cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

ras.rst (1795B)

      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.