From: Joel Fernandes <joelagnelf@nvidia.com>
To: Gary Guo <gary@garyguo.net>
Cc: linux-kernel@vger.kernel.org, Miguel Ojeda <ojeda@kernel.org>,
Boqun Feng <boqun@kernel.org>,
Bjorn 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>,
Danilo Krummrich <dakr@kernel.org>,
Dave Airlie <airlied@redhat.com>,
Daniel Almeida <daniel.almeida@collabora.com>,
Koen Koning <koen.koning@linux.intel.com>,
dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org,
rust-for-linux@vger.kernel.org,
Nikola Djukic <ndjukic@nvidia.com>,
Alexandre Courbot <acourbot@nvidia.com>,
joel@joelfernandes.org
Subject: Re: [PATCH v8 16/25] gpu: nova-core: mm: Add page table walker for MMU v2/v3
Date: Mon, 2 Mar 2026 15:10:21 -0500 [thread overview]
Message-ID: <54dc2b29-593c-4833-9978-12366b59d1c3@nvidia.com> (raw)
In-Reply-To: <DGRH1R6GVNI7.11AU3CRM3M36Y@garyguo.net>
On Sun, Mar 01, 2026 at 01:15:00PM +0000, Gary Guo wrote:
> So PDB is not just a single address, but a list of page table entries? If that's
> the case, then the number of levels is indeed correct, but reading the code
> gives me an impression otherwise.
Correct - PDB (Page Directory Base) is not a single address/pointer but
a full page table level containing a table of entries.
next prev parent reply other threads:[~2026-03-02 20:10 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-24 22:52 [PATCH v8 00/25] gpu: nova-core: Add memory management support Joel Fernandes
2026-02-24 22:52 ` [PATCH v8 01/25] gpu: nova-core: Select GPU_BUDDY for VRAM allocation Joel Fernandes
2026-03-01 12:41 ` Alexandre Courbot
2026-02-24 22:53 ` [PATCH v8 02/25] gpu: nova-core: Kconfig: Sort select statements alphabetically Joel Fernandes
2026-03-01 12:40 ` Alexandre Courbot
2026-02-24 22:53 ` [PATCH v8 03/25] gpu: nova-core: gsp: Return GspStaticInfo and FbLayout from boot() Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 04/25] gpu: nova-core: gsp: Extract usable FB region from GSP Joel Fernandes
2026-03-01 12:43 ` Alexandre Courbot
2026-02-24 22:53 ` [PATCH v8 05/25] gpu: nova-core: fb: Add usable_vram field to FbLayout Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 06/25] gpu: nova-core: mm: Add support to use PRAMIN windows to write to VRAM Joel Fernandes
2026-03-02 11:58 ` Alexandre Courbot
2026-03-03 19:44 ` Joel Fernandes
2026-03-02 12:23 ` Alexandre Courbot
2026-03-03 21:01 ` Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 07/25] docs: gpu: nova-core: Document the PRAMIN aperture mechanism Joel Fernandes
2026-03-02 12:02 ` Alexandre Courbot
2026-02-24 22:53 ` [PATCH v8 08/25] gpu: nova-core: mm: Add common memory management types Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 09/25] gpu: nova-core: mm: Add TLB flush support Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 10/25] gpu: nova-core: mm: Add GpuMm centralized memory manager Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 11/25] gpu: nova-core: mm: Use usable VRAM region for buddy allocator Joel Fernandes
2026-03-01 12:56 ` Alexandre Courbot
2026-03-02 3:08 ` Alexandre Courbot
2026-03-03 23:54 ` Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 12/25] gpu: nova-core: mm: Add common types for all page table formats Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 13/25] gpu: nova-core: mm: Add MMU v2 page table types Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 14/25] gpu: nova-core: mm: Add MMU v3 " Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 15/25] gpu: nova-core: mm: Add unified page table entry wrapper enums Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 16/25] gpu: nova-core: mm: Add page table walker for MMU v2/v3 Joel Fernandes
2026-02-25 5:39 ` Gary Guo
2026-02-25 14:26 ` Joel Fernandes
2026-03-01 13:15 ` Gary Guo
2026-03-02 20:10 ` Joel Fernandes [this message]
2026-02-24 22:53 ` [PATCH v8 17/25] gpu: nova-core: mm: Add Virtual Memory Manager Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 18/25] gpu: nova-core: mm: Add virtual address range tracking to VMM Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 19/25] gpu: nova-core: mm: Add multi-page mapping API " Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 20/25] gpu: nova-core: Add BAR1 aperture type and size constant Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 21/25] gpu: nova-core: gsp: Add BAR1 PDE base accessors Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 22/25] gpu: nova-core: mm: Add BAR1 user interface Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 23/25] gpu: nova-core: mm: Add BarUser to struct Gpu and create at boot Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 24/25] gpu: nova-core: mm: Add BAR1 memory management self-tests Joel Fernandes
2026-02-24 22:53 ` [PATCH v8 25/25] gpu: nova-core: mm: Add PRAMIN aperture self-tests Joel Fernandes
2026-03-02 12:04 ` Alexandre Courbot
2026-03-02 20:11 ` Joel Fernandes
2026-03-05 7:26 ` Alexandre Courbot
2026-03-06 1:49 ` Joel Fernandes
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