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2015-06-23HSI: cmt_speech: fix timestamp interfaceSebastian Reichel1-5/+11
The user interface for timestamps in the new cmt_speech driver is broken in multiple ways: - The layout is incompatible between 32-bit and 64-bit user space, because of the size differences in 'struct timespec'. This means that the driver can not work when used with 32-bit user space on a 64-bit kernel. - As there are plans to change 32-bit user space to use a 64-bit time_t type in the future, it will also be incompatible with new 32-bit user space. - It is using ktime_get_ts under it's deprecated alias (do_posix_clock_monotonic_gettime). To keep support for the user space tools written for this driver (which have lived many years out-of-tree), the interface has been hardened to unsigned 32-bit values. Reported-by: Arnd Bergmann <[email protected]> Signed-off-by: Sebastian Reichel <[email protected]>
2015-06-22Merge branch 'perf-core-for-linus' of ↵Linus Torvalds1-0/+18
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "Kernel side changes mostly consist of work on x86 PMU drivers: - x86 Intel PT (hardware CPU tracer) improvements (Alexander Shishkin) - x86 Intel CQM (cache quality monitoring) improvements (Thomas Gleixner) - x86 Intel PEBSv3 support (Peter Zijlstra) - x86 Intel PEBS interrupt batching support for lower overhead sampling (Zheng Yan, Kan Liang) - x86 PMU scheduler fixes and improvements (Peter Zijlstra) There's too many tooling improvements to list them all - here are a few select highlights: 'perf bench': - Introduce new 'perf bench futex' benchmark: 'wake-parallel', to measure parallel waker threads generating contention for kernel locks (hb->lock). (Davidlohr Bueso) 'perf top', 'perf report': - Allow disabling/enabling events dynamicaly in 'perf top': a 'perf top' session can instantly become a 'perf report' one, i.e. going from dynamic analysis to a static one, returning to a dynamic one is possible, to toogle the modes, just press 'f' to 'freeze/unfreeze' the sampling. (Arnaldo Carvalho de Melo) - Make Ctrl-C stop processing on TUI, allowing interrupting the load of big perf.data files (Namhyung Kim) 'perf probe': (Masami Hiramatsu) - Support glob wildcards for function name - Support $params special probe argument: Collect all function arguments - Make --line checks validate C-style function name. - Add --no-inlines option to avoid searching inline functions - Greatly speed up 'perf probe --list' by caching debuginfo. - Improve --filter support for 'perf probe', allowing using its arguments on other commands, as --add, --del, etc. 'perf sched': - Add option in 'perf sched' to merge like comms to lat output (Josef Bacik) Plus tons of infrastructure work - in particular preparation for upcoming threaded perf report support, but also lots of other work - and fixes and other improvements. See (much) more details in the shortlog and in the git log" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (305 commits) perf tools: Configurable per thread proc map processing time out perf tools: Add time out to force stop proc map processing perf report: Fix sort__sym_cmp to also compare end of symbol perf hists browser: React to unassigned hotkey pressing perf top: Tell the user how to unfreeze events after pressing 'f' perf hists browser: Honour the help line provided by builtin-{top,report}.c perf hists browser: Do not exit when 'f' is pressed in 'report' mode perf top: Replace CTRL+z with 'f' as hotkey for enable/disable events perf annotate: Rename source_line_percent to source_line_samples perf annotate: Display total number of samples with --show-total-period perf tools: Ensure thread-stack is flushed perf top: Allow disabling/enabling events dynamicly perf evlist: Add toggle_enable() method perf trace: Fix race condition at the end of started workloads perf probe: Speed up perf probe --list by caching debuginfo perf probe: Show usage even if the last event is skipped perf tools: Move libtraceevent dynamic list to separated LDFLAGS variable perf tools: Fix a problem when opening old perf.data with different byte order perf tools: Ignore .config-detected in .gitignore perf probe: Fix to return error if no probe is added ...
2015-06-22Merge tag 'asoc-v4.2' into asoc-nextMark Brown2-0/+419
ASoC: Updates for v4.2 The big thing this release has been Liam's addition of topology support to the core. We've also seen quite a bit of driver work and the continuation of Lars' refactoring for component support. - Support for loading ASoC topology maps from firmware, intended to be used to allow self-describing DSP firmware images to be built which can map controls added by the DSP to userspace without the kernel needing to know about individual DSP firmwares. - Lots of refactoring to avoid direct access to snd_soc_codec where it's not needed supporting future refactoring. - Big refactoring and cleanup serieses for the Wolfson ADSP and TI TAS2552 drivers. - Support for TI TAS571x power amplifiers. - Support for Qualcomm APQ8016 and ZTE ZX296702 SoCs. - Support for x86 systems with RT5650 and Qualcomm Storm. # gpg: Signature made Mon 08 Jun 2015 18:48:37 BST using RSA key ID 5D5487D0 # gpg: Oops: keyid_from_fingerprint: no pubkey # gpg: Good signature from "Mark Brown <[email protected]>" # gpg: aka "Mark Brown <[email protected]>" # gpg: aka "Mark Brown <[email protected]>" # gpg: aka "Mark Brown <[email protected]>" # gpg: aka "Mark Brown <[email protected]>" # gpg: aka "Mark Brown <[email protected]>"
2015-06-22crypto: user - Add CRYPTO_MSG_DELRNGHerbert Xu1-0/+1
This patch adds a new crypto_user command that allows the admin to delete the crypto system RNG. Note that this can only be done if the RNG is currently not in use. The next time it is used a new system RNG will be allocated. Signed-off-by: Herbert Xu <[email protected]>
2015-06-22crypto: user - Move cryptouser.h to uapiHerbert Xu1-0/+110
The header file cryptouser.h only contains information that is exported to user-space. Signed-off-by: Herbert Xu <[email protected]>
2015-06-21netlink: add API to retrieve all group membershipsDavid Herrmann1-8/+9
This patch adds getsockopt(SOL_NETLINK, NETLINK_LIST_MEMBERSHIPS) to retrieve all groups a socket is a member of. Currently, we have to use getsockname() and look at the nl.nl_groups bitmask. However, this mask is limited to 32 groups. Hence, similar to NETLINK_ADD_MEMBERSHIP and NETLINK_DROP_MEMBERSHIP, this adds a separate sockopt to manager higher groups IDs than 32. This new NETLINK_LIST_MEMBERSHIPS option takes a pointer to __u32 and the size of the array. The array is filled with the full membership-set of the socket, and the required array size is returned in optlen. Hence, user-space can retry with a properly sized array in case it was too small. Signed-off-by: David Herrmann <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-06-19perf tools: Add time out to force stop proc map processingKan Liang1-0/+4
System wide sampling like 'perf top' or 'perf record -a' read all threads /proc/xxx/maps before sampling. If there are any threads which generating a keeping growing huge maps, perf will do infinite loop during synthesizing. Nothing will be sampled. This patch fixes this issue by adding per-thread timeout to force stop this kind of endless proc map processing. PERF_RECORD_MISC_PROC_MAP_PARSE_TIME_OUT is introduced to indicate that the mmap record are truncated by time out. User will get warning notification when truncated mmap records are detected. Reported-by: Ying Huang <[email protected]> Signed-off-by: Kan Liang <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Ying Huang <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-06-19Merge tag 'kvm-arm-for-4.2' of ↵Paolo Bonzini1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/ARM changes for v4.2: - Proper guest time accounting - FP access fix for 32bit - The usual pile of GIC fixes - PSCI fixes - Random cleanups
2015-06-18netfilter: don't pull include/linux/netfilter.h from netns headersPablo Neira Ayuso1-1/+2
This pulls the full hook netfilter definitions from all those that include net_namespace.h. Instead let's just include the bare minimum required in the new linux/netfilter_defs.h file, and use it from the netfilter netns header files. I also needed to include in.h and in6.h from linux/netfilter.h otherwise we hit this compilation error: In file included from include/linux/netfilter_defs.h:4:0, from include/net/netns/netfilter.h:4, from include/net/net_namespace.h:22, from include/linux/netdevice.h:43, from net/netfilter/nfnetlink_queue_core.c:23: include/uapi/linux/netfilter.h:76:17: error: field ‘in’ has incomplete type struct in_addr in; And also explicit include linux/netfilter.h in several spots. Signed-off-by: Pablo Neira Ayuso <[email protected]> Signed-off-by: Eric W. Biederman <[email protected]>
2015-06-18drm/radeon: Add RADEON_INFO_VA_UNMAP_WORKING queryMichel Dänzer1-0/+1
This tells userspace that it's safe to use the RADEON_VA_UNMAP operation of the DRM_RADEON_GEM_VA ioctl. Cc: [email protected] (NOTE: Backporting this commit requires at least backports of commits 26d4d129b6042197b4cbc8341c0618f99231af2f, 48afbd70ac7b6aa62e8d452091023941d8085f8a and c29c0876ec05d51a93508a39b90b92c29ba6423d as well, otherwise using RADEON_VA_UNMAP runs into trouble) Signed-off-by: Michel Dänzer <[email protected]> Signed-off-by: Christian König <[email protected]>
2015-06-18[media] videodev2.h: fix copy-and-paste error in V4L2_MAP_XFER_FUNC_DEFAULTHans Verkuil1-1/+1
The colorspace argument was compared against a V4L2_XFER_FUNC define instead of against a V4L2_COLORSPACE define, returning the wrong answer. Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-18netfilter: xt_socket: add XT_SOCKET_RESTORESKMARK flagHarout Hedeshian1-0/+8
xt_socket is useful for matching sockets with IP_TRANSPARENT and taking some action on the matching packets. However, it lacks the ability to match only a small subset of transparent sockets. Suppose there are 2 applications, each with its own set of transparent sockets. The first application wants all matching packets dropped, while the second application wants them forwarded somewhere else. Add the ability to retore the skb->mark from the sk_mark. The mark is only restored if a matching socket is found and the transparent / nowildcard conditions are satisfied. Now the 2 hypothetical applications can differentiate their sockets based on a mark value set with SO_MARK. iptables -t mangle -I PREROUTING -m socket --transparent \ --restore-skmark -j action iptables -t mangle -A action -m mark --mark 10 -j action2 iptables -t mangle -A action -m mark --mark 11 -j action3 Signed-off-by: Harout Hedeshian <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2015-06-18netfilter: nfnetlink_queue: add security context informationRoman Kubiak1-1/+3
This patch adds an additional attribute when sending packet information via netlink in netfilter_queue module. It will send additional security context data, so that userspace applications can verify this context against their own security databases. Signed-off-by: Roman Kubiak <[email protected]> Acked-by: Florian Westphal <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2015-06-17kvm: remove one useless check extensionTiejun Chen1-1/+1
We already check KVM_CAP_IRQFD in generic once enable CONFIG_HAVE_KVM_IRQFD, kvm_vm_ioctl_check_extension_generic() | + switch (arg) { + ... + #ifdef CONFIG_HAVE_KVM_IRQFD + case KVM_CAP_IRQFD: + #endif + ... + return 1; + ... + } | + kvm_vm_ioctl_check_extension() So its not necessary to check this in arch again, and also fix one typo, s/emlation/emulation. Signed-off-by: Tiejun Chen <[email protected]> Acked-by: Paolo Bonzini <[email protected]> Signed-off-by: Christoffer Dall <[email protected]>
2015-06-15sock_diag: implement a get_info handler for inetCraig Gallek1-1/+2
This get_info handler will simply dispatch to the appropriate existing inet protocol handler. This patch also includes a new netlink attribute (INET_DIAG_PROTOCOL). This attribute is currently only used for multicast messages. Without this attribute, there is no way of knowing the IP protocol used by the socket information being broadcast. This attribute is not necessary in the 'dump' variant of this protocol (though it could easily be added) because dump requests are issued for specific family/protocol pairs. Tested: ss -E (note, the -E option has not yet been merged into the upstream version of ss). Signed-off-by: Craig Gallek <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-06-15sock_diag: define destruction multicast groupsCraig Gallek1-0/+10
These groups will contain socket-destruction events for AF_INET/AF_INET6, IPPROTO_TCP/IPPROTO_UDP. Near the end of socket destruction, a check for listeners is performed. In the presence of a listener, rather than completely cleanup the socket, a unit of work will be added to a private work queue which will first broadcast information about the socket and then finish the cleanup operation. Signed-off-by: Craig Gallek <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-06-15net/core: Add reading VF statistics through the PF netdeviceEran Ben Elisha1-0/+13
Add ndo_get_vf_stats where the PF retrieves and fills the VFs traffic statistics. We encode the VF stats in a nested manner to allow for future extensions. Signed-off-by: Eran Ben Elisha <[email protected]> Signed-off-by: Hadar Hen Zion <[email protected]> Signed-off-by: Or Gerlitz <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-06-15Merge tag 'nfc-next-4.2-1' of ↵David S. Miller2-0/+11
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next Samuel Ortiz says: ==================== NFC 4.2 pull request This is the NFC pull request for 4.2. - NCI drivers can now define their own handlers for processing proprietary NCI responses and notifications. - NFC vendors can use a dedicated netlink API to send their own proprietary commands, like e.g. all commands needed to implement vendor specific manufacturing tools. - A new generic NCI over UART driver against which any NCI chipset running on top of a serial interface can register. - The st21nfcb driver is renamed to st-nci as it can and will support most of ST Microelectronics NCI chipsets. - The st21nfcb driver can put its CLF in hibernate mode and save significant amount of power. - A few st21nfcb minor fixes. - The NXP NCI driver now supports ACPI enumeration. - The Marvell NCI driver now supports both USB and serial physical interfaces. - The Marvell NCI drivers also supports NCI frames being muxed over HCI. This is a setting that can be defined by a DT property. ==================== Signed-off-by: David S. Miller <[email protected]>
2015-06-15bonding: export slave's partner_oper_port_state via sysfs and netlinkNikolay Aleksandrov1-0/+1
Export the partner_oper_port_state of each port via sysfs and netlink. In 802.3ad mode it is valuable for the user to be able to check the partner_oper state, it is already exported via bond's proc entry. Signed-off-by: Nikolay Aleksandrov <[email protected]> Signed-off-by: Andy Gospodarek <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-06-15bonding: export slave's actor_oper_port_state via sysfs and netlinkNikolay Aleksandrov1-0/+1
Export the actor_oper_port_state of each port via sysfs and netlink. In 802.3ad mode it is valuable for the user to be able to check the actor_oper state, it is already exported via bond's proc entry. Signed-off-by: Nikolay Aleksandrov <[email protected]> Signed-off-by: Andy Gospodarek <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-06-15bpf: introduce current->pid, tgid, uid, gid, comm accessorsAlexei Starovoitov1-0/+19
eBPF programs attached to kprobes need to filter based on current->pid, uid and other fields, so introduce helper functions: u64 bpf_get_current_pid_tgid(void) Return: current->tgid << 32 | current->pid u64 bpf_get_current_uid_gid(void) Return: current_gid << 32 | current_uid bpf_get_current_comm(char *buf, int size_of_buf) stores current->comm into buf They can be used from the programs attached to TC as well to classify packets based on current task fields. Update tracex2 example to print histogram of write syscalls for each process instead of aggregated for all. Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-06-15netfilter: nf_tables: attach net_device to basechainPablo Neira Ayuso1-2/+2
The device is part of the hook configuration, so instead of a global configuration per table, set it to each of the basechain that we create. This patch reworks ebddf1a8d78a ("netfilter: nf_tables: allow to bind table to net_device"). Note that this adds a dev_name field in the nft_base_chain structure which is required the netdev notification subscription that follows up in a patch to handle gone net_devices. Suggested-by: Patrick McHardy <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2015-06-15drm/i915: Report to userspace if we have a (presumed) working GPU resetChris Wilson1-0/+1
In igt, we want to test handling of GPU hangs, both for recovery purposes and for reporting. However, we don't want to inject a genuine GPU hang onto a machine that cannot recover and so be permenantly wedged. Rather than embed heuristics into igt, have the kernel report exactly when it expects the GPU reset to work. This can also be usefully extended in future to indicate different levels of fine-grained resets. Signed-off-by: Chris Wilson <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Tim Gore <[email protected]> Cc: Tomas Elf <[email protected]> Signed-off-by: Daniel Vetter <[email protected]>
2015-06-14netfilter: ipset: Fix coding styles reported by checkpatch.plJozsef Kadlecsik1-3/+3
Signed-off-by: Jozsef Kadlecsik <[email protected]>
2015-06-12IB/core: Add timestamp_mask and hca_core_clock to query_deviceMatan Barak1-0/+2
In order to expose timestamp we need to expose two new attributes in query_device to be used for CQ completion time-stamping: timestamp_mask - how many bits are valid in the timestamp, where timestamp values could be 64bits the most. hca_core_clock - timestamp is given in HW cycles, the frequency in KHZ units of the HCA, necessary in order to convert cycles to seconds. This is added both to ib_query_device and its respective uverbs counterpart. Signed-off-by: Matan Barak <[email protected]> Signed-off-by: Or Gerlitz <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2015-06-12IB/core: Extend ib_uverbs_create_cqMatan Barak1-0/+17
ib_uverbs_ex_create_cq follows the extension verbs mechanism. New features (for example, CQ creation flags field which is added in a downstream patch) could used via user-space libraries without breaking the ABI. Signed-off-by: Matan Barak <[email protected]> Signed-off-by: Or Gerlitz <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2015-06-11Merge tag 'samsung-mach-1' of ↵Kevin Hilman3-0/+17
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc Samsung updates for v4.2 - add failure(exception) handling : of_iomap(), of_find_device_by_node() and kstrdup() - add common poweroff to use PS_HOLD based for all of exynos SoCs - add exnos_get/set_boot_addr() helper - constify platform_device_id and irq_domain_ops - get current parent clock for power domain on/off - use core_initcall to register power domain driver - make exynos_core_restart() less verbose - add support coupled CPUidle for exynos3250 - fix exynos_boot_secondary() return value on timeout - fix clk_enable() in s3c24xx adc - fix missing of_node_put() for power domains * tag 'samsung-mach-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (301 commits) ARM: EXYNOS: register power domain driver from core_initcall ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs ARM: SAMSUNG: Constify platform_device_id ARM: EXYNOS: Constify irq_domain_ops ARM: EXYNOS: add coupled cpuidle support for Exynos3250 ARM: EXYNOS: add exynos_get_boot_addr() helper ARM: EXYNOS: add exynos_set_boot_addr() helper ARM: EXYNOS: make exynos_core_restart() less verbose ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout ARM: EXYNOS: Get current parent clock for power domain on/off ARM: SAMSUNG: fix clk_enable() WARNing in S3C24XX ADC ARM: EXYNOS: Add missing of_node_put() when parsing power domains ARM: EXYNOS: Handle of_find_device_by_node() and kstrdup() failures ARM: EXYNOS: Handle of of_iomap() failure Linux 4.1-rc4 ....
2015-06-11NFC: nci: add generic uart supportVincent Cuissard1-0/+1
Some NFC controller supports UART as host interface. As with SPI, a lot of code can be shared between vendor drivers. This patch add the generic support of UART and provides some extension API for vendor specific needs. This code is strongly inspired by the Bluetooth HCI ldisc implementation. NCI UART vendor drivers will have to register themselves to this layer via nci_uart_register. Underlying tty will have to be configured from user land thanks to an ioctl. Signed-off-by: Vincent Cuissard <[email protected]> Signed-off-by: Samuel Ortiz <[email protected]>
2015-06-11drm/msm: use __s32, __s64, __u32 and __u64 from linux/types.h for uabiMikko Rapeli1-38/+38
Fixes userspace compilation errors like: error: unknown type name ‘uint32_t’ Signed-off-by: Mikko Rapeli <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2015-06-11drm/msm/mdp4: Support NV12MT format in mdp4Rob Clark1-0/+15
Using fb modifier flag, support NV12MT format in MDP4. v2: - rework the modifier's description [Daniel Vetter's comment] - drop .set_mode_config() callback [Rob Clark's comment] v3: - change VENDOR's name and restrict usage to NV12 [pointed by Daniel] Signed-off-by: Rob Clark <[email protected]>
2015-06-11net/ethtool: Add current supported tunable optionsHadar Hen Zion1-0/+6
Add strings array of the current supported tunable options. Signed-off-by: Hadar Hen Zion <[email protected]> Reviewed-by: Amir Vadai <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2015-06-11vfio: powerpc/spapr: Support Dynamic DMA windowsAlexey Kardashevskiy1-3/+58
This adds create/remove window ioctls to create and remove DMA windows. sPAPR defines a Dynamic DMA windows capability which allows para-virtualized guests to create additional DMA windows on a PCI bus. The existing linux kernels use this new window to map the entire guest memory and switch to the direct DMA operations saving time on map/unmap requests which would normally happen in a big amounts. This adds 2 ioctl handlers - VFIO_IOMMU_SPAPR_TCE_CREATE and VFIO_IOMMU_SPAPR_TCE_REMOVE - to create and remove windows. Up to 2 windows are supported now by the hardware and by this driver. This changes VFIO_IOMMU_SPAPR_TCE_GET_INFO handler to return additional information such as a number of supported windows and maximum number levels of TCE tables. DDW is added as a capability, not as a SPAPR TCE IOMMU v2 unique feature as we still want to support v2 on platforms which cannot do DDW for the sake of TCE acceleration in KVM (coming soon). Signed-off-by: Alexey Kardashevskiy <[email protected]> [aw: for the vfio related changes] Acked-by: Alex Williamson <[email protected]> Reviewed-by: David Gibson <[email protected]> Signed-off-by: Michael Ellerman <[email protected]>
2015-06-11vfio: powerpc/spapr: Register memory and define IOMMU v2Alexey Kardashevskiy1-0/+27
The existing implementation accounts the whole DMA window in the locked_vm counter. This is going to be worse with multiple containers and huge DMA windows. Also, real-time accounting would requite additional tracking of accounted pages due to the page size difference - IOMMU uses 4K pages and system uses 4K or 64K pages. Another issue is that actual pages pinning/unpinning happens on every DMA map/unmap request. This does not affect the performance much now as we spend way too much time now on switching context between guest/userspace/host but this will start to matter when we add in-kernel DMA map/unmap acceleration. This introduces a new IOMMU type for SPAPR - VFIO_SPAPR_TCE_v2_IOMMU. New IOMMU deprecates VFIO_IOMMU_ENABLE/VFIO_IOMMU_DISABLE and introduces 2 new ioctls to register/unregister DMA memory - VFIO_IOMMU_SPAPR_REGISTER_MEMORY and VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY - which receive user space address and size of a memory region which needs to be pinned/unpinned and counted in locked_vm. New IOMMU splits physical pages pinning and TCE table update into 2 different operations. It requires: 1) guest pages to be registered first 2) consequent map/unmap requests to work only with pre-registered memory. For the default single window case this means that the entire guest (instead of 2GB) needs to be pinned before using VFIO. When a huge DMA window is added, no additional pinning will be required, otherwise it would be guest RAM + 2GB. The new memory registration ioctls are not supported by VFIO_SPAPR_TCE_IOMMU. Dynamic DMA window and in-kernel acceleration will require memory to be preregistered in order to work. The accounting is done per the user process. This advertises v2 SPAPR TCE IOMMU and restricts what the userspace can do with v1 or v2 IOMMUs. In order to support memory pre-registration, we need a way to track the use of every registered memory region and only allow unregistration if a region is not in use anymore. So we need a way to tell from what region the just cleared TCE was from. This adds a userspace view of the TCE table into iommu_table struct. It contains userspace address, one per TCE entry. The table is only allocated when the ownership over an IOMMU group is taken which means it is only used from outside of the powernv code (such as VFIO). As v2 IOMMU supports IODA2 and pre-IODA2 IOMMUs (which do not support DDW API), this creates a default DMA window for IODA2 for consistency. Signed-off-by: Alexey Kardashevskiy <[email protected]> [aw: for the vfio related changes] Acked-by: Alex Williamson <[email protected]> Reviewed-by: David Gibson <[email protected]> Signed-off-by: Michael Ellerman <[email protected]>
2015-06-10serial: stm32-usart: Add STM32 USART DriverMaxime Coquelin1-0/+3
This drivers adds support to the STM32 USART controller, which is a standard serial driver. Tested-by: Chanwoo Choi <[email protected]> Reviewed-by: Peter Hurley <[email protected]> Reviewed-by: Vladimir Zapolskiy <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Signed-off-by: Maxime Coquelin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-06-10drm/amdgpu: cleanup UAPI commentsChristian König1-41/+78
No functional change. Signed-off-by: Christian König <[email protected]> Reviewed-by: Alex Deucher <[email protected]>
2015-06-10drm/amdgpu: remove AMDGPU_CTX_OP_STATE_RUNNINGChristian König1-2/+0
Not used. Signed-off-by: Christian König <[email protected]> Reviewed-by: Alex Deucher <[email protected]>
2015-06-09[media] DocBook: Change format for enum dmx_output documentationMauro Carvalho Chehab1-3/+3
Use a table for the Demux output. No new information added here. They were all merged inside the table. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] dvb: dmx.h: don't use anonymous enumsMauro Carvalho Chehab1-3/+3
There are several anonymous enums here, used via a typedef. Well, we don't like typedefs on Kernel, so let's de-anonimize those enums. Then, latter, we may be able to get rid of the typedefs, at least from Kernelspace. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] dvb: frontend.h: add a note for the deprecated enums/structsMauro Carvalho Chehab1-0/+6
Let be clear, at the header, about what got deprecated. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] dvb: frontend.h: improve dvb_frontent_parameters commentMauro Carvalho Chehab1-6/+6
The comment for struct dvb_frontend_parameters is weird, as it mixes delivery system name (ATSC) with modulation names (QPSK, QAM, OFDM). Use delivery system names there on the frequency comment, as this is clearer, specially after 2GEN delivery systems. While here, add comments at the union, to make live easier for ones that may try to understand the convention used by the legacy API. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] frontend: Fix a typo at the commentsMauro Carvalho Chehab1-3/+3
The description of struct dtv_stats has a spmall typo: FE_SCALE_DECIBELS instead of FE_SCALE_DECIBEL Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] frontend: move legacy typedefs to the endMauro Carvalho Chehab1-43/+16
Just userspace need those typedefs. So, put it in the compat part of the header. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] frontend: Move legacy API enums/structs to the endMauro Carvalho Chehab1-58/+58
In order to better organize the header file, move the legacy API (DVBv3) support to the end, just before the ioctl definitions. This way, we can use just one #if for all of them. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] dvb: Get rid of typedev usage for enumsMauro Carvalho Chehab1-2/+2
The DVB API was originally defined using typedefs. This is against Kernel CodingStyle, and there's no good usage here. While we can't remove its usage on userspace, we can avoid its usage in Kernelspace. So, let's do it. This patch was generated by this shell script: for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done While here, make CodingStyle fixes on the affected lines. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Acked-by: Stefan Richter <[email protected]> # for drivers/media/firewire/*
2015-06-09[media] DocBook: add xrefs for enum fe_typeMauro Carvalho Chehab1-2/+4
The only enum that was missing xrefs at frontend.h is fe_type. Add xrefs for them. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] DocBook: properly document the delivery systemsMauro Carvalho Chehab1-2/+4
Use a table for the delivery systems. The table is organized by the type (cable, satellite, terrestrial) and shows what standards are not fully implemented. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] DocBook: better document the DVB-S2 rolloff factorMauro Carvalho Chehab1-2/+4
Instead of using a program listing, use a table and make clearer what each define means. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09[media] DocBook: document DVB-S2 pilot in a tableMauro Carvalho Chehab1-2/+4
Putting it into a table allows to comment each possible values, with makes more clear what field means. Also, it allows to do cross-references with the frontend.h. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2015-06-09can: cangw: introduce optional uid to reference created routing jobsOliver Hartkopp1-0/+5
Similar to referencing iptables rules by their line number this UID allows to reference created routing jobs, e.g. to alter configured data modifications. The UID is an optional non-zero value which can be provided at routing job creation time. When the UID is set the UID replaces the data modification configuration as job identification attribute e.g. at job removal time. Signed-off-by: Oliver Hartkopp <[email protected]> Signed-off-by: Marc Kleine-Budde <[email protected]>
2015-06-08drm/amdgpu: cleanup VA IOCTLChristian König1-16/+2
Remove the unnecessary returned status and make the IOCTL write only. Signed-off-by: Christian König <[email protected]> Reviewed-by: Alex Deucher <[email protected]>