162 lines
5.5 KiB
Markdown
162 lines
5.5 KiB
Markdown
## Overview
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The document covers procedures for installing the latest GPU and NPU drivers, and OpenCL and Hexagon SDKs.
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In order to use Hexagon NPU on Snapdragon Windows devices the underlying HTP Ops libraries (e.g libggml-htp-v73.so)
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must be included in the .cat file digitally signed with a trusted certificate.
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This document covers details on how to generate personal certificate files (.pfx) and how to configure the system
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to allow for test signatures (aka test-signing).
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## Install the latest Adreno OpenCL SDK
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Either use the trimmed down version (optimized for CI) from
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https://github.com/snapdragon-toolchain/opencl-sdk/releases/download/v2.3.2/adreno-opencl-sdk-v2.3.2-arm64-wos.tar.xz
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Or download the complete official version from
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https://softwarecenter.qualcomm.com/catalog/item/Adreno_OpenCL_SDK?version=2.3.2
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Unzip/untar the archive into
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```
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c:\Qualcomm\OpenCL_SDK\2.3.2
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```
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## Install the latest Hexagon SDK Community Edition
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Either use the trimmed down version (optimized for CI) from
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https://github.com/snapdragon-toolchain/hexagon-sdk/releases/download/v6.4.0.2/hexagon-sdk-v6.4.0.2-arm64-wos.tar.xz
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Or download the complete official version from
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https://softwarecenter.qualcomm.com/catalog/item/Hexagon_SDK?version=6.4.0.2
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Unzip/untar the archive into
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```
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c:\Qualcomm\Hexagon_SDK\6.4.0.2
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```
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## Install the latest Adreno GPU driver
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Download the driver from
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https://softwarecenter.qualcomm.com/catalog/item/Windows_Graphics_Driver
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After the automated installation and reboot please make sure that the GPU device shows up in the `Device Manager` (under 'Display Adapters`)
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## Install the latest Qualcomm NPU driver
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Download the driver from
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https://softwarecenter.qualcomm.com/catalog/item/Qualcomm_HND
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After the automated installation and reboot please make sure that the Hexagon NPU device shows up in the `Device Manager` (under `Neural Processors`).
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If the device is not available you can try installing all components (`qcnspmcdm8380`, `qcnspmcdm8380_ext`) manually.
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The components are extracted into
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```
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c:\QCDrivers\qcnspmcdm...
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```
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## Enable NPU driver test signatures
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Please note that the following steps are required only for the Hexagon NPU.
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Adreno GPU backend does not require test signatures.
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### Enable testsigning
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Use `bcdedit` to enable test-signing
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```
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> bcdedit /set TESTSIGNING ON
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```
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(Secure Boot may need to be disabled for this to work)
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Make sure test-signing is enabled after reboot
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```
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> bcdedit /enum
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...
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testsigning Yes
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...
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```
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For additional details see Microsoft guide at
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https://learn.microsoft.com/en-us/windows-hardware/drivers/install/the-testsigning-boot-configuration-option
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### Create personal certificate
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The tools required for this procedure are available as part of Windows SDK and Windows Driver Kit which should be
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installed as part of the MS Visual Studio.
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They are typically located at
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```
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c:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0
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```
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(replace 10.0.26100.0 with correct version).
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To create personal self-signed certificate run the following commands (either from cmd or power-shell):
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```
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> cd c:\Users\MyUser
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> mkdir Certs
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> cd Certs
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> makecert -r -pe -ss PrivateCertStore -n CN=GGML.HTP.v1 -eku 1.3.6.1.5.5.7.3.3 -sv ggml-htp-v1.pvk ggml-htp-v1.cer
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> pvk2pfx.exe -pvk ggml-htp-v1.pvk -spc ggml-htp-v1.cer -pfx ggml-htp-v1.pfx
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```
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(replace `MyUser` with your username).
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Add this certificate to `Trusted Root Certification Authorities` and `Trusted Publishers` stores.
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This can be done using `certlm` Certificate Manager tool.
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Right click on the certificate store, select `All Tasks -> Import` and follow the prompts to import the certificate from the
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PFX file you created above.
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For additional details see Microsoft guide at
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https://learn.microsoft.com/en-us/windows-hardware/drivers/install/introduction-to-test-signing
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Make sure to save the PFX file, you will need it for the build procedures.
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Please note that the same certificate can be used for signing any number of builds.
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## Build Hexagon backend with signed HTP ops libraries
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The overall Hexagon backend build procedure for Windows on Snapdragon is the same as for other platforms.
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However, additional settings are required for generating and signing HTP Ops libraries.
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```
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> $env:OPENCL_SDK_ROOT="C:\Qualcomm\OpenCL_SDK\2.3.2"
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> $env:HEXAGON_SDK_ROOT="C:\Qualcomm\Hexagon_SDK\6.4.0.2"
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> $env:HEXAGON_TOOLS_ROOT="C:\Qualcomm\Hexagon_SDK\6.4.0.2\tools\HEXAGON_Tools\19.0.04"
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> $env:HEXAGON_HTP_CERT="c:\Users\MyUsers\Certs\ggml-htp-v1.pfx"
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> $env:WINDOWS_SDK_BIN="C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\arm64"
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> cmake --preset arm64-windows-snapdragon -B build-wos
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...
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> cmake --install build-wos --prefix pkg-snapdragon
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```
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Once the build is complete HTP ops libraries will be installed like this
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```
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> dir pkg-snapdragon/lib
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...
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-a---- 1/22/2026 6:01 PM 187656 libggml-htp-v73.so
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-a---- 1/22/2026 6:01 PM 191752 libggml-htp-v75.so
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-a---- 1/22/2026 6:01 PM 187656 libggml-htp-v79.so
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-a---- 1/22/2026 6:01 PM 187656 libggml-htp-v81.so
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-a---- 1/22/2026 6:01 PM 4139 libggml-htp.cat
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```
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The .cat file, the signature and proper certicate installation can be verified with
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```
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> signtool.exe verify /v /pa .\pkg-snapdragon\lib\libggml-htp.cat
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Verifying: .\pkg-snapdragon\lib\libggml-htp.cat
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Signature Index: 0 (Primary Signature)
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Hash of file (sha256): 9820C664DA59D5EAE31DBB664127FCDAEF59CDC31502496BC567544EC2F401CF
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Signing Certificate Chain:
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Issued to: GGML.HTP.v1
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...
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Successfully verified: .\pkg-snapdragon\lib\libggml-htp.cat
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...
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```
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