Re: [PATCH v4 0/8] dma-buf: heaps: Turn heaps into modules

Maxime Ripard
2026-04-02T13:12:07Z

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On Thu, Apr 02, 2026 at 10:36:48AM +0530, Sumit Semwal wrote:
> Hello Maxime,
>
> On Tue, 31 Mar 2026 at 18:24, Marek Szyprowski <m.szyprowski@samsung.com> wrote:
> >
> > On 31.03.2026 12:00, Maxime Ripard wrote:
> > > The recent introduction of heaps in the optee driver [1] made possible
> > > the creation of heaps as modules.
> > >
> > > It's generally a good idea if possible, including for the already
> > > existing system and CMA heaps.
> > >
> > > The system one is pretty trivial, the CMA one is a bit more involved,
> > > especially since we have a call from kernel/dma/contiguous.c to the CMA
> > > heap code. This was solved by turning the logic around and making the
> > > CMA heap call into the contiguous DMA code.
> > >
> > > Let me know what you think,
> > > Maxime
> > >
> > > 1: https://lore.kernel.org/dri-devel/20250911135007.1275833-4-jens.wiklander@linaro.org/
> > >
> > > Signed-off-by: Maxime Ripard <mripard@kernel.org>
>
> Thank you for this patch series; now that it is needed by more folks,
> I think we can merge this.
>
> Marek, I'll coordinate with you on this - thank you!

If Marek plans on sending it during the next merge window, maybe the
best thing to do for us is just to wait for -rc1 and apply the rest of
the patches. Otherwise, we can merge the branch in drm-misc.

Maxime

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