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msm: kgsl: Check for mmu pagefault before recovery
Check whether there is a pagefault before running recovery.
If recovery runs before the bottom pagefault handler runs
then there could be a pending pagefault at end of recovery that
can stall the IOMMU. With the IOMMU stalled the GPU would only
read back zeroes even after recovery.
CRs-Fixed: 642562
Change-Id: I78fb225b2ee57e87ac6ebd1f2c9bca18aa81d942
Signed-off-by:
Shubhraprakash Das <sadas@codeaurora.org>
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- drivers/gpu/msm/adreno_dispatch.c 2 additions, 0 deletionsdrivers/gpu/msm/adreno_dispatch.c
- drivers/gpu/msm/kgsl_iommu.c 118 additions, 10 deletionsdrivers/gpu/msm/kgsl_iommu.c
- drivers/gpu/msm/kgsl_iommu.h 2 additions, 1 deletiondrivers/gpu/msm/kgsl_iommu.h
- drivers/gpu/msm/kgsl_mmu.h 17 additions, 0 deletionsdrivers/gpu/msm/kgsl_mmu.h
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