diff options
Diffstat (limited to 'drivers/media/platform/allegro-dvt/allegro-core.c')
| -rw-r--r-- | drivers/media/platform/allegro-dvt/allegro-core.c | 83 |
1 files changed, 76 insertions, 7 deletions
diff --git a/drivers/media/platform/allegro-dvt/allegro-core.c b/drivers/media/platform/allegro-dvt/allegro-core.c index 3deece8176eb..cb42b6e3d85a 100644 --- a/drivers/media/platform/allegro-dvt/allegro-core.c +++ b/drivers/media/platform/allegro-dvt/allegro-core.c @@ -129,6 +129,13 @@ struct allegro_mbox { struct mutex lock; }; +struct allegro_encoder_buffer { + unsigned int size; + unsigned int color_depth; + unsigned int num_cores; + unsigned int clk_rate; +}; + struct allegro_dev { struct v4l2_device v4l2_dev; struct video_device video_dev; @@ -148,6 +155,8 @@ struct allegro_dev { const struct fw_info *fw_info; struct allegro_buffer firmware; struct allegro_buffer suballocator; + bool has_encoder_buffer; + struct allegro_encoder_buffer encoder_buffer; struct completion init_complete; bool initialized; @@ -930,6 +939,52 @@ out: kfree(msg); } +static int allegro_encoder_buffer_init(struct allegro_dev *dev, + struct allegro_encoder_buffer *buffer) +{ + int err; + struct regmap *settings = dev->settings; + unsigned int supports_10_bit; + unsigned int memory_depth; + unsigned int num_cores; + unsigned int color_depth; + unsigned long clk_rate; + + /* We don't support the encoder buffer pre Firmware version 2019.2 */ + if (dev->fw_info->mailbox_version < MCU_MSG_VERSION_2019_2) + return -ENODEV; + + if (!settings) + return -EINVAL; + + err = regmap_read(settings, VCU_ENC_COLOR_DEPTH, &supports_10_bit); + if (err < 0) + return err; + err = regmap_read(settings, VCU_MEMORY_DEPTH, &memory_depth); + if (err < 0) + return err; + err = regmap_read(settings, VCU_NUM_CORE, &num_cores); + if (err < 0) + return err; + + clk_rate = clk_get_rate(dev->clk_core); + if (clk_rate == 0) + return -EINVAL; + + color_depth = supports_10_bit ? 10 : 8; + /* The firmware expects the encoder buffer size in bits. */ + buffer->size = color_depth * 32 * memory_depth; + buffer->color_depth = color_depth; + buffer->num_cores = num_cores; + buffer->clk_rate = clk_rate; + + v4l2_dbg(1, debug, &dev->v4l2_dev, + "using %d bits encoder buffer with %d-bit color depth\n", + buffer->size, color_depth); + + return 0; +} + static void allegro_mcu_send_init(struct allegro_dev *dev, dma_addr_t suballoc_dma, size_t suballoc_size) { @@ -943,10 +998,17 @@ static void allegro_mcu_send_init(struct allegro_dev *dev, msg.suballoc_dma = to_mcu_addr(dev, suballoc_dma); msg.suballoc_size = to_mcu_size(dev, suballoc_size); - /* disable L2 cache */ - msg.l2_cache[0] = -1; - msg.l2_cache[1] = -1; - msg.l2_cache[2] = -1; + if (dev->has_encoder_buffer) { + msg.encoder_buffer_size = dev->encoder_buffer.size; + msg.encoder_buffer_color_depth = dev->encoder_buffer.color_depth; + msg.num_cores = dev->encoder_buffer.num_cores; + msg.clk_rate = dev->encoder_buffer.clk_rate; + } else { + msg.encoder_buffer_size = -1; + msg.encoder_buffer_color_depth = -1; + msg.num_cores = -1; + msg.clk_rate = -1; + } allegro_mbox_send(dev->mbox_command, &msg); } @@ -1193,9 +1255,8 @@ static int fill_create_channel_param(struct allegro_channel *channel, param->max_transfo_depth_intra = channel->max_transfo_depth_intra; param->max_transfo_depth_inter = channel->max_transfo_depth_inter; - param->prefetch_auto = 0; - param->prefetch_mem_offset = 0; - param->prefetch_mem_size = 0; + param->encoder_buffer_enabled = channel->dev->has_encoder_buffer; + param->encoder_buffer_offset = 0; param->rate_control_mode = channel->frame_rc_enable ? v4l2_bitrate_mode_to_mcu_mode(bitrate_mode) : 0; @@ -1320,6 +1381,7 @@ static int allegro_mcu_send_encode_frame(struct allegro_dev *dev, u64 src_handle) { struct mcu_msg_encode_frame msg; + bool use_encoder_buffer = channel->dev->has_encoder_buffer; memset(&msg, 0, sizeof(msg)); @@ -1328,6 +1390,8 @@ static int allegro_mcu_send_encode_frame(struct allegro_dev *dev, msg.channel_id = channel->mcu_channel_id; msg.encoding_options = AL_OPT_FORCE_LOAD; + if (use_encoder_buffer) + msg.encoding_options |= AL_OPT_USE_L2; msg.pps_qp = 26; /* qp are relative to 26 */ msg.user_param = 0; /* copied to mcu_msg_encode_frame_response */ /* src_handle is copied to mcu_msg_encode_frame_response */ @@ -3522,6 +3586,11 @@ static int allegro_mcu_hw_init(struct allegro_dev *dev, return -EIO; } + err = allegro_encoder_buffer_init(dev, &dev->encoder_buffer); + dev->has_encoder_buffer = (err == 0); + if (!dev->has_encoder_buffer) + v4l2_info(&dev->v4l2_dev, "encoder buffer not available\n"); + allegro_mcu_enable_interrupts(dev); /* The mcu sends INIT after reset. */ |