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Message-ID: <20240717163627.43423-1-robdclark@gmail.com>
Date: Wed, 17 Jul 2024 09:36:20 -0700
From: Rob Clark <robdclark@...il.com>
To: dri-devel@...ts.freedesktop.org
Cc: linux-arm-msm@...r.kernel.org,
freedreno@...ts.freedesktop.org,
iommu@...ts.linux.dev,
Will Deacon <will@...nel.org>,
Rob Clark <robdclark@...omium.org>,
Boris Brezillon <boris.brezillon@...labora.com>,
Jason Gunthorpe <jgg@...pe.ca>,
Joao Martins <joao.m.martins@...cle.com>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
linux-arm-kernel@...ts.infradead.org (moderated list:ARM SMMU DRIVERS),
linux-kernel@...r.kernel.org (open list),
linux-pm@...r.kernel.org (open list:SUSPEND TO RAM),
Marijn Suijten <marijn.suijten@...ainline.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Robin Murphy <robin.murphy@....com>,
Sean Paul <sean@...rly.run>,
Steven Price <steven.price@....com>
Subject: [PATCH v6 0/2] io-pgtable-arm + drm/msm: Extend iova fault debugging
From: Rob Clark <robdclark@...omium.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.
v4: Actually wire up the callback
v5: Drop the callback approach
v6: Make walk-data struct pgtable specific and rename
io_pgtable_walk_data to arm_lpae_io_pgtable_walk_data
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 | 9 +++++++
drivers/gpu/drm/msm/msm_gpu.h | 8 ++++++
drivers/gpu/drm/msm/msm_iommu.c | 22 +++++++++++++++
drivers/gpu/drm/msm/msm_mmu.h | 3 ++-
drivers/iommu/io-pgtable-arm.c | 36 ++++++++++++++++++-------
include/linux/io-pgtable.h | 17 ++++++++++++
7 files changed, 95 insertions(+), 10 deletions(-)
--
2.45.2
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