14 Jan, 2021
5 commits
-
In order to debug critical domain and device power issues, it may be
necessary to disallow certain idle states at runtime. Enable a vendor
hook to check if a domain idle state is allowed for powering down the
domain.Bug: 175718935
Signed-off-by: Lina Iyer
Change-Id: I403c0c7d272439fb338bbf54a346861559385047 -
IOMMU_SYS_CACHE_ONLY_NWA allows buffers for non-coherent devices
to be mapped with the correct memory attributes so that the buffers
can be cached in the system cache, with a no write allocate cache policy.
However, this property is only usable by drivers that invoke the
IOMMU API directly; it is not usable by drivers that use the DMA API.Thus, introduce DMA_ATTR_SYS_CACHE_ONLY_NWA, so that drivers for
non-coherent devices that use the DMA API can use it to specify if
they want a buffer to be cached in the system cache.Bug: 176778547
Change-Id: Ic812a1fb144a58deb4279c2bf121fc6cc4c3b208
Signed-off-by: Isaac J. Manjarres -
IOMMU_SYS_CACHE_ONLY allows buffers for non-coherent devices
to be mapped with the correct memory attributes so that the buffers
can be cached in the system cache. However, this property
is only usable by drivers that invoke the IOMMU API directly;
it is not usable by drivers that use the DMA API.Thus, introduce DMA_ATTR_SYS_CACHE_ONLY, so that drivers for
non-coherent devices that use the DMA API can use it to specify if
they want a buffer to be cached in the system cache.Bug: 176778547
Change-Id: I849d7a3f36b689afd2f6ee400507223fd6395158
Signed-off-by: Isaac J. Manjarres -
Non-coherent devices on systems that support a system or
last level cache may want to request that allocations be
cached in the system cache. For memory that is allocated
by the kernel, and used for DMA with devices, the memory
attributes used for CPU access should match the memory
attributes that will be used for device access.The memory attributes that need to be programmed into
the MAIR for system cache usage are:0xf4 - Normal memory, outer write back read/write allocate,
inner non-cacheable.There is currently no support for this memory attribute for
CPU mappings, so add it.Bug: 176778547
Change-Id: I3abc7becd408f20ac5499cbbe3c6c6f53f784107
Signed-off-by: Isaac J. Manjarres -
Add following vendor hooks in ftrace oops path to allow
vendor modules to get ftrace buffer data.1) android_vh_ftrace_oops_enter
2) android_vh_ftrace_size_check
3) android_vh_ftrace_format_check
4) android_vh_ftrace_dump_buffer
5) android_vh_ftrace_oops_exitFtrace dump on oops can be controlled with kernel command
line parameter ftrace_dump_on_oops.Bug: 177387994
Change-Id: I898026bfc3e5c5c5ab1eaa0e86a019a6a720408e
Signed-off-by: Prateek Sood
Signed-off-by: Mukesh Ojha
13 Jan, 2021
14 commits
-
Changes in 5.10.7
i40e: Fix Error I40E_AQ_RC_EINVAL when removing VFs
iavf: fix double-release of rtnl_lock
net/sched: sch_taprio: ensure to reset/destroy all child qdiscs
net: mvpp2: Add TCAM entry to drop flow control pause frames
net: mvpp2: prs: fix PPPoE with ipv6 packet parse
net: systemport: set dev->max_mtu to UMAC_MAX_MTU_SIZE
ethernet: ucc_geth: fix use-after-free in ucc_geth_remove()
ethernet: ucc_geth: set dev->max_mtu to 1518
ionic: account for vlan tag len in rx buffer len
atm: idt77252: call pci_disable_device() on error path
net: mvpp2: Fix GoP port 3 Networking Complex Control configurations
net: stmmac: dwmac-meson8b: ignore the second clock input
ibmvnic: fix login buffer memory leak
ibmvnic: continue fatal error reset after passive init
net: ethernet: mvneta: Fix error handling in mvneta_probe
qede: fix offload for IPIP tunnel packets
virtio_net: Fix recursive call to cpus_read_lock()
net/ncsi: Use real net-device for response handler
net: ethernet: Fix memleak in ethoc_probe
net-sysfs: take the rtnl lock when storing xps_cpus
net-sysfs: take the rtnl lock when accessing xps_cpus_map and num_tc
net-sysfs: take the rtnl lock when storing xps_rxqs
net-sysfs: take the rtnl lock when accessing xps_rxqs_map and num_tc
net: ethernet: ti: cpts: fix ethtool output when no ptp_clock registered
tun: fix return value when the number of iovs exceeds MAX_SKB_FRAGS
e1000e: Only run S0ix flows if shutdown succeeded
e1000e: bump up timeout to wait when ME un-configures ULP mode
Revert "e1000e: disable s0ix entry and exit flows for ME systems"
e1000e: Export S0ix flags to ethtool
bnxt_en: Check TQM rings for maximum supported value.
net: mvpp2: fix pkt coalescing int-threshold configuration
bnxt_en: Fix AER recovery.
ipv4: Ignore ECN bits for fib lookups in fib_compute_spec_dst()
net: sched: prevent invalid Scell_log shift count
net: hns: fix return value check in __lb_other_process()
erspan: fix version 1 check in gre_parse_header()
net: hdlc_ppp: Fix issues when mod_timer is called while timer is running
bareudp: set NETIF_F_LLTX flag
bareudp: Fix use of incorrect min_headroom size
vhost_net: fix ubuf refcount incorrectly when sendmsg fails
r8169: work around power-saving bug on some chip versions
net: dsa: lantiq_gswip: Enable GSWIP_MII_CFG_EN also for internal PHYs
net: dsa: lantiq_gswip: Fix GSWIP_MII_CFG(p) register access
CDC-NCM: remove "connected" log message
ibmvnic: fix: NULL pointer dereference.
net: usb: qmi_wwan: add Quectel EM160R-GL
selftests: mlxsw: Set headroom size of correct port
stmmac: intel: Add PCI IDs for TGL-H platform
selftests/vm: fix building protection keys test
block: add debugfs stanza for QUEUE_FLAG_NOWAIT
workqueue: Kick a worker based on the actual activation of delayed works
scsi: ufs: Fix wrong print message in dev_err()
scsi: ufs-pci: Fix restore from S4 for Intel controllers
scsi: ufs-pci: Ensure UFS device is in PowerDown mode for suspend-to-disk ->poweroff()
scsi: ufs-pci: Fix recovery from hibernate exit errors for Intel controllers
scsi: ufs-pci: Enable UFSHCD_CAP_RPM_AUTOSUSPEND for Intel controllers
scsi: block: Introduce BLK_MQ_REQ_PM
scsi: ide: Do not set the RQF_PREEMPT flag for sense requests
scsi: ide: Mark power management requests with RQF_PM instead of RQF_PREEMPT
scsi: scsi_transport_spi: Set RQF_PM for domain validation commands
scsi: core: Only process PM requests if rpm_status != RPM_ACTIVE
local64.h: make mandatory
lib/genalloc: fix the overflow when size is too big
depmod: handle the case of /sbin/depmod without /sbin in PATH
scsi: ufs: Clear UAC for FFU and RPMB LUNs
kbuild: don't hardcode depmod path
Bluetooth: revert: hci_h5: close serdev device and free hu in h5_close
scsi: block: Remove RQF_PREEMPT and BLK_MQ_REQ_PREEMPT
scsi: block: Do not accept any requests while suspended
crypto: ecdh - avoid buffer overflow in ecdh_set_secret()
crypto: asym_tpm: correct zero out potential secrets
powerpc: Handle .text.{hot,unlikely}.* in linker script
Staging: comedi: Return -EFAULT if copy_to_user() fails
staging: mt7621-dma: Fix a resource leak in an error handling path
usb: gadget: enable super speed plus
USB: cdc-acm: blacklist another IR Droid device
USB: cdc-wdm: Fix use after free in service_outstanding_interrupt().
usb: typec: intel_pmc_mux: Configure HPD first for HPD+IRQ request
usb: dwc3: meson-g12a: disable clk on error handling path in probe
usb: dwc3: gadget: Restart DWC3 gadget when enabling pullup
usb: dwc3: gadget: Clear wait flag on dequeue
usb: dwc3: ulpi: Use VStsDone to detect PHY regs access completion
usb: dwc3: ulpi: Replace CPU-based busyloop with Protocol-based one
usb: dwc3: ulpi: Fix USB2.0 HS/FS/LS PHY suspend regression
usb: chipidea: ci_hdrc_imx: add missing put_device() call in usbmisc_get_init_data()
USB: xhci: fix U1/U2 handling for hardware with XHCI_INTEL_HOST quirk set
usb: usbip: vhci_hcd: protect shift size
usb: uas: Add PNY USB Portable SSD to unusual_uas
USB: serial: iuu_phoenix: fix DMA from stack
USB: serial: option: add LongSung M5710 module support
USB: serial: option: add Quectel EM160R-GL
USB: yurex: fix control-URB timeout handling
USB: usblp: fix DMA to stack
ALSA: usb-audio: Fix UBSAN warnings for MIDI jacks
usb: gadget: select CONFIG_CRC32
USB: Gadget: dummy-hcd: Fix shift-out-of-bounds bug
usb: gadget: f_uac2: reset wMaxPacketSize
usb: gadget: function: printer: Fix a memory leak for interface descriptor
usb: gadget: u_ether: Fix MTU size mismatch with RX packet size
USB: gadget: legacy: fix return error code in acm_ms_bind()
usb: gadget: Fix spinlock lockup on usb_function_deactivate
usb: gadget: configfs: Preserve function ordering after bind failure
usb: gadget: configfs: Fix use-after-free issue with udc_name
USB: serial: keyspan_pda: remove unused variable
hwmon: (amd_energy) fix allocation of hwmon_channel_info config
mm: make wait_on_page_writeback() wait for multiple pending writebacks
x86/mm: Fix leak of pmd ptlock
KVM: x86/mmu: Use -1 to flag an undefined spte in get_mmio_spte()
KVM: x86/mmu: Get root level from walkers when retrieving MMIO SPTE
kvm: check tlbs_dirty directly
KVM: x86/mmu: Ensure TDP MMU roots are freed after yield
x86/resctrl: Use an IPI instead of task_work_add() to update PQR_ASSOC MSR
x86/resctrl: Don't move a task to the same resource group
blk-iocost: fix NULL iocg deref from racing against initialization
ALSA: hda/via: Fix runtime PM for Clevo W35xSS
ALSA: hda/conexant: add a new hda codec CX11970
ALSA: hda/realtek - Fix speaker volume control on Lenovo C940
ALSA: hda/realtek: Add mute LED quirk for more HP laptops
ALSA: hda/realtek: Enable mute and micmute LED on HP EliteBook 850 G7
ALSA: hda/realtek: Add two "Intel Reference board" SSID in the ALC256.
iommu/vt-d: Move intel_iommu info from struct intel_svm to struct intel_svm_dev
btrfs: qgroup: don't try to wait flushing if we're already holding a transaction
btrfs: send: fix wrong file path when there is an inode with a pending rmdir
Revert "device property: Keep secondary firmware node secondary by type"
dmabuf: fix use-after-free of dmabuf's file->f_inode
arm64: link with -z norelro for LLD or aarch64-elf
drm/i915: clear the shadow batch
drm/i915: clear the gpu reloc batch
bcache: fix typo from SUUP to SUPP in features.h
bcache: check unsupported feature sets for bcache register
bcache: introduce BCH_FEATURE_INCOMPAT_LOG_LARGE_BUCKET_SIZE for large bucket
net/mlx5e: Fix SWP offsets when vlan inserted by driver
ARM: dts: OMAP3: disable AES on N950/N9
netfilter: x_tables: Update remaining dereference to RCU
netfilter: ipset: fix shift-out-of-bounds in htable_bits()
netfilter: xt_RATEEST: reject non-null terminated string from userspace
netfilter: nft_dynset: report EOPNOTSUPP on missing set feature
dmaengine: idxd: off by one in cleanup code
x86/mtrr: Correct the range check before performing MTRR type lookups
KVM: x86: fix shift out of bounds reported by UBSAN
xsk: Fix memory leak for failed bind
rtlwifi: rise completion at the last step of firmware callback
scsi: target: Fix XCOPY NAA identifier lookup
Linux 5.10.7Signed-off-by: Greg Kroah-Hartman
Change-Id: I1a7c195af35831fe362b027fe013c0c7e4dc20ea -
Changes in 5.10.6
Revert "drm/amd/display: Fix memory leaks in S3 resume"
Revert "mtd: spinand: Fix OOB read"
rtc: pcf2127: move watchdog initialisation to a separate function
rtc: pcf2127: only use watchdog when explicitly available
dt-bindings: rtc: add reset-source property
kdev_t: always inline major/minor helper functions
Bluetooth: Fix attempting to set RPA timeout when unsupported
ALSA: hda/realtek - Modify Dell platform name
ALSA: hda/hdmi: Fix incorrect mutex unlock in silent_stream_disable()
drm/i915/tgl: Fix Combo PHY DPLL fractional divider for 38.4MHz ref clock
scsi: ufs: Allow an error return value from ->device_reset()
scsi: ufs: Re-enable WriteBooster after device reset
RDMA/core: remove use of dma_virt_ops
RDMA/siw,rxe: Make emulated devices virtual in the device tree
fuse: fix bad inode
perf: Break deadlock involving exec_update_mutex
rwsem: Implement down_read_killable_nested
rwsem: Implement down_read_interruptible
exec: Transform exec_update_mutex into a rw_semaphore
mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start
Linux 5.10.6Signed-off-by: Greg Kroah-Hartman
Change-Id: Id4c57a151a1e8f2162163d2337b6055f04edbe9b -
Fix an issue for non-GKI builds found by the 0-day test bot:
kernel/sched/fair.c: In function 'select_task_rq_fair':
>> kernel/sched/fair.c:6766:6: error: implicit declaration of function
'trace_android_rvh_select_task_rq_fair_enabled';
did you mean 'trace_android_rvh_select_task_rq_fair'?
6766 | if (trace_android_rvh_select_task_rq_fair_enabled())
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| trace_android_rvh_select_task_rq_fair
cc1: some warnings being treated as errorsReported-by: kernel test robot
Fixes: c7ba09ce6aa5 ("ANDROID: sched/fair: Sync task util for strf hook")
Signed-off-by: Todd Kjos
Change-Id: I1b15b9ada83dc5b2678cef3910a7aedc0d19f174 -
Since the sugov traces were added in kernel/sched/cpufreq_schedutil.c,
move it from power.h to sched.h.
And move the tracepoint to where the change happens.Bug: 174488007
Test: build pass and boot to home
Signed-off-by: Jimmy Shiu
Change-Id: Ibe18f04773c28be84db3619b1a4253bf08f0e289
Signed-off-by: Will McVicker -
There is currently support for non-coherent devices to use the system
cache for their buffers by mapping the buffer with the IOMMU_SYS_CACHE_ONLY
protection flag. The IOMMU_SYS_CACHE_ONLY_FLAG maps the buffers with
a RW-allocate cache policy by default.There are usecases that do not benefit from having a RW allocate policy,
but instead benefit from a no write allocate (NWA) policy, while using
the system cache.Thus, add support for mapping memory with the attributes required
for it to be cached in the system cached, with a NWA policy:MAIR: 0xe4: inner non-cacheable, outer write-back read allocate.
Bug: 176778547
Change-Id: I6d2700a19f0f2e61905b3d36b15f60db3ae59b73
Signed-off-by: Isaac J. Manjarres -
commit b16671e8f493e3df40b1fb0dff4078f391c5099a upstream.
When large bucket feature was added, BCH_FEATURE_INCOMPAT_LARGE_BUCKET
was introduced into the incompat feature set. It used bucket_size_hi
(which was added at the tail of struct cache_sb_disk) to extend current
16bit bucket size to 32bit with existing bucket_size in struct
cache_sb_disk.This is not a good idea, there are two obvious problems,
- Bucket size is always value power of 2, if store log2(bucket size) in
existing bucket_size of struct cache_sb_disk, it is unnecessary to add
bucket_size_hi.
- Macro csum_set() assumes d[SB_JOURNAL_BUCKETS] is the last member in
struct cache_sb_disk, bucket_size_hi was added after d[] which makes
csum_set calculate an unexpected super block checksum.To fix the above problems, this patch introduces a new incompat feature
bit BCH_FEATURE_INCOMPAT_LOG_LARGE_BUCKET_SIZE, when this bit is set, it
means bucket_size in struct cache_sb_disk stores the order of power-of-2
bucket size value. When user specifies a bucket size larger than 32768
sectors, BCH_FEATURE_INCOMPAT_LOG_LARGE_BUCKET_SIZE will be set to
incompat feature set, and bucket_size stores log2(bucket size) more
than store the real bucket size value.The obsoleted BCH_FEATURE_INCOMPAT_LARGE_BUCKET won't be used anymore,
it is renamed to BCH_FEATURE_INCOMPAT_OBSO_LARGE_BUCKET and still only
recognized by kernel driver for legacy compatible purpose. The previous
bucket_size_hi is renmaed to obso_bucket_size_hi in struct cache_sb_disk
and not used in bcache-tools anymore.For cache device created with BCH_FEATURE_INCOMPAT_LARGE_BUCKET feature,
bcache-tools and kernel driver still recognize the feature string and
display it as "obso_large_bucket".With this change, the unnecessary extra space extend of bcache on-disk
super block can be avoided, and csum_set() may generate expected check
sum as well.Fixes: ffa470327572 ("bcache: add bucket_size_hi into struct cache_sb_disk for large bucket")
Signed-off-by: Coly Li
Cc: stable@vger.kernel.org # 5.9+
Signed-off-by: Jens Axboe
Signed-off-by: Greg Kroah-Hartman -
commit 9ad9f45b3b91162b33abfe175ae75ab65718dbf5 upstream.
'struct intel_svm' is shared by all devices bound to a give process,
but records only a single pointer to a 'struct intel_iommu'. Consequently,
cache invalidations may only be applied to a single DMAR unit, and are
erroneously skipped for the other devices.In preparation for fixing this, rework the structures so that the iommu
pointer resides in 'struct intel_svm_dev', allowing 'struct intel_svm'
to track them in its device list.Fixes: 1c4f88b7f1f9 ("iommu/vt-d: Shared virtual address in scalable mode")
Cc: Lu Baolu
Cc: Jacob Pan
Cc: Raj Ashok
Cc: David Woodhouse
Reported-by: Guo Kaijie
Reported-by: Xin Zeng
Signed-off-by: Guo Kaijie
Signed-off-by: Xin Zeng
Signed-off-by: Liu Yi L
Tested-by: Guo Kaijie
Cc: stable@vger.kernel.org # v5.0+
Acked-by: Lu Baolu
Link: https://lore.kernel.org/r/1609949037-25291-2-git-send-email-yi.l.liu@intel.com
Signed-off-by: Will Deacon
Signed-off-by: Greg Kroah-Hartman -
[ Upstream commit 52abca64fd9410ea6c9a3a74eab25663b403d7da ]
blk_queue_enter() accepts BLK_MQ_REQ_PM requests independent of the runtime
power management state. Now that SCSI domain validation no longer depends
on this behavior, modify the behavior of blk_queue_enter() as follows:- Do not accept any requests while suspended.
- Only process power management requests while suspending or resuming.
Submitting BLK_MQ_REQ_PM requests to a device that is runtime suspended
causes runtime-suspended devices not to resume as they should. The request
which should cause a runtime resume instead gets issued directly, without
resuming the device first. Of course the device can't handle it properly,
the I/O fails, and the device remains suspended.The problem is fixed by checking that the queue's runtime-PM status isn't
RPM_SUSPENDED before allowing a request to be issued, and queuing a
runtime-resume request if it is. In particular, the inline
blk_pm_request_resume() routine is renamed blk_pm_resume_queue() and the
code is unified by merging the surrounding checks into the routine. If the
queue isn't set up for runtime PM, or there currently is no restriction on
allowed requests, the request is allowed. Likewise if the BLK_MQ_REQ_PM
flag is set and the status isn't RPM_SUSPENDED. Otherwise a runtime resume
is queued and the request is blocked until conditions are more suitable.[ bvanassche: modified commit message and removed Cc: stable because
without the previous patches from this series this patch would break
parallel SCSI domain validation + introduced queue_rpm_status() ]Link: https://lore.kernel.org/r/20201209052951.16136-9-bvanassche@acm.org
Cc: Jens Axboe
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Can Guo
Cc: Stanley Chu
Cc: Ming Lei
Cc: Rafael J. Wysocki
Reported-and-tested-by: Martin Kepplinger
Reviewed-by: Hannes Reinecke
Reviewed-by: Can Guo
Signed-off-by: Alan Stern
Signed-off-by: Bart Van Assche
Signed-off-by: Martin K. Petersen
Signed-off-by: Sasha Levin -
[ Upstream commit a4d34da715e3cb7e0741fe603dcd511bed067e00 ]
Remove flag RQF_PREEMPT and BLK_MQ_REQ_PREEMPT since these are no longer
used by any kernel code.Link: https://lore.kernel.org/r/20201209052951.16136-8-bvanassche@acm.org
Cc: Can Guo
Cc: Stanley Chu
Cc: Alan Stern
Cc: Ming Lei
Cc: Rafael J. Wysocki
Cc: Martin Kepplinger
Reviewed-by: Christoph Hellwig
Reviewed-by: Hannes Reinecke
Reviewed-by: Jens Axboe
Reviewed-by: Can Guo
Signed-off-by: Bart Van Assche
Signed-off-by: Martin K. Petersen
Signed-off-by: Sasha Levin -
[ Upstream commit 87dbc209ea04645fd2351981f09eff5d23f8e2e9 ]
Make mandatory in include/asm-generic/Kbuild and
remove all arch/*/include/asm/local64.h arch-specific files since they
only #include .This fixes build errors on arch/c6x/ and arch/nios2/ for
block/blk-iocost.c.Build-tested on 21 of 25 arch-es. (tools problems on the others)
Yes, we could even rename to
and change all #includes to use
instead.Link: https://lkml.kernel.org/r/20201227024446.17018-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap
Suggested-by: Christoph Hellwig
Reviewed-by: Masahiro Yamada
Cc: Jens Axboe
Cc: Ley Foon Tan
Cc: Mark Salter
Cc: Aurelien Jacquiot
Cc: Peter Zijlstra
Cc: Arnd Bergmann
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Sasha Levin -
[ Upstream commit 0854bcdcdec26aecdc92c303816f349ee1fba2bc ]
Introduce the BLK_MQ_REQ_PM flag. This flag makes the request allocation
functions set RQF_PM. This is the first step towards removing
BLK_MQ_REQ_PREEMPT.Link: https://lore.kernel.org/r/20201209052951.16136-3-bvanassche@acm.org
Cc: Alan Stern
Cc: Stanley Chu
Cc: Ming Lei
Cc: Rafael J. Wysocki
Cc: Can Guo
Reviewed-by: Christoph Hellwig
Reviewed-by: Hannes Reinecke
Reviewed-by: Jens Axboe
Reviewed-by: Can Guo
Signed-off-by: Bart Van Assche
Signed-off-by: Martin K. Petersen
Signed-off-by: Sasha Levin -
[ Upstream commit bd1248f1ddbc48b0c30565fce897a3b6423313b8 ]
Check Scell_log shift size in red_check_params() and modify all callers
of red_check_params() to pass Scell_log.This prevents a shift out-of-bounds as detected by UBSAN:
UBSAN: shift-out-of-bounds in ./include/net/red.h:252:22
shift exponent 72 is too large for 32-bit type 'int'Fixes: 8afa10cbe281 ("net_sched: red: Avoid illegal values")
Signed-off-by: Randy Dunlap
Reported-by: syzbot+97c5bd9cc81eca63d36e@syzkaller.appspotmail.com
Cc: Nogah Frankel
Cc: Jamal Hadi Salim
Cc: Cong Wang
Cc: Jiri Pirko
Cc: netdev@vger.kernel.org
Cc: "David S. Miller"
Cc: Jakub Kicinski
Signed-off-by: David S. Miller
Signed-off-by: Greg Kroah-Hartman -
Memory hotplugging is allowed only for multiples of section sizes.
Section size could be huge (ex. 1GB for arm64 targets) thus limiting
to add/remove lower chunks of memory. This patch allows drivers to add
memory of subsection sizes which are then added to memblock. This does
not create a separate memblock device nodes for newly added subsections
until the whole of the memblock section is added.Bug: 170460867
Change-Id: I15749b5320340cba4d526e7ddb26a9cd6029c690
Signed-off-by: Sudarshan Rajagopalan -
There are out of tree drivers which need IOMMU_SYS_CACHE_ONLY
to be able to cache their data buffers in the system cache,
so restore it.Bug: 176778547
Change-Id: Ic632a6f5951f9917e6006088b065fdbaf4e1b374
Signed-off-by: Isaac J. Manjarres
12 Jan, 2021
3 commits
-
Add support for IOMMU drivers to have their own map_sg() callbacks.
This completes the path for having iommu_map_sg() invoke an IOMMU
driver's map_sg() callback, which can then invoke the io-pgtable
map_sg() callback with the entire scatter-gather list, so that it
can be processed entirely in the io-pgtable layer.For IOMMU drivers that do not provide a callback, the default
implementation of iterating through the scatter-gather list, while
calling iommu_map() will be used.Bug: 176779203
Link: https://lore.kernel.org/linux-iommu/1610376862-927-1-git-send-email-isaacm@codeaurora.org/T/#t
Change-Id: I3d5a8a9e8648649d8dcdda3fa1df41d72f87a528
Signed-off-by: Isaac J. Manjarres
Tested-by: Sai Prakash Ranjan -
While mapping a scatter-gather list, iommu_map_sg() calls
into the IOMMU driver through an indirect call, which can
call into the io-pgtable code through another indirect call.This sequence of going through the IOMMU core code, the IOMMU
driver, and finally the io-pgtable code, occurs for every
element in the scatter-gather list, in the worse case, which
is not optimal.Introduce a map_sg callback in the io-pgtable ops so that
IOMMU drivers can invoke it with the complete scatter-gather
list, so that it can be processed within the io-pgtable
code entirely, reducing the number of indirect calls, and
boosting overall iommu_map_sg() performance.Bug: 176779203
Link: https://lore.kernel.org/linux-iommu/1610376862-927-1-git-send-email-isaacm@codeaurora.org/T/#t
Change-Id: I4b2088dd08eb97dcd94a6c6968082a3c4395351a
Signed-off-by: Isaac J. Manjarres
Tested-by: Sai Prakash Ranjan -
Add register read/write operations tracing support.
ftrace events helps to trace register read and write
location details of memory mapped IO registers.
These trace logs helps to debug un clocked access
of peripherals.Bug: 169045115
Change-Id: I849bf75b84c24c8f3e9d2e8fba34a10ddcf4aaca
Signed-off-by: Prasad Sodagudi
10 Jan, 2021
1 commit
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Changes in 5.10.5
net/sched: sch_taprio: reset child qdiscs before freeing them
mptcp: fix security context on server socket
ethtool: fix error paths in ethnl_set_channels()
ethtool: fix string set id check
md/raid10: initialize r10_bio->read_slot before use.
drm/amd/display: Add get_dig_frontend implementation for DCEx
io_uring: close a small race gap for files cancel
jffs2: Allow setting rp_size to zero during remounting
jffs2: Fix NULL pointer dereference in rp_size fs option parsing
spi: dw-bt1: Fix undefined devm_mux_control_get symbol
opp: fix memory leak in _allocate_opp_table
opp: Call the missing clk_put() on error
scsi: block: Fix a race in the runtime power management code
mm/hugetlb: fix deadlock in hugetlb_cow error path
mm: memmap defer init doesn't work as expected
lib/zlib: fix inflating zlib streams on s390
io_uring: don't assume mm is constant across submits
io_uring: use bottom half safe lock for fixed file data
io_uring: add a helper for setting a ref node
io_uring: fix io_sqe_files_unregister() hangs
uapi: move constants from to
tools headers UAPI: Sync linux/const.h with the kernel headers
cgroup: Fix memory leak when parsing multiple source parameters
zlib: move EXPORT_SYMBOL() and MODULE_LICENSE() out of dfltcc_syms.c
scsi: cxgb4i: Fix TLS dependency
Bluetooth: hci_h5: close serdev device and free hu in h5_close
fbcon: Disable accelerated scrolling
reiserfs: add check for an invalid ih_entry_count
misc: vmw_vmci: fix kernel info-leak by initializing dbells in vmci_ctx_get_chkpt_doorbells()
media: gp8psk: initialize stats at power control logic
f2fs: fix shift-out-of-bounds in sanity_check_raw_super()
ALSA: seq: Use bool for snd_seq_queue internal flags
ALSA: rawmidi: Access runtime->avail always in spinlock
bfs: don't use WARNING: string when it's just info.
ext4: check for invalid block size early when mounting a file system
fcntl: Fix potential deadlock in send_sig{io, urg}()
io_uring: check kthread stopped flag when sq thread is unparked
rtc: sun6i: Fix memleak in sun6i_rtc_clk_init
module: set MODULE_STATE_GOING state when a module fails to load
quota: Don't overflow quota file offsets
rtc: pl031: fix resource leak in pl031_probe
powerpc: sysdev: add missing iounmap() on error in mpic_msgr_probe()
i3c master: fix missing destroy_workqueue() on error in i3c_master_register
NFSv4: Fix a pNFS layout related use-after-free race when freeing the inode
f2fs: avoid race condition for shrinker count
f2fs: fix race of pending_pages in decompression
module: delay kobject uevent until after module init call
powerpc/64: irq replay remove decrementer overflow check
fs/namespace.c: WARN if mnt_count has become negative
watchdog: rti-wdt: fix reference leak in rti_wdt_probe
um: random: Register random as hwrng-core device
um: ubd: Submit all data segments atomically
NFSv4.2: Don't error when exiting early on a READ_PLUS buffer overflow
ceph: fix inode refcount leak when ceph_fill_inode on non-I_NEW inode fails
drm/amd/display: updated wm table for Renoir
tick/sched: Remove bogus boot "safety" check
s390: always clear kernel stack backchain before calling functions
io_uring: remove racy overflow list fast checks
ALSA: pcm: Clear the full allocated memory at hw_params
dm verity: skip verity work if I/O error when system is shutting down
ext4: avoid s_mb_prefetch to be zero in individual scenarios
device-dax: Fix range release
Linux 5.10.5Signed-off-by: Greg Kroah-Hartman
Change-Id: I2b481bfac06bafdef2cf3cc1ac2c2a4ddf9913dc
09 Jan, 2021
7 commits
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[ Upstream commit f7cfd871ae0c5008d94b6f66834e7845caa93c15 ]
Recently syzbot reported[0] that there is a deadlock amongst the users
of exec_update_mutex. The problematic lock ordering found by lockdep
was:perf_event_open (exec_update_mutex -> ovl_i_mutex)
chown (ovl_i_mutex -> sb_writes)
sendfile (sb_writes -> p->lock)
by reading from a proc file and writing to overlayfs
proc_pid_syscall (p->lock -> exec_update_mutex)While looking at possible solutions it occured to me that all of the
users and possible users involved only wanted to state of the given
process to remain the same. They are all readers. The only writer is
exec.There is no reason for readers to block on each other. So fix
this deadlock by transforming exec_update_mutex into a rw_semaphore
named exec_update_lock that only exec takes for writing.Cc: Jann Horn
Cc: Vasiliy Kulikov
Cc: Al Viro
Cc: Bernd Edlinger
Cc: Oleg Nesterov
Cc: Christopher Yeoh
Cc: Cyrill Gorcunov
Cc: Sargun Dhillon
Cc: Christian Brauner
Cc: Arnd Bergmann
Cc: Peter Zijlstra
Cc: Ingo Molnar
Cc: Arnaldo Carvalho de Melo
Fixes: eea9673250db ("exec: Add exec_update_mutex to replace cred_guard_mutex")
[0] https://lkml.kernel.org/r/00000000000063640c05ade8e3de@google.com
Reported-by: syzbot+db9cdf3dd1f64252c6ef@syzkaller.appspotmail.com
Link: https://lkml.kernel.org/r/87ft4mbqen.fsf@x220.int.ebiederm.org
Signed-off-by: Eric W. Biederman
Signed-off-by: Sasha Levin -
[ Upstream commit 31784cff7ee073b34d6eddabb95e3be2880a425c ]
In preparation for converting exec_update_mutex to a rwsem so that
multiple readers can execute in parallel and not deadlock, add
down_read_interruptible. This is needed for perf_event_open to be
converted (with no semantic changes) from working on a mutex to
wroking on a rwsem.Signed-off-by: Eric W. Biederman
Signed-off-by: Peter Zijlstra (Intel)
Link: https://lkml.kernel.org/r/87k0tybqfy.fsf@x220.int.ebiederm.org
Signed-off-by: Sasha Levin -
[ Upstream commit 0f9368b5bf6db0c04afc5454b1be79022a681615 ]
In preparation for converting exec_update_mutex to a rwsem so that
multiple readers can execute in parallel and not deadlock, add
down_read_killable_nested. This is needed so that kcmp_lock
can be converted from working on a mutexes to working on rw_semaphores.Signed-off-by: Eric W. Biederman
Signed-off-by: Peter Zijlstra (Intel)
Link: https://lkml.kernel.org/r/87o8jabqh3.fsf@x220.int.ebiederm.org
Signed-off-by: Sasha Levin -
[ Upstream commit 5a7a9e038b032137ae9c45d5429f18a2ffdf7d42 ]
Use the ib_dma_* helpers to skip the DMA translation instead. This
removes the last user if dma_virt_ops and keeps the weird layering
violation inside the RDMA core instead of burderning the DMA mapping
subsystems with it. This also means the software RDMA drivers now don't
have to mess with DMA parameters that are not relevant to them at all, and
that in the future we can use PCI P2P transfers even for software RDMA, as
there is no first fake layer of DMA mapping that the P2P DMA support.Link: https://lore.kernel.org/r/20201106181941.1878556-8-hch@lst.de
Signed-off-by: Christoph Hellwig
Tested-by: Mike Marciniszyn
Signed-off-by: Jason Gunthorpe
Signed-off-by: Sasha Levin -
commit aa8c7db494d0a83ecae583aa193f1134ef25d506 upstream.
Silly GCC doesn't always inline these trivial functions.
Fixes the following warning:
arch/x86/kernel/sys_ia32.o: warning: objtool: cp_stat64()+0xd8: call to new_encode_dev() with UACCESS enabled
Link: https://lkml.kernel.org/r/984353b44a4484d86ba9f73884b7306232e25e30.1608737428.git.jpoimboe@redhat.com
Signed-off-by: Josh Poimboeuf
Reported-by: Randy Dunlap
Acked-by: Randy Dunlap [build-tested]
Cc: Peter Zijlstra
Cc: Greg Kroah-Hartman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Greg Kroah-Hartman -
Only kill a task with a negative ADJ score if there are no tasks with
non-negative ADJ scores. Otherwise, kill the task with the most
badness points whose ADJ score is also positive, if such a suitable
task exists.Bug: 173837271
Signed-off-by: Chris Goldsworthy
Change-Id: I70fe48a3eeb853085bb1acfb422f88cd36d1f14d -
"flags" is added to the vendor hook parameter so that the module can know
the event type of task enqueue/dequeue.Bug: 176917922
Signed-off-by: Park Bumgyu
Change-Id: I7cc60908e301d75393bdf84861878a94de80d683
08 Jan, 2021
6 commits
-
Add vendors hooks for to facilitate various scheduler value adds.
Bug: 176077958
Change-Id: I5d488ae78ce05f81e6c73b69c56128b065647fec
Signed-off-by: Shaleen Agrawal -
Use scs_alloc() to allocate also IRQ and SDEI shadow stacks instead of
using statically allocated stacks.Bug: 169781940
Change-Id: If3f38d603a7c1e8ebcf1e8655b70fa6bfde7c48d
(cherry picked from commit ac20ffbb0279aae7be48567fb734eae7d050769e)
Signed-off-by: Sami Tolvanen
Acked-by: Will Deacon
Link: https://lore.kernel.org/r/20201130233442.2562064-3-samitolvanen@google.com
[will: Move CONFIG_SHADOW_CALL_STACK check into init_irq_scs()]
Signed-off-by: Will Deacon -
The kernel currently uses kmem_cache to allocate shadow call stacks,
which means an overflows may not be immediately detected and can
potentially result in another task's shadow stack to be overwritten.This change switches SCS to use virtually mapped shadow stacks for
tasks, which increases shadow stack size to a full page and provides
more robust overflow detection, similarly to VMAP_STACK.Bug: 169781940
Change-Id: I92c8f5706c11e4bf45b071e4f302a65502faa1e1
(cherry picked from commit a2abe7cbd8fe2db5ff386c968e2273d9dc6c468d)
Signed-off-by: Sami Tolvanen
Acked-by: Will Deacon
Link: https://lore.kernel.org/r/20201130233442.2562064-2-samitolvanen@google.com
Signed-off-by: Will Deacon -
At present, EAS gets disabled when on ASYM Capacity systems
if all BIG or Little CPUs gets hot-plugged. Instead of disabling
EAS by default, add trace hook and let vendor decide if EAS should
be disabled or not.Bug: 176964092
Change-Id: I583272cc89d44f3e3a4b1c43e3f75d731092ebf6
Signed-off-by: Satya Durga Srinivasu Prabhala -
A task can migrate either while it is waking or while it
is running via load balancer. Print the task status
i.e running or not in sched_migrate_task. This helps in
counting the different types of migrations without relying
on other trace events.Bug: 176709810
Change-Id: Ib473f9ccdc78003bb1f5d2dc24354f2db7a684f5
Signed-off-by: Pavankumar Kondeti
Signed-off-by: Satya Durga Srinivasu Prabhala -
When the sum of the utilization of CPUs in a power domain is zero,
return the energy as 0 without doing any computations.Acked-by: Quentin Perret
Reviewed-by: Dietmar Eggemann
Signed-off-by: Pavankumar Kondeti
Signed-off-by: Rafael J. Wysocki(cherry picked from commit 9cc7e96aa846f9086431d6c2d33ff9ab42d72b2d)
Bug: 173981595
Signed-off-by: Pavankumar Kondeti
Change-Id: I9b1a83d210c30a8a86da26f94ac0c2f855d2ed10
07 Jan, 2021
4 commits
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Add vendor hook tracepoints to track when cpu util gets
updated and when freq is choosen.Bug: 174488007
Signed-off-by: Saravana Kannan
Signed-off-by: Rohit Gupta
Signed-off-by: Jonathan Avila
Signed-off-by: Jimmy Shiu
Change-Id: Ibb22fd0337a2539820a05b1e6b54b09aeaebd040
Signed-off-by: Will McVicker -
Free the pages parallely for a task that receives SIGKILL, from ULMK
process, using the oom_reaper. This freeing of pages will help to give
the pages to buddy system well advance.Add the boot param, reap_mem_when_killed_by=, that configures the
process name, the kill signal to a process from which makes its memory
reaped by oom reaper.As an example, when reap_mem_when_killed_by=lmkd, then all the processes
that receives the kill signal from lmkd is added to oom reaper.Not initializing this param makes this feature disabled.
Change-Id: I21adb95de5e380a80d7eb0b87d9b5b553f52e28a
Bug: 171763461
Signed-off-by: Charan Teja Reddy
Signed-off-by: Isaac J. Manjarres -
* aosp/upstream-f2fs-stable-linux-5.10.y:
fs-verity: move structs needed for file signing to UAPI header
fs-verity: rename "file measurement" to "file digest"
fs-verity: rename fsverity_signed_digest to fsverity_formatted_digest
fs-verity: remove filenames from file comments
fscrypt: allow deleting files with unsupported encryption policy
fscrypt: unexport fscrypt_get_encryption_info()
fscrypt: move fscrypt_require_key() to fscrypt_private.h
fscrypt: move body of fscrypt_prepare_setattr() out-of-line
fscrypt: introduce fscrypt_prepare_readdir()
ext4: don't call fscrypt_get_encryption_info() from dx_show_leaf()
ubifs: remove ubifs_dir_open()
f2fs: remove f2fs_dir_open()
ext4: remove ext4_dir_open()
fscrypt: simplify master key locking
fscrypt: remove unnecessary calls to fscrypt_require_key()
ubifs: prevent creating duplicate encrypted filenames
f2fs: prevent creating duplicate encrypted filenames
ext4: prevent creating duplicate encrypted filenames
fscrypt: add fscrypt_is_nokey_name()
fscrypt: remove kernel-internal constants from UAPI headerConflicts:
fs/crypto/hooks.cBug: 174873661
Signed-off-by: Jaegeuk Kim
Change-Id: Id56d42fc959242524628752223e9d773a2c8681c -
Export get_page_owner symbol for loadable vendor
modules.Bug: 176277889
Change-Id: Iea0a8022e542d1223caf4a742a888647828ca7cc
Signed-off-by: Vijayanand Jitta
