wireguard-linux/drivers/char/hw_random, branch update-toolchain

Merge tag 'v6.11-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2024-07-19T15:52:58Z

Pull crypto update from Herbert Xu: "API: - Test setkey in no-SIMD context - Add skcipher speed test for user-specified algorithm Algorithms: - Add x25519 support on ppc64le - Add VAES and AVX512 / AVX10 optimized AES-GCM on x86 - Remove sm2 algorithm Drivers: - Add Allwinner H616 support to sun8i-ce - Use DMA in stm32 - Add Exynos850 hwrng support to exynos" * tag 'v6.11-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (81 commits) hwrng: core - remove (un)register_miscdev() crypto: lib/mpi - delete unnecessary condition crypto: testmgr - generate power-of-2 lengths more often crypto: mxs-dcp - Ensure payload is zero when using key slot hwrng: Kconfig - Do not enable by default CN10K driver crypto: starfive - Fix nent assignment in rsa dec crypto: starfive - Align rsa input data to 32-bit crypto: qat - fix unintentional re-enabling of error interrupts crypto: qat - extend scope of lock in adf_cfg_add_key_value_param() Documentation: qat: fix auto_reset attribute details crypto: sun8i-ce - add Allwinner H616 support crypto: sun8i-ce - wrap accesses to descriptor address fields dt-bindings: crypto: sun8i-ce: Add compatible for H616 hwrng: core - Fix wrong quality calculation at hw rng registration hwrng: exynos - Enable Exynos850 support hwrng: exynos - Add SMC based TRNG operation hwrng: exynos - Implement bus clock control hwrng: exynos - Use devm_clk_get_enabled() to get the clock hwrng: exynos - Improve coding style dt-bindings: rng: Add Exynos850 support to exynos-trng ...

hwrng: core - remove (un)register_miscdev()

2024-07-12T23:50:28Z

These functions are redundant after commit 0daa7a0afd0f ("hwrng: Avoid manual device_create_file() calls"). Let's call misc_(de)register() directly. Signed-off-by: Masahiro Yamada Signed-off-by: Herbert Xu

hwrng: Kconfig - Do not enable by default CN10K driver

2024-07-12T23:50:27Z

Do not enable by default the CN10K HW random generator driver. CN10K Random Number Generator is available only on some specific Marvell SoCs, however the driver is in practice enabled by default on all arm64 configs. Signed-off-by: Francesco Dolcini Signed-off-by: Herbert Xu

hwrng: core - Fix wrong quality calculation at hw rng registration

2024-06-28T01:35:49Z

When there are rng sources registering at the hwrng core via hwrng_register() a struct hwrng is delivered. There is a quality field in there which is used to decide which of the registered hw rng sources will be used by the hwrng core. With commit 16bdbae39428 ("hwrng: core - treat default_quality as a maximum and default to 1024") there came in a new default of 1024 in case this field is empty and all the known hw rng sources at that time had been reworked to not fill this field and thus use the default of 1024. The code choosing the 'better' hw rng source during registration of a new hw rng source has never been adapted to this and thus used 0 if the hw rng implementation does not fill the quality field. So when two rng sources register, one with 0 (meaning 1024) and the other one with 999, the 999 hw rng will be chosen. As the later invoked function hwrng_init() anyway adjusts the quality field of the hw rng source, this adjustment is now done during registration of this new hw rng source. Tested on s390 with two hardware rng sources: crypto cards and trng true random generator device driver. Fixes: 16bdbae39428 ("hwrng: core - treat default_quality as a maximum and default to 1024") Reported-by: Christian Rund Suggested-by: Herbert Xu Signed-off-by: Harald Freudenberger Signed-off-by: Herbert Xu

hwrng: exynos - Enable Exynos850 support

2024-06-28T01:35:49Z

Add Exynos850 compatible and its driver data. It's only possible to access TRNG block via SMC calls in Exynos850, so specify that fact using EXYNOS_SMC flag in the driver data. Signed-off-by: Sam Protsenko Reviewed-by: Krzysztof Kozlowski Acked-by: Łukasz Stelmach Signed-off-by: Herbert Xu

hwrng: exynos - Add SMC based TRNG operation

2024-06-28T01:35:49Z

On some Exynos chips like Exynos850 the access to Security Sub System (SSS) registers is protected with TrustZone, and therefore only possible from EL3 monitor software. The Linux kernel is running in EL1, so the only way for the driver to obtain TRNG data is via SMC calls to EL3 monitor. Implement such SMC operation and use it when EXYNOS_SMC flag is set in the corresponding chip driver data. Signed-off-by: Sam Protsenko Reviewed-by: Krzysztof Kozlowski Signed-off-by: Herbert Xu

hwrng: exynos - Implement bus clock control

2024-06-28T01:35:48Z

Some SoCs like Exynos850 might require the SSS bus clock (PCLK) to be enabled in order to access TRNG registers. Add and handle the optional PCLK clock accordingly to make it possible. Signed-off-by: Sam Protsenko Reviewed-by: Krzysztof Kozlowski Reviewed-by: Anand Moon Signed-off-by: Herbert Xu

hwrng: exynos - Use devm_clk_get_enabled() to get the clock

2024-06-28T01:35:48Z

Use devm_clk_get_enabled() helper instead of calling devm_clk_get() and then clk_prepare_enable(). It simplifies the error handling and makes the code more compact. Also use dev_err_probe() to handle possible -EPROBE_DEFER errors if the clock is not available yet. Signed-off-by: Sam Protsenko Reviewed-by: Krzysztof Kozlowski Reviewed-by: Anand Moon Signed-off-by: Herbert Xu

hwrng: exynos - Improve coding style

2024-06-28T01:35:48Z

Fix obvious style issues. Some of those were found with checkpatch, and some just contradict the kernel coding style guide. No functional change. Signed-off-by: Sam Protsenko Reviewed-by: Krzysztof Kozlowski Acked-by: Łukasz Stelmach Signed-off-by: Herbert Xu

hwrng: drivers - add missing Arm & Cavium MODULE_DESCRIPTION() macros

2024-06-21T12:04:16Z

With ARCH=arm64, make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/char/hw_random/cavium-rng.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/char/hw_random/cavium-rng-vf.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/char/hw_random/arm_smccc_trng.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson Signed-off-by: Herbert Xu