5 The AMDGPU RAS interfaces are exposed via sysfs (for informational queries) and
6 debugfs (for error injection).
8 RAS debugfs/sysfs Control and Error Injection Interfaces
9 ========================================================
11 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
12 :doc: AMDGPU RAS debugfs control interface
14 RAS Reboot Behavior for Unrecoverable Errors
15 ============================================
17 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
18 :doc: AMDGPU RAS Reboot Behavior for Unrecoverable Errors
20 RAS Error Count sysfs Interface
21 ===============================
23 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
24 :doc: AMDGPU RAS sysfs Error Count Interface
26 RAS EEPROM debugfs Interface
27 ============================
29 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
30 :doc: AMDGPU RAS debugfs EEPROM table reset interface
32 RAS VRAM Bad Pages sysfs Interface
33 ==================================
35 .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
36 :doc: AMDGPU RAS sysfs gpu_vram_bad_pages Interface
40 Sample code for testing error injection can be found here:
41 https://cgit.freedesktop.org/mesa/drm/tree/tests/amdgpu/ras_tests.c
43 This is part of the libdrm amdgpu unit tests which cover several areas of the GPU.
44 There are four sets of tests:
48 The test verifies the RAS feature enabled status and makes sure the necessary sysfs and debugfs files
53 This test checks the RAS availability and enablement status for each supported IP block as well as
58 This test injects errors for each IP.
62 This test tests disabling of RAS features for each IP block.