Commit Graph

749 Commits

Author SHA1 Message Date
Horia Geanta 935e99a3af crypto: talitos - corrrectly handle zero-length assoc data
talitos does not handle well zero-length assoc data. From dmesg:
talitos ffe30000.crypto: master data transfer error
talitos ffe30000.crypto: gather return/length error

Check whether assoc data is provided by inspecting assoclen,
not assoc pointer.
This is needed in order to pass testmgr tests.

Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-11-28 22:25:16 +08:00
Michael Neuling 6c5dc7f8af crypto: caam - Add missing Job Ring include
linuxnext currently doesn't compile with the powerpc mpc85xx_defconfig
giving:

  drivers/crypto/caam/jr.c: In function 'caam_jr_probe':
  drivers/crypto/caam/jr.c:468:2: error: implicit declaration of function 'of_iomap' [-Werror=implicit-function-declaration]

In:
  commit 313ea293e9
  Author: Ruchika Gupta <ruchika.gupta@freescale.com>
  crypto: caam - Add Platform driver for Job Ring

We added a reference to of_iomap but did add the necessary include file.

The below adds this include.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-11-26 20:59:27 +08:00
Linus Torvalds 26b265cd29 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 - Made x86 ablk_helper generic for ARM
 - Phase out chainiv in favour of eseqiv (affects IPsec)
 - Fixed aes-cbc IV corruption on s390
 - Added constant-time crypto_memneq which replaces memcmp
 - Fixed aes-ctr in omap-aes
 - Added OMAP3 ROM RNG support
 - Add PRNG support for MSM SoC's
 - Add and use Job Ring API in caam
 - Misc fixes

[ NOTE! This pull request was sent within the merge window, but Herbert
  has some questionable email sending setup that makes him public enemy
  #1 as far as gmail is concerned.  So most of his emails seem to be
  trapped by gmail as spam, resulting in me not seeing them.  - Linus ]

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (49 commits)
  crypto: s390 - Fix aes-cbc IV corruption
  crypto: omap-aes - Fix CTR mode counter length
  crypto: omap-sham - Add missing modalias
  padata: make the sequence counter an atomic_t
  crypto: caam - Modify the interface layers to use JR API's
  crypto: caam - Add API's to allocate/free Job Rings
  crypto: caam - Add Platform driver for Job Ring
  hwrng: msm - Add PRNG support for MSM SoC's
  ARM: DT: msm: Add Qualcomm's PRNG driver binding document
  crypto: skcipher - Use eseqiv even on UP machines
  crypto: talitos - Simplify key parsing
  crypto: picoxcell - Simplify and harden key parsing
  crypto: ixp4xx - Simplify and harden key parsing
  crypto: authencesn - Simplify key parsing
  crypto: authenc - Export key parsing helper function
  crypto: mv_cesa: remove deprecated IRQF_DISABLED
  hwrng: OMAP3 ROM Random Number Generator support
  crypto: sha256_ssse3 - also test for BMI2
  crypto: mv_cesa - Remove redundant of_match_ptr
  crypto: sahara - Remove redundant of_match_ptr
  ...
2013-11-23 16:18:25 -08:00
Wolfram Sang 16735d022f tree-wide: use reinit_completion instead of INIT_COMPLETION
Use this new function to make code more comprehensible, since we are
reinitialzing the completion, not initializing.

[akpm@linux-foundation.org: linux-next resyncs]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-15 09:32:21 +09:00
Linus Torvalds 8ceafbfa91 Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm
Pull DMA mask updates from Russell King:
 "This series cleans up the handling of DMA masks in a lot of drivers,
  fixing some bugs as we go.

  Some of the more serious errors include:
   - drivers which only set their coherent DMA mask if the attempt to
     set the streaming mask fails.
   - drivers which test for a NULL dma mask pointer, and then set the
     dma mask pointer to a location in their module .data section -
     which will cause problems if the module is reloaded.

  To counter these, I have introduced two helper functions:
   - dma_set_mask_and_coherent() takes care of setting both the
     streaming and coherent masks at the same time, with the correct
     error handling as specified by the API.
   - dma_coerce_mask_and_coherent() which resolves the problem of
     drivers forcefully setting DMA masks.  This is more a marker for
     future work to further clean these locations up - the code which
     creates the devices really should be initialising these, but to fix
     that in one go along with this change could potentially be very
     disruptive.

  The last thing this series does is prise away some of Linux's addition
  to "DMA addresses are physical addresses and RAM always starts at
  zero".  We have ARM LPAE systems where all system memory is above 4GB
  physical, hence having DMA masks interpreted by (eg) the block layers
  as describing physical addresses in the range 0..DMAMASK fails on
  these platforms.  Santosh Shilimkar addresses this in this series; the
  patches were copied to the appropriate people multiple times but were
  ignored.

  Fixing this also gets rid of some ARM weirdness in the setup of the
  max*pfn variables, and brings ARM into line with every other Linux
  architecture as far as those go"

* 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm: (52 commits)
  ARM: 7805/1: mm: change max*pfn to include the physical offset of memory
  ARM: 7797/1: mmc: Use dma_max_pfn(dev) helper for bounce_limit calculations
  ARM: 7796/1: scsi: Use dma_max_pfn(dev) helper for bounce_limit calculations
  ARM: 7795/1: mm: dma-mapping: Add dma_max_pfn(dev) helper function
  ARM: 7794/1: block: Rename parameter dma_mask to max_addr for blk_queue_bounce_limit()
  ARM: DMA-API: better handing of DMA masks for coherent allocations
  ARM: 7857/1: dma: imx-sdma: setup dma mask
  DMA-API: firmware/google/gsmi.c: avoid direct access to DMA masks
  DMA-API: dcdbas: update DMA mask handing
  DMA-API: dma: edma.c: no need to explicitly initialize DMA masks
  DMA-API: usb: musb: use platform_device_register_full() to avoid directly messing with dma masks
  DMA-API: crypto: remove last references to 'static struct device *dev'
  DMA-API: crypto: fix ixp4xx crypto platform device support
  DMA-API: others: use dma_set_coherent_mask()
  DMA-API: staging: use dma_set_coherent_mask()
  DMA-API: usb: use new dma_coerce_mask_and_coherent()
  DMA-API: usb: use dma_set_coherent_mask()
  DMA-API: parport: parport_pc.c: use dma_coerce_mask_and_coherent()
  DMA-API: net: octeon: use dma_coerce_mask_and_coherent()
  DMA-API: net: nxp/lpc_eth: use dma_coerce_mask_and_coherent()
  ...
2013-11-14 07:55:21 +09:00
Rob Herring c11eede69b powerpc: add missing explicit OF includes for ppc
Commit b5b4bb3f6a (of: only include prom.h on sparc) removed implicit
includes of of_*.h headers by powerpc's prom.h. Some components were
missed in initial clean-up patch, so add the necessary includes to fix
powerpc builds.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-ide@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
2013-11-11 09:10:50 -06:00
Rob Herring b5480950c6 Merge remote-tracking branch 'grant/devicetree/next' into for-next 2013-11-07 10:34:46 -06:00
Russell King 27c1789ca6 DMA-API: crypto: remove last references to 'static struct device *dev'
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-31 14:49:11 +00:00
Russell King d8cbc3f792 DMA-API: crypto: fix ixp4xx crypto platform device support
Don't statically allocate struct device's in modules, and shut the
warning up with an empty release() function.  There's a reason that
warning is there and that's not for people to hide in this way.  It's
there to persuade people to use the correct APIs to allocate platform
devices.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-31 14:49:09 +00:00
Joel Fernandes 8ed49c7675 crypto: omap-aes - Fix CTR mode counter length
NIST vectors for CTR mode in testmgr.h assume the entire IV as the counter. To
get correct results that match the output of these vectors, we need to set the
counter length correctly.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-30 12:02:59 +08:00
Joni Lapilainen 718249d7f0 crypto: omap-sham - Add missing modalias
Signed-off-by: Joni Lapilainen <joni.lapilainen@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-30 12:02:59 +08:00
Ruchika Gupta cfc6f11b76 crypto: caam - Modify the interface layers to use JR API's
- Earlier interface layers - caamalg, caamhash, caamrng were
  directly using the Controller driver private structure to access
  the Job ring.
- Changed the above to use alloc/free API's provided by Job Ring Drive

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Garg Vakul-B16394 <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-30 12:02:58 +08:00
Ruchika Gupta 07defbfb0f crypto: caam - Add API's to allocate/free Job Rings
With each of the Job Ring available as a platform device, the
Job Ring driver needs to take care of allocation/deallocation
of the Job Rings to the above interface layers. Added APIs
in Job Ring Driver to allocate/free Job rings

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Garg Vakul-B16394 <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-30 12:02:57 +08:00
Ruchika Gupta 313ea293e9 crypto: caam - Add Platform driver for Job Ring
The SEC Job Rings are now available as individual devices.
This would enable sharing of job rings between kernel and
user space. Job Rings can now be dynamically bound/unbound
from kernel.

Changes are made in the following layers of CAAM Driver
1. Controller driver
        - Does basic initialization of CAAM Block.
        - Creates platform devices for Job Rings.
(Earlier the initialization of Job ring  was done
 by the controller driver)

2. JobRing Platform driver
        - Manages the platform Job Ring devices created
          by the controller driver

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Garg Vakul-B16394 <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-30 12:02:57 +08:00
Thierry Reding f7578496a6 of/irq: Use irq_of_parse_and_map()
Replace some instances of of_irq_map_one()/irq_create_of_mapping() and
of_irq_to_resource() by the simpler equivalent irq_of_parse_and_map().

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
[grant.likely: resolved conflicts with core code renames]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
2013-10-24 11:50:35 +01:00
Mathias Krause c306a98d63 crypto: talitos - Simplify key parsing
Use the common helper function crypto_authenc_extractkeys() for key
parsing.

Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-16 20:56:26 +08:00
Mathias Krause ab827fb399 crypto: picoxcell - Simplify and harden key parsing
Use the common helper function crypto_authenc_extractkeys() for key
parsing. Also ensure the auth key won't overflow the hash_ctx buffer.

Cc: Jamie Iles <jamie@jamieiles.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-16 20:56:26 +08:00
Mathias Krause 56902781cd crypto: ixp4xx - Simplify and harden key parsing
Use the common helper function crypto_authenc_extractkeys() for key
parsing. Also ensure the keys do fit into the corresponding buffers.
Otherwise memory corruption might occur.

Cc: Christian Hohnstaedt <chohnstaedt@innominate.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-16 20:56:26 +08:00
Michael Opdenacker 6d3aab4ebe crypto: mv_cesa: remove deprecated IRQF_DISABLED
This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-16 20:56:24 +08:00
Rob Herring 5af5073004 drivers: clean-up prom.h implicit includes
Powerpc is a mess of implicit includes by prom.h. Add the necessary
explicit includes to drivers in preparation of prom.h cleanup.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
2013-10-09 20:04:04 -05:00
Sachin Kamat 165c70f07f crypto: mv_cesa - Remove redundant of_match_ptr
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-07 14:17:08 +08:00
Sachin Kamat 1b0b2605a9 crypto: sahara - Remove redundant of_match_ptr
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-07 14:17:07 +08:00
Fabio Estevam ac1ed0c0e1 crypto: dcp - Check the return value from devm_ioremap_resource()
devm_ioremap_resource() may fail, so better check its return value and propagate
it in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-10-07 14:16:54 +08:00
Fabio Estevam 48e6dc1b2a crypto: dcp - Fix the path for releasing the resources
tasklet_kill() is not being called in probe and the remove function releases
the resources in the wrong order.

Fix these issues.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-24 06:02:25 +10:00
Fabio Estevam 0ff647551b crypto: dcp - Use devm_request_irq()
Using Use devm_request_irq() can make the code smaller and simpler, as we do
not need to call free_irq() in the probe error path and in the remove function.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-24 06:02:25 +10:00
Fabio Estevam 05a27928f3 crypto: dcp - Use devm_ioremap_resource()
Using devm_ioremap_resource() can make the code simpler and smaller.

When devm_ioremap_resource() is used there is no need to explicitely check the
error returned by platform_get_resource().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-24 06:02:24 +10:00
Sachin Kamat 02e28cd71a crypto: tegra-aes - Use devm_clk_get
devm_clk_get is device managed and makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-24 06:02:22 +10:00
Sachin Kamat 6665ad20f0 crypto: tegra-aes - Fix NULL pointer dereference
'dd' is tested for NULL. However, it is derefenced in the error
message print. Change the print to pr_err to avoid this.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-24 06:02:22 +10:00
Sachin Kamat 4903e9694d crypto: tegra-aes - Staticize tegra_aes_cra_exit
'tegra_aes_cra_exit' is used only in this file.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-24 06:02:22 +10:00
Sachin Kamat 034568e84f crypto: omap-aes - Staticize local symbols
Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-24 06:02:21 +10:00
Sachin Kamat 47aff65241 crypto: mv_cesa - Staticize local symbols
Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-24 06:02:21 +10:00
Yashpal Dutta 82ad6bcade crypto: caam - map src buffer before access
KMap the buffers before copying trailing bytes during hmac into a session
temporary buffer. This is required if pinned buffer from user-space is send
during hmac and is safe even if hmac request is generated from within kernel.

Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-24 06:02:20 +10:00
Alex Porosanu 1005bccd7a crypto: caam - enable instantiation of all RNG4 state handles
RNG4 block contains multiple (i.e. 2) state handles that can be
initialized. This patch adds the necessary code for detecting
which of the two state handles has been instantiated by another
piece of software e.g. u-boot and instantiate the other one (or
both if none was instantiated). Only the state handle(s)
instantiated by this driver will be deinstantiated when removing
the module.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-13 21:43:56 +10:00
Alex Porosanu f1157a5bf3 crypto: caam - fix RNG4 AAI defines
RNG4 defines in desc.h were incomplete (bits AI & PS were missing),
while SK was set as an ALG related bit. This patchs adds the
missing bits and corrects the SK bit.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-13 21:43:55 +10:00
Alex Porosanu b1f996e0b3 crypto: caam - uninstantiate RNG state handle 0 if instantiated by caam driver
If the caam driver module instantiates the RNG state handle 0, then
upon the removal of the module, the RNG state handle is left
initialized. This patch takes care of reverting the state of the
handle back to its previous uninstantatied state.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-13 21:43:55 +10:00
Alex Porosanu 04cddbfe6b crypto: caam - split RNG4 instantiation function
This patch splits the RNG4 state handle instantiation
function into two parts: one that handles the creation
of the descriptor which instructs the CAAM to perform
the instantiation of the state handle and another
function that performs the running of the said descriptor
using the DECO debug mechanism.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-13 21:43:55 +10:00
Alex Porosanu 84cf48278b crypto: caam - fix RNG4 instantiation
The RNG4 block in CAAM needs to be 'seeded' first before being used
for generating pseudo-random data. The 'seeding' is done by getting
entropy from the TRNG ring oscillator. The RTFRQMAX register controls
the maximum allowable number of samples that can be aquired during
an entropy sample. Depending on the clock at which the RNG4 block
(and for that matter the SEC block) runs, it's possible that a
hard-coded value for the maximum frequency is inadequate, i.e. more
samples than needed are taken. This is an error, and thus the RNG4
block doesn't get initialized.  The patch attempts to alleviate
this issue by trying with progressivly larger frequencies, until
the number of samples is adequate.
This patch also fixes how a descriptor is deemed as being finished:
instead of checking the VALID field in the DECO debug register,
it makes sure that the DECO is idle, by checking the DECO state field
of the said register.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-13 21:43:54 +10:00
Alex Porosanu b2744dfd39 crypto: caam - fix hash, alg and rng registration if CAAM driver not initialized
If the CAAM driver initialization failed (due to various reasons, e.g. RNG4
initialization failed), then the registration of hash/algorithms/rng shouldn't
take place. This patch adds the necessary code to prevent this registration.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-13 21:43:54 +10:00
Alex Porosanu d5e4e999cd crypto: caam - fix RNG state handle instantiation descriptor
The way the DECO runs a descriptor through the direct (debug)
interface is different from the JRI interface: the DECO will
continue to try and execute the next commands, after the descriptor
buffer has ended. This leads to unpredictable results and possibly
to locking up of the DECO. This patch adds a halt command at the
end of the descriptor to ensure the DECO halts when it reaches
the end of the descriptor buffer.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-13 21:43:53 +10:00
Linus Walleij f5b38c5f19 crypto: tegra - use kernel entropy instead of ad-hoc
The way I read the Tegra AES RNG is that it has a homebrew
algorithm for initializing the 128bit RNG using timespec and
the unique chip ID. This looks like reinventing the (square)
wheel, instead just grab 128bits from the kernel entropy pool
where the time and (after another patch) chip unique ID is
already mixed in.

Incidentally this also gets rid of a rather ugly
cross-dependence on the machine using an extern declaration.

Cc: Varun Wadekar <vwadekar@nvidia.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-13 21:43:53 +10:00
Herbert Xu eeca9fad52 Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Merge upstream tree in order to reinstate crct10dif.
2013-09-07 12:53:35 +10:00
Marcelo Cerri 069fa0453f crypto: nx - fix SHA-2 for chunks bigger than block size
Each call to the co-processor, with exception of the last call, needs to
send data that is multiple of block size. As consequence, any remaining
data is kept in the internal NX context.

This patch fixes a bug in the driver that causes it to save incorrect
data into the context when data is bigger than the block size.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:56 +10:00
Marcelo Cerri dec0ed6c1b crypto: nx - fix GCM for zero length messages
The NX CGM implementation doesn't support zero length messages and the
current implementation has two flaws:

 - When the input data length is zero, it ignores the associated data.
 - Even when both lengths are zero, it uses the Crypto API to encrypt a
   zeroed block using ctr(aes) and because of this it allocates a new
   transformation and sets the key for this new tfm. Both operations are
   intended to be used only in user context, while the cryptographic
   operations can be called in both user and softirq contexts.

This patch replaces the nested Crypto API use and adds two special
cases:

 - When input data and associated data lengths are zero: it uses NX ECB
   mode to emulate the encryption of a zeroed block using ctr(aes).
 - When input data is zero and associated data is available: it uses NX
   GMAC mode to calculate the associated data MAC.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:55 +10:00
Marcelo Cerri 41e3173daf crypto: nx - fix XCBC for zero length messages
The NX XCBC implementation doesn't support zero length messages and
because of that NX is currently returning a hard-coded hash for zero
length messages. However this approach is incorrect since the hash value
also depends on which key is used.

This patch removes the hard-coded hash and replace it with an
implementation based on the RFC 3566 using ECB.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:55 +10:00
Fionnuala Gunter 2b188b3b86 crypto: nx - fix limits to sg lists for AES-CCM
This patch updates the NX driver to perform several hyper calls when necessary
so that the length limits of scatter/gather lists are respected.

Reviewed-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Fionnuala Gunter <fin@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:54 +10:00
Fionnuala Gunter 9d6f1a82d3 crypto: nx - fix limits to sg lists for AES-XCBC
This patch updates the NX driver to perform several hyper calls when necessary
so that the length limits of scatter/gather lists are respected.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Reviewed-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Fionnuala Gunter <fin@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:54 +10:00
Marcelo Cerri 799804348d crypto: nx - fix limits to sg lists for AES-GCM
This patch updates the nx-aes-gcm implementation to perform several
hyper calls if needed in order to always respect the length limits for
scatter/gather lists.

Two different limits are considered:

 - "ibm,max-sg-len": maximum number of bytes of each scatter/gather
   list.

 - "ibm,max-sync-cop":
    - The total number of bytes that a scatter/gather list can hold.
    - The maximum number of elements that a scatter/gather list can have.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:54 +10:00
Marcelo Cerri 884d981b04 crypto: nx - fix limits to sg lists for AES-CTR
This patch updates the nx-aes-ctr implementation to perform several
hyper calls if needed in order to always respect the length limits for
scatter/gather lists.

Two different limits are considered:

 - "ibm,max-sg-len": maximum number of bytes of each scatter/gather
   list.

 - "ibm,max-sync-cop":
    - The total number of bytes that a scatter/gather list can hold.
    - The maximum number of elements that a scatter/gather list can have.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:53 +10:00
Marcelo Cerri 2d290f0240 crypto: nx - fix limits to sg lists for AES-CBC
This patch updates the nx-aes-cbc implementation to perform several
hyper calls if needed in order to always respect the length limits for
scatter/gather lists.

Two different limits are considered:

 - "ibm,max-sg-len": maximum number of bytes of each scatter/gather
   list.

 - "ibm,max-sync-cop":
    - The total number of bytes that a scatter/gather list can hold.
    - The maximum number of elements that a scatter/gather list can have.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:53 +10:00
Marcelo Cerri ab74175938 crypto: nx - fix limits to sg lists for AES-ECB
This patch updates the nx-aes-ecb implementation to perform several
hyper calls if needed in order to always respect the length limits for
scatter/gather lists.

Two different limits are considered:

 - "ibm,max-sg-len": maximum number of bytes of each scatter/gather
   list.

 - "ibm,max-sync-cop":
    - The total number of bytes that a scatter/gather list can hold.
    - The maximum number of elements that a scatter/gather list can have.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:52 +10:00
Marcelo Cerri a8fc391a15 crypto: nx - add offset to nx_build_sg_lists()
This patch includes one more parameter to nx_build_sg_lists() to skip
the given number of bytes from beginning of each sg list.

This is needed in order to implement the fixes for the AES modes to make
them able to process larger chunks of data.

Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-09-02 20:32:52 +10:00
Lokesh Vutla f5e4626097 crypto: omap-sham - correct dma burst size
Each cycle of SHA512 operates on 32 data words where as
SHA256 operates on 16 data words. This needs to be updated
while configuring DMA channels. Doing the same.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:08 +10:00
Lokesh Vutla b8411ccd61 crypto: omap-sham - Enable Polling mode if DMA fails
For writing input buffer into DATA_IN register current driver
has the following state machine:
-> if input buffer < 9 : use fallback driver
-> else if input buffer < block size : Copy input buffer into data_in regs
-> else use dma transfer.

In cases where requesting for DMA channels fails for some reason,
or channel numbers are not provided in DT or platform data, probe
also fails. Instead of returning from driver use cpu polling mode.
In this mode processor polls on INPUT_READY bit and writes data into
data_in regs when it equals 1. This operation is repeated until the
length of message.

Now the state machine looks like:
-> if input buffer < 9 : use fallback driver
-> else if input buffer < block size : Copy input buffer into data_in regs
-> else if dma enabled: use dma transfer
	   else use cpu polling mode.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:07 +10:00
Dan Carpenter 5bc3570374 crypto: tegra-aes - bitwise vs logical and
The bug here is that:

	while (eng_busy & (!icq_empty) & dma_busy)

is never true because it's using bitwise instead of logical ANDs.  The
other bitwise AND conditions work as intended but I changed them as well
for consistency.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:07 +10:00
Dan Carpenter 393e661d61 crypto: sahara - checking the wrong variable
There is a typo here.  "dev->hw_link[]" is an array, not a pointer, so
the check is nonsense.  We should be checking recently allocated
"dev->hw_link[0]" instead.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:06 +10:00
Joel Fernandes 1bbf643705 crypto: omap-aes - Kconfig: Add build support for AM437x
For AM437x SoC, ARCH_OMAP2 and ARCH_OMAP3 is not enabled in the defconfig. We
follow same thing as SHA driver, and add depends on ARCH_OMAP2PLUS so that the
config is selectable for AES driver on AM437x SoC builds.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:06 +10:00
Joel Fernandes bce2a22885 crypto: omap-aes - Convert request_irq to devm_request_irq
Keeps request_irq exit/error code paths simpler.

Suggested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:05 +10:00
Joel Fernandes 05007c10ff crypto: omap-aes - Convert kzalloc to devm_kzalloc
Use devm_kzalloc instead of kzalloc. With this change, there is no need to
call kfree in error/exit paths.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:05 +10:00
Joel Fernandes 6242332ff2 crypto: omap-aes - Add support for cases of unaligned lengths
For cases where offset/length of on any page of the input SG is not aligned by
AES_BLOCK_SIZE, we copy all the pages from the input SG list into a contiguous
buffer and prepare a single element SG list for this buffer with length as the
total bytes to crypt.

This is requried for cases such as when an SG list of 16 bytes total size
contains 16 pages each containing 1 byte. DMA using the direct buffers of such
instances is not possible.

For this purpose, we first detect if the unaligned case and accordingly
allocate enough number of pages to satisfy the request and prepare SG lists.
We then copy data into the buffer, and copy data out of it on completion.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:05 +10:00
Joel Fernandes 1801ad9483 crypto: omap-aes - Switch to PIO mode during probe
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.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:04 +10:00
Joel Fernandes 98837abc86 crypto: omap-aes - PIO mode: platform data for OMAP4/AM437x and trigger
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 <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:03 +10:00
Joel Fernandes 1bf95cca8f crypto: omap-aes - PIO mode: Add IRQ handler and walk SGs
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 have been
walked. Once the SG-list has been completely walked, the IRQ handler schedules
the done_task tasklet.

Also add a useful macro that is used through out the IRQ code for a common
pattern of calculating how much an SG list has been walked.  This improves code
readability and avoids checkpatch errors.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:03 +10:00
Joel Fernandes 67216756ea crypto: omap-aes - Add IRQ info and helper macros
Add IRQ information to pdata and helper macros. These are required
for PIO-mode support.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:01 +10:00
Joel Fernandes 0c063a22d5 crypto: omap-aes - Remove previously used intermediate buffers
Intermdiate buffers were allocated, mapped and used for DMA.  These are no
longer required as we use the SGs from crypto layer directly in previous
commits in the series. Also along with it, remove the logic for copying SGs
etc as they are no longer used, and all the associated variables in omap_aes_device.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:00 +10:00
Joel Fernandes 0a641712ef crypto: omap-aes - Sync SG before DMA operation
Earlier functions that did a similar sync are replaced by the dma_sync_sg_*
which can operate on entire SG list.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:28:00 +10:00
Joel Fernandes 4b645c9465 crypto: omap-aes - Simplify DMA usage by using direct SGs
In early version of this driver, assumptions were made such as DMA layer
requires contiguous buffers etc. Due to this, new buffers were allocated,
mapped and used for DMA. These assumptions are no longer true and DMAEngine
scatter-gather DMA doesn't have such requirements. We simply the DMA operations
by directly using the scatter-gather buffers provided by the crypto layer
instead of creating our own.

Lot of logic that handled DMA'ing only X number of bytes of the total, or as
much as fitted into a 3rd party buffer is removed and is no longer required.

Also, good performance improvement of atleast ~20% seen with encrypting a
buffer size of 8K (1800 ops/sec vs 1400 ops/sec).  Improvement will be higher
for much larger blocks though such benchmarking is left as an exercise for the
reader.  Also DMA usage is much more simplified and coherent with rest of the
code.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:27:59 +10:00
Joel Fernandes e77c756eca crypto: omap-aes - Populate number of SG elements
Crypto layer only passes nbytes but number of SG elements is needed for mapping
or unmapping SGs at one time using dma_map* API and also needed to pass in for
dmaengine prep function.

We call function added to scatterwalk for this purpose in omap_aes_handle_queue
to populate the values which are used later.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:27:59 +10:00
Joel Fernandes 016af9b5c5 crypto: omap-aes - Add useful debug macros
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.

Using statement expression macros in read path as,
Suggested-by: Joe Perches <joe@perches.com>

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:27:58 +10:00
jmlatten@linux.vnet.ibm.com b4eba0ca34 crypto: nx - fix nx-aes-gcm verification
This patch fixes a bug in the nx-aes-gcm implementation.
Corrected the code so that the authtag is always verified after
decrypting and not just when there is associated data included.
Also, corrected the code to retrieve the input authtag from src
instead of dst.

Reviewed-by: Fionnuala Gunter <fin@linux.vnet.ibm.com>
Reviewed-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:08:38 +10:00
Alex Porosanu d4d8edf885 crypto: caam - add option for enabling DEBUG mode
This patch adds an option to the Kconfig file for
SEC which enables the user to see the debug messages
that are printed inside the SEC driver.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:08:37 +10:00
Alex Porosanu 514df2816f crypto: caam - replace xstr macro with __stringify
CAAM driver contains one macro (xstr) used for printing
the line location in a file where a memdump is done. This patch
replaces the xstr macro with the already existing __stringify
macro that performs the same function.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-21 21:08:36 +10:00
Marcelo Cerri c849163b80 crypto: nx - fix concurrency issue
The NX driver uses the transformation context to store several fields
containing data related to the state of the operations in progress.
Since a single tfm can be used by different kernel threads at the same
time, we need to protect the data stored into the context.

This patch makes use of spin locks to protect the data where a race
condition can happen.

Reviewed-by: Fionnuala Gunter <fin@linux.vnet.ibm.com>
Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-14 20:42:04 +10:00
Jingoo Han 3a4eac799b crypto: crypto4xx - Staticize local symbols
These local symbols are used only in this file.
Fix the following sparse warnings:

drivers/crypto/amcc/crypto4xx_alg.c:35:6: warning: symbol 'set_dynamic_sa_command_0' was not declared. Should it be static?
drivers/crypto/amcc/crypto4xx_alg.c:55:6: warning: symbol 'set_dynamic_sa_command_1' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-14 20:42:03 +10:00
Jingoo Han e45f1d1879 crypto: sahara - Staticize local symbol
This local symbol is used only in this file.
Fix the following sparse warnings:

drivers/crypto/sahara.c:420:6: warning: symbol 'sahara_watchdog' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-14 20:42:02 +10:00
Fionnuala Gunter cc76daf793 crypto: nx - saves chaining value from co-processor
This patch fixes a bug that is triggered when cts(cbc(aes)) is used with
nx-crypto driver on input larger than 32 bytes.

The chaining value from co-processor was not being saved. This value is
needed because it is used as the IV by cts(cbc(aes)).

Signed-off-by: Fionnuala Gunter <fin@linux.vnet.ibm.com>
Reviewed-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-09 16:41:29 +10:00
Marcelo Cerri d311149337 crypto: nx - fix limits to sg lists for SHA-2
The co-processor has several limits regarding the length of
scatter/gather lists and the total number of bytes in it. These limits
are available in the device tree, as following:

 - "ibm,max-sg-len": maximum number of bytes of each scatter/gather
   list.

 - "ibm,max-sync-cop": used for synchronous operations, it is an array
   of structures that contains information regarding the limits that
   must be considered for each mode and operation. The most important
   limits in it are:
   	- The total number of bytes that a scatter/gather list can hold.
	- The maximum number of elements that a scatter/gather list can
	  have.

This patch updates the NX driver to perform several hyper calls if
needed in order to always respect the length limits for scatter/gather
lists.

Reviewed-by: Fionnuala Gunter <fin@linux.vnet.ibm.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-09 16:39:44 +10:00
Marcelo Cerri 2b7c15ca17 crypto: nx - fix physical addresses added to sg lists
The co-processor receives data to be hashed through scatter/gather lists
pointing to physical addresses. When a vmalloc'ed data is given, the
driver must calculate the physical address to each page of the data.

However the current version of it just calculates the physical address
once and keeps incrementing it even when a page boundary is crossed.
This patch fixes this behaviour.

Reviewed-by: Fionnuala Gunter <fin@linux.vnet.ibm.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-09 16:39:44 +10:00
Ruchika Gupta 6dad41158d crypto: caam - Remove unused functions from Job Ring
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-01 10:55:40 +10:00
Lokesh Vutla 7a7e4b73b5 crypto: omap-sham - Convert to devm_kzalloc()
Use devm_kzalloc() to make cleanup paths simpler.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-01 10:54:01 +10:00
Lokesh Vutla 0de9c3876b crypto: omap-sham - Convert to devm_request_irq()
Using devm_request_irq() rather than request_irq().
So removing free_irq() calls from the probe error
path and the remove handler.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-01 10:54:00 +10:00
Lokesh Vutla 7d7c704d0d crypto: omap-sham - Add OMAP5/AM43XX SHAM Support
Add support for the OMAP5 version of the SHAM module
that is present on OMAP5 and AM43xx SoCs.

This module is very simialar to OMAP4 version of SHAM module,
and adds SHA384 SHA512 hardware-accelerated hash functions to it.
To handle the higher digest size of SHA512, few SHA512_DIGEST_i
(i=1-16, and first 8 registers are duplicated from SHA_DIGEST_i
registers) registers are added at the end of register set.
So adding the above register offsets and module info in pdata.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-01 10:54:00 +10:00
Lokesh Vutla eaef7e3f3f crypto: omap-sham - Add SHA384 and SHA512 Support
Adding support for SHA348 and SHA512 in addition to MD5, SHA1, SHA224
SHA256 that the omap sha module supports.

In order to add the support
- Removed hard coded register offsets and passing offsets from pdata
- Updating Flag offsets so that they can be used for SHA256 and SHA512
- Adding the algo info.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-01 10:54:00 +10:00
Joe Perches 69d2884deb crypto: ux500 - Fix logging, make arrays const, neatening
Logging messages without newlines are possibly interleaved
with other messages.  Add terminating newlines to avoid
this.

Other miscellaneous changes:

Make arrays const to reduce data size
Add pr_fmt to prefix pr_<level>, remove now unused DEV_DBG_NAME
Coalesce formats, align arguments
Remove unnecessary OOM messages as dump_stack is already done
Remove unnecessary cast of void *
Change kzalloc(sizeof(struct)...) to kzalloc(sizeof(*var), ...)
Reduce indents in struct definitions

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-01 10:53:59 +10:00
Ruchika Gupta 997ad2900a crypto: caam - RNG instantiation by directly programming DECO
Remove the dependency of RNG instantiation on Job Ring. Now
RNG instantiation for devices with RNG version > 4 is done
by directly programming DECO 0.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-08-01 10:50:21 +10:00
Linus Torvalds b48a97be8e Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This push fixes a memory corruption issue in caam, as well as
  reverting the new optimised crct10dif implementation as it breaks boot
  on initrd systems.

  Hopefully crct10dif will be reinstated once the supporting code is
  added so that it doesn't break boot"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  Revert "crypto: crct10dif - Wrap crc_t10dif function all to use crypto transform framework"
  crypto: caam - Fixed the memory out of bound overwrite issue
2013-07-24 11:05:18 -07:00
Vakul Garg aa2faec1a0 crypto: caam - Moved macro DESC_JOB_IO_LEN to desc_constr.h
DESC_JOB_IO_LEN is a generic macro which indicates the space required in
the descriptor for placing SEQIN/OUT commands, job descriptor header,
shared descriptor pointer. Moving it to descriptor construction file
which can be supposedly included by different algo offload files.

Change-Id: Ic8900990d465e9079827b0c7fcacc61766d7efb6
Signed-off-by: Vakul Garg <vakul@freescale.com>
Reviewed-by: Geanta Neag Horia Ioan-B05471 <horia.geanta@freescale.com>
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Tested-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-07-10 16:53:28 +10:00
Vakul Garg 9c23b7d3d6 crypto: caam - Fixed the memory out of bound overwrite issue
When kernel is compiled with CONFIG_SLUB_DEBUG=y and
CRYPTO_MANAGER_DISABLE_TESTS=n, during kernel bootup, the kernel
reports error given below. The root cause is that in function
hash_digest_key(), for allocating descriptor, insufficient memory was
being allocated. The required number of descriptor words apart from
input and output pointers are 8 (instead of 6).

=============================================================================
BUG dma-kmalloc-32 (Not tainted): Redzone overwritten
-----------------------------------------------------------------------------

Disabling lock debugging due to kernel taint
INFO: 0xdec5dec0-0xdec5dec3. First byte 0x0 instead of 0xcc
INFO: Allocated in ahash_setkey+0x60/0x594 age=7 cpu=1 pid=1257
        __kmalloc+0x154/0x1b4
        ahash_setkey+0x60/0x594
        test_hash+0x260/0x5a0
        alg_test_hash+0x48/0xb0
        alg_test+0x84/0x228
        cryptomgr_test+0x4c/0x54
        kthread+0x98/0x9c
        ret_from_kernel_thread+0x64/0x6c
INFO: Slab 0xc0bd0ba0 objects=19 used=2 fp=0xdec5d0d0 flags=0x0081
INFO: Object 0xdec5dea0 @offset=3744 fp=0x5c200014

Bytes b4 dec5de90: 00 00 00 00 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a
........ZZZZZZZZ
Object dec5dea0: b0 80 00 0a 84 41 00 0d f0 40 00 00 00 67 3f c0
.....A...@...g?.
Object dec5deb0: 00 00 00 50 2c 14 00 50 f8 40 00 00 1e c5 d0 00
...P,..P.@......
Redzone dec5dec0: 00 00 00 14                                      ....
Padding dec5df68: 5a 5a 5a 5a 5a 5a 5a 5a
ZZZZZZZZ
Call Trace:
[dec65b60] [c00071b4] show_stack+0x4c/0x168 (unreliable)
[dec65ba0] [c00d4ec8] check_bytes_and_report+0xe4/0x11c
[dec65bd0] [c00d507c] check_object+0x17c/0x23c
[dec65bf0] [c0550a00] free_debug_processing+0xf4/0x294
[dec65c20] [c0550bdc] __slab_free+0x3c/0x294
[dec65c80] [c03f0744] ahash_setkey+0x4e0/0x594
[dec65cd0] [c01ef138] test_hash+0x260/0x5a0
[dec65e50] [c01ef4c0] alg_test_hash+0x48/0xb0
[dec65e70] [c01eecc4] alg_test+0x84/0x228
[dec65ee0] [c01ec640] cryptomgr_test+0x4c/0x54
[dec65ef0] [c005adc0] kthread+0x98/0x9c
[dec65f40] [c000e1ac] ret_from_kernel_thread+0x64/0x6c
FIX dma-kmalloc-32: Restoring 0xdec5dec0-0xdec5dec3=0xcc

Change-Id: I0c7a1048053e811025d1c3b487940f87345c8f5d
Signed-off-by: Vakul Garg <vakul@freescale.com>
CC: <stable@vger.kernel.org> #3.9
Reviewed-by: Geanta Neag Horia Ioan-B05471 <horia.geanta@freescale.com>
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Tested-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-07-10 16:47:13 +10:00
Akinobu Mita d05257238f crypto: talitos: use sg_pcopy_to_buffer()
Use sg_pcopy_to_buffer() which is better than the function previously used.
Because it doesn't do kmap/kunmap for skipped pages.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Horia Geanta <horia.geanta@freescale.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-09 10:33:30 -07:00
Linus Torvalds b2c311075d Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 - Do not idle omap device between crypto operations in one session.
 - Added sha224/sha384 shims for SSSE3.
 - More optimisations for camellia-aesni-avx2.
 - Removed defunct blowfish/twofish AVX2 implementations.
 - Added unaligned buffer self-tests.
 - Added PCLMULQDQ optimisation for CRCT10DIF.
 - Added support for Freescale's DCP co-processor
 - Misc fixes.

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (44 commits)
  crypto: testmgr - test hash implementations with unaligned buffers
  crypto: testmgr - test AEADs with unaligned buffers
  crypto: testmgr - test skciphers with unaligned buffers
  crypto: testmgr - check that entries in alg_test_descs are in correct order
  Revert "crypto: twofish - add AVX2/x86_64 assembler implementation of twofish cipher"
  Revert "crypto: blowfish - add AVX2/x86_64 implementation of blowfish cipher"
  crypto: camellia-aesni-avx2 - tune assembly code for more performance
  hwrng: bcm2835 - fix MODULE_LICENSE tag
  hwrng: nomadik - use clk_prepare_enable()
  crypto: picoxcell - replace strict_strtoul() with kstrtoul()
  crypto: dcp - Staticize local symbols
  crypto: dcp - Use NULL instead of 0
  crypto: dcp - Use devm_* APIs
  crypto: dcp - Remove redundant platform_set_drvdata()
  hwrng: use platform_{get,set}_drvdata()
  crypto: omap-aes - Don't idle/start AES device between Encrypt operations
  crypto: crct10dif - Use PTR_RET
  crypto: ux500 - Cocci spatch "resource_size.spatch"
  crypto: sha256_ssse3 - add sha224 support
  crypto: sha512_ssse3 - add sha384 support
  ...
2013-07-05 12:12:33 -07:00
Linus Torvalds 0bf6a210a4 ARM SoC driver specific changes
These changes are all driver specific and cross over between arm-soc
 contents and some other subsystem, in these cases cpufreq, crypto,
 dma, pinctrl, mailbox and usb, and the subsystem owners agreed to
 have these changes merged through arm-soc. As we proceed to untangle
 the dependencies between platform code and driver code, the amount of
 changes in this category is fortunately shrinking, for 3.11 we have
 16 branches here and 101 non-merge changesets, the majority of which
 are for the stedma40 dma engine driver used in the ux500 platform.
 Cleaning up that code touches multiple subsystems, but gets rid
 of the dependency in the end.
 
 The mailbox code moved out from mach-omap2 to drivers/mailbox
 is an intermediate step and is still omap specific at the moment.
 Patches exist to generalize the subsystem and add other drivers
 with the same API, but those did not make it for 3.11.
 
 Conflicts:
 * In cpu-db8500.c results from the removal of the u8500_of_init_devices
   function in combination with the split of u8500_auxdata_lookup.
 
 * In arch/arm/mach-omap2/devices.c, the includes got reshuffled.
   we need to keep linux/wl12xx.h and linux/platform_data/mailbox-omap.h.
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver specific changes from Arnd Bergmann:
 "These changes are all driver specific and cross over between arm-soc
  contents and some other subsystem, in these cases cpufreq, crypto,
  dma, pinctrl, mailbox and usb, and the subsystem owners agreed to have
  these changes merged through arm-soc.

  As we proceed to untangle the dependencies between platform code and
  driver code, the amount of changes in this category is fortunately
  shrinking, for 3.11 we have 16 branches here and 101 non-merge
  changesets, the majority of which are for the stedma40 dma engine
  driver used in the ux500 platform.  Cleaning up that code touches
  multiple subsystems, but gets rid of the dependency in the end.

  The mailbox code moved out from mach-omap2 to drivers/mailbox is an
  intermediate step and is still omap specific at the moment.  Patches
  exist to generalize the subsystem and add other drivers with the same
  API, but those did not make it for 3.11."

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (101 commits)
  crypto: ux500: use dmaengine_submit API
  crypto: ux500: use dmaengine_prep_slave_sg API
  crypto: ux500: use dmaengine_device_control API
  crypto: ux500/crypt: add missing __iomem qualifiers
  crypto: ux500/hash: add missing static qualifiers
  crypto: ux500/hash: use readl on iomem addresses
  dmaengine: ste_dma40: Declare memcpy config as static
  ARM: ux500: Remove mop500_snowball_ethernet_clock_enable()
  ARM: ux500: Correct the EN_3v3 regulator's on/off GPIO
  ARM: ux500: Provide a AB8500 GPIO Device Tree node
  gpio: rcar: fix gpio_rcar_of_table
  gpio-rcar: Remove #ifdef CONFIG_OF around OF-specific sections
  gpio-rcar: Reference core gpio documentation in the DT bindings
  clk: exynos5250: Add enum entries for divider clock of i2s1 and i2s2
  ARM: dts: Update Samsung I2S documentation
  ARM: dts: add clock provider information for i2s controllers in Exynos5250
  ARM: dts: add Exynos audio subsystem clock controller node
  clk: samsung: register audio subsystem clocks using common clock framework
  ARM: dts: use #include for all device trees for Samsung
  pinctrl: s3c24xx: use correct header for chained_irq functions
  ...
2013-07-02 14:33:21 -07:00
Olof Johansson 5c913a9a97 DMA40 fixes for earlier submitted driver patches:
- Fix various error path and sparse bugs in the DMA40 driver
 - Fix various compile errors in the ux500 crypto driver
   (dependent on the DMA40 changes).
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Merge tag 'ux500-dma40-for-arm-soc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/drivers

From Linus Walleij:
DMA40 fixes for earlier submitted driver patches:
- Fix various error path and sparse bugs in the DMA40 driver
- Fix various compile errors in the ux500 crypto driver
  (dependent on the DMA40 changes).

* tag 'ux500-dma40-for-arm-soc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  crypto: ux500: use dmaengine_submit API
  crypto: ux500: use dmaengine_prep_slave_sg API
  crypto: ux500: use dmaengine_device_control API
  crypto: ux500/crypt: add missing __iomem qualifiers
  crypto: ux500/hash: add missing static qualifiers
  crypto: ux500/hash: use readl on iomem addresses
  dmaengine: ste_dma40: Declare memcpy config as static
  dmaengine: ste_dma40: fix error return code in d40_probe()

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-25 11:20:15 -07:00
Fabio Baltieri 0656848329 crypto: ux500: use dmaengine_submit API
Use dmaengine_submit instead of calling desc->tx_submit manually.

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-25 14:51:34 +02:00
Fabio Baltieri 7e933d3b1e crypto: ux500: use dmaengine_prep_slave_sg API
Use dmaengine_prep_slave_sg inline function instead of going through the
structures manually.

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-25 14:51:30 +02:00
Fabio Baltieri 97453dfbbb crypto: ux500: use dmaengine_device_control API
Use dmaengine_device_control inline function instead of going through the
structures manually.

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-25 14:51:26 +02:00
Fabio Baltieri fe14ed43ee crypto: ux500/crypt: add missing __iomem qualifiers
Add missing __iomem to struct cryp_register pointers, this solve some
"incorrect type in initializer (different address spaces)" sparse
warnings.

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-25 14:51:22 +02:00
Fabio Baltieri 756bed2d0e crypto: ux500/hash: add missing static qualifiers
Add missing static qualifiers to hash_process_data and hash_hw_final.

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-25 14:51:17 +02:00
Fabio Baltieri e3f5114793 crypto: ux500/hash: use readl on iomem addresses
Always use readl when reading memory mapped registers.

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-25 14:50:54 +02:00
Herbert Xu 02c0241b60 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto
Merge crypto to resolve conflict in crypto/Kconfig.
2013-06-21 15:13:27 +08:00
Arnd Bergmann d5a51af940 mxs device tree changes for 3.11:
* A couple of new board support, cfa10055 and cfa10057
 * A few updates on cfa10036 device tree source
 * Some auart pinctrl data addition
 * Adopt soc bus infrastructure for mach-mxs
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Merge tag 'mxs-dt-3.11' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/dt

From Shawn Guo:

mxs device tree changes for 3.11:

* A couple of new board support, cfa10055 and cfa10057
* A few updates on cfa10036 device tree source
* Some auart pinctrl data addition
* Adopt soc bus infrastructure for mach-mxs

* tag 'mxs-dt-3.11' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: mxs: dt: Add Crystalfontz CFA-10057 device tree
  ARM: mxs: dt: Add the Crystalfontz CFA-10055 device tree
  ARM: cfa10049: Switch the chip select pin of the LCD controller
  ARM: cfa10036: Add USB0 OTG port
  ARM: dts: apf28dev: Add touchscreen support for APF28dev
  ARM: mxs: Fix UARTs on M28EVK
  ARM: cfa10036: dt: Change i2c0 clock frequency
  ARM: dts: cfa10036: Change the OLED display to SSD1306
  ARM: mx28: add auart4 2 pins pinmux to imx28.dtsi
  ARM: mx28: add auart3 2 pins pinmux to imx28.dtsi
  ARM: mx28: add auart2 2 pins pinmux to imx28.dtsi
  ARM: mxs: Use soc bus infrastructure
  ARM: dts: mx28: Adjust the digctl compatible string
  ARM: mxs: Remove init_irq declaration in machine description

Includes an update to 3.10-rc6

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20 02:06:36 +02:00
Olof Johansson 9440bd2342 Device tree patches for ux500, basically trees and auxdata:
- Fix for the thermal node to be contained in the PRCMU node
 - Add the DTS and auxdata needed to boot the U8540 platform
 - Various regulators added and renamed
 - Rename base SoC node
 - A bunch of DMA patches adding channels for DT boots
 - A bunch of crypto+hash patches adding config for DT boots
 - A bunch of patches fixing the ALSA SoC support to work
 - Register the LP5521 LEDs
 - Fix a number of typos and naming errors
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Merge tag 'ux500-dt-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/dt

From Linus Walleij:
Device tree patches for ux500, basically trees and auxdata:
- Fix for the thermal node to be contained in the PRCMU node
- Add the DTS and auxdata needed to boot the U8540 platform
- Various regulators added and renamed
- Rename base SoC node
- A bunch of DMA patches adding channels for DT boots
- A bunch of crypto+hash patches adding config for DT boots
- A bunch of patches fixing the ALSA SoC support to work
- Register the LP5521 LEDs
- Fix a number of typos and naming errors

* tag 'ux500-dt-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: (39 commits)
  ARM: ux500: drop any 0x prefix from I2C DT devices
  ARM: ux500: Allocate correct amount of memory for the u8540 in DT
  ARM: ux500: Provide auxdata to ux500 ASoC driver
  ARM: ux500: Add DT regulators for ab8500-codec
  ARM: ux500: Correct anamic2 typo in DT files
  ARM: ux500: Fix trivial typo in v-anamic1 comment
  ARM: ux500: Reduce PRCMU reg-names to shorter form for u8540 DT
  ARM: ux500: Add an auxdata entry for MUSB for clock-name look-up
  ARM: ux500: cut chip-select GPIOs from SSP device
  ARM: ux500: use symbolic names for interrupt flags
  ARM: ux500: use #include syntax to include *.dtsi.
  ARM: ux500: bump MMC/SD max frequency for DT boots
  ARM: ux500: Apply other compatible name to the u8540 DTS file
  pinctrl/nomadik: Standardise Pinctrl compat string for DBx5x based platforms
  ARM: ux500: Standardise Pinctrl compatible string for DBx5x based platforms
  ARM: ux500: Standardise DBx5x0 based Pinctrl compat string in the DTS
  crypto: ux500/hash - Enable DT probing of the driver
  crypto: ux500/cryp - Enable DT probing of the driver
  ARM: ux500: enable the crypto and hash on all dbx500
  ARM: ux500: Provide an AUXDATA entry for ux500-hash
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-14 16:54:27 -07:00