[PATCH 0/6] drm/amdgpu: Improve retry fault handling

["Timur Kristóf" <timur.kristof@gmail.com>]

Fix some issues regarding retry fault handling,
such as enabling the retry fault interrupt (necessary
for retry faults to work) and such.

Improve retry faults on Navi 3 dGPUs by enabling
the filter CAM, which can filter the repeated page
fault interrupts that happen when retry faults are
enabled, making the handling more efficient.

With this series, the kernel is able to mitigate
most page faults on Navi 3 without causing a hang
and without a need to reset the GPU, when the
amdgpu.noretry=0 module parameter is set.

Timur Kristóf (6):
  drm/amdgpu: Use gmc->noretry instead of amdgpu_noretry directly
  drm/amdgpu/gfxhub: Enable retry fault interrupts when needed
  drm/amdgpu/gfxhub: Program CRASH_ON_*_FAULT bits to 0 as needed
  drm/amdgpu/gmc: Don't compare page fault timestamps with other
    interrupts
  drm/amdgpu/ih: Add retry_cam_ack IH function pointer
  drm/amdgpu: Enable retry CAM on Navi 3 dGPUs

 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c     |  7 +++++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h     |  1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h      |  1 +
 drivers/gpu/drm/amd/amdgpu/gfxhub_v11_5_0.c | 17 ++++++++++-------
 drivers/gpu/drm/amd/amdgpu/gfxhub_v12_0.c   | 17 ++++++++++-------
 drivers/gpu/drm/amd/amdgpu/gfxhub_v12_1.c   | 19 +++++++++++--------
 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c    | 15 +++++++++------
 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c    | 15 +++++++++------
 drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c    | 15 +++++++++------
 drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c    | 15 +++++++++------
 drivers/gpu/drm/amd/amdgpu/gfxhub_v3_0.c    | 17 ++++++++++-------
 drivers/gpu/drm/amd/amdgpu/gfxhub_v3_0_3.c  | 17 ++++++++++-------
 drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c      |  5 ++++-
 drivers/gpu/drm/amd/amdgpu/ih_v6_0.c        | 18 +++++++++++++++++-
 drivers/gpu/drm/amd/amdgpu/ih_v7_0.c        |  6 ++++++
 drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c     |  2 +-
 drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c   |  2 +-
 drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_2.c   |  2 +-
 drivers/gpu/drm/amd/amdgpu/mmhub_v3_3.c     |  2 +-
 drivers/gpu/drm/amd/amdgpu/mmhub_v4_1_0.c   |  2 +-
 drivers/gpu/drm/amd/amdgpu/mmhub_v4_2_0.c   |  2 +-
 drivers/gpu/drm/amd/amdgpu/vega20_ih.c      |  8 +++++++-
 22 files changed, 134 insertions(+), 71 deletions(-)

-- 
2.54.0