linux-toradex.git/drivers/crypto/omap-sham.c, branch v3.2.37

crypto: omap-sham - do not schedule tasklet if there is no active requests

2011-06-29T23:44:05+00:00

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu

crypto: omap-sham - clear device flags when finishing request

2011-06-29T23:44:04+00:00

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu

crypto: omap-sham - irq handler must not clear error code

2011-06-29T23:44:04+00:00

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu

crypto: omap-sham - irq and dma handling changes

2011-06-29T23:44:04+00:00

It could be a situation, that tasklet is executed twice because of
certain delay between dma callback and irq handler execution.
In that case, second tasklet execution could actually corrupt the data
of the new started dma transactions.

This patch improves tasklet logic and prevents above described cases.

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu

crypto: omap-sham - remove dedicated queue handling tasklet

2011-06-29T23:44:04+00:00

Calling omap_sham_handle_queue from "done" tasklet should be done
after irq scheduled tasklet completes.
Having additional tasklet does not solve that issue because it might
be execute before.
So queue handling tasklet has been removed and functionality integrated
into single tasklet.

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu

crypto: omap-sham - remove unnecessary local variable

2011-06-29T23:44:03+00:00

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu

crypto: omap-sham - move some flags to device context

2011-06-29T23:44:03+00:00

Couple of context flags have been moved to device flags.
IRQ and tasklet handlers does not need to access request
context anymore.

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu

crypto: omap-sham - replace flags operation with atomic bit operations

2011-06-29T23:44:02+00:00

Some flags are changed in interrupt handlers and verified in the tasklet.
There might be a race condition when tasklet is interrupted or another
cpu/core will run IRQ handler and tasklet in parallel.
Atomic bitops functions are now used instead of bitmask operations.

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu

crypto: omap-sham - replace flags bit mask with bit number

2011-06-29T23:44:02+00:00

Flags mask cannot be used with atomic bit operations.
This patch changes masks to bit numbers.
Atomic bit operations will be used by following patches.

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu

crypto: omap-sham - remove unused code

2011-06-29T23:44:02+00:00

Signed-off-by: Dmitry Kasatkin 
Signed-off-by: Herbert Xu