Commit Graph

454 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
1b71a028a2 Merge 5.10.84 into android12-5.10-lts
Changes in 5.10.84
	NFSv42: Fix pagecache invalidation after COPY/CLONE
	can: j1939: j1939_tp_cmd_recv(): check the dst address of TP.CM_BAM
	ovl: simplify file splice
	ovl: fix deadlock in splice write
	gfs2: release iopen glock early in evict
	gfs2: Fix length of holes reported at end-of-file
	powerpc/pseries/ddw: Revert "Extend upper limit for huge DMA window for persistent memory"
	drm/sun4i: fix unmet dependency on RESET_CONTROLLER for PHY_SUN6I_MIPI_DPHY
	mac80211: do not access the IV when it was stripped
	net/smc: Transfer remaining wait queue entries during fallback
	atlantic: Fix OOB read and write in hw_atl_utils_fw_rpc_wait
	net: return correct error code
	platform/x86: thinkpad_acpi: Add support for dual fan control
	platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep
	s390/setup: avoid using memblock_enforce_memory_limit
	btrfs: check-integrity: fix a warning on write caching disabled disk
	thermal: core: Reset previous low and high trip during thermal zone init
	scsi: iscsi: Unblock session then wake up error handler
	drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again
	drm/amd/amdgpu: fix potential memleak
	ata: ahci: Add Green Sardine vendor ID as board_ahci_mobile
	ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
	ipv6: check return value of ipv6_skip_exthdr
	net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound
	net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock()
	perf inject: Fix ARM SPE handling
	perf hist: Fix memory leak of a perf_hpp_fmt
	perf report: Fix memory leaks around perf_tip()
	net/smc: Avoid warning of possible recursive locking
	ACPI: Add stubs for wakeup handler functions
	vrf: Reset IPCB/IP6CB when processing outbound pkts in vrf dev xmit
	kprobes: Limit max data_size of the kretprobe instances
	rt2x00: do not mark device gone on EPROTO errors during start
	ipmi: Move remove_work to dedicated workqueue
	cpufreq: Fix get_cpu_device() failure in add_cpu_dev_symlink()
	s390/pci: move pseudo-MMIO to prevent MIO overlap
	fget: check that the fd still exists after getting a ref to it
	sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
	sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl
	ipv6: fix memory leak in fib6_rule_suppress
	drm/amd/display: Allow DSC on supported MST branch devices
	KVM: Disallow user memslot with size that exceeds "unsigned long"
	KVM: nVMX: Flush current VPID (L1 vs. L2) for KVM_REQ_TLB_FLUSH_GUEST
	KVM: x86: Use a stable condition around all VT-d PI paths
	KVM: arm64: Avoid setting the upper 32 bits of TCR_EL2 and CPTR_EL2 to 1
	KVM: X86: Use vcpu->arch.walk_mmu for kvm_mmu_invlpg()
	tracing/histograms: String compares should not care about signed values
	wireguard: selftests: increase default dmesg log size
	wireguard: allowedips: add missing __rcu annotation to satisfy sparse
	wireguard: selftests: actually test for routing loops
	wireguard: selftests: rename DEBUG_PI_LIST to DEBUG_PLIST
	wireguard: device: reset peer src endpoint when netns exits
	wireguard: receive: use ring buffer for incoming handshakes
	wireguard: receive: drop handshakes if queue lock is contended
	wireguard: ratelimiter: use kvcalloc() instead of kvzalloc()
	i2c: stm32f7: flush TX FIFO upon transfer errors
	i2c: stm32f7: recover the bus on access timeout
	i2c: stm32f7: stop dma transfer in case of NACK
	i2c: cbus-gpio: set atomic transfer callback
	natsemi: xtensa: fix section mismatch warnings
	tcp: fix page frag corruption on page fault
	net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
	net: mpls: Fix notifications when deleting a device
	siphash: use _unaligned version by default
	arm64: ftrace: add missing BTIs
	net/mlx4_en: Fix an use-after-free bug in mlx4_en_try_alloc_resources()
	selftests: net: Correct case name
	mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode
	ASoC: tegra: Fix wrong value type in ADMAIF
	ASoC: tegra: Fix wrong value type in I2S
	ASoC: tegra: Fix wrong value type in DMIC
	ASoC: tegra: Fix wrong value type in DSPK
	ASoC: tegra: Fix kcontrol put callback in ADMAIF
	ASoC: tegra: Fix kcontrol put callback in I2S
	ASoC: tegra: Fix kcontrol put callback in DMIC
	ASoC: tegra: Fix kcontrol put callback in DSPK
	ASoC: tegra: Fix kcontrol put callback in AHUB
	rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle()
	rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()
	ALSA: intel-dsp-config: add quirk for CML devices based on ES8336 codec
	net: usb: lan78xx: lan78xx_phy_init(): use PHY_POLL instead of "0" if no IRQ is available
	net: marvell: mvpp2: Fix the computation of shared CPUs
	dpaa2-eth: destroy workqueue at the end of remove function
	net: annotate data-races on txq->xmit_lock_owner
	ipv4: convert fib_num_tclassid_users to atomic_t
	net/smc: fix wrong list_del in smc_lgr_cleanup_early
	net/rds: correct socket tunable error in rds_tcp_tune()
	net/smc: Keep smc_close_final rc during active close
	drm/msm/a6xx: Allocate enough space for GMU registers
	drm/msm: Do hw_init() before capturing GPU state
	atlantic: Increase delay for fw transactions
	atlatnic: enable Nbase-t speeds with base-t
	atlantic: Fix to display FW bundle version instead of FW mac version.
	atlantic: Add missing DIDs and fix 115c.
	Remove Half duplex mode speed capabilities.
	atlantic: Fix statistics logic for production hardware
	atlantic: Remove warn trace message.
	KVM: x86/pmu: Fix reserved bits for AMD PerfEvtSeln register
	KVM: VMX: Set failure code in prepare_vmcs02()
	x86/sev: Fix SEV-ES INS/OUTS instructions for word, dword, and qword
	x86/entry: Use the correct fence macro after swapgs in kernel CR3
	x86/xen: Add xenpv_restore_regs_and_return_to_usermode()
	sched/uclamp: Fix rq->uclamp_max not set on first enqueue
	x86/pv: Switch SWAPGS to ALTERNATIVE
	x86/entry: Add a fence for kernel entry SWAPGS in paranoid_entry()
	parisc: Fix KBUILD_IMAGE for self-extracting kernel
	parisc: Fix "make install" on newer debian releases
	vgacon: Propagate console boot parameters before calling `vc_resize'
	xhci: Fix commad ring abort, write all 64 bits to CRCR register.
	USB: NO_LPM quirk Lenovo Powered USB-C Travel Hub
	usb: typec: tcpm: Wait in SNK_DEBOUNCED until disconnect
	x86/tsc: Add a timer to make sure TSC_adjust is always checked
	x86/tsc: Disable clocksource watchdog for TSC on qualified platorms
	x86/64/mm: Map all kernel memory into trampoline_pgd
	tty: serial: msm_serial: Deactivate RX DMA for polling support
	serial: pl011: Add ACPI SBSA UART match id
	serial: tegra: Change lower tolerance baud rate limit for tegra20 and tegra30
	serial: core: fix transmit-buffer reset and memleak
	serial: 8250_pci: Fix ACCES entries in pci_serial_quirks array
	serial: 8250_pci: rewrite pericom_do_set_divisor()
	serial: 8250: Fix RTS modem control while in rs485 mode
	iwlwifi: mvm: retry init flow if failed
	parisc: Mark cr16 CPU clocksource unstable on all SMP machines
	net/tls: Fix authentication failure in CCM mode
	ipmi: msghandler: Make symbol 'remove_work_wq' static
	Linux 5.10.84

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iad592da28c6425dea7dca35b229d14c44edb412d
2021-12-08 09:41:05 +01:00
Mario Limonciello
136cabf157 ACPI: Add stubs for wakeup handler functions
[ Upstream commit e9380df851878cee71df5a1c7611584421527f7e ]

The commit ddfd9dcf27 ("ACPI: PM: Add acpi_[un]register_wakeup_handler()")
added new functions for drivers to use during the s2idle wakeup path, but
didn't add stubs for when CONFIG_ACPI wasn't set.

Add those stubs in for other drivers to be able to use.

Fixes: ddfd9dcf27 ("ACPI: PM: Add acpi_[un]register_wakeup_handler()")
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20211101014853.6177-1-mario.limonciello@amd.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-12-08 09:03:20 +01:00
Greg Kroah-Hartman
e92949726c Merge 5.10.28 into android12-5.10
Changes in 5.10.28
	arm64: mm: correct the inside linear map range during hotplug check
	bpf: Fix fexit trampoline.
	virtiofs: Fail dax mount if device does not support it
	ext4: shrink race window in ext4_should_retry_alloc()
	ext4: fix bh ref count on error paths
	fs: nfsd: fix kconfig dependency warning for NFSD_V4
	rpc: fix NULL dereference on kmalloc failure
	iomap: Fix negative assignment to unsigned sis->pages in iomap_swapfile_activate
	ASoC: rt1015: fix i2c communication error
	ASoC: rt5640: Fix dac- and adc- vol-tlv values being off by a factor of 10
	ASoC: rt5651: Fix dac- and adc- vol-tlv values being off by a factor of 10
	ASoC: sgtl5000: set DAP_AVC_CTRL register to correct default value on probe
	ASoC: es8316: Simplify adc_pga_gain_tlv table
	ASoC: soc-core: Prevent warning if no DMI table is present
	ASoC: cs42l42: Fix Bitclock polarity inversion
	ASoC: cs42l42: Fix channel width support
	ASoC: cs42l42: Fix mixer volume control
	ASoC: cs42l42: Always wait at least 3ms after reset
	NFSD: fix error handling in NFSv4.0 callbacks
	kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing
	vhost: Fix vhost_vq_reset()
	io_uring: fix ->flags races by linked timeouts
	scsi: st: Fix a use after free in st_open()
	scsi: qla2xxx: Fix broken #endif placement
	staging: comedi: cb_pcidas: fix request_irq() warn
	staging: comedi: cb_pcidas64: fix request_irq() warn
	ASoC: rt5659: Update MCLK rate in set_sysclk()
	ASoC: rt711: add snd_soc_component remove callback
	thermal/core: Add NULL pointer check before using cooling device stats
	locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling
	locking/ww_mutex: Fix acquire/release imbalance in ww_acquire_init()/ww_acquire_fini()
	nvmet-tcp: fix kmap leak when data digest in use
	io_uring: imply MSG_NOSIGNAL for send[msg]()/recv[msg]() calls
	static_call: Align static_call_is_init() patching condition
	ext4: do not iput inode under running transaction in ext4_rename()
	io_uring: call req_set_fail_links() on short send[msg]()/recv[msg]() with MSG_WAITALL
	net: mvpp2: fix interrupt mask/unmask skip condition
	flow_dissector: fix TTL and TOS dissection on IPv4 fragments
	can: dev: move driver related infrastructure into separate subdir
	net: introduce CAN specific pointer in the struct net_device
	can: tcan4x5x: fix max register value
	brcmfmac: clear EAP/association status bits on linkdown events
	ath11k: add ieee80211_unregister_hw to avoid kernel crash caused by NULL pointer
	rtw88: coex: 8821c: correct antenna switch function
	netdevsim: dev: Initialize FIB module after debugfs
	iwlwifi: pcie: don't disable interrupts for reg_lock
	ath10k: hold RCU lock when calling ieee80211_find_sta_by_ifaddr()
	net: ethernet: aquantia: Handle error cleanup of start on open
	appletalk: Fix skb allocation size in loopback case
	net: ipa: remove two unused register definitions
	net: ipa: fix register write command validation
	net: wan/lmc: unregister device when no matching device is found
	net: 9p: advance iov on empty read
	bpf: Remove MTU check in __bpf_skb_max_len
	ACPI: tables: x86: Reserve memory occupied by ACPI tables
	ACPI: processor: Fix CPU0 wakeup in acpi_idle_play_dead()
	ALSA: usb-audio: Apply sample rate quirk to Logitech Connect
	ALSA: hda: Re-add dropped snd_poewr_change_state() calls
	ALSA: hda: Add missing sanity checks in PM prepare/complete callbacks
	ALSA: hda/realtek: fix a determine_headset_type issue for a Dell AIO
	ALSA: hda/realtek: call alc_update_headset_mode() in hp_automute_hook
	ALSA: hda/realtek: fix mute/micmute LEDs for HP 640 G8
	xtensa: fix uaccess-related livelock in do_page_fault
	xtensa: move coprocessor_flush to the .text section
	KVM: SVM: load control fields from VMCB12 before checking them
	KVM: SVM: ensure that EFER.SVME is set when running nested guest or on nested vmexit
	PM: runtime: Fix race getting/putting suppliers at probe
	PM: runtime: Fix ordering in pm_runtime_get_suppliers()
	tracing: Fix stack trace event size
	s390/vdso: copy tod_steering_delta value to vdso_data page
	s390/vdso: fix tod_steering_delta type
	mm: fix race by making init_zero_pfn() early_initcall
	drm/amdkfd: dqm fence memory corruption
	drm/amdgpu: fix offset calculation in amdgpu_vm_bo_clear_mappings()
	drm/amdgpu: check alignment on CPU page for bo map
	reiserfs: update reiserfs_xattrs_initialized() condition
	drm/imx: fix memory leak when fails to init
	drm/tegra: dc: Restore coupling of display controllers
	drm/tegra: sor: Grab runtime PM reference across reset
	vfio/nvlink: Add missing SPAPR_TCE_IOMMU depends
	pinctrl: rockchip: fix restore error in resume
	extcon: Add stubs for extcon_register_notifier_all() functions
	extcon: Fix error handling in extcon_dev_register
	firmware: stratix10-svc: reset COMMAND_RECONFIG_FLAG_PARTIAL to 0
	usb: dwc3: pci: Enable dis_uX_susphy_quirk for Intel Merrifield
	video: hyperv_fb: Fix a double free in hvfb_probe
	firewire: nosy: Fix a use-after-free bug in nosy_ioctl()
	usbip: vhci_hcd fix shift out-of-bounds in vhci_hub_control()
	USB: quirks: ignore remote wake-up on Fibocom L850-GL LTE modem
	usb: musb: Fix suspend with devices connected for a64
	usb: xhci-mtk: fix broken streams issue on 0.96 xHCI
	cdc-acm: fix BREAK rx code path adding necessary calls
	USB: cdc-acm: untangle a circular dependency between callback and softint
	USB: cdc-acm: downgrade message to debug
	USB: cdc-acm: fix double free on probe failure
	USB: cdc-acm: fix use-after-free after probe failure
	usb: gadget: udc: amd5536udc_pci fix null-ptr-dereference
	usb: dwc2: Fix HPRT0.PrtSusp bit setting for HiKey 960 board.
	usb: dwc2: Prevent core suspend when port connection flag is 0
	usb: dwc3: qcom: skip interconnect init for ACPI probe
	usb: dwc3: gadget: Clear DEP flags after stop transfers in ep disable
	soc: qcom-geni-se: Cleanup the code to remove proxy votes
	staging: rtl8192e: Fix incorrect source in memcpy()
	staging: rtl8192e: Change state information from u16 to u8
	driver core: clear deferred probe reason on probe retry
	drivers: video: fbcon: fix NULL dereference in fbcon_cursor()
	riscv: evaluate put_user() arg before enabling user access
	Revert "kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing"
	bpf: Use NOP_ATOMIC5 instead of emit_nops(&prog, 5) for BPF_TRAMP_F_CALL_ORIG
	Linux 5.10.28

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ifdbbeda8de3ee22a7aa3f5d3b10becf0aba1a124
2021-04-09 09:29:17 +02:00
Rafael J. Wysocki
cdd192a20b ACPI: tables: x86: Reserve memory occupied by ACPI tables
commit 1a1c130ab7575498eed5bcf7220037ae09cd1f8a upstream.

The following problem has been reported by George Kennedy:

 Since commit 7fef431be9 ("mm/page_alloc: place pages to tail
 in __free_pages_core()") the following use after free occurs
 intermittently when ACPI tables are accessed.

 BUG: KASAN: use-after-free in ibft_init+0x134/0xc49
 Read of size 4 at addr ffff8880be453004 by task swapper/0/1
 CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.12.0-rc1-7a7fd0d #1
 Call Trace:
  dump_stack+0xf6/0x158
  print_address_description.constprop.9+0x41/0x60
  kasan_report.cold.14+0x7b/0xd4
  __asan_report_load_n_noabort+0xf/0x20
  ibft_init+0x134/0xc49
  do_one_initcall+0xc4/0x3e0
  kernel_init_freeable+0x5af/0x66b
  kernel_init+0x16/0x1d0
  ret_from_fork+0x22/0x30

 ACPI tables mapped via kmap() do not have their mapped pages
 reserved and the pages can be "stolen" by the buddy allocator.

Apparently, on the affected system, the ACPI table in question is
not located in "reserved" memory, like ACPI NVS or ACPI Data, that
will not be used by the buddy allocator, so the memory occupied by
that table has to be explicitly reserved to prevent the buddy
allocator from using it.

In order to address this problem, rearrange the initialization of the
ACPI tables on x86 to locate the initial tables earlier and reserve
the memory occupied by them.

The other architectures using ACPI should not be affected by this
change.

Link: https://lore.kernel.org/linux-acpi/1614802160-29362-1-git-send-email-george.kennedy@oracle.com/
Reported-by: George Kennedy <george.kennedy@oracle.com>
Tested-by: George Kennedy <george.kennedy@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: 5.10+ <stable@vger.kernel.org> # 5.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-07 15:00:08 +02:00
Greg Kroah-Hartman
3ccfc59f82 Merge 5.10.24 into android12-5.10-lts
Changes in 5.10.24
	uapi: nfnetlink_cthelper.h: fix userspace compilation error
	powerpc/perf: Fix handling of privilege level checks in perf interrupt context
	powerpc/pseries: Don't enforce MSI affinity with kdump
	ethernet: alx: fix order of calls on resume
	crypto: mips/poly1305 - enable for all MIPS processors
	ath9k: fix transmitting to stations in dynamic SMPS mode
	net: Fix gro aggregation for udp encaps with zero csum
	net: check if protocol extracted by virtio_net_hdr_set_proto is correct
	net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
	net: l2tp: reduce log level of messages in receive path, add counter instead
	can: skb: can_skb_set_owner(): fix ref counting if socket was closed before setting skb ownership
	can: flexcan: assert FRZ bit in flexcan_chip_freeze()
	can: flexcan: enable RX FIFO after FRZ/HALT valid
	can: flexcan: invoke flexcan_chip_freeze() to enter freeze mode
	can: tcan4x5x: tcan4x5x_init(): fix initialization - clear MRAM before entering Normal Mode
	tcp: Fix sign comparison bug in getsockopt(TCP_ZEROCOPY_RECEIVE)
	tcp: add sanity tests to TCP_QUEUE_SEQ
	netfilter: nf_nat: undo erroneous tcp edemux lookup
	netfilter: x_tables: gpf inside xt_find_revision()
	net: always use icmp{,v6}_ndo_send from ndo_start_xmit
	net: phy: fix save wrong speed and duplex problem if autoneg is on
	selftests/bpf: Use the last page in test_snprintf_btf on s390
	selftests/bpf: No need to drop the packet when there is no geneve opt
	selftests/bpf: Mask bpf_csum_diff() return value to 16 bits in test_verifier
	samples, bpf: Add missing munmap in xdpsock
	libbpf: Clear map_info before each bpf_obj_get_info_by_fd
	ibmvnic: Fix possibly uninitialized old_num_tx_queues variable warning.
	ibmvnic: always store valid MAC address
	mt76: dma: do not report truncated frames to mac80211
	powerpc/603: Fix protection of user pages mapped with PROT_NONE
	mount: fix mounting of detached mounts onto targets that reside on shared mounts
	cifs: return proper error code in statfs(2)
	Revert "mm, slub: consider rest of partial list if acquire_slab() fails"
	docs: networking: drop special stable handling
	net: dsa: tag_rtl4_a: fix egress tags
	sh_eth: fix TRSCER mask for SH771x
	net: enetc: don't overwrite the RSS indirection table when initializing
	net: enetc: take the MDIO lock only once per NAPI poll cycle
	net: enetc: fix incorrect TPID when receiving 802.1ad tagged packets
	net: enetc: don't disable VLAN filtering in IFF_PROMISC mode
	net: enetc: force the RGMII speed and duplex instead of operating in inband mode
	net: enetc: remove bogus write to SIRXIDR from enetc_setup_rxbdr
	net: enetc: keep RX ring consumer index in sync with hardware
	net: ethernet: mtk-star-emac: fix wrong unmap in RX handling
	net/mlx4_en: update moderation when config reset
	net: stmmac: fix incorrect DMA channel intr enable setting of EQoS v4.10
	nexthop: Do not flush blackhole nexthops when loopback goes down
	net: sched: avoid duplicates in classes dump
	net: mscc: ocelot: properly reject destination IP keys in VCAP IS1
	net: dsa: sja1105: fix SGMII PCS being forced to SPEED_UNKNOWN instead of SPEED_10
	net: usb: qmi_wwan: allow qmimux add/del with master up
	netdevsim: init u64 stats for 32bit hardware
	cipso,calipso: resolve a number of problems with the DOI refcounts
	net: stmmac: Fix VLAN filter delete timeout issue in Intel mGBE SGMII
	stmmac: intel: Fixes clock registration error seen for multiple interfaces
	net: lapbether: Remove netif_start_queue / netif_stop_queue
	net: davicom: Fix regulator not turned off on failed probe
	net: davicom: Fix regulator not turned off on driver removal
	net: enetc: allow hardware timestamping on TX queues with tc-etf enabled
	net: qrtr: fix error return code of qrtr_sendmsg()
	s390/qeth: fix memory leak after failed TX Buffer allocation
	r8169: fix r8168fp_adjust_ocp_cmd function
	ixgbe: fail to create xfrm offload of IPsec tunnel mode SA
	tools/resolve_btfids: Fix build error with older host toolchains
	perf build: Fix ccache usage in $(CC) when generating arch errno table
	net: stmmac: stop each tx channel independently
	net: stmmac: fix watchdog timeout during suspend/resume stress test
	net: stmmac: fix wrongly set buffer2 valid when sph unsupport
	ethtool: fix the check logic of at least one channel for RX/TX
	net: phy: make mdio_bus_phy_suspend/resume as __maybe_unused
	selftests: forwarding: Fix race condition in mirror installation
	mlxsw: spectrum_ethtool: Add an external speed to PTYS register
	perf traceevent: Ensure read cmdlines are null terminated.
	perf report: Fix -F for branch & mem modes
	net: hns3: fix query vlan mask value error for flow director
	net: hns3: fix bug when calculating the TCAM table info
	s390/cio: return -EFAULT if copy_to_user() fails again
	bnxt_en: reliably allocate IRQ table on reset to avoid crash
	gpiolib: acpi: Add ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER quirk
	gpiolib: acpi: Allow to find GpioInt() resource by name and index
	gpio: pca953x: Set IRQ type when handle Intel Galileo Gen 2
	gpio: fix gpio-device list corruption
	drm/compat: Clear bounce structures
	drm/amd/display: Add a backlight module option
	drm/amdgpu/display: use GFP_ATOMIC in dcn21_validate_bandwidth_fp()
	drm/amd/display: Fix nested FPU context in dcn21_validate_bandwidth()
	drm/amd/pm: bug fix for pcie dpm
	drm/amdgpu/display: simplify backlight setting
	drm/amdgpu/display: don't assert in set backlight function
	drm/amdgpu/display: handle aux backlight in backlight_get_brightness
	drm/shmem-helper: Check for purged buffers in fault handler
	drm/shmem-helper: Don't remove the offset in vm_area_struct pgoff
	drm: Use USB controller's DMA mask when importing dmabufs
	drm: meson_drv add shutdown function
	drm/shmem-helpers: vunmap: Don't put pages for dma-buf
	drm/i915: Wedge the GPU if command parser setup fails
	s390/cio: return -EFAULT if copy_to_user() fails
	s390/crypto: return -EFAULT if copy_to_user() fails
	qxl: Fix uninitialised struct field head.surface_id
	sh_eth: fix TRSCER mask for R7S9210
	media: usbtv: Fix deadlock on suspend
	media: rkisp1: params: fix wrong bits settings
	media: v4l: vsp1: Fix uif null pointer access
	media: v4l: vsp1: Fix bru null pointer access
	media: rc: compile rc-cec.c into rc-core
	cifs: fix credit accounting for extra channel
	net: hns3: fix error mask definition of flow director
	s390/qeth: don't replace a fully completed async TX buffer
	s390/qeth: remove QETH_QDIO_BUF_HANDLED_DELAYED state
	s390/qeth: improve completion of pending TX buffers
	s390/qeth: fix notification for pending buffers during teardown
	net: dsa: implement a central TX reallocation procedure
	net: dsa: tag_ksz: don't allocate additional memory for padding/tagging
	net: dsa: trailer: don't allocate additional memory for padding/tagging
	net: dsa: tag_qca: let DSA core deal with TX reallocation
	net: dsa: tag_ocelot: let DSA core deal with TX reallocation
	net: dsa: tag_mtk: let DSA core deal with TX reallocation
	net: dsa: tag_lan9303: let DSA core deal with TX reallocation
	net: dsa: tag_edsa: let DSA core deal with TX reallocation
	net: dsa: tag_brcm: let DSA core deal with TX reallocation
	net: dsa: tag_dsa: let DSA core deal with TX reallocation
	net: dsa: tag_gswip: let DSA core deal with TX reallocation
	net: dsa: tag_ar9331: let DSA core deal with TX reallocation
	net: dsa: tag_mtk: fix 802.1ad VLAN egress
	enetc: Fix unused var build warning for CONFIG_OF
	net: enetc: initialize RFS/RSS memories for unused ports too
	ath11k: peer delete synchronization with firmware
	ath11k: start vdev if a bss peer is already created
	ath11k: fix AP mode for QCA6390
	i2c: rcar: faster irq code to minimize HW race condition
	i2c: rcar: optimize cacheline to minimize HW race condition
	scsi: ufs: WB is only available on LUN #0 to #7
	udf: fix silent AED tagLocation corruption
	iommu/vt-d: Clear PRQ overflow only when PRQ is empty
	mmc: mxs-mmc: Fix a resource leak in an error handling path in 'mxs_mmc_probe()'
	mmc: mediatek: fix race condition between msdc_request_timeout and irq
	mmc: sdhci-iproc: Add ACPI bindings for the RPi
	Platform: OLPC: Fix probe error handling
	powerpc/pci: Add ppc_md.discover_phbs()
	spi: stm32: make spurious and overrun interrupts visible
	powerpc: improve handling of unrecoverable system reset
	powerpc/perf: Record counter overflow always if SAMPLE_IP is unset
	HID: logitech-dj: add support for the new lightspeed connection iteration
	powerpc/64: Fix stack trace not displaying final frame
	iommu/amd: Fix performance counter initialization
	clk: qcom: gdsc: Implement NO_RET_PERIPH flag
	sparc32: Limit memblock allocation to low memory
	sparc64: Use arch_validate_flags() to validate ADI flag
	Input: applespi - don't wait for responses to commands indefinitely.
	PCI: xgene-msi: Fix race in installing chained irq handler
	PCI: mediatek: Add missing of_node_put() to fix reference leak
	drivers/base: build kunit tests without structleak plugin
	PCI/LINK: Remove bandwidth notification
	ext4: don't try to processed freed blocks until mballoc is initialized
	kbuild: clamp SUBLEVEL to 255
	PCI: Fix pci_register_io_range() memory leak
	i40e: Fix memory leak in i40e_probe
	kasan: fix memory corruption in kasan_bitops_tags test
	s390/smp: __smp_rescan_cpus() - move cpumask away from stack
	drivers/base/memory: don't store phys_device in memory blocks
	sysctl.c: fix underflow value setting risk in vm_table
	scsi: libiscsi: Fix iscsi_prep_scsi_cmd_pdu() error handling
	scsi: target: core: Add cmd length set before cmd complete
	scsi: target: core: Prevent underflow for service actions
	clk: qcom: gpucc-msm8998: Add resets, cxc, fix flags on gpu_gx_gdsc
	mmc: sdhci: Update firmware interface API
	ARM: 9029/1: Make iwmmxt.S support Clang's integrated assembler
	ARM: assembler: introduce adr_l, ldr_l and str_l macros
	ARM: efistub: replace adrl pseudo-op with adr_l macro invocation
	ALSA: usb: Add Plantronics C320-M USB ctrl msg delay quirk
	ALSA: hda/hdmi: Cancel pending works before suspend
	ALSA: hda/conexant: Add quirk for mute LED control on HP ZBook G5
	ALSA: hda/ca0132: Add Sound BlasterX AE-5 Plus support
	ALSA: hda: Drop the BATCH workaround for AMD controllers
	ALSA: hda: Flush pending unsolicited events before suspend
	ALSA: hda: Avoid spurious unsol event handling during S3/S4
	ALSA: usb-audio: Fix "cannot get freq eq" errors on Dell AE515 sound bar
	ALSA: usb-audio: Apply the control quirk to Plantronics headsets
	ALSA: usb-audio: Disable USB autosuspend properly in setup_disable_autosuspend()
	ALSA: usb-audio: fix NULL ptr dereference in usb_audio_probe
	ALSA: usb-audio: fix use after free in usb_audio_disconnect
	Revert 95ebabde382c ("capabilities: Don't allow writing ambiguous v3 file capabilities")
	block: Discard page cache of zone reset target range
	block: Try to handle busy underlying device on discard
	arm64: kasan: fix page_alloc tagging with DEBUG_VIRTUAL
	arm64: mte: Map hotplugged memory as Normal Tagged
	arm64: perf: Fix 64-bit event counter read truncation
	s390/dasd: fix hanging DASD driver unbind
	s390/dasd: fix hanging IO request during DASD driver unbind
	software node: Fix node registration
	xen/events: reset affinity of 2-level event when tearing it down
	mmc: mmci: Add MMC_CAP_NEED_RSP_BUSY for the stm32 variants
	mmc: core: Fix partition switch time for eMMC
	mmc: cqhci: Fix random crash when remove mmc module/card
	cifs: do not send close in compound create+close requests
	Goodix Fingerprint device is not a modem
	USB: gadget: udc: s3c2410_udc: fix return value check in s3c2410_udc_probe()
	USB: gadget: u_ether: Fix a configfs return code
	usb: gadget: f_uac2: always increase endpoint max_packet_size by one audio slot
	usb: gadget: f_uac1: stop playback on function disable
	usb: dwc3: qcom: Add missing DWC3 OF node refcount decrement
	usb: dwc3: qcom: add URS Host support for sdm845 ACPI boot
	usb: dwc3: qcom: add ACPI device id for sc8180x
	usb: dwc3: qcom: Honor wakeup enabled/disabled state
	USB: usblp: fix a hang in poll() if disconnected
	usb: renesas_usbhs: Clear PIPECFG for re-enabling pipe with other EPNUM
	usb: xhci: do not perform Soft Retry for some xHCI hosts
	xhci: Improve detection of device initiated wake signal.
	usb: xhci: Fix ASMedia ASM1042A and ASM3242 DMA addressing
	xhci: Fix repeated xhci wake after suspend due to uncleared internal wake state
	USB: serial: io_edgeport: fix memory leak in edge_startup
	USB: serial: ch341: add new Product ID
	USB: serial: cp210x: add ID for Acuity Brands nLight Air Adapter
	USB: serial: cp210x: add some more GE USB IDs
	usbip: fix stub_dev to check for stream socket
	usbip: fix vhci_hcd to check for stream socket
	usbip: fix vudc to check for stream socket
	usbip: fix stub_dev usbip_sockfd_store() races leading to gpf
	usbip: fix vhci_hcd attach_store() races leading to gpf
	usbip: fix vudc usbip_sockfd_store races leading to gpf
	Revert "serial: max310x: rework RX interrupt handling"
	misc/pvpanic: Export module FDT device table
	misc: fastrpc: restrict user apps from sending kernel RPC messages
	staging: rtl8192u: fix ->ssid overflow in r8192_wx_set_scan()
	staging: rtl8188eu: prevent ->ssid overflow in rtw_wx_set_scan()
	staging: rtl8712: unterminated string leads to read overflow
	staging: rtl8188eu: fix potential memory corruption in rtw_check_beacon_data()
	staging: ks7010: prevent buffer overflow in ks_wlan_set_scan()
	staging: rtl8712: Fix possible buffer overflow in r8712_sitesurvey_cmd
	staging: rtl8192e: Fix possible buffer overflow in _rtl92e_wx_set_scan
	staging: comedi: addi_apci_1032: Fix endian problem for COS sample
	staging: comedi: addi_apci_1500: Fix endian problem for command sample
	staging: comedi: adv_pci1710: Fix endian problem for AI command data
	staging: comedi: das6402: Fix endian problem for AI command data
	staging: comedi: das800: Fix endian problem for AI command data
	staging: comedi: dmm32at: Fix endian problem for AI command data
	staging: comedi: me4000: Fix endian problem for AI command data
	staging: comedi: pcl711: Fix endian problem for AI command data
	staging: comedi: pcl818: Fix endian problem for AI command data
	sh_eth: fix TRSCER mask for R7S72100
	cpufreq: qcom-hw: fix dereferencing freed memory 'data'
	cpufreq: qcom-hw: Fix return value check in qcom_cpufreq_hw_cpu_init()
	arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory
	SUNRPC: Set memalloc_nofs_save() for sync tasks
	NFS: Don't revalidate the directory permissions on a lookup failure
	NFS: Don't gratuitously clear the inode cache when lookup failed
	NFSv4.2: fix return value of _nfs4_get_security_label()
	block: rsxx: fix error return code of rsxx_pci_probe()
	nvme-fc: fix racing controller reset and create association
	configfs: fix a use-after-free in __configfs_open_file
	arm64: mm: use a 48-bit ID map when possible on 52-bit VA builds
	perf/core: Flush PMU internal buffers for per-CPU events
	perf/x86/intel: Set PERF_ATTACH_SCHED_CB for large PEBS and LBR
	hrtimer: Update softirq_expires_next correctly after __hrtimer_get_next_event()
	powerpc/64s/exception: Clean up a missed SRR specifier
	seqlock,lockdep: Fix seqcount_latch_init()
	stop_machine: mark helpers __always_inline
	include/linux/sched/mm.h: use rcu_dereference in in_vfork()
	zram: fix return value on writeback_store
	linux/compiler-clang.h: define HAVE_BUILTIN_BSWAP*
	sched/membarrier: fix missing local execution of ipi_sync_rq_state()
	efi: stub: omit SetVirtualAddressMap() if marked unsupported in RT_PROP table
	powerpc/64s: Fix instruction encoding for lis in ppc_function_entry()
	powerpc: Fix inverted SET_FULL_REGS bitop
	powerpc: Fix missing declaration of [en/dis]able_kernel_vsx()
	binfmt_misc: fix possible deadlock in bm_register_write
	x86/unwind/orc: Disable KASAN checking in the ORC unwinder, part 2
	x86/sev-es: Introduce ip_within_syscall_gap() helper
	x86/sev-es: Check regs->sp is trusted before adjusting #VC IST stack
	x86/entry: Move nmi entry/exit into common code
	x86/sev-es: Correctly track IRQ states in runtime #VC handler
	x86/sev-es: Use __copy_from_user_inatomic()
	x86/entry: Fix entry/exit mismatch on failed fast 32-bit syscalls
	KVM: x86: Ensure deadline timer has truly expired before posting its IRQ
	KVM: kvmclock: Fix vCPUs > 64 can't be online/hotpluged
	KVM: arm64: Fix range alignment when walking page tables
	KVM: arm64: Avoid corrupting vCPU context register in guest exit
	KVM: arm64: nvhe: Save the SPE context early
	KVM: arm64: Reject VM creation when the default IPA size is unsupported
	KVM: arm64: Fix exclusive limit for IPA size
	mm/userfaultfd: fix memory corruption due to writeprotect
	mm/madvise: replace ptrace attach requirement for process_madvise
	KVM: arm64: Ensure I-cache isolation between vcpus of a same VM
	mm/page_alloc.c: refactor initialization of struct page for holes in memory layout
	xen/events: don't unmask an event channel when an eoi is pending
	xen/events: avoid handling the same event on two cpus at the same time
	KVM: arm64: Fix nVHE hyp panic host context restore
	RDMA/umem: Use ib_dma_max_seg_size instead of dma_get_max_seg_size
	Linux 5.10.24

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie53a3c1963066a18d41357b6be41cff00690bd40
2021-03-19 09:42:56 +01:00
Andy Shevchenko
f60ffab258 gpiolib: acpi: Allow to find GpioInt() resource by name and index
commit 809390219fb9c2421239afe5c9eb862d73978ba0 upstream.

Currently only search by index is supported. However, in some cases
we might need to pass the quirks to the acpi_dev_gpio_irq_get().

For this, split out acpi_dev_gpio_irq_get_by() and replace
acpi_dev_gpio_irq_get() by calling above with NULL for name parameter.

Fixes: ba8c90c618 ("gpio: pca953x: Override IRQ for one of the expanders on Galileo Gen 2")
Depends-on: 0ea683931a ("gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-17 17:06:18 +01:00
Saravana Kannan
4e1a8c589d UPSTREAM: ACPI: Use fwnode_init() to set up fwnode
Commit 01bb86b380a3 ("driver core: Add fwnode_init()") was supposed to
fix up all instances of fwnode creation to use fwnode_init(). But looks
like this instance was missed. This causes a NULL pointer dereference
during device_add() [1]. So, fix it.

[   60.792324][    T1] Call trace:
[   60.795495][    T1]  device_add+0xf60/0x16b0
__fw_devlink_link_to_consumers at drivers/base/core.c:1583
(inlined by) fw_devlink_link_device at drivers/base/core.c:1726
(inlined by) device_add at drivers/base/core.c:3088
[   60.799813][    T1]  platform_device_add+0x274/0x628
[   60.804833][    T1]  acpi_iort_init+0x9d8/0xc50
[   60.809415][    T1]  acpi_init+0x45c/0x4e8
[   60.813556][    T1]  do_one_initcall+0x170/0xb70
[   60.818224][    T1]  kernel_init_freeable+0x6a8/0x734
[   60.823332][    T1]  kernel_init+0x18/0x12c
[   60.827566][    T1]  ret_from_fork+0x10/0x1c
[   60.838756][    T1] ---[ end trace fa5c8ce17a226d83 ]---

[1] - https://lore.kernel.org/linux-arm-kernel/02e7047071f0b54b046ac472adeeb3fafabc643c.camel@redhat.com/

Fixes: 01bb86b380a3 ("driver core: Add fwnode_init()")
Reported-by: Qian Cai <qcai@redhat.com>
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Marc Zyngier <maz@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201211202629.2164655-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 2ab695aa8eb8f3226f68a2b91fc6103b56fcb57d)
Bug: 178143855
Bug: 169667932
Change-Id: I98eab68e67a7a8fb18875ee972ed9e3867363ec2
2021-01-21 18:07:24 -08:00
Shawn Guo
45f7e133f9 ACPI: scan: add stub acpi_create_platform_device() for !CONFIG_ACPI
[ Upstream commit ee61cfd955a64a58ed35cbcfc54068fcbd486945 ]

It adds a stub acpi_create_platform_device() for !CONFIG_ACPI build, so
that caller doesn't have to deal with !CONFIG_ACPI build issue.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-19 18:27:27 +01:00
Joe Perches
33def8498f treewide: Convert macro and uses of __section(foo) to __section("foo")
Use a more generic form for __section that requires quotes to avoid
complications with clang and gcc differences.

Remove the quote operator # from compiler_attributes.h __section macro.

Convert all unquoted __section(foo) uses to quoted __section("foo").
Also convert __attribute__((section("foo"))) uses to __section("foo")
even if the __attribute__ has multiple list entry forms.

Conversion done using the script at:

    https://lore.kernel.org/lkml/75393e5ddc272dc7403de74d645e6c6e0f4e70eb.camel@perches.com/2-convert_section.pl

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@gooogle.com>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-25 14:51:49 -07:00
Linus Torvalds
cf1d2b44f6 Merge tag 'acpi-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
 "These add support for generic initiator-only proximity domains to the
  ACPI NUMA code and the architectures using it, clean up some
  non-ACPICA code referring to debug facilities from ACPICA, reduce the
  overhead related to accessing GPE registers, add a new DPTF (Dynamic
  Power and Thermal Framework) participant driver, update the ACPICA
  code in the kernel to upstream revision 20200925, add a new ACPI
  backlight whitelist entry, fix a few assorted issues and clean up some
  code.

  Specifics:

   - Add support for generic initiator-only proximity domains to the
     ACPI NUMA code and the architectures using it (Jonathan Cameron)

   - Clean up some non-ACPICA code referring to debug facilities from
     ACPICA that are not actually used in there (Hanjun Guo)

   - Add new DPTF driver for the PCH FIVR participant (Srinivas
     Pandruvada)

   - Reduce overhead related to accessing GPE registers in ACPICA and
     the OS interface layer and make it possible to access GPE registers
     using logical addresses if they are memory-mapped (Rafael Wysocki)

   - Update the ACPICA code in the kernel to upstream revision 20200925
     including changes as follows:
      + Add predefined names from the SMBus sepcification (Bob Moore)
      + Update acpi_help UUID list (Bob Moore)
      + Return exceptions for string-to-integer conversions in iASL (Bob
        Moore)
      + Add a new "ALL <NameSeg>" debugger command (Bob Moore)
      + Add support for 64 bit risc-v compilation (Colin Ian King)
      + Do assorted cleanups (Bob Moore, Colin Ian King, Randy Dunlap)

   - Add new ACPI backlight whitelist entry for HP 635 Notebook (Alex
     Hung)

   - Move TPS68470 OpRegion driver to drivers/acpi/pmic/ and split out
     Kconfig and Makefile specific for ACPI PMIC (Andy Shevchenko)

   - Clean up the ACPI SoC driver for AMD SoCs (Hanjun Guo)

   - Add missing config_item_put() to fix refcount leak (Hanjun Guo)

   - Drop lefrover field from struct acpi_memory_device (Hanjun Guo)

   - Make the ACPI extlog driver check for RDMSR failures (Ben
     Hutchings)

   - Fix handling of lid state changes in the ACPI button driver when
     input device is closed (Dmitry Torokhov)

   - Fix several assorted build issues (Barnabás Pőcze, John Garry,
     Nathan Chancellor, Tian Tao)

   - Drop unused inline functions and reduce code duplication by using
     kobj_to_dev() in the NFIT parsing code (YueHaibing, Wang Qing)

   - Serialize tools/power/acpi Makefile (Thomas Renninger)"

* tag 'acpi-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
  ACPICA: Update version to 20200925 Version 20200925
  ACPICA: Remove unnecessary semicolon
  ACPICA: Debugger: Add a new command: "ALL <NameSeg>"
  ACPICA: iASL: Return exceptions for string-to-integer conversions
  ACPICA: acpi_help: Update UUID list
  ACPICA: Add predefined names found in the SMBus sepcification
  ACPICA: Tree-wide: fix various typos and spelling mistakes
  ACPICA: Drop the repeated word "an" in a comment
  ACPICA: Add support for 64 bit risc-v compilation
  ACPI: button: fix handling lid state changes when input device closed
  tools/power/acpi: Serialize Makefile
  ACPI: scan: Replace ACPI_DEBUG_PRINT() with pr_debug()
  ACPI: memhotplug: Remove 'state' from struct acpi_memory_device
  ACPI / extlog: Check for RDMSR failure
  ACPI: Make acpi_evaluate_dsm() prototype consistent
  docs: mm: numaperf.rst Add brief description for access class 1.
  node: Add access1 class to represent CPU to memory characteristics
  ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3
  ACPI: Let ACPI know we support Generic Initiator Affinity Structures
  x86: Support Generic Initiator only proximity domains
  ...
2020-10-14 11:42:04 -07:00
Dan Williams
3b0d31011d x86/numa: add 'nohmat' option
Disable parsing of the HMAT for debug, to workaround broken platform
instances, or cases where it is otherwise not wanted.

[rdunlap@infradead.org: fix build when CONFIG_ACPI is not set]
  Link: https://lkml.kernel.org/r/70e5ee34-9809-a997-7b49-499e4be61307@infradead.org

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Jia He <justin.he@arm.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: Will Deacon <will@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Hulk Robot <hulkci@huawei.com>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Link: https://lkml.kernel.org/r/159643095540.4062302.732962081968036212.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:27 -07:00
Rafael J. Wysocki
5d2a3ca813 Merge branch 'acpi-misc'
* acpi-misc:
  ACPI: Make acpi_evaluate_dsm() prototype consistent
  ACPI: wakeup: Remove dead ACPICA debug code
  ACPI: video: Remove leftover ACPICA debug code
  ACPI: tiny-power-button: Remove dead ACPICA debug code
  ACPI: processor: Remove dead ACPICA debug code
  ACPI: proc: Remove dead ACPICA debug code
  ACPI: PCI: Remove unused ACPICA debug code
  ACPI: event: Remove leftover ACPICA debug code
  ACPI: dock: Remove dead ACPICA debug code
  ACPI: debugfs: Remove dead ACPICA debug code
  ACPI: custom_method: Remove dead ACPICA debug code
  ACPI: container: Remove leftover ACPICA debug functionality
  ACPI: platform: Remove ACPI_MODULE_NAME()
  ACPI: memhotplug: Remove leftover ACPICA debug functionality
  ACPI: LPSS: Remove ACPI_MODULE_NAME()
  ACPI: cmos_rtc: Remove leftover ACPI_MODULE_NAME()
  ACPI: Remove three unused inline functions
2020-10-13 14:44:57 +02:00
Rafael J. Wysocki
e4174ff78b Merge branch 'acpi-numa'
* acpi-numa:
  docs: mm: numaperf.rst Add brief description for access class 1.
  node: Add access1 class to represent CPU to memory characteristics
  ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3
  ACPI: Let ACPI know we support Generic Initiator Affinity Structures
  x86: Support Generic Initiator only proximity domains
  ACPI: Support Generic Initiator only domains
  ACPI / NUMA: Add stub function for pxm_to_node()
  irq-chip/gic-v3-its: Fix crash if ITS is in a proximity domain without processor or memory
  ACPI: Remove side effect of partly creating a node in acpi_get_node()
  ACPI: Rename acpi_map_pxm_to_online_node() to pxm_to_online_node()
  ACPI: Remove side effect of partly creating a node in acpi_map_pxm_to_online_node()
  ACPI: Do not create new NUMA domains from ACPI static tables that are not SRAT
  ACPI: Add out of bounds and numa_off protections to pxm_to_node()
2020-10-13 14:44:50 +02:00
John Garry
1e0cb59d5f ACPI: Make acpi_evaluate_dsm() prototype consistent
When compiling a driver which includes both include/linux/acpi.h and
include/acpi/acpi_bus.h for when CONFIG_ACPI=n for i386, I get this:

/include/acpi/acpi_bus.h:53:20: error: conflicting types for ‘acpi_evaluate_dsm’
 union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid,
                    ^~~~~~~~~~~~~~~~~
In file included from drivers/scsi/hisi_sas/hisi_sas.h:10:0,
                 from drivers/scsi/hisi_sas/hisi_sas_main.c:7:
./include/linux/acpi.h:866:34: note: previous definition of ‘acpi_evaluate_dsm’ was here
 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
                                  ^~~~~~~~~~~~~~~~~
Fix by making prototype in include/linux/acpi.h consistent.

Signed-off-by: John Garry <john.garry@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-02 18:58:35 +02:00
Jonathan Cameron
01aabca2fd ACPI: Let ACPI know we support Generic Initiator Affinity Structures
Until we tell ACPI that we support generic initiators, it will have
to operate in fall back domain mode and all _PXM entries should
be on existing non GI domains.

This patch sets the relevant OSC bit to make that happen.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-02 18:51:57 +02:00
Ard Biesheuvel
a509a66a9d arm64: permit ACPI core to map kernel memory used for table overrides
Jonathan reports that the strict policy for memory mapped by the
ACPI core breaks the use case of passing ACPI table overrides via
initramfs. This is due to the fact that the memory type used for
loading the initramfs in memory is not recognized as a memory type
that is typically used by firmware to pass firmware tables.

Since the purpose of the strict policy is to ensure that no AML or
other ACPI code can manipulate any memory that is used by the kernel
to keep its internal state or the state of user tasks, we can relax
the permission check, and allow mappings of memory that is reserved
and marked as NOMAP via memblock, and therefore not covered by the
linear mapping to begin with.

Fixes: 1583052d11 ("arm64/acpi: disallow AML memory opregions to access kernel memory")
Fixes: 325f5585ec ("arm64/acpi: disallow writeable AML opregion mapping for EFI code regions")
Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Link: https://lore.kernel.org/r/20200929132522.18067-1-ardb@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-09-30 22:27:51 +01:00
YueHaibing
749626fa09 ACPI: Remove three unused inline functions
There is no callers in tree.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 12:36:34 +02:00
Jonathan Cameron
4eb3723f18 ACPI: Rename acpi_map_pxm_to_online_node() to pxm_to_online_node()
As this function is no longer allowed to create new mappings
let us rename it to reflect this.

Note all nodes should already exist before any of the users
of this function are called.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-24 12:57:38 +02:00
Jonathan Cameron
fe205d984e ACPI: Remove side effect of partly creating a node in acpi_map_pxm_to_online_node()
While this function will only return an online node, it can have the side
effect of partially creating a new node.  The existing comments suggest this
is intentional, but the usecases of this function are related to NFIT and
HMAT parsing, neither of which should be able to define new nodes.

One route by which the existing behaviour would cause a crash is to have a
_PXM entry in ACPI DSDT attempt to place a device within this partly
created proximity domain. A subsequent call to devm_kzalloc() or similar
would result in an attempt to allocate memory on a node for which zone
lists have not been set up and a NULL pointer dereference.

Prevent such cases by switching to pxm_to_node() within
acpi_map_pxm_to_online_node() which cannot cause a new node to be
partly created. If one would previously have been created we now
return NO_NUMA_NODE.  Documentation updated to reflect this change.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-24 12:57:38 +02:00
Linus Torvalds
f8b036a7fc Merge tag 'irq-core-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "The usual boring updates from the interrupt subsystem:

   - Infrastructure to allow building irqchip drivers as modules

   - Consolidation of irqchip ACPI probing

   - Removal of the EOI-preflow interrupt handler which was required for
     SPARC support and became obsolete after SPARC was converted to use
     sparse interrupts.

   - Cleanups, fixes and improvements all over the place"

* tag 'irq-core-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
  irqchip/loongson-pch-pic: Fix the misused irq flow handler
  irqchip/loongson-htvec: Support 8 groups of HT vectors
  irqchip/loongson-liointc: Fix misuse of gc->mask_cache
  dt-bindings: interrupt-controller: Update Loongson HTVEC description
  irqchip/imx-intmux: Fix irqdata regs save in imx_intmux_runtime_suspend()
  irqchip/imx-intmux: Implement intmux runtime power management
  irqchip/gic-v4.1: Use GFP_ATOMIC flag in allocate_vpe_l1_table()
  irqchip: Fix IRQCHIP_PLATFORM_DRIVER_* compilation by including module.h
  irqchip/stm32-exti: Map direct event to irq parent
  irqchip/mtk-cirq: Convert to a platform driver
  irqchip/mtk-sysirq: Convert to a platform driver
  irqchip/qcom-pdc: Switch to using IRQCHIP_PLATFORM_DRIVER helper macros
  irqchip: Add IRQCHIP_PLATFORM_DRIVER_BEGIN/END and IRQCHIP_MATCH helper macros
  irqchip: irq-bcm2836.h: drop a duplicated word
  irqchip/gic-v4.1: Ensure accessing the correct RD when writing INVALLR
  irqchip/irq-bcm7038-l1: Guard uses of cpu_logical_map
  irqchip/gic-v3: Remove unused register definition
  irqchip/qcom-pdc: Allow QCOM_PDC to be loadable as a permanent module
  genirq: Export irq_chip_retrigger_hierarchy and irq_chip_set_vcpu_affinity_parent
  irqdomain: Export irq_domain_update_bus_token
  ...
2020-08-04 18:11:58 -07:00
Lorenzo Pieralisi
b8e069a2a8 ACPI/IORT: Add an input ID to acpi_dma_configure()
Some HW devices are created as child devices of proprietary busses,
that have a bus specific policy defining how the child devices
wires representing the devices ID are translated into IOMMU and
IRQ controllers device IDs.

Current IORT code provides translations for:

- PCI devices, where the device ID is well identified at bus level
  as the requester ID (RID)
- Platform devices that are endpoint devices where the device ID is
  retrieved from the ACPI object IORT mappings (Named components single
  mappings). A platform device is represented in IORT as a named
  component node

For devices that are child devices of proprietary busses the IORT
firmware represents the bus node as a named component node in IORT
and it is up to that named component node to define in/out bus
specific ID translations for the bus child devices that are
allocated and created in a bus specific manner.

In order to make IORT ID translations available for proprietary
bus child devices, the current ACPI (and IORT) code must be
augmented to provide an additional ID parameter to acpi_dma_configure()
representing the child devices input ID. This ID is bus specific
and it is retrieved in bus specific code.

By adding an ID parameter to acpi_dma_configure(), the IORT
code can map the child device ID to an IOMMU stream ID through
the IORT named component representing the bus in/out ID mappings.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Link: https://lore.kernel.org/r/20200619082013.13661-6-lorenzo.pieralisi@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-07-28 15:51:31 +01:00
Oscar Carter
8ebf642f3d drivers/acpi: Remove function cast
Remove the function cast in the ACPI_DECLARE_PROBE_ENTRY macro to ensure
that the functions passed as a last parameter to this macro have the
right prototype.

This is an effort to enable -Wcast-function-type in the top-level Makefile
to support Control Flow Integrity builds.

Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Oscar Carter <oscar.carter@gmx.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20200530143430.5203-4-oscar.carter@gmx.com
2020-06-27 11:55:52 +01:00
Oscar Carter
89778093d3 drivers/acpi: Add new macro ACPI_DECLARE_SUBTABLE_PROBE_ENTRY
In an effort to enable -Wcast-function-type in the top-level Makefile to
support Control Flow Integrity builds, there are the need to remove all
the function callback casts.

To do this, create a new macro called ACPI_DECLARE_SUBTABLE_PROBE_ENTRY
to initialize the acpi_probe_entry struct using the probe_subtbl field
instead of the probe_table field. This is a previous work to be able to
modify the IRQCHIP_ACPI_DECLARE macro to use this new defined macro.

Even though these two commented fields are part of a union, this is
necessary to avoid function cast mismatches. That is, due to the
IRQCHIP_ACPI_DECLARE invocations use as last parameter a function with
the protoype "int (*func)(struct acpi_subtable_header *, const unsigned
long)" it's necessary that this macro initialize the probe_subtbl field
of the acpi_probe_entry struct and not the probe_table field.

Co-developed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Oscar Carter <oscar.carter@gmx.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20200530143430.5203-2-oscar.carter@gmx.com
2020-06-27 11:55:52 +01:00
Linus Torvalds
9b06860d7c Merge tag 'libnvdimm-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm and dax updates from Dan Williams:
 "There were multiple touches outside of drivers/nvdimm/ this round to
  add cross arch compatibility to the devm_memremap_pages() interface,
  enhance numa information for persistent memory ranges, and add a
  zero_page_range() dax operation.

  This cycle I switched from the patchwork api to Konstantin's b4 script
  for collecting tags (from x86, PowerPC, filesystem, and device-mapper
  folks), and everything looks to have gone ok there. This has all
  appeared in -next with no reported issues.

  Summary:

   - Add support for region alignment configuration and enforcement to
     fix compatibility across architectures and PowerPC page size
     configurations.

   - Introduce 'zero_page_range' as a dax operation. This facilitates
     filesystem-dax operation without a block-device.

   - Introduce phys_to_target_node() to facilitate drivers that want to
     know resulting numa node if a given reserved address range was
     onlined.

   - Advertise a persistence-domain for of_pmem and papr_scm. The
     persistence domain indicates where cpu-store cycles need to reach
     in the platform-memory subsystem before the platform will consider
     them power-fail protected.

   - Promote numa_map_to_online_node() to a cross-kernel generic
     facility.

   - Save x86 numa information to allow for node-id lookups for reserved
     memory ranges, deploy that capability for the e820-pmem driver.

   - Pick up some miscellaneous minor fixes, that missed v5.6-final,
     including a some smatch reports in the ioctl path and some unit
     test compilation fixups.

   - Fixup some flexible-array declarations"

* tag 'libnvdimm-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (29 commits)
  dax: Move mandatory ->zero_page_range() check in alloc_dax()
  dax,iomap: Add helper dax_iomap_zero() to zero a range
  dax: Use new dax zero page method for zeroing a page
  dm,dax: Add dax zero_page_range operation
  s390,dcssblk,dax: Add dax zero_page_range operation to dcssblk driver
  dax, pmem: Add a dax operation zero_page_range
  pmem: Add functions for reading/writing page to/from pmem
  libnvdimm: Update persistence domain value for of_pmem and papr_scm device
  tools/test/nvdimm: Fix out of tree build
  libnvdimm/region: Fix build error
  libnvdimm/region: Replace zero-length array with flexible-array member
  libnvdimm/label: Replace zero-length array with flexible-array member
  ACPI: NFIT: Replace zero-length array with flexible-array member
  libnvdimm/region: Introduce an 'align' attribute
  libnvdimm/region: Introduce NDD_LABELING
  libnvdimm/namespace: Enforce memremap_compat_align()
  libnvdimm/pfn: Prevent raw mode fallback if pfn-infoblock valid
  libnvdimm: Out of bounds read in __nd_ioctl()
  acpi/nfit: improve bounds checking for 'func'
  mm/memremap_pages: Introduce memremap_compat_align()
  ...
2020-04-08 21:03:40 -07:00
Linus Torvalds
ef05db16bb Merge tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
 "Additional power management updates.

  These fix a corner-case suspend-to-idle wakeup issue on systems where
  the ACPI SCI is shared with another wakeup source, add a kernel
  command line option to set pm_debug_messages via the kernel command
  line, add a document desctibing system-wide suspend and resume code
  flows, modify cpufreq Kconfig to choose schedutil as the preferred
  governor by default in a couple of cases and do some assorted
  cleanups.

  Specifics:

   - Fix corner-case suspend-to-idle wakeup issue on systems where the
     ACPI SCI is shared with another wakeup source (Hans de Goede).

   - Add document describing system-wide suspend and resume code flows
     to the admin guide (Rafael Wysocki).

   - Add kernel command line option to set pm_debug_messages (Chen Yu).

   - Choose schedutil as the preferred scaling governor by default on
     ARM big.LITTLE systems and on x86 systems using the intel_pstate
     driver in the passive mode (Linus Walleij, Rafael Wysocki).

   - Drop racy and redundant checks from the PM core's device_prepare()
     routine (Rafael Wysocki).

   - Make resume from hibernation take the hibernation_restore() return
     value into account (Dexuan Cui)"

* tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  platform/x86: intel_int0002_vgpio: Use acpi_register_wakeup_handler()
  ACPI: PM: Add acpi_[un]register_wakeup_handler()
  Documentation: PM: sleep: Document system-wide suspend code flows
  cpufreq: Select schedutil when using big.LITTLE
  PM: sleep: Add pm_debug_messages kernel command line option
  PM: sleep: core: Drop racy and redundant checks from device_prepare()
  PM: hibernate: Propagate the return value of hibernation_restore()
  cpufreq: intel_pstate: Select schedutil as the default governor
2020-04-06 10:14:39 -07:00
Hans de Goede
ddfd9dcf27 ACPI: PM: Add acpi_[un]register_wakeup_handler()
Since commit fdde0ff859 ("ACPI: PM: s2idle: Prevent spurious SCIs from
waking up the system") the SCI triggering without there being a wakeup
cause recognized by the ACPI sleep code will no longer wakeup the system.

This works as intended, but this is a problem for devices where the SCI
is shared with another device which is also a wakeup source.

In the past these, from the pov of the ACPI sleep code, spurious SCIs
would still cause a wakeup so the wakeup from the device sharing the
interrupt would actually wakeup the system. This now no longer works.

This is a problem on e.g. Bay Trail-T and Cherry Trail devices where
some peripherals (typically the XHCI controller) can signal a
Power Management Event (PME) to the Power Management Controller (PMC)
to wakeup the system, this uses the same interrupt as the SCI.
These wakeups are handled through a special INT0002 ACPI device which
checks for events in the GPE0a_STS for this and takes care of acking
the PME so that the shared interrupt stops triggering.

The change to the ACPI sleep code to ignore the spurious SCI, causes
the system to no longer wakeup on these PME events. To make things
worse this means that the INT0002 device driver interrupt handler will
no longer run, causing the PME to not get cleared and resulting in the
system hanging. Trying to wakeup the system after such a PME through e.g.
the power button no longer works.

Add an acpi_register_wakeup_handler() function which registers
a handler to be called from acpi_s2idle_wake() and when the handler
returns true, return true from acpi_s2idle_wake().

The INT0002 driver will use this mechanism to check the GPE0a_STS
register from acpi_s2idle_wake() and to tell the system to wakeup
if a PME is signaled in the register.

Fixes: fdde0ff859 ("ACPI: PM: s2idle: Prevent spurious SCIs from waking up the system")
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-04 19:45:18 +02:00
Kuppuswamy Sathyanarayanan
ac1c8e35a3 PCI/DPC: Add Error Disconnect Recover (EDR) support
Error Disconnect Recover (EDR) is a feature that allows ACPI firmware to
notify OSPM that a device has been disconnected due to an error condition
(ACPI v6.3, sec 5.6.6).  OSPM advertises its support for EDR on PCI devices
via _OSC (see [1], sec 4.5.1, table 4-4).  The OSPM EDR notify handler
should invalidate software state associated with disconnected devices and
may attempt to recover them.  OSPM communicates the status of recovery to
the firmware via _OST (sec 6.3.5.2).

For PCIe, firmware may use Downstream Port Containment (DPC) to support
EDR.  Per [1], sec 4.5.1, table 4-6, even if firmware has retained control
of DPC, OSPM may read/write DPC control and status registers during the EDR
notification processing window, i.e., from the time it receives an EDR
notification until it clears the DPC Trigger Status.

Note that per [1], sec 4.5.1 and 4.5.2.4,

  1. If the OS supports EDR, it should advertise that to firmware by
     setting OSC_PCI_EDR_SUPPORT in _OSC Support.

  2. If the OS sets OSC_PCI_EXPRESS_DPC_CONTROL in _OSC Control to request
     control of the DPC capability, it must also set OSC_PCI_EDR_SUPPORT in
     _OSC Support.

Add an EDR notify handler to attempt recovery.

[1] Downstream Port Containment Related Enhancements ECN, Jan 28, 2019,
    affecting PCI Firmware Specification, Rev. 3.2
    https://members.pcisig.com/wg/PCI-SIG/document/12888

[bhelgaas: squash add/enable patches into one]
Link: https://lore.kernel.org/r/90f91fe6d25c13f9d2255d2ce97ca15be307e1bb.1585000084.git.sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <lenb@kernel.org>
2020-03-28 13:19:04 -05:00
Dan Williams
b2ca916ce3 ACPI: NUMA: Up-level "map to online node" functionality
The acpi_map_pxm_to_online_node() helper is used to find the closest
online node to a given proximity domain. This is used to map devices in
a proximity domain with no online memory or cpus to the closest online
node and populate a device's 'numa_node' property. The numa_node
property allows applications to be migrated "close" to a resource.

In preparation for providing a generic facility to optionally map an
address range to its closest online node, or the node the range would
represent were it to be onlined (target_node), up-level the core of
acpi_map_pxm_to_online_node() to a generic mm/numa helper.

Cc: Michal Hocko <mhocko@suse.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/158188324802.894464.13128795207831894206.stgit@dwillia2-desk3.amr.corp.intel.com
2020-02-17 10:49:06 -08:00
Rafael J. Wysocki
77fb4e0a55 ACPI: processor: Export acpi_processor_evaluate_cst()
The intel_idle driver will be modified to use ACPI _CST subsequently
and it will need to call acpi_processor_evaluate_cst(), so move that
function to acpi_processor.c so that it is always present (which is
required by intel_idle) and export it to modules to allow the ACPI
processor driver (which is modular) to call it.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-12-27 11:02:07 +01:00
Rafael J. Wysocki
bc94638886 ACPI: processor: Export function to claim _CST control
The intel_idle driver will be modified to use ACPI _CST subsequently
and it will need to notify the platform firmware of that if
acpi_gbl_FADT.cst_control is set, so add a routine for this purpose,
acpi_processor_claim_cst_control(), to acpi_processor.c (so that it
is always present which is required by intel_idle) and export it
to allow the ACPI processor driver (which is modular) to call it.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-12-16 12:06:18 +01:00
Andy Shevchenko
35009c8074 ACPI / utils: Introduce acpi_dev_hid_uid_match() helper
There are users outside of ACPI realm which reimplementing the comparator
function to check if the given device matches to given HID and UID.

For better utilization, introduce a helper for everyone to use.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-10-15 12:06:23 +02:00
Linus Torvalds
aefcf2f4b5 Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
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
  ...
2019-09-28 08:14:15 -07:00
Linus Torvalds
77dcfe2b9e Merge tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
 "These include a rework of the main suspend-to-idle code flow (related
  to the handling of spurious wakeups), a switch over of several users
  of cpufreq notifiers to QoS-based limits, a new devfreq driver for
  Tegra20, a new cpuidle driver and governor for virtualized guests, an
  extension of the wakeup sources framework to expose wakeup sources as
  device objects in sysfs, and more.

  Specifics:

   - Rework the main suspend-to-idle control flow to avoid repeating
     "noirq" device resume and suspend operations in case of spurious
     wakeups from the ACPI EC and decouple the ACPI EC wakeups support
     from the LPS0 _DSM support (Rafael Wysocki).

   - Extend the wakeup sources framework to expose wakeup sources as
     device objects in sysfs (Tri Vo, Stephen Boyd).

   - Expose system suspend statistics in sysfs (Kalesh Singh).

   - Introduce a new haltpoll cpuidle driver and a new matching governor
     for virtualized guests wanting to do guest-side polling in the idle
     loop (Marcelo Tosatti, Joao Martins, Wanpeng Li, Stephen Rothwell).

   - Fix the menu and teo cpuidle governors to allow the scheduler tick
     to be stopped if PM QoS is used to limit the CPU idle state exit
     latency in some cases (Rafael Wysocki).

   - Increase the resolution of the play_idle() argument to microseconds
     for more fine-grained injection of CPU idle cycles (Daniel
     Lezcano).

   - Switch over some users of cpuidle notifiers to the new QoS-based
     frequency limits and drop the CPUFREQ_ADJUST and CPUFREQ_NOTIFY
     policy notifier events (Viresh Kumar).

   - Add new cpufreq driver based on nvmem for sun50i (Yangtao Li).

   - Add support for MT8183 and MT8516 to the mediatek cpufreq driver
     (Andrew-sh.Cheng, Fabien Parent).

   - Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson
     Huang).

   - Add qcs404 to cpufreq-dt-platdev blacklist (Jorge Ramirez-Ortiz).

   - Update the qcom cpufreq driver (among other things, to make it
     easier to extend and to use kryo cpufreq for other nvmem-based
     SoCs) and add qcs404 support to it (Niklas Cassel, Douglas
     RAILLARD, Sibi Sankar, Sricharan R).

   - Fix assorted issues and make assorted minor improvements in the
     cpufreq code (Colin Ian King, Douglas RAILLARD, Florian Fainelli,
     Gustavo Silva, Hariprasad Kelam).

   - Add new devfreq driver for NVidia Tegra20 (Dmitry Osipenko, Arnd
     Bergmann).

   - Add new Exynos PPMU events to devfreq events and extend that
     mechanism (Lukasz Luba).

   - Fix and clean up the exynos-bus devfreq driver (Kamil Konieczny).

   - Improve devfreq documentation and governor code, fix spelling typos
     in devfreq (Ezequiel Garcia, Krzysztof Kozlowski, Leonard Crestez,
     MyungJoo Ham, Gaël PORTAY).

   - Add regulators enable and disable to the OPP (operating performance
     points) framework (Kamil Konieczny).

   - Update the OPP framework to support multiple opp-suspend properties
     (Anson Huang).

   - Fix assorted issues and make assorted minor improvements in the OPP
     code (Niklas Cassel, Viresh Kumar, Yue Hu).

   - Clean up the generic power domains (genpd) framework (Ulf Hansson).

   - Clean up assorted pieces of power management code and documentation
     (Akinobu Mita, Amit Kucheria, Chuhong Yuan).

   - Update the pm-graph tool to version 5.5 including multiple fixes
     and improvements (Todd Brandt).

   - Update the cpupower utility (Benjamin Weis, Geert Uytterhoeven,
     Sébastien Szymanski)"

* tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (126 commits)
  cpuidle-haltpoll: Enable kvm guest polling when dedicated physical CPUs are available
  cpuidle-haltpoll: do not set an owner to allow modunload
  cpuidle-haltpoll: return -ENODEV on modinit failure
  cpuidle-haltpoll: set haltpoll as preferred governor
  cpuidle: allow governor switch on cpuidle_register_driver()
  PM: runtime: Documentation: add runtime_status ABI document
  pm-graph: make setVal unbuffered again for python2 and python3
  powercap: idle_inject: Use higher resolution for idle injection
  cpuidle: play_idle: Increase the resolution to usec
  cpuidle-haltpoll: vcpu hotplug support
  cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist
  cpufreq: qcom: Add support for qcs404 on nvmem driver
  cpufreq: qcom: Refactor the driver to make it easier to extend
  cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs
  dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR
  dt-bindings: opp: qcom-nvmem: Support pstates provided by a power domain
  Documentation: cpufreq: Update policy notifier documentation
  cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events
  PM / Domains: Verify PM domain type in dev_pm_genpd_set_performance_state()
  PM / Domains: Simplify genpd_lookup_dev()
  ...
2019-09-17 19:15:14 -07:00
Linus Torvalds
e77fafe9af Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
 "Although there isn't tonnes of code in terms of line count, there are
  a fair few headline features which I've noted both in the tag and also
  in the merge commits when I pulled everything together.

  The part I'm most pleased with is that we had 35 contributors this
  time around, which feels like a big jump from the usual small group of
  core arm64 arch developers. Hopefully they all enjoyed it so much that
  they'll continue to contribute, but we'll see.

  It's probably worth highlighting that we've pulled in a branch from
  the risc-v folks which moves our CPU topology code out to where it can
  be shared with others.

  Summary:

   - 52-bit virtual addressing in the kernel

   - New ABI to allow tagged user pointers to be dereferenced by
     syscalls

   - Early RNG seeding by the bootloader

   - Improve robustness of SMP boot

   - Fix TLB invalidation in light of recent architectural
     clarifications

   - Support for i.MX8 DDR PMU

   - Remove direct LSE instruction patching in favour of static keys

   - Function error injection using kprobes

   - Support for the PPTT "thread" flag introduced by ACPI 6.3

   - Move PSCI idle code into proper cpuidle driver

   - Relaxation of implicit I/O memory barriers

   - Build with RELR relocations when toolchain supports them

   - Numerous cleanups and non-critical fixes"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (114 commits)
  arm64: remove __iounmap
  arm64: atomics: Use K constraint when toolchain appears to support it
  arm64: atomics: Undefine internal macros after use
  arm64: lse: Make ARM64_LSE_ATOMICS depend on JUMP_LABEL
  arm64: asm: Kill 'asm/atomic_arch.h'
  arm64: lse: Remove unused 'alt_lse' assembly macro
  arm64: atomics: Remove atomic_ll_sc compilation unit
  arm64: avoid using hard-coded registers for LSE atomics
  arm64: atomics: avoid out-of-line ll/sc atomics
  arm64: Use correct ll/sc atomic constraints
  jump_label: Don't warn on __exit jump entries
  docs/perf: Add documentation for the i.MX8 DDR PMU
  perf/imx_ddr: Add support for AXI ID filtering
  arm64: kpti: ensure patched kernel text is fetched from PoU
  arm64: fix fixmap copy for 16K pages and 48-bit VA
  perf/smmuv3: Validate groups for global filtering
  perf/smmuv3: Validate group size
  arm64: Relax Documentation/arm64/tagged-pointers.rst
  arm64: kvm: Replace hardcoded '1' with SYS_PAR_EL1_F
  arm64: mm: Ignore spurious translation faults taken from the kernel
  ...
2019-09-16 14:31:40 -07:00
Josh Boyer
41fa1ee9c6 acpi: Ignore acpi_rsdp kernel param when the kernel has been locked down
This option allows userspace to pass the RSDP address to the kernel, which
makes it possible for a user to modify the workings of hardware. Reject
the option when the kernel is locked down. This requires some reworking
of the existing RSDP command line logic, since the early boot code also
makes use of a command-line passed RSDP when locating the SRAT table
before the lockdown code has been initialised. This is achieved by
separating the command line RSDP path in the early boot code from the
generic RSDP path, and then copying the command line RSDP into boot
params in the kernel proper if lockdown is not enabled. If lockdown is
enabled and an RSDP is provided on the command line, this will only be
used when parsing SRAT (which shouldn't permit kernel code execution)
and will be ignored in the rest of the kernel.

(Modified by Matthew Garrett in order to handle the early boot RSDP
environment)

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Matthew Garrett <mjg59@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
cc: Dave Young <dyoung@redhat.com>
cc: linux-acpi@vger.kernel.org
Signed-off-by: James Morris <jmorris@namei.org>
2019-08-19 21:54:16 -07:00
Jeremy Linton
bbd1b70639 ACPI/PPTT: Add support for ACPI 6.3 thread flag
ACPI 6.3 adds a flag to the CPU node to indicate whether
the given PE is a thread. Add a function to return that
information for a given linux logical CPU.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Robert Richter <rrichter@marvell.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-08-12 12:59:15 +01:00
Andy Shevchenko
2838bf941b gpiolib-acpi: Move acpi_dev_add_driver_gpios() et al to consumer.h
The API, which belongs to GPIO library, is foreign to ACPI headers. Earlier
we moved out I²C out of the latter, and now it's time for
acpi_dev_add_driver_gpios() et al.

For time being the acpi_gpio_get_irq_resource() and acpi_dev_gpio_irq_get()
are left untouched as they need more thought about.

Note, it requires uninline acpi_dev_remove_driver_gpios() to keep purity of
consumer.h.

Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Cc: Jie Yang <yang.jie@linux.intel.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: alsa-devel@alsa-project.org (moderated list:INTEL ASoC DRIVERS)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190730104337.21235-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-07-31 00:59:19 +02:00
Rafael J. Wysocki
10a08fd65e ACPI: PM: Set up EC GPE for system wakeup from drivers that need it
The EC GPE needs to be set up for system wakeup only if there is a
driver depending on it, either intel-hid or intel-vbtn, bound to a
button device that is expected to wake up the system from sleep (such
as the power button on some Dell systems, like the XPS13 9360).  It
doesn't need to be set up for waking up the system from sleep in any
other cases and whether or not it is expected to wake up the system
from sleep doesn't depend on whether or not the LPS0 device is
present in the ACPI namespace.

For this reason, rearrange the ACPI suspend-to-idle code to make the
drivers depending on the EC GPE wakeup take care of setting it up and
decouple that from the LPS0 device handling.

While at it, make intel-hid and intel-vbtn prepare for system wakeup
only if they are allowed to wake up the system from sleep by user
space (via sysfs).

[Note that acpi_ec_mark_gpe_for_wake() and acpi_ec_set_gpe_wake_mask()
 are there to prevent the EC GPE from being disabled by the
 acpi_enable_all_wakeup_gpes() call in acpi_s2idle_prepare(), so on
 systems with either intel-hid or intel-vbtn this change doesn't
 affect any interactions with the hardware or platform firmware.]

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2019-07-30 12:26:21 +02:00
Linus Torvalds
4b09ddbcd1 Merge tag 'acpi-5.3-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
 "These get rid of two clang warnings, add a new quirk mechanism to the
  ACPI backlight driver (and apply it to one machine) and update the
  table load object initialization in ACPICA (this is a replacement for
  a previously reverted ACPICA commit).

  Specifics:

   - Make ACPI table loading work more consistently regardless of the
     exact mechanism used for loading a table (Erik Schmauss).

   - Get rid of two clang warnings (Arnd Bergmann).

   - Add new quirk mechanism to the ACPI backlight driver and use it to
     add a quirk for PB Easynote MZ35 (Hans de Goede)"

* tag 'acpi-5.3-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: video: Add new hw_changes_brightness quirk, set it on PB Easynote MZ35
  ACPI: fix false-positive -Wuninitialized warning
  ACPI: blacklist: fix clang warning for unused DMI table
  ACPICA: Update table load object initialization
2019-07-18 09:12:34 -07:00
Arnd Bergmann
dfd6f9ad36 ACPI: fix false-positive -Wuninitialized warning
clang gets confused by an uninitialized variable in what looks
to it like a never executed code path:

arch/x86/kernel/acpi/boot.c:618:13: error: variable 'polarity' is uninitialized when used here [-Werror,-Wuninitialized]
        polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
                   ^~~~~~~~
arch/x86/kernel/acpi/boot.c:606:32: note: initialize the variable 'polarity' to silence this warning
        int rc, irq, trigger, polarity;
                                      ^
                                       = 0
arch/x86/kernel/acpi/boot.c:617:12: error: variable 'trigger' is uninitialized when used here [-Werror,-Wuninitialized]
        trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
                  ^~~~~~~
arch/x86/kernel/acpi/boot.c:606:22: note: initialize the variable 'trigger' to silence this warning
        int rc, irq, trigger, polarity;
                            ^
                             = 0

This is unfortunately a design decision in clang and won't be fixed.

Changing the acpi_get_override_irq() macro to an inline function
reliably avoids the issue.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-15 10:13:41 +02:00
Linus Torvalds
5516745311 Merge tag 'platform-drivers-x86-v5.3-1' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver updates from Andy Shevchenko:
 "Gathered a bunch of x86 platform driver changes. It's rather big,
  since includes two big refactors and completely new driver:

   - ASUS WMI driver got a big refactoring in order to support the TUF
     Gaming laptops. Besides that, the regression with backlight being
     permanently off on various EeePC laptops has been fixed.

   - Accelerometer on HP ProBook 450 G0 shows wrong measurements due to
     X axis being inverted. This has been fixed.

   - Intel PMC core driver has been extended to be ACPI enumerated if
     the DSDT provides device with _HID "INT33A1". This allows to
     convert the driver to be pure platform and support new hardware
     purely based on ACPI DSDT.

   - From now on the Intel Speed Select Technology is supported thru a
     corresponding driver. This driver provides an access to the
     features of the ISST, such as Performance Profile, Core Power, Base
     frequency and Turbo Frequency.

   - Mellanox platform drivers has been refactored and now extended to
     support more systems, including new coming ones.

   - The OLPC XO-1.75 platform is now supported.

   - CB4063 Beckhoff Automation board is using PMC clocks, provided via
     pmc_atom driver, for ethernet controllers in a way that they can't
     be managed by the clock driver. The quirk has been extended to
     cover this case.

   - Touchscreen on Chuwi Hi10 Plus tablet has been enabled. Meanwhile
     the information of Chuwi Hi10 Air has been fixed to cover more
     models based on the same platform.

   - Xiaomi notebooks have WMI interface enabled. Thus, the driver to
     support it has been provided. It required some extension of the
     generic WMI library, which allows to propagate opaque context to
     the ->probe() of the individual drivers.

  This release includes debugfs clean up from Greg KH for several
  drivers that drop return code check and make debugfs absence or
  failure non-fatal.

  Also miscellaneous fixes here and there, mostly for Acer WMI and
  various Intel drivers"

* tag 'platform-drivers-x86-v5.3-1' of git://git.infradead.org/linux-platform-drivers-x86: (74 commits)
  platform/x86: Fix PCENGINES_APU2 Kconfig warning
  tools/power/x86/intel-speed-select: Add .gitignore file
  platform/x86: mlx-platform: Fix error handling in mlxplat_init()
  platform/x86: intel_pmc_core: Attach using APCI HID "INT33A1"
  platform/x86: intel_pmc_core: transform Pkg C-state residency from TSC ticks into microseconds
  platform/x86: asus-wmi: Use dev_get_drvdata()
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform/x86: mlx-platform: Add more reset cause attributes
  platform/x86: mlx-platform: Modify DMI matching order
  platform/x86: mlx-platform: Add regmap structure for the next generation systems
  platform/x86: mlx-platform: Change API for i2c-mlxcpld driver activation
  platform/x86: mlx-platform: Move regmap initialization before all drivers activation
  MAINTAINERS: Update for Intel Speed Select Technology
  tools/power/x86: A tool to validate Intel Speed Select commands
  platform/x86: ISST: Restore state on resume
  platform/x86: ISST: Add Intel Speed Select PUNIT MSR interface
  platform/x86: ISST: Add Intel Speed Select mailbox interface via MSRs
  platform/x86: ISST: Add Intel Speed Select mailbox interface via PCI
  platform/x86: ISST: Add Intel Speed Select mmio interface
  platform/x86: ISST: Add IOCTL to Translate Linux logical CPU to PUNIT CPU number
  ...
2019-07-14 16:51:47 -07:00
Linus Torvalds
cf2d213e49 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
  ...
2019-07-09 10:05:22 -07:00
Linus Torvalds
2a1ccd3142 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "The irq departement provides the usual mixed bag:

  Core:

   - Further improvements to the irq timings code which aims to predict
     the next interrupt for power state selection to achieve better
     latency/power balance

   - Add interrupt statistics to the core NMI handlers

   - The usual small fixes and cleanups

  Drivers:

   - Support for Renesas RZ/A1, Annapurna Labs FIC, Meson-G12A SoC and
     Amazon Gravition AMR/GIC interrupt controllers.

   - Rework of the Renesas INTC controller driver

   - ACPI support for Socionext SoCs

   - Enhancements to the CSKY interrupt controller

   - The usual small fixes and cleanups"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
  irq/irqdomain: Fix comment typo
  genirq: Update irq stats from NMI handlers
  irqchip/gic-pm: Remove PM_CLK dependency
  irqchip/al-fic: Introduce Amazon's Annapurna Labs Fabric Interrupt Controller Driver
  dt-bindings: interrupt-controller: Add Amazon's Annapurna Labs FIC
  softirq: Use __this_cpu_write() in takeover_tasklets()
  irqchip/mbigen: Stop printing kernel addresses
  irqchip/gic: Add dependency for ARM_GIC_MAX_NR
  genirq/affinity: Remove unused argument from [__]irq_build_affinity_masks()
  genirq/timings: Add selftest for next event computation
  genirq/timings: Add selftest for irqs circular buffer
  genirq/timings: Add selftest for circular array
  genirq/timings: Encapsulate storing function
  genirq/timings: Encapsulate timings push
  genirq/timings: Optimize the period detection speed
  genirq/timings: Fix timings buffer inspection
  genirq/timings: Fix next event index function
  irqchip/qcom: Use struct_size() in devm_kzalloc()
  irqchip/irq-csky-mpintc: Remove unnecessary loop in interrupt handler
  dt-bindings: interrupt-controller: Update csky mpintc
  ...
2019-07-08 11:01:13 -07:00
Rafael J. Wysocki
99465f12ba ACPI: PM: Drop unused function and function header
Remove a leftover function header and a static inline stub with no
users from the ACPI header file.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2019-07-03 00:13:24 +02:00
Rafael J. Wysocki
c95b7595f8 ACPI: PM: Introduce "poweroff" callbacks for ACPI PM domain and LPSS
In general, it is not correct to call pm_generic_suspend(),
pm_generic_suspend_late() and pm_generic_suspend_noirq() during the
hibernation's "poweroff" transition, because device drivers may
provide special callbacks to be invoked then and the wrappers in
question cause system suspend callbacks to be run.  Unfortunately,
that happens in the ACPI PM domain and ACPI LPSS.

To address this potential issue, introduce "poweroff" callbacks
for the ACPI PM and LPSS that will use pm_generic_poweroff(),
pm_generic_poweroff_late() and pm_generic_poweroff_noirq() as
appropriate.

Fixes: 05087360fd (ACPI / PM: Take SMART_SUSPEND driver flag into account)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2019-07-03 00:13:24 +02:00
Rafael J. Wysocki
3cd7957e85 ACPI: PM: Simplify and fix PM domain hibernation callbacks
First, after a previous change causing all runtime-suspended devices
in the ACPI PM domain (and ACPI LPSS devices) to be resumed before
creating a snapshot image of memory during hibernation, it is not
necessary to worry about the case in which them might be left in
runtime-suspend any more, so get rid of the code related to that from
ACPI PM domain and ACPI LPSS hibernation callbacks.

Second, it is not correct to use pm_generic_resume_early() and
acpi_subsys_resume_noirq() in hibernation "restore" callbacks (which
currently happens in the ACPI PM domain and ACPI LPSS), so introduce
proper _restore_late and _restore_noirq callbacks for the ACPI PM
domain and ACPI LPSS.

Fixes: 05087360fd (ACPI / PM: Take SMART_SUSPEND driver flag into account)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2019-07-03 00:13:24 +02:00
Jeremy Linton
56855a99f3 ACPI/PPTT: Add function to return ACPI 6.3 Identical tokens
ACPI 6.3 adds a flag to indicate that child nodes are all
identical cores. This is useful to authoritatively determine
if a set of (possibly offline) cores are identical or not.

Since the flag doesn't give us a unique id we can generate
one and use it to create bitmaps of sibling nodes, or simply
in a loop to determine if a subset of cores are identical.

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-06-27 16:53:18 +01:00
Yurii Pavlovskyi
e7488e58c7 platform/x86: wmi: Add function to get _UID of WMI device
Add a new function to acpi.h / wmi.c that returns _UID of the ACPI WMI
device. For example, it returns "ATK" for the following declaration in
DSDT:
Device (ATKD)
{
    Name (_HID, "PNP0C14" /* Windows Management Instrumentation Device */)
      // _HID: Hardware ID
    Name (_UID, "ATK")  // _UID: Unique ID
    ..

Generally, it is possible that multiple PNP0C14 ACPI devices are present in
the system as mentioned in the commit message of commit bff431e49f
("ACPI: WMI: Add ACPI-WMI mapping driver").

Therefore the _UID is returned for a specific ACPI device that declares the
given GUID, to which it is also mapped by other methods of wmi module.

Signed-off-by: Yurii Pavlovskyi <yurii.pavlovskyi@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-06-17 15:22:47 +03:00
Thomas Gleixner
c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
Based on 3 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] this program is distributed in the hope that
  it will be useful but without any warranty without even the implied
  warranty of merchantability or fitness for a particular purpose see
  the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] this program is distributed in the hope
  that it will be useful but without any warranty without even the
  implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00
Ard Biesheuvel
621dc2fdce acpi/irq: Implement helper to create hierachical domains
ACPI permits arbitrary producer->consumer interrupt links to be
described in AML, which means a topology such as the following
is perfectly legal:

  Device (EXIU) {
    Name (_HID, "SCX0008")
    Name (_UID, Zero)
    Name (_CRS, ResourceTemplate () {
      ...
    })
  }

  Device (GPIO) {
    Name (_HID, "SCX0007")
    Name (_UID, Zero)
    Name (_CRS, ResourceTemplate () {
      Memory32Fixed (ReadWrite, SYNQUACER_GPIO_BASE, SYNQUACER_GPIO_SIZE)
      Interrupt (ResourceConsumer, Edge, ActiveHigh, ExclusiveAndWake, 0, "\\_SB.EXIU") {
        7,
      }
    })
    ...
  }

The EXIU in this example is the external interrupt unit as can be found
on Socionext SynQuacer based platforms, which converts a block of 32 SPIs
from arbitrary polarity/trigger into level-high, with a separate set
of config/mask/unmask/clear controls.

The existing DT based driver in drivers/irqchip/irq-sni-exiu.c models
this as a hierarchical domain stacked on top of the GIC's irqdomain.
Since the GIC is modeled as a DT node as well, obtaining a reference
to this irqdomain is easily done by going through the parent link.

On ACPI systems, however, the GIC is not modeled as an object in the
namespace, and so device objects cannot refer to it directly. So in
order to obtain the irqdomain reference when driving the EXIU in ACPI
mode, we need a helper that implicitly grabs the default domain as the
parent of the hierarchy for interrupts allocated out of the global GSI
pool.

Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-28 14:54:54 +01:00