Re: [PATCH] iommu/arm-smmu: Clear global and context bank fault status registers

2013-09-30 Thread Andreas Herrmann
On Mon, Sep 30, 2013 at 02:30:06PM -0400, Will Deacon wrote: > On Mon, Sep 30, 2013 at 06:17:16PM +0100, Andreas Herrmann wrote: > > On Mon, Sep 30, 2013 at 12:06:15PM -0400, Will Deacon wrote: > > > On Mon, Sep 30, 2013 at 02:56:21PM +0100, Andreas Herrmann wrote: > > > > > > > > After reset thes

Re: [PATCH] iommu/arm-smmu: Clear global and context bank fault status registers

2013-09-30 Thread Will Deacon
On Mon, Sep 30, 2013 at 06:17:16PM +0100, Andreas Herrmann wrote: > On Mon, Sep 30, 2013 at 12:06:15PM -0400, Will Deacon wrote: > > On Mon, Sep 30, 2013 at 02:56:21PM +0100, Andreas Herrmann wrote: > > > > > > After reset these registers have unknown values. > > > This might cause problems when e

Re: [PATCH] iommu/arm-smmu: Clear global and context bank fault status registers

2013-09-30 Thread Andreas Herrmann
On Mon, Sep 30, 2013 at 12:06:15PM -0400, Will Deacon wrote: > On Mon, Sep 30, 2013 at 02:56:21PM +0100, Andreas Herrmann wrote: > > > > After reset these registers have unknown values. > > This might cause problems when evaluating SMMU_GFSR and/or SMMU_CB_FSR > > in handlers for combined interrup

Re: [PATCH] iommu/arm-smmu: Clear global and context bank fault status registers

2013-09-30 Thread Will Deacon
On Mon, Sep 30, 2013 at 02:56:21PM +0100, Andreas Herrmann wrote: > > After reset these registers have unknown values. > This might cause problems when evaluating SMMU_GFSR and/or SMMU_CB_FSR > in handlers for combined interrupts. > > Signed-off-by: Andreas Herrmann > --- > drivers/iommu/arm-sm

[PATCH] iommu/arm-smmu: Clear global and context bank fault status registers

2013-09-30 Thread Andreas Herrmann
After reset these registers have unknown values. This might cause problems when evaluating SMMU_GFSR and/or SMMU_CB_FSR in handlers for combined interrupts. Signed-off-by: Andreas Herrmann --- drivers/iommu/arm-smmu.c | 27 --- 1 file changed, 20 insertions(+), 7 delet