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| author | Thierry Reding <treding@nvidia.com> | 2014-08-25 13:02:52 +0200 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2014-08-26 07:39:12 +0200 |
| commit | 90114d65feea716eeae0ab51e92c95b140b2e6fc (patch) | |
| tree | 72d7ce0a1cf61c34a3122b77ea914dad50cff68b /arch/s390/Kconfig | |
| parent | 7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff) | |
| download | op-kernel-dev-90114d65feea716eeae0ab51e92c95b140b2e6fc.zip op-kernel-dev-90114d65feea716eeae0ab51e92c95b140b2e6fc.tar.gz | |
s390: Implement dma_{alloc,free}_attrs()
The S390 architecture advertises support for HAVE_DMA_ATTRS when PCI is
enabled. Patches to unify some of the DMA API would like to rely on the
dma_alloc_attrs() and dma_free_attrs() functions to be provided when an
architecture supports DMA attributes.
Rename dma_alloc_coherent() and dma_free_coherent() to dma_alloc_attrs()
and dma_free_attrs() since they are functionally equivalent and alias
the former to the latter for compatibility.
For consistency with other architectures, also reuse the existing symbol
HAVE_DMA_ATTRS defined in arch/Kconfig instead of providing a duplicate.
Select it when PCI is enabled.
While at it, drop a redundant 'default n' from the PCI Kconfig symbol.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-By: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index ab39ceb8..fafeae0 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -498,8 +498,8 @@ config QDIO menuconfig PCI bool "PCI support" - default n depends on 64BIT + select HAVE_DMA_ATTRS select PCI_MSI help Enable PCI support. @@ -546,9 +546,6 @@ config HAS_DMA config NEED_SG_DMA_LENGTH def_bool PCI -config HAVE_DMA_ATTRS - def_bool PCI - config NEED_DMA_MAP_STATE def_bool PCI |
