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From: "Alexandre Courbot" <acourbot@nvidia.com>
To: "Zhi Wang" <zhiw@nvidia.com>, <rust-for-linux@vger.kernel.org>,
	<linux-pci@vger.kernel.org>, <nouveau@lists.freedesktop.org>,
	<linux-kernel@vger.kernel.org>
Cc: <airlied@gmail.com>, <dakr@kernel.org>, <aliceryhl@google.com>,
	<bhelgaas@google.com>, <kwilczynski@kernel.org>,
	<ojeda@kernel.org>, <alex.gaynor@gmail.com>,
	<boqun.feng@gmail.com>, <gary@garyguo.net>,
	<bjorn3_gh@protonmail.com>, <lossin@kernel.org>,
	<a.hindborg@kernel.org>, <tmgross@umich.edu>,
	<markus.probst@posteo.de>, <helgaas@kernel.org>,
	<cjia@nvidia.com>, <alex@shazbot.org>, <smitra@nvidia.com>,
	<ankita@nvidia.com>, <aniketa@nvidia.com>, <kwankhede@nvidia.com>,
	<targupta@nvidia.com>, <acourbot@nvidia.com>,
	<joelagnelf@nvidia.com>, <jhubbard@nvidia.com>,
	<zhiwang@kernel.org>,
	"Nouveau" <nouveau-bounces@lists.freedesktop.org>
Subject: Re: [RFC 7/7] gpu: nova-core: load the scrubber ucode when vGPU support is enabled
Date: Mon, 15 Dec 2025 13:45:08 +0900	[thread overview]
Message-ID: <DEYILYUO4JUG.3BGBWBQSN2CCX@nvidia.com> (raw)
In-Reply-To: <20251206124208.305963-8-zhiw@nvidia.com>

On Sat Dec 6, 2025 at 9:42 PM JST, Zhi Wang wrote:
> To support the maximum vGPUs on the device that support vGPU, a larger
> WPR2 heap size is required. By setting the WPR2 heap size larger than 256MB
> the scrubber ucode image is required to scrub the FB memory before any
> other ucode image is executed.

So the trigger for running the scrubber ucode is not as much "vGPU is in
use" as it is "the WPR2 heap size is larger than 256MB".

Can we change the code to reflect that? We have the `fb_layout`
structure available at this time, so it should be easy IIUC.


      parent reply	other threads:[~2025-12-15  4:45 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-06 12:42 [RFC 0/7] gpu: nova-core: Enable booting GSP with vGPU enabled Zhi Wang
2025-12-06 12:42 ` [RFC 1/7] rust: pci: expose sriov_get_totalvfs() helper Zhi Wang
2025-12-07  7:12   ` Dirk Behme
2025-12-09  1:09     ` Miguel Ojeda
2025-12-09 14:22     ` Zhi Wang
2025-12-09  3:42   ` Alexandre Courbot
2025-12-10 11:31   ` Alexandre Courbot
2025-12-06 12:42 ` [RFC 2/7] [!UPSTREAM] rust: pci: support configuration space access Zhi Wang
2025-12-10 22:51   ` Ewan CHORYNSKI
2025-12-06 12:42 ` [RFC 3/7] gpu: nova-core: introduce vgpu_support module param Zhi Wang
2025-12-06 12:42 ` [RFC 4/7] gpu: nova-core: populate GSP_VF_INFO when vGPU is enabled Zhi Wang
2025-12-07  2:32   ` Joel Fernandes
2025-12-09 13:41     ` Zhi Wang
2025-12-11  8:36       ` Joel Fernandes
2025-12-12  0:16         ` John Hubbard
2025-12-12  0:29           ` Joel Fernandes
2025-12-10 14:27   ` Alexandre Courbot
2025-12-06 12:42 ` [RFC 5/7] gpu: nova-core: set RMSetSriovMode when NVIDIA " Zhi Wang
2025-12-07 15:55   ` Timur Tabi
2025-12-07 16:57     ` Joel Fernandes
2025-12-09 14:28       ` Zhi Wang
2025-12-15  4:28     ` Alexandre Courbot
2025-12-06 12:42 ` [RFC 6/7] gpu: nova-core: reserve a larger GSP WPR2 heap when " Zhi Wang
2025-12-15  4:35   ` Alexandre Courbot
2025-12-06 12:42 ` [RFC 7/7] gpu: nova-core: load the scrubber ucode when vGPU support " Zhi Wang
2025-12-07  2:26   ` Joel Fernandes
2025-12-09 14:05     ` Zhi Wang
2025-12-11  1:24       ` Joel Fernandes
2025-12-07  6:42   ` Dirk Behme
2025-12-15  4:45   ` Alexandre Courbot [this message]

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