- Mar 10, 2014
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Kees Cook authored
When bringing a new RNG source online, it seems like it would make sense to use some of its bytes to make the system entropy pool more random, as done with all sorts of other devices that contain per-device or per-boot differences. Signed-off-by:
Kees Cook <keescook@chromium.org> Reviewed-by:
Jason Cooper <jason@lakedaemon.net> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au>
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Marek Vasut authored
Optimize the hashing operation in the MXS-DCP by doing two adjustments: 1) Given that the output buffer for the hash is now always correctly aligned, we can just use the buffer for the DCP DMA to store the resulting hash. We thus get rid of one copying of data. Moreover, we remove an entry from dcp_coherent_block{} and thus lower the memory footprint of the driver. 2) We map the output buffer for the hash for DMA only in case we will output the hash, not always, as it was now. Signed-off-by:Marek Vasut <marex@denx.de> Cc: David S. Miller <davem@davemloft.net> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
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Marek Vasut authored
The DCP needs the bounce buffers, DMA descriptors and result buffers aligned to 64 bytes (yet another hardware limitation). Make sure they are aligned by properly aligning the structure which contains them during allocation. Signed-off-by:
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Jingoo Han authored
Make omap_des_copy_needed(), omap_des_copy_sgs(), because these functions are used only in this file. Signed-off-by:
Jingoo Han <jg1.han@samsung.com> Acked-by:
Joel Fernandes <joelf@ti.com> Signed-off-by:
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Jingoo Han authored
Use SIMPLE_DEV_PM_OPS macro in order to make the code simpler. Signed-off-by:
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Jingoo Han authored
Use SIMPLE_DEV_PM_OPS macro in order to make the code simpler. Signed-off-by:
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Jingoo Han authored
Use SIMPLE_DEV_PM_OPS macro in order to make the code simpler. Signed-off-by:
Nishanth Menon <nm@ti.com> Signed-off-by:
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Jingoo Han authored
Use devm_*() functions to make cleanup paths simpler. Signed-off-by:
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Jingoo Han authored
Use devm_*() functions to make cleanup paths simpler. Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Jingoo Han authored
Use devm_clk_get() to make cleanup paths simpler. Signed-off-by:
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Jingoo Han authored
Use devm_clk_get() to make cleanup paths simpler. Signed-off-by:
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Jingoo Han authored
Use devm_clk_get() to make cleanup paths simpler. Signed-off-by:
Peter Korsgaard <peter@korsgaard.com> Acked-by:
Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by:
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Sonic Zhang authored
1) SSYNC instruction is blackfin specific and takes no effect in this driver. 2) DMA descriptor and SG middle buffer are in DMA coherent memory. No need to flush. 3) Turn kzalloc, ioremap and request_irq into managed device APIs respectively. Signed-off-by:
Sonic Zhang <sonic.zhang@analog.com> Signed-off-by:
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Alexander Shiyan authored
Signed-off-by:
Alexander Shiyan <shc_work@mail.ru> Signed-off-by:
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- Feb 26, 2014
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Tom Lendacky authored
When the crypto layer is able to queue up a command for processing by the CCP on the initial call to ccp_crypto_enqueue_request and the CCP returns -EBUSY, then if the backlog flag is not set the command needs to be freed and not added to the active command list. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
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Tom Lendacky authored
Invoke the callback routine associated with the crypto context if an error is encountered sending the command to the CCP during backlog processing. This is needed to free any resources used by the command. Signed-off-by:
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Tom Lendacky authored
If a CCP command has been queued for processing at the crypto layer then, when dequeueing it for processing, the "can backlog" flag must be set so that the request isn't lost if the CCP backlog queue limit is reached. Signed-off-by:
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Dan Carpenter authored
My guess is that this little endian configuration is never found in real life, but if it were then the writel() arguments are in the wrong order so the driver would crash immediately. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Kim Phillips <kim.phillips@freescale.com> Signed-off-by:
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Stephen Warren authored
This driver has never been hooked up in any board file, and cannot be instantiated via device tree. I've been told that, at least on Tegra20, the HW is slower at crypto than the main CPU. I have no test-case for it. Hence, remove it. Cc: Varun Wadekar <vwadekar@nvidia.com> Signed-off-by:
Stephen Warren <swarren@nvidia.com> Signed-off-by:
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Joel Fernandes authored
Add config and build options for the omap-des driver. Signed-off-by:
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Joel Fernandes authored
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:
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Fabio Estevam authored
We should test the error case for each platform_get_irq() assignment and propagate the error accordingly. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Acked-by:
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Dan Carpenter authored
We checked "nbytes < bsize" before so it can't happen here. Signed-off-by:
Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by:
Johannes Götzfried <johannes.goetzfried@cs.fau.de> Signed-off-by:
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Jingoo Han authored
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:
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Jingoo Han authored
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:
Peter Korsgaard <jacmet@sunsite.dk> Acked-by:
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Jingoo Han authored
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:
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Jingoo Han authored
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:
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Jingoo Han authored
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:
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- Feb 25, 2014
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Tim Chen authored
We added the soft module dependency of crc32c module alias to generic crc32c module so other hardware accelerated crc32c modules could get loaded and used before the generic version. We also renamed the crypto/crc32c.c containing the generic crc32c crypto computation to crypto/crc32c_generic.c according to convention. Signed-off-by:
Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by:
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- Feb 08, 2014
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Alex Porosanu authored
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:
Alex Porosanu <alexandru.porosanu@freescale.com> Reviewed-by:
Horia Geanta <horia.geanta@freescale.com> Signed-off-by:
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Dan Carpenter authored
My static checker complains that: drivers/char/hw_random/core.c:341 hwrng_register() warn: we tested 'old_rng' before and it was 'false' The problem is that sometimes we test "if (!old_rng)" and sometimes we test "if (must_register_misc)". The static checker knows they are equivalent but a human being reading the code could easily be confused. I have simplified the code by removing the "must_register_misc" variable and I have removed the redundant check on "if (!old_rng)". Signed-off-by:
Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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Fabio Estevam authored
stmp_reset_block() may fail, so check its return value and propagate it in the case of error. Signed-off-by:
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Fabio Estevam authored
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:
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Kevin Hao authored
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-g54c0a4b46150 #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-g54c0a4b46150) 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:
Kevin Hao <haokexin@gmail.com> Signed-off-by:
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Tom Lendacky authored
Change from scheduling work to scheduling a tasklet to perform the callback operations. Signed-off-by:
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Tom Lendacky authored
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:
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Tom Lendacky authored
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:
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Tom Lendacky authored
Introduce module parameters that allow for disabling of a crypto algorithm by not registering the algorithm with the crypto API. Signed-off-by:
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Dave Jones authored
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:
Dave Jones <davej@fedoraproject.org> Acked-by:
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Nitesh Lal authored
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:
Nitesh Lal <NiteshNarayanLal@freescale.com> Reviewed-by:
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