63 lines
1.8 KiB
ReStructuredText
63 lines
1.8 KiB
ReStructuredText
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====================
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AMDGPU RAS Support
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====================
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The AMDGPU RAS interfaces are exposed via sysfs (for informational queries) and
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debugfs (for error injection).
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RAS debugfs/sysfs Control and Error Injection Interfaces
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========================================================
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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:doc: AMDGPU RAS debugfs control interface
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RAS Reboot Behavior for Unrecoverable Errors
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============================================
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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:doc: AMDGPU RAS Reboot Behavior for Unrecoverable Errors
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RAS Error Count sysfs Interface
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===============================
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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:doc: AMDGPU RAS sysfs Error Count Interface
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RAS EEPROM debugfs Interface
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============================
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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:doc: AMDGPU RAS debugfs EEPROM table reset interface
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RAS VRAM Bad Pages sysfs Interface
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==================================
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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:doc: AMDGPU RAS sysfs gpu_vram_bad_pages Interface
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Sample Code
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===========
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Sample code for testing error injection can be found here:
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https://cgit.freedesktop.org/mesa/drm/tree/tests/amdgpu/ras_tests.c
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This is part of the libdrm amdgpu unit tests which cover several areas of the GPU.
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There are four sets of tests:
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RAS Basic Test
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The test verifies the RAS feature enabled status and makes sure the necessary sysfs and debugfs files
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are present.
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RAS Query Test
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This test checks the RAS availability and enablement status for each supported IP block as well as
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the error counts.
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RAS Inject Test
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This test injects errors for each IP.
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RAS Disable Test
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This test tests disabling of RAS features for each IP block.
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