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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-02-02 21:46:34 -0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-03-02 17:01:56 +0200 |
| commit | e82becfc1879a43aa29492ae90ea6eb6c68b60fc (patch) | |
| tree | 58a5bb902a9ee27cf0a4242ba3fcdf86fa60a315 /arch/s390/Kconfig | |
| parent | 6aca0503847f6329460b15b3ab2b0e30bb752793 (diff) | |
| download | lwn-e82becfc1879a43aa29492ae90ea6eb6c68b60fc.tar.gz lwn-e82becfc1879a43aa29492ae90ea6eb6c68b60fc.zip | |
s390/dma: Allow per device dma ops
As virtio-ccw will have dma ops, we can no longer default to the
zPCI ones. Make use of dev_archdata to keep the dma_ops per device.
The pci devices now use that to override the default, and the
default is changed to use the noop ops for everything that does not
specify a device specific one.
To compile without PCI support we will enable HAS_DMA all the time,
via the default config in lib/Kconfig.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.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 3be9c832dec1..b29c66e77e32 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -124,6 +124,7 @@ config S390 select HAVE_CMPXCHG_DOUBLE select HAVE_CMPXCHG_LOCAL select HAVE_DEBUG_KMEMLEAK + select HAVE_DMA_API_DEBUG select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS select HAVE_FTRACE_MCOUNT_RECORD @@ -619,10 +620,6 @@ config HAS_IOMEM config IOMMU_HELPER def_bool PCI -config HAS_DMA - def_bool PCI - select HAVE_DMA_API_DEBUG - config NEED_SG_DMA_LENGTH def_bool PCI |