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From: Joel Fernandes <joelagnelf@nvidia.com>
To: Alexandre Courbot <acourbot@nvidia.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Miguel Ojeda <ojeda@kernel.org>, Boqun Feng <boqun@kernel.org>,
	Gary Guo <gary@garyguo.net>,
	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>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	"rust-for-linux@vger.kernel.org" <rust-for-linux@vger.kernel.org>,
	"nova-gpu@lists.linux.dev" <nova-gpu@lists.linux.dev>,
	Nikola Djukic <ndjukic@nvidia.com>,
	David Airlie <airlied@gmail.com>,
	Boqun Feng <boqun.feng@gmail.com>,
	John Hubbard <jhubbard@nvidia.com>,
	Alistair Popple <apopple@nvidia.com>,
	Timur Tabi <ttabi@nvidia.com>, Edwin Peer <epeer@nvidia.com>,
	Andrea Righi <arighi@nvidia.com>,
	Andy Ritger <ARitger@nvidia.com>, Zhi Wang <zhiw@nvidia.com>,
	Balbir Singh <balbirs@nvidia.com>,
	Philipp Stanner <phasta@kernel.org>,
	Alexey Ivanov <alexeyi@nvidia.com>,
	Eliot Courtney <ecourtney@nvidia.com>,
	"joel@joelfernandes.org" <joel@joelfernandes.org>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Subject: Re: [PATCH v12 04/22] gpu: nova-core: mm: Add support to use PRAMIN windows to write to VRAM
Date: Tue, 5 May 2026 22:59:25 +0000	[thread overview]
Message-ID: <DA4303E1-F49E-42BD-99B6-C7472C3BB12F@nvidia.com> (raw)
In-Reply-To: <DI8B0103X0HQ.7C99YLBMS2X5@nvidia.com>



> On May 2, 2026, at 11:42 AM, Alexandre Courbot <acourbot@nvidia.com>

>> +
>> +/// PRAMIN aperture manager.
>> +///
>> +/// Call [`Pramin::get_window()`] to acquire exclusive PRAMIN access.
>> +#[pin_data]
>> +pub(crate) struct Pramin {
>> +    bar: Arc<Devres<Bar0>>,
> 
> The HRT series [1] will allow you to greatly simplify all this by
> storing a `&'a Bar0` directly in this structure. It will most likely
> land this cycle, so I think it's a good idea to proactively depend on
> them. It should apply cleanly (modulo the Tyr patches IIRC, but you can
> skip them if you don't build the driver) on top of `drm-rust-next` - on
> top of which this should also be rebased anyway.
> 
> [1] https://lore.kernel.org/all/20260427221155.2144848-1-dakr@kernel.org/
> 

I tried to apply it but had a lot of conflict.

Danilo, do you have a tree of these patches somewhere that applies on drm-rust-next?

thanks,
-
Joel Fernandes


  reply	other threads:[~2026-05-05 22:59 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-25 21:14 [PATCH v12 00/22] gpu: nova-core: Add memory management support Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 01/22] gpu: nova-core: gsp: Return GspStaticInfo from boot() Joel Fernandes
2026-05-02 15:41   ` Alexandre Courbot
2026-05-05 18:25     ` Joel Fernandes
2026-05-06  0:46       ` Alexandre Courbot
2026-04-25 21:14 ` [PATCH v12 02/22] gpu: nova-core: gsp: Extract usable FB region from GSP Joel Fernandes
2026-05-02 15:41   ` Alexandre Courbot
2026-05-05 18:54     ` Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 03/22] gpu: nova-core: gsp: Expose total physical VRAM end from FB region info Joel Fernandes
2026-05-02 15:41   ` Alexandre Courbot
2026-05-05 20:17     ` Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 04/22] gpu: nova-core: mm: Add support to use PRAMIN windows to write to VRAM Joel Fernandes
2026-05-02 15:41   ` Alexandre Courbot
2026-05-05 22:59     ` Joel Fernandes [this message]
2026-05-06  0:47       ` Alexandre Courbot
2026-04-25 21:14 ` [PATCH v12 05/22] docs: gpu: nova-core: Document the PRAMIN aperture mechanism Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 06/22] gpu: nova-core: mm: Add common memory management types Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 07/22] gpu: nova-core: mm: Add TLB flush support Joel Fernandes
2026-05-02 15:42   ` Alexandre Courbot
2026-04-25 21:14 ` [PATCH v12 08/22] gpu: nova-core: mm: Add GpuMm centralized memory manager Joel Fernandes
2026-05-02 15:42   ` Alexandre Courbot
2026-04-25 21:14 ` [PATCH v12 09/22] gpu: nova-core: mm: Add common types for all page table formats Joel Fernandes
2026-05-02 15:42   ` Alexandre Courbot
2026-05-02 17:55     ` Joel Fernandes
2026-05-04 14:27       ` Alexandre Courbot
2026-04-25 21:14 ` [PATCH v12 10/22] gpu: nova-core: mm: Add MMU v2 page table types Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 11/22] gpu: nova-core: mm: Add MMU v3 " Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 12/22] gpu: nova-core: mm: Add page table entry operation traits Joel Fernandes
2026-05-02 15:42   ` Alexandre Courbot
2026-05-02 19:19     ` Joel Fernandes
2026-05-04 14:31       ` Alexandre Courbot
2026-05-04 19:28         ` Joel Fernandes
2026-05-04 19:42           ` Danilo Krummrich
2026-05-04 19:50             ` Joel Fernandes
2026-05-04 23:50               ` Joel Fernandes
2026-05-05  5:37           ` Alexandre Courbot
2026-04-25 21:14 ` [PATCH v12 13/22] gpu: nova-core: mm: Add page table walker for MMU v2/v3 Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 14/22] gpu: nova-core: mm: Add Virtual Memory Manager Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 15/22] gpu: nova-core: mm: Add virtual address range tracking to VMM Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 16/22] gpu: nova-core: mm: Add multi-page mapping API " Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 17/22] gpu: nova-core: Add BAR1 aperture type and size constant Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 18/22] gpu: nova-core: mm: Add BAR1 user interface Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 19/22] gpu: nova-core: mm: Add BAR1 memory management self-tests Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 20/22] gpu: nova-core: mm: Add PRAMIN aperture self-tests Joel Fernandes
2026-05-02 15:42   ` Alexandre Courbot
2026-05-05 21:18     ` Joel Fernandes
2026-04-25 21:14 ` [PATCH v12 21/22] gpu: nova-core: mm: pramin: drop useless as_ref() in run_self_test Joel Fernandes
2026-05-02 15:42   ` Alexandre Courbot
2026-04-25 21:14 ` [PATCH v12 22/22] rust: maple_tree: implement Send and Sync for MapleTree Joel Fernandes
2026-05-02 15:42   ` Alexandre Courbot
2026-05-02 17:36     ` Joel Fernandes

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