Add config and build options for the omap-des driver.
Signed-off-by: NJoel Fernandes <joelf@ti.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Add omap-des driver with platform data for OMAP4/AM43xx. Support added for DES
ECB and CBC modes. Also add support for 3DES operation where 3 64-bit keys are
used to perform a DES encrypt-decrypt-encrypt (des3_ede) operation on a buffer.

Tests have been conducted with the CRYPTO test manager, and functionality is
verified at different page length alignments.
Signed-off-by: NJoel Fernandes <joelf@ti.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

We should test the error case for each platform_get_irq() assignment and
propagate the error accordingly.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Use devm_ioremap_resource() in order to make the code simpler,
and remove redundant return value check of platform_get_resource()
because the value is checked by devm_ioremap_resource().
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Use devm_ioremap_resource() in order to make the code simpler,
and remove redundant return value check of platform_get_resource()
because the value is checked by devm_ioremap_resource().
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Use devm_ioremap_resource() in order to make the code simpler,
and remove redundant return value check of platform_get_resource()
because the value is checked by devm_ioremap_resource().
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

SEC ERA has to be retrieved by reading the "fsl,sec-era" property
from the device tree. This property is updated/filled in by
u-boot.
Signed-off-by: NAlex Porosanu <alexandru.porosanu@freescale.com>
Reviewed-by: NHoria Geanta <horia.geanta@freescale.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

stmp_reset_block() may fail, so check its return value and propagate it in the
case of error.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Using devm_kzalloc() can make the code cleaner.

While at it, remove the devm_kzalloc error message as there is standard OOM
message done by the core.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

In function talitos_probe(), it will jump to err_out when getting an
error in talitos_probe_irq(). Then the uninitialized list head
priv->alg_list will be used in function talitos_remove(). In this case
we would get a call trace like the following. So move up the
initialization of priv->alg_list.

  Unable to handle kernel paging request for data at address 0x00000000
  Faulting instruction address: 0xc0459ff4
  Oops: Kernel access of bad area, sig: 11 [#1]
  SMP NR_CPUS=8 P1020 RDB
  Modules linked in:
  CPU: 1 PID: 1 Comm: swapper/0 Tainted: G        W    3.13.0-08789-g54c0a4b4 #33
  task: cf050000 ti: cf04c000 task.ti: cf04c000
  NIP: c0459ff4 LR: c0459fd4 CTR: c02f2438
  REGS: cf04dcb0 TRAP: 0300   Tainted: G        W     (3.13.0-08789-g54c0a4b4)
  MSR: 00029000 <CE,EE,ME>  CR: 82000028  XER: 20000000
  DEAR: 00000000 ESR: 00000000
  GPR00: c045ac28 cf04dd60 cf050000 cf2579c0 00021000 00000000 c02f35b0 0000014e
  GPR08: c07e702c cf104300 c07e702c 0000014e 22000024 00000000 c0002a3c 00000000
  GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 c082e4e0 000000df
  GPR24: 00000000 00100100 00200200 cf257a2c cf0efe10 cf2579c0 cf0efe10 00000000
  NIP [c0459ff4] talitos_remove+0x3c/0x1c8
  LR [c0459fd4] talitos_remove+0x1c/0x1c8
  Call Trace:
  [cf04dd60] [c07485d8] __func__.13331+0x1241c8/0x1391c0 (unreliable)
  [cf04dd90] [c045ac28] talitos_probe+0x244/0x998
  [cf04dde0] [c0306a74] platform_drv_probe+0x28/0x68
  [cf04ddf0] [c0304d38] really_probe+0x78/0x250
  [cf04de10] [c030505c] __driver_attach+0xc8/0xcc
  [cf04de30] [c0302e98] bus_for_each_dev+0x6c/0xb8
  [cf04de60] [c03043cc] bus_add_driver+0x168/0x220
  [cf04de80] [c0305798] driver_register+0x88/0x130
  [cf04de90] [c0002458] do_one_initcall+0x14c/0x198
  [cf04df00] [c079f904] kernel_init_freeable+0x138/0x1d4
  [cf04df30] [c0002a50] kernel_init+0x14/0x124
  [cf04df40] [c000ec40] ret_from_kernel_thread+0x5c/0x64
Signed-off-by: NKevin Hao <haokexin@gmail.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Change from scheduling work to scheduling a tasklet to perform
the callback operations.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Move to a single queue to serialize requests within a tfm. When
testing using IPSec with a large number of network connections
the per cpu tfm queuing logic was not working properly.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Move the support to perform an HMAC calculation into
the CCP operations file.  This eliminates the need to
perform a synchronous SHA operation used to calculate
the HMAC.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Introduce module parameters that allow for disabling of a
crypto algorithm by not registering the algorithm with the
crypto API.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

There are some suspicious looking lines of code in the new ccp driver, including
one that assigns a variable to itself, and another that overwrites a previous assignment.

This may have been a cut-and-paste error where 'src' was forgotten to be changed to 'dst'.
I have no hardware to test this, so this is untested.
Signed-off-by: NDave Jones <davej@fedoraproject.org>
Acked-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The SEC Controller driver creates platform devices for it's child job ring nodes.
Currently the driver uses for_each_compatible routine which traverses
the whole device tree to create the job rings for the platform device.
The patch changes this to search for the compatible property of job ring
only in the child nodes i.e., the job rings are created as per the number
of children associated with the crypto node.
Signed-off-by: NNitesh Lal <NiteshNarayanLal@freescale.com>
Reviewed-by: NHoria Geanta <horia.geanta@freescale.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Move the AES operation type and mode from async crypto context to
crypto request context. This allows for recycling of the async crypto
context for different kinds of operations.

I found this problem when I used dm-crypt, which uses the same async
crypto context (actx) for both encryption and decryption requests.
Since the requests are enqueued into the processing queue, immediatelly
storing the type of operation into async crypto context (actx) caused
corruption of this information when encryption and decryption operations
followed imediatelly one after the other. When the first operation was
dequeued, the second operation was already enqueued and overwritten the
type of operation in actx, thus causing incorrect result of the first
operation.

Fix this problem by storing the type of operation into the crypto request
context.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Fixes the following sparse warning:

drivers/crypto/mxs-dcp.c:103:1: warning:
 symbol 'global_mutex' was not declared. Should it be static?
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The CCP cannot be hot-plugged so it will either be there
or it won't.  Do not allow the driver to stay loaded if the
CCP does not successfully initialize.

Provide stub routines in the ccp.h file that return -ENODEV
if the CCP has not been configured in the build.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Cleanup the ahash digest invocations to check the init
return code and make use of the finup routine.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

When performing a hash operation if the amount of data buffered and a
request at or near the maximum data length is received then the length
calcuation could wrap causing an error in executing the hash operation.
Fix this by using a u64 type for the input and output data lengths in
all CCP operations.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

For a hash operation, the caller doesn't have to supply a result
area on every call so don't use it / update it if it hasn't
been supplied.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Cleanup up the usage of scatterlists to make the code cleaner
and avoid extra memory allocations when not needed.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Fix some memory allocations to use the appropriate gfp_t type based
on the CRYPTO_TFM_REQ_MAY_SLEEP flag.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The order in the Makefile was a mess, sort it.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Add support for the MXS DCP block. The driver currently supports
SHA-1/SHA-256 hashing and AES-128 CBC/ECB modes. The non-standard
CRC32 is not yet supported.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Remove the old DCP driver as it had multiple severe issues. The driver
will be replaced by a more robust implementation. Here is a short list
of problems with this driver:

1) It only supports AES_CBC
2) The driver was apparently never ran behind anyone working with MXS. ie.:
   -> Restarting the DCP block is not done via mxs_reset_block()
   -> The DT name is not "fsl,dcp" or "fsl,mxs-dcp" as other MXS drivers
3) Introduces new ad-hoc IOCTLs
4) The IRQ handler can't use usual completion() in the driver because that'd
   trigger "scheduling while atomic" oops, yes?
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/ixp4xx_crypto.c: In function 'ixp_module_init':
drivers/crypto/ixp4xx_crypto.c:1419:2: error: 'dev' undeclared (first use in this function)

Now builds. Not tested on real hw.
Signed-off-by: NKrzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Driver core sets it to NULL upon probe failure or release.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Driver core sets it to NULL upon probe failure or release.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Driver core sets it to NULL upon probe failure or release.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Use the common helper function crypto_authenc_extractkeys() for key
parsing.
Also fix the key buffer overflow condition: use split key pad length
instead of authentication key length.
Signed-off-by: NHoria Geanta <horia.geanta@freescale.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Command "tcrypt sec=1 mode=403" give the follwoing error for Polling
mode:
root@am335x-evm:/# insmod tcrypt.ko sec=1 mode=403
[...]

[  346.982754] test 15 ( 4096 byte blocks, 1024 bytes per update,   4 updates):   4352 opers/sec,  17825792 bytes/sec
[  347.992661] test 16 ( 4096 byte blocks, 4096 bytes per update,   1 updates):   7095 opers/sec,  29061120 bytes/sec
[  349.002667] test 17 ( 8192 byte blocks,   16 bytes per update, 512 updates):
[  349.010882] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[  349.020037] pgd = ddeac000
[  349.022884] [00000000] *pgd=9dcb4831, *pte=00000000, *ppte=00000000
[  349.029816] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
[  349.035482] Modules linked in: tcrypt(+)
[  349.039617] CPU: 0 PID: 1473 Comm: insmod Not tainted 3.12.4-01566-g6279006-dirty #38
[  349.047832] task: dda91540 ti: ddcd2000 task.ti: ddcd2000
[  349.053517] PC is at omap_sham_xmit_dma+0x6c/0x238
[  349.058544] LR is at omap_sham_xmit_dma+0x38/0x238
[  349.063570] pc : [<c04eb7cc>]    lr : [<c04eb798>]    psr: 20000013
[  349.063570] sp : ddcd3c78  ip : 00000000  fp : 9d8980b8
[  349.075610] r10: 00000000  r9 : 00000000  r8 : 00000000
[  349.081090] r7 : 00001000  r6 : dd898000  r5 : 00000040  r4 : ddb10550
[  349.087935] r3 : 00000004  r2 : 00000010  r1 : 53100080  r0 : 00000000
[  349.094783] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[  349.102268] Control: 10c5387d  Table: 9deac019  DAC: 00000015
[  349.108294] Process insmod (pid: 1473, stack limit = 0xddcd2248)

[...]

This is because polling_mode is not enabled for ctx without FLAGS_FINUP.

For polling mode the bufcnt is made 0 unconditionally. But it should be made 0
only if it is a final update or a total is not zero(This condition is similar
to what is done in DMA case). Because of this wrong hashes are produced.

Fixing the same.
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Remove the pr_err calls that are issued during parameter
checking in some AES operations. This will eliminate the
possibility of filling up syslog through these paths.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Update the Kconfig to include PCI on the 'depends on'
and add 'select HW_RANDOM' to insure the necessary PCI
and HW_RANDOM functions are available/included in the
build.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

The sha initialization data generated the following sparse warnings:

   sparse: incorrect type in initializer (different base types)
      expected unsigned int
      got restricted __be32 [usertype] <noident>

Change the initialization data type from u32 to __be32.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Depending on peripheral capabilities, print SHA information at the end
of the probe function.
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: NHerbert Xu <herbert@gondor.apana.org.au>

Add support for Device Tree and use of the DMA DT API to
get the channels if needed.
Documentation is added for these DT nodes.

Initial code by: Nicolas Royer and Eukrea.
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: NHerbert Xu <herbert@gondor.apana.org.au>

Add support for Device Tree and use of the DMA DT API to
get the channels if needed.
Documentation is added for these DT nodes.

Initial code by: Nicolas Royer and Eukrea.
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: NHerbert Xu <herbert@gondor.apana.org.au>

Add support for Device Tree and use of the DMA DT API to
get the needed channels.
Documentation is added for these DT nodes.

Initial code by: Nicolas Royer and Eukrea.
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: NHerbert Xu <herbert@gondor.apana.org.au>