Andre Przywara 0888d04b47 hwrng: Add Arm SMCCC TRNG based driver ... The "Arm True Random Number Generator Firmware Interface"[1] provides an SMCCC based interface to a true hardware random number generator. So far we are using that in arch_get_random_seed(), but it might be useful to expose the entropy through the /dev/hwrng device as well. This allows to assess the quality of the implementation, by using "rngtest" from the rng-tools package, for example. Add a simple platform driver implementing the hw_random interface. The corresponding platform device is created by the SMCCC core code, we just match it here by name and provide a module alias. Since the firmware takes care about serialisation, this can happily coexist with the arch_get_random_seed() bits. [1] https://developer.arm.com/documentation/den0098/latest/ Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>		2021-08-06 19:45:26 +08:00
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amd-rng.c	hwrng: rename 'mod_init' & 'mod_exit' functions to be module-specific	2021-07-16 15:49:36 +08:00
arm_smccc_trng.c	hwrng: Add Arm SMCCC TRNG based driver	2021-08-06 19:45:26 +08:00
atmel-rng.c	hwrng: atmel - add new platform support for sam9x60	2019-11-15 13:44:17 +08:00
ba431-rng.c	hwrng: ba431 - use devm_platform_ioremap_resource() to simplify	2021-03-19 21:59:46 +11:00
bcm2835-rng.c	hwrng: bcm2835 - add reset support	2021-03-13 00:04:06 +11:00
cavium-rng-vf.c	hwrng: drivers - Use device-managed registration API	2019-08-02 14:44:33 +10:00
cavium-rng.c	hwrng: cavium - make two functions static	2018-03-09 22:45:34 +08:00
cctrng.c	hwrng: cctrng - delete redundant printing of return value	2021-03-19 21:59:47 +11:00
cctrng.h	hwrng: cctrng - introduce Arm CryptoCell driver	2020-04-16 16:49:20 +10:00
core.c	hwrng: core - Use DEVICE_ATTR_<RW|RO> macro	2021-05-28 15:11:45 +08:00
exynos-trng.c	hwrng: exynos - Use pm_runtime_resume_and_get() to replace open coding	2021-06-03 20:24:04 +08:00
geode-rng.c	hwrng: rename 'mod_init' & 'mod_exit' functions to be module-specific	2021-07-16 15:49:36 +08:00
hisi-rng.c	hwrng: hisi - Fix W=1 unused variable warning	2020-07-09 18:25:12 +10:00
imx-rngc.c	hwrng: imx-rngc - irq already prints an error	2020-11-06 14:31:15 +11:00
ingenic-rng.c	crypto: ingenic - Drop kfree for memory allocated with devm_kzalloc	2020-08-21 14:43:51 +10:00
ingenic-trng.c	hwrng: ingenic - Fix a resource leak in an error handling path	2021-01-03 08:41:37 +11:00
intel-rng.c	hwrng: rename 'mod_init' & 'mod_exit' functions to be module-specific	2021-07-16 15:49:36 +08:00
iproc-rng200.c	hwrng: iproc-rng200 - Move enable/disable in separate function	2021-01-03 08:41:37 +11:00
ixp4xx-rng.c	hw_random: ixp4xx: Add OF support	2021-06-17 15:31:05 +02:00
Kconfig	hwrng: Add Arm SMCCC TRNG based driver	2021-08-06 19:45:26 +08:00
ks-sa-rng.c	hwrng: ks-sa - Use pm_runtime_resume_and_get() to replace open coding	2021-06-03 20:24:04 +08:00
Makefile	hwrng: Add Arm SMCCC TRNG based driver	2021-08-06 19:45:26 +08:00
meson-rng.c	hwrng: meson - use devm_platform_ioremap_resource() to simplify code	2019-10-26 02:09:55 +11:00
mtk-rng.c	hwrng: mediatek - Use devm_platform_ioremap_resource() in mtk_rng_probe()	2019-10-05 01:06:18 +10:00
mxc-rnga.c	hwrng: mxc-rnga - use semicolons rather than commas to separate statements	2020-10-02 18:02:15 +10:00
n2-asm.S
n2-drv.c	hwrng: n2-drv - fix typo	2019-08-08 12:07:49 +10:00
n2rng.h
nomadik-rng.c	amba: Make the remove callback return void	2021-02-02 14:25:50 +01:00
npcm-rng.c	hwrng: npcm - modify readl to readb	2020-10-02 18:02:13 +10:00
octeon-rng.c	hwrng: octeon - Fix sparse warnings	2020-07-09 18:25:14 +10:00
omap-rng.c	hwrng: omap - Use pm_runtime_resume_and_get() to replace open coding	2021-06-03 20:24:04 +08:00
omap3-rom-rng.c	change email address for Pali Rohár	2020-04-10 15:36:22 -07:00
optee-rng.c	hwrng: optee - Use device-managed registration API	2021-02-10 17:55:58 +11:00
pasemi-rng.c	hwrng: pasemi - use devm_platform_ioremap_resource() to simplify code	2019-10-26 02:09:56 +11:00
pic32-rng.c	hwrng: pic32 - Use device-managed registration API	2021-03-13 00:04:00 +11:00
powernv-rng.c	hwrng: drivers - Use device-managed registration API	2019-08-02 14:44:33 +10:00
pseries-rng.c	char: hw_random: pseries-rng: Demote non-conformant kernel-doc header	2021-05-21 10:09:30 +02:00
s390-trng.c	s390/trng: set quality to 1024	2020-11-09 11:21:00 +01:00
st-rng.c	hwrng: st - Fix W=1 unused variable warning	2020-07-09 18:25:12 +10:00
stm32-rng.c	hwrng: stm32 - use semicolons rather than commas to separate statements	2020-10-02 18:02:14 +10:00
timeriomem-rng.c	hwrng: timeriomem - Use device-managed registration API	2021-02-10 17:56:01 +11:00
tx4939-rng.c	hwrng: tx4939 - use devm_platform_ioremap_resource() to simplify code	2019-10-26 02:09:57 +11:00
via-rng.c	hwrng: rename 'mod_init' & 'mod_exit' functions to be module-specific	2021-07-16 15:49:36 +08:00
virtio-rng.c	hwrng: virtio - Constify id_table[]	2020-07-09 18:25:21 +10:00
xgene-rng.c	hwrng: xgene - Delete an error message in xgene_rng_probe()	2020-04-16 16:49:22 +10:00
xiphera-trng.c	hwrng: xiphera-trng - use devm_platform_ioremap_resource() to simplify	2021-03-07 15:13:14 +11:00