Re: [Freedreno] [PATCH v5 25/32] iommu/mtk: Migrate to aggregate driver

2022-01-14 Thread Yong Wu
On Fri, 2022-01-14 at 15:30 -0600, Stephen Boyd wrote: > Quoting Yong Wu (2022-01-14 01:06:31) > > On Wed, 2022-01-12 at 20:25 -0800, Stephen Boyd wrote: > > > > > > > > [2.654526] [ cut here ] > > > > [2.6555

Re: [Freedreno] [PATCH v5 25/32] iommu/mtk: Migrate to aggregate driver

2022-01-14 Thread Yong Wu
On Wed, 2022-01-12 at 20:25 -0800, Stephen Boyd wrote: > > > > [2.654526] [ cut here ] > > [2.68] refcount_t: addition on 0; use-after-free. > > > > After this patch, the aggregate_driver flow looks ok. But our > > driver > > still aborts like this: > > > > [

Re: [Freedreno] [PATCH v5 25/32] iommu/mtk: Migrate to aggregate driver

2022-01-12 Thread Yong Wu
On Tue, 2022-01-11 at 16:27 -0800, Stephen Boyd wrote: > Quoting Yong Wu (2022-01-11 04:22:23) > > Hi Stephen, > > > > Thanks for helping update here. > > > > On Thu, 2022-01-06 at 13:45 -0800, Stephen Boyd wrote: > > > Use an aggregate driver instead

Re: [Freedreno] [PATCH v5 25/32] iommu/mtk: Migrate to aggregate driver

2022-01-11 Thread Yong Wu
he aggregate device. > > Cc: Yong Wu > Cc: Joerg Roedel > Cc: Will Deacon > Cc: Daniel Vetter > Cc: "Rafael J. Wysocki" > Cc: Rob Clark > Cc: Russell King > Cc: Saravana Kannan > Signed-off-by: Stephen Boyd When I test this on mt8195 which have two