diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-06-30 18:43:47 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-07-04 00:29:52 +0200 |
| commit | 2ee7a4ef98e309a1f496be2b0bf9307b5a7a31e5 (patch) | |
| tree | 21e98a541d15b97840c0a33bb303e0c91f7a5aa6 /arch/mips | |
| parent | usb: host: Fix excessive alignment restriction for local memory allocations (diff) | |
| download | linux-2ee7a4ef98e309a1f496be2b0bf9307b5a7a31e5.tar.xz linux-2ee7a4ef98e309a1f496be2b0bf9307b5a7a31e5.zip | |
MIPS: only select ARCH_HAS_UNCACHED_SEGMENT for non-coherent platforms
While mips might architecturally have the uncached segment all the time,
the infrastructure to use it is only need on platforms where DMA is
at least partially incoherent. Only select it for those configuration
to fix a build failure as the arch_dma_prep_coherent symbol is also only
provided for non-coherent platforms.
Fixes: 2e96e04d25ca ("MIPS: use the generic uncached segment support in dma-direct")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 61a390c2f2c1..caf480275a31 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -8,7 +8,6 @@ config MIPS select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAS_UBSAN_SANITIZE_ALL - select ARCH_HAS_UNCACHED_SEGMENT select ARCH_SUPPORTS_UPROBES select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF if 64BIT @@ -1120,6 +1119,7 @@ config DMA_NONCOHERENT bool select ARCH_HAS_DMA_MMAP_PGPROT select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_UNCACHED_SEGMENT select NEED_DMA_MAP_STATE select ARCH_HAS_DMA_COHERENT_TO_PFN select DMA_NONCOHERENT_CACHE_SYNC |