14 Oct, 2020
35 commits
-
i915 does not want to see value entries. Switch it to use
find_lock_page() instead, and remove the export of find_lock_entry().
Move find_lock_entry() and find_get_entry() to mm/internal.h to discourage
any future use.Signed-off-by: Matthew Wilcox (Oracle)
Signed-off-by: Andrew Morton
Acked-by: Johannes Weiner
Cc: Alexey Dobriyan
Cc: Chris Wilson
Cc: Huang Ying
Cc: Hugh Dickins
Cc: Jani Nikula
Cc: Matthew Auld
Cc: William Kucharski
Link: https://lkml.kernel.org/r/20200910183318.20139-6-willy@infradead.org
Signed-off-by: Linus Torvalds -
Add a sysfs attribute which denotes a range from the dax region to be
allocated. It's an write only @mapping sysfs attribute in the format of
'-' to allocate a range. @start and @end use hexadecimal
values and the @pgoff is implicitly ordered wrt to previous writes to
@mapping sysfs e.g. a write of a range of length 1G the pgoff is
0..1G(-4K), a second write will use @pgoff for 1G+4K...This range mapping interface is useful for:
1) Application which want to implement its own allocation logic, and
thus pick the desired ranges from dax_region.2) For use cases like VMM fast restart[0] where after kexec we want
to the same gpaphys mappings (as originally created before kexec).[0] https://static.sched.com/hosted_files/kvmforum2019/66/VMM-fast-restart_kvmforum2019.pdf
Signed-off-by: Joao Martins
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Jia He
Cc: Jonathan Cameron
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643106970.4062302.10402616567780784722.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lore.kernel.org/r/20200716172913.19658-5-joao.m.martins@oracle.com
Link: https://lkml.kernel.org/r/160106119570.30709.4548889722645210610.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Introduce a new module parameter for dax_hmem which initializes all region
devices as free, rather than allocating a pagemap for the region by
default.All hmem devices created with dax_hmem.region_idle=1 will have full
available size for creating dynamic dax devices.Signed-off-by: Joao Martins
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Jia He
Cc: Jonathan Cameron
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643106460.4062302.5868522341307530091.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lore.kernel.org/r/20200716172913.19658-4-joao.m.martins@oracle.com
Link: https://lkml.kernel.org/r/160106119033.30709.11249962152222193448.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Introduce a device align attribute. While doing so, rename the region
align attribute to be more explicitly named as so, but keep it named as
@align to retain the API for tools like daxctl.Changes on align may not always be valid, when say certain mappings were
created with 2M and then we switch to 1G. So, we validate all ranges
against the new value being attempted, post resizing.Signed-off-by: Joao Martins
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Jia He
Cc: Jonathan Cameron
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643105944.4062302.3131761052969132784.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lore.kernel.org/r/20200716172913.19658-3-joao.m.martins@oracle.com
Link: https://lkml.kernel.org/r/160106118486.30709.13012322227204800596.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Introduce @align to struct dev_dax.
When creating a new device, we still initialize to the default dax_region
@align. Child devices belonging to a region may wish to keep a different
alignment property instead of a global region-defined one.Signed-off-by: Joao Martins
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Jia He
Cc: Jonathan Cameron
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643105377.4062302.4159447829955683131.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lore.kernel.org/r/20200716172913.19658-2-joao.m.martins@oracle.com
Link: https://lkml.kernel.org/r/160106117957.30709.1142303024324655705.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
In support of interrogating the physical address layout of a device with
dis-contiguous ranges, introduce a sysfs directory with 'start', 'end',
and 'page_offset' attributes. The alternative is trying to parse
/proc/iomem, and that file will not reflect the extent layout until the
device is enabled.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Joao Martins
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Jia He
Cc: Jonathan Cameron
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643104819.4062302.13691281391423291589.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/160106117446.30709.2751020815463722537.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Break the requirement that device-dax instances are physically contiguous.
With this constraint removed it allows fragmented available capacity to
be fully allocated.This capability is useful to mitigate the "noisy neighbor" problem with
memory-side-cache management for virtual machines, or any other scenario
where a platform address boundary also designates a performance boundary.
For example a direct mapped memory side cache might rotate cache colors at
1GB boundaries. With dis-contiguous allocations a device-dax instance
could be configured to contain only 1 cache color.It also satisfies Joao's use case (see link) for partitioning memory for
exclusive guest access. It allows for a future potential mode where the
host kernel need not allocate 'struct page' capacity up-front.Reported-by: Joao Martins
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Jia He
Cc: Jonathan Cameron
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lore.kernel.org/lkml/20200110190313.17144-1-joao.m.martins@oracle.com/
Link: https://lkml.kernel.org/r/159643104304.4062302.16561669534797528660.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/160106116875.30709.11456649969327399771.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
In support of device-dax growing the ability to front physically
dis-contiguous ranges of memory, update devm_memremap_pages() to track
multiple ranges with a single reference counter and devm instance.Convert all [devm_]memremap_pages() users to specify the number of ranges
they are mapping in their 'struct dev_pagemap' instance.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Vishal Verma
Cc: Vivek Goyal
Cc: Dave Jiang
Cc: Ben Skeggs
Cc: David Airlie
Cc: Daniel Vetter
Cc: Ira Weiny
Cc: Bjorn Helgaas
Cc: Boris Ostrovsky
Cc: Juergen Gross
Cc: Stefano Stabellini
Cc: "Jérôme Glisse"
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Borislav Petkov
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Dave Hansen
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: kernel test robot
Cc: Mike Rapoport
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643103789.4062302.18426128170217903785.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/160106116293.30709.13350662794915396198.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
The 'struct resource' in 'struct dev_pagemap' is only used for holding
resource span information. The other fields, 'name', 'flags', 'desc',
'parent', 'sibling', and 'child' are all unused wasted space.This is in preparation for introducing a multi-range extension of
devm_memremap_pages().The bulk of this change is unwinding all the places internal to libnvdimm
that used 'struct resource' unnecessarily, and replacing instances of
'struct dev_pagemap'.res with 'struct dev_pagemap'.range.P2PDMA had a minor usage of the resource flags field, but only to report
failures with "%pR". That is replaced with an open coded print of the
range.[dan.carpenter@oracle.com: mm/hmm/test: use after free in dmirror_allocate_chunk()]
Link: https://lkml.kernel.org/r/20200926121402.GA7467@kadamSigned-off-by: Dan Williams
Signed-off-by: Dan Carpenter
Signed-off-by: Andrew Morton
Reviewed-by: Boris Ostrovsky [xen]
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Vishal Verma
Cc: Vivek Goyal
Cc: Dave Jiang
Cc: Ben Skeggs
Cc: David Airlie
Cc: Daniel Vetter
Cc: Ira Weiny
Cc: Bjorn Helgaas
Cc: Juergen Gross
Cc: Stefano Stabellini
Cc: "Jérôme Glisse"
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Borislav Petkov
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Dave Hansen
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: kernel test robot
Cc: Mike Rapoport
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643103173.4062302.768998885691711532.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/160106115761.30709.13539840236873663620.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Make the device-dax 'size' attribute writable to allow capacity to be
split between multiple instances in a region. The intended consumers of
this capability are users that want to split a scarce memory resource
between device-dax and System-RAM access, or users that want to have
multiple security domains for a large region.By default the hmem instance provider allocates an entire region to the
first instance. The process of creating a new instance (assuming a
region-id of 0) is find the region and trigger the 'create' attribute
which yields an empty instance to configure. For example:cd /sys/bus/dax/devices
echo dax0.0 > dax0.0/driver/unbind
echo $new_size > dax0.0/size
echo 1 > $(readlink -f dax0.0)../dax_region/create
seed=$(cat $(readlink -f dax0.0)../dax_region/seed)
echo $new_size > $seed/size
echo dax0.0 > ../drivers/{device_dax,kmem}/bind
echo dax0.1 > ../drivers/{device_dax,kmem}/bindInstances can be destroyed by:
echo $device > $(readlink -f $device)../dax_region/delete
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Vishal Verma
Cc: Brice Goglin
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Hildenbrand
Cc: Ira Weiny
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: David Airlie
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643102625.4062302.7431838945566033852.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/160106115239.30709.9850106928133493138.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Use sysfs_streq() in device_find_child_by_name() to allow it to use a
sysfs input string that might contain a trailing newline.The other "device by name" interfaces,
{bus,driver,class}_find_device_by_name(), already account for sysfs
strings.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Reviewed-by: Greg Kroah-Hartman
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643102106.4062302.12229802117645312104.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/160106114576.30709.2960091665444712180.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Add a seed device concept for dynamic dax regions to be able to split the
region amongst multiple sub-instances. The seed device, similar to
libnvdimm seed devices, is a device that starts with zero capacity
allocated and unbound to a driver. In contrast to libnvdimm seed devices
explicit 'create' and 'delete' interfaces are added to the region to
trigger seeds to be created and unused devices to be reclaimed. The
explicit create and delete replaces implicit create as a side effect of
probe and implicit delete when writing 0 to the size that libnvdimm
implements.Delete can be performed on any 0-sized and idle device. This avoids the
gymnastics of needing to move device_unregister() to its own async
context. Specifically, it avoids the deadlock of deleting a device via
one of its own attributes. It is also less surprising to userspace which
never sees an extra device it did not request.For now just add the device creation, teardown, and ->probe() prevention.
A later patch will arrange for the 'dax/size' attribute to be writable to
allocate capacity from the region.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Vishal Verma
Cc: Brice Goglin
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Hildenbrand
Cc: Ira Weiny
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: David Airlie
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643101583.4062302.12255093902950754962.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/160106113873.30709.15168756050631539431.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
In preparation for introducing seed devices the dax-bus core needs to be
able to intercept ->probe() and ->remove() operations. Towards that end
arrange for the bus and drivers to switch from raw 'struct device' driver
operations to 'struct dev_dax' typed operations.Reported-by: Hulk Robot
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Jason Yan
Cc: Vishal Verma
Cc: Brice Goglin
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Hildenbrand
Cc: Ira Weiny
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: David Airlie
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/160106113357.30709.4541750544799737855.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
In preparation for a facility that enables dax regions to be sub-divided,
introduce infrastructure to track and allocate region capacity.The new dax_region/available_size attribute is only enabled for volatile
hmem devices, not pmem devices that are defined by nvdimm namespace
boundaries. This is per Jeff's feedback the last time dynamic device-dax
capacity allocation support was discussed.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Vishal Verma
Cc: Brice Goglin
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Hildenbrand
Cc: Ira Weiny
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: David Airlie
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lore.kernel.org/linux-nvdimm/x49shpp3zn8.fsf@segfault.boston.devel.redhat.com
Link: https://lkml.kernel.org/r/159643101035.4062302.6785857915652647857.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/160106112801.30709.14601438735305335071.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Towards removing the mode specific @dax_kmem_res attribute from the
generic 'struct dev_dax', and preparing for multi-range support, change
the kmem driver to use the idiomatic release_mem_region() to pair with the
initial request_mem_region(). This also eliminates the need to open code
the release of the resource allocated by request_mem_region().As there are no more dax_kmem_res users, delete this struct member.
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: David Hildenbrand
Cc: Vishal Verma
Cc: Dave Hansen
Cc: Pavel Tatashin
Cc: Brice Goglin
Cc: Dave Jiang
Cc: Ira Weiny
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: David Airlie
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/160106112239.30709.15909567572288425294.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Towards removing the mode specific @dax_kmem_res attribute from the
generic 'struct dev_dax', and preparing for multi-range support, move
resource name tracking to driver data. The memory for the resource name
needs to have its own lifetime separate from the device bind lifetime for
cases where the driver is unbound, but the kmem range could not be
unplugged from the page allocator.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: David Hildenbrand
Cc: Vishal Verma
Cc: Dave Hansen
Cc: Pavel Tatashin
Cc: Brice Goglin
Cc: Dave Jiang
Cc: Ira Weiny
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: David Airlie
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/160106111639.30709.17624822766862009183.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Towards removing the mode specific @dax_kmem_res attribute from the
generic 'struct dev_dax', and preparing for multi-range support, teach the
driver to calculate the hotplug range from the device range. The hotplug
range is the trivially calculated memory-block-size aligned version of the
device range.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: David Hildenbrand
Cc: Vishal Verma
Cc: Dave Hansen
Cc: Pavel Tatashin
Cc: Brice Goglin
Cc: Dave Jiang
Cc: Ira Weiny
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: David Airlie
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/160106111109.30709.3173462396758431559.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
The passed in dev_pagemap is only required in the pmem case as the
libnvdimm core may have reserved a vmem_altmap for dev_memremap_pages() to
place the memmap in pmem directly. In the hmem case there is no agent
reserving an altmap so it can all be handled by a core internal default.Pass the resource range via a new @range property of 'struct
dev_dax_data'.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: David Hildenbrand
Cc: Vishal Verma
Cc: Dave Hansen
Cc: Pavel Tatashin
Cc: Brice Goglin
Cc: Dave Jiang
Cc: Ira Weiny
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Boris Ostrovsky
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: David Airlie
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Hulk Robot
Cc: Ingo Molnar
Cc: Jason Gunthorpe
Cc: Jason Yan
Cc: Jeff Moyer
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vivek Goyal
Cc: Wei Yang
Cc: Will Deacon
Link: https://lkml.kernel.org/r/159643099958.4062302.10379230791041872886.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/160106110513.30709.4303239334850606031.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
In preparation for adding more parameters to instance creation, move
existing parameters to a new struct.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Vishal Verma
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Borislav Petkov
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jeff Moyer
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Wei Yang
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Bjorn Helgaas
Cc: Boris Ostrovsky
Cc: Hulk Robot
Cc: Jason Yan
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Vivek Goyal
Link: https://lkml.kernel.org/r/159643099411.4062302.1337305960720423895.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
All callers specify the same flags to alloc_dax_region(), so there is no
need to allow for anything other than PFN_DEV|PFN_MAP, or carry a
->pfn_flags around on the region. Device-dax instances are always page
backed.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Vishal Verma
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Borislav Petkov
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jeff Moyer
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: "Rafael J. Wysocki"
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Wei Yang
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Bjorn Helgaas
Cc: Boris Ostrovsky
Cc: Hulk Robot
Cc: Jason Yan
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Vivek Goyal
Link: https://lkml.kernel.org/r/159643098829.4062302.13611520567669439046.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
The hmem enabling in commit cf8741ac57ed ("ACPI: NUMA: HMAT: Register
"soft reserved" memory as an "hmem" device") only registered ranges to the
hmem driver for each soft-reservation that also appeared in the HMAT.
While this is meant to encourage platform firmware to "do the right thing"
and publish an HMAT, the corollary is that platforms that fail to publish
an accurate HMAT will strand memory from Linux usage. Additionally, the
"efi_fake_mem" kernel command line option enabling will strand memory by
default without an HMAT.Arrange for "soft reserved" memory that goes unclaimed by HMAT entries to
be published as raw resource ranges for the hmem driver to consume.Include a module parameter to disable either this fallback behavior, or
the hmat enabling from creating hmem devices. The module parameter
requires the hmem device enabling to have unique name in the module
namespace: "device_hmem".The driver depends on the architecture providing phys_to_target_node()
which is only x86 via numa_meminfo() and arm64 via a generic memblock
implementation.[joao.m.martins@oracle.com: require NUMA_KEEP_MEMINFO for phys_to_target_node()]
Link: https://lkml.kernel.org/r/aaae71a7-4846-f5cc-5acf-cf05fdb1f2dc@oracle.comSigned-off-by: Dan Williams
Signed-off-by: Joao Martins
Signed-off-by: Andrew Morton
Reviewed-by: Joao Martins
Cc: Jonathan Cameron
Cc: Brice Goglin
Cc: Jeff Moyer
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Borislav Petkov
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jia He
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: Rafael J. Wysocki
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Wei Yang
Cc: Ard Biesheuvel
Cc: Bjorn Helgaas
Cc: Boris Ostrovsky
Cc: Hulk Robot
Cc: Jason Yan
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Vivek Goyal
Link: https://lkml.kernel.org/r/159643098298.4062302.17587338161136144730.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
In preparation for exposing "Soft Reserved" memory ranges without an HMAT,
move the hmem device registration to its own compilation unit and make the
implementation generic.The generic implementation drops usage acpi_map_pxm_to_online_node() that
was translating ACPI proximity domain values and instead relies on
numa_map_to_online_node() to determine the numa node for the device.[joao.m.martins@oracle.com: CONFIG_DEV_DAX_HMEM_DEVICES should depend on CONFIG_DAX=y]
Link: https://lkml.kernel.org/r/8f34727f-ec2d-9395-cb18-969ec8a5d0d4@oracle.comSigned-off-by: Dan Williams
Signed-off-by: Joao Martins
Signed-off-by: Andrew Morton
Cc: Andy Lutomirski
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Borislav Petkov
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jeff Moyer
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: Rafael J. Wysocki
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Wei Yang
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Bjorn Helgaas
Cc: Boris Ostrovsky
Cc: Hulk Robot
Cc: Jason Yan
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Vivek Goyal
Link: https://lkml.kernel.org/r/159643096584.4062302.5035370788475153738.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lore.kernel.org/r/158318761484.2216124.2049322072599482736.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
In preparation for attaching a platform device per iomem resource teach
the efi_fake_mem code to create an e820 entry per instance. Similar to
E820_TYPE_PRAM, bypass merging resource when the e820 map is sanitized.Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Acked-by: Ard Biesheuvel
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: Borislav Petkov
Cc: "H. Peter Anvin"
Cc: Andy Lutomirski
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jeff Moyer
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: Rafael J. Wysocki
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Wei Yang
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Bjorn Helgaas
Cc: Boris Ostrovsky
Cc: Hulk Robot
Cc: Jason Yan
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Vivek Goyal
Link: https://lkml.kernel.org/r/159643096068.4062302.11590041070221681669.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Disable parsing of the HMAT for debug, to workaround broken platform
instances, or cases where it is otherwise not wanted.[rdunlap@infradead.org: fix build when CONFIG_ACPI is not set]
Link: https://lkml.kernel.org/r/70e5ee34-9809-a997-7b49-499e4be61307@infradead.orgSigned-off-by: Dan Williams
Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Cc: Dave Hansen
Cc: Andy Lutomirski
Cc: Peter Zijlstra
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: Borislav Petkov
Cc: "H. Peter Anvin"
Cc: Ard Biesheuvel
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jeff Moyer
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: "Rafael J. Wysocki"
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Wei Yang
Cc: Will Deacon
Cc: Bjorn Helgaas
Cc: Boris Ostrovsky
Cc: Hulk Robot
Cc: Jason Yan
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Vivek Goyal
Link: https://lkml.kernel.org/r/159643095540.4062302.732962081968036212.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Patch series "device-dax: Support sub-dividing soft-reserved ranges", v5.
The device-dax facility allows an address range to be directly mapped
through a chardev, or optionally hotplugged to the core kernel page
allocator as System-RAM. It is the mechanism for converting persistent
memory (pmem) to be used as another volatile memory pool i.e. the current
Memory Tiering hot topic on linux-mm.In the case of pmem the nvdimm-namespace-label mechanism can sub-divide
it, but that labeling mechanism is not available / applicable to
soft-reserved ("EFI specific purpose") memory [3]. This series provides a
sysfs-mechanism for the daxctl utility to enable provisioning of
volatile-soft-reserved memory ranges.The motivations for this facility are:
1/ Allow performance differentiated memory ranges to be split between
kernel-managed and directly-accessed use cases.2/ Allow physical memory to be provisioned along performance relevant
address boundaries. For example, divide a memory-side cache [4] along
cache-color boundaries.3/ Parcel out soft-reserved memory to VMs using device-dax as a security
/ permissions boundary [5]. Specifically I have seen people (ab)using
memmap=nn!ss (mark System-RAM as Persistent Memory) just to get the
device-dax interface on custom address ranges. A follow-on for the VM
use case is to teach device-dax to dynamically allocate 'struct page' at
runtime to reduce the duplication of 'struct page' space in both the
guest and the host kernel for the same physical pages.[2]: http://lore.kernel.org/r/20200713160837.13774-11-joao.m.martins@oracle.com
[3]: http://lore.kernel.org/r/157309097008.1579826.12818463304589384434.stgit@dwillia2-desk3.amr.corp.intel.com
[4]: http://lore.kernel.org/r/154899811738.3165233.12325692939590944259.stgit@dwillia2-desk3.amr.corp.intel.com
[5]: http://lore.kernel.org/r/20200110190313.17144-1-joao.m.martins@oracle.comThis patch (of 23):
In preparation for adding a new numa= option clean up the existing ones to
avoid ifdefs in numa_setup(), and provide feedback when the option is
numa=fake= option is invalid due to kernel config. The same does not need
to be done for numa=noacpi, since the capability is already hard disabled
at compile-time.Suggested-by: Rafael J. Wysocki
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Benjamin Herrenschmidt
Cc: Ben Skeggs
Cc: Borislav Petkov
Cc: Brice Goglin
Cc: Catalin Marinas
Cc: Daniel Vetter
Cc: Dave Hansen
Cc: Dave Jiang
Cc: David Airlie
Cc: David Hildenbrand
Cc: Greg Kroah-Hartman
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Ira Weiny
Cc: Jason Gunthorpe
Cc: Jeff Moyer
Cc: Jia He
Cc: Joao Martins
Cc: Jonathan Cameron
Cc: Michael Ellerman
Cc: Mike Rapoport
Cc: Paul Mackerras
Cc: Pavel Tatashin
Cc: Peter Zijlstra
Cc: Rafael J. Wysocki
Cc: Thomas Gleixner
Cc: Tom Lendacky
Cc: Vishal Verma
Cc: Wei Yang
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Bjorn Helgaas
Cc: Boris Ostrovsky
Cc: Hulk Robot
Cc: Jason Yan
Cc: "Jérôme Glisse"
Cc: Juergen Gross
Cc: kernel test robot
Cc: Randy Dunlap
Cc: Stefano Stabellini
Cc: Vivek Goyal
Link: https://lkml.kernel.org/r/160106109960.30709.7379926726669669398.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/159643094279.4062302.17779410714418721328.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/159643094925.4062302.14979872973043772305.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds -
Pull block driver updates from Jens Axboe:
"Here are the driver updates for 5.10.A few SCSI updates in here too, in coordination with Martin as they
depend on core block changes for the shared tag bitmap.This contains:
- NVMe pull requests via Christoph:
- fix keep alive timer modification (Amit Engel)
- order the PCI ID list more sensibly (Andy Shevchenko)
- cleanup the open by controller helper (Chaitanya Kulkarni)
- use an xarray for the CSE log lookup (Chaitanya Kulkarni)
- support ZNS in nvmet passthrough mode (Chaitanya Kulkarni)
- fix nvme_ns_report_zones (Christoph Hellwig)
- add a sanity check to nvmet-fc (James Smart)
- fix interrupt allocation when too many polled queues are
specified (Jeffle Xu)
- small nvmet-tcp optimization (Mark Wunderlich)
- fix a controller refcount leak on init failure (Chaitanya
Kulkarni)
- misc cleanups (Chaitanya Kulkarni)
- major refactoring of the scanning code (Christoph Hellwig)- MD updates via Song:
- Bug fixes in bitmap code, from Zhao Heming
- Fix a work queue check, from Guoqing Jiang
- Fix raid5 oops with reshape, from Song Liu
- Clean up unused code, from Jason Yan
- Discard improvements, from Xiao Ni
- raid5/6 page offset support, from Yufen Yu- Shared tag bitmap for SCSI/hisi_sas/null_blk (John, Kashyap,
Hannes)- null_blk open/active zone limit support (Niklas)
- Set of bcache updates (Coly, Dongsheng, Qinglang)"
* tag 'drivers-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (78 commits)
md/raid5: fix oops during stripe resizing
md/bitmap: fix memory leak of temporary bitmap
md: fix the checking of wrong work queue
md/bitmap: md_bitmap_get_counter returns wrong blocks
md/bitmap: md_bitmap_read_sb uses wrong bitmap blocks
md/raid0: remove unused function is_io_in_chunk_boundary()
nvme-core: remove extra condition for vwc
nvme-core: remove extra variable
nvme: remove nvme_identify_ns_list
nvme: refactor nvme_validate_ns
nvme: move nvme_validate_ns
nvme: query namespace identifiers before adding the namespace
nvme: revalidate zone bitmaps in nvme_update_ns_info
nvme: remove nvme_update_formats
nvme: update the known admin effects
nvme: set the queue limits in nvme_update_ns_info
nvme: remove the 0 lba_shift check in nvme_update_ns_info
nvme: clean up the check for too large logic block sizes
nvme: freeze the queue over ->lba_shift updates
nvme: factor out a nvme_configure_metadata helper
... -
Pull libata updates from Jens Axboe:
"Nothing major in here, just fixes or improvements collected over the
last few months"* tag 'libata-5.10-2020-10-12' of git://git.kernel.dk/linux-block:
ata: ahci: mvebu: Make SATA PHY optional for Armada 3720
MAINTAINERS: remove LIBATA PATA DRIVERS entry
pata_cmd64x: Use fallthrough pseudo-keyword
ahci: qoriq: enable acpi support in qoriq ahci driver
sata, highbank: simplify the return expression of ahci_highbank_suspend
ahci: Add Intel Rocket Lake PCH-H RAID PCI IDs -
Pull block updates from Jens Axboe:
- Series of merge handling cleanups (Baolin, Christoph)
- Series of blk-throttle fixes and cleanups (Baolin)
- Series cleaning up BDI, seperating the block device from the
backing_dev_info (Christoph)- Removal of bdget() as a generic API (Christoph)
- Removal of blkdev_get() as a generic API (Christoph)
- Cleanup of is-partition checks (Christoph)
- Series reworking disk revalidation (Christoph)
- Series cleaning up bio flags (Christoph)
- bio crypt fixes (Eric)
- IO stats inflight tweak (Gabriel)
- blk-mq tags fixes (Hannes)
- Buffer invalidation fixes (Jan)
- Allow soft limits for zone append (Johannes)
- Shared tag set improvements (John, Kashyap)
- Allow IOPRIO_CLASS_RT for CAP_SYS_NICE (Khazhismel)
- DM no-wait support (Mike, Konstantin)
- Request allocation improvements (Ming)
- Allow md/dm/bcache to use IO stat helpers (Song)
- Series improving blk-iocost (Tejun)
- Various cleanups (Geert, Damien, Danny, Julia, Tetsuo, Tian, Wang,
Xianting, Yang, Yufen, yangerkun)* tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (191 commits)
block: fix uapi blkzoned.h comments
blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
blk-mq: get rid of the dead flush handle code path
block: get rid of unnecessary local variable
block: fix comment and add lockdep assert
blk-mq: use helper function to test hw stopped
block: use helper function to test queue register
block: remove redundant mq check
block: invoke blk_mq_exit_sched no matter whether have .exit_sched
percpu_ref: don't refer to ref->data if it isn't allocated
block: ratelimit handle_bad_sector() message
blk-throttle: Re-use the throtl_set_slice_end()
blk-throttle: Open code __throtl_de/enqueue_tg()
blk-throttle: Move service tree validation out of the throtl_rb_first()
blk-throttle: Move the list operation after list validation
blk-throttle: Fix IO hang for a corner case
blk-throttle: Avoid tracking latency if low limit is invalid
blk-throttle: Avoid getting the current time if tg->last_finish_time is 0
blk-throttle: Remove a meaningless parameter for throtl_downgrade_state()
block: Remove redundant 'return' statement
... -
Pull hwmon updates from Guenter Roeck:
"New driver and chip support:
- Moortec MR75203 PVT controller
- MPS Multi-phase mp2975 controller
- ADM1266
- Zen3 CPUs
- Intel MAX 10 BMCEnhancements:
- Support for rated attributes in hwmon core
- MAX20730:
- Device monitoring via debugfs
- VOUT readin adjustment vie devicetree bindings
- LM75:
- Devicetree support
- Regulator support
- Improved accumulationm logic in amd_energy driver
- Added fan sensor to gsc-hwmon driver
- Support for simplified I2C probingVarious other minor fixes and improvements"
* tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (64 commits)
hwmon: (pmbus/max20730) adjust the vout reading given voltage divider
dt-bindings: hwmon: max20730: adding device tree doc for max20730
hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller
hwmon: Add DT bindings schema for PVT controller
dt-bindings: hwmon: Add the +vs supply to the lm75 bindings
dt-bindings: hwmon: Convert lm75 bindings to yaml
docs: hwmon: (ltc2945) update datasheet link
hwmon: (mlxreg-fan) Fix double "Mellanox"
hwmon: (pmbus/max20730) add device monitoring via debugfs
hwmon: (pmbus/max34440) Fix OC fault limits
hwmon: (bt1-pvt) Wait for the completion with timeout
hwmon: (bt1-pvt) Cache current update timeout
hwmon: (bt1-pvt) Test sensor power supply on probe
hwmon: (lm75) Add regulator support
hwmon: Add hwmon driver for Intel MAX 10 BMC
dt-bindings: Add MP2975 voltage regulator device
hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller
hwmon: (tmp513) fix spelling typo in comments
hwmon: (amd_energy) Update driver documentation
hwmon: (amd_energy) Improve the accumulation logic
... -
Pull GPIO updates from Linus Walleij:
"This time very little driver changes but lots of core changes.We have some interesting cooperative work for ARM and Intel alike,
making the GPIO subsystem more and more suitable for industrial
systems and the like, in addition to the in-kernel users.We touch driver core (device properties) and lib/* by adding one
simple string array free function, these are authored by Andy
Shevchenko who is a well known and recognized core helpers maintainers
so this should be fine.We also see some Android GKI-related modularization in the MXC
drivers.Core changes:
- The big core change is the updated (v2) userspace character device
API.This corrects badly designed 64-bit alignment around the line
events. We also add the debounce request feature. This echoes the
often quotes passage from Frederick Brooks "The mythical man-month"
to always throw one away, which we have seen before in things such
as V4L2. So we put in a new one and deprecate and obsolete the old
one.- All example tools in tools/gpio/* are migrated to the new API to
set a good example. The libgpiod userspace library has been
augmented to use this new API pretty much from day 1.- Some misc API hardening by using strn* function calls has been
added as well.- Use the simpler IDA interface for GPIO chip instance enumeration.
- Add device core function for counting string arrays in device
properties.- Provide a generic library function kfree_strarray() that can be
used throughout the kernel.Driver enhancements:
- The DesignWare dwapb-gpio driver has been enhanced and now uses the
IRQ handling in the gpiolib core.- The mockup and aggregator drivers have seen some substantial code
clean-up and now use more of the core kernel inftrastructure.- Misc cleanups using dev_err_probe().
- The MXC drivers (Freescale/NXP) can now be built modularized, which
makes modularized GKI Android kernels happy"* tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (73 commits)
gpiolib: Update header block in gpiolib-cdev.h
gpiolib: cdev: switch from kstrdup() to kstrndup()
docs: gpio: add a new document to its index.rst
gpio: pca953x: Add support for the NXP PCAL9554B/C
tools: gpio: add debounce support to gpio-event-mon
tools: gpio: add multi-line monitoring to gpio-event-mon
tools: gpio: port gpio-event-mon to v2 uAPI
tools: gpio: port gpio-hammer to v2 uAPI
tools: gpio: rename nlines to num_lines
tools: gpio: port gpio-watch to v2 uAPI
tools: gpio: port lsgpio to v2 uAPI
gpio: uapi: document uAPI v1 as deprecated
gpiolib: cdev: support setting debounce
gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL
gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL
gpiolib: cdev: support edge detection for uAPI v2
gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL
gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL
gpiolib: add build option for CDEV v1 ABI
gpiolib: make cdev a build option
... -
Pull spi updates from Mark Brown:
"There's quite a lot of changes for SPI in this release but none in the
core, they're all mostly small driver updates and additions. Some of
the more notable changes include:- A huge set of cleanups, optimizations and improvements for the
DesignWare driver from Serge Semin finishing up the work started
last release.- Conversion of the Zynq gqspi driver to spi-mem.
- Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742"
* tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (137 commits)
spi: cadence: Add SPI transfer delays
spi: dw: Add Baikal-T1 SPI Controller bindings
spi: dw: Add Baikal-T1 SPI Controller glue driver
spi: dw: Add poll-based SPI transfers support
spi: dw: Introduce max mem-ops SPI bus frequency setting
spi: dw: Add memory operations support
spi: dw: Add generic DW SSI status-check method
spi: dw: Move num-of retries parameter to the header file
spi: dw: Explicitly de-assert CS on SPI transfer completion
spi: dw: De-assert chip-select on reset
spi: dw: Discard chip enabling on DMA setup error
spi: dw: Unmask IRQs after enabling the chip
spi: dw: Perform IRQ setup in a dedicated function
spi: dw: Refactor IRQ-based SPI transfer procedure
spi: dw: Refactor data IO procedure
spi: dw: Add DW SPI controller config structure
spi: dw: Update Rx sample delay in the config function
spi: dw: Simplify the SPI bus speed config procedure
spi: dw: Update SPI bus speed in a config function
spi: dw: Detach SPI device specific CR0 config method
... -
Pull regulator updates from Mark Brown:
"This is a fairly small release for the regulator API, there's quite a
few new devices supported and some important improvements around
coupled regulators in the core but mostly just small fixes and
improvements otherwise.Summary:
- Fixes and cleanups around the handling of coupled regulators.
- A special driver for some Raspberry Pi panels with some unusually
custom stuff around them.- Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek
RT4801 and RTMV20, Rohm BD9576MUF and BD9573MUF"* tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (89 commits)
regulator: bd9576: Fix print
regulator: bd9576: fix regulator binfdings dt node names
dt-bindings: regulator: document pm8950 and pm8953 smd regulators
regulator: qcom_smd: add pm8953 regulators
regulator: Make constraint debug processing conditional on DEBUG
regulator: qcom: labibb: Constify static structs
regulator: dt-bindings: Document the PM660/PM660L PMICs entries
regulator: qcom_smd: Add PM660/PM660L regulator support
regulator: dt-bindings: Document the PM660/660L SPMI PMIC entries
regulator: qcom_spmi: Add PM660/PM660L regulators
regulator: qcom_spmi: Add support for new regulator types
regulator: core: Enlarge max OF property name length to 64 chars
regulator: tps65910: use regmap accessors
regulator: rtmv20: Add missing regcache cache only before marked as dirty
regulator: rtmv20: Update DT binding document and property name parsing
regulator: rtmv20: Add DT-binding document for Richtek RTMV20
regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator
regulator: resolve supply after creating regulator
regulator: print symbolic errors in kernel messages
regulator: print state at boot
... -
Pull regmap updates from Mark Brown:
"Quite a busy release for regmap, mostly support for new features
useful on fairly small subsets of devices. The user visible features
are:- A new API for registering large numbers of regmap fields at once.
- Support for Intel AVMM buses connected via SPI.
- Support for 12/20 address/value layouts.
- Support for yet another scheme for acknowledging interrupts used on
some Qualcomm devices"* tag 'regmap-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: irq: Add support to clear ack registers
regmap: add support to regmap_field_bulk_alloc/free apis
regmap: destroy mutex (if used) in regmap_exit()
regmap: debugfs: use semicolons rather than commas to separate statements
regmap: debugfs: Fix more error path regressions
regmap: Add support for 12/20 register formatting
regmap: Add can_sleep configuration option
regmap: soundwire: remove unused header mod_devicetable.h
regmap: Use flexible sleep
regmap: add Intel SPI Slave to AVMM Bus Bridge support -
Pull media updates from Mauro Carvalho Chehab:
- the usbvision driver was dropped from staging
- the Zoran driver were re-added at staging. It gained lots of
improvements, and was converted to use videobuf2 API- a new virtual driver (vidtv) was added in order to allow testing the
digital TV framework and APIs- the media uAPI documentation gained a glossary with commonly used
terms, helping to simplify some parts of the docs- more cleanups at the atomisp driver
- Mediatek VPU gained support for MT8183
- added support for codecs with supports doing colorspace conversion
(CSC)- support for CSC API was added at vivid and rksip1 drivers
- added a helper core support and uAPI for better supporting H.264
codecs- added support for Renesas R8A774E1
- use the new SPDX GFDL-1.1-no-invariants-or-later license on media
uAPI docs, instead of a license text- Venus driver has gained VP9 codec support
- lots of other cleanups and driver improvements
* tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (555 commits)
media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning
media: tvp7002: fix uninitialized variable warning
media: s5k5baf: drop 'data' field in struct s5k5baf_fw
media: dt-bindings: media: venus: Add an optional power domain for perf voting
media: rcar-vin: rcar-dma: Fix setting VNIS_REG for RAW8 formats
media: staging: rkisp1: uapi: Do not use BIT() macro
media: v4l2-mem2mem: Fix spurious v4l2_m2m_buf_done
media: usbtv: Fix refcounting mixup
media: zoran.rst: place it at the right place this time
media: add Zoran cardlist
media: admin-guide: update cardlists
media: siano: rename a duplicated card string
media: zoran: move documentation file to the right place
media: atomisp: fixes build breakage for ISP2400 due to a cleanup
media: zoran: fix mixed case on vars
media: zoran: get rid of an unused var
media: zoran: use upper case for card types
media: zoran: fix sparse warnings
media: zoran: fix smatch warning
media: zoran: update TODO
... -
Pull MMC updates from Ulf Hansson:
"MMC core:
- Export SDIO revision and info strings to userspace
- Add support for specifying mmc/mmcblk index via mmc aliases in DTMMC host:
- Enable support for async probe for all mmc host drivers
- Enable compile testing of multiple host drivers
- dw_mmc: Enable the Synopsys DesignWare driver for RISCV and CSKY
- mtk-sd: Fixup support for CQHCI
- owl-mmc: Add support for the actions,s700-mmc variant
- renesas_sdhi: Fix regression (temporary) for re-insertion of SD cards
- renesas_sdhi: Add support for the r8a774e1 variant
- renesas_sdhi/tmio: Improvements for tunings
- renesas_sdhi/tmio: Rework support for reset of controller
- sdhci-acpi: Fix HS400 tuning for devices with invalid presets on AMDI0040
- sdhci_am654: Improve support for tunings
- sdhci_am654: Add support for input tap delays
- sdhci_am654: Add workaround for card detect debounce timer
- sdhci-am654: Add support for the TI's J7200 variants
- sdhci-esdhc-imx: Fix support for manual tuning
- sdhci-iproc: Enable support for eMMC DDR 3.3V for bcm2711
- sdhci-msm: Fix stability issues with HS400 for sc7180
- sdhci-of-sparx5: Add Sparx5 SoC eMMC driver
- sdhci-of-esdhc: Fixup reference clock source selection
- sdhci-pci: Add LTR support for some Intel BYT controllers
- sdhci-pci-gli: Add CQHCI Support for GL9763E"* tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (91 commits)
mmc: sdhci_am654: Fix module autoload
mmc: renesas_sdhi: workaround a regression when reinserting SD cards
mmc: sdhci-pci-gli: Add CQHCI Support for GL9763E
mmc: sdhci-acpi: AMDI0040: Set SDHCI_QUIRK2_PRESET_VALUE_BROKEN
mmc: sdhci_am654: Enable tuning for SDR50
mmc: sdhci_am654: Add support for software tuning
mmc: sdhci_am654: Add support for input tap delay
mmc: sdhci_am654: Fix hard coded otap delay array size
dt-bindings: mmc: sdhci-am654: Add documentation for input tap delay
dt-bindings: mmc: sdhci-am654: Convert sdhci-am654 controller documentation to json schema
mmc: sdhci-of-esdhc: fix reference clock source selection
mmc: host: fix depends for MMC_MESON_GX w/ COMPILE_TEST
mmc: sdhci-s3c: hide forward declaration of of_device_id behind CONFIG_OF
mmc: sdhci: fix indentation mistakes
mmc: moxart: remove unneeded check for drvdata
mmc: renesas_sdhi: drop local flag for tuning
mmc: rtsx_usb_sdmmc: simplify the return expression of sd_change_phase()
mmc: core: document mmc_hw_reset()
mmc: mediatek: Drop pointer to mmc_host from msdc_host
dt-bindings: mmc: owl: add compatible string actions,s700-mmc
...
13 Oct, 2020
5 commits
-
Pull crypto updates from Herbert Xu:
"API:
- Allow DRBG testing through user-space af_alg
- Add tcrypt speed testing support for keyed hashes
- Add type-safe init/exit hooks for ahashAlgorithms:
- Mark arc4 as obsolete and pending for future removal
- Mark anubis, khazad, sead and tea as obsolete
- Improve boot-time xor benchmark
- Add OSCCA SM2 asymmetric cipher algorithm and use it for integrityDrivers:
- Fixes and enhancement for XTS in caam
- Add support for XIP8001B hwrng in xiphera-trng
- Add RNG and hash support in sun8i-ce/sun8i-ss
- Allow imx-rngc to be used by kernel entropy pool
- Use crypto engine in omap-sham
- Add support for Ingenic X1830 with ingenic"* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (205 commits)
X.509: Fix modular build of public_key_sm2
crypto: xor - Remove unused variable count in do_xor_speed
X.509: fix error return value on the failed path
crypto: bcm - Verify GCM/CCM key length in setkey
crypto: qat - drop input parameter from adf_enable_aer()
crypto: qat - fix function parameters descriptions
crypto: atmel-tdes - use semicolons rather than commas to separate statements
crypto: drivers - use semicolons rather than commas to separate statements
hwrng: mxc-rnga - use semicolons rather than commas to separate statements
hwrng: iproc-rng200 - use semicolons rather than commas to separate statements
hwrng: stm32 - use semicolons rather than commas to separate statements
crypto: xor - use ktime for template benchmarking
crypto: xor - defer load time benchmark to a later time
crypto: hisilicon/zip - fix the uninitalized 'curr_qm_qp_num'
crypto: hisilicon/zip - fix the return value when device is busy
crypto: hisilicon/zip - fix zero length input in GZIP decompress
crypto: hisilicon/zip - fix the uncleared debug registers
lib/mpi: Fix unused variable warnings
crypto: x86/poly1305 - Remove assignments with no effect
hwrng: npcm - modify readl to readb
... -
Pull compat iovec cleanups from Al Viro:
"Christoph's series around import_iovec() and compat variant thereof"* 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
security/keys: remove compat_keyctl_instantiate_key_iov
mm: remove compat_process_vm_{readv,writev}
fs: remove compat_sys_vmsplice
fs: remove the compat readv/writev syscalls
fs: remove various compat readv/writev helpers
iov_iter: transparently handle compat iovecs in import_iovec
iov_iter: refactor rw_copy_check_uvector and import_iovec
iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c
compat.h: fix a spelling error in -
Pull copy_and_csum cleanups from Al Viro:
"Saner calling conventions for csum_and_copy_..._user() and friends"[ Removing 800+ lines of code and cleaning stuff up is good - Linus ]
* 'work.csum_and_copy' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ppc: propagate the calling conventions change down to csum_partial_copy_generic()
amd64: switch csum_partial_copy_generic() to new calling conventions
sparc64: propagate the calling convention changes down to __csum_partial_copy_...()
xtensa: propagate the calling conventions change down into csum_partial_copy_generic()
mips: propagate the calling convention change down into __csum_partial_copy_..._user()
mips: __csum_partial_copy_kernel() has no users left
mips: csum_and_copy_{to,from}_user() are never called under KERNEL_DS
sparc32: propagate the calling conventions change down to __csum_partial_copy_sparc_generic()
i386: propagate the calling conventions change down to csum_partial_copy_generic()
sh: propage the calling conventions change down to csum_partial_copy_generic()
m68k: get rid of zeroing destination on error in csum_and_copy_from_user()
arm: propagate the calling convention changes down to csum_partial_copy_from_user()
alpha: propagate the calling convention changes down to csum_partial_copy.c helpers
saner calling conventions for csum_and_copy_..._user()
csum_and_copy_..._user(): pass 0xffffffff instead of 0 as initial sum
csum_partial_copy_nocheck(): drop the last argument
unify generic instances of csum_partial_copy_nocheck()
icmp_push_reply(): reorder adding the checksum up
skb_copy_and_csum_bits(): don't bother with the last argument -
Pull static call support from Ingo Molnar:
"This introduces static_call(), which is the idea of static_branch()
applied to indirect function calls. Remove a data load (indirection)
by modifying the text.They give the flexibility of function pointers, but with better
performance. (This is especially important for cases where retpolines
would otherwise be used, as retpolines can be pretty slow.)API overview:
DECLARE_STATIC_CALL(name, func);
DEFINE_STATIC_CALL(name, func);
DEFINE_STATIC_CALL_NULL(name, typename);static_call(name)(args...);
static_call_cond(name)(args...);
static_call_update(name, func);x86 is supported via text patching, otherwise basic indirect calls are
used, with function pointers.There's a second variant using inline code patching, inspired by
jump-labels, implemented on x86 as well.The new APIs are utilized in the x86 perf code, a heavy user of
function pointers, where static calls speed up the PMU handler by
4.2% (!).The generic implementation is not really excercised on other
architectures, outside of the trivial test_static_call_init()
self-test"* tag 'core-static_call-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
static_call: Fix return type of static_call_init
tracepoint: Fix out of sync data passing by static caller
tracepoint: Fix overly long tracepoint names
x86/perf, static_call: Optimize x86_pmu methods
tracepoint: Optimize using static_call()
static_call: Allow early init
static_call: Add some validation
static_call: Handle tail-calls
static_call: Add static_call_cond()
x86/alternatives: Teach text_poke_bp() to emulate RET
static_call: Add simple self-test for static calls
x86/static_call: Add inline static call implementation for x86-64
x86/static_call: Add out-of-line static call implementation
static_call: Avoid kprobes on inline static_call()s
static_call: Add inline static call infrastructure
static_call: Add basic static call infrastructure
compiler.h: Make __ADDRESSABLE() symbol truly unique
jump_label,module: Fix module lifetime for __jump_label_mod_text_reserved()
module: Properly propagate MODULE_STATE_COMING failure
module: Fix up module_notifier return values
... -
Pull orphan section checking from Ingo Molnar:
"Orphan link sections were a long-standing source of obscure bugs,
because the heuristics that various linkers & compilers use to handle
them (include these bits into the output image vs discarding them
silently) are both highly idiosyncratic and also version dependent.Instead of this historically problematic mess, this tree by Kees Cook
(et al) adds build time asserts and build time warnings if there's any
orphan section in the kernel or if a section is not sized as expected.And because we relied on so many silent assumptions in this area, fix
a metric ton of dependencies and some outright bugs related to this,
before we can finally enable the checks on the x86, ARM and ARM64
platforms"* tag 'core-build-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
x86/boot/compressed: Warn on orphan section placement
x86/build: Warn on orphan section placement
arm/boot: Warn on orphan section placement
arm/build: Warn on orphan section placement
arm64/build: Warn on orphan section placement
x86/boot/compressed: Add missing debugging sections to output
x86/boot/compressed: Remove, discard, or assert for unwanted sections
x86/boot/compressed: Reorganize zero-size section asserts
x86/build: Add asserts for unwanted sections
x86/build: Enforce an empty .got.plt section
x86/asm: Avoid generating unused kprobe sections
arm/boot: Handle all sections explicitly
arm/build: Assert for unwanted sections
arm/build: Add missing sections
arm/build: Explicitly keep .ARM.attributes sections
arm/build: Refactor linker script headers
arm64/build: Assert for unwanted sections
arm64/build: Add missing DWARF sections
arm64/build: Use common DISCARDS in linker script
arm64/build: Remove .eh_frame* sections due to unwind tables
...