From: David Matlack <dmatlack@google.com>
To: Rubin Du <rubind@nvidia.com>
Cc: Alex Williamson <alex@shazbot.org>, Shuah Khan <shuah@kernel.org>,
kvm@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v14 4/4] vfio: selftests: Add NVIDIA Falcon driver for DMA testing
Date: Thu, 18 Jun 2026 20:43:24 +0000 [thread overview]
Message-ID: <ajRYbI-4ZczC_V7B@google.com> (raw)
In-Reply-To: <20260609232855.3808971-5-rubind@nvidia.com>
On 2026-06-09 04:28 PM, Rubin Du wrote:
> Add a new VFIO PCI driver for NVIDIA GPUs that enables DMA testing
> via the Falcon (Fast Logic Controller) microcontrollers. This driver
> extracts and adapts the DMA test functionality from NVIDIA's
> gpu-admin-tools project and integrates it into the existing VFIO
> selftest framework.
>
> Falcons are general-purpose microcontrollers present on NVIDIA GPUs
> that can perform DMA operations between system memory and device
> memory. By leveraging Falcon DMA, this driver allows NVIDIA GPUs to
> be tested alongside Intel IOAT and DSA devices using the same
> selftest infrastructure.
>
> The driver is named 'nv_falcon' to reflect that it specifically
> controls the Falcon microcontrollers for DMA operations, rather
> than exposing general GPU functionality.
>
> Reference implementation:
> https://github.com/NVIDIA/gpu-admin-tools
>
> Signed-off-by: Alex Williamson <alex.williamson@nvidia.com>
> Signed-off-by: Rubin Du <rubind@nvidia.com>
Acked-by: David Matlack <dmatlack@google.com>
prev parent reply other threads:[~2026-06-18 20:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-09 23:28 [PATCH v14 0/4] vfio: selftest: Add NVIDIA GPU Falcon DMA test driver Rubin Du
2026-06-09 23:28 ` [PATCH v14 1/4] vfio: selftests: Add memcpy chunking to vfio_pci_driver_memcpy() Rubin Du
2026-06-09 23:28 ` [PATCH v14 2/4] vfio: selftests: Add generic PCI command register helpers Rubin Du
2026-06-09 23:28 ` [PATCH v14 3/4] vfio: selftests: Allow drivers without send_msi() support Rubin Du
2026-06-09 23:28 ` [PATCH v14 4/4] vfio: selftests: Add NVIDIA Falcon driver for DMA testing Rubin Du
2026-06-09 23:39 ` sashiko-bot
2026-06-18 20:43 ` David Matlack [this message]
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