CONFIG_GCOV_PROFILE_AMDGPU: Enable GCOV profiling on amdgpu

General informations

The Linux kernel configuration item CONFIG_GCOV_PROFILE_AMDGPU:

• prompt: Enable GCOV profiling on amdgpu
• type: bool
• depends on: ( CONFIG_DRM_AMDGPU ) && ( CONFIG_GCOV_KERNEL )
• defined in drivers/gpu/drm/amd/amdgpu/Kconfig
• found in Linux kernels: 7.1-rc+HEAD

Help text

Enable GCOV profiling on the amdgpu driver for checking which functions/lines are executed during testing. This adds compiler instrumentation flags to all amdgpu source files, producing .gcda/.gcno coverage data accessible via debugfs.

This increases the amdgpu module size by ~50% and adds ~2-5% runtime overhead on GPU submission paths.

If unsure, say N.

Hardware

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The data is retrived from:

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• Linux Kernel Driver DataBase (LKDDb)

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