Niklas Schnelle 973c57c5e6 s390: make PCI mio support a machine flag ... [ Upstream commit 3322ba0d7bea1e24ae464418626f6a15b69533ab ] Kernel support for the newer PCI mio instructions can be toggled off with the pci=nomio command line option which needs to integrate with common code PCI option parsing. However this option then toggles static branches which can't be toggled yet in an early_param() call. Thus commit 9964f396f1 ("s390: fix setting of mio addressing control") moved toggling the static branches to the PCI init routine. With this setup however we can't check for mio support outside the PCI code during early boot, i.e. before switching the static branches, which we need to be able to export this as an ELF HWCAP. Improve on this by turning mio availability into a machine flag that gets initially set based on CONFIG_PCI and the facility bit and gets toggled off if pci=nomio is found during PCI option parsing allowing simple access to this machine flag after early init. Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-09-18 13:40:22 +02:00
..
appldata
boot	s390/boot: fix use of expolines in the DMA code	2021-07-28 14:35:42 +02:00
configs	s390: update defconfigs	2020-11-12 12:10:36 +01:00
crypto	s390/archrandom: add parameter check for s390_arch_random_generate	2021-05-11 14:47:31 +02:00
hypfs
include	s390: make PCI mio support a machine flag	2021-09-18 13:40:22 +02:00
kernel	s390: make PCI mio support a machine flag	2021-09-18 13:40:22 +02:00
kvm	KVM: s390: index kvm->arch.idle_mask by vcpu_idx	2021-09-15 09:50:47 +02:00
lib	s390/test_unwind: fix CALL_ON_STACK tests	2020-12-30 11:53:56 +01:00
mm	s390/kasan: fix large PMD pages address alignment check	2021-09-15 09:50:27 +02:00
net	bpf: Introduce BPF nospec instruction for mitigating Spectre v4	2021-08-04 12:46:44 +02:00
oprofile
pci	s390: make PCI mio support a machine flag	2021-09-18 13:40:22 +02:00
purgatory	s390: disable SSP when needed	2021-07-20 16:05:42 +02:00
tools
Kbuild
Kconfig	s390: appldata depends on PROC_SYSCTL	2021-07-14 16:56:42 +02:00
Kconfig.debug
Makefile	s390: disable SSP when needed	2021-07-20 16:05:42 +02:00