1
Commit Graph

448 Commits

Author SHA1 Message Date
Linus Torvalds
274a2f5ddb Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This fixes the authenc self-test crash as well as a missing export of
  a symbol used by a module."

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: authenc - Fix crash with zero-length assoc data
  crypto/caam: Export gen_split_key symbol for other modules
2012-09-12 07:14:17 +08:00
Ben Collins
3b75a2c126 crypto/caam: Export gen_split_key symbol for other modules
In 3.6-rc3, without this patch, the following error occurs with a modular build:

ERROR: "gen_split_key" [drivers/crypto/caam/caamhash.ko] undefined!
ERROR: "gen_split_key" [drivers/crypto/caam/caamalg.ko] undefined!

Signed-off-by: Ben Collins <ben.c@servergy.com>
Cc: Yuan Kang <Yuan.Kang@freescale.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-09-07 04:07:35 +08:00
Linus Torvalds
2d809dcd88 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This push fixes a build error on 32-bit archs in the hifn driver as
  well as a potential deadlock in the caam driver."

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: caam - fix possible deadlock condition
  crypto: hifn_795x - fix 64bit division and undefined __divdi3 on 32bit archs
2012-08-23 21:58:04 -07:00
Kim Phillips
ce026cb9cb crypto: caam - fix possible deadlock condition
commit "crypto: caam - use non-irq versions of spinlocks for job rings"
made two bad assumptions:

(a) The caam_jr_enqueue lock isn't used in softirq context.
Not true: jr_enqueue can be interrupted by an incoming net
interrupt and the received packet may be sent for encryption,
via caam_jr_enqueue in softirq context, thereby inducing a
deadlock.

This is evidenced when running netperf over an IPSec tunnel
between two P4080's, with spinlock debugging turned on:

[  892.092569] BUG: spinlock lockup on CPU#7, netperf/10634, e8bf5f70
[  892.098747] Call Trace:
[  892.101197] [eff9fc10] [c00084c0] show_stack+0x48/0x15c (unreliable)
[  892.107563] [eff9fc50] [c0239c2c] do_raw_spin_lock+0x16c/0x174
[  892.113399] [eff9fc80] [c0596494] _raw_spin_lock+0x3c/0x50
[  892.118889] [eff9fc90] [c0445e74] caam_jr_enqueue+0xf8/0x250
[  892.124550] [eff9fcd0] [c044a644] aead_decrypt+0x6c/0xc8
[  892.129625] BUG: spinlock lockup on CPU#5, swapper/5/0, e8bf5f70
[  892.129629] Call Trace:
[  892.129637] [effa7c10] [c00084c0] show_stack+0x48/0x15c (unreliable)
[  892.129645] [effa7c50] [c0239c2c] do_raw_spin_lock+0x16c/0x174
[  892.129652] [effa7c80] [c0596494] _raw_spin_lock+0x3c/0x50
[  892.129660] [effa7c90] [c0445e74] caam_jr_enqueue+0xf8/0x250
[  892.129666] [effa7cd0] [c044a644] aead_decrypt+0x6c/0xc8
[  892.129674] [effa7d00] [c0509724] esp_input+0x178/0x334
[  892.129681] [effa7d50] [c0519778] xfrm_input+0x77c/0x818
[  892.129688] [effa7da0] [c050e344] xfrm4_rcv_encap+0x20/0x30
[  892.129697] [effa7db0] [c04b90c8] ip_local_deliver+0x190/0x408
[  892.129703] [effa7de0] [c04b966c] ip_rcv+0x32c/0x898
[  892.129709] [effa7e10] [c048b998] __netif_receive_skb+0x27c/0x4e8
[  892.129715] [effa7e80] [c048d744] netif_receive_skb+0x4c/0x13c
[  892.129726] [effa7eb0] [c03c28ac] _dpa_rx+0x1a8/0x354
[  892.129732] [effa7ef0] [c03c2ac4] ingress_rx_default_dqrr+0x6c/0x108
[  892.129742] [effa7f10] [c0467ae0] qman_poll_dqrr+0x170/0x1d4
[  892.129748] [effa7f40] [c03c153c] dpaa_eth_poll+0x20/0x94
[  892.129754] [effa7f60] [c048dbd0] net_rx_action+0x13c/0x1f4
[  892.129763] [effa7fa0] [c003d1b8] __do_softirq+0x108/0x1b0
[  892.129769] [effa7ff0] [c000df58] call_do_softirq+0x14/0x24
[  892.129775] [ebacfe70] [c0004868] do_softirq+0xd8/0x104
[  892.129780] [ebacfe90] [c003d5a4] irq_exit+0xb8/0xd8
[  892.129786] [ebacfea0] [c0004498] do_IRQ+0xa4/0x1b0
[  892.129792] [ebacfed0] [c000fad8] ret_from_except+0x0/0x18
[  892.129798] [ebacff90] [c0009010] cpu_idle+0x94/0xf0
[  892.129804] [ebacffb0] [c059ff88] start_secondary+0x42c/0x430
[  892.129809] [ebacfff0] [c0001e28] __secondary_start+0x30/0x84
[  892.281474]
[  892.282959] [eff9fd00] [c0509724] esp_input+0x178/0x334
[  892.288186] [eff9fd50] [c0519778] xfrm_input+0x77c/0x818
[  892.293499] [eff9fda0] [c050e344] xfrm4_rcv_encap+0x20/0x30
[  892.299074] [eff9fdb0] [c04b90c8] ip_local_deliver+0x190/0x408
[  892.304907] [eff9fde0] [c04b966c] ip_rcv+0x32c/0x898
[  892.309872] [eff9fe10] [c048b998] __netif_receive_skb+0x27c/0x4e8
[  892.315966] [eff9fe80] [c048d744] netif_receive_skb+0x4c/0x13c
[  892.321803] [eff9feb0] [c03c28ac] _dpa_rx+0x1a8/0x354
[  892.326855] [eff9fef0] [c03c2ac4] ingress_rx_default_dqrr+0x6c/0x108
[  892.333212] [eff9ff10] [c0467ae0] qman_poll_dqrr+0x170/0x1d4
[  892.338872] [eff9ff40] [c03c153c] dpaa_eth_poll+0x20/0x94
[  892.344271] [eff9ff60] [c048dbd0] net_rx_action+0x13c/0x1f4
[  892.349846] [eff9ffa0] [c003d1b8] __do_softirq+0x108/0x1b0
[  892.355338] [eff9fff0] [c000df58] call_do_softirq+0x14/0x24
[  892.360910] [e7169950] [c0004868] do_softirq+0xd8/0x104
[  892.366135] [e7169970] [c003d5a4] irq_exit+0xb8/0xd8
[  892.371101] [e7169980] [c0004498] do_IRQ+0xa4/0x1b0
[  892.375979] [e71699b0] [c000fad8] ret_from_except+0x0/0x18
[  892.381466] [e7169a70] [c0445e74] caam_jr_enqueue+0xf8/0x250
[  892.387127] [e7169ab0] [c044ad4c] aead_givencrypt+0x6ac/0xa70
[  892.392873] [e7169b20] [c050a0b8] esp_output+0x2b4/0x570
[  892.398186] [e7169b80] [c0519b9c] xfrm_output_resume+0x248/0x7c0
[  892.404194] [e7169bb0] [c050e89c] xfrm4_output_finish+0x18/0x28
[  892.410113] [e7169bc0] [c050e8f4] xfrm4_output+0x48/0x98
[  892.415427] [e7169bd0] [c04beac0] ip_local_out+0x48/0x98
[  892.420740] [e7169be0] [c04bec7c] ip_queue_xmit+0x16c/0x490
[  892.426314] [e7169c10] [c04d6128] tcp_transmit_skb+0x35c/0x9a4
[  892.432147] [e7169c70] [c04d6f98] tcp_write_xmit+0x200/0xa04
[  892.437808] [e7169cc0] [c04c8ccc] tcp_sendmsg+0x994/0xcec
[  892.443213] [e7169d40] [c04eebfc] inet_sendmsg+0xd0/0x164
[  892.448617] [e7169d70] [c04792f8] sock_sendmsg+0x8c/0xbc
[  892.453931] [e7169e40] [c047aecc] sys_sendto+0xc0/0xfc
[  892.459069] [e7169f10] [c047b934] sys_socketcall+0x110/0x25c
[  892.464729] [e7169f40] [c000f480] ret_from_syscall+0x0/0x3c

(b) since the caam_jr_dequeue lock is only used in bh context,
then semantically it should use _bh spin_lock types.  spin_lock_bh
semantics are to disable back-halves, and used when a lock is shared
between softirq (bh) context and process and/or h/w IRQ context.
Since the lock is only used within softirq context, and this tasklet
is atomic, there is no need to do the additional work to disable
back halves.

This patch adds back-half disabling protection to caam_jr_enqueue
spin_locks to fix (a), and drops it from caam_jr_dequeue to fix (b).

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-08-20 16:35:40 +08:00
Linus Torvalds
3e9a97082f This patch series contains a major revamp of how we collect entropy
from interrupts for /dev/random and /dev/urandom.  The goal is to
 addresses weaknesses discussed in the paper "Mining your Ps and Qs:
 Detection of Widespread Weak Keys in Network Devices", by Nadia
 Heninger, Zakir Durumeric, Eric Wustrow, J. Alex Halderman, which will
 be published in the Proceedings of the 21st Usenix Security Symposium,
 August 2012.  (See https://factorable.net for more information and an
 extended version of the paper.)
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

Pull random subsystem patches from Ted Ts'o:
 "This patch series contains a major revamp of how we collect entropy
  from interrupts for /dev/random and /dev/urandom.

  The goal is to addresses weaknesses discussed in the paper "Mining
  your Ps and Qs: Detection of Widespread Weak Keys in Network Devices",
  by Nadia Heninger, Zakir Durumeric, Eric Wustrow, J.  Alex Halderman,
  which will be published in the Proceedings of the 21st Usenix Security
  Symposium, August 2012.  (See https://factorable.net for more
  information and an extended version of the paper.)"

Fix up trivial conflicts due to nearby changes in
drivers/{mfd/ab3100-core.c, usb/gadget/omap_udc.c}

* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: (33 commits)
  random: mix in architectural randomness in extract_buf()
  dmi: Feed DMI table to /dev/random driver
  random: Add comment to random_initialize()
  random: final removal of IRQF_SAMPLE_RANDOM
  um: remove IRQF_SAMPLE_RANDOM which is now a no-op
  sparc/ldc: remove IRQF_SAMPLE_RANDOM which is now a no-op
  [ARM] pxa: remove IRQF_SAMPLE_RANDOM which is now a no-op
  board-palmz71: remove IRQF_SAMPLE_RANDOM which is now a no-op
  isp1301_omap: remove IRQF_SAMPLE_RANDOM which is now a no-op
  pxa25x_udc: remove IRQF_SAMPLE_RANDOM which is now a no-op
  omap_udc: remove IRQF_SAMPLE_RANDOM which is now a no-op
  goku_udc: remove IRQF_SAMPLE_RANDOM which was commented out
  uartlite: remove IRQF_SAMPLE_RANDOM which is now a no-op
  drivers: hv: remove IRQF_SAMPLE_RANDOM which is now a no-op
  xen-blkfront: remove IRQF_SAMPLE_RANDOM which is now a no-op
  n2_crypto: remove IRQF_SAMPLE_RANDOM which is now a no-op
  pda_power: remove IRQF_SAMPLE_RANDOM which is now a no-op
  i2c-pmcmsp: remove IRQF_SAMPLE_RANDOM which is now a no-op
  input/serio/hp_sdc.c: remove IRQF_SAMPLE_RANDOM which is now a no-op
  mfd: remove IRQF_SAMPLE_RANDOM which is now a no-op
  ...
2012-07-31 19:07:42 -07:00
Jussi Kivilinna
76f16f83ee crypto: hifn_795x - fix 64bit division and undefined __divdi3 on 32bit archs
Commit feb7b7ab928afa97a79a9c424e4e0691f49d63be changed NSEC_PER_SEC to 64-bit
constant, which causes "DIV_ROUND_UP(NSEC_PER_SEC, dev->pk_clk_freq)" to
generate __divdi3 call on 32-bit archs. Fix this by changing DIV_ROUND_UP to
DIV_ROUND_UP_ULL.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-30 15:50:54 +08:00
Linus Torvalds
25918f9811 ARM: SoC fixes
A mixed bag of fixes, some for merge window fallout (tegra, MXS), and
 a short series of fixes for marvell platforms that didn't make it in
 before 3.5.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A mixed bag of fixes, some for merge window fallout (tegra, MXS), and
  a short series of fixes for marvell platforms that didn't make it in
  before 3.5."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: mxs: fix compile error caused by prom_update_property change
  ARM: dt: tegra trimslice: enable USB2 port
  ARM: dt: tegra trimslice: add vbus-gpio property
  ARM: vt8500: Add maintainer for VT8500 architecture
  ARM: Kirkwood: Replace mrvl with marvell
  ARM: Orion: fix driver probe error handling with respect to clk
  ARM: Dove: Fixup ge00 initialisation
  ARM: Kirkwood: Fix PHY disable clk problems
  ARM: Kirkwood: Ensure runit clock always ticks.
  ARM: versatile: Don't use platform clock for Integrator & VE
  ARM: tegra: harmony: add regulator supply name and its input supply
2012-07-26 20:29:52 -07:00
Linus Torvalds
44a6b84421 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:

 - Fixed algorithm construction hang when self-test fails.
 - Added SHA variants to talitos AEAD list.
 - New driver for Exynos random number generator.
 - Performance enhancements for arc4.
 - Added hwrng support to caam.
 - Added ahash support to caam.
 - Fixed bad kfree in aesni-intel.
 - Allow aesni-intel in FIPS mode.
 - Added atmel driver with support for AES/3DES/SHA.
 - Bug fixes for mv_cesa.
 - CRC hardware driver for BF60x family processors.

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (66 commits)
  crypto: twofish-avx - remove useless instruction
  crypto: testmgr - add aead cbc aes hmac sha1,256,512 test vectors
  crypto: talitos - add sha224, sha384 and sha512 to existing AEAD algorithms
  crypto: talitos - export the talitos_submit function
  crypto: talitos - move talitos structures to header file
  crypto: atmel - add new tests to tcrypt
  crypto: atmel - add Atmel SHA1/SHA256 driver
  crypto: atmel - add Atmel DES/TDES driver
  crypto: atmel - add Atmel AES driver
  ARM: AT91SAM9G45: add crypto peripherals
  crypto: testmgr - allow aesni-intel and ghash_clmulni-intel in fips mode
  hwrng: exynos - Add support for Exynos random number generator
  crypto: aesni-intel - fix wrong kfree pointer
  crypto: caam - ERA retrieval and printing for SEC device
  crypto: caam - Using alloc_coherent for caam job rings
  crypto: algapi - Fix hang on crypto allocation
  crypto: arc4 - now arc needs blockcipher support
  crypto: caam - one tasklet per job ring
  crypto: caam - consolidate memory barriers from job ring en/dequeue
  crypto: caam - only query h/w in job ring dequeue path
  ...
2012-07-26 13:00:59 -07:00
Arnd Bergmann
c1f9c4227c Merge branch 'v3.5-rc7-fixes' of git://github.com/lunn/linux into fixes
From Andrew Lunn <andrew@lunn.ch>:

* 'v3.5-rc7-fixes' of git://github.com/lunn/linux:
  ARM: Kirkwood: Replace mrvl with marvell
  ARM: Orion: fix driver probe error handling with respect to clk
  ARM: Dove: Fixup ge00 initialisation
  ARM: Kirkwood: Fix PHY disable clk problems
  ARM: Kirkwood: Ensure runit clock always ticks.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-25 21:37:09 +02:00
Simon Baatz
baffab28b1 ARM: Orion: fix driver probe error handling with respect to clk
The clk patches added code to get and enable clocks in the
respective driver probe functions.  If the probe function failed
for some reason after enabling the clock, the clock was not
disabled again in many cases.

Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Andrew Lumm <andrew@lunn.ch>
2012-07-25 17:06:21 +02:00
Linus Torvalds
97e7292ab5 arm-soc: clk changes
Clock support is moving to the clk subsystem. These tegra, omap and imx
 changes are for code that is still platform specific and not (yet)
 part of that subsystem.
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Merge tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc clk changes from Arnd Bergmann:
 "Clock support is moving to the clk subsystem.  These tegra, omap and
  imx changes are for code that is still platform specific and not (yet)
  part of that subsystem."

Fix up conflicts in arch/arm/mach-{imx/clk-imx51-imx53.c,omap2/Makefile}

* tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
  ARM: imx: clk-imx31: Fix clock id for rnga driver
  ARM: imx: add missing item to the list of clock event modes
  ARM: i.MX5x CSPI: Fixed clock name for CSPI
  ARM: i.MX5x clocks: Fix GPT clocks
  ARM: i.MX5x clocks: Fix parent for PWM clocks
  ARM: i.MX5x clocks: Add EPIT support
  ARM: mx27: Reenable silicon version print
  ARM: clk-imx27: Fix rtc clock id
  ARM: tegra: Provide clock for only one PWM controller
  ARM: tegra: Fix PWM clock programming
  ARM: OMAP3+: clock33xx: Add AM33XX clock tree data
  ARM: OMAP3+: clock: Move common clksel_rate & clock data to common file
  ARM: tegra: dma: rename driver name for clock to "tegra-apbdma"
  ARM: tegra: Remove second instance of uart clk
  crypto: add clk_prepare/clk_unprepare
  ASoC: tegra: add clk_prepare/clk_unprepare
  staging: nvec: add clk_prepare/clk_unprepare
  spi/tegra: add clk_prepare/clk_unprepare
  Input: tegra-kbc - add clk_prepare/clk_unprepare
  USB: ehci-tegra: add clk_prepare/clk_unprepare
  ...
2012-07-23 17:51:03 -07:00
Theodore Ts'o
9751bfd1c9 n2_crypto: remove IRQF_SAMPLE_RANDOM which is now a no-op
With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
no-op; interrupt randomness is now collected unconditionally in a very
low-overhead fashion; see commit 775f4b297b.  The IRQF_SAMPLE_RANDOM
flag was scheduled to be removed in 2009 on the
feature-removal-schedule, so this patch is preparation for the final
removal of this flag.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-19 10:39:12 -04:00
Horia Geanta
357fb60502 crypto: talitos - add sha224, sha384 and sha512 to existing AEAD algorithms
With this, now all combinations of
CBC: AES, 3DES-EDE
with
HMAC: SHA-1, SHA-224, SHA-256, SHA-384, SHA-512
are supported.

Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-11 11:08:29 +08:00
Horia Geanta
865d506155 crypto: talitos - export the talitos_submit function
This patch exports the talitos_submit function so that on
need basis same can be used by other entities.

Signed-off-by: Sandeep Malik <Sandeep.Malik@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-11 11:08:29 +08:00
Horia Geanta
d1a0eb98e7 crypto: talitos - move talitos structures to header file
This patch moves the talitos structure definitions from c file to its
header file so that the same can be shared on need basis.

Signed-off-by: Sandeep Malik <Sandeep.Malik@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-11 11:08:29 +08:00
Nicolas Royer
ebc82efa1c crypto: atmel - add Atmel SHA1/SHA256 driver
Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-11 11:08:28 +08:00
Nicolas Royer
13802005d8 crypto: atmel - add Atmel DES/TDES driver
Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-11 11:08:14 +08:00
Nicolas Royer
bd3c7b5c2a crypto: atmel - add Atmel AES driver
Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-11 11:07:40 +08:00
Alex Porosanu
82c2f9607b crypto: caam - ERA retrieval and printing for SEC device
This patch adds support for retrieving and printing of
SEC ERA information. It is useful for knowing beforehand
what features exist from the SEC point of view on a
certain SoC. Only era-s 1 to 4 are currently supported;
other eras will appear as unknown.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>

- rebased onto current cryptodev master
- made caam_eras static

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-11 11:06:11 +08:00
Bharat Bhushan
1af8ea862c crypto: caam - Using alloc_coherent for caam job rings
The caam job rings (input/output job ring) are allocated using
dma_map_single(). These job rings can be visualized as the ring
buffers in which the jobs are en-queued/de-queued. The s/w enqueues
the jobs in input job ring which h/w dequeues and after processing
it copies the jobs in output job ring. Software then de-queues the
job from output ring. Using dma_map/unmap_single() is not preferred
way to allocate memory for this type of requirements because this
adds un-necessary complexity.

Example, if bounce buffer (SWIOTLB) will get used then to make any
change visible in this memory to other processing unit requires
dmap_unmap_single() or dma_sync_single_for_cpu/device(). The
dma_unmap_single() can not be used as this will free the bounce
buffer, this will require changing the job rings on running system
and I seriously doubt that it will be not possible or very complex
to implement. Also using dma_sync_single_for_cpu/device() will also
add unnecessary complexity.

The simple and preferred way is using dma_alloc_coherent() for these
type of memory requirements.

This resolves the Linux boot crash issue when "swiotlb=force" is set
in bootargs on systems which have memory more than 4G.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-11 11:06:10 +08:00
Rafael J. Wysocki
4f31f5b19e PM / crypto / ux500: Use struct dev_pm_ops for power management
Make the ux500 crypto driver define its PM callbacks through
struct dev_pm_ops objects rather than by using legacy PM hooks
in struct platform_driver.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-10 21:37:33 +02:00
Kim Phillips
a0ca6ca022 crypto: caam - one tasklet per job ring
there is no noticeable benefit for multiple cores to process one
job ring's output ring: in fact, we can benefit from cache effects
of having the back-half stay on the core that receives a particular
ring's interrupts, and further relax general contention and the
locking involved with reading outring_used, since tasklets run
atomically.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:07 +08:00
Kim Phillips
14a8e29cc2 crypto: caam - consolidate memory barriers from job ring en/dequeue
Memory barriers are implied by the i/o register write implementation
(at least on Power).  So we can remove the redundant wmb() in
caam_jr_enqueue, and, in dequeue(), hoist the h/w done notification
write up to before we need to increment the head of the ring, and
save an smp_mb.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:07 +08:00
Kim Phillips
a8ea07c21d crypto: caam - only query h/w in job ring dequeue path
Code was needlessly checking the s/w job ring when there
would be nothing to process if the h/w's output completion
ring were empty anyway.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:07 +08:00
Kim Phillips
4bba1e9f41 crypto: caam - use non-irq versions of spinlocks for job rings
The enqueue lock isn't used in any interrupt context, and
the dequeue lock isn't used in the h/w interrupt context,
only in bh context.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:06 +08:00
Kim Phillips
1a076689cd crypto: caam - disable IRQ coalescing by default
It has been observed that in zero-loss benchmarks, when a
slow traffic rate is being tested, the IRQ timer coalescing
parameter was set too high, and the ethernet controller
would start dropping packets because the job ring back half
wouldn't be executed in time before the ethernet controller
would fill its buffers, thereby significantly reducing the
zero-loss performance figures.

Empirical testing has shown that the best zero-loss performance
is achieved when IRQ coalescing is set to minimum values and/or
turned off, since apparently the job ring driver already implements
an adequately-performing general-purpose IRQ mitigation strategy
in software.

Whilst we could go with minimal count (2-8) and timing settings
(192-256), we prefer just turning h/w coalescing altogether off
to minimize setkey latency (due to split key generation), and
for consistent cross-SoC performance (the SEC vs. core clock
ratio changes).

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:06 +08:00
Kim Phillips
281922a1d4 crypto: caam - add support for SEC v5.x RNG4
The SEC v4.x' RNGB h/w block self-initialized.  RNG4, available
on SEC versions 5 and beyond, is based on a different standard
that requires manual initialization.

Also update any new errors From the SEC v5.2 reference manual:
The SEC v5.2's RNG4 unit reuses some error IDs, thus the addition
of rng_err_id_list over the CHA-independent err_id_list.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:06 +08:00
Kim Phillips
e13af18a3e crypto: caam - assign 40-bit masks on SEC v5.0 and above
SEC v4.x were only 36-bit, SEC v5+ are 40-bit capable.
Also set a DMA mask for any job ring devices created.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:06 +08:00
Yuan Kang
e24f7c9e87 crypto: caam - hwrng support
caam_read copies random bytes from two buffers into output.

caam rng can fill empty buffer 0xffff bytes at a time,
but the buffer sizes are rounded down to multiple of cacheline size.

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:06 +08:00
Yuan Kang
643b39b031 crypto: caam - chaining support
support chained scatterlists for aead, ablkcipher and ahash.

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>

- fix dma unmap leak
- un-unlikely src == dst, due to experience with AF_ALG

Signed-off-by: Kudupudi Ugendreshwar <B38865@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:05 +08:00
Yuan Kang
b0e09bae37 crypto: caam - unkeyed ahash support
caam supports and registers unkeyed sha algorithms and md5.

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:05 +08:00
Yuan Kang
045e36780f crypto: caam - ahash hmac support
caam supports ahash hmac with sha algorithms and md5.

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:05 +08:00
Yuan Kang
a299c83704 crypto: caam - link_tbl rename
- rename scatterlist and link_tbl functions
- link_tbl changed to sec4_sg
- sg_to_link_tbl_one changed to dma_to_sec4_sg_one,
  since no scatterlist is use

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:05 +08:00
Yuan Kang
4c1ec1f930 crypto: caam - refactor key_gen, sg
create separate files for split key generation and scatterlist functions.

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:05 +08:00
Yuan Kang
8009a383f2 crypto: caam - remove jr register/deregister
remove caam_jr_register and caam_jr_deregister
to allow sharing of job rings.

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:04 +08:00
Yuan Kang
6ec4733493 crypto: caam - support external seq in/out lengths
functions for external storage of seq in/out lengths,
i.e., for 32-bit lengths.

These type-dependent functions automatically determine whether to
store the length internally (embedded in the command header word) or
externally (after the address pointer), based on size of the type
given.

Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:04 +08:00
Hemant Agrawal
a23d80e0b7 crypto: caam - add PDB (Protocol Descriptor Block) definitions
Add a PDB header file to support building protocol descriptors.

Signed-off-by: Steve Cornelius <sec@pobox.com>
Signed-off-by: Hemant Agrawal <hemant@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:04 +08:00
Kim Phillips
991c569c5d crypto: caam - fix descriptor length adjustments for protocol descriptors
init_desc, by always ORing with 1 for the descriptor header inclusion
into the descriptor length, and init_sh_desc_pdb, by always specifying
the descriptor length modification for the PDB via options, would not
allow for odd length PDBs to be embedded in the constructed descriptor
length.  Fix this by simply changing the OR to an addition.

also round-up pdb_bytes to the next SEC command unit size, to
allow for, e.g., optional packet header bytes that aren't a
multiple of CAAM_CMD_SZ.

Reported-by: Radu-Andrei BULIE <radu.bulie@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Yashpal Dutta <yashpal.dutta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:03 +08:00
Yashpal Dutta
c4b664063e crypto: caam - fix start index for Protocol shared descriptors
In case of protocol acceleration descriptors, Shared descriptor header must
carry size of header length + PDB length in words which will be skipped by
DECO while processing descriptor to provide first command word offset

Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:03 +08:00
Kim Phillips
a68d259587 crypto: caam - fix input job ring element dma mapping size
SEC4 h/w gets configured in 32- vs. 36-bit physical
addressing modes depending on the size of dma_addr_t,
which is not always equal to sizeof(u32 *).

Also fixed alignment of a dma_unmap call whilst in there.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:03 +08:00
Kim Phillips
70d793cc30 crypto: caam - remove line continuations from ablkcipher_append_src_dst
presumably leftovers from possible macro development.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:03 +08:00
Seth Jennings
7c76bdd7c3 crypto: nx - fix typo in nx driver config option
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:00 +08:00
Seth Jennings
95ead5d7ff crypto: nx - move nx build to driver/crypto Makefile
When the nx driver was pulled, the Makefile that actually
builds it is arch/powerpc/Makefile. This is unnatural.

This patch moves the line that builds the nx driver from
arch/powerpc/Makefile to drivers/crypto/Makefile where it
belongs.

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:00 +08:00
Prashant Gaikwad
0df1ed4b12 crypto: add clk_prepare/clk_unprepare
Use clk_prepare/clk_unprepare as required by the generic clk framework.

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-12 10:32:57 -06:00
Phil Sutter
4d03c5047a crypto: mv_cesa - fix for hash finalisation with data
Since mv_hash_final_fallback() uses ctx->state, read out the digest
state register before calling it.

Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-12 16:46:05 +08:00
Phil Sutter
5741d2eeae crypto: mv_cesa - initialise the interrupt status field to zero
Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-12 16:41:21 +08:00
Phil Sutter
170dd56dfc crypto: mv_cesa - add an expiry timer in case anything goes wrong
The timer triggers when 500ms have gone by after triggering the engine
and no completion interrupt was received. The callback then tries to
sanitise things as well as possible.

Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-12 16:37:20 +08:00
Sonic Zhang
b8840098b7 crypto: bfin_crc - CRC hardware driver for BF60x family processors.
The CRC peripheral is a hardware block used to compute the CRC of the block
of data. This is based on a CRC32 engine which computes the CRC value of 32b
data words presented to it. For data words of < 32b in size, this driver
pack 0 automatically into 32b data units. This driver implements the async
hash crypto framework API.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-12 16:37:19 +08:00
Linus Torvalds
2795343705 arm-soc: clock driver changes
The new clock subsystem was merged in linux-3.4 without any users, this
 now moves the first three platforms over to it: imx, mxs and spear.
 
 The series also contains the changes for the clock subsystem itself,
 since Mike preferred to have it together with the platforms that require
 these changes, in order to avoid interdependencies and conflicts.
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Merge tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc clock driver changes from Olof Johansson:
 "The new clock subsystem was merged in linux-3.4 without any users,
  this now moves the first three platforms over to it: imx, mxs and
  spear.

  The series also contains the changes for the clock subsystem itself,
  since Mike preferred to have it together with the platforms that
  require these changes, in order to avoid interdependencies and
  conflicts."

Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code
removed in one branch, added OF support in another) and
drivers/dma/imx-sdma.c (independent changes next to each other).

* tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
  clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
  clk: Provide dummy clk_unregister()
  SPEAr: Update defconfigs
  SPEAr: Add SMI NOR partition info in dts files
  SPEAr: Switch to common clock framework
  SPEAr: Call clk_prepare() before calling clk_enable
  SPEAr: clk: Add General Purpose Timer Synthesizer clock
  SPEAr: clk: Add Fractional Synthesizer clock
  SPEAr: clk: Add Auxiliary Synthesizer clock
  SPEAr: clk: Add VCO-PLL Synthesizer clock
  SPEAr: Add DT bindings for SPEAr's timer
  ARM i.MX: remove now unused clock files
  ARM: i.MX6: implement clocks using common clock framework
  ARM i.MX35: implement clocks using common clock framework
  ARM i.MX5: implement clocks using common clock framework
  ARM: Kirkwood: Replace clock gating
  ARM: Orion: Audio: Add clk/clkdev support
  ARM: Orion: PCIE: Add support for clk
  ARM: Orion: XOR: Add support for clk
  ARM: Orion: CESA: Add support for clk
  ...
2012-05-26 12:42:29 -07:00
Linus Torvalds
0bd3fbd4ab Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 - New cipher/hash driver for ARM ux500.
 - Code clean-up for aesni-intel.
 - Misc fixes.

Fixed up conflicts in arch/arm/mach-ux500/devices-common.h, where quite
frankly some of it made no sense at all (the pull brought in a
declaration for the dbx500_add_platform_device_noirq() function, which
neither exists nor is used anywhere).

Also some trivial add-add context conflicts in the Kconfig file in
drivers/{char/hw_random,crypto}/

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: aesni-intel - move more common code to ablk_init_common
  crypto: aesni-intel - use crypto_[un]register_algs
  crypto: ux500 - Cleanup hardware identification
  crypto: ux500 - Update DMA handling for 3.4
  mach-ux500: crypto - core support for CRYP/HASH module.
  crypto: ux500 - Add driver for HASH hardware
  crypto: ux500 - Add driver for CRYP hardware
  hwrng: Kconfig - modify default state for atmel-rng driver
  hwrng: omap - use devm_request_and_ioremap
  crypto: crypto4xx - move up err_request_irq label
  crypto, xor: Sanitize checksumming function selection output
  crypto: caam - add backward compatible string sec4.0
2012-05-23 15:59:10 -07:00