diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-06-25 11:01:34 +0200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2019-07-01 11:17:00 +0200 |
| commit | 34dc63a5fb9b7f5dcb49f61552226c6314f347f6 (patch) | |
| tree | 4be03bb9fe2baeaffa36d75ed60c84d369b99f76 /arch/m68k/Kconfig | |
| parent | f67d667213ba03db66230735d354f2a286c1cbda (diff) | |
m68k: Use the generic dma coherent remap allocator
This switches m68k to using common code for the DMA allocations,
including potential use of the CMA allocator if configured.
Also add a comment where the existing behavior seems to be lacking.
Switching to the generic code enables DMA allocations from atomic
context, which is required by the DMA API documentation, and also
adds various other minor features drivers start relying upon. It
also makes sure we have a tested code base for all architectures
that require uncached pte bits for coherent DMA allocations.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/Kconfig')
| -rw-r--r-- | arch/m68k/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 218e037ef901..3a52bf46e043 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -3,10 +3,12 @@ config M68K bool default y select ARCH_32BIT_OFF_T + select ARCH_HAS_DMA_MMAP_PGPROT if MMU && !COLDFIRE select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA select ARCH_MIGHT_HAVE_PC_PARPORT if ISA select ARCH_NO_COHERENT_DMA_MMAP if !MMU select ARCH_NO_PREEMPT if !COLDFIRE + select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE select HAVE_IDE select HAVE_AOUT if MMU select HAVE_DEBUG_BUGVERBOSE |