04 Aug, 2016
9 commits
-
Pull media DocBook removal and some fixups from Mauro Carvalho Chehab:
- removal of the media DocBook (since it's all in Sphinx now)
- videobuf2: Fix an allocation regression
- a few fixes related to the CEC drivers
* tag 'media/v4.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] cec: fix off-by-one memset
[media] staging: add MEDIA_SUPPORT dependency
[media] vivid: don't handle CEC_MSG_SET_STREAM_PATH
[media] media: adv7180: Fix broken interrupt register access
[media] vb2: Fix allocation size of dma_parms
[media] vim2m: copy the other colorspace-related fields as well
[media] adv7511: fix VIC autodetect
doc-rst: Remove the media docbook -
Merge even more updates from Andrew Morton:
- dma-mapping API cleanup
- a few cleanups and misc things
- use jump labels in dynamic-debug
* emailed patches from Andrew Morton :
dynamic_debug: add jump label support
jump_label: remove bug.h, atomic.h dependencies for HAVE_JUMP_LABEL
arm: jump label may reference text in __exit
tile: support static_key usage in non-module __exit sections
sparc: support static_key usage in non-module __exit sections
powerpc: add explicit #include for jump label
drivers/media/dvb-frontends/cxd2841er.c: avoid misleading gcc warning
MAINTAINERS: update email and list of Samsung HW driver maintainers
block: remove BLK_DEV_DAX config option
samples/kretprobe: fix the wrong type
samples/kretprobe: convert the printk to pr_info/pr_err
samples/jprobe: convert the printk to pr_info/pr_err
samples/kprobe: convert the printk to pr_info/pr_err
dma-mapping: use unsigned long for dma_attrs
media: mtk-vcodec: remove unused dma_attrs
include/linux/bitmap.h: cleanup
tree-wide: replace config_enabled() with IS_ENABLED()
drivers/fpga/Kconfig: fix build failure -
The addition of jump label support in dynamic_debug caused an unexpected
warning in exactly one file in the kernel:drivers/media/dvb-frontends/cxd2841er.c: In function 'cxd2841er_tune_tc':
include/linux/dynamic_debug.h:134:3: error: 'carrier_offset' may be used uninitialized in this function [-Werror=maybe-uninitialized]
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~~~~~~~~~~~~~~~
drivers/media/dvb-frontends/cxd2841er.c:3177:11: note: 'carrier_offset' was declared here
int ret, carrier_offset;
^~~~~~~~~~~~~~The problem seems to be that the compiler gets confused by the extra
conditionals in static_branch_unlikely, to the point where it can no
longer keep track of which branches have already been taken, and it
doesn't realize that this variable is now always initialized when it
gets used.I have done lots of randconfig kernel builds and could not find any
other file with this behavior, so I assume it's a rare enough glitch
that we don't need to change the jump label support but instead just
work around the warning in the driver.To achieve that, I'm moving the check for the return value into the
switch() statement, which is an obvious transformation, but is enough to
un-confuse the compiler here. The resulting code is not as nice to
read, but at least we retain the behavior of warning if it gets changed
to actually access an uninitialized carrier offset value in the future.Link: http://lkml.kernel.org/r/20160713204342.1221511-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann
Acked-by: Abylay Ospan
Cc: Sergey Kozlov
Cc: Mauro Carvalho Chehab
Cc: Jason Baron
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The dma-mapping core and the implementations do not change the DMA
attributes passed by pointer. Thus the pointer can point to const data.
However the attributes do not have to be a bitfield. Instead unsigned
long will do fine:1. This is just simpler. Both in terms of reading the code and setting
attributes. Instead of initializing local attributes on the stack
and passing pointer to it to dma_set_attr(), just set the bits.2. It brings safeness and checking for const correctness because the
attributes are passed by value.Semantic patches for this change (at least most of them):
virtual patch
virtual context@r@
identifier f, attrs;@@
f(...,
- struct dma_attrs *attrs
+ unsigned long attrs
, ...)
{
...
}@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)and
// Options: --all-includes
virtual patch
virtual context@r@
identifier f, attrs;
type t;@@
t f(..., struct dma_attrs *attrs);@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski
Acked-by: Vineet Gupta
Acked-by: Robin Murphy
Acked-by: Hans-Christian Noren Egtvedt
Acked-by: Mark Salter [c6x]
Acked-by: Jesper Nilsson [cris]
Acked-by: Daniel Vetter [drm]
Reviewed-by: Bart Van Assche
Acked-by: Joerg Roedel [iommu]
Acked-by: Fabien Dessenne [bdisp]
Reviewed-by: Marek Szyprowski [vb2-core]
Acked-by: David Vrabel [xen]
Acked-by: Konrad Rzeszutek Wilk [xen swiotlb]
Acked-by: Joerg Roedel [iommu]
Acked-by: Richard Kuo [hexagon]
Acked-by: Geert Uytterhoeven [m68k]
Acked-by: Gerald Schaefer [s390]
Acked-by: Bjorn Andersson
Acked-by: Hans-Christian Noren Egtvedt [avr32]
Acked-by: Vineet Gupta [arc]
Acked-by: Robin Murphy [arm64 and dma-iommu]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The local variable dma_attrs is set but never read.
Link: http://lkml.kernel.org/r/1468399300-5399-1-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The use of config_enabled() against config options is ambiguous. In
practical terms, config_enabled() is equivalent to IS_BUILTIN(), but the
author might have used it for the meaning of IS_ENABLED(). Using
IS_ENABLED(), IS_BUILTIN(), IS_MODULE() etc. makes the intention
clearer.This commit replaces config_enabled() with IS_ENABLED() where possible.
This commit is only touching bool config options.I noticed two cases where config_enabled() is used against a tristate
option:- config_enabled(CONFIG_HWMON)
[ drivers/net/wireless/ath/ath10k/thermal.c ]- config_enabled(CONFIG_BACKLIGHT_CLASS_DEVICE)
[ drivers/gpu/drm/gma500/opregion.c ]I did not touch them because they should be converted to IS_BUILTIN()
in order to keep the logic, but I was not sure it was the authors'
intention.Link: http://lkml.kernel.org/r/1465215656-20569-1-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada
Acked-by: Kees Cook
Cc: Stas Sergeev
Cc: Matt Redfearn
Cc: Joshua Kinard
Cc: Jiri Slaby
Cc: Bjorn Helgaas
Cc: Borislav Petkov
Cc: Markos Chandras
Cc: "Dmitry V. Levin"
Cc: yu-cheng yu
Cc: James Hogan
Cc: Brian Gerst
Cc: Johannes Berg
Cc: Peter Zijlstra
Cc: Al Viro
Cc: Will Drewry
Cc: Nikolay Martynov
Cc: Huacai Chen
Cc: "H. Peter Anvin"
Cc: Thomas Gleixner
Cc: Daniel Borkmann
Cc: Leonid Yegoshin
Cc: Rafal Milecki
Cc: James Cowgill
Cc: Greg Kroah-Hartman
Cc: Ralf Baechle
Cc: Alex Smith
Cc: Adam Buchbinder
Cc: Qais Yousef
Cc: Jiang Liu
Cc: Mikko Rapeli
Cc: Paul Gortmaker
Cc: Denys Vlasenko
Cc: Brian Norris
Cc: Hidehiro Kawai
Cc: "Luis R. Rodriguez"
Cc: Andy Lutomirski
Cc: Ingo Molnar
Cc: Dave Hansen
Cc: "Kirill A. Shutemov"
Cc: Roland McGrath
Cc: Paul Burton
Cc: Kalle Valo
Cc: Viresh Kumar
Cc: Tony Wu
Cc: Huaitong Han
Cc: Sumit Semwal
Cc: Alexei Starovoitov
Cc: Juergen Gross
Cc: Jason Cooper
Cc: "David S. Miller"
Cc: Oleg Nesterov
Cc: Andrea Gelmini
Cc: David Woodhouse
Cc: Marc Zyngier
Cc: Rabin Vincent
Cc: "Maciej W. Rozycki"
Cc: David Daney
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
While building m32r allmodconfig the build is failing with the error:
ERROR: "bad_dma_ops" [drivers/fpga/zynq-fpga.ko] undefined!
Xilinx Zynq FPGA is using DMA but there was no dependency while
building.Link: http://lkml.kernel.org/r/1464346526-13913-1-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Sudip Mukherjee
Acked-by: Moritz Fischer
Cc: Alan Tull
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This reverts commit 16468c783cb4cf72475dcda23fabecb4a4bb0e17.
Bisection showed that it was the root cause for a resume hang on a
bog-standard all-Intel laptop (Sony Vaio Pro 11), and reverting fixes
the hang.Signed-off-by: Linus Torvalds
-
This clearly had never gotten tested, probably because you need a fairly
minimal configuration in order to disable DEBUG_FS (several other
options select it).The dummy inline functions that were used for the no-DEBUG_FS case were
missing the argument names in the declarations.Fixes: 1dac891c1c95 ("drm/i915: Register debugfs interface last")
Reported-and-tested-by: Jörg Otte
Signed-off-by: Linus Torvalds
03 Aug, 2016
31 commits
-
Pull networking fixes from David Miller:
1) Fix several cases of missing of_node_put() calls in various
networking drivers. From Peter Chen.2) Don't try to remove unconfigured VLANs in qed driver, from Yuval
Mintz.3) Unbalanced locking in TIPC error handling, from Wei Yongjun.
4) Fix lockups in CPDMA driver, from Grygorii Strashko.
5) More MACSEC refcount et al fixes, from Sabrina Dubroca.
6) Fix MAC address setting in r8169 during runtime suspend, from
Chun-Hao Lin.7) Various printf format specifier fixes, from Heinrich Schuchardt.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
qed: Fail driver load in 100g MSI mode.
ethernet: ti: davinci_emac: add missing of_node_put after calling of_parse_phandle
ethernet: stmicro: stmmac: add missing of_node_put after calling of_parse_phandle
ethernet: stmicro: stmmac: dwmac-socfpga: add missing of_node_put after calling of_parse_phandle
ethernet: renesas: sh_eth: add missing of_node_put after calling of_parse_phandle
ethernet: renesas: ravb_main: add missing of_node_put after calling of_parse_phandle
ethernet: marvell: pxa168_eth: add missing of_node_put after calling of_parse_phandle
ethernet: marvell: mvpp2: add missing of_node_put after calling of_parse_phandle
ethernet: marvell: mvneta: add missing of_node_put after calling of_parse_phandle
ethernet: hisilicon: hns: hns_dsaf_main: add missing of_node_put after calling of_parse_phandle
ethernet: hisilicon: hns: hns_dsaf_mac: add missing of_node_put after calling of_parse_phandle
ethernet: cavium: octeon: add missing of_node_put after calling of_parse_phandle
ethernet: aurora: nb8800: add missing of_node_put after calling of_parse_phandle
ethernet: arc: emac_main: add missing of_node_put after calling of_parse_phandle
ethernet: apm: xgene: add missing of_node_put after calling of_parse_phandle
ethernet: altera: add missing of_node_put
8139too: fix system hang when there is a tx timeout event.
qed: Fix error return code in qed_resc_alloc()
net: qlcnic: avoid superfluous assignement
dsa: b53: remove redundant if
... -
Merge yet more updates from Andrew Morton:
- the rest of ocfs2
- various hotfixes, mainly MM
- quite a bit of misc stuff - drivers, fork, exec, signals, etc.
- printk updates
- firmware
- checkpatch
- nilfs2
- more kexec stuff than usual
- rapidio updates
- w1 things
* emailed patches from Andrew Morton : (111 commits)
ipc: delete "nr_ipc_ns"
kcov: allow more fine-grained coverage instrumentation
init/Kconfig: add clarification for out-of-tree modules
config: add android config fragments
init/Kconfig: ban CONFIG_LOCALVERSION_AUTO with allmodconfig
relay: add global mode support for buffer-only channels
init: allow blacklisting of module_init functions
w1:omap_hdq: fix regression
w1: add helper macro module_w1_family
w1: remove need for ida and use PLATFORM_DEVID_AUTO
rapidio/switches: add driver for IDT gen3 switches
powerpc/fsl_rio: apply changes for RIO spec rev 3
rapidio: modify for rev.3 specification changes
rapidio: change inbound window size type to u64
rapidio/idt_gen2: fix locking warning
rapidio: fix error handling in mbox request/release functions
rapidio/tsi721_dma: advance queue processing from transfer submit call
rapidio/tsi721: add messaging mbox selector parameter
rapidio/tsi721: add PCIe MRRS override parameter
rapidio/tsi721_dma: add channel mask and queue size parameters
... -
Pull Ceph updates from Ilya Dryomov:
"The highlights are:- RADOS namespace support in libceph and CephFS (Zheng Yan and
myself). The stopgaps added in 4.5 to deny access to inodes in
namespaces are removed and CEPH_FEATURE_FS_FILE_LAYOUT_V2 feature
bit is now fully supported- A large rework of the MDS cap flushing code (Zheng Yan)
- Handle some of ->d_revalidate() in RCU mode (Jeff Layton). We were
overly pessimistic before, bailing at the first sight of LOOKUP_RCUOn top of that we've got a few CephFS bug fixes, a couple of cleanups
and Arnd's workaround for a weird genksyms issue"* tag 'ceph-for-4.8-rc1' of git://github.com/ceph/ceph-client: (34 commits)
ceph: fix symbol versioning for ceph_monc_do_statfs
ceph: Correctly return NXIO errors from ceph_llseek
ceph: Mark the file cache as unreclaimable
ceph: optimize cap flush waiting
ceph: cleanup ceph_flush_snaps()
ceph: kick cap flushes before sending other cap message
ceph: introduce an inode flag to indicates if snapflush is needed
ceph: avoid sending duplicated cap flush message
ceph: unify cap flush and snapcap flush
ceph: use list instead of rbtree to track cap flushes
ceph: update types of some local varibles
ceph: include 'follows' of pending snapflush in cap reconnect message
ceph: update cap reconnect message to version 3
ceph: mount non-default filesystem by name
libceph: fsmap.user subscription support
ceph: handle LOOKUP_RCU in ceph_d_revalidate
ceph: allow dentry_lease_is_valid to work under RCU walk
ceph: clear d_fsinfo pointer under d_lock
ceph: remove ceph_mdsc_lease_release
ceph: don't use ->d_time
... -
Commit e93762bbf681 ("w1: masters: omap_hdq: add support for 1-wire
mode") added a statement to clear the hdq_irqstatus flags in
hdq_read_byte().If the hdq reading process is scheduled slowly or interrupts are
disabled for a while the hardware read activity might already be
finished on entry of hdq_read_byte(). And hdq_isr() already has set the
hdq_irqstatus to 0x6 (can be seen in debug mode) denoting that both, the
TXCOMPLETE and RXCOMPLETE interrupts occurred in parallel.This means there is no need to wait and the hdq_read_byte() can just
read the byte from the hdq controller.By resetting hdq_irqstatus to 0 the read process is forced to be always
waiting again (because the if statement always succeeds) but the
hardware will not issue another RXCOMPLETE interrupt. This results in a
false timeout.After such a situation the hdq bus hangs.
Link: http://lkml.kernel.org/r/b724765f87ad276a69625bc19806c8c8844c4590.1469513669.git.hns@goldelico.com
Signed-off-by: H. Nikolaus Schaller
Cc: Evgeniy Polyakov
Cc: Greg Kroah-Hartman
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The helper macro module_w1_family can be used in module drivers that
only register a w1 driver in their module init functions. Add this
macro and use it in all applicable drivers.Link: http://lkml.kernel.org/r/20160531204313.20979-2-afd@ti.com
Signed-off-by: Andrew F. Davis
Acked-by: Evgeniy Polyakov
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
PLATFORM_DEVID_AUTO can be used to have the platform core assign a
unique ID instead of manually creating one with IDA. Do this in all
applicable drivers.Link: http://lkml.kernel.org/r/20160531204313.20979-1-afd@ti.com
Signed-off-by: Andrew F. Davis
Acked-by: Evgeniy Polyakov
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add RapidIO switch driver for IDT Gen3 switch devices: RXS1632 and
RXS2448.[alexandre.bounine@idt.com: fixup for original driver patch]
Link: http://lkml.kernel.org/r/1469137596-18241-1-git-send-email-alexandre.bounine@idt.com
Link: http://lkml.kernel.org/r/1469125134-16523-14-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Tested-by: Barry Wood
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Implement changes made in RapidIO specification rev.3 to LP-Serial Physical
Layer register definitions:- use per-port register offset calculations based on LP-Serial Extended
Features Block (EFB) Register Map type (I or II) with different
per-port offset step (0x20 vs 0x40 respectfully).- remove deprecated Parallel Physical layer definitions and related
code.[alexandre.bounine@idt.com: fix DocBook warning for gen3 update]
Link: http://lkml.kernel.org/r/1469191173-19338-1-git-send-email-alexandre.bounine@idt.com
Link: http://lkml.kernel.org/r/1469125134-16523-12-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Tested-by: Barry Wood
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Current definition of map_inb() mport operations callback uses u32 type
to specify required inbound window (IBW) size. This is limiting factor
because existing hardware - tsi721 and fsl_rio, both support IBW size up
to 16GB.Changing type of size parameter to u64 to allow IBW size configurations
larger than 4GB.[alexandre.bounine@idt.com: remove compiler warning about size of constant]
Link: http://lkml.kernel.org/r/20160802184856.2566-1-alexandre.bounine@idt.com
Link: http://lkml.kernel.org/r/1469125134-16523-11-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Benjamin Herrenschmidt
Cc: Michael Ellerman
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix lockdep warning during device probing: move sysfs initialization out
of code protected by a spin lock.Link: http://lkml.kernel.org/r/1469125134-16523-10-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add checking for error code returned by HW-specific mbox open routines.
Ensure that resources are properly release if failed.This patch is applicable to kernel versions starting from v2.6.15.
Link: http://lkml.kernel.org/r/1469125134-16523-9-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add advancing transfer queue immediately from transfer submit call. DMA
performance improvement: This will start transfer without waiting for
'issue_pending' command if there is no DMA transfer in progress.Link: http://lkml.kernel.org/r/1469125134-16523-8-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add module parameter to allow load time configuration of available
RapidIO messaging mailboxes (MBOX1 - MBOX4).Having a messaging MBOX selector mask allows to define which MBOXes are
controlled by the mport device driver and reserve some of them for
direct use by other drivers.Link: http://lkml.kernel.org/r/1469125134-16523-7-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Tested-by: Barry Wood
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add PCIe Maximum Read Request Size (MRRS) adjustment parameter to allow
users to override configuration register value set during PCIe bus
initialization.Performance of Tsi721 device as PCIe bus master can be improved if MRRS
is set to its maximum value (4096 bytes). Some platforms have
limitations for supported MRRS and therefore the default value should be
preserved, unless it is known that given platform supports full set of
MRRS values defined by PCI Express specification.Link: http://lkml.kernel.org/r/1469125134-16523-6-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add module parameters to allow load time configuration of DMA channels.
Depending on application, performance of DMA data transfers can benefit
from adjusted sizes of buffer descriptor ring and/or transaction
requests queue.Having HW DMA channel selector mask allows to define which channels
(from seven available) are controlled by the mport device driver and
reserve some of them for direct use by other drivers.Link: http://lkml.kernel.org/r/1469125134-16523-5-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Tested-by: Barry Wood
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Update return value description for rio_dma_prep_... functions to
include error-valued pointer that can be returned by HW mport device
drivers. Return values from these functions must be checked using
IS_ERR_OR_NULL macro.This patch is applicable to kernel versions starting from v4.6-rc1.
Link: http://lkml.kernel.org/r/1469125134-16523-4-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Patch series "RapidIO subsystem updates".
This set of patches contains RapidIO subsystem fixes and updates that
have been made since kernel v4.6. The most significant update brings
changes related to the latest revision of RapidIO specification
(rev.3.x) and introduction of next generation of RapidIO switches by IDT
(RXS1632 and RXS2448).This patch (of 13):
This is RapidIO part of the original patch submitted by Joe Perches.
(see: https://lkml.org/lkml/2016/3/5/19)Since commit 3cab1e711297 ("lib/vsprintf: refactor duplicate code
to special_hex_number()") %pa uses have been output with a 0x prefix.These 0x prefixes in the formats are unnecessary.
Link: http://lkml.kernel.org/r/1469125134-16523-2-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Joe Perches
Signed-off-by: Alexandre Bounine
Cc: Matt Porter
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add channelized messaging driver to support native RapidIO messaging
exchange between multiple senders/recipients on devices that use kernel
RapidIO subsystem services.This device driver is the result of collaboration within the RapidIO.org
Software Task Group (STG) between Texas Instruments, Prodrive
Technologies, Nokia Networks, BAE and IDT. Additional input was
received from other members of RapidIO.org.The objective was to create a character mode driver interface which
exposes messaging capabilities of RapidIO endpoint devices (mports)
directly to applications, in a manner that allows the numerous and
varied RapidIO implementations to interoperate.This char mode device driver allows user-space applications to setup
messaging communication channels using single shared RapidIO messaging
mailbox.By default this driver uses RapidIO MBOX_1 (MBOX_0 is reserved for use by
RIONET Ethernet emulation driver).[weiyj.lk@gmail.com: rapidio/rio_cm: fix return value check in riocm_init()]
Link: http://lkml.kernel.org/r/1469198221-21970-1-git-send-email-alexandre.bounine@idt.com
Link: http://lkml.kernel.org/r/1468952862-18056-1-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine
Tested-by: Barry Wood
Cc: Matt Porter
Cc: Aurelien Jacquiot
Cc: Andre van Herk
Cc: Barry Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some systems are memory constrained but they need to load very large
firmwares. The firmware subsystem allows drivers to request this
firmware be loaded from the filesystem, but this requires that the
entire firmware be loaded into kernel memory first before it's provided
to the driver. This can lead to a situation where we map the firmware
twice, once to load the firmware into kernel memory and once to copy the
firmware into the final resting place.This creates needless memory pressure and delays loading because we have
to copy from kernel memory to somewhere else. Let's add a
request_firmware_into_buf() API that allows drivers to request firmware
be loaded directly into a pre-allocated buffer. This skips the
intermediate step of allocating a buffer in kernel memory to hold the
firmware image while it's read from the filesystem. It also requires
that drivers know how much memory they'll require before requesting the
firmware and negates any benefits of firmware caching because the
firmware layer doesn't manage the buffer lifetime.For a 16MB buffer, about half the time is spent performing a memcpy from
the buffer to the final resting place. I see loading times go from
0.081171 seconds to 0.047696 seconds after applying this patch. Plus
the vmalloc pressure is reduced.This is based on a patch from Vikram Mulukutla on codeaurora.org:
https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.18/commit/drivers/base/firmware_class.c?h=rel/msm-3.18&id=0a328c5f6cd999f5c591f172216835636f39bcb5Link: http://lkml.kernel.org/r/20160607164741.31849-4-stephen.boyd@linaro.org
Signed-off-by: Stephen Boyd
Cc: Mimi Zohar
Cc: Vikram Mulukutla
Cc: Mark Brown
Cc: Ming Lei
Cc: Greg Kroah-Hartman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some low memory systems with complex peripherals cannot afford to have
the relatively large firmware images taking up valuable memory during
suspend and resume. Change the internal implementation of
firmware_class to disallow caching based on a configurable option. In
the near future, variants of request_firmware will take advantage of
this feature.Link: http://lkml.kernel.org/r/20160607164741.31849-3-stephen.boyd@linaro.org
[stephen.boyd@linaro.org: Drop firmware_desc design and use flags]
Signed-off-by: Vikram Mulukutla
Signed-off-by: Stephen Boyd
Cc: Mimi Zohar
Cc: Mark Brown
Cc: Ming Lei
Cc: Greg Kroah-Hartman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some systems are memory constrained but they need to load very large
firmwares. The firmware subsystem allows drivers to request this
firmware be loaded from the filesystem, but this requires that the
entire firmware be loaded into kernel memory first before it's provided
to the driver. This can lead to a situation where we map the firmware
twice, once to load the firmware into kernel memory and once to copy the
firmware into the final resting place.This design creates needless memory pressure and delays loading because
we have to copy from kernel memory to somewhere else. This patch sets
adds support to the request firmware API to load the firmware directly
into a pre-allocated buffer, skipping the intermediate copying step and
alleviating memory pressure during firmware loading. The drawback is
that we can't use the firmware caching feature because the memory for
the firmware cache is not managed by the firmware layer.This patch (of 3):
We use similar structured code to read and write the kmapped firmware
pages. The only difference is read copies from the kmap region and
write copies to it. Consolidate this into one function to reduce
duplication.Link: http://lkml.kernel.org/r/20160607164741.31849-2-stephen.boyd@linaro.org
Signed-off-by: Stephen Boyd
Cc: Vikram Mulukutla
Cc: Mimi Zohar
Cc: Mark Brown
Cc: Ming Lei
Cc: Greg Kroah-Hartman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move the DRIVER_NAME macro definition before the first usage site and
fix build error.Link: http://lkml.kernel.org/r/20160801163937.GA28119@nazgul.tnic
Signed-off-by: Borislav Petkov
Reported-by: kbuild test robot
Cc: Jean-Christophe Plagniol-Villard
Cc: Tomi Valkeinen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
kernel.h header doesn't directly use dynamic debug, instead we can
include it in module.c (which used it via kernel.h). printk.h only uses
it if CONFIG_DYNAMIC_DEBUG is on, changing the inclusion to only happen
in that case.Link: http://lkml.kernel.org/r/1468429793-16917-1-git-send-email-luisbg@osg.samsung.com
[luisbg@osg.samsung.com: include dynamic_debug.h in drb_int.h]
Link: http://lkml.kernel.org/r/1468447828-18558-2-git-send-email-luisbg@osg.samsung.com
Signed-off-by: Luis de Bethencourt
Cc: Rusty Russell
Cc: Hidehiro Kawai
Cc: Borislav Petkov
Cc: Michal Nazarewicz
Cc: Rasmus Villemoes
Cc: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pull i915 drm fixes from Dave Airlie:
"These are the two fixes from Ville for the bug you are seeing on your
HSW laptop.They pretty much disable PSR in some cases where the panel reports a
setup time that would cause issues, like you seem to have"* tag 'drm-psr-fixes-for-v4.8' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Check PSR setup time vs. vblank length
drm/dp: Add drm_dp_psr_setup_time() -
There was only one use of __initdata_refok and __exit_refok
__init_refok was used 46 times against 82 for __ref.
Those definitions are obsolete since commit 312b1485fb50 ("Introduce new
section reference annotations tags: __ref, __refdata, __refconst")This patch removes the following compatibility definitions and replaces
them treewide./* compatibility defines */
#define __init_refok __ref
#define __initdata_refok __refdata
#define __exit_refok __refI can also provide separate patches if necessary.
(One patch per tree and check in 1 month or 2 to remove old definitions)[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/1466796271-3043-1-git-send-email-fabf@skynet.be
Signed-off-by: Fabian Frederick
Cc: Ingo Molnar
Cc: Sam Ravnborg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When alloc_disk(0) is used the ->major number is completely ignored.
All devices are allocated with a major of BLOCK_EXT_MAJOR.So remove registration and deregistration of 'major'.
Link: http://lkml.kernel.org/r/20160602064318.4403.49955.stgit@noble
Signed-off-by: NeilBrown
Cc: Keith Busch
Cc: Jens Axboe
Cc: Maxim Levitsky
Cc: Greg Kroah-Hartman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pull PCI updates from Bjorn Helgaas:
"Highlights:- ARM64 support for ACPI host bridges
- new drivers for Axis ARTPEC-6 and Marvell Aardvark
- new pci_alloc_irq_vectors() interface for MSI-X, MSI, legacy INTx
- pci_resource_to_user() cleanup (more to come)
Detailed summary:
Enumeration:
- Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
- Add parent device field to ECAM struct pci_config_window (Jayachandran C)
- Add generic MCFG table handling (Tomasz Nowicki)
- Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
- Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)Resource management:
- Add devm_request_pci_bus_resources() (Bjorn Helgaas)
- Unify pci_resource_to_user() declarations (Bjorn Helgaas)
- Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
- Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
- Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
- Ignore write combining when mapping I/O port space (Bjorn Helgaas)
- Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
- Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
- Support I/O resources when parsing host bridge resources (Jayachandran C)
- Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
- Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
- Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
- Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
- Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
- Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
- Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
- Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)PCI device hotplug:
- Allow additional bus numbers for hotplug bridges (Keith Busch)
- Ignore interrupts during D3cold (Lukas Wunner)Power management:
- Enforce type casting for pci_power_t (Andy Shevchenko)
- Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
- Put PCIe ports into D3 during suspend (Mika Westerberg)
- Power on bridges before scanning new devices (Mika Westerberg)
- Runtime resume bridge before rescan (Mika Westerberg)
- Add runtime PM support for PCIe ports (Mika Westerberg)
- Remove redundant check of pcie_set_clkpm (Shawn Lin)Virtualization:
- Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
- Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
- Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
- Add ACS quirk for Solarflare SFC9220 (Edward Cree)MSI:
- Fix PCI_MSI dependencies (Arnd Bergmann)
- Add pci_msix_desc_addr() helper (Christoph Hellwig)
- Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
- Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
- Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
- Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)Error Handling:
- Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
- Remove DPC tristate module option (Keith Busch)
- Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)Generic host bridge driver:
- Select IRQ_DOMAIN (Arnd Bergmann)
- Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)ACPI host bridge driver:
- Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
- Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
- Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
- Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)Altera host bridge driver:
- Check link status before retrain link (Ley Foon Tan)
- Poll for link up status after retraining the link (Ley Foon Tan)Axis ARTPEC-6 host bridge driver:
- Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
- Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
- Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)Intel VMD host bridge driver:
- Use lock save/restore in interrupt enable path (Jon Derrick)
- Select device dma ops to override (Keith Busch)
- Initialize list item in IRQ disable (Keith Busch)
- Use x86_vector_domain as parent domain (Keith Busch)
- Separate MSI and MSI-X vector sharing (Keith Busch)Marvell Aardvark host bridge driver:
- Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
- Add Aardvark PCI host controller driver (Thomas Petazzoni)
- Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)Microsoft Hyper-V host bridge driver:
- Fix interrupt cleanup path (Cathy Avery)
- Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
- Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)NVIDIA Tegra host bridge driver:
- Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
- Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
- Use lower-case hex consistently for register definitions (Thierry Reding)
- Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
- Stop setting pcibios_min_mem (Thierry Reding)Renesas R-Car host bridge driver:
- Drop gen2 dummy I/O port region (Bjorn Helgaas)TI DRA7xx host bridge driver:
- Fix return value in case of error (Christophe JAILLET)Xilinx AXI host bridge driver:
- Fix return value in case of error (Christophe JAILLET)Miscellaneous:
- Make bus_attr_resource_alignment static (Ben Dooks)
- Include for isa_dma_bridge_buggy (Ben Dooks)
- MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
- Make host bridge drivers explicitly non-modular (Paul Gortmaker)"* tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (125 commits)
PCI: xgene: Make explicitly non-modular
PCI: thunder-pem: Make explicitly non-modular
PCI: thunder-ecam: Make explicitly non-modular
PCI: tegra: Make explicitly non-modular
PCI: rcar-gen2: Make explicitly non-modular
PCI: rcar: Make explicitly non-modular
PCI: mvebu: Make explicitly non-modular
PCI: layerscape: Make explicitly non-modular
PCI: keystone: Make explicitly non-modular
PCI: hisi: Make explicitly non-modular
PCI: generic: Make explicitly non-modular
PCI: designware-plat: Make it explicitly non-modular
PCI: artpec6: Make explicitly non-modular
PCI: armada8k: Make explicitly non-modular
PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
PCI: Add ACS quirk for Solarflare SFC9220
arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
PCI: aardvark: Add Aardvark PCI host controller driver
dt-bindings: add DT binding for the Aardvark PCIe controller
PCI: tegra: Program PADS_REFCLK_CFG* registers with per-SoC values
... -
Bspec says:
"Restriction : SRD must not be enabled when the PSR Setup time from DPCD
00071h is greater than the time for vertical blank minus one line."Let's check for that and disallow PSR if we exceed the limit.
Cc: Daniel Vetter
Reviewed-by: Daniel Vetter
Signed-off-by: Ville Syrjälä
Signed-off-by: Dave Airlie -
Add a small helper to parse the PSR setup time from the DPCD PSR
capabilities and return the value in microseconds.v2: Don't waste so many bytes on the psr_setup_time_us[] table
Cc: Daniel Vetter
Reviewed-by: Daniel Vetter
Signed-off-by: Ville Syrjälä
Signed-off-by: Dave Airlie -
Pull MTD updates from Brian Norris:
"NAND:Quoting Boris:
'This pull request contains only one notable change:
- Addition of the MTK NAND controller driverAnd a bunch of specific NAND driver improvements/fixes. Here are the
changes that are worth mentioning:
- A few fixes/improvements for the xway NAND controller driver
- A few fixes for the sunxi NAND controller driver
- Support for DMA in the sunxi NAND driver
- Support for the sunxi NAND controller IP embedded in A23/A33 SoCs
- Addition for bitflips detection in erased pages to the brcmnand driver
- Support for new brcmnand IPs
- Update of the OMAP-GPMC binding to support DMA channel description'In addition, some small fixes around error handling, etc., as well
as one long-standing corner case issue (2.6.20, I think?) with
writing 1 byte less than a page.NOR:
- rework some error handling on reads and writes, so we can better
handle (for instance) SPI controllers which have limitations on
their maximum transfer size- add new Cadence Quad SPI flash controller driver
- add new Atmel QSPI flash controller driver
- add new Hisilicon SPI flash controller driver
- support a few new flash, and update supported features on others
- fix the logic used for detecting a fully-unlocked flash
And other miscellaneous small fixes"
* tag 'for-linus-20160801' of git://git.infradead.org/linux-mtd: (60 commits)
mtd: spi-nor: don't build Cadence QuadSPI on non-ARM
mtd: mtk-nor: remove duplicated include from mtk-quadspi.c
mtd: nand: fix bug writing 1 byte less than page size
mtd: update description of MTD_BCM47XXSFLASH symbol
mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller
mtd: spi-nor: Bindings for Cadence Quad SPI Flash Controller driver
mtd: nand: brcmnand: Change BUG_ON in brcmnand_send_cmd
mtd: pmcmsp-flash: Allocating too much in init_msp_flash()
mtd: maps: sa1100-flash: potential NULL dereference
mtd: atmel-quadspi: add driver for Atmel QSPI controller
mtd: nand: omap2: fix return value check in omap_nand_probe()
Documentation: atmel-quadspi: add binding file for Atmel QSPI driver
mtd: spi-nor: add hisilicon spi-nor flash controller driver
mtd: spi-nor: support dual, quad, and WP for Gigadevice
mtd: spi-nor: Added support for n25q00a.
memory: Update dependency of IFC for Layerscape
mtd: nand: jz4780: Update MODULE_AUTHOR email address
mtd: nand: sunxi: prevent a small memory leak
mtd: nand: sunxi: add reset line support
mtd: nand: sunxi: update DT bindings
... -
Pull KVM updates from Paolo Bonzini:
- ARM: GICv3 ITS emulation and various fixes. Removal of the
old VGIC implementation.- s390: support for trapping software breakpoints, nested
virtualization (vSIE), the STHYI opcode, initial extensions
for CPU model support.- MIPS: support for MIPS64 hosts (32-bit guests only) and lots
of cleanups, preliminary to this and the upcoming support for
hardware virtualization extensions.- x86: support for execute-only mappings in nested EPT; reduced
vmexit latency for TSC deadline timer (by about 30%) on Intel
hosts; support for more than 255 vCPUs.- PPC: bugfixes.
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (302 commits)
KVM: PPC: Introduce KVM_CAP_PPC_HTM
MIPS: Select HAVE_KVM for MIPS64_R{2,6}
MIPS: KVM: Reset CP0_PageMask during host TLB flush
MIPS: KVM: Fix ptr->int cast via KVM_GUEST_KSEGX()
MIPS: KVM: Sign extend MFC0/RDHWR results
MIPS: KVM: Fix 64-bit big endian dynamic translation
MIPS: KVM: Fail if ebase doesn't fit in CP0_EBase
MIPS: KVM: Use 64-bit CP0_EBase when appropriate
MIPS: KVM: Set CP0_Status.KX on MIPS64
MIPS: KVM: Make entry code MIPS64 friendly
MIPS: KVM: Use kmap instead of CKSEG0ADDR()
MIPS: KVM: Use virt_to_phys() to get commpage PFN
MIPS: Fix definition of KSEGX() for 64-bit
KVM: VMX: Add VMCS to CPU's loaded VMCSs before VMPTRLD
kvm: x86: nVMX: maintain internal copy of current VMCS
KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE
KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures
KVM: arm64: vgic-its: Simplify MAPI error handling
KVM: arm64: vgic-its: Make vgic_its_cmd_handle_mapi similar to other handlers
KVM: arm64: vgic-its: Turn device_id validation into generic ID validation
...
