Merge branches 'iommu/fixes', 'arm/exynos', 'arm/renesas', 'arm/smmu',... (8d2932dd) · Commits · e / devices / android_kernel_xiaomi_nabu

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Documentation/ABI/testing/sysfs-devices-deferred_probe

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Original line number	Original line	Diff line number	Diff line
	What: /sys/devices/.../deferred_probe
	Date: August 2016
	Contact: Ben Hutchings <ben.hutchings@codethink.co.uk>
	Description:
	The /sys/devices/.../deferred_probe attribute is
	present for all devices. If a driver detects during
	probing a device that a related device is not yet
	ready, it may defer probing of the first device. The
	kernel will retry probing the first device after any
	other device is successfully probed. This attribute
	reads as 1 if probing of this device is currently
	deferred, or 0 otherwise.

Documentation/ABI/testing/sysfs-kernel-iommu_groups

+12 −0

Original line number	Original line	Diff line number	Diff line
	@@ -12,3 +12,15 @@ Description: /sys/kernel/iommu_groups/ contains a number of sub-
	file if the IOMMU driver has chosen to register a more		file if the IOMMU driver has chosen to register a more
	common name for the group.		common name for the group.
	Users:		Users:

			What: /sys/kernel/iommu_groups/reserved_regions
			Date: January 2017
			KernelVersion: v4.11
			Contact: Eric Auger <eric.auger@redhat.com>
			Description: /sys/kernel/iommu_groups/reserved_regions list IOVA
			regions that are reserved. Not necessarily all
			reserved regions are listed. This is typically used to
			output direct-mapped, MSI, non mappable regions. Each
			region is described on a single line: the 1st field is
			the base IOVA, the second is the end IOVA and the third
			field describes the type of the region.

Documentation/DMA-attributes.txt

+10 −0

Original line number	Original line	Diff line number	Diff line
	@@ -143,3 +143,13 @@ So, this provides a way for drivers to avoid those error messages on calls
	where allocation failures are not a problem, and shouldn't bother the logs.		where allocation failures are not a problem, and shouldn't bother the logs.

	NOTE: At the moment DMA_ATTR_NO_WARN is only implemented on PowerPC.		NOTE: At the moment DMA_ATTR_NO_WARN is only implemented on PowerPC.

			DMA_ATTR_PRIVILEGED
			------------------------------

			Some advanced peripherals such as remote processors and GPUs perform
			accesses to DMA buffers in both privileged "supervisor" and unprivileged
			"user" modes. This attribute is used to indicate to the DMA-mapping
			subsystem that the buffer is fully accessible at the elevated privilege
			level (and ideally inaccessible or at least read-only at the
			lesser-privileged levels).

Documentation/admin-guide/kernel-parameters.txt

+12 −1

Original line number	Original line	Diff line number	Diff line
	@@ -106,6 +106,16 @@
	use by PCI		use by PCI
	Format: <irq>,<irq>...		Format: <irq>,<irq>...

			acpi_mask_gpe= [HW,ACPI]
			Due to the existence of _Lxx/_Exx, some GPEs triggered
			by unsupported hardware/firmware features can result in
			GPE floodings that cannot be automatically disabled by
			the GPE dispatcher.
			This facility can be used to prevent such uncontrolled
			GPE floodings.
			Format: <int>
			Support masking of GPEs numbered from 0x00 to 0x7f.

	acpi_no_auto_serialize [HW,ACPI]		acpi_no_auto_serialize [HW,ACPI]
	Disable auto-serialization of AML methods		Disable auto-serialization of AML methods
	AML control methods that contain the opcodes to create		AML control methods that contain the opcodes to create
	@@ -3811,10 +3821,11 @@
	it if 0 is given (See Documentation/cgroup-v1/memory.txt)		it if 0 is given (See Documentation/cgroup-v1/memory.txt)

	swiotlb= [ARM,IA-64,PPC,MIPS,X86]		swiotlb= [ARM,IA-64,PPC,MIPS,X86]
	Format: { <int> \| force }		Format: { <int> \| force \| noforce }
	<int> -- Number of I/O TLB slabs		<int> -- Number of I/O TLB slabs
	force -- force using of bounce buffers even if they		force -- force using of bounce buffers even if they
	wouldn't be automatically used by the kernel		wouldn't be automatically used by the kernel
			noforce -- Never use bounce buffers (for debugging)

	switches= [HW,M68k]		switches= [HW,M68k]

Original line number	Original line	Diff line number	Diff line
	@@ -137,6 +137,7 @@ Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
	Rudolf Marek <R.Marek@sh.cvut.cz>		Rudolf Marek <R.Marek@sh.cvut.cz>
	Rui Saraiva <rmps@joel.ist.utl.pt>		Rui Saraiva <rmps@joel.ist.utl.pt>
	Sachin P Sant <ssant@in.ibm.com>		Sachin P Sant <ssant@in.ibm.com>
			Sarangdhar Joshi <spjoshi@codeaurora.org>
	Sam Ravnborg <sam@mars.ravnborg.org>		Sam Ravnborg <sam@mars.ravnborg.org>
	Santosh Shilimkar <ssantosh@kernel.org>		Santosh Shilimkar <ssantosh@kernel.org>
	Santosh Shilimkar <santosh.shilimkar@oracle.org>		Santosh Shilimkar <santosh.shilimkar@oracle.org>
	@@ -150,10 +151,13 @@ Shuah Khan <shuah@kernel.org> <shuah.kh@samsung.com>
	Simon Kelley <simon@thekelleys.org.uk>		Simon Kelley <simon@thekelleys.org.uk>
	Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>		Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>
	Stephen Hemminger <shemminger@osdl.org>		Stephen Hemminger <shemminger@osdl.org>
			Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
			Subhash Jadavani <subhashj@codeaurora.org>
	Sudeep Holla <sudeep.holla@arm.com> Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>		Sudeep Holla <sudeep.holla@arm.com> Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
	Sumit Semwal <sumit.semwal@ti.com>		Sumit Semwal <sumit.semwal@ti.com>
	Tejun Heo <htejun@gmail.com>		Tejun Heo <htejun@gmail.com>
	Thomas Graf <tgraf@suug.ch>		Thomas Graf <tgraf@suug.ch>
			Thomas Pedersen <twp@codeaurora.org>
	Tony Luck <tony.luck@intel.com>		Tony Luck <tony.luck@intel.com>
	Tsuneo Yoshioka <Tsuneo.Yoshioka@f-secure.com>		Tsuneo Yoshioka <Tsuneo.Yoshioka@f-secure.com>
	Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>		Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>