linux-stable/drivers/crypto/stm32/Kconfig
Nicolas Toromanoff bbf2cb1ea1 crypto: stm32/crc32 - Avoid lock if hardware is already used
If STM32 CRC device is already in use, calculate CRC by software.

This will release CPU constraint for a concurrent access to the
hardware, and avoid masking irqs during the whole block processing.

Fixes: 7795c0baf5 ("crypto: stm32/crc32 - protect from concurrent accesses")

Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-09-25 17:48:14 +10:00

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# SPDX-License-Identifier: GPL-2.0-only
config CRYPTO_DEV_STM32_CRC
tristate "Support for STM32 crc accelerators"
depends on ARCH_STM32
select CRYPTO_HASH
select CRC32
help
This enables support for the CRC32 hw accelerator which can be found
on STMicroelectronics STM32 SOC.
config CRYPTO_DEV_STM32_HASH
tristate "Support for STM32 hash accelerators"
depends on ARCH_STM32
depends on HAS_DMA
select CRYPTO_HASH
select CRYPTO_MD5
select CRYPTO_SHA1
select CRYPTO_SHA256
select CRYPTO_ENGINE
help
This enables support for the HASH hw accelerator which can be found
on STMicroelectronics STM32 SOC.
config CRYPTO_DEV_STM32_CRYP
tristate "Support for STM32 cryp accelerators"
depends on ARCH_STM32
select CRYPTO_HASH
select CRYPTO_ENGINE
select CRYPTO_LIB_DES
help
This enables support for the CRYP (AES/DES/TDES) hw accelerator which
can be found on STMicroelectronics STM32 SOC.