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path: root/drivers/crypto/allwinner
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2023-08-23crypto: drivers - Explicitly include correct DT includesRob Herring3-3/+0
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-08-18crypto: sun8i-ss - Use new crypto_engine_op interfaceHerbert Xu4-131/+177
Use the new crypto_engine_op interface where the callback is stored in the algorithm object. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-08-18crypto: sun8i-ce - Use new crypto_engine_op interfaceHerbert Xu4-125/+180
Use the new crypto_engine_op interface where the callback is stored in the algorithm object. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-08-18crypto: sun8i-ss - Remove prepare/unprepare requestHerbert Xu2-4/+0
The callbacks for prepare and unprepare request in crypto_engine is superfluous. They can be done directly from do_one_request. Move the code into do_one_request and remove the unused callbacks. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-08-18crypto: sun8i-ce - Remove prepare/unprepare requestHerbert Xu2-8/+14
The callbacks for prepare and unprepare request in crypto_engine is superfluous. They can be done directly from do_one_request. Move the code into do_one_request and remove the unused callbacks. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-08-18crypto: allwinner - Remove unused function declarationsYue Haibing2-5/+0
Commit 06f751b61329 ("crypto: allwinner - Add sun8i-ce Crypto Engine") declared but never implemented sun8i_ce_enqueue(). Commit 56f6d5aee88d ("crypto: sun8i-ce - support hash algorithms") declared but never implemented sun8i_ce_hash(). Commit f08fcced6d00 ("crypto: allwinner - Add sun8i-ss cryptographic offloader") declared but never implemented sun8i_ss_enqueue(). Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-06-13crypto: update some Arm documentation referencesJonathan Corbet13-13/+13
The Arm documentation has moved to Documentation/arch/arm; update a set of references under crypto/allwinner to match. Cc: Corentin Labbe <clabbe.montjoie@gmail.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Samuel Holland <samuel@sholland.org> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-04-28crypto: sun8i-ss - Fix a test in sun8i_ss_setup_ivs()Christophe JAILLET1-1/+1
SS_ENCRYPTION is (0 << 7 = 0), so the test can never be true. Use a direct comparison to SS_ENCRYPTION instead. The same king of test is already done the same way in sun8i_ss_run_task(). Fixes: 359e893e8af4 ("crypto: sun8i-ss - rework handling of IV") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-01-13crypto: sun8i-ce - Add TRNG clock to the D1 variantSamuel Holland2-1/+2
At least the D1 variant requires a separate clock for the TRNG. Without this clock enabled, reading from /dev/hwrng reports: sun8i-ce 3040000.crypto: DMA timeout for TRNG (tm=96) on flow 3 Experimentation shows that the necessary clock is the SoC's internal RC oscillator. This makes sense, as noise from the oscillator can be used as a source of entropy. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-01-06crypto: sun8i-ss - Remove GFP_DMA and add DMA alignment paddingHerbert Xu4-11/+21
GFP_DMA does not guarantee that the returned memory is aligned for DMA. In fact for sun8i-ss it is superfluous and can be removed. However, kmalloc may start returning DMA-unaligned memory in future so fix this by adding the alignment by hand. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-11-18hwrng: core - treat default_quality as a maximum and default to 1024Jason A. Donenfeld1-1/+0
Most hw_random devices return entropy which is assumed to be of full quality, but driver authors don't bother setting the quality knob. Some hw_random devices return less than full quality entropy, and then driver authors set the quality knob. Therefore, the entropy crediting should be opt-out rather than opt-in per-driver, to reflect the actual reality on the ground. For example, the two Raspberry Pi RNG drivers produce full entropy randomness, and both EDK2 and U-Boot's drivers for these treat them as such. The result is that EFI then uses these numbers and passes the to Linux, and Linux credits them as boot, thereby initializing the RNG. Yet, in Linux, the quality knob was never set to anything, and so on the chance that Linux is booted without EFI, nothing is ever credited. That's annoying. The same pattern appears to repeat itself throughout various drivers. In fact, very very few drivers have bothered setting quality=1024. Looking at the git history of existing drivers and corresponding mailing list discussion, this conclusion tracks. There's been a decent amount of discussion about drivers that set quality < 1024 -- somebody read and interepreted a datasheet, or made some back of the envelope calculation somehow. But there's been very little, if any, discussion about most drivers where the quality is just set to 1024 or unset (or set to 1000 when the authors misunderstood the API and assumed it was base-10 rather than base-2); in both cases the intent was fairly clear of, "this is a hardware random device; it's fine." So let's invert this logic. A hw_random struct's quality knob now controls the maximum quality a driver can produce, or 0 to specify 1024. Then, the module-wide switch called "default_quality" is changed to represent the maximum quality of any driver. By default it's 1024, and the quality of any particular driver is then given by: min(default_quality, rng->quality ?: 1024); This way, the user can still turn this off for weird reasons (and we can replace whatever driver-specific disabling hacks existed in the past), yet we get proper crediting for relevant RNGs. Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: sun8i-ss - use dma_addr instead u32Corentin Labbe1-1/+1
The DMA address need to be stored in a dma_addr_t Fixes: 359e893e8af4 ("crypto: sun8i-ss - rework handling of IV") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-09-24crypto: sun4i-ss - use DEFINE_SHOW_ATTRIBUTE to simplify sun4i_ss_debugfsLiu Shixin1-14/+2
Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-09-02Revert "crypto: allwinner - Fix dma_map_sg error check"Herbert Xu4-7/+7
This reverts commit 2b02187bdb0bb75000850bd0309e70eb8664159e. The original code was correct and arguably more robust than the patched version. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-08-26crypto: allwinner - Fix dma_map_sg error checkJack Wang4-7/+7
dma_map_sg return 0 on error. Cc: Corentin Labbe <clabbe.montjoie@gmail.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Cc: Samuel Holland <samuel@sholland.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Minghao Chi <chi.minghao@zte.com.cn> Cc: Peng Wu <wupeng58@huawei.com> Cc: Alexey Khoroshilov <khoroshilov@ispras.ru> Cc: linux-crypto@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@lists.linux.dev Cc: linux-kernel@vger.kernel.org Signed-off-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-08-19crypto: sun8i-ce - using the pm_runtime_resume_and_get to simplify the codeye xingchen1-4/+2
Using pm_runtime_resume_and_get() to instade of pm_runtime_get_sync and pm_runtime_put_noidle. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-06-17crypto: sun8i-ss - fix infinite loop in sun8i_ss_setup_ivs()Alexey Khoroshilov1-0/+1
There is no i decrement in while (i >= 0) loop. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Fixes: 359e893e8af4 ("crypto: sun8i-ss - rework handling of IV") Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-06-10crypto: sun8i-ss - fix a NULL vs IS_ERR() check in sun8i_ss_hashkeyPeng Wu1-2/+2
The crypto_alloc_shash() function never returns NULL. It returns error pointers. Fixes: 801b7d572c0a ("crypto: sun8i-ss - add hmac(sha1)") Signed-off-by: Peng Wu <wupeng58@huawei.com> Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-06-10crypto: sun8i-ss - Fix error codes for dma_mapping_error()Dan Carpenter1-2/+4
If there is a dma_mapping_error() then return negative error codes. Currently this code returns success. Fixes: 801b7d572c0a ("crypto: sun8i-ss - add hmac(sha1)") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-06-10crypto: sun8i-ss - fix error codes in allocate_flows()Dan Carpenter1-4/+12
These failure paths should return -ENOMEM. Currently they return success. Fixes: 359e893e8af4 ("crypto: sun8i-ss - rework handling of IV") Fixes: 8eec4563f152 ("crypto: sun8i-ss - do not allocate memory when handling hash requests") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ce - do not fallback if cryptlen is less than sg lengthCorentin Labbe1-2/+10
The sg length could be more than remaining data on it. So check the length requirement against the minimum between those two values. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ce - rework debuggingCorentin Labbe4-19/+96
The "Fallback for xxx" message is annoying, remove it and store the information in the debugfs. Let's add more precise fallback stats and display it better. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ce - use sg_nents_for_lenCorentin Labbe2-18/+15
When testing with some large SG list, the sun8i-ce drivers always fallback even if it can handle it. So use sg_nents_for_len() which permits to see less SGs than needed. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ce - Add function for handling hash paddingCorentin Labbe1-30/+65
Move all padding work to a dedicated function. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - do not fallback if cryptlen is less than sg lengthCorentin Labbe1-10/+9
The sg length could be more than remaining data on it. So check the length requirement against the minimum between those two values. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - add hmac(sha1)Corentin Labbe3-6/+231
Even if sun8i-ss does not handle hmac(sha1) directly, we can provide one which use the already supported acceleration of sha1. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - Add function for handling hash paddingCorentin Labbe1-22/+65
Move all padding work to a dedicated function. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - rework debuggingCorentin Labbe4-22/+83
The "Fallback for xxx" message is annoying, remove it and store the information in the debugfs. In the same time, reports more fallback statistics. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - handle requests if last block is not modulo 64Corentin Labbe3-10/+29
The current sun8i-ss handle only requests with all SG length being modulo 64. But the last SG could be always handled by copying it on the pad buffer. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - do not zeroize all padCorentin Labbe1-2/+4
Instead of memset all pad buffer, it is faster to only put 0 where needed. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - do not allocate memory when handling hash requestsCorentin Labbe3-12/+17
Instead of allocate memory on each requests, it is easier to pre-allocate buffers. This made error path easier. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - use sg_nents_for_lenCorentin Labbe1-13/+10
When testing with some large SG list, the sun8i-ss drivers always fallback even if it can handle it. So use sg_nents_for_len() which permits to see less SGs than needed. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - test error before assigningCorentin Labbe1-4/+4
The first thing we should do after dma_map_single() is to test the result. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - remove redundant testCorentin Labbe1-11/+1
Some fallback tests were redundant with what sun8i_ss_hash_need_fallback() already do. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - handle zero sized sgCorentin Labbe1-1/+9
sun8i-ss does not handle well the possible zero sized sg. Fixes: d9b45418a917 ("crypto: sun8i-ss - support hash algorithms") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ss - rework handling of IVCorentin Labbe3-52/+107
sun8i-ss fail handling IVs when doing decryption of multiple SGs in-place. It should backup the last block of each SG source for using it later as IVs. In the same time remove allocation on requests path for storing all IVs. Fixes: f08fcced6d00 ("crypto: allwinner - Add sun8i-ss cryptographic offloader") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun4i-ss - do not allocate backup IV on requestsCorentin Labbe2-14/+9
Instead of allocate memory on each requests, it is easier to pre-allocate buffer for backup IV. This made error path easier. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ce - do not allocate memory when handling requestsCorentin Labbe3-28/+29
Instead of allocate memory on each requests, it is easier to pre-allocate buffer for IV. This made error path easier. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-05-13crypto: sun8i-ce - Fix minor style issueCorentin Labbe1-1/+0
This patch remove a double blank line. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-04-29crypto: sun8i-ce - using pm_runtime_resume_and_get instead of ↵Minghao Chi1-4/+2
pm_runtime_get_sync Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-04-29crypto: sun8i-ss - using pm_runtime_resume_and_get instead of ↵Minghao Chi1-4/+2
pm_runtime_get_sync Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-03-03crypto: sun8i-ce - call finalize with bh disabledCorentin Labbe2-0/+6
Doing ipsec produces a spinlock recursion warning. This is due to not disabling BH during crypto completion function. Fixes: 06f751b61329 ("crypto: allwinner - Add sun8i-ce Crypto Engine") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-03-03crypto: sun8i-ss - call finalize with bh disabledCorentin Labbe2-0/+6
Doing ipsec produces a spinlock recursion warning. This is due to not disabling BH during crypto completion function. Fixes: f08fcced6d00 ("crypto: allwinner - Add sun8i-ss cryptographic offloader") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-01-31crypto: sun8i-ss - really disable hash on A80Corentin Labbe1-0/+2
When adding hashes support to sun8i-ss, I have added them only on A83T. But I forgot that 0 is a valid algorithm ID, so hashes are enabled on A80 but with an incorrect ID. Anyway, even with correct IDs, hashes do not work on A80 and I cannot find why. So let's disable all of them on A80. Fixes: d9b45418a917 ("crypto: sun8i-ss - support hash algorithms") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-11-26crypto: sun8i-ce - Add support for the D1 variantCorentin Labbe2-0/+22
The Allwinner D1 SoC has a crypto engine compatible with sun8i-ce. Add support for it. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-08-12crypto: sun8i-ce - use kfree_sensitive to clear and free sensitive dataJason Wang2-8/+4
The kfree_sensitive is a kernel API to clear sensitive information that should not be leaked to other future users of the same memory objects and free the memory. Its function is the same as the combination of memzero_explicit and kfree. Thus, we can replace the combination APIs with the single kfree_sensitive API. Signed-off-by: Jason Wang <wangborong@cdjrlc.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-07-30crypto: sun8i-ss - Use kfree_sensitiveJason Wang1-6/+3
The kfree_sensitive is a kernel API to clear sensitive information that should not be leaked to other future users of the same memory objects and free the memory. Its function is the same as the combination of memzero_explicit and kfree. Thus, we can replace the combination APIs with the single kfree_sensitive API. Signed-off-by: Jason Wang <wangborong@cdjrlc.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-04-16crypto: sun8i-ce - Fix PM reference leak in sun8i_ce_probe()Shixin Liu1-1/+1
pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Signed-off-by: Shixin Liu <liushixin2@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-04-16crypto: sun8i-ss - Fix PM reference leak when pm_runtime_get_sync() failsShixin Liu2-2/+2
pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Signed-off-by: Shixin Liu <liushixin2@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-04-16crypto: sun4i-ss - Fix PM reference leak when pm_runtime_get_sync() failsShixin Liu4-4/+4
pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Signed-off-by: Shixin Liu <liushixin2@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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