linux-kernel - Re: [PATCH v7 00/20] Imagination Technologies PowerVR DRM driver

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Date:   Thu, 19 Oct 2023 13:12:45 +0300
From:   Maxim Kochetkov <fido_max@...ox.ru>
To:     Sarah Walker <sarah.walker@...tec.com>,
        dri-devel@...ts.freedesktop.org
Cc:     frank.binns@...tec.com, donald.robson@...tec.com,
        boris.brezillon@...labora.com, faith.ekstrand@...labora.com,
        airlied@...il.com, daniel@...ll.ch,
        maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
        tzimmermann@...e.de, afd@...com, hns@...delico.com,
        matthew.brost@...el.com, christian.koenig@....com,
        luben.tuikov@....com, dakr@...hat.com,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        devicetree@...r.kernel.org, corbet@....net,
        linux-doc@...r.kernel.org
Subject: Re: [PATCH v7 00/20] Imagination Technologies PowerVR DRM driver



On 10.10.2023 16:37, Sarah Walker wrote:
> This patch series adds the initial DRM driver for Imagination Technologies PowerVR
> GPUs, starting with those based on our Rogue architecture. It's worth pointing
> out that this is a new driver, written from the ground up, rather than a
> refactored version of our existing downstream driver (pvrsrvkm).
> 
> This new DRM driver supports:
> - GEM shmem allocations
> - dma-buf / PRIME
> - Per-context userspace managed virtual address space
> - DRM sync objects (binary and timeline)
> - Power management suspend / resume
> - GPU job submission (geometry, fragment, compute, transfer)
> - META firmware processor
> - MIPS firmware processor
> - GPU hang detection and recovery
> 
> Currently our main focus is on the AXE-1-16M GPU. Testing so far has been done
> using a TI SK-AM62 board (AXE-1-16M GPU). Firmware for the AXE-1-16M can be
> found here:
> https://gitlab.freedesktop.org/frankbinns/linux-firmware/-/tree/powervr

And what about another PowerVR (rogue-based) GPU? There are a lot of 
different models of rogue GPU in existed SoCs. New driver uses v3 
firmware, but vendors uses v1/v2 firmwares. Who will provide 
firmware/source code v3 for all the others models?