* tmp-917a9:
ARM/vdso: Mark the vDSO code read-only after init
x86/vdso: Mark the vDSO code read-only after init
lkdtm: Verify that '__ro_after_init' works correctly
arch: Introduce post-init read-only memory
x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings
asm-generic: Consolidate mark_rodata_ro()
Linux 4.4.6
ld-version: Fix awk regex compile failure
target: Drop incorrect ABORT_TASK put for completed commands
block: don't optimize for non-cloned bio in bio_get_last_bvec()
MIPS: smp.c: Fix uninitialised temp_foreign_map
MIPS: Fix build error when SMP is used without GIC
ovl: fix getcwd() failure after unsuccessful rmdir
ovl: copy new uid/gid into overlayfs runtime inode
userfaultfd: don't block on the last VM updates at exit time
powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages
powerpc/powernv: Add a kmsg_dumper that flushes console output on panic
powerpc: Fix dedotify for binutils >= 2.26
Revert "drm/radeon/pm: adjust display configuration after powerstate"
drm/radeon: Fix error handling in radeon_flip_work_func.
drm/amdgpu: Fix error handling in amdgpu_flip_work_func.
Revert "drm/radeon: call hpd_irq_event on resume"
x86/mm: Fix slow_virt_to_phys() for X86_PAE again
gpu: ipu-v3: Do not bail out on missing optional port nodes
mac80211: Fix Public Action frame RX in AP mode
mac80211: check PN correctly for GCMP-encrypted fragmented MPDUs
mac80211: minstrel_ht: fix a logic error in RTS/CTS handling
mac80211: minstrel_ht: set default tx aggregation timeout to 0
mac80211: fix use of uninitialised values in RX aggregation
mac80211: minstrel: Change expected throughput unit back to Kbps
iwlwifi: mvm: inc pending frames counter also when txing non-sta
can: gs_usb: fixed disconnect bug by removing erroneous use of kfree()
cfg80211/wext: fix message ordering
wext: fix message delay/ordering
ovl: fix working on distributed fs as lower layer
ovl: ignore lower entries when checking purity of non-directory entries
ASoC: wm8958: Fix enum ctl accesses in a wrong type
ASoC: wm8994: Fix enum ctl accesses in a wrong type
ASoC: samsung: Use IRQ safe spin lock calls
ASoC: dapm: Fix ctl value accesses in a wrong type
ncpfs: fix a braino in OOM handling in ncp_fill_cache()
jffs2: reduce the breakage on recovery from halfway failed rename()
dmaengine: at_xdmac: fix residue computation
tracing: Fix check for cpu online when event is disabled
s390/dasd: fix diag 0x250 inline assembly
s390/mm: four page table levels vs. fork
KVM: MMU: fix reserved bit check for ept=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0
KVM: MMU: fix ept=0/pte.u=1/pte.w=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0 combo
KVM: PPC: Book3S HV: Sanitize special-purpose register values on guest exit
KVM: s390: correct fprs on SIGP (STOP AND) STORE STATUS
KVM: VMX: disable PEBS before a guest entry
kvm: cap halt polling at exactly halt_poll_ns
PCI: Allow a NULL "parent" pointer in pci_bus_assign_domain_nr()
ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
ARM: dts: dra7: do not gate cpsw clock due to errata i877
ARM: mvebu: fix overlap of Crypto SRAM with PCIe memory window
arm64: account for sparsemem section alignment when choosing vmemmap offset
Linux 4.4.5
drm/amdgpu: fix topaz/tonga gmc assignment in 4.4 stable
modules: fix longstanding /proc/kallsyms vs module insertion race.
drm/i915: refine qemu south bridge detection
drm/i915: more virtual south bridge detection
block: get the 1st and last bvec via helpers
block: check virt boundary in bio_will_gap()
drm/amdgpu: Use drm_calloc_large for VM page_tables array
thermal: cpu_cooling: fix out of bounds access in time_in_idle
i2c: brcmstb: allocate correct amount of memory for regmap
ubi: Fix out of bounds write in volume update code
cxl: Fix PSL timebase synchronization detection
MIPS: traps: Fix SIGFPE information leak from `do_ov' and `do_trap_or_bp'
MIPS: scache: Fix scache init with invalid line size.
USB: serial: option: add support for Quectel UC20
USB: serial: option: add support for Telit LE922 PID 0x1045
USB: qcserial: add Sierra Wireless EM74xx device ID
USB: qcserial: add Dell Wireless 5809e Gobi 4G HSPA+ (rev3)
USB: cp210x: Add ID for Parrot NMEA GPS Flight Recorder
usb: chipidea: otg: change workqueue ci_otg as freezable
ALSA: timer: Fix broken compat timer user status ioctl
ALSA: hdspm: Fix zero-division
ALSA: hdsp: Fix wrong boolean ctl value accesses
ALSA: hdspm: Fix wrong boolean ctl value accesses
ALSA: seq: oss: Don't drain at closing a client
ALSA: pcm: Fix ioctls for X32 ABI
ALSA: timer: Fix ioctls for X32 ABI
ALSA: rawmidi: Fix ioctls X32 ABI
ALSA: hda - Fix mic issues on Acer Aspire E1-472
ALSA: ctl: Fix ioctls for X32 ABI
ALSA: usb-audio: Add a quirk for Plantronics DA45
adv7604: fix tx 5v detect regression
dmaengine: pxa_dma: fix cyclic transfers
Fix directory hardlinks from deleted directories
jffs2: Fix page lock / f->sem deadlock
Revert "jffs2: Fix lock acquisition order bug in jffs2_write_begin"
Btrfs: fix loading of orphan roots leading to BUG_ON
pata-rb532-cf: get rid of the irq_to_gpio() call
tracing: Do not have 'comm' filter override event 'comm' field
ata: ahci: don't mark HotPlugCapable Ports as external/removable
PM / sleep / x86: Fix crash on graph trace through x86 suspend
arm64: vmemmap: use virtual projection of linear region
Adding Intel Lewisburg device IDs for SATA
writeback: flush inode cgroup wb switches instead of pinning super_block
block: bio: introduce helpers to get the 1st and last bvec
libata: Align ata_device's id on a cacheline
libata: fix HDIO_GET_32BIT ioctl
drm/amdgpu: return from atombios_dp_get_dpcd only when error
drm/amdgpu/gfx8: specify which engine to wait before vm flush
drm/amdgpu: apply gfx_v8 fixes to gfx_v7 as well
drm/amdgpu/pm: update current crtc info after setting the powerstate
drm/radeon/pm: update current crtc info after setting the powerstate
drm/ast: Fix incorrect register check for DRAM width
target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors
iommu/vt-d: Use BUS_NOTIFY_REMOVED_DEVICE in hotplug path
iommu/amd: Fix boot warning when device 00:00.0 is not iommu covered
iommu/amd: Apply workaround for ATS write permission check
arm/arm64: KVM: Fix ioctl error handling
KVM: x86: fix root cause for missed hardware breakpoints
vfio: fix ioctl error handling
Fix cifs_uniqueid_to_ino_t() function for s390x
CIFS: Fix SMB2+ interim response processing for read requests
cifs: fix out-of-bounds access in lease parsing
fbcon: set a default value to blink interval
kvm: x86: Update tsc multiplier on change.
mips/kvm: fix ioctl error handling
parisc: Fix ptrace syscall number and return value modification
PCI: keystone: Fix MSI code that retrieves struct pcie_port pointer
block: Initialize max_dev_sectors to 0
drm/amdgpu: mask out WC from BO on unsupported arches
btrfs: async-thread: Fix a use-after-free error for trace
btrfs: Fix no_space in write and rm loop
Btrfs: fix deadlock running delayed iputs at transaction commit time
drivers: sh: Restore legacy clock domain on SuperH platforms
use ->d_seq to get coherency between ->d_inode and ->d_flags
Linux 4.4.4
iwlwifi: mvm: don't allow sched scans without matches to be started
iwlwifi: update and fix 7265 series PCI IDs
iwlwifi: pcie: properly configure the debug buffer size for 8000
iwlwifi: dvm: fix WoWLAN
security: let security modules use PTRACE_MODE_* with bitmasks
IB/cma: Fix RDMA port validation for iWarp
x86/irq: Plug vector cleanup race
x86/irq: Call irq_force_move_complete with irq descriptor
x86/irq: Remove outgoing CPU from vector cleanup mask
x86/irq: Remove the cpumask allocation from send_cleanup_vector()
x86/irq: Clear move_in_progress before sending cleanup IPI
x86/irq: Remove offline cpus from vector cleanup
x86/irq: Get rid of code duplication
x86/irq: Copy vectormask instead of an AND operation
x86/irq: Check vector allocation early
x86/irq: Reorganize the search in assign_irq_vector
x86/irq: Reorganize the return path in assign_irq_vector
x86/irq: Do not use apic_chip_data.old_domain as temporary buffer
x86/irq: Validate that irq descriptor is still active
x86/irq: Fix a race in x86_vector_free_irqs()
x86/irq: Call chip->irq_set_affinity in proper context
x86/entry/compat: Add missing CLAC to entry_INT80_32
x86/mpx: Fix off-by-one comparison with nr_registers
hpfs: don't truncate the file when delete fails
do_last(): ELOOP failure exit should be done after leaving RCU mode
should_follow_link(): validate ->d_seq after having decided to follow
xen/pcifront: Fix mysterious crashes when NUMA locality information was extracted.
xen/pciback: Save the number of MSI-X entries to be copied later.
xen/pciback: Check PF instead of VF for PCI_COMMAND_MEMORY
xen/scsiback: correct frontend counting
xen/arm: correctly handle DMA mapping of compound pages
ARM: at91/dt: fix typo in sama5d2 pinmux descriptions
ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption
do_last(): don't let a bogus return value from ->open() et.al. to confuse us
kernel/resource.c: fix muxed resource handling in __request_region()
sunrpc/cache: fix off-by-one in qword_get()
tracing: Fix showing function event in available_events
powerpc/eeh: Fix partial hotplug criterion
KVM: x86: MMU: fix ubsan index-out-of-range warning
KVM: x86: fix conversion of addresses to linear in 32-bit protected mode
KVM: x86: fix missed hardware breakpoints
KVM: arm/arm64: vgic: Ensure bitmaps are long enough
KVM: async_pf: do not warn on page allocation failures
of/irq: Fix msi-map calculation for nonzero rid-base
NFSv4: Fix a dentry leak on alias use
nfs: fix nfs_size_to_loff_t
block: fix use-after-free in dio_bio_complete
bio: return EINTR if copying to user space got interrupted
i2c: i801: Adding Intel Lewisburg support for iTCO
phy: core: fix wrong err handle for phy_power_on
writeback: keep superblock pinned during cgroup writeback association switches
cgroup: make sure a parent css isn't offlined before its children
cpuset: make mm migration asynchronous
PCI/AER: Flush workqueue on device remove to avoid use-after-free
ARCv2: SMP: Emulate IPI to self using software triggered interrupt
ARCv2: STAR 9000950267: Handle return from intr to Delay Slot #2
libata: fix sff host state machine locking while polling
qla2xxx: Fix stale pointer access.
spi: atmel: fix gpio chip-select in case of non-DT platform
target: Fix race with SCF_SEND_DELAYED_TAS handling
target: Fix remote-port TMR ABORT + se_cmd fabric stop
target: Fix TAS handling for multi-session se_node_acls
target: Fix LUN_RESET active TMR descriptor handling
target: Fix LUN_RESET active I/O handling for ACK_KREF
ALSA: hda - Fixing background noise on Dell Inspiron 3162
ALSA: hda - Apply clock gate workaround to Skylake, too
Revert "workqueue: make sure delayed work run in local cpu"
workqueue: handle NUMA_NO_NODE for unbound pool_workqueue lookup
mac80211: Requeue work after scan complete for all VIF types.
rfkill: fix rfkill_fop_read wait_event usage
tick/nohz: Set the correct expiry when switching to nohz/lowres mode
perf stat: Do not clean event's private stats
cdc-acm:exclude Samsung phone 04e8:685d
Revert "Staging: panel: usleep_range is preferred over udelay"
Staging: speakup: Fix getting port information
sd: Optimal I/O size is in bytes, not sectors
libceph: don't spam dmesg with stray reply warnings
libceph: use the right footer size when skipping a message
libceph: don't bail early from try_read() when skipping a message
libceph: fix ceph_msg_revoke()
seccomp: always propagate NO_NEW_PRIVS on tsync
cpufreq: Fix NULL reference crash while accessing policy->governor_data
cpufreq: pxa2xx: fix pxa_cpufreq_change_voltage prototype
hwmon: (ads1015) Handle negative conversion values correctly
hwmon: (gpio-fan) Remove un-necessary speed_index lookup for thermal hook
hwmon: (dell-smm) Blacklist Dell Studio XPS 8000
Thermal: do thermal zone update after a cooling device registered
Thermal: handle thermal zone device properly during system sleep
Thermal: initialize thermal zone device correctly
IB/mlx5: Expose correct maximum number of CQE capacity
IB/qib: Support creating qps with GFP_NOIO flag
IB/qib: fix mcast detach when qp not attached
IB/cm: Fix a recently introduced deadlock
dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer
dmaengine: at_xdmac: fix resume for cyclic transfers
dmaengine: dw: fix cyclic transfer callbacks
dmaengine: dw: fix cyclic transfer setup
nfit: fix multi-interface dimm handling, acpi6.1 compatibility
ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot()
ACPI: Revert "ACPI / video: Add Dell Inspiron 5737 to the blacklist"
ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Satellite R830
ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Portege R700
lib: sw842: select crc32
uapi: update install list after nvme.h rename
ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list
ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list
toshiba_acpi: Fix blank screen at boot if transflective backlight is supported
make sure that freeing shmem fast symlinks is RCU-delayed
drm/radeon/pm: adjust display configuration after powerstate
drm/radeon: Don't hang in radeon_flip_work_func on disabled crtc. (v2)
drm: Fix treatment of drm_vblank_offdelay in drm_vblank_on() (v2)
drm: Fix drm_vblank_pre/post_modeset regression from Linux 4.4
drm: Prevent vblank counter bumps > 1 with active vblank clients. (v2)
drm: No-Op redundant calls to drm_vblank_off() (v2)
drm/radeon: use post-decrement in error handling
drm/qxl: use kmalloc_array to alloc reloc_info in qxl_process_single_command
drm/i915: fix error path in intel_setup_gmbus()
drm/i915/dsi: don't pass arbitrary data to sideband
drm/i915/dsi: defend gpio table against out of bounds access
drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
drm/i915: Don't reject primary plane windowing with color keying enabled on SKL+
drm/i915/dp: fall back to 18 bpp when sink capability is unknown
drm/i915: Make sure DC writes are coherent on flush.
drm/i915: Init power domains early in driver load
drm/i915: intel_hpd_init(): Fix suspend/resume reprobing
drm/i915: Restore inhibiting the load of the default context
drm: fix missing reference counting decrease
drm/radeon: hold reference to fences in radeon_sa_bo_new
drm/radeon: mask out WC from BO on unsupported arches
drm: add helper to check for wc memory support
drm/radeon: fix DP audio support for APU with DCE4.1 display engine
drm/radeon: Add a common function for DFS handling
drm/radeon: cleaned up VCO output settings for DP audio
drm/radeon: properly byte swap vce firmware setup
drm/radeon: clean up fujitsu quirks
drm/radeon: Fix "slow" audio over DP on DCE8+
drm/radeon: call hpd_irq_event on resume
drm/radeon: Fix off-by-one errors in radeon_vm_bo_set_addr
drm/dp/mst: deallocate payload on port destruction
drm/dp/mst: Reverse order of MST enable and clearing VC payload table.
drm/dp/mst: move GUID storage from mgr, port to only mst branch
drm/dp/mst: Calculate MST PBN with 31.32 fixed point
drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil
drm/dp/mst: fix in RAD element access
drm/dp/mst: fix in MSTB RAD initialization
drm/dp/mst: always send reply for UP request
drm/dp/mst: process broadcast messages correctly
drm/nouveau: platform: Fix deferred probe
drm/nouveau/disp/dp: ensure sink is powered up before attempting link training
drm/nouveau/display: Enable vblank irqs after display engine is on again.
drm/nouveau/kms: take mode_config mutex in connector hotplug path
drm/amdgpu/pm: adjust display configuration after powerstate
drm/amdgpu: Don't hang in amdgpu_flip_work_func on disabled crtc.
drm/amdgpu: use post-decrement in error handling
drm/amdgpu: fix issue with overlapping userptrs
drm/amdgpu: hold reference to fences in amdgpu_sa_bo_new (v2)
drm/amdgpu: remove unnecessary forward declaration
drm/amdgpu: fix s4 resume
drm/amdgpu: remove exp hardware support from iceland
drm/amdgpu: don't load MEC2 on topaz
drm/amdgpu: drop topaz support from gmc8 module
drm/amdgpu: pull topaz gmc bits into gmc_v7
drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above
drm/amdgpu: iceland use CI based MC IP
drm/amdgpu: move gmc7 support out of CIK dependency
drm/amdgpu: no need to load MC firmware on fiji
drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2
drm/amdgpu: fix tonga smu resume
drm/amdgpu: fix lost sync_to if scheduler is enabled.
drm/amdgpu: call hpd_irq_event on resume
drm/amdgpu: Fix off-by-one errors in amdgpu_vm_bo_map
drm/vmwgfx: respect 'nomodeset'
drm/vmwgfx: Fix a width / pitch mismatch on framebuffer updates
drm/vmwgfx: Fix an incorrect lock check
virtio_pci: fix use after free on release
virtio_balloon: fix race between migration and ballooning
virtio_balloon: fix race by fill and leak
regulator: mt6311: MT6311_REGULATOR needs to select REGMAP_I2C
regulator: axp20x: Fix GPIO LDO enable value for AXP22x
clk: exynos: use irqsave version of spin_lock to avoid deadlock with irqs
cxl: use correct operator when writing pcie config space values
sparc64: fix incorrect sign extension in sys_sparc64_personality
EDAC, mc_sysfs: Fix freeing bus' name
EDAC: Robustify workqueues destruction
MIPS: Fix buffer overflow in syscall_get_arguments()
MIPS: Fix some missing CONFIG_CPU_MIPSR6 #ifdefs
MIPS: hpet: Choose a safe value for the ETIME check
MIPS: Loongson-3: Fix SMP_ASK_C0COUNT IPI handler
Revert "MIPS: Fix PAGE_MASK definition"
cputime: Prevent 32bit overflow in time[val|spec]_to_cputime()
time: Avoid signed overflow in timekeeping_get_ns()
Bluetooth: 6lowpan: Fix handling of uncompressed IPv6 packets
Bluetooth: 6lowpan: Fix kernel NULL pointer dereferences
Bluetooth: Fix incorrect removing of IRKs
Bluetooth: Add support of Toshiba Broadcom based devices
Bluetooth: Use continuous scanning when creating LE connections
Drivers: hv: vmbus: Fix a Host signaling bug
tools: hv: vss: fix the write()'s argument: error -> vss_msg
mmc: sdhci: Allow override of get_cd() called from sdhci_request()
mmc: sdhci: Allow override of mmc host operations
mmc: sdhci-pci: Fix card detect race for Intel BXT/APL
mmc: pxamci: fix again read-only gpio detection polarity
mmc: sdhci-acpi: Fix card detect race for Intel BXT/APL
mmc: mmci: fix an ages old detection error
mmc: core: Enable tuning according to the actual timing
mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off()
mmc: mmc: Fix incorrect use of driver strength switching HS200 and HS400
mmc: sdio: Fix invalid vdd in voltage switch power cycle
mmc: sdhci: Fix DMA descriptor with zero data length
mmc: sdhci-pci: Do not default to 33 Ohm driver strength for Intel SPT
mmc: usdhi6rol0: handle NULL data in timeout
clockevents/tcb_clksrc: Prevent disabling an already disabled clock
posix-clock: Fix return code on the poll method's error path
irqchip/gic-v3-its: Fix double ICC_EOIR write for LPI in EOImode==1
irqchip/atmel-aic: Fix wrong bit operation for IRQ priority
irqchip/mxs: Add missing set_handle_irq()
irqchip/omap-intc: Add support for spurious irq handling
coresight: checking for NULL string in coresight_name_match()
dm: fix dm_rq_target_io leak on faults with .request_fn DM w/ blk-mq paths
dm snapshot: fix hung bios when copy error occurs
dm space map metadata: remove unused variable in brb_pop()
tda1004x: only update the frontend properties if locked
vb2: fix a regression in poll() behavior for output,streams
gspca: ov534/topro: prevent a division by 0
si2157: return -EINVAL if firmware blob is too big
media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode
rc: sunxi-cir: Initialize the spinlock properly
namei: ->d_inode of a pinned dentry is stable only for positives
mei: validate request value in client notify request ioctl
mei: fix fasync return value on error
rtlwifi: rtl8723be: Fix module parameter initialization
rtlwifi: rtl8188ee: Fix module parameter initialization
rtlwifi: rtl8192se: Fix module parameter initialization
rtlwifi: rtl8723ae: Fix initialization of module parameters
rtlwifi: rtl8192de: Fix incorrect module parameter descriptions
rtlwifi: rtl8192ce: Fix handling of module parameters
rtlwifi: rtl8192cu: Add missing parameter setup
rtlwifi: rtl_pci: Fix kernel panic
locks: fix unlock when fcntl_setlk races with a close
um: link with -lpthread
uml: fix hostfs mknod()
uml: flush stdout before forking
s390/fpu: signals vs. floating point control register
s390/compat: correct restore of high gprs on signal return
s390/dasd: fix performance drop
s390/dasd: fix refcount for PAV reassignment
s390/dasd: prevent incorrect length error under z/VM after PAV changes
s390: fix normalization bug in exception table sorting
btrfs: initialize the seq counter in struct btrfs_device
Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots
Btrfs: fix transaction handle leak on failure to create hard link
Btrfs: fix number of transaction units required to create symlink
Btrfs: send, don't BUG_ON() when an empty symlink is found
btrfs: statfs: report zero available if metadata are exhausted
Btrfs: igrab inode in writepage
Btrfs: add missing brelse when superblock checksum fails
KVM: s390: fix memory overwrites when vx is disabled
s390/kvm: remove dependency on struct save_area definition
clocksource/drivers/vt8500: Increase the minimum delta
genirq: Validate action before dereferencing it in handle_irq_event_percpu()
mm: numa: quickly fail allocations for NUMA balancing on full nodes
mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED
ocfs2: unlock inode if deleting inode from orphan fails
drm/i915: shut up gen8+ SDE irq dmesg noise
iw_cxgb3: Fix incorrectly returning error on success
spi: omap2-mcspi: Prevent duplicate gpio_request
drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE
USB: option: add "4G LTE usb-modem U901"
USB: option: add support for SIM7100E
USB: cp210x: add IDs for GE B650V3 and B850V3 boards
usb: dwc3: Fix assignment of EP transfer resources
can: ems_usb: Fix possible tx overflow
dm thin: fix race condition when destroying thin pool workqueue
bcache: Change refill_dirty() to always scan entire disk if necessary
bcache: prevent crash on changing writeback_running
bcache: allows use of register in udev to avoid "device_busy" error.
bcache: unregister reboot notifier if bcache fails to unregister device
bcache: fix a leak in bch_cached_dev_run()
bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing device
bcache: Add a cond_resched() call to gc
bcache: fix a livelock when we cause a huge number of cache misses
lib/ucs2_string: Correct ucs2 -> utf8 conversion
efi: Add pstore variables to the deletion whitelist
efi: Make efivarfs entries immutable by default
efi: Make our variable validation list include the guid
efi: Do variable name validation tests in utf8
efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version
lib/ucs2_string: Add ucs2 -> utf8 helper functions
ARM: 8457/1: psci-smp is built only for SMP
drm/gma500: Use correct unref in the gem bo create function
devm_memremap: Fix error value when memremap failed
KVM: s390: fix guest fprs memory leak
arm64: errata: Add -mpc-relative-literal-loads to build flags
ARM: debug-ll: fix BCM63xx entry for multiplatform
ext4: fix bh->b_state corruption
sctp: Fix port hash table size computation
unix_diag: fix incorrect sign extension in unix_lookup_by_ino
tipc: unlock in error path
rtnl: RTM_GETNETCONF: fix wrong return value
IFF_NO_QUEUE: Fix for drivers not calling ether_setup()
tcp/dccp: fix another race at listener dismantle
route: check and remove route cache when we get route
net_sched fix: reclassification needs to consider ether protocol changes
pppoe: fix reference counting in PPPoE proxy
l2tp: Fix error creating L2TP tunnels
net/mlx4_en: Avoid changing dev->features directly in run-time
net/mlx4_en: Choose time-stamping shift value according to HW frequency
net/mlx4_en: Count HW buffer overrun only once
qmi_wwan: add "4G LTE usb-modem U901"
tcp: md5: release request socket instead of listener
tipc: fix premature addition of node to lookup table
af_unix: Guard against other == sk in unix_dgram_sendmsg
af_unix: Don't set err in unix_stream_read_generic unless there was an error
ipv4: fix memory leaks in ip_cmsg_send() callers
bonding: Fix ARP monitor validation
bpf: fix branch offset adjustment on backjumps after patching ctx expansion
flow_dissector: Fix unaligned access in __skb_flow_dissector when used by eth_get_headlen
net: Copy inner L3 and L4 headers as unaligned on GRE TEB
sctp: translate network order to host order when users get a hmacid
enic: increment devcmd2 result ring in case of timeout
tg3: Fix for tg3 transmit queue 0 timed out when too many gso_segs
net:Add sysctl_max_skb_frags
tcp: do not drop syn_recv on all icmp reports
unix: correctly track in-flight fds in sending process user_struct
ipv6: fix a lockdep splat
ipv6: addrconf: Fix recursive spin lock call
ipv6/udp: use sticky pktinfo egress ifindex on connect()
ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail()
tcp: beware of alignments in tcp_get_info()
switchdev: Require RTNL mutex to be held when sending FDB notifications
inet: frag: Always orphan skbs inside ip_defrag()
tipc: fix connection abort during subscription cancel
net: dsa: fix mv88e6xxx switches
sctp: allow setting SCTP_SACK_IMMEDIATELY by the application
pptp: fix illegal memory access caused by multiple bind()s
af_unix: fix struct pid memory leak
tcp: fix NULL deref in tcp_v4_send_ack()
lwt: fix rx checksum setting for lwt devices tunneling over ipv6
tunnels: Allow IPv6 UDP checksums to be correctly controlled.
net: dp83640: Fix tx timestamp overflow handling.
gro: Make GRO aware of lightweight tunnels.
af_iucv: Validate socket address length in iucv_sock_bind()
Conflicts:
arch/arm64/Makefile
arch/arm64/include/asm/cacheflush.h
drivers/mmc/host/sdhci.c
drivers/usb/dwc3/ep0.c
drivers/usb/dwc3/gadget.c
kernel/module.c
sound/core/pcm_compat.c
CRs-Fixed: 1010239
Signed-off-by: Runmin Wang <runminw@codeaurora.org>
Change-Id: I41a28636fc9ad91f9d979b191784609476294cdf
Allow virtual timers i.e. CNTV_TVAL_EL0 to be accessed
by userspace.
CRs-Fixed: 1018301
Change-Id: I724ddbf4e7c02ee25622c6712210aee948d037f6
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
arch_timer register accesses happen more frequently flooding the
RTB logs. Since they are not that useful for debugging purposes,
use _no_log variants while accessing those registers.
Change-Id: Ide35ef1a01e4792c1b3b7b7be7ad3f069dc2f694
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
[satyap: trivial merge conflict resolution]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
A user space application is planned to support feature for
synchronized timestamp among debug packets across peripherals.
As part of the feature, it is responsible for providing physical
timer count value to user space. If memory mapped timer is used
in ARM arch, Usersapce can't read the physical timer count directly
with a MRCC ASM instruction. So Kernel traps the instruction and
returns the physical timer count.
Change-Id: Ia3f0d9c8c06ca9e2204187890c0c57c8640e4f7e
Signed-off-by: Se Wang (Patrick) Oh <sewango@codeaurora.org>
[abhimany: minor merge conflict resolution]
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
A user space application is planned to support feature for
synchronized timestamp among debug packets across peripherals.
As part of the feature, it is responsible for providing physical
timer count value to user space. So Enable user access to the
physical counter in cp15 register.
Change-Id: Idf7f6375713d842925e6f72a4b1fb98a7168726d
Signed-off-by: Se Wang (Patrick) Oh <sewango@codeaurora.org>
commit f02b4b72d12cbae7020a959e2ed0410a464b4cc4 upstream.
clockevents_exchange_device is calling clockevents_shutdown() on the new
clockenvents device but it may have never been enabled in the first place.
This results in the tcb clock being disabled without being enabled first:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:680 clk_disable+0x28/0x34()
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Not tainted 4.4.0+ #6
Hardware name: Atmel AT91SAM9
[<c000f2b8>] (unwind_backtrace) from [<c000d01c>] (show_stack+0x10/0x14)
[<c000d01c>] (show_stack) from [<c00172f0>] (warn_slowpath_common+0x78/0xa0)
[<c00172f0>] (warn_slowpath_common) from [<c00173a8>] (warn_slowpath_null+0x18/0x20)
[<c00173a8>] (warn_slowpath_null) from [<c0361528>] (clk_disable+0x28/0x34)
[<c0361528>] (clk_disable) from [<c034d560>] (tc_shutdown+0x38/0x4c)
[<c034d560>] (tc_shutdown) from [<c0059ad4>] (clockevents_switch_state+0x38/0x6c)
[<c0059ad4>] (clockevents_switch_state) from [<c0059b18>] (clockevents_shutdown+0x10/0x24)
[<c0059b18>] (clockevents_shutdown) from [<c005a458>] (tick_check_new_device+0x84/0xac)
[<c005a458>] (tick_check_new_device) from [<c0059660>] (clockevents_register_device+0x7c/0x108)
[<c0059660>] (clockevents_register_device) from [<c06b5a68>] (tcb_clksrc_init+0x390/0x3e8)
[<c06b5a68>] (tcb_clksrc_init) from [<c00097cc>] (do_one_initcall+0x114/0x1d4)
[<c00097cc>] (do_one_initcall) from [<c069bd54>] (kernel_init_freeable+0xfc/0x1b8)
[<c069bd54>] (kernel_init_freeable) from [<c04c3818>] (kernel_init+0x8/0xe0)
[<c04c3818>] (kernel_init) from [<c000a410>] (ret_from_fork+0x14/0x24)
---[ end trace 0000000000000001 ]---
Check what state we were in before trying to disable the clock.
Fixes: cf4541c101 ("clockevents/drivers/tcb_clksrc: Migrate to new 'set-state' interface")
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/1452854061-30370-1-git-send-email-alexandre.belloni@free-electrons.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f9eccf24615672896dc13251410c3f2f33a14f95 upstream.
The vt8500 clocksource driver declares itself as capable to handle the
minimum delay of 4 cycles by passing the value into
clockevents_config_and_register(). The vt8500_timer_set_next_event()
requires the passed cycles value to be at least 16. The impact is that
userspace hangs in nanosleep() calls with small delay intervals.
This problem is reproducible in Linux 4.2 starting from:
c6eb3f70d4 ('hrtimer: Get rid of hrtimer softirq')
From Russell King, more detailed explanation:
"It's a speciality of the StrongARM/PXA hardware. It takes a certain
number of OSCR cycles for the value written to hit the compare registers.
So, if a very small delta is written (eg, the compare register is written
with a value of OSCR + 1), the OSCR will have incremented past this value
before it hits the underlying hardware. The result is, that you end up
waiting a very long time for the OSCR to wrap before the event fires.
So, we introduce a check in set_next_event() to detect this and return
-ETIME if the calculated delta is too small, which causes the generic
clockevents code to retry after adding the min_delta specified in
clockevents_config_and_register() to the current time value.
min_delta must be sufficient that we don't re-trip the -ETIME check - if
we do, we will return -ETIME, forward the next event time, try to set it,
return -ETIME again, and basically lock the system up. So, min_delta
must be larger than the check inside set_next_event(). A factor of two
was chosen to ensure that this situation would never occur.
The PXA code worked on PXA systems for years, and I'd suggest no one
changes this mechanism without access to a wide range of PXA systems,
otherwise they're risking breakage."
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Alexey Charkov <alchark@gmail.com>
Signed-off-by: Roman Volkov <rvolkov@v1ros.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The EP93xx is registering a clocksource of 40 bits with
clocksource_mmio_init() but this is not working because of this
artificial limitation. It works fine to lift the uppe limit to
64 bits, and since cycle_t is u64, it should intuitively have been
like that from the beginning.
Fixes: 000bc17817 "ARM: ep93xx: switch to GENERIC_CLOCKEVENTS"
Reported-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/1449768101-6879-1-git-send-email-linus.walleij@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
We can now select clocksource drivers like ti-32k and CONFIG_OF
on ancient machines that still use gettimeoffset, and the combination
results in a link error.
arch/arm/kernel/built-in.o: In function `time_init':
(.init.text+0xc28): undefined reference to `clocksource_probe'
The reason for this is that the Makefile is hidden behind
CONFIG_ARCH_USES_GETTIMEOFFSET, but the Kconfig file is not, and
it has shown up just now because the ti-32k driver was added
and can be selected using COMPILE_TEST on all platforms.
This patch hides the Kconfig menu in CONFIG_ARCH_USES_GETTIMEOFFSET
as well.
Fixes: dfedaf105d "clocksource: ti-32k: make it depend on GENERIC_CLOCKSOURCE"
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Felipe Balbi <balbi@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/7579471.4N90fYPQOK@wuerfel
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The ftm_clockevent_init passes the value of "~0UL" into a function
that takes a 32-bit argument, which drops the upper 32 bits, as
gcc warns about on ARM64:
clocksource/fsl_ftm_timer.c: In function 'ftm_clockevent_init':
clocksource/fsl_ftm_timer.c:206:13: warning: large integer implicitly truncated to unsigned type [-Woverflow]
This was obviously unintended behavior, and is easily avoided by
using '~0u' as the integer literal, because that is 32-bit wide
on all architectures.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Xiubo Li <Li.Xiubo@freescale.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/3990834.xnjhm37Grs@wuerfel
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Pull MIPS updates from Ralf Baechle:
"These are the highlists of the main MIPS pull request for 4.4:
- Add latencytop support
- Support appended DTBs
- VDSO support and initially use it for gettimeofday.
- Drop the .MIPS.abiflags and ELF NOTE sections from vmlinux
- Support for the 5KE, an internal test core.
- Switch all MIPS platfroms to libata drivers.
- Improved support, cleanups for ralink and Lantiq platforms.
- Support for the new xilfpga platform.
- A number of DTB improvments for BMIPS.
- Improved support for CM and CPS.
- Minor JZ4740 and BCM47xx enhancements"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (120 commits)
MIPS: idle: add case for CPU_5KE
MIPS: Octeon: Support APPENDED_DTB
MIPS: vmlinux: create a section for appended DTB
MIPS: Clean up compat_siginfo_t
MIPS: Fix PAGE_MASK definition
MIPS: BMIPS: Enable GZIP ramdisk and timed printks
MIPS: Add xilfpga defconfig
MIPS: xilfpga: Add mipsfpga platform code
MIPS: xilfpga: Add xilfpga device tree files.
dt-bindings: MIPS: Document xilfpga bindings and boot style
MIPS: Make MIPS_CMDLINE_DTB default
MIPS: Make the kernel arguments from dtb available
MIPS: Use USE_OF as the guard for appended dtb
MIPS: BCM63XX: Use pr_* instead of printk
MIPS: Loongson: Cleanup CONFIG_LOONGSON_SUSPEND.
MIPS: lantiq: Disable xbar fpi burst mode
MIPS: lantiq: Force the crossbar to big endian
MIPS: lantiq: Initialize the USB core on boot
MIPS: lantiq: Return correct value for fpi clock on ar9
MIPS: ralink: Add missing clock on rt305x
...
Add user-mode implementations of gettimeofday() and clock_gettime() to
the VDSO. This is currently usable with 2 clocksources: the CP0 count
register, which is accessible to user-mode via RDHWR on R2 and later
cores, or the MIPS Global Interrupt Controller (GIC) timer, which
provides a "user-mode visible" section containing a mirror of its
counter registers. This section must be mapped into user memory, which
is done below the VDSO data page.
When a supported clocksource is not in use, the VDSO functions will
return -ENOSYS, which causes libc to fall back on the standard syscall
path.
When support for neither of these clocksources is compiled into the
kernel at all, the VDSO still provides clock_gettime(), as the coarse
realtime/monotonic clocks can still be implemented. However,
gettimeofday() is not provided in this case as nothing can be done
without a suitable clocksource. This causes the symbol lookup to fail
in libc and it will then always use the standard syscall path.
This patch includes a workaround for a bug in QEMU which results in
RDHWR on the CP0 count register always returning a constant (incorrect)
value. A fix for this has been submitted, and the workaround can be
removed after the fix has been in stable releases for a reasonable
amount of time.
A simple performance test which calls gettimeofday() 1000 times in a
loop and calculates the average execution time gives the following
results on a Malta + I6400 (running at 20MHz):
- Syscall: ~31000 ns
- VDSO (GIC): ~15000 ns
- VDSO (CP0): ~9500 ns
[markos.chandras@imgtec.com:
- Minor code re-arrangements in order for mappings to be made
in the order they appear to the process' address space.
- Move do_{monotonic, realtime} outside of the MIPS_CLOCK_VSYSCALL ifdef
- Use gic_get_usm_range so we can do the GIC mapping in the
arch/mips/kernel/vdso instead of the GIC irqchip driver]
Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11338/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
As we've enabled multiplatform kernels on ARM, and greatly done away with
the contents under arch/arm/mach-*, there's still need for SoC-related
drivers to go somewhere.
Many of them go in through other driver trees, but we still have
drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
that might be shared between ARM and ARM64 (or just in general makes
sense to not have under the architecture directory).
This branch contains mostly such code:
- Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate
with power management blocks on these SoCs for use by clock, regulator and
bus frequency drivers.
- Allwinner Reduced Serial Bus driver, again used to communicate with PMICs.
- Drivers for ARM's SCPI (System Control Processor). Not to be confused with
PSCI (Power State Coordination Interface). SCPI is used to communicate with
the assistant embedded cores doing power management, and we have yet to see
how many of them will implement this for their hardware vs abstracting in
other ways (or not at all like in the past).
- To make confusion between SCPI and PSCI more likely, this release also
includes an update of PSCI to interface version 1.0.
- Rockchip support for power domains.
- A driver to talk to the firmware on Raspberry Pi.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"As we've enabled multiplatform kernels on ARM, and greatly done away
with the contents under arch/arm/mach-*, there's still need for
SoC-related drivers to go somewhere.
Many of them go in through other driver trees, but we still have
drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
that might be shared between ARM and ARM64 (or just in general makes
sense to not have under the architecture directory).
This branch contains mostly such code:
- Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to
communicate with power management blocks on these SoCs for use by
clock, regulator and bus frequency drivers.
- Allwinner Reduced Serial Bus driver, again used to communicate with
PMICs.
- Drivers for ARM's SCPI (System Control Processor). Not to be
confused with PSCI (Power State Coordination Interface). SCPI is
used to communicate with the assistant embedded cores doing power
management, and we have yet to see how many of them will implement
this for their hardware vs abstracting in other ways (or not at all
like in the past).
- To make confusion between SCPI and PSCI more likely, this release
also includes an update of PSCI to interface version 1.0.
- Rockchip support for power domains.
- A driver to talk to the firmware on Raspberry Pi"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits)
soc: qcom: smd-rpm: Correct size of outgoing message
bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus
bus: sunxi-rsb: Add Allwinner Reduced Serial Bus (RSB) controller bindings
ARM: bcm2835: add mutual inclusion protection
drivers: psci: make PSCI 1.0 functions initialization version dependent
dt-bindings: Correct paths in Rockchip power domains binding document
soc: rockchip: power-domain: don't try to print the clock name in error case
soc: qcom/smem: add HWSPINLOCK dependency
clk: berlin: add cpuclk
ARM: berlin: dts: add CLKID_CPU for BG2Q
ARM: bcm2835: Add the Raspberry Pi firmware driver
soc: qcom: smem: Move RPM message ram out of smem DT node
soc: qcom: smd-rpm: Correct the active vs sleep state flagging
soc: qcom: smd: delete unneeded of_node_put
firmware: qcom-scm: build for correct architecture level
soc: qcom: smd: Correct SMEM items for upper channels
qcom-scm: add missing prototype for qcom_scm_is_available()
qcom-scm: fix endianess issue in __qcom_scm_is_call_available
soc: qcom: smd: Reject send of too big packets
soc: qcom: smd: Handle big endian CPUs
...
Again we have a sizable (but not huge) cleanup branch with a net delta of about
-3k lines.
Main contents here is:
- A bunch of development/cleanup of a few PXA boards
- Removal of bockw platforms on shmobile, since the platform has now gone
completely multiplatform. Whee!
- move of the 32kHz timer on OMAP to a proper timesource
- Misc cleanup of older OMAP material (incl removal of one board file)
- Switch over to new common PWM lookup support for several platforms
There's also a handful of other cleanups across the tree, but the above are
the major pieces.
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson:
"Again we have a sizable (but not huge) cleanup branch with a net delta
of about -3k lines.
Main contents here is:
- A bunch of development/cleanup of a few PXA boards
- Removal of bockw platforms on shmobile, since the platform has now
gone completely multiplatform. Whee!
- move of the 32kHz timer on OMAP to a proper timesource
- Misc cleanup of older OMAP material (incl removal of one board
file)
- Switch over to new common PWM lookup support for several platforms
There's also a handful of other cleanups across the tree, but the
above are the major pieces"
* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (103 commits)
ARM: OMAP3: hwmod data: Remove legacy mailbox data and addrs
ARM: DRA7: hwmod data: Remove spinlock hwmod addrs
ARM: OMAP4: hwmod data: Remove spinlock hwmod addrs
ARM: DRA7/AM335x/AM437x: hwmod: Remove gpmc address space from hwmod data
ARM: Remove __ref on hotplug cpu die path
ARM: Remove open-coded version of IRQCHIP_DECLARE
arm: omap2: board-generic: use omap4_local_timer_init for AM437x
ARM: DRA7/AM335x/AM437x: hwmod: Remove elm address space from hwmod data
ARM: OMAP: Remove duplicated operand in OR operation
clocksource: ti-32k: make it depend on GENERIC_CLOCKSOURCE
ARM: pxa: remove incorrect __init annotation on pxa27x_set_pwrmode
ARM: pxa: raumfeld: make some variables static
ARM: OMAP: Change all cpu_is_* occurences to soc_is_* for id.c
ARM: OMAP2+: Rename cpu_is macros to soc_is
arm: omap2: timer: limit hwmod usage to non-DT boots
arm: omap2+: select 32k clocksource driver
clocksource: add TI 32.768 Hz counter driver
arm: omap2: timer: rename omap_sync32k_timer_init()
arm: omap2: timer: always call clocksource_of_init() when DT
arm: omap2: timer: move realtime_counter_init() around
...
- ACPICA update to upstream revision 20150930 (Bob Moore, Lv Zheng).
The most significant change is to allow the AML debugger to be
built into the kernel. On top of that there is an update related
to the NFIT table (the ACPI persistent memory interface)
and a few fixes and cleanups.
- ACPI CPPC2 (Collaborative Processor Performance Control v2)
support along with a cpufreq frontend (Ashwin Chaugule).
This can only be enabled on ARM64 at this point.
- New ACPI infrastructure for the early probing of IRQ chips and
clock sources (Marc Zyngier).
- Support for a new hierarchical properties extension of the ACPI
_DSD (Device Specific Data) device configuration object allowing
the kernel to handle hierarchical properties (provided by the
platform firmware this way) automatically and make them available
to device drivers via the generic device properties interface
(Rafael Wysocki).
- Generic device properties API extension to obtain an index of
certain string value in an array of strings, along the lines of
of_property_match_string(), but working for all of the supported
firmware node types, and support for the "dma-names" device
property based on it (Mika Westerberg).
- ACPI core fix to parse the MADT (Multiple APIC Description Table)
entries in the order expected by platform firmware (and mandated
by the specification) to avoid confusion on systems with more than
255 logical CPUs (Lukasz Anaczkowski).
- Consolidation of the ACPI-based handling of PCI host bridges
on x86 and ia64 (Jiang Liu).
- ACPI core fixes to ensure that the correct IRQ number is used to
represent the SCI (System Control Interrupt) in the cases when
it has been re-mapped (Chen Yu).
- New ACPI backlight quirk for Lenovo IdeaPad S405 (Hans de Goede).
- ACPI EC driver fixes (Lv Zheng).
- Assorted ACPI fixes and cleanups (Dan Carpenter, Insu Yun, Jiri
Kosina, Rami Rosen, Rasmus Villemoes).
- New mechanism in the PM core allowing drivers to check if the
platform firmware is going to be involved in the upcoming system
suspend or if it has been involved in the suspend the system is
resuming from at the moment (Rafael Wysocki).
This should allow drivers to optimize their suspend/resume
handling in some cases and the changes include a couple of users
of it (the i8042 input driver, PCI PM).
- PCI PM fix to prevent runtime-suspended devices with PME enabled
from being resumed during system suspend even if they aren't
configured to wake up the system from sleep (Rafael Wysocki).
- New mechanism to report the number of a wakeup IRQ that woke up
the system from sleep last time (Alexandra Yates).
- Removal of unused interfaces from the generic power domains
framework and fixes related to latency measurements in that
code (Ulf Hansson, Daniel Lezcano).
- cpufreq core sysfs interface rework to make it handle CPUs that
share performance scaling settings (represented by a common
cpufreq policy object) more symmetrically (Viresh Kumar).
This should help to simplify the CPU offline/online handling among
other things.
- cpufreq core fixes and cleanups (Viresh Kumar).
- intel_pstate fixes related to the Turbo Activation Ratio (TAR)
mechanism on client platforms which causes the turbo P-states
range to vary depending on platform firmware settings (Srinivas
Pandruvada).
- intel_pstate sysfs interface fix (Prarit Bhargava).
- Assorted cpufreq driver (imx, tegra20, powernv, integrator) fixes
and cleanups (Bai Ping, Bartlomiej Zolnierkiewicz, Shilpasri G
Bhat, Luis de Bethencourt).
- cpuidle mvebu driver cleanups (Russell King).
- OPP (Operating Performance Points) framework code reorganization
to make it more maintainable (Viresh Kumar).
- Intel Broxton support for the RAPL (Running Average Power Limits)
power capping driver (Amy Wiles).
- Assorted power management code fixes and cleanups (Dan Carpenter,
Geert Uytterhoeven, Geliang Tang, Luis de Bethencourt, Rasmus
Villemoes).
/
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Merge tag 'pm+acpi-4.4-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael Wysocki:
"Quite a new features are included this time.
First off, the Collaborative Processor Performance Control interface
(version 2) defined by ACPI will now be supported on ARM64 along with
a cpufreq frontend for CPU performance scaling.
Second, ACPI gets a new infrastructure for the early probing of IRQ
chips and clock sources (along the lines of the existing similar
mechanism for DT).
Next, the ACPI core and the generic device properties API will now
support a recently introduced hierarchical properties extension of the
_DSD (Device Specific Data) ACPI device configuration object. If the
ACPI platform firmware uses that extension to organize device
properties in a hierarchical way, the kernel will automatically handle
it and make those properties available to device drivers via the
generic device properties API.
It also will be possible to build the ACPICA's AML interpreter
debugger into the kernel now and use that to diagnose AML-related
problems more efficiently. In the future, this should make it
possible to single-step AML execution and do similar things.
Interesting stuff, although somewhat experimental at this point.
Finally, the PM core gets a new mechanism that can be used by device
drivers to distinguish between suspend-to-RAM (based on platform
firmware support) and suspend-to-idle (or other variants of system
suspend the platform firmware is not involved in) and possibly
optimize their device suspend/resume handling accordingly.
In addition to that, some existing features are re-organized quite
substantially.
First, the ACPI-based handling of PCI host bridges on x86 and ia64 is
unified and the common code goes into the ACPI core (so as to reduce
code duplication and eliminate non-essential differences between the
two architectures in that area).
Second, the Operating Performance Points (OPP) framework is
reorganized to make the code easier to find and follow.
Next, the cpufreq core's sysfs interface is reorganized to get rid of
the "primary CPU" concept for configurations in which the same
performance scaling settings are shared between multiple CPUs.
Finally, some interfaces that aren't necessary any more are dropped
from the generic power domains framework.
On top of the above we have some minor extensions, cleanups and bug
fixes in multiple places, as usual.
Specifics:
- ACPICA update to upstream revision 20150930 (Bob Moore, Lv Zheng).
The most significant change is to allow the AML debugger to be
built into the kernel. On top of that there is an update related
to the NFIT table (the ACPI persistent memory interface) and a few
fixes and cleanups.
- ACPI CPPC2 (Collaborative Processor Performance Control v2) support
along with a cpufreq frontend (Ashwin Chaugule).
This can only be enabled on ARM64 at this point.
- New ACPI infrastructure for the early probing of IRQ chips and
clock sources (Marc Zyngier).
- Support for a new hierarchical properties extension of the ACPI
_DSD (Device Specific Data) device configuration object allowing
the kernel to handle hierarchical properties (provided by the
platform firmware this way) automatically and make them available
to device drivers via the generic device properties interface
(Rafael Wysocki).
- Generic device properties API extension to obtain an index of
certain string value in an array of strings, along the lines of
of_property_match_string(), but working for all of the supported
firmware node types, and support for the "dma-names" device
property based on it (Mika Westerberg).
- ACPI core fix to parse the MADT (Multiple APIC Description Table)
entries in the order expected by platform firmware (and mandated by
the specification) to avoid confusion on systems with more than 255
logical CPUs (Lukasz Anaczkowski).
- Consolidation of the ACPI-based handling of PCI host bridges on x86
and ia64 (Jiang Liu).
- ACPI core fixes to ensure that the correct IRQ number is used to
represent the SCI (System Control Interrupt) in the cases when it
has been re-mapped (Chen Yu).
- New ACPI backlight quirk for Lenovo IdeaPad S405 (Hans de Goede).
- ACPI EC driver fixes (Lv Zheng).
- Assorted ACPI fixes and cleanups (Dan Carpenter, Insu Yun, Jiri
Kosina, Rami Rosen, Rasmus Villemoes).
- New mechanism in the PM core allowing drivers to check if the
platform firmware is going to be involved in the upcoming system
suspend or if it has been involved in the suspend the system is
resuming from at the moment (Rafael Wysocki).
This should allow drivers to optimize their suspend/resume handling
in some cases and the changes include a couple of users of it (the
i8042 input driver, PCI PM).
- PCI PM fix to prevent runtime-suspended devices with PME enabled
from being resumed during system suspend even if they aren't
configured to wake up the system from sleep (Rafael Wysocki).
- New mechanism to report the number of a wakeup IRQ that woke up the
system from sleep last time (Alexandra Yates).
- Removal of unused interfaces from the generic power domains
framework and fixes related to latency measurements in that code
(Ulf Hansson, Daniel Lezcano).
- cpufreq core sysfs interface rework to make it handle CPUs that
share performance scaling settings (represented by a common cpufreq
policy object) more symmetrically (Viresh Kumar).
This should help to simplify the CPU offline/online handling among
other things.
- cpufreq core fixes and cleanups (Viresh Kumar).
- intel_pstate fixes related to the Turbo Activation Ratio (TAR)
mechanism on client platforms which causes the turbo P-states range
to vary depending on platform firmware settings (Srinivas
Pandruvada).
- intel_pstate sysfs interface fix (Prarit Bhargava).
- Assorted cpufreq driver (imx, tegra20, powernv, integrator) fixes
and cleanups (Bai Ping, Bartlomiej Zolnierkiewicz, Shilpasri G
Bhat, Luis de Bethencourt).
- cpuidle mvebu driver cleanups (Russell King).
- OPP (Operating Performance Points) framework code reorganization to
make it more maintainable (Viresh Kumar).
- Intel Broxton support for the RAPL (Running Average Power Limits)
power capping driver (Amy Wiles).
- Assorted power management code fixes and cleanups (Dan Carpenter,
Geert Uytterhoeven, Geliang Tang, Luis de Bethencourt, Rasmus
Villemoes)"
* tag 'pm+acpi-4.4-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (108 commits)
cpufreq: postfix policy directory with the first CPU in related_cpus
cpufreq: create cpu/cpufreq/policyX directories
cpufreq: remove cpufreq_sysfs_{create|remove}_file()
cpufreq: create cpu/cpufreq at boot time
cpufreq: Use cpumask_copy instead of cpumask_or to copy a mask
cpufreq: ondemand: Drop unnecessary locks from update_sampling_rate()
PM / Domains: Merge measurements for PM QoS device latencies
PM / Domains: Don't measure ->start|stop() latency in system PM callbacks
PM / clk: Fix broken build due to non-matching code and header #ifdefs
ACPI / Documentation: add copy_dsdt to ACPI format options
ACPI / sysfs: correctly check failing memory allocation
ACPI / video: Add a quirk to force native backlight on Lenovo IdeaPad S405
ACPI / CPPC: Fix potential memory leak
ACPI / CPPC: signedness bug in register_pcc_channel()
ACPI / PAD: power_saving_thread() is not freezable
ACPI / PM: Fix incorrect wakeup IRQ setting during suspend-to-idle
ACPI: Using correct irq when waiting for events
ACPI: Use correct IRQ when uninstalling ACPI interrupt handler
cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver
cpuidle: mvebu: clean up multiple platform drivers
...
Pull x86 apic changes from Ingo Molnar:
"The main changes in this cycle were:
- Numachip updates: new hardware support, fixes and cleanups.
(Daniel J Blueman)
- misc smaller cleanups and fixlets"
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/io_apic: Make eoi_ioapic_pin() static
x86/irq: Drop unlikely before IS_ERR_OR_NULL
x86/x2apic: Make stub functions available even if !CONFIG_X86_LOCAL_APIC
x86/apic: Deinline various functions
x86/numachip: Fix timer build conflict
x86/numachip: Introduce Numachip2 timer mechanisms
x86/numachip: Add Numachip IPI optimisations
x86/numachip: Add Numachip2 APIC support
x86/numachip: Cleanup Numachip support
Pull timer updates from Thomas Gleixner:
"The timer departement provides:
- More y2038 work in the area of ntp and pps.
- Optimization of posix cpu timers
- New time related selftests
- Some new clocksource drivers
- The usual pile of fixes, cleanups and improvements"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
timeconst: Update path in comment
timers/x86/hpet: Type adjustments
clocksource/drivers/armada-370-xp: Implement ARM delay timer
clocksource/drivers/tango_xtal: Add new timer for Tango SoCs
clocksource/drivers/imx: Allow timer irq affinity change
clocksource/drivers/exynos_mct: Use container_of() instead of this_cpu_ptr()
clocksource/drivers/h8300_*: Remove unneeded memset()s
clocksource/drivers/sh_cmt: Remove unneeded memset() in sh_cmt_setup()
clocksource/drivers/em_sti: Remove unneeded memset()s
clocksource/drivers/mediatek: Use GPT as sched clock source
clockevents/drivers/mtk: Fix spurious interrupt leading to crash
posix_cpu_timer: Reduce unnecessary sighand lock contention
posix_cpu_timer: Convert cputimer->running to bool
posix_cpu_timer: Check thread timers only when there are active thread timers
posix_cpu_timer: Optimize fastpath_timer_check()
timers, kselftest: Add 'adjtick' test to validate adjtimex() tick adjustments
timers: Use __fls in apply_slack()
clocksource: Remove return statement from void functions
net: sfc: avoid using timespec
ntp/pps: use y2038 safe types in pps_event_time
...
On the r7s72100 Genmai board the MTU2 driver currently triggers a common
clock framework WARN_ON(enable_count) when disabling the clock due to
the MTU2 driver after recent callback rework may call ->set_state_shutdown()
multiple times. A similar issue was spotted for the TMU driver and fixed in:
452b132 clocksource/drivers/sh_tmu: Fix traceback spotted in -next
On r7s72100 Genmai v4.3-rc7 built with shmobile_defconfig spits out the
following during boot:
sh_mtu2 fcff0000.timer: ch0: used for clock events
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:675 clk_core_disable+0x2c/0x6c()
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.3.0-rc7 #1
Hardware name: Generic R7S72100 (Flattened Device Tree)
Backtrace:
[<c00133d4>] (dump_backtrace) from [<c0013570>] (show_stack+0x18/0x1c)
[<c0013558>] (show_stack) from [<c01c7aac>] (dump_stack+0x74/0x90)
[<c01c7a38>] (dump_stack) from [<c00272fc>] (warn_slowpath_common+0x88/0xb4)
[<c0027274>] (warn_slowpath_common) from [<c0027400>] (warn_slowpath_null+0x24/0x2c)
[<c00273dc>] (warn_slowpath_null) from [<c03a9320>] (clk_core_disable+0x2c/0x6c)
[<c03a92f4>] (clk_core_disable) from [<c03aa0a0>] (clk_disable+0x40/0x4c)
[<c03aa060>] (clk_disable) from [<c0395d2c>] (sh_mtu2_disable+0x24/0x50)
[<c0395d08>] (sh_mtu2_disable) from [<c0395d6c>] (sh_mtu2_clock_event_shutdown+0x14/0x1c)
[<c0395d58>] (sh_mtu2_clock_event_shutdown) from [<c007d7d0>] (clockevents_switch_state+0xc8/0x114)
[<c007d708>] (clockevents_switch_state) from [<c007d834>] (clockevents_shutdown+0x18/0x28)
[<c007d81c>] (clockevents_shutdown) from [<c007dd58>] (clockevents_exchange_device+0x70/0x78)
[<c007dce8>] (clockevents_exchange_device) from [<c007e578>] (tick_check_new_device+0x88/0xe0)
[<c007e4f0>] (tick_check_new_device) from [<c007daf0>] (clockevents_register_device+0xac/0x120)
[<c007da44>] (clockevents_register_device) from [<c0395be8>] (sh_mtu2_probe+0x230/0x350)
[<c03959b8>] (sh_mtu2_probe) from [<c028b6f0>] (platform_drv_probe+0x50/0x98)
Reported-by: Chris Brandt <chris.brandt@renesas.com>
Fixes: 19a9ffb ("clockevents/drivers/sh_mtu2: Migrate to new 'set-state' interface")
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Having a traceable function in the sched_clock() path leads to a recursion
within ftrace and a kernel crash.
We should not trace digicolor_timer_sched_read() function. Fix this by adding
the notrace attribute to this function.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Having a traceable function in the sched_clock() path leads to a recursion
within ftrace and a kernel crash.
We should not trace the ftm_read_sched_clock() function.
Fix this by adding the notrace attribute to this function.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Having a traceable function in the sched_clock() path leads to a recursion
within ftrace and a kernel crash.
We should not trace the pit_read_sched_clock() function. Fix this by adding a
notrace attribute to this function.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Currently prima2 timer can be used as a scheduler clock. We properly
marked sirfsoc_read_sched_clock() as notrace but we then call another
function sirfsoc_timer_read() that _wasn't_ notrace.
Having a traceable function in the sched_clock() path leads to a recursion
within ftrace and a kernel crash.
Fix this by adding notrace attribute to the sirfsoc_timer_read() function.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Currently samsung_pwm_timer can be used as a scheduler clock. We properly
marked samsung_read_sched_clock() as notrace but we then call another
function samsung_clocksource_read() that _wasn't_ notrace.
Having a traceable function in the sched_clock() path leads to a recursion
within ftrace and a kernel crash.
Fix this by adding notrace attribute to the samsung_clocksource_read()
function.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Currently pistachio can be used as a scheduler clock. We properly marked
pistachio_read_sched_clock() as notrace but we then call another function
pistachio_clocksource_read_cycles() that _wasn't_ notrace.
Having a traceable function in the sched_clock() path leads to a recursion
within ftrace and a kernel crash.
Fix this by adding notrace attribute to the pistachio_clocksource_read_cycles()
function.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Currently arm_global_timer can be used as a scheduler clock. We properly
marked gt_sched_clock_read() as notrace but we then call another function
gt_counter_read() that _wasn't_ notrace.
Having a traceable function in the sched_clock() path leads to a recursion
within ftrace and a kernel crash.
Fix this by adding an extra notrace function to keep other users of
gt_counter_read() traceable.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Implement an ARM delay timer to be used for udelay() on Armada 37x
platforms. This allows us to skip the delay loop calibration at boot,
saving 180ms on the boot time of the kernel (which is around 10%).
It also means that udelay() will be unaffected by CPU frequency changes
when cpufreq is enabled on these platforms.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
the new ti 32k clocksource driver should depend on
GENERIC_CLOCKSOURCE because of its reliance on
sched_clock_register().
Let's enable that to avoid any possible build errors
and/or warnings on randbuilds.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Introduce a new clocksource driver for Texas
Instruments 32.768 Hz device which is available
on most OMAP-like devices.
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Sigma Designs Tango platforms provide a 27 MHz crystal oscillator.
Use it for clocksource, sched_clock, and delay_timer.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Allow the timer core to change the smp affinity of the broadcast timer
irq by setting CLOCK_EVT_FEAT_DYNIRQ flag. For this to work the timer
core needs to be told about the used irq.
This reduces interrupt pressure and wakeups on CPU0 as well as vastly
reducing the number of timer broadcast IPIs.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Since evt structure is embedded in per-CPU mevt structure it's
definitely faster to use container_of() to get access to mevt
if we have evt (for example as incoming function argument) instead
of more expensive approach with this_cpu_ptr(&percpu_mct_tick).
this_cpu_ptr() on per-CPU mevt structure leads to access to cp15
to get cpu id and arithmetic operations.
Container_of() is cheaper since it's just one asm instruction.
This should work if used evt pointer is correct and owned by
local mevt structure.
For example, before this patch set_state_shutdown() looks like:
4a4: e92d4010 push {r4, lr}
4a8: e3004000 movw r4, #0
4ac: ebfffffe bl 0 <debug_smp_processor_id>
4b0: e3003000 movw r3, #0
4b4: e3404000 movt r4, #0
4b8: e3403000 movt r3, #0
4bc: e7933100 ldr r3, [r3, r0, lsl #2]
4c0: e0844003 add r4, r4, r3
4c4: e59400c0 ldr r0, [r4, #192] ; 0xc0
4c8: ebffffd4 bl 420 <exynos4_mct_tick_stop.isra.1>
4cc: e3a00000 mov r0, #0
4d0: e8bd8010 pop {r4, pc}
With this patch:
4a4: e92d4010 push {r4, lr}
4a8: e59000c0 ldr r0, [r0, #192] ; 0xc0
4ac: ebffffdb bl 420 <exynos4_mct_tick_stop.isra.1>
4b0: e3a00000 mov r0, #0
4b4: e8bd8010 pop {r4, pc}
Also, for me size of exynos_mct.o decreased from 84588 bytes
to 83956.
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Memory for timer16_priv, timer8_priv and tpu_priv structs is
allocated by devm_kzalloc() in corresponding probe functions
of drivers.
No need to zero it one more time.
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Memory for cmt struct is allocated by kzalloc() in sh_cmt_setup.
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Memory for cs and ced fields in struct em_sti_priv is allocated
by devm_kzalloc() in the beginning of em_sti_probe() so they
don't need to be zeroed one more time in
em_sti_register_clocksource() and in em_sti_register_clockevent().
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
When cpu is in deep idle, arch timer will stop counting. Setup GPT as
sched clock source so it can keep counting in idle.
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
After analysis done by Yingjoe Chen, the timer appears to have a pending
interrupt when it is enabled.
Fix this by acknowledging the pending interrupt when enabling the timer
interrupt.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
- properly get the slow clock from timer-atmel-st, tcb_clksrc and pwm-atmel-tcb
- small fix in an error path for tcb_clksrc
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Merge tag 'at91-cleanup-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/drivers
Merge "First batch of cleanups for 4.4:" from Alexandre Belloni:
- properly get the slow clock from timer-atmel-st, tcb_clksrc and pwm-atmel-tcb
- small fix in an error path for tcb_clksrc
* tag 'at91-cleanup-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
misc: atmel_tclib: get and use slow clock
clocksource: tcb_clksrc: fix setup_clkevents error path
clocksource: atmel-st: get and use slow clock
Commit dca1a4b5ff ("clk: at91: keep slow clk enabled to prevent system
hang") added a workaround for the slow clock as it is not properly handled
by its users.
Get and use the slow clock as it is necessary for the timer counters.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
t2_clk is already disabled before request_irq(), it must not be disabled
again.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
The current slow clock rate is hardcoded. Properly get the slow clock
and use its rate.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Seeing the 'of' characters in a symbol that is being called from
ACPI seems to freak out people. So let's do a bit of pointless
renaming so that these folks do feel at home.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
It is now absolutely trivial to convert the arch timer driver to
use ACPI probing, just like its DT counterpart.
Let's enjoy another crapectomy.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The clocksource probing infrastructure currently depends on
CONFIG_CLKSRC_OF, which depends on CONFIG_OF. In order to make
this infrastructure selectable even if CONFIG_OF is not selected,
introduce a new CONFIG_CLKSRC_PROBE (which allow the infrastructure
to be compiled in), and CONFIG_CLKSRC_ACPI (which is the pendent
of CONFIG_CLKSRC_OF for ACPI).
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
DT enjoys a rather nice probing infrastructure for clocksources,
while ACPI is so far stuck into a very distant past.
This patch introduces a declarative API, allowing clocksources
to be self-contained and be called when parsing the GTDT table.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The current code assumes the 'irq_of_parse_and_map' will return NO_IRQ in case
of failure. Unfortunately, the NO_IRQ is not consistent across the different
architectures and we must not rely on it.
NO_IRQ is equal to '-1' on ARM and 'irq_of_parse_and_map' returns '0' in case
of an error. Hence, the latter won't be detected and will lead to a crash.
Fix this by just checking 'irq' is different from zero.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
The current code assumes the 'irq_of_parse_and_map' will return NO_IRQ in case
of failure. Unfortunately, the NO_IRQ is not consistent across the different
architectures and we must not rely on it.
NO_IRQ is equal to '-1' on ARM and 'irq_of_parse_and_map' returns '0' in case
of an error. Hence, the latter won't be detected and will lead to a crash.
Fix this by just checking 'irq' is different from zero.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Fix Numachip build conflict from:
ce2e572 x86/numachip: Introduce Numachip2 timer mechanisms
drivers/built-in.o:(.discard+0x1b): multiple definition of `__pcpu_unique_cpu_ced'
arch/x86/built-in.o:(.discard+0xa0da): first defined here
Ensure cpu_ced is unique by prefixing with 'numachip2'.
Signed-off-by: Daniel J Blueman <daniel@numascale.com>
Cc: <tipbuild@zytor.com>
Cc: <kbuild-all@01.org>
Cc: Steffen Persvold <sp@numascale.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Add 1GHz 64-bit Numachip2 clocksource timer support for accurate
system-wide timekeeping, as core TSCs are unsynchronised.
Additionally, add a per-core clockevent mechanism that interrupts via the
platform IPI vector after a programmed period.
[ tglx: Taking it through x86 due to dependencies ]
Signed-off-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Steffen Persvold <sp@numascale.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/1442829745-29311-1-git-send-email-daniel@numascale.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
- New Clocksource driver from ST
- New MFD/ACPI/DMA drivers for Intel's Sunrisepoint PCH based platforms
- Add support for Arizona WM8998 and WM1814
- Add support for Dialog Semi DA9062 and DA9063
- Add support for Kontron COMe-bBL6 and COMe-cBW6
- Add support for X-Powers AXP152
- Add support for Atmel, many
- Add support for STMPE, many
- Add support for USB in X-Powers AXP22X
- Core Frameworks
- New Base API to traverse devices and their children in reverse order
- Bug Fixes
- Fix race between runtime-suspend and IRQs
- Obtain platform data form more reliable source
- Fix-ups
- Constifying things
- Variable signage changes
- Kconfig depends|selects changes
- Make use of BIT() macro
- Do not supply .owner attribute in *_driver structures
- MAINTAINERS entries
- Stop using set_irq_flags()
- Start using irq_set_chained_handler_and_data()
- Export DT device ID structures
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Merge tag 'mfd-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Device Support:
- New Clocksource driver from ST
- New MFD/ACPI/DMA drivers for Intel's Sunrisepoint PCH based platforms
- Add support for Arizona WM8998 and WM1814
- Add support for Dialog Semi DA9062 and DA9063
- Add support for Kontron COMe-bBL6 and COMe-cBW6
- Add support for X-Powers AXP152
- Add support for Atmel, many
- Add support for STMPE, many
- Add support for USB in X-Powers AXP22X
Core Frameworks:
- New Base API to traverse devices and their children in reverse order
Bug Fixes:
- Fix race between runtime-suspend and IRQs
- Obtain platform data form more reliable source
Fix-ups:
- Constifying things
- Variable signage changes
- Kconfig depends|selects changes
- Make use of BIT() macro
- Do not supply .owner attribute in *_driver structures
- MAINTAINERS entries
- Stop using set_irq_flags()
- Start using irq_set_chained_handler_and_data()
- Export DT device ID structures"
* tag 'mfd-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (69 commits)
mfd: jz4740-adc: Init mask cache in generic IRQ chip
mfd: cros_ec: spi: Add OF match table
mfd: stmpe: Add OF match table
mfd: max77686: Split out regulator part from the DT binding
mfd: Add DT binding for Maxim MAX77802 IC
mfd: max77686: Use a generic name for the PMIC node in the example
mfd: max77686: Don't suggest in binding to use a deprecated property
mfd: Add MFD_CROS_EC dependencies
mfd: cros_ec: Remove CROS_EC_PROTO dependency for SPI and I2C drivers
mfd: axp20x: Add a cell for the usb power_supply part of the axp20x PMICs
mfd: axp20x: Add missing registers, and mark more registers volatile
mfd: arizona: Fixup some formatting/white space errors
mfd: wm8994: Fix NULL pointer exception on missing pdata
of: Add vendor prefix for Nuvoton
mfd: mt6397: Implement wake handler and suspend/resume to handle wake up event
mfd: atmel-hlcdc: Add support for new SoCs
mfd: Export OF module alias information in missing drivers
mfd: stw481x: Export I2C module alias information
mfd: da9062: Support for the DA9063 OnKey in the DA9062 core
mfd: max899x: Avoid redundant irq_data lookup
...
