mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b329669ea0
This patch supports Exynos SOC's PRNG driver. Exynos's PRNG has 5 seeds and 5 random number outputs. Module is excuted under runtime power management control, so it activates only while it's in use. Otherwise it will be suspended generally. It was tested on PQ board by rngtest program. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
278 lines
8.6 KiB
Plaintext
278 lines
8.6 KiB
Plaintext
#
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# Hardware Random Number Generator (RNG) configuration
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#
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config HW_RANDOM
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tristate "Hardware Random Number Generator Core support"
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default m
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---help---
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Hardware Random Number Generator Core infrastructure.
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To compile this driver as a module, choose M here: the
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module will be called rng-core. This provides a device
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that's usually called /dev/hw_random, and which exposes one
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of possibly several hardware random number generators.
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These hardware random number generators do not feed directly
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into the kernel's random number generator. That is usually
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handled by the "rngd" daemon. Documentation/hw_random.txt
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has more information.
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If unsure, say Y.
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config HW_RANDOM_TIMERIOMEM
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tristate "Timer IOMEM HW Random Number Generator support"
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depends on HW_RANDOM && HAS_IOMEM
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---help---
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This driver provides kernel-side support for a generic Random
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Number Generator used by reading a 'dumb' iomem address that
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is to be read no faster than, for example, once a second;
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the default FPGA bitstream on the TS-7800 has such functionality.
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To compile this driver as a module, choose M here: the
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module will be called timeriomem-rng.
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If unsure, say Y.
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config HW_RANDOM_INTEL
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tristate "Intel HW Random Number Generator support"
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depends on HW_RANDOM && (X86 || IA64) && PCI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Intel i8xx-based motherboards.
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To compile this driver as a module, choose M here: the
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module will be called intel-rng.
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If unsure, say Y.
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config HW_RANDOM_AMD
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tristate "AMD HW Random Number Generator support"
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depends on HW_RANDOM && (X86 || PPC_MAPLE) && PCI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on AMD 76x-based motherboards.
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To compile this driver as a module, choose M here: the
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module will be called amd-rng.
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If unsure, say Y.
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config HW_RANDOM_ATMEL
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tristate "Atmel Random Number Generator support"
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depends on HW_RANDOM && HAVE_CLK
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default (HW_RANDOM && ARCH_AT91)
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Atmel AT91 devices.
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To compile this driver as a module, choose M here: the
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module will be called atmel-rng.
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If unsure, say Y.
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config HW_RANDOM_GEODE
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tristate "AMD Geode HW Random Number Generator support"
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depends on HW_RANDOM && X86_32 && PCI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on the AMD Geode LX.
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To compile this driver as a module, choose M here: the
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module will be called geode-rng.
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If unsure, say Y.
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config HW_RANDOM_N2RNG
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tristate "Niagara2 Random Number Generator support"
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depends on HW_RANDOM && SPARC64
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Niagara2 cpus.
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To compile this driver as a module, choose M here: the
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module will be called n2-rng.
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If unsure, say Y.
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config HW_RANDOM_VIA
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tristate "VIA HW Random Number Generator support"
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depends on HW_RANDOM && X86
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on VIA based motherboards.
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To compile this driver as a module, choose M here: the
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module will be called via-rng.
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If unsure, say Y.
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config HW_RANDOM_IXP4XX
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tristate "Intel IXP4xx NPU HW Random Number Generator support"
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depends on HW_RANDOM && ARCH_IXP4XX
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random
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Number Generator hardware found on the Intel IXP4xx NPU.
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To compile this driver as a module, choose M here: the
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module will be called ixp4xx-rng.
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If unsure, say Y.
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config HW_RANDOM_OMAP
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tristate "OMAP Random Number Generator support"
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depends on HW_RANDOM && (ARCH_OMAP16XX || ARCH_OMAP2)
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on OMAP16xx and OMAP24xx multimedia
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processors.
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To compile this driver as a module, choose M here: the
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module will be called omap-rng.
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If unsure, say Y.
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config HW_RANDOM_OCTEON
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tristate "Octeon Random Number Generator support"
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depends on HW_RANDOM && CPU_CAVIUM_OCTEON
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Octeon processors.
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To compile this driver as a module, choose M here: the
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module will be called octeon-rng.
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If unsure, say Y.
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config HW_RANDOM_PASEMI
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tristate "PA Semi HW Random Number Generator support"
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depends on HW_RANDOM && PPC_PASEMI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on PA Semi PWRficient SoCs.
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To compile this driver as a module, choose M here: the
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module will be called pasemi-rng.
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If unsure, say Y.
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config HW_RANDOM_VIRTIO
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tristate "VirtIO Random Number Generator support"
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depends on HW_RANDOM && VIRTIO
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---help---
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This driver provides kernel-side support for the virtual Random Number
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Generator hardware.
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To compile this driver as a module, choose M here: the
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module will be called virtio-rng. If unsure, say N.
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config HW_RANDOM_TX4939
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tristate "TX4939 Random Number Generator support"
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depends on HW_RANDOM && SOC_TX4939
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on TX4939 SoC.
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To compile this driver as a module, choose M here: the
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module will be called tx4939-rng.
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If unsure, say Y.
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config HW_RANDOM_MXC_RNGA
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tristate "Freescale i.MX RNGA Random Number Generator"
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depends on HW_RANDOM && ARCH_HAS_RNGA
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Freescale i.MX processors.
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To compile this driver as a module, choose M here: the
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module will be called mxc-rnga.
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If unsure, say Y.
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config HW_RANDOM_NOMADIK
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tristate "ST-Ericsson Nomadik Random Number Generator support"
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depends on HW_RANDOM && PLAT_NOMADIK
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
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To compile this driver as a module, choose M here: the
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module will be called nomadik-rng.
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If unsure, say Y.
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config HW_RANDOM_PICOXCELL
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tristate "Picochip picoXcell true random number generator support"
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depends on HW_RANDOM && ARCH_PICOXCELL && PICOXCELL_PC3X3
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Picochip PC3x3 and later devices.
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To compile this driver as a module, choose M here: the
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module will be called picoxcell-rng.
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If unsure, say Y.
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config HW_RANDOM_PPC4XX
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tristate "PowerPC 4xx generic true random number generator support"
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depends on HW_RANDOM && PPC && 4xx
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---help---
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This driver provides the kernel-side support for the TRNG hardware
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found in the security function of some PowerPC 4xx SoCs.
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To compile this driver as a module, choose M here: the
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module will be called ppc4xx-rng.
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If unsure, say N.
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config UML_RANDOM
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depends on UML
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tristate "Hardware random number generator"
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help
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This option enables UML's "hardware" random number generator. It
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attaches itself to the host's /dev/random, supplying as much entropy
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as the host has, rather than the small amount the UML gets from its
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own drivers. It registers itself as a standard hardware random number
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generator, major 10, minor 183, and the canonical device name is
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/dev/hwrng.
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The way to make use of this is to install the rng-tools package
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(check your distro, or download from
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http://sourceforge.net/projects/gkernel/). rngd periodically reads
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/dev/hwrng and injects the entropy into /dev/random.
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config HW_RANDOM_PSERIES
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tristate "pSeries HW Random Number Generator support"
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depends on HW_RANDOM && PPC64 && IBMVIO
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on POWER7+ machines and above
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To compile this driver as a module, choose M here: the
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module will be called pseries-rng.
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If unsure, say Y.
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config HW_RANDOM_EXYNOS
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tristate "EXYNOS HW random number generator support"
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depends on HW_RANDOM && HAS_IOMEM && HAVE_CLK
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on EXYNOS SOCs.
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To compile this driver as a module, choose M here: the
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module will be called exynos-rng.
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If unsure, say Y.
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