Niklas Schnelle 3322ba0d7b s390: make PCI mio support a machine flag ... 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>		2021-07-27 09:39:19 +02:00
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Makefile	…
pci.c	s390: make PCI mio support a machine flag	2021-07-27 09:39:19 +02:00
pci_bus.c	…
pci_bus.h	…
pci_clp.c	…
pci_debug.c	…
pci_dma.c	…
pci_event.c	…
pci_insn.c	…
pci_iov.c	…
pci_iov.h	…
pci_irq.c	…
pci_mmio.c	…
pci_sysfs.c	…