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elfloader changes for shim patching for aie4 #8355

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merged 2 commits into from
Sep 4, 2024
Merged

elfloader changes for shim patching for aie4 #8355

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b17f3af
elfloader changes for shim patching for npu3
HimanshuChoudhary-Xilinx Aug 16, 2024
0d033ba
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HimanshuChoudhary-Xilinx Aug 28, 2024
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17 changes: 17 additions & 0 deletions src/runtime_src/core/common/api/xrt_module.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,7 @@ struct patcher
scalar_32bit_kind = 3,
control_packet_48 = 4, // patching scheme needed by firmware to patch control packet
shim_dma_48 = 5, // patching scheme needed by firmware to patch instruction buffer
shim_dma_aie4_base_addr_symbol_kind = 6, // patching scheme needed by AIE4 firmware
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Please update the ELF spce accordingly.

unknown_symbol_kind = 8
};

Expand Down Expand Up @@ -182,6 +183,18 @@ struct patcher
bd_data_ptr[8] = (bd_data_ptr[8] & 0xFFFFFE00) | ((base_address >> 48) & 0x1FF); // NOLINT
}

void
patch57_aie4(uint32_t* bd_data_ptr, uint64_t patch)
{
uint64_t base_address =
((static_cast<uint64_t>(bd_data_ptr[0]) & 0x1FFFFFF) << 32) | // NOLINT
bd_data_ptr[1];

base_address += patch;
bd_data_ptr[1] = (uint32_t)(base_address & 0xFFFFFFFF); // NOLINT
bd_data_ptr[0] = (bd_data_ptr[0] & 0xFE000000) | ((base_address >> 32) & 0x1FFFFFF);// NOLINT
}

void
patch_ctrl48(uint32_t* bd_data_ptr, uint64_t patch)
{
Expand Down Expand Up @@ -226,6 +239,10 @@ struct patcher
// new_value is a bo address
patch57(bd_data_ptr, new_value + item.offset_to_base_bo_addr);
break;
case symbol_type::shim_dma_aie4_base_addr_symbol_kind:
// new_value is a bo address
patch57_aie4(bd_data_ptr, new_value + item.offset_to_base_bo_addr);
break;
case symbol_type::control_packet_48:
// new_value is a bo address
patch_ctrl48(bd_data_ptr, new_value + item.offset_to_base_bo_addr);
Expand Down
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