Messages in this thread | | | Date | Fri, 3 Jun 2022 11:14:51 -0400 | From | Brian Masney <> | Subject | Re: [PATCH 5/6] iommu/qcom: Index contexts by asid number to allow asid 0 |
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On Fri, May 27, 2022 at 11:29:00PM +0200, Konrad Dybcio wrote: > From: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> > > This driver was indexing the contexts by asid-1, which is probably > done under the assumption that the first ASID is always 1. > > Unfortunately this is not entirely true: at least in the MSM8956 > and MSM8976 GPU IOMMU, the gpu_user context's ASID number is zero. > To allow using an asid number of zero, stop indexing the contexts > by asid-1 and rather index them by asid. > > Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> > Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> > Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
msm8974 will need this as well.
Reviewed-by: Brian Masney <bmasney@redhat.com>
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