[PATCH v3 0/2] io-pgtable-arm + drm/msm: Extend iova fault debugging
Rob Clark
robdclark at gmail.com
Wed May 22 21:50:03 UTC 2024
From: Rob Clark <robdclark at chromium.org>
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(-)
--
2.45.1
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