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; 87cd98e85aSSteve Longerbeam /* size and strides are in bytes */ 88cd98e85aSSteve Longerbeam u32 size; 89cd98e85aSSteve Longerbeam u32 stride; 90cd98e85aSSteve Longerbeam u32 rot_stride; 91cd98e85aSSteve Longerbeam /* start Y or packed offset of this tile */ 92cd98e85aSSteve Longerbeam u32 offset; 93cd98e85aSSteve Longerbeam /* offset from start to tile in U plane, for planar formats */ 94cd98e85aSSteve Longerbeam u32 u_off; 95cd98e85aSSteve Longerbeam /* offset from start to tile in V plane, for planar formats */ 96cd98e85aSSteve Longerbeam u32 v_off; 97cd98e85aSSteve Longerbeam }; 98cd98e85aSSteve Longerbeam 99cd98e85aSSteve Longerbeam struct ipu_image_convert_image { 100cd98e85aSSteve Longerbeam struct ipu_image base; 101cd98e85aSSteve Longerbeam enum ipu_image_convert_type type; 102cd98e85aSSteve Longerbeam 103cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt; 104cd98e85aSSteve Longerbeam unsigned int stride; 105cd98e85aSSteve Longerbeam 106cd98e85aSSteve Longerbeam /* # of rows (horizontal stripes) if dest height is > 1024 */ 107cd98e85aSSteve Longerbeam unsigned int num_rows; 108cd98e85aSSteve Longerbeam /* # of columns (vertical stripes) if dest width is > 1024 */ 109cd98e85aSSteve Longerbeam unsigned int num_cols; 110cd98e85aSSteve Longerbeam 111cd98e85aSSteve Longerbeam struct ipu_image_tile tile[MAX_TILES]; 112cd98e85aSSteve Longerbeam }; 113cd98e85aSSteve Longerbeam 114cd98e85aSSteve Longerbeam struct ipu_image_pixfmt { 115cd98e85aSSteve Longerbeam u32 fourcc; /* V4L2 fourcc */ 116cd98e85aSSteve Longerbeam int bpp; /* total bpp */ 117cd98e85aSSteve Longerbeam int uv_width_dec; /* decimation in width for U/V planes */ 118cd98e85aSSteve Longerbeam int uv_height_dec; /* decimation in height for U/V planes */ 119cd98e85aSSteve Longerbeam bool planar; /* planar format */ 120cd98e85aSSteve Longerbeam bool uv_swapped; /* U and V planes are swapped */ 121cd98e85aSSteve Longerbeam bool uv_packed; /* partial planar (U and V in same plane) */ 122cd98e85aSSteve Longerbeam }; 123cd98e85aSSteve Longerbeam 124cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx; 125cd98e85aSSteve Longerbeam struct ipu_image_convert_chan; 126cd98e85aSSteve Longerbeam struct ipu_image_convert_priv; 127cd98e85aSSteve Longerbeam 128cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx { 129cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan; 130cd98e85aSSteve Longerbeam 131cd98e85aSSteve Longerbeam ipu_image_convert_cb_t complete; 132cd98e85aSSteve Longerbeam void *complete_context; 133cd98e85aSSteve Longerbeam 134cd98e85aSSteve Longerbeam /* Source/destination image data and rotation mode */ 135cd98e85aSSteve Longerbeam struct ipu_image_convert_image in; 136cd98e85aSSteve Longerbeam struct ipu_image_convert_image out; 137cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode; 13870b9b6b3SPhilipp Zabel u32 downsize_coeff_h; 13970b9b6b3SPhilipp Zabel u32 downsize_coeff_v; 14070b9b6b3SPhilipp Zabel u32 image_resize_coeff_h; 14170b9b6b3SPhilipp Zabel u32 image_resize_coeff_v; 14270b9b6b3SPhilipp Zabel u32 resize_coeffs_h[MAX_STRIPES_W]; 14370b9b6b3SPhilipp Zabel u32 resize_coeffs_v[MAX_STRIPES_H]; 144cd98e85aSSteve Longerbeam 145cd98e85aSSteve Longerbeam /* intermediate buffer for rotation */ 146cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf rot_intermediate[2]; 147cd98e85aSSteve Longerbeam 148cd98e85aSSteve Longerbeam /* current buffer number for double buffering */ 149cd98e85aSSteve Longerbeam int cur_buf_num; 150cd98e85aSSteve Longerbeam 151cd98e85aSSteve Longerbeam bool aborting; 152cd98e85aSSteve Longerbeam struct completion aborted; 153cd98e85aSSteve Longerbeam 154cd98e85aSSteve Longerbeam /* can we use double-buffering for this conversion operation? */ 155cd98e85aSSteve Longerbeam bool double_buffering; 156cd98e85aSSteve Longerbeam /* num_rows * num_cols */ 157cd98e85aSSteve Longerbeam unsigned int num_tiles; 158cd98e85aSSteve Longerbeam /* next tile to process */ 159cd98e85aSSteve Longerbeam unsigned int next_tile; 160cd98e85aSSteve Longerbeam /* where to place converted tile in dest image */ 161cd98e85aSSteve Longerbeam unsigned int out_tile_map[MAX_TILES]; 162cd98e85aSSteve Longerbeam 163cd98e85aSSteve Longerbeam struct list_head list; 164cd98e85aSSteve Longerbeam }; 165cd98e85aSSteve Longerbeam 166cd98e85aSSteve Longerbeam struct ipu_image_convert_chan { 167cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv; 168cd98e85aSSteve Longerbeam 169cd98e85aSSteve Longerbeam enum ipu_ic_task ic_task; 170cd98e85aSSteve Longerbeam const struct ipu_image_convert_dma_chan *dma_ch; 171cd98e85aSSteve Longerbeam 172cd98e85aSSteve Longerbeam struct ipu_ic *ic; 173cd98e85aSSteve Longerbeam struct ipuv3_channel *in_chan; 174cd98e85aSSteve Longerbeam struct ipuv3_channel *out_chan; 175cd98e85aSSteve Longerbeam struct ipuv3_channel *rotation_in_chan; 176cd98e85aSSteve Longerbeam struct ipuv3_channel *rotation_out_chan; 177cd98e85aSSteve Longerbeam 178cd98e85aSSteve Longerbeam /* the IPU end-of-frame irqs */ 179cd98e85aSSteve Longerbeam int out_eof_irq; 180cd98e85aSSteve Longerbeam int rot_out_eof_irq; 181cd98e85aSSteve Longerbeam 182cd98e85aSSteve Longerbeam spinlock_t irqlock; 183cd98e85aSSteve Longerbeam 184cd98e85aSSteve Longerbeam /* list of convert contexts */ 185cd98e85aSSteve Longerbeam struct list_head ctx_list; 186cd98e85aSSteve Longerbeam /* queue of conversion runs */ 187cd98e85aSSteve Longerbeam struct list_head pending_q; 188cd98e85aSSteve Longerbeam /* queue of completed runs */ 189cd98e85aSSteve Longerbeam struct list_head done_q; 190cd98e85aSSteve Longerbeam 191cd98e85aSSteve Longerbeam /* the current conversion run */ 192cd98e85aSSteve Longerbeam struct ipu_image_convert_run *current_run; 193cd98e85aSSteve Longerbeam }; 194cd98e85aSSteve Longerbeam 195cd98e85aSSteve Longerbeam struct ipu_image_convert_priv { 196cd98e85aSSteve Longerbeam struct ipu_image_convert_chan chan[IC_NUM_TASKS]; 197cd98e85aSSteve Longerbeam struct ipu_soc *ipu; 198cd98e85aSSteve Longerbeam }; 199cd98e85aSSteve Longerbeam 200cd98e85aSSteve Longerbeam static const struct ipu_image_convert_dma_chan 201cd98e85aSSteve Longerbeam image_convert_dma_chan[IC_NUM_TASKS] = { 202cd98e85aSSteve Longerbeam [IC_TASK_VIEWFINDER] = { 203cd98e85aSSteve Longerbeam .in = IPUV3_CHANNEL_MEM_IC_PRP_VF, 204cd98e85aSSteve Longerbeam .out = IPUV3_CHANNEL_IC_PRP_VF_MEM, 205cd98e85aSSteve Longerbeam .rot_in = IPUV3_CHANNEL_MEM_ROT_VF, 206cd98e85aSSteve Longerbeam .rot_out = IPUV3_CHANNEL_ROT_VF_MEM, 207cd98e85aSSteve Longerbeam .vdi_in_p = IPUV3_CHANNEL_MEM_VDI_PREV, 208cd98e85aSSteve Longerbeam .vdi_in = IPUV3_CHANNEL_MEM_VDI_CUR, 209cd98e85aSSteve Longerbeam .vdi_in_n = IPUV3_CHANNEL_MEM_VDI_NEXT, 210cd98e85aSSteve Longerbeam }, 211cd98e85aSSteve Longerbeam [IC_TASK_POST_PROCESSOR] = { 212cd98e85aSSteve Longerbeam .in = IPUV3_CHANNEL_MEM_IC_PP, 213cd98e85aSSteve Longerbeam .out = IPUV3_CHANNEL_IC_PP_MEM, 214cd98e85aSSteve Longerbeam .rot_in = IPUV3_CHANNEL_MEM_ROT_PP, 215cd98e85aSSteve Longerbeam .rot_out = IPUV3_CHANNEL_ROT_PP_MEM, 216cd98e85aSSteve Longerbeam }, 217cd98e85aSSteve Longerbeam }; 218cd98e85aSSteve Longerbeam 219cd98e85aSSteve Longerbeam static const struct ipu_image_pixfmt image_convert_formats[] = { 220cd98e85aSSteve Longerbeam { 221cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_RGB565, 222cd98e85aSSteve Longerbeam .bpp = 16, 223cd98e85aSSteve Longerbeam }, { 224cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_RGB24, 225cd98e85aSSteve Longerbeam .bpp = 24, 226cd98e85aSSteve Longerbeam }, { 227cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_BGR24, 228cd98e85aSSteve Longerbeam .bpp = 24, 229cd98e85aSSteve Longerbeam }, { 230cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_RGB32, 231cd98e85aSSteve Longerbeam .bpp = 32, 232cd98e85aSSteve Longerbeam }, { 233cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_BGR32, 234cd98e85aSSteve Longerbeam .bpp = 32, 235cd98e85aSSteve Longerbeam }, { 2365c41bb60SPhilipp Zabel .fourcc = V4L2_PIX_FMT_XRGB32, 2375c41bb60SPhilipp Zabel .bpp = 32, 2385c41bb60SPhilipp Zabel }, { 2395c41bb60SPhilipp Zabel .fourcc = V4L2_PIX_FMT_XBGR32, 2405c41bb60SPhilipp Zabel .bpp = 32, 2415c41bb60SPhilipp Zabel }, { 242cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YUYV, 243cd98e85aSSteve Longerbeam .bpp = 16, 244cd98e85aSSteve Longerbeam .uv_width_dec = 2, 245cd98e85aSSteve Longerbeam .uv_height_dec = 1, 246cd98e85aSSteve Longerbeam }, { 247cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_UYVY, 248cd98e85aSSteve Longerbeam .bpp = 16, 249cd98e85aSSteve Longerbeam .uv_width_dec = 2, 250cd98e85aSSteve Longerbeam .uv_height_dec = 1, 251cd98e85aSSteve Longerbeam }, { 252cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YUV420, 253cd98e85aSSteve Longerbeam .bpp = 12, 254cd98e85aSSteve Longerbeam .planar = true, 255cd98e85aSSteve Longerbeam .uv_width_dec = 2, 256cd98e85aSSteve Longerbeam .uv_height_dec = 2, 257cd98e85aSSteve Longerbeam }, { 258cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YVU420, 259cd98e85aSSteve Longerbeam .bpp = 12, 260cd98e85aSSteve Longerbeam .planar = true, 261cd98e85aSSteve Longerbeam .uv_width_dec = 2, 262cd98e85aSSteve Longerbeam .uv_height_dec = 2, 263cd98e85aSSteve Longerbeam .uv_swapped = true, 264cd98e85aSSteve Longerbeam }, { 265cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_NV12, 266cd98e85aSSteve Longerbeam .bpp = 12, 267cd98e85aSSteve Longerbeam .planar = true, 268cd98e85aSSteve Longerbeam .uv_width_dec = 2, 269cd98e85aSSteve Longerbeam .uv_height_dec = 2, 270cd98e85aSSteve Longerbeam .uv_packed = true, 271cd98e85aSSteve Longerbeam }, { 272cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_YUV422P, 273cd98e85aSSteve Longerbeam .bpp = 16, 274cd98e85aSSteve Longerbeam .planar = true, 275cd98e85aSSteve Longerbeam .uv_width_dec = 2, 276cd98e85aSSteve Longerbeam .uv_height_dec = 1, 277cd98e85aSSteve Longerbeam }, { 278cd98e85aSSteve Longerbeam .fourcc = V4L2_PIX_FMT_NV16, 279cd98e85aSSteve Longerbeam .bpp = 16, 280cd98e85aSSteve Longerbeam .planar = true, 281cd98e85aSSteve Longerbeam .uv_width_dec = 2, 282cd98e85aSSteve Longerbeam .uv_height_dec = 1, 283cd98e85aSSteve Longerbeam .uv_packed = true, 284cd98e85aSSteve Longerbeam }, 285cd98e85aSSteve Longerbeam }; 286cd98e85aSSteve Longerbeam 287cd98e85aSSteve Longerbeam static const struct ipu_image_pixfmt *get_format(u32 fourcc) 288cd98e85aSSteve Longerbeam { 289cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *ret = NULL; 290cd98e85aSSteve Longerbeam unsigned int i; 291cd98e85aSSteve Longerbeam 292cd98e85aSSteve Longerbeam for (i = 0; i < ARRAY_SIZE(image_convert_formats); i++) { 293cd98e85aSSteve Longerbeam if (image_convert_formats[i].fourcc == fourcc) { 294cd98e85aSSteve Longerbeam ret = &image_convert_formats[i]; 295cd98e85aSSteve Longerbeam break; 296cd98e85aSSteve Longerbeam } 297cd98e85aSSteve Longerbeam } 298cd98e85aSSteve Longerbeam 299cd98e85aSSteve Longerbeam return ret; 300cd98e85aSSteve Longerbeam } 301cd98e85aSSteve Longerbeam 302cd98e85aSSteve Longerbeam static void dump_format(struct ipu_image_convert_ctx *ctx, 303cd98e85aSSteve Longerbeam struct ipu_image_convert_image *ic_image) 304cd98e85aSSteve Longerbeam { 305cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 306cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 307cd98e85aSSteve Longerbeam 308cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 309cd98e85aSSteve Longerbeam "task %u: ctx %p: %s format: %dx%d (%dx%d tiles of size %dx%d), %c%c%c%c\n", 310cd98e85aSSteve Longerbeam chan->ic_task, ctx, 311cd98e85aSSteve Longerbeam ic_image->type == IMAGE_CONVERT_OUT ? "Output" : "Input", 312cd98e85aSSteve Longerbeam ic_image->base.pix.width, ic_image->base.pix.height, 313cd98e85aSSteve Longerbeam ic_image->num_cols, ic_image->num_rows, 314cd98e85aSSteve Longerbeam ic_image->tile[0].width, ic_image->tile[0].height, 315cd98e85aSSteve Longerbeam ic_image->fmt->fourcc & 0xff, 316cd98e85aSSteve Longerbeam (ic_image->fmt->fourcc >> 8) & 0xff, 317cd98e85aSSteve Longerbeam (ic_image->fmt->fourcc >> 16) & 0xff, 318cd98e85aSSteve Longerbeam (ic_image->fmt->fourcc >> 24) & 0xff); 319cd98e85aSSteve Longerbeam } 320cd98e85aSSteve Longerbeam 321cd98e85aSSteve Longerbeam int ipu_image_convert_enum_format(int index, u32 *fourcc) 322cd98e85aSSteve Longerbeam { 323cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt; 324cd98e85aSSteve Longerbeam 325cd98e85aSSteve Longerbeam if (index >= (int)ARRAY_SIZE(image_convert_formats)) 326cd98e85aSSteve Longerbeam return -EINVAL; 327cd98e85aSSteve Longerbeam 328cd98e85aSSteve Longerbeam /* Format found */ 329cd98e85aSSteve Longerbeam fmt = &image_convert_formats[index]; 330cd98e85aSSteve Longerbeam *fourcc = fmt->fourcc; 331cd98e85aSSteve Longerbeam return 0; 332cd98e85aSSteve Longerbeam } 333cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_enum_format); 334cd98e85aSSteve Longerbeam 335cd98e85aSSteve Longerbeam static void free_dma_buf(struct ipu_image_convert_priv *priv, 336cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf *buf) 337cd98e85aSSteve Longerbeam { 338cd98e85aSSteve Longerbeam if (buf->virt) 339cd98e85aSSteve Longerbeam dma_free_coherent(priv->ipu->dev, 340cd98e85aSSteve Longerbeam buf->len, buf->virt, buf->phys); 341cd98e85aSSteve Longerbeam buf->virt = NULL; 342cd98e85aSSteve Longerbeam buf->phys = 0; 343cd98e85aSSteve Longerbeam } 344cd98e85aSSteve Longerbeam 345cd98e85aSSteve Longerbeam static int alloc_dma_buf(struct ipu_image_convert_priv *priv, 346cd98e85aSSteve Longerbeam struct ipu_image_convert_dma_buf *buf, 347cd98e85aSSteve Longerbeam int size) 348cd98e85aSSteve Longerbeam { 349cd98e85aSSteve Longerbeam buf->len = PAGE_ALIGN(size); 350cd98e85aSSteve Longerbeam buf->virt = dma_alloc_coherent(priv->ipu->dev, buf->len, &buf->phys, 351cd98e85aSSteve Longerbeam GFP_DMA | GFP_KERNEL); 352cd98e85aSSteve Longerbeam if (!buf->virt) { 353cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "failed to alloc dma buffer\n"); 354cd98e85aSSteve Longerbeam return -ENOMEM; 355cd98e85aSSteve Longerbeam } 356cd98e85aSSteve Longerbeam 357cd98e85aSSteve Longerbeam return 0; 358cd98e85aSSteve Longerbeam } 359cd98e85aSSteve Longerbeam 360cd98e85aSSteve Longerbeam static inline int num_stripes(int dim) 361cd98e85aSSteve Longerbeam { 362cd98e85aSSteve Longerbeam if (dim <= 1024) 363cd98e85aSSteve Longerbeam return 1; 364cd98e85aSSteve Longerbeam else if (dim <= 2048) 365cd98e85aSSteve Longerbeam return 2; 366cd98e85aSSteve Longerbeam else 367cd98e85aSSteve Longerbeam return 4; 368cd98e85aSSteve Longerbeam } 369cd98e85aSSteve Longerbeam 37070b9b6b3SPhilipp Zabel /* 37170b9b6b3SPhilipp Zabel * Calculate downsizing coefficients, which are the same for all tiles, 37270b9b6b3SPhilipp Zabel * and bilinear resizing coefficients, which are used to find the best 37370b9b6b3SPhilipp Zabel * seam positions. 37470b9b6b3SPhilipp Zabel */ 37570b9b6b3SPhilipp Zabel static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx, 37670b9b6b3SPhilipp Zabel struct ipu_image *in, 37770b9b6b3SPhilipp Zabel struct ipu_image *out) 37870b9b6b3SPhilipp Zabel { 37970b9b6b3SPhilipp Zabel u32 downsized_width = in->rect.width; 38070b9b6b3SPhilipp Zabel u32 downsized_height = in->rect.height; 38170b9b6b3SPhilipp Zabel u32 downsize_coeff_v = 0; 38270b9b6b3SPhilipp Zabel u32 downsize_coeff_h = 0; 38370b9b6b3SPhilipp Zabel u32 resized_width = out->rect.width; 38470b9b6b3SPhilipp Zabel u32 resized_height = out->rect.height; 38570b9b6b3SPhilipp Zabel u32 resize_coeff_h; 38670b9b6b3SPhilipp Zabel u32 resize_coeff_v; 38770b9b6b3SPhilipp Zabel 38870b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 38970b9b6b3SPhilipp Zabel resized_width = out->rect.height; 39070b9b6b3SPhilipp Zabel resized_height = out->rect.width; 39170b9b6b3SPhilipp Zabel } 39270b9b6b3SPhilipp Zabel 39370b9b6b3SPhilipp Zabel /* Do not let invalid input lead to an endless loop below */ 39470b9b6b3SPhilipp Zabel if (WARN_ON(resized_width == 0 || resized_height == 0)) 39570b9b6b3SPhilipp Zabel return -EINVAL; 39670b9b6b3SPhilipp Zabel 39770b9b6b3SPhilipp Zabel while (downsized_width >= resized_width * 2) { 39870b9b6b3SPhilipp Zabel downsized_width >>= 1; 39970b9b6b3SPhilipp Zabel downsize_coeff_h++; 40070b9b6b3SPhilipp Zabel } 40170b9b6b3SPhilipp Zabel 40270b9b6b3SPhilipp Zabel while (downsized_height >= resized_height * 2) { 40370b9b6b3SPhilipp Zabel downsized_height >>= 1; 40470b9b6b3SPhilipp Zabel downsize_coeff_v++; 40570b9b6b3SPhilipp Zabel } 40670b9b6b3SPhilipp Zabel 40770b9b6b3SPhilipp Zabel /* 40870b9b6b3SPhilipp Zabel * Calculate the bilinear resizing coefficients that could be used if 40970b9b6b3SPhilipp Zabel * we were converting with a single tile. The bottom right output pixel 41070b9b6b3SPhilipp Zabel * should sample as close as possible to the bottom right input pixel 41170b9b6b3SPhilipp Zabel * out of the decimator, but not overshoot it: 41270b9b6b3SPhilipp Zabel */ 41370b9b6b3SPhilipp Zabel resize_coeff_h = 8192 * (downsized_width - 1) / (resized_width - 1); 41470b9b6b3SPhilipp Zabel resize_coeff_v = 8192 * (downsized_height - 1) / (resized_height - 1); 41570b9b6b3SPhilipp Zabel 41670b9b6b3SPhilipp Zabel dev_dbg(ctx->chan->priv->ipu->dev, 41770b9b6b3SPhilipp Zabel "%s: hscale: >>%u, *8192/%u vscale: >>%u, *8192/%u, %ux%u tiles\n", 41870b9b6b3SPhilipp Zabel __func__, downsize_coeff_h, resize_coeff_h, downsize_coeff_v, 41970b9b6b3SPhilipp Zabel resize_coeff_v, ctx->in.num_cols, ctx->in.num_rows); 42070b9b6b3SPhilipp Zabel 42170b9b6b3SPhilipp Zabel if (downsize_coeff_h > 2 || downsize_coeff_v > 2 || 42270b9b6b3SPhilipp Zabel resize_coeff_h > 0x3fff || resize_coeff_v > 0x3fff) 42370b9b6b3SPhilipp Zabel return -EINVAL; 42470b9b6b3SPhilipp Zabel 42570b9b6b3SPhilipp Zabel ctx->downsize_coeff_h = downsize_coeff_h; 42670b9b6b3SPhilipp Zabel ctx->downsize_coeff_v = downsize_coeff_v; 42770b9b6b3SPhilipp Zabel ctx->image_resize_coeff_h = resize_coeff_h; 42870b9b6b3SPhilipp Zabel ctx->image_resize_coeff_v = resize_coeff_v; 42970b9b6b3SPhilipp Zabel 43070b9b6b3SPhilipp Zabel return 0; 43170b9b6b3SPhilipp Zabel } 43270b9b6b3SPhilipp Zabel 433cd98e85aSSteve Longerbeam static void calc_tile_dimensions(struct ipu_image_convert_ctx *ctx, 434cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 435cd98e85aSSteve Longerbeam { 436cd98e85aSSteve Longerbeam int i; 437cd98e85aSSteve Longerbeam 438cd98e85aSSteve Longerbeam for (i = 0; i < ctx->num_tiles; i++) { 439cd98e85aSSteve Longerbeam struct ipu_image_tile *tile = &image->tile[i]; 440cd98e85aSSteve Longerbeam 441cd98e85aSSteve Longerbeam tile->height = image->base.pix.height / image->num_rows; 442cd98e85aSSteve Longerbeam tile->width = image->base.pix.width / image->num_cols; 443cd98e85aSSteve Longerbeam tile->size = ((tile->height * image->fmt->bpp) >> 3) * 444cd98e85aSSteve Longerbeam tile->width; 445cd98e85aSSteve Longerbeam 446cd98e85aSSteve Longerbeam if (image->fmt->planar) { 447cd98e85aSSteve Longerbeam tile->stride = tile->width; 448cd98e85aSSteve Longerbeam tile->rot_stride = tile->height; 449cd98e85aSSteve Longerbeam } else { 450cd98e85aSSteve Longerbeam tile->stride = 451cd98e85aSSteve Longerbeam (image->fmt->bpp * tile->width) >> 3; 452cd98e85aSSteve Longerbeam tile->rot_stride = 453cd98e85aSSteve Longerbeam (image->fmt->bpp * tile->height) >> 3; 454cd98e85aSSteve Longerbeam } 455cd98e85aSSteve Longerbeam } 456cd98e85aSSteve Longerbeam } 457cd98e85aSSteve Longerbeam 458cd98e85aSSteve Longerbeam /* 459cd98e85aSSteve Longerbeam * Use the rotation transformation to find the tile coordinates 460cd98e85aSSteve Longerbeam * (row, col) of a tile in the destination frame that corresponds 461cd98e85aSSteve Longerbeam * to the given tile coordinates of a source frame. The destination 462cd98e85aSSteve Longerbeam * coordinate is then converted to a tile index. 463cd98e85aSSteve Longerbeam */ 464cd98e85aSSteve Longerbeam static int transform_tile_index(struct ipu_image_convert_ctx *ctx, 465cd98e85aSSteve Longerbeam int src_row, int src_col) 466cd98e85aSSteve Longerbeam { 467cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 468cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 469cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 470cd98e85aSSteve Longerbeam struct ipu_image_convert_image *d_image = &ctx->out; 471cd98e85aSSteve Longerbeam int dst_row, dst_col; 472cd98e85aSSteve Longerbeam 473cd98e85aSSteve Longerbeam /* with no rotation it's a 1:1 mapping */ 474cd98e85aSSteve Longerbeam if (ctx->rot_mode == IPU_ROTATE_NONE) 475cd98e85aSSteve Longerbeam return src_row * s_image->num_cols + src_col; 476cd98e85aSSteve Longerbeam 477cd98e85aSSteve Longerbeam /* 478cd98e85aSSteve Longerbeam * before doing the transform, first we have to translate 479cd98e85aSSteve Longerbeam * source row,col for an origin in the center of s_image 480cd98e85aSSteve Longerbeam */ 481cd98e85aSSteve Longerbeam src_row = src_row * 2 - (s_image->num_rows - 1); 482cd98e85aSSteve Longerbeam src_col = src_col * 2 - (s_image->num_cols - 1); 483cd98e85aSSteve Longerbeam 484cd98e85aSSteve Longerbeam /* do the rotation transform */ 485cd98e85aSSteve Longerbeam if (ctx->rot_mode & IPU_ROT_BIT_90) { 486cd98e85aSSteve Longerbeam dst_col = -src_row; 487cd98e85aSSteve Longerbeam dst_row = src_col; 488cd98e85aSSteve Longerbeam } else { 489cd98e85aSSteve Longerbeam dst_col = src_col; 490cd98e85aSSteve Longerbeam dst_row = src_row; 491cd98e85aSSteve Longerbeam } 492cd98e85aSSteve Longerbeam 493cd98e85aSSteve Longerbeam /* apply flip */ 494cd98e85aSSteve Longerbeam if (ctx->rot_mode & IPU_ROT_BIT_HFLIP) 495cd98e85aSSteve Longerbeam dst_col = -dst_col; 496cd98e85aSSteve Longerbeam if (ctx->rot_mode & IPU_ROT_BIT_VFLIP) 497cd98e85aSSteve Longerbeam dst_row = -dst_row; 498cd98e85aSSteve Longerbeam 499cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "task %u: ctx %p: [%d,%d] --> [%d,%d]\n", 500cd98e85aSSteve Longerbeam chan->ic_task, ctx, src_col, src_row, dst_col, dst_row); 501cd98e85aSSteve Longerbeam 502cd98e85aSSteve Longerbeam /* 503cd98e85aSSteve Longerbeam * finally translate dest row,col using an origin in upper 504cd98e85aSSteve Longerbeam * left of d_image 505cd98e85aSSteve Longerbeam */ 506cd98e85aSSteve Longerbeam dst_row += d_image->num_rows - 1; 507cd98e85aSSteve Longerbeam dst_col += d_image->num_cols - 1; 508cd98e85aSSteve Longerbeam dst_row /= 2; 509cd98e85aSSteve Longerbeam dst_col /= 2; 510cd98e85aSSteve Longerbeam 511cd98e85aSSteve Longerbeam return dst_row * d_image->num_cols + dst_col; 512cd98e85aSSteve Longerbeam } 513cd98e85aSSteve Longerbeam 514cd98e85aSSteve Longerbeam /* 515cd98e85aSSteve Longerbeam * Fill the out_tile_map[] with transformed destination tile indeces. 516cd98e85aSSteve Longerbeam */ 517cd98e85aSSteve Longerbeam static void calc_out_tile_map(struct ipu_image_convert_ctx *ctx) 518cd98e85aSSteve Longerbeam { 519cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 520cd98e85aSSteve Longerbeam unsigned int row, col, tile = 0; 521cd98e85aSSteve Longerbeam 522cd98e85aSSteve Longerbeam for (row = 0; row < s_image->num_rows; row++) { 523cd98e85aSSteve Longerbeam for (col = 0; col < s_image->num_cols; col++) { 524cd98e85aSSteve Longerbeam ctx->out_tile_map[tile] = 525cd98e85aSSteve Longerbeam transform_tile_index(ctx, row, col); 526cd98e85aSSteve Longerbeam tile++; 527cd98e85aSSteve Longerbeam } 528cd98e85aSSteve Longerbeam } 529cd98e85aSSteve Longerbeam } 530cd98e85aSSteve Longerbeam 531c4e45658SSteve Longerbeam static int calc_tile_offsets_planar(struct ipu_image_convert_ctx *ctx, 532cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 533cd98e85aSSteve Longerbeam { 534cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 535cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 536cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt = image->fmt; 537cd98e85aSSteve Longerbeam unsigned int row, col, tile = 0; 538cd98e85aSSteve Longerbeam u32 H, w, h, y_stride, uv_stride; 539cd98e85aSSteve Longerbeam u32 uv_row_off, uv_col_off, uv_off, u_off, v_off, tmp; 540cd98e85aSSteve Longerbeam u32 y_row_off, y_col_off, y_off; 541cd98e85aSSteve Longerbeam u32 y_size, uv_size; 542cd98e85aSSteve Longerbeam 543cd98e85aSSteve Longerbeam /* setup some convenience vars */ 544cd98e85aSSteve Longerbeam H = image->base.pix.height; 545cd98e85aSSteve Longerbeam 546cd98e85aSSteve Longerbeam y_stride = image->stride; 547cd98e85aSSteve Longerbeam uv_stride = y_stride / fmt->uv_width_dec; 548cd98e85aSSteve Longerbeam if (fmt->uv_packed) 549cd98e85aSSteve Longerbeam uv_stride *= 2; 550cd98e85aSSteve Longerbeam 551cd98e85aSSteve Longerbeam y_size = H * y_stride; 552cd98e85aSSteve Longerbeam uv_size = y_size / (fmt->uv_width_dec * fmt->uv_height_dec); 553cd98e85aSSteve Longerbeam 554cd98e85aSSteve Longerbeam for (row = 0; row < image->num_rows; row++) { 555cd98e85aSSteve Longerbeam w = image->tile[tile].width; 556cd98e85aSSteve Longerbeam h = image->tile[tile].height; 557cd98e85aSSteve Longerbeam y_row_off = row * h * y_stride; 558cd98e85aSSteve Longerbeam uv_row_off = (row * h * uv_stride) / fmt->uv_height_dec; 559cd98e85aSSteve Longerbeam 560cd98e85aSSteve Longerbeam for (col = 0; col < image->num_cols; col++) { 561cd98e85aSSteve Longerbeam y_col_off = col * w; 562cd98e85aSSteve Longerbeam uv_col_off = y_col_off / fmt->uv_width_dec; 563cd98e85aSSteve Longerbeam if (fmt->uv_packed) 564cd98e85aSSteve Longerbeam uv_col_off *= 2; 565cd98e85aSSteve Longerbeam 566cd98e85aSSteve Longerbeam y_off = y_row_off + y_col_off; 567cd98e85aSSteve Longerbeam uv_off = uv_row_off + uv_col_off; 568cd98e85aSSteve Longerbeam 569cd98e85aSSteve Longerbeam u_off = y_size - y_off + uv_off; 570cd98e85aSSteve Longerbeam v_off = (fmt->uv_packed) ? 0 : u_off + uv_size; 571cd98e85aSSteve Longerbeam if (fmt->uv_swapped) { 572cd98e85aSSteve Longerbeam tmp = u_off; 573cd98e85aSSteve Longerbeam u_off = v_off; 574cd98e85aSSteve Longerbeam v_off = tmp; 575cd98e85aSSteve Longerbeam } 576cd98e85aSSteve Longerbeam 577cd98e85aSSteve Longerbeam image->tile[tile].offset = y_off; 578cd98e85aSSteve Longerbeam image->tile[tile].u_off = u_off; 579cd98e85aSSteve Longerbeam image->tile[tile++].v_off = v_off; 580cd98e85aSSteve Longerbeam 581c4e45658SSteve Longerbeam if ((y_off & 0x7) || (u_off & 0x7) || (v_off & 0x7)) { 582c4e45658SSteve Longerbeam dev_err(priv->ipu->dev, 583c4e45658SSteve Longerbeam "task %u: ctx %p: %s@[%d,%d]: " 584c4e45658SSteve Longerbeam "y_off %08x, u_off %08x, v_off %08x\n", 585cd98e85aSSteve Longerbeam chan->ic_task, ctx, 586cd98e85aSSteve Longerbeam image->type == IMAGE_CONVERT_IN ? 587cd98e85aSSteve Longerbeam "Input" : "Output", row, col, 588cd98e85aSSteve Longerbeam y_off, u_off, v_off); 589c4e45658SSteve Longerbeam return -EINVAL; 590cd98e85aSSteve Longerbeam } 591cd98e85aSSteve Longerbeam } 592cd98e85aSSteve Longerbeam } 593cd98e85aSSteve Longerbeam 594c4e45658SSteve Longerbeam return 0; 595c4e45658SSteve Longerbeam } 596c4e45658SSteve Longerbeam 597c4e45658SSteve Longerbeam static int calc_tile_offsets_packed(struct ipu_image_convert_ctx *ctx, 598cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 599cd98e85aSSteve Longerbeam { 600cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 601cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 602cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *fmt = image->fmt; 603cd98e85aSSteve Longerbeam unsigned int row, col, tile = 0; 604c4e45658SSteve Longerbeam u32 w, h, bpp, stride, offset; 605cd98e85aSSteve Longerbeam u32 row_off, col_off; 606cd98e85aSSteve Longerbeam 607cd98e85aSSteve Longerbeam /* setup some convenience vars */ 608cd98e85aSSteve Longerbeam stride = image->stride; 609cd98e85aSSteve Longerbeam bpp = fmt->bpp; 610cd98e85aSSteve Longerbeam 611cd98e85aSSteve Longerbeam for (row = 0; row < image->num_rows; row++) { 612cd98e85aSSteve Longerbeam w = image->tile[tile].width; 613cd98e85aSSteve Longerbeam h = image->tile[tile].height; 614cd98e85aSSteve Longerbeam row_off = row * h * stride; 615cd98e85aSSteve Longerbeam 616cd98e85aSSteve Longerbeam for (col = 0; col < image->num_cols; col++) { 617cd98e85aSSteve Longerbeam col_off = (col * w * bpp) >> 3; 618cd98e85aSSteve Longerbeam 619c4e45658SSteve Longerbeam offset = row_off + col_off; 620c4e45658SSteve Longerbeam 621c4e45658SSteve Longerbeam image->tile[tile].offset = offset; 622cd98e85aSSteve Longerbeam image->tile[tile].u_off = 0; 623cd98e85aSSteve Longerbeam image->tile[tile++].v_off = 0; 624cd98e85aSSteve Longerbeam 625c4e45658SSteve Longerbeam if (offset & 0x7) { 626c4e45658SSteve Longerbeam dev_err(priv->ipu->dev, 627c4e45658SSteve Longerbeam "task %u: ctx %p: %s@[%d,%d]: " 628c4e45658SSteve Longerbeam "phys %08x\n", 629cd98e85aSSteve Longerbeam chan->ic_task, ctx, 630cd98e85aSSteve Longerbeam image->type == IMAGE_CONVERT_IN ? 631cd98e85aSSteve Longerbeam "Input" : "Output", row, col, 632cd98e85aSSteve Longerbeam row_off + col_off); 633c4e45658SSteve Longerbeam return -EINVAL; 634cd98e85aSSteve Longerbeam } 635cd98e85aSSteve Longerbeam } 636cd98e85aSSteve Longerbeam } 637cd98e85aSSteve Longerbeam 638c4e45658SSteve Longerbeam return 0; 639c4e45658SSteve Longerbeam } 640c4e45658SSteve Longerbeam 641c4e45658SSteve Longerbeam static int calc_tile_offsets(struct ipu_image_convert_ctx *ctx, 642cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image) 643cd98e85aSSteve Longerbeam { 644cd98e85aSSteve Longerbeam if (image->fmt->planar) 645c4e45658SSteve Longerbeam return calc_tile_offsets_planar(ctx, image); 646c4e45658SSteve Longerbeam 647c4e45658SSteve Longerbeam return calc_tile_offsets_packed(ctx, image); 648cd98e85aSSteve Longerbeam } 649cd98e85aSSteve Longerbeam 650cd98e85aSSteve Longerbeam /* 65170b9b6b3SPhilipp Zabel * Calculate the resizing ratio for the IC main processing section given input 65270b9b6b3SPhilipp Zabel * size, fixed downsizing coefficient, and output size. 65370b9b6b3SPhilipp Zabel * Either round to closest for the next tile's first pixel to minimize seams 65470b9b6b3SPhilipp Zabel * and distortion (for all but right column / bottom row), or round down to 65570b9b6b3SPhilipp Zabel * avoid sampling beyond the edges of the input image for this tile's last 65670b9b6b3SPhilipp Zabel * pixel. 65770b9b6b3SPhilipp Zabel * Returns the resizing coefficient, resizing ratio is 8192.0 / resize_coeff. 65870b9b6b3SPhilipp Zabel */ 65970b9b6b3SPhilipp Zabel static u32 calc_resize_coeff(u32 input_size, u32 downsize_coeff, 66070b9b6b3SPhilipp Zabel u32 output_size, bool allow_overshoot) 66170b9b6b3SPhilipp Zabel { 66270b9b6b3SPhilipp Zabel u32 downsized = input_size >> downsize_coeff; 66370b9b6b3SPhilipp Zabel 66470b9b6b3SPhilipp Zabel if (allow_overshoot) 66570b9b6b3SPhilipp Zabel return DIV_ROUND_CLOSEST(8192 * downsized, output_size); 66670b9b6b3SPhilipp Zabel else 66770b9b6b3SPhilipp Zabel return 8192 * (downsized - 1) / (output_size - 1); 66870b9b6b3SPhilipp Zabel } 66970b9b6b3SPhilipp Zabel 67070b9b6b3SPhilipp Zabel /* 67170b9b6b3SPhilipp Zabel * Slightly modify resize coefficients per tile to hide the bilinear 67270b9b6b3SPhilipp Zabel * interpolator reset at tile borders, shifting the right / bottom edge 67370b9b6b3SPhilipp Zabel * by up to a half input pixel. This removes noticeable seams between 67470b9b6b3SPhilipp Zabel * tiles at higher upscaling factors. 67570b9b6b3SPhilipp Zabel */ 67670b9b6b3SPhilipp Zabel static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx) 67770b9b6b3SPhilipp Zabel { 67870b9b6b3SPhilipp Zabel struct ipu_image_convert_chan *chan = ctx->chan; 67970b9b6b3SPhilipp Zabel struct ipu_image_convert_priv *priv = chan->priv; 68070b9b6b3SPhilipp Zabel struct ipu_image_tile *in_tile, *out_tile; 68170b9b6b3SPhilipp Zabel unsigned int col, row, tile_idx; 68270b9b6b3SPhilipp Zabel unsigned int last_output; 68370b9b6b3SPhilipp Zabel 68470b9b6b3SPhilipp Zabel for (col = 0; col < ctx->in.num_cols; col++) { 68570b9b6b3SPhilipp Zabel bool closest = (col < ctx->in.num_cols - 1) && 68670b9b6b3SPhilipp Zabel !(ctx->rot_mode & IPU_ROT_BIT_HFLIP); 68770b9b6b3SPhilipp Zabel u32 resized_width; 68870b9b6b3SPhilipp Zabel u32 resize_coeff_h; 68970b9b6b3SPhilipp Zabel 69070b9b6b3SPhilipp Zabel tile_idx = col; 69170b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 69270b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 69370b9b6b3SPhilipp Zabel 69470b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 69570b9b6b3SPhilipp Zabel resized_width = out_tile->height; 69670b9b6b3SPhilipp Zabel else 69770b9b6b3SPhilipp Zabel resized_width = out_tile->width; 69870b9b6b3SPhilipp Zabel 69970b9b6b3SPhilipp Zabel resize_coeff_h = calc_resize_coeff(in_tile->width, 70070b9b6b3SPhilipp Zabel ctx->downsize_coeff_h, 70170b9b6b3SPhilipp Zabel resized_width, closest); 70270b9b6b3SPhilipp Zabel 70370b9b6b3SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: column %u hscale: *8192/%u\n", 70470b9b6b3SPhilipp Zabel __func__, col, resize_coeff_h); 70570b9b6b3SPhilipp Zabel 70670b9b6b3SPhilipp Zabel 70770b9b6b3SPhilipp Zabel for (row = 0; row < ctx->in.num_rows; row++) { 70870b9b6b3SPhilipp Zabel tile_idx = row * ctx->in.num_cols + col; 70970b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 71070b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 71170b9b6b3SPhilipp Zabel 71270b9b6b3SPhilipp Zabel /* 71370b9b6b3SPhilipp Zabel * With the horizontal scaling factor known, round up 71470b9b6b3SPhilipp Zabel * resized width (output width or height) to burst size. 71570b9b6b3SPhilipp Zabel */ 71670b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 71770b9b6b3SPhilipp Zabel out_tile->height = round_up(resized_width, 8); 71870b9b6b3SPhilipp Zabel else 71970b9b6b3SPhilipp Zabel out_tile->width = round_up(resized_width, 8); 72070b9b6b3SPhilipp Zabel 72170b9b6b3SPhilipp Zabel /* 72270b9b6b3SPhilipp Zabel * Calculate input width from the last accessed input 72370b9b6b3SPhilipp Zabel * pixel given resized width and scaling coefficients. 72470b9b6b3SPhilipp Zabel * Round up to burst size. 72570b9b6b3SPhilipp Zabel */ 72670b9b6b3SPhilipp Zabel last_output = round_up(resized_width, 8) - 1; 72770b9b6b3SPhilipp Zabel if (closest) 72870b9b6b3SPhilipp Zabel last_output++; 72970b9b6b3SPhilipp Zabel in_tile->width = round_up( 73070b9b6b3SPhilipp Zabel (DIV_ROUND_UP(last_output * resize_coeff_h, 73170b9b6b3SPhilipp Zabel 8192) + 1) 73270b9b6b3SPhilipp Zabel << ctx->downsize_coeff_h, 8); 73370b9b6b3SPhilipp Zabel } 73470b9b6b3SPhilipp Zabel 73570b9b6b3SPhilipp Zabel ctx->resize_coeffs_h[col] = resize_coeff_h; 73670b9b6b3SPhilipp Zabel } 73770b9b6b3SPhilipp Zabel 73870b9b6b3SPhilipp Zabel for (row = 0; row < ctx->in.num_rows; row++) { 73970b9b6b3SPhilipp Zabel bool closest = (row < ctx->in.num_rows - 1) && 74070b9b6b3SPhilipp Zabel !(ctx->rot_mode & IPU_ROT_BIT_VFLIP); 74170b9b6b3SPhilipp Zabel u32 resized_height; 74270b9b6b3SPhilipp Zabel u32 resize_coeff_v; 74370b9b6b3SPhilipp Zabel 74470b9b6b3SPhilipp Zabel tile_idx = row * ctx->in.num_cols; 74570b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 74670b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 74770b9b6b3SPhilipp Zabel 74870b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 74970b9b6b3SPhilipp Zabel resized_height = out_tile->width; 75070b9b6b3SPhilipp Zabel else 75170b9b6b3SPhilipp Zabel resized_height = out_tile->height; 75270b9b6b3SPhilipp Zabel 75370b9b6b3SPhilipp Zabel resize_coeff_v = calc_resize_coeff(in_tile->height, 75470b9b6b3SPhilipp Zabel ctx->downsize_coeff_v, 75570b9b6b3SPhilipp Zabel resized_height, closest); 75670b9b6b3SPhilipp Zabel 75770b9b6b3SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: row %u vscale: *8192/%u\n", 75870b9b6b3SPhilipp Zabel __func__, row, resize_coeff_v); 75970b9b6b3SPhilipp Zabel 76070b9b6b3SPhilipp Zabel for (col = 0; col < ctx->in.num_cols; col++) { 76170b9b6b3SPhilipp Zabel tile_idx = row * ctx->in.num_cols + col; 76270b9b6b3SPhilipp Zabel in_tile = &ctx->in.tile[tile_idx]; 76370b9b6b3SPhilipp Zabel out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]]; 76470b9b6b3SPhilipp Zabel 76570b9b6b3SPhilipp Zabel /* 76670b9b6b3SPhilipp Zabel * With the vertical scaling factor known, round up 76770b9b6b3SPhilipp Zabel * resized height (output width or height) to IDMAC 76870b9b6b3SPhilipp Zabel * limitations. 76970b9b6b3SPhilipp Zabel */ 77070b9b6b3SPhilipp Zabel if (ipu_rot_mode_is_irt(ctx->rot_mode)) 77170b9b6b3SPhilipp Zabel out_tile->width = round_up(resized_height, 2); 77270b9b6b3SPhilipp Zabel else 77370b9b6b3SPhilipp Zabel out_tile->height = round_up(resized_height, 2); 77470b9b6b3SPhilipp Zabel 77570b9b6b3SPhilipp Zabel /* 77670b9b6b3SPhilipp Zabel * Calculate input width from the last accessed input 77770b9b6b3SPhilipp Zabel * pixel given resized height and scaling coefficients. 77870b9b6b3SPhilipp Zabel * Align to IDMAC restrictions. 77970b9b6b3SPhilipp Zabel */ 78070b9b6b3SPhilipp Zabel last_output = round_up(resized_height, 2) - 1; 78170b9b6b3SPhilipp Zabel if (closest) 78270b9b6b3SPhilipp Zabel last_output++; 78370b9b6b3SPhilipp Zabel in_tile->height = round_up( 78470b9b6b3SPhilipp Zabel (DIV_ROUND_UP(last_output * resize_coeff_v, 78570b9b6b3SPhilipp Zabel 8192) + 1) 78670b9b6b3SPhilipp Zabel << ctx->downsize_coeff_v, 2); 78770b9b6b3SPhilipp Zabel } 78870b9b6b3SPhilipp Zabel 78970b9b6b3SPhilipp Zabel ctx->resize_coeffs_v[row] = resize_coeff_v; 79070b9b6b3SPhilipp Zabel } 79170b9b6b3SPhilipp Zabel } 79270b9b6b3SPhilipp Zabel 79370b9b6b3SPhilipp Zabel /* 794cd98e85aSSteve Longerbeam * return the number of runs in given queue (pending_q or done_q) 795cd98e85aSSteve Longerbeam * for this context. hold irqlock when calling. 796cd98e85aSSteve Longerbeam */ 797cd98e85aSSteve Longerbeam static int get_run_count(struct ipu_image_convert_ctx *ctx, 798cd98e85aSSteve Longerbeam struct list_head *q) 799cd98e85aSSteve Longerbeam { 800cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 801cd98e85aSSteve Longerbeam int count = 0; 802cd98e85aSSteve Longerbeam 803cd98e85aSSteve Longerbeam lockdep_assert_held(&ctx->chan->irqlock); 804cd98e85aSSteve Longerbeam 805cd98e85aSSteve Longerbeam list_for_each_entry(run, q, list) { 806cd98e85aSSteve Longerbeam if (run->ctx == ctx) 807cd98e85aSSteve Longerbeam count++; 808cd98e85aSSteve Longerbeam } 809cd98e85aSSteve Longerbeam 810cd98e85aSSteve Longerbeam return count; 811cd98e85aSSteve Longerbeam } 812cd98e85aSSteve Longerbeam 813cd98e85aSSteve Longerbeam static void convert_stop(struct ipu_image_convert_run *run) 814cd98e85aSSteve Longerbeam { 815cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 816cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 817cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 818cd98e85aSSteve Longerbeam 819cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: stopping ctx %p run %p\n", 820cd98e85aSSteve Longerbeam __func__, chan->ic_task, ctx, run); 821cd98e85aSSteve Longerbeam 822cd98e85aSSteve Longerbeam /* disable IC tasks and the channels */ 823cd98e85aSSteve Longerbeam ipu_ic_task_disable(chan->ic); 824cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->in_chan); 825cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->out_chan); 826cd98e85aSSteve Longerbeam 827cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 828cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->rotation_in_chan); 829cd98e85aSSteve Longerbeam ipu_idmac_disable_channel(chan->rotation_out_chan); 830cd98e85aSSteve Longerbeam ipu_idmac_unlink(chan->out_chan, chan->rotation_in_chan); 831cd98e85aSSteve Longerbeam } 832cd98e85aSSteve Longerbeam 833cd98e85aSSteve Longerbeam ipu_ic_disable(chan->ic); 834cd98e85aSSteve Longerbeam } 835cd98e85aSSteve Longerbeam 836cd98e85aSSteve Longerbeam static void init_idmac_channel(struct ipu_image_convert_ctx *ctx, 837cd98e85aSSteve Longerbeam struct ipuv3_channel *channel, 838cd98e85aSSteve Longerbeam struct ipu_image_convert_image *image, 839cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode, 840dd65d2a9SPhilipp Zabel bool rot_swap_width_height, 841dd65d2a9SPhilipp Zabel unsigned int tile) 842cd98e85aSSteve Longerbeam { 843cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 844cd98e85aSSteve Longerbeam unsigned int burst_size; 845cd98e85aSSteve Longerbeam u32 width, height, stride; 846cd98e85aSSteve Longerbeam dma_addr_t addr0, addr1 = 0; 847cd98e85aSSteve Longerbeam struct ipu_image tile_image; 848cd98e85aSSteve Longerbeam unsigned int tile_idx[2]; 849cd98e85aSSteve Longerbeam 850cd98e85aSSteve Longerbeam if (image->type == IMAGE_CONVERT_OUT) { 851dd65d2a9SPhilipp Zabel tile_idx[0] = ctx->out_tile_map[tile]; 852cd98e85aSSteve Longerbeam tile_idx[1] = ctx->out_tile_map[1]; 853cd98e85aSSteve Longerbeam } else { 854dd65d2a9SPhilipp Zabel tile_idx[0] = tile; 855cd98e85aSSteve Longerbeam tile_idx[1] = 1; 856cd98e85aSSteve Longerbeam } 857cd98e85aSSteve Longerbeam 858cd98e85aSSteve Longerbeam if (rot_swap_width_height) { 859dd65d2a9SPhilipp Zabel width = image->tile[tile_idx[0]].height; 860dd65d2a9SPhilipp Zabel height = image->tile[tile_idx[0]].width; 861dd65d2a9SPhilipp Zabel stride = image->tile[tile_idx[0]].rot_stride; 862cd98e85aSSteve Longerbeam addr0 = ctx->rot_intermediate[0].phys; 863cd98e85aSSteve Longerbeam if (ctx->double_buffering) 864cd98e85aSSteve Longerbeam addr1 = ctx->rot_intermediate[1].phys; 865cd98e85aSSteve Longerbeam } else { 866dd65d2a9SPhilipp Zabel width = image->tile[tile_idx[0]].width; 867dd65d2a9SPhilipp Zabel height = image->tile[tile_idx[0]].height; 868cd98e85aSSteve Longerbeam stride = image->stride; 869cd98e85aSSteve Longerbeam addr0 = image->base.phys0 + 870cd98e85aSSteve Longerbeam image->tile[tile_idx[0]].offset; 871cd98e85aSSteve Longerbeam if (ctx->double_buffering) 872cd98e85aSSteve Longerbeam addr1 = image->base.phys0 + 873cd98e85aSSteve Longerbeam image->tile[tile_idx[1]].offset; 874cd98e85aSSteve Longerbeam } 875cd98e85aSSteve Longerbeam 876cd98e85aSSteve Longerbeam ipu_cpmem_zero(channel); 877cd98e85aSSteve Longerbeam 878cd98e85aSSteve Longerbeam memset(&tile_image, 0, sizeof(tile_image)); 879cd98e85aSSteve Longerbeam tile_image.pix.width = tile_image.rect.width = width; 880cd98e85aSSteve Longerbeam tile_image.pix.height = tile_image.rect.height = height; 881cd98e85aSSteve Longerbeam tile_image.pix.bytesperline = stride; 882cd98e85aSSteve Longerbeam tile_image.pix.pixelformat = image->fmt->fourcc; 883cd98e85aSSteve Longerbeam tile_image.phys0 = addr0; 884cd98e85aSSteve Longerbeam tile_image.phys1 = addr1; 885dec408fdSSteve Longerbeam if (image->fmt->planar && !rot_swap_width_height) { 886dec408fdSSteve Longerbeam tile_image.u_offset = image->tile[tile_idx[0]].u_off; 887dec408fdSSteve Longerbeam tile_image.v_offset = image->tile[tile_idx[0]].v_off; 888dec408fdSSteve Longerbeam } 889cd98e85aSSteve Longerbeam 890dec408fdSSteve Longerbeam ipu_cpmem_set_image(channel, &tile_image); 891cd98e85aSSteve Longerbeam 892cd98e85aSSteve Longerbeam if (rot_mode) 893cd98e85aSSteve Longerbeam ipu_cpmem_set_rotation(channel, rot_mode); 894cd98e85aSSteve Longerbeam 895cd98e85aSSteve Longerbeam if (channel == chan->rotation_in_chan || 896cd98e85aSSteve Longerbeam channel == chan->rotation_out_chan) { 897cd98e85aSSteve Longerbeam burst_size = 8; 898cd98e85aSSteve Longerbeam ipu_cpmem_set_block_mode(channel); 899cd98e85aSSteve Longerbeam } else 900cd98e85aSSteve Longerbeam burst_size = (width % 16) ? 8 : 16; 901cd98e85aSSteve Longerbeam 902cd98e85aSSteve Longerbeam ipu_cpmem_set_burstsize(channel, burst_size); 903cd98e85aSSteve Longerbeam 904cd98e85aSSteve Longerbeam ipu_ic_task_idma_init(chan->ic, channel, width, height, 905cd98e85aSSteve Longerbeam burst_size, rot_mode); 906cd98e85aSSteve Longerbeam 907320a89adSLucas Stach /* 908320a89adSLucas Stach * Setting a non-zero AXI ID collides with the PRG AXI snooping, so 909320a89adSLucas Stach * only do this when there is no PRG present. 910320a89adSLucas Stach */ 911320a89adSLucas Stach if (!channel->ipu->prg_priv) 912cd98e85aSSteve Longerbeam ipu_cpmem_set_axi_id(channel, 1); 913cd98e85aSSteve Longerbeam 914cd98e85aSSteve Longerbeam ipu_idmac_set_double_buffer(channel, ctx->double_buffering); 915cd98e85aSSteve Longerbeam } 916cd98e85aSSteve Longerbeam 917dd65d2a9SPhilipp Zabel static int convert_start(struct ipu_image_convert_run *run, unsigned int tile) 918cd98e85aSSteve Longerbeam { 919cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 920cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 921cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 922cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 923cd98e85aSSteve Longerbeam struct ipu_image_convert_image *d_image = &ctx->out; 924cd98e85aSSteve Longerbeam enum ipu_color_space src_cs, dest_cs; 925dd65d2a9SPhilipp Zabel unsigned int dst_tile = ctx->out_tile_map[tile]; 926cd98e85aSSteve Longerbeam unsigned int dest_width, dest_height; 92770b9b6b3SPhilipp Zabel unsigned int col, row; 92870b9b6b3SPhilipp Zabel u32 rsc; 929cd98e85aSSteve Longerbeam int ret; 930cd98e85aSSteve Longerbeam 931dd65d2a9SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: task %u: starting ctx %p run %p tile %u -> %u\n", 932dd65d2a9SPhilipp Zabel __func__, chan->ic_task, ctx, run, tile, dst_tile); 933cd98e85aSSteve Longerbeam 934cd98e85aSSteve Longerbeam src_cs = ipu_pixelformat_to_colorspace(s_image->fmt->fourcc); 935cd98e85aSSteve Longerbeam dest_cs = ipu_pixelformat_to_colorspace(d_image->fmt->fourcc); 936cd98e85aSSteve Longerbeam 937cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 938cd98e85aSSteve Longerbeam /* swap width/height for resizer */ 939dd65d2a9SPhilipp Zabel dest_width = d_image->tile[dst_tile].height; 940dd65d2a9SPhilipp Zabel dest_height = d_image->tile[dst_tile].width; 941cd98e85aSSteve Longerbeam } else { 942dd65d2a9SPhilipp Zabel dest_width = d_image->tile[dst_tile].width; 943dd65d2a9SPhilipp Zabel dest_height = d_image->tile[dst_tile].height; 944cd98e85aSSteve Longerbeam } 945cd98e85aSSteve Longerbeam 94670b9b6b3SPhilipp Zabel row = tile / s_image->num_cols; 94770b9b6b3SPhilipp Zabel col = tile % s_image->num_cols; 94870b9b6b3SPhilipp Zabel 94970b9b6b3SPhilipp Zabel rsc = (ctx->downsize_coeff_v << 30) | 95070b9b6b3SPhilipp Zabel (ctx->resize_coeffs_v[row] << 16) | 95170b9b6b3SPhilipp Zabel (ctx->downsize_coeff_h << 14) | 95270b9b6b3SPhilipp Zabel (ctx->resize_coeffs_h[col]); 95370b9b6b3SPhilipp Zabel 95470b9b6b3SPhilipp Zabel dev_dbg(priv->ipu->dev, "%s: %ux%u -> %ux%u (rsc = 0x%x)\n", 95570b9b6b3SPhilipp Zabel __func__, s_image->tile[tile].width, 95670b9b6b3SPhilipp Zabel s_image->tile[tile].height, dest_width, dest_height, rsc); 95770b9b6b3SPhilipp Zabel 958cd98e85aSSteve Longerbeam /* setup the IC resizer and CSC */ 95970b9b6b3SPhilipp Zabel ret = ipu_ic_task_init_rsc(chan->ic, 960dd65d2a9SPhilipp Zabel s_image->tile[tile].width, 961dd65d2a9SPhilipp Zabel s_image->tile[tile].height, 962cd98e85aSSteve Longerbeam dest_width, 963cd98e85aSSteve Longerbeam dest_height, 96470b9b6b3SPhilipp Zabel src_cs, dest_cs, 96570b9b6b3SPhilipp Zabel rsc); 966cd98e85aSSteve Longerbeam if (ret) { 967cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "ipu_ic_task_init failed, %d\n", ret); 968cd98e85aSSteve Longerbeam return ret; 969cd98e85aSSteve Longerbeam } 970cd98e85aSSteve Longerbeam 971cd98e85aSSteve Longerbeam /* init the source MEM-->IC PP IDMAC channel */ 972cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->in_chan, s_image, 973dd65d2a9SPhilipp Zabel IPU_ROTATE_NONE, false, tile); 974cd98e85aSSteve Longerbeam 975cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 976cd98e85aSSteve Longerbeam /* init the IC PP-->MEM IDMAC channel */ 977cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->out_chan, d_image, 978dd65d2a9SPhilipp Zabel IPU_ROTATE_NONE, true, tile); 979cd98e85aSSteve Longerbeam 980cd98e85aSSteve Longerbeam /* init the MEM-->IC PP ROT IDMAC channel */ 981cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->rotation_in_chan, d_image, 982dd65d2a9SPhilipp Zabel ctx->rot_mode, true, tile); 983cd98e85aSSteve Longerbeam 984cd98e85aSSteve Longerbeam /* init the destination IC PP ROT-->MEM IDMAC channel */ 985cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->rotation_out_chan, d_image, 986dd65d2a9SPhilipp Zabel IPU_ROTATE_NONE, false, tile); 987cd98e85aSSteve Longerbeam 988cd98e85aSSteve Longerbeam /* now link IC PP-->MEM to MEM-->IC PP ROT */ 989cd98e85aSSteve Longerbeam ipu_idmac_link(chan->out_chan, chan->rotation_in_chan); 990cd98e85aSSteve Longerbeam } else { 991cd98e85aSSteve Longerbeam /* init the destination IC PP-->MEM IDMAC channel */ 992cd98e85aSSteve Longerbeam init_idmac_channel(ctx, chan->out_chan, d_image, 993dd65d2a9SPhilipp Zabel ctx->rot_mode, false, tile); 994cd98e85aSSteve Longerbeam } 995cd98e85aSSteve Longerbeam 996cd98e85aSSteve Longerbeam /* enable the IC */ 997cd98e85aSSteve Longerbeam ipu_ic_enable(chan->ic); 998cd98e85aSSteve Longerbeam 999cd98e85aSSteve Longerbeam /* set buffers ready */ 1000cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, 0); 1001cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->out_chan, 0); 1002cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) 1003cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->rotation_out_chan, 0); 1004cd98e85aSSteve Longerbeam if (ctx->double_buffering) { 1005cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, 1); 1006cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->out_chan, 1); 1007cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) 1008cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->rotation_out_chan, 1); 1009cd98e85aSSteve Longerbeam } 1010cd98e85aSSteve Longerbeam 1011cd98e85aSSteve Longerbeam /* enable the channels! */ 1012cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->in_chan); 1013cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->out_chan); 1014cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1015cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->rotation_in_chan); 1016cd98e85aSSteve Longerbeam ipu_idmac_enable_channel(chan->rotation_out_chan); 1017cd98e85aSSteve Longerbeam } 1018cd98e85aSSteve Longerbeam 1019cd98e85aSSteve Longerbeam ipu_ic_task_enable(chan->ic); 1020cd98e85aSSteve Longerbeam 1021cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->in_chan); 1022cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->out_chan); 1023cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1024cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->rotation_in_chan); 1025cd98e85aSSteve Longerbeam ipu_cpmem_dump(chan->rotation_out_chan); 1026cd98e85aSSteve Longerbeam } 1027cd98e85aSSteve Longerbeam 1028cd98e85aSSteve Longerbeam ipu_dump(priv->ipu); 1029cd98e85aSSteve Longerbeam 1030cd98e85aSSteve Longerbeam return 0; 1031cd98e85aSSteve Longerbeam } 1032cd98e85aSSteve Longerbeam 1033cd98e85aSSteve Longerbeam /* hold irqlock when calling */ 1034cd98e85aSSteve Longerbeam static int do_run(struct ipu_image_convert_run *run) 1035cd98e85aSSteve Longerbeam { 1036cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 1037cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1038cd98e85aSSteve Longerbeam 1039cd98e85aSSteve Longerbeam lockdep_assert_held(&chan->irqlock); 1040cd98e85aSSteve Longerbeam 1041cd98e85aSSteve Longerbeam ctx->in.base.phys0 = run->in_phys; 1042cd98e85aSSteve Longerbeam ctx->out.base.phys0 = run->out_phys; 1043cd98e85aSSteve Longerbeam 1044cd98e85aSSteve Longerbeam ctx->cur_buf_num = 0; 1045cd98e85aSSteve Longerbeam ctx->next_tile = 1; 1046cd98e85aSSteve Longerbeam 1047cd98e85aSSteve Longerbeam /* remove run from pending_q and set as current */ 1048cd98e85aSSteve Longerbeam list_del(&run->list); 1049cd98e85aSSteve Longerbeam chan->current_run = run; 1050cd98e85aSSteve Longerbeam 1051dd65d2a9SPhilipp Zabel return convert_start(run, 0); 1052cd98e85aSSteve Longerbeam } 1053cd98e85aSSteve Longerbeam 1054cd98e85aSSteve Longerbeam /* hold irqlock when calling */ 1055cd98e85aSSteve Longerbeam static void run_next(struct ipu_image_convert_chan *chan) 1056cd98e85aSSteve Longerbeam { 1057cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1058cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run, *tmp; 1059cd98e85aSSteve Longerbeam int ret; 1060cd98e85aSSteve Longerbeam 1061cd98e85aSSteve Longerbeam lockdep_assert_held(&chan->irqlock); 1062cd98e85aSSteve Longerbeam 1063cd98e85aSSteve Longerbeam list_for_each_entry_safe(run, tmp, &chan->pending_q, list) { 1064cd98e85aSSteve Longerbeam /* skip contexts that are aborting */ 1065cd98e85aSSteve Longerbeam if (run->ctx->aborting) { 1066cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1067cd98e85aSSteve Longerbeam "%s: task %u: skipping aborting ctx %p run %p\n", 1068cd98e85aSSteve Longerbeam __func__, chan->ic_task, run->ctx, run); 1069cd98e85aSSteve Longerbeam continue; 1070cd98e85aSSteve Longerbeam } 1071cd98e85aSSteve Longerbeam 1072cd98e85aSSteve Longerbeam ret = do_run(run); 1073cd98e85aSSteve Longerbeam if (!ret) 1074cd98e85aSSteve Longerbeam break; 1075cd98e85aSSteve Longerbeam 1076cd98e85aSSteve Longerbeam /* 1077cd98e85aSSteve Longerbeam * something went wrong with start, add the run 1078cd98e85aSSteve Longerbeam * to done q and continue to the next run in the 1079cd98e85aSSteve Longerbeam * pending q. 1080cd98e85aSSteve Longerbeam */ 1081cd98e85aSSteve Longerbeam run->status = ret; 1082cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->done_q); 1083cd98e85aSSteve Longerbeam chan->current_run = NULL; 1084cd98e85aSSteve Longerbeam } 1085cd98e85aSSteve Longerbeam } 1086cd98e85aSSteve Longerbeam 1087cd98e85aSSteve Longerbeam static void empty_done_q(struct ipu_image_convert_chan *chan) 1088cd98e85aSSteve Longerbeam { 1089cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1090cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1091cd98e85aSSteve Longerbeam unsigned long flags; 1092cd98e85aSSteve Longerbeam 1093cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1094cd98e85aSSteve Longerbeam 1095cd98e85aSSteve Longerbeam while (!list_empty(&chan->done_q)) { 1096cd98e85aSSteve Longerbeam run = list_entry(chan->done_q.next, 1097cd98e85aSSteve Longerbeam struct ipu_image_convert_run, 1098cd98e85aSSteve Longerbeam list); 1099cd98e85aSSteve Longerbeam 1100cd98e85aSSteve Longerbeam list_del(&run->list); 1101cd98e85aSSteve Longerbeam 1102cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1103cd98e85aSSteve Longerbeam "%s: task %u: completing ctx %p run %p with %d\n", 1104cd98e85aSSteve Longerbeam __func__, chan->ic_task, run->ctx, run, run->status); 1105cd98e85aSSteve Longerbeam 1106cd98e85aSSteve Longerbeam /* call the completion callback and free the run */ 1107cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1108cd98e85aSSteve Longerbeam run->ctx->complete(run, run->ctx->complete_context); 1109cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1110cd98e85aSSteve Longerbeam } 1111cd98e85aSSteve Longerbeam 1112cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1113cd98e85aSSteve Longerbeam } 1114cd98e85aSSteve Longerbeam 1115cd98e85aSSteve Longerbeam /* 1116cd98e85aSSteve Longerbeam * the bottom half thread clears out the done_q, calling the 1117cd98e85aSSteve Longerbeam * completion handler for each. 1118cd98e85aSSteve Longerbeam */ 1119cd98e85aSSteve Longerbeam static irqreturn_t do_bh(int irq, void *dev_id) 1120cd98e85aSSteve Longerbeam { 1121cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = dev_id; 1122cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1123cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1124cd98e85aSSteve Longerbeam unsigned long flags; 1125cd98e85aSSteve Longerbeam 1126cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: enter\n", __func__, 1127cd98e85aSSteve Longerbeam chan->ic_task); 1128cd98e85aSSteve Longerbeam 1129cd98e85aSSteve Longerbeam empty_done_q(chan); 1130cd98e85aSSteve Longerbeam 1131cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1132cd98e85aSSteve Longerbeam 1133cd98e85aSSteve Longerbeam /* 1134cd98e85aSSteve Longerbeam * the done_q is cleared out, signal any contexts 1135cd98e85aSSteve Longerbeam * that are aborting that abort can complete. 1136cd98e85aSSteve Longerbeam */ 1137cd98e85aSSteve Longerbeam list_for_each_entry(ctx, &chan->ctx_list, list) { 1138cd98e85aSSteve Longerbeam if (ctx->aborting) { 1139cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1140cd98e85aSSteve Longerbeam "%s: task %u: signaling abort for ctx %p\n", 1141cd98e85aSSteve Longerbeam __func__, chan->ic_task, ctx); 1142aa60b261SSteve Longerbeam complete_all(&ctx->aborted); 1143cd98e85aSSteve Longerbeam } 1144cd98e85aSSteve Longerbeam } 1145cd98e85aSSteve Longerbeam 1146cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1147cd98e85aSSteve Longerbeam 1148cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: exit\n", __func__, 1149cd98e85aSSteve Longerbeam chan->ic_task); 1150cd98e85aSSteve Longerbeam 1151cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1152cd98e85aSSteve Longerbeam } 1153cd98e85aSSteve Longerbeam 11540537db80SPhilipp Zabel static bool ic_settings_changed(struct ipu_image_convert_ctx *ctx) 11550537db80SPhilipp Zabel { 11560537db80SPhilipp Zabel unsigned int cur_tile = ctx->next_tile - 1; 11570537db80SPhilipp Zabel unsigned int next_tile = ctx->next_tile; 11580537db80SPhilipp Zabel 11590537db80SPhilipp Zabel if (ctx->resize_coeffs_h[cur_tile % ctx->in.num_cols] != 11600537db80SPhilipp Zabel ctx->resize_coeffs_h[next_tile % ctx->in.num_cols] || 11610537db80SPhilipp Zabel ctx->resize_coeffs_v[cur_tile / ctx->in.num_cols] != 11620537db80SPhilipp Zabel ctx->resize_coeffs_v[next_tile / ctx->in.num_cols] || 11630537db80SPhilipp Zabel ctx->in.tile[cur_tile].width != ctx->in.tile[next_tile].width || 11640537db80SPhilipp Zabel ctx->in.tile[cur_tile].height != ctx->in.tile[next_tile].height || 11650537db80SPhilipp Zabel ctx->out.tile[cur_tile].width != ctx->out.tile[next_tile].width || 11660537db80SPhilipp Zabel ctx->out.tile[cur_tile].height != ctx->out.tile[next_tile].height) 11670537db80SPhilipp Zabel return true; 11680537db80SPhilipp Zabel 11690537db80SPhilipp Zabel return false; 11700537db80SPhilipp Zabel } 11710537db80SPhilipp Zabel 1172cd98e85aSSteve Longerbeam /* hold irqlock when calling */ 1173cd98e85aSSteve Longerbeam static irqreturn_t do_irq(struct ipu_image_convert_run *run) 1174cd98e85aSSteve Longerbeam { 1175cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx = run->ctx; 1176cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1177cd98e85aSSteve Longerbeam struct ipu_image_tile *src_tile, *dst_tile; 1178cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image = &ctx->in; 1179cd98e85aSSteve Longerbeam struct ipu_image_convert_image *d_image = &ctx->out; 1180cd98e85aSSteve Longerbeam struct ipuv3_channel *outch; 1181cd98e85aSSteve Longerbeam unsigned int dst_idx; 1182cd98e85aSSteve Longerbeam 1183cd98e85aSSteve Longerbeam lockdep_assert_held(&chan->irqlock); 1184cd98e85aSSteve Longerbeam 1185cd98e85aSSteve Longerbeam outch = ipu_rot_mode_is_irt(ctx->rot_mode) ? 1186cd98e85aSSteve Longerbeam chan->rotation_out_chan : chan->out_chan; 1187cd98e85aSSteve Longerbeam 1188cd98e85aSSteve Longerbeam /* 1189cd98e85aSSteve Longerbeam * It is difficult to stop the channel DMA before the channels 1190cd98e85aSSteve Longerbeam * enter the paused state. Without double-buffering the channels 1191cd98e85aSSteve Longerbeam * are always in a paused state when the EOF irq occurs, so it 1192cd98e85aSSteve Longerbeam * is safe to stop the channels now. For double-buffering we 1193cd98e85aSSteve Longerbeam * just ignore the abort until the operation completes, when it 1194cd98e85aSSteve Longerbeam * is safe to shut down. 1195cd98e85aSSteve Longerbeam */ 1196cd98e85aSSteve Longerbeam if (ctx->aborting && !ctx->double_buffering) { 1197cd98e85aSSteve Longerbeam convert_stop(run); 1198cd98e85aSSteve Longerbeam run->status = -EIO; 1199cd98e85aSSteve Longerbeam goto done; 1200cd98e85aSSteve Longerbeam } 1201cd98e85aSSteve Longerbeam 1202cd98e85aSSteve Longerbeam if (ctx->next_tile == ctx->num_tiles) { 1203cd98e85aSSteve Longerbeam /* 1204cd98e85aSSteve Longerbeam * the conversion is complete 1205cd98e85aSSteve Longerbeam */ 1206cd98e85aSSteve Longerbeam convert_stop(run); 1207cd98e85aSSteve Longerbeam run->status = 0; 1208cd98e85aSSteve Longerbeam goto done; 1209cd98e85aSSteve Longerbeam } 1210cd98e85aSSteve Longerbeam 1211cd98e85aSSteve Longerbeam /* 1212cd98e85aSSteve Longerbeam * not done, place the next tile buffers. 1213cd98e85aSSteve Longerbeam */ 1214cd98e85aSSteve Longerbeam if (!ctx->double_buffering) { 12150537db80SPhilipp Zabel if (ic_settings_changed(ctx)) { 12160537db80SPhilipp Zabel convert_stop(run); 12170537db80SPhilipp Zabel convert_start(run, ctx->next_tile); 12180537db80SPhilipp Zabel } else { 1219cd98e85aSSteve Longerbeam src_tile = &s_image->tile[ctx->next_tile]; 1220cd98e85aSSteve Longerbeam dst_idx = ctx->out_tile_map[ctx->next_tile]; 1221cd98e85aSSteve Longerbeam dst_tile = &d_image->tile[dst_idx]; 1222cd98e85aSSteve Longerbeam 1223cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(chan->in_chan, 0, 12240537db80SPhilipp Zabel s_image->base.phys0 + 12250537db80SPhilipp Zabel src_tile->offset); 1226cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(outch, 0, 12270537db80SPhilipp Zabel d_image->base.phys0 + 12280537db80SPhilipp Zabel dst_tile->offset); 1229cd98e85aSSteve Longerbeam if (s_image->fmt->planar) 1230cd98e85aSSteve Longerbeam ipu_cpmem_set_uv_offset(chan->in_chan, 1231cd98e85aSSteve Longerbeam src_tile->u_off, 1232cd98e85aSSteve Longerbeam src_tile->v_off); 1233cd98e85aSSteve Longerbeam if (d_image->fmt->planar) 1234cd98e85aSSteve Longerbeam ipu_cpmem_set_uv_offset(outch, 1235cd98e85aSSteve Longerbeam dst_tile->u_off, 1236cd98e85aSSteve Longerbeam dst_tile->v_off); 1237cd98e85aSSteve Longerbeam 1238cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, 0); 1239cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(outch, 0); 12400537db80SPhilipp Zabel } 1241cd98e85aSSteve Longerbeam } else if (ctx->next_tile < ctx->num_tiles - 1) { 1242cd98e85aSSteve Longerbeam 1243cd98e85aSSteve Longerbeam src_tile = &s_image->tile[ctx->next_tile + 1]; 1244cd98e85aSSteve Longerbeam dst_idx = ctx->out_tile_map[ctx->next_tile + 1]; 1245cd98e85aSSteve Longerbeam dst_tile = &d_image->tile[dst_idx]; 1246cd98e85aSSteve Longerbeam 1247cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(chan->in_chan, ctx->cur_buf_num, 1248cd98e85aSSteve Longerbeam s_image->base.phys0 + src_tile->offset); 1249cd98e85aSSteve Longerbeam ipu_cpmem_set_buffer(outch, ctx->cur_buf_num, 1250cd98e85aSSteve Longerbeam d_image->base.phys0 + dst_tile->offset); 1251cd98e85aSSteve Longerbeam 1252cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(chan->in_chan, ctx->cur_buf_num); 1253cd98e85aSSteve Longerbeam ipu_idmac_select_buffer(outch, ctx->cur_buf_num); 1254cd98e85aSSteve Longerbeam 1255cd98e85aSSteve Longerbeam ctx->cur_buf_num ^= 1; 1256cd98e85aSSteve Longerbeam } 1257cd98e85aSSteve Longerbeam 1258cd98e85aSSteve Longerbeam ctx->next_tile++; 1259cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1260cd98e85aSSteve Longerbeam done: 1261cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->done_q); 1262cd98e85aSSteve Longerbeam chan->current_run = NULL; 1263cd98e85aSSteve Longerbeam run_next(chan); 1264cd98e85aSSteve Longerbeam return IRQ_WAKE_THREAD; 1265cd98e85aSSteve Longerbeam } 1266cd98e85aSSteve Longerbeam 1267cd98e85aSSteve Longerbeam static irqreturn_t norotate_irq(int irq, void *data) 1268cd98e85aSSteve Longerbeam { 1269cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = data; 1270cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1271cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1272cd98e85aSSteve Longerbeam unsigned long flags; 1273cd98e85aSSteve Longerbeam irqreturn_t ret; 1274cd98e85aSSteve Longerbeam 1275cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1276cd98e85aSSteve Longerbeam 1277cd98e85aSSteve Longerbeam /* get current run and its context */ 1278cd98e85aSSteve Longerbeam run = chan->current_run; 1279cd98e85aSSteve Longerbeam if (!run) { 1280cd98e85aSSteve Longerbeam ret = IRQ_NONE; 1281cd98e85aSSteve Longerbeam goto out; 1282cd98e85aSSteve Longerbeam } 1283cd98e85aSSteve Longerbeam 1284cd98e85aSSteve Longerbeam ctx = run->ctx; 1285cd98e85aSSteve Longerbeam 1286cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1287cd98e85aSSteve Longerbeam /* this is a rotation operation, just ignore */ 1288cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1289cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1290cd98e85aSSteve Longerbeam } 1291cd98e85aSSteve Longerbeam 1292cd98e85aSSteve Longerbeam ret = do_irq(run); 1293cd98e85aSSteve Longerbeam out: 1294cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1295cd98e85aSSteve Longerbeam return ret; 1296cd98e85aSSteve Longerbeam } 1297cd98e85aSSteve Longerbeam 1298cd98e85aSSteve Longerbeam static irqreturn_t rotate_irq(int irq, void *data) 1299cd98e85aSSteve Longerbeam { 1300cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = data; 1301cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1302cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1303cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1304cd98e85aSSteve Longerbeam unsigned long flags; 1305cd98e85aSSteve Longerbeam irqreturn_t ret; 1306cd98e85aSSteve Longerbeam 1307cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1308cd98e85aSSteve Longerbeam 1309cd98e85aSSteve Longerbeam /* get current run and its context */ 1310cd98e85aSSteve Longerbeam run = chan->current_run; 1311cd98e85aSSteve Longerbeam if (!run) { 1312cd98e85aSSteve Longerbeam ret = IRQ_NONE; 1313cd98e85aSSteve Longerbeam goto out; 1314cd98e85aSSteve Longerbeam } 1315cd98e85aSSteve Longerbeam 1316cd98e85aSSteve Longerbeam ctx = run->ctx; 1317cd98e85aSSteve Longerbeam 1318cd98e85aSSteve Longerbeam if (!ipu_rot_mode_is_irt(ctx->rot_mode)) { 1319cd98e85aSSteve Longerbeam /* this was NOT a rotation operation, shouldn't happen */ 1320cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "Unexpected rotation interrupt\n"); 1321cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1322cd98e85aSSteve Longerbeam return IRQ_HANDLED; 1323cd98e85aSSteve Longerbeam } 1324cd98e85aSSteve Longerbeam 1325cd98e85aSSteve Longerbeam ret = do_irq(run); 1326cd98e85aSSteve Longerbeam out: 1327cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1328cd98e85aSSteve Longerbeam return ret; 1329cd98e85aSSteve Longerbeam } 1330cd98e85aSSteve Longerbeam 1331cd98e85aSSteve Longerbeam /* 1332cd98e85aSSteve Longerbeam * try to force the completion of runs for this ctx. Called when 1333cd98e85aSSteve Longerbeam * abort wait times out in ipu_image_convert_abort(). 1334cd98e85aSSteve Longerbeam */ 1335cd98e85aSSteve Longerbeam static void force_abort(struct ipu_image_convert_ctx *ctx) 1336cd98e85aSSteve Longerbeam { 1337cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1338cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1339cd98e85aSSteve Longerbeam unsigned long flags; 1340cd98e85aSSteve Longerbeam 1341cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1342cd98e85aSSteve Longerbeam 1343cd98e85aSSteve Longerbeam run = chan->current_run; 1344cd98e85aSSteve Longerbeam if (run && run->ctx == ctx) { 1345cd98e85aSSteve Longerbeam convert_stop(run); 1346cd98e85aSSteve Longerbeam run->status = -EIO; 1347cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->done_q); 1348cd98e85aSSteve Longerbeam chan->current_run = NULL; 1349cd98e85aSSteve Longerbeam run_next(chan); 1350cd98e85aSSteve Longerbeam } 1351cd98e85aSSteve Longerbeam 1352cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1353cd98e85aSSteve Longerbeam 1354cd98e85aSSteve Longerbeam empty_done_q(chan); 1355cd98e85aSSteve Longerbeam } 1356cd98e85aSSteve Longerbeam 1357cd98e85aSSteve Longerbeam static void release_ipu_resources(struct ipu_image_convert_chan *chan) 1358cd98e85aSSteve Longerbeam { 1359cd98e85aSSteve Longerbeam if (chan->out_eof_irq >= 0) 1360cd98e85aSSteve Longerbeam free_irq(chan->out_eof_irq, chan); 1361cd98e85aSSteve Longerbeam if (chan->rot_out_eof_irq >= 0) 1362cd98e85aSSteve Longerbeam free_irq(chan->rot_out_eof_irq, chan); 1363cd98e85aSSteve Longerbeam 1364cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->in_chan)) 1365cd98e85aSSteve Longerbeam ipu_idmac_put(chan->in_chan); 1366cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->out_chan)) 1367cd98e85aSSteve Longerbeam ipu_idmac_put(chan->out_chan); 1368cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->rotation_in_chan)) 1369cd98e85aSSteve Longerbeam ipu_idmac_put(chan->rotation_in_chan); 1370cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->rotation_out_chan)) 1371cd98e85aSSteve Longerbeam ipu_idmac_put(chan->rotation_out_chan); 1372cd98e85aSSteve Longerbeam if (!IS_ERR_OR_NULL(chan->ic)) 1373cd98e85aSSteve Longerbeam ipu_ic_put(chan->ic); 1374cd98e85aSSteve Longerbeam 1375cd98e85aSSteve Longerbeam chan->in_chan = chan->out_chan = chan->rotation_in_chan = 1376cd98e85aSSteve Longerbeam chan->rotation_out_chan = NULL; 1377cd98e85aSSteve Longerbeam chan->out_eof_irq = chan->rot_out_eof_irq = -1; 1378cd98e85aSSteve Longerbeam } 1379cd98e85aSSteve Longerbeam 1380cd98e85aSSteve Longerbeam static int get_ipu_resources(struct ipu_image_convert_chan *chan) 1381cd98e85aSSteve Longerbeam { 1382cd98e85aSSteve Longerbeam const struct ipu_image_convert_dma_chan *dma = chan->dma_ch; 1383cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1384cd98e85aSSteve Longerbeam int ret; 1385cd98e85aSSteve Longerbeam 1386cd98e85aSSteve Longerbeam /* get IC */ 1387cd98e85aSSteve Longerbeam chan->ic = ipu_ic_get(priv->ipu, chan->ic_task); 1388cd98e85aSSteve Longerbeam if (IS_ERR(chan->ic)) { 1389cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire IC\n"); 1390cd98e85aSSteve Longerbeam ret = PTR_ERR(chan->ic); 1391cd98e85aSSteve Longerbeam goto err; 1392cd98e85aSSteve Longerbeam } 1393cd98e85aSSteve Longerbeam 1394cd98e85aSSteve Longerbeam /* get IDMAC channels */ 1395cd98e85aSSteve Longerbeam chan->in_chan = ipu_idmac_get(priv->ipu, dma->in); 1396cd98e85aSSteve Longerbeam chan->out_chan = ipu_idmac_get(priv->ipu, dma->out); 1397cd98e85aSSteve Longerbeam if (IS_ERR(chan->in_chan) || IS_ERR(chan->out_chan)) { 1398cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire idmac channels\n"); 1399cd98e85aSSteve Longerbeam ret = -EBUSY; 1400cd98e85aSSteve Longerbeam goto err; 1401cd98e85aSSteve Longerbeam } 1402cd98e85aSSteve Longerbeam 1403cd98e85aSSteve Longerbeam chan->rotation_in_chan = ipu_idmac_get(priv->ipu, dma->rot_in); 1404cd98e85aSSteve Longerbeam chan->rotation_out_chan = ipu_idmac_get(priv->ipu, dma->rot_out); 1405cd98e85aSSteve Longerbeam if (IS_ERR(chan->rotation_in_chan) || IS_ERR(chan->rotation_out_chan)) { 1406cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, 1407cd98e85aSSteve Longerbeam "could not acquire idmac rotation channels\n"); 1408cd98e85aSSteve Longerbeam ret = -EBUSY; 1409cd98e85aSSteve Longerbeam goto err; 1410cd98e85aSSteve Longerbeam } 1411cd98e85aSSteve Longerbeam 1412cd98e85aSSteve Longerbeam /* acquire the EOF interrupts */ 1413cd98e85aSSteve Longerbeam chan->out_eof_irq = ipu_idmac_channel_irq(priv->ipu, 1414cd98e85aSSteve Longerbeam chan->out_chan, 1415cd98e85aSSteve Longerbeam IPU_IRQ_EOF); 1416cd98e85aSSteve Longerbeam 1417cd98e85aSSteve Longerbeam ret = request_threaded_irq(chan->out_eof_irq, norotate_irq, do_bh, 1418cd98e85aSSteve Longerbeam 0, "ipu-ic", chan); 1419cd98e85aSSteve Longerbeam if (ret < 0) { 1420cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire irq %d\n", 1421cd98e85aSSteve Longerbeam chan->out_eof_irq); 1422cd98e85aSSteve Longerbeam chan->out_eof_irq = -1; 1423cd98e85aSSteve Longerbeam goto err; 1424cd98e85aSSteve Longerbeam } 1425cd98e85aSSteve Longerbeam 1426cd98e85aSSteve Longerbeam chan->rot_out_eof_irq = ipu_idmac_channel_irq(priv->ipu, 1427cd98e85aSSteve Longerbeam chan->rotation_out_chan, 1428cd98e85aSSteve Longerbeam IPU_IRQ_EOF); 1429cd98e85aSSteve Longerbeam 1430cd98e85aSSteve Longerbeam ret = request_threaded_irq(chan->rot_out_eof_irq, rotate_irq, do_bh, 1431cd98e85aSSteve Longerbeam 0, "ipu-ic", chan); 1432cd98e85aSSteve Longerbeam if (ret < 0) { 1433cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "could not acquire irq %d\n", 1434cd98e85aSSteve Longerbeam chan->rot_out_eof_irq); 1435cd98e85aSSteve Longerbeam chan->rot_out_eof_irq = -1; 1436cd98e85aSSteve Longerbeam goto err; 1437cd98e85aSSteve Longerbeam } 1438cd98e85aSSteve Longerbeam 1439cd98e85aSSteve Longerbeam return 0; 1440cd98e85aSSteve Longerbeam err: 1441cd98e85aSSteve Longerbeam release_ipu_resources(chan); 1442cd98e85aSSteve Longerbeam return ret; 1443cd98e85aSSteve Longerbeam } 1444cd98e85aSSteve Longerbeam 1445cd98e85aSSteve Longerbeam static int fill_image(struct ipu_image_convert_ctx *ctx, 1446cd98e85aSSteve Longerbeam struct ipu_image_convert_image *ic_image, 1447cd98e85aSSteve Longerbeam struct ipu_image *image, 1448cd98e85aSSteve Longerbeam enum ipu_image_convert_type type) 1449cd98e85aSSteve Longerbeam { 1450cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = ctx->chan->priv; 1451cd98e85aSSteve Longerbeam 1452cd98e85aSSteve Longerbeam ic_image->base = *image; 1453cd98e85aSSteve Longerbeam ic_image->type = type; 1454cd98e85aSSteve Longerbeam 1455cd98e85aSSteve Longerbeam ic_image->fmt = get_format(image->pix.pixelformat); 1456cd98e85aSSteve Longerbeam if (!ic_image->fmt) { 1457cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "pixelformat not supported for %s\n", 1458cd98e85aSSteve Longerbeam type == IMAGE_CONVERT_OUT ? "Output" : "Input"); 1459cd98e85aSSteve Longerbeam return -EINVAL; 1460cd98e85aSSteve Longerbeam } 1461cd98e85aSSteve Longerbeam 1462cd98e85aSSteve Longerbeam if (ic_image->fmt->planar) 1463cd98e85aSSteve Longerbeam ic_image->stride = ic_image->base.pix.width; 1464cd98e85aSSteve Longerbeam else 1465cd98e85aSSteve Longerbeam ic_image->stride = ic_image->base.pix.bytesperline; 1466cd98e85aSSteve Longerbeam 1467cd98e85aSSteve Longerbeam calc_tile_dimensions(ctx, ic_image); 1468cd98e85aSSteve Longerbeam 1469c4e45658SSteve Longerbeam return calc_tile_offsets(ctx, ic_image); 1470cd98e85aSSteve Longerbeam } 1471cd98e85aSSteve Longerbeam 1472cd98e85aSSteve Longerbeam /* borrowed from drivers/media/v4l2-core/v4l2-common.c */ 1473cd98e85aSSteve Longerbeam static unsigned int clamp_align(unsigned int x, unsigned int min, 1474cd98e85aSSteve Longerbeam unsigned int max, unsigned int align) 1475cd98e85aSSteve Longerbeam { 1476cd98e85aSSteve Longerbeam /* Bits that must be zero to be aligned */ 1477cd98e85aSSteve Longerbeam unsigned int mask = ~((1 << align) - 1); 1478cd98e85aSSteve Longerbeam 1479cd98e85aSSteve Longerbeam /* Clamp to aligned min and max */ 1480cd98e85aSSteve Longerbeam x = clamp(x, (min + ~mask) & mask, max & mask); 1481cd98e85aSSteve Longerbeam 1482cd98e85aSSteve Longerbeam /* Round to nearest aligned value */ 1483cd98e85aSSteve Longerbeam if (align) 1484cd98e85aSSteve Longerbeam x = (x + (1 << (align - 1))) & mask; 1485cd98e85aSSteve Longerbeam 1486cd98e85aSSteve Longerbeam return x; 1487cd98e85aSSteve Longerbeam } 1488cd98e85aSSteve Longerbeam 1489cd98e85aSSteve Longerbeam /* 1490cd98e85aSSteve Longerbeam * We have to adjust the tile width such that the tile physaddrs and 1491cd98e85aSSteve Longerbeam * U and V plane offsets are multiples of 8 bytes as required by 1492cd98e85aSSteve Longerbeam * the IPU DMA Controller. For the planar formats, this corresponds 1493cd98e85aSSteve Longerbeam * to a pixel alignment of 16 (but use a more formal equation since 1494cd98e85aSSteve Longerbeam * the variables are available). For all the packed formats, 8 is 1495cd98e85aSSteve Longerbeam * good enough. 1496cd98e85aSSteve Longerbeam */ 1497cd98e85aSSteve Longerbeam static inline u32 tile_width_align(const struct ipu_image_pixfmt *fmt) 1498cd98e85aSSteve Longerbeam { 1499cd98e85aSSteve Longerbeam return fmt->planar ? 8 * fmt->uv_width_dec : 8; 1500cd98e85aSSteve Longerbeam } 1501cd98e85aSSteve Longerbeam 1502cd98e85aSSteve Longerbeam /* 1503cd98e85aSSteve Longerbeam * For tile height alignment, we have to ensure that the output tile 1504cd98e85aSSteve Longerbeam * heights are multiples of 8 lines if the IRT is required by the 1505cd98e85aSSteve Longerbeam * given rotation mode (the IRT performs rotations on 8x8 blocks 1506cd98e85aSSteve Longerbeam * at a time). If the IRT is not used, or for input image tiles, 1507cd98e85aSSteve Longerbeam * 2 lines are good enough. 1508cd98e85aSSteve Longerbeam */ 1509cd98e85aSSteve Longerbeam static inline u32 tile_height_align(enum ipu_image_convert_type type, 1510cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1511cd98e85aSSteve Longerbeam { 1512cd98e85aSSteve Longerbeam return (type == IMAGE_CONVERT_OUT && 1513cd98e85aSSteve Longerbeam ipu_rot_mode_is_irt(rot_mode)) ? 8 : 2; 1514cd98e85aSSteve Longerbeam } 1515cd98e85aSSteve Longerbeam 1516cd98e85aSSteve Longerbeam /* Adjusts input/output images to IPU restrictions */ 1517cd98e85aSSteve Longerbeam void ipu_image_convert_adjust(struct ipu_image *in, struct ipu_image *out, 1518cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1519cd98e85aSSteve Longerbeam { 1520cd98e85aSSteve Longerbeam const struct ipu_image_pixfmt *infmt, *outfmt; 1521cd98e85aSSteve Longerbeam unsigned int num_in_rows, num_in_cols; 1522cd98e85aSSteve Longerbeam unsigned int num_out_rows, num_out_cols; 1523cd98e85aSSteve Longerbeam u32 w_align, h_align; 1524cd98e85aSSteve Longerbeam 1525cd98e85aSSteve Longerbeam infmt = get_format(in->pix.pixelformat); 1526cd98e85aSSteve Longerbeam outfmt = get_format(out->pix.pixelformat); 1527cd98e85aSSteve Longerbeam 1528cd98e85aSSteve Longerbeam /* set some default pixel formats if needed */ 1529cd98e85aSSteve Longerbeam if (!infmt) { 1530cd98e85aSSteve Longerbeam in->pix.pixelformat = V4L2_PIX_FMT_RGB24; 1531cd98e85aSSteve Longerbeam infmt = get_format(V4L2_PIX_FMT_RGB24); 1532cd98e85aSSteve Longerbeam } 1533cd98e85aSSteve Longerbeam if (!outfmt) { 1534cd98e85aSSteve Longerbeam out->pix.pixelformat = V4L2_PIX_FMT_RGB24; 1535cd98e85aSSteve Longerbeam outfmt = get_format(V4L2_PIX_FMT_RGB24); 1536cd98e85aSSteve Longerbeam } 1537cd98e85aSSteve Longerbeam 1538cd98e85aSSteve Longerbeam /* image converter does not handle fields */ 1539cd98e85aSSteve Longerbeam in->pix.field = out->pix.field = V4L2_FIELD_NONE; 1540cd98e85aSSteve Longerbeam 1541cd98e85aSSteve Longerbeam /* resizer cannot downsize more than 4:1 */ 1542cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(rot_mode)) { 1543cd98e85aSSteve Longerbeam out->pix.height = max_t(__u32, out->pix.height, 1544cd98e85aSSteve Longerbeam in->pix.width / 4); 1545cd98e85aSSteve Longerbeam out->pix.width = max_t(__u32, out->pix.width, 1546cd98e85aSSteve Longerbeam in->pix.height / 4); 1547cd98e85aSSteve Longerbeam } else { 1548cd98e85aSSteve Longerbeam out->pix.width = max_t(__u32, out->pix.width, 1549cd98e85aSSteve Longerbeam in->pix.width / 4); 1550cd98e85aSSteve Longerbeam out->pix.height = max_t(__u32, out->pix.height, 1551cd98e85aSSteve Longerbeam in->pix.height / 4); 1552cd98e85aSSteve Longerbeam } 1553cd98e85aSSteve Longerbeam 1554cd98e85aSSteve Longerbeam /* get tiling rows/cols from output format */ 1555cd98e85aSSteve Longerbeam num_out_rows = num_stripes(out->pix.height); 1556cd98e85aSSteve Longerbeam num_out_cols = num_stripes(out->pix.width); 1557cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(rot_mode)) { 1558cd98e85aSSteve Longerbeam num_in_rows = num_out_cols; 1559cd98e85aSSteve Longerbeam num_in_cols = num_out_rows; 1560cd98e85aSSteve Longerbeam } else { 1561cd98e85aSSteve Longerbeam num_in_rows = num_out_rows; 1562cd98e85aSSteve Longerbeam num_in_cols = num_out_cols; 1563cd98e85aSSteve Longerbeam } 1564cd98e85aSSteve Longerbeam 1565cd98e85aSSteve Longerbeam /* align input width/height */ 1566cd98e85aSSteve Longerbeam w_align = ilog2(tile_width_align(infmt) * num_in_cols); 1567cd98e85aSSteve Longerbeam h_align = ilog2(tile_height_align(IMAGE_CONVERT_IN, rot_mode) * 1568cd98e85aSSteve Longerbeam num_in_rows); 1569cd98e85aSSteve Longerbeam in->pix.width = clamp_align(in->pix.width, MIN_W, MAX_W, w_align); 1570cd98e85aSSteve Longerbeam in->pix.height = clamp_align(in->pix.height, MIN_H, MAX_H, h_align); 1571cd98e85aSSteve Longerbeam 1572cd98e85aSSteve Longerbeam /* align output width/height */ 1573cd98e85aSSteve Longerbeam w_align = ilog2(tile_width_align(outfmt) * num_out_cols); 1574cd98e85aSSteve Longerbeam h_align = ilog2(tile_height_align(IMAGE_CONVERT_OUT, rot_mode) * 1575cd98e85aSSteve Longerbeam num_out_rows); 1576cd98e85aSSteve Longerbeam out->pix.width = clamp_align(out->pix.width, MIN_W, MAX_W, w_align); 1577cd98e85aSSteve Longerbeam out->pix.height = clamp_align(out->pix.height, MIN_H, MAX_H, h_align); 1578cd98e85aSSteve Longerbeam 1579cd98e85aSSteve Longerbeam /* set input/output strides and image sizes */ 1580cd98e85aSSteve Longerbeam in->pix.bytesperline = (in->pix.width * infmt->bpp) >> 3; 1581cd98e85aSSteve Longerbeam in->pix.sizeimage = in->pix.height * in->pix.bytesperline; 1582cd98e85aSSteve Longerbeam out->pix.bytesperline = (out->pix.width * outfmt->bpp) >> 3; 1583cd98e85aSSteve Longerbeam out->pix.sizeimage = out->pix.height * out->pix.bytesperline; 1584cd98e85aSSteve Longerbeam } 1585cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_adjust); 1586cd98e85aSSteve Longerbeam 1587cd98e85aSSteve Longerbeam /* 1588cd98e85aSSteve Longerbeam * this is used by ipu_image_convert_prepare() to verify set input and 1589cd98e85aSSteve Longerbeam * output images are valid before starting the conversion. Clients can 1590cd98e85aSSteve Longerbeam * also call it before calling ipu_image_convert_prepare(). 1591cd98e85aSSteve Longerbeam */ 1592cd98e85aSSteve Longerbeam int ipu_image_convert_verify(struct ipu_image *in, struct ipu_image *out, 1593cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1594cd98e85aSSteve Longerbeam { 1595cd98e85aSSteve Longerbeam struct ipu_image testin, testout; 1596cd98e85aSSteve Longerbeam 1597cd98e85aSSteve Longerbeam testin = *in; 1598cd98e85aSSteve Longerbeam testout = *out; 1599cd98e85aSSteve Longerbeam 1600cd98e85aSSteve Longerbeam ipu_image_convert_adjust(&testin, &testout, rot_mode); 1601cd98e85aSSteve Longerbeam 1602cd98e85aSSteve Longerbeam if (testin.pix.width != in->pix.width || 1603cd98e85aSSteve Longerbeam testin.pix.height != in->pix.height || 1604cd98e85aSSteve Longerbeam testout.pix.width != out->pix.width || 1605cd98e85aSSteve Longerbeam testout.pix.height != out->pix.height) 1606cd98e85aSSteve Longerbeam return -EINVAL; 1607cd98e85aSSteve Longerbeam 1608cd98e85aSSteve Longerbeam return 0; 1609cd98e85aSSteve Longerbeam } 1610cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_verify); 1611cd98e85aSSteve Longerbeam 1612cd98e85aSSteve Longerbeam /* 1613cd98e85aSSteve Longerbeam * Call ipu_image_convert_prepare() to prepare for the conversion of 1614cd98e85aSSteve Longerbeam * given images and rotation mode. Returns a new conversion context. 1615cd98e85aSSteve Longerbeam */ 1616cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx * 1617cd98e85aSSteve Longerbeam ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task, 1618cd98e85aSSteve Longerbeam struct ipu_image *in, struct ipu_image *out, 1619cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode, 1620cd98e85aSSteve Longerbeam ipu_image_convert_cb_t complete, 1621cd98e85aSSteve Longerbeam void *complete_context) 1622cd98e85aSSteve Longerbeam { 1623cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = ipu->image_convert_priv; 1624cd98e85aSSteve Longerbeam struct ipu_image_convert_image *s_image, *d_image; 1625cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan; 1626cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1627cd98e85aSSteve Longerbeam unsigned long flags; 1628cd98e85aSSteve Longerbeam bool get_res; 1629cd98e85aSSteve Longerbeam int ret; 1630cd98e85aSSteve Longerbeam 1631cd98e85aSSteve Longerbeam if (!in || !out || !complete || 1632cd98e85aSSteve Longerbeam (ic_task != IC_TASK_VIEWFINDER && 1633cd98e85aSSteve Longerbeam ic_task != IC_TASK_POST_PROCESSOR)) 1634cd98e85aSSteve Longerbeam return ERR_PTR(-EINVAL); 1635cd98e85aSSteve Longerbeam 1636cd98e85aSSteve Longerbeam /* verify the in/out images before continuing */ 1637cd98e85aSSteve Longerbeam ret = ipu_image_convert_verify(in, out, rot_mode); 1638cd98e85aSSteve Longerbeam if (ret) { 1639cd98e85aSSteve Longerbeam dev_err(priv->ipu->dev, "%s: in/out formats invalid\n", 1640cd98e85aSSteve Longerbeam __func__); 1641cd98e85aSSteve Longerbeam return ERR_PTR(ret); 1642cd98e85aSSteve Longerbeam } 1643cd98e85aSSteve Longerbeam 1644cd98e85aSSteve Longerbeam chan = &priv->chan[ic_task]; 1645cd98e85aSSteve Longerbeam 1646cd98e85aSSteve Longerbeam ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 1647cd98e85aSSteve Longerbeam if (!ctx) 1648cd98e85aSSteve Longerbeam return ERR_PTR(-ENOMEM); 1649cd98e85aSSteve Longerbeam 1650cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p\n", __func__, 1651cd98e85aSSteve Longerbeam chan->ic_task, ctx); 1652cd98e85aSSteve Longerbeam 1653cd98e85aSSteve Longerbeam ctx->chan = chan; 1654cd98e85aSSteve Longerbeam init_completion(&ctx->aborted); 1655cd98e85aSSteve Longerbeam 1656cd98e85aSSteve Longerbeam s_image = &ctx->in; 1657cd98e85aSSteve Longerbeam d_image = &ctx->out; 1658cd98e85aSSteve Longerbeam 1659cd98e85aSSteve Longerbeam /* set tiling and rotation */ 1660cd98e85aSSteve Longerbeam d_image->num_rows = num_stripes(out->pix.height); 1661cd98e85aSSteve Longerbeam d_image->num_cols = num_stripes(out->pix.width); 1662cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(rot_mode)) { 1663cd98e85aSSteve Longerbeam s_image->num_rows = d_image->num_cols; 1664cd98e85aSSteve Longerbeam s_image->num_cols = d_image->num_rows; 1665cd98e85aSSteve Longerbeam } else { 1666cd98e85aSSteve Longerbeam s_image->num_rows = d_image->num_rows; 1667cd98e85aSSteve Longerbeam s_image->num_cols = d_image->num_cols; 1668cd98e85aSSteve Longerbeam } 1669cd98e85aSSteve Longerbeam 1670cd98e85aSSteve Longerbeam ctx->num_tiles = d_image->num_cols * d_image->num_rows; 1671cd98e85aSSteve Longerbeam ctx->rot_mode = rot_mode; 1672cd98e85aSSteve Longerbeam 167370b9b6b3SPhilipp Zabel ret = calc_image_resize_coefficients(ctx, in, out); 167470b9b6b3SPhilipp Zabel if (ret) 167570b9b6b3SPhilipp Zabel goto out_free; 167670b9b6b3SPhilipp Zabel 1677cd98e85aSSteve Longerbeam ret = fill_image(ctx, s_image, in, IMAGE_CONVERT_IN); 1678cd98e85aSSteve Longerbeam if (ret) 1679cd98e85aSSteve Longerbeam goto out_free; 1680cd98e85aSSteve Longerbeam ret = fill_image(ctx, d_image, out, IMAGE_CONVERT_OUT); 1681cd98e85aSSteve Longerbeam if (ret) 1682cd98e85aSSteve Longerbeam goto out_free; 1683cd98e85aSSteve Longerbeam 1684cd98e85aSSteve Longerbeam calc_out_tile_map(ctx); 168570b9b6b3SPhilipp Zabel calc_tile_resize_coefficients(ctx); 1686cd98e85aSSteve Longerbeam 1687cd98e85aSSteve Longerbeam dump_format(ctx, s_image); 1688cd98e85aSSteve Longerbeam dump_format(ctx, d_image); 1689cd98e85aSSteve Longerbeam 1690cd98e85aSSteve Longerbeam ctx->complete = complete; 1691cd98e85aSSteve Longerbeam ctx->complete_context = complete_context; 1692cd98e85aSSteve Longerbeam 1693cd98e85aSSteve Longerbeam /* 1694cd98e85aSSteve Longerbeam * Can we use double-buffering for this operation? If there is 1695cd98e85aSSteve Longerbeam * only one tile (the whole image can be converted in a single 1696cd98e85aSSteve Longerbeam * operation) there's no point in using double-buffering. Also, 1697cd98e85aSSteve Longerbeam * the IPU's IDMAC channels allow only a single U and V plane 1698cd98e85aSSteve Longerbeam * offset shared between both buffers, but these offsets change 1699cd98e85aSSteve Longerbeam * for every tile, and therefore would have to be updated for 1700cd98e85aSSteve Longerbeam * each buffer which is not possible. So double-buffering is 1701cd98e85aSSteve Longerbeam * impossible when either the source or destination images are 1702cd98e85aSSteve Longerbeam * a planar format (YUV420, YUV422P, etc.). 1703cd98e85aSSteve Longerbeam */ 1704cd98e85aSSteve Longerbeam ctx->double_buffering = (ctx->num_tiles > 1 && 1705cd98e85aSSteve Longerbeam !s_image->fmt->planar && 1706cd98e85aSSteve Longerbeam !d_image->fmt->planar); 1707cd98e85aSSteve Longerbeam 1708cd98e85aSSteve Longerbeam if (ipu_rot_mode_is_irt(ctx->rot_mode)) { 1709dd65d2a9SPhilipp Zabel unsigned long intermediate_size = d_image->tile[0].size; 1710dd65d2a9SPhilipp Zabel unsigned int i; 1711dd65d2a9SPhilipp Zabel 1712dd65d2a9SPhilipp Zabel for (i = 1; i < ctx->num_tiles; i++) { 1713dd65d2a9SPhilipp Zabel if (d_image->tile[i].size > intermediate_size) 1714dd65d2a9SPhilipp Zabel intermediate_size = d_image->tile[i].size; 1715dd65d2a9SPhilipp Zabel } 1716dd65d2a9SPhilipp Zabel 1717cd98e85aSSteve Longerbeam ret = alloc_dma_buf(priv, &ctx->rot_intermediate[0], 1718dd65d2a9SPhilipp Zabel intermediate_size); 1719cd98e85aSSteve Longerbeam if (ret) 1720cd98e85aSSteve Longerbeam goto out_free; 1721cd98e85aSSteve Longerbeam if (ctx->double_buffering) { 1722cd98e85aSSteve Longerbeam ret = alloc_dma_buf(priv, 1723cd98e85aSSteve Longerbeam &ctx->rot_intermediate[1], 1724dd65d2a9SPhilipp Zabel intermediate_size); 1725cd98e85aSSteve Longerbeam if (ret) 1726cd98e85aSSteve Longerbeam goto out_free_dmabuf0; 1727cd98e85aSSteve Longerbeam } 1728cd98e85aSSteve Longerbeam } 1729cd98e85aSSteve Longerbeam 1730cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1731cd98e85aSSteve Longerbeam 1732cd98e85aSSteve Longerbeam get_res = list_empty(&chan->ctx_list); 1733cd98e85aSSteve Longerbeam 1734cd98e85aSSteve Longerbeam list_add_tail(&ctx->list, &chan->ctx_list); 1735cd98e85aSSteve Longerbeam 1736cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1737cd98e85aSSteve Longerbeam 1738cd98e85aSSteve Longerbeam if (get_res) { 1739cd98e85aSSteve Longerbeam ret = get_ipu_resources(chan); 1740cd98e85aSSteve Longerbeam if (ret) 1741cd98e85aSSteve Longerbeam goto out_free_dmabuf1; 1742cd98e85aSSteve Longerbeam } 1743cd98e85aSSteve Longerbeam 1744cd98e85aSSteve Longerbeam return ctx; 1745cd98e85aSSteve Longerbeam 1746cd98e85aSSteve Longerbeam out_free_dmabuf1: 1747cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[1]); 1748cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1749cd98e85aSSteve Longerbeam list_del(&ctx->list); 1750cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1751cd98e85aSSteve Longerbeam out_free_dmabuf0: 1752cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[0]); 1753cd98e85aSSteve Longerbeam out_free: 1754cd98e85aSSteve Longerbeam kfree(ctx); 1755cd98e85aSSteve Longerbeam return ERR_PTR(ret); 1756cd98e85aSSteve Longerbeam } 1757cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_prepare); 1758cd98e85aSSteve Longerbeam 1759cd98e85aSSteve Longerbeam /* 1760cd98e85aSSteve Longerbeam * Carry out a single image conversion run. Only the physaddr's of the input 1761cd98e85aSSteve Longerbeam * and output image buffers are needed. The conversion context must have 1762cd98e85aSSteve Longerbeam * been created previously with ipu_image_convert_prepare(). 1763cd98e85aSSteve Longerbeam */ 1764cd98e85aSSteve Longerbeam int ipu_image_convert_queue(struct ipu_image_convert_run *run) 1765cd98e85aSSteve Longerbeam { 1766cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan; 1767cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv; 1768cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1769cd98e85aSSteve Longerbeam unsigned long flags; 1770cd98e85aSSteve Longerbeam int ret = 0; 1771cd98e85aSSteve Longerbeam 1772cd98e85aSSteve Longerbeam if (!run || !run->ctx || !run->in_phys || !run->out_phys) 1773cd98e85aSSteve Longerbeam return -EINVAL; 1774cd98e85aSSteve Longerbeam 1775cd98e85aSSteve Longerbeam ctx = run->ctx; 1776cd98e85aSSteve Longerbeam chan = ctx->chan; 1777cd98e85aSSteve Longerbeam priv = chan->priv; 1778cd98e85aSSteve Longerbeam 1779cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: ctx %p run %p\n", __func__, 1780cd98e85aSSteve Longerbeam chan->ic_task, ctx, run); 1781cd98e85aSSteve Longerbeam 1782cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&run->list); 1783cd98e85aSSteve Longerbeam 1784cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1785cd98e85aSSteve Longerbeam 1786cd98e85aSSteve Longerbeam if (ctx->aborting) { 1787cd98e85aSSteve Longerbeam ret = -EIO; 1788cd98e85aSSteve Longerbeam goto unlock; 1789cd98e85aSSteve Longerbeam } 1790cd98e85aSSteve Longerbeam 1791cd98e85aSSteve Longerbeam list_add_tail(&run->list, &chan->pending_q); 1792cd98e85aSSteve Longerbeam 1793cd98e85aSSteve Longerbeam if (!chan->current_run) { 1794cd98e85aSSteve Longerbeam ret = do_run(run); 1795cd98e85aSSteve Longerbeam if (ret) 1796cd98e85aSSteve Longerbeam chan->current_run = NULL; 1797cd98e85aSSteve Longerbeam } 1798cd98e85aSSteve Longerbeam unlock: 1799cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1800cd98e85aSSteve Longerbeam return ret; 1801cd98e85aSSteve Longerbeam } 1802cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_queue); 1803cd98e85aSSteve Longerbeam 1804cd98e85aSSteve Longerbeam /* Abort any active or pending conversions for this context */ 1805819bec35SSteve Longerbeam static void __ipu_image_convert_abort(struct ipu_image_convert_ctx *ctx) 1806cd98e85aSSteve Longerbeam { 1807cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1808cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1809cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run, *active_run, *tmp; 1810cd98e85aSSteve Longerbeam unsigned long flags; 1811cd98e85aSSteve Longerbeam int run_count, ret; 1812cd98e85aSSteve Longerbeam 1813cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1814cd98e85aSSteve Longerbeam 1815cd98e85aSSteve Longerbeam /* move all remaining pending runs in this context to done_q */ 1816cd98e85aSSteve Longerbeam list_for_each_entry_safe(run, tmp, &chan->pending_q, list) { 1817cd98e85aSSteve Longerbeam if (run->ctx != ctx) 1818cd98e85aSSteve Longerbeam continue; 1819cd98e85aSSteve Longerbeam run->status = -EIO; 1820cd98e85aSSteve Longerbeam list_move_tail(&run->list, &chan->done_q); 1821cd98e85aSSteve Longerbeam } 1822cd98e85aSSteve Longerbeam 1823cd98e85aSSteve Longerbeam run_count = get_run_count(ctx, &chan->done_q); 1824cd98e85aSSteve Longerbeam active_run = (chan->current_run && chan->current_run->ctx == ctx) ? 1825cd98e85aSSteve Longerbeam chan->current_run : NULL; 1826cd98e85aSSteve Longerbeam 1827aa60b261SSteve Longerbeam if (active_run) 1828aa60b261SSteve Longerbeam reinit_completion(&ctx->aborted); 1829aa60b261SSteve Longerbeam 1830819bec35SSteve Longerbeam ctx->aborting = true; 1831cd98e85aSSteve Longerbeam 1832cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1833cd98e85aSSteve Longerbeam 1834b288adadSSteve Longerbeam if (!run_count && !active_run) { 1835cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1836cd98e85aSSteve Longerbeam "%s: task %u: no abort needed for ctx %p\n", 1837cd98e85aSSteve Longerbeam __func__, chan->ic_task, ctx); 1838cd98e85aSSteve Longerbeam return; 1839cd98e85aSSteve Longerbeam } 1840cd98e85aSSteve Longerbeam 1841920340aeSSteve Longerbeam if (!active_run) { 1842920340aeSSteve Longerbeam empty_done_q(chan); 1843920340aeSSteve Longerbeam return; 1844920340aeSSteve Longerbeam } 1845920340aeSSteve Longerbeam 1846cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, 1847920340aeSSteve Longerbeam "%s: task %u: wait for completion: %d runs\n", 1848920340aeSSteve Longerbeam __func__, chan->ic_task, run_count); 1849cd98e85aSSteve Longerbeam 1850cd98e85aSSteve Longerbeam ret = wait_for_completion_timeout(&ctx->aborted, 1851cd98e85aSSteve Longerbeam msecs_to_jiffies(10000)); 1852cd98e85aSSteve Longerbeam if (ret == 0) { 1853cd98e85aSSteve Longerbeam dev_warn(priv->ipu->dev, "%s: timeout\n", __func__); 1854cd98e85aSSteve Longerbeam force_abort(ctx); 1855cd98e85aSSteve Longerbeam } 1856819bec35SSteve Longerbeam } 1857cd98e85aSSteve Longerbeam 1858819bec35SSteve Longerbeam void ipu_image_convert_abort(struct ipu_image_convert_ctx *ctx) 1859819bec35SSteve Longerbeam { 1860819bec35SSteve Longerbeam __ipu_image_convert_abort(ctx); 1861cd98e85aSSteve Longerbeam ctx->aborting = false; 1862cd98e85aSSteve Longerbeam } 1863cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_abort); 1864cd98e85aSSteve Longerbeam 1865cd98e85aSSteve Longerbeam /* Unprepare image conversion context */ 1866cd98e85aSSteve Longerbeam void ipu_image_convert_unprepare(struct ipu_image_convert_ctx *ctx) 1867cd98e85aSSteve Longerbeam { 1868cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = ctx->chan; 1869cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv = chan->priv; 1870cd98e85aSSteve Longerbeam unsigned long flags; 1871cd98e85aSSteve Longerbeam bool put_res; 1872cd98e85aSSteve Longerbeam 1873cd98e85aSSteve Longerbeam /* make sure no runs are hanging around */ 1874819bec35SSteve Longerbeam __ipu_image_convert_abort(ctx); 1875cd98e85aSSteve Longerbeam 1876cd98e85aSSteve Longerbeam dev_dbg(priv->ipu->dev, "%s: task %u: removing ctx %p\n", __func__, 1877cd98e85aSSteve Longerbeam chan->ic_task, ctx); 1878cd98e85aSSteve Longerbeam 1879cd98e85aSSteve Longerbeam spin_lock_irqsave(&chan->irqlock, flags); 1880cd98e85aSSteve Longerbeam 1881cd98e85aSSteve Longerbeam list_del(&ctx->list); 1882cd98e85aSSteve Longerbeam 1883cd98e85aSSteve Longerbeam put_res = list_empty(&chan->ctx_list); 1884cd98e85aSSteve Longerbeam 1885cd98e85aSSteve Longerbeam spin_unlock_irqrestore(&chan->irqlock, flags); 1886cd98e85aSSteve Longerbeam 1887cd98e85aSSteve Longerbeam if (put_res) 1888cd98e85aSSteve Longerbeam release_ipu_resources(chan); 1889cd98e85aSSteve Longerbeam 1890cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[1]); 1891cd98e85aSSteve Longerbeam free_dma_buf(priv, &ctx->rot_intermediate[0]); 1892cd98e85aSSteve Longerbeam 1893cd98e85aSSteve Longerbeam kfree(ctx); 1894cd98e85aSSteve Longerbeam } 1895cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_unprepare); 1896cd98e85aSSteve Longerbeam 1897cd98e85aSSteve Longerbeam /* 1898cd98e85aSSteve Longerbeam * "Canned" asynchronous single image conversion. Allocates and returns 1899cd98e85aSSteve Longerbeam * a new conversion run. On successful return the caller must free the 1900cd98e85aSSteve Longerbeam * run and call ipu_image_convert_unprepare() after conversion completes. 1901cd98e85aSSteve Longerbeam */ 1902cd98e85aSSteve Longerbeam struct ipu_image_convert_run * 1903cd98e85aSSteve Longerbeam ipu_image_convert(struct ipu_soc *ipu, enum ipu_ic_task ic_task, 1904cd98e85aSSteve Longerbeam struct ipu_image *in, struct ipu_image *out, 1905cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode, 1906cd98e85aSSteve Longerbeam ipu_image_convert_cb_t complete, 1907cd98e85aSSteve Longerbeam void *complete_context) 1908cd98e85aSSteve Longerbeam { 1909cd98e85aSSteve Longerbeam struct ipu_image_convert_ctx *ctx; 1910cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1911cd98e85aSSteve Longerbeam int ret; 1912cd98e85aSSteve Longerbeam 1913cd98e85aSSteve Longerbeam ctx = ipu_image_convert_prepare(ipu, ic_task, in, out, rot_mode, 1914cd98e85aSSteve Longerbeam complete, complete_context); 1915cd98e85aSSteve Longerbeam if (IS_ERR(ctx)) 19164ad3e92cSWei Yongjun return ERR_CAST(ctx); 1917cd98e85aSSteve Longerbeam 1918cd98e85aSSteve Longerbeam run = kzalloc(sizeof(*run), GFP_KERNEL); 1919cd98e85aSSteve Longerbeam if (!run) { 1920cd98e85aSSteve Longerbeam ipu_image_convert_unprepare(ctx); 1921cd98e85aSSteve Longerbeam return ERR_PTR(-ENOMEM); 1922cd98e85aSSteve Longerbeam } 1923cd98e85aSSteve Longerbeam 1924cd98e85aSSteve Longerbeam run->ctx = ctx; 1925cd98e85aSSteve Longerbeam run->in_phys = in->phys0; 1926cd98e85aSSteve Longerbeam run->out_phys = out->phys0; 1927cd98e85aSSteve Longerbeam 1928cd98e85aSSteve Longerbeam ret = ipu_image_convert_queue(run); 1929cd98e85aSSteve Longerbeam if (ret) { 1930cd98e85aSSteve Longerbeam ipu_image_convert_unprepare(ctx); 1931cd98e85aSSteve Longerbeam kfree(run); 1932cd98e85aSSteve Longerbeam return ERR_PTR(ret); 1933cd98e85aSSteve Longerbeam } 1934cd98e85aSSteve Longerbeam 1935cd98e85aSSteve Longerbeam return run; 1936cd98e85aSSteve Longerbeam } 1937cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert); 1938cd98e85aSSteve Longerbeam 1939cd98e85aSSteve Longerbeam /* "Canned" synchronous single image conversion */ 1940cd98e85aSSteve Longerbeam static void image_convert_sync_complete(struct ipu_image_convert_run *run, 1941cd98e85aSSteve Longerbeam void *data) 1942cd98e85aSSteve Longerbeam { 1943cd98e85aSSteve Longerbeam struct completion *comp = data; 1944cd98e85aSSteve Longerbeam 1945cd98e85aSSteve Longerbeam complete(comp); 1946cd98e85aSSteve Longerbeam } 1947cd98e85aSSteve Longerbeam 1948cd98e85aSSteve Longerbeam int ipu_image_convert_sync(struct ipu_soc *ipu, enum ipu_ic_task ic_task, 1949cd98e85aSSteve Longerbeam struct ipu_image *in, struct ipu_image *out, 1950cd98e85aSSteve Longerbeam enum ipu_rotate_mode rot_mode) 1951cd98e85aSSteve Longerbeam { 1952cd98e85aSSteve Longerbeam struct ipu_image_convert_run *run; 1953cd98e85aSSteve Longerbeam struct completion comp; 1954cd98e85aSSteve Longerbeam int ret; 1955cd98e85aSSteve Longerbeam 1956cd98e85aSSteve Longerbeam init_completion(&comp); 1957cd98e85aSSteve Longerbeam 1958cd98e85aSSteve Longerbeam run = ipu_image_convert(ipu, ic_task, in, out, rot_mode, 1959cd98e85aSSteve Longerbeam image_convert_sync_complete, &comp); 1960cd98e85aSSteve Longerbeam if (IS_ERR(run)) 1961cd98e85aSSteve Longerbeam return PTR_ERR(run); 1962cd98e85aSSteve Longerbeam 1963cd98e85aSSteve Longerbeam ret = wait_for_completion_timeout(&comp, msecs_to_jiffies(10000)); 1964cd98e85aSSteve Longerbeam ret = (ret == 0) ? -ETIMEDOUT : 0; 1965cd98e85aSSteve Longerbeam 1966cd98e85aSSteve Longerbeam ipu_image_convert_unprepare(run->ctx); 1967cd98e85aSSteve Longerbeam kfree(run); 1968cd98e85aSSteve Longerbeam 1969cd98e85aSSteve Longerbeam return ret; 1970cd98e85aSSteve Longerbeam } 1971cd98e85aSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_image_convert_sync); 1972cd98e85aSSteve Longerbeam 1973cd98e85aSSteve Longerbeam int ipu_image_convert_init(struct ipu_soc *ipu, struct device *dev) 1974cd98e85aSSteve Longerbeam { 1975cd98e85aSSteve Longerbeam struct ipu_image_convert_priv *priv; 1976cd98e85aSSteve Longerbeam int i; 1977cd98e85aSSteve Longerbeam 1978cd98e85aSSteve Longerbeam priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 1979cd98e85aSSteve Longerbeam if (!priv) 1980cd98e85aSSteve Longerbeam return -ENOMEM; 1981cd98e85aSSteve Longerbeam 1982cd98e85aSSteve Longerbeam ipu->image_convert_priv = priv; 1983cd98e85aSSteve Longerbeam priv->ipu = ipu; 1984cd98e85aSSteve Longerbeam 1985cd98e85aSSteve Longerbeam for (i = 0; i < IC_NUM_TASKS; i++) { 1986cd98e85aSSteve Longerbeam struct ipu_image_convert_chan *chan = &priv->chan[i]; 1987cd98e85aSSteve Longerbeam 1988cd98e85aSSteve Longerbeam chan->ic_task = i; 1989cd98e85aSSteve Longerbeam chan->priv = priv; 1990cd98e85aSSteve Longerbeam chan->dma_ch = &image_convert_dma_chan[i]; 1991cd98e85aSSteve Longerbeam chan->out_eof_irq = -1; 1992cd98e85aSSteve Longerbeam chan->rot_out_eof_irq = -1; 1993cd98e85aSSteve Longerbeam 1994cd98e85aSSteve Longerbeam spin_lock_init(&chan->irqlock); 1995cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&chan->ctx_list); 1996cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&chan->pending_q); 1997cd98e85aSSteve Longerbeam INIT_LIST_HEAD(&chan->done_q); 1998cd98e85aSSteve Longerbeam } 1999cd98e85aSSteve Longerbeam 2000cd98e85aSSteve Longerbeam return 0; 2001cd98e85aSSteve Longerbeam } 2002cd98e85aSSteve Longerbeam 2003cd98e85aSSteve Longerbeam void ipu_image_convert_exit(struct ipu_soc *ipu) 2004cd98e85aSSteve Longerbeam { 2005cd98e85aSSteve Longerbeam } 2006