59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
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/********************************************************************
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* This file includes most utilized functions for data structure
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* BitstreamManager
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*
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* Note: These functions are not generic enough so that they
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* should NOT be a member function!
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*******************************************************************/
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#include <algorithm>
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/* Headers from vtrutil library */
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#include "vtr_assert.h"
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#include "bitstream_manager_utils.h"
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/* begin namespace openfpga */
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namespace openfpga {
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/********************************************************************
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* Recursively find the hierarchy of a block of bitstream manager
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* Return a vector of the block ids, where the top-level block
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* locates in the head, while the leaf block locates in the tail
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* top, next, ... , block
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*******************************************************************/
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std::vector<ConfigBlockId> find_bitstream_manager_block_hierarchy(const BitstreamManager& bitstream_manager,
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const ConfigBlockId& block) {
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std::vector<ConfigBlockId> block_hierarchy;
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ConfigBlockId temp_block = block;
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/* Generate a tree of parent block */
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while (true == bitstream_manager.valid_block_id(temp_block)) {
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block_hierarchy.push_back(temp_block);
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/* Go to upper level */
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temp_block = bitstream_manager.block_parent(temp_block);
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}
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/* Reverse the vector, so that top block stay in the first */
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std::reverse(block_hierarchy.begin(), block_hierarchy.end());
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return block_hierarchy;
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}
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/********************************************************************
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* Find all the top-level blocks in a bitstream manager,
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* which have no parents
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*******************************************************************/
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std::vector<ConfigBlockId> find_bitstream_manager_top_blocks(const BitstreamManager& bitstream_manager) {
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std::vector<ConfigBlockId> top_blocks;
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for (const ConfigBlockId& blk : bitstream_manager.blocks()) {
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if (ConfigBlockId::INVALID() != bitstream_manager.block_parent(blk)) {
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continue;
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}
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top_blocks.push_back(blk);
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}
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return top_blocks;
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}
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} /* end namespace openfpga */
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