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2014-03-14ARM: sunxi: dt: Convert to the new irq controller compatiblesMaxime Ripard3-3/+3
Switch the device tree to the new compatibles introduced in the irqchip drivers to have a common pattern accross all Allwinner SoCs. Signed-off-by: Maxime Ripard <[email protected]> Cc: [email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2014-03-14irqchip: sunxi: Change compatiblesMaxime Ripard2-3/+3
The Allwinner A10 compatibles were following a slightly different compatible patterns than the rest of the SoCs for historical reasons. Change the compatibles to match the other pattern in the irq controller driver for consistency. Signed-off-by: Maxime Ripard <[email protected]> Cc: [email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2014-03-14s390/ptrace: add support for PTRACE_SINGLEBLOCKMartin Schwidefsky4-1/+20
The PTRACE_SINGLEBLOCK option is used to get control whenever the inferior has executed a successful branch. The PER option to implement block stepping is successful-branching event, bit 32 in the PER-event mask. Signed-off-by: Martin Schwidefsky <[email protected]>
2014-03-14s390/perf: make print_debug_cf() staticHeiko Carstens1-1/+1
Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2014-03-14x86/amd/numa: Fix northbridge quirk to assign correct NUMA nodeDaniel J Blueman1-1/+1
For systems with multiple servers and routed fabric, all northbridges get assigned to the first server. Fix this by also using the node reported from the PCI bus. For single-fabric systems, the northbriges are on PCI bus 0 by definition, which are on NUMA node 0 by definition, so this is invarient on most systems. Tested on fam10h and fam15h single and multi-fabric systems and candidate for stable. Signed-off-by: Daniel J Blueman <[email protected]> Acked-by: Steffen Persvold <[email protected]> Acked-by: Borislav Petkov <[email protected]> Cc: <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2014-03-14perf/x86/uncore: Fix missing end markers for SNB/IVB/HSW IMC PMUStephane Eranian1-0/+3
This patch fixes a bug with the SNB/IVB/HSW uncore mmeory controller support. The PCI Ids tables for the memory controller were missing end markers. That could cause random crashes on boot during or after PCI device registration. Signed-off-by: Stephane Erainan <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/20140313120436.GA14236@quad Signed-off-by: Ingo Molnar <[email protected]> --
2014-03-13Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds6-17/+50
Pull drm fixes from Dave Airlie: "Pretty minor set of fixes for radeon, ttm and vmwgfx. The ttm ones are a regression and an oops seen on server chipsets" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/vmwgfx: Fix a surface reference corner-case in legacy emulation mode drm/radeon/cik: properly set compute ring status on disable drm/radeon/cik: stop the sdma engines in the enable() function drm/radeon/cik: properly set sdma ring status on disable drm/radeon: fix runpm disabling on non-PX harder drm/ttm: don't oops if no invalidate_caches() drm/ttm: Work around performance regression with VM_PFNMAP
2014-03-13Merge branch 'i2c/for-current' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c Kconfig fix from Wolfram Sang. * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: Remove usage of orphaned symbol OF_I2C
2014-03-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds70-550/+516
Pull networking fixes from David Miller: "I know this is a bit more than you want to see, and I've told the wireless folks under no uncertain terms that they must severely scale back the extent of the fixes they are submitting this late in the game. Anyways: 1) vmxnet3's netpoll doesn't perform the equivalent of an ISR, which is the correct implementation, like it should. Instead it does something like a NAPI poll operation. This leads to crashes. From Neil Horman and Arnd Bergmann. 2) Segmentation of SKBs requires proper socket orphaning of the fragments, otherwise we might access stale state released by the release callbacks. This is a 5 patch fix, but the initial patches are giving variables and such significantly clearer names such that the actual fix itself at the end looks trivial. From Michael S. Tsirkin. 3) TCP control block release can deadlock if invoked from a timer on an already "owned" socket. Fix from Eric Dumazet. 4) In the bridge multicast code, we must validate that the destination address of general queries is the link local all-nodes multicast address. From Linus Lüssing. 5) The x86 BPF JIT support for negative offsets puts the parameter for the helper function call in the wrong register. Fix from Alexei Starovoitov. 6) The descriptor type used for RTL_GIGA_MAC_VER_17 chips in the r8169 driver is incorrect. Fix from Hayes Wang. 7) The xen-netback driver tests skb_shinfo(skb)->gso_type bits to see if a packet is a GSO frame, but that's not the correct test. It should use skb_is_gso(skb) instead. Fix from Wei Liu. 8) Negative msg->msg_namelen values should generate an error, from Matthew Leach. 9) at86rf230 can deadlock because it takes the same lock from it's ISR and it's hard_start_xmit method, without disabling interrupts in the latter. Fix from Alexander Aring. 10) The FEC driver's restart doesn't perform operations in the correct order, so promiscuous settings can get lost. Fix from Stefan Wahren. 11) Fix SKB leak in SCTP cookie handling, from Daniel Borkmann. 12) Reference count and memory leak fixes in TIPC from Ying Xue and Erik Hugne. 13) Forced eviction in inet_frag_evictor() must strictly make sure all frags are deleted, otherwise module unload (f.e. 6lowpan) can crash. Fix from Florian Westphal. 14) Remove assumptions in AF_UNIX's use of csum_partial() (which it uses as a hash function), which breaks on PowerPC. From Anton Blanchard. The main gist of the issue is that csum_partial() is defined only as a value that, once folded (f.e. via csum_fold()) produces a correct 16-bit checksum. It is legitimate, therefore, for csum_partial() to produce two different 32-bit values over the same data if their respective alignments are different. 15) Fix endiannes bug in MAC address handling of ibmveth driver, also from Anton Blanchard. 16) Error checks for ipv6 exthdrs offload registration are reversed, from Anton Nayshtut. 17) Externally triggered ipv6 addrconf routes should count against the garbage collection threshold. Fix from Sabrina Dubroca. 18) The PCI shutdown handler added to the bnx2 driver can wedge the chip if it was not brought up earlier already, which in particular causes the firmware to shut down the PHY. Fix from Michael Chan. 19) Adjust the sanity WARN_ON_ONCE() in qdisc_list_add() because as currently coded it can and does trigger in legitimate situations. From Eric Dumazet. 20) BNA driver fails to build on ARM because of a too large udelay() call, fix from Ben Hutchings. 21) Fair-Queue qdisc holds locks during GFP_KERNEL allocations, fix from Eric Dumazet. 22) The vlan passthrough ops added in the previous release causes a regression in source MAC address setting of outgoing headers in some circumstances. Fix from Peter Boström" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (70 commits) ipv6: Avoid unnecessary temporary addresses being generated eth: fec: Fix lost promiscuous mode after reconnecting cable bonding: set correct vlan id for alb xmit path at86rf230: fix lockdep splats net/mlx4_en: Deregister multicast vxlan steering rules when going down vmxnet3: fix building without CONFIG_PCI_MSI MAINTAINERS: add networking selftests to NETWORKING net: socket: error on a negative msg_namelen MAINTAINERS: Add tools/net to NETWORKING [GENERAL] packet: doc: Spelling s/than/that/ net/mlx4_core: Load the IB driver when the device supports IBoE net/mlx4_en: Handle vxlan steering rules for mac address changes net/mlx4_core: Fix wrong dump of the vxlan offloads device capability xen-netback: use skb_is_gso in xenvif_start_xmit r8169: fix the incorrect tx descriptor version tools/net/Makefile: Define PACKAGE to fix build problems x86: bpf_jit: support negative offsets bridge: multicast: enable snooping on general queries only bridge: multicast: add sanity check for general query destination tcp: tcp_release_cb() should release socket ownership ...
2014-03-13x86, intel: Make MSR_IA32_MISC_ENABLE bit constants systematicH. Peter Anvin2-31/+57
Replace somewhat arbitrary constants for bits in MSR_IA32_MISC_ENABLE with verbose but systematic ones. Add _BIT defines for all the rest of them, too. Signed-off-by: H. Peter Anvin <[email protected]>
2014-03-13x86, Intel: Convert to the new bit access MSR accessorsBorislav Petkov2-26/+13
... and save some lines of code. Signed-off-by: Borislav Petkov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: H. Peter Anvin <[email protected]>
2014-03-13x86, AMD: Convert to the new bit access MSR accessorsBorislav Petkov1-36/+12
... and save us a bunch of code. Signed-off-by: Borislav Petkov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: H. Peter Anvin <[email protected]>
2014-03-13x86: Add another set of MSR accessor functionsBorislav Petkov2-1/+90
We very often need to set or clear a bit in an MSR as a result of doing some sort of a hardware configuration. Add generic versions of that repeated functionality in order to save us a bunch of duplicated code in the early CPU vendor detection/config code. Signed-off-by: Borislav Petkov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: H. Peter Anvin <[email protected]>
2014-03-13x86, pageattr: Correct WBINVD spelling in commentBorislav Petkov1-3/+3
It is WBINVD, for INValiDate and not "wbindv". Use caps for instruction names, while at it. Signed-off-by: Borislav Petkov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: H. Peter Anvin <[email protected]>
2014-03-13x86, crash: Unify ifdefBorislav Petkov1-2/+0
Merge two back-to-back CONFIG_X86_32 ifdefs into one. Signed-off-by: Borislav Petkov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: H. Peter Anvin <[email protected]>
2014-03-13x86, boot: Correct max ramdisk size nameBorislav Petkov2-3/+3
The name in struct bootparam is ->initrd_addr_max and not ramdisk_max. Fix that. Signed-off-by: Borislav Petkov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: H. Peter Anvin <[email protected]>
2014-03-13i2c: Remove usage of orphaned symbol OF_I2CRichard Weinberger1-1/+1
The symbol is an orphan, don't depend on it anymore. Signed-off-by: Richard Weinberger <[email protected]> [wsa: enhanced commit message] Signed-off-by: Wolfram Sang <[email protected]> Fixes: 687b81d083c0 (i2c: move OF helpers into the core) Cc: [email protected]
2014-03-13Merge branches 'pnp', 'acpi-init', 'acpi-sleep' and 'pm-cpufreq'Rafael J. Wysocki3-20/+18
* pnp: PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures * acpi-init: ACPI / init: Invoke early ACPI initialization later * acpi-sleep: ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep states * pm-cpufreq: cpufreq: Skip current frequency initialization for ->setpolicy drivers
2014-03-13ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep statesRafael J. Wysocki1-17/+15
If the HW Reduced ACPI mode bit is set in the FADT, ACPICA uses the optional sleep control and sleep status registers for making the system enter sleep states (including S5), so it is not possible to use system sleep states or power it off using ACPI if the HW Reduced ACPI mode bit is set and those registers are not available. For this reason, add a new function, acpi_sleep_state_supported(), checking if the HW Reduced ACPI mode bit is set and whether or not system sleep states are usable in that case in addition to checking the return value of acpi_get_sleep_type_data() and make the ACPI sleep setup routines use that function to check the availability of system sleep states. Among other things, this prevents the kernel from attempting to use ACPI for powering off HW Reduced ACPI systems without the sleep control and sleep status registers, because ACPI power off doesn't have a chance to work on them. That allows alternative power off mechanisms that may actually work to be used on those systems. The affected machines include Dell Venue 8 Pro, Asus T100TA, Haswell Desktop SDP and Ivy Bridge EP Demo depot. References: https://bugzilla.kernel.org/show_bug.cgi?id=70931 Reported-by: Adam Williamson <[email protected]> Tested-by: Aubrey Li <[email protected]> Cc: 3.4+ <[email protected]> # 3.4+ Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-03-13ipv6: Avoid unnecessary temporary addresses being generatedHeiner Kallweit1-1/+4
tmp_prefered_lft is an offset to ifp->tstamp, not now. Therefore age needs to be added to the condition. Age calculation in ipv6_create_tempaddr is different from the one in addrconf_verify and doesn't consider ADDRCONF_TIMER_FUZZ_MINUS. This can cause age in ipv6_create_tempaddr to be less than the one in addrconf_verify and therefore unnecessary temporary address to be generated. Use age calculation as in addrconf_modify to avoid this. Signed-off-by: Heiner Kallweit <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-03-13eth: fec: Fix lost promiscuous mode after reconnecting cableStefan Wahren1-7/+7
If the Freescale fec is in promiscuous mode and network cable is reconnected then the promiscuous mode get lost. The problem is caused by a too soon call of set_multicast_list to re-enable promisc mode. The FEC_R_CNTRL register changes are overwritten by fec_restart. This patch fixes this by moving the call behind the init of FEC_R_CNTRL register in fec_restart. Successful tested on a i.MX28 board. Signed-off-by: Stefan Wahren <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-03-13bonding: set correct vlan id for alb xmit pathdingtianhong1-1/+1
The commit d3ab3ffd1d728d7ee77340e7e7e2c7cfe6a4013e (bonding: use rlb_client_info->vlan_id instead of ->tag) remove the rlb_client_info->tag, but occur some issues, The vlan_get_tag() will return 0 for success and -EINVAL for error, so the client_info->vlan_id always be set to 0 if the vlan_get_tag return 0 for success, so the client_info would never get a correct vlan id. We should only set the vlan id to 0 when the vlan_get_tag return error. Fixes: d3ab3ffd1d7 (bonding: use rlb_client_info->vlan_id instead of ->tag) CC: Ding Tianhong <[email protected]> CC: Jay Vosburgh <[email protected]> CC: Andy Gospodarek <[email protected]> Signed-off-by: Ding Tianhong <[email protected]> Acked-by: Veaceslav Falico <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-03-13at86rf230: fix lockdep splatsAlexander Aring1-5/+6
This patch fix a lockdep in the at86rf230 driver, otherwise we get: [ 30.206517] ================================= [ 30.211078] [ INFO: inconsistent lock state ] [ 30.215647] 3.14.0-20140108-1-00994-g32e9426 #163 Not tainted [ 30.221660] --------------------------------- [ 30.226222] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. [ 30.232514] systemd-udevd/157 [HC1[1]:SC0[0]:HE0:SE1] takes: [ 30.238439] (&(&lp->lock)->rlock){?.+...}, at: [<c03600f8>] at86rf230_isr+0x18/0x44 [ 30.246621] {HARDIRQ-ON-W} state was registered at: [ 30.251728] [<c0061ce4>] __lock_acquire+0x7a4/0x18d8 [ 30.257135] [<c0063500>] lock_acquire+0x68/0x7c [ 30.262071] [<c0588820>] _raw_spin_lock+0x28/0x38 [ 30.267203] [<c0361240>] at86rf230_xmit+0x1c/0x144 [ 30.272412] [<c057ba6c>] mac802154_xmit_worker+0x88/0x148 [ 30.278271] [<c0047844>] process_one_work+0x274/0x404 [ 30.283761] [<c00484c0>] worker_thread+0x228/0x374 [ 30.288971] [<c004cfb8>] kthread+0xd0/0xe4 [ 30.293455] [<c000dac8>] ret_from_fork+0x14/0x2c [ 30.298493] irq event stamp: 8948 [ 30.301963] hardirqs last enabled at (8947): [<c00cb290>] __kmalloc+0xb4/0x110 [ 30.309636] hardirqs last disabled at (8948): [<c00115d4>] __irq_svc+0x34/0x5c [ 30.317215] softirqs last enabled at (8452): [<c0037324>] __do_softirq+0x1dc/0x264 [ 30.325243] softirqs last disabled at (8439): [<c0037638>] irq_exit+0x80/0xf4 We use the lp->lock inside the isr of at86rf230, that's why we need the irqsave spinlock calls. Signed-off-by: Alexander Aring <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-03-13Revert "rt2x00: rt2800lib: Update BBP register initialization for RT53xx"Stanislaw Gruszka1-3/+3
This reverts commit eac40d9631a7db43570df859fa8a9922e9623607. It cause random connection drops on RT5390 PCI adapters. On Mediatek there is different driver version available for RT53xx chip based on bus type (2.5.0.3 for PCI and 2.6.1.3 for USB). Hence possibly we should set registers differently based on bus type. But is also possible that new driver (i.e. 2.6.1.3) was not verified on RT53xx USB. Until we figure out how to initialize registers properly for RT53xx just revert commit eac40d9631a7db43570df859fa8a9922e9623607 since it cause regression. Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-03-13ath9k: Fix sequence number assignment for non-data framesHelmut Schaa1-2/+2
Since commit 558ff225de80ac95b132d3a115ddadcd64498b4f (ath9k: fix ps-poll responses under a-mpdu sessions) non-data frames would have gotten a sequence number from a TIDs sequence counter instead of using the global sequence counter. This can lead to instable connections. To fix this only select the correct TID if we are processing a data frame. Furthermore, prevent non-data frames to get a sequence number from a TID sequence counter by adding a check to ath_tx_setup_buffer. Cc: Felix Fietkau <[email protected]> Signed-off-by: Helmut Schaa <[email protected]> Acked-by: Felix Fietkau <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-03-13ath9k_hw: fix unreachable code in baseband hang detection codeFelix Fietkau1-2/+1
The commit "ath9k: reduce baseband hang detection false positive rate" added a delay in the loop checking the baseband state, however it was unreachable due to previous 'continue' statements. Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Felix Fietkau <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-03-13brcmfmac: fix skb leak in brcmf_sdio_txpkt_prep_sg error path.Dave Jones1-1/+3
Commit 1eb4301867 (brcmfmac: fix txglomming scatter-gather packet transfers) added an allocation of an skb via brcmu_pkt_buf_get_skb() but forgot to free it on one of the error paths. Acked-by: Arend van Spriel <[email protected]> Signed-off-by: Dave Jones<[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-03-13net/mlx4_en: Deregister multicast vxlan steering rules when going downOr Gerlitz1-0/+2
When mlx4_en_stop_port() is called, we need to deregister also the tunnel steering rules that relate to multicast. Signed-off-by: Or Gerlitz <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-03-13vmxnet3: fix building without CONFIG_PCI_MSIArnd Bergmann1-2/+5
Since commit d25f06ea466e "vmxnet3: fix netpoll race condition", the vmxnet3 driver fails to build when CONFIG_PCI_MSI is disabled, because it unconditionally references the vmxnet3_msix_rx() function. To fix this, use the same #ifdef in the caller that exists around the function definition. Signed-off-by: Arnd Bergmann <[email protected]> Cc: Neil Horman <[email protected]> Cc: Shreyas Bhatewara <[email protected]> Cc: "VMware, Inc." <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: [email protected] Acked-by: Neil Horman <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-03-13MAINTAINERS: add networking selftests to NETWORKINGDaniel Borkmann1-0/+1
Add it to NETWORKING [GENERAL] to make sure patches for selftests go to the netdev list as well. Signed-off-by: Daniel Borkmann <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-03-13arch: Remove stub cputime.h headersFrederic Weisbecker16-33/+8
Many architectures have a stub cputime.h that only include the default cputime.h Lets remove the useless headers, we only need to mention that we want the default headers on the Kbuild files. Cc: Archs <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Marcelo Tosatti <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Acked-by: Rik van Riel <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]>
2014-03-13sched: Remove needless round trip nsecs <-> tick conversion of steal timeFrederic Weisbecker2-16/+0
When update_rq_clock_task() accounts the pending steal time for a task, it converts the steal delta from nsecs to tick then from tick to nsecs. There is no apparent good reason for doing that though because both the task clock and the prev steal delta are u64 and store values in nsecs. So lets remove the needless conversion. Cc: Ingo Molnar <[email protected]> Cc: Marcelo Tosatti <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Acked-by: Rik van Riel <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]>
2014-03-13cputime: Fix jiffies based cputime assumption on steal accountingFrederic Weisbecker1-5/+11
The steal guest time accounting code assumes that cputime_t is based on jiffies. So when CONFIG_NO_HZ_FULL=y, which implies that cputime_t is based on nsecs, steal_account_process_tick() passes the delta in jiffies to account_steal_time() which then accounts it as if it's a value in nsecs. As a result, accounting 1 second of steal time (with HZ=100 that would be 100 jiffies) is spuriously accounted as 100 nsecs. As such /proc/stat may report 0 values of steal time even when two guests have run concurrently for a few seconds on the same host and same CPU. In order to fix this, lets convert the nsecs based steal delta to cputime instead of jiffies by using the right conversion API. Given that the steal time is stored in cputime_t and this type can have a smaller granularity than nsecs, we only account the rounded converted value and leave the remaining nsecs for the next deltas. Reported-by: Huiqingding <[email protected]> Reported-by: Marcelo Tosatti <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Marcelo Tosatti <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Acked-by: Rik van Riel <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]>
2014-03-13cputime: Bring cputime -> nsecs conversionFrederic Weisbecker3-1/+10
We already have nsecs_to_cputime(). Now we need to be able to convert the other way around in order to fix a bug on steal time accounting. Cc: Ingo Molnar <[email protected]> Cc: Marcelo Tosatti <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Acked-by: Rik van Riel <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]>
2014-03-13cputime: Default implementation of nsecs -> cputime conversionFrederic Weisbecker7-6/+17
The architectures that override cputime_t (s390, ppc) don't provide any version of nsecs_to_cputime(). Indeed this cputime_t implementation by backend only happens when CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y under which the core code doesn't make any use of nsecs_to_cputime(). At least for now. We are going to make a broader use of it so lets provide a default version with a per usecs granularity. It should be good enough for most usecases. Cc: Ingo Molnar <[email protected]> Cc: Marcelo Tosatti <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Acked-by: Rik van Riel <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]>
2014-03-13cputime: Fix nsecs_to_cputime() return type castFrederic Weisbecker1-1/+2
Even though nsec based cputime_t maps to u64, nsecs_to_cputime() must return a cputime_t value. We want to enforce this kind of cast in order to track down buggy manipulations of cputime_t such as direct access of its values under wrong assumptions on its backend type (nsecs, jiffies, etc...) by core code. Cc: Ingo Molnar <[email protected]> Cc: Marcelo Tosatti <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Acked-by: Rik van Riel <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]>
2014-03-13arm64: smp: make local symbol staticJingoo Han1-1/+1
Make smp_spin_table_cpu_postboot() static, because this function is used only in this file. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2014-03-13arm64: debug: make local symbols staticJingoo Han1-2/+2
Make local symbols static, because these are used only in this file. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2014-03-13ARM64: perf: support dwarf unwinding in compat modeJean Pihet2-2/+2
Add support for unwinding using the dwarf information in compat mode. Using the correct user stack pointer allows perf to record the frames correctly in the native and compat modes. Note that although the dwarf frame unwinding works ok using libunwind in native mode (on ARMv7 & ARMv8), some changes are required to the libunwind code for the compat mode. Those changes are posted separately on the libunwind mailing list. Tested on ARMv8 platform with v8 and compat v7 binaries, the latter are statically built. Signed-off-by: Jean Pihet <[email protected]> Acked-by: Will Deacon <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2014-03-13ARM64: perf: add support for frame pointer unwinding in compat modeJean Pihet1-8/+67
When profiling a 32-bit application, user space callchain unwinding using the frame pointer is performed in compat mode. The code is taken over from the AARCH32 code and adapted to work on AARCH64. Signed-off-by: Jean Pihet <[email protected]> Acked-by: Will Deacon <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2014-03-13ARM64: perf: add support for perf registers APIJean Pihet6-1/+90
This patch implements the functions required for the perf registers API, allowing the perf tool to interface kernel register dumps with libunwind in order to provide userspace backtracing. Compat mode is also supported. Only the general purpose user space registers are exported, i.e.: PERF_REG_ARM_X0, ... PERF_REG_ARM_X28, PERF_REG_ARM_FP, PERF_REG_ARM_LR, PERF_REG_ARM_SP, PERF_REG_ARM_PC and not the PERF_REG_ARM_V* registers. Signed-off-by: Jean Pihet <[email protected]> Acked-by: Will Deacon <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2014-03-13arm64: Add boot time configuration of Intermediate Physical Address sizeRadha Mohan Chintakuntla4-13/+21
ARMv8 supports a range of physical address bit sizes. The PARange bits from ID_AA64MMFR0_EL1 register are read during boot-time and the intermediate physical address size bits are written in the translation control registers (TCR_EL1 and VTCR_EL2). There is no change in the VA bits and levels of translation. Signed-off-by: Radha Mohan Chintakuntla <[email protected]> Reviewed-by: Will Deacon <[email protected]> Acked-by: Marc Zyngier <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2014-03-13arm64: Do not synchronise I and D caches for special ptesCatalin Marinas1-1/+1
Special pte mappings are not intended to be executable and do not even have an associated struct page. This patch ensures that we do not call __sync_icache_dcache() on such ptes. Signed-off-by: Catalin Marinas <[email protected]> Reported-by: Steve Capper <[email protected]> Tested-by: Laura Abbott <[email protected]> Tested-by: Bharat Bhushan <[email protected]> Cc: <[email protected]>
2014-03-13arm64: Make DMA coherent and strongly ordered mappings not executableCatalin Marinas1-3/+3
pgprot_{dmacoherent,writecombine,noncached} don't need to generate executable mappings with side-effects like __sync_icache_dcache() being called when the mapping is in user space. Signed-off-by: Catalin Marinas <[email protected]> Reported-by: Bharat Bhushan <[email protected]> Tested-by: Laura Abbott <[email protected]> Tested-by: Bharat Bhushan <[email protected]> Cc: <[email protected]>
2014-03-13KVM: PPC: Book3S HV: Fix register usage when loading/saving VRSAVEPaul Mackerras1-2/+2
Commit 595e4f7e697e ("KVM: PPC: Book3S HV: Use load/store_fp_state functions in HV guest entry/exit") changed the register usage in kvmppc_save_fp() and kvmppc_load_fp() but omitted changing the instructions that load and save VRSAVE. The result is that the VRSAVE value was loaded from a constant address, and saved to a location past the end of the vcpu struct, causing host kernel memory corruption and various kinds of host kernel crashes. This fixes the problem by using register r31, which contains the vcpu pointer, instead of r3 and r4. Signed-off-by: Paul Mackerras <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2014-03-13KVM: PPC: Book3S HV: Remove bogus duplicate codePaul Mackerras1-67/+0
Commit 7b490411c37f ("KVM: PPC: Book3S HV: Add new state for transactional memory") incorrectly added some duplicate code to the guest exit path because I didn't manage to clean up after a rebase correctly. This removes the extraneous material. The presence of this extraneous code causes host crashes whenever a guest is run. Signed-off-by: Paul Mackerras <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2014-03-13Merge tag 'ttm-fixes-3.14-2014-03-12' of ↵Dave Airlie2-8/+12
git://people.freedesktop.org/~thomash/linux into drm-fixes Second pull request of 2014-03-12. The first one was requested to be canceled. Rob's fix for oops on invalidate_caches() and a fix for a performance regression. * tag 'ttm-fixes-3.14-2014-03-12' of git://people.freedesktop.org/~thomash/linux: drm/ttm: don't oops if no invalidate_caches() drm/ttm: Work around performance regression with VM_PFNMAP
2014-03-13Merge branch 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie3-9/+20
into drm-fixes A few more radeon fixes. * 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux: drm/radeon/cik: properly set compute ring status on disable drm/radeon/cik: stop the sdma engines in the enable() function drm/radeon/cik: properly set sdma ring status on disable drm/radeon: fix runpm disabling on non-PX harder
2014-03-13Merge tag 'vmwgfx-fixes-3.14-2014-03-13' of ↵Dave Airlie1-0/+18
git://people.freedesktop.org/~thomash/linux into drm-fixes Pull request of 2014-03-13 one minor fix for new hw * tag 'vmwgfx-fixes-3.14-2014-03-13' of git://people.freedesktop.org/~thomash/linux: drm/vmwgfx: Fix a surface reference corner-case in legacy emulation mode
2014-03-13drm/vmwgfx: Fix a surface reference corner-case in legacy emulation modeThomas Hellstrom1-0/+18
If running on a gb-object capable device with a non-gb capable surface exporter (X server) and a gb capable surface referencing client (GL driver), the referencing client expects to find a shareable backing buffer attached to the surface at reference time. This may not be the case if the surface has not yet been validated. This would cause the surface reference IOCTL to return an error. Signed-off-by: Thomas Hellstrom <[email protected]> Reviewed-by: Jakob Bornecrantz <[email protected]>
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