[PATCH v3 0/2] io-pgtable-arm + drm/msm: Extend iova fault debugging

Rob Clark
2024-05-22T21:50:25Z

This series extends io-pgtable-arm with a method to retrieve the page
table entries traversed in the process of address translation, and then
beefs up drm/msm gpu devcore dump to include this (and additional info)
in the devcore dump.

This is a respin of https://patchwork.freedesktop.org/series/94968/
(minus a patch that was already merged)

v2: Fix an armv7/32b build error in the last patch
v3: Incorperate Will Deacon's suggestion to make the interface
callback based.

Rob Clark (2):
iommu/io-pgtable-arm: Add way to debug pgtable walk
drm/msm: Extend gpu devcore dumps with pgtbl info

drivers/gpu/drm/msm/adreno/adreno_gpu.c | 10 +++++
drivers/gpu/drm/msm/msm_gpu.c | 22 +++++++++++
drivers/gpu/drm/msm/msm_gpu.h | 8 ++++
drivers/gpu/drm/msm/msm_iommu.c | 18 +++++++++
drivers/gpu/drm/msm/msm_mmu.h | 5 ++-
drivers/iommu/io-pgtable-arm.c | 50 ++++++++++++++++++++-----
include/linux/io-pgtable.h | 4 ++
7 files changed, 107 insertions(+), 10 deletions(-)

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2.45.1