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* crypto: sun4i-ss - fix missing unlock on error in sun4i_hash()Wei Yongjun2016-08-241-1/+2
| | | | | | | | | | Add the missing unlock before return from function sun4i_hash() in the error handling case. Fixes: 477d9b2e591b ("crypto: sun4i-ss - unify update/final function") Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Acked-by: Corentin LABBE <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* hwrng: pic32 - Delete unnecessary assignment for the field "owner"Markus Elfring2016-08-161-1/+0
| | | | | | | | | The field "owner" is set by the core. Thus delete an unneeded initialisation. Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Fix non static symbol warningWei Yongjun2016-08-161-1/+1
| | | | | | | | | | Fixes the following sparse warning: drivers/crypto/ccp/ccp-dev.c:62:14: warning: symbol 'ccp_increment_unit_ordinal' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: sun4i-ss - fix indentation of two crypto algCorentin LABBE2016-08-161-34/+34
| | | | | | | Two crypto alg are badly indented, this patch fix this style issue. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: sun4i-ss - Always use sun4i_tfm_ctx for storing pointer to dev ssCorentin LABBE2016-08-162-3/+11
| | | | | | | | | The dev *ss is stored both in sun4i_tfm_ctx and sun4i_req_ctx. Since this pointer will never be changed during tfm life, it is better to remove it from sun4i_req_ctx. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: sun4i-ss - fix spellingCorentin LABBE2016-08-161-2/+2
| | | | | | | Two words are badly spelled, this patch respell them. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: sun4i-ss - clean unused ssCorentin LABBE2016-08-161-2/+0
| | | | | | | The ss variable is never used, remove it. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: sun4i-ss - unify update/final functionCorentin LABBE2016-08-162-63/+85
| | | | | | | | | | | | The update and final functions have lots of common action. This patch mix them in one function. This will give some improvements: - This will permit asynchronous support more easily - This will permit to use finup/digest functions with some performance improvements Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: sun4i-ss - fix a few signed warningCorentin LABBE2016-08-161-2/+4
| | | | | | | | | The variable i is always checked against unsigned value and cannot be negative. This patch set it as unsigned. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: marvell - Don't hardcode block size in mv_cesa_ahash_cache_reqRomain Perier2016-08-091-1/+1
| | | | | | | | Don't use 64 'as is', as max block size in mv_cesa_ahash_cache_req. Use CESA_MAX_HASH_BLOCK_SIZE instead, this is better for readability. Signed-off-by: Romain Perier <romain.perier@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: marvell - Don't overwrite default creq->state during initializationRomain Perier2016-08-091-6/+9
| | | | | | | | | | | | Currently, in mv_cesa_{md5,sha1,sha256}_init creq->state is initialized before the call to mv_cesa_ahash_init. This is wrong because this function fills creq with zero by using memset, so its 'state' that contains the default DIGEST is overwritten. This commit fixes the issue by initializing creq->state just after the call to mv_cesa_ahash_init. Fixes: commit b0ef51067cb4 ("crypto: marvell/cesa - initialize hash...") Signed-off-by: Romain Perier <romain.perier@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: marvell - Update transformation context for each dequeued reqRomain Perier2016-08-091-0/+1
| | | | | | | | | | | | | | | | | | So far, sub part of mv_cesa_int was responsible of dequeuing complete requests, then call the 'cleanup' operation on these reqs and call the crypto api callback 'complete'. The problem is that the transformation context 'ctx' is retrieved only once before the while loop. Which means that the wrong 'cleanup' operation might be called on the wrong type of cesa requests, it can lead to memory corruptions with this message: marvell-cesa f1090000.crypto: dma_pool_free cesa_padding, 5a5a5a5a/5a5a5a5a (bad dma) This commit fixes the issue, by updating the transformation context for each dequeued cesa request. Fixes: commit 85030c5168f1 ("crypto: marvell - Add support for chai...") Signed-off-by: Romain Perier <romain.perier@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: marvell - make mv_cesa_ahash_cache_req() return boolThomas Petazzoni2016-08-091-11/+9
| | | | | | | | | | | | | | | The mv_cesa_ahash_cache_req() function always returns 0, which makes its return value pretty much useless. However, in addition to returning a useless value, it also returns a boolean in a variable passed by reference to indicate if the request was already cached. So, this commit changes mv_cesa_ahash_cache_req() to return this boolean. It consequently simplifies the only call site of mv_cesa_ahash_cache_req(), where the "ret" variable is no longer needed. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: marvell - turn mv_cesa_ahash_init() into a function returning voidThomas Petazzoni2016-08-091-3/+1
| | | | | | | | The mv_cesa_ahash_init() function always returns 0, and the return value is anyway never checked. Turn it into a function returning void. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: marvell - remove unused parameter in mv_cesa_ahash_dma_add_cache()Thomas Petazzoni2016-08-091-2/+1
| | | | | | | | The dma_iter parameter of mv_cesa_ahash_dma_add_cache() is never used, so get rid of it. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: marvell - be explicit about destination in mv_cesa_dma_add_op()Thomas Petazzoni2016-08-091-0/+1
| | | | | | | | | | | | | The mv_cesa_dma_add_op() function builds a mv_cesa_tdma_desc structure to copy the operation description to the SRAM, but doesn't explicitly initialize the destination of the copy. It works fine because the operatin description must be copied at the beginning of the SRAM, and the mv_cesa_tdma_desc structure is initialized to zero when allocated. However, it is somewhat confusing to not have a destination defined. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - avoid kernel warnings on probe failureRussell King2016-08-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While debugging setkey issues, the following warnings were found while trying to reinsert the caam module. Fix this by avoiding the duplicated cleanup in the probe path after caam_remove(), which has already cleaned up the resources. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 2346 at /home/rmk/git/linux-rmk/mm/vmalloc.c:1490 __vunmap+0xcc/0xf4 Trying to vfree() nonexistent vm area (f2400000) Modules linked in: caam(+) cbc rfcomm bnep bluetooth nfsd em28xx_rc si2157 si2168 em28xx_dvb uvcvideo snd_soc_imx_sgtl5000 em28xx snd_soc_imx_spdif tveeprom snd_soc_fsl_asoc_card snd_soc_imx_audmux snd_soc_sgtl5000 imx_sdma imx2_wdt coda v4l2_mem2mem videobuf2_dma_contig snd_soc_fsl_ssi rc_cec snd_soc_fsl_spdif imx_pcm_dma videobuf2_vmalloc videobuf2_memops imx_thermal dw_hdmi_ahb_audio dw_hdmi_cec etnaviv fuse rc_pinnacle_pctv_hd [last unloaded: caam] CPU: 0 PID: 2346 Comm: modprobe Tainted: G W 4.8.0-rc1+ #2014 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) Backtrace: [<c0013bb0>] (dump_backtrace) from [<c0013d4c>] (show_stack+0x18/0x1c) [<c0013d34>] (show_stack) from [<c0357c00>] (dump_stack+0xa4/0xdc) [<c0357b5c>] (dump_stack) from [<c002e650>] (__warn+0xdc/0x108) [<c002e574>] (__warn) from [<c002e734>] (warn_slowpath_fmt+0x40/0x48) [<c002e6f8>] (warn_slowpath_fmt) from [<c0151708>] (__vunmap+0xcc/0xf4) [<c015163c>] (__vunmap) from [<c015177c>] (vunmap+0x4c/0x54) [<c0151730>] (vunmap) from [<c001f48c>] (__iounmap+0x2c/0x30) [<c001f460>] (__iounmap) from [<c001f118>] (iounmap+0x1c/0x20) [<c001f0fc>] (iounmap) from [<bf247ae4>] (caam_probe+0x3dc/0x1498 [caam]) [<bf247708>] (caam_probe [caam]) from [<c042da8c>] (platform_drv_probe+0x58/0xb8) [<c042da34>] (platform_drv_probe) from [<c042bb4c>] (driver_probe_device+0x1fc/0x2b8) [<c042b950>] (driver_probe_device) from [<c042bcc4>] (__driver_attach+0xbc/0xc0) r10:00000000 r8:bf24b000 r7:00000000 r6:ef215844 r5:bf2490c4 r4:ef215810 [<c042bc08>] (__driver_attach) from [<c0429f14>] (bus_for_each_dev+0x5c/0x90) [<c0429eb8>] (bus_for_each_dev) from [<c042b358>] (driver_attach+0x24/0x28) [<c042b334>] (driver_attach) from [<c042b058>] (bus_add_driver+0xf4/0x200) [<c042af64>] (bus_add_driver) from [<c042cadc>] (driver_register+0x80/0xfc) [<c042ca5c>] (driver_register) from [<c042d960>] (__platform_driver_register+0x48/0x4c) [<c042d918>] (__platform_driver_register) from [<bf24b018>] (caam_driver_init+0x18/0x24 [caam]) [<bf24b000>] (caam_driver_init [caam]) from [<c00098ac>] (do_one_initcall+0x44/0x178) [<c0009868>] (do_one_initcall) from [<c010e034>] (do_init_module+0x68/0x1d8) [<c010dfcc>] (do_init_module) from [<c00c8fbc>] (load_module+0x1974/0x20b0) [<c00c7648>] (load_module) from [<c00c98d0>] (SyS_finit_module+0x94/0xa0) [<c00c983c>] (SyS_finit_module) from [<c000fda0>] (ret_fast_syscall+0x0/0x1c) ---[ end trace 34e3370d88bb1786 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 2346 at /home/rmk/git/linux-rmk/drivers/clk/clk.c:594 clk_core_disable+0xe4/0x26c Modules linked in: caam(+) cbc rfcomm bnep bluetooth nfsd em28xx_rc si2157 si2168 em28xx_dvb uvcvideo snd_soc_imx_sgtl5000 em28xx snd_soc_imx_spdif tveeprom snd_soc_fsl_asoc_card snd_soc_imx_audmux snd_soc_sgtl5000 imx_sdma imx2_wdt coda v4l2_mem2mem videobuf2_dma_contig snd_soc_fsl_ssi rc_cec snd_soc_fsl_spdif imx_pcm_dma videobuf2_vmalloc videobuf2_memops imx_thermal dw_hdmi_ahb_audio dw_hdmi_cec etnaviv fuse rc_pinnacle_pctv_hd [last unloaded: caam] CPU: 0 PID: 2346 Comm: modprobe Tainted: G W 4.8.0-rc1+ #2014 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) Backtrace: [<c0013bb0>] (dump_backtrace) from [<c0013d4c>] (show_stack+0x18/0x1c) [<c0013d34>] (show_stack) from [<c0357c00>] (dump_stack+0xa4/0xdc) [<c0357b5c>] (dump_stack) from [<c002e650>] (__warn+0xdc/0x108) [<c002e574>] (__warn) from [<c002e6a4>] (warn_slowpath_null+0x28/0x30) [<c002e67c>] (warn_slowpath_null) from [<c05b113c>] (clk_core_disable+0xe4/0x26c) [<c05b1058>] (clk_core_disable) from [<c05b2e3c>] (clk_core_disable_lock+0x20/0x2c) [<c05b2e1c>] (clk_core_disable_lock) from [<c05b2e6c>] (clk_disable+0x24/0x28) [<c05b2e48>] (clk_disable) from [<bf247b04>] (caam_probe+0x3fc/0x1498 [caam]) [<bf247708>] (caam_probe [caam]) from [<c042da8c>] (platform_drv_probe+0x58/0xb8) [<c042da34>] (platform_drv_probe) from [<c042bb4c>] (driver_probe_device+0x1fc/0x2b8) [<c042b950>] (driver_probe_device) from [<c042bcc4>] (__driver_attach+0xbc/0xc0) r10:00000000 r8:bf24b000 r7:00000000 r6:ef215844 r5:bf2490c4 r4:ef215810 [<c042bc08>] (__driver_attach) from [<c0429f14>] (bus_for_each_dev+0x5c/0x90) [<c0429eb8>] (bus_for_each_dev) from [<c042b358>] (driver_attach+0x24/0x28) [<c042b334>] (driver_attach) from [<c042b058>] (bus_add_driver+0xf4/0x200) [<c042af64>] (bus_add_driver) from [<c042cadc>] (driver_register+0x80/0xfc) [<c042ca5c>] (driver_register) from [<c042d960>] (__platform_driver_register+0x48/0x4c) [<c042d918>] (__platform_driver_register) from [<bf24b018>] (caam_driver_init+0x18/0x24 [caam]) [<bf24b000>] (caam_driver_init [caam]) from [<c00098ac>] (do_one_initcall+0x44/0x178) [<c0009868>] (do_one_initcall) from [<c010e034>] (do_init_module+0x68/0x1d8) [<c010dfcc>] (do_init_module) from [<c00c8fbc>] (load_module+0x1974/0x20b0) [<c00c7648>] (load_module) from [<c00c98d0>] (SyS_finit_module+0x94/0xa0) [<c00c983c>] (SyS_finit_module) from [<c000fda0>] (ret_fast_syscall+0x0/0x1c) ---[ end trace 34e3370d88bb1787 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 2346 at /home/rmk/git/linux-rmk/drivers/clk/clk.c:476 clk_core_unprepare+0x204/0x388 Modules linked in: caam(+) cbc rfcomm bnep bluetooth nfsd em28xx_rc si2157 si2168 em28xx_dvb uvcvideo snd_soc_imx_sgtl5000 em28xx snd_soc_imx_spdif tveeprom snd_soc_fsl_asoc_card snd_soc_imx_audmux snd_soc_sgtl5000 imx_sdma imx2_wdt coda v4l2_mem2mem videobuf2_dma_contig snd_soc_fsl_ssi rc_cec snd_soc_fsl_spdif imx_pcm_dma videobuf2_vmalloc videobuf2_memops imx_thermal dw_hdmi_ahb_audio dw_hdmi_cec etnaviv fuse rc_pinnacle_pctv_hd [last unloaded: caam] CPU: 0 PID: 2346 Comm: modprobe Tainted: G W 4.8.0-rc1+ #2014 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) Backtrace: [<c0013bb0>] (dump_backtrace) from [<c0013d4c>] (show_stack+0x18/0x1c) [<c0013d34>] (show_stack) from [<c0357c00>] (dump_stack+0xa4/0xdc) [<c0357b5c>] (dump_stack) from [<c002e650>] (__warn+0xdc/0x108) [<c002e574>] (__warn) from [<c002e6a4>] (warn_slowpath_null+0x28/0x30) [<c002e67c>] (warn_slowpath_null) from [<c05b0834>] (clk_core_unprepare+0x204/0x388) [<c05b0630>] (clk_core_unprepare) from [<c05b4c0c>] (clk_unprepare+0x2c/0x34) [<c05b4be0>] (clk_unprepare) from [<bf247b0c>] (caam_probe+0x404/0x1498 [caam]) [<bf247708>] (caam_probe [caam]) from [<c042da8c>] (platform_drv_probe+0x58/0xb8) [<c042da34>] (platform_drv_probe) from [<c042bb4c>] (driver_probe_device+0x1fc/0x2b8) [<c042b950>] (driver_probe_device) from [<c042bcc4>] (__driver_attach+0xbc/0xc0) r10:00000000 r8:bf24b000 r7:00000000 r6:ef215844 r5:bf2490c4 r4:ef215810 [<c042bc08>] (__driver_attach) from [<c0429f14>] (bus_for_each_dev+0x5c/0x90) [<c0429eb8>] (bus_for_each_dev) from [<c042b358>] (driver_attach+0x24/0x28) [<c042b334>] (driver_attach) from [<c042b058>] (bus_add_driver+0xf4/0x200) [<c042af64>] (bus_add_driver) from [<c042cadc>] (driver_register+0x80/0xfc) [<c042ca5c>] (driver_register) from [<c042d960>] (__platform_driver_register+0x48/0x4c) [<c042d918>] (__platform_driver_register) from [<bf24b018>] (caam_driver_init+0x18/0x24 [caam]) [<bf24b000>] (caam_driver_init [caam]) from [<c00098ac>] (do_one_initcall+0x44/0x178) [<c0009868>] (do_one_initcall) from [<c010e034>] (do_init_module+0x68/0x1d8) [<c010dfcc>] (do_init_module) from [<c00c8fbc>] (load_module+0x1974/0x20b0) [<c00c7648>] (load_module) from [<c00c98d0>] (SyS_finit_module+0x94/0xa0) [<c00c983c>] (SyS_finit_module) from [<c000fda0>] (ret_fast_syscall+0x0/0x1c) ---[ end trace 34e3370d88bb1788 ]--- Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - get rid of taskletRussell King2016-08-092-17/+9
| | | | | | | | | | | | | | | | | | Threaded interrupts can perform the function of the tasklet, and much more safely too - without races when trying to take the tasklet and interrupt down on device removal. With the old code, there is a window where we call tasklet_kill(). If the interrupt handler happens to be running on a different CPU, and subsequently calls tasklet_schedule(), the tasklet will be re-scheduled for execution. Switching to a hardirq/threadirq combination implementation avoids this, and it also means generic code deals with the teardown sequencing of the threaded and non-threaded parts. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - add ahash_edesc_add_src()Russell King2016-08-091-80/+57
| | | | | | | Add a helper to map the source scatterlist into the descriptor. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - move job descriptor initialisation to ahash_edesc_alloc()Russell King2016-08-091-50/+34
| | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - add ahash_edesc_alloc() for descriptor allocationRussell King2016-08-091-27/+33
| | | | | | | Add a helper function to perform the descriptor allocation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - check and use dma_map_sg() return codeRussell King2016-08-091-35/+103
| | | | | | | | | | | | | Strictly, dma_map_sg() may coalesce SG entries, but in practise on iMX hardware, this will never happen. However, dma_map_sg() can fail, and we completely fail to check its return value. So, fix this properly. Arrange the code to map the scatterlist early, so we know how many scatter table entries to allocate, and then fill them in. This allows us to keep relatively simple error cleanup paths. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - ensure that we clean up after an errorRussell King2016-08-091-53/+79
| | | | | | | | Ensure that we clean up allocations and DMA mappings after encountering an error rather than just giving up and leaking memory and resources. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - replace sec4_sg pointer with arrayRussell King2016-08-091-9/+3
| | | | | | | | | | | Since the extended descriptor includes the hardware descriptor, and the sec4 scatterlist immediately follows this, we can declare it as a array at the very end of the extended descriptor. This allows us to get rid of an initialiser for every site where we allocate an extended descriptor. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - mark the hardware descriptor as cache line alignedRussell King2016-08-091-1/+1
| | | | | | | | | | Mark the hardware descriptor as being cache line aligned; on DMA incoherent architectures, the hardware descriptor should sit in a separate cache line from the CPU accessed data to avoid polluting the caches. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - incorporate job descriptor into struct ahash_edescRussell King2016-08-091-30/+19
| | | | | | | | | Rather than giving the descriptor as hw_desc[0], give it's real size. All places where we allocate an ahash_edesc incorporate DESC_JOB_IO_LEN bytes of job descriptor. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - ensure descriptor buffers are cacheline alignedRussell King2016-08-091-7/+7
| | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - fix DMA API mapping leakRussell King2016-08-091-9/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | caamhash contains this weird code: src_nents = sg_count(req->src, req->nbytes); dma_map_sg(jrdev, req->src, src_nents ? : 1, DMA_TO_DEVICE); ... edesc->src_nents = src_nents; sg_count() returns zero when sg_nents_for_len() returns zero or one. This means we don't need to use a hardware scatterlist. However, setting src_nents to zero causes problems when we unmap: if (edesc->src_nents) dma_unmap_sg_chained(dev, req->src, edesc->src_nents, DMA_TO_DEVICE, edesc->chained); as zero here means that we have no entries to unmap. This causes us to leak DMA mappings, where we map one scatterlist entry and then fail to unmap it. This can be fixed in two ways: either by writing the number of entries that were requested of dma_map_sg(), or by reworking the "no SG required" case. We adopt the re-work solution here - we replace sg_count() with sg_nents_for_len(), so src_nents now contains the real number of scatterlist entries, and we then change the test for using the hardware scatterlist to src_nents > 1 rather than just non-zero. This change passes my sshd, openssl tests hashing /bin and tcrypt tests. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: img-hash - Fix set_reqsize callWill Thomas2016-08-091-0/+1
| | | | | | | Properly allocate enough memory to respect the fallback. Signed-off-by: Will Thomas <will.thomas@imgtec.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: img-hash - log a successful probeJames Hartley2016-08-091-1/+1
| | | | | | | | | | Currently the probe function only emits an output on success when debug is specifically enabled. It would be more useful if this happens by default. Signed-off-by: James Hartley <james.hartley@imgtec.com> Reviewed-by: Will Thomas <will.thomas@imgtec.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: img-hash - Add support for export and importJames Hartley2016-08-091-6/+63
| | | | | | | | | | | | Currently the img-hash accelerator does not probe successfully due to a change in the checks made during registration with the crypto framework. This is due to import and export functions not being defined. Correct this. Signed-off-by: James Hartley <james.hartley@imgtec.com> Signed-off-by: Will Thomas <will.thomas@imgtec.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: img-hash - Add suspend resume hooks for img hashGovindraj Raja2016-08-091-0/+27
| | | | | | | | | | | | Current img hash claims sys and periph gate clocks and this can be gated in system suspend scenarios. Add support for Device pm ops for img hash to gate the clocks claimed by img hash. Signed-off-by: Govindraj Raja <Govindraj.Raja@imgtec.com> Reviewed-by: Will Thomas <will.thomas@imgtec.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: img-hash - Reconfigure DMA Burst lengthWill Thomas2016-08-091-1/+2
| | | | | | | | | | Burst length of 16 drives the hash accelerator out of spec and causes stability issues in some cases. Reduce this to stop data being lost. Signed-off-by: Will Thomas <will.thomas@imgtec.com> Reviewed-by: James Hartley <james.hartley@imgtec.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: img-hash - Fix hash request contextWill Thomas2016-08-091-1/+3
| | | | | | | | | | | Move 0 length buffer to end of structure to stop overwriting fallback request data. This doesn't cause a bug itself as the buffer is never used alongside the fallback but should be changed. Signed-off-by: Will Thomas <will.thomas@imgtec.com> Reviewed-by: James Hartley <james.hartley@imgtec.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: img-hash - Fix null pointer exceptionWill Thomas2016-08-091-1/+1
| | | | | | | | Sporadic null pointer exceptions came from here. Fix them. Signed-off-by: Will Thomas <will.thomas@imgtec.com> Reviewed-by: James Hartley <james.hartley@imgtec.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Enable use of the additional CCPGary R Hook2016-08-093-1/+46
| | | | | | | | | | | | | A second CCP is available, identical to the first, with its ownn PCI ID. Make it available for use by the crypto subsystem, as well as for DMA activity and random number generation. This device is not pre-configured at at boot time. The driver must configure it (during the probe) for use. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Enable DMA service on a v5 CCPGary R Hook2016-08-091-0/+8
| | | | | | | | Every CCP is capable of providing general DMA services. Register the device as a provider. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Add support for the RNG in a version 5 CCPGary R Hook2016-08-094-9/+36
| | | | | Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Let a v5 CCP provide the same function as v3Gary R Hook2016-08-097-117/+1340
| | | | | | | | | | Enable equivalent function on a v5 CCP. Add support for a version 5 CCP which enables AES/XTS/SHA services. Also, more work on the data structures to virtualize functionality. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Refactor code to enable checks for queue space.Gary R Hook2016-08-093-2/+9
| | | | | | | | | Available queue space is used to decide (by counting free slots) if we have to put a command on hold or if it can be sent to the engine immediately. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Refactor code supporting the CCP's RNGGary R Hook2016-08-093-40/+40
| | | | | | | | Make the RNG support code common (where possible) in preparation for adding a v5 device. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Refactor the storage block allocation codeGary R Hook2016-08-093-80/+98
| | | | | | | | | | | | Move the KSB access/management functions to the v3 device file, and add function pointers to the actions structure. At the operations layer all of the references to the storage block will be generic (virtual). This is in preparation for a version 5 device, in which the private storage block is managed differently. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Refactoring: symbol cleanupGary R Hook2016-08-094-173/+175
| | | | | | | | | | | | | Form and use of the local storage block in the CCP is particular to the device version. Much of the code that accesses the storage block can treat it as a virtual resource, and will under go some renaming. Device-specific access to the memory will be moved into device file. Service functions will be added to the actions structure. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Shorten the fields of the action structureGary R Hook2016-08-093-22/+23
| | | | | | | Use more concise field names; "perform_" is too verbose. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Abstract PCI info for the CCPGary R Hook2016-08-093-8/+13
| | | | | | | | Device-specific values for the BAR and offset should be found in the version data structure. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ccp - Fix non-conforming comment styleGary R Hook2016-08-091-16/+8
| | | | | | | Adhere to the cryptodev comment convention. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ixp4xx - Add missing npe_c release in error branchesQuentin Lambert2016-08-091-2/+4
| | | | | | | | | | | Most error branches following the call to npe_request contain a call to npe_request. This patch add a call to npe_release to error branches following the call to npe_request that do not have it. This issue was found with Hector. Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ixp4xx - Fix a "simple if" coding style warningQuentin Lambert2016-08-091-2/+1
| | | | | Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - fix non-hmac hashesRussell King2016-08-091-0/+1
| | | | | | | | | | | | | | | Since 6de62f15b581 ("crypto: algif_hash - Require setkey before accept(2)"), the AF_ALG interface requires userspace to provide a key to any algorithm that has a setkey method. However, the non-HMAC algorithms are not keyed, so setting a key is unnecessary. Fix this by removing the setkey method from the non-keyed hash algorithms. Fixes: 6de62f15b581 ("crypto: algif_hash - Require setkey before accept(2)") Cc: <stable@vger.kernel.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: caam - defer aead_set_sh_desc in case of zero authsizeHoria Geantă2016-08-081-0/+3
| | | | | | | | | | | | | | | | | To be able to generate shared descriptors for AEAD, the authentication size needs to be known. However, there is no imposed order of calling .setkey, .setauthsize callbacks. Thus, in case authentication size is not known at .setkey time, defer it until .setauthsize is called. The authsize != 0 check was incorrectly removed when converting the driver to the new AEAD interface. Cc: <stable@vger.kernel.org> # 4.3+ Fixes: 479bcc7c5b9e ("crypto: caam - Convert authenc to new AEAD interface") Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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