0001 ====================
0002 AMDGPU RAS Support
0003 ====================
0004
0005 The AMDGPU RAS interfaces are exposed via sysfs (for informational queries) and
0006 debugfs (for error injection).
0007
0008 RAS debugfs/sysfs Control and Error Injection Interfaces
0009 ========================================================
0010
0011 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
0012 :doc: AMDGPU RAS debugfs control interface
0013
0014 RAS Reboot Behavior for Unrecoverable Errors
0015 ============================================
0016
0017 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
0018 :doc: AMDGPU RAS Reboot Behavior for Unrecoverable Errors
0019
0020 RAS Error Count sysfs Interface
0021 ===============================
0022
0023 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
0024 :doc: AMDGPU RAS sysfs Error Count Interface
0025
0026 RAS EEPROM debugfs Interface
0027 ============================
0028
0029 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
0030 :doc: AMDGPU RAS debugfs EEPROM table reset interface
0031
0032 RAS VRAM Bad Pages sysfs Interface
0033 ==================================
0034
0035 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
0036 :doc: AMDGPU RAS sysfs gpu_vram_bad_pages Interface
0037
0038 Sample Code
0039 ===========
0040 Sample code for testing error injection can be found here:
0041 https://cgit.freedesktop.org/mesa/drm/tree/tests/amdgpu/ras_tests.c
0042
0043 This is part of the libdrm amdgpu unit tests which cover several areas of the GPU.
0044 There are four sets of tests:
0045
0046 RAS Basic Test
0047
0048 The test verifies the RAS feature enabled status and makes sure the necessary sysfs and debugfs files
0049 are present.
0050
0051 RAS Query Test
0052
0053 This test checks the RAS availability and enablement status for each supported IP block as well as
0054 the error counts.
0055
0056 RAS Inject Test
0057
0058 This test injects errors for each IP.
0059
0060 RAS Disable Test
0061
0062 This test tests disabling of RAS features for each IP block.
