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2015-04-11ixgbe: Add GET_RSS_KEY command to VF-PF channel commands setVlad Zolotarov
For 82599 and x540 VFs and PF share the same RSS Key. Therefore we will return the same RSS key for all VFs. Support for other devices will be added later. Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-04-11Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull dmaengine fix from Vinod Koul: "I have one more fix to fix the boot warning on cppi driver due to missing capabilities" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: cppi41: add missing bitfields
2015-04-11Merge tag 'for-linus-4.0-1' of git://git.code.sf.net/p/openipmi/linux-ipmiLinus Torvalds
Pull late ipmi fixes from Corey Minyard: "Some annoying issues in the IPMI driver that would be good to have fixed before 4.0 is released. These got reported or discovered late, but they will avoid some situations that would cause lots of log spam and in one case a deadlock" * tag 'for-linus-4.0-1' of git://git.code.sf.net/p/openipmi/linux-ipmi: ipmi_ssif: Use interruptible completion for waiting in the thread ipmi/powernv: Fix minor locking bug ipmi: Handle BMCs that don't allow clearing the rcv irq bit
2015-04-11ALSA: emu10k1: add toggles for E-mu 1010 optical portsMichael Gernoth
The optical ports on the E-mu 1010 (and dock) can be configured for ADAT- or S/PDIF-mode, which is currently hardcoded to ADAT. Add two mixer elements to expose this setting. Tested on an E-mu 1010 PCIe with connected Micro Dock. Signed-off-by: Michael Gernoth <michael@gernoth.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-11ixgbevf: Add a RETA query codeVlad Zolotarov
We will currently support only 82599 and x540 devices. Support for other devices will be added later. - Added a new API version support. - Added the query implementation in the ixgbevf. Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-04-11dmaengine: cppi41: add missing bitfieldsFelipe Balbi
Add missing directions, residue_granularity, srd_addr_widths and dst_addr_widths bitfields. Without those we will see a kernel WARN() when loading musb on am335x devices. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-04-11ALSA: ctl: fill identical information to return value when adding userspace ↵Takashi Sakamoto
elements currently some members related identical information are not fiiled in returned parameter of SNDRV_CTL_IOCTL_ELEM_ADD. This is not better for userspace application. This commit copies information to returned value. When failing to copy into userspace, the added elements are going to be removed. Then, no applications can lock these elements between adding and removing because these are already locked. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-11ALSA: ctl: fix a bug to return no identical information in info operation ↵Takashi Sakamoto
for userspace controls In operations of SNDRV_CTL_IOCTL_ELEM_INFO, identical information in returned value is cleared. This is not better to userspace application. This commit confirms to return full identical information to the operations. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-11ALSA: ctl: confirm to return all identical information in 'activate' eventTakashi Sakamoto
When event originator doesn't set numerical ID in identical information, the event data includes no numerical ID, thus userspace applications cannot identify the control just by unique ID in event data. This commit fix this bug so as the event data includes all of identical information. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-11ALSA: emu10k1: handle dock disconnectsMichael Gernoth
When the dock on an E-mu 1010 card is disconnected, all outputs get muted by the hardware. Add logic to detect a disconnect and unmute. Signed-off-by: Michael Gernoth <michael@gernoth.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-11ALSA: hda - Add dock support for ThinkPad X250 (17aa:2226)Yves-Alexis Perez
This model uses the same dock port as the previous generation. Signed-off-by: Yves-Alexis Perez <corsac@debian.org> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-11Documentation/memcg: update memcg/kmem statusVladimir Davydov
Memcg/kmem reclaim support has been finally merged. Reflect this in the documentation. Acked-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Vladimir Davydov <vdavydov@parallels.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-11Documentation: blackfin: Makefile: Typo building issueChen Gang
Miss a ')' for ifneq in Makefile, the related building error: Documentation/blackfin/Makefile:2: *** invalid syntax in conditional. Stop. make[1]: *** [Documentation/blackfin] Error 2 Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-11Documentation/vm/pagemap.txt: correct location of page-types toolRandy Wright
The page-types tool was relocated to tools/vm in the 3.4 kernel timeframe. Signed-off-by: Randy Wright <rwright@hp.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-11perf/x86/64: Report regs_user->ax too in get_regs_user()Denys Vlasenko
I don't see why we report e.g. orix_ax, which is not always meaningful, but don't report ax, which is meaningful. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1428671219-29341-4-git-send-email-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-11perf/x86/64: Simplify regs_user->abi setting code in get_regs_user()Denys Vlasenko
user_64bit_mode(regs) basically checks regs->cs to point to a 64-bit segment. This check used to be unreliable here because regs->cs was not always correct in syscalls. Now regs->cs is always correct: in syscalls, in interrupts, in exceptions. No need to emply heuristics here. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1428671219-29341-3-git-send-email-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-11perf/x86/64: Do report user_regs->cx while we are in syscall, in get_regs_user()Denys Vlasenko
Yes, it is true that cx contains return address. It's not clear why we trash it. Stop doing that. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1428671219-29341-2-git-send-email-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-11perf/x86/64: Do not guess user_regs->cs, ss, sp in get_regs_user()Denys Vlasenko
After recent changes to syscall entry points, user_regs->{cs,ss,sp} are always correct. (They used to be undefined while in syscalls). We can report them reliably, without guessing. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1428671219-29341-1-git-send-email-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-11powerpc: Fix missing L2 cache size in /sys/devices/system/cpuDave Olson
This problem appears to have been introduced in 2.6.29 by commit 93197a36a9c1 "Rewrite sysfs processor cache info code". This caused lscpu to error out on at least e500v2 devices, eg: error: cannot open /sys/devices/system/cpu/cpu0/cache/index2/size: No such file or directory Some embedded powerpc systems use cache-size in DTS for the unified L2 cache size, not d-cache-size, so we need to allow for both DTS names. Added a new CACHE_TYPE_UNIFIED_D cache_type_info structure to handle this. Fixes: 93197a36a9c1 ("powerpc: Rewrite sysfs processor cache info code") Signed-off-by: Dave Olson <olson@cumulusnetworks.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc: Add ppc64 hard lockup detector supportAnton Blanchard
The hard lockup detector uses a PMU event as a periodic NMI to detect if we are stuck (where stuck means no timer interrupts have occurred). Ben's rework of the ppc64 soft disable code has made ppc64 PMU exceptions a partial NMI. They can get disabled if an external interrupt comes in, but otherwise PMU interrupts will fire in interrupt disabled regions. We disable the hard lockup detector by default for a few reasons: - It breaks userspace event based branches on POWER8. - It is likely to produce false positives on KVM guests. - Since PMCs can only count to 2^31, counting cycles means we might take multiple PMU exceptions per second per hardware thread even if our hard lockup timeout is 10 seconds. It can be enabled via a boot option, or via procfs. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11oprofile: Disable oprofile NMI timer on ppc64Anton Blanchard
We want to enable the hard lockup detector on ppc64, but right now that enables the oprofile NMI timer too. We'd prefer not to enable the oprofile NMI timer, it adds another element to our PMU testing and it requires us to increase our exported symbols (eg cpu_khz). Modify the config entry for OPROFILE_NMI_TIMER to disable it on PPC64. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Robert Richter <rric@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Add missing put_cpu_var()Sukadev Bhattiprolu
Add missing put_cpu_var() for 24x7 requests. This went missing in commit f34b6c7 (3.18-rc3). Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Break up single_24x7_requestSukadev Bhattiprolu
Break up the function single_24x7_request() into smaller functions. This would later enable us to "prepare" a multi-event request buffer and then submit a single hcall for several events. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Define update_event_count()Sukadev Bhattiprolu
Move the code to update an event count into a new function, update_event_count(). Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Whitespace cleanupSukadev Bhattiprolu
Fix minor whitespace damages. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Define add_event_to_24x7_request()Sukadev Bhattiprolu
Move code that maps a perf_event to a 24x7 request buffer into a separate function, add_event_to_24x7_request(). Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Rename hv_24x7_event_updateSukadev Bhattiprolu
For consistency with the pmu operation ->read() and with other pmus, rename hv_24x7_event_update() to hv_24x7_event_read(). Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Move debug prints to separate functionSukadev Bhattiprolu
To simplify/cleanup code, move the rather long printk() to a separate function. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Drop event_24x7_request()Sukadev Bhattiprolu
The function event_24x7_request() is essentially a wrapper to the function single_24x7_request() and can be dropped to simplify code. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Use pr_devel() to log messageSukadev Bhattiprolu
Use pr_devel_ratelimited() to log error message when the 24x7 HCALL fails. Since users specify events by their sysfs name, the HCALL should succeed. Any errors reported by the HCALL would be of interest to the developer, rather than the user/administrator. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Remove unnecessary parameterSukadev Bhattiprolu
Remove the 'success_expected' parameter and log the message unconditionally. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/perf/hv-24x7: Modify definition of request and result buffersSukadev Bhattiprolu
The parameters to the 24x7 HCALL have variable number of elements in them. Set the minimum number of such elements to 1 rather than 0 and eliminate the temporary structures. This would enable us to submit multiple counter requests and process multiple results from a single HCALL (in a follow on patch). Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/powernv: Add interfaces for flash device accessCyril Bur
This change adds the OPAL interface definitions to allow Linux to read, write and erase from system flash devices. We register platform devices for the flash devices exported by firmware. We clash with the existing opal_flash_init function, which is really for the FSP flash update functionality, so we rename that initcall to opal_flash_update_init(). A future change will add an mtd driver that uses this interface. Changes from Joel Stanley and Jeremy Kerr. Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/tm: Correct minor documentation typosSam bobroff
Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11selftests/powerpc: Add transactional syscall testSam bobroff
Check that a syscall made during an active transaction will fail with the correct failure code and that one made during a suspended transaction will succeed. Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11selftests/powerpc: Move get_auxv_entry() to harness.cSam bobroff
Move get_auxv_entry() from pmu/lib.c up to harness.c in order to make it available to other tests. Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/tm: Abort syscalls in active transactionsSam bobroff
This patch changes the syscall handler to doom (tabort) active transactions when a syscall is made and return immediately without performing the syscall. Currently, the system call instruction automatically suspends an active transaction which causes side effects to persist when an active transaction fails. This does change the kernel's behaviour, but in a way that was documented as unsupported. It doesn't reduce functionality because syscalls will still be performed after tsuspend. It also provides a consistent interface and makes the behaviour of user code substantially the same across powerpc and platforms that do not support suspended transactions (e.g. x86 and s390). Performance measurements using http://ozlabs.org/~anton/junkcode/null_syscall.c indicate the cost of a system call increases by about 0.5%. Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com> Acked-By: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc: dart_iommu: Remove check for controller_ops == NULL caseDaniel Axtens
Now that we have ported the calls to iommu_init_early_dart to always supply a pci_controller_ops struct, we can safely drop the check. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc: Remove shims for pci_controller_ops operationsDaniel Axtens
Remove shims, patch callsites to use pci_controller_ops versions instead. Also move back the probe mode defines, as explained in the patch for pci_probe_mode. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/cell: Move controller ops from ppc_md to controller_opsDaniel Axtens
This moves the Cell platform to use the pci_controller_ops structure rather than ppc_md for PCI controller operations. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc: fsl_pci, swiotlb: Move controller ops from ppc_md to controller_opsDaniel Axtens
Move the installation of DMA operations out of swiotlb's subsys initcall, and into the generic PCI controller operations struct. These ops are installed conditionally, based on the ppc_swiotlb_enable global. The global can be set in two places: - swiotlb_detect_4g, which is always called at the arch initcall level - setup_pci_atmu, which is called as part of the fsl_add_bridge and fsl_pci_syscore_do_resume. fsl_pci_syscore_do_resume is called late enough that any changes as a result of that call will have no effect. As such, if we test the global and set the operations as part of fsl_add_bridge, after the call to setup_pci_atmu, we can be confident that it will cover all the PCI implementations affected by the changes to dma-swiotlb.c. Signed-off-by: Daniel Axtens <dja@axtens.net> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/maple: Move controller ops from ppc_md to controller_opsDaniel Axtens
This moves the Maple platform to use the pci_controller_ops structure rather than ppc_md for PCI controller operations. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/pasemi: Move controller ops from ppc_md to controller_opsDaniel Axtens
This moves the PaSemi platform to use the pci_controller_ops structure rather than ppc_md for PCI controller operations. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/powernv: Move controller ops from ppc_md to controller_opsDaniel Axtens
This moves the PowerNV platform to use the pci_controller_ops structure rather than ppc_md for PCI controller operations. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/pseries: Move controller ops from ppc_md to controller_opsDaniel Axtens
This moves the pSeries platform to use the pci_controller_ops structure, rather than ppc_md for PCI controller operations. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc/powermac: Move controller ops from ppc_md to controller_opsDaniel Axtens
This moves the Power Mac platform to use the pci_controller_ops structure rather than ppc_md for PCI controller operations. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc: dart_iommu: optionally populate controller_ops on initDaniel Axtens
If a pci_controller_ops struct is provided to iommu_init_early_dart, populate that with the DMA setup ops, rather than ppc_md. If NULL is provided, populate ppc_md as before. This also patches the call sites for Maple and Power Mac to pass NULL, so existing behaviour is preserved. The benefit of making this optional is that it means we don't have to change dart, Maple and Power Mac over to the controller_ops system in one fell swoop. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc: Create pci_controller_ops.reset_secondary_bus and shimDaniel Axtens
Add pci_controller_ops.reset_secondary_bus, shadowing ppc_md.pcibios_reset_secondary_bus. Add a shim, and changes the callsites to use the shim. Use pcibios_reset_secondary_bus_shim, as both pcibios_reset_secondary_bus and pci_reset_secondary_bus are already taken. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc: Create pci_controller_ops.window_alignment and shimDaniel Axtens
Add pci_controller_ops.window_alignment, shadowing ppc_md.pcibios_window_alignment. Add a shim, and changes the callsites to use the shim. Here, we use pci_window_alignment, as pcibios_window_alignment is already taken. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-11powerpc: Create pci_controller_ops.enable_device_hook and shimDaniel Axtens
Add pci_controller_ops.enable_device_hook, shadowing ppc_md.pcibios_enable_device_hook. Add a shim, and changes the callsites to use the shim. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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