From: "Alexandre Courbot" <acourbot@nvidia.com>
To: "Joel Fernandes" <joelagnelf@nvidia.com>
Cc: linux-kernel@vger.kernel.org, "Miguel Ojeda" <ojeda@kernel.org>,
"Boqun Feng" <boqun@kernel.org>, "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>,
"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>,
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"Christian König" <christian.koenig@amd.com>,
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"Lucas De Marchi" <lucas.demarchi@intel.com>,
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"Boqun Feng" <boqun.feng@gmail.com>,
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"Andrea Righi" <arighi@nvidia.com>, "Zhi Wang" <zhiw@nvidia.com>,
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"Elle Rhumsaa" <elle@weathered-steel.dev>,
alexeyi@nvidia.com, "Eliot Courtney" <ecourtney@nvidia.com>,
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intel-xe@lists.freedesktop.org, linux-fbdev@vger.kernel.org
Subject: Re: [PATCH v8 11/25] gpu: nova-core: mm: Use usable VRAM region for buddy allocator
Date: Mon, 02 Mar 2026 12:08:56 +0900 [thread overview]
Message-ID: <DGRYS9M0DSP3.35OPMTWI9KC7S@nvidia.com> (raw)
In-Reply-To: <DGRGNLACDJI2.1JFEXE1GL1ZVM@nvidia.com>
On Sun Mar 1, 2026 at 9:56 PM JST, Alexandre Courbot wrote:
<snip>
> This is all the better as `usable_vram` is added as an `Option` in
> `FbLayout`, not because `None` is a valid state but because `FbLayout`
> is already constructed by the time we obtain `usable_vram`. So `None` is
> just a value that tells the caller "please return an error". Now we can
> remove the option altogether, drop patch 5, and have `boot` return the
> error for us if `usable_vram` cannot be obtained.
Correction: patches 3 and 5 won't be needed anymore and can be dropped,
it seems.
next prev parent reply other threads:[~2026-03-02 3:09 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 [this message]
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
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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