DMA is set to use burst mode also for source channel. It should
descrease memory bandwidth needs.

DMA synchronization is set to use prefetch mechanism. SHAM block is behind
L4 bus and it doesn't have fifo. SHAM block is stalling as long as the new
data is available. It takes time to fetch data from memory and transfer it
via L4 bus. With prefetch enabled, data is waiting in DMA fifo and SHAM block
receives new data block faster.
This increases SHA processing speed up to 30 percent depending on the
bus / memory load.
Signed-off-by: NSamu Onkalo <samu.p.onkalo@nokia.com>
Signed-off-by: NDmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: NDmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Both of_bus_type and of_platform_bus_type are just #define aliases
for the platform bus.  This patch removes all references to them and
switches to the of_register_platform_driver()/of_unregister_platform_driver()
API for registering.

Subsequent patches will convert each user of of_register_platform_driver()
into plain platform_drivers without the of_platform_driver shim.  At which
point the of_register_platform_driver()/of_unregister_platform_driver()
functions can be removed.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NDavid S. Miller <davem@davemloft.net>

In function sg_copy_end_to_buffer, too much data
is copied when a segment in the scatterlist
has .length greater than the requested copy length.

This patch adds the limit checks to fix this bug of over copying,
which affected only the ahash algorithms.
Signed-off-by: NLee Nipper <lee.nipper@gmail.com>
Acked-by: NKim Phillips <kim.phillips@freescale.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

This patch converts pci_table entries, where .subvendor=PCI_ANY_ID and
.subdevice=PCI_ANY_ID, .class=0 and .class_mask=0, to use the
PCI_VDEVICE macro, and thus improves readability.
Signed-off-by: NPeter Huewe <peterhuewe@gmx.de>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The below patch gets rid of an unused variable ctx reported by
GCC when building the kernel.
  CC [M]  drivers/crypto/hifn_795x.o
drivers/crypto/hifn_795x.c: In function 'hifn_flush':
drivers/crypto/hifn_795x.c:2021:23: warning: variable 'ctx' set but not used
drivers/crypto/hifn_795x.c: In function 'hifn_process_queue':
drivers/crypto/hifn_795x.c:2142:23: warning: variable 'ctx' set but not used
Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Correct ahash_process_req() to properly handle cases
where the total hash amount is a multiple of the blocksize.
The SEC must have some data to hash during the very last
descriptor operation; so up to one whole blocksize
of data is buffered until the final hash.
Signed-off-by: NLee Nipper <lee.nipper@gmail.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Fixes build error caused by the OF device_node
pointer being moved into struct device
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Fixes build error caused by the OF device_node
pointer being moved into struct device
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

The error handling in mv_probe() was a bit messed up.  There were some 
gotos to the wrong labels so it ended up releasing stuff that that hadn't
been aquired and not releasing stuff that was meant to be released.  I
shuffled it around a bit to fix it and make it clearer.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Remove unused #include <linux/version.h>('s) in
  drivers/crypto/omap-sham.c
Signed-off-by: NHuang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

One note is that, unlike with non-HMAC hashes, we can't support
hmac(sha224) using the HMAC_SHA256 opcode.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

All of the ahash ->digest() ops do essentially the same thing, just
using different parameters.

So instead, have a single n2_hash_async_digest() and use an
n2_ahash_alg container that provides the parameters.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Unused, and we'll do this via the request context.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Do this by putting the async fallback request at the end of an n2
specific ahash request context, then properly adjusting the request
private size in our ahash ->cra_init().

We also need to put the writable state bits into the n2 request
private instead of the n2 cra_ctx.

With help from Herbert Xu.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Both the CWQ and MAU caches unintentionally had that same name.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

.name, .match_table and .owner are duplicated in both of_platform_driver
and device_driver.  This patch is a removes the extra copies from struct
of_platform_driver and converts all users to the device_driver members.

This patch is a pretty mechanical change.  The usage model doesn't change
and if any drivers have been missed, or if anything has been fixed up
incorrectly, then it will fail with a compile time error, and the fixup
will be trivial.  This patch looks big and scary because it touches so
many files, but it should be pretty safe.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NSean MacLennan <smaclennan@pikatech.com>

SEC h/w versions 2.1 and above support sha224 via explicit instruction.

Performing sha224 ahashes on earlier versions is still possible because
they support sha256 (sha224 is sha256 with different initial constants
and a different truncation length).  We do this by overriding hardware
context self-initialization, and perform it manually in s/w instead.

Thanks to Lee for his fixes for correct execution on actual sec2.0 h/w.
Signed-off-by: NKim Phillips <kim.phillips@freescale.com>
Signed-off by: Lee Nipper <lee.nipper@gmail.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Add the following alorithms to talitos:
    md5,
    sha1,
    sha256,
    sha384,
    sha512.
These are all type ahash.
Signed-off-by: NLee Nipper <lee.nipper@gmail.com>
Acked-By: NKim Phillips <kim.phillips@freescale.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Used talitos_alg_template in talitos_crypto_alg
so that it will accommodate ahash algorithms.
Added some preparation code for ahash allocation and removal.
No actual algorithms yet.
Signed-off-by: NLee Nipper <lee.nipper@gmail.com>
Acked-By: NKim Phillips <kim.phillips@freescale.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

No functional changes.
Use a union in talitos_alg_template for the crypto_alg
so that we can add a member later for ahash_alg.
Signed-off-by: NLee Nipper <lee.nipper@gmail.com>
Acked-By: NKim Phillips <kim.phillips@freescale.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Current deficiencies:

1) No HMAC hash support yet.

2) Although the algs are registered as ASYNC they always run
   synchronously.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

This is in preparation for the generic ablkcipher_walk helpers that
will be added to the crypto layer.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The following structure elements duplicate the information in
'struct device.of_node' and so are being eliminated.  This patch
makes all readers of these elements use device.of_node instead.

(struct of_device *)->node
(struct dev_archdata *)->prom_node (sparc)
(struct dev_archdata *)->of_node (powerpc & microblaze)
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Use the resource_size function instead of manually calculating the
resource size. This reduces the chance of introducing off-by-one errors.
Signed-off-by: NTobias Klauser <tklauser@distanz.ch>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Earlier kernel contained omap sha1 and md5 driver, which was not maintained,
was not ported to new crypto APIs and removed from the source tree.

- implements async  crypto API using dma and cpu.
- supports multiple sham instances if available
- hmac
- concurrent requests
Signed-off-by: NDmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

This fixes some code style issues like:

- Use #include <linux/io.h> instead of <asm/io.h> and #include
  <linux/delay.h> instead of <asm/delay.h>

- Use "foo *bar" instead of "foo * bar"

- Add a space after the for or while sentence and before the open
  parenthesis '('

- Don't use assignments in a if condition
Signed-off-by: NChihau Chau <chihau@gmail.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Add sha1 and hmac(sha1) async hash drivers
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Support processing of data from previous requests (as in hashing
update/final requests).
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Make the copy-back of data optional (not done in hashing requests)
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Execute some code via function pointers rathr than direct calls
(to allow customization in the hashing request)
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Rename a variable to a more suitable name
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Enqueue generic async requests rather than ablkcipher requests
in the driver's queue
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Fix for situations where the source scatterlist spans more data than the
request nbytes
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

crypto: mv_cesa - Fix situation where the dest sglist is organized differently than the source sglist

Bugfix for situations where the destination scatterlist has a different
buffer structure than the source scatterlist (e.g. source has one 2K
buffer and dest has 2 1K buffers)
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Remove compiler warning
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Invoke the user callback from a softirq context
Signed-off-by: NUri Simchoni <uri@jdland.co.il>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>