On Mon, Aug 10, 2020 at 04:26:57PM -0600, Jordan Crouse wrote: > Add a new implementation hook to allow the implementation specific code > to tweek the context bank configuration just before it gets written. > The first user will be the Adreno GPU implementation to turn on > SCTLR.HUPCF to ensure that a page fault doesn't terminating pending > transactions. Doing so could hang the GPU if one of the terminated > transactions is a CP read. > > Signed-off-by: Jordan Crouse <jcrouse@xxxxxxxxxxxxxx> > --- > > drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 16 ++++++++++++++++ > drivers/iommu/arm/arm-smmu/arm-smmu.c | 21 +++++++++++++-------- > drivers/iommu/arm/arm-smmu/arm-smmu.h | 5 +++++ > 3 files changed, 34 insertions(+), 8 deletions(-) We already have ->init_context(), so I'd prefer to use that instead of adding another callback. Could we stick a couple of fields in smmu_domain->cfg (e.g. sctlr_set, sctlr_clr) and handle those a bit like we do for the asid/vmid on cavium implementations? Will
