summaryrefslogtreecommitdiffstats
path: root/drivers
AgeCommit message (Collapse)Author
2013-08-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID fixes from Jiri Kosina: - fix hid-sony PS3 sixaxxis breakage from Benjamin Tissories - fix hidraw race condition from Yonghua Zheng - fix/bandaid for rare device enumeration problems of Logitech Unifying receivers from Nestor Lopez Casado * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: hidraw: fix improper mutex release HID: sony: fix HID mapping for PS3 sixaxis controller HID: hid-logitech-dj: querying_devices was never set HID: Revert "Revert "HID: Fix logitech-dj: missing Unifying device issue""
2013-08-02Merge tag 'pci-v3.11-fixes-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: "Yinghai fixed a couple regressions: one resource assignment problem introduced in v3.10 that showed up with SR-IOV on powerpc, and another SR-IOV hot-remove issue related to refcounting changes we merged for v3.11. Yinghai is still working on another SR-IOV-related fix or two, which will be simpler if pciehp is non-modular, so I included the Kconfig changes now to get them in earlier. Finally, a minor fix for the ARM Marvell EBU host bridge driver that was merged for v3.11 Hotplug: PCI: pciehp: Fix null pointer deref when hot-removing SR-IOV device PCI: hotplug: Convert to be builtin only, not modular PCI: pciehp: Convert pciehp to be builtin only, not modular Resource allocation: PCI: Retry allocation of only the resource type that failed ARM: PCI: mvebu: Disable prefetchable memory support in PCI-to-PCI bridge" * tag 'pci-v3.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: mvebu: Disable prefetchable memory support in PCI-to-PCI bridge PCI: Retry allocation of only the resource type that failed PCI: pciehp: Convert pciehp to be builtin only, not modular PCI: hotplug: Convert to be builtin only, not modular PCI: pciehp: Fix null pointer deref when hot-removing SR-IOV device
2013-08-02Merge tag 'pm+acpi-3.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael Wysocki: - Revert two cpuidle commits added during the 3.8 development cycle that turn out to have introduced a significant performance regression as requested by Jeremy Eder. - The recent patches that made the freezer less heavy-weight introduced a regression causing user-space-driven hibernation using the ioctl() interface to block indefinitely when the hibernate process executes try_to_freeze(). Fix from Colin Cross addresses this by adding a process flag to mark the hibernate/suspend process to inform the freezer that that process should be ignored. - One of the recent cpufreq reverts uncovered a problem in the core causing the cpufreq driver module refcount to become negative after a system suspend-resume cycle. Fix from Rafael J Wysocki. - The evaluation of the ACPI battery _BIX method has never worked correctly, because the commit that added support for it forgot to take the "Revision" field in the return package into account. As a result, the reading of battery info doesn't work at all on some systems, which is addressed by a fix from Lan Tianyu. * tag 'pm+acpi-3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: freezer: set PF_SUSPEND_TASK flag on tasks that call freeze_processes ACPI / battery: Fix parsing _BIX return value cpufreq: Fix cpufreq driver module refcount balance after suspend/resume Revert "cpuidle: Quickly notice prediction failure for repeat mode" Revert "cpuidle: Quickly notice prediction failure in general case"
2013-08-01PCI: mvebu: Disable prefetchable memory support in PCI-to-PCI bridgeThomas Petazzoni
The Marvell PCIe driver uses an emulated PCI-to-PCI bridge to be able to dynamically set up MBus address decoding windows for PCI I/O and memory regions depending on the PCI devices enumerated by Linux. However, this emulated PCI-to-PCI bridge logic makes the Linux PCI core believe that prefetchable memory regions are supported (because the registers are read/write), while in fact no adress decoding window is ever created for such regions. Since the Marvell MBus address decoding windows do not distinguish memory regions and prefetchable memory regions, this patch takes a simple approach: change the PCI-to-PCI bridge emulation to let the Linux PCI core know that we don't support prefetchable memory regions. To achieve this, we simply make the prefetchable memory base a read-only register that always returns 0. Reading/writing all the other prefetchable memory related registers has no effect. This problem was originally reported by Finn Hoffmann <finn@uni-bremen.de>, who couldn't get a RTL8111/8168B PCI NIC working on the NSA310 Kirkwood platform after updating to 3.11-rc. The problem was that the PCI-to-PCI bridge emulation was making the Linux PCI core believe that we support prefetchable memory, so the Linux PCI core was only filling the prefetchable memory base and limit registers, which does not lead to a MBus window being created. The below patch has been confirmed by Finn Hoffmann to fix his problem on Kirkwood, and has otherwise been successfully tested on the Armada XP GP platform with a e1000e PCIe NIC and a Marvell SATA PCIe card. Reported-by: Finn Hoffmann <finn@uni-bremen.de> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2013-07-31Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Radeon, nouveau, exynos, intel, mgag200.. Not all strictly regressions but there was probably only one patch I'd have really left out and it didn't seem worth respinning exynos to avoid it, the line change count is quite low. radeon: regressions + more dynamic powermanagement fixes, since DPM is a new feature, and off by default I'd prefer to keep merging fixes since it has a large userbase already and I'd like to keep them on mainline nouveau: is mostly regression fixes i915: is a regression fix since Daniel is on holidays I've merged it. mgag200: I've picked a bunch of targetted fixes from a big bunch of distro patches, exynos: build fixes mostly, one regression fix I expect things will slow right down now, I may send on the intel early quirk from Jesse separatly, since I think the x86 maintainers acked it" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (37 commits) drm/i915: fix missed hunk after GT access breakage drm/radeon/dpm: re-enable cac control on SI drm/radeon/dpm: fix calculations in si_calculate_leakage_for_v_and_t_formula drm: fix 64 bit drm fixed point helpers drm/radeon/atom: initialize more atom interpretor elements to 0 drm/nouveau: fix semaphore dmabuf obj drm/nouveau/vm: make vm refcount into a kref drm/nv31/mpeg: don't recognize nv3x cards as having nv44 graph class drm/nv40/mpeg: write magic value to channel object to make it work drm/nouveau: fix size check for cards without vm drm/nv50-/disp: remove dcb_outp_match call, and related variables drm/nva3-/disp: fix hda eld writing, needs to be padded drm/nv31/mpeg: fix mpeg engine initialization drm/nv50/mc: include vp in the fb error reporting mask drm/nouveau: fix null pointer dereference in poll_changed drm/nv50/gpio: post-nv92 cards have 32 interrupt lines drm/nvc0/fb: take lock in nvc0_ram_put() drm/nouveau/core: xtensa firmware size needs to be 0x40000 no matter what drm/mgag200: Fix LUT programming for 16bpp drm/mgag200: Fix framebuffer pitch calculation ...
2013-07-31Merge tag 'fbdev-fixes-3.11-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev fixes from Tomi Valkeinen: "Small fbdev fixes: - compile fixes - atyfb initialization fix - Fix freeing of the irq in sh7760fb & nuc900fb" * tag 'fbdev-fixes-3.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: video: sh7760fb: fix to pass correct device identity to free_irq() fbdev/atyfb: fix recent breakage in correct_chipset() fbdev/sgivwfb: fix compilation error in sgivwfb_mmap() video: nuc900fb: fix to pass correct device identity to request_irq() vga16fb: Remove unused variable video: xilinxfb: Fix compilation warning
2013-07-31Merge tag 'vfio-v3.11-rc4' of git://github.com/awilliam/linux-vfioLinus Torvalds
Pull vfio fixes from Alex Williamson: "misc fixes around overreacting to bus notifier events and a locking fix for a corner case blocked remove" * tag 'vfio-v3.11-rc4' of git://github.com/awilliam/linux-vfio: vfio-pci: Avoid deadlock on remove vfio: Ignore sprurious notifies vfio: Don't overreact to DEL_DEVICE
2013-07-31Merge branch 'akpm' (patches from Andrew Morton)Linus Torvalds
Merge more patches from Andrew Morton: "A bunch of fixes. Plus Joe's printk move and rework. It's not a -rc3 thing but now would be a nice time to offload it, while things are quiet. I've been sitting on it all for a couple of weeks, no issues" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: vmpressure: make sure there are no events queued after memcg is offlined vmpressure: do not check for pending work to prevent from new work vmpressure: change vmpressure::sr_lock to spinlock printk: rename struct log to struct printk_log printk: use pointer for console_cmdline indexing printk: move braille console support into separate braille.[ch] files printk: add console_cmdline.h printk: move to separate directory for easier modification drivers/rtc/rtc-twl.c: fix: rtcX/wakealarm attribute isn't created mm: zbud: fix condition check on allocation size thp, mm: avoid PageUnevictable on active/inactive lru lists mm/swap.c: clear PageActive before adding pages onto unevictable list arch/x86/platform/ce4100/ce4100.c: include reboot.h mm: sched: numa: fix NUMA balancing when !SCHED_DEBUG rapidio: fix use after free in rio_unregister_scan() .gitignore: ignore *.lz4 files MAINTAINERS: dynamic debug: Jason's not there... dmi_scan: add comments on dmi_present() and the loop in dmi_scan_machine() ocfs2/refcounttree: add the missing NULL check of the return value of find_or_create_page() mm: mempolicy: fix mbind_range() && vma_adjust() interaction
2013-08-01Merge branches 'for-3.11/upstream-fixes' and ↵Jiri Kosina
'for-3.11/logitech-enumeration-fix' into for-linus
2013-07-31printk: move braille console support into separate braille.[ch] filesJoe Perches
Create files with prototypes and static inlines for braille support. Make braille_console functions return 1 on success. Corrected CONFIG_A11Y_BRAILLE_CONSOLE=n _braille_console_setup return value to NULL. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Ming Lei <ming.lei@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-31drivers/rtc/rtc-twl.c: fix: rtcX/wakealarm attribute isn't createdGrygorii Strashko
The device_init_wakeup() should be called before rtc_device_register(). Otherwise, sysfs "sys/class/rtc/rtcX/wakealarm" attribute will not be seen from User space. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Kevin Hilman <khilman@linaro.org> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-31rapidio: fix use after free in rio_unregister_scan()Dan Carpenter
We're freeing the list iterator so we can't move to the next entry. Since there is only one matching mport_id, we can just break after finding it. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-31dmi_scan: add comments on dmi_present() and the loop in dmi_scan_machine()Ben Hutchings
My previous refactoring in commit 79bae42d51a5 ("dmi_scan: refactor dmi_scan_machine(), {smbios,dmi}_present()") resulted in slightly tricky code (though I think it's more elegant). Explain what it's doing. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Zhenzhong Duan <zhenzhong.duan@oracle.com> Cc: Jean Delvare <jdelvare@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix association failures not triggering a connect-failure event in cfg80211, from Johannes Berg. 2) Eliminate a potential NULL deref with older iptables tools when configuring xt_socket rules, from Eric Dumazet. 3) Missing RTNL locking in wireless regulatory code, from Johannes Berg. 4) Fix OOPS caused by firmware loading races in ath9k_htc, from Alexey Khoroshilov. 5) Fix usb URB leak in usb_8dev CAN driver, also from Alexey Khoroshilov. 6) VXLAN namespace teardown fails to unregister devices, from Stephen Hemminger. 7) Fix multicast settings getting dropped by firmware in qlcnic driver, from Sucheta Chakraborty. 8) Add sysctl range enforcement for tcp_syn_retries, from Michal Tesar. 9) Fix a nasty bug in bridging where an active timer would get reinitialized with a setup_timer() call. From Eric Dumazet. 10) Fix use after free in new mlx5 driver, from Dan Carpenter. 11) Fix freed pointer reference in ipv6 multicast routing on namespace cleanup, from Hannes Frederic Sowa. 12) Some usbnet drivers report TSO and SG in their feature set, but the usbnet layer doesn't really support them. From Eric Dumazet. 13) Fix crash on EEH errors in tg3 driver, from Gavin Shan. 14) Drop cb_lock when requesting modules in genetlink, from Stanislaw Gruszka. 15) Kernel stack leaks in cbq scheduler and af_key pfkey messages, from Dan Carpenter. 16) FEC driver erroneously signals NETDEV_TX_BUSY on transmit leading to endless loops, from Uwe Kleine-König. 17) Fix hangs from loading mvneta driver, from Arnaud Patard. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (84 commits) mlx5: fix error return code in mlx5_alloc_uuars() mvneta: Try to fix mvneta when compiled as module mvneta: Fix hang when loading the mvneta driver atl1c: Fix misuse of netdev_alloc_skb in refilling rx ring genetlink: fix usage of NLM_F_EXCL or NLM_F_REPLACE af_key: more info leaks in pfkey messages net/fec: Don't let ndo_start_xmit return NETDEV_TX_BUSY without link net_sched: Fix stack info leak in cbq_dump_wrr(). igb: fix vlan filtering in promisc mode when not in VT mode ixgbe: Fix Tx Hang issue with lldpad on 82598EB genetlink: release cb_lock before requesting additional module net: fec: workaround stop tx during errata ERR006358 qlcnic: Fix diagnostic interrupt test for 83xx adapters. qlcnic: Fix setting Guest VLAN qlcnic: Fix operation type and command type. qlcnic: Fix initialization of work function. Revert "atl1c: Fix misuse of netdev_alloc_skb in refilling rx ring" atl1c: Fix misuse of netdev_alloc_skb in refilling rx ring net/tg3: Fix warning from pci_disable_device() net/tg3: Fix kernel crash ...
2013-07-31Merge tag 'stable/for-linus-3.11-rc3-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull Xen fixes from Konrad Rzeszutek Wilk: - Three fixes for ARM/ARM64 to either compile or not certain generic drivers - Fix for avoiding a potential deadlock when an user space event channel is destroyed. - Fix a workqueue resuming multiple times. * tag 'stable/for-linus-3.11-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/tmem: do not allow XEN_TMEM on ARM64 xen/evtchn: avoid a deadlock when unbinding an event channel xen/arm: enable PV control for ARM xen/arm64: Don't compile cpu hotplug xenbus: frontend resume cleanup
2013-07-31Merge tag 'usb-3.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some tiny USB fixes for 3.11-rc4 Nothing major, some gadget fixes, some new device ids, a new tiny driver for the ANT+ USB device, and a number of fixes for the mos7840 driver that were much needed" * tag 'usb-3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: serial: ftdi_sio: add more RT Systems ftdi devices usb: chipidea: fix the build error with randconfig usb: chipidea: cast PORTSC_PTS and DEVLC_PTS macros usb: gadget: udc-core: fix the typo of udc state attribute usb: gadget: f_phonet: remove unused preprocessor conditional usb: gadget: multi: fix error return code in cdc_do_config() USB: mos7840: fix pointer casts USB: mos7840: fix race in led handling USB: mos7840: fix device-type detection USB: mos7840: fix race in register handling USB: serial: add driver for Suunto ANT+ USB device usb: gadget: free opts struct on error recovery usb: gadget: ether: put_usb_function on unbind usb: musb: fix resource passed from glue layer to musb
2013-07-31Merge tag 'tty-3.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver fixes from Greg KH: "Here are 4 tiny tty and serial driver fixes for 3.11-rc4. Nothing big, a refcount leak, a module alias fix, and two fixes to the mxs-auart serial driver" * tag 'tty-3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: serial: arc_uart: Fix module alias tty_port: Fix refcounting leak in tty_port_tty_hangup() serial/mxs-auart: increase time to wait for transmitter to become idle serial/mxs-auart: fix race condition in interrupt handler
2013-07-31HID: hidraw: fix improper mutex releaseYonghua Zheng
Mutex can not be released unless all hid_device members are properly initialized. Otherwise it would result in a race condition that can cause NULL pointer kernel panic issue in hidraw_open where it uses uninitialized 'list' member in list_add_tail(). Signed-off-by: Yonghua Zheng <younghua.zheng@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-07-30mlx5: fix error return code in mlx5_alloc_uuars()Wei Yongjun
Fix to return -ENOMEM from the ioremap error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-30mvneta: Try to fix mvneta when compiled as moduleArnaud Patard \(Rtp\)
When the mvneta driver is compiled as module, the clock is disabled before it's loading. This will reset the registers values and all configuration made by the bootloader. This patch sets the "sgmii serdes configuration" register to a magical value found in: https://github.com/yellowback/ubuntu-precise-armadaxp/blob/master/arch/arm/mach-armadaxp/armada_xp_family/ctrlEnv/mvCtrlEnvLib.c With this change, the interrupts are working/generated and ethernet is working. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-30mvneta: Fix hang when loading the mvneta driverArnaud Patard \(Rtp\)
When the mvneta driver is compiled, it'll be loaded with clocks disabled. This implies that the clocks should be enabled again before any register access or it'll hang. To fix it: - enable clock earlier - move timer callback after setting timer.data Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-30atl1c: Fix misuse of netdev_alloc_skb in refilling rx ringEric Dumazet
On Mon, 2013-07-29 at 08:30 -0700, Eric Dumazet wrote: > On Mon, 2013-07-29 at 13:09 +0100, Luis Henriques wrote: > > > > > I confirm that I can't reproduce the issue using this patch. > > > > Thanks, I'll send a polished patch, as this one had an error if > build_skb() returns NULL (in case sk_buff allocation fails) Please try the following patch : It should use 2K frags instead of 4K for normal 1500 mtu Thanks ! [PATCH] atl1c: use custom skb allocator We had reports ( https://bugzilla.kernel.org/show_bug.cgi?id=54021 ) that using high order pages for skb allocations is problematic for atl1c We do not know exactly what the problem is, but we suspect that crossing 4K pages is not well supported by this hardware. Use a custom allocator, using page allocator and 2K fragments for optimal stack behavior. We might make this allocator generic in future kernels. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Luis Henriques <luis.henriques@canonical.com> Cc: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-31drm/i915: fix missed hunk after GT access breakageBen Widawsky
Upon some code refactoring, a hunk was missed. This was fixed for next, but missed the current trees, and hasn't yet been merged by Dave Airlie. It is fixed in: commit 907b28c56ea40629aa6595ddfa414ec2fc7da41c Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Fri Jul 19 20:36:52 2013 +0100 drm/i915: Colocate all GT access routines in the same file It is introduced by: commit 181d1b9e31c668259d3798c521672afb8edd355c Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Sun Jul 21 13:16:24 2013 +0200 drm/i915: fix up gt init sequence fallout Reported-by: Dave Jones <davej@redhat.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-07-30net/fec: Don't let ndo_start_xmit return NETDEV_TX_BUSY without linkUwe Kleine-König
Don't test for having link and let hardware deal with this situation. Without this patch I see a machine running an -rt patched Linux being stuck in sch_direct_xmit when it looses link while there is still a packet to be sent. In this case the fec_enet_start_xmit routine returned NETDEV_TX_BUSY which makes the network stack reschedule the packet and so sch_direct_xmit calls fec_enet_start_xmit again. I failed to reproduce a complete hang without -rt, but I think the problem exists there, too. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-31Merge branch 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linuxDave Airlie
Alex writes: - more fixes for SI dpm - fix DP on some rv6xx boards * 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux: drm/radeon/dpm: re-enable cac control on SI drm/radeon/dpm: fix calculations in si_calculate_leakage_for_v_and_t_formula drm: fix 64 bit drm fixed point helpers drm/radeon/atom: initialize more atom interpretor elements to 0
2013-07-30drm/radeon/dpm: re-enable cac control on SIAlex Deucher
Now that the fixed point functions are fixed we can re-enable cac support. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-30drm/radeon/dpm: fix calculations in si_calculate_leakage_for_v_and_t_formulaAlex Deucher
Need to make some slight adjustments for the fixed point math to work properly. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-07-30drm/radeon/atom: initialize more atom interpretor elements to 0Alex Deucher
The ProcessAuxChannel table on some rv635 boards assumes the divmul members are initialized to 0 otherwise we get an invalid fb offset since it has a bad mask set when setting the fb base. While here initialize all the atom interpretor elements to 0. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60639 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2013-07-30xen/tmem: do not allow XEN_TMEM on ARM64Stefano Stabellini
tmem is not supported on arm or arm64 yet. Will revert this once the Xen hypervisor supports it. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-07-30xen/evtchn: avoid a deadlock when unbinding an event channelDavid Vrabel
Unbinding an event channel (either with the ioctl or when the evtchn device is closed) may deadlock because disable_irq() is called with port_user_lock held which is also locked by the interrupt handler. Think of the IOCTL_EVTCHN_UNBIND is being serviced, the routine has just taken the lock, and an interrupt happens. The evtchn_interrupt is invoked, tries to take the lock and spins forever. A quick glance at the code shows that the spinlock is a local IRQ variant. Unfortunately that does not help as "disable_irq() waits for the interrupt handler on all CPUs to stop running. If the irq occurs on another VCPU, it tries to take port_user_lock and can't because the unbind ioctl is holding it." (from David). Hence we cannot depend on the said spinlock to protect us. We could make it a system wide IRQ disable spinlock but there is a better way. We can piggyback on the fact that the existence of the spinlock is to make get_port_user() checks be up-to-date. And we can alter those checks to not depend on the spin lock (as it's protected by u->bind_mutex in the ioctl) and can remove the unnecessary locking (this is IOCTL_EVTCHN_UNBIND) path. In the interrupt handler we cannot use the mutex, but we do not need it. "The unbind disables the irq before making the port user stale, so when you clear it you are guaranteed that the interrupt handler that might use that port cannot be running." (from David). Hence this patch removes the spinlock usage on the teardown path and piggybacks on disable_irq happening before we muck with the get_port_user() data. This ensures that the interrupt handler will never run on stale data. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [v1: Expanded the commit description a bit]
2013-07-30ACPI / battery: Fix parsing _BIX return valueLan Tianyu
The _BIX method returns extended battery info as a package. According the ACPI spec (ACPI 5, Section 10.2.2.2), the first member of that package should be "Revision". However, the current ACPI battery driver treats the first member as "Power Unit" which should be the second member. This causes the result of _BIX return data parsing to be incorrect. Fix this by adding a new member called 'revision' to struct acpi_battery and adding the offsetof() information on it to extended_info_offsets[] as the first row. [rjw: Changelog] Reported-and-tested-by: Jan Hoffmann <jan.christian.hoffmann@gmail.com> References: http://bugzilla.kernel.org/show_bug.cgi?id=60519 Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Cc: 2.6.34+ <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-07-30Merge branch 'drm-nouveau-next' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 nouveau fixes a number of regressions and a few user triggerable oops since -rc1. Along with a few mpeg engine fixes. * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nouveau: fix semaphore dmabuf obj drm/nouveau/vm: make vm refcount into a kref drm/nv31/mpeg: don't recognize nv3x cards as having nv44 graph class drm/nv40/mpeg: write magic value to channel object to make it work drm/nouveau: fix size check for cards without vm drm/nv50-/disp: remove dcb_outp_match call, and related variables drm/nva3-/disp: fix hda eld writing, needs to be padded drm/nv31/mpeg: fix mpeg engine initialization drm/nv50/mc: include vp in the fb error reporting mask drm/nouveau: fix null pointer dereference in poll_changed drm/nv50/gpio: post-nv92 cards have 32 interrupt lines drm/nvc0/fb: take lock in nvc0_ram_put() drm/nouveau/core: xtensa firmware size needs to be 0x40000 no matter what
2013-07-30drm/nouveau: fix semaphore dmabuf objMaarten Lankhorst
Fixes some dmabuf object errors on nv50 chipset and below. Cc: stable@vger.kernel.org [3.7+] Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nouveau/vm: make vm refcount into a krefBen Skeggs
Never used to be required, but a recent change made it necessary. Reported-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30Merge branch 'exynos-drm-fixes' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos This pull request fixes module build and g2d clock control issues, and includes related cleanup. * 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos: Remove module.h header inclusion drm/exynos: consider common clock framework to g2d driver. drm/exynos: fix module build error drm/exynos: exynos_drm_ipp: fix return value check
2013-07-30drm/nv31/mpeg: don't recognize nv3x cards as having nv44 graph classIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nv40/mpeg: write magic value to channel object to make it workIlia Mirkin
Looks like the rewrite in commit ebb945a94b ("drm/nouveau: port all engines to new engine module format") missed that one little detail. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nouveau: fix size check for cards without vmMaarten Lankhorst
Op 24-07-13 17:55, Dan Carpenter schreef: > Hello Maarten Lankhorst, > > This is a semi-automatic email about new static checker warnings. > > The patch 0108bc808107: "drm/nouveau: do not allow negative sizes for > now" from Jul 7, 2013, leads to the following Smatch complaint: > > drivers/gpu/drm/nouveau/nouveau_bo.c:222 nouveau_bo_new() > warn: variable dereferenced before check 'drm->client.base.vm' (see line 201) > > drivers/gpu/drm/nouveau/nouveau_bo.c > 200 int type = ttm_bo_type_device; > 201 int max_size = INT_MAX & ~((1 << drm->client.base.vm->vmm->lpg_shift) - 1); > ^^^^^^^^^^^^^^^^^^^ > New dereference. > > 202 > 203 if (size <= 0 || size > max_size) { > 204 nv_warn(drm, "skipped size %x\n", (u32)size); > 205 return -EINVAL; > 206 } > 207 > 208 if (sg) > 209 type = ttm_bo_type_sg; > 210 > 211 nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL); > 212 if (!nvbo) > 213 return -ENOMEM; > 214 INIT_LIST_HEAD(&nvbo->head); > 215 INIT_LIST_HEAD(&nvbo->entry); > 216 INIT_LIST_HEAD(&nvbo->vma_list); > 217 nvbo->tile_mode = tile_mode; > 218 nvbo->tile_flags = tile_flags; > 219 nvbo->bo.bdev = &drm->ttm.bdev; > 220 > 221 nvbo->page_shift = 12; > 222 if (drm->client.base.vm) { > ^^^^^^^^^^^^^^^^^^^ > Old check. > > 223 if (!(flags & TTM_PL_FLAG_TT) && size > 256 * 1024) > 224 nvbo->page_shift = drm->client.base.vm->vmm->lpg_shift; > > regards, > dan carpenter 8<----- Commit 0108bc808107: "drm/nouveau: do not allow negative sizes for now" broke older nvidia gpu's that lack a vm. Add an explicit check to handle this. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reported-by: konrad wilk <konrad.wilk@oracle.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nv50-/disp: remove dcb_outp_match call, and related variablesEmil Velikov
Unused and irrelavant since the code move of DP training/linkcontrol interrupt Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nva3-/disp: fix hda eld writing, needs to be paddedIlia Mirkin
Commits 0a9e2b959 (drm/nvd0/disp: move HDA codec setup to core) and a4feaf4ea (drm/nva3/disp: move hda codec handling to core) moved code around but neglected to fill data up to 0x60 as before. This caused /proc/asound/cardN/eld#3.0 to show eld_valid as 0. With this patch, that file is again populated with the correct data. See https://bugs.freedesktop.org/show_bug.cgi?id=67051 Reported-and-tested-by: Alex <alupu01@gmail.com> Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nv31/mpeg: fix mpeg engine initializationIlia Mirkin
object->engine is null, which leads to a null deref down the line Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nv50/mc: include vp in the fb error reporting maskIlia Mirkin
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nouveau: fix null pointer dereference in poll_changedMaarten Lankhorst
Fixes vgaswitcheroo on a card without display. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nv50/gpio: post-nv92 cards have 32 interrupt linesEmil Velikov
Since the original merge of nouveau to upstream kernel, we were assuming that nv90 (and later) cards have 32 lines. Based on mmio traces of the binary driver, as well as PBUS error messages during read/write of the e070/e074 registers, we can conclude that nv92 has only 16 lines whereas nv94 (and later) cards have 32. Reported-and-tested-by: David M. Lloyd <david.lloyd@redhat.com> Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com> Cc: dri-devel@lists.freedesktop.org Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nvc0/fb: take lock in nvc0_ram_put()Roy Spliet
Kernel panic caused by list corruption in ltcg seems to indicate a concurrency issue. Take mutex of pfb like nv50_ram_put() to eliminate concurrency. V2: Separate critical section into separate function, avoid taking the lock twice on NVC0 Signed-off-by: Roy Spliet <r.spliet@student.tudelft.nl> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-30drm/nouveau/core: xtensa firmware size needs to be 0x40000 no matter whatIlia Mirkin
The current logic is wrong since we send fw->size >> 8 to the card. Rounding the size up by 0x100 and 0x1000 didn't seem to help, the card still hung, so go back to what the blob does -- 0x40000. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-07-29Merge tag 'firewire-fix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 Pull firewire regression fix from Stefan Richter: "This fixes corrupted video capture, seen with IIDC/DCAM video and certain buffer settings. (Regression since v3.4 inclusive.)" * tag 'firewire-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: fix libdc1394/FlyCap2 iso event regression
2013-07-30drm/mgag200: Fix LUT programming for 16bppEgbert Eich
Since there are only 32 (64) distinct color values for each color in 16bpp Matrox hardware expects those in a 'dense' manner, ie in the first 32 (64) entries of the respective color. Signed-off-by: Egbert Eich <eich@suse.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-07-30drm/mgag200: Fix framebuffer pitch calculationTakashi Iwai
The framebuffer pitch calculation needs to be done differently for bpp == 24 - check xf86-video-mga for reference. Signed-off-by: Egbert Eich <eich@suse.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-07-30drm/mgag200: Add sysfs support for connectorsEgbert Eich
Signed-off-by: Egbert Eich <eich@suse.com> Signed-off-by: Dave Airlie <airlied@redhat.com>