Re: [PATCH v2 0/7] Host1x/VIC support on Tegra264

Thierry Reding <[email protected]> Thu, 16 Jul 2026 20:54:02 +0200
Newsgroups	org.kernel.vger.linux-tegra,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel
Message-ID	<alkooiOtlIF-OZy4@orome>
On Mon, Jun 22, 2026 at 03:57:37PM +0900, Mikko Perttunen wrote:
> Hello everyone,
> 
> this series adds support for Host1x and VIC on Tegra264 SoCs.
> The Host1x side is not very interesting, just adding the usual register
> definitions and other information. One thing of note is that multimedia
> engines apart from VIC have moved away from Host1x on this generation.
> 
> On the VIC side, there is a bit more of a change, as the VIC Falcon is
> now RISC-V based. Unlike NVDEC, VIC is still "externally booted", so
> the boot sequence is very similar to before.
> 
> host1x uapi-test[1] has been updated for Tegra264. Necessary headers for 
> constructing VIC jobs have been added to open-gpu-doc[2].
> 
> Patches 1 and 2 add new compatible strings to Host1x and VIC device tree
> bindings.
> 
> Patch 3 fixes the context device device tree parsing code to handle
> iommu-map entries with length more than 1.
> 
> Patch 4 adds Tegra264 support to the Host1x driver.
> 
> Patches 5 and 6 add Tegra264 support to the VIC driver.
> 
> Patch 7 adds Host1x and VIC nodes to the Tegra264 device tree.
> 
> Thank you,
> Mikko
> 
> [1] https://github.com/cyndis/uapi-test
> [2] https://github.com/NVIDIA/open-gpu-doc/blob/master/classes/video/clceb6.h
>     https://github.com/NVIDIA/open-gpu-doc/blob/master/classes/video/vic_ceb6_types.h
> 
> ---
> Changes in v2:
> - Updated dt-bindings changes to be chip-specific
> - Link to v1: https://patch.msgid.link/[email protected]
> 
> ---
> Mikko Perttunen (6):
>       dt-bindings: display: tegra: Changes to support Tegra264
>       dt-bindings: display: tegra: Add Tegra264 compatible for VIC
>       gpu: host1x: Correctly parse linear ranges of context devices
>       drm/tegra: falcon: Add support for RISC-V external boot
>       drm/tegra: vic: Add Tegra264 support
>       arm64: tegra: Add Host1x and VIC on Tegra264
> 
> Santosh BS (1):
>       gpu: host1x: Add Tegra264 support
> 
>  .../display/tegra/nvidia,tegra124-vic.yaml         |   1 +
>  .../display/tegra/nvidia,tegra20-host1x.yaml       |  20 ++-
>  arch/arm64/boot/dts/nvidia/tegra264.dtsi           |  63 +++++++
>  drivers/gpu/drm/tegra/drm.c                        |   1 +
>  drivers/gpu/drm/tegra/falcon.c                     |  66 ++++++--
>  drivers/gpu/drm/tegra/falcon.h                     |  23 +++
>  drivers/gpu/drm/tegra/vic.c                        |  95 ++++++++---
>  drivers/gpu/drm/tegra/vic.h                        |   9 +-
>  drivers/gpu/host1x/Makefile                        |   3 +-
>  drivers/gpu/host1x/context.c                       |  13 +-
>  drivers/gpu/host1x/dev.c                           |  41 +++++
>  drivers/gpu/host1x/hw/cdma_hw.c                    |  12 +-
>  drivers/gpu/host1x/hw/host1x10.c                   |  33 ++++
>  drivers/gpu/host1x/hw/host1x10.h                   |  15 ++
>  drivers/gpu/host1x/hw/host1x10_hardware.h          |  21 +++
>  drivers/gpu/host1x/hw/hw_host1x10_common.h         |   6 +
>  drivers/gpu/host1x/hw/hw_host1x10_hypervisor.h     |  10 ++
>  drivers/gpu/host1x/hw/hw_host1x10_uclass.h         | 181 +++++++++++++++++++++
>  drivers/gpu/host1x/hw/hw_host1x10_vm.h             |  36 ++++
>  19 files changed, 601 insertions(+), 48 deletions(-)
> ---
> base-commit: 4549871118cf616eecdd2d939f78e3b9e1dddc48
> change-id: 20260313-t264-host1x-c97171fdde77

Patches 1-6 applied to drm-misc-next. I'll pick up patch 7 into the
Tegra tree because it looks like there will be a conflict.

Thanks,
Thierry
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