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2014-03-26drm/nvc0/fifo: attempt to recover from engine ctxsw timeoutsBen Skeggs
My test cases don't seem to trigger this on all Fermi boards, not sure if they're broken tests or it didn't work until later versions. GF119 definitely works. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: attempt to recover engines from mmu faultsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: use subdev identifiers for bar/ifb fault recovery casesBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: use runlist event instead of pollingBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: allow channels to be marked as unrunnableBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: sched intrBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: single printk for mmu fault dataBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: ack pb intr individually after handling each unitBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: runlist intrBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: engine intrBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: mask unhandled intr bits when seen, rather than all intrsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvc0/fifo: rename a couple of unitsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nvd0/disp: add debugging to show which supervisor actions are takenBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nv50-/disp: dump channel state when update method failsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nv50-/disp: allow dumping core channel state at first supervisor intrBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nv50-/disp: add method descriptions for debuggingBen Skeggs
Lists of known methods for the DMA channel classes, and mappings to their priv register addresses (where known). Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nv50/disp: decode the known error codes to human readable formBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nv50/disp: preparation for storing static class dataBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nouveau/core: extend width of engine mask for namedbBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nouveau/bios: fix INDEX_ADDRESS_LATCHED trace printoutIlia Mirkin
Having a \n in the middle of a format string means that the next line doesn't get the prefixes unlike every other line printed by the trace. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nv50/gr: decode texture trap status codeIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nouveau: use nv_debug for NV_DEBUG, make DRM a separate subflagIlia Mirkin
It's really confusing for NV_DEBUG's printing to be controlled via drm.debug while everything else is controlled via nouveau.debug. These messages can be turned on with nouveau.debug=DRM=debug. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nouveau: make hdmi device finding failure prints debug levelIlia Mirkin
The hdmi device is required for runtime pm. However it is not available on many esp older devices, which were all seeing these error messages. Take this opportunity to also convert to nv_debug instead of the DRM_* messages, like the rest of nouveau does. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nve0/fifo: allocate usermem as neededAlexandre Courbot
Memory was always allocated for 4096 channels. Change this to allocate what we actually need according to the number of channels we use. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nouveau: handle -EACCES runtime PM return codeAlexandre Courbot
pm_runtime_get*() may return -EACCES to indicate a device does not have runtime PM enabled. This is currently the case with platform devices on Nouveau, and is not an error in that context. Handle this case without failure. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nouveau/abi16: fix handles past the 32nd oneIlia Mirkin
abi16->handles is a u64, so make sure to use 1ULL << val when modifying. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nouveau: replace ffsll with __ffs64Ilia Mirkin
The ffsll function is a lot slower than the __ffs64 built-in which compiles to a single instruction on 64-bit. It's also nice to avoid custom versions of standard functions. Note that __ffs == ffs - 1. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nouveau/hwmon: replace strict_strtol() with kstrtol()Jingoo Han
The usage of strict_strtol() is not preferred, because strict_strtol() is obsolete. Thus, kstrtol() should be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nouveau/hwmon: remove some redundant checksDan Carpenter
No need to check "ret" twice in a row. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26drm/nv50/graph: update status enum namesIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-25Revert "sysfs, driver-core: remove unused ↵Greg Kroah-Hartman
{sysfs|device}_schedule_callback_owner()" This reverts commit d1ba277e79889085a2faec3b68b91ce89c63f888. As reported by Stephen, this patch breaks linux-next as a ppc patch suddenly (after 2 years) started using this old api call. So revert it for now, it will go away in 3.15-rc2 when we can change the PPC call to the new api. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Tejun Heo <tj@kernel.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-25tracing: Fix traceon trigger condition to actually turn tracing onSteven Rostedt (Red Hat)
While working on my tutorial for 2014 Linux Collaboration Summit I found that the traceon trigger did not work when conditions were used. The other triggers worked fine though. Looking into it, it is because of the way the triggers use the ring buffer to store the fields it will use for the condition. But if tracing is off, nothing is stored in the buffer, and the tracepoint exits before calling the trigger to test the condition. This is fine for all the triggers that only work when tracing is on, but for traceon trigger that is to work when tracing is off, nothing happens. The fix is simple, just use a temp ring buffer to record the event if tracing is off and the event has a trace event conditional trigger enabled. The rest of the tracepoint code will work just fine, but the tracepoint wont be recorded in the other buffers. Cc: Tom Zanussi <tom.zanussi@linux.intel.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-03-25Merge branch 'bnx2x-next'David S. Miller
Yuval Mintz says: ==================== bnx2x: SR-IOV patch series (With the exception of the first patch) This series contains IOV-related patches, where the main changes are related to the driver's IOV-support backbone - it adds a new workqueue for IOV related tasks and removes the vfop mechanism from the driver. Please consider applying this series to `net-next'. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25bnx2x: Don't allow VFs to become promiscuousYuval Mintz
Currently, if a VF's Rx Mode will be configured to support promiscuous mode the PF will comply, causing the VF to actually become promiscuous. This will enable the VF to see all unicast traffic which might be intended for other VMs, which we believe should not be possible. This patch will cause the hypervisor to ignore the VF's request for changes in its Rx mode (other than disabling it), preventing it from becoming promiscuous. Reported-by: Yoann Juet <yoann.juet@univ-nantes.fr> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25bnx2x: Don't show port statistics for VFsYuval Mintz
VFs are currently showing port statistics, although they can't really access those - thus all such statistics will always show a value of 0. This patch removes said statistics from the VF's view as to not confuse the user. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25bnx2x: Remove the sriov VFOP mechanismYuval Mintz
Since we now posses a workqueue dedicated for sriov, the paradigm that sriov- related tasks cannot sleep is no longer correct. The VFOP mechanism was the one previously supporting said paradigm - the sriov related tasks were broken into segments which did not require sleep, and the mechanism re-scheduled the next segment whenever possible. This patch remvoes the VFOP mechanism altogether - the resulting code is a much easier to follow code; The segments are gathered into straight-forward functions which sleep whenever neccessary. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25bnx2x: Create workqueue for IOV related tasksYuval Mintz
The bnx2x sriov mechanisms were done in the bnx2x slowpath workitem which runs on the bnx2x's workqueue; This workitem is also responsible for the bottom half of interrupt handling in the driver, and specifically it also receives FW notifications of ramrod completions, allowing other flows to progress. The original design of the sriov reltaed-flows was based on the notion such flows must not sleep, since their context is the slowpath workitem. Otherwise, we might reach timeouts - those flows may wait for ramrod completion that will never arrive as the workitem wlll not be re-scheduled until that same flow will be over. In more recent time bnx2x started supporting features in which the VF interface can be configured by the tools accessing the PF on the hypervisor. This support created possible races on the VF-PF lock (which is taken either when the PF is handling a VF message or when the PF is doing some slowpath work on behalf of the VF) which may cause timeouts on the VF side and lags on the PF side. This patch changes the scheme - it creates a new workqueue for sriov related tasks and moves all handling currently done in the slowpath task into the the new workqueue. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25bnx2x: Support mng. request for driver versionYuval Mintz
This adds support in a new management feature which needs the driver versions (bnx2x, bnx2fc and bnx2i) loaded for each interface. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25atm: idt77105: Use del_timer_sync() in exit pathThomas Gleixner
The module is about to go away. Make sure everything is stopped safely before we pull the plug. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chas Williams <chas@cmf.nrl.navy.mil> Cc: atm <linux-atm-general@lists.sourceforge.net> Cc: netdev <netdev@vger.kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25atm: firestream: Use del_timer_sync() in teardown pathThomas Gleixner
The device is about to vanish. So we need to make sure that the timer is completely stopped and the callback is not running on another CPU. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chas Williams <chas@cmf.nrl.navy.mil> Cc: atm <linux-atm-general@lists.sourceforge.net> Cc: netdev <netdev@vger.kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25mlx4: Use actual number of PCI functions (PF + VFs) for alias GUID logicMatan Barak
The code which is dealing with SRIOV alias GUIDs in the mlx4 IB driver has some logic which operated according to the maximal possible active functions (PF + VFs). After the single port VFs code integration this resulted in a flow of false-positive warnings going to the kernel log after the PF driver started the alias GUID work. Fix it by referring to the actual number of functions. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25fs: remove now stale label in anon_inode_init()Linus Torvalds
The previous commit removed the register_filesystem() call and the associated error handling, but left the label for the error path that no longer exists. Remove that too. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-25fs: Avoid userspace mounting anon_inodefs filesystemJan Kara
anon_inodefs filesystem is a kernel internal filesystem userspace shouldn't mess with. Remove registration of it so userspace cannot even try to mount it (which would fail anyway because the filesystem is MS_NOUSER). This fixes an oops triggered by trinity when it tried mounting anon_inodefs which overwrote anon_inode_inode pointer while other CPU has been in anon_inode_getfile() between ihold() and d_instantiate(). Thus effectively creating dentry pointing to an inode without holding a reference to it. Reported-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: Documentation/devicetree/bindings/net/micrel-ks8851.txt net/core/netpoll.c The net/core/netpoll.c conflict is a bug fix in 'net' happening to code which is completely removed in 'net-next'. In micrel-ks8851.txt we simply have overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25x86, vdso, build: Don't rebuild 32-bit vdsos on every makeAndy Lutomirski
vdso32/vclock_gettime.o was confusing kbuild. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Stefani Seibold <stefani@seibold.net> Link: http://lkml.kernel.org/r/d741449340642213744dd659471a35bb970a0c4c.1395789923.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-26ARM: sun7i/sun6i: irqchip: Update the documentationCarlo Caione
Add documentation for NMI irqchip. Signed-off-by: Carlo Caione <carlo@caione.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@googlegroups.com Cc: mark.rutland@arm.com Cc: hdegoede@redhat.com Acked-by: maxime.ripard@free-electrons.com Link: http://lkml.kernel.org/r/1395256879-8475-4-git-send-email-carlo@caione.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-26ARM: sun7i/sun6i: dts: Add NMI irqchip supportCarlo Caione
This patch adds DTS entries for NMI controller as child of GIC. Signed-off-by: Carlo Caione <carlo@caione.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@googlegroups.com Cc: mark.rutland@arm.com Cc: hdegoede@redhat.com Acked-by: maxime.ripard@free-electrons.com Link: http://lkml.kernel.org/r/1395256879-8475-3-git-send-email-carlo@caione.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-26ARM: sun7i/sun6i: irqchip: Add irqchip driver for NMI controllerCarlo Caione
Allwinner A20/A31 SoCs have special registers to control / (un)mask / acknowledge NMI. This NMI controller is separated and independent from GIC. This patch adds a new irqchip to manage NMI. Signed-off-by: Carlo Caione <carlo@caione.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@googlegroups.com Cc: mark.rutland@arm.com Cc: hdegoede@redhat.com Link: http://lkml.kernel.org/r/1395256879-8475-2-git-send-email-carlo@caione.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-26tick: Remove code duplication in tick_handle_periodic()Viresh Kumar
tick_handle_periodic() is calling ktime_add() at two places, first before the infinite loop and then at the end of infinite loop. We can rearrange code a bit to fix code duplication here. It looks quite simple and shouldn't break anything, I guess :) Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: linaro-kernel@lists.linaro.org Cc: fweisbec@gmail.com Link: http://lkml.kernel.org/r/be3481e8f3f71df694a4b43623254fc93ca51b59.1395735873.git.viresh.kumar@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-26tick: Fix spelling mistake in tick_handle_periodic()Viresh Kumar
One of the comments in tick_handle_periodic() had 'when' instead of 'which' (My guess :)). Fix it. Also fix spelling mistake in 'Possible'. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: linaro-kernel@lists.linaro.org Cc: skarafotis@gmail.com Link: http://lkml.kernel.org/r/2b29ca4230c163e44179941d7c7a16c1474385c2.1395743878.git.viresh.kumar@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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