Re: [PATCH v2 0/6] Host1x and VIC support for Tegra186

[Daniel Vetter]

On Tue, Sep 05, 2017 at 11:43:00AM +0300, Mikko Perttunen wrote:
> Hi,
> 
> not many changes in v2:
> 
> Changed address-cells and size-cells for the Host1x device tree node
> to have value 1, since all subdevices fit in the lower 4G. Also dropped
> the incorrect change about this from the dt-bindings patch. Thanks to
> Rob for pointing this out.
> 
> Mikko
> 
> Notes for v1:
> 
> Hi everyone,
> 
> this series adds basic support for the Host1x channel engine and the
> VIC 2d compositor unit on Tegra186. The first three patches do the
> required device tree changes, the fourth patch updates the device tree
> binding documentation, and the two remaining patches add the actual
> implementation, almost all of which is in Host1x itself.
> 
> The Tegra186 Host1x is a relatively large update over previous
> generations, which can be seen in the diffstat. The biggest change is
> that Host1x is now contains separate hypervisor and vm register
> apertures to support virtualization at the hardware level. This driver,
> however, currently assumes that this instance of Linux is the sole
> operating system having access to the hardware.
> 
> This combined with increased numbers of supported channels and
> syncpoints have caused a number of register space changes that are
> responsible for most of the updated code.
> 
> The series has been tested on the Jetson TX1 (T210) and TX2 (T186)
> using the host1x_test test suite available at
> 
> http://github.com/cyndis/host1x_test
> 
> The series itself is available at
> 
> http://github.com/cyndis/linux, branch host1x-t186-1

Since this is new hw support, is there also open source userspace using
all this?

Thanks, Daniel

> 
> Cheers,
> Mikko
> 
> Mikko Perttunen (6):
>   arm64: tegra: Add #power-domain-cells for BPMP
>   arm64: tegra: Add host1x on Tegra186
>   arm64: tegra: Add VIC on Tegra186
>   dt-bindings: host1x: Add Tegra186 information
>   gpu: host1x: Add Tegra186 support
>   drm/tegra: Add Tegra186 support for VIC
> 
>  .../display/tegra/nvidia,tegra20-host1x.txt        |   4 +
>  arch/arm64/boot/dts/nvidia/tegra186.dtsi           |  31 ++++
>  drivers/gpu/drm/tegra/drm.c                        |   1 +
>  drivers/gpu/drm/tegra/vic.c                        |  10 ++
>  drivers/gpu/host1x/Makefile                        |   3 +-
>  drivers/gpu/host1x/dev.c                           |  60 ++++++-
>  drivers/gpu/host1x/dev.h                           |   4 +
>  drivers/gpu/host1x/hw/cdma_hw.c                    |  49 +++---
>  drivers/gpu/host1x/hw/debug_hw.c                   | 137 +---------------
>  drivers/gpu/host1x/hw/debug_hw_1x01.c              | 154 ++++++++++++++++++
>  drivers/gpu/host1x/hw/debug_hw_1x06.c              | 133 +++++++++++++++
>  drivers/gpu/host1x/hw/host1x01.c                   |   2 +
>  drivers/gpu/host1x/hw/host1x02.c                   |   2 +
>  drivers/gpu/host1x/hw/host1x04.c                   |   2 +
>  drivers/gpu/host1x/hw/host1x05.c                   |   2 +
>  drivers/gpu/host1x/hw/host1x06.c                   |  44 +++++
>  drivers/gpu/host1x/hw/host1x06.h                   |  26 +++
>  drivers/gpu/host1x/hw/host1x06_hardware.h          | 142 ++++++++++++++++
>  drivers/gpu/host1x/hw/hw_host1x06_hypervisor.h     |  32 ++++
>  drivers/gpu/host1x/hw/hw_host1x06_uclass.h         | 181 +++++++++++++++++++++
>  drivers/gpu/host1x/hw/hw_host1x06_vm.h             |  47 ++++++
>  drivers/gpu/host1x/hw/intr_hw.c                    |  29 ++--
>  22 files changed, 926 insertions(+), 169 deletions(-)
>  create mode 100644 drivers/gpu/host1x/hw/debug_hw_1x01.c
>  create mode 100644 drivers/gpu/host1x/hw/debug_hw_1x06.c
>  create mode 100644 drivers/gpu/host1x/hw/host1x06.c
>  create mode 100644 drivers/gpu/host1x/hw/host1x06.h
>  create mode 100644 drivers/gpu/host1x/hw/host1x06_hardware.h
>  create mode 100644 drivers/gpu/host1x/hw/hw_host1x06_hypervisor.h
>  create mode 100644 drivers/gpu/host1x/hw/hw_host1x06_uclass.h
>  create mode 100644 drivers/gpu/host1x/hw/hw_host1x06_vm.h
> 
> -- 
> 2.14.1
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch