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Add new property "ti,system-power-controller" to register the RTC as a
power-off handler.
Some RTC IP revisions can control an external PMIC via the pmic_power_en
pin, which can be configured to transition to OFF on ALARM2 events and
back to ON on subsequent ALARM (wakealarm) events.
This is based on earlier work by Colin Foe-Parker and AnilKumar Ch. [1]
[1] https://www.mail-archive.com/linux-omap@vger.kernel.org/msg82127.html
[akpm@linux-foundation.org: add comment]
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Colin Foe-Parker <colin.foeparker@logicpd.com>
Cc: AnilKumar Ch <anilkumar@ti.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benot Cousson <bcousson@baylibre.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Keerthy J <j-keerthy@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There have been several times where I have had to rebuild a kernel to
cause a panic when hitting a WARN() in the code in order to get a crash
dump from a system. Sometimes this is easy to do, other times (such as
in the case of a remote admin) it is not trivial to send new images to
the user.
A much easier method would be a switch to change the WARN() over to a
panic. This makes debugging easier in that I can now test the actual
image the WARN() was seen on and I do not have to engage in remote
debugging.
This patch adds a panic_on_warn kernel parameter and
/proc/sys/kernel/panic_on_warn calls panic() in the
warn_slowpath_common() path. The function will still print out the
location of the warning.
An example of the panic_on_warn output:
The first line below is from the WARN_ON() to output the WARN_ON()'s
location. After that the panic() output is displayed.
WARNING: CPU: 30 PID: 11698 at /home/prarit/dummy_module/dummy-module.c:25 init_dummy+0x1f/0x30 [dummy_module]()
Kernel panic - not syncing: panic_on_warn set ...
CPU: 30 PID: 11698 Comm: insmod Tainted: G W OE 3.17.0+ #57
Hardware name: Intel Corporation S2600CP/S2600CP, BIOS RMLSDP.86I.00.29.D696.1311111329 11/11/2013
0000000000000000 000000008e3f87df ffff88080f093c38 ffffffff81665190
0000000000000000 ffffffff818aea3d ffff88080f093cb8 ffffffff8165e2ec
ffffffff00000008 ffff88080f093cc8 ffff88080f093c68 000000008e3f87df
Call Trace:
[<ffffffff81665190>] dump_stack+0x46/0x58
[<ffffffff8165e2ec>] panic+0xd0/0x204
[<ffffffffa038e05f>] ? init_dummy+0x1f/0x30 [dummy_module]
[<ffffffff81076b90>] warn_slowpath_common+0xd0/0xd0
[<ffffffffa038e040>] ? dummy_greetings+0x40/0x40 [dummy_module]
[<ffffffff81076c8a>] warn_slowpath_null+0x1a/0x20
[<ffffffffa038e05f>] init_dummy+0x1f/0x30 [dummy_module]
[<ffffffff81002144>] do_one_initcall+0xd4/0x210
[<ffffffff811b52c2>] ? __vunmap+0xc2/0x110
[<ffffffff810f8889>] load_module+0x16a9/0x1b30
[<ffffffff810f3d30>] ? store_uevent+0x70/0x70
[<ffffffff810f49b9>] ? copy_module_from_fd.isra.44+0x129/0x180
[<ffffffff810f8ec6>] SyS_finit_module+0xa6/0xd0
[<ffffffff8166cf29>] system_call_fastpath+0x12/0x17
Successfully tested by me.
hpa said: There is another very valid use for this: many operators would
rather a machine shuts down than being potentially compromised either
functionally or security-wise.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Memory cgroups used to have 5 per-page pointers. To allow users to
disable that amount of overhead during runtime, those pointers were
allocated in a separate array, with a translation layer between them and
struct page.
There is now only one page pointer remaining: the memcg pointer, that
indicates which cgroup the page is associated with when charged. The
complexity of runtime allocation and the runtime translation overhead is
no longer justified to save that *potential* 0.19% of memory. With
CONFIG_SLUB, page->mem_cgroup actually sits in the doubleword padding
after the page->private member and doesn't even increase struct page,
and then this patch actually saves space. Remaining users that care can
still compile their kernels without CONFIG_MEMCG.
text data bss dec hex filename
8828345 1725264 983040 11536649 b00909 vmlinux.old
8827425 1725264 966656 11519345 afc571 vmlinux.new
[mhocko@suse.cz: update Documentation/cgroups/memory.txt]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Konstantin Khlebnikov <koct9i@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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All memory accounting and limiting has been switched over to the
lockless page counters. Bye, res_counter!
[akpm@linux-foundation.org: update Documentation/cgroups/memory.txt]
[mhocko@suse.cz: ditch the last remainings of res_counter]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Abandon the spinlock-protected byte counters in favor of the unlocked
page counters in the hugetlb controller as well.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Memory is internally accounted in bytes, using spinlock-protected 64-bit
counters, even though the smallest accounting delta is a page. The
counter interface is also convoluted and does too many things.
Introduce a new lockless word-sized page counter API, then change all
memory accounting over to it. The translation from and to bytes then only
happens when interfacing with userspace.
The removed locking overhead is noticable when scaling beyond the per-cpu
charge caches - on a 4-socket machine with 144-threads, the following test
shows the performance differences of 288 memcgs concurrently running a
page fault benchmark:
vanilla:
18631648.500498 task-clock (msec) # 140.643 CPUs utilized ( +- 0.33% )
1,380,638 context-switches # 0.074 K/sec ( +- 0.75% )
24,390 cpu-migrations # 0.001 K/sec ( +- 8.44% )
1,843,305,768 page-faults # 0.099 M/sec ( +- 0.00% )
50,134,994,088,218 cycles # 2.691 GHz ( +- 0.33% )
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
8,049,712,224,651 instructions # 0.16 insns per cycle ( +- 0.04% )
1,586,970,584,979 branches # 85.176 M/sec ( +- 0.05% )
1,724,989,949 branch-misses # 0.11% of all branches ( +- 0.48% )
132.474343877 seconds time elapsed ( +- 0.21% )
lockless:
12195979.037525 task-clock (msec) # 133.480 CPUs utilized ( +- 0.18% )
832,850 context-switches # 0.068 K/sec ( +- 0.54% )
15,624 cpu-migrations # 0.001 K/sec ( +- 10.17% )
1,843,304,774 page-faults # 0.151 M/sec ( +- 0.00% )
32,811,216,801,141 cycles # 2.690 GHz ( +- 0.18% )
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
9,999,265,091,727 instructions # 0.30 insns per cycle ( +- 0.10% )
2,076,759,325,203 branches # 170.282 M/sec ( +- 0.12% )
1,656,917,214 branch-misses # 0.08% of all branches ( +- 0.55% )
91.369330729 seconds time elapsed ( +- 0.45% )
On top of improved scalability, this also gets rid of the icky long long
types in the very heart of memcg, which is great for 32 bit and also makes
the code a lot more readable.
Notable differences between the old and new API:
- res_counter_charge() and res_counter_charge_nofail() become
page_counter_try_charge() and page_counter_charge() resp. to match
the more common kernel naming scheme of try_do()/do()
- res_counter_uncharge_until() is only ever used to cancel a local
counter and never to uncharge bigger segments of a hierarchy, so
it's replaced by the simpler page_counter_cancel()
- res_counter_set_limit() is replaced by page_counter_limit(), which
expects its callers to serialize against themselves
- res_counter_memparse_write_strategy() is replaced by
page_counter_limit(), which rounds down to the nearest page size -
rather than up. This is more reasonable for explicitely requested
hard upper limits.
- to keep charging light-weight, page_counter_try_charge() charges
speculatively, only to roll back if the result exceeds the limit.
Because of this, a failing bigger charge can temporarily lock out
smaller charges that would otherwise succeed. The error is bounded
to the difference between the smallest and the biggest possible
charge size, so for memcg, this means that a failing THP charge can
send base page charges into reclaim upto 2MB (4MB) before the limit
would have been reached. This should be acceptable.
[akpm@linux-foundation.org: add includes for WARN_ON_ONCE and memparse]
[akpm@linux-foundation.org: add includes for WARN_ON_ONCE, memparse, strncmp, and PAGE_SIZE]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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And fix a spelling mistake.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Merge drm core fixes from Daniel.
* tag 'topic/core-stuff-2014-12-10' of git://anongit.freedesktop.org/drm-intel:
drm: Zero out DRM object memory upon cleanup
drm: fix a typo in a comment
drm: fix a word repetition in a comment
drm: Fix memory leak at error path of drm_read()
drm/Documentation: Fix rowspan value in drm-kms-properties
drm/edid: Restore kerneldoc consistency
drm/edid: new drm_edid_block_checksum helper function V3
drm/edid: shorten log output in case of all zeroes edid block
drm/edid: move drm_edid_is_zero to top, make edid argument const
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Pull VFS changes from Al Viro:
"First pile out of several (there _definitely_ will be more). Stuff in
this one:
- unification of d_splice_alias()/d_materialize_unique()
- iov_iter rewrite
- killing a bunch of ->f_path.dentry users (and f_dentry macro).
Getting that completed will make life much simpler for
unionmount/overlayfs, since then we'll be able to limit the places
sensitive to file _dentry_ to reasonably few. Which allows to have
file_inode(file) pointing to inode in a covered layer, with dentry
pointing to (negative) dentry in union one.
Still not complete, but much closer now.
- crapectomy in lustre (dead code removal, mostly)
- "let's make seq_printf return nothing" preparations
- assorted cleanups and fixes
There _definitely_ will be more piles"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
copy_from_iter_nocache()
new helper: iov_iter_kvec()
csum_and_copy_..._iter()
iov_iter.c: handle ITER_KVEC directly
iov_iter.c: convert copy_to_iter() to iterate_and_advance
iov_iter.c: convert copy_from_iter() to iterate_and_advance
iov_iter.c: get rid of bvec_copy_page_{to,from}_iter()
iov_iter.c: convert iov_iter_zero() to iterate_and_advance
iov_iter.c: convert iov_iter_get_pages_alloc() to iterate_all_kinds
iov_iter.c: convert iov_iter_get_pages() to iterate_all_kinds
iov_iter.c: convert iov_iter_npages() to iterate_all_kinds
iov_iter.c: iterate_and_advance
iov_iter.c: macros for iterating over iov_iter
kill f_dentry macro
dcache: fix kmemcheck warning in switch_names
new helper: audit_file()
nfsd_vfs_write(): use file_inode()
ncpfs: use file_inode()
kill f_dentry uses
lockd: get rid of ->f_path.dentry->d_sb
...
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Pull f2fs updates from Jaegeuk Kim:
"This patch-set includes lots of bug fixes based on clean-ups and
refactored codes. And inline_dir was introduced and two minor mount
options were added. Details from signed tag:
This series includes the following enhancement with refactored flows.
- fix inmemory page operations
- fix wrong inline_data & inline_dir logics
- enhance memory and IO control under memory pressure
- consider preemption on radix_tree operation
- fix memory leaks and deadlocks
But also, there are a couple of new features:
- support inline_dir to store dentries inside inode page
- add -o fastboot to reduce booting time
- implement -o dirsync
And a lot of clean-ups and minor bug fixes as well"
* tag 'for-f2fs-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (88 commits)
f2fs: avoid to ra unneeded blocks in recover flow
f2fs: introduce is_valid_blkaddr to cleanup codes in ra_meta_pages
f2fs: fix to enable readahead for SSA/CP blocks
f2fs: use atomic for counting inode with inline_{dir,inode} flag
f2fs: cleanup path to need cp at fsync
f2fs: check if inode state is dirty at fsync
f2fs: count the number of inmemory pages
f2fs: release inmemory pages when the file was closed
f2fs: set page private for inmemory pages for truncation
f2fs: count inline_xx in do_read_inode
f2fs: do retry operations with cond_resched
f2fs: call radix_tree_preload before radix_tree_insert
f2fs: use rw_semaphore for nat entry lock
f2fs: fix missing kmem_cache_free
f2fs: more fast lookup for gc_inode list
f2fs: cleanup redundant macro
f2fs: fix to return correct error number in f2fs_write_begin
f2fs: cleanup if-statement of phase in gc_data_segment
f2fs: fix to recover converted inline_data
f2fs: make clean the page before writing
...
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To force loading on Oracle Sun X86 servers, provide one kernel command line
parameter
intel_pstate = force
For those who are aware of the risk of no power capping capabily working
and try to get better performance with this driver.
Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
Tested-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Reviewed-by: Linda Knippers <linda.knippers@hp.com>
Acked-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Conflicts:
drivers/net/ethernet/amd/xgbe/xgbe-desc.c
drivers/net/ethernet/renesas/sh_eth.c
Overlapping changes in both conflict cases.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull x86 MPX support from Thomas Gleixner:
"This enables support for x86 MPX.
MPX is a new debug feature for bound checking in user space. It
requires kernel support to handle the bound tables and decode the
bound violating instruction in the trap handler"
* 'x86-mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
asm-generic: Remove asm-generic arch_bprm_mm_init()
mm: Make arch_unmap()/bprm_mm_init() available to all architectures
x86: Cleanly separate use of asm-generic/mm_hooks.h
x86 mpx: Change return type of get_reg_offset()
fs: Do not include mpx.h in exec.c
x86, mpx: Add documentation on Intel MPX
x86, mpx: Cleanup unused bound tables
x86, mpx: On-demand kernel allocation of bounds tables
x86, mpx: Decode MPX instruction to get bound violation information
x86, mpx: Add MPX-specific mmap interface
x86, mpx: Introduce VM_MPX to indicate that a VMA is MPX specific
x86, mpx: Add MPX to disabled features
ia64: Sync struct siginfo with general version
mips: Sync struct siginfo with general version
mpx: Extend siginfo structure to include bound violation information
x86, mpx: Rename cfg_reg_u and status_reg
x86: mpx: Give bndX registers actual names
x86: Remove arbitrary instruction size limit in instruction decoder
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Pull irq domain updates from Thomas Gleixner:
"The real interesting irq updates:
- Support for hierarchical irq domains:
For complex interrupt routing scenarios where more than one
interrupt related chip is involved we had no proper representation
in the generic interrupt infrastructure so far. That made people
implement rather ugly constructs in their nested irq chip
implementations. The main offenders are x86 and arm/gic.
To distangle that mess we have now hierarchical irqdomains which
seperate the various interrupt chips and connect them via the
hierarchical domains. That keeps the domain specific details
internal to the particular hierarchy level and removes the
criss/cross referencing of chip internals. The resulting hierarchy
for a complex x86 system will look like this:
vector mapped: 74
msi-0 mapped: 2
dmar-ir-1 mapped: 69
ioapic-1 mapped: 4
ioapic-0 mapped: 20
pci-msi-2 mapped: 45
dmar-ir-0 mapped: 3
ioapic-2 mapped: 1
pci-msi-1 mapped: 2
htirq mapped: 0
Neither ioapic nor pci-msi know about the dmar interrupt remapping
between themself and the vector domain. If interrupt remapping is
disabled ioapic and pci-msi become direct childs of the vector
domain.
In hindsight we should have done that years ago, but in hindsight
we always know better :)
- Support for generic MSI interrupt domain handling
We have more and more non PCI related MSI interrupts, so providing
a generic infrastructure for this is better than having all
affected architectures implementing their own private hacks.
- Support for PCI-MSI interrupt domain handling, based on the generic
MSI support.
This part carries the pci/msi branch from Bjorn Helgaas pci tree to
avoid a massive conflict. The PCI/MSI parts are acked by Bjorn.
I have two more branches on top of this. The full conversion of x86
to hierarchical domains and a partial conversion of arm/gic"
* 'irq-irqdomain-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
genirq: Move irq_chip_write_msi_msg() helper to core
PCI/MSI: Allow an msi_controller to be associated to an irq domain
PCI/MSI: Provide mechanism to alloc/free MSI/MSIX interrupt from irqdomain
PCI/MSI: Enhance core to support hierarchy irqdomain
PCI/MSI: Move cached entry functions to irq core
genirq: Provide default callbacks for msi_domain_ops
genirq: Introduce msi_domain_alloc/free_irqs()
asm-generic: Add msi.h
genirq: Add generic msi irq domain support
genirq: Introduce callback irq_chip.irq_write_msi_msg
genirq: Work around __irq_set_handler vs stacked domains ordering issues
irqdomain: Introduce helper function irq_domain_add_hierarchy()
irqdomain: Implement a method to automatically call parent domains alloc/free
genirq: Introduce helper irq_domain_set_info() to reduce duplicated code
genirq: Split out flow handler typedefs into seperate header file
genirq: Add IRQ_SET_MASK_OK_DONE to support stacked irqchip
genirq: Introduce irq_chip.irq_compose_msi_msg() to support stacked irqchip
genirq: Add more helper functions to support stacked irq_chip
genirq: Introduce helper functions to support stacked irq_chip
irqdomain: Do irq_find_mapping and set_type for hierarchy irqdomain in case OF
...
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Pull irq core updates from Thomas Gleixner:
"This is the first (boring) part of irq updates:
- support for big endian I/O accessors in the generic irq chip
- cleanup of brcmstb/bcm7120 drivers so they can be reused for non
ARM SoCs
- the usual pile of fixes and updates for the various ARM irq chips"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
irqchip: dw-apb-ictl: Add PM support
irqchip: dw-apb-ictl: Enable IRQ_GC_MASK_CACHE_PER_TYPE
irqchip: dw-apb-ictl: Always use use {readl|writel}_relaxed
ARM: orion: convert the irq_reg_{readl,writel} calls to the new API
irqchip: atmel-aic: Add missing entry for rm9200 irq fixups
irqchip: atmel-aic: Rename at91sam9_aic_irq_fixup for naming consistency
irqchip: atmel-aic: Add specific irq fixup function for sam9g45 and sam9rl
irqchip: atmel-aic: Add irq fixups for at91sam926x SoCs
irqchip: atmel-aic: Add irq fixup for RTT block
irqchip: brcmstb-l2: Convert driver to use irq_reg_{readl,writel}
irqchip: bcm7120-l2: Convert driver to use irq_reg_{readl,writel}
irqchip: bcm7120-l2: Decouple driver from brcmstb-l2
irqchip: bcm7120-l2: Extend driver to support 64+ bit controllers
irqchip: bcm7120-l2: Use gc->mask_cache to simplify suspend/resume functions
irqchip: bcm7120-l2: Fix missing nibble in gc->unused mask
irqchip: bcm7120-l2: Make sure all register accesses use base+offset
irqchip: bcm7120-l2, brcmstb-l2: Remove ARM Kconfig dependency
irqchip: bcm7120-l2: Eliminate bad IRQ check
irqchip: brcmstb-l2: Eliminate dependency on ARM code
genirq: Generic chip: Add big endian I/O accessors
...
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Pull timer core updates from Thomas Gleixner:
"The time(r) departement provides:
- more infrastructure work on the year 2038 issue
- a few fixes in the Armada SoC timers
- the usual pile of fixlets and improvements"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource: armada-370-xp: Use the reference clock on A375 SoC
watchdog: orion: Use the reference clock on Armada 375 SoC
clocksource: armada-370-xp: Add missing clock enable
time: Fix sign bug in NTP mult overflow warning
time: Remove timekeeping_inject_sleeptime()
rtc: Update suspend/resume timing to use 64bit time
rtc/lib: Provide y2038 safe rtc_tm_to_time()/rtc_time_to_tm() replacement
time: Fixup comments to reflect usage of timespec64
time: Expose get_monotonic_coarse64() for in-kernel uses
time: Expose getrawmonotonic64 for in-kernel uses
time: Provide y2038 safe mktime() replacement
time: Provide y2038 safe timekeeping_inject_sleeptime() replacement
time: Provide y2038 safe do_settimeofday() replacement
time: Complete NTP adjustment threshold judging conditions
time: Avoid possible NTP adjustment mult overflow.
time: Rename udelay_test.c to test_udelay.c
clocksource: sirf: Remove hard-coded clock rate
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Also update the documentation to the latest state.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Pull RCU updates from Ingo Molnar:
"These are the main changes in this cycle:
- Streamline RCU's use of per-CPU variables, shifting from "cpu"
arguments to functions to "this_"-style per-CPU variable
accessors.
- signal-handling RCU updates.
- real-time updates.
- torture-test updates.
- miscellaneous fixes.
- documentation updates"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
rcu: Fix FIXME in rcu_tasks_kthread()
rcu: More info about potential deadlocks with rcu_read_unlock()
rcu: Optimize cond_resched_rcu_qs()
rcu: Add sparse check for RCU_INIT_POINTER()
documentation: memory-barriers.txt: Correct example for reorderings
documentation: Add atomic_long_t to atomic_ops.txt
documentation: Additional restriction for control dependencies
documentation: Document RCU self test boot params
rcutorture: Fix rcu_torture_cbflood() memory leak
rcutorture: Remove obsolete kversion param in kvm.sh
rcutorture: Remove stale test configurations
rcutorture: Enable RCU self test in configs
rcutorture: Add early boot self tests
torture: Run Linux-kernel binary out of results directory
cpu: Avoid puts_pending overflow
rcu: Remove "cpu" argument to rcu_cleanup_after_idle()
rcu: Remove "cpu" argument to rcu_prepare_for_idle()
rcu: Remove "cpu" argument to rcu_needs_cpu()
rcu: Remove "cpu" argument to rcu_note_context_switch()
rcu: Remove "cpu" argument to rcu_preempt_check_callbacks()
...
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Pull locking tree changes from Ingo Molnar:
"Two changes: a documentation update and a ticket locks live lock fix"
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ticketlock: Fix spin_unlock_wait() livelock
locking/lglocks: Add documentation of current lglocks implementation
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Pull asm-generic asm/io.h rewrite from Arnd Bergmann:
"While there normally is no reason to have a pull request for
asm-generic but have all changes get merged through whichever tree
needs them, I do have a series for 3.19.
There are two sets of patches that change significant portions of
asm/io.h, and this branch contains both in order to resolve the
conflicts:
- Will Deacon has done a set of patches to ensure that all
architectures define {read,write}{b,w,l,q}_relaxed() functions or
get them by including asm-generic/io.h.
These functions are commonly used on ARM specific drivers to avoid
expensive L2 cache synchronization implied by the normal
{read,write}{b,w,l,q}, but we need to define them on all
architectures in order to share the drivers across architectures
and to enable CONFIG_COMPILE_TEST configurations for them
- Thierry Reding has done an unrelated set of patches that extends
the asm-generic/io.h file to the degree necessary to make it useful
on ARM64 and potentially other architectures"
* tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (29 commits)
ARM64: use GENERIC_PCI_IOMAP
sparc: io: remove duplicate relaxed accessors on sparc32
ARM: sa11x0: Use void __iomem * in MMIO accessors
arm64: Use include/asm-generic/io.h
ARM: Use include/asm-generic/io.h
asm-generic/io.h: Implement generic {read,write}s*()
asm-generic/io.h: Reconcile I/O accessor overrides
/dev/mem: Use more consistent data types
Change xlate_dev_{kmem,mem}_ptr() prototypes
ARM: ixp4xx: Properly override I/O accessors
ARM: ixp4xx: Fix build with IXP4XX_INDIRECT_PCI
ARM: ebsa110: Properly override I/O accessors
ARC: Remove redundant PCI_IOBASE declaration
documentation: memory-barriers: clarify relaxed io accessor semantics
x86: io: implement dummy relaxed accessor macros for writes
tile: io: implement dummy relaxed accessor macros for writes
sparc: io: implement dummy relaxed accessor macros for writes
powerpc: io: implement dummy relaxed accessor macros for writes
parisc: io: implement dummy relaxed accessor macros for writes
mn10300: io: implement dummy relaxed accessor macros for writes
...
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John W. Linville says:
====================
pull request: wireless-next 2014-12-08
Please pull this last batch of pending wireless updates for the 3.19 tree...
For the wireless bits, Johannes says:
"This time I have Felix's no-status rate control work, which will allow
drivers to work better with rate control even if they don't have perfect
status reporting. In addition to this, a small hwsim fix from Patrik,
one of the regulatory patches from Arik, and a number of cleanups and
fixes I did myself.
Of note is a patch where I disable CFG80211_WEXT so that compatibility
is no longer selectable - this is intended as a wake-up call for anyone
who's still using it, and is still easily worked around (it's a one-line
patch) before we fully remove the code as well in the future."
For the Bluetooth bits, Johan says:
"Here's one more bluetooth-next pull request for 3.19:
- Minor cleanups for ieee802154 & mac802154
- Fix for the kernel warning with !TASK_RUNNING reported by Kirill A.
Shutemov
- Support for another ath3k device
- Fix for tracking link key based security level
- Device tree bindings for btmrvl + a state update fix
- Fix for wrong ACL flags on LE links"
And...
"In addition to the previous one this contains two more cleanups to
mac802154 as well as support for some new HCI features from the
Bluetooth 4.2 specification.
From the original request:
'Here's what should be the last bluetooth-next pull request for 3.19.
It's rather large but the majority of it is the Low Energy Secure
Connections feature that's part of the Bluetooth 4.2 specification. The
specification went public only this week so we couldn't publish the
corresponding code before that. The code itself can nevertheless be
considered fairly mature as it's been in development for over 6 months
and gone through several interoperability test events.
Besides LE SC the pull request contains an important fix for command
complete events for mgmt sockets which also fixes some leaks of hci_conn
objects when powering off or unplugging Bluetooth adapters.
A smaller feature that's part of the pull request is service discovery
support. This is like normal device discovery except that devices not
matching specific UUIDs or strong enough RSSI are filtered out.
Other changes that the pull request contains are firmware dump support
to the btmrvl driver, firmware download support for Broadcom BCM20702A0
variants, as well as some coding style cleanups in 6lowpan &
ieee802154/mac802154 code.'"
For the NFC bits, Samuel says:
"With this one we get:
- NFC digital improvements for DEP support: Chaining, NACK and ATN
support added.
- NCI improvements: Support for p2p target, SE IO operand addition,
SE operands extensions to support proprietary implementations, and
a few fixes.
- NFC HCI improvements: OPEN_PIPE and NOTIFY_ALL_CLEARED support,
and SE IO operand addition.
- A bunch of minor improvements and fixes for STMicro st21nfcb and
st21nfca"
For the iwlwifi bits, Emmanuel says:
"Major works are CSA and TDLS. On top of that I have a new
firmware API for scan and a few rate control improvements.
Johannes find a few tricks to improve our CPU utilization
and adds support for a new spin of 7265 called 7265D.
Along with this a few random things that don't stand out."
And...
"I deprecate here -8.ucode since -9 has been published long ago.
Along with that I have a new activity, we have now better
a infrastructure for firmware debugging. This will allow to
have configurable probes insides the firmware.
Luca continues his work on NetDetect, this feature is now
complete. All the rest is minor fixes here and there."
For the Atheros bits, Kalle says:
"Only ath10k changes this time and no major changes. Most visible are:
o new debugfs interface for runtime firmware debugging (Yanbo)
o fix shared WEP (Sujith)
o don't rebuild whenever kernel version changes (Johannes)
o lots of refactoring to make it easier to add new hw support (Michal)
There's also smaller fixes and improvements with no point of listing
here."
In addition, there are a few last minute updates to ath5k,
ath9k, brcmfmac, brcmsmac, mwifiex, rt2x00, rtlwifi, and wil6210.
Also included is a pull of the wireless tree to pick-up the fixes
originally included in "pull request: wireless 2014-12-03"...
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull ARM SoC DT updates from Arnd Bergmann:
"The DT branch adds a lot of new stuff for additional SoC and board
support. The branch is the largest one and contains 513 out of the
total 972 non-merge arm-soc changesets for 3.19.
Most of the changes are about enabling additional on-chip devices for
existing machines, but there are also an unusual number of new SoC
types being added this time:
- AMLogic Meson8
- ARM Realview in DT mode
- Allwinner A80
- Broadcom BCM47081
- Broadcom Cygnus
- Freescale LS1021A
- Freescale Vybrid 500 series
- Mediatek MT6592, MT8127, MT8135
- STMicroelectronics STiH410
- Samsung Exynos4415
The level of support for the above differs widely, some are just stubs
with nothing more than CPU, memory and a UART, but others are fairly
complete. As usual, these get extended over time.
There are also many new boards getting added, this is the list of
model strings that are showing up in new dts files:
- ARM RealView PB1176
- Altera SOCFPGA Arria 10
- Asus RT-N18U (BCM47081)
- Buffalo WZR-1750DHP (BCM4708)
- Buffalo WZR-600DHP2 (BCM47081)
- Cygnus Enterprise Phone (BCM911360_ENTPHN)
- D-Link DIR-665
- Google Spring
- IGEP COM MODULE Rev. G (TI OMAP AM/DM37x)
- IGEPv2 Rev. F (TI OMAP AM/DM37x)
- LS1021A QDS Board
- LS1021A TWR Board
- LeMaker Banana Pi
- MarsBoard RK3066
- MediaTek MT8127 Moose Board
- MediaTek MT8135 evaluation board
- Mele M3
- Merrii A80 Optimus Board
- Netgear R6300 V2 (BCM4708)
- Nomadik STN8815NHK
- NovaTech OrionLXm
- Olimex A20-OLinuXino-LIME2
- Raspberry Pi Model B+
- STiH410 B2120
- Samsung Monk board
- Samsung Rinato board
- Synology DS213j
- Synology DS414
- TBS2910 Matrix ARM mini PC
- TI AM5728 BeagleBoard-X15
- Toradex Colibri VF50 on Colibri Evaluation Board
- Zynq ZYBO Development Board
Other notable changes include:
- exynos: cleanup of existing dts files
- mvebu: improved pinctrl support for Armada 370/XP
- nomadik: restructuring dts files
- omap: added CAN bus support
- shmobile: added clock support for some SoCs
- shmobile: added sound support for some SoCs
- sirf: reset controller support
- sunxi: continuing the relicensing under dual GPL/MIT
- sunxi: lots of new on-chip device support
- sunxi: working simplefb support (long awaited)
- various: provide stdout-path property for earlycon"
* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (510 commits)
ARM: dts: rk3288: add arm,cpu-registers-not-fw-configured
Revert "ARM: dts: rockchip: temporarily disable smp on rk3288"
ARM: BCM5301X: Add DT for Buffalo WZR-600DHP2
ARM: BCM5301X: Add DT for Asus RT-N18U
ARM: BCM5301X: Add DT for Buffalo WZR-1750DHP
ARM: BCM5301X: Add DT for Netgear R6300 V2
ARM: BCM5301X: Add buttons for Netgear R6250
ARM: dts: rockchip: Add input voltage supply regulators in pmic for Marsboard
ARM: BCM5301X: Add IRQs to Broadcom's bus-axi in DTS file
arm: dts: zynq: Add Digilent ZYBO board
arm: dts: zynq: Move crystal freq. to board level
doc: dt: vendor-prefixes: Add Digilent Inc
Documentation: devicetree: Fix Xilinx VDMA specification
ARM: dts: rockchip: set FIFO size for SDMMC, SDIO and EMMC on rk3066 and rk3188
ARM: dts: rockchip: add label property for leds on Radxa Rock
ARM: BCM5301X: Add LEDs for Netgear R6250 V1
ARM: BCM5301X: Add Broadcom's bus-axi to the DTS file
ARM: dts: add sysreg phandle to i2c device nodes for exynos
ARM: dts: Remove unused bootargs from exynos3250-rinato
ARM: dts: add board dts file for Exynos3250-based Monk board
...
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Pull ARM SoC driver updates from Arnd Bergmann:
"These are changes for drivers that are intimately tied to some SoC and
for some reason could not get merged through the respective subsystem
maintainer tree.
The largest single change here this time around is the Tegra
iommu/memory controller driver, which gets updated to the new iommu DT
binding. More drivers like this are likely to follow for the
following merge window, but we should be able to do those through the
iommu maintainer.
Other notable changes are:
- reset controller drivers from the reset maintainer (socfpga, sti,
berlin)
- fixes for the keystone navigator driver merged last time
- at91 rtc driver changes related to the at91 cleanups
- ARM perf driver changes from Will Deacon
- updates for the brcmstb_gisb driver"
* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits)
clocksource: arch_timer: Allow the device tree to specify uninitialized timer registers
clocksource: arch_timer: Fix code to use physical timers when requested
memory: Add NVIDIA Tegra memory controller support
bus: brcmstb_gisb: Add register offset tables for older chips
bus: brcmstb_gisb: Look up register offsets in a table
bus: brcmstb_gisb: Introduce wrapper functions for MMIO accesses
bus: brcmstb_gisb: Make the driver buildable on MIPS
of: Add NVIDIA Tegra memory controller binding
ARM: tegra: Move AHB Kconfig to drivers/amba
amba: Add Kconfig file
clk: tegra: Implement memory-controller clock
serial: samsung: Fix serial config dependencies for exynos7
bus: brcmstb_gisb: resolve section mismatch
ARM: common: edma: edma_pm_resume may be unused
ARM: common: edma: add suspend resume hook
powerpc/iommu: Rename iommu_[un]map_sg functions
rtc: at91sam9: add DT bindings documentation
rtc: at91sam9: use clk API instead of relying on AT91_SLOW_CLOCK
ARM: at91: add clk_lookup entry for RTT devices
rtc: at91sam9: rework the Kconfig description
...
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Pull ARM SoC platform changes from Arnd Bergmann:
"New and updated SoC support, notable changes include:
- bcm:
brcmstb SMP support
initial iproc/cygnus support
- exynos:
Exynos4415 SoC support
PMU and suspend support for Exynos5420
PMU support for Exynos3250
pm related maintenance
- imx:
new LS1021A SoC support
vybrid 610 global timer support
- integrator:
convert to using multiplatform configuration
- mediatek:
earlyprintk support for mt8127/mt8135
- meson:
meson8 soc and l2 cache controller support
- mvebu:
Armada 38x CPU hotplug support
drop support for prerelease Armada 375 Z1 stepping
extended suspend support, now works on Armada 370/XP
- omap:
hwmod related maintenance
prcm cleanup
- pxa:
initial pxa27x DT handling
- rockchip:
SMP support for rk3288
add cpu frequency scaling support
- shmobile:
r8a7740 power domain support
various small restart, timer, pci apmu changes
- sunxi:
Allwinner A80 (sun9i) earlyprintk support
- ux500:
power domain support
Overall, a significant chunk of changes, coming mostly from the usual
suspects: omap, shmobile, samsung and mvebu, all of which already
contain a lot of platform specific code in arch/arm"
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (187 commits)
ARM: mvebu: use the cpufreq-dt platform_data for independent clocks
soc: integrator: Add terminating entry for integrator_cm_match
ARM: mvebu: add SDRAM controller description for Armada XP
ARM: mvebu: adjust mbus controller description on Armada 370/XP
ARM: mvebu: add suspend/resume DT information for Armada XP GP
ARM: mvebu: synchronize secondary CPU clocks on resume
ARM: mvebu: make sure MMU is disabled in armada_370_xp_cpu_resume
ARM: mvebu: Armada XP GP specific suspend/resume code
ARM: mvebu: reserve the first 10 KB of each memory bank for suspend/resume
ARM: mvebu: implement suspend/resume support for Armada XP
clk: mvebu: add suspend/resume for gatable clocks
bus: mvebu-mbus: provide a mechanism to save SDRAM window configuration
bus: mvebu-mbus: suspend/resume support
clocksource: time-armada-370-xp: add suspend/resume support
irqchip: armada-370-xp: Add suspend/resume support
ARM: add lolevel debug support for asm9260
ARM: add mach-asm9260
ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf
power: reset: imx-snvs-poweroff: add power off driver for i.mx6
ARM: imx: temporarily remove CONFIG_SOC_FSL from LS1021A
...
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Pull arm64 updates from Will Deacon:
"Here's the usual mixed bag of arm64 updates, also including some
related EFI changes (Acked by Matt) and the MMU gather range cleanup
(Acked by you).
Changes include:
- support for alternative instruction patching from Andre
- seccomp from Akashi
- some AArch32 instruction emulation, required by the Android folks
- optimisations for exception entry/exit code, cmpxchg, pcpu atomics
- mmu_gather range calculations moved into core code
- EFI updates from Ard, including long-awaited SMBIOS support
- /proc/cpuinfo fixes to align with the format used by arch/arm/
- a few non-critical fixes across the architecture"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (70 commits)
arm64: remove the unnecessary arm64_swiotlb_init()
arm64: add module support for alternatives fixups
arm64: perf: Prevent wraparound during overflow
arm64/include/asm: Fixed a warning about 'struct pt_regs'
arm64: Provide a namespace to NCAPS
arm64: bpf: lift restriction on last instruction
arm64: Implement support for read-mostly sections
arm64: compat: align cacheflush syscall with arch/arm
arm64: add seccomp support
arm64: add SIGSYS siginfo for compat task
arm64: add seccomp syscall for compat task
asm-generic: add generic seccomp.h for secure computing mode 1
arm64: ptrace: allow tracer to skip a system call
arm64: ptrace: add NT_ARM_SYSTEM_CALL regset
arm64: Move some head.text functions to executable section
arm64: jump labels: NOP out NOP -> NOP replacement
arm64: add support to dump the kernel page tables
arm64: Add FIX_HOLE to permanent fixed addresses
arm64: alternatives: fix pr_fmt string for consistency
arm64: vmlinux.lds.S: don't discard .exit.* sections at link-time
...
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This patch fixes the erronous usage of an hexadecimal address in the
example, by replacing it with a decimal address.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull Altera Nios II processor support from Ley Foon Tan:
"Here is the Linux port for Nios II processor (from Altera) arch/nios2/
tree for v3.19.
The patchset has been discussed on the kernel mailing lists since
April and has gone through 6 revisions of review. The additional
changes since then have been mostly further cleanups and fixes when
merged with other trees.
The arch code is in arch/nios2 and one asm-generic change (acked by
Arnd)"
Arnd Bergmann says:
"I've reviewed the architecture port in the past and it looks good in
its latest version"
Acked-by: Arnd Bergmann <arnd@arndb.de>
* tag 'nios2-v3.19-rc1' of git://git.rocketboards.org/linux-socfpga-next: (40 commits)
nios2: Make NIOS2_CMDLINE_IGNORE_DTB depend on CMDLINE_BOOL
nios2: Add missing NR_CPUS to Kconfig
nios2: asm-offsets: Remove unused definition TI_TASK
nios2: Remove write-only struct member from nios2_timer
nios2: Remove unused extern declaration of shm_align_mask
nios2: include linux/type.h in io.h
nios2: move include asm-generic/io.h to end of file
nios2: remove include asm-generic/iomap.h from io.h
nios2: remove unnecessary space before define
nios2: fix error handling of irq_of_parse_and_map
nios2: Use IS_ENABLED instead of #ifdefs to check config symbols
nios2: Build infrastructure
Documentation: Add documentation for Nios2 architecture
MAINTAINERS: Add nios2 maintainer
nios2: ptrace support
nios2: Module support
nios2: Nios2 registers
nios2: Miscellaneous header files
nios2: Cpuinfo handling
nios2: Time keeping
...
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Signed-off-by: Andrew Shewmaker <agshew@gmail.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds a supply regulator to the lp855x platform data to facilitate
powering on/off the 3V rail attached to the controller.
Cc: Stéphane Marchesin <marcheu@chromium.org>
Cc: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Milo Kim <milo.kim@ti.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Pull SCSI updates from James Bottomley:
"This patch is the usual mix of driver updates (srp, ipr, scsi_debug,
NCR5380, fnic, 53c974, ses, wd719x, hpsa, megaraid_sas).
Of those, wd7a9x is new and 53c974 is a rewrite of the old tmscsim
driver and the extensive work by Finn Thain rewrites all the NCR5380
based drivers.
There's also extensive infrastructure updates: a new logging
infrastructure for sense information and a rewrite of the tagged
command queue API and an assortment of minor updates"
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (183 commits)
scsi: set fmt to NULL scsi_extd_sense_format() by default
libsas: remove task_collector mode
wd719x: remove dma_cache_sync call
scsi_debug: add Report supported opcodes+tmfs; Compare and write
scsi_debug: change SCSI command parser to table driven
scsi_debug: add Capacity Changed Unit Attention
scsi_debug: append inject error flags onto scsi_cmnd object
scsi_debug: pinpoint invalid field in sense data
wd719x: Add firmware documentation
wd719x: Introduce Western Digital WD7193/7197/7296 PCI SCSI card driver
eeprom-93cx6: Add (read-only) support for 8-bit mode
esas2r: fix an oversight in setting return value
esas2r: fix an error path in esas2r_ioctl_handler
esas2r: fir error handling in do_fm_api
scsi: add SPC-3 command definitions
scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16
scsi: remove scsi_driver owner field
scsi: move scsi_dispatch_cmd to scsi_lib.c
scsi: stop passing a gfp_mask argument down the command setup path
scsi: remove scsi_next_command
...
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Pull device mapper updates from Mike Snitzer:
- Significant DM thin-provisioning performance improvements to meet
performance requirements that were requested by the Gluster
distributed filesystem.
Specifically, dm-thinp now takes care to aggregate IO that will be
issued to the same thinp block before issuing IO to the underlying
devices. This really helps improve performance on HW RAID6 devices
that have a writeback cache because it avoids RMW in the HW RAID
controller.
- Some stable fixes: fix leak in DM bufio if integrity profiles were
enabled, use memzero_explicit in DM crypt to avoid any potential for
information leak, and a DM cache fix to properly mark a cache block
dirty if it was promoted to the cache via the overwrite optimization.
- A few simple DM persistent data library fixes
- DM cache multiqueue policy block promotion improvements.
- DM cache discard improvements that take advantage of range
(multiblock) discard support in the DM bio-prison. This allows for
much more efficient bulk discard processing (e.g. when mkfs.xfs
discards the entire device).
- Some small optimizations in DM core and RCU deference cleanups
- DM core changes to suspend/resume code to introduce the new internal
suspend/resume interface that the DM thin-pool target now uses to
suspend/resume active thin devices when the thin-pool must
suspend/resume.
This avoids forcing userspace to track all active thin volumes in a
thin-pool when the thin-pool is suspended for the purposes of
metadata or data space resize.
* tag 'dm-3.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (49 commits)
dm crypt: use memzero_explicit for on-stack buffer
dm space map metadata: fix sm_bootstrap_get_count()
dm space map metadata: fix sm_bootstrap_get_nr_blocks()
dm bufio: fix memleak when using a dm_buffer's inline bio
dm cache: fix spurious cell_defer when dealing with partial block at end of device
dm cache: dirty flag was mistakenly being cleared when promoting via overwrite
dm cache: only use overwrite optimisation for promotion when in writeback mode
dm cache: discard block size must be a multiple of cache block size
dm cache: fix a harmless race when working out if a block is discarded
dm cache: when reloading a discard bitset allow for a different discard block size
dm cache: fix some issues with the new discard range support
dm array: if resizing the array is a noop set the new root to the old one
dm: use rcu_dereference_protected instead of rcu_dereference
dm thin: fix pool_io_hints to avoid looking at max_hw_sectors
dm thin: suspend/resume active thin devices when reloading thin-pool
dm: enhance internal suspend and resume interface
dm thin: do not allow thin device activation while pool is suspended
dm: add presuspend_undo hook to target_type
dm: return earlier from dm_blk_ioctl if target doesn't implement .ioctl
dm thin: remove stale 'trim' message in block comment above pool_message
...
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Pull regulator updates from Mark Brown:
"The main thing this time around is support for suspend mode
configuration from DT which will enable some very useful power savings
on systems where we can't rely on the bootloader configuration. We
still don't really support dynamic configuration of this at runtime,
that may come later if there is any demand.
Summary:
- Support for specifying the target regulation mode and voltage
during system suspend via DT, enabling power savings in that mode.
- Reduce the default verbosity of the logging on boot, improving boot
times especially for systems with very large numbers of regulators.
- Lots of cleanups and fixes for Maxim PMIC drivers.
- New driver for Richtek RT5033"
* tag 'regulator-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (62 commits)
regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing
regulator: sky81452: Modify Device Tree structure
regulator: sky81452: Modify Device Tree structure
dt-bindings: Update documentation for "system-power-controller" and fix misspellings
of: Rename "poweroff-source" property to "system-power-controller"
regulator: max77686: Remove support for board files
regulator: max77802: Remove support for board files
regulator: max77802: Fill regulator modes translation callback
regulator: max77802: Document binding for regulator operating modes
regulator: of: Add support for parsing initial and suspend modes
regulator: of: Pass the regulator description in the match table
regulator: of: Add regulator desc param to of_get_regulator_init_data()
regulator: Add mode mapping function to struct regulator_desc
regulator: Document binding for initial and suspend modes
regulator: core: Add PRE_DISABLE notification
regulator: gpio: fix parsing of gpio list
regulator: rpm: add support for RPM-controller SMB208
regulator: da9063: Do not transform local IRQ to virtual
regulator: sky81452: Modify dependent Kconfig symbol
regulator: rt5033: Add RT5033 Regulator device driver
...
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Pull hwmon updates from Guenter Roeck:
"Notable changes:
- new driver for NCT7802Y
- support for TMP435, LM95233, LM95235, NCT6792D, and NXP LM75B
- regulator support for PMBus chips, specifically LTX2978
- support for humidity sensors to iio-hwmon bridge driver
* tag 'hwmon-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (21 commits)
hwmon: (tmp401) Detect TMP435 on all addresses it supports
hwmon: (lm75) Strengthen detect function
hwmon: (gpio-fan) Add a shutdown handler to poweroff the fans
hwmon: (gpio-fan) Allow usage of gpio operations that may sleep
hwmon: (tmp401) Bail out from tmp401_probe() in case of write errors
hwmon: (tmp401) Add support for TI TMP435
hwmon: (lm95234) Add support for LM95233
hwmon: (lm95245) Add support for LM95235
hwmon: (ina2xx) bail-out from ina2xx_probe() in case of configuration errors
hwmon: (nct6775) Add blank lines after declarations
hwmon: (nct6775) Add support for NCT6792D
hwmon: (nct6775) Documentation updates
hwmon: (lm75) Add support for the NXP LM75B
hwmon: Driver for Nuvoton NCT7802Y
hwmon: (ibmpowernv) Convert to module_platform_driver
hwmon: (ibmpowernv) Use platform 'id_table' to probe the device
hwmon: (iio_hwmon) Add support for humidity sensors
hwmon: (ltc2978) Add regulator support
hwmon: (pmbus) Add regulator support
hwmon: (pmbus) add helpers for byte write and read modify write
...
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Pull MFD updates from Lee Jones:
"Changes to the core:
- Honour PLATFORM_DEVID_NONE and PLATFORM_DEVID_AUTO dev IDs
Changes to existing drivers:
- IRQ additions/fixes; axp20x, da9063-core
- Code simplification; i2c-dln2
- Regmap additions/fixes; max77693
- Error checking/handling improvements; dln2, db8500-prcmu
- Bug fixes; dln2, wm8350-core
- DT support/documentation; max77693, max77686, tps65217, twl4030-power,
gpio-tc3589x
- Decouple syscon interface from platform devices
- Use MFD hotplug registration; rtsx_usb, viperboard, hid-sensor-hub
- Regulator fixups; sec-core
- Power Management additions/fixes; rts5227, tc6393xb
- Remove relic/redundant code; ab8500-sysctrl, lpc_sch, max77693-private
- Clean-up/coding style changes; tps65090
- Clk additions/fixes; tc6393xb, tc6387xb, t7l66xb
- Add USB-SPI support; dln2
- Trivial changes; max14577, arizona-spi, lpc_sch, wm8997-tables, wm5102-tables
wm5110-tables, axp20x, atmel-hlcdc, rtsx_pci
New drivers/supported devices:
- axp288 PMIC support added to axp20x
- s2mps13 support added to sec-core
- New support for Diolan DLN-2
- New support for atmel-hlcdc"
* tag 'mfd-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (55 commits)
mfd: rtsx: Add func to split u32 into register
mfd: atmel-hlcdc: Add Kconfig option description and name
mfd: da9063: Get irq base dynamically before registering device
mfd: max14577: Fix obvious typo in company name in copyright
mfd: axp20x: Constify axp20x_acpi_match and rid unused warning
mfd: t7l66xb: prepare/unprepare clocks
mfd: tc6387xb: prepare/unprepare clocks
mfd: dln2: add support for USB-SPI module
mfd: wm5110: Add missing registers for AIF2 channels 3-6
mfd: tc3589x: get rid of static base
mfd: arizona: Document HP_CTRL_1L and HP_CTRL_1R registers
mfd: wm8997: Mark INTERRUPT_STATUS_2_MASK as readable
mfd: tc6393xb: Prepare/unprepare clocks
mfd: tps65090: Fix bonkers indenting strategy
mfd: tc6393xb: Fail ohci suspend if full state restore is required
mfd: lpc_sch: Don't call mfd_remove_devices()
mfd: wm8350-core: Fix probable mask then right shift defect
mfd: ab8500-sysctrl: Drop ab8500_restart
mfd: db8500-prcmu: Provide sane error path values
mfd: db8500-prcmu: Check return of devm_ioremap for error
...
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Pull MMC updates from Ulf Hansson:
"MMC core:
- Consolidation and cleanups.
- Some improvements regarding error handling.
- Increase maximum amount of block devices.
- Use correct OCR mask for SDIO when restoring power.
- Fix prepared requests while doing BKOPS.
- Convert to modern PM ops.
- Add mmc_send_tuning() API and convert some hosts to use it.
MMC host:
- toshsd: New Toshiba PCI SD controller driver.
- sdhci: 64-bit ADMA support.
- sdhci: Some regulator fixes.
- sdhci: HS400 support.
- sdhci: Various fixes cleanups.
- atmel-mci: Modernization and cleanups.
- atmel-mci: Runtime PM support.
- omap_hsmmc: Modernization and cleanups.
- omap_hsmmc: Fix UHS card with DDR50 support.
- dw_mmc: Support for ARM64 and Exynos 7 variant.
- dw_mmc: Add support for IMG Pistachio variant.
- dw_mmc: Various fixes and cleanups.
- mvsdio: DMA fixes.
- mxs-mmc: Modernization and cleanups.
- mxcmmc: Various fixes"
* tag 'mmc-v3.19-1' of git://git.linaro.org/people/ulf.hansson/mmc: (126 commits)
mmc: sdhci-msm: Convert to mmc_send_tuning()
mmc: sdhci-esdhc-imx: Convert to mmc_send_tuning()
mmc: core: Let mmc_send_tuning() to take struct mmc_host* as parameter
mmc: queue: Improve error handling during allocation of bounce buffers
mmc: sdhci-acpi: Add two host capabilities for Intel
mmc: sdhci-pci: Add two host capabilities for BYT
mmc: sdhci-acpi: Add SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
mmc: sdhci-pci: Add SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC to BYT
mmc: atmel-mci: use probe deferring if dma controller is not ready yet
mmc: atmel-mci: stop using specific initcall
mmc: atmel-mci: remove __init/__exit attributes
mmc: atmel-mci: remove useless DMA stuff for non-dt devices
mmc: omap_hsmmc: Fix UHS card with DDR50 support
mmc: core: add core-level function for sending tuning commands
mmc: core: hold SD Clock before CMD11 during Signal
mmc: mxs-mmc: Check for clk_prepare_enable() error
mmc: mxs-mmc: Propagate the real error
mmc: mxs-mmc: No need to do NULL check on 'iores'
mmc: dw_mmc: Add support for IMG Pistachio
mmc: mxs-mmc: Simplify PM hooks
...
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Documentation:
expand explanation of timestamp counter
Test:
new: flag -I requests and prints PKTINFO
new: flag -x prints payload (possibly truncated)
fix: remove pretty print that breaks common flag '-l 1'
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allow reading of timestamps and cmsg at the same time on all relevant
socket families. One use is to correlate timestamps with egress
device, by asking for cmsg IP_PKTINFO.
on AF_INET sockets, call the relevant function (ip_cmsg_recv). To
avoid changing legacy expectations, only do so if the caller sets a
new timestamping flag SOF_TIMESTAMPING_OPT_CMSG.
on AF_INET6 sockets, IPV6_PKTINFO and all other recv cmsg are already
returned for all origins. only change is to set ifindex, which is
not initialized for all error origins.
In both cases, only generate the pktinfo message if an ifindex is
known. This is not the case for ACK timestamps.
The difference between the protocol families is probably a historical
accident as a result of the different conditions for generating cmsg
in the relevant ip(v6)_recv_error function:
ipv4: if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP) {
ipv6: if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL) {
At one time, this was the same test bar for the ICMP/ICMP6
distinction. This is no longer true.
Signed-off-by: Willem de Bruijn <willemb@google.com>
----
Changes
v1 -> v2
large rewrite
- integrate with existing pktinfo cmsg generation code
- on ipv4: only send with new flag, to maintain legacy behavior
- on ipv6: send at most a single pktinfo cmsg
- on ipv6: initialize fields if not yet initialized
The recv cmsg interfaces are also relevant to the discussion of
whether looping packet headers is problematic. For v6, cmsgs that
identify many headers are already returned. This patch expands
that to v4. If it sounds reasonable, I will follow with patches
1. request timestamps without payload with SOF_TIMESTAMPING_OPT_TSONLY
(http://patchwork.ozlabs.org/patch/366967/)
2. sysctl to conditionally drop all timestamps that have payload or
cmsg from users without CAP_NET_RAW.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This takes the tiling info from the connector and
exposes it to userspace, as a blob object in a
connector property.
The contents of the blob is ABI.
v2: add property + function documentation.
v3: move property setup from previous patch.
add boilerplate + fix long line (Daniel)
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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A tile group is an identifier shared by a single monitor,
DisplayID topology has 8 bytes we can use for this, just
use those for now until something else comes up in the
future. We assign these to an idr and use the idr to
tell userspace what connectors are in the same tile group.
DisplayID v1.3 says the serial number must be unique for
displays from the same manufacturer.
v2:
destroy idr (dvdhrm)
add docbook (danvet)
airlied:- not sure how to make docbook add fns to tile group section.
v3: fix missing unlock.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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* pm-runtime: (25 commits)
i2c-omap / PM: Drop CONFIG_PM_RUNTIME from i2c-omap.c
dmaengine / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
drivers: sh / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
e1000e / igb / PM: Eliminate CONFIG_PM_RUNTIME
MMC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
MFD / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
misc / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
media / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
input / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
iio / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
hsi / OMAP / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
i2c-hid / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
drm / exynos / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
gpio / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
hwrandom / exynos / PM: Use CONFIG_PM in #ifdef
block / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
USB / PM: Drop CONFIG_PM_RUNTIME from the USB core
PM: Merge the SET*_RUNTIME_PM_OPS() macros
PM / Kconfig: Do not select PM directly from Kconfig files
PCI / PM: Drop CONFIG_PM_RUNTIME from the PCI core
...
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* pm-cpufreq: (21 commits)
intel_pstate: skip this driver if Sun server has _PPC method
cpufreq: arm_big_little: free OPP table created during ->init()
imx6q: free OPP table created during ->init()
exynos5440: free OPP table created during ->init()
cpufreq-dt: free OPP table created during ->init()
cpufreq-dt: register cooling device from ->ready() callback
cpufreq: Introduce ->ready() callback for cpufreq drivers
cpufreq-dt: pass 'policy->related_cpus' to of_cpufreq_cooling_register()
cpufreq: Fix formatting issues in 'struct cpufreq_driver'
cpufreq: pxa2xx: Add Kconfig entry
cpufreq: Ref the policy object sooner
cpufreq: Kconfig: Remove architecture specific menu entries
cpufreq: pcc: Enable autoload of pcc-cpufreq for ACPI processors
intel_pstate: Add CPUID for BDW-H CPU
intel_pstate: Add support for HWP
x86: Add support for Intel HWP feature detection.
cpufreq: respect the min/max settings from user space
cpufreq: cpufreq-dt: Handle regulator_get_voltage() failure
cpufreq: cpufreq-dt: Improve debug about matching OPP
cpufreq: Loongson1: Add cpufreq driver for Loongson1B
...
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* pm-cpuidle:
cpuidle: add MAINTAINERS entry for ARM Exynos cpuidle driver
drivers: cpuidle: Remove cpuidle-arm64 duplicate error messages
drivers: cpuidle: Add idle-state-name description to ARM idle states
drivers: cpuidle: Add status property to ARM idle states
cpuidle: Invert CPUIDLE_FLAG_TIME_VALID logic
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* device-properties:
leds: leds-gpio: Fix multiple instances registration without 'label' property
leds: leds-gpio: Fix legacy GPIO number case
ACPI / property: Drop size_prop from acpi_dev_get_property_reference()
leds: leds-gpio: Convert gpio_blink_set() to use GPIO descriptors
ACPI / GPIO: Document ACPI GPIO mappings API
net: rfkill: gpio: Add default GPIO driver mappings for ACPI
ACPI / GPIO: Driver GPIO mappings for ACPI GPIOs
input: gpio_keys_polled: Make use of device property API
leds: leds-gpio: Make use of device property API
gpio: Support for unified device properties interface
Driver core: Unified interface for firmware node properties
input: gpio_keys_polled: Add support for GPIO descriptors
leds: leds-gpio: Add support for GPIO descriptors
gpio: sch: Consolidate core and resume banks
gpio / ACPI: Add support for _DSD device properties
misc: at25: Make use of device property API
ACPI: Allow drivers to match using Device Tree compatible property
Driver core: Unified device properties interface for platform firmware
ACPI: Add support for device specific properties
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Conflicts:
drivers/scsi/scsi_debug.c
Agreed and tested resolution to a merge problem between a fix in scsi_debug
and a driver update
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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TMP435 supports a range of I2C addresses, not just 0x4c.
Cc: Patrick Titiano <ptitiano@baylibre.com>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Signed-off-by: John de la Garza <john@jjdev.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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ASoC: Updates for v3.19
Lots and lots of changes this time around, the usual set of driver
updates and a huge bulk of cleanups from Lars-Peter. Probably the most
interesting thing for most users is the Intel driver updates which will
(with some more machine integration work) enable support for newer x86
laptops.
- Conversion of AC'97 drivers to use regmap, bringing us closer to the
removal of the ASoC level I/O code.
- Clean up a lot of old drivers that were open coding things that have
subsequently been implemented in the core.
- Some DAPM performance improvements.
- Removal of the now seldom used CODEC mutex.
- Lots of updates for the newer Intel SoC support, including support
for the DSP and some Cherrytrail and Braswell machine drivers.
- Support for Samsung boards using rt5631 as the CODEC.
- Removal of the obsolete AFEB9260 machine driver.
- Driver support for the TI TS3A227E headset driver used in some
Chrombeooks.
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Johan Hovold
Prarit Bhargava
Johannes Weiner
Laurent Pinchart
Dave Airlie
Linus Torvalds
Ethan Zhao
David S. Miller
Takashi Iwai
Rami Rosen
Andrew Shewmaker
Sean Paul
Zhang Rui
Al Viro
Willem de Bruijn
Rafael J. Wysocki
James Bottomley
Guenter Roeck
John de la Garza