Messages in this thread |  | | Date | Thu, 30 Apr 2026 11:13:18 -0500 | | Subject | Re: [PATCH v5 0/4] dma-buf: heaps: Turn heaps into modules | | From | Andrew Davis <> |
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On 4/27/26 5:04 AM, Maxime Ripard wrote: > Hi, > > 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 is now easy too with the > reworks we got in 7.1-r1. > > 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> > --- > Changes in v5: > - Rebase on 7.1-rc1 > - Add a patch to enable the heaps in arm64 defconfig
Could you do this for ARM (multi_v7_defconfig) also? Actually seems loongarch has Heaps enabled by default and I've seen it default enabled on some x86 distros too. Maybe someday having the base Heaps + System Heap set to "default y/m" as they should always exist for any arch would be an idea. Anyway for this series all LGTM,
Acked-by: Andrew Davis <afd@ti.com>
> - Link to v4: https://lore.kernel.org/r/20260331-dma-buf-heaps-as-modules-v4-0-e18fda504419@kernel.org > > Changes in v4: > - Fix compilation failure > - Rework to take into account OF_RESERVED_MEM > - Fix regression making the default CMA area disappear if not created > through the DT > - Added some documentation and comments > - Link to v3: https://lore.kernel.org/r/20260303-dma-buf-heaps-as-modules-v3-0-24344812c707@kernel.org > > Changes in v3: > - Squashed cma_get_name and cma_alloc/release patches > - Fixed typo in Export dev_get_cma_area commit title > - Fixed compilation failure with DMA_CMA but not OF_RESERVED_MEM > - Link to v2: https://lore.kernel.org/r/20260227-dma-buf-heaps-as-modules-v2-0-454aee7e06cc@kernel.org > > Changes in v2: > - Collect tags > - Don't export dma_contiguous_default_area anymore, but export > dev_get_cma_area instead > - Mentioned that heap modules can't be removed > - Link to v1: https://lore.kernel.org/r/20260225-dma-buf-heaps-as-modules-v1-0-2109225a090d@kernel.org > > --- > Maxime Ripard (4): > dma-buf: heaps: Export mem_accounting parameter > dma-buf: heaps: cma: Turn the heap into a module > dma-buf: heaps: system: Turn the heap into a module > arm64: defconfig: Enable dma-buf heaps > > arch/arm64/configs/defconfig | 3 +++ > drivers/dma-buf/dma-heap.c | 1 + > drivers/dma-buf/heaps/Kconfig | 4 ++-- > drivers/dma-buf/heaps/cma_heap.c | 3 +++ > drivers/dma-buf/heaps/system_heap.c | 5 +++++ > 5 files changed, 14 insertions(+), 2 deletions(-) > --- > base-commit: 5e9b7d093f3f77cb0af4409559e3d139babfb443 > change-id: 20260225-dma-buf-heaps-as-modules-1034b3ec9f2a > > Best regards,
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