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   1 /**
   2  * Copyright (c) 2024 Hailo Technologies Ltd. All rights reserved.
   3  * Distributed under the MIT license (https://opensource.org/licenses/MIT)
   4 **/
   5 /**
   6  * @file ddr_action_list_buffer_builder.hpp
   7  * @brief Class used to build the action list sent to the firmware through DDR.
   8  **/
   9 #ifndef _HAILO_DDR_ACTION_LIST_BUFFER_BUILDER_HPP_
  10 #define _HAILO_DDR_ACTION_LIST_BUFFER_BUILDER_HPP_
  11
  12 #include "hailo/hailort.h"
  13 #include "context_switch_defs.h"
  14 #include "core_op/resource_manager/action_list_buffer_builder/action_list_buffer_builder.hpp"
  15 #include "vdma/memory/continuous_buffer.hpp"
  16
  17 #define DDR_ACTION_LIST_ENV_VAR         ("HAILO_DDR_ACTION_LIST")
  18 #define DDR_ACTION_LIST_ENV_VAR_VALUE   ("1")
  19
  20 namespace hailort
  21 {
  22
  23 class DDRActionListBufferBuilder : public ActionListBufferBuilder {
  24 public:
  25     DDRActionListBufferBuilder(vdma::ContinuousBuffer &&buffer);
  26     virtual ~DDRActionListBufferBuilder() = default;
  27     static Expected<std::shared_ptr<DDRActionListBufferBuilder>> create(size_t num_contexts, HailoRTDriver &driver);
  28
  29     virtual hailo_status write_action(MemoryView action, CONTROL_PROTOCOL__context_switch_context_type_t context_type,
  30         bool is_new_context, bool last_action_buffer_in_context) override;
  31
  32     virtual uint64_t get_mapped_buffer_dma_address() const override;
  33 private:
  34     vdma::ContinuousBuffer m_action_list_buffer;
  35     // TODO: HRT-12512 : Can remove this check when / if continuous buffer comes from designated region
  36     static bool verify_dma_addr(vdma::ContinuousBuffer &buffer);
  37     size_t m_write_offset;
  38     CONTROL_PROTOCOL__context_switch_context_info_chunk_t m_current_context_info;
  39 };
  40
  41 } /* namespace hailort */
  42
  43 #endif /* _HAILO_DDR_ACTION_LIST_BUFFER_BUILDER_HPP_ */