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Author SHA1 Message Date
Greg Kroah-Hartman
89904ccfe2 This is the 4.4.128 stable release
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Merge 4.4.128 into android-4.4

Changes in 4.4.128
	cfg80211: make RATE_INFO_BW_20 the default
	md/raid5: make use of spin_lock_irq over local_irq_disable + spin_lock
	rtc: snvs: fix an incorrect check of return value
	x86/asm: Don't use RBP as a temporary register in csum_partial_copy_generic()
	NFSv4.1: RECLAIM_COMPLETE must handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION
	IB/srpt: Fix abort handling
	af_key: Fix slab-out-of-bounds in pfkey_compile_policy.
	mac80211: bail out from prep_connection() if a reconfig is ongoing
	bna: Avoid reading past end of buffer
	qlge: Avoid reading past end of buffer
	ipmi_ssif: unlock on allocation failure
	net: cdc_ncm: Fix TX zero padding
	net: ethernet: ti: cpsw: adjust cpsw fifos depth for fullduplex flow control
	lockd: fix lockd shutdown race
	drivers/misc/vmw_vmci/vmci_queue_pair.c: fix a couple integer overflow tests
	pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid()
	s390: move _text symbol to address higher than zero
	net/mlx4_en: Avoid adding steering rules with invalid ring
	NFSv4.1: Work around a Linux server bug...
	CIFS: silence lockdep splat in cifs_relock_file()
	blk-mq: NVMe 512B/4K+T10 DIF/DIX format returns I/O error on dd with split op
	net: qca_spi: Fix alignment issues in rx path
	netxen_nic: set rcode to the return status from the call to netxen_issue_cmd
	Input: elan_i2c - check if device is there before really probing
	Input: elantech - force relative mode on a certain module
	KVM: PPC: Book3S PR: Check copy_to/from_user return values
	vmxnet3: ensure that adapter is in proper state during force_close
	SMB2: Fix share type handling
	bus: brcmstb_gisb: Use register offsets with writes too
	bus: brcmstb_gisb: correct support for 64-bit address output
	PowerCap: Fix an error code in powercap_register_zone()
	ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin
	staging: wlan-ng: prism2mgmt.c: fixed a double endian conversion before calling hfa384x_drvr_setconfig16, also fixes relative sparse warning
	x86/tsc: Provide 'tsc=unstable' boot parameter
	ARM: dts: imx6qdl-wandboard: Fix audio channel swap
	ipv6: avoid dad-failures for addresses with NODAD
	async_tx: Fix DMA_PREP_FENCE usage in do_async_gen_syndrome()
	usb: dwc3: keystone: check return value
	btrfs: fix incorrect error return ret being passed to mapping_set_error
	ata: libahci: properly propagate return value of platform_get_irq()
	neighbour: update neigh timestamps iff update is effective
	arp: honour gratuitous ARP _replies_
	usb: chipidea: properly handle host or gadget initialization failure
	USB: ene_usb6250: fix first command execution
	net: x25: fix one potential use-after-free issue
	USB: ene_usb6250: fix SCSI residue overwriting
	serial: 8250: omap: Disable DMA for console UART
	serial: sh-sci: Fix race condition causing garbage during shutdown
	sh_eth: Use platform device for printing before register_netdev()
	scsi: csiostor: fix use after free in csio_hw_use_fwconfig()
	powerpc/mm: Fix virt_addr_valid() etc. on 64-bit hash
	ath5k: fix memory leak on buf on failed eeprom read
	selftests/powerpc: Fix TM resched DSCR test with some compilers
	xfrm: fix state migration copy replay sequence numbers
	iio: hi8435: avoid garbage event at first enable
	iio: hi8435: cleanup reset gpio
	ext4: handle the rest of ext4_mb_load_buddy() ENOMEM errors
	md-cluster: fix potential lock issue in add_new_disk
	ARM: davinci: da8xx: Create DSP device only when assigned memory
	ray_cs: Avoid reading past end of buffer
	leds: pca955x: Correct I2C Functionality
	sched/numa: Use down_read_trylock() for the mmap_sem
	net/mlx5: Tolerate irq_set_affinity_hint() failures
	selinux: do not check open permission on sockets
	block: fix an error code in add_partition()
	mlx5: fix bug reading rss_hash_type from CQE
	net: ieee802154: fix net_device reference release too early
	libceph: NULL deref on crush_decode() error path
	netfilter: ctnetlink: fix incorrect nf_ct_put during hash resize
	pNFS/flexfiles: missing error code in ff_layout_alloc_lseg()
	ASoC: rsnd: SSI PIO adjust to 24bit mode
	scsi: bnx2fc: fix race condition in bnx2fc_get_host_stats()
	fix race in drivers/char/random.c:get_reg()
	ext4: fix off-by-one on max nr_pages in ext4_find_unwritten_pgoff()
	tcp: better validation of received ack sequences
	net: move somaxconn init from sysctl code
	Input: elan_i2c - clear INT before resetting controller
	bonding: Don't update slave->link until ready to commit
	KVM: nVMX: Fix handling of lmsw instruction
	net: llc: add lock_sock in llc_ui_bind to avoid a race condition
	ARM: dts: ls1021a: add "fsl,ls1021a-esdhc" compatible string to esdhc node
	thermal: power_allocator: fix one race condition issue for thermal_instances list
	perf probe: Add warning message if there is unexpected event name
	l2tp: fix missing print session offset info
	rds; Reset rs->rs_bound_addr in rds_add_bound() failure path
	hwmon: (ina2xx) Make calibration register value fixed
	media: videobuf2-core: don't go out of the buffer range
	ASoC: Intel: cht_bsw_rt5645: Analog Mic support
	scsi: libiscsi: Allow sd_shutdown on bad transport
	scsi: mpt3sas: Proper handling of set/clear of "ATA command pending" flag.
	vfb: fix video mode and line_length being set when loaded
	gpio: label descriptors using the device name
	ASoC: Intel: sst: Fix the return value of 'sst_send_byte_stream_mrfld()'
	wl1251: check return from call to wl1251_acx_arp_ip_filter
	hdlcdrv: Fix divide by zero in hdlcdrv_ioctl
	ovl: filter trusted xattr for non-admin
	powerpc/[booke|4xx]: Don't clobber TCR[WP] when setting TCR[DIE]
	dmaengine: imx-sdma: Handle return value of clk_prepare_enable
	arm64: futex: Fix undefined behaviour with FUTEX_OP_OPARG_SHIFT usage
	net/mlx5: avoid build warning for uniprocessor
	cxgb4: FW upgrade fixes
	rtc: opal: Handle disabled TPO in opal_get_tpo_time()
	rtc: interface: Validate alarm-time before handling rollover
	SUNRPC: ensure correct error is reported by xs_tcp_setup_socket()
	net: freescale: fix potential null pointer dereference
	KVM: SVM: do not zero out segment attributes if segment is unusable or not present
	clk: scpi: fix return type of __scpi_dvfs_round_rate
	clk: Fix __set_clk_rates error print-string
	powerpc/spufs: Fix coredump of SPU contexts
	perf trace: Add mmap alias for s390
	qlcnic: Fix a sleep-in-atomic bug in qlcnic_82xx_hw_write_wx_2M and qlcnic_82xx_hw_read_wx_2M
	mISDN: Fix a sleep-in-atomic bug
	drm/omap: fix tiled buffer stride calculations
	cxgb4: fix incorrect cim_la output for T6
	Fix serial console on SNI RM400 machines
	bio-integrity: Do not allocate integrity context for bio w/o data
	skbuff: return -EMSGSIZE in skb_to_sgvec to prevent overflow
	sit: reload iphdr in ipip6_rcv
	net/mlx4: Fix the check in attaching steering rules
	net/mlx4: Check if Granular QoS per VF has been enabled before updating QP qos_vport
	perf header: Set proper module name when build-id event found
	perf report: Ensure the perf DSO mapping matches what libdw sees
	tags: honor COMPILED_SOURCE with apart output directory
	e1000e: fix race condition around skb_tstamp_tx()
	cx25840: fix unchecked return values
	mceusb: sporadic RX truncation corruption fix
	net: phy: avoid genphy_aneg_done() for PHYs without clause 22 support
	ARM: imx: Add MXC_CPU_IMX6ULL and cpu_is_imx6ull
	e1000e: Undo e1000e_pm_freeze if __e1000_shutdown fails
	perf/core: Correct event creation with PERF_FORMAT_GROUP
	MIPS: mm: fixed mappings: correct initialisation
	MIPS: mm: adjust PKMAP location
	MIPS: kprobes: flush_insn_slot should flush only if probe initialised
	Fix loop device flush before configure v3
	net: emac: fix reset timeout with AR8035 phy
	perf tests: Decompress kernel module before objdump
	skbuff: only inherit relevant tx_flags
	xen: avoid type warning in xchg_xen_ulong
	bnx2x: Allow vfs to disable txvlan offload
	sctp: fix recursive locking warning in sctp_do_peeloff
	sparc64: ldc abort during vds iso boot
	iio: magnetometer: st_magn_spi: fix spi_device_id table
	Bluetooth: Send HCI Set Event Mask Page 2 command only when needed
	cpuidle: dt: Add missing 'of_node_put()'
	ACPICA: Events: Add runtime stub support for event APIs
	ACPICA: Disassembler: Abort on an invalid/unknown AML opcode
	s390/dasd: fix hanging safe offline
	vxlan: dont migrate permanent fdb entries during learn
	bcache: stop writeback thread after detaching
	bcache: segregate flash only volume write streams
	scsi: libsas: fix memory leak in sas_smp_get_phy_events()
	scsi: libsas: fix error when getting phy events
	scsi: libsas: initialize sas_phy status according to response of DISCOVER
	blk-mq: fix kernel oops in blk_mq_tag_idle()
	tty: n_gsm: Allow ADM response in addition to UA for control dlci
	EDAC, mv64x60: Fix an error handling path
	cxgb4vf: Fix SGE FL buffer initialization logic for 64K pages
	perf tools: Fix copyfile_offset update of output offset
	ipsec: check return value of skb_to_sgvec always
	rxrpc: check return value of skb_to_sgvec always
	virtio_net: check return value of skb_to_sgvec always
	virtio_net: check return value of skb_to_sgvec in one more location
	random: use lockless method of accessing and updating f->reg_idx
	futex: Remove requirement for lock_page() in get_futex_key()
	Kbuild: provide a __UNIQUE_ID for clang
	arp: fix arp_filter on l3slave devices
	net: fix possible out-of-bound read in skb_network_protocol()
	net/ipv6: Fix route leaking between VRFs
	netlink: make sure nladdr has correct size in netlink_connect()
	net/sched: fix NULL dereference in the error path of tcf_bpf_init()
	pptp: remove a buggy dst release in pptp_connect()
	sctp: do not leak kernel memory to user space
	sctp: sctp_sockaddr_af must check minimal addr length for AF_INET6
	sky2: Increase D3 delay to sky2 stops working after suspend
	vhost: correctly remove wait queue during poll failure
	vlan: also check phy_driver ts_info for vlan's real device
	bonding: fix the err path for dev hwaddr sync in bond_enslave
	bonding: move dev_mc_sync after master_upper_dev_link in bond_enslave
	bonding: process the err returned by dev_set_allmulti properly in bond_enslave
	net: fool proof dev_valid_name()
	ip_tunnel: better validate user provided tunnel names
	ipv6: sit: better validate user provided tunnel names
	ip6_gre: better validate user provided tunnel names
	ip6_tunnel: better validate user provided tunnel names
	vti6: better validate user provided tunnel names
	r8169: fix setting driver_data after register_netdev
	net sched actions: fix dumping which requires several messages to user space
	net/ipv6: Increment OUTxxx counters after netfilter hook
	ipv6: the entire IPv6 header chain must fit the first fragment
	vrf: Fix use after free and double free in vrf_finish_output
	Revert "xhci: plat: Register shutdown for xhci_plat"
	Linux 4.4.128

Change-Id: I9c1e58f634cc18f15a840c9d192c892dfcc5ff73
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-04-14 15:35:32 +02:00
Tomi Valkeinen
f973300dbd drm/omap: fix tiled buffer stride calculations
[ Upstream commit cc8dd7661ccc2d8dc88921da8e6cc7c2fcdb0341 ]

omap_gem uses page alignment for buffer stride. The related calculations
are a bit off, though, as byte stride of 4096 gets aligned to 8192,
instead of 4096.

This patch changes the code to use DIV_ROUND_UP(), which fixes those
calculations and makes them more readable.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-13 19:50:16 +02:00
Suprith Malligere Shankaregowda
8604e9806f drm: msm: fix potential NULL pointer dereference
adding NULL check before dereferencing a pointer.

Change-Id: I260b016abdcb16f5b16e58671ed208df21c99a46
Signed-off-by: Suprith Malligere Shankaregowda <supgow@codeaurora.org>
2018-04-09 05:40:01 -07:00
Archana Sriram
d620817f3a msm: kgsl: Enhance reading lm_sequence in _execute_reg_sequence()
Modified conditional checks to read lm_sequence so as to avoid
the possibility of pointer overflow.

CRs-Fixed: 2212443
Change-Id: I72b30e35996c40f23fc81739e27724b1188f1c05
Signed-off-by: Archana Sriram <apsrir@codeaurora.org>
2018-04-09 03:57:51 -07:00
Camus Wong
d3fd31550b [drm/sde] fix uninitialized src/dst size in sde plane
SDE plane src/dst size is uninitialized and programmed to hw when
only color format is changed. This change will only configure hw
when src/dst size is calculated.

Change-Id: I5953f899a2c503b1d8f2577c28a67711b9ed9a67
Signed-off-by: Camus Wong <camusw@codeaurora.org>
Signed-off-by: Rahul Sharma <rahsha@codeaurora.org>
2018-04-05 23:52:59 -07:00
Linux Build Service Account
d83747f35c Merge "drm: msm: fix potential NULL pointer dereference" 2018-04-02 01:45:27 -07:00
Rob Herring
38033e9f37 UPSTREAM: drm: virtio-gpu: set atomic flag
Advertise atomic mode setting capability to user space.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 5443ce86fa37e7d3cc63d2067d05e3388fdeec17)

Change-Id: I2c5db7056a2c0ce99dd83b234f064671ee5b2e2a
Signed-off-by: Alistair Strachan <astrachan@google.com>
2018-03-29 10:39:18 -07:00
Rob Herring
c5707dc8d2 UPSTREAM: drm: virtio-gpu: transfer dumb buffers to host on plane update
For dumb buffers, we need to transfer them to the host when updating a
plane.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 4109e7f7d5aeefaa1d72f9ab4c63aa5d79fc81fb)

Change-Id: I125ccb3943d82ac1a7738e2afde28eea9e55abcc
Signed-off-by: Alistair Strachan <astrachan@google.com>
2018-03-29 10:39:15 -07:00
Rob Herring
9f7a117985 UPSTREAM: drm: virtio-gpu: ensure plane is flushed to host on atomic update
This fixes drawing updates when updating planes with atomic API.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit bd17d1c77c2ae3bb988a256ea5bda6d405b62b56)

Change-Id: Ib688992f35a775e2c90640387eceaf343df846de
Signed-off-by: Alistair Strachan <astrachan@google.com>
2018-03-29 10:39:11 -07:00
Rob Herring
d9e0aa6379 UPSTREAM: drm: virtio-gpu: get the fb from the plane state for atomic updates
When using the atomic API, plane->fb is not set when calling
virtio_gpu_plane_atomic_update. Use plane->state->fb instead.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 11c94ace5e25a1b6d12184b1a6f54ef4dc75aa62)

Change-Id: Ic5f4e3852fcd44af965d6a1cf784c38a34aee19e
Signed-off-by: Alistair Strachan <astrachan@google.com>
2018-03-29 10:39:03 -07:00
Greg Kroah-Hartman
38f41ec1cb This is the 4.4.125 stable release
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Merge 4.4.125 into android-4.4

Changes in 4.4.125
	MIPS: ralink: Remove ralink_halt()
	iio: st_pressure: st_accel: pass correct platform data to init
	ALSA: usb-audio: Fix parsing descriptor of UAC2 processing unit
	ALSA: aloop: Sync stale timer before release
	ALSA: aloop: Fix access to not-yet-ready substream via cable
	ALSA: hda/realtek - Always immediately update mute LED with pin VREF
	mmc: dw_mmc: fix falling from idmac to PIO mode when dw_mci_reset occurs
	PCI: Add function 1 DMA alias quirk for Highpoint RocketRAID 644L
	ahci: Add PCI-id for the Highpoint Rocketraid 644L card
	clk: bcm2835: Protect sections updating shared registers
	Bluetooth: btusb: Fix quirk for Atheros 1525/QCA6174
	libata: fix length validation of ATAPI-relayed SCSI commands
	libata: remove WARN() for DMA or PIO command without data
	libata: Apply NOLPM quirk to Crucial MX100 512GB SSDs
	libata: disable LPM for Crucial BX100 SSD 500GB drive
	libata: Enable queued TRIM for Samsung SSD 860
	libata: Apply NOLPM quirk to Crucial M500 480 and 960GB SSDs
	libata: Make Crucial BX100 500GB LPM quirk apply to all firmware versions
	libata: Modify quirks for MX100 to limit NCQ_TRIM quirk to MU01 version
	mm/vmalloc: add interfaces to free unmapped page table
	x86/mm: implement free pmd/pte page interfaces
	drm/vmwgfx: Fix a destoy-while-held mutex problem.
	drm/radeon: Don't turn off DP sink when disconnected
	drm: udl: Properly check framebuffer mmap offsets
	acpi, numa: fix pxm to online numa node associations
	brcmfmac: fix P2P_DEVICE ethernet address generation
	rtlwifi: rtl8723be: Fix loss of signal
	tracing: probeevent: Fix to support minus offset from symbol
	mtd: nand: fsl_ifc: Fix nand waitfunc return value
	staging: ncpfs: memory corruption in ncp_read_kernel()
	can: cc770: Fix stalls on rt-linux, remove redundant IRQ ack
	can: cc770: Fix queue stall & dropped RTR reply
	can: cc770: Fix use after free in cc770_tx_interrupt()
	tty: vt: fix up tabstops properly
	kvm/x86: fix icebp instruction handling
	x86/build/64: Force the linker to use 2MB page size
	x86/boot/64: Verify alignment of the LOAD segment
	x86/entry/64: Don't use IST entry for #BP stack
	perf/x86/intel: Don't accidentally clear high bits in bdw_limit_period()
	staging: lustre: ptlrpc: kfree used instead of kvfree
	kbuild: disable clang's default use of -fmerge-all-constants
	bpf: skip unnecessary capability check
	bpf, x64: increase number of passes
	Linux 4.4.125

Change-Id: I14b307cd27ff088800174c74819a3ff1790b41ce
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-03-29 11:37:54 +02:00
Greg Kroah-Hartman
224eaa8a8e drm: udl: Properly check framebuffer mmap offsets
commit 3b82a4db8eaccce735dffd50b4d4e1578099b8e8 upstream.

The memmap options sent to the udl framebuffer driver were not being
checked for all sets of possible crazy values.  Fix this up by properly
bounding the allowed values.

Reported-by: Eyal Itkin <eyalit@checkpoint.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180321154553.GA18454@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28 18:40:15 +02:00
Michel Dänzer
20b74f2b70 drm/radeon: Don't turn off DP sink when disconnected
commit 2681bc79eeb640562c932007bfebbbdc55bf6a7d upstream.

Turning off the sink in this case causes various issues, because
userspace expects it to stay on until it turns it off explicitly.

Instead, turn the sink off and back on when a display is connected
again. This dance seems necessary for link training to work correctly.

Bugzilla: https://bugs.freedesktop.org/105308
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28 18:40:15 +02:00
Thomas Hellstrom
9c6c892ed8 drm/vmwgfx: Fix a destoy-while-held mutex problem.
commit 73a88250b70954a8f27c2444e1c2411bba3c29d9 upstream.

When validating legacy surfaces, the backup bo might be destroyed at
surface validate time. However, the kms resource validation code may have
the bo reserved, so we will destroy a locked mutex. While there shouldn't
be any other users of that mutex when it is destroyed, it causes a lock
leak and thus throws a lockdep error.

Fix this by having the kms resource validation code hold a reference to
the bo while we have it reserved. We do this by introducing a validation
context which might come in handy when the kms code is extended to validate
multiple resources or buffers.

Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-28 18:40:14 +02:00
Rahul Sharma
b86526c85e drm/msm: check hpd_off flag only for pluggable displays
This change will wrap the 'hpd_off' flag with pluggable displays.
In non-pluggable display case 'hpd_off' flag prevents disabling
of HPD clocks and hence display subsystem doesn't got into suspend
state.

Change-Id: I28ade8fb60a60a15f1d23009de63bbf9f10c7c77
Signed-off-by: Rahul Sharma <rahsha@codeaurora.org>
Signed-off-by: Suprith Malligere Shankaregowda <supgow@codeaurora.org>
2018-03-27 22:01:10 -07:00
Guchun Chen
f42176b693 drm: msm: fix potential NULL pointer dereference
Add checker before using pointers, to avoid NULL pointer
dereference happens.

CRs-Fixed: 2202957
Change-Id: I99930e1e9477130fcfceadad3f3a2ff5c9e89cda
Signed-off-by: Guchun Chen <guchunc@codeaurora.org>
2018-03-27 12:37:35 +08:00
Greg Kroah-Hartman
851fb4da32 This is the 4.4.124 stable release
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Merge 4.4.124 into android-4.4

Changes in 4.4.124
	tpm: fix potential buffer overruns caused by bit glitches on the bus
	tpm_tis: fix potential buffer overruns caused by bit glitches on the bus
	SMB3: Validate negotiate request must always be signed
	CIFS: Enable encryption during session setup phase
	staging: android: ashmem: Fix possible deadlock in ashmem_ioctl
	platform/x86: asus-nb-wmi: Add wapf4 quirk for the X302UA
	regulator: anatop: set default voltage selector for pcie
	x86: i8259: export legacy_pic symbol
	rtc: cmos: Do not assume irq 8 for rtc when there are no legacy irqs
	Input: ar1021_i2c - fix too long name in driver's device table
	time: Change posix clocks ops interfaces to use timespec64
	ACPI/processor: Fix error handling in __acpi_processor_start()
	ACPI/processor: Replace racy task affinity logic
	cpufreq/sh: Replace racy task affinity logic
	genirq: Use irqd_get_trigger_type to compare the trigger type for shared IRQs
	i2c: i2c-scmi: add a MS HID
	net: ipv6: send unsolicited NA on admin up
	media/dvb-core: Race condition when writing to CAM
	spi: dw: Disable clock after unregistering the host
	ath: Fix updating radar flags for coutry code India
	clk: ns2: Correct SDIO bits
	scsi: virtio_scsi: Always try to read VPD pages
	KVM: PPC: Book3S PR: Exit KVM on failed mapping
	ARM: 8668/1: ftrace: Fix dynamic ftrace with DEBUG_RODATA and !FRAME_POINTER
	iommu/omap: Register driver before setting IOMMU ops
	md/raid10: wait up frozen array in handle_write_completed
	NFS: Fix missing pg_cleanup after nfs_pageio_cond_complete()
	tcp: remove poll() flakes with FastOpen
	e1000e: fix timing for 82579 Gigabit Ethernet controller
	ALSA: hda - Fix headset microphone detection for ASUS N551 and N751
	IB/ipoib: Fix deadlock between ipoib_stop and mcast join flow
	IB/ipoib: Update broadcast object if PKey value was changed in index 0
	HSI: ssi_protocol: double free in ssip_pn_xmit()
	IB/mlx4: Take write semaphore when changing the vma struct
	IB/mlx4: Change vma from shared to private
	ASoC: Intel: Skylake: Uninitialized variable in probe_codec()
	Fix driver usage of 128B WQEs when WQ_CREATE is V1.
	netfilter: xt_CT: fix refcnt leak on error path
	openvswitch: Delete conntrack entry clashing with an expectation.
	mmc: host: omap_hsmmc: checking for NULL instead of IS_ERR()
	wan: pc300too: abort path on failure
	qlcnic: fix unchecked return value
	scsi: mac_esp: Replace bogus memory barrier with spinlock
	infiniband/uverbs: Fix integer overflows
	NFS: don't try to cross a mountpount when there isn't one there.
	iio: st_pressure: st_accel: Initialise sensor platform data properly
	mt7601u: check return value of alloc_skb
	rndis_wlan: add return value validation
	Btrfs: send, fix file hole not being preserved due to inline extent
	mac80211: don't parse encrypted management frames in ieee80211_frame_acked
	mfd: palmas: Reset the POWERHOLD mux during power off
	mtip32xx: use runtime tag to initialize command header
	staging: unisys: visorhba: fix s-Par to boot with option CONFIG_VMAP_STACK set to y
	staging: wilc1000: fix unchecked return value
	mmc: sdhci-of-esdhc: limit SD clock for ls1012a/ls1046a
	ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP
	ipmi/watchdog: fix wdog hang on panic waiting for ipmi response
	ACPI / PMIC: xpower: Fix power_table addresses
	drm/nouveau/kms: Increase max retries in scanout position queries.
	bnx2x: Align RX buffers
	power: supply: pda_power: move from timer to delayed_work
	Input: twl4030-pwrbutton - use correct device for irq request
	md/raid10: skip spare disk as 'first' disk
	ia64: fix module loading for gcc-5.4
	tcm_fileio: Prevent information leak for short reads
	video: fbdev: udlfb: Fix buffer on stack
	sm501fb: don't return zero on failure path in sm501fb_start()
	net: hns: fix ethtool_get_strings overflow in hns driver
	cifs: small underflow in cnvrtDosUnixTm()
	rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticks
	rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVAL
	perf tests kmod-path: Don't fail if compressed modules aren't supported
	Bluetooth: hci_qca: Avoid setup failure on missing rampatch
	media: c8sectpfe: fix potential NULL pointer dereference in c8sectpfe_timer_interrupt
	drm/msm: fix leak in failed get_pages
	RDMA/iwpm: Fix uninitialized error code in iwpm_send_mapinfo()
	rtlwifi: rtl_pci: Fix the bug when inactiveps is enabled.
	media: bt8xx: Fix err 'bt878_probe()'
	media: [RESEND] media: dvb-frontends: Add delay to Si2168 restart
	cros_ec: fix nul-termination for firmware build info
	platform/chrome: Use proper protocol transfer function
	mmc: avoid removing non-removable hosts during suspend
	IB/ipoib: Avoid memory leak if the SA returns a different DGID
	RDMA/cma: Use correct size when writing netlink stats
	IB/umem: Fix use of npages/nmap fields
	vgacon: Set VGA struct resource types
	drm/omap: DMM: Check for DMM readiness after successful transaction commit
	pty: cancel pty slave port buf's work in tty_release
	coresight: Fix disabling of CoreSight TPIU
	pinctrl: Really force states during suspend/resume
	iommu/vt-d: clean up pr_irq if request_threaded_irq fails
	ip6_vti: adjust vti mtu according to mtu of lower device
	RDMA/ocrdma: Fix permissions for OCRDMA_RESET_STATS
	nfsd4: permit layoutget of executable-only files
	clk: si5351: Rename internal plls to avoid name collisions
	dmaengine: ti-dma-crossbar: Fix event mapping for TPCC_EVT_MUX_60_63
	RDMA/ucma: Fix access to non-initialized CM_ID object
	Linux 4.4.124

Change-Id: Iac6f5bda7941f032c5b1f58750e084140b0e3f23
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-03-25 10:51:55 +02:00
Peter Ujfalusi
029c2cfde9 drm/omap: DMM: Check for DMM readiness after successful transaction commit
[ Upstream commit b7ea6b286c4051e043f691781785e3c4672f014a ]

Check the status of the DMM engine after it is reported that the
transaction was completed as in rare cases the engine might not reached a
working state.

The wait_status() will print information in case the DMM is not reached the
expected state and the dmm_txn_commit() will return with an error code to
make sure that we are not continuing with a broken setup.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-24 10:58:48 +01:00
Prakash Kamliya
c1b1c1af96 drm/msm: fix leak in failed get_pages
[ Upstream commit 62e3a3e342af3c313ab38603811ecdb1fcc79edb ]

get_pages doesn't keep a reference of the pages allocated
when it fails later in the code path. This can lead to
a memory leak. Keep reference of the allocated pages so
that it can be freed when msm_gem_free_object gets called
later during cleanup.

Signed-off-by: Prakash Kamliya <pkamliya@codeaurora.org>
Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-24 10:58:46 +01:00
Mario Kleiner
8fffdba301 drm/nouveau/kms: Increase max retries in scanout position queries.
[ Upstream commit 60b95d709525e3ce1c51e1fc93175dcd1755d345 ]

So far we only allowed for 1 retry and just failed the query
- and thereby high precision vblank timestamping - if we did
not get a reasonable result, as such a failure wasn't considered
all too horrible. There are a few NVidia gpu models out there which
may need a bit more than 1 retry to get a successful query result
under some conditions.

Since Linux 4.4 the update code for vblank counter and timestamp
in drm_update_vblank_count() changed so that the implementation
assumes that high precision vblank timestamping of a kms driver
either consistently succeeds or consistently fails for a given
video mode and encoder/connector combo. Iow. switching from success
to fail or vice versa on a modeset or connector change is ok, but
spurious temporary failure for a given setup can confuse the core
code and potentially cause bad miscounting of vblanks and confusion
or hangs in userspace clients which rely on vblank  stuff, e.g.,
desktop compositors.

Therefore change the max retry count to a larger number - more than
any gpu so far is known to need to succeed, but still low enough
so that these queries which do also happen in vblank interrupt are
still fast enough to be not disastrously long if something would
go badly wrong with them.

As such sporadic retries only happen seldom even on affected gpu's,
this could mean a vblank irq could take a few dozen microseconds
longer every few hours of uptime -- better than a desktop compositor
randomly hanging every couple of hours or days of uptime in a hard
to reproduce manner.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-24 10:58:45 +01:00
Camus Wong
bc5c74d801 DRM: SDE: Fixing the power up sequence with early splash
If the splash clean up is trigger, the MDP core power on call should
be skipped.  MDP core already turned on in sde_kms_hw_init() if splash
handoff enabled.

Change-Id: Ie19c4eb2d0455b0c19615e3bb29aae4b4c6c8abf
Signed-off-by: Camus Wong <camusw@codeaurora.org>
Signed-off-by: Rahul Sharma <rahsha@codeaurora.org>
Signed-off-by: Suprith Malligere Shankaregowda <supgow@codeaurora.org>
2018-03-23 00:08:11 -07:00
Linux Build Service Account
ed6f6fd1c1 Merge "drm/msm: refine hdmi bridge implementation" 2018-03-22 12:23:13 -07:00
Greg Kroah-Hartman
79e7124a51 This is the 4.4.123 stable release
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Merge 4.4.123 into android-4.4

Changes in 4.4.123
	blkcg: fix double free of new_blkg in blkcg_init_queue
	Input: tsc2007 - check for presence and power down tsc2007 during probe
	staging: speakup: Replace BUG_ON() with WARN_ON().
	staging: wilc1000: add check for kmalloc allocation failure.
	HID: reject input outside logical range only if null state is set
	drm: qxl: Don't alloc fbdev if emulation is not supported
	ath10k: fix a warning during channel switch with multiple vaps
	PCI/MSI: Stop disabling MSI/MSI-X in pci_device_shutdown()
	selinux: check for address length in selinux_socket_bind()
	perf sort: Fix segfault with basic block 'cycles' sort dimension
	i40e: Acquire NVM lock before reads on all devices
	i40e: fix ethtool to get EEPROM data from X722 interface
	perf tools: Make perf_event__synthesize_mmap_events() scale
	drivers: net: xgene: Fix hardware checksum setting
	drm: Defer disabling the vblank IRQ until the next interrupt (for instant-off)
	ath10k: disallow DFS simulation if DFS channel is not enabled
	perf probe: Return errno when not hitting any event
	HID: clamp input to logical range if no null state
	net/8021q: create device with all possible features in wanted_features
	ARM: dts: Adjust moxart IRQ controller and flags
	batman-adv: handle race condition for claims between gateways
	of: fix of_device_get_modalias returned length when truncating buffers
	solo6x10: release vb2 buffers in solo_stop_streaming()
	scsi: ipr: Fix missed EH wakeup
	media: i2c/soc_camera: fix ov6650 sensor getting wrong clock
	timers, sched_clock: Update timeout for clock wrap
	sysrq: Reset the watchdog timers while displaying high-resolution timers
	Input: qt1070 - add OF device ID table
	sched: act_csum: don't mangle TCP and UDP GSO packets
	ASoC: rcar: ssi: don't set SSICR.CKDV = 000 with SSIWSR.CONT
	spi: omap2-mcspi: poll OMAP2_MCSPI_CHSTAT_RXS for PIO transfer
	tcp: sysctl: Fix a race to avoid unexpected 0 window from space
	dmaengine: imx-sdma: add 1ms delay to ensure SDMA channel is stopped
	driver: (adm1275) set the m,b and R coefficients correctly for power
	mm: Fix false-positive VM_BUG_ON() in page_cache_{get,add}_speculative()
	blk-throttle: make sure expire time isn't too big
	f2fs: relax node version check for victim data in gc
	bonding: refine bond_fold_stats() wrap detection
	braille-console: Fix value returned by _braille_console_setup
	drm/vmwgfx: Fixes to vmwgfx_fb
	vxlan: vxlan dev should inherit lowerdev's gso_max_size
	NFC: nfcmrvl: Include unaligned.h instead of access_ok.h
	NFC: nfcmrvl: double free on error path
	ARM: dts: r8a7790: Correct parent of SSI[0-9] clocks
	ARM: dts: r8a7791: Correct parent of SSI[0-9] clocks
	powerpc: Avoid taking a data miss on every userspace instruction miss
	net/faraday: Add missing include of of.h
	ARM: dts: koelsch: Correct clock frequency of X2 DU clock input
	reiserfs: Make cancel_old_flush() reliable
	ALSA: firewire-digi00x: handle all MIDI messages on streaming packets
	fm10k: correctly check if interface is removed
	scsi: ses: don't get power status of SES device slot on probe
	apparmor: Make path_max parameter readonly
	iommu/iova: Fix underflow bug in __alloc_and_insert_iova_range
	video: ARM CLCD: fix dma allocation size
	drm/radeon: Fail fb creation from imported dma-bufs.
	drm/amdgpu: Fail fb creation from imported dma-bufs. (v2)
	coresight: Fixes coresight DT parse to get correct output port ID.
	MIPS: BPF: Quit clobbering callee saved registers in JIT code.
	MIPS: BPF: Fix multiple problems in JIT skb access helpers.
	MIPS: r2-on-r6-emu: Fix BLEZL and BGTZL identification
	MIPS: r2-on-r6-emu: Clear BLTZALL and BGEZALL debugfs counters
	regulator: isl9305: fix array size
	md/raid6: Fix anomily when recovering a single device in RAID6.
	usb: dwc2: Make sure we disconnect the gadget state
	usb: gadget: dummy_hcd: Fix wrong power status bit clear/reset in dummy_hub_control()
	drivers/perf: arm_pmu: handle no platform_device
	perf inject: Copy events when reordering events in pipe mode
	perf session: Don't rely on evlist in pipe mode
	scsi: sg: check for valid direction before starting the request
	scsi: sg: close race condition in sg_remove_sfp_usercontext()
	kprobes/x86: Fix kprobe-booster not to boost far call instructions
	kprobes/x86: Set kprobes pages read-only
	pwm: tegra: Increase precision in PWM rate calculation
	wil6210: fix memory access violation in wil_memcpy_from/toio_32
	drm/edid: set ELD connector type in drm_edid_to_eld()
	video/hdmi: Allow "empty" HDMI infoframes
	HID: elo: clear BTN_LEFT mapping
	ARM: dts: exynos: Correct Trats2 panel reset line
	sched: Stop switched_to_rt() from sending IPIs to offline CPUs
	sched: Stop resched_cpu() from sending IPIs to offline CPUs
	test_firmware: fix setting old custom fw path back on exit
	net: xfrm: allow clearing socket xfrm policies.
	mtd: nand: fix interpretation of NAND_CMD_NONE in nand_command[_lp]()
	ARM: dts: am335x-pepper: Fix the audio CODEC's reset pin
	ARM: dts: omap3-n900: Fix the audio CODEC's reset pin
	ath10k: update tdls teardown state to target
	cpufreq: Fix governor module removal race
	clk: qcom: msm8916: fix mnd_width for codec_digcodec
	ath10k: fix invalid STS_CAP_OFFSET_MASK
	tools/usbip: fixes build with musl libc toolchain
	spi: sun6i: disable/unprepare clocks on remove
	scsi: core: scsi_get_device_flags_keyed(): Always return device flags
	scsi: devinfo: apply to HP XP the same flags as Hitachi VSP
	scsi: dh: add new rdac devices
	media: cpia2: Fix a couple off by one bugs
	veth: set peer GSO values
	drm/amdkfd: Fix memory leaks in kfd topology
	agp/intel: Flush all chipset writes after updating the GGTT
	mac80211_hwsim: enforce PS_MANUAL_POLL to be set after PS_ENABLED
	mac80211: remove BUG() when interface type is invalid
	ASoC: nuc900: Fix a loop timeout test
	ipvlan: add L2 check for packets arriving via virtual devices
	rcutorture/configinit: Fix build directory error message
	ima: relax requiring a file signature for new files with zero length
	selftests/x86/entry_from_vm86: Exit with 1 if we fail
	selftests/x86: Add tests for User-Mode Instruction Prevention
	selftests/x86: Add tests for the STR and SLDT instructions
	selftests/x86/entry_from_vm86: Add test cases for POPF
	x86/vm86/32: Fix POPF emulation
	x86/mm: Fix vmalloc_fault to use pXd_large
	ALSA: pcm: Fix UAF in snd_pcm_oss_get_formats()
	ALSA: hda - Revert power_save option default value
	ALSA: seq: Fix possible UAF in snd_seq_check_queue()
	ALSA: seq: Clear client entry before deleting else at closing
	drm/amdgpu/dce: Don't turn off DP sink when disconnected
	fs: Teach path_connected to handle nfs filesystems with multiple roots.
	lock_parent() needs to recheck if dentry got __dentry_kill'ed under it
	fs/aio: Add explicit RCU grace period when freeing kioctx
	fs/aio: Use RCU accessors for kioctx_table->table[]
	irqchip/gic-v3-its: Ensure nr_ites >= nr_lpis
	scsi: sg: fix SG_DXFER_FROM_DEV transfers
	scsi: sg: fix static checker warning in sg_is_valid_dxfer
	scsi: sg: only check for dxfer_len greater than 256M
	ARM: dts: LogicPD Torpedo: Fix I2C1 pinmux
	btrfs: alloc_chunk: fix DUP stripe size handling
	btrfs: Fix use-after-free when cleaning up fs_devs with a single stale device
	USB: gadget: udc: Add missing platform_device_put() on error in bdc_pci_probe()
	usb: gadget: bdc: 64-bit pointer capability check
	bpf: fix incorrect sign extension in check_alu_op()
	Linux 4.4.123

Change-Id: Ieb89411248f93522dde29edb8581f8ece22e33a7
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-03-22 09:57:28 +01:00
Michel Dänzer
89a42b03fd drm/amdgpu/dce: Don't turn off DP sink when disconnected
commit 7d617264eb22b18d979eac6e85877a141253034e upstream.

Turning off the sink in this case causes various issues, because
userspace expects it to stay on until it turns it off explicitly.

Instead, turn the sink off and back on when a display is connected
again. This dance seems necessary for link training to work correctly.

Bugzilla: https://bugs.freedesktop.org/105308
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22 09:23:31 +01:00
Yong Zhao
7a9a365664 drm/amdkfd: Fix memory leaks in kfd topology
[ Upstream commit 5108d768408abc80e4e8d99f5b406a73cb04056b ]

Kobject created using kobject_create_and_add() can be freed using
kobject_put() when there is no referenece any more. However,
kobject memory allocated with kzalloc() has to set up a release
callback in order to free it when the counter decreases to 0.
Otherwise it causes memory leak.

Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22 09:23:29 +01:00
Jani Nikula
b59718a134 drm/edid: set ELD connector type in drm_edid_to_eld()
[ Upstream commit 1d1c36650752b7fb81cee515a9bba4131cac4b7c ]

Since drm_edid_to_eld() knows the connector type, we can set the type in
ELD while at it. Most connectors this gets called on are not DP
encoders, and with the HDMI type being 0, this does not change behaviour
for non-DP.

For i915 having this in place earlier would have saved a considerable
amount of debugging that lead to the fix 2d8f63297b9f ("drm/i915: always
update ELD connector type after get modes"). I don't see other drivers,
even the ones calling drm_edid_to_eld() on DP connectors, setting the
connector type in ELD.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d527b31619528c477c2c136f25cdf118bc0cfc1d.1509545641.git.jani.nikula@intel.com
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22 09:23:27 +01:00
Christopher James Halse Rogers
3e339465a8 drm/amdgpu: Fail fb creation from imported dma-bufs. (v2)
[ Upstream commit 1769152ac64b0b07583f696b621624df2ca4c840 ]

Any use of the framebuffer will migrate it to VRAM, which is not sensible for
an imported dma-buf.

v2: Use DRM_DEBUG_KMS to prevent userspace accidentally spamming dmesg.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
CC: amd-gfx@lists.freedesktop.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22 09:23:25 +01:00
Christopher James Halse Rogers
6e6d38bf94 drm/radeon: Fail fb creation from imported dma-bufs.
[ Upstream commit a294043b2fbd8de69d161457ed0c7a4026bbfa5a ]

Any use of the framebuffer will migrate it to VRAM, which is not sensible for
an imported dma-buf.

v2: Use DRM_DEBUG_KMS to prevent userspace accidentally spamming dmesg.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
CC: amd-gfx@lists.freedesktop.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22 09:23:25 +01:00
Sinclair Yeh
e5d46d1ede drm/vmwgfx: Fixes to vmwgfx_fb
[ Upstream commit aa74f0687cfe998e59b20d6454f45e8aa4403c45 ]

1.  When unsetting a mode, num_connector should be set to zero
2.  The pixel_format field needs to be initialized as newer DRM internal
    functions checks this field
3.  Take the drm_modeset_lock_all() because vmw_fb_kms_detach() can
    change current mode

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22 09:23:23 +01:00
Chris Wilson
1b3ec39d3b drm: Defer disabling the vblank IRQ until the next interrupt (for instant-off)
[ Upstream commit 608b20506941969ea30d8c08dc9ae02bb87dbf7d ]

On vblank instant-off systems, we can get into a situation where the cost
of enabling and disabling the vblank IRQ around a drmWaitVblank query
dominates. And with the advent of even deeper hardware sleep state,
touching registers becomes ever more expensive.  However, we know that if
the user wants the current vblank counter, they are also very likely to
immediately queue a vblank wait and so we can keep the interrupt around
and only turn it off if we have no further vblank requests queued within
the interrupt interval.

After vblank event delivery, this patch adds a shadow of one vblank where
the interrupt is kept alive for the user to query and queue another vblank
event. Similarly, if the user is using blocking drmWaitVblanks, the
interrupt will be disabled on the IRQ following the wait completion.
However, if the user is simply querying the current vblank counter and
timestamp, the interrupt will be disabled after every IRQ and the user
will enabled it again on the first query following the IRQ.

v2: Mario Kleiner -
After testing this, one more thing that would make sense is to move
the disable block at the end of drm_handle_vblank() instead of at the
top.

Turns out that if high precision timestaming is disabled or doesn't
work for some reason (as can be simulated by echo 0 >
/sys/module/drm/parameters/timestamp_precision_usec), then with your
delayed disable code at its current place, the vblank counter won't
increment anymore at all for instant queries, ie. with your other
"instant query" patches. Clients which repeatedly query the counter
and wait for it to progress will simply hang, spinning in an endless
query loop. There's that comment in vblank_disable_and_save:

"* Skip this step if there isn't any high precision timestamp
 * available. In that case we can't account for this and just
 * hope for the best.
 */

With the disable happening after leading edge of vblank (== hw counter
increment already happened) but before the vblank counter/timestamp
handling in drm_handle_vblank, that step is needed to keep the counter
progressing, so skipping it is bad.

Now without high precision timestamping support, a kms driver must not
set dev->vblank_disable_immediate = true, as this would cause problems
for clients, so this shouldn't matter, but it would be good to still
make this robust against a future kms driver which might have
unreliable high precision timestamping, e.g., high precision
timestamping that intermittently doesn't work.

v3: Patch before coffee needs extra coffee.

Testcase: igt/kms_vblank
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Michel Dänzer <michel@daenzer.net>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Dave Airlie <airlied@redhat.com>,
Cc: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315204027.20160-1-chris@chris-wilson.co.uk
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22 09:23:20 +01:00
Gabriel Krisman Bertazi
e1a3bc4583 drm: qxl: Don't alloc fbdev if emulation is not supported
[ Upstream commit 861078381ba56b56808113736000d9e7ead349c8 ]

If fbdev emulation is disabled, the QXL shutdown path will try to clean
a framebuffer that wasn't initialized, hitting the Oops below.  The
problem is that even when FBDEV_EMULATION is disabled we allocate the
qfbdev strutucture, but we don't initialize it.  The fix is to stop
allocating the memory, since it won't be used.  This allows the existing
verification in the cleanup hook to do it's job preventing the oops.

Now that we don't allocate the unused fbdev structure, we need to be
careful when dereferencing it in the PM suspend hook.

[   24.284684] BUG: unable to handle kernel NULL pointer dereference at 00000000000002e0
[   24.285627] IP: mutex_lock+0x18/0x30
[   24.286049] PGD 78cdf067
[   24.286050] PUD 7940f067
[   24.286344] PMD 0
[   24.286649]
[   24.287072] Oops: 0002 [#1] SMP
[   24.287422] Modules linked in: qxl
[   24.287806] CPU: 0 PID: 2328 Comm: bash Not tainted 4.10.0-rc5+ #97
[   24.288515] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[   24.289681] task: ffff88007c4c0000 task.stack: ffffc90001b58000
[   24.290354] RIP: 0010:mutex_lock+0x18/0x30
[   24.290812] RSP: 0018:ffffc90001b5bcb0 EFLAGS: 00010246
[   24.291401] RAX: 0000000000000000 RBX: 00000000000002e0 RCX: 0000000000000000
[   24.292209] RDX: ffff88007c4c0000 RSI: 0000000000000001 RDI: 00000000000002e0
[   24.292987] RBP: ffffc90001b5bcb8 R08: fffffffffffffffe R09: 0000000000000001
[   24.293797] R10: ffff880078d80b80 R11: 0000000000011400 R12: 0000000000000000
[   24.294601] R13: 00000000000002e0 R14: ffffffffa0009c28 R15: 0000000000000060
[   24.295439] FS:  00007f30e3acbb40(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000
[   24.296364] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.296997] CR2: 00000000000002e0 CR3: 0000000078c7b000 CR4: 00000000000006f0
[   24.297813] Call Trace:
[   24.298097]  drm_framebuffer_cleanup+0x1f/0x70
[   24.298612]  qxl_fbdev_fini+0x68/0x90 [qxl]
[   24.299074]  qxl_modeset_fini+0xd/0x30 [qxl]
[   24.299562]  qxl_pci_remove+0x22/0x50 [qxl]
[   24.300025]  pci_device_remove+0x34/0xb0
[   24.300507]  device_release_driver_internal+0x150/0x200
[   24.301082]  device_release_driver+0xd/0x10
[   24.301587]  unbind_store+0x108/0x150
[   24.301993]  drv_attr_store+0x20/0x30
[   24.302402]  sysfs_kf_write+0x32/0x40
[   24.302827]  kernfs_fop_write+0x108/0x190
[   24.303269]  __vfs_write+0x23/0x120
[   24.303678]  ? security_file_permission+0x36/0xb0
[   24.304193]  ? rw_verify_area+0x49/0xb0
[   24.304636]  vfs_write+0xb0/0x190
[   24.305004]  SyS_write+0x41/0xa0
[   24.305362]  entry_SYSCALL_64_fastpath+0x1a/0xa9
[   24.305887] RIP: 0033:0x7f30e31d9620
[   24.306285] RSP: 002b:00007ffc54b47e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.307128] RAX: ffffffffffffffda RBX: 00007f30e3497600 RCX: 00007f30e31d9620
[   24.307928] RDX: 000000000000000d RSI: 0000000000da2008 RDI: 0000000000000001
[   24.308727] RBP: 000000000070bc60 R08: 00007f30e3498760 R09: 00007f30e3acbb40
[   24.309504] R10: 0000000000000073 R11: 0000000000000246 R12: 0000000000000001
[   24.310295] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffc54b47f34
[   24.311095] Code: 0e 01 e9 7b fe ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00
55 48 89 e5 53 48 89 fb e8 83 e8 ff ff 65 48 8b 14 25 40 c4 00 00 31 c0 <3e>
48 0f b1 13 48 85 c0 74 08 48 89 df e8 66 fd ff ff 5b 5d c3
[   24.313182] RIP: mutex_lock+0x18/0x30 RSP: ffffc90001b5bcb0
[   24.313811] CR2: 00000000000002e0
[   24.314208] ---[ end trace 29669c1593cae14b ]---

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227203330.18542-1-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22 09:23:19 +01:00
Linux Build Service Account
fc187e817f Merge "drm/msm/sde: store mdss irq status in case of irq storm" 2018-03-19 03:35:38 -07:00
Linux Build Service Account
0cf11fbe38 Merge "drm/msm/sde: take irq callback lock before reading cb list" 2018-03-19 03:35:36 -07:00
Linux Build Service Account
af36d13ab9 Merge "drm: smmu: fix smmu map failure" 2018-03-19 03:35:35 -07:00
Camus Wong
a4d84e9fa8 drm/msm: refine hdmi bridge implementation
This change fixes an unclocked hdmi register access while going
to suspend state.

When splash is enabled on HDMI interface & we are going to turn
on the hdmi bridge power. Context of sde_hdmi connector is found
to be NULL because connector was not initialized yet and we never
called sde_hdmi_core_enable which enables hpd clocks.

Now when going to suspend system would be calling clock unprepare
for clocks which were never enabled. Hence hdmi clock gets unbalanced
and resulted in unclocked access to one of the hdmi register during
disabling vblank.

Adding struct sde_hdmi as a member of struct sde_hdmi_bridge and remove
dependency on sde connector to get the hdmi display object.

Change-Id: If96324fd5152ab0e721dfd38e93a68321a615455
Signed-off-by: Camus Wong <camusw@codeaurora.org>
Signed-off-by: Rahul Sharma <rahsha@codeaurora.org>
Signed-off-by: Suprith Malligere Shankaregowda <supgow@codeaurora.org>
2018-03-19 10:33:30 +05:30
Greg Kroah-Hartman
230683f5da This is the 4.4.122 stable release
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Merge 4.4.122 into android-4.4

Changes in 4.4.122
	RDMA/ucma: Limit possible option size
	RDMA/ucma: Check that user doesn't overflow QP state
	RDMA/mlx5: Fix integer overflow while resizing CQ
	scsi: qla2xxx: Fix NULL pointer crash due to active timer for ABTS
	workqueue: Allow retrieval of current task's work struct
	drm: Allow determining if current task is output poll worker
	drm/nouveau: Fix deadlock on runtime suspend
	drm/radeon: Fix deadlock on runtime suspend
	drm/amdgpu: Fix deadlock on runtime suspend
	drm/amdgpu: Notify sbios device ready before send request
	drm/radeon: fix KV harvesting
	drm/amdgpu: fix KV harvesting
	MIPS: BMIPS: Do not mask IPIs during suspend
	MIPS: ath25: Check for kzalloc allocation failure
	MIPS: OCTEON: irq: Check for null return on kzalloc allocation
	Input: matrix_keypad - fix race when disabling interrupts
	loop: Fix lost writes caused by missing flag
	kbuild: Handle builtin dtb file names containing hyphens
	bcache: don't attach backing with duplicate UUID
	x86/MCE: Serialize sysfs changes
	ALSA: hda/realtek - Fix dock line-out volume on Dell Precision 7520
	ALSA: seq: Don't allow resizing pool in use
	ALSA: seq: More protection for concurrent write and ioctl races
	ALSA: hda: add dock and led support for HP EliteBook 820 G3
	ALSA: hda: add dock and led support for HP ProBook 640 G2
	nospec: Include <asm/barrier.h> dependency
	watchdog: hpwdt: SMBIOS check
	watchdog: hpwdt: Check source of NMI
	watchdog: hpwdt: fix unused variable warning
	netfilter: nfnetlink_queue: fix timestamp attribute
	ARM: omap2: hide omap3_save_secure_ram on non-OMAP3 builds
	Input: tca8418_keypad - remove double read of key event register
	tc358743: fix register i2c_rd/wr function fix
	netfilter: add back stackpointer size checks
	netfilter: x_tables: fix missing timer initialization in xt_LED
	netfilter: nat: cope with negative port range
	netfilter: IDLETIMER: be syzkaller friendly
	netfilter: ebtables: CONFIG_COMPAT: don't trust userland offsets
	netfilter: bridge: ebt_among: add missing match size checks
	netfilter: ipv6: fix use-after-free Write in nf_nat_ipv6_manip_pkt
	netfilter: use skb_to_full_sk in ip_route_me_harder
	netfilter: x_tables: pass xt_counters struct instead of packet counter
	netfilter: x_tables: pass xt_counters struct to counter allocator
	netfilter: x_tables: pack percpu counter allocations
	ext4: inplace xattr block update fails to deduplicate blocks
	ubi: Fix race condition between ubi volume creation and udev
	scsi: qla2xxx: Replace fcport alloc with qla2x00_alloc_fcport
	NFS: Fix an incorrect type in struct nfs_direct_req
	Revert "ARM: dts: LogicPD Torpedo: Fix I2C1 pinmux"
	x86/module: Detect and skip invalid relocations
	x86: Treat R_X86_64_PLT32 as R_X86_64_PC32
	serial: sh-sci: prevent lockup on full TTY buffers
	tty/serial: atmel: add new version check for usart
	uas: fix comparison for error code
	staging: comedi: fix comedi_nsamples_left.
	staging: android: ashmem: Fix lockdep issue during llseek
	USB: storage: Add JMicron bridge 152d:2567 to unusual_devs.h
	usb: quirks: add control message delay for 1b1c:1b20
	USB: usbmon: remove assignment from IS_ERR argument
	usb: usbmon: Read text within supplied buffer size
	usb: gadget: f_fs: Fix use-after-free in ffs_fs_kill_sb()
	serial: 8250_pci: Add Brainboxes UC-260 4 port serial device
	fixup: sctp: verify size of a new chunk in _sctp_make_chunk()
	Linux 4.4.122

Change-Id: I0946c4a7c59be33f18bed6498c3cdb748e82bbaf
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2018-03-18 12:01:19 +01:00
Alex Deucher
212dcfed28 drm/amdgpu: fix KV harvesting
commit 545b0bcde7fbd3ee408fa842ea0731451dc4bd0a upstream.

Always set the graphics values to the max for the
asic type.  E.g., some 1 RB chips are actually 1 RB chips,
others are actually harvested 2 RB chips.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=99353
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-18 11:17:49 +01:00
Alex Deucher
be1c6fff24 drm/radeon: fix KV harvesting
commit 0b58d90f89545e021d188c289fa142e5ff9e708b upstream.

Always set the graphics values to the max for the
asic type.  E.g., some 1 RB chips are actually 1 RB chips,
others are actually harvested 2 RB chips.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=99353
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-18 11:17:49 +01:00
Rex Zhu
58f85220ba drm/amdgpu: Notify sbios device ready before send request
commit 1bced75f4ab04bec55aecb57d99435dc6d0ae5a0 upstream.

it is required if a platform supports PCIe root complex
core voltage reduction. After receiving this notification,
SBIOS can apply default PCIe root complex power policy.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-18 11:17:49 +01:00
Lukas Wunner
690a151af1 drm/amdgpu: Fix deadlock on runtime suspend
commit aa0aad57909eb321746325951d66af88a83bc956 upstream.

amdgpu's ->runtime_suspend hook calls drm_kms_helper_poll_disable(),
which waits for the output poll worker to finish if it's running.

The output poll worker meanwhile calls pm_runtime_get_sync() in
amdgpu's ->detect hooks, which waits for the ongoing suspend to finish,
causing a deadlock.

Fix by not acquiring a runtime PM ref if the ->detect hooks are called
in the output poll worker's context.  This is safe because the poll
worker is only enabled while runtime active and we know that
->runtime_suspend waits for it to finish.

Fixes: d38ceaf99e ("drm/amdgpu: add core driver (v4)")
Cc: stable@vger.kernel.org # v4.2+: 27d4ee03078a: workqueue: Allow retrieval of current task's work struct
Cc: stable@vger.kernel.org # v4.2+: 25c058ccaf2e: drm: Allow determining if current task is output poll worker
Cc: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://patchwork.freedesktop.org/patch/msgid/4c9bf72aacae1eef062bd134cd112e0770a7f121.1518338789.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-18 11:17:48 +01:00
Lukas Wunner
40539a866f drm/radeon: Fix deadlock on runtime suspend
commit 15734feff2bdac24aa3266c437cffa42851990e3 upstream.

radeon's ->runtime_suspend hook calls drm_kms_helper_poll_disable(),
which waits for the output poll worker to finish if it's running.

The output poll worker meanwhile calls pm_runtime_get_sync() in
radeon's ->detect hooks, which waits for the ongoing suspend to finish,
causing a deadlock.

Fix by not acquiring a runtime PM ref if the ->detect hooks are called
in the output poll worker's context.  This is safe because the poll
worker is only enabled while runtime active and we know that
->runtime_suspend waits for it to finish.

Stack trace for posterity:

  INFO: task kworker/0:3:31847 blocked for more than 120 seconds
  Workqueue: events output_poll_execute [drm_kms_helper]
  Call Trace:
   schedule+0x3c/0x90
   rpm_resume+0x1e2/0x690
   __pm_runtime_resume+0x3f/0x60
   radeon_lvds_detect+0x39/0xf0 [radeon]
   output_poll_execute+0xda/0x1e0 [drm_kms_helper]
   process_one_work+0x14b/0x440
   worker_thread+0x48/0x4a0

  INFO: task kworker/2:0:10493 blocked for more than 120 seconds.
  Workqueue: pm pm_runtime_work
  Call Trace:
   schedule+0x3c/0x90
   schedule_timeout+0x1b3/0x240
   wait_for_common+0xc2/0x180
   wait_for_completion+0x1d/0x20
   flush_work+0xfc/0x1a0
   __cancel_work_timer+0xa5/0x1d0
   cancel_delayed_work_sync+0x13/0x20
   drm_kms_helper_poll_disable+0x1f/0x30 [drm_kms_helper]
   radeon_pmops_runtime_suspend+0x3d/0xa0 [radeon]
   pci_pm_runtime_suspend+0x61/0x1a0
   vga_switcheroo_runtime_suspend+0x21/0x70
   __rpm_callback+0x32/0x70
   rpm_callback+0x24/0x80
   rpm_suspend+0x12b/0x640
   pm_runtime_work+0x6f/0xb0
   process_one_work+0x14b/0x440
   worker_thread+0x48/0x4a0

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94147
Fixes: 10ebc0bc09 ("drm/radeon: add runtime PM support (v2)")
Cc: stable@vger.kernel.org # v3.13+: 27d4ee03078a: workqueue: Allow retrieval of current task's work struct
Cc: stable@vger.kernel.org # v3.13+: 25c058ccaf2e: drm: Allow determining if current task is output poll worker
Cc: Ismo Toijala <ismo.toijala@gmail.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://patchwork.freedesktop.org/patch/msgid/64ea02c44f91dda19bc563902b97bbc699040392.1518338789.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-18 11:17:48 +01:00
Lukas Wunner
cff2a8c5f9 drm/nouveau: Fix deadlock on runtime suspend
commit d61a5c1063515e855bedb1b81e20e50b0ac3541e upstream.

nouveau's ->runtime_suspend hook calls drm_kms_helper_poll_disable(),
which waits for the output poll worker to finish if it's running.

The output poll worker meanwhile calls pm_runtime_get_sync() in
nouveau_connector_detect() which waits for the ongoing suspend to finish,
causing a deadlock.

Fix by not acquiring a runtime PM ref if nouveau_connector_detect() is
called in the output poll worker's context.  This is safe because
the poll worker is only enabled while runtime active and we know that
->runtime_suspend waits for it to finish.

Other contexts calling nouveau_connector_detect() do require a runtime
PM ref, these comprise:

  status_store() drm sysfs interface
  ->fill_modes drm callback
  drm_fb_helper_probe_connector_modes()
  drm_mode_getconnector()
  nouveau_connector_hotplug()
  nouveau_display_hpd_work()
  nv17_tv_set_property()

Stack trace for posterity:

  INFO: task kworker/0:1:58 blocked for more than 120 seconds.
  Workqueue: events output_poll_execute [drm_kms_helper]
  Call Trace:
   schedule+0x28/0x80
   rpm_resume+0x107/0x6e0
   __pm_runtime_resume+0x47/0x70
   nouveau_connector_detect+0x7e/0x4a0 [nouveau]
   nouveau_connector_detect_lvds+0x132/0x180 [nouveau]
   drm_helper_probe_detect_ctx+0x85/0xd0 [drm_kms_helper]
   output_poll_execute+0x11e/0x1c0 [drm_kms_helper]
   process_one_work+0x184/0x380
   worker_thread+0x2e/0x390

  INFO: task kworker/0:2:252 blocked for more than 120 seconds.
  Workqueue: pm pm_runtime_work
  Call Trace:
   schedule+0x28/0x80
   schedule_timeout+0x1e3/0x370
   wait_for_completion+0x123/0x190
   flush_work+0x142/0x1c0
   nouveau_pmops_runtime_suspend+0x7e/0xd0 [nouveau]
   pci_pm_runtime_suspend+0x5c/0x180
   vga_switcheroo_runtime_suspend+0x1e/0xa0
   __rpm_callback+0xc1/0x200
   rpm_callback+0x1f/0x70
   rpm_suspend+0x13c/0x640
   pm_runtime_work+0x6e/0x90
   process_one_work+0x184/0x380
   worker_thread+0x2e/0x390

Bugzilla: https://bugs.archlinux.org/task/53497
Bugzilla: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=870523
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=70388#c33
Fixes: 5addcf0a5f ("nouveau: add runtime PM support (v0.9)")
Cc: stable@vger.kernel.org # v3.12+: 27d4ee03078a: workqueue: Allow retrieval of current task's work struct
Cc: stable@vger.kernel.org # v3.12+: 25c058ccaf2e: drm: Allow determining if current task is output poll worker
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://patchwork.freedesktop.org/patch/msgid/b7d2cbb609a80f59ccabfdf479b9d5907c603ea1.1518338789.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-18 11:17:48 +01:00
Lukas Wunner
1112c0a386 drm: Allow determining if current task is output poll worker
commit 25c058ccaf2ebbc3e250ec1e199e161f91fe27d4 upstream.

Introduce a helper to determine if the current task is an output poll
worker.

This allows us to fix a long-standing deadlock in several DRM drivers
wherein the ->runtime_suspend callback waits for the output poll worker
to finish and the worker in turn calls a ->detect callback which waits
for runtime suspend to finish.  The ->detect callback is invoked from
multiple call sites and waiting for runtime suspend to finish is the
correct thing to do except if it's executing in the context of the
worker.

v2: Expand kerneldoc to specifically mention deadlock between
    output poll worker and autosuspend worker as use case. (Lyude)

Cc: Dave Airlie <airlied@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://patchwork.freedesktop.org/patch/msgid/3549ce32e7f1467102e70d3e9cbf70c46bfe108e.1518593424.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-18 11:17:48 +01:00
Linux Build Service Account
6aaef91265 Merge "msm: kgsl: Add support for A509 GPU" 2018-03-17 03:13:18 -07:00
Lloyd Atkinson
c9b913882d drm/msm/sde: store mdss irq status in case of irq storm
Store the last MDSS IRQ status value to help identify the source
of any erroneous IRQs that might cause an IRQ storm. Also, check
return codes on IRQ mapping or handling and report any unhandled
IRQs to the IRQ system.

Change-Id: I585c97c01736216556eb389bda79548c1fda2b64
Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org>
2018-03-16 17:26:58 -07:00
Lloyd Atkinson
3c6964a08c drm/msm/sde: take irq callback lock before reading cb list
Take the callback spinlock before checking whether the callback
table list is empty. This resolves a race condition where the
callback list could be empty during the servicing of an
interrupt.

Change-Id: I8d59c0211526173ce98c8ca2dac36ec4743dc8f8
Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org>
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>
2018-03-16 17:26:21 -07:00
Lakshmi Narayana Kalavala
1f9861ad38 drm/msm: limit sde_dbg_dump output to current entries
Update the sde_dbg_dump function to only dump event log
entries up to the time the dump is initiated, and increase
the number of recorded event log entries.

This places a limit on the total number of entries that are
output to the dmesg log even if more entries would have been
added while the dump is executing (e.g., interrupt events),
while still allowing the extra events to be recorded properly.

Change-Id: I66f850d21a2d0217f9049facffce074831b7e17d
Signed-off-by: Clarence Ip <cip@codeaurora.org>
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>
2018-03-16 17:25:34 -07:00
Lakshmi Narayana Kalavala
89ddcc12a1 drm/msm: add input sanitization on debug dump debugfs
Add checks to debugfs input parameters in sde debug dump debugfs
entries.

Change-Id: Iea170b75c1eb9aa46366662d36e677cb3251830b
Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org>
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>
2018-03-16 17:24:54 -07:00
Lakshmi Narayana Kalavala
ac94b019c3 drm/msm/sde: add debugfs nodes for underruns debug
This change adds debugfs nodes for debugging underruns,
after this change following commands are supported:
1. To enable the underrun ftrace:
	echo 1 > /d/tracing/events/sde/sde_encoder_underrun/enable
2. To enable feature that disables the ftraces once the
	underrun happens:
	echo 1 > /d/dri/0/debug/dbg_ctrl
3. To enable the panic in the device when underrun happens:
	echo 2 > /d/dri/0/debug/dbg_ctrl
4. To enable both of the above options:
	echo 3 > /d/dri/0/debug/dbg_ctrl

Change-Id: Id9f407edb0908a5f8454f08d63c356dc8f04d353
Signed-off-by: Ingrid Gallardo <ingridg@codeaurora.org>
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>
2018-03-16 17:23:52 -07:00
Linux Build Service Account
a915fa29fa Merge "drm/msm/sde: add validation checks for source split" 2018-03-16 01:55:52 -07:00