AuxXxilium/linux_dsm_epyc7002
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49954c1567
linux_dsm_epyc7002/drivers/dma
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Dan Williams 49954c1567 ioat3: fix pq completion versus channel deallocation race 
The completion of a pq operation is notified with a null descriptor
appended to the end of the chain.  This descriptor needs to be visible
to dma clients otherwise the client is precluded from ensuring all
operations are quiesced before freeing channel resources, i.e. due to
descriptor polling it may get the completion notification ahead of the
interrupt delivered by the null descriptor.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-11-19 23:21:03 -07:00
..
ioat ioat3: fix pq completion versus channel deallocation race 2009-11-19 23:21:03 -07:00
ipu dma: fix ipu_idmac.c to not discard the last queued buffer 2009-05-12 14:41:48 -07:00
at_hdmac_regs.h at_hdmac: implement a private tx_list 2009-09-08 17:53:03 -07:00
at_hdmac.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx into for-linus 2009-09-23 18:31:11 +10:00
dmaengine.c async_tx: build-time toggling of async_{syndrome,xor}_val dma support 2009-11-19 23:21:03 -07:00
dmatest.c Merge branch 'dmaengine' into async-tx-next 2009-09-08 17:55:21 -07:00
dw_dmac_regs.h dw_dmac: implement a private tx_list 2009-09-08 17:53:02 -07:00
dw_dmac.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx into for-linus 2009-09-23 18:31:11 +10:00
fsldma.c fsldma: Add DMA_SLAVE support 2009-09-08 17:53:04 -07:00
fsldma.h fsldma: split apart external pause and request count features 2009-09-08 17:53:04 -07:00
iop-adma.c Merge branch 'dmaengine' into async-tx-next 2009-09-08 17:55:21 -07:00
iovlock.c net_dma: poll for a descriptor after allocation failure 2009-09-08 17:38:54 -07:00
Kconfig async_tx: build-time toggling of async_{syndrome,xor}_val dma support 2009-11-19 23:21:03 -07:00
Makefile dmaengine: sh: Add Support SuperH DMA Engine driver 2009-09-08 17:56:02 -07:00
mv_xor.c mv_xor: implement a private tx_list 2009-09-08 17:53:03 -07:00
mv_xor.h mv_xor: implement a private tx_list 2009-09-08 17:53:03 -07:00
shdma.c dmaengine: sh: Add Support SuperH DMA Engine driver 2009-09-08 17:56:02 -07:00
shdma.h dmaengine: sh: Add Support SuperH DMA Engine driver 2009-09-08 17:56:02 -07:00
txx9dmac.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx into for-linus 2009-09-23 18:31:11 +10:00
txx9dmac.h txx9dmac: implement a private tx_list 2009-09-08 17:53:03 -07:00