Currently, each regbuf is allocated and DMA mapped at the same time.
This is done during transport creation.
When a device driver is unloaded, every DMA-mapped buffer in use by
a transport has to be unmapped, and then remapped to the new
device if the driver is loaded again. Remapping will have to be done
_after_ the connect worker has set up the new device.
But there's an ordering problem:
call_allocate, which invokes xprt_rdma_allocate which calls
rpcrdma_alloc_regbuf to allocate Send buffers, happens _before_
the connect worker can run to set up the new device.
Instead, at transport creation, allocate each buffer, but leave it
unmapped. Once the RPC carries these buffers into ->send_request, by
which time a transport connection should have been established,
check to see that the RPC's buffers have been DMA mapped. If not,
map them there.
When device driver unplug support is added, it will simply unmap all
the transport's regbufs, but it doesn't have to deallocate the
underlying memory.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
The use of DMA_BIDIRECTIONAL is discouraged by DMA-API.txt.
Fortunately, xprtrdma now knows which direction I/O is going as
soon as it allocates each regbuf.
The RPC Call and Reply buffers are no longer the same regbuf. They
can each be labeled correctly now. The RPC Reply buffer is never
part of either a Send or Receive WR, but it can be part of Reply
chunk, which is mapped and registered via ->ro_map . So it is not
DMA mapped when it is allocated (DMA_NONE), to avoid a double-
mapping.
Since Receive buffers are no longer DMA_BIDIRECTIONAL and their
contents are never modified by the host CPU, DMA-API-HOWTO.txt
suggests that a DMA sync before posting each buffer should be
unnecessary. (See my_card_interrupt_handler).
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Commit 949317464b ("xprtrdma: Limit number of RDMA segments in
RPC-over-RDMA headers") capped the number of chunks that may appear
in RPC-over-RDMA headers. The maximum header size can be estimated
and fixed to avoid allocating buffer space that is never used.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
RPC-over-RDMA needs to separate its RPC call and reply buffers.
o When an RPC Call is sent, rq_snd_buf is DMA mapped for an RDMA
Send operation using DMA_TO_DEVICE
o If the client expects a large RPC reply, it DMA maps rq_rcv_buf
as part of a Reply chunk using DMA_FROM_DEVICE
The two mappings are for data movement in opposite directions.
DMA-API.txt suggests that if these mappings share a DMA cacheline,
bad things can happen. This could occur in the final bytes of
rq_snd_buf and the first bytes of rq_rcv_buf if the two buffers
happen to share a DMA cacheline.
On x86_64 the cacheline size is typically 8 bytes, and RPC call
messages are usually much smaller than the send buffer, so this
hasn't been a noticeable problem. But the DMA cacheline size can be
larger on other platforms.
Also, often rq_rcv_buf starts most of the way into a page, thus
an additional RDMA segment is needed to map and register the end of
that buffer. Try to avoid that scenario to reduce the cost of
registering and invalidating Reply chunks.
Instead of carrying a single regbuf that covers both rq_snd_buf and
rq_rcv_buf, each struct rpcrdma_req now carries one regbuf for
rq_snd_buf and one regbuf for rq_rcv_buf.
Some incidental changes worth noting:
- To clear out some spaghetti, refactor xprt_rdma_allocate.
- The value stored in rg_size is the same as the value stored in
the iov.length field, so eliminate rg_size
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Currently there's a hidden and indirect mechanism for finding the
rpcrdma_req that goes with an rpc_rqst. It depends on getting from
the rq_buffer pointer in struct rpc_rqst to the struct
rpcrdma_regbuf that controls that buffer, and then to the struct
rpcrdma_req it goes with.
This was done back in the day to avoid the need to add a per-rqst
pointer or to alter the buf_free API when support for RPC-over-RDMA
was introduced.
I'm about to change the way regbuf's work to support larger inline
thresholds. Now is a good time to replace this indirect mechanism
with something that is more straightforward. I guess this should be
considered a clean up.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
For xprtrdma, the RPC Call and Reply buffers are involved in real
I/O operations.
To start with, the DMA direction of the I/O for a Call is opposite
that of a Reply.
In the current arrangement, the Reply buffer address is on a
four-byte alignment just past the call buffer. Would be friendlier
on some platforms if that was at a DMA cache alignment instead.
Because the current arrangement allocates a single memory region
which contains both buffers, the RPC Reply buffer often contains a
page boundary in it when the Call buffer is large enough (which is
frequent).
It would be a little nicer for setting up DMA operations (and
possible registration of the Reply buffer) if the two buffers were
separated, well-aligned, and contained as few page boundaries as
possible.
Now, I could just pad out the single memory region used for the pair
of buffers. But frequently that would mean a lot of unused space to
ensure the Reply buffer did not have a page boundary.
Add a separate pointer to rpc_rqst that points right to the RPC
Reply buffer. This makes no difference to xprtsock, but it will help
xprtrdma in subsequent patches.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
xprtrdma needs to allocate the Call and Reply buffers separately.
TBH, the reliance on using a single buffer for the pair of XDR
buffers is transport implementation-specific.
Instead of passing just the rq_buffer into the buf_free method, pass
the task structure and let buf_free take care of freeing both
XDR buffers at once.
There's a micro-optimization here. In the common case, both
xprt_release and the transport's buf_free method were checking if
rq_buffer was NULL. Now the check is done only once per RPC.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
xprtrdma needs to allocate the Call and Reply buffers separately.
TBH, the reliance on using a single buffer for the pair of XDR
buffers is transport implementation-specific.
Transports that want to allocate separate Call and Reply buffers
will ignore the "size" argument anyway. Don't bother passing it.
The buf_alloc method can't return two pointers. Instead, make the
method's return value an error code, and set the rq_buffer pointer
in the method itself.
This gives call_allocate an opportunity to terminate an RPC instead
of looping forever when a permanent problem occurs. If a request is
just bogus, or the transport is in a state where it can't allocate
resources for any request, there needs to be a way to kill the RPC
right there and not loop.
This immediately fixes a rare problem in the backchannel send path,
which loops if the server happens to send a CB request whose
call+reply size is larger than a page (which it shouldn't do yet).
One more issue: looks like xprt_inject_disconnect was incorrectly
placed in the failure path in call_allocate. It needs to be in the
success path, as it is for other call-sites.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Clean up: there is some XDR initialization logic that is common
to the forward channel and backchannel. Move it to an XDR header
so it can be shared.
rpc_rqst::rq_buffer points to a buffer containing big-endian data.
Update its annotation as part of the clean up.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Clean up: r_xprt is already available everywhere these macros are
invoked, so just dereference that directly.
RPCRDMA_INLINE_PAD_VALUE is no longer used, so it can simply be
removed.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Try all multipath addresses for a data server. The first address that
successfully connects and creates a session is the DS mount address.
All subsequent addresses are tested for session trunking and
added as aliases.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Use an async exchange id call to test for session trunking
To conform with RFC 5661 section 18.35.4, the Non-Update on
Existing Clientid case, save the exchange id verifier in
cl_confirm and use it for the session trunking exhange id test.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Use a setup function to call into the NFS layer to test an rpc_xprt
for session trunking so as to not leak the rpc_xprt_switch into
the nfs layer.
Search for the address in the rpc_xprt_switch first so as not to
put an unnecessary EXCHANGE_ID on the wire.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Give the NFS layer access to the rpc_xprt_switch_add_xprt function
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Give the NFS layer access to the xprt_switch_put function
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
rpc_task_set_client is only called from rpc_run_task after
rpc_new_task and rpc_task_release_client is not needed as the
task is new.
When called from rpc_new_task, rpc_task_set_client also removed the
assigned rpc_xprt which is not desired.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
For session trunking, to compare nfs41_exchange_id_res with
existing nfs_client
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
For session trunking, to compare nfs41_exchange_id_res with
exiting nfs_client.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Testing an rpc_xprt for session trunking should not delay application
progress over already established transports.
Setup exchange_id to be able to be an async call to test an rpc_xprt
for session trunking use.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Add support for the kernel parameter nfs.callback_nr_threads to set
the number of threads that will be assigned to the callback channel.
Add support for the kernel parameter nfs.nfs.max_session_cb_slots
to set the maximum size of the callback channel slot table.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This will allow us to bump the number of callback threads at will.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Ensure that the nfs_callback_info[] array correctly tracks the
struct svc_serv.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
In order to manage the threads using svc_set_num_threads, we need to
fill in a few extra fields.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Current NFSv4.1/pNFS client assumes that MDS supports only one layout
type. While it's true for most existing servers, nevertheless, this can
be change in the near future.
For now, this patch just plumbs in the ability to track a list of
layouts in the fsinfo structure. The existing behavior of the client
is preserved, by having it just select the first entry in the list.
Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Signed-off-by: Jeff Layton <jlayton@poochiereds.net>
Reviewed-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
The variable `err` is not used anywhere and just returns the
predefined value `0` at the end of the function. Hence, remove the
variable and return 0 explicitly.
Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Here are 2 small fixes, and one new device id, for 4.8-rc7
The fixes solve a build error that was reported in your tree for the
blackfin arch, and resolve an issue with a number of broken USB devices
that reported the wrong interval rate. Included here is also a new
device id for the usb-serial driver.
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iFYEABECABYFAlfebRsPHGdyZWdAa3JvYWguY29tAAoJEDFH1A3bLfsp2/IAoMbG
oJUDt8spFWQS1DCbmfdWNNSnAJ4qNSYDvL5uYWH44DkEyHr+4MekDg==
=QA88
-----END PGP SIGNATURE-----
Merge tag 'usb-4.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are two small fixes, and one new device id, for 4.8-rc7
The fixes solve a build error that was reported in your tree for the
blackfin arch, and resolve an issue with a number of broken USB
devices that reported the wrong interval rate. Included here is also
a new device id for the usb-serial driver.
All have been in linux-next with no reported issues"
* tag 'usb-4.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: change bInterval default to 10 ms
usb: musb: Fix tusb6010 compile error on blackfin
USB: serial: simple: add support for another Infineon flashloader
Pull perf fixes from Thomas Gleixner:
"A couple of small fixes to x86 perf drivers:
- Measure L2 for HW_CACHE* events on AMD
- Fix the address filter handling in the intel/pt driver
- Handle the BTS disabling at the proper place"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/amd: Make HW_CACHE_REFERENCES and HW_CACHE_MISSES measure L2
perf/x86/intel/pt: Do validate the size of a kernel address filter
perf/x86/intel/pt: Fix kernel address filter's offset validation
perf/x86/intel/pt: Fix an off-by-one in address filter configuration
perf/x86/intel: Don't disable "intel_bts" around "intel" event batching
Pull SMP build fixlet from Thomas Gleixner:
"Add a missing include in cpuhotplug.h"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Include linux/types.h in linux/cpuhotplug.h
Pull irq fixes from Thomas Gleixner:
"Two patches from Boris which address a potential deadlock in the atmel
irq chip driver"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/atmel-aic: Fix potential deadlock in ->xlate()
genirq: Provide irq_gc_{lock_irqsave,unlock_irqrestore}() helpers
Since commit acb2505d01 ("openrisc: fix copy_from_user()"),
copy_from_user() returns the number of bytes requested, not the
number of bytes not copied.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Fixes: acb2505d01 ("openrisc: fix copy_from_user()")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
avr32 builds fail with:
arch/avr32/kernel/built-in.o: In function `arch_ptrace':
(.text+0x650): undefined reference to `___copy_from_user'
arch/avr32/kernel/built-in.o:(___ksymtab+___copy_from_user+0x0): undefined
reference to `___copy_from_user'
kernel/built-in.o: In function `proc_doulongvec_ms_jiffies_minmax':
(.text+0x5dd8): undefined reference to `___copy_from_user'
kernel/built-in.o: In function `proc_dointvec_minmax_sysadmin':
sysctl.c:(.text+0x6174): undefined reference to `___copy_from_user'
kernel/built-in.o: In function `ptrace_has_cap':
ptrace.c:(.text+0x69c0): undefined reference to `___copy_from_user'
kernel/built-in.o:ptrace.c:(.text+0x6b90): more undefined references to
`___copy_from_user' follow
Fixes: 8630c32275 ("avr32: fix copy_from_user()")
Cc: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Havard Skinnemoen <hskinnemoen@gmail.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
... by turning it into what used to be multipages counterpart
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes for code merged this cycle:
- Fix restore of SPRs upon wake up from hypervisor state loss from Gautham R. Shenoy
- Fix the state of root PE from Gavin Shan
- Detach from PE on releasing PCI device from Gavin Shan
- Fix size of NUM_CPU_FTR_KEYS on 32-bit
- Fix missed TCE invalidations that should fallback to OPAL
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=MG5t
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.8-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes for code merged this cycle:
- Fix restore of SPRs upon wake up from hypervisor state loss from
Gautham R Shenoy
- Fix the state of root PE from Gavin Shan
- Detach from PE on releasing PCI device from Gavin Shan
- Fix size of NUM_CPU_FTR_KEYS on 32-bit
- Fix missed TCE invalidations that should fallback to OPAL"
* tag 'powerpc-4.8-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/powernv/pci: Fix missed TCE invalidations that should fallback to OPAL
powerpc/powernv: Detach from PE on releasing PCI device
powerpc/powernv: Fix the state of root PE
powerpc/kernel: Fix size of NUM_CPU_FTR_KEYS on 32-bit
powerpc/powernv: Fix restore of SPRs upon wake up from hypervisor state loss
Pull cifs fixes from Steve French:
"Small set of cifs fixes"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
Move check for prefix path to within cifs_get_root()
Compare prepaths when comparing superblocks
Fix memory leaks in cifs_do_mount()
i915, vc4 and atmel.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=JIcI
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-for-4.8-rc6' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Two sets of i915 fixes, one set of vc4 crasher fixes, and a couple of
atmel fixes.
Nothing too out there at this stage, though I think some people are
holidaying so it's been quiet enough"
* tag 'drm-fixes-for-4.8-rc6' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Ignore OpRegion panel type except on select machines
Revert "drm/i915/psr: Make idle_frames sensible again"
drm/i915: Restore lost "Initialized i915" welcome message
drm/vc4: mark vc4_bo_cache_purge() static
drm/i915: Add GEN7_PCODE_MIN_FREQ_TABLE_GT_RATIO_OUT_OF_RANGE to SNB
drm/i915: disable 48bit full PPGTT when vGPU is active
drm/i915: enable vGPU detection for all
drm/atmel-hlcdc: Make ->reset() implementation static
drm: atmel-hlcdc: Fix vertical scaling
drm/vc4: Allow some more signals to be packed with uniform resets.
drm/i915/dvo: Remove dangling call to drm_encoder_cleanup()
More annotations of tracepoints in the runtime PM framework to
prevent RCU from complaining when that code is invoked from the
idle path (Paul McKenney).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=ljAx
-----END PGP SIGNATURE-----
Merge tag 'pm-4.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"More annotations of tracepoints in the runtime PM framework to prevent
RCU from complaining when that code is invoked from the idle path
(Paul McKenney)"
* tag 'pm-4.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / runtime: Use _rcuidle for runtime suspend tracepoints
-----BEGIN PGP SIGNATURE-----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=2xbn
-----END PGP SIGNATURE-----
Merge tag 'drm-vc4-fixes-2016-09-14' of https://github.com/anholt/linux into drm-fixes
This pull request brings in a fix for crashes in X on VC4.
* tag 'drm-vc4-fixes-2016-09-14' of https://github.com/anholt/linux:
drm/vc4: mark vc4_bo_cache_purge() static
drm/vc4: Allow some more signals to be packed with uniform resets.
i915 fixes from Jani.
* tag 'drm-intel-fixes-2016-09-15' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Ignore OpRegion panel type except on select machines
Revert "drm/i915/psr: Make idle_frames sensible again"
drm/i915: Restore lost "Initialized i915" welcome message
- Various fixes to rdmavt, ipoib, mlx5, mlx4, rxe
-----BEGIN PGP SIGNATURE-----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=HC3X
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma fixes from Doug Ledford:
"Round three of 4.8 rc fixes.
This is likely the last rdma pull request this cycle. The new rxe
driver had a few issues (you probably saw the boot bot bug report) and
they should be addressed now. There are a couple other fixes here,
mainly mlx4. There are still two outstanding issues that need
resolved but I don't think their fix will make this kernel cycle.
Summary:
- Various fixes to rdmavt, ipoib, mlx5, mlx4, rxe"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
IB/rdmavt: Don't vfree a kzalloc'ed memory region
IB/rxe: Fix kmem_cache leak
IB/rxe: Fix race condition between requester and completer
IB/rxe: Fix duplicate atomic request handling
IB/rxe: Fix kernel panic in udp_setup_tunnel
IB/mlx5: Set source mac address in FTE
IB/mlx5: Enable MAD_IFC commands for IB ports only
IB/mlx4: Diagnostic HW counters are not supported in slave mode
IB/mlx4: Use correct subnet-prefix in QP1 mads under SR-IOV
IB/mlx4: Fix code indentation in QP1 MAD flow
IB/mlx4: Fix incorrect MC join state bit-masking on SR-IOV
IB/ipoib: Don't allow MC joins during light MC flush
IB/rxe: fix GFP_KERNEL in spinlock context
Here are a couple of bugfixes for v4.8-rc. Most of them have
actually been around for a while this time but for some reason
didn't get applied early on. The shmobile regulator fix is the
only one that isn't completely obvious.
device tree changes:
- archtimer interrupts must be level triggered (multiple platforms)
- fix for USB and MMC clocks on STiH410
- fix split DT repository in case of raspberry-pi 3
- A new use of skeleton.dtsi on arm64 has crept in after that
was removed.
defconfig updates:
- xilinx vdma has a new Kconfig symbol name
- keystone requires CONFIG_NOP_USB_XCEIV since v4.8-rc1
code fixes:
- fix regulator quirk on shmobile
- suspend-to-ram regression on EXYNOS
maintainer updates:
- Javier Martinez Canillas is now a reviewer for Samsung EXYNOS
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=tYAb
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"Here are a couple of bugfixes for v4.8-rc.
Most of them have actually been around for a while this time but for
some reason didn't get applied early on. The shmobile regulator fix
is the only one that isn't completely obvious.
Device tree changes:
- archtimer interrupts must be level triggered (multiple platforms)
- fix for USB and MMC clocks on STiH410
- fix split DT repository in case of raspberry-pi 3
- a new use of skeleton.dtsi on arm64 has crept in after that was
removed.
defconfig updates:
- xilinx vdma has a new Kconfig symbol name
- keystone requires CONFIG_NOP_USB_XCEIV since v4.8-rc1
Code fixes:
- fix regulator quirk on shmobile
- suspend-to-ram regression on EXYNOS
Maintainer updates:
- Javier Martinez Canillas is now a reviewer for Samsung EXYNOS"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: keystone: defconfig: Fix USB configuration
arm64: dts: Fix broken architected timer interrupt trigger
ARM: multi_v7_defconfig: update XILINX_VDMA
ARM64: dts: bcm: Use a symlink to R-Pi dtsi files from arch=arm
ARM: dts: Remove use of skeleton.dtsi from bcm283x.dtsi
ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI
ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB)
ARM: shmobile: fix regulator quirk for Gen2
ARM: EXYNOS: Clear OF_POPULATED flag from PMU node in IRQ init callback
MAINTAINERS: Add myself as reviewer for Samsung Exynos support
Pull ARM fixes from Russell King:
"Most of this update are fixes primarily discovered from testing on the
older StrongARM 1110 and PXA systems, as a result of recent interest
from several people in these platforms:
- Locomo interrupt handling incorrectly stores the handler data in
the chip's private data slot: when Locomo is combined with an
interrupt controller who's chip uses the chip private data, this
leads to an oops.
- SA1111 was missing a call to clk_disable() to clean up after a
failed probe.
- SA1111 and PCMCIA suspend/resume was broken:
The PCMCIA "ds" layer was using the legacy bus suspend/resume
methods, which the core PM code is no longer calling as a result of
device_pm_check_callbacks() introduced in commit aa8e54b559
("PM / sleep: Go direct_complete if driver has no callbacks").
SA1111 was broken due to changes to PCMCIA which makes PCMCIA
suspend itself later than the SA1111 code expects, and resume
before the SA1111 code has initialised access to the pcmcia
sub-device.
- the default SA1111 interrupt mask polarity got messed up when it
was converted to use a dynamic interrupt base number for its
interrupts.
- fix platform_get_irq() error code propagation, which was causing
problems on platforms where the interrupt may not be available at
probe time in DT setups.
- fix the lack of clock to PCMCIA code on PXA platforms, which was
omitted in conversions of PXA to CCF.
- fix an oops in the PXA PCMCIA code caused by a previous commit not
realising that Lubbock is different from the rest of the PXA PCMCIA
drivers.
- ensure that SA1111 low-level PCMCIA drivers propagate their error
codes to the main probe function, rather than the driver silently
accepting a failure.
- fix the sa11xx debugfs reporting of timing information, which
always indicated zero due to the clock being a factor of 1000 out.
- fix the polarity of the status change signal reported from the
sockets.
Lastly, one ARM specific commit from Stefan Agner fixing the LPAE
cache attributes"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: pxa/lubbock: add pcmcia clock
ARM: locomo: fix locomo irq handling
ARM: 8612/1: LPAE: initialize cache policy correctly
ARM: sa1111: fix missing clk_disable()
ARM: sa1111: fix pcmcia suspend/resume
ARM: sa1111: fix pcmcia interrupt mask polarity
ARM: sa1111: fix error code propagation in sa1111_probe()
pcmcia: lubbock: fix sockets configuration
pcmcia: sa1111: fix propagation of lowlevel board init return code
pcmcia: soc_common: fix SS_STSCHG polarity
pcmcia: sa11xx_base: add units to the timing information
pcmcia: sa11xx_base: fix reporting of timing information
pcmcia: ds: fix suspend/resume
The userspace memory region 'mr' is allocated with kzalloc in
__rvt_alloc_mr however it is incorrectly being freed with vfree in
__rvt_free_mr. Fix this by using kfree to free it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
