[PATCH 0/5] BAD GPU retirement policy by total bad pages

[Guchun Chen]

The series is to enable the feature of GPU RMA(Return Merchandise
Authorization) which is trigged when bad pages detected by RAS ECC
exceed the threshold value.

When the saved bad pages written to eeprom reach the threshold,
one ras recovery will be issued immediately and the recovery will
fail to tell user that the GPU is BAD and needs to be retired for
further check.

During bootup, similar BAD GPU check is conducted as well when
eeprom get initialized, and it will break boot up for user's
awareness.

User could set bad_page_threshold=0 when probing amdgpu driver to
disable this feature to bring up GPU, and reset eeprom later.

Guchun Chen (5):
  drm/amdgpu: add bad page count threshold in module parameter
  drm/amdgpu: validate bad page threshold in ras
  drm/amdgpu: conduct bad gpu check during bootup/reset
  drm/amdgpu: restore ras flags when user resets eeprom
  drm/amdgpu: calculate actual size instead of hardcode size

 drivers/gpu/drm/amd/amdgpu/amdgpu.h           |  1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c    | 21 +++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c       | 11 +++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c       | 70 ++++++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h       | 19 +++-
 .../gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c    | 98 ++++++++++++++++++-
 .../gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.h    |  8 +-
 7 files changed, 211 insertions(+), 17 deletions(-)

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2.17.1