linux/drivers/dma, branch mybooklive

gpl-source-mybooklive-020202.zip

2014-08-13T23:11:53Z

gpl-source-mybooklive-020035.zip

2014-08-13T23:04:11Z

gpl-source-mybooklive-010002-update.zip

2014-08-13T21:14:13Z

ioat: fix infinite timeout checking in ioat2_quiesce

2010-02-23T15:37:49Z

commit 7e55a70c5b9a57c12f49c44b0847c9343d4f54e4 upstream. Fix typo in ioat2_quiesce. check 'tmo' is zero, not 'end'. Also applies to 2.6.32.3 Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman

ioat2,3: put channel hardware in known state at init

2010-01-06T23:03:59Z

commit a6d52d70677e99bdb89b6921c265d0a58c22e597 upstream. Put the ioat2 and ioat3 state machines in the halted state with all errors cleared. The ioat1 init path is not disturbed for stability, there are no reported ioat1 initiaization issues. Reported-by: Roland Dreier Tested-by: Roland Dreier Acked-by: Simon Horman Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman

ioat3: fix p-disabled q-continuation

2010-01-06T23:03:58Z

commit cd78809f6191485a90ea6c92c2b58900ab5c156f upstream. When continuing a pq calculation the driver needs 3 extra sources. The driver can perform a 3 source calculation with a single descriptor, but needs an extended descriptor to process up to 8 sources in one operation. However, in the p-disabled case only one extra source is needed. When continuing a p-disabled operation there are occasions (i.e. 0 < src_cnt % 8 < 3) where the tail operation does not need an extended descriptor. Properly account for this fact otherwise invalid 'dmacount' values will be written to hardware usually causing the channel to halt with 'invalid descriptor' errors. Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman

dma: at_hdmac: correct incompatible type for argument 1 of 'spin_lock_bh'

2010-01-06T23:03:51Z

commit 4297a462f455e38f08976df7b16c849614a287da upstream. Correct a typo error in locking calls. Signed-off-by: Nicolas Ferre Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman

shdma: fix initialization error handling

2009-11-22T19:10:10Z

1/ Error handling code following a kzalloc should free the allocated data. 2/ Report an error when no platform data is detected Both problems fixed by moving the platform data check before the allocation, and allows a goto to be killed. Reported-by: Julia Lawall Acked-by: Julia Lawall Signed-off-by: Dan Williams

ioat3: fix pq completion versus channel deallocation race

2009-11-20T06:21:03Z

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

async_tx: build-time toggling of async_{syndrome,xor}_val dma support

2009-11-20T06:21:03Z

ioat3.2 does not support asynchronous error notifications which makes the driver experience latencies when non-zero pq validate results are expected. Provide a mechanism for turning off async_xor_val and async_syndrome_val via Kconfig. This approach is generally useful for any driver that specifies ASYNC_TX_DISABLE_CHANNEL_SWITCH and would like to force the async_tx api to fall back to the synchronous path for certain operations. Signed-off-by: Dan Williams