[PATCH] arm64: cache: Lower ARCH_DMA_MINALIGN to 64 (L1_CACHE_BYTES)

[Arnd Bergmann]

On Wed, Jun 2, 2021 at 4:52 PM Arnd Bergmann <arnd at arndb.de> wrote:
> On Wed, Jun 2, 2021 at 4:28 PM Marek Szyprowski <m.szyprowski at samsung.com> wrote:
> I suppose most can be easily ruled out because they are not shared, or
> because they are larger than 64 bytes. I'll have a quick look if I find any smoking guns.

Sorry for the late follow-up. I did check these last week, but
unfortunately none of
the allocations in the vc4 driver itself  looked suspicious to me in
the end. It might
still be an indirect allocation though, where the vc4 driver calls
into a drivers/drm/
API or something else that allocates a small DMA buffer.

        Arnd