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git://anongit.freedesktop.org/git/drm-misc into drm-next
drm-misc-next-fixes-2017-04-20
Core changes:
- Maintain sti via drm-misc (Vincent)
- Rename dma_buf_ops->kmap_* to avoid naming collision (Logan)
Driver changes:
- Fix UHD displays on stih407 (Vincent)
- Fix uninitialized var return in atmel-hlcdc (Dan)
* tag 'drm-misc-next-fixes-2017-04-20' of git://anongit.freedesktop.org/git/drm-misc:
dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro
drm: atmel-hlcdc: Uninitialized return in atmel_hlcdc_create_outputs()
drm/sti: fix GDP size to support up to UHD resolution
MAINTAINERS: add drm/sti driver into drm-misc
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Now that the function probes have their own ftrace_ops, there's no reason to
continue using the ftrace_func_hash to find which probe to call in the
function callback. The ops that is passed in to the function callback is
part of the probe_ops to call.
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
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As nothing outside the tracing directory uses the function command mechanism,
I'm moving the prototypes out of the include/linux/ftrace.h and into the
local kernel/trace/trace.h header. I plan on making them hook to the
trace_array structure which is local to kernel/trace, and I do not want to
expose it to the rest of the kernel. This requires that the command functions
must also be local to tracing. But luckily nothing else uses them.
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
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Fixes an issue where the size of the poll_stat array in request_queue
does not match the size expected by the new size based bucketing for
IO completion polling.
Fixes: 720b8ccc4500 ("blk-mq: Add a polling specific stats function")
Signed-off-by: Stephen Bates <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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To find out if a netdev is an OVS port.
Signed-off-by: Jiri Pirko <[email protected]>
Reviewed-by: Ido Schimmel <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add RDMA netdev interface to ib device structure allowing RDMA
netdev devices to be allocated by ib clients.
The idea is to allow to providers to optimize IPoIB data path.
New struct that includes functions and data member is exposed.
It exposes set of callback functions for handling data path flows
in IPoIB driver.
Each provider can support these set of functions in order
to optimize its specific data path, and let IPoIB to leverage
its data path.
There is an assumption, that providers should give the full set
of functions and not only part of them, in order to work properly.
Signed-off-by: Erez Shitrit <[email protected]>
Signed-off-by: Niranjana Vishwanathapura <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
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HFI1 HW specific support for VNIC functionality.
Dynamically allocate a set of contexts for VNIC when the first vnic
port is instantiated. Allocate VNIC contexts from user contexts pool
and return them back to the same pool while freeing up. Set aside
enough MSI-X interrupts for VNIC contexts and assign them when the
contexts are allocated. On the receive side, use an RSM rule to
spread TCP/UDP streams among VNIC contexts.
Reviewed-by: Dennis Dalessandro <[email protected]>
Reviewed-by: Ira Weiny <[email protected]>
Signed-off-by: Niranjana Vishwanathapura <[email protected]>
Signed-off-by: Andrzej Kacprowski <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
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Allocate a dax_device to represent the capacity of a device-mapper
instance. Provide a ->direct_access() method via the new dax_operations
indirection that mirrors the functionality of the current direct_access
support via block_device_operations. Once fs/dax.c has been converted
to use dax_operations the old dm_blk_direct_access() will be removed.
A new helper dm_dax_get_live_target() is introduced to separate some of
the dm-specifics from the direct_access implementation.
This enabling is only for the top-level dm representation to upper
layers. Converting target direct_access implementations is deferred to a
separate patch.
Cc: Toshi Kani <[email protected]>
Reviewed-by: Mike Snitzer <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
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Replace bdev_direct_access() with dax_direct_access() that uses
dax_device and dax_operations instead of a block_device and
block_device_operations for dax. Once all consumers of the old api have
been converted bdev_direct_access() will be deleted.
Given that block device partitioning decisions can cause dax page
alignment constraints to be violated this also introduces the
bdev_dax_pgoff() helper. It handles calculating a logical pgoff relative
to the dax_device and also checks for page alignment.
Signed-off-by: Dan Williams <[email protected]>
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This is leftover dead code that has since been replaced by
bdev_dax_supported().
Signed-off-by: Dan Williams <[email protected]>
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Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Acked-by: Roger Pau Monné <[email protected]>
Reviewed-by: Konrad Rzeszutek Wilk <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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This is for the legacy floppy and ataflop drivers that currently abuse
->errors for this purpose. It's stashed away in a union to not grow
the struct size, the other fields are either used by modern drivers
for different purposes or the I/O scheduler before queing the I/O
to drivers.
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Now that all drivers that call blk_mq_complete_requests have a
->complete callback we can remove the direct call to blk_mq_end_request,
as well as the error argument to blk_mq_complete_request.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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This passes on the scsi_cmnd result field to users of passthrough
requests. Currently we abuse req->errors for this purpose, but that
field will go away in its current form.
Note that the old IDE code abuses the errors field in very creative
ways and stores all kinds of different values in it. I didn't dare
to touch this magic, so the abuses are brought forward 1:1.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Martin K. Petersen <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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The function only returns -EIO if rq->errors is non-zero, which is not
very useful and lets a large number of callers ignore the return value.
Just let the callers figure out their error themselves.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Drop 'parent' argument of bdi_register() and bdi_register_va(). It is
always NULL.
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Now that all backing_dev_info structure are allocated separately, we can
drop some unused functions.
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Now that all bdi structures filesystems use are properly refcounted, we
can remove the SB_I_DYNBDI flag.
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Allocate struct backing_dev_info separately instead of embedding it
inside the superblock. This unifies handling of bdi among users.
CC: Anna Schumaker <[email protected]>
CC: [email protected]
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Acked-by: Trond Myklebust <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Allocate struct backing_dev_info separately instead of embedding it
inside the superblock. This unifies handling of bdi among users.
CC: Jan Harkes <[email protected]>
CC: [email protected]
CC: [email protected]
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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MTD already allocates backing_dev_info dynamically. Convert it to use
generic infrastructure for this including proper refcounting. We drop
mtd->backing_dev_info as its only use was to pass mtd_bdi pointer from
one file into another and if we wanted to keep that in a clean way, we'd
have to make mtd hold and drop bdi reference as needed which seems
pointless for passing one global pointer...
CC: David Woodhouse <[email protected]>
CC: Brian Norris <[email protected]>
CC: [email protected]
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Provide helper functions for setting up dynamically allocated
backing_dev_info structures for filesystems and cleaning them up on
superblock destruction.
CC: [email protected]
CC: [email protected]
CC: Petr Vandrovec <[email protected]>
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Add function that registers bdi and takes va_list instead of variable
number of arguments.
Add bdi_alloc() as simple wrapper for NUMA-unaware users allocating BDI.
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Let's try to have it in a cacheline in nfs4_proc_pgio_rpc_prepare().
Signed-off-by: Benjamin Coddington <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
My last pull request has been a while, we now have:
* connection quality monitoring with multiple thresholds
* support for FILS shared key authentication offload
* pre-CAC regulatory compliance - only ETSI allows this
* sanity check for some rate confusion that hit ChromeOS
(but nobody else uses it, evidently)
* some documentation updates
* lots of cleanups
====================
Signed-off-by: David S. Miller <[email protected]>
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To define the outgoing port and to discover the incoming port a regular
VLAN tag is used by the LAN9303. But its VID meaning is 'special'.
This tag handler/filter depends on some hardware features which must be
enabled in the device to provide and make use of this special VLAN tag
to control the destination and the source of an ethernet packet.
Signed-off-by: Juergen Borleis <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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When passed GFP flags that allow sleeping (such as
GFP_NOIO), mempool_alloc() will never return NULL, it will
wait until memory is available.
This means that we don't need to handle failure, but that we
do need to ensure one thread doesn't call mempool_alloc()
twice on the one pool without queuing or freeing the first
allocation. If multiple threads did this during times of
high memory pressure, the pool could be exhausted and a
deadlock could result.
pnfs_generic_alloc_ds_commits() attempts to allocate from
the nfs_commit_mempool while already holding an allocation
from that pool. This is not safe. So change
nfs_commitdata_alloc() to take a flag that indicates whether
failure is acceptable.
In pnfs_generic_alloc_ds_commits(), accept failure and
handle it as we currently do. Else where, do not accept
failure, and do not handle it.
Even when failure is acceptable, we want to succeed if
possible. That means both
- using an entry from the pool if there is one
- waiting for direct reclaim is there isn't.
We call mempool_alloc(GFP_NOWAIT) to achieve the first, then
kmem_cache_alloc(GFP_NOIO|__GFP_NORETRY) to achieve the
second. Each of these can fail, but together they do the
best they can without blocking indefinitely.
The objects returned by kmem_cache_alloc() will still be freed
by mempool_free(). This is safe as mempool_alloc() uses
exactly the same function to allocate objects (since the mempool
was created with mempool_create_slab_pool()). The object returned
by mempool_alloc() and kmem_cache_alloc() are indistinguishable
so mempool_free() will handle both identically, either adding to the
pool or calling kmem_cache_free().
Also, don't test for failure when allocating from
nfs_wdata_mempool.
Signed-off-by: NeilBrown <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>
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Use __le32 and __le64 instead of u32 and u64.
This fixes klibc build error:
In file included from /klibc/usr/klibc/../include/sys/md.h:30:0,
from /klibc/usr/kinit/do_mounts_md.c:19:
/linux-next/usr/include/linux/raid/md_p.h:414:51: error: 'u32' undeclared here (not in a function)
(PPL_HEADER_SIZE - PPL_HDR_RESERVED - 4 * sizeof(u32) - sizeof(u64))
Reported-by: Greg Thelen <[email protected]>
Reported-by: Nigel Croxon <[email protected]>
Tested-by: Greg Thelen <[email protected]>
Signed-off-by: Artur Paszkiewicz <[email protected]>
Signed-off-by: Shaohua Li <[email protected]>
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Define OPA VNIC interface between hardware independent VNIC
functionality and the hardware dependent VNIC functionality.
Reviewed-by: Dennis Dalessandro <[email protected]>
Reviewed-by: Ira Weiny <[email protected]>
Signed-off-by: Niranjana Vishwanathapura <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
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Add rdma netdev interface to ib device structure allowing rdma netdev
devices to be allocated by ib clients.
Reviewed-by: Dennis Dalessandro <[email protected]>
Reviewed-by: Ira Weiny <[email protected]>
Signed-off-by: Niranjana Vishwanathapura <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
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We rename the "write" flags to "exclusive", as it's used for both
WRITE and DESTROY actions.
Fixes: 3832125624b7 ('IB/core: Add support for idr types')
Signed-off-by: Matan Barak <[email protected]>
Reviewed-by: Sean Hefty <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB-serial updates for v4.12-rc1
Here are the USB-serial updates for 4.12, including:
- support for devices with up to 16 ports (e.g. some Moxa devices)
- support for endpoint sanity checks in core, which allows for code sharing
and avoids allocating resources for rejected interfaces
- support for endpoint-port remapping, which allows some driver hacks to
be removed as well as omninet to use the generic write implementation
- removal of an obsolete tty open-race workaround which prevented a
port from being opened immediately after having been registered
- generic-driver support for interfaces with just a bulk-in endpoint
- improved ftdi_sio event-char and latency-timer handling
- improved ftdi_sio support for some broken BM chips
Included are also various clean ups and a new ftdi_sio device id.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <[email protected]>
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A function in kernel/bpf/syscall.c which got a bug fix in 'net'
was moved to kernel/bpf/verifier.c in 'net-next'.
Signed-off-by: David S. Miller <[email protected]>
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The internal data-structures are scattered over various
header and C files. Consolidate them in omap-iommu.h.
While at this, add the kerneldoc comment for the missing
iommu domain variable and revise the iommu_arch_data name.
Signed-off-by: Joerg Roedel <[email protected]>
[[email protected]: revise kerneldoc comments]
Signed-off-by: Suman Anna <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
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All the supported boards that have OMAP IOMMU devices do support
DT boot only now. So, drop the support for the non-DT legacy-style
devices from the OMAP IOMMU driver. Couple of the fields from the
iommu platform data would no longer be required, so they have also
been cleaned up. The IOMMU platform data is still needed though for
performing reset management properly in a multi-arch environment.
Signed-off-by: Suman Anna <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
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The IORT linker section introduced by commit 34ceea275f62
("ACPI/IORT: Introduce linker section for IORT entries probing")
was needed to make sure SMMU drivers are registered (and therefore
probed) in the kernel before devices using the SMMU have a chance
to probe in turn.
Through the introduction of deferred IOMMU configuration the linker
section based IORT probing infrastructure is not needed any longer, in
that device/SMMU probe dependencies are managed through the probe
deferral mechanism, making the IORT linker section infrastructure
unused, so that it can be removed.
Remove the unused IORT linker section probing infrastructure
from the kernel to complete the ACPI IORT IOMMU configure probe
deferral mechanism implementation.
Tested-by: Hanjun Guo <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Cc: Sricharan R <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
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This is an equivalent to the DT's handling of the iommu master's probe
with deferred probing when the corrsponding iommu is not probed yet.
The lack of a registered IOMMU can be caused by the lack of a driver for
the IOMMU, the IOMMU device probe not having been performed yet, having
been deferred, or having failed.
The first case occurs when the firmware describes the bus master and
IOMMU topology correctly but no device driver exists for the IOMMU yet
or the device driver has not been compiled in. Return NULL, the caller
will configure the device without an IOMMU.
The second and third cases are handled by deferring the probe of the bus
master device which will eventually get reprobed after the IOMMU.
The last case is currently handled by deferring the probe of the bus
master device as well. A mechanism to either configure the bus master
device without an IOMMU or to fail the bus master device probe depending
on whether the IOMMU is optional or mandatory would be a good
enhancement.
Tested-by: Hanjun Guo <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
[Lorenzo: Added fixes for dma_coherent_mask overflow, acpi_dma_configure
called multiple times for same device]
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Sricharan R <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
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Failures to look up an IOMMU when parsing the DT iommus property need to
be handled separately from the .of_xlate() failures to support deferred
probing.
The lack of a registered IOMMU can be caused by the lack of a driver for
the IOMMU, the IOMMU device probe not having been performed yet, having
been deferred, or having failed.
The first case occurs when the device tree describes the bus master and
IOMMU topology correctly but no device driver exists for the IOMMU yet
or the device driver has not been compiled in. Return NULL, the caller
will configure the device without an IOMMU.
The second and third cases are handled by deferring the probe of the bus
master device which will eventually get reprobed after the IOMMU.
The last case is currently handled by deferring the probe of the bus
master device as well. A mechanism to either configure the bus master
device without an IOMMU or to fail the bus master device probe depending
on whether the IOMMU is optional or mandatory would be a good
enhancement.
Tested-by: Marek Szyprowski <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Laurent Pichart <[email protected]>
Signed-off-by: Sricharan R <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
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devices
Configuring DMA ops at probe time will allow deferring device probe when
the IOMMU isn't available yet. The dma_configure for the device is
now called from the generic device_attach callback just before the
bus/driver probe is called. This way, configuring the DMA ops for the
device would be called at the same place for all bus_types, hence the
deferred probing mechanism should work for all buses as well.
pci_bus_add_devices (platform/amba)(_device_create/driver_register)
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pci_bus_add_device (device_add/driver_register)
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device_attach device_initial_probe
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__device_attach_driver __device_attach_driver
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driver_probe_device
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really_probe
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dma_configure
Similarly on the device/driver_unregister path __device_release_driver is
called which inturn calls dma_deconfigure.
This patch changes the dma ops configuration to probe time for
both OF and ACPI based platform/amba/pci bus devices.
Tested-by: Marek Szyprowski <[email protected]>
Tested-by: Hanjun Guo <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
Acked-by: Rob Herring <[email protected]>
Acked-by: Bjorn Helgaas <[email protected]> (drivers/pci part)
Acked-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Sricharan R <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
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As part of moving DMA initializing to probe time the
of_dma_deconfigure() function will need to be called from different
source files. Make it public and move it to drivers/of/device.c where
the of_dma_configure() function is.
Tested-by: Marek Szyprowski <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
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Pick up upstream fixes to avoid conflicts with pending patches.
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Currently we opencode the FLR sequence in lots of place; export a core
helper instead. We split out the probing for FLR support as all the
non-core callers already know their hardware.
Note that in the new pci_has_flr() function the quirk check has been moved
before the capability check as there is no point in reading the capability
in this case.
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
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This will need to call into an arch-provided pci_iobar_pfn() function.
Signed-off-by: David Woodhouse <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
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Starting to leave behind the legacy of the pci_mmap_page_range() interface
which takes "user-visible" BAR addresses. This takes just the resource and
offset.
For now, both APIs coexist and depending on the platform, one is
implemented as a wrapper around the other.
Signed-off-by: David Woodhouse <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
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In all cases we know which BAR it is. Passing it in means that arch code
(or generic code; watch this space) won't have to go looking for it again.
Signed-off-by: David Woodhouse <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
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commit 239aeba76409 ("perf powerpc: Fix kprobe and kretprobe handling with
kallsyms on ppc64le") changed how we use the offset field in struct kprobe on
ABIv2. perf now offsets from the global entry point if an offset is specified
and otherwise chooses the local entry point.
Fix the same in kernel for kprobe API users. We do this by extending
kprobe_lookup_name() to accept an additional parameter to indicate the offset
specified with the kprobe registration. If offset is 0, we return the local
function entry and return the global entry point otherwise.
With:
# cd /sys/kernel/debug/tracing/
# echo "p _do_fork" >> kprobe_events
# echo "p _do_fork+0x10" >> kprobe_events
before this patch:
# cat ../kprobes/list
c0000000000d0748 k _do_fork+0x8 [DISABLED]
c0000000000d0758 k _do_fork+0x18 [DISABLED]
c0000000000412b0 k kretprobe_trampoline+0x0 [OPTIMIZED]
and after:
# cat ../kprobes/list
c0000000000d04c8 k _do_fork+0x8 [DISABLED]
c0000000000d04d0 k _do_fork+0x10 [DISABLED]
c0000000000412b0 k kretprobe_trampoline+0x0 [OPTIMIZED]
Acked-by: Ananth N Mavinakayanahalli <[email protected]>
Signed-off-by: Naveen N. Rao <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
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The macro is now pretty long and ugly on powerpc. In the light of further
changes needed here, convert it to a __weak variant to be over-ridden with a
nicer looking function.
Suggested-by: Masami Hiramatsu <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Naveen N. Rao <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
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Malta was the only platform probing this driver from platform code
without using device tree. With that code removed, gic_clocksource_init
is redundant so remove it.
Signed-off-by: Matt Redfearn <[email protected]>
Cc: [email protected]
Cc: Jason Cooper <[email protected]>
Cc: Paul Burton <[email protected]>
Cc: Daniel Lezcano <[email protected]>
Cc: Ralf Baechle <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
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