* refs/heads/tmp-fde6e0c:
Linux 5.4.11
usb: missing parentheses in USE_NEW_SCHEME
USB: serial: option: add Telit ME910G1 0x110a composition
USB: core: fix check for duplicate endpoints
usb: dwc3: gadget: Fix request complete check
net/mlx5: DR, Init lists that are used in rule's member
net/mlx5e: Fix hairpin RSS table size
net/mlx5: DR, No need for atomic refcount for internal SW steering resources
net/mlx5e: Always print health reporter message to dmesg
net: dsa: mv88e6xxx: force cmode write on 6141/6341
net/mlx5: Move devlink registration before interfaces load
macb: Don't unregister clks unconditionally
vlan: vlan_changelink() should propagate errors
vlan: fix memory leak in vlan_dev_set_egress_priority
net: sch_prio: When ungrafting, replace with FIFO
mlxsw: spectrum_qdisc: Ignore grafting of invisible FIFO
vxlan: fix tos value before xmit
tcp: fix "old stuff" D-SACK causing SACK to be treated as D-SACK
sctp: free cmd->obj.chunk for the unprocessed SCTP_CMD_REPLY
sch_cake: avoid possible divide by zero in cake_enqueue()
pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM
net: usb: lan78xx: fix possible skb leak
net: stmmac: Fixed link does not need MDIO Bus
net: stmmac: dwmac-sunxi: Allow all RGMII modes
net: stmmac: dwmac-sun8i: Allow all RGMII modes
net: freescale: fec: Fix ethtool -d runtime PM
net: dsa: mv88e6xxx: Preserve priority when setting CPU port.
macvlan: do not assume mac_header is set in macvlan_broadcast()
gtp: fix bad unlock balance in gtp_encap_enable_socket
tracing: Do not create directories if lockdown is in affect
selftests: pmtu: fix init mtu value in description
hv_netvsc: Fix unwanted rx_table reset
llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c)
s390/qeth: don't return -ENOTSUPP to userspace
s390/qeth: fix promiscuous mode after reset
s390/qeth: handle error due to unsupported transport mode
sbitmap: only queue kyber's wait callback if not already active
parisc: Fix compiler warnings in debug_core.c
block: fix memleak when __blk_rq_map_user_iov() is failed
s390/dasd: fix memleak in path handling error case
s390/dasd/cio: Interpret ccw_device_get_mdc return value correctly
block: Fix a lockdep complaint triggered by request queue flushing
arm64: cpu_errata: Add Hisilicon TSV110 to spectre-v2 safe list
platform/x86: pcengines-apuv2: fix simswap GPIO assignment
net/ixgbe: Fix concurrency issues between config flow and XSK
net/i40e: Fix concurrency issues between config flow and XSK
net/mlx5e: Fix concurrency issues between config flow and XSK
xsk: Add rcu_read_lock around the XSK wakeup
tpm/tpm_ftpm_tee: add shutdown call back
drm/exynos: gsc: add missed component_del
s390/purgatory: do not build purgatory with kcov, kasan and friends
net: stmmac: Always arm TX Timer at end of transmission start
net: stmmac: RX buffer size must be 16 byte aligned
net: stmmac: xgmac: Clear previous RX buffer size
net: stmmac: Do not accept invalid MTU values
net: stmmac: Determine earlier the size of RX buffer
net: stmmac: selftests: Needs to check the number of Multicast regs
clk: Move clk_core_reparent_orphans() under CONFIG_OF
io_uring: don't wait when under-submitting
iommu/dma: Relax locking in iommu_dma_prepare_msi()
perf/smmuv3: Remove the leftover put_cpu() in error path
fs: call fsnotify_sb_delete after evict_inodes
fs: avoid softlockups in s_inodes iterators
block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT
usb: typec: fusb302: Fix an undefined reference to 'extcon_get_state'
psi: Fix a division error in psi poll()
sched/psi: Fix sampling error and rare div0 crashes with cgroups and high uptime
perf/x86/intel: Fix PT PMI handling
perf/x86: Fix potential out-of-bounds access
scripts: package: mkdebian: add missing rsync dependency
kconfig: don't crash on NULL expressions in expr_eq()
iommu/iova: Init the struct iova to fix the possible memleak
staging: axis-fifo: add unspecified HAS_IOMEM dependency
clk: at91: fix possible deadlock
spi: nxp-fspi: Ensure width is respected in spi-mem operations
regulator: rn5t618: fix module aliases
ASoC: wm8962: fix lambda value
rfkill: Fix incorrect check to avoid NULL pointer dereference
parisc: add missing __init annotation
parisc: fix compilation when KEXEC=n and KEXEC_FILE=y
net: usb: lan78xx: Fix error message format specifier
cxgb4: Fix kernel panic while accessing sge_info
bnx2x: Fix logic to get total no. of PFs per engine
bnx2x: Do not handle requests from VFs after parity
habanalabs: remove variable 'val' set but not used
habanalabs: rate limit error msg on waiting for CS
bpf: Clear skb->tstamp in bpf_redirect when necessary
ocxl: Fix potential memory leak on context creation
Btrfs: fix hole extent items with a zero size after range cloning
btrfs: handle error in btrfs_cache_block_group
powerpc/spinlocks: Include correct header for static key
powerpc/vcpu: Assume dedicated processors as non-preempt
Btrfs: fix cloning range with a hole when using the NO_HOLES feature
btrfs: Fix error messages in qgroup_rescan_init
powerpc: Ensure that swiotlb buffer is allocated from low memory
pinctrl: pinmux: fix a possible null pointer in pinmux_can_be_used_for_gpio
cfg80211: fix double-free after changing network namespace
mac80211: fix TID field in monitor mode transmit
clk: walk orphan list on clock provider registration
bus: ti-sysc: Fix missing reset delay handling
pinctrl: aspeed-g6: Fix LPC/eSPI mux configuration
ARM: imx_v6_v7_defconfig: Explicitly restore CONFIG_DEBUG_FS
arm64: dts: ls1028a: fix reboot node
samples: bpf: fix syscall_tp due to unused syscall
samples: bpf: Replace symbol compare of trace_event
kselftest: Support old perl versions
kselftest/runner: Print new line in print of timeout log
ARM: dts: am437x-gp/epos-evm: fix panel compatible
spi: spi-ti-qspi: Fix a bug when accessing non default CS
perf header: Fix false warning when there are no duplicate cache entries
perf metricgroup: Fix printing event names of metric group with multiple events
bpftool: Don't crash on missing jited insns or ksyms
bpf, mips: Limit to 33 tail calls
bpf, riscv: Limit to 33 tail calls
arm64: dts: ls1028a: fix typo in TMU calibration data
ARM: dts: bcm283x: Fix critical trip point
ARM: omap2plus_defconfig: Add back DEBUG_FS
ARM: dts: am335x-sancloud-bbe: fix phy mode
ASoC: SOF: Intel: split cht and byt debug window sizes
ASoC: SOF: loader: snd_sof_fw_parse_ext_data log warning on unknown header
ASoC: topology: Check return value for soc_tplg_pcm_create()
ASoC: topology: Check return value for snd_soc_add_dai_link()
reset: Do not register resource data for missing resets
spi: spi-cavium-thunderx: Add missing pci_release_regions()
ARM: dts: Cygnus: Fix MDIO node address/size cells
ARM: exynos_defconfig: Restore debugfs support
selftests: safesetid: Fix Makefile to set correct test program
selftests: safesetid: Check the return value of setuid/setgid
selftests: safesetid: Move link library to LDLIBS
selftests/ftrace: Fix multiple kprobe testcase
selftests/ftrace: Do not to use absolute debugfs path
selftests/ftrace: Fix ftrace test cases to check unsupported
selftests/ftrace: Fix to check the existence of set_ftrace_filter
ARM: dts: BCM5301X: Fix MDIO node address/size cells
netfilter: nf_tables_offload: return EOPNOTSUPP if rule specifies no actions
netfilter: nf_tables: skip module reference count bump on object updates
netfilter: nf_tables: validate NFT_DATA_VALUE after nft_data_init()
netfilter: nf_tables: validate NFT_SET_ELEM_INTERVAL_END
netfilter: nft_set_rbtree: bogus lookup/get on consecutive elements in named sets
netfilter: uapi: Avoid undefined left-shift in xt_sctp.h
ARM: vexpress: Set-up shared OPP table instead of individual for each CPU
ARM: dts: imx6ul: imx6ul-14x14-evk.dtsi: Fix SPI NOR probing
efi/earlycon: Remap entire framebuffer after page initialization
efi/gop: Fix memory leak in __gop_query32/64()
efi/gop: Return EFI_SUCCESS if a usable GOP was found
efi/gop: Return EFI_NOT_FOUND if there are no usable GOPs
selftests: netfilter: use randomized netns names
ASoC: Intel: bytcr_rt5640: Update quirk for Teclast X89
x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage
regulator: core: fix regulator_register() error paths to properly release rdev
libtraceevent: Copy pkg-config file to output folder when using O=
libtraceevent: Fix lib installation with O=
mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()
netfilter: nf_tables_offload: Check for the NETDEV_UNREGISTER event
x86/intel: Disable HPET on Intel Ice Lake platforms
netfilter: ctnetlink: netns exit must wait for callbacks
locking/spinlock/debug: Fix various data races
spi: fsl: Handle the single hardwired chipselect case
gpio: Handle counting of Freescale chipselects
spi: fsl: Fix GPIO descriptor support
ASoC: max98090: fix possible race conditions
regulator: fix use after free issue
spi: pxa2xx: Add support for Intel Jasper Lake
ASoC: rt5682: fix i2c arbitration lost issue
bpf: Fix passing modified ctx to ld/abs/ind instruction
USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
ANDROID: Kconfig.gki: Add QCOM_SCM to QCOM Hidden configs
ANDROID: iommu/arm-smmu: Allow inherting stream mapping from bootloader
ANDROID: iommu/arm-smmu: Expose s2cr and smr structs to impl
ANDROID: iommu/arm-smmu: Don't blindly use first SMR to calculate mask
ANDROID: clk: qcom: Add sync_state = clk_sync_state for db845c clock providers
UPSTREAM: net: usbnet: Fix -Wcast-function-type
UPSTREAM: PM / QoS: Restore DEV_PM_QOS_MIN/MAX_FREQUENCY
UPSTREAM: PM / QoS: Reorder pm_qos/freq_qos/dev_pm_qos structs
UPSTREAM: USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
ANDROID: update kernel ABI (perf_event changes)
BACKPORT: perf_event: Add support for LSM and SELinux checks
ANDROID: Enable HID_STEAM and JOYSTICK_XPAD as y
Conflicts:
drivers/iommu/arm-smmu.c
drivers/iommu/dma-iommu.c
include/linux/pm_qos.h
init/Kconfig.gki
kernel/sched/psi.c
Restored change a7f7e61270 ("usb: dwc3: gadget: Fix logical condition")
since it is safe due to import of 158cbd970b ("usb: dwc3: gadget:
Fix request complete check").
Change-Id: Id8931bdd4b8a6bde233d654abc87019fc6f2ec22
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
* refs/heads/tmp-813bf83:
ANDROID: update abi for previous revert
Revert "BACKPORT: perf_event: Add support for LSM and SELinux checks"
Linux 5.4.9
mm/hugetlb: defer freeing of huge pages if in non-task context
hsr: fix a race condition in node list insertion and deletion
hsr: fix error handling routine in hsr_dev_finalize()
hsr: avoid debugfs warning message when module is remove
net: annotate lockless accesses to sk->sk_pacing_shift
perf/x86/intel/bts: Fix the use of page_private()
efi: Don't attempt to map RCI2 config table if it doesn't exist
lib/ubsan: don't serialize UBSAN report
xen/blkback: Avoid unmapping unmapped grant pages
mm/sparse.c: mark populate_section_memmap as __meminit
s390/smp: fix physical to logical CPU map for SMT
Btrfs: only associate the locked page with one async_chunk struct
btrfs: get rid of unique workqueue helper functions
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps
net: add annotations on hh->hh_len lockless accesses
xfs: periodically yield scrub threads to the scheduler
drm/i915/execlists: Fix annotation for decoupling virtual request
ath9k_htc: Discard undersized packets
ath9k_htc: Modify byte order for an error message
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
fs: cifs: Fix atime update check vs mtime
cifs: Fix lookup of root ses in DFS referral cache
tty: serial: msm_serial: Fix lockup for sysrq and oops
phy: renesas: rcar-gen3-usb2: Use platform_get_irq_optional() for optional irq
arm64: dts: meson: odroid-c2: Disable usb_otg bus to avoid power failed warning
dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix typo in example
media: usb: fix memory leak in af9005_identify_state
regulator: ab8500: Remove AB8505 USB regulator
media: flexcop-usb: ensure -EIO is returned on error condition
arm64: dts: meson-gxm-khadas-vim2: fix uart_A bluetooth node
arm64: dts: meson-gxl-s905x-khadas-vim: fix uart_A bluetooth node
Bluetooth: Fix memory leak in hci_connect_le_scan
Bluetooth: delete a stray unlock
Bluetooth: btusb: fix PM leak in error case of setup
powerpc/mm: Mark get_slice_psize() & slice_addr_is_low() as notrace
regulator: axp20x: Fix AXP22x ELDO2 regulator enable bitmask
spi: uniphier: Fix FIFO threshold
regulator: bd70528: Remove .set_ramp_delay for bd70528_ldo_ops
regulator: axp20x: Fix axp20x_set_ramp_delay
watchdog: tqmx86_wdt: Fix build error
net, sysctl: Fix compiler warning when only cBPF is present
netfilter: nf_queue: enqueue skbs with NULL dst
platform/x86: pmc_atom: Add Siemens CONNECT X300 to critclk_systems DMI table
xfs: don't check for AG deadlock for realtime files in bunmapi
firmware: arm_scmi: Avoid double free in error flow
cifs: Fix potential softlockups while refreshing DFS cache
of: overlay: add_changeset_property() memory leak
iommu/vt-d: Remove incorrect PSI capability check
perf callchain: Fix segfault in thread__resolve_callchain_sample()
ACPI: sysfs: Change ACPI_MASKABLE_GPE_MAX to 0x100
kernel/module.c: wakeup processes in module_wq on module unload
net/sched: annotate lockless accesses to qdisc->empty
HID: i2c-hid: Reset ALPS touchpads on resume
powerpc: Chunk calls to flush_dcache_range in arch_*_memory
nfsd4: fix up replay_matches_cache()
arm64: dts: qcom: msm8998-clamshell: Remove retention idle state
sunrpc: fix crash when cache_head become valid before update
PM / devfreq: Check NULL governor in available_governors_show
drm/msm: include linux/sched/task.h
spi: spi-fsl-dspi: Fix 16-bit word order in 32-bit XSPI mode
ftrace: Avoid potential division by zero in function profiler
arm64: Revert support for execute-only user mappings
exit: panic before exit_mm() on global init exit
scsi: lpfc: Fix rpi release when deleting vport
ALSA: firewire-motu: Correct a typo in the clock proc string
ALSA: pcm: Yet another missing check of non-cached buffer type
ALSA: cs4236: fix error return comparison of an unsigned integer
gen_initramfs_list.sh: fix 'bad variable name' error
dmaengine: virt-dma: Fix access after free in vchan_complete()
apparmor: fix aa_xattrs_match() may sleep while holding a RCU lock
mm/gup: fix memory leak in __gup_benchmark_ioctl
io_uring: use current task creds instead of allocating a new one
samples/trace_printk: Wait for IRQ work to finish
tracing: Fix endianness bug in histogram trigger
tracing: Have the histogram compare functions convert to u64 first
tracing: Avoid memory leak in process_system_preds()
tracing: Fix lock inversion in trace_event_enable_tgid_record()
rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
riscv: ftrace: correct the condition logic in function graph tracer
clocksource: riscv: add notrace to riscv_sched_clock
gpiolib: fix up emulated open drain outputs
gpio: xtensa: fix driver build
libata: Fix retrieving of active qcs
ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
ata: ahci_brcm: Add missing clock management during recovery
ata: ahci_brcm: Fix AHCI resources management
ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
bpf: Fix precision tracking for unbounded scalars
compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES
compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
compat_ioctl: block: handle Persistent Reservations
Btrfs: fix infinite loop during nocow writeback due to race
dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B
dmaengine: Fix access to uninitialized dma_slave_caps
selftests/seccomp: Catch garbage on SECCOMP_IOCTL_NOTIF_RECV
samples/seccomp: Zero out members based on seccomp_notif_sizes
seccomp: Check that seccomp_notif is zeroed out by the user
selftests/seccomp: Zero out seccomp_notif
locks: print unsigned ino in /proc/locks
gcc-plugins: make it possible to disable CONFIG_GCC_PLUGINS again
pstore/ram: Fix error-path memory leak in persistent_ram_new() callers
pstore/ram: Write new dumps to start of recycled zones
ocfs2: fix the crash due to call ocfs2_get_dlm_debug once less
mm/oom: fix pgtables units mismatch in Killed process message
mm: move_pages: return valid node id in status if the page is already on the target node
memcg: account security cred as well to kmemcg
mm/zsmalloc.c: fix the migrated zspage statistics.
mm/memory_hotplug: shrink zones when offlining memory
media: cec: check 'transmit_in_progress', not 'transmitting'
media: cec: avoid decrementing transmit_queue_sz if it is 0
media: cec: CEC 2.0-only bcast messages were ignored
media: pulse8-cec: fix lost cec_transmit_attempt_done() call
MIPS: Avoid VDSO ABI breakage due to global register variable
MIPS: BPF: eBPF JIT: check for MIPS ISA compliance in Kconfig
MIPS: BPF: Disable MIPS32 eBPF JIT
drm/amdgpu/smu: add metrics table lock for vega20 (v2)
drm/amdgpu/smu: add metrics table lock for navi (v2)
drm/amdgpu/smu: add metrics table lock for arcturus (v2)
drm/amdgpu/smu: add metrics table lock
drm/sun4i: hdmi: Remove duplicate cleanup calls
ALSA: hda/realtek - Add headset Mic no shutup for ALC283
ALSA: hda - Apply sync-write workaround to old Intel platforms, too
ALSA: usb-audio: set the interface format after resume on Dell WD19
ALSA: usb-audio: fix set_format altsetting sanity check
ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code
mm: drop mmap_sem before calling balance_dirty_pages() in write fault
block: add bio_truncate to fix guard_bio_eod
netfilter: nft_tproxy: Fix port selector on Big Endian
ALSA: hda - Downgrade error message for single-cmd fallback
taskstats: fix data-race
shmem: pin the file in shmem_fault() if mmap_sem is dropped
tcp: fix data-race in tcp_recvmsg()
ALSA: hda - fixup for the bass speaker on Lenovo Carbon X1 7th gen
PCI: Fix missing inline for pci_pr3_present()
ALSA: hda: Allow HDA to be runtime suspended when dGPU is not bound to a driver
PCI: Add a helper to check Power Resource Requirements _PR3 existence
ALSA: hda/realtek - Enable the bass speaker of ASUS UX431FLC
ALSA: hda/realtek - Add Bass Speaker and fixed dac for bass speaker
PM / hibernate: memory_bm_find_bit(): Tighten node optimisation
xen/balloon: fix ballooned page accounting without hotplug enabled
xen-blkback: prevent premature module unload
IB/mlx5: Fix steering rule of drop and count
IB/mlx4: Follow mirror sequence of device add during device removal
RDMA/counter: Prevent auto-binding a QP which are not tracked with res
s390/cpum_sf: Avoid SBD overflow condition in irq handler
s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits
md: raid1: check rdev before reference in raid1_sync_request func
raid5: need to set STRIPE_HANDLE for batch head
afs: Fix creation calls in the dynamic root to fail with EOPNOTSUPP
afs: Fix mountpoint parsing
net: make socket read/write_iter() honor IOCB_NOWAIT
usb: gadget: fix wrong endpoint desc
drm/nouveau/kms/nv50-: fix panel scaling
drm/nouveau: Fix drm-core using atomic code-paths on pre-nv50 hardware
drm/nouveau: Move the declaration of struct nouveau_conn_atom up a bit
staging/wlan-ng: add CRC32 dependency in Kconfig
scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
scsi: libsas: stop discovering if oob mode is disconnected
scsi: iscsi: qla4xxx: fix double free in probe
scsi: qla2xxx: Ignore PORT UPDATE after N2N PLOGI
scsi: qla2xxx: Don't defer relogin unconditonally
scsi: qla2xxx: Send Notify ACK after N2N PLOGI
scsi: qla2xxx: Configure local loop for N2N target
scsi: qla2xxx: Fix PLOGI payload and ELS IOCB dump length
scsi: qla2xxx: Don't call qlt_async_event twice
scsi: qla2xxx: Drop superfluous INIT_WORK of del_work
scsi: qla2xxx: Use explicit LOGO in target mode
scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func
rxe: correctly calculate iCRC for unaligned payloads
RDMA/cma: add missed unregister_pernet_subsys in init failure
afs: Fix SELinux setting security label on /afs
afs: Fix afs_find_server lookups for ipv4 peers
PM / devfreq: Don't fail devfreq_dev_release if not in list
PM / devfreq: Set scaling_max_freq to max on OPP notifier error
PM / devfreq: Fix devfreq_notifier_call returning errno
iio: adc: max9611: Fix too short conversion time delay
iio: st_accel: Fix unused variable warning
nvme/pci: Fix read queue count
nvme/pci: Fix write and poll queue types
drm/amd/display: update dispclk and dppclk vco frequency
drm/amd/display: Reset steer fifo before unblanking the stream
drm/amd/display: Change the delay time before enabling FEC
drm/amd/display: Fixed kernel panic when booting with DP-to-HDMI dongle
drm/amd/display: Map DSC resources 1-to-1 if numbers of OPPs and DSCs are equal
drm/amdgpu: add cache flush workaround to gfx8 emit_fence
drm/amdgpu: add header line for power profile on Arcturus
drm/amdgpu: add check before enabling/disabling broadcast mode
nvme-fc: fix double-free scenarios on hw queues
nvme_fc: add module to ops template to allow module references
drm/mcde: dsi: Fix invalid pointer dereference if panel cannot be found
ANDROID: update kernel ABI representation
BACKPORT: perf_event: Add support for LSM and SELinux checks
ANDROID: Update ABI representation
ANDROID: GKI: clk: Don't disable unused clocks with sync state support
ANDROID: GKI: clk: Add support for clock providers with sync state
ANDROID: GKI: driver core: Add dev_has_sync_state()
ANDROID: sdcardfs: fix -ENOENT lookup race issue
CHROMIUM: cgroups: relax permissions on moving tasks between cgroups
UPSTREAM: selinux: sidtab reverse lookup hash table
ANDROID: update abi for 5.4.8 release
Conflicts:
Documentation/devicetree/bindings
Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.txt
arch/arm64/mm/mmu.c
include/linux/clk-provider.h
Change-Id: I668e3fd58b4ad5db037f700b66f89cdf845094b5
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
Support for adding per-device frequency limits was removed in
commit 2aac8bdf7a ("PM: QoS: Drop frequency QoS types from device PM QoS")
after cpufreq switched to use a new "freq_constraints" construct.
Restore support for per-device freq limits but base this upon
freq_constraints. This is primarily meant to be used by the devfreq
subsystem.
This removes the "static" marking on freq_qos_apply but does not export
it for modules.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bug: 147443391
Change-Id: Id10ed115ca726e65a7daa827b8ee93700b5a9e2c
(cherry picked from commit 36a8015f89e40f7c9c91cc7e6d028fa288dad27b)
Signed-off-by: Todd Kjos <tkjos@google.com>
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Merge 5.4.9 into android-5.4
Changes in 5.4.9
drm/mcde: dsi: Fix invalid pointer dereference if panel cannot be found
nvme_fc: add module to ops template to allow module references
nvme-fc: fix double-free scenarios on hw queues
drm/amdgpu: add check before enabling/disabling broadcast mode
drm/amdgpu: add header line for power profile on Arcturus
drm/amdgpu: add cache flush workaround to gfx8 emit_fence
drm/amd/display: Map DSC resources 1-to-1 if numbers of OPPs and DSCs are equal
drm/amd/display: Fixed kernel panic when booting with DP-to-HDMI dongle
drm/amd/display: Change the delay time before enabling FEC
drm/amd/display: Reset steer fifo before unblanking the stream
drm/amd/display: update dispclk and dppclk vco frequency
nvme/pci: Fix write and poll queue types
nvme/pci: Fix read queue count
iio: st_accel: Fix unused variable warning
iio: adc: max9611: Fix too short conversion time delay
PM / devfreq: Fix devfreq_notifier_call returning errno
PM / devfreq: Set scaling_max_freq to max on OPP notifier error
PM / devfreq: Don't fail devfreq_dev_release if not in list
afs: Fix afs_find_server lookups for ipv4 peers
afs: Fix SELinux setting security label on /afs
RDMA/cma: add missed unregister_pernet_subsys in init failure
rxe: correctly calculate iCRC for unaligned payloads
scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func
scsi: qla2xxx: Use explicit LOGO in target mode
scsi: qla2xxx: Drop superfluous INIT_WORK of del_work
scsi: qla2xxx: Don't call qlt_async_event twice
scsi: qla2xxx: Fix PLOGI payload and ELS IOCB dump length
scsi: qla2xxx: Configure local loop for N2N target
scsi: qla2xxx: Send Notify ACK after N2N PLOGI
scsi: qla2xxx: Don't defer relogin unconditonally
scsi: qla2xxx: Ignore PORT UPDATE after N2N PLOGI
scsi: iscsi: qla4xxx: fix double free in probe
scsi: libsas: stop discovering if oob mode is disconnected
scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
staging/wlan-ng: add CRC32 dependency in Kconfig
drm/nouveau: Move the declaration of struct nouveau_conn_atom up a bit
drm/nouveau: Fix drm-core using atomic code-paths on pre-nv50 hardware
drm/nouveau/kms/nv50-: fix panel scaling
usb: gadget: fix wrong endpoint desc
net: make socket read/write_iter() honor IOCB_NOWAIT
afs: Fix mountpoint parsing
afs: Fix creation calls in the dynamic root to fail with EOPNOTSUPP
raid5: need to set STRIPE_HANDLE for batch head
md: raid1: check rdev before reference in raid1_sync_request func
s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits
s390/cpum_sf: Avoid SBD overflow condition in irq handler
RDMA/counter: Prevent auto-binding a QP which are not tracked with res
IB/mlx4: Follow mirror sequence of device add during device removal
IB/mlx5: Fix steering rule of drop and count
xen-blkback: prevent premature module unload
xen/balloon: fix ballooned page accounting without hotplug enabled
PM / hibernate: memory_bm_find_bit(): Tighten node optimisation
ALSA: hda/realtek - Add Bass Speaker and fixed dac for bass speaker
ALSA: hda/realtek - Enable the bass speaker of ASUS UX431FLC
PCI: Add a helper to check Power Resource Requirements _PR3 existence
ALSA: hda: Allow HDA to be runtime suspended when dGPU is not bound to a driver
PCI: Fix missing inline for pci_pr3_present()
ALSA: hda - fixup for the bass speaker on Lenovo Carbon X1 7th gen
tcp: fix data-race in tcp_recvmsg()
shmem: pin the file in shmem_fault() if mmap_sem is dropped
taskstats: fix data-race
ALSA: hda - Downgrade error message for single-cmd fallback
netfilter: nft_tproxy: Fix port selector on Big Endian
block: add bio_truncate to fix guard_bio_eod
mm: drop mmap_sem before calling balance_dirty_pages() in write fault
ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code
ALSA: usb-audio: fix set_format altsetting sanity check
ALSA: usb-audio: set the interface format after resume on Dell WD19
ALSA: hda - Apply sync-write workaround to old Intel platforms, too
ALSA: hda/realtek - Add headset Mic no shutup for ALC283
drm/sun4i: hdmi: Remove duplicate cleanup calls
drm/amdgpu/smu: add metrics table lock
drm/amdgpu/smu: add metrics table lock for arcturus (v2)
drm/amdgpu/smu: add metrics table lock for navi (v2)
drm/amdgpu/smu: add metrics table lock for vega20 (v2)
MIPS: BPF: Disable MIPS32 eBPF JIT
MIPS: BPF: eBPF JIT: check for MIPS ISA compliance in Kconfig
MIPS: Avoid VDSO ABI breakage due to global register variable
media: pulse8-cec: fix lost cec_transmit_attempt_done() call
media: cec: CEC 2.0-only bcast messages were ignored
media: cec: avoid decrementing transmit_queue_sz if it is 0
media: cec: check 'transmit_in_progress', not 'transmitting'
mm/memory_hotplug: shrink zones when offlining memory
mm/zsmalloc.c: fix the migrated zspage statistics.
memcg: account security cred as well to kmemcg
mm: move_pages: return valid node id in status if the page is already on the target node
mm/oom: fix pgtables units mismatch in Killed process message
ocfs2: fix the crash due to call ocfs2_get_dlm_debug once less
pstore/ram: Write new dumps to start of recycled zones
pstore/ram: Fix error-path memory leak in persistent_ram_new() callers
gcc-plugins: make it possible to disable CONFIG_GCC_PLUGINS again
locks: print unsigned ino in /proc/locks
selftests/seccomp: Zero out seccomp_notif
seccomp: Check that seccomp_notif is zeroed out by the user
samples/seccomp: Zero out members based on seccomp_notif_sizes
selftests/seccomp: Catch garbage on SECCOMP_IOCTL_NOTIF_RECV
dmaengine: Fix access to uninitialized dma_slave_caps
dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B
Btrfs: fix infinite loop during nocow writeback due to race
compat_ioctl: block: handle Persistent Reservations
compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES
bpf: Fix precision tracking for unbounded scalars
ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
ata: ahci_brcm: Fix AHCI resources management
ata: ahci_brcm: Add missing clock management during recovery
ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
libata: Fix retrieving of active qcs
gpio: xtensa: fix driver build
gpiolib: fix up emulated open drain outputs
clocksource: riscv: add notrace to riscv_sched_clock
riscv: ftrace: correct the condition logic in function graph tracer
rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
tracing: Fix lock inversion in trace_event_enable_tgid_record()
tracing: Avoid memory leak in process_system_preds()
tracing: Have the histogram compare functions convert to u64 first
tracing: Fix endianness bug in histogram trigger
samples/trace_printk: Wait for IRQ work to finish
io_uring: use current task creds instead of allocating a new one
mm/gup: fix memory leak in __gup_benchmark_ioctl
apparmor: fix aa_xattrs_match() may sleep while holding a RCU lock
dmaengine: virt-dma: Fix access after free in vchan_complete()
gen_initramfs_list.sh: fix 'bad variable name' error
ALSA: cs4236: fix error return comparison of an unsigned integer
ALSA: pcm: Yet another missing check of non-cached buffer type
ALSA: firewire-motu: Correct a typo in the clock proc string
scsi: lpfc: Fix rpi release when deleting vport
exit: panic before exit_mm() on global init exit
arm64: Revert support for execute-only user mappings
ftrace: Avoid potential division by zero in function profiler
spi: spi-fsl-dspi: Fix 16-bit word order in 32-bit XSPI mode
drm/msm: include linux/sched/task.h
PM / devfreq: Check NULL governor in available_governors_show
sunrpc: fix crash when cache_head become valid before update
arm64: dts: qcom: msm8998-clamshell: Remove retention idle state
nfsd4: fix up replay_matches_cache()
powerpc: Chunk calls to flush_dcache_range in arch_*_memory
HID: i2c-hid: Reset ALPS touchpads on resume
net/sched: annotate lockless accesses to qdisc->empty
kernel/module.c: wakeup processes in module_wq on module unload
ACPI: sysfs: Change ACPI_MASKABLE_GPE_MAX to 0x100
perf callchain: Fix segfault in thread__resolve_callchain_sample()
iommu/vt-d: Remove incorrect PSI capability check
of: overlay: add_changeset_property() memory leak
cifs: Fix potential softlockups while refreshing DFS cache
firmware: arm_scmi: Avoid double free in error flow
xfs: don't check for AG deadlock for realtime files in bunmapi
platform/x86: pmc_atom: Add Siemens CONNECT X300 to critclk_systems DMI table
netfilter: nf_queue: enqueue skbs with NULL dst
net, sysctl: Fix compiler warning when only cBPF is present
watchdog: tqmx86_wdt: Fix build error
regulator: axp20x: Fix axp20x_set_ramp_delay
regulator: bd70528: Remove .set_ramp_delay for bd70528_ldo_ops
spi: uniphier: Fix FIFO threshold
regulator: axp20x: Fix AXP22x ELDO2 regulator enable bitmask
powerpc/mm: Mark get_slice_psize() & slice_addr_is_low() as notrace
Bluetooth: btusb: fix PM leak in error case of setup
Bluetooth: delete a stray unlock
Bluetooth: Fix memory leak in hci_connect_le_scan
arm64: dts: meson-gxl-s905x-khadas-vim: fix uart_A bluetooth node
arm64: dts: meson-gxm-khadas-vim2: fix uart_A bluetooth node
media: flexcop-usb: ensure -EIO is returned on error condition
regulator: ab8500: Remove AB8505 USB regulator
media: usb: fix memory leak in af9005_identify_state
dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix typo in example
arm64: dts: meson: odroid-c2: Disable usb_otg bus to avoid power failed warning
phy: renesas: rcar-gen3-usb2: Use platform_get_irq_optional() for optional irq
tty: serial: msm_serial: Fix lockup for sysrq and oops
cifs: Fix lookup of root ses in DFS referral cache
fs: cifs: Fix atime update check vs mtime
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
ath9k_htc: Modify byte order for an error message
ath9k_htc: Discard undersized packets
drm/i915/execlists: Fix annotation for decoupling virtual request
xfs: periodically yield scrub threads to the scheduler
net: add annotations on hh->hh_len lockless accesses
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps
btrfs: get rid of unique workqueue helper functions
Btrfs: only associate the locked page with one async_chunk struct
s390/smp: fix physical to logical CPU map for SMT
mm/sparse.c: mark populate_section_memmap as __meminit
xen/blkback: Avoid unmapping unmapped grant pages
lib/ubsan: don't serialize UBSAN report
efi: Don't attempt to map RCI2 config table if it doesn't exist
perf/x86/intel/bts: Fix the use of page_private()
net: annotate lockless accesses to sk->sk_pacing_shift
hsr: avoid debugfs warning message when module is remove
hsr: fix error handling routine in hsr_dev_finalize()
hsr: fix a race condition in node list insertion and deletion
mm/hugetlb: defer freeing of huge pages if in non-task context
Linux 5.4.9
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8eebcdac421faf74f70af8e8666abfdcdc45c86b
[ Upstream commit da6043fe85eb5ec621e34a92540735dcebbea134 ]
When looking for a bit by number we make use of the cached result from the
preceding lookup to speed up operation. Firstly we check if the requested
pfn is within the cached zone and if not lookup the new zone. We then
check if the offset for that pfn falls within the existing cached node.
This happens regardless of whether the node is within the zone we are
now scanning. With certain memory layouts it is possible for this to
false trigger creating a temporary alias for the pfn to a different bit.
This leads the hibernation code to free memory which it was never allocated
with the expected fallout.
Ensure the zone we are scanning matches the cached zone before considering
the cached node.
Deep thanks go to Andrea for many, many, many hours of hacking and testing
that went into cornering this bug.
Reported-by: Andrea Righi <andrea.righi@canonical.com>
Tested-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
As freq increases freq/power should decrease, indicating nonlinearly
higher power is required for running at higher frequencies.
If freq/power increases, the cost associated with that
freq will be lower than its previous one, causing the energy
calculations to choose a cpu with that frequency over a cpu with
the previous lesser freq.
For some frequencies, if their voltage increment from the
previous ones is very small (or is the same), we could end up with
higher freq/power ratio. This is primarily because
of_dev_pm_opp_get_cpu_power() returns power in mW and looses precision.
But instead of addressing it, enforce the same cost as the previous
frequency.
The energy evaluation code prefers the previous cpu when the energy costs
are same as other candidates. By keeping the energy costs same in these
situations we are increasing the likely hood of selecting prev cpu even
if it results in a slight freq bump. In general, selecting prev cpu is
beneficial because it avoids warming up the caches at a different cpu.
Change-Id: Ic66ab18ba65f2917b73d9fbe92a39b743b9839a0
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Switching cpufreq drivers (or switching operation modes of the
intel_pstate driver from "active" to "passive" and vice versa)
does not work on some x86 systems with ACPI after commit
3000ce3c52 ("cpufreq: Use per-policy frequency QoS"), because
the ACPI _PPC and thermal code uses the same frequency QoS request
object for a given CPU every time a cpufreq driver is registered
and freq_qos_remove_request() does not invalidate the request after
removing it from its QoS list, so freq_qos_add_request() complains
and fails when that request is passed to it again.
Fix the issue by modifying freq_qos_remove_request() to clear the qos
and type fields of the frequency request pointed to by its argument
after removing it from its QoS list so as to invalidate it.
Fixes: 3000ce3c52 ("cpufreq: Use per-policy frequency QoS")
Reported-and-tested-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Introduce frequency QoS, based on the "raw" low-level PM QoS, to
represent min and max frequency requests and aggregate constraints.
The min and max frequency requests are to be represented by
struct freq_qos_request objects and the aggregate constraints are to
be represented by struct freq_constraints objects. The latter are
expected to be initialized with the help of freq_constraints_init().
The freq_qos_read_value() helper is defined to retrieve the aggregate
constraints values from a given struct freq_constraints object and
there are the freq_qos_add_request(), freq_qos_update_request() and
freq_qos_remove_request() helpers to manipulate the min and max
frequency requests. It is assumed that the the helpers will not
run concurrently with each other for the same struct freq_qos_request
object, so if that may be the case, their uses must ensure proper
synchronization between them (e.g. through locking).
In addition, freq_qos_add_notifier() and freq_qos_remove_notifier()
are provided to add and remove notifiers that will trigger on aggregate
constraint changes to and from a given struct freq_constraints object,
respectively.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Include the <linux/runtime_pm.h> for the definition of
pm_wq to avoid the following warning:
kernel/power/main.c:890:25: warning: symbol 'pm_wq' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull kernel lockdown mode from James Morris:
"This is the latest iteration of the kernel lockdown patchset, from
Matthew Garrett, David Howells and others.
From the original description:
This patchset introduces an optional kernel lockdown feature,
intended to strengthen the boundary between UID 0 and the kernel.
When enabled, various pieces of kernel functionality are restricted.
Applications that rely on low-level access to either hardware or the
kernel may cease working as a result - therefore this should not be
enabled without appropriate evaluation beforehand.
The majority of mainstream distributions have been carrying variants
of this patchset for many years now, so there's value in providing a
doesn't meet every distribution requirement, but gets us much closer
to not requiring external patches.
There are two major changes since this was last proposed for mainline:
- Separating lockdown from EFI secure boot. Background discussion is
covered here: https://lwn.net/Articles/751061/
- Implementation as an LSM, with a default stackable lockdown LSM
module. This allows the lockdown feature to be policy-driven,
rather than encoding an implicit policy within the mechanism.
The new locked_down LSM hook is provided to allow LSMs to make a
policy decision around whether kernel functionality that would allow
tampering with or examining the runtime state of the kernel should be
permitted.
The included lockdown LSM provides an implementation with a simple
policy intended for general purpose use. This policy provides a coarse
level of granularity, controllable via the kernel command line:
lockdown={integrity|confidentiality}
Enable the kernel lockdown feature. If set to integrity, kernel features
that allow userland to modify the running kernel are disabled. If set to
confidentiality, kernel features that allow userland to extract
confidential information from the kernel are also disabled.
This may also be controlled via /sys/kernel/security/lockdown and
overriden by kernel configuration.
New or existing LSMs may implement finer-grained controls of the
lockdown features. Refer to the lockdown_reason documentation in
include/linux/security.h for details.
The lockdown feature has had signficant design feedback and review
across many subsystems. This code has been in linux-next for some
weeks, with a few fixes applied along the way.
Stephen Rothwell noted that commit 9d1f8be5cf ("bpf: Restrict bpf
when kernel lockdown is in confidentiality mode") is missing a
Signed-off-by from its author. Matthew responded that he is providing
this under category (c) of the DCO"
* 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (31 commits)
kexec: Fix file verification on S390
security: constify some arrays in lockdown LSM
lockdown: Print current->comm in restriction messages
efi: Restrict efivar_ssdt_load when the kernel is locked down
tracefs: Restrict tracefs when the kernel is locked down
debugfs: Restrict debugfs when the kernel is locked down
kexec: Allow kexec_file() with appropriate IMA policy when locked down
lockdown: Lock down perf when in confidentiality mode
bpf: Restrict bpf when kernel lockdown is in confidentiality mode
lockdown: Lock down tracing and perf kprobes when in confidentiality mode
lockdown: Lock down /proc/kcore
x86/mmiotrace: Lock down the testmmiotrace module
lockdown: Lock down module params that specify hardware parameters (eg. ioport)
lockdown: Lock down TIOCSSERIAL
lockdown: Prohibit PCMCIA CIS storage when the kernel is locked down
acpi: Disable ACPI table override if the kernel is locked down
acpi: Ignore acpi_rsdp kernel param when the kernel has been locked down
ACPI: Limit access to custom_method when the kernel is locked down
x86/msr: Restrict MSR access when the kernel is locked down
x86: Lock down IO port access when the kernel is locked down
...
This merges Linus's tree as of commit b41dae061b ("Merge tag
'xfs-5.4-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux")
into android-mainline.
This "early" merge makes it easier to test and handle merge conflicts
instead of having to wait until the "end" of the merge window and handle
all 10000+ commits at once.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6bebf55e5e2353f814e3c87f5033607b1ae5d812
* pm-opp:
PM / OPP: Correct Documentation about library location
opp: of: Support multiple suspend OPPs defined in DT
dt-bindings: opp: Support multiple opp-suspend properties
opp: core: add regulators enable and disable
opp: Don't decrement uninitialized list_kref
* pm-qos:
PM: QoS: Get rid of unused flags
* acpi-pm:
ACPI: PM: Print debug messages on device power state changes
* pm-domains:
PM / Domains: Verify PM domain type in dev_pm_genpd_set_performance_state()
PM / Domains: Simplify genpd_lookup_dev()
PM / Domains: Align in-parameter names for some genpd functions
* pm-tools:
pm-graph: make setVal unbuffered again for python2 and python3
cpupower: update German translation
tools/power/cpupower: fix 64bit detection when cross-compiling
cpupower: Add missing newline at end of file
pm-graph v5.5
* pm-s2idle-rework: (21 commits)
ACPI: PM: s2idle: Always set up EC GPE for system wakeup
ACPI: PM: s2idle: Avoid rearming SCI for wakeup unnecessarily
PM: suspend: Fix platform_suspend_prepare_noirq()
intel-hid: Disable button array during suspend-to-idle
intel-hid: intel-vbtn: Avoid leaking wakeup_mode set
ACPI: PM: s2idle: Execute LPS0 _DSM functions with suspended devices
ACPI: EC: PM: Make acpi_ec_dispatch_gpe() print debug message
ACPI: EC: PM: Consolidate some code depending on PM_SLEEP
ACPI: PM: s2idle: Eliminate acpi_sleep_no_ec_events()
ACPI: PM: s2idle: Switch EC over to polling during "noirq" suspend
ACPI: PM: s2idle: Add acpi.sleep_no_lps0 module parameter
ACPI: PM: s2idle: Rearrange lps0_device_attach()
ACPI: PM: Set up EC GPE for system wakeup from drivers that need it
PM: sleep: Drop dpm_noirq_begin() and dpm_noirq_end()
PM: sleep: Integrate suspend-to-idle with generig suspend flow
PM: sleep: Simplify suspend-to-idle control flow
ACPI: PM: Set s2idle_wakeup earlier and clear it later
PM: sleep: Fix possible overflow in pm_system_cancel_wakeup()
ACPI: EC: Return bool from acpi_ec_dispatch_gpe()
ACPICA: Return u32 from acpi_dispatch_gpe()
...
Problem background: In the process of suspend, maybe some device suspend
callback failed in dpm_suspend_start()/dpm_prepare()/dpm_suspend().
Because it's after suspend_console(), so printf() is disabled now.
Currently we can see "Some devices failed to suspend, or early wake
event detected" by log_suspend_abort_reason() in bugreport. There are
many devices but we don't know which exactly device failed. So we
want to do a little change to record which device failed.
Note: I checked upstream LTS kernel, then I found the
patch can not be sent upstream, because it uses function
log_suspend_abort_reason() in wakeup_reason.c, the initial
patch(https://patchwork.kernel.org/patch/3827331/) for adding
/kernel/power/wakeup_reason.c is not accepted by upstream which
was merged in AOSP common kernels. So maybe the patch could
only be sent to AOSP common kernels.
Test: manual - Use modified version for daily use two days, from
bugreport we can see which device failed.
Bug: 120445600
Change-Id: I326c87ca1263496db79d08ec615f12fc22452d7a
Signed-off-by: zhuguangqing <zhuguangqing@xiaomi.com>
The network_latency and network_throughput flags for PM-QoS have not
found much use in drivers or in userspace since they were introduced.
Commit 4a733ef1be ("mac80211: remove PM-QoS listener") removed the
only user PM_QOS_NETWORK_LATENCY in the kernel a while ago and there
don't seem to be any userspace tools using the character device files
either.
PM_QOS_MEMORY_BANDWIDTH was never even added to the trace events.
Remove all the flags except cpu_dma_latency.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add an ID and a device pointer to 'struct wakeup_source'. Use them to to
expose wakeup sources statistics in sysfs under
/sys/class/wakeup/wakeup<ID>/*.
Co-developed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Tri Vo <trong@android.com>
Tested-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
kernel/power/wakelock.c duplicates wakeup source creation and
registration code from drivers/base/power/wakeup.c.
Change struct wakelock's wakeup source to a pointer and use
wakeup_source_register() function to create and register said wakeup
source. Use wakeup_source_unregister() on cleanup path.
Signed-off-by: Tri Vo <trong@android.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There is currently no way to verify the resume image when returning
from hibernate. This might compromise the signed modules trust model,
so until we can work with signed hibernate images we disable it when the
kernel is locked down.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Matthew Garrett <mjg59@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: rjw@rjwysocki.net
Cc: pavel@ucw.cz
cc: linux-pm@vger.kernel.org
Signed-off-by: James Morris <jmorris@namei.org>
Use str_has_prefix() instead of strncmp() which is less
straightforward in decode_state().
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
After commit ac9eafbe93 ("ACPI: PM: s2idle: Execute LPS0 _DSM
functions with suspended devices"), a NULL pointer may be dereferenced
if suspend-to-idle is attempted on a platform without "traditional"
suspend support due to invalid fall-through in
platform_suspend_prepare_noirq().
Fix that and while at it add missing braces in platform_resume_noirq().
Fixes: ac9eafbe93 ("ACPI: PM: s2idle: Execute LPS0 _DSM functions with suspended devices")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
According to Section 3.5 of the "Intel Low Power S0 Idle" document [1],
Function 5 of the LPS0 _DSM is expected to be invoked when the system
configuration matches the criteria for entering the target low-power
state of the platform. In particular, this means that all devices
should be suspended and in low-power states already when that function
is invoked.
This is not the case currently, however, because Function 5 of the
LPS0 _DSM is invoked by it before the "noirq" phase of device suspend,
which means that some devices may not have been put into low-power
states yet at that point. That is a consequence of the previous
design of the suspend-to-idle flow that allowed the "noirq" phase of
device suspend and the "noirq" phase of device resume to be carried
out for multiple times while "suspended" (if any spurious wakeup
events were detected) and the point of the LPS0 _DSM Function 5
invocation was chosen so as to call it (and LPS0 _DSM Function 6
analogously) once per suspend-resume cycle (regardless of how many
times the "noirq" phases of device suspend and resume were carried
out while "suspended").
Now that the suspend-to-idle flow has been redesigned to carry out
the "noirq" phases of device suspend and resume once in each cycle,
the code can be reordered to follow the specification that it is
based on more closely.
For this purpose, add ->prepare_late and ->restore_early platform
callbacks for suspend-to-idle, to be executed, respectively, after
the "noirq" phase of suspending devices and before the "noirq"
phase of resuming them and make ACPI use them for the invocation
of LPS0 _DSM functions as appropriate.
While at it, move the LPS0 entry requirements check to be made
before invoking Functions 3 and 5 of the LPS0 _DSM (also once
per cycle) as follows from the specification [1].
Link: https://uefi.org/sites/default/files/resources/Intel_ACPI_Low_Power_S0_Idle.pdf # [1]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Userspace can get suspend stats from the suspend stats debugfs node.
Since debugfs doesn't have stable ABI, expose suspend stats in
sysfs under /sys/power/suspend_stats.
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
After previous changes the suspend-to-idle code flow can be
integrated more tightly with the generic system suspend code flow
by making suspend_enter() call s2idle_loop() later and removing
the direct invocations of dpm_noirq_begin(),
dpm_noirq_suspend_devices(), dpm_noirq_end(), and
dpm_noirq_resume_devices() from the latter, so do that.
This change is not expected to alter functionality.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
After commit 33e4f80ee6 ("ACPI / PM: Ignore spurious SCI wakeups
from suspend-to-idle") the "noirq" phases of device suspend and
resume may run for multiple times during suspend-to-idle, if there
are spurious system wakeup events while suspended. However, this
is complicated and fragile and actually unnecessary.
The main reason for doing this is that on some systems the EC may
signal system wakeup events (power button events, for example) as
well as events that should not cause the system to resume (spurious
system wakeup events). Thus, in order to determine whether or not
a given event signaled by the EC while suspended is a proper system
wakeup one, the EC GPE needs to be dispatched and to start with that
was achieved by allowing the ACPI SCI action handler to run, which
was only possible after calling resume_device_irqs().
However, dispatching the EC GPE this way turned out to take too much
time in some cases and some EC events might be missed due to that, so
commit 68e2201185 ("ACPI: EC: Dispatch the EC GPE directly on
s2idle wake") started to dispatch the EC GPE right after a wakeup
event has been detected, so in fact the full ACPI SCI action handler
doesn't need to run any more to deal with the wakeups coming from the
EC.
Use this observation to simplify the suspend-to-idle control flow
so that the "noirq" phases of device suspend and resume are each
run only once in every suspend-to-idle cycle, which is reported to
significantly reduce power drawn by some systems when suspended to
idle (by allowing them to reach a deep platform-wide low-power state
through the suspend-to-idle flow). [What appears to happen is that
the "noirq" resume of devices after a spurious EC wakeup brings some
devices into a state in which they prevent the platform from reaching
the deep low-power state going forward, even after a subsequent
"noirq" suspend phase, and on some systems the EC triggers such
wakeups already when the "noirq" suspend of devices is running for
the first time in the given suspend/resume cycle, so the platform
cannot reach the deep low-power state at all.]
First, make acpi_s2idle_wake() use the acpi_ec_dispatch_gpe() return
value to determine whether or not the wakeup may have been triggered
by the EC (in which case the system wakeup is canceled and ACPI
events are processed in order to determine whether or not the event
is a proper system wakeup one) and use rearm_wake_irq() (introduced
by a previous change) in it to rearm the ACPI SCI for system wakeup
detection in case the system will remain suspended.
Second, drop acpi_s2idle_sync(), which is not needed any more, and
the corresponding global platform suspend-to-idle callback.
Next, drop the pm_wakeup_pending() check (which is an optimization
only) from __device_suspend_noirq() to prevent it from returning
errors on system wakeups occurring before the "noirq" phase of
device suspend is complete (as in the case of suspend-to-idle it is
not known whether or not these wakeups are suprious at that point),
in order to avoid having to carry out a "noirq" resume of devices
on a spurious system wakeup.
Finally, change the code flow in s2idle_loop() to (1) run the
"noirq" suspend of devices once before starting the loop, (2) check
for spurious EC wakeups (via the platform ->wake callback) for the
first time before calling s2idle_enter(), and (3) run the "noirq"
resume of devices once after leaving the loop.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
- Improve the handling of shared ACPI power resources in the PCI
bus type layer (Mika Westerberg).
- Make the PCI layer take link delays required by the PCIe spec
into account as appropriate and avoid polling devices in D3cold
for PME (Mika Westerberg).
- Fix some corner case issues in ACPI device power management and
in the PCI bus type layer, optimiza and clean up the handling of
runtime-suspended PCI devices during system-wide transitions to
sleep states (Rafael Wysocki).
- Rework hibernation handling in the ACPI core and the PCI bus type
to resume runtime-suspended devices before hibernation (which
allows some functional problems to be avoided) and fix some ACPI
power management issues related to hiberation (Rafael Wysocki).
- Extend the operating performance points (OPP) framework to support
a wider range of devices (Rajendra Nayak, Stehpen Boyd).
- Fix issues related to genpd_virt_devs and issues with platforms
using the set_opp() callback in the OPP framework (Viresh Kumar,
Dmitry Osipenko).
- Add new cpufreq driver for Raspberry Pi (Nicolas Saenz Julienne).
- Add new cpufreq driver for imx8m and imx7d chips (Leonard Crestez).
- Fix and clean up the pcc-cpufreq, brcmstb-avs-cpufreq, s5pv210,
and armada-37xx cpufreq drivers (David Arcari, Florian Fainelli,
Paweł Chmiel, YueHaibing).
- Clean up and fix the cpufreq core (Viresh Kumar, Daniel Lezcano).
- Fix minor issue in the ACPI system sleep support code and export
one function from it (Lenny Szubowicz, Dexuan Cui).
- Clean up assorted pieces of PM code and documentation (Kefeng Wang,
Andy Shevchenko, Bart Van Assche, Greg Kroah-Hartman, Fuqian Huang,
Geert Uytterhoeven, Mathieu Malaterre, Rafael Wysocki).
- Update the pm-graph utility to v5.4 (Todd Brandt).
- Fix and clean up the cpupower utility (Abhishek Goel, Nick Black).
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Merge tag 'pm-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These update PCI and ACPI power management (improved handling of ACPI
power resources and PCIe link delays, fixes related to corner cases,
hibernation handling rework), fix and extend the operating performance
points (OPP) framework, add new cpufreq drivers for Raspberry Pi and
imx8m chips, update some other cpufreq drivers, clean up assorted
pieces of PM code and documentation and update tools.
Specifics:
- Improve the handling of shared ACPI power resources in the PCI bus
type layer (Mika Westerberg).
- Make the PCI layer take link delays required by the PCIe spec into
account as appropriate and avoid polling devices in D3cold for PME
(Mika Westerberg).
- Fix some corner case issues in ACPI device power management and in
the PCI bus type layer, optimiza and clean up the handling of
runtime-suspended PCI devices during system-wide transitions to
sleep states (Rafael Wysocki).
- Rework hibernation handling in the ACPI core and the PCI bus type
to resume runtime-suspended devices before hibernation (which
allows some functional problems to be avoided) and fix some ACPI
power management issues related to hiberation (Rafael Wysocki).
- Extend the operating performance points (OPP) framework to support
a wider range of devices (Rajendra Nayak, Stehpen Boyd).
- Fix issues related to genpd_virt_devs and issues with platforms
using the set_opp() callback in the OPP framework (Viresh Kumar,
Dmitry Osipenko).
- Add new cpufreq driver for Raspberry Pi (Nicolas Saenz Julienne).
- Add new cpufreq driver for imx8m and imx7d chips (Leonard Crestez).
- Fix and clean up the pcc-cpufreq, brcmstb-avs-cpufreq, s5pv210, and
armada-37xx cpufreq drivers (David Arcari, Florian Fainelli, Paweł
Chmiel, YueHaibing).
- Clean up and fix the cpufreq core (Viresh Kumar, Daniel Lezcano).
- Fix minor issue in the ACPI system sleep support code and export
one function from it (Lenny Szubowicz, Dexuan Cui).
- Clean up assorted pieces of PM code and documentation (Kefeng Wang,
Andy Shevchenko, Bart Van Assche, Greg Kroah-Hartman, Fuqian Huang,
Geert Uytterhoeven, Mathieu Malaterre, Rafael Wysocki).
- Update the pm-graph utility to v5.4 (Todd Brandt).
- Fix and clean up the cpupower utility (Abhishek Goel, Nick Black)"
* tag 'pm-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (57 commits)
ACPI: PM: Make acpi_sleep_state_supported() non-static
PM: sleep: Drop dev_pm_skip_next_resume_phases()
ACPI: PM: Unexport acpi_device_get_power()
Documentation: ABI: power: Add missing newline at end of file
ACPI: PM: Drop unused function and function header
ACPI: PM: Introduce "poweroff" callbacks for ACPI PM domain and LPSS
ACPI: PM: Simplify and fix PM domain hibernation callbacks
PCI: PM: Simplify bus-level hibernation callbacks
PM: ACPI/PCI: Resume all devices during hibernation
cpufreq: Avoid calling cpufreq_verify_current_freq() from handle_update()
cpufreq: Consolidate cpufreq_update_current_freq() and __cpufreq_get()
kernel: power: swap: use kzalloc() instead of kmalloc() followed by memset()
cpufreq: Don't skip frequency validation for has_target() drivers
PCI: PM/ACPI: Refresh all stale power state data in pci_pm_complete()
PCI / ACPI: Add _PR0 dependent devices
ACPI / PM: Introduce concept of a _PR0 dependent device
PCI / ACPI: Use cached ACPI device state to get PCI device power state
ACPI: PM: Allow transitions to D0 to occur in special cases
ACPI: PM: Avoid evaluating _PS3 on transitions from D3hot to D3cold
cpufreq: Use has_target() instead of !setpolicy
...
Pull scheduler updates from Ingo Molnar:
- Remove the unused per rq load array and all its infrastructure, by
Dietmar Eggemann.
- Add utilization clamping support by Patrick Bellasi. This is a
refinement of the energy aware scheduling framework with support for
boosting of interactive and capping of background workloads: to make
sure critical GUI threads get maximum frequency ASAP, and to make
sure background processing doesn't unnecessarily move to cpufreq
governor to higher frequencies and less energy efficient CPU modes.
- Add the bare minimum of tracepoints required for LISA EAS regression
testing, by Qais Yousef - which allows automated testing of various
power management features, including energy aware scheduling.
- Restructure the former tsk_nr_cpus_allowed() facility that the -rt
kernel used to modify the scheduler's CPU affinity logic such as
migrate_disable() - introduce the task->cpus_ptr value instead of
taking the address of &task->cpus_allowed directly - by Sebastian
Andrzej Siewior.
- Misc optimizations, fixes, cleanups and small enhancements - see the
Git log for details.
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
sched/uclamp: Add uclamp support to energy_compute()
sched/uclamp: Add uclamp_util_with()
sched/cpufreq, sched/uclamp: Add clamps for FAIR and RT tasks
sched/uclamp: Set default clamps for RT tasks
sched/uclamp: Reset uclamp values on RESET_ON_FORK
sched/uclamp: Extend sched_setattr() to support utilization clamping
sched/core: Allow sched_setattr() to use the current policy
sched/uclamp: Add system default clamps
sched/uclamp: Enforce last task's UCLAMP_MAX
sched/uclamp: Add bucket local max tracking
sched/uclamp: Add CPU's clamp buckets refcounting
sched/fair: Rename weighted_cpuload() to cpu_runnable_load()
sched/debug: Export the newly added tracepoints
sched/debug: Add sched_overutilized tracepoint
sched/debug: Add new tracepoint to track PELT at se level
sched/debug: Add new tracepoints to track PELT at rq level
sched/debug: Add a new sched_trace_*() helper functions
sched/autogroup: Make autogroup_path() always available
sched/wait: Deduplicate code with do-while
sched/topology: Remove unused 'sd' parameter from arch_scale_cpu_capacity()
...
* pm-sleep:
PM: sleep: Drop dev_pm_skip_next_resume_phases()
ACPI: PM: Drop unused function and function header
ACPI: PM: Introduce "poweroff" callbacks for ACPI PM domain and LPSS
ACPI: PM: Simplify and fix PM domain hibernation callbacks
PCI: PM: Simplify bus-level hibernation callbacks
PM: ACPI/PCI: Resume all devices during hibernation
kernel: power: swap: use kzalloc() instead of kmalloc() followed by memset()
PM: sleep: Update struct wakeup_source documentation
drivers: base: power: remove wakeup_sources_stats_dentry variable
PM: suspend: Rename pm_suspend_via_s2idle()
PM: sleep: Show how long dpm_suspend_start() and dpm_suspend_end() take
PM: hibernate: powerpc: Expose pfn_is_nosave() prototype
Use zeroing allocator instead of using allocator
followed with memset with 0
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There are platforms that do not call pm_set_suspend_via_firmware(),
so pm_suspend_via_firmware() returns 'false' on them, but the power
states of PCI devices (PCIe ports in particular) are changed as a
result of powering down core platform components during system-wide
suspend. Thus the pm_suspend_via_firmware() checks in
pci_pm_suspend_noirq() and pci_pm_resume_noirq() introduced by
commit 3e26c5feed ("PCI: PM: Skip devices in D0 for suspend-to-
idle") are not sufficient to determine that devices left in D0
during suspend will remain in D0 during resume and so the bus-level
power management can be skipped for them.
For this reason, introduce a new global suspend flag,
PM_SUSPEND_FLAG_NO_PLATFORM, set it for suspend-to-idle only
and replace the pm_suspend_via_firmware() checks mentioned above
with checks against this flag.
Fixes: 3e26c5feed ("PCI: PM: Skip devices in D0 for suspend-to-idle")
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Based on 1 normalized pattern(s):
this file is released under the gpl v2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 3 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204655.103854853@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The name of pm_suspend_via_s2idle() is confusing, as it doesn't
reflect the purpose of the function precisely enough and it is
very similar to pm_suspend_via_firmware(), which has a different
purpose, so rename it as pm_suspend_default_s2idle() and update
its only caller, i8042_register_ports(), accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Convert the PM documents to ReST, in order to allow them to
build with Sphinx.
The conversion is actually:
- add blank lines and indentation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Srivatsa S. Bhat (VMware) <srivatsa@csail.mit.edu>
The declaration for pfn_is_nosave is only available in
kernel/power/power.h. Since this function can be override in arch,
expose it globally. Having a prototype will make sure to avoid warning
(sometime treated as error with W=1) such as:
arch/powerpc/kernel/suspend.c:18:5: error: no previous prototype for 'pfn_is_nosave' [-Werror=missing-prototypes]
This moves the declaration into a globally visible header file and add
missing include to avoid a warning on powerpc.
Also remove the duplicated prototypes since not required anymore.
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Another round of SPDX header file fixes for 5.2-rc4
These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being
added, based on the text in the files. We are slowly chipping away at
the 700+ different ways people tried to write the license text. All of
these were reviewed on the spdx mailing list by a number of different
people.
We now have over 60% of the kernel files covered with SPDX tags:
$ ./scripts/spdxcheck.py -v 2>&1 | grep Files
Files checked: 64533
Files with SPDX: 40392
Files with errors: 0
I think the majority of the "easy" fixups are now done, it's now the
start of the longer-tail of crazy variants to wade through.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull yet more SPDX updates from Greg KH:
"Another round of SPDX header file fixes for 5.2-rc4
These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being
added, based on the text in the files. We are slowly chipping away at
the 700+ different ways people tried to write the license text. All of
these were reviewed on the spdx mailing list by a number of different
people.
We now have over 60% of the kernel files covered with SPDX tags:
$ ./scripts/spdxcheck.py -v 2>&1 | grep Files
Files checked: 64533
Files with SPDX: 40392
Files with errors: 0
I think the majority of the "easy" fixups are now done, it's now the
start of the longer-tail of crazy variants to wade through"
* tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (159 commits)
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 449
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 448
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 444
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 443
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 442
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 436
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 435
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 434
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 433
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 432
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 431
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 430
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 429
...
Based on 1 normalized pattern(s):
this file is released under the gplv2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 68 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190114.292346262@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As explained in
0cc3cd2165 ("cpu/hotplug: Boot HT siblings at least once")
we always, no matter what, have to bring up x86 HT siblings during boot at
least once in order to avoid first MCE bringing the system to its knees.
That means that whenever 'nosmt' is supplied on the kernel command-line,
all the HT siblings are as a result sitting in mwait or cpudile after
going through the online-offline cycle at least once.
This causes a serious issue though when a kernel, which saw 'nosmt' on its
commandline, is going to perform resume from hibernation: if the resume
from the hibernated image is successful, cr3 is flipped in order to point
to the address space of the kernel that is being resumed, which in turn
means that all the HT siblings are all of a sudden mwaiting on address
which is no longer valid.
That results in triple fault shortly after cr3 is switched, and machine
reboots.
Fix this by always waking up all the SMT siblings before initiating the
'restore from hibernation' process; this guarantees that all the HT
siblings will be properly carried over to the resumed kernel waiting in
resume_play_dead(), and acted upon accordingly afterwards, based on the
target kernel configuration.
Symmetricaly, the resumed kernel has to push the SMT siblings to mwait
again in case it has SMT disabled; this means it has to online all
the siblings when resuming (so that they come out of hlt) and offline
them again to let them reach mwait.
Cc: 4.19+ <stable@vger.kernel.org> # v4.19+
Debugged-by: Thomas Gleixner <tglx@linutronix.de>
Fixes: 0cc3cd2165 ("cpu/hotplug: Boot HT siblings at least once")
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add kerneldoc comments to pm_suspend_via_firmware(),
pm_resume_via_firmware() and pm_suspend_via_s2idle()
to explain what they do.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On systems with ACPI platform firmware the last stage of hibernation
is analogous to system suspend to S3 (suspend-to-RAM), so it should
be handled analogously. In particular, pm_suspend_via_firmware()
should return 'true' in that stage to let the callers of it know that
control will be passed to the platform firmware going forward, so
pm_set_suspend_via_firmware() needs to be called then in analogy with
acpi_suspend_begin().
However, the platform hibernation ->begin() callback is invoked
during the "freeze" transition (before creating a snapshot image of
system memory) as well as during the "hibernate" transition which is
the last stage of it and pm_set_suspend_via_firmware() should be
invoked by that callback in the latter stage only.
In order to implement that redefine the hibernation ->begin()
callback to take a pm_message_t argument to indicate which stage
of hibernation is taking place and rework acpi_hibernation_begin()
and acpi_hibernation_begin_old() to take it into account as needed.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
