Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Mon, 24 Jun 2019 09:16:30 +0200 | Subject | Re: [RFC] switch m68k to use the generic remapping DMA allocator |
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Hi Christoph,
On Fri, Jun 14, 2019 at 12:21 PM Christoph Hellwig <hch@lst.de> wrote: > can you take a look at the (untested) patches below? They convert m68k > to use the generic remapping DMA allocator, which is also used by > arm64 and csky.
When building for Sun-3:
kernel/dma/remap.o: In function `arch_dma_alloc': remap.c:(.text+0x316): undefined reference to `__dma_direct_alloc_pages' remap.c:(.text+0x32a): undefined reference to `arch_dma_prep_coherent' remap.c:(.text+0x34e): undefined reference to `arch_dma_mmap_pgprot' remap.c:(.text+0x378): undefined reference to `__dma_direct_free_pages' remap.c:(.text+0x3f4): undefined reference to `arch_dma_prep_coherent' remap.c:(.text+0x40a): undefined reference to `__dma_direct_alloc_pages' kernel/dma/remap.o: In function `arch_dma_free': remap.c:(.text+0x446): undefined reference to `__dma_direct_free_pages' remap.c:(.text+0x4a8): undefined reference to `__dma_direct_free_pages' kernel/dma/remap.o: In function `dma_atomic_pool_init': remap.c:(.init.text+0x66): undefined reference to `arch_dma_prep_coherent'
Doing
- select DMA_DIRECT_REMAP if MMU && !COLDFIRE + select DMA_DIRECT_REMAP if MMU && !COLDFIRE && !SUN3
in arch/m68k/Kconfig fixes the build.
Alternatively, you could use:
- select DMA_DIRECT_REMAP if MMU && !COLDFIRE + select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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