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<a href="https://gitlab.rtems.org/mez3n">mazen Adel</a>
<a href="https://gitlab.rtems.org/rtems/rtos/rtems/-/work_items/5633#note_156479">commented</a>:
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">We currently have a working TLSF implementation tested on both 32-bit xilinx_zynq_a9_qemu and 64-bit riscv/rv64imafdc.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">However not all the old first-fit APIs are supported, this stems from the design difference and that the old implementation has a lot of very specific functions.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Currently the TLSF allocator supports 2 sets of functions.</p>
<ol dir="auto" style="text-align: initial; margin: 0px 0px 1rem; padding: 0;">
<li style="margin-top: 0px; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">What I would call the classic interface functions those are the functions that it inherited from the original TLSF implementation.</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">RTEMS interface functions: Those were implemented in an effort to provide an interface between RTEMS heap API and the actual implementation of the heap (required for modular heap support).</li>
</ol>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The classic interface list:</p>
<ul dir="auto" style="text-align: initial; list-style-type: disc; margin: 0px 0px 1rem; padding: 0;">
<li style="margin-top: 0px; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Control_size()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Align_size()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Block_size_min()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Block_size_max()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Pool_overhead()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Allocation_overhead()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Create()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Create_with_pool()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Destroy()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Get_pool()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Add_pool()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Remove_pool()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Allocate()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Allocate_aligned()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Free()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Reallocate()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Get_block_size()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Walk_pool()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Check()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_Tlsf_Check_pool()</li>
</ul>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The Current implemented TLSF RTEMS interface functions list:</p>
<ul dir="auto" style="text-align: initial; list-style-type: disc; margin: 0px 0px 1rem; padding: 0;">
<li style="margin-top: 0px; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Initialize()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Allocate_aligned_with_boundary()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Free()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Size_of_alloc_area()</li>
</ul>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The interface functions that need to be supported to have the same exact set as first-fit</p>
<ul dir="auto" style="text-align: initial; list-style-type: disc; margin: 0px 0px 1rem; padding: 0;">
<li style="margin-top: 0px; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Walk()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Iterate()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Greedy_allocate()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Greedy_allocate_all_except_largest()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Greedy_free()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Get_information()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Get_free_information()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Resize_block()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Block_allocate()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Extend()</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">_Heap_TLSF_Get_first_and_last_block()</li>
</ul>
<p dir="auto" style="color: #3a383f; margin: 0px;" align="initial">Some of them are more important than the others and some are similar in name only to the ones implemented by the TLSF classic interface.</p>
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