabel s_image->base.phys0 + 12280537db80SPhilipp Zabel src_tile->offset); 1229cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(outch, 0, 12300537db80SPhilipp Zabel d_image->base.phys0 + 12310537db80SPhilipp Zabel dst_tile->offset); 1232cd98e85aSSteve Longerbeam if (s_image->fmt->planar) 1233cd98e85aSSteve Longerbeam ipu_cpmem_set_uv_offset(chan->in_chan, 1234cd98e85aSSteve Longerbeam src_tile->u_off, 1235cd98e85aSSteve Longerbeam src_tile->v_off); 1236cd98e85aSSteve Longerbeam if (d_image->fmt->planar) 1237cd98e85aSSteve Longerbeam ipu_cpmem_set_uv_offset(outch, 1238cd98e85aSSteve Longerbeam dst_tile->u_off, 1239cd98e85aSSteve Longerbeam dst_tile->v_off); 1240cd98e85aSSteve Longerbeam 1241cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, 0); 1242cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(outch, 0); 12430537db80SPhilipp Zabel } 1244cd98e85aSSteve Longerbeam } else if (ctx->next_tile < ctx->num_tiles - 1) { 1245cd98e85aSSteve Longerbeam 1246cd98e85aSSteve Longerbeam src_tile = &s_image->tile[ctx->next_tile + 1]; 1247cd98e85aSSteve Longerbeam dst_idx = ctx->out_tile_map[ctx->next_tile + 1]; 1248cd98e85aSSteve Longerbeam dst_tile = &d_image->tile[dst_idx]; 1249cd98e85aSSteve Longerbeam 1250cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(chan->in_chan, ctx->cur_buf_num, 1251cd98e85aSSteve Longerbeam s_image->base.phys0 + src_tile->offset); 1252cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(outch, ctx->cur_buf_num, 1253cd98e85aSSteve Longerbeam d_image->base.phys0 + dst_tile->offset); 1254cd98e85aSSteve Longerbeam 1255cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, ctx->cur_buf_num); 1256cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(outch, ctx->cur_buf_num); 1257cd98e85aSSteve Longerbeam 1258cd98e85aSSteve Longerbeam ctx->cur_buf_num ^= 1; 1259cd98e85aSSteve Longerbeam } 1260cd98e85aSSteve Longerbeam 1261cd98e85aSSteve Longerbeam ctx->next_tile++; 1262cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1263cd98e85aSSteve Longerbeam done: 1264cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->done_q); 1265cd98e85aSSteve Longerbeam chan->current_run = NULL; 1266cd98e85aSSteve Longerbeam run_next(chan); 1267cd98e85aSSteve Longerbeam return IRQ_WAKE_THREAD; 1268cd98e85aSSteve Longerbeam } 1269cd98e85aSSteve Longerbeam 1270cd98e85aSSteve Longerbeam static irqreturn_t norotate_irq(int irq, void *data) 1271cd98e85aSSteve Longerbeam { 1272cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = data; 1273cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1274cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1275cd98e85aSSteve Longerbeam unsigned long flags; 1276cd98e85aSSteve Longerbeam irqreturn_t ret; 1277cd98e85aSSteve Longerbeam 1278cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1279cd98e85aSSteve Longerbeam 1280cd98e85aSSteve Longerbeam /* get current run and its context */ 1281cd98e85aSSteve Longerbeam run = chan->current_run; 1282cd98e85aSSteve Longerbeam if (!run) { 1283cd98e85aSSteve Longerbeam ret = IRQ_NONE; 1284cd98e85aSSteve Longerbeam goto out; 1285cd98e85aSSteve Longerbeam } 1286cd98e85aSSteve Longerbeam 1287cd98e85aSSteve Longerbeam ctx = run->ctx; 1288cd98e85aSSteve Longerbeam 1289cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1290cd98e85aSSteve Longerbeam /* this is a rotation operation, just ignore */ 1291cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1292cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1293cd98e85aSSteve Longerbeam } 1294cd98e85aSSteve Longerbeam 1295cd98e85aSSteve Longerbeam ret = do_irq(run); 1296cd98e85aSSteve Longerbeam out: 1297cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1298cd98e85aSSteve Longerbeam return ret; 1299cd98e85aSSteve Longerbeam } 1300cd98e85aSSteve Longerbeam 1301cd98e85aSSteve Longerbeam static irqreturn_t rotate_irq(int irq, void *data) 1302cd98e85aSSteve Longerbeam { 1303cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = data; 1304cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1305cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1306cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1307cd98e85aSSteve Longerbeam unsigned long flags; 1308cd98e85aSSteve Longerbeam irqreturn_t ret; 1309cd98e85aSSteve Longerbeam 1310cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1311cd98e85aSSteve Longerbeam 1312cd98e85aSSteve Longerbeam /* get current run and its context */ 1313cd98e85aSSteve Longerbeam run = chan->current_run; 1314cd98e85aSSteve Longerbeam if (!run) { 1315cd98e85aSSteve Longerbeam ret = IRQ_NONE; 1316cd98e85aSSteve Longerbeam goto out; 1317cd98e85aSSteve Longerbeam } 1318cd98e85aSSteve Longerbeam 1319cd98e85aSSteve Longerbeam ctx = run->ctx; 1320cd98e85aSSteve Longerbeam 1321cd98e85aSSteve Longerbeam if (!ipu_rot_mode_is_irt(ctx->rot_mode)) { 1322cd98e85aSSteve Longerbeam /* this was NOT a rotation operation, shouldn't happen */ 1323cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "Unexpected rotation interrupt\n"); 1324cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1325cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1326cd98e85aSSteve Longerbeam } 1327cd98e85aSSteve Longerbeam 1328cd98e85aSSteve Longerbeam ret = do_irq(run); 1329cd98e85aSSteve Longerbeam out: 1330cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1331cd98e85aSSteve Longerbeam return ret; 1332cd98e85aSSteve Longerbeam } 1333cd98e85aSSteve Longerbeam 1334cd98e85aSSteve Longerbeam /* 1335cd98e85aSSteve Longerbeam * try to force the completion of runs for this ctx. Called when 1336cd98e85aSSteve Longerbeam * abort wait times out in ipu_image_convert_abort(). 1337cd98e85aSSteve Longerbeam */ 1338cd98e85aSSteve Longerbeam static void force_abort(struct ipu_image_convert_ctx *ctx) 1339cd98e85aSSteve Longerbeam { 1340cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1341cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1342cd98e85aSSteve Longerbeam unsigned long flags; 1343cd98e85aSSteve Longerbeam 1344cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1345cd98e85aSSteve Longerbeam 1346cd98e85aSSteve Longerbeam run = chan->current_run; 1347cd98e85aSSteve Longerbeam if (run && run->ctx == ctx) { 1348cd98e85aSSteve Longerbeam convert_stop(run); 1349cd98e85aSSteve Longerbeam run->status = -EIO; 1350cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->done_q); 1351cd98e85aSSteve Longerbeam chan->current_run = NULL; 1352cd98e85aSSteve Longerbeam run_next(chan); 1353cd98e85aSSteve Longerbeam } 1354cd98e85aSSteve Longerbeam 1355cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1356cd98e85aSSteve Longerbeam 1357cd98e85aSSteve Longerbeam empty_done_q(chan); 1358cd98e85aSSteve Longerbeam } 1359cd98e85aSSteve Longerbeam 1360cd98e85aSSteve Longerbeam static void release_ipu_resources(struct ipu_image_convert_chan *chan) 1361cd98e85aSSteve Longerbeam { 1362cd98e85aSSteve Longerbeam if (chan->out_eof_irq >= 0) 1363cd98e85aSSteve Longerbeam free_irq(chan->out_eof_irq, chan); 1364cd98e85aSSteve Longerbeam if (chan->rot_out_eof_irq >= 0) 1365cd98e85aSSteve Longerbeam free_irq(chan->rot_out_eof_irq, chan); 1366cd98e85aSSteve Longerbeam 1367cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->in_chan)) 1368cd98e85aSSteve Longerbeam ipu_idmac_put(chan->in_chan); 1369cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->out_chan)) 1370cd98e85aSSteve Longerbeam ipu_idmac_put(chan->out_chan); 1371cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->rotation_in_chan)) 1372cd98e85aSSteve Longerbeam ipu_idmac_put(chan->rotation_in_chan); 1373cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->rotation_out_chan)) 1374cd98e85aSSteve Longerbeam ipu_idmac_put(chan->rotation_out_chan); 1375cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->ic)) 1376cd98e85aSSteve Longerbeam ipu_ic_put(chan->ic); 1377cd98e85aSSteve Longerbeam 1378cd98e85aSSteve Longerbeam chan->in_chan = chan->out_chan = chan->rotation_in_chan = 1379cd98e85aSSteve Longerbeam chan->rotation_out_chan = NULL; 1380cd98e85aSSteve Longerbeam chan->out_eof_irq = chan->rot_out_eof_irq = -1; 1381cd98e85aSSteve Longerbeam } 1382cd98e85aSSteve Longerbeam 1383cd98e85aSSteve Longerbeam static int get_ipu_resources(struct ipu_image_convert_chan *chan) 1384cd98e85aSSteve Longerbeam { 1385cd98e85aSSteve Longerbeam const struct ipu_image_convert_dma_chan *dma = chan->dma_ch; 1386cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1387cd98e85aSSteve Longerbeam int ret; 1388cd98e85aSSteve Longerbeam 1389cd98e85aSSteve Longerbeam /* get IC */ 1390cd98e85aSSteve Longerbeam chan->ic = ipu_ic_get(priv->ipu, chan->ic_task); 1391cd98e85aSSteve Longerbeam if (IS_ERR(chan->ic)) { 1392cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire IC\n"); 1393cd98e85aSSteve Longerbeam ret = PTR_ERR(chan->ic); 1394cd98e85aSSteve Longerbeam goto err; 1395cd98e85aSSteve Longerbeam } 1396cd98e85aSSteve Longerbeam 1397cd98e85aSSteve Longerbeam /* get IDMAC channels */ 1398cd98e85aSSteve Longerbeam chan->in_chan = ipu_idmac_get(priv->ipu, dma->in); 1399cd98e85aSSteve Longerbeam chan->out_chan = ipu_idmac_get(priv->ipu, dma->out); 1400cd98e85aSSteve Longerbeam if (IS_ERR(chan->in_chan) || IS_ERR(chan->out_chan)) { 1401cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire idmac channels\n"); 1402cd98e85aSSteve Longerbeam ret = -EBUSY; 1403cd98e85aSSteve Longerbeam goto err; 1404cd98e85aSSteve Longerbeam } 1405cd98e85aSSteve Longerbeam 1406cd98e85aSSteve Longerbeam chan->rotation_in_chan = ipu_idmac_get(priv->ipu, dma->rot_in); 1407cd98e85aSSteve Longerbeam chan->rotation_out_chan = ipu_idmac_get(priv->ipu, dma->rot_out); 1408cd98e85aSSteve Longerbeam if (IS_ERR(chan->rotation_in_chan) || IS_ERR(chan->rotation_out_chan)) { 1409cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, 1410cd98e85aSSteve Longerbeam "could not acquire idmac rotation channels\n"); 1411cd98e85aSSteve Longerbeam ret = -EBUSY; 1412cd98e85aSSteve Longerbeam goto err; 1413cd98e85aSSteve Longerbeam } 1414cd98e85aSSteve Longerbeam 1415cd98e85aSSteve Longerbeam /* acquire the EOF interrupts */ 1416cd98e85aSSteve Longerbeam chan->out_eof_irq = ipu_idmac_channel_irq(priv->ipu, 1417cd98e85aSSteve Longerbeam chan->out_chan, 1418cd98e85aSSteve Longerbeam IPU_IRQ_EOF); 1419cd98e85aSSteve Longerbeam 1420cd98e85aSSteve Longerbeam ret = request_threaded_irq(chan->out_eof_irq, norotate_irq, do_bh, 1421cd98e85aSSteve Longerbeam 0, "ipu-ic", chan); 1422cd98e85aSSteve Longerbeam if (ret < 0) { 1423cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire irq %d\n", 1424cd98e85aSSteve Longerbeam chan->out_eof_irq); 1425cd98e85aSSteve Longerbeam chan->out_eof_irq = -1; 1426cd98e85aSSteve Longerbeam goto err; 1427cd98e85aSSteve Longerbeam } 1428cd98e85aSSteve Longerbeam 1429cd98e85aSSteve Longerbeam chan->rot_out_eof_irq = ipu_idmac_channel_irq(priv->ipu, 1430cd98e85aSSteve Longerbeam chan->rotation_out_chan, 1431cd98e85aSSteve Longerbeam IPU_IRQ_EOF); 1432cd98e85aSSteve Longerbeam 1433cd98e85aSSteve Longerbeam ret = request_threaded_irq(chan->rot_out_eof_irq, rotate_irq, do_bh, 1434cd98e85aSSteve Longerbeam 0, "ipu-ic", chan); 1435cd98e85aSSteve Longerbeam if (ret < 0) { 1436cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire irq %d\n", 1437cd98e85aSSteve Longerbeam chan->rot_out_eof_irq); 1438cd98e85aSSteve Longerbeam chan->rot_out_eof_irq = -1; 1439cd98e85aSSteve Longerbeam goto err; 1440cd98e85aSSteve Longerbeam } 1441cd98e85aSSteve Longerbeam 1442cd98e85aSSteve Longerbeam return 0; 1443cd98e85aSSteve Longerbeam err: 1444cd98e85aSSteve Longerbeam release_ipu_resources(chan); 1445cd98e85aSSteve Longerbeam return ret; 1446cd98e85aSSteve Longerbeam } 1447cd98e85aSSteve Longerbeam 1448cd98e85aSSteve Longerbeam static int fill_image(struct ipu_image_convert_ctx *ctx, 1449cd98e85aSSteve Longerbeam struct ipu_image_convert_image *ic_image, 1450cd98e85aSSteve Longerbeam struct ipu_image *image, 1451cd98e85aSSteve Longerbeam enum ipu_image_convert_type type) 1452cd98e85aSSteve Longerbeam { 1453cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = ctx->chan->priv; 1454cd98e85aSSteve Longerbeam 1455cd98e85aSSteve Longerbeam ic_image->base = *image; 1456cd98e85aSSteve Longerbeam ic_image->type = type; 1457cd98e85aSSteve Longerbeam 1458cd98e85aSSteve Longerbeam ic_image->fmt = get_format(image->pix.pixelformat); 1459cd98e85aSSteve Longerbeam if (!ic_image->fmt) { 1460cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "pixelformat not supported for %s\n", 1461cd98e85aSSteve Longerbeam type == IMAGE_CONVERT_OUT ? "Output" : "Input"); 1462cd98e85aSSteve Longerbeam return -EINVAL; 1463cd98e85aSSteve Longerbeam } 1464cd98e85aSSteve Longerbeam 1465cd98e85aSSteve Longerbeam if (ic_image->fmt->planar) 1466cd98e85aSSteve Longerbeam ic_image->stride = ic_image->base.pix.width; 1467cd98e85aSSteve Longerbeam else 1468cd98e85aSSteve Longerbeam ic_image->stride = ic_image->base.pix.bytesperline; 1469cd98e85aSSteve Longerbeam 1470cd98e85aSSteve Longerbeam calc_tile_dimensions(ctx, ic_image); 1471cd98e85aSSteve Longerbeam 1472c4e45658SSteve Longerbeam return calc_tile_offsets(ctx, ic_image); 1473cd98e85aSSteve Longerbeam } 1474cd98e85aSSteve Longerbeam 1475cd98e85aSSteve Longerbeam /* borrowed from drivers/media/v4l2-core/v4l2-common.c */ 1476cd98e85aSSteve Longerbeam static unsigned int clamp_align(unsigned int x, unsigned int min, 1477cd98e85aSSteve Longerbeam unsigned int max, unsigned int align) 1478cd98e85aSSteve Longerbeam { 1479cd98e85aSSteve Longerbeam /* Bits that must be zero to be aligned */ 1480cd98e85aSSteve Longerbeam unsigned int mask = ~((1 << align) - 1); 1481cd98e85aSSteve Longerbeam 1482cd98e85aSSteve Longerbeam /* Clamp to aligned min and max */ 1483cd98e85aSSteve Longerbeam x = clamp(x, (min + ~mask) & mask, max & mask); 1484cd98e85aSSteve Longerbeam 1485cd98e85aSSteve Longerbeam /* Round to nearest aligned value */ 1486cd98e85aSSteve Longerbeam if (align) 1487cd98e85aSSteve Longerbeam x = (x + (1 << (align - 1))) & mask; 1488cd98e85aSSteve Longerbeam 1489cd98e85aSSteve Longerbeam return x; 1490cd98e85aSSteve Longerbeam } 1491cd98e85aSSteve Longerbeam 1492cd98e85aSSteve Longerbeam /* 1493cd98e85aSSteve Longerbeam * We have to adjust the tile width such that the tile physaddrs and 1494cd98e85aSSteve Longerbeam * U and V plane offsets are multiples of 8 bytes as required by 1495cd98e85aSSteve Longerbeam * the IPU DMA Controller. For the planar formats, this corresponds 1496cd98e85aSSteve Longerbeam * to a pixel alignment of 16 (but use a more formal equation since 1497cd98e85aSSteve Longerbeam * the variables are available). For all the packed formats, 8 is 1498cd98e85aSSteve Longerbeam * good enough. 1499cd98e85aSSteve Longerbeam */ 1500cd98e85aSSteve Longerbeam static inline u32 tile_width_align(const struct ipu_image_pixfmt *fmt) 1501cd98e85aSSteve Longerbeam { 1502cd98e85aSSteve Longerbeam return fmt->planar ? 8 * fmt->uv_width_dec : 8; 1503cd98e85aSSteve Longerbeam } 1504cd98e85aSSteve Longerbeam 1505cd98e85aSSteve Longerbeam /* 1506cd98e85aSSteve Longerbeam * For tile height alignment, we have to ensure that the output tile 1507cd98e85aSSteve Longerbeam * heights are multiples of 8 lines if the IRT is required by the 1508cd98e85aSSteve Longerbeam * given rotation mode (the IRT performs rotations on 8x8 blocks 1509cd98e85aSSteve Longerbeam * at a time). If the IRT is not used, or for input image tiles, 1510cd98e85aSSteve Longerbeam * 2 lines are good enough. 1511cd98e85aSSteve Longerbeam */ 1512cd98e85aSSteve Longerbeam static inline u32 tile_height_align(enum ipu_image_convert_type type, 1513cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1514cd98e85aSSteve Longerbeam { 1515cd98e85aSSteve Longerbeam return (type == IMAGE_CONVERT_OUT && 1516cd98e85aSSteve Longerbeam ipu_rot_mode_is_irt(rot_mode)) ? 8 : 2; 1517cd98e85aSSteve Longerbeam } 1518cd98e85aSSteve Longerbeam 1519cd98e85aSSteve Longerbeam /* Adjusts input/output images to IPU restrictions */ 1520cd98e85aSSteve Longerbeam void ipu_image_convert_adjust(struct ipu_image *in, struct ipu_image *out, 1521cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1522cd98e85aSSteve Longerbeam { 1523cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *infmt, *outfmt; 1524cd98e85aSSteve Longerbeam unsigned int num_in_rows, num_in_cols; 1525cd98e85aSSteve Longerbeam unsigned int num_out_rows, num_out_cols; 1526cd98e85aSSteve Longerbeam u32 w_align, h_align; 1527cd98e85aSSteve Longerbeam 1528cd98e85aSSteve Longerbeam infmt = get_format(in->pix.pixelformat); 1529cd98e85aSSteve Longerbeam outfmt = get_format(out->pix.pixelformat); 1530cd98e85aSSteve Longerbeam 1531cd98e85aSSteve Longerbeam /* set some default pixel formats if needed */ 1532cd98e85aSSteve Longerbeam if (!infmt) { 1533cd98e85aSSteve Longerbeam in->pix.pixelformat = V4L2_PIX_FMT_RGB24; 1534cd98e85aSSteve Longerbeam infmt = get_format(V4L2_PIX_FMT_RGB24); 1535cd98e85aSSteve Longerbeam } 1536cd98e85aSSteve Longerbeam if (!outfmt) { 1537cd98e85aSSteve Longerbeam out->pix.pixelformat = V4L2_PIX_FMT_RGB24; 1538cd98e85aSSteve Longerbeam outfmt = get_format(V4L2_PIX_FMT_RGB24); 1539cd98e85aSSteve Longerbeam } 1540cd98e85aSSteve Longerbeam 1541cd98e85aSSteve Longerbeam /* image converter does not handle fields */ 1542cd98e85aSSteve Longerbeam in->pix.field = out->pix.field = V4L2_FIELD_NONE; 1543cd98e85aSSteve Longerbeam 1544cd98e85aSSteve Longerbeam /* resizer cannot downsize more than 4:1 */ 1545cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(rot_mode)) { 1546cd98e85aSSteve Longerbeam out->pix.height = max_t(__u32, out->pix.height, 1547cd98e85aSSteve Longerbeam in->pix.width / 4); 1548cd98e85aSSteve Longerbeam out->pix.width = max_t(__u32, out->pix.width, 1549cd98e85aSSteve Longerbeam in->pix.height / 4); 1550cd98e85aSSteve Longerbeam } else { 1551cd98e85aSSteve Longerbeam out->pix.width = max_t(__u32, out->pix.width, 1552cd98e85aSSteve Longerbeam in->pix.width / 4); 1553cd98e85aSSteve Longerbeam out->pix.height = max_t(__u32, out->pix.height, 1554cd98e85aSSteve Longerbeam in->pix.height / 4); 1555cd98e85aSSteve Longerbeam } 1556cd98e85aSSteve Longerbeam 1557cd98e85aSSteve Longerbeam /* get tiling rows/cols from output format */ 1558cd98e85aSSteve Longerbeam num_out_rows = num_stripes(out->pix.height); 1559cd98e85aSSteve Longerbeam num_out_cols = num_stripes(out->pix.width); 1560cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(rot_mode)) { 1561cd98e85aSSteve Longerbeam num_in_rows = num_out_cols; 1562cd98e85aSSteve Longerbeam num_in_cols = num_out_rows; 1563cd98e85aSSteve Longerbeam } else { 1564cd98e85aSSteve Longerbeam num_in_rows = num_out_rows; 1565cd98e85aSSteve Longerbeam num_in_cols = num_out_cols; 1566cd98e85aSSteve Longerbeam } 1567cd98e85aSSteve Longerbeam 1568cd98e85aSSteve Longerbeam /* align input width/height */ 1569cd98e85aSSteve Longerbeam w_align = ilog2(tile_width_align(infmt) * num_in_cols); 1570cd98e85aSSteve Longerbeam h_align = ilog2(tile_height_align(IMAGE_CONVERT_IN, rot_mode) * 1571cd98e85aSSteve Longerbeam num_in_rows); 1572cd98e85aSSteve Longerbeam in->pix.width = clamp_align(in->pix.width, MIN_W, MAX_W, w_align); 1573cd98e85aSSteve Longerbeam in->pix.height = clamp_align(in->pix.height, MIN_H, MAX_H, h_align); 1574cd98e85aSSteve Longerbeam 1575cd98e85aSSteve Longerbeam /* align output width/height */ 1576cd98e85aSSteve Longerbeam w_align = ilog2(tile_width_align(outfmt) * num_out_cols); 1577cd98e85aSSteve Longerbeam h_align = ilog2(tile_height_align(IMAGE_CONVERT_OUT, rot_mode) * 1578cd98e85aSSteve Longerbeam num_out_rows); 1579cd98e85aSSteve Longerbeam out->pix.width = clamp_align(out->pix.width, MIN_W, MAX_W, w_align); 1580cd98e85aSSteve Longerbeam out->pix.height = clamp_align(out->pix.height, MIN_H, MAX_H, h_align); 1581cd98e85aSSteve Longerbeam 1582cd98e85aSSteve Longerbeam /* set input/output strides and image sizes */ 1583cd98e85aSSteve Longerbeam in->pix.bytesperline = (in->pix.width * infmt->bpp) >> 3; 1584cd98e85aSSteve Longerbeam in->pix.sizeimage = in->pix.height * in->pix.bytesperline; 1585cd98e85aSSteve Longerbeam out->pix.bytesperline = (out->pix.width * outfmt->bpp) >> 3; 1586cd98e85aSSteve Longerbeam out->pix.sizeimage = out->pix.height * out->pix.bytesperline; 1587cd98e85aSSteve Longerbeam } 1588cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_adjust); 1589cd98e85aSSteve Longerbeam 1590cd98e85aSSteve Longerbeam /* 1591cd98e85aSSteve Longerbeam * this is used by ipu_image_convert_prepare() to verify set input and 1592cd98e85aSSteve Longerbeam * output images are valid before starting the conversion. Clients can 1593cd98e85aSSteve Longerbeam * also call it before calling ipu_image_convert_prepare(). 1594cd98e85aSSteve Longerbeam */ 1595cd98e85aSSteve Longerbeam int ipu_image_convert_verify(struct ipu_image *in, struct ipu_image *out, 1596cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1597cd98e85aSSteve Longerbeam { 1598cd98e85aSSteve Longerbeam struct ipu_image testin, testout; 1599cd98e85aSSteve Longerbeam 1600cd98e85aSSteve Longerbeam testin = *in; 1601cd98e85aSSteve Longerbeam testout = *out; 1602cd98e85aSSteve Longerbeam 1603cd98e85aSSteve Longerbeam ipu_image_convert_adjust(&testin, &testout, rot_mode); 1604cd98e85aSSteve Longerbeam 1605cd98e85aSSteve Longerbeam if (testin.pix.width != in->pix.width || 1606cd98e85aSSteve Longerbeam testin.pix.height != in->pix.height || 1607cd98e85aSSteve Longerbeam testout.pix.width != out->pix.width || 1608cd98e85aSSteve Longerbeam testout.pix.height != out->pix.height) 1609cd98e85aSSteve Longerbeam return -EINVAL; 1610cd98e85aSSteve Longerbeam 1611cd98e85aSSteve Longerbeam return 0; 1612cd98e85aSSteve Longerbeam } 1613cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_verify); 1614cd98e85aSSteve Longerbeam 1615cd98e85aSSteve Longerbeam /* 1616cd98e85aSSteve Longerbeam * Call ipu_image_convert_prepare() to prepare for the conversion of 1617cd98e85aSSteve Longerbeam * given images and rotation mode. Returns a new conversion context. 1618cd98e85aSSteve Longerbeam */ 1619cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx * 1620cd98e85aSSteve Longerbeam ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task, 1621cd98e85aSSteve Longerbeam struct ipu_image *in, struct ipu_image *out, 1622cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode, 1623cd98e85aSSteve Longerbeam ipu_image_convert_cb_t complete, 1624cd98e85aSSteve Longerbeam void *complete_context) 1625cd98e85aSSteve Longerbeam { 1626cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = ipu->image_convert_priv; 1627cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image, *d_image; 1628cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan; 1629cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1630cd98e85aSSteve Longerbeam unsigned long flags; 1631cd98e85aSSteve Longerbeam bool get_res; 1632cd98e85aSSteve Longerbeam int ret; 1633cd98e85aSSteve Longerbeam 1634cd98e85aSSteve Longerbeam if (!in || !out || !complete || 1635cd98e85aSSteve Longerbeam (ic_task != IC_TASK_VIEWFINDER && 1636cd98e85aSSteve Longerbeam ic_task != IC_TASK_POST_PROCESSOR)) 1637cd98e85aSSteve Longerbeam return ERR_PTR(-EINVAL); 1638cd98e85aSSteve Longerbeam 1639cd98e85aSSteve Longerbeam /* verify the in/out images before continuing */ 1640cd98e85aSSteve Longerbeam ret = ipu_image_convert_verify(in, out, rot_mode); 1641cd98e85aSSteve Longerbeam if (ret) { 1642cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "%s: in/out formats invalid\n", 1643cd98e85aSSteve Longerbeam __func__); 1644cd98e85aSSteve Longerbeam return ERR_PTR(ret); 1645cd98e85aSSteve Longerbeam } 1646cd98e85aSSteve Longerbeam 1647cd98e85aSSteve Longerbeam chan = &priv->chan[ic_task]; 1648cd98e85aSSteve Longerbeam 1649cd98e85aSSteve Longerbeam ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 1650cd98e85aSSteve Longerbeam if (!ctx) 1651cd98e85aSSteve Longerbeam return ERR_PTR(-ENOMEM); 1652cd98e85aSSteve Longerbeam 1653cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p\n", __func__, 1654cd98e85aSSteve Longerbeam chan->ic_task, ctx); 1655cd98e85aSSteve Longerbeam 1656cd98e85aSSteve Longerbeam ctx->chan = chan; 1657cd98e85aSSteve Longerbeam init_completion(&ctx->aborted); 1658cd98e85aSSteve Longerbeam 1659cd98e85aSSteve Longerbeam s_image = &ctx->in; 1660cd98e85aSSteve Longerbeam d_image = &ctx->out; 1661cd98e85aSSteve Longerbeam 1662cd98e85aSSteve Longerbeam /* set tiling and rotation */ 1663cd98e85aSSteve Longerbeam d_image->num_rows = num_stripes(out->pix.height); 1664cd98e85aSSteve Longerbeam d_image->num_cols = num_stripes(out->pix.width); 1665cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(rot_mode)) { 1666cd98e85aSSteve Longerbeam s_image->num_rows = d_image->num_cols; 1667cd98e85aSSteve Longerbeam s_image->num_cols = d_image->num_rows; 1668cd98e85aSSteve Longerbeam } else { 1669cd98e85aSSteve Longerbeam s_image->num_rows = d_image->num_rows; 1670cd98e85aSSteve Longerbeam s_image->num_cols = d_image->num_cols; 1671cd98e85aSSteve Longerbeam } 1672cd98e85aSSteve Longerbeam 1673cd98e85aSSteve Longerbeam ctx->num_tiles = d_image->num_cols * d_image->num_rows; 1674cd98e85aSSteve Longerbeam ctx->rot_mode = rot_mode; 1675cd98e85aSSteve Longerbeam 167670b9b6b3SPhilipp Zabel ret = calc_image_resize_coefficients(ctx, in, out); 167770b9b6b3SPhilipp Zabel if (ret) 167870b9b6b3SPhilipp Zabel goto out_free; 167970b9b6b3SPhilipp Zabel 1680cd98e85aSSteve Longerbeam ret = fill_image(ctx, s_image, in, IMAGE_CONVERT_IN); 1681cd98e85aSSteve Longerbeam if (ret) 1682cd98e85aSSteve Longerbeam goto out_free; 1683cd98e85aSSteve Longerbeam ret = fill_image(ctx, d_image, out, IMAGE_CONVERT_OUT); 1684cd98e85aSSteve Longerbeam if (ret) 1685cd98e85aSSteve Longerbeam goto out_free; 1686cd98e85aSSteve Longerbeam 1687cd98e85aSSteve Longerbeam calc_out_tile_map(ctx); 168870b9b6b3SPhilipp Zabel calc_tile_resize_coefficients(ctx); 1689cd98e85aSSteve Longerbeam 1690cd98e85aSSteve Longerbeam dump_format(ctx, s_image); 1691cd98e85aSSteve Longerbeam dump_format(ctx, d_image); 1692cd98e85aSSteve Longerbeam 1693cd98e85aSSteve Longerbeam ctx->complete = complete; 1694cd98e85aSSteve Longerbeam ctx->complete_context = complete_context; 1695cd98e85aSSteve Longerbeam 1696cd98e85aSSteve Longerbeam /* 1697cd98e85aSSteve Longerbeam * Can we use double-buffering for this operation? If there is 1698cd98e85aSSteve Longerbeam * only one tile (the whole image can be converted in a single 1699cd98e85aSSteve Longerbeam * operation) there's no point in using double-buffering. Also, 1700cd98e85aSSteve Longerbeam * the IPU's IDMAC channels allow only a single U and V plane 1701cd98e85aSSteve Longerbeam * offset shared between both buffers, but these offsets change 1702cd98e85aSSteve Longerbeam * for every tile, and therefore would have to be updated for 1703cd98e85aSSteve Longerbeam * each buffer which is not possible. So double-buffering is 1704cd98e85aSSteve Longerbeam * impossible when either the source or destination images are 1705cd98e85aSSteve Longerbeam * a planar format (YUV420, YUV422P, etc.). 1706cd98e85aSSteve Longerbeam */ 1707cd98e85aSSteve Longerbeam ctx->double_buffering = (ctx->num_tiles > 1 && 1708cd98e85aSSteve Longerbeam !s_image->fmt->planar && 1709cd98e85aSSteve Longerbeam !d_image->fmt->planar); 1710cd98e85aSSteve Longerbeam 1711cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1712dd65d2a9SPhilipp Zabel unsigned long intermediate_size = d_image->tile[0].size; 1713dd65d2a9SPhilipp Zabel unsigned int i; 1714dd65d2a9SPhilipp Zabel 1715dd65d2a9SPhilipp Zabel for (i = 1; i < ctx->num_tiles; i++) { 1716dd65d2a9SPhilipp Zabel if (d_image->tile[i].size > intermediate_size) 1717dd65d2a9SPhilipp Zabel intermediate_size = d_image->tile[i].size; 1718dd65d2a9SPhilipp Zabel } 1719dd65d2a9SPhilipp Zabel 1720cd98e85aSSteve Longerbeam ret = alloc_dma_buf(priv, &ctx->rot_intermediate[0], 1721dd65d2a9SPhilipp Zabel intermediate_size); 1722cd98e85aSSteve Longerbeam if (ret) 1723cd98e85aSSteve Longerbeam goto out_free; 1724cd98e85aSSteve Longerbeam if (ctx->double_buffering) { 1725cd98e85aSSteve Longerbeam ret = alloc_dma_buf(priv, 1726cd98e85aSSteve Longerbeam &ctx->rot_intermediate[1], 1727dd65d2a9SPhilipp Zabel intermediate_size); 1728cd98e85aSSteve Longerbeam if (ret) 1729cd98e85aSSteve Longerbeam goto out_free_dmabuf0; 1730cd98e85aSSteve Longerbeam } 1731cd98e85aSSteve Longerbeam } 1732cd98e85aSSteve Longerbeam 1733cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1734cd98e85aSSteve Longerbeam 1735cd98e85aSSteve Longerbeam get_res = list_empty(&chan->ctx_list); 1736cd98e85aSSteve Longerbeam 1737cd98e85aSSteve Longerbeam list_add_tail(&ctx->list, &chan->ctx_list); 1738cd98e85aSSteve Longerbeam 1739cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1740cd98e85aSSteve Longerbeam 1741cd98e85aSSteve Longerbeam if (get_res) { 1742cd98e85aSSteve Longerbeam ret = get_ipu_resources(chan); 1743cd98e85aSSteve Longerbeam if (ret) 1744cd98e85aSSteve Longerbeam goto out_free_dmabuf1; 1745cd98e85aSSteve Longerbeam } 1746cd98e85aSSteve Longerbeam 1747cd98e85aSSteve Longerbeam return ctx; 1748cd98e85aSSteve Longerbeam 1749cd98e85aSSteve Longerbeam out_free_dmabuf1: 1750cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[1]); 1751cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1752cd98e85aSSteve Longerbeam list_del(&ctx->list); 1753cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1754cd98e85aSSteve Longerbeam out_free_dmabuf0: 1755cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[0]); 1756cd98e85aSSteve Longerbeam out_free: 1757cd98e85aSSteve Longerbeam kfree(ctx); 1758cd98e85aSSteve Longerbeam return ERR_PTR(ret); 1759cd98e85aSSteve Longerbeam } 1760cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_prepare); 1761cd98e85aSSteve Longerbeam 1762cd98e85aSSteve Longerbeam /* 1763cd98e85aSSteve Longerbeam * Carry out a single image conversion run. Only the physaddr's of the input 1764cd98e85aSSteve Longerbeam * and output image buffers are needed. The conversion context must have 1765cd98e85aSSteve Longerbeam * been created previously with ipu_image_convert_prepare(). 1766cd98e85aSSteve Longerbeam */ 1767cd98e85aSSteve Longerbeam int ipu_image_convert_queue(struct ipu_image_convert_run *run) 1768cd98e85aSSteve Longerbeam { 1769cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan; 1770cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv; 1771cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1772cd98e85aSSteve Longerbeam unsigned long flags; 1773cd98e85aSSteve Longerbeam int ret = 0; 1774cd98e85aSSteve Longerbeam 1775cd98e85aSSteve Longerbeam if (!run || !run->ctx || !run->in_phys || !run->out_phys) 1776cd98e85aSSteve Longerbeam return -EINVAL; 1777cd98e85aSSteve Longerbeam 1778cd98e85aSSteve Longerbeam ctx = run->ctx; 1779cd98e85aSSteve Longerbeam chan = ctx->chan; 1780cd98e85aSSteve Longerbeam priv = chan->priv; 1781cd98e85aSSteve Longerbeam 1782cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p run %p\n", __func__, 1783cd98e85aSSteve Longerbeam chan->ic_task, ctx, run); 1784cd98e85aSSteve Longerbeam 1785cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&run->list); 1786cd98e85aSSteve Longerbeam 1787cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1788cd98e85aSSteve Longerbeam 1789cd98e85aSSteve Longerbeam if (ctx->aborting) { 1790cd98e85aSSteve Longerbeam ret = -EIO; 1791cd98e85aSSteve Longerbeam goto unlock; 1792cd98e85aSSteve Longerbeam } 1793cd98e85aSSteve Longerbeam 1794cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->pending_q); 1795cd98e85aSSteve Longerbeam 1796cd98e85aSSteve Longerbeam if (!chan->current_run) { 1797cd98e85aSSteve Longerbeam ret = do_run(run); 1798cd98e85aSSteve Longerbeam if (ret) 1799cd98e85aSSteve Longerbeam chan->current_run = NULL; 1800cd98e85aSSteve Longerbeam } 1801cd98e85aSSteve Longerbeam unlock: 1802cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1803cd98e85aSSteve Longerbeam return ret; 1804cd98e85aSSteve Longerbeam } 1805cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_queue); 1806cd98e85aSSteve Longerbeam 1807cd98e85aSSteve Longerbeam /* Abort any active or pending conversions for this context */ 1808819bec35SSteve Longerbeam static void __ipu_image_convert_abort(struct ipu_image_convert_ctx *ctx) 1809cd98e85aSSteve Longerbeam { 1810cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1811cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1812cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run, *active_run, *tmp; 1813cd98e85aSSteve Longerbeam unsigned long flags; 1814cd98e85aSSteve Longerbeam int run_count, ret; 1815cd98e85aSSteve Longerbeam 1816cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1817cd98e85aSSteve Longerbeam 1818cd98e85aSSteve Longerbeam /* move all remaining pending runs in this context to done_q */ 1819cd98e85aSSteve Longerbeam list_for_each_entry_safe(run, tmp, &chan->pending_q, list) { 1820cd98e85aSSteve Longerbeam if (run->ctx != ctx) 1821cd98e85aSSteve Longerbeam continue; 1822cd98e85aSSteve Longerbeam run->status = -EIO; 1823cd98e85aSSteve Longerbeam list_move_tail(&run->list, &chan->done_q); 1824cd98e85aSSteve Longerbeam } 1825cd98e85aSSteve Longerbeam 1826cd98e85aSSteve Longerbeam run_count = get_run_count(ctx, &chan->done_q); 1827cd98e85aSSteve Longerbeam active_run = (chan->current_run && chan->current_run->ctx == ctx) ? 1828cd98e85aSSteve Longerbeam chan->current_run : NULL; 1829cd98e85aSSteve Longerbeam 1830aa60b261SSteve Longerbeam if (active_run) 1831aa60b261SSteve Longerbeam reinit_completion(&ctx->aborted); 1832aa60b261SSteve Longerbeam 1833819bec35SSteve Longerbeam ctx->aborting = true; 1834cd98e85aSSteve Longerbeam 1835cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1836cd98e85aSSteve Longerbeam 1837b288adadSSteve Longerbeam if (!run_count && !active_run) { 1838cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1839cd98e85aSSteve Longerbeam "%s: task %u: no abort needed for ctx %p\n", 1840cd98e85aSSteve Longerbeam __func__, chan->ic_task, ctx); 1841cd98e85aSSteve Longerbeam return; 1842cd98e85aSSteve Longerbeam } 1843cd98e85aSSteve Longerbeam 1844920340aeSSteve Longerbeam if (!active_run) { 1845920340aeSSteve Longerbeam empty_done_q(chan); 1846920340aeSSteve Longerbeam return; 1847920340aeSSteve Longerbeam } 1848920340aeSSteve Longerbeam 1849cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1850920340aeSSteve Longerbeam "%s: task %u: wait for completion: %d runs\n", 1851920340aeSSteve Longerbeam __func__, chan->ic_task, run_count); 1852cd98e85aSSteve Longerbeam 1853cd98e85aSSteve Longerbeam ret = wait_for_completion_timeout(&ctx->aborted, 1854cd98e85aSSteve Longerbeam msecs_to_jiffies(10000)); 1855cd98e85aSSteve Longerbeam if (ret == 0) { 1856cd98e85aSSteve Longerbeam dev_warn(priv->ipu->dev, "%s: timeout\n", __func__); 1857cd98e85aSSteve Longerbeam force_abort(ctx); 1858cd98e85aSSteve Longerbeam } 1859819bec35SSteve Longerbeam } 1860cd98e85aSSteve Longerbeam 1861819bec35SSteve Longerbeam void ipu_image_convert_abort(struct ipu_image_convert_ctx *ctx) 1862819bec35SSteve Longerbeam { 1863819bec35SSteve Longerbeam __ipu_image_convert_abort(ctx); 1864cd98e85aSSteve Longerbeam ctx->aborting = false; 1865cd98e85aSSteve Longerbeam } 1866cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_abort); 1867cd98e85aSSteve Longerbeam 1868cd98e85aSSteve Longerbeam /* Unprepare image conversion context */ 1869cd98e85aSSteve Longerbeam void ipu_image_convert_unprepare(struct ipu_image_convert_ctx *ctx) 1870cd98e85aSSteve Longerbeam { 1871cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1872cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1873cd98e85aSSteve Longerbeam unsigned long flags; 1874cd98e85aSSteve Longerbeam bool put_res; 1875cd98e85aSSteve Longerbeam 1876cd98e85aSSteve Longerbeam /* make sure no runs are hanging around */ 1877819bec35SSteve Longerbeam __ipu_image_convert_abort(ctx); 1878cd98e85aSSteve Longerbeam 1879cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: removing ctx %p\n", __func__, 1880cd98e85aSSteve Longerbeam chan->ic_task, ctx); 1881cd98e85aSSteve Longerbeam 1882cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1883cd98e85aSSteve Longerbeam 1884cd98e85aSSteve Longerbeam list_del(&ctx->list); 1885cd98e85aSSteve Longerbeam 1886cd98e85aSSteve Longerbeam put_res = list_empty(&chan->ctx_list); 1887cd98e85aSSteve Longerbeam 1888cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1889cd98e85aSSteve Longerbeam 1890cd98e85aSSteve Longerbeam if (put_res) 1891cd98e85aSSteve Longerbeam release_ipu_resources(chan); 1892cd98e85aSSteve Longerbeam 1893cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[1]); 1894cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[0]); 1895cd98e85aSSteve Longerbeam 1896cd98e85aSSteve Longerbeam kfree(ctx); 1897cd98e85aSSteve Longerbeam } 1898cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_unprepare); 1899cd98e85aSSteve Longerbeam 1900cd98e85aSSteve Longerbeam /* 1901cd98e85aSSteve Longerbeam * "Canned" asynchronous single image conversion. Allocates and returns 1902cd98e85aSSteve Longerbeam * a new conversion run. On successful return the caller must free the 1903cd98e85aSSteve Longerbeam * run and call ipu_image_convert_unprepare() after conversion completes. 1904cd98e85aSSteve Longerbeam */ 1905cd98e85aSSteve Longerbeam struct ipu_image_convert_run * 1906cd98e85aSSteve Longerbeam ipu_image_convert(struct ipu_soc *ipu, enum ipu_ic_task ic_task, 1907cd98e85aSSteve Longerbeam struct ipu_image *in, struct ipu_image *out, 1908cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode, 1909cd98e85aSSteve Longerbeam ipu_image_convert_cb_t complete, 1910cd98e85aSSteve Longerbeam void *complete_context) 1911cd98e85aSSteve Longerbeam { 1912cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1913cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1914cd98e85aSSteve Longerbeam int ret; 1915cd98e85aSSteve Longerbeam 1916cd98e85aSSteve Longerbeam ctx = ipu_image_convert_prepare(ipu, ic_task, in, out, rot_mode, 1917cd98e85aSSteve Longerbeam complete, complete_context); 1918cd98e85aSSteve Longerbeam if (IS_ERR(ctx)) 19194ad3e92cSWei Yongjun return ERR_CAST(ctx); 1920cd98e85aSSteve Longerbeam 1921cd98e85aSSteve Longerbeam run = kzalloc(sizeof(*run), GFP_KERNEL); 1922cd98e85aSSteve Longerbeam if (!run) { 1923cd98e85aSSteve Longerbeam ipu_image_convert_unprepare(ctx); 1924cd98e85aSSteve Longerbeam return ERR_PTR(-ENOMEM); 1925cd98e85aSSteve Longerbeam } 1926cd98e85aSSteve Longerbeam 1927cd98e85aSSteve Longerbeam run->ctx = ctx; 1928cd98e85aSSteve Longerbeam run->in_phys = in->phys0; 1929cd98e85aSSteve Longerbeam run->out_phys = out->phys0; 1930cd98e85aSSteve Longerbeam 1931cd98e85aSSteve Longerbeam ret = ipu_image_convert_queue(run); 1932cd98e85aSSteve Longerbeam if (ret) { 1933cd98e85aSSteve Longerbeam ipu_image_convert_unprepare(ctx); 1934cd98e85aSSteve Longerbeam kfree(run); 1935cd98e85aSSteve Longerbeam return ERR_PTR(ret); 1936cd98e85aSSteve Longerbeam } 1937cd98e85aSSteve Longerbeam 1938cd98e85aSSteve Longerbeam return run; 1939cd98e85aSSteve Longerbeam } 1940cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert); 1941cd98e85aSSteve Longerbeam 1942cd98e85aSSteve Longerbeam /* "Canned" synchronous single image conversion */ 1943cd98e85aSSteve Longerbeam static void image_convert_sync_complete(struct ipu_image_convert_run *run, 1944cd98e85aSSteve Longerbeam void *data) 1945cd98e85aSSteve Longerbeam { 1946cd98e85aSSteve Longerbeam struct completion *comp = data; 1947cd98e85aSSteve Longerbeam 1948cd98e85aSSteve Longerbeam complete(comp); 1949cd98e85aSSteve Longerbeam } 1950cd98e85aSSteve Longerbeam 1951cd98e85aSSteve Longerbeam int ipu_image_convert_sync(struct ipu_soc *ipu, enum ipu_ic_task ic_task, 1952cd98e85aSSteve Longerbeam struct ipu_image *in, struct ipu_image *out, 1953cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1954cd98e85aSSteve Longerbeam { 1955cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1956cd98e85aSSteve Longerbeam struct completion comp; 1957cd98e85aSSteve Longerbeam int ret; 1958cd98e85aSSteve Longerbeam 1959cd98e85aSSteve Longerbeam init_completion(&comp); 1960cd98e85aSSteve Longerbeam 1961cd98e85aSSteve Longerbeam run = ipu_image_convert(ipu, ic_task, in, out, rot_mode, 1962cd98e85aSSteve Longerbeam image_convert_sync_complete, &comp); 1963cd98e85aSSteve Longerbeam if (IS_ERR(run)) 1964cd98e85aSSteve Longerbeam return PTR_ERR(run); 1965cd98e85aSSteve Longerbeam 1966cd98e85aSSteve Longerbeam ret = wait_for_completion_timeout(&comp, msecs_to_jiffies(10000)); 1967cd98e85aSSteve Longerbeam ret = (ret == 0) ? -ETIMEDOUT : 0; 1968cd98e85aSSteve Longerbeam 1969cd98e85aSSteve Longerbeam ipu_image_convert_unprepare(run->ctx); 1970cd98e85aSSteve Longerbeam kfree(run); 1971cd98e85aSSteve Longerbeam 1972cd98e85aSSteve Longerbeam return ret; 1973cd98e85aSSteve Longerbeam } 1974cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_sync); 1975cd98e85aSSteve Longerbeam 1976cd98e85aSSteve Longerbeam int ipu_image_convert_init(struct ipu_soc *ipu, struct device *dev) 1977cd98e85aSSteve Longerbeam { 1978cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv; 1979cd98e85aSSteve Longerbeam int i; 1980cd98e85aSSteve Longerbeam 1981cd98e85aSSteve Longerbeam priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 1982cd98e85aSSteve Longerbeam if (!priv) 1983cd98e85aSSteve Longerbeam return -ENOMEM; 1984cd98e85aSSteve Longerbeam 1985cd98e85aSSteve Longerbeam ipu->image_convert_priv = priv; 1986cd98e85aSSteve Longerbeam priv->ipu = ipu; 1987cd98e85aSSteve Longerbeam 1988cd98e85aSSteve Longerbeam for (i = 0; i < IC_NUM_TASKS; i++) { 1989cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = &priv->chan[i]; 1990cd98e85aSSteve Longerbeam 1991cd98e85aSSteve Longerbeam chan->ic_task = i; 1992cd98e85aSSteve Longerbeam chan->priv = priv; 1993cd98e85aSSteve Longerbeam chan->dma_ch = &image_convert_dma_chan[i]; 1994cd98e85aSSteve Longerbeam chan->out_eof_irq = -1; 1995cd98e85aSSteve Longerbeam chan->rot_out_eof_irq = -1; 1996cd98e85aSSteve Longerbeam 1997cd98e85aSSteve Longerbeam spin_lock_init(&chan->irqlock); 1998cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&chan->ctx_list); 1999cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&chan->pending_q); 2000cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&chan->done_q); 2001cd98e85aSSteve Longerbeam } 2002cd98e85aSSteve Longerbeam 2003cd98e85aSSteve Longerbeam return 0; 2004cd98e85aSSteve Longerbeam } 2005cd98e85aSSteve Longerbeam 2006cd98e85aSSteve Longerbeam void ipu_image_convert_exit(struct ipu_soc *ipu) 2007cd98e85aSSteve Longerbeam { 2008cd98e85aSSteve Longerbeam } 2009