1==================== 2 AMDGPU RAS Support 3==================== 4 5The AMDGPU RAS interfaces are exposed via sysfs (for informational queries) and 6debugfs (for error injection). 7 8RAS debugfs/sysfs Control and Error Injection Interfaces 9======================================================== 10 11.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c 12 :doc: AMDGPU RAS debugfs control interface 13 14RAS Reboot Behavior for Unrecoverable Errors 15============================================ 16 17.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c 18 :doc: AMDGPU RAS Reboot Behavior for Unrecoverable Errors 19 20RAS Error Count sysfs Interface 21=============================== 22 23.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c 24 :doc: AMDGPU RAS sysfs Error Count Interface 25 26RAS EEPROM debugfs Interface 27============================ 28 29.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c 30 :doc: AMDGPU RAS debugfs EEPROM table reset interface 31 32RAS VRAM Bad Pages sysfs Interface 33================================== 34 35.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c 36 :doc: AMDGPU RAS sysfs gpu_vram_bad_pages Interface 37 38Sample Code 39=========== 40Sample code for testing error injection can be found here: 41https://cgit.freedesktop.org/mesa/drm/tree/tests/amdgpu/ras_tests.c 42 43This is part of the libdrm amdgpu unit tests which cover several areas of the GPU. 44There are four sets of tests: 45 46RAS Basic Test 47 48The test verifies the RAS feature enabled status and makes sure the necessary sysfs and debugfs files 49are present. 50 51RAS Query Test 52 53This test checks the RAS availability and enablement status for each supported IP block as well as 54the error counts. 55 56RAS Inject Test 57 58This test injects errors for each IP. 59 60RAS Disable Test 61 62This test tests disabling of RAS features for each IP block. 63