linux/drivers/dma, branch v2.6.28

async_xor: dma_map destination DMA_BIDIRECTIONAL

2008-12-08T20:46:00Z

Mapping the destination multiple times is a misuse of the dma-api. Since the destination may be reused as a source, ensure that it is only mapped once and that it is mapped bidirectionally. This appears to add ugliness on the unmap side in that it always reads back the destination address from the descriptor, but gcc can determine that dma_unmap is a nop and not emit the code that calculates its arguments. Cc: Cc: Saeed Bishara Acked-by: Yuri Tikhonov Signed-off-by: Dan Williams

dmaengine: protect 'id' from concurrent registrations

2008-12-04T00:25:36Z

There is a possibility to have two devices registered with the same id. Cc: Acked-by: Maciej Sosnowski Signed-off-by: Dan Williams

ioat: wait for self-test completion

2008-12-04T00:16:55Z

As part of the ioat_dma self-test it performs a printk from a completion callback. Depending on the system console configuration this output can take longer than a millisecond causing the self-test to fail. Introduce a completion with a generous timeout to mitigate this failure. Cc: Acked-by: Maciej Sosnowski Signed-off-by: Dan Williams

dmaengine: struct device - replace bus_id with dev_name(), dev_set_name()

2008-11-11T20:12:33Z

Acked-by: Greg Kroah-Hartman Acked-by: Maciej Sosnowski Signed-off-by: Kay Sievers Signed-off-by: Dan Williams

iop-adma: use iop_paranoia() for debug BUG_ONs

2008-11-11T20:12:33Z

Now that the critical read back to flush the next descriptor address is fixed we can downgrade some BUG_ONs that need only be enabled when testing changes to the driver. Signed-off-by: Dan Williams

iop-adma: add a dummy read to flush next descriptor update

2008-11-11T20:12:33Z

The current dummy read references the wrong address allowing the next descriptor address update to linger in the store buffer and get passed by an 'append' event. This issue was uncovered by the change from strongly-ordered to device memory for the adma registers. Signed-off-by: Dan Williams

[3/4] I/OAT: fix async_tx.callback checking

2008-11-10T23:01:00Z

async_tx.callback should be checked for the first not the last descriptor in the chain. Cc: Signed-off-by: Maciej Sosnowski Signed-off-by: David S. Miller

[2/4] I/OAT: fix dma_pin_iovec_pages() error handling

2008-11-10T23:00:56Z

Error handling needs to be modified in dma_pin_iovec_pages(). It should return NULL instead of ERR_PTR (pinned_list is checked for NULL in tcp_recvmsg() to determine if iovec pages have been successfully pinned down). In case of error for the first iovec, local_list->nr_iovecs needs to be initialized. Cc: Signed-off-by: Maciej Sosnowski Signed-off-by: David S. Miller

[1/4] I/OAT: fix channel resources free for not allocated channels

2008-11-10T23:00:51Z

If the ioatdma driver is loaded but not used it does not allocate descriptors. Before it frees channel resources it should first be sure that they have been previously allocated. Cc: Signed-off-by: Maciej Sosnowski Tested-by: Tom Picard Signed-off-by: Dan Williams Signed-off-by: David S. Miller

Merge branch 'i7300_idle' into release

2008-10-25T08:07:44Z