On Mon, 16 Oct 2017 21:29:14 +0900 Magnus Damm <magnus.damm@xxxxxxxxx> wrote: > iommu/ipmmu-vmsa: r8a7795 support V5 > > [PATCH v5 01/09] iommu/ipmmu-vmsa: Introduce features, break out alias > [PATCH v5 02/09] iommu/ipmmu-vmsa: Add optional root device feature > [PATCH v5 03/09] iommu/ipmmu-vmsa: Enable multi context support > [PATCH v5 04/09] iommu/ipmmu-vmsa: Make use of IOMMU_OF_DECLARE() > [PATCH v5 05/09] iommu/ipmmu-vmsa: IPMMU device is 40-bit bus master > [PATCH v5 06/09] iommu/ipmmu-vmsa: Write IMCTR twice > [PATCH v5 07/09] iommu/ipmmu-vmsa: Make IMBUSCTR setup optional > [PATCH v5 08/09] iommu/ipmmu-vmsa: Allow two bit SL0 > [PATCH v5 09/09] iommu/ipmmu-vmsa: Hook up r8a7795 DT matching code > > This is V5 of r8a7795 IPMMU driver where the series has been rebased > and reworked to fit on next-20171013 that includes: > [PATCH v2 00/05] iommu/ipmmu-vmsa: 32-bit ARM update V2 > [PATCH] iommu/ipmmu-vmsa: Use iommu_device_sysfs_add()/remove() > > The major feature change is in patch 2/9 that now gets by without > using a local list of registered IPMMU devices and instead relies > on driver_for_each_device(). Thanks to Robin Murphy for his support. > > The DT binding for r8a7795 has been accepted for upstream merge > and this series implements support following such format: > > d4e42e7 iommu/ipmmu-vmsa: Add r8a7795 DT binding > > The r8a7795 IPMMU is almost register compatible with earlier devices > like r8a7790-r8a7794, however some bitfields have been shifted > slightly. On a grander scale topology has been added and interrupts > have been reworked. So now there are several "cache" IPMMU units > without interrupt that somehow communicate with IPMMU-MM that > is the only instance that supports interrupts. The code refers to > IPMMU-MM as a "root" device and the other ones as "leaf" nodes. > > Changes since V4: > - Rebased on top of [PATCH v2 00/05] iommu/ipmmu-vmsa: 32-bit ARM update V2 > - Reworked root device handling to make use of driver_for_each_device() > - Added deferred probing to make sure root device always is present > > Signed-off-by: Magnus Damm <damm+renesas@xxxxxxxxxxxxx> > --- > > Developed on top of next-20171013 > Also applies to renesas-drivers-2017-10-03-v4.14-rc3 > Tested on top of renesas-drivers on r8a7796-m3ulcb using /dev/ttySC1 > - [PATCH v4 0/3] iommu/ipmmu-vmsa: r8a7796 support V4 > - local /dev/ttySC1 enablement for testing purpose > - local DTS changes to hook up SYS-DMAC and IPMMU DS0, DS1 and MM > - local whitelist code to enable "e7310000.dma-controller" > > drivers/iommu/ipmmu-vmsa.c | 310 ++++++++++++++++++++++++++++++++++---------- > 1 file changed, 244 insertions(+), 66 deletions(-) Applied to iommu/ipmmu-vmsa for v4.15. Thanks, Alex
