31 Mar, 2020
1 commit
-
Pull locking updates from Ingo Molnar:
"The main changes in this cycle were:- Continued user-access cleanups in the futex code.
- percpu-rwsem rewrite that uses its own waitqueue and atomic_t
instead of an embedded rwsem. This addresses a couple of
weaknesses, but the primary motivation was complications on the -rt
kernel.- Introduce raw lock nesting detection on lockdep
(CONFIG_PROVE_RAW_LOCK_NESTING=y), document the raw_lock vs. normal
lock differences. This too originates from -rt.- Reuse lockdep zapped chain_hlocks entries, to conserve RAM
footprint on distro-ish kernels running into the "BUG:
MAX_LOCKDEP_CHAIN_HLOCKS too low!" depletion of the lockdep
chain-entries pool.- Misc cleanups, smaller fixes and enhancements - see the changelog
for details"* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t
thermal/x86_pkg_temp: Make pkg_temp_lock a raw_spinlock_t
Documentation/locking/locktypes: Minor copy editor fixes
Documentation/locking/locktypes: Further clarifications and wordsmithing
m68knommu: Remove mm.h include from uaccess_no.h
x86: get rid of user_atomic_cmpxchg_inatomic()
generic arch_futex_atomic_op_inuser() doesn't need access_ok()
x86: don't reload after cmpxchg in unsafe_atomic_op2() loop
x86: convert arch_futex_atomic_op_inuser() to user_access_begin/user_access_end()
objtool: whitelist __sanitizer_cov_trace_switch()
[parisc, s390, sparc64] no need for access_ok() in futex handling
sh: no need of access_ok() in arch_futex_atomic_op_inuser()
futex: arch_futex_atomic_op_inuser() calling conventions change
completion: Use lockdep_assert_RT_in_threaded_ctx() in complete_all()
lockdep: Add posixtimer context tracing bits
lockdep: Annotate irq_work
lockdep: Add hrtimer context tracing bits
lockdep: Introduce wait-type checks
completion: Use simple wait queues
sched/swait: Prepare usage in completions
...
28 Mar, 2020
1 commit
-
Move access_ok() in and pagefault_enable()/pagefault_disable() out.
Mechanical conversion only - some instances don't really need
a separate access_ok() at all (e.g. the ones only using
get_user()/put_user(), or architectures where access_ok()
is always true); we'll deal with that in followups.Signed-off-by: Al Viro
12 Mar, 2020
2 commits
-
The default defintions use fill pattern 0x90 for padding which for ARC
generates unintended "ldh_s r12,[r0,0x20]" corresponding to opcode 0x9090So use ".align 4" which insert a "nop_s" instruction instead.
Cc: stable@vger.kernel.org
Acked-by: Vineet Gupta
Signed-off-by: Eugeniy Paltsev
Signed-off-by: Vineet Gupta -
Before
------| CPU: 1 PID: 29061 Comm: tst-dynarray-at Not tainted 5.6.0-rc1-00002-g941fcc018ca6-dirty #12
|
| [ECR ]: 0x00090000 =>
| [EFA ]: 0x00000000
| [ERET ]: 0x2004aa6c
| @off 0x2aa6c in [/lib/libc-2.31.9000.so]
VMA: 0x20020000 to 0x20122000
| [STAT32]: 0x80080a82 [IE U ]
| BTA: 0x2004aa18 SP: 0x5ffff8a8 FP: 0x5ffff8fc
| LPS: 0x2008788e LPE: 0x20087896 LPC: 0x00000000
| r00: 0x00000000 r01: 0x5ffff8a8 r02: 0x00000000
| r03: 0x00000008 r04: 0xffffffff r05: 0x00000000
| r06: 0x00000000 r07: 0x00000000 r08: 0x00000087
| r09: 0x00000000 r10: 0x2010691c r11: 0x00000020
| r12: 0x2003b214 r13: 0x5ffff8a8 r14: 0x20126e68
| r15: 0x2001f26c r16: 0x2012a000 r17: 0x00000001
| r18: 0x5ffff8fc r19: 0x00000000 r20: 0x5ffff948
| r21: 0x00000001 r22: 0xffffffff r23: 0x5fffff8c
| r24: 0x4008c2a8 r25: 0x2001f6e0After
-----| CPU: 1 PID: 29061 Comm: tst-dynarray-at Not tainted 5.6.0-rc1-00002-g941fcc018ca6-dirty #12
| @off 0x2aa6c in [/lib/libc-2.31.9000.so] VMA: 0x20020000 to 0x20122000
| ECR: 0x00090000 EFA: 0x00000000 ERET: 0x2004aa6c
| STAT32: 0x80080a82 [IE U ] BTA: 0x2004aa18
| BLK: 0x2003b214 SP: 0x5ffff8a8 FP: 0x5ffff8fc
| LPS: 0x2008788e LPE: 0x20087896 LPC: 0x00000000
| r00: 0x00000000 r01: 0x5ffff8a8 r02: 0x00000000
| r03: 0x00000008 r04: 0xffffffff r05: 0x00000000
| r06: 0x00000000 r07: 0x00000000 r08: 0x00000087
| r09: 0x00000000 r10: 0x2010691c r11: 0x00000020
| r12: 0x2003b214 r13: 0x5ffff8a8 r14: 0x20126e68
| r15: 0x2001f26c r16: 0x2012a000 r17: 0x00000001
| r18: 0x5ffff8fc r19: 0x00000000 r20: 0x5ffff948
| r21: 0x00000001 r22: 0xffffffff r23: 0x5fffff8c
| r24: 0x4008c2a8 r25: 0x2001f6e0 BTA: 0x2004aa18Signed-off-by: Vineet Gupta
13 Feb, 2020
1 commit
-
The ARC platform code is not a clock provider, and just needs to call
of_clk_init().Hence it can include instead of .
Signed-off-by: Geert Uytterhoeven
Reviewed-by: Stephen Boyd
Signed-off-by: Vineet Gupta
10 Feb, 2020
3 commits
-
Reported-by: kbuild test robot
Link: http://lists.infradead.org/pipermail/linux-snps-arc/2020-February/006845.html
Signed-off-by: Vineet Gupta -
Fix language typos in arch/arc/Kconfig.
Cc: linux-snps-arc@lists.infradead.org
Signed-off-by: Randy Dunlap
Signed-off-by: Vineet Gupta -
CONFIG_IOSCHED_DEADLINE and CONFIG_IOSCHED_CFQ are gone since
commit f382fb0bcef4 ("block: remove legacy IO schedulers").The IOSCHED_DEADLINE was replaced by MQ_IOSCHED_DEADLINE and it will be
now enabled by default (along with MQ_IOSCHED_KYBER).Signed-off-by: Krzysztof Kozlowski
Signed-off-by: Vineet Gupta
04 Feb, 2020
1 commit
-
walk_page_range() is going to be allowed to walk page tables other than
those of user space. For this it needs to know when it has reached a
'leaf' entry in the page tables. This information will be provided by the
p?d_leaf() functions/macros.For arc, we only have two levels, so only pmd_leaf() is needed.
Link: http://lkml.kernel.org/r/20191218162402.45610-3-steven.price@arm.com
Signed-off-by: Steven Price
Acked-by: Vineet Gupta
Cc: Albert Ou
Cc: Alexandre Ghiti
Cc: Andy Lutomirski
Cc: Ard Biesheuvel
Cc: Arnd Bergmann
Cc: Benjamin Herrenschmidt
Cc: Borislav Petkov
Cc: Catalin Marinas
Cc: Christian Borntraeger
Cc: Dave Hansen
Cc: David S. Miller
Cc: Heiko Carstens
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: James Hogan
Cc: James Morse
Cc: Jerome Glisse
Cc: "Liang, Kan"
Cc: Mark Rutland
Cc: Michael Ellerman
Cc: Paul Burton
Cc: Paul Mackerras
Cc: Paul Walmsley
Cc: Peter Zijlstra
Cc: Ralf Baechle
Cc: Russell King
Cc: Thomas Gleixner
Cc: Vasily Gorbik
Cc: Will Deacon
Cc: Zong Li
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Feb, 2020
1 commit
-
Pull ARC updates from Vineet Gupta:
- Wire up clone3 syscall
- ARCv2 FPU state save/restore across context switch
- AXS10x platform and misc fixes
* tag 'arc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARCv2: fpu: preserve userspace fpu state
ARC: fpu: declutter code, move bits out into fpu.h
ARC: wireup clone3 syscall
ARC: [plat-axs10x]: Add missing multicast filter number to GMAC node
ARC: update feature support for jump-labels
30 Jan, 2020
1 commit
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Pull tty/serial driver updates from Greg KH:
"Here are the big set of tty and serial driver updates for 5.6-rc1Included in here are:
- dummy_con cleanups (touches lots of arch code)
- sysrq logic cleanups (touches lots of serial drivers)
- samsung driver fixes (wasn't really being built)
- conmakeshash move to tty subdir out of scripts
- lots of small tty/serial driver updatesAll of these have been in linux-next for a while with no reported
issues"* tag 'tty-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits)
tty: n_hdlc: Use flexible-array member and struct_size() helper
tty: baudrate: SPARC supports few more baud rates
tty: baudrate: Synchronise baud_table[] and baud_bits[]
tty: serial: meson_uart: Add support for kernel debugger
serial: imx: fix a race condition in receive path
serial: 8250_bcm2835aux: Document struct bcm2835aux_data
serial: 8250_bcm2835aux: Use generic remapping code
serial: 8250_bcm2835aux: Allocate uart_8250_port on stack
serial: 8250_bcm2835aux: Suppress register_port error on -EPROBE_DEFER
serial: 8250_bcm2835aux: Suppress clk_get error on -EPROBE_DEFER
serial: 8250_bcm2835aux: Fix line mismatch on driver unbind
serial_core: Remove unused member in uart_port
vt: Correct comment documenting do_take_over_console()
vt: Delete comment referencing non-existent unbind_con_driver()
arch/xtensa/setup: Drop dummy_con initialization
arch/x86/setup: Drop dummy_con initialization
arch/unicore32/setup: Drop dummy_con initialization
arch/sparc/setup: Drop dummy_con initialization
arch/sh/setup: Drop dummy_con initialization
arch/s390/setup: Drop dummy_con initialization
...
29 Jan, 2020
3 commits
-
Pull scheduler updates from Ingo Molnar:
"These were the main changes in this cycle:- More -rt motivated separation of CONFIG_PREEMPT and
CONFIG_PREEMPTION.- Add more low level scheduling topology sanity checks and warnings
to filter out nonsensical topologies that break scheduling.- Extend uclamp constraints to influence wakeup CPU placement
- Make the RT scheduler more aware of asymmetric topologies and CPU
capacities, via uclamp metrics, if CONFIG_UCLAMP_TASK=y- Make idle CPU selection more consistent
- Various fixes, smaller cleanups, updates and enhancements - please
see the git log for details"* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
sched/fair: Define sched_idle_cpu() only for SMP configurations
sched/topology: Assert non-NUMA topology masks don't (partially) overlap
idle: fix spelling mistake "iterrupts" -> "interrupts"
sched/fair: Remove redundant call to cpufreq_update_util()
sched/psi: create /proc/pressure and /proc/pressure/{io|memory|cpu} only when psi enabled
sched/fair: Fix sgc->{min,max}_capacity calculation for SD_OVERLAP
sched/fair: calculate delta runnable load only when it's needed
sched/cputime: move rq parameter in irqtime_account_process_tick
stop_machine: Make stop_cpus() static
sched/debug: Reset watchdog on all CPUs while processing sysrq-t
sched/core: Fix size of rq::uclamp initialization
sched/uclamp: Fix a bug in propagating uclamp value in new cgroups
sched/fair: Load balance aggressively for SCHED_IDLE CPUs
sched/fair : Improve update_sd_pick_busiest for spare capacity case
watchdog: Remove soft_lockup_hrtimer_cnt and related code
sched/rt: Make RT capacity-aware
sched/fair: Make EAS wakeup placement consider uclamp restrictions
sched/fair: Make task_fits_capacity() consider uclamp restrictions
sched/uclamp: Rename uclamp_util_with() into uclamp_rq_util_with()
sched/uclamp: Make uclamp util helpers use and return UL values
... -
Pull EFI updates from Ingo Molnar:
"The main changes in this cycle were:- Cleanup of the GOP [graphics output] handling code in the EFI stub
- Complete refactoring of the mixed mode handling in the x86 EFI stub
- Overhaul of the x86 EFI boot/runtime code
- Increase robustness for mixed mode code
- Add the ability to disable DMA at the root port level in the EFI
stub- Get rid of RWX mappings in the EFI memory map and page tables,
where possible- Move the support code for the old EFI memory mapping style into its
only user, the SGI UV1+ support code.- plus misc fixes, updates, smaller cleanups.
... and due to interactions with the RWX changes, another round of PAT
cleanups make a guest appearance via the EFI tree - with no side
effects intended"* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (75 commits)
efi/x86: Disable instrumentation in the EFI runtime handling code
efi/libstub/x86: Fix EFI server boot failure
efi/x86: Disallow efi=old_map in mixed mode
x86/boot/compressed: Relax sed symbol type regex for LLVM ld.lld
efi/x86: avoid KASAN false positives when accessing the 1: 1 mapping
efi: Fix handling of multiple efi_fake_mem= entries
efi: Fix efi_memmap_alloc() leaks
efi: Add tracking for dynamically allocated memmaps
efi: Add a flags parameter to efi_memory_map
efi: Fix comment for efi_mem_type() wrt absent physical addresses
efi/arm: Defer probe of PCIe backed efifb on DT systems
efi/x86: Limit EFI old memory map to SGI UV machines
efi/x86: Avoid RWX mappings for all of DRAM
efi/x86: Don't map the entire kernel text RW for mixed mode
x86/mm: Fix NX bit clearing issue in kernel_map_pages_in_pgd
efi/libstub/x86: Fix unused-variable warning
efi/libstub/x86: Use mandatory 16-byte stack alignment in mixed mode
efi/libstub/x86: Use const attribute for efi_is_64bit()
efi: Allow disabling PCI busmastering on bridges during boot
efi/x86: Allow translating 64-bit arguments for mixed mode calls
... -
Pull objtool updates from Ingo Molnar:
"The main changes are to move the ORC unwind table sorting from early
init to build-time - this speeds up booting.No change in functionality intended"
* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/unwind/orc: Fix !CONFIG_MODULES build warning
x86/unwind/orc: Remove boot-time ORC unwind tables sorting
scripts/sorttable: Implement build-time ORC unwind table sorting
scripts/sorttable: Rename 'sortextable' to 'sorttable'
scripts/sortextable: Refactor the do_func() function
scripts/sortextable: Remove dead code
scripts/sortextable: Clean up the code to meet the kernel coding style better
scripts/sortextable: Rewrite error/success handling
18 Jan, 2020
2 commits
-
Signed-off-by: Vineet Gupta
-
Signed-off-by: Vineet Gupta
16 Jan, 2020
1 commit
-
Signed-off-by: Vineet Gupta
15 Jan, 2020
1 commit
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Add a missing property to GMAC node so that multicast filtering works
correctly.Fixes: 556cc1c5f528 ("ARC: [axs101] Add support for AXS101 SDP (software development platform)")
Acked-by: Alexey Brodkin
Signed-off-by: Jose Abreu
Signed-off-by: Vineet Gupta
14 Jan, 2020
1 commit
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con_init in tty/vt.c will now set conswitchp to dummy_con if it's unset.
Drop it from arch setup code.Signed-off-by: Arvind Sankar
Link: https://lore.kernel.org/r/20191218214506.49252-5-nivedita@alum.mit.edu
Signed-off-by: Greg Kroah-Hartman
11 Jan, 2020
1 commit
-
Signed-off-by: Ingo Molnar
07 Jan, 2020
1 commit
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Pull ARC fixes from Vineet Gupta:
"Kconfig warning, stale define, duplicate asm-offset entry ..."* tag 'arc-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: pt_regs: remove hardcoded registers offset
ARC: asm-offsets: remove duplicate entry
ARC: mm: drop stale define of __ARCH_USE_5LEVEL_HACK
arc: eznps: fix allmodconfig kconfig warning
29 Dec, 2019
1 commit
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Replace hardcoded registers offset numbers by calculated via
offsetof.Signed-off-by: Eugeniy Paltsev
Signed-off-by: Vineet Gupta
25 Dec, 2019
1 commit
-
Signed-off-by: Ingo Molnar
19 Dec, 2019
1 commit
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We define 'PT_user_r25' twice in asm-offsets.c
It's not a big issue as we define it to the same value, however
let's fix it.Signed-off-by: Eugeniy Paltsev
Signed-off-by: Vineet Gupta
13 Dec, 2019
1 commit
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Use a more generic name for additional table sorting usecases,
such as the upcoming ORC table sorting feature. This tool is
not tied to exception table sorting anymore.No functional changes intended.
[ mingo: Rewrote the changelog. ]
Signed-off-by: Shile Zhang
Acked-by: Peter Zijlstra (Intel)
Cc: Josh Poimboeuf
Cc: Masahiro Yamada
Cc: Michal Marek
Cc: linux-kbuild@vger.kernel.org
Link: https://lkml.kernel.org/r/20191204004633.88660-6-shile.zhang@linux.alibaba.com
Signed-off-by: Ingo Molnar
10 Dec, 2019
4 commits
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In the x86 MM code we'd like to untangle various types of historic
header dependency spaghetti, but for this we'd need to pass to
the generic vmalloc code various vmalloc related defines that
customarily come via the low level arch header.Signed-off-by: Ingo Molnar
-
Commit 6aae3425aa9c ("ARC: mm: remove __ARCH_USE_5LEVEL_HACK") make ARC
paging code 5-level compliant but left behind a stale define of
__ARCH_USE_5LEVEL_HACK in arch/arc/include/asm/hugepage.h.Remove it.
Signed-off-by: Mike Rapoport
Signed-off-by: Vineet Gupta -
Fix kconfig warning for arch/arc/plat-eznps/Kconfig allmodconfig:
WARNING: unmet direct dependencies detected for CLKSRC_NPS
Depends on [n]: GENERIC_CLOCKEVENTS [=y] && !PHYS_ADDR_T_64BIT [=y]
Selected by [y]:
- ARC_PLAT_EZNPS [=y]Signed-off-by: Randy Dunlap
Cc: Vineet Gupta
Cc: Ofer Levi
Cc: linux-snps-arc@lists.infradead.org
Signed-off-by: Vineet Gupta -
Replace all the occurrences of FIELD_SIZEOF() with sizeof_field() except
at places where these are defined. Later patches will remove the unused
definition of FIELD_SIZEOF().This patch is generated using following script:
EXCLUDE_FILES="include/linux/stddef.h|include/linux/kernel.h"
git grep -l -e "\bFIELD_SIZEOF\b" | while read file;
doif [[ "$file" =~ $EXCLUDE_FILES ]]; then
continue
fi
sed -i -e 's/\bFIELD_SIZEOF\b/sizeof_field/g' $file;
doneSigned-off-by: Pankaj Bharadiya
Link: https://lore.kernel.org/r/20190924105839.110713-3-pankaj.laxminarayan.bharadiya@intel.com
Co-developed-by: Kees Cook
Signed-off-by: Kees Cook
Acked-by: David Miller # for net
08 Dec, 2019
1 commit
-
CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT.
Both PREEMPT and PREEMPT_RT require the same functionality which today
depends on CONFIG_PREEMPT.Switch the entry code over to use CONFIG_PREEMPTION.
Signed-off-by: Thomas Gleixner
Signed-off-by: Sebastian Andrzej Siewior
Signed-off-by: Thomas Gleixner
Cc: Linus Torvalds
Cc: Peter Zijlstra
Cc: Vineet Gupta
Cc: linux-snps-arc@lists.infradead.org
Link: https://lore.kernel.org/r/20191015191821.11479-5-bigeasy@linutronix.de
Signed-off-by: Ingo Molnar
05 Dec, 2019
1 commit
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Pull ARC updates from Vineet Gupta
- Jump Label support for ARC
- kmemleak enabled
- arc mm backend TLB Miss / flush optimizations
- nSIM platform switching to dwuart (vs. arcuart) and ensuing defconfig
updates and cleanups- axs platform pll / video-mode updates
* tag 'arc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: add kmemleak support
ARC: [plat-axs10x]: remove hardcoded video mode from bootargs
ARC: [plat-axs10x]: use pgu pll instead of fixed clock
ARC: ARCv2: jump label: implement jump label patching
ARC: mm: tlb flush optim: elide redundant uTLB invalidates for MMUv3
ARC: mm: tlb flush optim: elide repeated uTLB invalidate in loop
ARC: mm: tlb flush optim: Make TLBWriteNI fallback to TLBWrite if not available
ARC: mm: TLB Miss optim: avoid re-reading ECR
ARCv2: mm: TLB Miss optim: Use double world load/stores LDD/STD
ARCv2: mm: TLB Miss optim: SMP builds can cache pgd pointer in mmu scratch reg
ARC: nSIM_700: remove unused network options
ARC: nSIM_700: switch to DW UART usage
ARC: merge HAPS-HS with nSIM-HS configs
ARC: HAPS: cleanup defconfigs from unused ETH drivers
ARC: HAPS: add HIGHMEM memory zone to DTS
ARC: HAPS: use same UART configuration everywhere
ARC: HAPS: cleanup defconfigs from unused IO-related options
ARC: regenerate nSIM and HAPS defconfigs
04 Dec, 2019
1 commit
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Pull PCI updates from Bjorn Helgaas:
"Enumeration:- Warn if a host bridge has no NUMA info (Yunsheng Lin)
- Add PCI_STD_NUM_BARS for the number of standard BARs (Denis
Efremov)Resource management:
- Fix boot-time Embedded Controller GPE storm caused by incorrect
resource assignment after ACPI Bus Check Notification (Mika
Westerberg)- Protect pci_reassign_bridge_resources() against concurrent
addition/removal (Benjamin Herrenschmidt)- Fix bridge dma_ranges resource list cleanup (Rob Herring)
- Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control
the MMIO and prefetchable MMIO window sizes of hotplug bridges
independently (Nicholas Johnson)- Fix MMIO/MMIO_PREF window assignment that assigned more space than
desired (Nicholas Johnson)- Only enforce bus numbers from bridge EA if the bridge has EA
devices downstream (Subbaraya Sundeep)- Consolidate DT "dma-ranges" parsing and convert all host drivers to
use shared parsing (Rob Herring)Error reporting:
- Restore AER capability after resume (Mayurkumar Patel)
- Add PoisonTLPBlocked AER counter (Rajat Jain)
- Use for_each_set_bit() to simplify AER code (Andy Shevchenko)
- Fix AER kernel-doc (Andy Shevchenko)
- Add "pcie_ports=dpc-native" parameter to allow native use of DPC
even if platform didn't grant control over AER (Olof Johansson)Hotplug:
- Avoid returning prematurely from sysfs requests to enable or
disable a PCIe hotplug slot (Lukas Wunner)- Don't disable interrupts twice when suspending hotplug ports (Mika
Westerberg)- Fix deadlocks when PCIe ports are hot-removed while suspended (Mika
Westerberg)Power management:
- Remove unnecessary ASPM locking (Bjorn Helgaas)
- Add support for disabling L1 PM Substates (Heiner Kallweit)
- Allow re-enabling Clock PM after it has been disabled (Heiner
Kallweit)- Add sysfs attributes for controlling ASPM link states (Heiner
Kallweit)- Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl"
sysfs files (Heiner Kallweit)- Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on
USB 2.0 or 1.1 connect events (Kai-Heng Feng)- Move power state check out of pci_msi_supported() (Bjorn Helgaas)
- Fix incorrect MSI-X masking on resume and revert related nvme quirk
for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan)- Always return devices to D0 when thawing to fix hibernation with
drivers like mlx4 that used legacy power management (previously we
only did it for drivers with new power management ops) (Dexuan Cui)- Clear PCIe PME Status even for legacy power management (Bjorn
Helgaas)- Fix PCI PM documentation errors (Bjorn Helgaas)
- Use dev_printk() for more power management messages (Bjorn Helgaas)
- Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas)
- Convert xen-platform from legacy to generic power management (Bjorn
Helgaas)- Removed unused .resume_early() and .suspend_late() legacy power
management hooks (Bjorn Helgaas)- Rearrange power management code for clarity (Rafael J. Wysocki)
- Decode power states more clearly ("4" or "D4" really refers to
"D3cold") (Bjorn Helgaas)- Notice when reading PM Control register returns an error (~0)
instead of interpreting it as being in D3hot (Bjorn Helgaas)- Add missing link delays required by the PCIe spec (Mika Westerberg)
Virtualization:
- Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn
Helgaas)- Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code
previously didn't recognize that) (Kuppuswamy Sathyanarayanan)- Allow VFs to use PASID (the PF PASID capability is shared by the
VFs, but the code previously didn't recognize that) (Kuppuswamy
Sathyanarayanan)- Disconnect PF and VF ATS enablement, since ATS in PFs and
associated VFs can be enabled independently (Kuppuswamy
Sathyanarayanan)- Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan)
- Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas)
- Consolidate ATS declarations in linux/pci-ats.h (Krzysztof
Wilczynski)- Remove unused PRI and PASID stubs (Bjorn Helgaas)
- Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID
interfaces that are only used by built-in IOMMU drivers (Bjorn
Helgaas)- Hide PRI and PASID state restoration functions used only inside the
PCI core (Bjorn Helgaas)- Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski)
- Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut)
- Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George
Cherian)- Fix the UPDCR register address in the Intel ACS quirk (Steffen
Liebergeld)- Unify ACS quirk implementations (Bjorn Helgaas)
Amlogic Meson host bridge driver:
- Fix meson PERST# GPIO polarity problem (Remi Pommarel)
- Add DT bindings for Amlogic Meson G12A (Neil Armstrong)
- Fix meson clock names to match DT bindings (Neil Armstrong)
- Add meson support for Amlogic G12A SoC with separate shared PHY
(Neil Armstrong)- Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe
combo PHY (Neil Armstrong)- Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong)
- Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT
(Neil Armstrong)Broadcom iProc host bridge driver:
- Invalidate iProc PAXB address mapping before programming it
(Abhishek Shah)- Fix iproc-msi and mvebu __iomem annotations (Ben Dooks)
Cadence host bridge driver:
- Refactor Cadence PCIe host controller to use as a library for both
host and endpoint (Tom Joseph)Freescale Layerscape host bridge driver:
- Add layerscape LS1028a support (Xiaowei Bao)
Intel VMD host bridge driver:
- Add VMD bus 224-255 restriction decode (Jon Derrick)
- Add VMD 8086:9A0B device ID (Jon Derrick)
- Remove Keith from VMD maintainer list (Keith Busch)
Marvell ARMADA 3700 / Aardvark host bridge driver:
- Use LTSSM state to build link training flag since Aardvark doesn't
implement the Link Training bit (Remi Pommarel)- Delay before training Aardvark link in case PERST# was asserted
before the driver probe (Remi Pommarel)- Fix Aardvark issues with Root Control reads and writes (Remi
Pommarel)- Don't rely on jiffies in Aardvark config access path since
interrupts may be disabled (Remi Pommarel)- Fix Aardvark big-endian support (Grzegorz Jaszczyk)
Marvell ARMADA 370 / XP host bridge driver:
- Make mvebu_pci_bridge_emul_ops static (Ben Dooks)
Microsoft Hyper-V host bridge driver:
- Add hibernation support for Hyper-V virtual PCI devices (Dexuan
Cui)- Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan
Cui)- Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui)
Mobiveil host bridge driver:
- Change mobiveil csr_read()/write() function names that conflict
with riscv arch functions (Kefeng Wang)NVIDIA Tegra host bridge driver:
- Fix Tegra CLKREQ dependency programming (Vidya Sagar)
Renesas R-Car host bridge driver:
- Remove unnecessary header include from rcar (Andrew Murray)
- Tighten register index checking for rcar inbound range programming
(Marek Vasut)- Fix rcar inbound range alignment calculation to improve packing of
multiple entries (Marek Vasut)- Update rcar MACCTLR setting to match documentation (Yoshihiro
Shimoda)- Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual
(Yoshihiro Shimoda)- Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon
Horman)Rockchip host bridge driver:
- Make rockchip 0V9 and 1V8 power regulators non-optional (Robin
Murphy)Socionext UniPhier host bridge driver:
- Set uniphier to host (RC) mode always (Kunihiko Hayashi)
Endpoint drivers:
- Fix endpoint driver sign extension problem when shifting page
number to phys_addr_t (Alan Mikhak)Misc:
- Add NumaChip SPDX header (Krzysztof Wilczynski)
- Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski)
- Remove unused includes (Krzysztof Wilczynski)
- Removed unused sysfs attribute groups (Ben Dooks)
- Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas)
- Add PCIe Link Control 2 register field definitions to replace magic
numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas)- Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and
Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas)- Use pcie_capability_read_word() instead of pci_read_config_word()
in AMDGPU and Radeon CIK/SI (Frederick Lawler)- Remove unused pci_irq_get_node() Greg Kroah-Hartman)
- Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig
(Palmer Dabbelt, Michal Simek)- Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe)
- Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn
Helgaas)- Fix bridge emulation big-endian support (Grzegorz Jaszczyk)
- Fix dwc find_next_bit() usage (Niklas Cassel)
- Fix pcitest.c fd leak (Hewenliang)
- Fix typos and comments (Bjorn Helgaas)
- Fix Kconfig whitespace errors (Krzysztof Kozlowski)"
* tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits)
PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist
asm-generic: Make msi.h a mandatory include/asm header
Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T"
PCI/MSI: Fix incorrect MSI-X masking on resume
PCI/MSI: Move power state check out of pci_msi_supported()
PCI/MSI: Remove unused pci_irq_get_node()
PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer
PCI: hv: Change pci_protocol_version to per-hbus
PCI: hv: Add hibernation support
PCI: hv: Reorganize the code in preparation of hibernation
MAINTAINERS: Remove Keith from VMD maintainer
PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code
PCI/ASPM: Add sysfs attributes for controlling ASPM link states
PCI: Fix indentation
drm/radeon: Prefer pcie_capability_read_word()
drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions
drm/radeon: Correct Transmit Margin masks
drm/amdgpu: Prefer pcie_capability_read_word()
PCI: uniphier: Set mode register to host mode
drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions
...
02 Dec, 2019
2 commits
-
Merge updates from Andrew Morton:
"Incoming:- a small number of updates to scripts/, ocfs2 and fs/buffer.c
- most of MM
I still have quite a lot of material (mostly not MM) staged after
linux-next due to -next dependencies. I'll send those across next week
as the preprequisites get merged up"* emailed patches from Andrew Morton : (135 commits)
mm/page_io.c: annotate refault stalls from swap_readpage
mm/Kconfig: fix trivial help text punctuation
mm/Kconfig: fix indentation
mm/memory_hotplug.c: remove __online_page_set_limits()
mm: fix typos in comments when calling __SetPageUptodate()
mm: fix struct member name in function comments
mm/shmem.c: cast the type of unmap_start to u64
mm: shmem: use proper gfp flags for shmem_writepage()
mm/shmem.c: make array 'values' static const, makes object smaller
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
fs/userfaultfd.c: wp: clear VM_UFFD_MISSING or VM_UFFD_WP during userfaultfd_register()
userfaultfd: wrap the common dst_vma check into an inlined function
userfaultfd: remove unnecessary WARN_ON() in __mcopy_atomic_hugetlb()
userfaultfd: use vma_pagesize for all huge page size calculation
mm/madvise.c: use PAGE_ALIGN[ED] for range checking
mm/madvise.c: replace with page_size() in madvise_inject_error()
mm/mmap.c: make vma_merge() comment more easy to understand
mm/hwpoison-inject: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops
autonuma: reduce cache footprint when scanning page tables
autonuma: fix watermark checking in migrate_balanced_pgdat()
... -
Pull sysctl system call removal from Eric Biederman:
"As far as I can tell we have reached the point where no one enables
the sysctl system call anymore. It still is enabled in a few
defconfigs but they are mostly the rarely used one and in asking
people about that it was more cut & paste enabled than anything else.This is single commit that just deletes code. Leaving just enough code
so that the deprecated sysctl warning continues to be printed. If my
analysis turns out to be wrong and someone actually cares it will be
easy to revert this commit and have the system call again.There was one new xtensa defconfig in linux-next that enabled the
system call this cycle and when asked about it the maintainer of the
code replied that it was not enabled on purpose. As of today's
linux-next tree that defconfig no longer enables the system call.What we saw in the review discussion was that if we go a step farther
than my patch and mess with uapi headers there are pieces of code that
won't compile, but nothing minds the system call actually disappearing
from the kernel"Link: https://lore.kernel.org/lkml/201910011140.EA0181F13@keescook/
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
sysctl: Remove the sysctl system call
01 Dec, 2019
1 commit
-
Patch series "elide extraneous generated code for folded p4d/pud/pmd", v3.
This series came out of seemingly benign excursion into
understanding/removing __ARCH_USE_5LEVEL_HACK from ARC port showing some
extraneous code being generated despite folded p4d/pud/pmd| bloat-o-meter2 vmlinux-[AB]*
| add/remove: 0/0 grow/shrink: 3/0 up/down: 130/0 (130)
| function old new delta
| free_pgd_range 548 660 +112
| p4d_clear_bad 2 20 +18The patches here address that
| bloat-o-meter2 vmlinux-[BF]*
| add/remove: 0/2 grow/shrink: 0/1 up/down: 0/-386 (-386)
| function old new delta
| pud_clear_bad 20 - -20
| p4d_clear_bad 20 - -20
| free_pgd_range 660 314 -346The code savings are not a whole lot, but still worthwhile IMHO.
This patch (of 5):
With paging code made 5-level compliant, this is no longer needed. ARC
has software page walker with 2 lookup levels (pgd -> pte)This was expected to be non functional change but ended with slight
code bloat due to needless inclusions of p*d_free_tlb() macros which
will be addressed in further patches.| bloat-o-meter2 vmlinux-[AB]*
| add/remove: 0/0 grow/shrink: 2/0 up/down: 128/0 (128)
| function old new delta
| free_pgd_range 546 656 +110
| p4d_clear_bad 2 20 +18
| Total: Before=4137148, After=4137276, chg 0.000000%Link: http://lkml.kernel.org/r/20191016162400.14796-2-vgupta@synopsys.com
Signed-off-by: Vineet Gupta
Acked-by: Kirill A. Shutemov
Cc: "Aneesh Kumar K . V"
Cc: Arnd Bergmann
Cc: Nick Piggin
Cc: Peter Zijlstra
Cc: Will Deacon
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
29 Nov, 2019
2 commits
-
…linux; tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- improve dma-debug scalability (Eric Dumazet)
- tiny dma-debug cleanup (Dan Carpenter)
- check for vmap memory in dma_map_single (Kees Cook)
- check for dma_addr_t overflows in dma-direct when using DMA offsets
(Nicolas Saenz Julienne)- switch the x86 sta2x11 SOC to use more generic DMA code (Nicolas
Saenz Julienne)- fix arm-nommu dma-ranges handling (Vladimir Murzin)
- use __initdata in CMA (Shyam Saini)
- replace the bus dma mask with a limit (Nicolas Saenz Julienne)
- merge the remapping helpers into the main dma-direct flow (me)
- switch xtensa to the generic dma remap handling (me)
- various cleanups around dma_capable (me)
- remove unused dev arguments to various dma-noncoherent helpers (me)
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux:
* tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping: (22 commits)
dma-mapping: treat dev->bus_dma_mask as a DMA limit
dma-direct: exclude dma_direct_map_resource from the min_low_pfn check
dma-direct: don't check swiotlb=force in dma_direct_map_resource
dma-debug: clean up put_hash_bucket()
powerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys
dma-direct: avoid a forward declaration for phys_to_dma
dma-direct: unify the dma_capable definitions
dma-mapping: drop the dev argument to arch_sync_dma_for_*
x86/PCI: sta2x11: use default DMA address translation
dma-direct: check for overflows on 32 bit DMA addresses
dma-debug: increase HASH_SIZE
dma-debug: reorder struct dma_debug_entry fields
xtensa: use the generic uncached segment support
dma-mapping: merge the generic remapping helpers into dma-direct
dma-direct: provide mmap and get_sgtable method overrides
dma-direct: remove the dma_handle argument to __dma_direct_alloc_pages
dma-direct: remove __dma_direct_free_pages
usb: core: Remove redundant vmap checks
kernel: dma-contiguous: mark CMA parameters __initdata/__initconst
dma-debug: add a schedule point in debug_dma_dump_mappings()
... -
Pull generic ioremap support from Christoph Hellwig:
"This adds the remaining bits for an entirely generic ioremap and
iounmap to lib/ioremap.c. To facilitate that, it cleans up the giant
mess of weird ioremap variants we had with no users outside the arch
code.For now just the three newest ports use the code, but there is more
than a handful others that can be converted without too much work.Summary:
- clean up various obsolete ioremap and iounmap variants
- add a new generic ioremap implementation and switch csky, nds32 and
riscv over to it"* tag 'ioremap-5.5' of git://git.infradead.org/users/hch/ioremap: (21 commits)
nds32: use generic ioremap
csky: use generic ioremap
csky: remove ioremap_cache
riscv: use the generic ioremap code
lib: provide a simple generic ioremap implementation
sh: remove __iounmap
nios2: remove __iounmap
hexagon: remove __iounmap
m68k: rename __iounmap and mark it static
arch: rely on asm-generic/io.h for default ioremap_* definitions
asm-generic: don't provide ioremap for CONFIG_MMU
asm-generic: ioremap_uc should behave the same with and without MMU
xtensa: clean up ioremap
x86: Clean up ioremap()
parisc: remove __ioremap
nios2: remove __ioremap
alpha: remove the unused __ioremap wrapper
hexagon: clean up ioremap
ia64: rename ioremap_nocache to ioremap_uc
unicore32: remove ioremap_cached
...
27 Nov, 2019
3 commits
-
msi.h is generic for all architectures except x86, which has its own
version. Enabling MSI by adding msi.h to every architecture's Kbuild is
just an additional step which doesn't need to be done.Make msi.h mandatory in the asm-generic/Kbuild so we don't have to do it
for each architecture.Suggested-by: Christoph Hellwig
Link: https://lore.kernel.org/r/c991669e29a79b1a8e28c3b4b3a125801a693de8.1571983829.git.michal.simek@xilinx.com
Tested-by: Paul Walmsley # build only, rv32/rv64
Signed-off-by: Michal Simek
Signed-off-by: Bjorn Helgaas
Reviewed-by: Masahiro Yamada
Acked-by: Waiman Long
Acked-by: Paul Walmsley # arch/riscv -
This system call has been deprecated almost since it was introduced, and
in a survey of the linux distributions I can no longer find any of them
that enable CONFIG_SYSCTL_SYSCALL. The only indication that I can find
that anyone might care is that a few of the defconfigs in the kernel
enable CONFIG_SYSCTL_SYSCALL. However this appears in only 31 of 414
defconfigs in the kernel, so I suspect this symbols presence is simply
because it is harmless to include rather than because it is necessary.As there appear to be no users of the sysctl system call, remove the
code. As this removes one of the few uses of the internal kernel mount
of proc I hope this allows for even more simplifications of the proc
filesystem.Cc: Alex Smith
Cc: Anders Berg
Cc: Apelete Seketeli
Cc: Arnd Bergmann
Cc: Chee Nouk Phoon
Cc: Chris Zankel
Cc: Christian Ruppert
Cc: Greg Ungerer
Cc: Harvey Hunt
Cc: Helge Deller
Cc: Hongliang Tao
Cc: Hua Yan
Cc: Huacai Chen
Cc: John Crispin
Cc: Jonas Jensen
Cc: Josh Boyer
Cc: Jun Nie
Cc: Kevin Hilman
Cc: Kevin Wells
Cc: Kumar Gala
Cc: Lars-Peter Clausen
Cc: Ley Foon Tan
Cc: Linus Walleij
Cc: Markos Chandras
Cc: Max Filippov
Cc: Noam Camus
Cc: Olof Johansson
Cc: Paul Burton
Cc: Paul Mundt
Cc: Phil Edworthy
Cc: Pierrick Hascoet
Cc: Ralf Baechle
Cc: Roland Stigge
Cc: Santosh Shilimkar
Cc: Scott Telford
Cc: Stephen Boyd
Cc: Steven J. Hill
Cc: Tanmay Inamdar
Cc: Vineet Gupta
Cc: Wolfram Sang
Acked-by: Andi Kleen
Reviewed-by: Kees Cook
Signed-off-by: "Eric W. Biederman" -
Pull x86 asm updates from Ingo Molnar:
"The main changes in this cycle were:- Cross-arch changes to move the linker sections for NOTES and
EXCEPTION_TABLE into the RO_DATA area, where they belong on most
architectures. (Kees Cook)- Switch the x86 linker fill byte from x90 (NOP) to 0xcc (INT3), to
trap jumps into the middle of those padding areas instead of
sliding execution. (Kees Cook)- A thorough cleanup of symbol definitions within x86 assembler code.
The rather randomly named macros got streamlined around a
(hopefully) straightforward naming scheme:SYM_START(name, linkage, align...)
SYM_END(name, sym_type)SYM_FUNC_START(name)
SYM_FUNC_END(name)SYM_CODE_START(name)
SYM_CODE_END(name)SYM_DATA_START(name)
SYM_DATA_END(name)etc - with about three times of these basic primitives with some
label, local symbol or attribute variant, expressed via postfixes.No change in functionality intended. (Jiri Slaby)
- Misc other changes, cleanups and smaller fixes"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (67 commits)
x86/entry/64: Remove pointless jump in paranoid_exit
x86/entry/32: Remove unused resume_userspace label
x86/build/vdso: Remove meaningless CFLAGS_REMOVE_*.o
m68k: Convert missed RODATA to RO_DATA
x86/vmlinux: Use INT3 instead of NOP for linker fill bytes
x86/mm: Report actual image regions in /proc/iomem
x86/mm: Report which part of kernel image is freed
x86/mm: Remove redundant address-of operators on addresses
xtensa: Move EXCEPTION_TABLE to RO_DATA segment
powerpc: Move EXCEPTION_TABLE to RO_DATA segment
parisc: Move EXCEPTION_TABLE to RO_DATA segment
microblaze: Move EXCEPTION_TABLE to RO_DATA segment
ia64: Move EXCEPTION_TABLE to RO_DATA segment
h8300: Move EXCEPTION_TABLE to RO_DATA segment
c6x: Move EXCEPTION_TABLE to RO_DATA segment
arm64: Move EXCEPTION_TABLE to RO_DATA segment
alpha: Move EXCEPTION_TABLE to RO_DATA segment
x86/vmlinux: Move EXCEPTION_TABLE to RO_DATA segment
x86/vmlinux: Actually use _etext for the end of the text segment
vmlinux.lds.h: Allow EXCEPTION_TABLE to live in RO_DATA
...
