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5128da3235
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Christoph Hellwig 5128da3235 parisc: don't set ARCH_NO_COHERENT_DMA_MMAP 
parisc is the only architecture that sets ARCH_NO_COHERENT_DMA_MMAP
when an MMU is enabled.  AFAIK this is because parisc CPUs use VIVT
caches, which means exporting normally cachable memory to userspace is
relatively dangrous due to cache aliasing.

But normally cachable memory is only allocated by dma_alloc_coherent
on parisc when using the sba_iommu or ccio_iommu drivers, so just
remove the .mmap implementation for them so that we don't have to set
ARCH_NO_COHERENT_DMA_MMAP, which I plan to get rid of.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-09-04 11:13:18 +02:00
..
alpha dma-mapping: explicitly wire up ->mmap and ->get_sgtable 2019-09-04 11:13:18 +02:00
arc dma-mapping: make dma_atomic_pool_init self-contained 2019-08-29 16:43:33 +02:00
arm arm-nommu: call dma_mmap_from_dev_coherent directly 2019-09-04 11:13:18 +02:00
arm64 arm64: document the choice of page attributes for pgprot_dmacoherent 2019-08-29 16:43:33 +02:00
c6x Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2019-07-10 21:42:03 -07:00
csky dma-mapping: make dma_atomic_pool_init self-contained 2019-08-29 16:43:33 +02:00
h8300 h8300 update for 5.3 2019-07-17 09:36:38 -07:00
hexagon hexagon: switch to generic version of pte allocation 2019-07-21 09:53:00 -07:00
ia64 dma-mapping: explicitly wire up ->mmap and ->get_sgtable 2019-09-04 11:13:18 +02:00
m68k dma-mapping: remove arch_dma_mmap_pgprot 2019-08-29 16:43:22 +02:00
microblaze clone3-v5.3 2019-07-11 10:09:44 -07:00
mips dma-mapping: explicitly wire up ->mmap and ->get_sgtable 2019-09-04 11:13:18 +02:00
nds32 dma-mapping: make dma_atomic_pool_init self-contained 2019-08-29 16:43:33 +02:00
nios2 nios2 update for v5.3-rc1 2019-07-12 15:38:05 -07:00
openrisc dma-mapping updates for Linux 5.3 2019-07-12 15:13:55 -07:00
parisc parisc: don't set ARCH_NO_COHERENT_DMA_MMAP 2019-09-04 11:13:18 +02:00
powerpc dma-mapping: explicitly wire up ->mmap and ->get_sgtable 2019-09-04 11:13:18 +02:00
riscv riscv: Make __fstate_clean() work correctly. 2019-08-14 13:20:46 -07:00
s390 dma-mapping: explicitly wire up ->mmap and ->get_sgtable 2019-09-04 11:13:18 +02:00
sh sh: kernel: hw_breakpoint: Fix missing break in switch statement 2019-08-11 16:15:16 -05:00
sparc treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
um um: fix time travel mode 2019-08-23 00:39:53 +02:00
unicore32 unicore32: remove the unused pgprot_dmacoherent define 2019-08-26 09:13:17 +02:00
x86 dma-mapping: explicitly wire up ->mmap and ->get_sgtable 2019-09-04 11:13:18 +02:00
xtensa xtensa: add missing isync to the cpu_reset TLB code 2019-08-12 15:05:48 -07:00
.gitignore
Kconfig Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-20 10:33:44 -07:00