Commit graph

2,778 commits

Author SHA1 Message Date
Mark Brown
996034b117 Merge remote-tracking branches 'asoc/fix/sgtl5000', 'asoc/fix/topology' and 'asoc/fix/zx' into asoc-linus 2015-07-24 16:18:22 +01:00
Dave Airlie
f60de97674 Merge tag 'drm-intel-next-2015-07-17' of git://anongit.freedesktop.org/drm-intel into drm-next
- prelim hw support dropped for skl after Damien fixed an ABI issue around
  planes
- legacy modesetting is done using atomic infrastructure now (Maarten)!
- more gen9 workarounds (Arun&Nick)
- MOCS programming (cache control for better performance) for skl/bxt
- vlv/chv dpll improvements (Ville)
- PSR fixes from Rodrigo
- fbc improvements from Paulo
- plumb requests into execlist submit functions (Mika)
- opregion code cleanup from Jani
- resource streamer support from Abdiel for mesa
- final fixes for 12bpc hdmi + enabling support from Ville
drm-intel-next-2015-07-03:
- dsi improvements (Gaurav)
- bxt ddi dpll hw state readout (Imre)
- chv dvfs support and overall wm improvements for both vlv and chv (Ville)
- ppgtt polish from Mika and Michel
- cdclk support for bxt (Bob Pauwe)
- make frontbuffer tracking more precise
- OLR removal (John Harrison)
- per-ctx WA batch buffer support (Arun Siluvery)
- remvoe KMS Kconfig option (Chris)
- more hpd handling refactoring from Jani
- use atomic states throughout modeset code and integrate with atomic plane
  update (Maarten)
drm-intel-next-2015-06-19:
- refactoring hpd irq handlers (Jani)
- polish skl dpll code a bit (Damien)
- dynamic cdclk adjustement (Ville & Mika)
- fix up 12bpc hdmi and enable it for real again (Ville)
- extend hsw cmd parser to be useful for atomic configuration (Franscico Jerez)
- even more atomic conversion and rolling state handling out across modeset code
  from Maarten & Ander
- fix DRRS idleness detection (Ramalingam)
- clean up dsp address alignment handling (Ville)
- some fbc cleanup patches from Paulo
- prevent hard-hangs when trying to reset the gpu on skl (Mika)

* tag 'drm-intel-next-2015-07-17' of git://anongit.freedesktop.org/drm-intel: (386 commits)
  drm/i915: Update DRIVER_DATE to 20150717
  drm/i915/skl: Drop the preliminary_hw_support flag
  drm/i915/skl: Don't expose the top most plane on gen9 display
  drm/i915: Fix divide by zero on watermark update
  drm/i915: Invert fastboot check
  drm/i915: Clarify logic for initial modeset
  drm/i915: Unconditionally check gmch pfit state
  drm/i915: always disable irqs in intel_pipe_update_start
  drm/i915: Remove use of runtime pm in atomic commit functions
  drm/i915: Call plane update functions directly from intel_atomic_commit.
  drm/i915: Use full atomic modeset.
  drm/i915/gen9: Add WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken
  drm/i915/gen9: Add WaFlushCoherentL3CacheLinesAtContextSwitch workaround
  drm/i915/gen9: Add WaDisableCtxRestoreArbitration workaround
  drm/i915: Enable WA batch buffers for Gen9
  drm/i915/gen9: Implement WaDisableKillLogic for gen 9
  drm/i915: Use expcitly fixed type in compat32 structs
  drm/i915: Fix noatomic crtc disabling, v2.
  drm/i915: fill in more mode members
  drm/i915: Added BXT check in HAS_CORE_RING_FREQ macro
  ...
2015-07-24 14:29:06 +10:00
Dave Airlie
fa78ceab99 Merge tag 'topic/drm-misc-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-next
Update drm-misc pull request since the first one didn't go in yet. Few
atomic helper patches, rejecting some old dri1 crap for modern drivers and
a few trivial things on top.

* tag 'topic/drm-misc-2015-07-23' of git://anongit.freedesktop.org/drm-intel:
  drm/mgag200: remove unneeded variable
  drm/mgag200: remove unused variables
  drm/atomic: Only update crtc->x/y if it's part of the state, v2.
  drm/fb: drop panic handling
  drm: Fix warning with make xmldocs caused by drm_irq.c
  drm/gem: rip out drm vma accounting for gem mmaps
  drm/fourcc: Add formats R8, RG88, GR88
  drm/atomic: Cleanup on error properly in the atomic ioctl.
  drm: Update plane->fb also for page_flip
  drm: remove redundant code form drm_ioc32.c
  drm: reset empty state in transitional helpers
  drm/crtc-helper: Fixup error handling in drm_helper_crtc_mode_set
  drm/atomic: Update old_fb after setting a property.
  drm: Remove useless blank line
  drm: Reject DRI1 hw lock ioctl functions for kms drivers
  drm: Convert drm_legacy_ctxbitmap_init to void return type
  drm: Turn off Legacy Context Functions
2015-07-24 14:28:16 +10:00
Dave Airlie
4db9a82f1e Merge tag 'drm-intel-fixes-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-fixes
arb_timer kernel side fix from Chris.

* tag 'drm-intel-fixes-2015-07-23' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Use two 32bit reads for select 64bit REG_READ ioctls
2015-07-24 11:52:09 +10:00
Dave Airlie
762043aa77 Merge branch 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Some amdgpu fixes.

* 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu/cz/dpm: properly report UVD and VCE clock levels
  drm/amdgpu/cz: implement voltage validation properly
  drm/amdgpu: add VCE harvesting instance query
  drm/amdgpu: implement VCE 3.0 harvesting support (v4)
  drm/amdgpu/dce10: Re-set VBLANK interrupt state when enabling a CRTC
  drm/amdgpu/dce11: Re-set VBLANK interrupt state when enabling a CRTC
2015-07-24 11:51:18 +10:00
Adrian Hunter
45ac1403f5 perf: Add PERF_RECORD_SWITCH to indicate context switches
There are already two events for context switches, namely the tracepoint
sched:sched_switch and the software event context_switches.
Unfortunately neither are suitable for use by non-privileged users for
the purpose of synchronizing hardware trace data (e.g. Intel PT) to the
context switch.

Tracepoints are no good at all for non-privileged users because they
need either CAP_SYS_ADMIN or /proc/sys/kernel/perf_event_paranoid <= -1.

On the other hand, kernel software events need either CAP_SYS_ADMIN or
/proc/sys/kernel/perf_event_paranoid <= 1.

Now many distributions do default perf_event_paranoid to 1 making
context_switches a contender, except it has another problem (which is
also shared with sched:sched_switch) which is that it happens before
perf schedules events out instead of after perf schedules events in.
Whereas a privileged user can see all the events anyway, a
non-privileged user only sees events for their own processes, in other
words they see when their process was scheduled out not when it was
scheduled in. That presents two problems to use the event:

1. the information comes too late, so tools have to look ahead in the
   event stream to find out what the current state is

2. if they are unlucky tracing might have stopped before the
   context-switches event is recorded.

This new PERF_RECORD_SWITCH event does not have those problems
and it also has a couple of other small advantages.

It is easier to use because it is an auxiliary event (like mmap, comm
and task events) which can be enabled by setting a single bit. It is
smaller than sched:sched_switch and easier to parse.

To make the event useful for privileged users also, if the
context is cpu-wide then the event record will be
PERF_RECORD_SWITCH_CPU_WIDE which is the same as
PERF_RECORD_SWITCH except it also provides the next or
previous pid/tid.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1437471846-26995-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-23 22:51:12 -03:00
Jiri Slaby
45c6df4471 tty: linux/gsmmux.h needs linux/types.h
We use __u8 in linux/gsmmux.h, so include linux/types.h to have that
defined.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-23 17:48:43 -07:00
Linus Torvalds
d1a343a023 virtio/vhost: fixes for 4.2
Bugfixes and documentation fixes. Igor's patch that allows
 users to tweak memory table size is borderline,
 but it does fix known crashes, so I merged it.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio/vhost fixes from Michael Tsirkin:
 "Bugfixes and documentation fixes.

  Igor's patch that allows users to tweak memory table size is
  borderline, but it does fix known crashes, so I merged it"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost: add max_mem_regions module parameter
  vhost: extend memory regions allocation to vmalloc
  9p/trans_virtio: reset virtio device on remove
  virtio/s390: rename drivers/s390/kvm -> drivers/s390/virtio
  MAINTAINERS: separate section for s390 virtio drivers
  virtio: define virtio_pci_cfg_cap in header.
  virtio: Fix typecast of pointer in vring_init()
  virtio scsi: fix unused variable warning
  vhost: use binary search instead of linear in find_region()
  virtio_net: document VIRTIO_NET_CTRL_GUEST_OFFLOADS
2015-07-23 13:07:04 -07:00
Leo Liu
fa92754e9c drm/amdgpu: add VCE harvesting instance query
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2015-07-23 11:09:45 -04:00
Andrey Smetanin
2ce7918990 kvm/x86: add sending hyper-v crash notification to user space
Sending of notification is done by exiting vcpu to user space
if KVM_REQ_HV_CRASH is enabled for vcpu. At exit to user space
the kvm_run structure contains system_event with type
KVM_SYSTEM_EVENT_CRASH to notify about guest crash occurred.

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Peter Hornyack <peterhornyack@google.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Gleb Natapov <gleb@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-23 08:27:06 +02:00
Erik Kline
3985e8a361 ipv6: sysctl to restrict candidate source addresses
Per RFC 6724, section 4, "Candidate Source Addresses":

    It is RECOMMENDED that the candidate source addresses be the set
    of unicast addresses assigned to the interface that will be used
    to send to the destination (the "outgoing" interface).

Add a sysctl to enable this behaviour.

Signed-off-by: Erik Kline <ek@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 10:54:11 -07:00
Rick Jones
b56ea2985d net: track success and failure of TCP PMTU probing
Track success and failure of TCP PMTU probing.

Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21 22:36:33 -07:00
Thomas Graf
e7030878fc fib: Add fib rule match on tunnel id
This add the ability to select a routing table based on the tunnel
id which allows to maintain separate routing tables for each virtual
tunnel network.

ip rule add from all tunnel-id 100 lookup 100
ip rule add from all tunnel-id 200 lookup 200

A new static key controls the collection of metadata at tunnel level
upon demand.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21 10:39:06 -07:00
Thomas Graf
3093fbe7ff route: Per route IP tunnel metadata via lightweight tunnel
This introduces a new IP tunnel lightweight tunnel type which allows
to specify IP tunnel instructions per route. Only IPv4 is supported
at this point.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21 10:39:06 -07:00
Thomas Graf
ee122c79d4 vxlan: Flow based tunneling
Allows putting a VXLAN device into a new flow-based mode in which
skbs with a ip_tunnel_info dst metadata attached will be encapsulated
according to the instructions stored in there with the VXLAN device
defaults taken into consideration.

Similar on the receive side, if the VXLAN_F_COLLECT_METADATA flag is
set, the packet processing will populate a ip_tunnel_info struct for
each packet received and attach it to the skb using the new metadata
dst.  The metadata structure will contain the outer header and tunnel
header fields which have been stripped off. Layers further up in the
stack such as routing, tc or netfitler can later match on these fields
and perform forwarding. It is the responsibility of upper layers to
ensure that the flag is set if the metadata is needed. The flag limits
the additional cost of metadata collecting based on demand.

This prepares the VXLAN device to be steered by the routing and other
subsystems which allows to support encapsulation for a large number
of tunnel endpoints and tunnel ids through a single net_device which
improves the scalability.

It also allows for OVS to leverage this mode which in turn allows for
the removal of the OVS specific VXLAN code.

Because the skb is currently scrubed in vxlan_rcv(), the attachment of
the new dst metadata is postponed until after scrubing which requires
the temporary addition of a new member to vxlan_metadata. This member
is removed again in a later commit after the indirect VXLAN receive API
has been removed.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21 10:39:06 -07:00
Thomas Graf
1d8fff9073 ip_tunnel: Make ovs_tunnel_info and ovs_key_ipv4_tunnel generic
Rename the tunnel metadata data structures currently internal to
OVS and make them generic for use by all IP tunnels.

Both structures are kernel internal and will stay that way. Their
members are exposed to user space through individual Netlink
attributes by OVS. It will therefore be possible to extend/modify
these structures without affecting user ABI.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21 10:39:05 -07:00
Roopa Prabhu
e3e4712ec0 mpls: ip tunnel support
This implementation uses lwtunnel infrastructure to register
hooks for mpls tunnel encaps.

It picks cues from iptunnel_encaps infrastructure and previous
mpls iptunnel RFC patches from Eric W. Biederman and Robert Shearman

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21 10:39:05 -07:00
Roopa Prabhu
499a242568 lwtunnel: infrastructure for handling light weight tunnels like mpls
Provides infrastructure to parse/dump/store encap information for
light weight tunnels like mpls. Encap information for such tunnels
is associated with fib routes.

This infrastructure is based on previous suggestions from
Eric Biederman to follow the xfrm infrastructure.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21 10:39:03 -07:00
Roopa Prabhu
a0d9a8604f rtnetlink: introduce new RTA_ENCAP_TYPE and RTA_ENCAP attributes
This patch introduces two new RTA attributes to attach encap
data to fib routes.

Example iproute2 command to attach mpls encap data to ipv4 routes

$ip route add 10.1.1.0/30 encap mpls 200 via inet 10.1.1.1 dev swp1

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Suggested-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21 10:39:03 -07:00
Alex Bennée
5540546bc9 KVM: arm64: guest debug, HW assisted debug support
This adds support for userspace to control the HW debug registers for
guest debug. In the debug ioctl we copy an IMPDEF registers into a new
register set called host_debug_state.

We use the recently introduced vcpu parameter debug_ptr to select which
register set is copied into the real registers when world switch occurs.

I've made some helper functions from hw_breakpoint.c more widely
available for re-use.

As with single step we need to tweak the guest registers to enable the
exceptions so we need to save and restore those bits.

Two new capabilities have been added to the KVM_EXTENSION ioctl to allow
userspace to query the number of hardware break and watch points
available on the host hardware.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-07-21 12:50:43 +01:00
Alex Bennée
8ab30c1538 KVM: add comments for kvm_debug_exit_arch struct
Bring into line with the comments for the other structures and their
KVM_EXIT_* cases. Also update api.txt to reflect use in kvm_run
documentation.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-07-21 12:47:08 +01:00
Chris Wilson
648a9bc530 drm/i915: Use two 32bit reads for select 64bit REG_READ ioctls
Since the hardware sometimes mysteriously totally flummoxes the 64bit
read of a 64bit register when read using a single instruction, split the
read into two instructions. Since the read here is of automatically
incrementing timestamp counters, we also have to be very careful in
order to make sure that it does not increment between the two
instructions.

However, since userspace tried to workaround this issue and so enshrined
this ABI for a broken hardware read and in the process neglected that
the read only fails in some environments, we have to introduce a new
uABI flag for userspace to request the 2x32 bit accurate read of the
timestamp.

v2: Fix alignment check and include details of the workaround for
userspace.

Reported-by: Karol Herbst <freedesktop@karolherbst.de>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91317
Testcase: igt/gem_reg_read
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: stable@vger.kernel.org
Tested-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-21 11:49:13 +02:00
Alexei Starovoitov
4e10df9a60 bpf: introduce bpf_skb_vlan_push/pop() helpers
Allow eBPF programs attached to TC qdiscs call skb_vlan_push/pop via
helper functions. These functions may change skb->data/hlen which are
cached by some JITs to improve performance of ld_abs/ld_ind instructions.
Therefore JITs need to recognize bpf_skb_vlan_push/pop() calls,
re-compute header len and re-cache skb->data/hlen back into cpu registers.
Note, skb->data/hlen are not directly accessible from the programs,
so any changes to skb->data done either by these helpers or by other
TC actions are safe.

eBPF JIT supported by three architectures:
- arm64 JIT is using bpf_load_pointer() without caching, so it's ok as-is.
- x64 JIT re-caches skb->data/hlen unconditionally after vlan_push/pop calls
  (experiments showed that conditional re-caching is slower).
- s390 JIT falls back to interpreter for now when bpf_skb_vlan_push() is present
  in the program (re-caching is tbd).

These helpers allow more scalable handling of vlan from the programs.
Instead of creating thousands of vlan netdevs on top of eth0 and attaching
TC+ingress+bpf to all of them, the program can be attached to eth0 directly
and manipulate vlans as necessary.

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:52:31 -07:00
David S. Miller
f3120acc78 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-07-17

This series contains updates to igb, ixgbe, ixgbevf, i40e, bnx2x,
freescale, siena and dp83640.

Jacob provides several patches to clarify the intended way to implement
both SIOCSHWTSTAMP and ethtool's get_ts_info().  It is okay to support
the specific filters in SIOCSHWTSTAMP by upscaling them to the generic
filters.

Alex Duyck provides a igb patch to pull the time stamp from the fragment
before it gets added to the skb, to avoid a possible issue in which the
fragment can possibly be less than IGB_RX_HDR_LEN due to the time stamp
being pulled after the copybreak check.  Also provides a ixgbevf patch to
fold the ixgbevf_pull_tail() call into ixgbevf_add_rx_frag(), which gives
the advantage that the fragment does not have to be modified after it is
added to the skb.

Fan provides patches for ixgbe/ixgbevf to set the receive hash type
based on receive descriptor RSS type.

Todd provides a fix for igb where on check for link on any media other
than copper was not being detected since it was looking on the incorrect
PHY page (due to the page being used gets switched before the function
to check link gets executed).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:50:19 -07:00
Daniel Borkmann
8d20aabe1c ebpf: add helper to retrieve net_cls's classid cookie
It would be very useful to retrieve the net_cls's classid from an eBPF
program to allow for a more fine-grained classification, it could be
directly used or in conjunction with additional policies. I.e. docker,
but also tooling such as cgexec, can easily run applications via net_cls
cgroups:

  cgcreate -g net_cls:/foo
  echo 42 > foo/net_cls.classid
  cgexec -g net_cls:foo <prog>

Thus, their respecitve classid cookie of foo can then be looked up on
the egress path to apply further policies. The helper is desigend such
that a non-zero value returns the cgroup id.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Thomas Graf <tgraf@suug.ch>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 12:41:30 -07:00
Kinglong Mee
7b8f458653 nfsd: Add macro NFS_ACL_MASK for ACL
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-07-20 14:58:46 -04:00
James Morris
fe6c59dc17 Merge tag 'seccomp-next' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into next 2015-07-20 17:19:19 +10:00
Jacob Keller
eff3cddc22 clarify implementation of ethtool's get_ts_info op
This patch adds some clarification about the intended way to implement
both SIOCSHWTSTAMP and ethtool's get_ts_info. The HWTSTAMP API has
several Rx filters which are very specific, as well as more general
filters. The specific filters really only exist to support some broken
hardware which can't fully implement the generic filters. This patch
adds clarification that it is okay to support the specific filters in
SIOCSHWTSTAMP by upscaling them to the generic filters. In addition,
update the header for ethtool_ts_info to specify that drivers ought to
only report the filters they support without upscaling in this manner.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Reviewed-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-07-17 19:59:04 -07:00
Mats Randgaard
d32d98642d [media] Driver for Toshiba TC358743 HDMI to CSI-2 bridge
The driver is tested on our hardware and all the implemented features
works as expected.

Missing features:
- CEC support
- HDCP repeater support
- IR support

Signed-off-by: Mats Randgaard <matrandg@cisco.com>
[hans.verkuil@cisco.com: updated copyright year to 2015]
[hans.verkuil@cisco.com: update confusing confctl_mutex comment]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-17 09:59:28 -03:00
Anuradha Karuppiah
88d6378bd6 netlink: changes for setting and clearing protodown via netlink.
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Wilson Kok <wkok@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-15 21:39:40 -07:00
Tycho Andersen
13c4a90119 seccomp: add ptrace options for suspend/resume
This patch is the first step in enabling checkpoint/restore of processes
with seccomp enabled.

One of the things CRIU does while dumping tasks is inject code into them
via ptrace to collect information that is only available to the process
itself. However, if we are in a seccomp mode where these processes are
prohibited from making these syscalls, then what CRIU does kills the task.

This patch adds a new ptrace option, PTRACE_O_SUSPEND_SECCOMP, that enables
a task from the init user namespace which has CAP_SYS_ADMIN and no seccomp
filters to disable (and re-enable) seccomp filters for another task so that
they can be successfully dumped (and restored). We restrict the set of
processes that can disable seccomp through ptrace because although today
ptrace can be used to bypass seccomp, there is some discussion of closing
this loophole in the future and we would like this patch to not depend on
that behavior and be future proofed for when it is removed.

Note that seccomp can be suspended before any filters are actually
installed; this behavior is useful on criu restore, so that we can suspend
seccomp, restore the filters, unmap our restore code from the restored
process' address space, and then resume the task by detaching and have the
filters resumed as well.

v2 changes:

* require that the tracer have no seccomp filters installed
* drop TIF_NOTSC manipulation from the patch
* change from ptrace command to a ptrace option and use this ptrace option
  as the flag to check. This means that as soon as the tracer
  detaches/dies, seccomp is re-enabled and as a corrollary that one can not
  disable seccomp across PTRACE_ATTACHs.

v3 changes:

* get rid of various #ifdefs everywhere
* report more sensible errors when PTRACE_O_SUSPEND_SECCOMP is incorrectly
  used

v4 changes:

* get rid of may_suspend_seccomp() in favor of a capable() check in ptrace
  directly

v5 changes:

* check that seccomp is not enabled (or suspended) on the tracer

Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
CC: Will Drewry <wad@chromium.org>
CC: Roland McGrath <roland@hack.frob.com>
CC: Pavel Emelyanov <xemul@parallels.com>
CC: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Andy Lutomirski <luto@amacapital.net>
[kees: access seccomp.mode through seccomp_mode() instead]
Signed-off-by: Kees Cook <keescook@chromium.org>
2015-07-15 11:52:52 -07:00
Daniel Vetter
ca6e440577 Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued
Backmerge fixes since it's getting out of hand again with the massive
split due to atomic between -next and 4.2-rc. All the bugfixes in
4.2-rc are addressed already (by converting more towards atomic
instead of minimal duct-tape) so just always pick the version in next
for the conflicts in modeset code.

All the other conflicts are just adjacent lines changed.

Conflicts:
	drivers/gpu/drm/i915/i915_drv.h
	drivers/gpu/drm/i915/i915_gem_gtt.c
	drivers/gpu/drm/i915/intel_display.c
	drivers/gpu/drm/i915/intel_drv.h
	drivers/gpu/drm/i915/intel_ringbuffer.h

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-15 16:36:50 +02:00
Daniel Vetter
346add7834 drm/i915: Use expcitly fixed type in compat32 structs
I was confused shortly whether the compat was needed for the int,
until I noticed the pointer in the original.

Also remove typedef.

v2: Review from Chris.
- Add comments.
- Also change the int param in the original structure.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-15 11:39:59 +02:00
Michael S. Tsirkin
c9ddbac9c8 PCI: Restore PCI_MSIX_FLAGS_BIRMASK definition
09a2c73ddf ("PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definition")
removed PCI_MSIX_FLAGS_BIRMASK from an exported header because it was
unused in the kernel.  But that breaks user programs that were using it
(QEMU in particular).

Restore the PCI_MSIX_FLAGS_BIRMASK definition.

[bhelgaas: changelog]
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org	# v3.13+
2015-07-14 18:27:46 -05:00
David S. Miller
638d3c6381 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	net/bridge/br_mdb.c

Minor conflict in br_mdb.c, in 'net' we added a memset of the
on-stack 'ip' variable whereas in 'net-next' we assign a new
member 'vid'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 17:28:09 -07:00
Nikolay Aleksandrov
74fe61f17e bridge: mdb: add vlan support for user entries
Until now all user mdb entries were added in vlan 0, this patch adds
support to allow the user to specify the vlan for the entry.
About the uapi change a hole in struct br_mdb_entry is used so the size
and offsets are kept the same (verified with pahole and tested with older
iproute2).

Example:
$ bridge mdb
dev br0 port eth1 grp 239.0.0.1 permanent vlan 2000
dev br0 port eth1 grp 239.0.0.1 permanent vlan 200
dev br0 port eth1 grp 239.0.0.1 permanent

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 14:41:26 -07:00
Linus Torvalds
f760b87f8f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Missing list head init in bluetooth hidp session creation, from Tedd
    Ho-Jeong An.

 2) Don't leak SKB in bridge netfilter error paths, from Florian
    Westphal.

 3) ipv6 netdevice private leak in netfilter bridging, fixed by Julien
    Grall.

 4) Fix regression in IP over hamradio bpq encapsulation, from Ralf
    Baechle.

 5) Fix race between rhashtable resize events and table walks, from Phil
    Sutter.

 6) Missing validation of IFLA_VF_INFO netlink attributes, fix from
    Daniel Borkmann.

 7) Missing security layer socket state initialization in tipc code,
    from Stephen Smalley.

 8) Fix shared IRQ handling in boomerang 3c59x interrupt handler, from
    Denys Vlasenko.

 9) Missing minor_idr destroy on module unload on macvtap driver, from
    Johannes Thumshirn.

10) Various pktgen kernel thread races, from Oleg Nesterov.

11) Fix races that can cause packets to be processed in the backlog even
    after a device attached to that SKB has been fully unregistered.
    From Julian Anastasov.

12) bcmgenet driver doesn't account packet drops vs.  errors properly,
    fix from Petri Gynther.

13) Array index validation and off by one fix in DSA layer from Florian
    Fainelli

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (66 commits)
  can: replace timestamp as unique skb attribute
  ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux
  can: c_can: Fix default pinmux glitch at init
  can: rcar_can: unify error messages
  can: rcar_can: print request_irq() error code
  can: rcar_can: fix typo in error message
  can: rcar_can: print signed IRQ #
  can: rcar_can: fix IRQ check
  net: dsa: Fix off-by-one in switch address parsing
  net: dsa: Test array index before use
  net: switchdev: don't abort unsupported operations
  net: bcmgenet: fix accounting of packet drops vs errors
  cdc_ncm: update specs URL
  Doc: z8530book: Fix typo in API-z8530-sync-txdma-open.html
  net: inet_diag: always export IPV6_V6ONLY sockopt for listening sockets
  bridge: mdb: allow the user to delete mdb entry if there's a querier
  net: call rcu_read_lock early in process_backlog
  net: do not process device backlog during unregistration
  bridge: fix potential crash in __netdev_pick_tx()
  net: axienet: Fix devm_ioremap_resource return value check
  ...
2015-07-13 11:18:25 -07:00
Chad Versace
1055e0687f drm/fourcc: Add formats R8, RG88, GR88
The Kodi/XBMC developers want to transcode NV12 to RGB with OpenGL
shaders, importing the two source planes through
EGL_EXT_image_dma_buf_import. That requires importing the Y plane as an
R8 EGLImage and the UV plane as either an RG88 or GR88 EGLImage.

CC: Peter Frühberger <peter.fruehberger@gmail.com>
Cc: Rainer Hochecker <rainer.hochecker@onlinehome.de>
Cc: Benjamin Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Chad Versace <chad.versace@intel.com>
2015-07-09 15:12:41 +02:00
Andy Gospodarek
974d7af5fc ipv4: add support for linkdown sysctl to netconf
This kernel patch exports the value of the new
ignore_routes_with_linkdown via netconf.

v2: changes to notify userspace via netlink when sysctl values change
and proposed for 'net' since this could be considered a bugfix

Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Suggested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-08 23:34:53 -07:00
Michael S. Tsirkin
3121bb023e virtio: define virtio_pci_cfg_cap in header.
We already have VIRTIO_PCI_CAP_PCI_CFG, let's define the structure that
goes with it.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-07 14:27:05 +03:00
Thomas Huth
d768f32aec virtio: Fix typecast of pointer in vring_init()
The virtio_ring.h header is used in userspace programs (ie. QEMU),
too. Here we can not assume that sizeof(pointer) is the same as
sizeof(long), e.g. when compiling for Windows, so the typecast in
vring_init() should be done with (uintptr_t) instead of (unsigned long).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-07 14:27:04 +03:00
Joe Perches
9aee1ae331 [media] media: uapi: vsp1: Use __u32 instead of u32
Don't use the kernel types in uapi headers.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-06 08:25:50 -03:00
Abdiel Janulgue
a9ed33ca07 drm/i915: Expose I915_EXEC_RESOURCE_STREAMER flag and getparam
Ensures that the batch buffer is executed by the resource streamer.
And will let userspace know whether Resource Streamer is supported in
the kernel.

v2: Don't skip 1<<15 for the exec flags (Jani Nikula)
v3: Use HAS_RESOURCE_STREAMER macro for execbuf validation (Chris Wilson)

(from getparam patch)

v2: Update I915_PARAM_HAS_RESOURCE_STREAMER so it's after
    I915_PARAM_HAS_GPU_RESET.
v3: Only advertise RS support for hardware that supports it.
v4: Add HAS_RESOURCE_STREAMER() macro (Chris)

Testcase: igt/gem_exec_params
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
[danvet: squash in getparam patch since it'd break bisect, suggested
by Chris.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-06 10:36:46 +02:00
Linus Torvalds
5fc835284d virtio/vhost: cross endian support
I have just queued some more bugfix patches today but none fix regressions and
 none are related to these ones, so it looks like a good time for a merge for
 -rc1.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio/vhost cross endian support from Michael Tsirkin:
 "I have just queued some more bugfix patches today but none fix
  regressions and none are related to these ones, so it looks like a
  good time for a merge for -rc1.

  The motivation for this is support for legacy BE guests on the new LE
  hosts.  There are two redeeming properties that made me merge this:

   - It's a trivial amount of code: since we wrap host/guest accesses
     anyway, almost all of it is well hidden from drivers.

   - Sane platforms would never set flags like VHOST_CROSS_ENDIAN_LEGACY,
     and when it's clear, there's zero overhead (as some point it was
     tested by compiling with and without the patches, got the same
     stripped binary).

  Maybe we could create a Kconfig symbol to enforce the second point:
  prevent people from enabling it eg on x86.  I will look into this"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio-pci: alloc only resources actually used.
  macvtap/tun: cross-endian support for little-endian hosts
  vhost: cross-endian support for legacy devices
  virtio: add explicit big-endian support to memory accessors
  vhost: introduce vhost_is_little_endian() helper
  vringh: introduce vringh_is_little_endian() helper
  macvtap: introduce macvtap_is_little_endian() helper
  tun: add tun_is_little_endian() helper
  virtio: introduce virtio_is_little_endian() helper
2015-07-03 16:02:25 -07:00
Linus Torvalds
848077270d Merge branch 'drm-next-4.2' of git://people.freedesktop.org/~agd5f/linux
Pull radeon and amdgpu fixes from Alex Deucher:
 "First round of fixes for 4.2 for radeon and amdgpu.  Stuff all over
  the place:

   - hibernation, suspend fixes for radeon and amdgpu
   - radeon audio fix
   - amdgpu ioctl optimzations and fixes
   - amdgpu VCE cs checker improvements
   - misc bug fixes"

[ Dave on vacation, pulling directly ]

* 'drm-next-4.2' of git://people.freedesktop.org/~agd5f/linux: (30 commits)
  drm/radeon: only check the sink type on DP connectors
  drm/amdgpu: add flag to delay VM updates
  drm/amdgpu: add optional dependencies to the CS IOCTL v2
  drm/amdgpu: recreate fence from user seq
  gpu/drm/amdgpu: Fix build when CONFIG_DEBUG_FS is not set
  Revert "drm/radeon: dont switch vt on suspend"
  drm/amdgpu: disable enable_nb_ps_policy temporarily
  drm/amdgpu: correct define SMU_EnabledFeatureScoreboard_SclkDpmOn
  drm/amdgpu: allocate ip_block_enabled memory in common code
  drm/amdgpu: remove unnecessary check before kfree
  drm/amdgpu: use kzalloc for allocating one thing
  drm/radeon: fix adding all VAs to the freed list on remove v2
  drm/amdgpu: add chunk id validity check
  drm/amdgpu: fix crash on invalid CS IOCTL
  drm/amdgpu: reset wptr at cp compute resume (v2)
  drm/amdgpu: check VCE feedback and bitstream index
  drm/amdgpu: make VCE handle check more strict
  drm/amdgpu: check VCE relocation buffer range
  drm/amdgpu: silence invalid error message
  drm/amdgpu: fix wrong type
  ...
2015-07-02 14:38:15 -07:00
Linus Torvalds
a7ba4bf5e7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
 "This is the start of improving fuse scalability.

  An input queue and a processing queue is split out from the monolithic
  fuse connection, each of those having their own spinlock.  The end of
  the patchset adds the ability to clone a fuse connection.  This means,
  that instead of having to read/write requests/answers on a single fuse
  device fd, the fuse daemon can have multiple distinct file descriptors
  open.  Each of those can be used to receive requests and send answers,
  currently the only constraint is that a request must be answered on
  the same fd as it was read from.

  This can be extended further to allow binding a device clone to a
  specific CPU or NUMA node.

  Based on a patchset by Srinivas Eeda and Ashish Samant.  Thanks to
  Ashish for the review of this series"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (40 commits)
  fuse: update MAINTAINERS entry
  fuse: separate pqueue for clones
  fuse: introduce per-instance fuse_dev structure
  fuse: device fd clone
  fuse: abort: no fc->lock needed for request ending
  fuse: no fc->lock for pqueue parts
  fuse: no fc->lock in request_end()
  fuse: cleanup request_end()
  fuse: request_end(): do once
  fuse: add req flag for private list
  fuse: pqueue locking
  fuse: abort: group pqueue accesses
  fuse: cleanup fuse_dev_do_read()
  fuse: move list_del_init() from request_end() into callers
  fuse: duplicate ->connected in pqueue
  fuse: separate out processing queue
  fuse: simplify request_wait()
  fuse: no fc->lock for iqueue parts
  fuse: allow interrupt queuing without fc->lock
  fuse: iqueue locking
  ...
2015-07-02 11:21:26 -07:00
Vinod Koul
9c3a473220 ASoC: topology: fix typos in topology header
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-02 12:40:10 +01:00
Linus Torvalds
47ebed96ff Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) mlx4 driver bug fixes (TX queue wakeups, csum complete indications)
    from Ido Shamay, Eran Ben Elisha, and Or Gerlitz.

 2) Missing unlock in error path of PTP support in renesas driver, from
    Dan Carpenter.

 3) Add Vitesse 8641 phy IDs to vitesse PHY driver, from Shaohui Xie.

 4) Bnx2x driver bug fixes (linearization of encap packets, scratchpad
    parity error notifications, flow-control and speed settings) from
    Yuval Mintz, Manish Chopra, Shahed Shaikh, and Ariel Elior.

 5) ipv6 extension header parsing in the igb chip has a HW errata,
    disable it.  Frm Todd Fujinaka.

 6) Fix PCI link state locking issue in e1000e driver, from Yanir
    Lubetkin.

 7) Cure panics during MTU change in i40e, from Mitch Williams.

 8) Don't leak promisc refs in DSA slave driver, from Gilad Ben-Yossef.

 9) Add missing HAS_DMA dep to VIA Rhine driver, from Geery
    Uytterhoeven.

10) Make sure DMA map/unmap calls are symmetric in bnx2x driver, from
    Michal Schmidt.

11) Workaround for MDIO access problems in bcm7xxx devices, from FLorian
    Fainelli.

12) Fix races in SCTP protocol between OTTB responses and route
    removals, from Alexander Sverdlin.

13) Fix jumbo frame checksum issue with some mvneta devices, from Simon
    Guinot.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (58 commits)
  sock_diag: don't broadcast kernel sockets
  net: mvneta: disable IP checksum with jumbo frames for Armada 370
  ARM: mvebu: update Ethernet compatible string for Armada XP
  net: mvneta: introduce compatible string "marvell, armada-xp-neta"
  api: fix compatibility of linux/in.h with netinet/in.h
  net: icplus: fix typo in constant name
  sis900: Trivial: Fix typos in enums
  stmmac: Trivial: fix typo in constant name
  sctp: Fix race between OOTB responce and route removal
  net-Liquidio: Delete unnecessary checks before the function call "vfree"
  vmxnet3: Bump up driver version number
  amd-xgbe: Add the __GFP_NOWARN flag to Rx buffer allocation
  net: phy: mdio-bcm-unimac: workaround initial read failures for integrated PHYs
  net: bcmgenet: workaround initial read failures for integrated PHYs
  net: phy: bcm7xxx: workaround MDIO management controller initial read
  bnx2x: fix DMA API usage
  net: via: VIA_RHINE and VIA_VELOCITY should depend on HAS_DMA
  net/phy: tune get_phy_c45_ids to support more c45 phy
  bnx2x: fix lockdep splat
  net: fec: don't access RACC register when not available
  ...
2015-07-01 14:58:07 -07:00
Miklos Szeredi
00c570f4ba fuse: device fd clone
Allow an open fuse device to be "cloned".  Userspace can create a clone by:

      newfd = open("/dev/fuse", O_RDWR)
      ioctl(newfd, FUSE_DEV_IOC_CLONE, &oldfd);

At this point newfd will refer to the same fuse connection as oldfd.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
2015-07-01 16:26:08 +02:00
Michael S. Tsirkin
8b0a9d4230 virtio_net: document VIRTIO_NET_CTRL_GUEST_OFFLOADS
Document VIRTIO_NET_CTRL_GUEST_OFFLOADS and the
relevant feature bits.

Will allow ethtool control of the offloads down the road.

Reported-by: Yan Vugenfirer <yan@daynix.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-07-01 10:11:17 +02:00