From: Danilo Krummrich <dakr@kernel.org>
To: Alistair Popple <apopple@nvidia.com>
Cc: rust-for-linux@vger.kernel.org, dri-devel@lists.freedesktop.org,
acourbot@nvidia.com, "Miguel Ojeda" <ojeda@kernel.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"John Hubbard" <jhubbard@nvidia.com>,
"Joel Fernandes" <joelagnelf@nvidia.com>,
"Timur Tabi" <ttabi@nvidia.com>,
linux-kernel@vger.kernel.org, nouveau@lists.freedesktop.org
Subject: Re: [PATCH v3 01/13] gpu: nova-core: Set correct DMA mask
Date: Tue, 30 Sep 2025 15:29:41 +0200 [thread overview]
Message-ID: <94bbd268-efbe-4ff6-ba09-e6254709d981@kernel.org> (raw)
In-Reply-To: <20250930131648.411720-2-apopple@nvidia.com>
On 9/30/25 3:16 PM, Alistair Popple wrote:
> + // SAFETY: No DMA allocations have been made yet
> + unsafe { pdev.dma_set_mask_and_coherent(DmaMask::new::<47>())? };
I think you forgot to derive the value from the relevant sources, i.e. physical
bus, DMA controller and MMU capabilities.
I assume not all GPU architectures / generations have the exact same capabilities?
next prev parent reply other threads:[~2025-09-30 13:29 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-30 13:16 [PATCH v3 00/13] gpu: nova-core: Boot GSP to RISC-V active Alistair Popple
2025-09-30 13:16 ` [PATCH v3 01/13] gpu: nova-core: Set correct DMA mask Alistair Popple
2025-09-30 13:29 ` Danilo Krummrich [this message]
2025-10-01 1:42 ` Alistair Popple
2025-10-01 1:53 ` John Hubbard
2025-09-30 13:16 ` [PATCH v3 02/13] gpu: nova-core: Create initial Gsp Alistair Popple
2025-09-30 13:16 ` [PATCH v3 03/13] gpu: nova-core: gsp: Create wpr metadata Alistair Popple
2025-09-30 13:16 ` [PATCH v3 04/13] gpu: nova-core: Add a slice-buffer (sbuffer) datastructure Alistair Popple
2025-09-30 13:16 ` [PATCH v3 05/13] gpu: nova-core: Add GSP command queue bindings Alistair Popple
2025-09-30 13:33 ` Danilo Krummrich
2025-09-30 13:16 ` [PATCH v3 06/13] gpu: nova-core: gsp: Add GSP command queue handling Alistair Popple
2025-09-30 13:16 ` [PATCH v3 07/13] gpu: nova-core: gsp: Create rmargs Alistair Popple
2025-09-30 13:16 ` [PATCH v3 08/13] gpu: nova-core: Add bindings and accessors for GspSystemInfo Alistair Popple
2025-10-02 13:49 ` Alexandre Courbot
2025-10-02 23:38 ` Alistair Popple
2025-10-03 0:56 ` Alexandre Courbot
2025-10-03 16:34 ` Benno Lossin
2025-10-03 17:25 ` Janne Grunau
2025-10-03 17:59 ` Benno Lossin
2025-09-30 13:16 ` [PATCH v3 09/13] gpu: nova-core: Add bindings for the GSP RM registry tables Alistair Popple
2025-09-30 13:16 ` [PATCH v3 10/13] gpu: nova-core: gsp: Create RM registry and sysinfo commands Alistair Popple
2025-10-01 16:46 ` Timur Tabi
2025-09-30 13:16 ` [PATCH v3 11/13] nova-core: falcon: Add support to check if RISC-V is active Alistair Popple
2025-09-30 17:17 ` Timur Tabi
2025-09-30 13:16 ` [PATCH v3 12/13] nova-core: falcon: Add support to write firmware version Alistair Popple
2025-09-30 13:16 ` [PATCH v3 13/13] nova-core: gsp: Boot GSP Alistair Popple
2025-09-30 17:28 ` Timur Tabi
2025-09-30 13:26 ` [PATCH v3 00/13] gpu: nova-core: Boot GSP to RISC-V active Danilo Krummrich
2025-10-01 2:02 ` Alistair Popple
2025-10-01 2:02 ` John Hubbard
2025-10-01 5:54 ` Alistair Popple
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