linux - Documentation/gpu/amdgpu/ras.rst

62 lines · 1.8 KiB

1	====================
2	AMDGPU RAS Support
3	====================
4
5	The AMDGPU RAS interfaces are exposed via sysfs (for informational queries) and
6	debugfs (for error injection).
7
8	RAS 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
14	RAS 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
20	RAS 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
26	RAS 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
32	RAS 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
38	Sample Code
39	===========
40	Sample code for testing error injection can be found here:
41	https://cgit.freedesktop.org/mesa/drm/tree/tests/amdgpu/ras_tests.c
42
43	This is part of the libdrm amdgpu unit tests which cover several areas of the GPU.
44	There are four sets of tests:
45
46	RAS Basic Test
47
48	The test verifies the RAS feature enabled status and makes sure the necessary sysfs and debugfs files
49	are present.
50
51	RAS Query Test
52
53	This test checks the RAS availability and enablement status for each supported IP block as well as
54	the error counts.
55
56	RAS Inject Test
57
58	This test injects errors for each IP.
59
60	RAS Disable Test
61
62	This test tests disabling of RAS features for each IP block.