* remotes/origin/tmp-2f0de51:
Linux 4.4.38
esp6: Fix integrity verification when ESN are used
esp4: Fix integrity verification when ESN are used
ipv4: Set skb->protocol properly for local output
ipv6: Set skb->protocol properly for local output
Don't feed anything but regular iovec's to blk_rq_map_user_iov
constify iov_iter_count() and iter_is_iovec()
sparc64: fix compile warning section mismatch in find_node()
sparc64: Fix find_node warning if numa node cannot be found
sparc32: Fix inverted invalid_frame_pointer checks on sigreturns
net: ping: check minimum size on ICMP header length
net: avoid signed overflows for SO_{SND|RCV}BUFFORCE
geneve: avoid use-after-free of skb->data
sh_eth: remove unchecked interrupts for RZ/A1
net: bcmgenet: Utilize correct struct device for all DMA operations
packet: fix race condition in packet_set_ring
net/dccp: fix use-after-free in dccp_invalid_packet
netlink: Do not schedule work from sk_destruct
netlink: Call cb->done from a worker thread
net/sched: pedit: make sure that offset is valid
net, sched: respect rcu grace period on cls destruction
net: dsa: bcm_sf2: Ensure we re-negotiate EEE during after link change
l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind()
rtnetlink: fix FDB size computation
af_unix: conditionally use freezable blocking calls in read
net: sky2: Fix shutdown crash
ip6_tunnel: disable caching when the traffic class is inherited
net: check dead netns for peernet2id_alloc()
virtio-net: add a missing synchronize_net()
Linux 4.4.37
arm64: suspend: Reconfigure PSTATE after resume from idle
arm64: mm: Set PSTATE.PAN from the cpu_enable_pan() call
arm64: cpufeature: Schedule enable() calls instead of calling them via IPI
pwm: Fix device reference leak
mwifiex: printk() overflow with 32-byte SSIDs
PCI: Set Read Completion Boundary to 128 iff Root Port supports it (_HPX)
PCI: Export pcie_find_root_port
rcu: Fix soft lockup for rcu_nocb_kthread
ALSA: pcm : Call kill_fasync() in stream lock
x86/traps: Ignore high word of regs->cs in early_fixup_exception()
kasan: update kasan_global for gcc 7
zram: fix unbalanced idr management at hot removal
ARC: Don't use "+l" inline asm constraint
Linux 4.4.36
scsi: mpt3sas: Unblock device after controller reset
flow_dissect: call init_default_flow_dissectors() earlier
mei: fix return value on disconnection
mei: me: fix place for kaby point device ids.
mei: me: disable driver on SPT SPS firmware
drm/radeon: Ensure vblank interrupt is enabled on DPMS transition to on
mpi: Fix NULL ptr dereference in mpi_powm() [ver #3]
parisc: Also flush data TLB in flush_icache_page_asm
parisc: Fix race in pci-dma.c
parisc: Fix races in parisc_setup_cache_timing()
NFSv4.x: hide array-bounds warning
apparmor: fix change_hat not finding hat after policy replacement
cfg80211: limit scan results cache size
tile: avoid using clocksource_cyc2ns with absolute cycle count
scsi: mpt3sas: Fix secure erase premature termination
Fix USB CB/CBI storage devices with CONFIG_VMAP_STACK=y
USB: serial: ftdi_sio: add support for TI CC3200 LaunchPad
USB: serial: cp210x: add ID for the Zone DPMX
usb: chipidea: move the lock initialization to core file
KVM: x86: check for pic and ioapic presence before use
KVM: x86: drop error recovery in em_jmp_far and em_ret_far
iommu/vt-d: Fix IOMMU lookup for SR-IOV Virtual Functions
iommu/vt-d: Fix PASID table allocation
sched: tune: Fix lacking spinlock initialization
UPSTREAM: trace: Update documentation for mono, mono_raw and boot clock
UPSTREAM: trace: Add an option for boot clock as trace clock
UPSTREAM: timekeeping: Add a fast and NMI safe boot clock
ANDROID: goldfish_pipe: fix allmodconfig build
ANDROID: goldfish: goldfish_pipe: fix locking errors
ANDROID: video: goldfishfb: fix platform_no_drv_owner.cocci warnings
ANDROID: goldfish_pipe: fix call_kern.cocci warnings
arm64: rename ranchu defconfig to ranchu64
ANDROID: arch: x86: disable pic for Android toolchain
ANDROID: goldfish_pipe: An implementation of more parallel pipe
ANDROID: goldfish_pipe: bugfixes and performance improvements.
ANDROID: goldfish: Add goldfish sync driver
ANDROID: goldfish: add ranchu defconfigs
ANDROID: goldfish_audio: Clear audio read buffer status after each read
ANDROID: goldfish_events: no extra EV_SYN; register goldfish
ANDROID: goldfish_fb: Set pixclock = 0
ANDROID: goldfish: Enable ACPI-based enumeration for goldfish audio
ANDROID: goldfish: Enable ACPI-based enumeration for goldfish framebuffer
ANDROID: video: goldfishfb: add devicetree bindings
BACKPORT: staging: goldfish: audio: fix compiliation on arm
BACKPORT: Input: goldfish_events - enable ACPI-based enumeration for goldfish events
BACKPORT: goldfish: Enable ACPI-based enumeration for goldfish battery
BACKPORT: drivers: tty: goldfish: Add device tree bindings
BACKPORT: tty: goldfish: support platform_device with id -1
BACKPORT: Input: goldfish_events - add devicetree bindings
BACKPORT: power: goldfish_battery: add devicetree bindings
BACKPORT: staging: goldfish: audio: add devicetree bindings
ANDROID: usb: gadget: function: cleanup: Add blank line after declaration
cpufreq: sched: Fix kernel crash on accessing sysfs file
usb: gadget: f_mtp: simplify ptp NULL pointer check
cgroup: replace unified-hierarchy.txt with a proper cgroup v2 documentation
cgroup: rename Documentation/cgroups/ to Documentation/cgroup-legacy/
cgroup: replace __DEVEL__sane_behavior with cgroup2 fs type
writeback: initialize inode members that track writeback history
mm: page_alloc: generalize the dirty balance reserve
block: fix module reference leak on put_disk() call for cgroups throttle
Linux 4.4.35
netfilter: nft_dynset: fix element timeout for HZ != 1000
IB/cm: Mark stale CM id's whenever the mad agent was unregistered
IB/uverbs: Fix leak of XRC target QPs
IB/core: Avoid unsigned int overflow in sg_alloc_table
IB/mlx5: Fix fatal error dispatching
IB/mlx5: Use cache line size to select CQE stride
IB/mlx4: Fix create CQ error flow
IB/mlx4: Check gid_index return value
PM / sleep: don't suspend parent when async child suspend_{noirq, late} fails
PM / sleep: fix device reference leak in test_suspend
uwb: fix device reference leaks
mfd: core: Fix device reference leak in mfd_clone_cell
iwlwifi: pcie: fix SPLC structure parsing
rtc: omap: Fix selecting external osc
clk: mmp: mmp2: fix return value check in mmp2_clk_init()
clk: mmp: pxa168: fix return value check in pxa168_clk_init()
clk: mmp: pxa910: fix return value check in pxa910_clk_init()
drm/amdgpu: Attach exclusive fence to prime exported bo's. (v5)
crypto: caam - do not register AES-XTS mode on LP units
ext4: sanity check the block and cluster size at mount time
kbuild: Steal gcc's pie from the very beginning
x86/kexec: add -fno-PIE
scripts/has-stack-protector: add -fno-PIE
kbuild: add -fno-PIE
i2c: mux: fix up dependencies
can: bcm: fix warning in bcm_connect/proc_register
mfd: intel-lpss: Do not put device in reset state on suspend
fuse: fix fuse_write_end() if zero bytes were copied
KVM: Disable irq while unregistering user notifier
KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr
x86/cpu/AMD: Fix cpu_llc_id for AMD Fam17h systems
Linux 4.4.34
sparc64: Delete now unused user copy fixup functions.
sparc64: Delete now unused user copy assembler helpers.
sparc64: Convert U3copy_{from,to}_user to accurate exception reporting.
sparc64: Convert NG2copy_{from,to}_user to accurate exception reporting.
sparc64: Convert NGcopy_{from,to}_user to accurate exception reporting.
sparc64: Convert NG4copy_{from,to}_user to accurate exception reporting.
sparc64: Convert U1copy_{from,to}_user to accurate exception reporting.
sparc64: Convert GENcopy_{from,to}_user to accurate exception reporting.
sparc64: Convert copy_in_user to accurate exception reporting.
sparc64: Prepare to move to more saner user copy exception handling.
sparc64: Delete __ret_efault.
sparc64: Handle extremely large kernel TLB range flushes more gracefully.
sparc64: Fix illegal relative branches in hypervisor patched TLB cross-call code.
sparc64: Fix instruction count in comment for __hypervisor_flush_tlb_pending.
sparc64: Fix illegal relative branches in hypervisor patched TLB code.
sparc64: Handle extremely large kernel TSB range flushes sanely.
sparc: Handle negative offsets in arch_jump_label_transform
sparc64 mm: Fix base TSB sizing when hugetlb pages are used
sparc: serial: sunhv: fix a double lock bug
sparc: Don't leak context bits into thread->fault_address
tty: Prevent ldisc drivers from re-using stale tty fields
tcp: take care of truncations done by sk_filter()
ipv4: use new_gw for redirect neigh lookup
net: __skb_flow_dissect() must cap its return value
sock: fix sendmmsg for partial sendmsg
fib_trie: Correct /proc/net/route off by one error
sctp: assign assoc_id earlier in __sctp_connect
ipv6: dccp: add missing bind_conflict to dccp_ipv6_mapped
ipv6: dccp: fix out of bound access in dccp_v6_err()
dccp: fix out of bound access in dccp_v4_err()
dccp: do not send reset to already closed sockets
tcp: fix potential memory corruption
ip6_tunnel: Clear IP6CB in ip6tunnel_xmit()
bgmac: stop clearing DMA receive control register right after it is set
net: mangle zero checksum in skb_checksum_help()
net: clear sk_err_soft in sk_clone_lock()
dctcp: avoid bogus doubling of cwnd after loss
ARM: 8485/1: cpuidle: remove cpu parameter from the cpuidle_ops suspend hook
Linux 4.4.33
netfilter: fix namespace handling in nf_log_proc_dostring
btrfs: qgroup: Prevent qgroup->reserved from going subzero
mmc: mxs: Initialize the spinlock prior to using it
ASoC: sun4i-codec: return error code instead of NULL when create_card fails
ACPI / APEI: Fix incorrect return value of ghes_proc()
i40e: fix call of ndo_dflt_bridge_getlink()
hwrng: core - Don't use a stack buffer in add_early_randomness()
lib/genalloc.c: start search from start of chunk
mei: bus: fix received data size check in NFC fixup
iommu/vt-d: Fix dead-locks in disable_dmar_iommu() path
iommu/amd: Free domain id when free a domain of struct dma_ops_domain
tty/serial: at91: fix hardware handshake on Atmel platforms
dmaengine: at_xdmac: fix spurious flag status for mem2mem transfers
drm/i915: Respect alternate_ddc_pin for all DDI ports
KVM: MIPS: Precalculate MMIO load resume PC
scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk
scsi: qla2xxx: Fix scsi scan hang triggered if adapter fails during init
iio: orientation: hid-sensor-rotation: Add PM function (fix non working driver)
iio: hid-sensors: Increase the precision of scale to fix wrong reading interpretation.
clk: qoriq: Don't allow CPU clocks higher than starting value
toshiba-wmi: Fix loading the driver on non Toshiba laptops
drbd: Fix kernel_sendmsg() usage - potential NULL deref
usb: gadget: u_ether: remove interrupt throttling
USB: cdc-acm: fix TIOCMIWAIT
staging: nvec: remove managed resource from PS2 driver
Revert "staging: nvec: ps2: change serio type to passthrough"
drivers: staging: nvec: remove bogus reset command for PS/2 interface
staging: iio: ad5933: avoid uninitialized variable in error case
pinctrl: cherryview: Prevent possible interrupt storm on resume
pinctrl: cherryview: Serialize register access in suspend/resume
ARC: timer: rtc: implement read loop in "C" vs. inline asm
s390/hypfs: Use get_free_page() instead of kmalloc to ensure page alignment
coredump: fix unfreezable coredumping task
swapfile: fix memory corruption via malformed swapfile
dib0700: fix nec repeat handling
ASoC: cs4270: fix DAPM stream name mismatch
ALSA: info: Limit the proc text input size
ALSA: info: Return error for invalid read/write
arm64: Enable KPROBES/HIBERNATION/CORESIGHT in defconfig
arm64: kvm: allows kvm cpu hotplug
arm64: KVM: Register CPU notifiers when the kernel runs at HYP
arm64: KVM: Skip HYP setup when already running in HYP
arm64: hyp/kvm: Make hyp-stub reject kvm_call_hyp()
arm64: hyp/kvm: Make hyp-stub extensible
arm64: kvm: Move lr save/restore from do_el2_call into EL1
arm64: kvm: deal with kernel symbols outside of linear mapping
arm64: introduce KIMAGE_VADDR as the virtual base of the kernel region
ANDROID: video: adf: Avoid directly referencing user pointers
ANDROID: usb: gadget: audio_source: fix comparison of distinct pointer types
android: binder: support for file-descriptor arrays.
android: binder: support for scatter-gather.
android: binder: add extra size to allocator.
android: binder: refactor binder_transact()
android: binder: support multiple /dev instances.
android: binder: deal with contexts in debugfs.
android: binder: support multiple context managers.
android: binder: split flat_binder_object.
disable aio support in recommended configuration
Linux 4.4.32
scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression
drm/radeon: fix DP mode validation
drm/radeon/dp: add back special handling for NUTMEG
drm/amdgpu: fix DP mode validation
drm/amdgpu/dp: add back special handling for NUTMEG
KVM: MIPS: Drop other CPU ASIDs on guest MMU changes
Revert KVM: MIPS: Drop other CPU ASIDs on guest MMU changes
of: silence warnings due to max() usage
packet: on direct_xmit, limit tso and csum to supported devices
sctp: validate chunk len before actually using it
net sched filters: fix notification of filter delete with proper handle
udp: fix IP_CHECKSUM handling
net: sctp, forbid negative length
ipv4: use the right lock for ping_group_range
ipv4: disable BH in set_ping_group_range()
net: add recursion limit to GRO
rtnetlink: Add rtnexthop offload flag to compare mask
bridge: multicast: restore perm router ports on multicast enable
net: pktgen: remove rcu locking in pktgen_change_name()
ipv6: correctly add local routes when lo goes up
ip6_tunnel: fix ip6_tnl_lookup
ipv6: tcp: restore IP6CB for pktoptions skbs
netlink: do not enter direct reclaim from netlink_dump()
packet: call fanout_release, while UNREGISTERING a netdev
net: Add netdev all_adj_list refcnt propagation to fix panic
net/sched: act_vlan: Push skb->data to mac_header prior calling skb_vlan_*() functions
net: pktgen: fix pkt_size
net: fec: set mac address unconditionally
tg3: Avoid NULL pointer dereference in tg3_io_error_detected()
ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route
ip6_gre: fix flowi6_proto value in ip6gre_xmit_other()
tcp: fix a compile error in DBGUNDO()
tcp: fix wrong checksum calculation on MTU probing
net: avoid sk_forward_alloc overflows
tcp: fix overflow in __tcp_retransmit_skb()
arm64/kvm: fix build issue on kvm debug
arm64: ptdump: Indicate whether memory should be faulting
arm64: Add support for ARCH_SUPPORTS_DEBUG_PAGEALLOC
arm64: Drop alloc function from create_mapping
arm64: allow vmalloc regions to be set with set_memory_*
arm64: kernel: implement ACPI parking protocol
arm64: mm: create new fine-grained mappings at boot
arm64: ensure _stext and _etext are page-aligned
arm64: mm: allow passing a pgdir to alloc_init_*
arm64: mm: allocate pagetables anywhere
arm64: mm: use fixmap when creating page tables
arm64: mm: add functions to walk tables in fixmap
arm64: mm: add __{pud,pgd}_populate
arm64: mm: avoid redundant __pa(__va(x))
Linux 4.4.31
HID: usbhid: add ATEN CS962 to list of quirky devices
ubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap()
kvm: x86: Check memopp before dereference (CVE-2016-8630)
tty: vt, fix bogus division in csi_J
usb: dwc3: Fix size used in dma_free_coherent()
pwm: Unexport children before chip removal
UBI: fastmap: scrub PEB when bitflips are detected in a free PEB EC header
Disable "frame-address" warning
smc91x: avoid self-comparison warning
cgroup: avoid false positive gcc-6 warning
drm/exynos: fix error handling in exynos_drm_subdrv_open
mm/cma: silence warnings due to max() usage
ARM: 8584/1: floppy: avoid gcc-6 warning
powerpc/ptrace: Fix out of bounds array access warning
x86/xen: fix upper bound of pmd loop in xen_cleanhighmap()
perf build: Fix traceevent plugins build race
drm/dp/mst: Check peer device type before attempting EDID read
drm/radeon: drop register readback in cayman_cp_int_cntl_setup
drm/radeon/si_dpm: workaround for SI kickers
drm/radeon/si_dpm: Limit clocks on HD86xx part
Revert "drm/radeon: fix DP link training issue with second 4K monitor"
mmc: dw_mmc-pltfm: fix the potential NULL pointer dereference
scsi: arcmsr: Send SYNCHRONIZE_CACHE command to firmware
scsi: scsi_debug: Fix memory leak if LBP enabled and module is unloaded
scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices
mac80211: discard multicast and 4-addr A-MSDUs
firewire: net: fix fragmented datagram_size off-by-one
firewire: net: guard against rx buffer overflows
Input: i8042 - add XMG C504 to keyboard reset table
dm mirror: fix read error on recovery after default leg failure
virtio: console: Unlock vqs while freeing buffers
virtio_ring: Make interrupt suppression spec compliant
parisc: Ensure consistent state when switching to kernel stack at syscall entry
ovl: fsync after copy-up
KVM: MIPS: Make ERET handle ERL before EXL
KVM: x86: fix wbinvd_dirty_mask use-after-free
dm: free io_barrier after blk_cleanup_queue call
USB: serial: cp210x: fix tiocmget error handling
tty: limit terminal size to 4M chars
xhci: add restart quirk for Intel Wildcatpoint PCH
hv: do not lose pending heartbeat vmbus packets
vt: clear selection before resizing
Fix potential infoleak in older kernels
GenWQE: Fix bad page access during abort of resource allocation
usb: increase ohci watchdog delay to 275 msec
xhci: use default USB_RESUME_TIMEOUT when resuming ports.
USB: serial: ftdi_sio: add support for Infineon TriBoard TC2X7
USB: serial: fix potential NULL-dereference at probe
usb: gadget: function: u_ether: don't starve tx request queue
mei: txe: don't clean an unprocessed interrupt cause.
ubifs: Fix regression in ubifs_readdir()
ubifs: Abort readdir upon error
btrfs: fix races on root_log_ctx lists
ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct
ANDROID: binder: Add strong ref checks
ALSA: hda - Fix headset mic detection problem for two Dell laptops
ALSA: hda - Adding a new group of pin cfg into ALC295 pin quirk table
ALSA: hda - allow 40 bit DMA mask for NVidia devices
ALSA: hda - Raise AZX_DCAPS_RIRB_DELAY handling into top drivers
ALSA: hda - Merge RIRB_PRE_DELAY into CTX_WORKAROUND caps
ALSA: usb-audio: Add quirk for Syntek STK1160
KEYS: Fix short sprintf buffer in /proc/keys show function
mm: memcontrol: do not recurse in direct reclaim
mm/list_lru.c: avoid error-path NULL pointer deref
libxfs: clean up _calc_dquots_per_chunk
h8300: fix syscall restarting
drm/dp/mst: Clear port->pdt when tearing down the i2c adapter
i2c: core: fix NULL pointer dereference under race condition
i2c: xgene: Avoid dma_buffer overrun
arm64:cpufeature ARM64_NCAPS is the indicator of last feature
arm64: hibernate: Refuse to hibernate if the boot cpu is offline
PM / sleep: Add support for read-only sysfs attributes
arm64: kernel: Add support for hibernate/suspend-to-disk
arm64: mm: add functions to walk page tables by PA
arm64: mm: move pte_* macros
PM / Hibernate: Call flush_icache_range() on pages restored in-place
arm64: Add new asm macro copy_page
arm64: Promote KERNEL_START/KERNEL_END definitions to a header file
arm64: kernel: Include _AC definition in page.h
arm64: Change cpu_resume() to enable mmu early then access sleep_sp by va
arm64: kernel: Rework finisher callback out of __cpu_suspend_enter()
arm64: Cleanup SCTLR flags
arm64: Fold proc-macros.S into assembler.h
arm/arm64: KVM: Add hook for C-based stage2 init
arm/arm64: KVM: Detect vGIC presence at runtime
arm64: KVM: Add support for 16-bit VMID
arm: KVM: Make kvm_arm.h friendly to assembly code
arm/arm64: KVM: Remove unreferenced S2_PGD_ORDER
arm64: KVM: debug: Remove spurious inline attributes
ARM: KVM: Cleanup exception injection
arm64: KVM: Remove weak attributes
arm64: KVM: Cleanup asm-offset.c
arm64: KVM: Turn system register numbers to an enum
arm64: KVM: VHE: Patch out use of HVC
arm64: Add ARM64_HAS_VIRT_HOST_EXTN feature
arm/arm64: Add new is_kernel_in_hyp_mode predicate
arm64: KVM: Move away from the assembly version of the world switch
arm64: KVM: Map the kernel RO section into HYP
arm64: KVM: Add compatibility aliases
arm64: KVM: Implement vgic-v3 save/restore
arm64: KVM: Add panic handling
arm64: KVM: HYP mode entry points
arm64: KVM: Implement TLB handling
arm64: KVM: Implement fpsimd save/restore
arm64: KVM: Implement the core world switch
arm64: KVM: Add patchable function selector
arm64: KVM: Implement guest entry
arm64: KVM: Implement debug save/restore
arm64: KVM: Implement 32bit system register save/restore
arm64: KVM: Implement system register save/restore
arm64: KVM: Implement timer save/restore
arm64: KVM: Implement vgic-v2 save/restore
arm64: KVM: Add a HYP-specific header file
KVM: arm/arm64: vgic-v3: Make the LR indexing macro public
arm64: Add macros to read/write system registers
Linux 4.4.30
Revert "fix minor infoleak in get_user_ex()"
Revert "x86/mm: Expand the exception table logic to allow new handling options"
Linux 4.4.29
ARM: pxa: pxa_cplds: fix interrupt handling
powerpc/nvram: Fix an incorrect partition merge
mpt3sas: Don't spam logs if logging level is 0
perf symbols: Fixup symbol sizes before picking best ones
perf symbols: Check symbol_conf.allow_aliases for kallsyms loading too
perf hists browser: Fix event group display
clk: divider: Fix clk_divider_round_rate() to use clk_readl()
clk: qoriq: fix a register offset error
s390/con3270: fix insufficient space padding
s390/con3270: fix use of uninitialised data
s390/cio: fix accidental interrupt enabling during resume
x86/mm: Expand the exception table logic to allow new handling options
dmaengine: ipu: remove bogus NO_IRQ reference
power: bq24257: Fix use of uninitialized pointer bq->charger
staging: r8188eu: Fix scheduling while atomic splat
ASoC: dapm: Fix kcontrol creation for output driver widget
ASoC: dapm: Fix value setting for _ENUM_DOUBLE MUX's second channel
ASoC: dapm: Fix possible uninitialized variable in snd_soc_dapm_get_volsw()
ASoC: topology: Fix error return code in soc_tplg_dapm_widget_create()
hwrng: omap - Only fail if pm_runtime_get_sync returns < 0
crypto: arm/ghash-ce - add missing async import/export
crypto: gcm - Fix IV buffer size in crypto_gcm_setkey
mwifiex: correct aid value during tdls setup
spi: spi-fsl-dspi: Drop extra spi_master_put in device remove function
ARM: clk-imx35: fix name for ckil clk
uio: fix dmem_region_start computation
genirq/generic_chip: Add irq_unmap callback
perf stat: Fix interval output values
powerpc/eeh: Null check uses of eeh_pe_bus_get
tunnels: Remove encapsulation offloads on decap.
tunnels: Don't apply GRO to multiple layers of encapsulation.
ipip: Properly mark ipip GRO packets as encapsulated.
posix_acl: Clear SGID bit when setting file permissions
brcmfmac: avoid potential stack overflow in brcmf_cfg80211_start_ap()
mm/hugetlb: fix memory offline with hugepage size > memory block size
drm/i915: Unalias obj->phys_handle and obj->userptr
drm/i915: Account for TSEG size when determining 865G stolen base
Revert "drm/i915: Check live status before reading edid"
drm/i915/gen9: fix the WaWmMemoryReadLatency implementation
xenbus: don't look up transaction IDs for ordinary writes
drm/vmwgfx: Limit the user-space command buffer size
drm/radeon: change vblank_time's calculation method to reduce computational error.
drm/radeon/si/dpm: fix phase shedding setup
drm/radeon: narrow asic_init for virtualization
drm/amdgpu: change vblank_time's calculation method to reduce computational error.
drm/amdgpu/dce11: add missing drm_mode_config_cleanup call
drm/amdgpu/dce11: disable hpd on local panels
drm/amdgpu/dce8: disable hpd on local panels
drm/amdgpu/dce10: disable hpd on local panels
drm/amdgpu: fix IB alignment for UVD
drm/prime: Pass the right module owner through to dma_buf_export()
Linux 4.4.28
target: Don't override EXTENDED_COPY xcopy_pt_cmd SCSI status code
target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLE
target: Re-add missing SCF_ACK_KREF assignment in v4.1.y
ubifs: Fix xattr_names length in exit paths
jbd2: fix incorrect unlock on j_list_lock
ext4: do not advertise encryption support when disabled
mmc: rtsx_usb_sdmmc: Handle runtime PM while changing the led
mmc: rtsx_usb_sdmmc: Avoid keeping the device runtime resumed when unused
mmc: core: Annotate cmd_hdr as __le32
powerpc/mm: Prevent unlikely crash in copro_calculate_slb()
ceph: fix error handling in ceph_read_iter
arm64: kernel: Init MDCR_EL2 even in the absence of a PMU
arm64: percpu: rewrite ll/sc loops in assembly
memstick: rtsx_usb_ms: Manage runtime PM when accessing the device
memstick: rtsx_usb_ms: Runtime resume the device when polling for cards
isofs: Do not return EACCES for unknown filesystems
irqchip/gic-v3-its: Fix entry size mask for GITS_BASER
s390/mm: fix gmap tlb flush issues
Using BUG_ON() as an assert() is _never_ acceptable
mm: filemap: fix mapping->nrpages double accounting in fuse
mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page()
acpi, nfit: check for the correct event code in notifications
net/mlx4_core: Allow resetting VF admin mac to zero
bnx2x: Prevent false warning for lack of FC NPIV
PKCS#7: Don't require SpcSpOpusInfo in Authenticode pkcs7 signatures
hpsa: correct skipping masked peripherals
sd: Fix rw_max for devices that report an optimal xfer size
irqchip/gicv3: Handle loop timeout proper
kvm: x86: memset whole irq_eoi
x86/e820: Don't merge consecutive E820_PRAM ranges
blkcg: Unlock blkcg_pol_mutex only once when cpd == NULL
Fix regression which breaks DFS mounting
Cleanup missing frees on some ioctls
Do not send SMB3 SET_INFO request if nothing is changing
SMB3: GUIDs should be constructed as random but valid uuids
Set previous session id correctly on SMB3 reconnect
Display number of credits available
Clarify locking of cifs file and tcon structures and make more granular
fs/cifs: keep guid when assigning fid to fileinfo
cifs: Limit the overall credit acquired
fs/super.c: fix race between freeze_super() and thaw_super()
arc: don't leak bits of kernel stack into coredump
lightnvm: ensure that nvm_dev_ops can be used without CONFIG_NVM
ipc/sem.c: fix complex_count vs. simple op race
mm: filemap: don't plant shadow entries without radix tree node
metag: Only define atomic_dec_if_positive conditionally
scsi: Fix use-after-free
NFSv4.2: Fix a reference leak in nfs42_proc_layoutstats_generic
NFSv4: Open state recovery must account for file permission changes
NFSv4: nfs4_copy_delegation_stateid() must fail if the delegation is invalid
NFSv4: Don't report revoked delegations as valid in nfs_have_delegation()
sunrpc: fix write space race causing stalls
Input: elantech - add Fujitsu Lifebook E556 to force crc_enabled
Input: elantech - force needed quirks on Fujitsu H760
Input: i8042 - skip selftest on ASUS laptops
lib: add "on"/"off" support to kstrtobool
lib: update single-char callers of strtobool()
lib: move strtobool() to kstrtobool()
MIPS: ptrace: Fix regs_return_value for kernel context
MIPS: Fix -mabi=64 build of vdso.lds
ALSA: hda - Fix a failure of micmute led when having multi adcs
cx231xx: fix GPIOs for Pixelview SBTVD hybrid
cx231xx: don't return error on success
mb86a20s: fix demod settings
mb86a20s: fix the locking logic
ovl: copy_up_xattr(): use strnlen
ovl: Fix info leak in ovl_lookup_temp()
fbdev/efifb: Fix 16 color palette entry calculation
scsi: zfcp: spin_lock_irqsave() is not nestable
zfcp: trace full payload of all SAN records (req,resp,iels)
zfcp: fix payload trace length for SAN request&response
zfcp: fix D_ID field with actual value on tracing SAN responses
zfcp: restore tracing of handle for port and LUN with HBA records
zfcp: trace on request for open and close of WKA port
zfcp: restore: Dont use 0 to indicate invalid LUN in rec trace
zfcp: retain trace level for SCSI and HBA FSF response records
zfcp: close window with unblocked rport during rport gone
zfcp: fix ELS/GS request&response length for hardware data router
zfcp: fix fc_host port_type with NPIV
ubi: Deal with interrupted erasures in WL
powerpc/pseries: Fix stack corruption in htpe code
powerpc/64: Fix incorrect return value from __copy_tofrom_user
powerpc/powernv: Use CPU-endian PEST in pnv_pci_dump_p7ioc_diag_data()
powerpc/powernv: Use CPU-endian hub diag-data type in pnv_eeh_get_and_dump_hub_diag()
powerpc/powernv: Pass CPU-endian PE number to opal_pci_eeh_freeze_clear()
powerpc/vdso64: Use double word compare on pointers
dm crypt: fix crash on exit
dm mpath: check if path's request_queue is dying in activate_path()
dm: return correct error code in dm_resume()'s retry loop
dm: mark request_queue dead before destroying the DM device
perf intel-pt: Fix MTC timestamp calculation for large MTC periods
perf intel-pt: Fix estimated timestamps for cycle-accurate mode
perf intel-pt: Fix snapshot overlap detection decoder errors
pstore/ram: Use memcpy_fromio() to save old buffer
pstore/ram: Use memcpy_toio instead of memcpy
pstore/core: drop cmpxchg based updates
pstore/ramoops: fixup driver removal
parisc: Increase initial kernel mapping size
parisc: Fix kernel memory layout regarding position of __gp
parisc: Increase KERNEL_INITIAL_SIZE for 32-bit SMP kernels
cpufreq: intel_pstate: Fix unsafe HWP MSR access
platform: don't return 0 from platform_get_irq[_byname]() on error
PCI: Mark Atheros AR9580 to avoid bus reset
mmc: sdhci: cast unsigned int to unsigned long long to avoid unexpeted error
mmc: block: don't use CMD23 with very old MMC cards
rtlwifi: Fix missing country code for Great Britain
PM / devfreq: event: remove duplicate devfreq_event_get_drvdata()
clk: imx6: initialize GPU clocks
regulator: tps65910: Work around silicon erratum SWCZ010
mei: me: add kaby point device ids
gpio: mpc8xxx: Correct irq handler function
cgroup: Change from CAP_SYS_NICE to CAP_SYS_RESOURCE for cgroup migration permissions
UPSTREAM: cpu/hotplug: Handle unbalanced hotplug enable/disable
UPSTREAM: arm64: kaslr: fix breakage with CONFIG_MODVERSIONS=y
UPSTREAM: arm64: kaslr: keep modules close to the kernel when DYNAMIC_FTRACE=y
cgroup: Remove leftover instances of allow_attach
BACKPORT: lib: harden strncpy_from_user
CHROMIUM: cgroups: relax permissions on moving tasks between cgroups
CHROMIUM: remove Android's cgroup generic permissions checks
Linux 4.4.27
cfq: fix starvation of asynchronous writes
vfs: move permission checking into notify_change() for utimes(NULL)
dlm: free workqueues after the connections
crypto: vmx - Fix memory corruption caused by p8_ghash
crypto: ghash-generic - move common definitions to a new header file
ext4: release bh in make_indexed_dir
ext4: allow DAX writeback for hole punch
ext4: fix memory leak in ext4_insert_range()
ext4: reinforce check of i_dtime when clearing high fields of uid and gid
ext4: enforce online defrag restriction for encrypted files
scsi: ibmvfc: Fix I/O hang when port is not mapped
scsi: arcmsr: Simplify user_len checking
scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer()
async_pq_val: fix DMA memory leak
reiserfs: switch to generic_{get,set,remove}xattr()
reiserfs: Unlock superblock before calling reiserfs_quota_on_mount()
ASoC: Intel: Atom: add a missing star in a memcpy call
brcmfmac: fix memory leak in brcmf_fill_bss_param
i40e: avoid NULL pointer dereference and recursive errors on early PCI error
fuse: fix killing s[ug]id in setattr
fuse: invalidate dir dentry after chmod
fuse: listxattr: verify xattr list
drivers: base: dma-mapping: page align the size when unmap_kernel_range
btrfs: assign error values to the correct bio structs
serial: 8250_dw: Check the data->pclk when get apb_pclk
arm64: Use PoU cache instr for I/D coherency
arm64: mm: add code to safely replace TTBR1_EL1
arm64: mm: place __cpu_setup in .text
arm64: add function to install the idmap
arm64: unmap idmap earlier
arm64: unify idmap removal
arm64: mm: place empty_zero_page in bss
arm64: head.S: use memset to clear BSS
arm64: mm: specialise pagetable allocators
arm64: mm: remove pointless PAGE_MASKing
asm-generic: Fix local variable shadow in __set_fixmap_offset
arm64: mm: fold alternatives into .init
ARM: 8511/1: ARM64: kernel: PSCI: move PSCI idle management code to drivers/firmware
ARM: 8481/2: drivers: psci: replace psci firmware calls
ARM: 8480/2: arm64: add implementation for arm-smccc
ARM: 8479/2: add implementation for arm-smccc
ARM: 8478/2: arm/arm64: add arm-smccc
ARM: 8510/1: rework ARM_CPU_SUSPEND dependencies
ARM: 8458/1: bL_switcher: add GIC dependency
Linux 4.4.26
mm: remove gup_flags FOLL_WRITE games from __get_user_pages()
x86/build: Build compressed x86 kernels as PIE
arm64: Remove stack duplicating code from jprobes
arm64: kprobes: Add KASAN instrumentation around stack accesses
arm64: kprobes: Cleanup jprobe_return
arm64: kprobes: Fix overflow when saving stack
arm64: kprobes: WARN if attempting to step with PSTATE.D=1
kprobes: Add arm64 case in kprobe example module
arm64: Add kernel return probes support (kretprobes)
arm64: Add trampoline code for kretprobes
arm64: kprobes instruction simulation support
arm64: Treat all entry code as non-kprobe-able
arm64: Blacklist non-kprobe-able symbol
arm64: Kprobes with single stepping support
arm64: add conditional instruction simulation support
arm64: Add more test functions to insn.c
arm64: Add HAVE_REGS_AND_STACK_ACCESS_API feature
Linux 4.4.25
tpm_crb: fix crb_req_canceled behavior
tpm: fix a race condition in tpm2_unseal_trusted()
ima: use file_dentry()
ARM: cpuidle: Fix error return code
ARM: dts: MSM8064 remove flags from SPMI/MPP IRQs
ARM: dts: mvebu: armada-390: add missing compatibility string and bracket
x86/dumpstack: Fix x86_32 kernel_stack_pointer() previous stack access
x86/irq: Prevent force migration of irqs which are not in the vector domain
x86/boot: Fix kdump, cleanup aborted E820_PRAM max_pfn manipulation
KVM: PPC: BookE: Fix a sanity check
KVM: MIPS: Drop other CPU ASIDs on guest MMU changes
KVM: PPC: Book3s PR: Allow access to unprivileged MMCR2 register
mfd: wm8350-i2c: Make sure the i2c regmap functions are compiled
mfd: 88pm80x: Double shifting bug in suspend/resume
mfd: atmel-hlcdc: Do not sleep in atomic context
mfd: rtsx_usb: Avoid setting ucr->current_sg.status
ALSA: usb-line6: use the same declaration as definition in header for MIDI manufacturer ID
ALSA: usb-audio: Extend DragonFly dB scale quirk to cover other variants
ALSA: ali5451: Fix out-of-bound position reporting
timekeeping: Fix __ktime_get_fast_ns() regression
time: Add cycles to nanoseconds translation
mm: Fix build for hardened usercopy
ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct
ANDROID: binder: Add strong ref checks
UPSTREAM: staging/android/ion : fix a race condition in the ion driver
ANDROID: android-base: CONFIG_HARDENED_USERCOPY=y
UPSTREAM: fs/proc/kcore.c: Add bounce buffer for ktext data
UPSTREAM: fs/proc/kcore.c: Make bounce buffer global for read
BACKPORT: arm64: Correctly bounds check virt_addr_valid
Fix a build breakage in IO latency hist code.
UPSTREAM: efi: include asm/early_ioremap.h not asm/efi.h to get early_memremap
UPSTREAM: ia64: split off early_ioremap() declarations into asm/early_ioremap.h
FROMLIST: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN
FROMLIST: arm64: xen: Enable user access before a privcmd hvc call
FROMLIST: arm64: Handle faults caused by inadvertent user access with PAN enabled
FROMLIST: arm64: Disable TTBR0_EL1 during normal kernel execution
FROMLIST: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1
FROMLIST: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro
FROMLIST: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros
UPSTREAM: arm64: Handle el1 synchronous instruction aborts cleanly
UPSTREAM: arm64: include alternative handling in dcache_by_line_op
UPSTREAM: arm64: fix "dc cvau" cache operation on errata-affected core
UPSTREAM: Revert "arm64: alternatives: add enable parameter to conditional asm macros"
UPSTREAM: arm64: Add new asm macro copy_page
UPSTREAM: arm64: kill ESR_LNX_EXEC
UPSTREAM: arm64: add macro to extract ESR_ELx.EC
UPSTREAM: arm64: mm: mark fault_info table const
UPSTREAM: arm64: fix dump_instr when PAN and UAO are in use
BACKPORT: arm64: Fold proc-macros.S into assembler.h
UPSTREAM: arm64: choose memstart_addr based on minimum sparsemem section alignment
UPSTREAM: arm64/mm: ensure memstart_addr remains sufficiently aligned
UPSTREAM: arm64/kernel: fix incorrect EL0 check in inv_entry macro
UPSTREAM: arm64: Add macros to read/write system registers
UPSTREAM: arm64/efi: refactor EFI init and runtime code for reuse by 32-bit ARM
UPSTREAM: arm64/efi: split off EFI init and runtime code for reuse by 32-bit ARM
UPSTREAM: arm64/efi: mark UEFI reserved regions as MEMBLOCK_NOMAP
BACKPORT: arm64: only consider memblocks with NOMAP cleared for linear mapping
UPSTREAM: mm/memblock: add MEMBLOCK_NOMAP attribute to memblock memory table
ANDROID: dm: android-verity: Remove fec_header location constraint
BACKPORT: audit: consistently record PIDs with task_tgid_nr()
android-base.cfg: Enable kernel ASLR
UPSTREAM: vmlinux.lds.h: allow arch specific handling of ro_after_init data section
UPSTREAM: arm64: spinlock: fix spin_unlock_wait for LSE atomics
UPSTREAM: arm64: avoid TLB conflict with CONFIG_RANDOMIZE_BASE
UPSTREAM: arm64: Only select ARM64_MODULE_PLTS if MODULES=y
sched: Add Kconfig option DEFAULT_USE_ENERGY_AWARE to set ENERGY_AWARE feature flag
sched/fair: remove printk while schedule is in progress
ANDROID: fs: FS tracepoints to track IO.
sched/walt: Drop arch-specific timer access
ANDROID: fiq_debugger: Pass task parameter to unwind_frame()
eas/sched/fair: Fixing comments in find_best_target.
input: keyreset: switch to orderly_reboot
UPSTREAM: tun: fix transmit timestamp support
UPSTREAM: arch/arm/include/asm/pgtable-3level.h: add pmd_mkclean for THP
net: inet: diag: expose the socket mark to privileged processes.
net: diag: make udp_diag_destroy work for mapped addresses.
net: diag: support SOCK_DESTROY for UDP sockets
net: diag: allow socket bytecode filters to match socket marks
net: diag: slightly refactor the inet_diag_bc_audit error checks.
net: diag: Add support to filter on device index
UPSTREAM: brcmfmac: avoid potential stack overflow in brcmf_cfg80211_start_ap()
Linux 4.4.24
ALSA: hda - Add the top speaker pin config for HP Spectre x360
ALSA: hda - Fix headset mic detection problem for several Dell laptops
ACPICA: acpi_get_sleep_type_data: Reduce warnings
ALSA: hda - Adding one more ALC255 pin definition for headset problem
Revert "usbtmc: convert to devm_kzalloc"
USB: serial: cp210x: Add ID for a Juniper console
Staging: fbtft: Fix bug in fbtft-core
usb: misc: legousbtower: Fix NULL pointer deference
USB: serial: cp210x: fix hardware flow-control disable
dm log writes: fix bug with too large bios
clk: xgene: Add missing parenthesis when clearing divider value
aio: mark AIO pseudo-fs noexec
batman-adv: remove unused callback from batadv_algo_ops struct
IB/mlx4: Use correct subnet-prefix in QP1 mads under SR-IOV
IB/mlx4: Fix code indentation in QP1 MAD flow
IB/mlx4: Fix incorrect MC join state bit-masking on SR-IOV
IB/ipoib: Don't allow MC joins during light MC flush
IB/core: Fix use after free in send_leave function
IB/ipoib: Fix memory corruption in ipoib cm mode connect flow
KVM: nVMX: postpone VMCS changes on MSR_IA32_APICBASE write
dmaengine: at_xdmac: fix to pass correct device identity to free_irq()
kernel/fork: fix CLONE_CHILD_CLEARTID regression in nscd
ASoC: omap-mcpdm: Fix irq resource handling
sysctl: handle error writing UINT_MAX to u32 fields
powerpc/prom: Fix sub-processor option passed to ibm, client-architecture-support
brcmsmac: Initialize power in brcms_c_stf_ss_algo_channel_get()
brcmsmac: Free packet if dma_mapping_error() fails in dma_rxfill
brcmfmac: Fix glob_skb leak in brcmf_sdiod_recv_chain
ASoC: Intel: Skylake: Fix error return code in skl_probe()
pNFS/flexfiles: Fix layoutcommit after a commit to DS
pNFS/files: Fix layoutcommit after a commit to DS
NFS: Don't drop CB requests with invalid principals
svc: Avoid garbage replies when pc_func() returns rpc_drop_reply
dmaengine: at_xdmac: fix debug string
fnic: pci_dma_mapping_error() doesn't return an error code
avr32: off by one in at32_init_pio()
ath9k: Fix programming of minCCA power threshold
gspca: avoid unused variable warnings
em28xx-i2c: rt_mutex_trylock() returns zero on failure
NFC: fdp: Detect errors from fdp_nci_create_conn()
iwlmvm: mvm: set correct state in smart-fifo configuration
tile: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
pstore: drop file opened reference count
blk-mq: actually hook up defer list when running requests
hwrng: omap - Fix assumption that runtime_get_sync will always succeed
ARM: sa1111: fix pcmcia suspend/resume
ARM: shmobile: fix regulator quirk for Gen2
ARM: sa1100: clear reset status prior to reboot
ARM: sa1100: fix 3.6864MHz clock
ARM: sa1100: register clocks early
ARM: sun5i: Fix typo in trip point temperature
regulator: qcom_smd: Fix voltage ranges for pm8x41
regulator: qcom_spmi: Update mvs1/mvs2 switches on pm8941
regulator: qcom_spmi: Add support for get_mode/set_mode on switches
regulator: qcom_spmi: Add support for S4 supply on pm8941
tpm: fix byte-order for the value read by tpm2_get_tpm_pt
printk: fix parsing of "brl=" option
MIPS: uprobes: fix use of uninitialised variable
MIPS: Malta: Fix IOCU disable switch read for MIPS64
MIPS: fix uretprobe implementation
MIPS: uprobes: remove incorrect set_orig_insn
arm64: debug: avoid resetting stepping state machine when TIF_SINGLESTEP
ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7
irqchip/gicv3: Silence noisy DEBUG_PER_CPU_MAPS warning
gpio: sa1100: fix irq probing for ucb1x00
usb: gadget: fsl_qe_udc: signedness bug in qe_get_frame()
ceph: fix race during filling readdir cache
iwlwifi: mvm: don't use ret when not initialised
iwlwifi: pcie: fix access to scratch buffer
spi: sh-msiof: Avoid invalid clock generator parameters
hwmon: (adt7411) set bit 3 in CFG1 register
nvmem: Declare nvmem_cell_read() consistently
ipvs: fix bind to link-local mcast IPv6 address in backup
tools/vm/slabinfo: fix an unintentional printf
mmc: pxamci: fix potential oops
drivers/perf: arm_pmu: Fix leak in error path
pinctrl: Flag strict is a field in struct pinmux_ops
pinctrl: uniphier: fix .pin_dbg_show() callback
i40e: avoid null pointer dereference
perf/core: Fix pmu::filter_match for SW-led groups
iwlwifi: mvm: fix a few firmware capability checks
usb: musb: fix DMA for host mode
usb: musb: Fix DMA desired mode for Mentor DMA engine
ARM: 8617/1: dma: fix dma_max_pfn()
ARM: 8616/1: dt: Respect property size when parsing CPUs
drm/radeon/si/dpm: add workaround for for Jet parts
drm/nouveau/fifo/nv04: avoid ramht race against cookie insertion
x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID
x86/init: Fix cr4_init_shadow() on CR4-less machines
can: dev: fix deadlock reported after bus-off
mm,ksm: fix endless looping in allocating memory when ksm enable
mtd: nand: davinci: Reinitialize the HW ECC engine in 4bit hwctl
cpuset: handle race between CPU hotplug and cpuset_hotplug_work
usercopy: fold builtin_const check into inline function
Linux 4.4.23
hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common()
qxl: check for kmap failures
power: supply: max17042_battery: fix model download bug.
power_supply: tps65217-charger: fix missing platform_set_drvdata()
PM / hibernate: Fix rtree_next_node() to avoid walking off list ends
PM / hibernate: Restore processor state before using per-CPU variables
MIPS: paravirt: Fix undefined reference to smp_bootstrap
MIPS: Add a missing ".set pop" in an early commit
MIPS: Avoid a BUG warning during prctl(PR_SET_FP_MODE, ...)
MIPS: Remove compact branch policy Kconfig entries
MIPS: vDSO: Fix Malta EVA mapping to vDSO page structs
MIPS: SMP: Fix possibility of deadlock when bringing CPUs online
MIPS: Fix pre-r6 emulation FPU initialisation
i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended
i2c-eg20t: fix race between i2c init and interrupt enable
btrfs: ensure that file descriptor used with subvol ioctls is a dir
nl80211: validate number of probe response CSA counters
can: flexcan: fix resume function
mm: delete unnecessary and unsafe init_tlb_ubc()
tracing: Move mutex to protect against resetting of seq data
fix memory leaks in tracing_buffers_splice_read()
power: reset: hisi-reboot: Unmap region obtained by of_iomap
mtd: pmcmsp-flash: Allocating too much in init_msp_flash()
mtd: maps: sa1100-flash: potential NULL dereference
fix fault_in_multipages_...() on architectures with no-op access_ok()
fanotify: fix list corruption in fanotify_get_response()
fsnotify: add a way to stop queueing events on group shutdown
xfs: prevent dropping ioend completions during buftarg wait
autofs: use dentry flags to block walks during expire
autofs races
pwm: Mark all devices as "might sleep"
bridge: re-introduce 'fix parsing of MLDv2 reports'
net: smc91x: fix SMC accesses
Revert "phy: IRQ cannot be shared"
net: dsa: bcm_sf2: Fix race condition while unmasking interrupts
net/mlx5: Added missing check of msg length in verifying its signature
tipc: fix NULL pointer dereference in shutdown()
net/irda: handle iriap_register_lsap() allocation failure
vti: flush x-netns xfrm cache when vti interface is removed
af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock'
Revert "af_unix: Fix splice-bind deadlock"
bonding: Fix bonding crash
megaraid: fix null pointer check in megasas_detach_one().
nouveau: fix nv40_perfctr_next() cleanup regression
Staging: iio: adc: fix indent on break statement
iwlegacy: avoid warning about missing braces
ath9k: fix misleading indentation
am437x-vfpe: fix typo in vpfe_get_app_input_index
Add braces to avoid "ambiguous ‘else’" compiler warnings
net: caif: fix misleading indentation
Makefile: Mute warning for __builtin_return_address(>0) for tracing only
Disable "frame-address" warning
Disable "maybe-uninitialized" warning globally
gcov: disable -Wmaybe-uninitialized warning
Kbuild: disable 'maybe-uninitialized' warning for CONFIG_PROFILE_ALL_BRANCHES
kbuild: forbid kernel directory to contain spaces and colons
tools: Support relative directory path for 'O='
Makefile: revert "Makefile: Document ability to make file.lst and file.S" partially
kbuild: Do not run modules_install and install in paralel
ocfs2: fix start offset to ocfs2_zero_range_for_truncate()
ocfs2/dlm: fix race between convert and migration
crypto: echainiv - Replace chaining with multiplication
crypto: skcipher - Fix blkcipher walk OOM crash
crypto: arm/aes-ctr - fix NULL dereference in tail processing
crypto: arm64/aes-ctr - fix NULL dereference in tail processing
tcp: properly scale window in tcp_v[46]_reqsk_send_ack()
tcp: fix use after free in tcp_xmit_retransmit_queue()
tcp: cwnd does not increase in TCP YeAH
ipv6: release dst in ping_v6_sendmsg
ipv4: panic in leaf_walk_rcu due to stale node pointer
reiserfs: fix "new_insert_key may be used uninitialized ..."
Fix build warning in kernel/cpuset.c
include/linux/kernel.h: change abs() macro so it uses consistent return type
Linux 4.4.22
openrisc: fix the fix of copy_from_user()
avr32: fix 'undefined reference to `___copy_from_user'
ia64: copy_from_user() should zero the destination on access_ok() failure
genirq/msi: Fix broken debug output
ppc32: fix copy_from_user()
sparc32: fix copy_from_user()
mn10300: copy_from_user() should zero on access_ok() failure...
nios2: copy_from_user() should zero the tail of destination
openrisc: fix copy_from_user()
parisc: fix copy_from_user()
metag: copy_from_user() should zero the destination on access_ok() failure
alpha: fix copy_from_user()
asm-generic: make copy_from_user() zero the destination properly
mips: copy_from_user() must zero the destination on access_ok() failure
hexagon: fix strncpy_from_user() error return
sh: fix copy_from_user()
score: fix copy_from_user() and friends
blackfin: fix copy_from_user()
cris: buggered copy_from_user/copy_to_user/clear_user
frv: fix clear_user()
asm-generic: make get_user() clear the destination on errors
ARC: uaccess: get_user to zero out dest in cause of fault
s390: get_user() should zero on failure
score: fix __get_user/get_user
nios2: fix __get_user()
sh64: failing __get_user() should zero
m32r: fix __get_user()
mn10300: failing __get_user() and get_user() should zero
fix minor infoleak in get_user_ex()
microblaze: fix copy_from_user()
avr32: fix copy_from_user()
microblaze: fix __get_user()
fix iov_iter_fault_in_readable()
irqchip/atmel-aic: Fix potential deadlock in ->xlate()
genirq: Provide irq_gc_{lock_irqsave,unlock_irqrestore}() helpers
drm: Only use compat ioctl for addfb2 on X86/IA64
drm: atmel-hlcdc: Fix vertical scaling
net: simplify napi_synchronize() to avoid warnings
kconfig: tinyconfig: provide whole choice blocks to avoid warnings
soc: qcom/spm: shut up uninitialized variable warning
pinctrl: at91-pio4: use %pr format string for resource
mmc: dw_mmc: use resource_size_t to store physical address
drm/i915: Avoid pointer arithmetic in calculating plane surface offset
mpssd: fix buffer overflow warning
gma500: remove annoying deprecation warning
ipv6: addrconf: fix dev refcont leak when DAD failed
sched/core: Fix a race between try_to_wake_up() and a woken up task
Revert "wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel"
ath9k: fix using sta->drv_priv before initializing it
md-cluster: make md-cluster also can work when compiled into kernel
xhci: fix null pointer dereference in stop command timeout function
fuse: direct-io: don't dirty ITER_BVEC pages
Btrfs: remove root_log_ctx from ctx list before btrfs_sync_log returns
crypto: cryptd - initialize child shash_desc on import
arm64: spinlocks: implement smp_mb__before_spinlock() as smp_mb()
pinctrl: sunxi: fix uart1 CTS/RTS pins at PG on A23/A33
pinctrl: pistachio: fix mfio pll_lock pinmux
dm crypt: fix error with too large bios
dm log writes: move IO accounting earlier to fix error path
dm log writes: fix check of kthread_run() return value
bus: arm-ccn: Fix XP watchpoint settings bitmask
bus: arm-ccn: Do not attempt to configure XPs for cycle counter
bus: arm-ccn: Fix PMU handling of MN
ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI
ARM: dts: overo: fix gpmc nand on boards with ethernet
ARM: dts: overo: fix gpmc nand cs0 range
ARM: dts: imx6qdl: Fix SPDIF regression
ARM: OMAP3: hwmod data: Add sysc information for DSI
ARM: kirkwood: ib62x0: fix size of u-boot environment partition
ARM: imx6: add missing BM_CLPCR_BYPASS_PMIC_READY setting for imx6sx
ARM: imx6: add missing BM_CLPCR_BYP_MMDC_CH0_LPM_HS setting for imx6ul
ARM: AM43XX: hwmod: Fix RSTST register offset for pruss
cpuset: make sure new tasks conform to the current config of the cpuset
net: thunderx: Fix OOPs with ethtool --register-dump
USB: change bInterval default to 10 ms
ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB)
usb: chipidea: udc: fix NULL ptr dereference in isr_setup_status_phase
usb: renesas_usbhs: fix clearing the {BRDY,BEMP}STS condition
USB: serial: simple: add support for another Infineon flashloader
serial: 8250: added acces i/o products quad and octal serial cards
serial: 8250_mid: fix divide error bug if baud rate is 0
iio: ensure ret is initialized to zero before entering do loop
iio:core: fix IIO_VAL_FRACTIONAL sign handling
iio: accel: kxsd9: Fix scaling bug
iio: fix pressure data output unit in hid-sensor-attributes
iio: accel: bmc150: reset chip at init time
iio: adc: at91: unbreak channel adc channel 3
iio: ad799x: Fix buffered capture for ad7991/ad7995/ad7999
iio: adc: ti_am335x_adc: Increase timeout value waiting for ADC sample
iio: adc: ti_am335x_adc: Protect FIFO1 from concurrent access
iio: adc: rockchip_saradc: reset saradc controller before programming it
iio: proximity: as3935: set up buffer timestamps for non-zero values
iio: accel: kxsd9: Fix raw read return
kvm-arm: Unmap shadow pagetables properly
x86/AMD: Apply erratum 665 on machines without a BIOS fix
x86/paravirt: Do not trace _paravirt_ident_*() functions
ARC: mm: fix build breakage with STRICT_MM_TYPECHECKS
IB/uverbs: Fix race between uverbs_close and remove_one
dm flakey: fix reads to be issued if drop_writes configured
audit: fix exe_file access in audit_exe_compare
mm: introduce get_task_exe_file
kexec: fix double-free when failing to relocate the purgatory
NFSv4.1: Fix the CREATE_SESSION slot number accounting
pNFS: Ensure LAYOUTGET and LAYOUTRETURN are properly serialised
nfsd: Close race between nfsd4_release_lockowner and nfsd4_lock
NFSv4.x: Fix a refcount leak in nfs_callback_up_net
pNFS: The client must not do I/O to the DS if it's lease has expired
kernfs: don't depend on d_find_any_alias() when generating notifications
powerpc/mm: Don't alias user region to other regions below PAGE_OFFSET
powerpc/powernv : Drop reference added by kset_find_obj()
powerpc/tm: do not use r13 for tabort_syscall
tipc: move linearization of buffers to generic code
lightnvm: put bio before return
fscrypto: require write access to mount to set encryption policy
Revert "KVM: x86: fix missed hardware breakpoints"
MIPS: KVM: Check for pfn noslot case
clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function
fscrypto: add authorization check for setting encryption policy
ext4: use __GFP_NOFAIL in ext4_free_blocks()
Conflicts:
arch/arm/kernel/devtree.c
arch/arm64/Kconfig
arch/arm64/kernel/arm64ksyms.c
arch/arm64/kernel/psci.c
arch/arm64/mm/fault.c
drivers/android/binder.c
drivers/usb/host/xhci-hub.c
fs/ext4/readpage.c
include/linux/mmc/core.h
include/linux/mmzone.h
mm/memcontrol.c
net/core/filter.c
net/netlink/af_netlink.c
net/netlink/af_netlink.h
Change-Id: I99fe7a0914e83e284b11b33185b71448a8999d1f
Signed-off-by: Runmin Wang <runminw@codeaurora.org>
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
io-pgtable-fast was implemented to achieve
better performance for IOMMU map/un-map. Add
DMA API support that goes through io-pgtable-fast
for 32 bit targets.
Change-Id:I3d0560a4331f6b7b87c70d0885df11d12cb1d6ec
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
commit d248220f0465b818887baa9829e691fe662b2c5e upstream.
Since commit 6ce0d20016 ("ARM: dma: Use dma_pfn_offset for dma address translation"),
dma_to_pfn() already returns the PFN with the physical memory start offset
so we don't need to add it again.
This fixes USB mass storage lock-up problem on systems that can't do DMA
over the entire physical memory range (e.g.) Keystone 2 systems with 4GB RAM
can only do DMA over the first 2GB. [K2E-EVM].
What happens there is that without this patch SCSI layer sets a wrong
bounce buffer limit in scsi_calculate_bounce_limit() for the USB mass
storage device. dma_max_pfn() evaluates to 0x8fffff and bounce_limit
is set to 0x8fffff000 whereas maximum DMA'ble physical memory on Keystone 2
is 0x87fffffff. This results in non DMA'ble pages being given to the
USB controller and hence the lock-up.
NOTE: in the above case, USB-SCSI-device's dma_pfn_offset was showing as 0.
This should have really been 0x780000 as on K2e, LOWMEM_START is 0x80000000
and HIGHMEM_START is 0x800000000. DMA zone is 2GB so dma_max_pfn should be
0x87ffff. The incorrect dma_pfn_offset for the USB storage device is because
USB devices are not correctly inheriting the dma_pfn_offset from the
USB host controller. This will be fixed by a separate patch.
Fixes: 6ce0d20016 ("ARM: dma: Use dma_pfn_offset for dma address translation")
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Almost everyone implements dma_set_mask the same way, although some time
that's hidden in ->set_dma_mask methods.
This patch consolidates those into a common implementation that either
calls ->set_dma_mask if present or otherwise uses the default
implementation. Some architectures used to only call ->set_dma_mask
after the initial checks, and those instance have been fixed to do the
full work. h8300 implemented dma_set_mask bogusly as a no-ops and has
been fixed.
Unfortunately some architectures overload unrelated semantics like changing
the dma_ops into it so we still need to allow for an architecture override
for now.
[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Most architectures just call into ->dma_supported, but some also return 1
if the method is not present, or 0 if no dma ops are present (although
that should never happeb). Consolidate this more broad version into
common code.
Also fix h8300 which inorrectly always returned 0, which would have been
a problem if it's dma_set_mask implementation wasn't a similarly buggy
noop.
As a few architectures have much more elaborate implementations, we
still allow for arch overrides.
[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently there are three valid implementations of dma_mapping_error:
(1) call ->mapping_error
(2) check for a hardcoded error code
(3) always return 0
This patch provides a common implementation that calls ->mapping_error
if present, then checks for DMA_ERROR_CODE if defined or otherwise
returns 0.
[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Most architectures do not support non-coherent allocations and either
define dma_{alloc,free}_noncoherent to their coherent versions or stub
them out.
Openrisc uses dma_{alloc,free}_attrs to implement them, and only Mips
implements them directly.
This patch moves the Openrisc version to common code, and handles the
DMA_ATTR_NON_CONSISTENT case in the mips dma_map_ops instance.
Note that actual non-coherent allocations require a dma_cache_sync
implementation, so if non-coherent allocations didn't work on
an architecture before this patch they still won't work after it.
[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since 2009 we have a nice asm-generic header implementing lots of DMA API
functions for architectures using struct dma_map_ops, but unfortunately
it's still missing a lot of APIs that all architectures still have to
duplicate.
This series consolidates the remaining functions, although we still need
arch opt outs for two of them as a few architectures have very
non-standard implementations.
This patch (of 5):
The coherent DMA allocator works the same over all architectures supporting
dma_map operations.
This patch consolidates them and converges the minor differences:
- the debug_dma helpers are now called from all architectures, including
those that were previously missing them
- dma_alloc_from_coherent and dma_release_from_coherent are now always
called from the generic alloc/free routines instead of the ops
dma-mapping-common.h always includes dma-coherent.h to get the defintions
for them, or the stubs if the architecture doesn't support this feature
- checks for ->alloc / ->free presence are removed. There is only one
magic instead of dma_map_ops without them (mic_dma_ops) and that one
is x86 only anyway.
Besides that only x86 needs special treatment to replace a default devices
if none is passed and tweak the gfp_flags. An optional arch hook is provided
for that.
[linux@roeck-us.net: fix build]
[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
All architectures except arm that define DMA_ERROR_CODE are casting it
to (dma_addr_t) - as it is always compared to dma_addr_t in arm as well
this could be harmonized.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The iomm-config branch contains work from Will Deacon, quoting his description:
This series adds automatic IOMMU and DMA-mapping configuration for
OF-based DMA masters described using the generic IOMMU devicetree
bindings. Although there is plenty of future work around splitting up
iommu_ops, adding default IOMMU domains and sorting out automatic IOMMU
group creation for the platform_bus, this is already useful enough for
people to port over their IOMMU drivers and start using the new probing
infrastructure (indeed, Marek has patches queued for the Exynos IOMMU).
The branch touches core ARM and IOMMU driver files, and the respective
maintainers (Russell King and Joerg Roedel) agreed to have the contents
merged through the arm-soc tree. The final version was ready just before
the merge window, so we ended up delaying it a bit longer than the rest,
but we don't expect to see regressions because this is just additional
infrastructure that will get used in drivers starting in 3.20 but is
unused so far.
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Merge tag 'iommu-config-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC/iommu configuration update from Arnd Bergmann:
"The iomm-config branch contains work from Will Deacon, quoting his
description:
This series adds automatic IOMMU and DMA-mapping configuration for
OF-based DMA masters described using the generic IOMMU devicetree
bindings. Although there is plenty of future work around splitting up
iommu_ops, adding default IOMMU domains and sorting out automatic IOMMU
group creation for the platform_bus, this is already useful enough for
people to port over their IOMMU drivers and start using the new probing
infrastructure (indeed, Marek has patches queued for the Exynos IOMMU).
The branch touches core ARM and IOMMU driver files, and the respective
maintainers (Russell King and Joerg Roedel) agreed to have the
contents merged through the arm-soc tree.
The final version was ready just before the merge window, so we ended
up delaying it a bit longer than the rest, but we don't expect to see
regressions because this is just additional infrastructure that will
get used in drivers starting in 3.20 but is unused so far"
* tag 'iommu-config-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
iommu: store DT-probed IOMMU data privately
arm: dma-mapping: plumb our iommu mapping ops into arch_setup_dma_ops
arm: call iommu_init before of_platform_populate
dma-mapping: detect and configure IOMMU in of_dma_configure
iommu: fix initialization without 'add_device' callback
iommu: provide helper function to configure an IOMMU for an of master
iommu: add new iommu_ops callback for adding an OF device
dma-mapping: replace set_arch_dma_coherent_ops with arch_setup_dma_ops
iommu: provide early initialisation hook for IOMMU drivers
Introduce a boolean flag and an accessor function to check whether a
device is dma_coherent. Set the flag from set_arch_dma_coherent_ops.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Russell King <linux@arm.linux.org.uk>
This patch plumbs the existing ARM IOMMU DMA infrastructure (which isn't
actually called outside of a few drivers) into arch_setup_dma_ops, so
that we can use IOMMUs for DMA transfers in a more generic fashion.
Since this significantly complicates the arch_setup_dma_ops function,
it is moved out of line into dma-mapping.c. If CONFIG_ARM_DMA_USE_IOMMU
is not set, the iommu parameter is ignored and the normal ops are used
instead.
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This patch extends of_dma_configure so that it sets up the IOMMU for a
device, as well as the coherent/non-coherent DMA mapping ops.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
set_arch_dma_coherent_ops is called from of_dma_configure in order to
swizzle the architectural dma-mapping functions over to a cache-coherent
implementation. This is currently implemented only for ARM.
In anticipation of re-using this mechanism for IOMMU-backed dma-mapping
ops too, this patch replaces the function with a broader
arch_setup_dma_ops callback which will be extended in future.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Provide an implementation for dma_{alloc,free,mmap}_writecombine() when
the architecture supports DMA attributes.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
In most of cases DMA addresses can be performed using offset value of
Bus address space relatively to physical address space as following:
PFN->DMA:
__pfn_to_phys(pfn + [-]dma_pfn_offset)
DMA->PFN:
__phys_to_pfn(dma_addr) + [-]dma_pfn_offset
Thanks to Russell King for suggesting the optimised macro's for
conversion.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
- SWIOTLB has tracing added when doing bounce buffer.
- Xen ARM/ARM64 can use Xen-SWIOTLB. This work allows Linux to
safely program real devices for DMA operations when running as
a guest on Xen on ARM, without IOMMU support.*1
- xen_raw_printk works with PVHVM guests if needed.
Bug-fixes:
- Make memory ballooning work under HVM with large MMIO region.
- Inform hypervisor of MCFG regions found in ACPI DSDT.
- Remove deprecated IRQF_DISABLED.
- Remove deprecated __cpuinit.
[*1]:
"On arm and arm64 all Xen guests, including dom0, run with second stage
translation enabled. As a consequence when dom0 programs a device for a
DMA operation is going to use (pseudo) physical addresses instead
machine addresses. This work introduces two trees to track physical to
machine and machine to physical mappings of foreign pages. Local pages
are assumed mapped 1:1 (physical address == machine address). It
enables the SWIOTLB-Xen driver on ARM and ARM64, so that Linux can
translate physical addresses to machine addresses for dma operations
when necessary. " (Stefano).
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Merge tag 'stable/for-linus-3.13-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen updates from Konrad Rzeszutek Wilk:
"This has tons of fixes and two major features which are concentrated
around the Xen SWIOTLB library.
The short <blurb> is that the tracing facility (just one function) has
been added to SWIOTLB to make it easier to track I/O progress.
Additionally under Xen and ARM (32 & 64) the Xen-SWIOTLB driver
"is used to translate physical to machine and machine to physical
addresses of foreign[guest] pages for DMA operations" (Stefano) when
booting under hardware without proper IOMMU.
There are also bug-fixes, cleanups, compile warning fixes, etc.
The commit times for some of the commits is a bit fresh - that is b/c
we wanted to make sure we have the Ack's from the ARM folks - which
with the string of back-to-back conferences took a bit of time. Rest
assured - the code has been stewing in #linux-next for some time.
Features:
- SWIOTLB has tracing added when doing bounce buffer.
- Xen ARM/ARM64 can use Xen-SWIOTLB. This work allows Linux to
safely program real devices for DMA operations when running as a
guest on Xen on ARM, without IOMMU support. [*1]
- xen_raw_printk works with PVHVM guests if needed.
Bug-fixes:
- Make memory ballooning work under HVM with large MMIO region.
- Inform hypervisor of MCFG regions found in ACPI DSDT.
- Remove deprecated IRQF_DISABLED.
- Remove deprecated __cpuinit.
[*1]:
"On arm and arm64 all Xen guests, including dom0, run with second
stage translation enabled. As a consequence when dom0 programs a
device for a DMA operation is going to use (pseudo) physical
addresses instead machine addresses. This work introduces two trees
to track physical to machine and machine to physical mappings of
foreign pages. Local pages are assumed mapped 1:1 (physical address
== machine address). It enables the SWIOTLB-Xen driver on ARM and
ARM64, so that Linux can translate physical addresses to machine
addresses for dma operations when necessary. " (Stefano)"
* tag 'stable/for-linus-3.13-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (32 commits)
xen/arm: pfn_to_mfn and mfn_to_pfn return the argument if nothing is in the p2m
arm,arm64/include/asm/io.h: define struct bio_vec
swiotlb-xen: missing include dma-direction.h
pci-swiotlb-xen: call pci_request_acs only ifdef CONFIG_PCI
arm: make SWIOTLB available
xen: delete new instances of added __cpuinit
xen/balloon: Set balloon's initial state to number of existing RAM pages
xen/mcfg: Call PHYSDEVOP_pci_mmcfg_reserved for MCFG areas.
xen: remove deprecated IRQF_DISABLED
x86/xen: remove deprecated IRQF_DISABLED
swiotlb-xen: fix error code returned by xen_swiotlb_map_sg_attrs
swiotlb-xen: static inline xen_phys_to_bus, xen_bus_to_phys, xen_virt_to_bus and range_straddles_page_boundary
grant-table: call set_phys_to_machine after mapping grant refs
arm,arm64: do not always merge biovec if we are running on Xen
swiotlb: print a warning when the swiotlb is full
swiotlb-xen: use xen_dma_map/unmap_page, xen_dma_sync_single_for_cpu/device
xen: introduce xen_dma_map/unmap_page and xen_dma_sync_single_for_cpu/device
tracing/events: Fix swiotlb tracepoint creation
swiotlb-xen: use xen_alloc/free_coherent_pages
xen: introduce xen_alloc/free_coherent_pages
...
* stefano/swiotlb-xen-9.1:
swiotlb-xen: fix error code returned by xen_swiotlb_map_sg_attrs
swiotlb-xen: static inline xen_phys_to_bus, xen_bus_to_phys, xen_virt_to_bus and range_straddles_page_boundary
grant-table: call set_phys_to_machine after mapping grant refs
arm,arm64: do not always merge biovec if we are running on Xen
swiotlb: print a warning when the swiotlb is full
swiotlb-xen: use xen_dma_map/unmap_page, xen_dma_sync_single_for_cpu/device
xen: introduce xen_dma_map/unmap_page and xen_dma_sync_single_for_cpu/device
swiotlb-xen: use xen_alloc/free_coherent_pages
xen: introduce xen_alloc/free_coherent_pages
arm64/xen: get_dma_ops: return xen_dma_ops if we are running as xen_initial_domain
arm/xen: get_dma_ops: return xen_dma_ops if we are running as xen_initial_domain
swiotlb-xen: introduce xen_swiotlb_set_dma_mask
xen/arm,arm64: enable SWIOTLB_XEN
xen: make xen_create_contiguous_region return the dma address
xen/x86: allow __set_phys_to_machine for autotranslate guests
arm/xen,arm64/xen: introduce p2m
arm64: define DMA_ERROR_CODE
arm: make SWIOTLB available
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Conflicts:
arch/arm/include/asm/dma-mapping.h
drivers/xen/swiotlb-xen.c
[Conflicts arose b/c "arm: make SWIOTLB available" v8 was in Stefano's
branch, while I had v9 + Ack from Russel. I also fixed up white-space
issues]
IOMMU_HELPER is needed because SWIOTLB calls iommu_is_span_boundary,
provided by lib/iommu_helper.c.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: will.deacon@arm.com
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Changes in v9:
- remove uneeded include asm/cacheflush.h;
- just return 0 if !dev->dma_mask in dma_capable.
Changes in v8:
- use __phys_to_pfn and __pfn_to_phys.
Changes in v7:
- dma_mark_clean: empty implementation;
- in dma_capable use coherent_dma_mask if dma_mask hasn't been
allocated.
Changes in v6:
- check for dev->dma_mask being NULL in dma_capable.
Changes in v5:
- implement dma_mark_clean using dmac_flush_range.
Changes in v3:
- dma_capable: do not treat dma_mask as a limit;
- remove SWIOTLB dependency on NEED_SG_DMA_LENGTH.
Most of the kernel code assumes that max*pfn is maximum pfns because
the physical start of memory is expected to be PFN0. Since this
assumption is not true on ARM architectures, the meaning of max*pfn
is number of memory pages. This is done to keep drivers happy which
are making use of of these variable to calculate the dma bounce limit
using dma_mask.
Now since we have a architecture override possibility for DMAable
maximum pfns, lets make meaning of max*pfns as maximum pnfs on ARM
as well.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
We can't simply override arm_dma_ops with xen_dma_ops because devices
are allowed to have their own dma_ops and they take precedence over
arm_dma_ops. When running on Xen as initial domain, we always want
xen_dma_ops to be the one in use.
We introduce __generic_dma_ops to allow xen_dma_ops functions to call
back to the native implementation.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
CC: will.deacon@arm.com
CC: linux@arm.linux.org.uk
Changes in v7:
- return xen_dma_ops only if we are the initial domain;
- rename __get_dma_ops to __generic_dma_ops.
IOMMU_HELPER is needed because SWIOTLB calls iommu_is_span_boundary,
provided by lib/iommu_helper.c.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: will.deacon@arm.com
CC: linux@arm.linux.org.uk
Changes in v8:
- use __phys_to_pfn and __pfn_to_phys.
Changes in v7:
- dma_mark_clean: empty implementation;
- in dma_capable use coherent_dma_mask if dma_mask hasn't been
allocated.
Changes in v6:
- check for dev->dma_mask being NULL in dma_capable.
Changes in v5:
- implement dma_mark_clean using dmac_flush_range.
Changes in v3:
- dma_capable: do not treat dma_mask as a limit;
- remove SWIOTLB dependency on NEED_SG_DMA_LENGTH.
A few new features this merge-window. The most important one is
probably, that dma-debug now warns if a dma-handle is not checked with
dma_mapping_error by the device driver. This requires minor changes to
some architectures which make use of dma-debug. Most of these changes
have the respective Acks by the Arch-Maintainers.
Besides that there are updates to the AMD IOMMU driver for refactor the
IOMMU-Groups support and to make sure it does not trigger a hardware
erratum.
The OMAP changes (for which I pulled in a branch from Tony Lindgren's
tree) have a conflict in linux-next with the arm-soc tree. The conflict
is in the file arch/arm/mach-omap2/clock44xx_data.c which is deleted in
the arm-soc tree. It is safe to delete the file too so solve the
conflict. Similar changes are done in the arm-soc tree in the common
clock framework migration. A missing hunk from the patch in the IOMMU
tree will be submitted as a seperate patch when the merge-window is
closed.
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Merge tag 'iommu-updates-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"A few new features this merge-window. The most important one is
probably, that dma-debug now warns if a dma-handle is not checked with
dma_mapping_error by the device driver. This requires minor changes
to some architectures which make use of dma-debug. Most of these
changes have the respective Acks by the Arch-Maintainers.
Besides that there are updates to the AMD IOMMU driver for refactor
the IOMMU-Groups support and to make sure it does not trigger a
hardware erratum.
The OMAP changes (for which I pulled in a branch from Tony Lindgren's
tree) have a conflict in linux-next with the arm-soc tree. The
conflict is in the file arch/arm/mach-omap2/clock44xx_data.c which is
deleted in the arm-soc tree. It is safe to delete the file too so
solve the conflict. Similar changes are done in the arm-soc tree in
the common clock framework migration. A missing hunk from the patch
in the IOMMU tree will be submitted as a seperate patch when the
merge-window is closed."
* tag 'iommu-updates-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (29 commits)
ARM: dma-mapping: support debug_dma_mapping_error
ARM: OMAP4: hwmod data: ipu and dsp to use parent clocks instead of leaf clocks
iommu/omap: Adapt to runtime pm
iommu/omap: Migrate to hwmod framework
iommu/omap: Keep mmu enabled when requested
iommu/omap: Remove redundant clock handling on ISR
iommu/amd: Remove obsolete comment
iommu/amd: Don't use 512GB pages
iommu/tegra: smmu: Move bus_set_iommu after probe for multi arch
iommu/tegra: gart: Move bus_set_iommu after probe for multi arch
iommu/tegra: smmu: Remove unnecessary PTC/TLB flush all
tile: dma_debug: add debug_dma_mapping_error support
sh: dma_debug: add debug_dma_mapping_error support
powerpc: dma_debug: add debug_dma_mapping_error support
mips: dma_debug: add debug_dma_mapping_error support
microblaze: dma-mapping: support debug_dma_mapping_error
ia64: dma_debug: add debug_dma_mapping_error support
c6x: dma_debug: add debug_dma_mapping_error support
ARM64: dma_debug: add debug_dma_mapping_error support
intel-iommu: Prevent devices with RMRRs from being placed into SI Domain
...
This is a branch with updates for Marvell's mvebu/kirkwood platforms. They
came in late-ish, and were heavily interdependent such that it didn't
make sense to split them up across the cross-platform topic branches. So
here they are (for the second release in a row) in a branch on their own.
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Merge tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC updates for Marvell mvebu/kirkwood from Olof Johansson:
"This is a branch with updates for Marvell's mvebu/kirkwood platforms.
They came in late-ish, and were heavily interdependent such that it
didn't make sense to split them up across the cross-platform topic
branches. So here they are (for the second release in a row) in a
branch on their own."
* tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (88 commits)
arm: l2x0: add aurora related properties to OF binding
arm: mvebu: add Aurora L2 Cache Controller to the DT
arm: mvebu: add L2 cache support
dma: mv_xor: fix error handling path
dma: mv_xor: fix error checking of irq_of_parse_and_map()
dma: mv_xor: use request_irq() instead of devm_request_irq()
dma: mv_xor: clear the window override control registers
arm: mvebu: fix address decoding armada_cfg_base() function
ARM: mvebu: update defconfig with I2C and RTC support
ARM: mvebu: Add SATA support for OpenBlocks AX3-4
ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4
ARM: mvebu: Add support for I2C on OpenBlocks AX3-4
ARM: mvebu: Add support for I2C controllers in Armada 370/XP
arm: mvebu: Add hardware I/O Coherency support
arm: plat-orion: Add coherency attribute when setup mbus target
arm: dma mapping: Export a dma ops function arm_dma_set_mask
arm: mvebu: Add SMP support for Armada XP
arm: mm: Add support for PJ4B cpu and init routines
arm: mvebu: Add IPI support via doorbells
arm: mvebu: Add initial support for power managmement service unit
...
Without the patch, kind of below warning will be dumped if DMA-API
debug is enabled:
[ 11.069763] ------------[ cut here ]------------
[ 11.074645] WARNING: at lib/dma-debug.c:948 check_unmap+0x770/0x860()
[ 11.081420] ehci-omap ehci-omap.0: DMA-API: device driver failed to
check map error[device address=0x0000000
0adb78e80] [size=8 bytes] [mapped as single]
[ 11.095611] Modules linked in:
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Expose another DMA operations function: arm_dma_set_mask. This
function will be added to a custom DMA ops for Armada 370/XP.
Depending of its configuration Armada 370/XP can be set as a "nearly"
coherent architecture. In this case the DMA ops is made of:
- specific functions for this architecture
- already exposed arm DMA related functions
- the arm_dma_set_mask which was not exposed yet.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Since commit e9da6e9905 ("ARM: dma-mapping: remove custom consistent
dma region") setting consistent dma memory size is not longer required. All
calls to this function has been already removed, so the
init_consistent_dma_size() stub can also be gone.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
This reverts commit 871ae57adc, which is
scheduled for v3.8 and accidently got into v3.7-rc series.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Without the patch, kind of below warning will be dumped if DMA-API
debug is enabled:
[ 11.069763] ------------[ cut here ]------------
[ 11.074645] WARNING: at lib/dma-debug.c:948 check_unmap+0x770/0x860()
[ 11.081420] ehci-omap ehci-omap.0: DMA-API: device driver failed to
check map error[device address=0x0000000
0adb78e80] [size=8 bytes] [mapped as single]
[ 11.095611] Modules linked in:
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
arch_is_coherent is problematic as it is a global symbol. This
doesn't work for multi-platform kernels or platforms which can support
per device coherent DMA.
This adds arm_coherent_dma_ops to be used for devices which connected
coherently (i.e. to the ACP port on Cortex-A9 or A15). The arm_dma_ops
are modified at boot when arch_is_coherent is true.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Some platforms might require to increase atomic coherent pool to make
sure that their device will be able to allocate all their buffers from
atomic context. This function can be also used to decrease atomic
coherent pool size if coherent allocations are not used for the given
sub-platform.
Suggested-by: Josh Coombs <josh.coombs@gmail.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
This patch adds support for dma_get_sgtable() function which is required
to let drivers to share the buffers allocated by DMA-mapping subsystem.
Generic implementation based on virt_to_page() is not suitable for ARM
dma-mapping subsystem.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Commit 9adc5374 ('common: dma-mapping: introduce mmap method') added a
generic method for implementing mmap user call to dma_map_ops structure.
This patch converts ARM and PowerPC architectures (the only providers of
dma_mmap_coherent/dma_mmap_writecombine calls) to use this generic
dma_map_ops based call and adds a generic cross architecture
definition for dma_mmap_attrs, dma_mmap_coherent, dma_mmap_writecombine
functions.
The generic mmap virt_to_page-based fallback implementation is provided for
architectures which don't provide their own implementation for mmap method.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
This patch changes dma-mapping subsystem to use generic vmalloc areas
for all consistent dma allocations. This increases the total size limit
of the consistent allocations and removes platform hacks and a lot of
duplicated code.
Atomic allocations are served from special pool preallocated on boot,
because vmalloc areas cannot be reliably created in atomic context.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
This patch converts dma_alloc/free/mmap_{coherent,writecombine}
functions to use generic alloc/free/mmap methods from dma_map_ops
structure. A new DMA_ATTR_WRITE_COMBINE DMA attribute have been
introduced to implement writecombine methods.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-By: Subash Patel <subash.ramaswamy@linaro.org>
This patch removes dma bounce hooks from the common dma mapping
implementation on ARM architecture and creates a separate set of
dma_map_ops for dma bounce devices.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-By: Subash Patel <subash.ramaswamy@linaro.org>
This patch modifies dma-mapping implementation on ARM architecture to
use common dma_map_ops structure and asm-generic/dma-mapping-common.h
helpers.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-By: Subash Patel <subash.ramaswamy@linaro.org>
This patch removes the need for the offset parameter in dma bounce
functions. This is required to let dma-mapping framework on ARM
architecture to use common, generic dma_map_ops based dma-mapping
helpers.
Background and more detailed explaination:
dma_*_range_* functions are available from the early days of the dma
mapping api. They are the correct way of doing a partial syncs on the
buffer (usually used by the network device drivers). This patch changes
only the internal implementation of the dma bounce functions to let
them tunnel through dma_map_ops structure. The driver api stays
unchanged, so driver are obliged to call dma_*_range_* functions to
keep code clean and easy to understand.
The only drawback from this patch is reduced detection of the dma api
abuse. Let us consider the following code:
dma_addr = dma_map_single(dev, ptr, 64, DMA_TO_DEVICE);
dma_sync_single_range_for_cpu(dev, dma_addr+16, 0, 32, DMA_TO_DEVICE);
Without the patch such code fails, because dma bounce code is unable
to find the bounce buffer for the given dma_address. After the patch
the above sync call will be equivalent to:
dma_sync_single_range_for_cpu(dev, dma_addr, 16, 32, DMA_TO_DEVICE);
which succeeds.
I don't consider this as a real problem, because DMA API abuse should be
caught by debug_dma_* function family. This patch lets us to simplify
the internal low-level implementation without chaning the driver visible
API.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-By: Subash Patel <subash.ramaswamy@linaro.org>
Replace all uses of ~0 with DMA_ERROR_CODE, what should make the code
easier to read.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-By: Subash Patel <subash.ramaswamy@linaro.org>
This is to avoid a compiler warning when invoking the __bus_to_virt()
macro. The dma_to_virt() function gets addresses within the 32-bit
range.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This function can be called during boot to increase the size of the consistent
DMA region above it's default value of 2MB. It must be called before the memory
allocator is initialised, i.e. before any core_initcall.
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
ISA_DMA_THRESHOLD has been unused by non-arch code, so lets now get
rid of it from ARM by replacing it with arm_dma_zone_mask. Move
dma_supported() and dma_set_mask() out of line, and have
dma_supported() check this new variable instead.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Simplify the dmabounce specific code in dma_set_mask(). We can just
omit setting the dma mask if dmabounce is enabled (we will have already
set dma mask via callbacks when the device is created in that case.)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Pass the device type specific needs_bounce function in at dmabounce
register time, avoiding the need for a platform specific global
function to do this.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Use dma_map_page()/dma_unmap_page() internals to handle dma_map_single()
and dma_unmap_single().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add ARM support for the DMA debug infrastructure, which allows the
DMA API usage to be debugged.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Replace the page_to_dma() and dma_to_page() macros with their PFN
equivalents. This allows us to map parts of memory which do not have
a struct page allocated to them to bus addresses. This will be used
internally by dma_alloc_coherent()/dma_alloc_writecombine().
Build tested on Versatile, OMAP1, IOP13xx and KS8695.
Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This reverts commit 4fa5518, which causes a compilation regression for
IXP4xx platforms.
Reported-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Runmin Wang
Charan Teja Reddy
Roger Quadros
Christoph Hellwig
Marek Szyprowski
Linus Torvalds
Stefano Stabellini
Will Deacon
Thierry Reding
Santosh Shilimkar
Grygorii Strashko
Konrad Rzeszutek Wilk
Ming Lei
Gregory CLEMENT
Rob Herring
Catalin Marinas
Jon Medhurst
Russell King