In cases where requesting for DMA channels fails for some reason, or channel
numbers are not provided in DT or platform data, we switch to PIO-only mode
also checking if platform provides IRQ numbers and interrupt register offsets
in DT and platform data. All dma-only paths are avoided in this mode
We initialize the scatter gather walk lists needed for PIO mode
and avoid all DMA paths such as mapping/unmapping buffers by
checking for the pio_only flag.
Signed-off-by: Joel Fernandes
---
drivers/crypto/omap-aes.c | 43 ++-
1 file changed, 30 insertio
Add IRQ information to pdata and helper macros. These are
required for PIO-mode support.
Signed-off-by: Joel Fernandes
---
drivers/crypto/omap-aes.c |8
1 file changed, 8 insertions(+)
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index 71da52b..c057eac 100644
When DEBUG is enabled, these macros can be used to print variables
in integer and hex format, and clearly display which registers,
offsets and values are being read/written , including printing the
names of the offsets and their values.
Signed-off-by: Joel Fernandes
---
drivers/crypto/omap-aes.c
We add an IRQ handler that implements a state-machine for PIO-mode
and data structures for walking the scatter-gather list. The IRQ handler
is called in succession both when data is available to read or next
data can be sent for processing. This process continues till the entire
in/out SG lists hav
On Wed, 2013-08-14 at 18:12 -0500, Joel Fernandes wrote:
> When DEBUG is enabled, these macros can be used to print variables
> in integer and hex format, and clearly display which registers,
> offsets and values are being read/written , including printing the
> names of the offsets and their value
On 08/14/2013 06:12 PM, Joel Fernandes wrote:
> This patch series is a rewrite of the DMA portion of omap-aes driver
> and also adds support for PIO mode. Both these modes, give better
> performance than before.
>
> Earlier, only a single SG was used for DMA purpose, and the SG-list
> passed from
On 08/14/2013 06:29 PM, Joe Perches wrote:
> On Wed, 2013-08-14 at 18:12 -0500, Joel Fernandes wrote:
>> When DEBUG is enabled, these macros can be used to print variables
>> in integer and hex format, and clearly display which registers,
>> offsets and values are being read/written , including pri
On Wed, 2013-08-14 at 18:40 -0500, Joel Fernandes wrote:
> On 08/14/2013 06:29 PM, Joe Perches wrote:
> > On Wed, 2013-08-14 at 18:12 -0500, Joel Fernandes wrote:
> >> When DEBUG is enabled, these macros can be used to print variables
> >> in integer and hex format, and clearly display which regist
On 08/14/2013 07:47 PM, Joe Perches wrote:
> On Wed, 2013-08-14 at 18:40 -0500, Joel Fernandes wrote:
>> On 08/14/2013 06:29 PM, Joe Perches wrote:
>>> On Wed, 2013-08-14 at 18:12 -0500, Joel Fernandes wrote:
When DEBUG is enabled, these macros can be used to print variables
in integer an
On 15/08/13 02:30, Joel Fernandes wrote:
> On 08/14/2013 06:12 PM, Joel Fernandes wrote:
>> This patch series is a rewrite of the DMA portion of omap-aes driver
>> and also adds support for PIO mode. Both these modes, give better
>> performance than before.
>>
>> Earlier, only a single SG was used
On 15/08/13 06:12, Joel Fernandes wrote:
> On 08/14/2013 07:47 PM, Joe Perches wrote:
>> On Wed, 2013-08-14 at 18:40 -0500, Joel Fernandes wrote:
>>> On 08/14/2013 06:29 PM, Joe Perches wrote:
On Wed, 2013-08-14 at 18:12 -0500, Joel Fernandes wrote:
> When DEBUG is enabled, these macros ca
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