drivers/staging/media/ipu3/ipu3-css-fw.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (C) 2018 Intel Corporation
   3
   4 #include <linux/device.h>
   5 #include <linux/firmware.h>
   6 #include <linux/mm.h>
   7 #include <linux/slab.h>
   8
   9 #include "ipu3-css.h"
  10 #include "ipu3-css-fw.h"
  11 #include "ipu3-dmamap.h"
  12
  13 static void imgu_css_fw_show_binary(struct device *dev, struct imgu_fw_info *bi,
  14                                     const char *name)
  15 {
  16         unsigned int i;
  17
  18         dev_dbg(dev, "found firmware binary type %i size %i name %s\n",
  19                 bi->type, bi->blob.size, name);
  20         if (bi->type != IMGU_FW_ISP_FIRMWARE)
  21                 return;
  22
  23         dev_dbg(dev, "    id %i mode %i bds 0x%x veceven %i/%i out_pins %i\n",
  24                 bi->info.isp.sp.id, bi->info.isp.sp.pipeline.mode,
  25                 bi->info.isp.sp.bds.supported_bds_factors,
  26                 bi->info.isp.sp.enable.vf_veceven,
  27                 bi->info.isp.sp.vf_dec.is_variable,
  28                 bi->info.isp.num_output_pins);
  29
  30         dev_dbg(dev, "    input (%i,%i)-(%i,%i) formats %s%s%s\n",
  31                 bi->info.isp.sp.input.min_width,
  32                 bi->info.isp.sp.input.min_height,
  33                 bi->info.isp.sp.input.max_width,
  34                 bi->info.isp.sp.input.max_height,
  35                 bi->info.isp.sp.enable.input_yuv ? "yuv420 " : "",
  36                 bi->info.isp.sp.enable.input_feeder ||
  37                 bi->info.isp.sp.enable.input_raw ? "raw8 raw10 " : "",
  38                 bi->info.isp.sp.enable.input_raw ? "raw12" : "");
  39
  40         dev_dbg(dev, "    internal (%i,%i)\n",
  41                 bi->info.isp.sp.internal.max_width,
  42                 bi->info.isp.sp.internal.max_height);
  43
  44         dev_dbg(dev, "    output (%i,%i)-(%i,%i) formats",
  45                 bi->info.isp.sp.output.min_width,
  46                 bi->info.isp.sp.output.min_height,
  47                 bi->info.isp.sp.output.max_width,
  48                 bi->info.isp.sp.output.max_height);
  49         for (i = 0; i < bi->info.isp.num_output_formats; i++)
  50                 dev_dbg(dev, " %i", bi->info.isp.output_formats[i]);
  51         dev_dbg(dev, " vf");
  52         for (i = 0; i < bi->info.isp.num_vf_formats; i++)
  53                 dev_dbg(dev, " %i", bi->info.isp.vf_formats[i]);
  54         dev_dbg(dev, "\n");
  55 }
  56
  57 unsigned int imgu_css_fw_obgrid_size(const struct imgu_fw_info *bi)
  58 {
  59         unsigned int width = DIV_ROUND_UP(bi->info.isp.sp.internal.max_width,
  60                                           IMGU_OBGRID_TILE_SIZE * 2) + 1;
  61         unsigned int height = DIV_ROUND_UP(bi->info.isp.sp.internal.max_height,
  62                                            IMGU_OBGRID_TILE_SIZE * 2) + 1;
  63         unsigned int obgrid_size;
  64
  65         width = ALIGN(width, IPU3_UAPI_ISP_VEC_ELEMS / 4);
  66         obgrid_size = PAGE_ALIGN(width * height *
  67                                  sizeof(struct ipu3_uapi_obgrid_param)) *
  68                                  bi->info.isp.sp.iterator.num_stripes;
  69         return obgrid_size;
  70 }
  71
  72 void *imgu_css_fw_pipeline_params(struct imgu_css *css, unsigned int pipe,
  73                                   enum imgu_abi_param_class cls,
  74                                   enum imgu_abi_memories mem,
  75                                   struct imgu_fw_isp_parameter *par,
  76                                   size_t par_size, void *binary_params)
  77 {
  78         struct imgu_fw_info *bi =
  79                 &css->fwp->binary_header[css->pipes[pipe].bindex];
  80
  81         if (par->offset + par->size >
  82             bi->info.isp.sp.mem_initializers.params[cls][mem].size)
  83                 return NULL;
  84
  85         if (par->size != par_size)
  86                 pr_warn("parameter size doesn't match defined size\n");
  87
  88         if (par->size < par_size)
  89                 return NULL;
  90
  91         return binary_params + par->offset;
  92 }
  93
  94 void imgu_css_fw_cleanup(struct imgu_css *css)
  95 {
  96         struct imgu_device *imgu = dev_get_drvdata(css->dev);
  97
  98         if (css->binary) {
  99                 unsigned int i;
 100
 101                 for (i = 0; i < css->fwp->file_header.binary_nr; i++)
 102                         imgu_dmamap_free(imgu, &css->binary[i]);
 103                 kfree(css->binary);
 104         }
 105         if (css->fw)
 106                 release_firmware(css->fw);
 107
 108         css->binary = NULL;
 109         css->fw = NULL;
 110 }
 111
 112 int imgu_css_fw_init(struct imgu_css *css)
 113 {
 114         static const u32 BLOCK_MAX = 65536;
 115         struct imgu_device *imgu = dev_get_drvdata(css->dev);
 116         struct device *dev = css->dev;
 117         unsigned int i, j, binary_nr;
 118         int r;
 119
 120         r = reject_firmware(&css->fw, IMGU_FW_NAME, css->dev);
 121         if (r)
 122                 return r;
 123
 124         /* Check and display fw header info */
 125
 126         css->fwp = (struct imgu_fw_header *)css->fw->data;
 127         if (css->fw->size < struct_size(css->fwp, binary_header, 1) ||
 128             css->fwp->file_header.h_size != sizeof(struct imgu_fw_bi_file_h))
 129                 goto bad_fw;
 130         if (struct_size(css->fwp, binary_header,
 131                         css->fwp->file_header.binary_nr) > css->fw->size)
 132                 goto bad_fw;
 133
 134         dev_info(dev, "loaded firmware version %.64s, %u binaries, %zu bytes\n",
 135                  css->fwp->file_header.version, css->fwp->file_header.binary_nr,
 136                  css->fw->size);
 137
 138         /* Validate and display info on fw binaries */
 139
 140         binary_nr = css->fwp->file_header.binary_nr;
 141
 142         css->fw_bl = -1;
 143         css->fw_sp[0] = -1;
 144         css->fw_sp[1] = -1;
 145
 146         for (i = 0; i < binary_nr; i++) {
 147                 struct imgu_fw_info *bi = &css->fwp->binary_header[i];
 148                 const char *name = (void *)css->fwp + bi->blob.prog_name_offset;
 149                 size_t len;
 150
 151                 if (bi->blob.prog_name_offset >= css->fw->size)
 152                         goto bad_fw;
 153                 len = strnlen(name, css->fw->size - bi->blob.prog_name_offset);
 154                 if (len + 1 > css->fw->size - bi->blob.prog_name_offset ||
 155                     len + 1 >= IMGU_ABI_MAX_BINARY_NAME)
 156                         goto bad_fw;
 157
 158                 if (bi->blob.size != bi->blob.text_size + bi->blob.icache_size
 159                     + bi->blob.data_size + bi->blob.padding_size)
 160                         goto bad_fw;
 161                 if (bi->blob.offset + bi->blob.size > css->fw->size)
 162                         goto bad_fw;
 163
 164                 if (bi->type == IMGU_FW_BOOTLOADER_FIRMWARE) {
 165                         css->fw_bl = i;
 166                         if (bi->info.bl.sw_state >= css->iomem_length ||
 167                             bi->info.bl.num_dma_cmds >= css->iomem_length ||
 168                             bi->info.bl.dma_cmd_list >= css->iomem_length)
 169                                 goto bad_fw;
 170                 }
 171                 if (bi->type == IMGU_FW_SP_FIRMWARE ||
 172                     bi->type == IMGU_FW_SP1_FIRMWARE) {
 173                         css->fw_sp[bi->type == IMGU_FW_SP_FIRMWARE ? 0 : 1] = i;
 174                         if (bi->info.sp.per_frame_data >= css->iomem_length ||
 175                             bi->info.sp.init_dmem_data >= css->iomem_length ||
 176                             bi->info.sp.host_sp_queue >= css->iomem_length ||
 177                             bi->info.sp.isp_started >= css->iomem_length ||
 178                             bi->info.sp.sw_state >= css->iomem_length ||
 179                             bi->info.sp.sleep_mode >= css->iomem_length ||
 180                             bi->info.sp.invalidate_tlb >= css->iomem_length ||
 181                             bi->info.sp.host_sp_com >= css->iomem_length ||
 182                             bi->info.sp.output + 12 >= css->iomem_length ||
 183                             bi->info.sp.host_sp_queues_initialized >=
 184                             css->iomem_length)
 185                                 goto bad_fw;
 186                 }
 187                 if (bi->type != IMGU_FW_ISP_FIRMWARE)
 188                         continue;
 189
 190                 if (bi->info.isp.sp.pipeline.mode >= IPU3_CSS_PIPE_ID_NUM)
 191                         goto bad_fw;
 192
 193                 if (bi->info.isp.sp.iterator.num_stripes >
 194                     IPU3_UAPI_MAX_STRIPES)
 195                         goto bad_fw;
 196
 197                 if (bi->info.isp.num_vf_formats > IMGU_ABI_FRAME_FORMAT_NUM ||
 198                     bi->info.isp.num_output_formats > IMGU_ABI_FRAME_FORMAT_NUM)
 199                         goto bad_fw;
 200
 201                 for (j = 0; j < bi->info.isp.num_output_formats; j++)
 202                         if (bi->info.isp.output_formats[j] >=
 203                             IMGU_ABI_FRAME_FORMAT_NUM)
 204                                 goto bad_fw;
 205                 for (j = 0; j < bi->info.isp.num_vf_formats; j++)
 206                         if (bi->info.isp.vf_formats[j] >=
 207                             IMGU_ABI_FRAME_FORMAT_NUM)
 208                                 goto bad_fw;
 209
 210                 if (bi->info.isp.sp.block.block_width <= 0 ||
 211                     bi->info.isp.sp.block.block_width > BLOCK_MAX ||
 212                     bi->info.isp.sp.block.output_block_height <= 0 ||
 213                     bi->info.isp.sp.block.output_block_height > BLOCK_MAX)
 214                         goto bad_fw;
 215
 216                 if (bi->blob.memory_offsets.offsets[IMGU_ABI_PARAM_CLASS_PARAM]
 217                     + sizeof(struct imgu_fw_param_memory_offsets) >
 218                     css->fw->size ||
 219                     bi->blob.memory_offsets.offsets[IMGU_ABI_PARAM_CLASS_CONFIG]
 220                     + sizeof(struct imgu_fw_config_memory_offsets) >
 221                     css->fw->size ||
 222                     bi->blob.memory_offsets.offsets[IMGU_ABI_PARAM_CLASS_STATE]
 223                     + sizeof(struct imgu_fw_state_memory_offsets) >
 224                     css->fw->size)
 225                         goto bad_fw;
 226
 227                 imgu_css_fw_show_binary(dev, bi, name);
 228         }
 229
 230         if (css->fw_bl == -1 || css->fw_sp[0] == -1 || css->fw_sp[1] == -1)
 231                 goto bad_fw;
 232
 233         /* Allocate and map fw binaries into IMGU */
 234
 235         css->binary = kcalloc(binary_nr, sizeof(*css->binary), GFP_KERNEL);
 236         if (!css->binary) {
 237                 r = -ENOMEM;
 238                 goto error_out;
 239         }
 240
 241         for (i = 0; i < css->fwp->file_header.binary_nr; i++) {
 242                 struct imgu_fw_info *bi = &css->fwp->binary_header[i];
 243                 void *blob = (void *)css->fwp + bi->blob.offset;
 244                 size_t size = bi->blob.size;
 245
 246                 if (!imgu_dmamap_alloc(imgu, &css->binary[i], size)) {
 247                         r = -ENOMEM;
 248                         goto error_out;
 249                 }
 250                 memcpy(css->binary[i].vaddr, blob, size);
 251         }
 252
 253         return 0;
 254
 255 bad_fw:
 256         dev_err(dev, "invalid firmware binary, size %u\n", (int)css->fw->size);
 257         r = -ENODEV;
 258
 259 error_out:
 260         imgu_css_fw_cleanup(css);
 261         return r;
 262 }