linux-kernel - Re: [PATCH 3/6] nova-core: docs: Document vbios layout

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Message-ID: <74c540b50d9c9fa70689ef0f4451a126265d1715.camel@nvidia.com>
Date: Wed, 23 Apr 2025 23:12:57 +0000
From: Timur Tabi <ttabi@...dia.com>
To: "corbet@....net" <corbet@....net>, "tzimmermann@...e.de"
	<tzimmermann@...e.de>, "simona@...ll.ch" <simona@...ll.ch>,
	"airlied@...il.com" <airlied@...il.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "dakr@...nel.org" <dakr@...nel.org>, Joel
 Fernandes <joelagnelf@...dia.com>, "maarten.lankhorst@...ux.intel.com"
	<maarten.lankhorst@...ux.intel.com>, "mripard@...nel.org"
	<mripard@...nel.org>
CC: Shirish Baskaran <sbaskaran@...dia.com>, Alistair Popple
	<apopple@...dia.com>, John Hubbard <jhubbard@...dia.com>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	"nouveau@...ts.freedesktop.org" <nouveau@...ts.freedesktop.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>, Ben Skeggs
	<bskeggs@...dia.com>, Alexandre Courbot <acourbot@...dia.com>
Subject: Re: [PATCH 3/6] nova-core: docs: Document vbios layout

On Wed, 2025-04-23 at 18:53 -0400, Joel Fernandes wrote:
> +This document describes the layout of the VBIOS image which is a series of concatenated
> +images in the ROM of the GPU. The VBIOS is mirrored onto the BAR 0 space and is read
> +by both Boot ROM firmware (also known as IFR or init-from-rom firmware) on the GPU to
> +boot strap various microcontrollers (PMU, SEC, GSP) with critical initialization before
> +the driver loads, as well as by the nova-core driver in the kernel to boot the GSP.

You might want to add a link to this page:

https://download.nvidia.com/open-gpu-doc/BIOS-Information-Table/1/BIOS-Information-Table.html