Currently, the perf's hotplug management is split between the
core and the PMU driver. That is, the PMU driver is responsible
for starting and stopping the perf-event counter in the cases
where the CPU is coming up and going down, respectively. However,
this approach is not scalable for the growing number of PMU drivers.
Moreover, due to partial cleanup at the perf-core, currently the
perf-events are prone to race conditions, for example between the
CPU hotplug teardown callback (perf_event_exit_cpu()) and the hrtimer
handler (perf_mux_hrtimer_handler()) that's used for multiplexing
the events.
Hence, the approach here is to achieve the hotplug management
at the perf-core level. The idea is to detach the event from the
context (perf_remove_from_context()), when the CPU is about to come
down and re-attach it back (perf_install_in_context()), when the CPU
comes back online.
The approach involves removing the logic for maintaining zombie
events (PERF_EVENT_STATE_ZOMBIE) and let the dormant list itself
carry the events whose CPUs are offline.
Change-Id: I39503d1f4b0b3937920b666a4f04875162fad3b3
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
Raghavendra Rao Anantaauthored and Gerrit - the friendly Code Review servercommited 2019-01-21 01:59:52 -08:00
The registration of idle notifier in the armv7 PMU driver is
currently being done as a part of the probe. However, issues
might arise if the idle notifier is called during the probe
itself as the data used by the notifier callback would not
have been initialized yet. As a result, move the registration
of idle notifier after the probe completes successfully.
Change-Id: Ifb3e2bc9eed5a42fcf876274ea644c99ebef2a08
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
Signed-off-by: Sundara Vinayagam <sundvi@codeaurora.org>
Raghavendra Rao Anantaauthored and Sundara Vinayagamcommited 2018-05-30 21:46:02 +05:30
* refs/heads/tmp-960923f:
Linux 4.9.89
usb: gadget: bdc: 64-bit pointer capability check
usb: dwc3: Fix GDBGFIFOSPACE_TYPE values
USB: gadget: udc: Add missing platform_device_put() on error in bdc_pci_probe()
scsi: qla2xxx: Fix extraneous ref on sp's after adapter break
btrfs: Fix use-after-free when cleaning up fs_devs with a single stale device
btrfs: alloc_chunk: fix DUP stripe size handling
scsi: sg: only check for dxfer_len greater than 256M
scsi: sg: fix static checker warning in sg_is_valid_dxfer
scsi: sg: fix SG_DXFER_FROM_DEV transfers
irqchip/gic-v3-its: Ensure nr_ites >= nr_lpis
fs/aio: Use RCU accessors for kioctx_table->table[]
fs/aio: Add explicit RCU grace period when freeing kioctx
lock_parent() needs to recheck if dentry got __dentry_kill'ed under it
fs: Teach path_connected to handle nfs filesystems with multiple roots.
drm/amdgpu/dce: Don't turn off DP sink when disconnected
drm/amdgpu: fix prime teardown order
ALSA: seq: Clear client entry before deleting else at closing
ALSA: seq: Fix possible UAF in snd_seq_check_queue()
ALSA: hda - Revert power_save option default value
ALSA: pcm: Fix UAF in snd_pcm_oss_get_formats()
parisc: Handle case where flush_cache_range is called with no context
x86/mm: Fix vmalloc_fault to use pXd_large
x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist
x86/speculation, objtool: Annotate indirect calls/jumps for objtool on 32-bit kernels
x86/vm86/32: Fix POPF emulation
selftests/x86/entry_from_vm86: Add test cases for POPF
selftests/x86: Add tests for the STR and SLDT instructions
selftests/x86: Add tests for User-Mode Instruction Prevention
selftests/x86/entry_from_vm86: Exit with 1 if we fail
x86/cpufeatures: Add Intel PCONFIG cpufeature
x86/boot/32: Fix UP boot on Quark and possibly other platforms
net: hns: Some checkpatch.pl script & warning fixes
ima: relax requiring a file signature for new files with zero length
locking/locktorture: Fix num reader/writer corner cases
rcutorture/configinit: Fix build directory error message
ipvlan: add L2 check for packets arriving via virtual devices
ASoC: nuc900: Fix a loop timeout test
mac80211: remove BUG() when interface type is invalid
mac80211_hwsim: enforce PS_MANUAL_POLL to be set after PS_ENABLED
agp/intel: Flush all chipset writes after updating the GGTT
powerpc/modules: Don't try to restore r2 after a sibling call
drm/amdkfd: Fix memory leaks in kfd topology
veth: set peer GSO values
media: cpia2: Fix a couple off by one bugs
media: vsp1: Prevent suspending and resuming DRM pipelines
scsi: dh: add new rdac devices
scsi: devinfo: apply to HP XP the same flags as Hitachi VSP
scsi: core: scsi_get_device_flags_keyed(): Always return device flags
bnxt_en: Don't print "Link speed -1 no longer supported" messages.
spi: sun6i: disable/unprepare clocks on remove
tools/usbip: fixes build with musl libc toolchain
ath10k: fix invalid STS_CAP_OFFSET_MASK
mwifiex: cfg80211: do not change virtual interface during scan processing
clk: qcom: msm8916: fix mnd_width for codec_digcodec
pwm: stmpe: Fix wrong register offset for hwpwm=2 case
scsi: ses: don't ask for diagnostic pages repeatedly during probe
ath10k: update tdls teardown state to target
power: supply: ab8500_charger: Bail out in case of error in 'ab8500_charger_init_hw_registers()'
power: supply: ab8500_charger: Fix an error handling path
leds: pm8058: Silence pointer to integer size warning
userns: Don't fail follow_automount based on s_user_ns
mtd: nand: ifc: update bufnum mask for ver >= 2.0.0
ARM: dts: omap3-n900: Fix the audio CODEC's reset pin
ARM: dts: am335x-pepper: Fix the audio CODEC's reset pin
net: thunderx: Set max queue count taking XDP_TX into account
mtd: nand: fix interpretation of NAND_CMD_NONE in nand_command[_lp]()
net: xfrm: allow clearing socket xfrm policies.
net: ieee802154: adf7242: Fix bug if defined DEBUG
test_firmware: fix setting old custom fw path back on exit
sched: Stop resched_cpu() from sending IPIs to offline CPUs
sched: Stop switched_to_rt() from sending IPIs to offline CPUs
ARM: dts: exynos: Correct Trats2 panel reset line
clk: meson: gxbb: fix wrong clock for SARADC/SANA
iwlwifi: mvm: rs: don't override the rate history in the search cycle
HID: elo: clear BTN_LEFT mapping
video/hdmi: Allow "empty" HDMI infoframes
drm/edid: set ELD connector type in drm_edid_to_eld()
mwifiex: Fix invalid port issue
perf stat: Fix bug in handling events in error state
wil6210: fix memory access violation in wil_memcpy_from/toio_32
wil6210: fix protection against connections during reset
ath10k: fix compile time sanity check for CE4 buffer size
mac80211_hwsim: use per-interface power level
Bluetooth: 6lowpan: fix delay work init in add_peer_chan()
Bluetooth: Avoid bt_accept_unlink() double unlinking
clk: qcom: msm8996: Fix the vfe1 powerdomain name
pwm: tegra: Increase precision in PWM rate calculation
kprobes/x86: Set kprobes pages read-only
kprobes/x86: Fix kprobe-booster not to boost far call instructions
ALSA: hda: Add Geminilake id to SKL_PLUS
scsi: sg: close race condition in sg_remove_sfp_usercontext()
scsi: sg: check for valid direction before starting the request
vfio/spapr_tce: Check kzalloc() return when preregistering memory
vfio/powerpc/spapr_tce: Enforce IOMMU type compatibility check
perf session: Don't rely on evlist in pipe mode
net: fec: add phy-reset-gpios PROBE_DEFER check
perf inject: Copy events when reordering events in pipe mode
drivers/perf: arm_pmu: handle no platform_device
iwlwifi: mvm: fix RX SKB header size and align it properly
perf evsel: Return exact sub event which failed with EPERM for wildcards
usb: gadget: dummy_hcd: Fix wrong power status bit clear/reset in dummy_hub_control()
usb: dwc2: Make sure we disconnect the gadget state
powerpc/nohash: Fix use of mmu_has_feature() in setup_initial_memory_limit()
md.c:didn't unlock the mddev before return EINVAL in array_size_store
md/raid6: Fix anomily when recovering a single device in RAID6.
regulator: isl9305: fix array size
v4l: vsp1: Register pipe with output WPF
v4l: vsp1: Prevent multiple streamon race commencing pipeline early
MIPS: r2-on-r6-emu: Clear BLTZALL and BGEZALL debugfs counters
MIPS: r2-on-r6-emu: Fix BLEZL and BGTZL identification
MIPS: BPF: Fix multiple problems in JIT skb access helpers.
MIPS: BPF: Quit clobbering callee saved registers in JIT code.
serial: imx: setup DCEDTE early and ensure DCD and RI irqs to be off
tty: amba-pl011: Fix spurious TX interrupts
lkdtm: turn off kcov for lkdtm_rodata_do_nothing:
coresight: Fixes coresight DT parse to get correct output port ID.
i40e: only register client on iWarp-capable devices
drm/rockchip: vop: Enable pm domain before vop_initial
drm/amdgpu: Fail fb creation from imported dma-bufs. (v2)
drm/radeon: Fail fb creation from imported dma-bufs.
video: ARM CLCD: fix dma allocation size
kvm: nVMX: Disallow userspace-injected exceptions in guest mode
kvm/svm: Setup MCG_CAP on AMD properly
iommu/iova: Fix underflow bug in __alloc_and_insert_iova_range
apparmor: Make path_max parameter readonly
qed: Correct MSI-x for storage
scsi: ses: don't get power status of SES device slot on probe
EDAC, altera: Fix peripheral warnings for Cyclone5
fm10k: correctly check if interface is removed
ALSA: firewire-digi00x: handle all MIDI messages on streaming packets
ALSA: firewire-digi00x: add support for console models of Digi00x series
IB/hfi1: Check for QSFP presence before attempting reads
ASoC: rt5677: Add OF device ID table
reiserfs: Make cancel_old_flush() reliable
ARM: dts: koelsch: Correct clock frequency of X2 DU clock input
drm: rcar-du: Handle event when disabling CRTCs
printk: Correctly handle preemption in console_unlock()
rtmutex: Fix PI chain order integrity
qed: Fix TM block ILT allocation
net/faraday: Add missing include of of.h
net: hns: Correct HNS RSS key set function
powerpc: Avoid taking a data miss on every userspace instruction miss
ARM: dts: r8a7793: Correct parent of SSI[0-9] clocks
ARM: dts: r8a7791: Correct parent of SSI[0-9] clocks
ARM: dts: r8a7790: Correct parent of SSI[0-9] clocks
ARM: dts: r7s72100: fix ethernet clock parent
NFC: pn533: change order of free_irq and dev unregistration
NFC: nfcmrvl: double free on error path
NFC: nfcmrvl: Include unaligned.h instead of access_ok.h
vxlan: vxlan dev should inherit lowerdev's gso_max_size
drm/vmwgfx: Fixes to vmwgfx_fb
braille-console: Fix value returned by _braille_console_setup
powerpc/mm/hugetlb: Filter out hugepage size not supported by page table layout
PCI: Apply Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices
bonding: refine bond_fold_stats() wrap detection
drm/ttm: never add BO that failed to validate to the LRU list
f2fs: relax node version check for victim data in gc
perf trace: Handle unpaired raw_syscalls:sys_exit event
regulator: core: Limit propagation of parent voltage count and list
blk-throttle: make sure expire time isn't too big
ARM: dts: silk: Correct clock of DU1
ARM: dts: r8a7794: Correct clock of DU1
ARM: dts: r8a7794: Add DU1 clock to device tree
ALSA: firewire-lib: add a quirk of packet without valid EOH in CIP format
mm: Fix false-positive VM_BUG_ON() in page_cache_{get,add}_speculative()
bonding: make speed, duplex setting consistent with link state
driver: (adm1275) set the m,b and R coefficients correctly for power
scsi: be2iscsi: Check tag in beiscsi_mccq_compl_wait
i40e/i40evf: Fix use after free in Rx cleanup path
perf buildid: Do not assume that readlink() returns a null terminated string
perf annotate: Fix a bug following symbolic link of a build-id file
ARM: dts: bcm2835: add index to the ethernet alias
usb: dwc3: make sure UX_EXIT_PX is cleared
dmaengine: imx-sdma: add 1ms delay to ensure SDMA channel is stopped
tcp: sysctl: Fix a race to avoid unexpected 0 window from space
spi: omap2-mcspi: poll OMAP2_MCSPI_CHSTAT_RXS for PIO transfer
ASoC: rcar: ssi: don't set SSICR.CKDV = 000 with SSIWSR.CONT
PCI: hv: Lock PCI bus on device eject
PCI: hv: Properly handle PCI bus remove
sched: act_csum: don't mangle TCP and UDP GSO packets
Input: qt1070 - add OF device ID table
sysrq: Reset the watchdog timers while displaying high-resolution timers
timers, sched_clock: Update timeout for clock wrap
media: i2c/soc_camera: fix ov6650 sensor getting wrong clock
scsi: ipr: Fix missed EH wakeup
scsi: fnic: Fix for "Number of Active IOs" in fnicstats becoming negative
x86/boot/32: Defer resyncing initial_page_table until per-cpu is set up
solo6x10: release vb2 buffers in solo_stop_streaming()
of: fix of_device_get_modalias returned length when truncating buffers
batman-adv: handle race condition for claims between gateways
zd1211rw: fix NULL-deref at probe
s390/topology: fix typo in early topology code
qed: Always publish VF link from leading hwfn
ARM: dts: Adjust moxart IRQ controller and flags
net/8021q: create device with all possible features in wanted_features
HID: clamp input to logical range if no null state
perf probe: Return errno when not hitting any event
perf probe: Fix concat_probe_trace_events
omapfb: dss: Handle return errors in dss_init_ports()
x86/mce: Init some CPU features early
netem: apply correct delay when rate throttling
net: ethernet: bgmac: Allow MAC address to be specified in DTB
ARM: bcm2835: Enable missing CMA settings for VC4 driver
usb: misc: lvs: fix race condition in disconnect handling
ath10k: fix fetching channel during potential radar detection
ath10k: disallow DFS simulation if DFS channel is not enabled
drm: Defer disabling the vblank IRQ until the next interrupt (for instant-off)
drivers: net: xgene: Fix Rx checksum validation logic
drivers: net: xgene: Fix wrong logical operation
drivers: net: phy: xgene: Fix mdio write
drivers: net: xgene: Fix hardware checksum setting
ARM: brcmstb: Enable ZONE_DMA for non 64-bit capable peripherals
perf tools: Make perf_event__synthesize_mmap_events() scale
i40e: fix ethtool to get EEPROM data from X722 interface
i40e: Acquire NVM lock before reads on all devices
eventpoll.h: fix epoll event masks
x86/mce: Handle broadcasted MCE gracefully with kexec
perf sort: Fix segfault with basic block 'cycles' sort dimension
x86/mm: Make mmap(MAP_32BIT) work correctly
selinux: check for address length in selinux_socket_bind()
PCI/MSI: Stop disabling MSI/MSI-X in pci_device_shutdown()
drm/sun4i: Fix TCON clock and regmap initialization sequence
ath10k: fix a warning during channel switch with multiple vaps
drm/sun4i: Set drm_crtc.port to the underlying TCON's output port node
drm/sun4i: Fix up error path cleanup for master bind function
arm64: dts: r8a7796: Remove unit-address and reg from integrated cache
ARM: dts: r8a7794: Remove unit-address and reg from integrated cache
ARM: dts: r8a7793: Remove unit-address and reg from integrated cache
ARM: dts: r8a7792: Remove unit-address and reg from integrated cache
ARM: dts: r8a7791: Remove unit-address and reg from integrated cache
drm: qxl: Don't alloc fbdev if emulation is not supported
HID: reject input outside logical range only if null state is set
staging: wilc1000: add check for kmalloc allocation failure.
staging: speakup: Replace BUG_ON() with WARN_ON().
perf stat: Issue a HW watchdog disable hint
Input: tsc2007 - check for presence and power down tsc2007 during probe
blkcg: fix double free of new_blkg in blkcg_init_queue
staging: android: ashmem: Fix possible deadlock in ashmem_ioctl
Conflicts:
drivers/net/wireless/ath/wil6210/main.c
drivers/usb/dwc3/core.h
Change-Id: I2d77962cfc3dbc8b051ba51bf10b577d327ffaa9
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
* refs/heads/tmp-b324a70:
Linux 4.9.86
MIPS: Implement __multi3 for GCC7 MIPS64r6 builds
KVM: arm/arm64: Fix check for hugepage size when allocating at Stage 2
net: gianfar_ptp: move set_fipers() to spinlock protecting area
sctp: make use of pre-calculated len
xen/gntdev: Fix partial gntdev_mmap() cleanup
xen/gntdev: Fix off-by-one error when unmapping with holes
SolutionEngine771x: fix Ether platform data
mdio-sun4i: Fix a memory leak
xen-netfront: enable device after manual module load
bnxt_en: Fix the 'Invalid VF' id check in bnxt_vf_ndo_prep routine.
can: flex_can: Correct the checking for frame length in flexcan_start_xmit()
mac80211: mesh: drop frames appearing to be from us
nl80211: Check for the required netlink attribute presence
i40e/i40evf: Account for frags split over multiple descriptors in check linearize
uapi libc compat: add fallback for unsupported libcs
drm/ttm: check the return value of kzalloc
NET: usb: qmi_wwan: add support for YUGA CLM920-NC5 PID 0x9625
e1000: fix disabling already-disabled warning
macvlan: Fix one possible double free
xfs: quota: check result of register_shrinker()
xfs: quota: fix missed destroy of qi_tree_lock
IB/ipoib: Fix race condition in neigh creation
IB/mlx4: Fix mlx4_ib_alloc_mr error flow
s390/dasd: fix wrongly assigned configuration data
genirq: Guard handle_bad_irq log messages
IB/mlx5: Fix mlx5_ib_alloc_mr error flow
led: core: Fix brightness setting when setting delay_off=0
bnx2x: Improve reliability in case of nested PCI errors
tg3: Enable PHY reset in MTU change path for 5720
tg3: Add workaround to restrict 5762 MRRS to 2048
tipc: fix tipc_mon_delete() oops in tipc_enable_bearer() error path
tipc: error path leak fixes in tipc_enable_bearer()
lib/mpi: Fix umul_ppmm() for MIPS64r6
ARM: dts: ls1021a: fix incorrect clock references
scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error
net: stmmac: Fix TX timestamp calculation
ip6_tunnel: get the min mtu properly in ip6_tnl_xmit
net: arc_emac: fix arc_emac_rx() error paths
net: mediatek: setup proper state for disabled GMAC on the default
ASoC: nau8825: fix issue that pop noise when start capture
spi: atmel: fixed spin_lock usage inside atmel_spi_remove
mac80211_hwsim: Fix a possible sleep-in-atomic bug in hwsim_get_radio_nl
drm/nouveau/pci: do a msi rearm on init
net: phy: xgene: disable clk on error paths
sget(): handle failures of register_shrinker()
x86/asm: Allow again using asm.h when building for the 'bpf' clang target
ARM: 8731/1: Fix csum_partial_copy_from_user() stack mismatch
ipv6: icmp6: Allow icmp messages to be looped back
mtd: nand: brcmnand: Zero bitflip is not an error
mtd: nand: gpmi: Fix failure when a erased page has a bitflip at BBM
net: usb: qmi_wwan: add Telit ME910 PID 0x1101 support
nvme: check hw sectors before setting chunk sectors
dmaengine: fsl-edma: disable clks on all error paths
f2fs: fix a bug caused by NULL extent tree
i2c: designware: must wait for enable
hrtimer: Ensure POSIX compliance (relative CLOCK_REALTIME hrtimers)
ANDROID: kbuild: change LTO into a choice
ANDROID: arm64: crypto: fix AES CE when built as a module
ANDROID: staging: lustre: fix filler function type
ANDROID: fs: logfs: fix filler function type
ANDROID: fs: gfs2: fix filler function type
ANDROID: fs: exofs: fix filler function type
ANDROID: fs: afs: fix filler function type
ANDROID: keychord: Check for write data size
media-device: fix ioctl function types
drivers/perf: arm_pmu: fix function type mismatch
dummycon: fix function types
fs: nfs: fix filler function type
mm: fix filler function type mismatch
mm: fix drain_local_pages function type
BACKPORT: vfs: pass type instead of fn to do_{loop,iter}_readv_writev()
arch/arm64/crypto: fix CFI in AES CE
arch/arm64/crypto: fix CFI in SHA CE
arm64: disable CFI for cpu_replace_ttbr1
v4l2-ioctl: fix function types for IOCTL_INFO_STD
UPSTREAM: module: Do not paper over type mismatches in module_param_call()
BACKPORT: treewide: Fix function prototypes for module_param_call()
UPSTREAM: module: Prepare to convert all module_param_call() prototypes
bpf: fix function type for __bpf_prog_run
kallsyms: strip the .cfi postfix from symbols with CONFIG_CFI_CLANG
add support for clang Control Flow Integrity (CFI)
HACK: init: ensure initcall ordering with LTO
xen/efi: don't use -fshort-wchar
drivers/misc: disable LTO for lkdtm_rodata.o
arm64: vdso: disable LTO
FROMLIST: BACKPORT: arm64: select ARCH_SUPPORTS_LTO_CLANG
FROMLIST: BACKPORT: arm64: disable RANDOMIZE_MODULE_REGION_FULL with LTO_CLANG
FROMLIST: arch/arm64/crypto: disable LTO for aes-ce-cipher.c
arm64: disable ARM64_ERRATUM_843419 for clang LTO
arm64: pass code model to LLVMgold
FROMLIST: BACKPORT: arm64: make mrs_s and msr_s macros work with LTO
FROMLIST: arm64: kvm: use -fno-jump-tables with clang
FROMLIST: efi/libstub: disable LTO
FROMLIST: scripts/mod: disable LTO for empty.c
FROMLIST: BACKPORT: kbuild: fix dynamic ftrace with clang LTO
FROMLIST: BACKPORT: kbuild: add support for clang LTO
FROMLIST: BACKPORT: arm64: add a workaround for GNU gold with ARM64_MODULE_PLTS
FROMLIST: arm64: explicitly pass --no-fix-cortex-a53-843419 to GNU gold
FROMLIST: kbuild: add __ld-ifversion and linker-specific macros
FROMLIST: kbuild: add ld-name macro
FROMLIST: BACKPORT: arm64: keep .altinstructions and .altinstr_replacement
arm64: fix LD_DEAD_CODE_DATA_ELIMINATION
FROMLIST: kbuild: fix LD_DEAD_CODE_DATA_ELIMINATION
FROMLIST: BACKPORT: kbuild: add __cc-ifversion and compiler-specific variants
FROMLIST: kbuild: add clang-version.sh
Revert "binder: add missing binder_unlock()"
Linux 4.9.85
x86/entry/64: Clear extra registers beyond syscall arguments, to reduce speculation attack surface
mm: fail get_vaddr_frames() for filesystem-dax mappings
mm: Fix devm_memremap_pages() collision handling
libnvdimm, dax: fix 1GB-aligned namespaces vs physical misalignment
IB/core: disable memory registration of filesystem-dax vmas
v4l2: disable filesystem-dax mapping support
mm: introduce get_user_pages_longterm
device-dax: implement ->split() to catch invalid munmap attempts
libnvdimm: fix integer overflow static analysis warning
fs/dax.c: fix inefficiency in dax_writeback_mapping_range()
mm: avoid spurious 'bad pmd' warning messages
X.509: fix NULL dereference when restricting key with unsupported_sig
binder: add missing binder_unlock()
drm/amdgpu: add new device to use atpx quirk
drm/amdgpu: Avoid leaking PM domain on driver unbind (v2)
drm/amdgpu: add atpx quirk handling (v2)
drm/amdgpu: Add dpm quirk for Jet PRO (v2)
usb: renesas_usbhs: missed the "running" flag in usb_dmac with rx path
usb: gadget: f_fs: Process all descriptors during bind
Revert "usb: musb: host: don't start next rx urb if current one failed"
usb: ldusb: add PIDs for new CASSY devices supported by this driver
usb: dwc3: gadget: Set maxpacket size for ep0 IN
drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA
Add delay-init quirk for Corsair K70 RGB keyboards
arm64: Disable unhandled signal log messages by default
usb: ohci: Proper handling of ed_rm_list to handle race condition between usb_kill_urb() and finish_unlinks()
ohci-hcd: Fix race condition caused by ohci_urb_enqueue() and io_watchdog_func()
PCI/cxgb4: Extend T3 PCI quirk to T4+ devices
irqchip/gic-v3: Use wmb() instead of smb_wmb() in gic_raise_softirq()
x86/oprofile: Fix bogus GCC-8 warning in nmi_setup()
iio: adis_lib: Initialize trigger before requesting interrupt
iio: buffer: check if a buffer has been set up when poll is called
RDMA/uverbs: Protect from command mask overflow
PKCS#7: fix certificate chain verification
X.509: fix BUG_ON() when hash algorithm is unsupported
cfg80211: fix cfg80211_beacon_dup
scsi: ibmvfc: fix misdefined reserved field in ibmvfc_fcp_rsp_info
xtensa: fix high memory/reserved memory collision
netfilter: drop outermost socket lock in getsockopt()
ANDROID: sdcardfs: Set num in extension_details during make_item
Conflicts:
Makefile
arch/arm64/include/asm/arch_gicv3.h
arch/arm64/kernel/module.lds
drivers/usb/gadget/function/f_fs.c
scripts/link-vmlinux.sh
Change in module_param_call() definition requires alignment in:
drivers/hwtracing/coresight/coresight-event.c
drivers/media/radio/radio-iris-transport.c
drivers/power/reset/msm-poweroff.c
drivers/soc/qcom/wcnss/wcnss_wlan.c
drivers/video/fbdev/msm/mdss_dsi_status.c
Change-Id: I2fa32c39bd4ba8a132f8f8abc8132a2ceb32907a
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Merge 4.9.89 into android-4.9
Changes in 4.9.89
blkcg: fix double free of new_blkg in blkcg_init_queue
Input: tsc2007 - check for presence and power down tsc2007 during probe
perf stat: Issue a HW watchdog disable hint
staging: speakup: Replace BUG_ON() with WARN_ON().
staging: wilc1000: add check for kmalloc allocation failure.
HID: reject input outside logical range only if null state is set
drm: qxl: Don't alloc fbdev if emulation is not supported
ARM: dts: r8a7791: Remove unit-address and reg from integrated cache
ARM: dts: r8a7792: Remove unit-address and reg from integrated cache
ARM: dts: r8a7793: Remove unit-address and reg from integrated cache
ARM: dts: r8a7794: Remove unit-address and reg from integrated cache
arm64: dts: r8a7796: Remove unit-address and reg from integrated cache
drm/sun4i: Fix up error path cleanup for master bind function
drm/sun4i: Set drm_crtc.port to the underlying TCON's output port node
ath10k: fix a warning during channel switch with multiple vaps
drm/sun4i: Fix TCON clock and regmap initialization sequence
PCI/MSI: Stop disabling MSI/MSI-X in pci_device_shutdown()
selinux: check for address length in selinux_socket_bind()
x86/mm: Make mmap(MAP_32BIT) work correctly
perf sort: Fix segfault with basic block 'cycles' sort dimension
x86/mce: Handle broadcasted MCE gracefully with kexec
eventpoll.h: fix epoll event masks
i40e: Acquire NVM lock before reads on all devices
i40e: fix ethtool to get EEPROM data from X722 interface
perf tools: Make perf_event__synthesize_mmap_events() scale
ARM: brcmstb: Enable ZONE_DMA for non 64-bit capable peripherals
drivers: net: xgene: Fix hardware checksum setting
drivers: net: phy: xgene: Fix mdio write
drivers: net: xgene: Fix wrong logical operation
drivers: net: xgene: Fix Rx checksum validation logic
drm: Defer disabling the vblank IRQ until the next interrupt (for instant-off)
ath10k: disallow DFS simulation if DFS channel is not enabled
ath10k: fix fetching channel during potential radar detection
usb: misc: lvs: fix race condition in disconnect handling
ARM: bcm2835: Enable missing CMA settings for VC4 driver
net: ethernet: bgmac: Allow MAC address to be specified in DTB
netem: apply correct delay when rate throttling
x86/mce: Init some CPU features early
omapfb: dss: Handle return errors in dss_init_ports()
perf probe: Fix concat_probe_trace_events
perf probe: Return errno when not hitting any event
HID: clamp input to logical range if no null state
net/8021q: create device with all possible features in wanted_features
ARM: dts: Adjust moxart IRQ controller and flags
qed: Always publish VF link from leading hwfn
s390/topology: fix typo in early topology code
zd1211rw: fix NULL-deref at probe
batman-adv: handle race condition for claims between gateways
of: fix of_device_get_modalias returned length when truncating buffers
solo6x10: release vb2 buffers in solo_stop_streaming()
x86/boot/32: Defer resyncing initial_page_table until per-cpu is set up
scsi: fnic: Fix for "Number of Active IOs" in fnicstats becoming negative
scsi: ipr: Fix missed EH wakeup
media: i2c/soc_camera: fix ov6650 sensor getting wrong clock
timers, sched_clock: Update timeout for clock wrap
sysrq: Reset the watchdog timers while displaying high-resolution timers
Input: qt1070 - add OF device ID table
sched: act_csum: don't mangle TCP and UDP GSO packets
PCI: hv: Properly handle PCI bus remove
PCI: hv: Lock PCI bus on device eject
ASoC: rcar: ssi: don't set SSICR.CKDV = 000 with SSIWSR.CONT
spi: omap2-mcspi: poll OMAP2_MCSPI_CHSTAT_RXS for PIO transfer
tcp: sysctl: Fix a race to avoid unexpected 0 window from space
dmaengine: imx-sdma: add 1ms delay to ensure SDMA channel is stopped
usb: dwc3: make sure UX_EXIT_PX is cleared
ARM: dts: bcm2835: add index to the ethernet alias
perf annotate: Fix a bug following symbolic link of a build-id file
perf buildid: Do not assume that readlink() returns a null terminated string
i40e/i40evf: Fix use after free in Rx cleanup path
scsi: be2iscsi: Check tag in beiscsi_mccq_compl_wait
driver: (adm1275) set the m,b and R coefficients correctly for power
bonding: make speed, duplex setting consistent with link state
mm: Fix false-positive VM_BUG_ON() in page_cache_{get,add}_speculative()
ALSA: firewire-lib: add a quirk of packet without valid EOH in CIP format
ARM: dts: r8a7794: Add DU1 clock to device tree
ARM: dts: r8a7794: Correct clock of DU1
ARM: dts: silk: Correct clock of DU1
blk-throttle: make sure expire time isn't too big
regulator: core: Limit propagation of parent voltage count and list
perf trace: Handle unpaired raw_syscalls:sys_exit event
f2fs: relax node version check for victim data in gc
drm/ttm: never add BO that failed to validate to the LRU list
bonding: refine bond_fold_stats() wrap detection
PCI: Apply Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices
powerpc/mm/hugetlb: Filter out hugepage size not supported by page table layout
braille-console: Fix value returned by _braille_console_setup
drm/vmwgfx: Fixes to vmwgfx_fb
vxlan: vxlan dev should inherit lowerdev's gso_max_size
NFC: nfcmrvl: Include unaligned.h instead of access_ok.h
NFC: nfcmrvl: double free on error path
NFC: pn533: change order of free_irq and dev unregistration
ARM: dts: r7s72100: fix ethernet clock parent
ARM: dts: r8a7790: Correct parent of SSI[0-9] clocks
ARM: dts: r8a7791: Correct parent of SSI[0-9] clocks
ARM: dts: r8a7793: Correct parent of SSI[0-9] clocks
powerpc: Avoid taking a data miss on every userspace instruction miss
net: hns: Correct HNS RSS key set function
net/faraday: Add missing include of of.h
qed: Fix TM block ILT allocation
rtmutex: Fix PI chain order integrity
printk: Correctly handle preemption in console_unlock()
drm: rcar-du: Handle event when disabling CRTCs
ARM: dts: koelsch: Correct clock frequency of X2 DU clock input
reiserfs: Make cancel_old_flush() reliable
ASoC: rt5677: Add OF device ID table
IB/hfi1: Check for QSFP presence before attempting reads
ALSA: firewire-digi00x: add support for console models of Digi00x series
ALSA: firewire-digi00x: handle all MIDI messages on streaming packets
fm10k: correctly check if interface is removed
EDAC, altera: Fix peripheral warnings for Cyclone5
scsi: ses: don't get power status of SES device slot on probe
qed: Correct MSI-x for storage
apparmor: Make path_max parameter readonly
iommu/iova: Fix underflow bug in __alloc_and_insert_iova_range
kvm/svm: Setup MCG_CAP on AMD properly
kvm: nVMX: Disallow userspace-injected exceptions in guest mode
video: ARM CLCD: fix dma allocation size
drm/radeon: Fail fb creation from imported dma-bufs.
drm/amdgpu: Fail fb creation from imported dma-bufs. (v2)
drm/rockchip: vop: Enable pm domain before vop_initial
i40e: only register client on iWarp-capable devices
coresight: Fixes coresight DT parse to get correct output port ID.
lkdtm: turn off kcov for lkdtm_rodata_do_nothing:
tty: amba-pl011: Fix spurious TX interrupts
serial: imx: setup DCEDTE early and ensure DCD and RI irqs to be off
MIPS: BPF: Quit clobbering callee saved registers in JIT code.
MIPS: BPF: Fix multiple problems in JIT skb access helpers.
MIPS: r2-on-r6-emu: Fix BLEZL and BGTZL identification
MIPS: r2-on-r6-emu: Clear BLTZALL and BGEZALL debugfs counters
v4l: vsp1: Prevent multiple streamon race commencing pipeline early
v4l: vsp1: Register pipe with output WPF
regulator: isl9305: fix array size
md/raid6: Fix anomily when recovering a single device in RAID6.
md.c:didn't unlock the mddev before return EINVAL in array_size_store
powerpc/nohash: Fix use of mmu_has_feature() in setup_initial_memory_limit()
usb: dwc2: Make sure we disconnect the gadget state
usb: gadget: dummy_hcd: Fix wrong power status bit clear/reset in dummy_hub_control()
perf evsel: Return exact sub event which failed with EPERM for wildcards
iwlwifi: mvm: fix RX SKB header size and align it properly
drivers/perf: arm_pmu: handle no platform_device
perf inject: Copy events when reordering events in pipe mode
net: fec: add phy-reset-gpios PROBE_DEFER check
perf session: Don't rely on evlist in pipe mode
vfio/powerpc/spapr_tce: Enforce IOMMU type compatibility check
vfio/spapr_tce: Check kzalloc() return when preregistering memory
scsi: sg: check for valid direction before starting the request
scsi: sg: close race condition in sg_remove_sfp_usercontext()
ALSA: hda: Add Geminilake id to SKL_PLUS
kprobes/x86: Fix kprobe-booster not to boost far call instructions
kprobes/x86: Set kprobes pages read-only
pwm: tegra: Increase precision in PWM rate calculation
clk: qcom: msm8996: Fix the vfe1 powerdomain name
Bluetooth: Avoid bt_accept_unlink() double unlinking
Bluetooth: 6lowpan: fix delay work init in add_peer_chan()
mac80211_hwsim: use per-interface power level
ath10k: fix compile time sanity check for CE4 buffer size
wil6210: fix protection against connections during reset
wil6210: fix memory access violation in wil_memcpy_from/toio_32
perf stat: Fix bug in handling events in error state
mwifiex: Fix invalid port issue
drm/edid: set ELD connector type in drm_edid_to_eld()
video/hdmi: Allow "empty" HDMI infoframes
HID: elo: clear BTN_LEFT mapping
iwlwifi: mvm: rs: don't override the rate history in the search cycle
clk: meson: gxbb: fix wrong clock for SARADC/SANA
ARM: dts: exynos: Correct Trats2 panel reset line
sched: Stop switched_to_rt() from sending IPIs to offline CPUs
sched: Stop resched_cpu() from sending IPIs to offline CPUs
test_firmware: fix setting old custom fw path back on exit
net: ieee802154: adf7242: Fix bug if defined DEBUG
net: xfrm: allow clearing socket xfrm policies.
mtd: nand: fix interpretation of NAND_CMD_NONE in nand_command[_lp]()
net: thunderx: Set max queue count taking XDP_TX into account
ARM: dts: am335x-pepper: Fix the audio CODEC's reset pin
ARM: dts: omap3-n900: Fix the audio CODEC's reset pin
mtd: nand: ifc: update bufnum mask for ver >= 2.0.0
userns: Don't fail follow_automount based on s_user_ns
leds: pm8058: Silence pointer to integer size warning
power: supply: ab8500_charger: Fix an error handling path
power: supply: ab8500_charger: Bail out in case of error in 'ab8500_charger_init_hw_registers()'
ath10k: update tdls teardown state to target
scsi: ses: don't ask for diagnostic pages repeatedly during probe
pwm: stmpe: Fix wrong register offset for hwpwm=2 case
clk: qcom: msm8916: fix mnd_width for codec_digcodec
mwifiex: cfg80211: do not change virtual interface during scan processing
ath10k: fix invalid STS_CAP_OFFSET_MASK
tools/usbip: fixes build with musl libc toolchain
spi: sun6i: disable/unprepare clocks on remove
bnxt_en: Don't print "Link speed -1 no longer supported" messages.
scsi: core: scsi_get_device_flags_keyed(): Always return device flags
scsi: devinfo: apply to HP XP the same flags as Hitachi VSP
scsi: dh: add new rdac devices
media: vsp1: Prevent suspending and resuming DRM pipelines
media: cpia2: Fix a couple off by one bugs
veth: set peer GSO values
drm/amdkfd: Fix memory leaks in kfd topology
powerpc/modules: Don't try to restore r2 after a sibling call
agp/intel: Flush all chipset writes after updating the GGTT
mac80211_hwsim: enforce PS_MANUAL_POLL to be set after PS_ENABLED
mac80211: remove BUG() when interface type is invalid
ASoC: nuc900: Fix a loop timeout test
ipvlan: add L2 check for packets arriving via virtual devices
rcutorture/configinit: Fix build directory error message
locking/locktorture: Fix num reader/writer corner cases
ima: relax requiring a file signature for new files with zero length
net: hns: Some checkpatch.pl script & warning fixes
x86/boot/32: Fix UP boot on Quark and possibly other platforms
x86/cpufeatures: Add Intel PCONFIG cpufeature
selftests/x86/entry_from_vm86: Exit with 1 if we fail
selftests/x86: Add tests for User-Mode Instruction Prevention
selftests/x86: Add tests for the STR and SLDT instructions
selftests/x86/entry_from_vm86: Add test cases for POPF
x86/vm86/32: Fix POPF emulation
x86/speculation, objtool: Annotate indirect calls/jumps for objtool on 32-bit kernels
x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist
x86/mm: Fix vmalloc_fault to use pXd_large
parisc: Handle case where flush_cache_range is called with no context
ALSA: pcm: Fix UAF in snd_pcm_oss_get_formats()
ALSA: hda - Revert power_save option default value
ALSA: seq: Fix possible UAF in snd_seq_check_queue()
ALSA: seq: Clear client entry before deleting else at closing
drm/amdgpu: fix prime teardown order
drm/amdgpu/dce: Don't turn off DP sink when disconnected
fs: Teach path_connected to handle nfs filesystems with multiple roots.
lock_parent() needs to recheck if dentry got __dentry_kill'ed under it
fs/aio: Add explicit RCU grace period when freeing kioctx
fs/aio: Use RCU accessors for kioctx_table->table[]
irqchip/gic-v3-its: Ensure nr_ites >= nr_lpis
scsi: sg: fix SG_DXFER_FROM_DEV transfers
scsi: sg: fix static checker warning in sg_is_valid_dxfer
scsi: sg: only check for dxfer_len greater than 256M
btrfs: alloc_chunk: fix DUP stripe size handling
btrfs: Fix use-after-free when cleaning up fs_devs with a single stale device
scsi: qla2xxx: Fix extraneous ref on sp's after adapter break
USB: gadget: udc: Add missing platform_device_put() on error in bdc_pci_probe()
usb: dwc3: Fix GDBGFIFOSPACE_TYPE values
usb: gadget: bdc: 64-bit pointer capability check
Linux 4.9.89
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 7654137071fa706e5c91f4f27bc2a5cd7e435a9b ]
In armpmu_dispatch_irq() we look at arm_pmu::plat_device to acquire
platdata, so that we can defer to platform-specific IRQ handling,
required on some 32-bit parts. With the advent of ACPI we won't always
have a platform_device, and so we must avoid trying to dereference
fields from it.
This patch fixes up armpmu_dispatch_irq() to avoid doing so, introducing
a new armpmu_get_platdata() helper.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mark Rutlandauthored and Greg Kroah-Hartmancommited 2018-03-22 09:17:51 +01:00
* refs/heads/tmp-a9d0273:
Linux 4.9.84
crypto: s5p-sss - Fix kernel Oops in AES-ECB mode
KVM: nVMX: invvpid handling improvements
KVM: VMX: clean up declaration of VPID/EPT invalidation types
KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously
x86/microcode/AMD: Change load_microcode_amd()'s param to bool to fix preemptibility bug
usb: phy: msm add regulator dependency
arm64: fix warning about swapper_pg_dir overflow
idle: i7300: add PCI dependency
spi: bcm-qspi: shut up warning about cfi header inclusion
binfmt_elf: compat: avoid unused function warning
arm64: sunxi: always enable reset controller
drm/i915: hide unused intel_panel_set_backlight function
kasan: rework Kconfig settings
clk: meson: gxbb: fix build error without RESET_CONTROLLER
ISDN: eicon: reduce stack size of sig_ind function
tw5864: use dev_warn instead of WARN to shut up warning
em28xx: only use mt9v011 if camera support is enabled
go7007: add MEDIA_CAMERA_SUPPORT dependency
tc358743: fix register i2c_rd/wr functions
shmem: fix compilation warnings on unused functions
KVM: add X86_LOCAL_APIC dependency
Input: tca8418_keypad - hide gcc-4.9 -Wmaybe-uninitialized warning
drm/nouveau: hide gcc-4.9 -Wmaybe-uninitialized
rbd: silence bogus -Wmaybe-uninitialized warning
drm: exynos: mark pm functions as __maybe_unused
security/keys: BIG_KEY requires CONFIG_CRYPTO
cw1200: fix bogus maybe-uninitialized warning
reiserfs: avoid a -Wmaybe-uninitialized warning
ALSA: hda/ca0132 - fix possible NULL pointer use
arm64: Kconfig: select COMPAT_BINFMT_ELF only when BINFMT_ELF is set
scsi: advansys: fix uninitialized data access
x86/vm86: Fix unused variable warning if THP is disabled
x86/platform: Add PCI dependency for PUNIT_ATOM_DEBUG
dmaengine: zx: fix build warning
x86: add MULTIUSER dependency for KVM
thermal: fix INTEL_SOC_DTS_IOSF_CORE dependencies
x86/build: Silence the build with "make -s"
tools build: Add tools tree support for 'make -s'
x86/fpu/math-emu: Fix possible uninitialized variable use
arm64: define BUG() instruction without CONFIG_BUG
gpio: xgene: mark PM functions as __maybe_unused
x86/ras/inject: Make it depend on X86_LOCAL_APIC=y
scsi: advansys: fix build warning for PCI=n
video: fbdev: via: remove possibly unused variables
perf: xgene: Include module.h
PCI: Change pci_host_common_probe() visibility
usb: musb: fix compilation warning on unused function
platform/x86: intel_mid_thermal: Fix suspend handlers unused warning
gpio: intel-mid: Fix build warning when !CONFIG_PM
PCI: vmd: Fix suspend handlers defined-but-not-used warning
perf/x86: Shut up false-positive -Wmaybe-uninitialized warning
vmxnet3: prevent building with 64K pages
clk: sunxi-ng: fix build error without CONFIG_RESET_CONTROLLER
shmem: avoid maybe-uninitialized warning
drm/i915: fix intel_backlight_device_register declaration
crypto: talitos - fix Kernel Oops on hashing an empty file
powerpc/64s: Improve RFI L1-D cache flush fallback
powerpc/64s: Simple RFI macro conversions
powerpc/64s: Fix conversion of slb_miss_common to use RFI_TO_USER/KERNEL
hippi: Fix a Fix a possible sleep-in-atomic bug in rr_close
xen: XEN_ACPI_PROCESSOR is Dom0-only
platform/x86: dell-laptop: Fix keyboard max lighting for Dell Latitude E6410
x86/mm/kmmio: Fix mmiotrace for page unaligned addresses
mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep
usb: dwc3: of-simple: fix missing clk_disable_unprepare
usb: dwc3: gadget: Wait longer for controller to end command processing
dmaengine: jz4740: disable/unprepare clk if probe fails
drm/armada: fix leak of crtc structure
xfrm: Fix stack-out-of-bounds with misconfigured transport mode policies.
spi: sun4i: disable clocks in the remove function
ASoC: rockchip: disable clock on error
clk: fix a panic error caused by accessing NULL pointer
dmaengine: at_hdmac: fix potential NULL pointer dereference in atc_prep_dma_interleaved
dmaengine: ioat: Fix error handling path
gianfar: Disable EEE autoneg by default
509: fix printing uninitialized stack memory when OID is empty
net: ethernet: arc: fix error handling in emac_rockchip_probe
brcmfmac: Avoid build error with make W=1
btrfs: Fix possible off-by-one in btrfs_search_path_in_tree
net_sched: red: Avoid illegal values
net_sched: red: Avoid devision by zero
gianfar: fix a flooded alignment reports because of padding issue.
ARM: dts: Fix elm interrupt compiler warning
s390/dasd: prevent prefix I/O error
powerpc/perf: Fix oops when grouping different pmu events
m68k: add missing SOFTIRQENTRY_TEXT linker section
ipvlan: Add the skb->mark as flow4's member to lookup route
scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
sctp: only update outstanding_bytes for transmitted queue when doing prsctp_prune
RDMA/cma: Make sure that PSN is not over max allowed
i40iw: Correct ARP index mask
pinctrl: sunxi: Fix A64 UART mux value
pinctrl: sunxi: Fix A80 interrupt pin bank
media: s5k6aa: describe some function parameters
perf bench numa: Fixup discontiguous/sparse numa nodes
perf top: Fix window dimensions change handling
ARM: dts: am437x-cm-t43: Correct the dmas property of spi0
ARM: dts: am4372: Correct the interrupts_properties of McASP
ARM: dts: logicpd-somlv: Fix wl127x pinmux
ARM: dts: logicpd-som-lv: Fix gpmc addresses for NAND and enet
ARM: dts: Fix omap4 hang with GPS connected to USB by using wakeupgen
ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function
ARM: OMAP2+: Fix SRAM virt to phys translation for save_secure_ram_context
usb: build drivers/usb/common/ when USB_SUPPORT is set
usbip: keep usbip_device sockfd state in sync with tcp_socket
staging: iio: ad5933: switch buffer mode to software
staging: iio: adc: ad7192: fix external frequency setting
binder: check for binder_thread allocation failure in binder_poll()
staging: android: ashmem: Fix a race condition in pin ioctls
dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock
arm64: dts: add #cooling-cells to CPU nodes
ARM: 8743/1: bL_switcher: add MODULE_LICENSE tag
video: fbdev/mmp: add MODULE_LICENSE
ASoC: ux500: add MODULE_LICENSE tag
crypto: hash - prevent using keyed hashes without setting key
crypto: hash - annotate algorithms taking optional key
net: avoid skb_warn_bad_offload on IS_ERR
rds: tcp: atomically purge entries from rds_tcp_conn_list during netns delete
netfilter: xt_RATEEST: acquire xt_rateest_mutex for hash insert
netfilter: xt_cgroup: initialize info->priv in cgroup_mt_check_v1()
netfilter: on sockopt() acquire sock lock only in the required scope
netfilter: ipt_CLUSTERIP: fix out-of-bounds accesses in clusterip_tg_check()
netfilter: x_tables: avoid out-of-bounds reads in xt_request_find_{match|target}
netfilter: x_tables: fix int overflow in xt_alloc_table_info()
kcov: detect double association with a single task
KVM: x86: fix escape of guest dr6 to the host
blk_rq_map_user_iov: fix error override
staging: android: ion: Switch from WARN to pr_warn
staging: android: ion: Add __GFP_NOWARN for system contig heap
crypto: x86/twofish-3way - Fix %rbp usage
selinux: skip bounded transition processing if the policy isn't loaded
selinux: ensure the context is NUL terminated in security_context_to_sid_core()
Provide a function to create a NUL-terminated string from unterminated data
ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE
drm: Require __GFP_NOFAIL for the legacy drm_modeset_lock_all
blktrace: fix unlocked registration of tracepoints
sctp: set frag_point in sctp_setsockopt_maxseg correctly
xfrm: check id proto in validate_tmpl()
xfrm: Fix stack-out-of-bounds read on socket policy lookup.
mm,vmscan: Make unregister_shrinker() no-op if register_shrinker() failed.
xfrm: skip policies marked as dead while rehashing
cfg80211: check dev_set_name() return value
kcm: Only allow TCP sockets to be attached to a KCM mux
kcm: Check if sk_user_data already set in kcm_attach
vhost: use mutex_lock_nested() in vhost_dev_lock_vqs()
ANDROID: sdcardfs: Hold i_mutex for i_size_write
UPSTREAM: ANDROID: binder: synchronize_rcu() when using POLLFREE.
BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck64-XTS
BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck128-XTS
BACKPORT, FROMGIT: crypto: arm/speck - add NEON-accelerated implementation of Speck-XTS
FROMGIT: crypto: speck - export common helpers
BACKPORT, FROMGIT: crypto: speck - add support for the Speck block cipher
f2fs: updates on v4.16-rc1
Linux 4.9.83
media: r820t: fix r820t_write_reg for KASAN
ARM: dts: Delete bogus reference to the charlcd
arm: dts: mt2701: Add reset-cells
ARM: dts: s5pv210: add interrupt-parent for ohci
arm64: dts: msm8916: Add missing #phy-cells
ARM: pxa/tosa-bt: add MODULE_LICENSE tag
ARM: dts: exynos: fix RTC interrupt for exynos5410
vfs: don't do RCU lookup of empty pathnames
x86: fix build warnign with 32-bit PAE
x86/cpu: Change type of x86_cache_size variable to unsigned int
x86/spectre: Fix an error message
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
selftests/x86/mpx: Fix incorrect bounds with old _sigfault
x86/speculation: Add <asm/msr-index.h> dependency
nospec: Move array_index_nospec() parameter checking into separate macro
x86/speculation: Fix up array_index_nospec_mask() asm constraint
selftests/x86: Do not rely on "int $0x80" in single_step_syscall.c
selftests/x86: Do not rely on "int $0x80" in test_mremap_vdso.c
selftests/x86/pkeys: Remove unused functions
x86/speculation: Clean up various Spectre related details
X86/nVMX: Properly set spec_ctrl and pred_cmd before merging MSRs
KVM/x86: Reduce retpoline performance impact in slot_handle_level_range(), by always inlining iterator helper methods
x86/speculation: Correct Speculation Control microcode blacklist again
x86/speculation: Update Speculation Control microcode blacklist
compiler-gcc.h: Introduce __optimize function attribute
x86/entry/64/compat: Clear registers for compat syscalls, to reduce speculation attack surface
arm: spear13xx: Fix spics gpio controller's warning
arm: spear13xx: Fix dmas cells
arm: spear600: Add missing interrupt-parent of rtc
ARM: dts: nomadik: add interrupt-parent for clcd
ARM: dts: STi: Add gpio polarity for "hdmi,hpd-gpio" property
ARM: lpc3250: fix uda1380 gpio numbers
arm64: dts: msm8916: Correct ipc references for smsm
s390: fix handling of -1 in set{,fs}[gu]id16 syscalls
ocfs2: try a blocking lock before return AOP_TRUNCATED_PAGE
PM / devfreq: Propagate error from devfreq_add_device()
cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
RDMA/rxe: Fix a race condition related to the QP error state
kselftest: fix OOM in memory compaction test
IB/mlx4: Fix incorrectly releasing steerable UD QPs when have only ETH ports
IB/qib: Fix comparison error with qperf compare/swap test
powerpc: fix build errors in stable tree
dm: correctly handle chained bios in dec_pending()
usb: Move USB_UHCI_BIG_ENDIAN_* out of USB_SUPPORT
mvpp2: fix multicast address filter
ALSA: seq: Fix racy pool initializations
ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204
ALSA: hda/realtek: PCI quirk for Fujitsu U7x7
ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform
ALSA: usb-audio: Fix UAC2 get_ctl request with a RANGE attribute
ALSA: hda - Fix headset mic detection problem for two Dell machines
mtd: nand: vf610: set correct ooblayout
9p/trans_virtio: discard zero-length reply
Btrfs: fix unexpected -EEXIST when creating new inode
Btrfs: fix btrfs_evict_inode to handle abnormal inodes correctly
Btrfs: fix extent state leak from tree log
Btrfs: fix crash due to not cleaning up tree log block's dirty bits
Btrfs: fix deadlock in run_delalloc_nocow
target/iscsi: avoid NULL dereference in CHAP auth error path
rtlwifi: rtl8821ae: Fix connection lost problem correctly
console/dummy: leave .con_font_get set to NULL
video: fbdev: atmel_lcdfb: fix display-timings lookup
PCI: keystone: Fix interrupt-controller-node lookup
MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIAN
mm: Fix memory size alignment in devm_memremap_pages_release()
mm: hide a #warning for COMPILE_TEST
ext4: correct documentation for grpid mount option
ext4: save error to disk in __ext4_grp_locked_error()
ext4: fix a race in the ext4 shutdown path
jbd2: fix sphinx kernel-doc build warnings
mbcache: initialize entry->e_referenced in mb_cache_entry_create()
rtc-opal: Fix handling of firmware error codes, prevent busy loops
drm/radeon: adjust tested variable
drm/radeon: Add dpm quirk for Jet PRO (v2)
scsi: smartpqi: allow static build ("built-in")
BACKPORT: tee: shm: Potential NULL dereference calling tee_shm_register()
BACKPORT: tee: shm: don't put_page on null shm->pages
BACKPORT: tee: shm: make function __tee_shm_alloc static
BACKPORT: tee: optee: check type of registered shared memory
BACKPORT: tee: add start argument to shm_register callback
BACKPORT: tee: optee: fix header dependencies
BACKPORT: tee: shm: inline tee_shm_get_id()
BACKPORT: tee: use reference counting for tee_context
BACKPORT: tee: optee: enable dynamic SHM support
BACKPORT: tee: optee: add optee-specific shared pool implementation
BACKPORT: tee: optee: store OP-TEE capabilities in private data
BACKPORT: tee: optee: add registered buffers handling into RPC calls
BACKPORT: tee: optee: add registered shared parameters handling
BACKPORT: tee: optee: add shared buffer registration functions
BACKPORT: tee: optee: add page list manipulation functions
BACKPORT: tee: optee: Update protocol definitions
BACKPORT: tee: shm: add page accessor functions
BACKPORT: tee: shm: add accessors for buffer size and page offset
BACKPORT: tee: add register user memory
BACKPORT: tee: flexible shared memory pool creation
BACKPORT: optee: support asynchronous supplicant requests
BACKPORT: tee: add TEE_IOCTL_PARAM_ATTR_META
BACKPORT: tee: add tee_param_is_memref() for driver use
UPSTREAM: tcp: fix access to sk->sk_state in tcp_poll()
BACKPORT: tcp: fix potential double free issue for fastopen_req
BACKPORT: xfrm: Fix return value check of copy_sec_ctx.
time: Fix ktime_get_raw() incorrect base accumulation
FROMLIST: coresight: ETM: Add support for ARM Cortex-A73
FROMLIST: coresight: tmc: implementing TMC-ETR AUX space API
UPSTREAM: coresight: etm_perf: Fix using uninitialised work
UPSTREAM: coresight: fix kernel panic caused by invalid CPU
UPSTREAM: coresight: Fix disabling of CoreSight TPIU
UPSTREAM: coresight: perf: Add a missing call to etm_free_aux
UPSTREAM: coresight: tmc: Remove duplicate memset
UPSTREAM: coresight: tmc: Get rid of mode parameter for helper routines
UPSTREAM: coresight: tmc: Cleanup operation mode handling
UPSTREAM: coresight: reset "enable_sink" flag when need be
sched/fair: prevent possible infinite loop in sched_group_energy
ANDROID: qtaguid: Fix the UAF probelm with tag_ref_tree
UPSTREAM: ANDROID: binder: remove waitqueue when thread exits.
ANDROID: sdcardfs: Protect set_top
ANDROID: fsnotify: Notify lower fs of open
Revert "ANDROID: sdcardfs: notify lower file of opens"
ANDROID: sdcardfs: Use lower getattr times/size
ANDROID: sched: EAS: check energy_aware() before calling select_energy_cpu_brute() in up-migrate path
UPSTREAM: eventpoll.h: add missing epoll event masks
BACKPORT: thermal/drivers/hisi: Add support for hi3660 SoC
BACKPORT: thermal/drivers/hisi: Prepare to add support for other hisi platforms
BACKPORT: thermal/drivers/hisi: Add platform prefix to function name
BACKPORT: thermal/drivers/hisi: Put platform code together
BACKPORT: thermal/drivers/hisi: Use round up step value
BACKPORT: thermal/drivers/hisi: Move the clk setup in the corresponding functions
BACKPORT: thermal/drivers/hisi: Remove mutex_lock in the code
BACKPORT: thermal/drivers/hisi: Remove thermal data back pointer
BACKPORT: thermal/drivers/hisi: Convert long to int
BACKPORT: thermal/drivers/hisi: Rename and remove unused field
BACKPORT: thermal/drivers/hisi: Remove costly sensor inspection
BACKPORT: thermal/drivers/hisi: Fix configuration register setting
BACKPORT: thermal/drivers/hisi: Encapsulate register writes into helpers
BACKPORT: thermal/drivers/hisi: Remove pointless lock
BACKPORT: thermal/drivers/hisi: Remove the multiple sensors support
BACKPORT: thermal: hisilicon: constify thermal_zone_of_device_ops structures
ANDROID: xattr: Pass EOPNOTSUPP to permission2
ANDROID: sdcardfs: Move default_normal to superblock
UPSTREAM: tcp: fix a request socket leak
UPSTREAM: tcp: fix possible deadlock in TCP stack vs BPF filter
UPSTREAM: tcp: Add a tcp_filter hook before handle ack packet
FROMLIST: arm64: kpti: Fix the interaction between ASID switching and software PAN
FROMLIST: arm64: Move post_ttbr_update_workaround to C code
fscrypt: updates on 4.15-rc4
ANDROID: uid_sys_stats: fix the comment
BACKPORT: optee: fix invalid of_node_put() in optee_driver_init()
BACKPORT: tee: optee: sync with new naming of interrupts
BACKPORT: tee: indicate privileged dev in gen_caps
BACKPORT: tee: optee: interruptible RPC sleep
BACKPORT: tee: optee: add const to tee_driver_ops and tee_desc structures
BACKPORT: tee: tee_shm: Constify dma_buf_ops structures.
BACKPORT: tee: add forward declaration for struct device
BACKPORT: tee: optee: fix uninitialized symbol 'parg'
BACKPORT: tee.txt: standardize document format
BACKPORT: tee: add ARM_SMCCC dependency
clocksource: arch_timer: make virtual counter access configurable
arm64: issue isb when trapping CNTVCT_EL0 access
BACKPORT: arm64: Add CNTFRQ_EL0 trap handler
BACKPORT: arm64: Add CNTVCT_EL0 trap handler
ANDROID: sdcardfs: Fix missing break on default_normal
ANDROID: arm64: kaslr: fixup Falkor workaround for 4.9
ANDROID: usb: f_fs: Prevent gadget unbind if it is already unbound
arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry
arm64: use RET instruction for exiting the trampoline
UPSTREAM: arm64: kaslr: Put kernel vectors address in separate data page
UPSTREAM: arm64: mm: Introduce TTBR_ASID_MASK for getting at the ASID in the TTBR
UPSTREAM: arm64: Kconfig: Add CONFIG_UNMAP_KERNEL_AT_EL0
UPSTREAM: arm64: entry: Add fake CPU feature for unmapping the kernel at EL0
UPSTREAM: arm64: tls: Avoid unconditional zeroing of tpidrro_el0 for native tasks
UPSTREAM: arm64: erratum: Work around Falkor erratum #E1003 in trampoline code
UPSTREAM: arm64: entry: Hook up entry trampoline to exception vectors
UPSTREAM: arm64: entry: Explicitly pass exception level to kernel_ventry macro
UPSTREAM: arm64: mm: Map entry trampoline into trampoline and kernel page tables
UPSTREAM: arm64: entry: Add exception trampoline page for exceptions from EL0
UPSTREAM: arm64: mm: Invalidate both kernel and user ASIDs when performing TLBI
UPSTREAM: arm64: mm: Add arm64_kernel_unmapped_at_el0 helper
UPSTREAM: arm64: mm: Allocate ASIDs in pairs
UPSTREAM: arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN
UPSTREAM: arm64: mm: Rename post_ttbr0_update_workaround
UPSTREAM: arm64: mm: Move ASID from TTBR0 to TTBR1
UPSTREAM: arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN
UPSTREAM: arm64: mm: Use non-global mappings for kernel space
UPSTREAM: arm64: factor out entry stack manipulation
ANDROID: sdcardfs: Add default_normal option
ANDROID: sdcardfs: notify lower file of opens
blkdev: Refactoring block io latency histogram codes
UPSTREAM: netfilter: conntrack: use power efficient workqueue
ANDROID: binder: Remove obsolete proc waitqueue.
UPSTREAM: arm64: setup: introduce kaslr_offset()
UPSTREAM: kcov: fix comparison callback signature
UPSTREAM: kcov: support comparison operands collection
UPSTREAM: kcov: remove pointless current != NULL check
UPSTREAM: kcov: support compat processes
UPSTREAM: kcov: simplify interrupt check
UPSTREAM: kcov: make kcov work properly with KASLR enabled
UPSTREAM: kcov: add more missing includes
BACKPORT: irq: Make the irqentry text section unconditional
UPSTREAM: kasan: make get_wild_bug_type() static
UPSTREAM: kasan: separate report parts by empty lines
UPSTREAM: kasan: improve double-free report format
UPSTREAM: kasan: print page description after stacks
UPSTREAM: kasan: improve slab object description
UPSTREAM: kasan: change report header
UPSTREAM: kasan: simplify address description logic
UPSTREAM: kasan: change allocation and freeing stack traces headers
UPSTREAM: kasan: unify report headers
UPSTREAM: kasan: introduce helper functions for determining bug type
BACKPORT: kasan: report only the first error by default
UPSTREAM: kasan: fix races in quarantine_remove_cache()
UPSTREAM: kasan: resched in quarantine_remove_cache()
UPSTREAM: kasan, sched/headers: Uninline kasan_enable/disable_current()
UPSTREAM: kasan: drain quarantine of memcg slab objects
UPSTREAM: kasan: eliminate long stalls during quarantine reduction
UPSTREAM: kasan: support panic_on_warn
ANDROID: dma-buf/sw_sync: Rename active_list to link
ANDROID: initramfs: call free_initrd() when skipping init
BACKPORT: Documentation: tee subsystem and op-tee driver
BACKPORT: tee: add OP-TEE driver
BACKPORT: tee: generic TEE subsystem
BACKPORT: dt/bindings: add bindings for optee
BACKPORT: schedutil: Reset cached freq if it is not in sync with next_freq
sched: EAS/WALT: Don't take into account of running task's util
sched: EAS/WALT: take into account of waking task's load
sched: EAS: upmigrate misfit current task
sched: avoid pushing tasks to an offline CPU
sched: Extend active balance to accept 'push_task' argument
sched: walt: Correct WALT window size initialization
sched: WALT: account cumulative window demand
sched: EAS/WALT: finish accounting prior to task_tick
sched/fair: prevent meaningless active migration
sched: walt: Leverage existing helper APIs to apply invariance
UPSTREAM: net: xfrm: allow clearing socket xfrm policies.
UPSTREAM: time: Clean up CLOCK_MONOTONIC_RAW time handling
UPSTREAM: arm64: vdso: fix clock_getres for 4GiB-aligned res
f2fs: updates on 4.15-rc1
UPSTREAM: android: binder: fix type mismatch warning
BACKPORT: arm64: Use __pa_symbol for empty_zero_page
UPSTREAM: arm64: Use __pa_symbol for kernel symbols
UPSTREAM: mm: Introduce lm_alias
FROMLIST: binder: fix proc->files use-after-free
BACKPORT: xfrm: Clear sk_dst_cache when applying per-socket policy.
sched: WALT: fix potential overflow
sched: Update task->on_rq when tasks are moving between runqueues
sched: WALT: fix window mis-alignment
sched: EAS: kill incorrect nohz idle cpu kick
sched: EAS: fix incorrect energy delta calculation due to rounding error
sched: EAS/WALT: use cr_avg instead of prev_runnable_sum
sched: WALT: fix broken cumulative runnable average accounting
sched: deadline: WALT: account cumulative runnable avg
ANDROID: binder: clarify deferred thread work.
BACKPORT: net/tcp-fastopen: Add new API support
UPSTREAM: net: Remove __sk_dst_reset() in tcp_v6_connect()
UPSTREAM: net/tcp-fastopen: refactor cookie check logic
sched: compute task utilisation with WALT consistently
FROMLIST: arm64: Avoid aligning normal memory pointers in __memcpy_{to,from}io
UPSTREAM: security: bpf: replace include of linux/bpf.h with forward declarations
UPSTREAM: selinux: bpf: Add addtional check for bpf object file receive
UPSTREAM: selinux: bpf: Add selinux check for eBPF syscall operations
BACKPORT: security: bpf: Add LSM hooks for bpf object related syscall
BACKPORT: bpf: Add file mode configuration into bpf maps
cpufreq: Drop schedfreq governor
ANDROID: Revert "arm64: move ELF_ET_DYN_BASE to 4GB / 4MB"
ANDROID: Revert "arm: move ELF_ET_DYN_BASE to 4MB"
sched: EAS: Fix the condition to distinguish energy before/after
sched: EAS: update trg_cpu to backup_cpu if no energy saving for target_cpu
sched/fair: consider task utilization in group_max_util()
sched/fair: consider task utilization in group_norm_util()
sched/fair: enforce EAS mode
sched/fair: ignore backup CPU when not valid
sched/fair: trace energy_diff for non boosted tasks
UPSTREAM: sched/fair: Sync task util before slow-path wakeup
UPSTREAM: sched/core: Add missing update_rq_clock() call in set_user_nice()
UPSTREAM: sched/core: Add missing update_rq_clock() call for task_hot()
UPSTREAM: sched/core: Add missing update_rq_clock() in detach_task_cfs_rq()
UPSTREAM: sched/core: Add missing update_rq_clock() in post_init_entity_util_avg()
UPSTREAM: sched/fair: Fix task group initialization
cpufreq/sched: Consider max cpu capacity when choosing frequencies
cpufreq/sched: Use cpu max freq rather than policy max
sched/fair: remove erroneous RCU_LOCKDEP_WARN from start_cpu()
FROMLIST: ALSA: usx2y: Suppress kernel warning at page allocation failures
FROMLIST: kbuild: clang: fix build failures with sparse check
Revert "Revert "BACKPORT: efi/libstub/arm64: Set -fpie when building the EFI stub""
BACKPORT: efi/libstub: Unify command line param parsing
ANDROID: sched/walt: Fix divide by zero error in cpufreq notifier
ANDROID: binder: show high watermark of alloc->pages.
ANDROID: binder: Add thread->process_todo flag.
ANDROID: sched/fair: Select correct capacity state for energy_diff
ANDROID: cpufreq-dt: Set sane defaults for schedutil rate limits
BACKPORT: cpufreq: schedutil: Use policy-dependent transition delays
Revert "BACKPORT: efi/libstub/arm64: Set -fpie when building the EFI stub"
FROMLIST: android: binder: Fix null ptr dereference in debug msg
FROMLIST: android: binder: Change binder_shrinker to static
UPSTREAM: arm64: compat: Remove leftover variable declaration
ANDROID: HACK: arm64: use -mno-implicit-float instead of -mgeneral-regs-only
ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple
CHROMIUM: arm64: Disable asm-operand-width warning for clang
CHROMIUM: kbuild: clang: Disable the 'duplicate-decl-specifier' warning
BACKPORT: x86/asm: Fix inline asm call constraints for Clang
BACKPORT: efi/libstub/arm64: Set -fpie when building the EFI stub
UPSTREAM: efi/libstub/arm64: Force 'hidden' visibility for section markers
UPSTREAM: efi/libstub/arm64: Use hidden attribute for struct screen_info reference
UPSTREAM: x86/build: Use cc-option to validate stack alignment parameter
UPSTREAM: x86/build: Fix stack alignment for CLang
UPSTREAM: compiler, clang: always inline when CONFIG_OPTIMIZE_INLINING is disabled
UPSTREAM: x86/boot: #undef memcpy() et al in string.c
UPSTREAM: llist: clang: introduce member_address_is_nonnull()
UPSTREAM: crypto: arm64/sha - avoid non-standard inline asm tricks
UPSTREAM: kbuild: clang: Disable 'address-of-packed-member' warning
UPSTREAM: x86/build: Specify stack alignment for clang
UPSTREAM: x86/build: Use __cc-option for boot code compiler options
UPSTREAM: kbuild: Add __cc-option macro
UPSTREAM: x86/mm/kaslr: Use the _ASM_MUL macro for multiplication to work around Clang incompatibility
UPSTREAM: crypto, x86: aesni - fix token pasting for clang
UPSTREAM: x86/kbuild: Use cc-option to enable -falign-{jumps/loops}
UPSTREAM: compiler, clang: properly override 'inline' for clang
UPSTREAM: compiler, clang: suppress warning for unused static inline functions
UPSTREAM: modules: mark __inittest/__exittest as __maybe_unused
UPSTREAM: kbuild: Add support to generate LLVM assembly files
UPSTREAM: kbuild: use -Oz instead of -Os when using clang
UPSTREAM: kbuild, LLVMLinux: Add -Werror to cc-option to support clang
UPSTREAM: kbuild: drop -Wno-unknown-warning-option from clang options
UPSTREAM: kbuild: fix asm-offset generation to work with clang
UPSTREAM: kbuild: consolidate redundant sed script ASM offset generation
UPSTREAM: kbuild: Consolidate header generation from ASM offset information
UPSTREAM: kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS
UPSTREAM: kbuild: Add better clang cross build support
FROMLIST: f2fs: expose some sectors to user in inline data or dentry case
UPSTREAM: sched/fair: Fix usage of find_idlest_group() when the local group is idlest
UPSTREAM: sched/fair: Fix usage of find_idlest_group() when no groups are allowed
UPSTREAM: sched/fair: Fix find_idlest_group() when local group is not allowed
UPSTREAM: sched/fair: Remove unnecessary comparison with -1
UPSTREAM: sched/fair: Move select_task_rq_fair() slow-path into its own function
UPSTREAM: sched/fair: Force balancing on NOHZ balance if local group has capacity
UPSTREAM: f2fs: fix potential panic during fstrim
f2fs: catch up to v4.14-rc1
UPSTREAM: sched: use load_avg for selecting idlest group
UPSTREAM: sched: fix find_idlest_group for fork
ANDROID: binder: fix node sched policy calculation
ANDROID: binder: init desired_prio.sched_policy before use it
BACKPORT: net: xfrm: support setting an output mark.
FROMLIST: tracing: Add support for preempt and irq enable/disable events
FROMLIST: tracing: Prepare to add preempt and irq trace events
Conflicts:
arch/arm64/Kconfig
arch/arm64/include/asm/assembler.h
arch/arm64/include/asm/cpucaps.h
arch/arm64/include/asm/efi.h
arch/arm64/include/asm/memory.h
arch/arm64/include/asm/mmu.h
arch/arm64/include/asm/mmu_context.h
arch/arm64/kernel/cpufeature.c
arch/arm64/kernel/io.c
arch/arm64/kernel/setup.c
arch/arm64/kernel/vdso.c
arch/arm64/mm/context.c
arch/arm64/mm/mmu.c
drivers/Kconfig
drivers/Makefile
drivers/cpufreq/Kconfig
drivers/hwtracing/coresight/coresight-etm4x.c
drivers/hwtracing/coresight/coresight-priv.h
drivers/hwtracing/coresight/coresight-tmc-etr.c
drivers/hwtracing/coresight/coresight.c
drivers/scsi/ufs/ufshcd.h
drivers/staging/android/ion/ion-ioctl.c
drivers/staging/android/ion/ion_system_heap.c
drivers/usb/dwc3/gadget.c
include/linux/sched.h
include/trace/events/sched.h
kernel/kcov.c
kernel/sched/core.c
kernel/sched/cpufreq_sched.c
kernel/sched/cpufreq_schedutil.c
kernel/sched/fair.c
kernel/sched/sched.h
kernel/sched/walt.c
kernel/sched/walt.h
mm/kasan/report.c
security/security.c
security/selinux/hooks.c
Change-Id: I0ec8cbca6cb6384e22fbbe8def8a9d228229dc48
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
commit c0bfc549e96231e0ead4424de6e4933fde819d70 upstream.
I ran into a build error when I disabled CONFIG_ACPI and tried to
compile this driver:
drivers/perf/xgene_pmu.c:1242:1: warning: data definition has no type or storage class
MODULE_DEVICE_TABLE(of, xgene_pmu_of_match);
^
drivers/perf/xgene_pmu.c:1242:1: error: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE' [-Werror=implicit-int]
Include module.h for the MODULE_DEVICE_TABLE macro that's
implicitly included through ACPI.
Tested-by: Tai Nguyen <ttnguyen@apm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stephen Boydauthored and Greg Kroah-Hartmancommited 2018-02-25 11:05:51 +01:00
Perf hardware events are generally tied to a particular CPU.
During the cleanup process perf_remove_from_context()
tries to execute the PMU related cleanup on the CPU that the
event is tied to. But if the CPU is offline, the cleanup is
not completed successfully at the PMU level, but the event
is freed (at the core level).
This fix is to collect the events that are approaching the release
when it's CPU is down. These zombie events are cleaned up when the
CPU is hotplugged on again.
Change-Id: I9ddf8f32cfcec4e0cb1c0910fb68b6db984d7553
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
Currently perf hardware, software and tracepoint events are
deleted when a cpu is hotplugged out. This change restarts
the events after hotplug. In arm_pmu.c most of the code
for handline power collapse is reused for hotplug.
This change supercedes commit 1f0f95c5fe9e ("perf: add hotplug
support so that perf continues after hotplug") and uses the
new hotplug notification method.
Change-Id: Ia9de1c150558125e2da5f2c4354c268ce4b1154a
Signed-off-by: Patrick Fay <pfay@codeaurora.org>
In acpi_get_pmu_hw_inf we pass the address of a local variable to IS_ERR(),
which doesn't make sense, as the pointer must be a real, valid pointer.
This doesn't cause a functional problem, as IS_ERR() will evaluate as
false, but the check is bogus and causes static checkers to complain.
Remove the bogus check.
The bug is reported by Dan Carpenter <dan.carpenter@oracle.com> in [1]
[1] https://www.spinics.net/lists/arm-kernel/msg535957.html
Signed-off-by: Tai Nguyen <ttnguyen@apm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Tai Nguyenauthored and Will Deaconcommited 2016-10-17 15:50:07 +01:00
Driver updates for ARM SoCs, including a couple of newly added drivers:
- The Qualcomm external bus interface 2 (EBI2), used in some of their
mobile phone chips for connecting flash memory, LCD displays or
other peripherals
- Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for the
EFUSE based on that firmware interface.
- Perf support for the AppliedMicro X-Gene performance monitor unit
- Reset driver for STMicroelectronics STM32
- Reset driver for SocioNext UniPhier SoCs
Aside from these, there are minor updates to SoC-specific bus,
clocksource, firmware, pinctrl, reset, rtc and pmic drivers.
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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 Arnd Bergmann:
"Driver updates for ARM SoCs, including a couple of newly added
drivers:
- The Qualcomm external bus interface 2 (EBI2), used in some of their
mobile phone chips for connecting flash memory, LCD displays or
other peripherals
- Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for
the EFUSE based on that firmware interface.
- Perf support for the AppliedMicro X-Gene performance monitor unit
- Reset driver for STMicroelectronics STM32
- Reset driver for SocioNext UniPhier SoCs
Aside from these, there are minor updates to SoC-specific bus,
clocksource, firmware, pinctrl, reset, rtc and pmic drivers"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits)
bus: qcom-ebi2: depend on HAS_IOMEM
pinctrl: mvebu: orion5x: Generalise mv88f5181l support for 88f5181
clk: mvebu: Add clk support for the orion5x SoC mv88f5181
dt-bindings: EXYNOS: Add Exynos5433 PMU compatible
clocksource: exynos_mct: Add the support for ARM64
perf: xgene: Add APM X-Gene SoC Performance Monitoring Unit driver
Documentation: Add documentation for APM X-Gene SoC PMU DTS binding
MAINTAINERS: Add entry for APM X-Gene SoC PMU driver
bus: qcom: add EBI2 driver
bus: qcom: add EBI2 device tree bindings
rtc: rtc-pm8xxx: Add support for pm8018 rtc
nvmem: amlogic: Add Amlogic Meson EFUSE driver
firmware: Amlogic: Add secure monitor driver
soc: qcom: smd: Reset rx tail rather than tx
memory: atmel-sdramc: fix a possible NULL dereference
reset: hi6220: allow to compile test driver on other architectures
reset: zynq: add driver Kconfig option
reset: sunxi: add driver Kconfig option
reset: stm32: add driver Kconfig option
reset: socfpga: add driver Kconfig option
...
Pull CPU hotplug updates from Thomas Gleixner:
"Yet another batch of cpu hotplug core updates and conversions:
- Provide core infrastructure for multi instance drivers so the
drivers do not have to keep custom lists.
- Convert custom lists to the new infrastructure. The block-mq custom
list conversion comes through the block tree and makes the diffstat
tip over to more lines removed than added.
- Handle unbalanced hotplug enable/disable calls more gracefully.
- Remove the obsolete CPU_STARTING/DYING notifier support.
- Convert another batch of notifier users.
The relayfs changes which conflicted with the conversion have been
shipped to me by Andrew.
The remaining lot is targeted for 4.10 so that we finally can remove
the rest of the notifiers"
* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
cpufreq: Fix up conversion to hotplug state machine
blk/mq: Reserve hotplug states for block multiqueue
x86/apic/uv: Convert to hotplug state machine
s390/mm/pfault: Convert to hotplug state machine
mips/loongson/smp: Convert to hotplug state machine
mips/octeon/smp: Convert to hotplug state machine
fault-injection/cpu: Convert to hotplug state machine
padata: Convert to hotplug state machine
cpufreq: Convert to hotplug state machine
ACPI/processor: Convert to hotplug state machine
virtio scsi: Convert to hotplug state machine
oprofile/timer: Convert to hotplug state machine
block/softirq: Convert to hotplug state machine
lib/irq_poll: Convert to hotplug state machine
x86/microcode: Convert to hotplug state machine
sh/SH-X3 SMP: Convert to hotplug state machine
ia64/mca: Convert to hotplug state machine
ARM/OMAP/wakeupgen: Convert to hotplug state machine
ARM/shmobile: Convert to hotplug state machine
arm64/FP/SIMD: Convert to hotplug state machine
...
- Support for execute-only page permissions
- Support for hibernate and DEBUG_PAGEALLOC
- Support for heterogeneous systems with mismatches cache line sizes
- Errata workarounds (A53 843419 update and QorIQ A-008585 timer bug)
- arm64 PMU perf updates, including cpumasks for heterogeneous systems
- Set UTS_MACHINE for building rpm packages
- Yet another head.S tidy-up
- Some cleanups and refactoring, particularly in the NUMA code
- Lots of random, non-critical fixes across the board
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"It's a bit all over the place this time with no "killer feature" to
speak of. Support for mismatched cache line sizes should help people
seeing whacky JIT failures on some SoCs, and the big.LITTLE perf
updates have been a long time coming, but a lot of the changes here
are cleanups.
We stray outside arch/arm64 in a few areas: the arch/arm/ arch_timer
workaround is acked by Russell, the DT/OF bits are acked by Rob, the
arch_timer clocksource changes acked by Marc, CPU hotplug by tglx and
jump_label by Peter (all CC'd).
Summary:
- Support for execute-only page permissions
- Support for hibernate and DEBUG_PAGEALLOC
- Support for heterogeneous systems with mismatches cache line sizes
- Errata workarounds (A53 843419 update and QorIQ A-008585 timer bug)
- arm64 PMU perf updates, including cpumasks for heterogeneous systems
- Set UTS_MACHINE for building rpm packages
- Yet another head.S tidy-up
- Some cleanups and refactoring, particularly in the NUMA code
- Lots of random, non-critical fixes across the board"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (100 commits)
arm64: tlbflush.h: add __tlbi() macro
arm64: Kconfig: remove SMP dependence for NUMA
arm64: Kconfig: select OF/ACPI_NUMA under NUMA config
arm64: fix dump_backtrace/unwind_frame with NULL tsk
arm/arm64: arch_timer: Use archdata to indicate vdso suitability
arm64: arch_timer: Work around QorIQ Erratum A-008585
arm64: arch_timer: Add device tree binding for A-008585 erratum
arm64: Correctly bounds check virt_addr_valid
arm64: migrate exception table users off module.h and onto extable.h
arm64: pmu: Hoist pmu platform device name
arm64: pmu: Probe default hw/cache counters
arm64: pmu: add fallback probe table
MAINTAINERS: Update ARM PMU PROFILING AND DEBUGGING entry
arm64: Improve kprobes test for atomic sequence
arm64/kvm: use alternative auto-nop
arm64: use alternative auto-nop
arm64: alternative: add auto-nop infrastructure
arm64: lse: convert lse alternatives NOP padding to use __nops
arm64: barriers: introduce nops and __nops macros for NOP sequences
arm64: sysreg: replace open-coded mrs_s/msr_s with {read,write}_sysreg_s
...
In preparation for ACPI support, add a pmu_probe_info table to
the arm_pmu_device_probe() call. This table gets used when
probing in the absence of a devicetree node for PMU.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Mark Salterauthored and Will Deaconcommited 2016-09-16 17:11:33 +01:00
This patch adds a driver for the SoC-wide (AKA uncore) PMU hardware
found in APM X-Gene SoCs.
Signed-off-by: Tai Nguyen <ttnguyen@apm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tai Nguyenauthored and Duc Dangcommited 2016-09-15 11:20:55 -07:00
In systems with heterogeneous CPUs, there are multiple logical CPU PMUs,
each of which covers a subset of CPUs in the system. In some cases
userspace needs to know which CPUs a given logical PMU covers, so we'd
like to expose a cpumask under sysfs, similar to what is done for uncore
PMUs.
Unfortunately, prior to commit 00e727bb38 ("perf stat: Balance
opening and reading events"), perf stat only correctly handled a cpumask
holding a single CPU, and only when profiling in system-wide mode. In
other cases, the presence of a cpumask file could cause perf stat to
behave erratically.
Thus, exposing a cpumask file would break older perf binaries in cases
where they would otherwise work.
To avoid this issue while still providing userspace with the information
it needs, this patch exposes a differently-named file (cpus) under
sysfs. New tools can look for this and operate correctly, while older
tools will not be adversely affected by its presence.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Mark Rutlandauthored and Will Deaconcommited 2016-09-09 14:51:51 +01:00
Now that the 32-bit and 64-bit perf backends use the common groups
directly, remove the fallback and no longer allow the groups array to be
overridden.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Mark Rutlandauthored and Will Deaconcommited 2016-09-09 14:51:51 +01:00
In preparation for adding common attribute groups, add an array of
attribute group pointers to arm_pmu, which will be used if the
backend hasn't already set pmu::attr_groups.
Subsequent patches will move backends over to using these, before adding
common fields.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Mark Rutlandauthored and Will Deaconcommited 2016-09-09 14:51:51 +01:00
As declared by the chief penguin, and enforced by the NO_IRQ brigade,
IRQ0 doesn't exist, and is considered as an error (no irq).
Unfortunately, the arm_pmu driver still considers it as valid in
a large number of cases. Let's fix this.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Marc Zyngierauthored and Will Deaconcommited 2016-09-06 18:26:33 +01:00
Patch 7f1d642fbb ("drivers/perf: arm-pmu: Fix handling of SPI lacking
interrupt-affinity property") unintended also fixes perf_event support
for bcm2835 which doesn't have PMU interrupts. Unfortunately this change
introduce a NULL pointer dereference on bcm2835, because irq_is_percpu
always expected to be called with a valid IRQ. So fix this regression
by validating the IRQ before.
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: 7f1d642fbb ("drivers/perf: arm-pmu: Fix handling of SPI lacking "interrupt-affinity" property")
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Stefan Wahrenauthored and Catalin Marinascommited 2016-09-02 17:17:52 +01:00
In case of a IRQ type mismatch in of_pmu_irq_cfg() the
device node for interrupt affinity isn't freed. So fix this
issue by calling of_node_put().
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: fa8ad7889d ("arm: perf: factor arm_pmu core out to drivers")
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Stefan Wahrenauthored and Catalin Marinascommited 2016-09-02 17:17:52 +01:00
Patch 19a469a587 ("drivers/perf: arm-pmu: Handle per-interrupt
affinity mask") added support for partitionned PPI setups, but
inadvertently broke setups using SPIs without the "interrupt-affinity"
property (which is the case for UP platforms).
This patch restore the broken functionnality by testing whether the
interrupt is percpu or not instead of relying on the using_spi flag
that really means "SPI *and* interrupt-affinity property".
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Fixes: 19a469a587 ("drivers/perf: arm-pmu: Handle per-interrupt affinity mask")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Marc Zyngierauthored and Will Deaconcommited 2016-08-09 17:57:39 +01:00
arm_pmu_mutex is never held long and we don't want to sleep while the
lock is being held as it's executed in the context of hotplug notifiers.
So it can be converted to a simple spinlock instead.
Without this patch we get the following warning:
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:620
in_atomic(): 1, irqs_disabled(): 128, pid: 0, name: swapper/2
no locks held by swapper/2/0.
irq event stamp: 381314
hardirqs last enabled at (381313): _raw_spin_unlock_irqrestore+0x7c/0x88
hardirqs last disabled at (381314): cpu_die+0x28/0x48
softirqs last enabled at (381294): _local_bh_enable+0x28/0x50
softirqs last disabled at (381293): irq_enter+0x58/0x78
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.7.0 #12
Call trace:
dump_backtrace+0x0/0x220
show_stack+0x24/0x30
dump_stack+0xb4/0xf0
___might_sleep+0x1d8/0x1f0
__might_sleep+0x5c/0x98
mutex_lock_nested+0x54/0x400
arm_perf_starting_cpu+0x34/0xb0
cpuhp_invoke_callback+0x88/0x3d8
notify_cpu_starting+0x78/0x98
secondary_start_kernel+0x108/0x1a8
This patch converts the mutex to spinlock to eliminate the above
warnings. This constraints pmu->reset to be non-blocking call which is
the case with all the ARM PMU backends.
Cc: Stephen Boyd <sboyd@codeaurora.org>
Fixes: 37b502f121 ("arm/perf: Fix hotplug state machine conversion")
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Sudeep Hollaauthored and Will Deaconcommited 2016-08-09 17:33:38 +01:00
Pull smp hotplug updates from Thomas Gleixner:
"This is the next part of the hotplug rework.
- Convert all notifiers with a priority assigned
- Convert all CPU_STARTING/DYING notifiers
The final removal of the STARTING/DYING infrastructure will happen
when the merge window closes.
Another 700 hundred line of unpenetrable maze gone :)"
* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
timers/core: Correct callback order during CPU hot plug
leds/trigger/cpu: Move from CPU_STARTING to ONLINE level
powerpc/numa: Convert to hotplug state machine
arm/perf: Fix hotplug state machine conversion
irqchip/armada: Avoid unused function warnings
ARC/time: Convert to hotplug state machine
clocksource/atlas7: Convert to hotplug state machine
clocksource/armada-370-xp: Convert to hotplug state machine
clocksource/exynos_mct: Convert to hotplug state machine
clocksource/arm_global_timer: Convert to hotplug state machine
rcu: Convert rcutree to hotplug state machine
KVM/arm/arm64/vgic-new: Convert to hotplug state machine
smp/cfd: Convert core to hotplug state machine
x86/x2apic: Convert to CPU hotplug state machine
profile: Convert to hotplug state machine
timers/core: Convert to hotplug state machine
hrtimer: Convert to hotplug state machine
x86/tboot: Convert to hotplug state machine
arm64/armv8 deprecated: Convert to hotplug state machine
hwtracing/coresight-etm4x: Convert to hotplug state machine
...
Mark Rutland pointed out that this commit is incomplete:
7d88eb695a ("arm/perf: Convert to hotplug state machine")
The problem is that:
> We may have multiple PMUs (e.g. two in big.LITTLE systems), and
> __oprofile_cpu_pmu only contains one of these. So this conversion is not
> correct.
>
> We were relying on the notifier list implicitly containing a list of
> those PMUs. It seems like we need an explicit list here.
>
> We keep __oprofile_cpu_pmu around for legacy 32-bit users of OProfile
> (on non-hetereogeneous systems), and that's all that the variable should
> be used for.
Introduce arm_pmu_list to correctly handle multiple PMUs in the system.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-tip-commits@vger.kernel.org
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160719111733.GA22911@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Sebastian Andrzej Siewiorauthored and Ingo Molnarcommited 2016-07-20 09:57:34 +02:00
On a big-little system, PMUs can be wired to CPUs using per CPU
interrups (PPI). In this case, it is important to make sure that
the enable/disable do happen on the right set of CPUs.
So instead of relying on the interrupt-affinity property, we can
use the actual percpu affinity that DT exposes as part of the
interrupt specifier. The DT binding is also updated to reflect
the fact that the interrupt-affinity property shouldn't be used
in that case.
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Marc Zyngierauthored and Catalin Marinascommited 2016-07-08 17:39:55 +01:00
There is a problem in the non-devicetree PMU probing where some
probe functions may get the number of supported events through
smp_call_function_any() using the arm_pmu supported_cpus mask.
But at the time the probe function is called, the supported_cpus
mask is empty so the call fails. This patch makes sure the mask
is set before calling the init function rather than after.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Mark Salterauthored and Will Deaconcommited 2016-06-15 09:51:35 +01:00
pmu->irq_affinity will not be freed if an error occurred within
arm_pmu_device_probe after of_pmu_irq_cfg has been called.
Note that in the case of_pmu_irq_cfg is returning an error,
pmu->irq_affinity will not be set, but it should be NULL as pmu was
kzalloc'd. Therefore the result kfree(NULL) is benign.
Signed-off-by: Julien Grall <julien.grall@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Julien Grallauthored and Will Deaconcommited 2016-06-03 10:16:21 +01:00
The global variable __oprofile_cpu_pmu is set before the PMU is fully
initialized. If an error occurs before the end of the initialization,
the PMU will be freed and the variable will contain an invalid pointer.
This will result in a kernel crash when perf will be used.
Fix it by moving the setting of __oprofile_cpu_pmu when the PMU is fully
initialized (i.e when it is no longer possible to fail).
Cc: <stable@vger.kernel.org>
Signed-off-by: Julien Grall <julien.grall@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Julien Grallauthored and Will Deaconcommited 2016-06-03 10:16:21 +01:00
The only function called by of_pmu_irq_cfg that will increment the
reference count on dn is of_parse_phandle.
Each time we successfully parse a possible CPU from an
interrupt-affinity property, we increment the refcount of that CPU node
once via of_parse_handle. After validating the CPU is possible, we
decrement the refcount once. Subsequently, we decrement the refcount
again, either as part of an early break if we don't have a matching SPI,
or as part of the end of the loop body.
This will lead to decrementing twice the refcounnt.
Remove the second pairs of call to of_node_put as nobody is using dn
between the first and second call to of_node_put.
Signed-off-by: Julien Grall <julien.grall@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Julien Grallauthored and Will Deaconcommited 2016-06-03 10:16:20 +01:00
Commit:
2665784850 ("perf/core: Verify we have a single perf_hw_context PMU")
forcefully prevents multiple PMUs from sharing perf_hw_context, as this
generally doesn't make sense. It is a common bug for uncore PMUs to
use perf_hw_context rather than perf_invalid_context, which this detects.
However, systems exist with heterogeneous CPUs (and hence heterogeneous
HW PMUs), for which sharing perf_hw_context is necessary, and possible
in some limited cases.
To make this work we have to perform some gymnastics, as we did in these
commits:
66eb579e66 ("perf: allow for PMU-specific event filtering")
c904e32a69 ("arm: perf: filter unschedulable events")
To allow those systems to work, we must allow PMUs for heterogeneous
CPUs to share perf_hw_context, though we must still disallow sharing
otherwise to detect the common misuse of perf_hw_context.
This patch adds a new PERF_PMU_CAP_HETEROGENEOUS_CPUS for this, updates
the core logic to account for this, and makes use of it in the arm_pmu
code that is used for systems with heterogeneous CPUs. Comments are
added to make the rationale clear and hopefully avoid accidental abuse.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20160426103346.GA20836@leverpostej
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Mark Rutlandauthored and Ingo Molnarcommited 2016-05-05 10:13:59 +02:00
Commit da4e4f18af ("drivers/perf: arm_pmu: implement CPU_PM notifier")
added code in the arm perf infrastructure that allows the kernel to
save/restore perf counters whenever the CPU enters a low-power
state. The kernel saves/restores the counters for each active event
through the armpmu_{stop/start} ARM pmu API, so that the low-power state
enter/exit cycle is emulated through pmu start/stop operations for each
event in use.
However, calling armpmu_start() for each active event on power up
executes code that requires RCU locking (perf_event_update_userpage())
to be functional, so, given that the core may call the CPU_PM notifiers
while running the idle thread in an quiescent RCU state this is not
allowed as detected through the following splat when kernel is run with
CONFIG_PROVE_LOCKING enabled:
[ 49.293286]
[ 49.294761] ===============================
[ 49.298895] [ INFO: suspicious RCU usage. ]
[ 49.303031] 4.6.0-rc3+ #421 Not tainted
[ 49.306821] -------------------------------
[ 49.310956] include/linux/rcupdate.h:872 rcu_read_lock() used
illegally while idle!
[ 49.318530]
[ 49.318530] other info that might help us debug this:
[ 49.318530]
[ 49.326451]
[ 49.326451] RCU used illegally from idle CPU!
[ 49.326451] rcu_scheduler_active = 1, debug_locks = 0
[ 49.337209] RCU used illegally from extended quiescent state!
[ 49.342892] 2 locks held by swapper/2/0:
[ 49.346768] #0: (cpu_pm_notifier_lock){......}, at:
[<ffffff8008163c28>] cpu_pm_exit+0x18/0x80
[ 49.355492] #1: (rcu_read_lock){......}, at: [<ffffff800816dc38>]
perf_event_update_userpage+0x0/0x260
This patch wraps the armpmu_start() call (that indirectly calls
perf_event_update_userpage()) on CPU_PM notifier power state exit (or
failed entry) within the RCU_NONIDLE() macro so that the RCU subsystem
is made aware the calling cpu is not idle from an RCU perspective for
the armpmu_start() call duration, therefore fixing the issue.
Fixes: da4e4f18af ("drivers/perf: arm_pmu: implement CPU_PM notifier")
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reported-by: James Morse <james.morse@arm.com>
Suggested-by: Kevin Hilman <khilman@baylibre.com>
Cc: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Lorenzo Pieralisiauthored and Catalin Marinascommited 2016-04-21 15:03:06 +01:00
Commit c6b90653f1 ("drivers/perf: arm_pmu: make info messages more
verbose") breaks booting on systems where the PMU is probed without
devicetree (e.g by inspecting the MIDR of the current CPU). In this case,
pdev->dev.of_node is NULL and we shouldn't try to access its ->fullname
field when printing probe error messages.
This patch fixes the probing code to use of_node_full_name, which safely
handles NULL nodes and removes the "Error %i" part of the string, since
it's not terribly useful.
Reported-by: Guenter Roeck <private@roeck-us.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
When a CPU is suspended (either through suspend-to-RAM or CPUidle),
its PMU registers content can be lost, which means that counters
registers values that were initialized on power down entry have to be
reprogrammed on power-up to make sure the counters set-up is preserved
(ie on power-up registers take the reset values on Cold or Warm reset,
which can be architecturally UNKNOWN).
To guarantee seamless profiling conditions across a core power down
this patch adds a CPU PM notifier to ARM pmus, that upon CPU PM
entry/exit from low-power states saves/restores the pmu registers
set-up (by using the ARM perf API), so that the power-down/up cycle does
not affect the perf behaviour (apart from a black-out period between
power-up/down CPU PM notifications that is unavoidable).
Cc: Will Deacon <will.deacon@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Acked-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Lorenzo Pieralisiauthored and Will Deaconcommited 2016-02-26 14:37:06 +00:00
On a big.LITTLE system e.g. with Cortex A57 and A53 in case not all cores
are online at PMU probe time we might get
hw perfevents: failed to probe PMU!
hw perfevents: failed to register PMU devices!
making it unclear which cores failed, here.
Add the device tree full name which failed and the error value resulting
in a more verbose and helpful message like
hw perfevents: /soc/pmu_a53: failed to probe PMU! Error -6
hw perfevents: /soc/pmu_a53: failed to register PMU devices! Error -6
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Dirk Behmeauthored and Will Deaconcommited 2016-02-09 11:18:39 +00:00
ARMv7 counters other than the CPU cycle counter only work if the Secure
Debug Enable Register (SDER) SUNIDEN bit is set.
Since access to the SDER is only possible in secure state, it will
only be done if the device tree property "secure-reg-access" is set.
Without this:
Performance counter stats for 'sleep 1':
14606094 cycles # 0.000 GHz
0 instructions # 0.00 insns per cycle
After applying:
Performance counter stats for 'sleep 1':
5843809 cycles
2566484 instructions # 0.44 insns per cycle
1.020144000 seconds time elapsed
Some platforms (eg i.MX53) may also need additional platform specific
setup.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Pooya Keshavarzi <Pooya.Keshavarzi@de.bosch.com>
Signed-off-by: George G. Davis <george_davis@mentor.com>
[will: add warning if property is found on arm64]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Martin Fuzzeyauthored and Will Deaconcommited 2016-01-25 18:37:44 +00:00
Nothing outside of drivers/perf/arm_pmu.c should call armpmu_register
any more, so it no longer needs to be in include/linux/perf/arm_pmu.h.
Additionally, by folding it in to arm_pmu_device_probe we can allow
drivers to override struct pmu fields without getting blatted by the
armpmu code.
This patch folds armpmu_register into arm_pmu_device_probe. The logging
to the console is moved to after the PMU is successfully registered with
the core perf code.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Suggested-by: Will Deacon <will.deacon@arm.com>
Cc: Drew Richardson <drew.richardson@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Mark Rutlandauthored and Will Deaconcommited 2015-11-16 15:41:49 +00:00
- "genirq: Introduce generic irq migration for cpu hotunplugged" patch
merged from tip/irq/for-arm to allow the arm64-specific part to be
upstreamed via the arm64 tree
- CPU feature detection reworked to cope with heterogeneous systems
where CPUs may not have exactly the same features. The features
reported by the kernel via internal data structures or ELF_HWCAP are
delayed until all the CPUs are up (and before user space starts)
- Support for 16KB pages, with the additional bonus of a 36-bit VA
space, though the latter only depending on EXPERT
- Implement native {relaxed, acquire, release} atomics for arm64
- New ASID allocation algorithm which avoids IPI on roll-over, together
with TLB invalidation optimisations (using local vs global where
feasible)
- KASan support for arm64
- EFI_STUB clean-up and isolation for the kernel proper (required by
KASan)
- copy_{to,from,in}_user optimisations (sharing the memcpy template)
- perf: moving arm64 to the arm32/64 shared PMU framework
- L1_CACHE_BYTES increased to 128 to accommodate Cavium hardware
- Support for the contiguous PTE hint on kernel mapping (16 consecutive
entries may be able to use a single TLB entry)
- Generic CONFIG_HZ now used on arm64
- defconfig updates
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- "genirq: Introduce generic irq migration for cpu hotunplugged" patch
merged from tip/irq/for-arm to allow the arm64-specific part to be
upstreamed via the arm64 tree
- CPU feature detection reworked to cope with heterogeneous systems
where CPUs may not have exactly the same features. The features
reported by the kernel via internal data structures or ELF_HWCAP are
delayed until all the CPUs are up (and before user space starts)
- Support for 16KB pages, with the additional bonus of a 36-bit VA
space, though the latter only depending on EXPERT
- Implement native {relaxed, acquire, release} atomics for arm64
- New ASID allocation algorithm which avoids IPI on roll-over, together
with TLB invalidation optimisations (using local vs global where
feasible)
- KASan support for arm64
- EFI_STUB clean-up and isolation for the kernel proper (required by
KASan)
- copy_{to,from,in}_user optimisations (sharing the memcpy template)
- perf: moving arm64 to the arm32/64 shared PMU framework
- L1_CACHE_BYTES increased to 128 to accommodate Cavium hardware
- Support for the contiguous PTE hint on kernel mapping (16 consecutive
entries may be able to use a single TLB entry)
- Generic CONFIG_HZ now used on arm64
- defconfig updates
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (91 commits)
arm64/efi: fix libstub build under CONFIG_MODVERSIONS
ARM64: Enable multi-core scheduler support by default
arm64/efi: move arm64 specific stub C code to libstub
arm64: page-align sections for DEBUG_RODATA
arm64: Fix build with CONFIG_ZONE_DMA=n
arm64: Fix compat register mappings
arm64: Increase the max granular size
arm64: remove bogus TASK_SIZE_64 check
arm64: make Timer Interrupt Frequency selectable
arm64/mm: use PAGE_ALIGNED instead of IS_ALIGNED
arm64: cachetype: fix definitions of ICACHEF_* flags
arm64: cpufeature: declare enable_cpu_capabilities as static
genirq: Make the cpuhotplug migration code less noisy
arm64: Constify hwcap name string arrays
arm64/kvm: Make use of the system wide safe values
arm64/debug: Make use of the system wide safe value
arm64: Move FP/ASIMD hwcap handling to common code
arm64/HWCAP: Use system wide safe values
arm64/capabilities: Make use of system wide safe value
arm64: Delay cpu feature capability checks
...
of_cpu_device_node_get increments the reference count on the CPU
device_node, so we must take care to of_node_put once we've finished
with it.
This patch fixes the perf IRQ probing code to avoid the leak.
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Will Deaconauthored and Arnd Bergmanncommited 2015-10-15 17:11:23 +02:00
Now that the arm_pmu framework has been factored out to drivers/perf we
can make use of it for arm64, gaining support for heterogeneous PMUs
and unifying the two codebases before they diverge further.
The as yet unused PMU name for PMUv3 is changed to armv8_pmuv3, matching
the style previously applied to the 32-bit PMUs.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Mark Rutlandauthored and Catalin Marinascommited 2015-10-07 14:24:48 +01:00
To enable sharing of the arm_pmu code with arm64, this patch factors it
out to drivers/perf/. A new drivers/perf directory is added for
performance monitor drivers to live under.
MAINTAINERS is updated accordingly. Files added previously without a
corresponsing MAINTAINERS update (perf_regs.c, perf_callchain.c, and
perf_event.h) are also added.
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
[will: augmented Kconfig help slightly]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Mark Rutlandauthored and Will Deaconcommited 2015-07-31 15:01:14 +01:00
Raghavendra Rao Ananta
authored and
Gerrit - the friendly Code Review server
commited 
Sundara Vinayagam
commited 
Blagovest Kolenichev
commited 
Greg Kroah-Hartman
commited 
Mark Rutland
authored and
Greg Kroah-Hartman
commited 
Sami Tolvanen
commited 
Stephen Boyd
authored and
Patrick Fay
commited 
Tai Nguyen
authored and
Will Deacon
commited 
Linus Torvalds
commited 
Arnd Bergmann
commited 
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authored and
Duc Dang
commited 
Marc Zyngier
authored and
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authored and
Thomas Gleixner
commited 
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authored and
Catalin Marinas
commited 
Sudeep Holla
authored and
Ingo Molnar
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authored and
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authored and
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authored and
Martin Fuzzey
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