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9704762aed
13662 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
6adc19fd13 |
Kbuild updates for v5.8 (2nd)
- fix build rules in binderfs sample - fix build errors when Kbuild recurses to the top Makefile - covert '---help---' in Kconfig to 'help' -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAl7lBuYVHG1hc2FoaXJv eUBrZXJuZWwub3JnAAoJED2LAQed4NsGHvIP/3iErjPshpg/phwH8NTCS4SFkiti BZRM+2lupSn7Qs53BTpVzIkXoHBJQZlJxlQ5HY8ScO+fiz28rKZr+b40us+je1Q+ SkvSPfwZzxjEg7lAZutznG4KgItJLWJKmDyh9T8Y8TAuG4f8WO0hKnXoAp3YorS2 zppEIxso8O5spZPjp+fF/fPbxPjIsabGK7Jp2LpSVFR5pVDHI/ycTlKQS+MFpMEx 6JIpdFRw7TkvKew1dr5uAWT5btWHatEqjSR3JeyVHv3EICTGQwHmcHK67cJzGInK T51+DT7/CpKtmRgGMiTEu/INfMzzoQAKl6Fcu+vMaShTN97Hk9DpdtQyvA6P/h3L 8GA4UBct05J7fjjIB7iUD+GYQ0EZbaFujzRXLYk+dQqEJRbhcCwvdzggGp0WvGRs 1f8/AIpgnQv8JSL/bOMgGMS5uL2dSLsgbzTdr6RzWf1jlYdI1i4u7AZ/nBrwWP+Z iOBkKsVceEoJrTbaynl3eoYqFLtWyDau+//oBc2gUvmhn8ioM5dfqBRiJjxJnPG9 /giRj6xRIqMMEw8Gg8PCG7WebfWxWyaIQwlWBbPok7DwISURK5mvOyakZL+Q25/y 6MBr2H8NEJsf35q0GTINpfZnot7NX4JXrrndJH8NIRC7HEhwd29S041xlQJdP0rs E76xsOr3hrAmBu4P =1NIT -----END PGP SIGNATURE----- Merge tag 'kbuild-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: - fix build rules in binderfs sample - fix build errors when Kbuild recurses to the top Makefile - covert '---help---' in Kconfig to 'help' * tag 'kbuild-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: treewide: replace '---help---' in Kconfig files with 'help' kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables samples: binderfs: really compile this sample and fix build issues |
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Masahiro Yamada
|
a7f7f6248d |
treewide: replace '---help---' in Kconfig files with 'help'
Since commit
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Linus Torvalds
|
52cd0d972f |
MIPS:
- Loongson port PPC: - Fixes ARM: - Fixes x86: - KVM_SET_USER_MEMORY_REGION optimizations - Fixes - Selftest fixes The guest side of the asynchronous page fault work has been delayed to 5.9 in order to sync with Thomas's interrupt entry rework. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl7icj4UHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroPHGQgAj9+5j+f5v06iMP/+ponWwsVfh+5/ UR1gPbpMSFMKF0U+BCFxsBeGKWPDiz9QXaLfy6UGfOFYBI475Su5SoZ8/i/o6a2V QjcKIJxBRNs66IG/774pIpONY8/mm/3b6vxmQktyBTqjb6XMGlOwoGZixj/RTp85 +uwSICxMlrijg+fhFMwC4Bo/8SFg+FeBVbwR07my88JaLj+3cV/NPolG900qLSa6 uPqJ289EQ86LrHIHXCEWRKYvwy77GFsmBYjKZH8yXpdzUlSGNexV8eIMAz50figu wYRJGmHrRqwuzFwEGknv8SA3s2HVggXO4WVkWWCeJyO8nIVfYFUhME5l6Q== =+Hh0 -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull more KVM updates from Paolo Bonzini: "The guest side of the asynchronous page fault work has been delayed to 5.9 in order to sync with Thomas's interrupt entry rework, but here's the rest of the KVM updates for this merge window. MIPS: - Loongson port PPC: - Fixes ARM: - Fixes x86: - KVM_SET_USER_MEMORY_REGION optimizations - Fixes - Selftest fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (62 commits) KVM: x86: do not pass poisoned hva to __kvm_set_memory_region KVM: selftests: fix sync_with_host() in smm_test KVM: async_pf: Inject 'page ready' event only if 'page not present' was previously injected KVM: async_pf: Cleanup kvm_setup_async_pf() kvm: i8254: remove redundant assignment to pointer s KVM: x86: respect singlestep when emulating instruction KVM: selftests: Don't probe KVM_CAP_HYPERV_ENLIGHTENED_VMCS when nested VMX is unsupported KVM: selftests: do not substitute SVM/VMX check with KVM_CAP_NESTED_STATE check KVM: nVMX: Consult only the "basic" exit reason when routing nested exit KVM: arm64: Move hyp_symbol_addr() to kvm_asm.h KVM: arm64: Synchronize sysreg state on injecting an AArch32 exception KVM: arm64: Make vcpu_cp1x() work on Big Endian hosts KVM: arm64: Remove host_cpu_context member from vcpu structure KVM: arm64: Stop sparse from moaning at __hyp_this_cpu_ptr KVM: arm64: Handle PtrAuth traps early KVM: x86: Unexport x86_fpu_cache and make it static KVM: selftests: Ignore KVM 5-level paging support for VM_MODE_PXXV48_4K KVM: arm64: Save the host's PtrAuth keys in non-preemptible context KVM: arm64: Stop save/restoring ACTLR_EL1 KVM: arm64: Add emulation for 32bit guests accessing ACTLR2 ... |
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Linus Torvalds
|
9716e57a01 |
Peter Zijlstras rework of atomics and fallbacks. This solves two problems:
1) Compilers uninline small atomic_* static inline functions which can
expose them to instrumentation.
2) The instrumentation of atomic primitives was done at the architecture
level while composites or fallbacks were provided at the generic level.
As a result there are no uninstrumented variants of the fallbacks.
Both issues were in the way of fully isolating fragile entry code pathes
and especially the text poke int3 handler which is prone to an endless
recursion problem when anything in that code path is about to be
instrumented. This was always a problem, but got elevated due to the new
batch mode updates of tracing.
The solution is to mark the functions __always_inline and to flip the
fallback and instrumentation so the non-instrumented variants are at the
architecture level and the instrumentation is done in generic code.
The latter introduces another fallback variant which will go away once all
architectures have been moved over to arch_atomic_*.
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Merge tag 'locking-urgent-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull atomics rework from Thomas Gleixner:
"Peter Zijlstras rework of atomics and fallbacks. This solves two
problems:
1) Compilers uninline small atomic_* static inline functions which
can expose them to instrumentation.
2) The instrumentation of atomic primitives was done at the
architecture level while composites or fallbacks were provided at
the generic level. As a result there are no uninstrumented
variants of the fallbacks.
Both issues were in the way of fully isolating fragile entry code
pathes and especially the text poke int3 handler which is prone to an
endless recursion problem when anything in that code path is about to
be instrumented. This was always a problem, but got elevated due to
the new batch mode updates of tracing.
The solution is to mark the functions __always_inline and to flip the
fallback and instrumentation so the non-instrumented variants are at
the architecture level and the instrumentation is done in generic
code.
The latter introduces another fallback variant which will go away once
all architectures have been moved over to arch_atomic_*"
* tag 'locking-urgent-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/atomics: Flip fallbacks and instrumentation
asm-generic/atomic: Use __always_inline for fallback wrappers
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Linus Torvalds
|
55d728b2b0 |
arm64 merge window fixes for -rc1
- Fix SCS debug check to report max stack usage in bytes as advertised - Fix typo: CONFIG_FTRACE_WITH_REGS => CONFIG_DYNAMIC_FTRACE_WITH_REGS - Fix incorrect mask in HiSilicon L3C perf PMU driver - Fix compat vDSO compilation under some toolchain configurations - Fix false UBSAN warning from ACPI IORT parsing code - Fix booting under bootloaders that ignore TEXT_OFFSET - Annotate debug initcall function with '__init' -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl7iMe8QHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNIp5B/46kdFZ1M8VSsGxtZMzLVZBR4MWzjx1wBD3 Zzvcg5x0aLAvg+VephmQ5cBiQE78/KKISUdTKndevJ9feVhzz8kxbOhLB88o14+L Pk63p4jol8v7cJHiqcsBgSLR6MDAiY+4epsgeFA7WkO9cf529UIMO1ea2TCx0KbT tKniZghX5I485Fu2RHtZGLGBxQXqFBcDJUok3/IoZnp2SDyUxrzHPViFL9fHHzCb FNSEJijcoHfrIKiG4bPssKICmvbtcNysembDlJeyZ+5qJXqotty2M3OK+We7vPrg Ne5O/tQoeCt4lLuW40yEmpQzodNLG8D+isC6cFvspmPXSyHflSCz =EtmQ -----END PGP SIGNATURE----- Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "arm64 fixes that came in during the merge window. There will probably be more to come, but it doesn't seem like it's worth me sitting on these in the meantime. - Fix SCS debug check to report max stack usage in bytes as advertised - Fix typo: CONFIG_FTRACE_WITH_REGS => CONFIG_DYNAMIC_FTRACE_WITH_REGS - Fix incorrect mask in HiSilicon L3C perf PMU driver - Fix compat vDSO compilation under some toolchain configurations - Fix false UBSAN warning from ACPI IORT parsing code - Fix booting under bootloaders that ignore TEXT_OFFSET - Annotate debug initcall function with '__init'" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: warn on incorrect placement of the kernel by the bootloader arm64: acpi: fix UBSAN warning arm64: vdso32: add CONFIG_THUMB2_COMPAT_VDSO drivers/perf: hisi: Fix wrong value for all counters enable arm64: ftrace: Change CONFIG_FTRACE_WITH_REGS to CONFIG_DYNAMIC_FTRACE_WITH_REGS arm64: debug: mark a function as __init to save some memory scs: Report SCS usage in bytes rather than number of entries |
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Paolo Bonzini
|
49b3deaad3 |
KVM/arm64 fixes for Linux 5.8, take #1
* 32bit VM fixes:
- Fix embarassing mapping issue between AArch32 CSSELR and AArch64
ACTLR
- Add ACTLR2 support for AArch32
- Get rid of the useless ACTLR_EL1 save/restore
- Fix CP14/15 accesses for AArch32 guests on BE hosts
- Ensure that we don't loose any state when injecting a 32bit
exception when running on a VHE host
* 64bit VM fixes:
- Fix PtrAuth host saving happening in preemptible contexts
- Optimize PtrAuth lazy enable
- Drop vcpu to cpu context pointer
- Fix sparse warnings for HYP per-CPU accesses
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Merge tag 'kvmarm-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for Linux 5.8, take #1
* 32bit VM fixes:
- Fix embarassing mapping issue between AArch32 CSSELR and AArch64
ACTLR
- Add ACTLR2 support for AArch32
- Get rid of the useless ACTLR_EL1 save/restore
- Fix CP14/15 accesses for AArch32 guests on BE hosts
- Ensure that we don't loose any state when injecting a 32bit
exception when running on a VHE host
* 64bit VM fixes:
- Fix PtrAuth host saving happening in preemptible contexts
- Optimize PtrAuth lazy enable
- Drop vcpu to cpu context pointer
- Fix sparse warnings for HYP per-CPU accesses
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Ard Biesheuvel
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dd4bc60765 |
arm64: warn on incorrect placement of the kernel by the bootloader
Commit
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Peter Zijlstra
|
37f8173dd8 |
locking/atomics: Flip fallbacks and instrumentation
Currently instrumentation of atomic primitives is done at the architecture
level, while composites or fallbacks are provided at the generic level.
The result is that there are no uninstrumented variants of the
fallbacks. Since there is now need of such variants to isolate text poke
from any form of instrumentation invert this ordering.
Doing this means moving the instrumentation into the generic code as
well as having (for now) two variants of the fallbacks.
Notes:
- the various *cond_read* primitives are not proper fallbacks
and got moved into linux/atomic.c. No arch_ variants are
generated because the base primitives smp_cond_load*()
are instrumented.
- once all architectures are moved over to arch_atomic_ one of the
fallback variants can be removed and some 2300 lines reclaimed.
- atomic_{read,set}*() are no longer double-instrumented
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lkml.kernel.org/r/20200505134058.769149955@linutronix.de
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Linus Torvalds
|
4152d146ee |
Merge branch 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux
Pull READ/WRITE_ONCE rework from Will Deacon:
"This the READ_ONCE rework I've been working on for a while, which
bumps the minimum GCC version and improves code-gen on arm64 when
stack protector is enabled"
[ Side note: I'm _really_ tempted to raise the minimum gcc version to
4.9, so that we can just say that we require _Generic() support.
That would allow us to more cleanly handle a lot of the cases where we
depend on very complex macros with 'sizeof' or __builtin_choose_expr()
with __builtin_types_compatible_p() etc.
This branch has a workaround for sparse not handling _Generic(),
either, but that was already fixed in the sparse development branch,
so it's really just gcc-4.9 that we'd require. - Linus ]
* 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux:
compiler_types.h: Use unoptimized __unqual_scalar_typeof for sparse
compiler_types.h: Optimize __unqual_scalar_typeof compilation time
compiler.h: Enforce that READ_ONCE_NOCHECK() access size is sizeof(long)
compiler-types.h: Include naked type in __pick_integer_type() match
READ_ONCE: Fix comment describing 2x32-bit atomicity
gcov: Remove old GCC 3.4 support
arm64: barrier: Use '__unqual_scalar_typeof' for acquire/release macros
locking/barriers: Use '__unqual_scalar_typeof' for load-acquire macros
READ_ONCE: Drop pointer qualifiers when reading from scalar types
READ_ONCE: Enforce atomicity for {READ,WRITE}_ONCE() memory accesses
READ_ONCE: Simplify implementations of {READ,WRITE}_ONCE()
arm64: csum: Disable KASAN for do_csum()
fault_inject: Don't rely on "return value" from WRITE_ONCE()
net: tls: Avoid assigning 'const' pointer to non-const pointer
netfilter: Avoid assigning 'const' pointer to non-const pointer
compiler/gcc: Raise minimum GCC version for kernel builds to 4.8
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Linus Torvalds
|
6f630784cc |
This time around we have 4 lines of diff in the core framework, removing a
function that isn't used anymore. Otherwise the main new thing for the common
clk framework is that it is selectable in the Kconfig language now. Hopefully
this will let clk drivers and clk consumers be testable on more than the
architectures that support the clk framework. The goal is to introduce some
Kunit tests for the framework.
Outside of the core framework we have the usual set of various driver updates
and non-critical fixes. The dirstat shows that the new Baikal-T1 driver is the
largest addition this time around in terms of lines of code. After that the x86
(Intel), Qualcomm, and Mediatek drivers introduce many lines to support new or
upcoming SoCs. After that the dirstat shows the usual suspects working on their
SoC support by fixing minor bugs, correcting data and converting some of their
DT bindings to YAML.
Core:
- Allow the COMMON_CLK config to be selectable
New Drivers:
- Clk driver for Baikal-T1 SoCs
- Mediatek MT6765 clock support
- Support for Intel Agilex clks
- Add support for X1830 and X1000 Ingenic SoC clk controllers
- Add support for the new Renesas RZ/G1H (R8A7742) SoC
- Add support for Qualcomm's MSM8939 Generic Clock Controller
Updates:
- Support IDT VersaClock 5P49V5925
- Bunch of updates for HSDK clock generation unit (CGU) driver
- Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs
- Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver
- Enable supply regulators for GPU gdscs on Qualcomm SoCs
- Add support for Si5342, Si5344 and Si5345 chips
- Support custom flags in Xilinx zynq firmware
- Various small fixes to the Xilinx clk driver
- A single minor rounding fix for the legacy Allwinner clock support
- A few patches from Abel Vesa as preparation of adding audiomix clock support
on i.MX
- A couple of cleanups from Anson Huang for i.MX clk-sscg-pll and clk-pllv3
drivers
- Drop dependency on ARM64 for i.MX8M clock driver, to support aarch32 mode on
aarch64 hardware
- A series from Peng Fan to improve i.MX8M clock drivers, using composite
clock for core and bus clk slice
- Set a better parent clock for flexcan on i.MX6UL to support CiA102 defined
bit rates
- A couple changes for EMC frequency scaling on Tegra210
- Support for CPU frequency scaling on Tegra20/Tegra30
- New clk gate for CSI test pattern generator on Tegra210
- Regression fixes for Samsung exynos542x and exynos5433 SoCs
- Use of fallthrough; attribute for Samsung s3c24xx
- Updates and fixup HDMI and video clocks on Meson8b
- Fixup reset polarity on Meson8b
- Fix GPU glitch free mux switch on Meson gx and g12
- A minor fix for the currently unused suspend/resume handling on Renesas RZ/A1 and RZ/A2
- Two more conversions of Renesas DT bindings to json-schema
- Add support for the USB 2.0 clock selector on Renesas R-Car M3-W+
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This time around we have four lines of diff in the core framework,
removing a function that isn't used anymore. Otherwise the main new
thing for the common clk framework is that it is selectable in the
Kconfig language now. Hopefully this will let clk drivers and clk
consumers be testable on more than the architectures that support the
clk framework. The goal is to introduce some Kunit tests for the
framework.
Outside of the core framework we have the usual set of various driver
updates and non-critical fixes. The dirstat shows that the new
Baikal-T1 driver is the largest addition this time around in terms of
lines of code. After that the x86 (Intel), Qualcomm, and Mediatek
drivers introduce many lines to support new or upcoming SoCs. After
that the dirstat shows the usual suspects working on their SoC support
by fixing minor bugs, correcting data and converting some of their DT
bindings to YAML.
Core:
- Allow the COMMON_CLK config to be selectable
New Drivers:
- Clk driver for Baikal-T1 SoCs
- Mediatek MT6765 clock support
- Support for Intel Agilex clks
- Add support for X1830 and X1000 Ingenic SoC clk controllers
- Add support for the new Renesas RZ/G1H (R8A7742) SoC
- Add support for Qualcomm's MSM8939 Generic Clock Controller
Updates:
- Support IDT VersaClock 5P49V5925
- Bunch of updates for HSDK clock generation unit (CGU) driver
- Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs
- Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver
- Enable supply regulators for GPU gdscs on Qualcomm SoCs
- Add support for Si5342, Si5344 and Si5345 chips
- Support custom flags in Xilinx zynq firmware
- Various small fixes to the Xilinx clk driver
- A single minor rounding fix for the legacy Allwinner clock support
- A few patches from Abel Vesa as preparation of adding audiomix
clock support on i.MX
- A couple of cleanups from Anson Huang for i.MX clk-sscg-pll and
clk-pllv3 drivers
- Drop dependency on ARM64 for i.MX8M clock driver, to support
aarch32 mode on aarch64 hardware
- A series from Peng Fan to improve i.MX8M clock drivers, using
composite clock for core and bus clk slice
- Set a better parent clock for flexcan on i.MX6UL to support CiA102
defined bit rates
- A couple changes for EMC frequency scaling on Tegra210
- Support for CPU frequency scaling on Tegra20/Tegra30
- New clk gate for CSI test pattern generator on Tegra210
- Regression fixes for Samsung exynos542x and exynos5433 SoCs
- Use of fallthrough; attribute for Samsung s3c24xx
- Updates and fixup HDMI and video clocks on Meson8b
- Fixup reset polarity on Meson8b
- Fix GPU glitch free mux switch on Meson gx and g12
- A minor fix for the currently unused suspend/resume handling on
Renesas RZ/A1 and RZ/A2
- Two more conversions of Renesas DT bindings to json-schema
- Add support for the USB 2.0 clock selector on Renesas R-Car M3-W+"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (155 commits)
clk: mediatek: Remove ifr{0,1}_cfg_regs structures
clk: baikal-t1: remove redundant assignment to variable 'divider'
clk: baikal-t1: fix spelling mistake "Uncompatible" -> "Incompatible"
dt-bindings: clock: Add a missing include to MMP Audio Clock binding
dt: Add bindings for IDT VersaClock 5P49V5925
clk: vc5: Add support for IDT VersaClock 5P49V6965
clk: Add Baikal-T1 CCU Dividers driver
clk: Add Baikal-T1 CCU PLLs driver
dt-bindings: clk: Add Baikal-T1 CCU Dividers binding
dt-bindings: clk: Add Baikal-T1 CCU PLLs binding
clk: mediatek: assign the initial value to clk_init_data of mtk_mux
clk: mediatek: Add MT6765 clock support
clk: mediatek: add mt6765 clock IDs
dt-bindings: clock: mediatek: document clk bindings vcodecsys for Mediatek MT6765 SoC
dt-bindings: clock: mediatek: document clk bindings mipi0a for Mediatek MT6765 SoC
dt-bindings: clock: mediatek: document clk bindings for Mediatek MT6765 SoC
CLK: HSDK: CGU: add support for 148.5MHz clock
CLK: HSDK: CGU: support PLL bypassing
CLK: HSDK: CGU: check if PLL is bypassed first
clk: clk-si5341: Add support for the Si5345 series
...
|
||
|
Marc Zyngier
|
15c99816ed |
Merge branch 'kvm-arm64/ptrauth-fixes' into kvmarm-master/next
Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
Marc Zyngier
|
304e2989c9 |
KVM: arm64: Move hyp_symbol_addr() to kvm_asm.h
Recent refactoring of the arm64 code make it awkward to have hyp_symbol_addr() in kvm_mmu.h. Instead, move it next to its main user, which is __hyp_this_cpu_ptr(). Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
Marc Zyngier
|
0370964dd3 |
KVM: arm64: Synchronize sysreg state on injecting an AArch32 exception
On a VHE system, the EL1 state is left in the CPU most of the time, and only syncronized back to memory when vcpu_put() is called (most of the time on preemption). Which means that when injecting an exception, we'd better have a way to either: (1) write directly to the EL1 sysregs (2) synchronize the state back to memory, and do the changes there For an AArch64, we already do (1), so we are safe. Unfortunately, doing the same thing for AArch32 would be pretty invasive. Instead, we can easily implement (2) by calling the put/load architectural backends, and keep preemption disabled. We can then reload the state back into EL1. Cc: stable@vger.kernel.org Reported-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
Marc Zyngier
|
3204be4109 |
KVM: arm64: Make vcpu_cp1x() work on Big Endian hosts
AArch32 CP1x registers are overlayed on their AArch64 counterparts in the vcpu struct. This leads to an interesting problem as they are stored in their CPU-local format, and thus a CP1x register doesn't "hit" the lower 32bit portion of the AArch64 register on a BE host. To workaround this unfortunate situation, introduce a bias trick in the vcpu_cp1x() accessors which picks the correct half of the 64bit register. Cc: stable@vger.kernel.org Reported-by: James Morse <james.morse@arm.com> Tested-by: James Morse <james.morse@arm.com> Acked-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
Nick Desaulniers
|
a194c33f45 |
arm64: acpi: fix UBSAN warning
Will reported a UBSAN warning: UBSAN: null-ptr-deref in arch/arm64/kernel/smp.c:596:6 member access within null pointer of type 'struct acpi_madt_generic_interrupt' CPU: 0 PID: 0 Comm: swapper Not tainted 5.7.0-rc6-00124-g96bc42ff0a82 #1 Call trace: dump_backtrace+0x0/0x384 show_stack+0x28/0x38 dump_stack+0xec/0x174 handle_null_ptr_deref+0x134/0x174 __ubsan_handle_type_mismatch_v1+0x84/0xa4 acpi_parse_gic_cpu_interface+0x60/0xe8 acpi_parse_entries_array+0x288/0x498 acpi_table_parse_entries_array+0x178/0x1b4 acpi_table_parse_madt+0xa4/0x110 acpi_parse_and_init_cpus+0x38/0x100 smp_init_cpus+0x74/0x258 setup_arch+0x350/0x3ec start_kernel+0x98/0x6f4 This is from the use of the ACPI_OFFSET in arch/arm64/include/asm/acpi.h. Replace its use with offsetof from include/linux/stddef.h which should implement the same logic using __builtin_offsetof, so that UBSAN wont warn. Reported-by: Will Deacon <will@kernel.org> Suggested-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Jeremy Linton <jeremy.linton@arm.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/lkml/20200521100952.GA5360@willie-the-truck/ Link: https://lore.kernel.org/r/20200608203818.189423-1-ndesaulniers@google.com Signed-off-by: Will Deacon <will@kernel.org> |
||
|
Nick Desaulniers
|
625412c210 |
arm64: vdso32: add CONFIG_THUMB2_COMPAT_VDSO
Allow the compat vdso (32b) to be compiled as either THUMB2 (default) or
ARM.
For THUMB2, the register r7 is reserved for the frame pointer, but
code in arch/arm64/include/asm/vdso/compat_gettimeofday.h
uses r7. Explicitly set -fomit-frame-pointer, since unwinding through
interworked THUMB2 and ARM is unreliable anyways. See also how
CONFIG_UNWINDER_FRAME_POINTER cannot be selected for
CONFIG_THUMB2_KERNEL for ARCH=arm.
This also helps toolchains that differ in their implicit value if the
choice of -f{no-}omit-frame-pointer is left unspecified, to not error on
the use of r7.
2019 Q4 ARM AAPCS seeks to standardize the use of r11 as the reserved
frame pointer register, but no production compiler that can compile the
Linux kernel currently implements this. We're actively discussing such
a transition with ARM toolchain developers currently.
Reported-by: Luis Lozano <llozano@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Manoj Gupta <manojgupta@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Stephen Boyd <swboyd@google.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Link: https://static.docs.arm.com/ihi0042/i/aapcs32.pdf
Link: https://bugs.chromium.org/p/chromium/issues/detail?id=1084372
Link: https://lore.kernel.org/r/20200608205711.109418-1-ndesaulniers@google.com
Signed-off-by: Will Deacon <will@kernel.org>
|
||
|
Michel Lespinasse
|
89154dd531 |
mmap locking API: convert mmap_sem call sites missed by coccinelle
Convert the last few remaining mmap_sem rwsem calls to use the new mmap locking API. These were missed by coccinelle for some reason (I think coccinelle does not support some of the preprocessor constructs in these files ?) [akpm@linux-foundation.org: convert linux-next leftovers] [akpm@linux-foundation.org: more linux-next leftovers] [akpm@linux-foundation.org: more linux-next leftovers] Signed-off-by: Michel Lespinasse <walken@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Liam Howlett <Liam.Howlett@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ying Han <yinghan@google.com> Link: http://lkml.kernel.org/r/20200520052908.204642-6-walken@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Michel Lespinasse
|
d8ed45c5dc |
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
This change converts the existing mmap_sem rwsem calls to use the new mmap locking API instead. The change is generated using coccinelle with the following rule: // spatch --sp-file mmap_lock_api.cocci --in-place --include-headers --dir . @@ expression mm; @@ ( -init_rwsem +mmap_init_lock | -down_write +mmap_write_lock | -down_write_killable +mmap_write_lock_killable | -down_write_trylock +mmap_write_trylock | -up_write +mmap_write_unlock | -downgrade_write +mmap_write_downgrade | -down_read +mmap_read_lock | -down_read_killable +mmap_read_lock_killable | -down_read_trylock +mmap_read_trylock | -up_read +mmap_read_unlock ) -(&mm->mmap_sem) +(mm) Signed-off-by: Michel Lespinasse <walken@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Liam Howlett <Liam.Howlett@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ying Han <yinghan@google.com> Link: http://lkml.kernel.org/r/20200520052908.204642-5-walken@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Mike Rapoport
|
974b9b2c68 |
mm: consolidate pte_index() and pte_offset_*() definitions
All architectures define pte_index() as (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1) and all architectures define pte_offset_kernel() as an entry in the array of PTEs indexed by the pte_index(). For the most architectures the pte_offset_kernel() implementation relies on the availability of pmd_page_vaddr() that converts a PMD entry value to the virtual address of the page containing PTEs array. Let's move x86 definitions of the PTE accessors to the generic place in <linux/pgtable.h> and then simply drop the respective definitions from the other architectures. The architectures that didn't provide pmd_page_vaddr() are updated to have that defined. The generic implementation of pte_offset_kernel() can be overridden by an architecture and alpha makes use of this because it has special ordering requirements for its version of pte_offset_kernel(). [rppt@linux.ibm.com: v2] Link: http://lkml.kernel.org/r/20200514170327.31389-11-rppt@kernel.org [rppt@linux.ibm.com: update] Link: http://lkml.kernel.org/r/20200514170327.31389-12-rppt@kernel.org [rppt@linux.ibm.com: update] Link: http://lkml.kernel.org/r/20200514170327.31389-13-rppt@kernel.org [akpm@linux-foundation.org: fix x86 warning] [sfr@canb.auug.org.au: fix powerpc build] Link: http://lkml.kernel.org/r/20200607153443.GB738695@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200514170327.31389-10-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
|
65fddcfca8 |
mm: reorder includes after introduction of linux/pgtable.h
The replacement of <asm/pgrable.h> with <linux/pgtable.h> made the include
of the latter in the middle of asm includes. Fix this up with the aid of
the below script and manual adjustments here and there.
import sys
import re
if len(sys.argv) is not 3:
print "USAGE: %s <file> <header>" % (sys.argv[0])
sys.exit(1)
hdr_to_move="#include <linux/%s>" % sys.argv[2]
moved = False
in_hdrs = False
with open(sys.argv[1], "r") as f:
lines = f.readlines()
for _line in lines:
line = _line.rstrip('
')
if line == hdr_to_move:
continue
if line.startswith("#include <linux/"):
in_hdrs = True
elif not moved and in_hdrs:
moved = True
print hdr_to_move
print line
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200514170327.31389-4-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Mike Rapoport
|
ca5999fde0 |
mm: introduce include/linux/pgtable.h
The include/linux/pgtable.h is going to be the home of generic page table manipulation functions. Start with moving asm-generic/pgtable.h to include/linux/pgtable.h and make the latter include asm/pgtable.h. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200514170327.31389-3-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Mike Rapoport
|
e31cf2f4ca |
mm: don't include asm/pgtable.h if linux/mm.h is already included
Patch series "mm: consolidate definitions of page table accessors", v2.
The low level page table accessors (pXY_index(), pXY_offset()) are
duplicated across all architectures and sometimes more than once. For
instance, we have 31 definition of pgd_offset() for 25 supported
architectures.
Most of these definitions are actually identical and typically it boils
down to, e.g.
static inline unsigned long pmd_index(unsigned long address)
{
return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
}
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
{
return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address);
}
These definitions can be shared among 90% of the arches provided
XYZ_SHIFT, PTRS_PER_XYZ and xyz_page_vaddr() are defined.
For architectures that really need a custom version there is always
possibility to override the generic version with the usual ifdefs magic.
These patches introduce include/linux/pgtable.h that replaces
include/asm-generic/pgtable.h and add the definitions of the page table
accessors to the new header.
This patch (of 12):
The linux/mm.h header includes <asm/pgtable.h> to allow inlining of the
functions involving page table manipulations, e.g. pte_alloc() and
pmd_alloc(). So, there is no point to explicitly include <asm/pgtable.h>
in the files that include <linux/mm.h>.
The include statements in such cases are remove with a simple loop:
for f in $(git grep -l "include <linux/mm.h>") ; do
sed -i -e '/include <asm\/pgtable.h>/ d' $f
done
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200514170327.31389-1-rppt@kernel.org
Link: http://lkml.kernel.org/r/20200514170327.31389-2-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Dmitry Safonov
|
9cb8f069de |
kernel: rename show_stack_loglvl() => show_stack()
Now the last users of show_stack() got converted to use an explicit log level, show_stack_loglvl() can drop it's redundant suffix and become once again well known show_stack(). Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20200418201944.482088-51-dima@arista.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Dmitry Safonov
|
c0fe096a8a |
arm64: add show_stack_loglvl()
Currently, the log-level of show_stack() depends on a platform realization. It creates situations where the headers are printed with lower log level or higher than the stacktrace (depending on a platform or user). Furthermore, it forces the logic decision from user to an architecture side. In result, some users as sysrq/kdb/etc are doing tricks with temporary rising console_loglevel while printing their messages. And in result it not only may print unwanted messages from other CPUs, but also omit printing at all in the unlucky case where the printk() was deferred. Introducing log-level parameter and KERN_UNSUPPRESSED [1] seems an easier approach than introducing more printk buffers. Also, it will consolidate printings with headers. Introduce show_stack_loglvl(), that eventually will substitute show_stack(). [1]: https://lore.kernel.org/lkml/20190528002412.1625-1-dima@arista.com/T/#u Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Will Deacon <will@kernel.org> Link: http://lkml.kernel.org/r/20200418201944.482088-11-dima@arista.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Dmitry Safonov
|
c76898373f |
arm64: add loglvl to dump_backtrace()
Currently, the log-level of show_stack() depends on a platform realization. It creates situations where the headers are printed with lower log level or higher than the stacktrace (depending on a platform or user). Furthermore, it forces the logic decision from user to an architecture side. In result, some users as sysrq/kdb/etc are doing tricks with temporary rising console_loglevel while printing their messages. And in result it not only may print unwanted messages from other CPUs, but also omit printing at all in the unlucky case where the printk() was deferred. Introducing log-level parameter and KERN_UNSUPPRESSED [1] seems an easier approach than introducing more printk buffers. Also, it will consolidate printings with headers. Add log level argument to dump_backtrace() as a preparation for introducing show_stack_loglvl(). [1]: https://lore.kernel.org/lkml/20190528002412.1625-1-dima@arista.com/T/#u Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Will Deacon <will@kernel.org> Link: http://lkml.kernel.org/r/20200418201944.482088-10-dima@arista.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Marc Zyngier
|
07da1ffaa1 |
KVM: arm64: Remove host_cpu_context member from vcpu structure
For very long, we have kept this pointer back to the per-cpu host state, despite having working per-cpu accessors at EL2 for some time now. Recent investigations have shown that this pointer is easy to abuse in preemptible context, which is a sure sign that it would better be gone. Not to mention that a per-cpu pointer is faster to access at all times. Reported-by: Andrew Scull <ascull@google.com> Acked-by: Mark Rutland <mark.rutland@arm.com Reviewed-by: Andrew Scull <ascull@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
Marc Zyngier
|
b990d37fdf |
KVM: arm64: Stop sparse from moaning at __hyp_this_cpu_ptr
Sparse complains that __hyp_this_cpu_ptr() returns something that is flagged noderef and not in the correct address space (both being the result of the __percpu annotation). Pretend that __hyp_this_cpu_ptr() knows what it is doing by forcefully casting the pointer with __kernel __force. Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
Marc Zyngier
|
29eb5a3c57 |
KVM: arm64: Handle PtrAuth traps early
The current way we deal with PtrAuth is a bit heavy handed: - We forcefully save the host's keys on each vcpu_load() - Handling the PtrAuth trap forces us to go all the way back to the exit handling code to just set the HCR bits Overall, this is pretty cumbersome. A better approach would be to handle it the same way we deal with the FPSIMD registers: - On vcpu_load() disable PtrAuth for the guest - On first use, save the host's keys, enable PtrAuth in the guest Crucially, this can happen as a fixup, which is done very early on exit. We can then reenter the guest immediately without leaving the hypervisor role. Another thing is that it simplify the rest of the host handling: exiting all the way to the host means that the only possible outcome for this trap is to inject an UNDEF. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
Marc Zyngier
|
ef3e40a7ea |
KVM: arm64: Save the host's PtrAuth keys in non-preemptible context
When using the PtrAuth feature in a guest, we need to save the host's keys before allowing the guest to program them. For that, we dump them in a per-CPU data structure (the so called host context). But both call sites that do this are in preemptible context, which may end up in disaster should the vcpu thread get preempted before reentering the guest. Instead, save the keys eagerly on each vcpu_load(). This has an increased overhead, but is at least safe. Cc: stable@vger.kernel.org Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> |
||
|
James Morse
|
e8679fedd0 |
KVM: arm64: Stop save/restoring ACTLR_EL1
KVM sets HCR_EL2.TACR via HCR_GUEST_FLAGS. This means ACTLR* accesses from the guest are always trapped, and always return the value in the sys_regs array. The guest can't change the value of these registers, so we are save restoring the reset value, which came from the host. Stop save/restoring this register. Keep the storage for this register in sys_regs[] as this is how the value is exposed to user-space, removing it would break migration. Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200529150656.7339-4-james.morse@arm.com |
||
|
James Morse
|
ef5a294be8 |
KVM: arm64: Add emulation for 32bit guests accessing ACTLR2
ACTLR_EL1 is a 64bit register while the 32bit ACTLR is obviously 32bit. For 32bit software, the extra bits are accessible via ACTLR2... which KVM doesn't emulate. Suggested-by: Marc Zyngier <maz@kernel.org> Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200529150656.7339-3-james.morse@arm.com |
||
|
James Morse
|
7c582bf4ed |
KVM: arm64: Stop writing aarch32's CSSELR into ACTLR
aarch32 has pairs of registers to access the high and low parts of 64bit
registers. KVM has a union of 64bit sys_regs[] and 32bit copro[]. The
32bit accessors read the high or low part of the 64bit sys_reg[] value
through the union.
Both sys_reg_descs[] and cp15_regs[] list access_csselr() as the accessor
for CSSELR{,_EL1}. access_csselr() is only aware of the 64bit sys_regs[],
and expects r->reg to be 'CSSELR_EL1' in the enum, index 2 of the 64bit
array.
cp15_regs[] uses the 32bit copro[] alias of sys_regs[]. Here CSSELR is
c0_CSSELR which is the same location in sys_reg[]. r->reg is 'c0_CSSELR',
index 4 in the 32bit array.
access_csselr() uses the 32bit r->reg value to access the 64bit array,
so reads and write the wrong value. sys_regs[4], is ACTLR_EL1, which
is subsequently save/restored when we enter the guest.
ACTLR_EL1 is supposed to be read-only for the guest. This register
only affects execution at EL1, and the host's value is restored before
we return to host EL1.
Convert the 32bit register index back to the 64bit version.
Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200529150656.7339-2-james.morse@arm.com
|
||
|
Linus Torvalds
|
4e3a16ee91 |
IOMMU Updates for Linux v5.8
Including:
- A big part of this is a change in how devices get connected to
IOMMUs in the core code. It contains the change from the old
add_device()/remove_device() to the new
probe_device()/release_device() call-backs. As a result
functionality that was previously in the IOMMU drivers has
been moved to the IOMMU core code, including IOMMU group
allocation for each device.
The reason for this change was to get more robust allocation
of default domains for the iommu groups.
A couple of fixes were necessary after this was merged into
the IOMMU tree, but there are no known bugs left. The last fix
is applied on-top of the merge commit for the topic branches.
- Removal of the driver private domain handling in the Intel
VT-d driver. This was fragile code and I am glad it is gone
now.
- More Intel VT-d updates from Lu Baolu:
- Nested Shared Virtual Addressing (SVA) support to the
Intel VT-d driver
- Replacement of the Intel SVM interfaces to the common
IOMMU SVA API
- SVA Page Request draining support
- ARM-SMMU Updates from Will:
- Avoid mapping reserved MMIO space on SMMUv3, so that
it can be claimed by the PMU driver
- Use xarray to manage ASIDs on SMMUv3
- Reword confusing shutdown message
- DT compatible string updates
- Allow implementations to override the default domain
type
- A new IOMMU driver for the Allwinner Sun50i platform
- Support for ATS gets disabled for untrusted devices (like
Thunderbolt devices). This includes a PCI patch, acked by
Bjorn.
- Some cleanups to the AMD IOMMU driver to make more use of
IOMMU core features.
- Unification of some printk formats in the Intel and AMD IOMMU
drivers and in the IOVA code.
- Updates for DT bindings
- A number of smaller fixes and cleanups.
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Merge tag 'iommu-updates-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
"A big part of this is a change in how devices get connected to IOMMUs
in the core code. It contains the change from the old add_device() /
remove_device() to the new probe_device() / release_device()
call-backs.
As a result functionality that was previously in the IOMMU drivers has
been moved to the IOMMU core code, including IOMMU group allocation
for each device. The reason for this change was to get more robust
allocation of default domains for the iommu groups.
A couple of fixes were necessary after this was merged into the IOMMU
tree, but there are no known bugs left. The last fix is applied on-top
of the merge commit for the topic branches.
Other than that change, we have:
- Removal of the driver private domain handling in the Intel VT-d
driver. This was fragile code and I am glad it is gone now.
- More Intel VT-d updates from Lu Baolu:
- Nested Shared Virtual Addressing (SVA) support to the Intel VT-d
driver
- Replacement of the Intel SVM interfaces to the common IOMMU SVA
API
- SVA Page Request draining support
- ARM-SMMU Updates from Will:
- Avoid mapping reserved MMIO space on SMMUv3, so that it can be
claimed by the PMU driver
- Use xarray to manage ASIDs on SMMUv3
- Reword confusing shutdown message
- DT compatible string updates
- Allow implementations to override the default domain type
- A new IOMMU driver for the Allwinner Sun50i platform
- Support for ATS gets disabled for untrusted devices (like
Thunderbolt devices). This includes a PCI patch, acked by Bjorn.
- Some cleanups to the AMD IOMMU driver to make more use of IOMMU
core features.
- Unification of some printk formats in the Intel and AMD IOMMU
drivers and in the IOVA code.
- Updates for DT bindings
- A number of smaller fixes and cleanups.
* tag 'iommu-updates-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (109 commits)
iommu: Check for deferred attach in iommu_group_do_dma_attach()
iommu/amd: Remove redundant devid checks
iommu/amd: Store dev_data as device iommu private data
iommu/amd: Merge private header files
iommu/amd: Remove PD_DMA_OPS_MASK
iommu/amd: Consolidate domain allocation/freeing
iommu/amd: Free page-table in protection_domain_free()
iommu/amd: Allocate page-table in protection_domain_init()
iommu/amd: Let free_pagetable() not rely on domain->pt_root
iommu/amd: Unexport get_dev_data()
iommu/vt-d: Fix compile warning
iommu/vt-d: Remove real DMA lookup in find_domain
iommu/vt-d: Allocate domain info for real DMA sub-devices
iommu/vt-d: Only clear real DMA device's context entries
iommu: Remove iommu_sva_ops::mm_exit()
uacce: Remove mm_exit() op
iommu/sun50i: Constify sun50i_iommu_ops
iommu/hyper-v: Constify hyperv_ir_domain_ops
iommu/vt-d: Use pci_ats_supported()
iommu/arm-smmu-v3: Use pci_ats_supported()
...
|
||
|
Christoph Hellwig
|
a7ba121215 |
arm64: use asm-generic/cacheflush.h
ARM64 needs almost no cache flushing routines of its own. Rely on asm-generic/cacheflush.h for the defaults. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Link: http://lkml.kernel.org/r/20200515143646.3857579-10-hch@lst.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Joe Perches
|
91970bef48 |
arm64: ftrace: Change CONFIG_FTRACE_WITH_REGS to CONFIG_DYNAMIC_FTRACE_WITH_REGS
CONFIG_FTRACE_WITH_REGS does not exist as a Kconfig symbol.
Fixes:
|
||
|
Linus Torvalds
|
9aa900c809 |
Char/Misc driver patches for 5.8-rc1
Here is the large set of char/misc driver patches for 5.8-rc1 Included in here are: - habanalabs driver updates, loads - mhi bus driver updates - extcon driver updates - clk driver updates (approved by the clock maintainer) - firmware driver updates - fpga driver updates - gnss driver updates - coresight driver updates - interconnect driver updates - parport driver updates (it's still alive!) - nvmem driver updates - soundwire driver updates - visorbus driver updates - w1 driver updates - various misc driver updates In short, loads of different driver subsystem updates along with the drivers as well. All have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXtzkHw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yldOwCgus/DgpnI1UL4z+NdBxJrAXtkPmgAn2sgTUea i5RblCmcVMqvHaGtYkY+ =tScN -----END PGP SIGNATURE----- Merge tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc driver patches for 5.8-rc1 Included in here are: - habanalabs driver updates, loads - mhi bus driver updates - extcon driver updates - clk driver updates (approved by the clock maintainer) - firmware driver updates - fpga driver updates - gnss driver updates - coresight driver updates - interconnect driver updates - parport driver updates (it's still alive!) - nvmem driver updates - soundwire driver updates - visorbus driver updates - w1 driver updates - various misc driver updates In short, loads of different driver subsystem updates along with the drivers as well. All have been in linux-next for a while with no reported issues" * tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (233 commits) habanalabs: correctly cast u64 to void* habanalabs: initialize variable to default value extcon: arizona: Fix runtime PM imbalance on error extcon: max14577: Add proper dt-compatible strings extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()' extcon: remove redundant assignment to variable idx w1: omap-hdq: print dev_err if irq flags are not cleared w1: omap-hdq: fix interrupt handling which did show spurious timeouts w1: omap-hdq: fix return value to be -1 if there is a timeout w1: omap-hdq: cleanup to add missing newline for some dev_dbg /dev/mem: Revoke mappings when a driver claims the region misc: xilinx-sdfec: convert get_user_pages() --> pin_user_pages() misc: xilinx-sdfec: cleanup return value in xsdfec_table_write() misc: xilinx-sdfec: improve get_user_pages_fast() error handling nvmem: qfprom: remove incorrect write support habanalabs: handle MMU cache invalidation timeout habanalabs: don't allow hard reset with open processes habanalabs: GAUDI does not support soft-reset habanalabs: add print for soft reset due to event habanalabs: improve MMU cache invalidation code ... |
||
|
Linus Torvalds
|
e611c0fe31 |
USB/PHY driver updates for 5.8-rc1
Here are the large set of USB and PHY driver updates for 5.8-rc1. Nothing huge, just lots of little things: - USB gadget fixes and additions all over the place - new PHY drivers - PHY driver fixes and updates - XHCI driver updates - musb driver updates - more USB-serial driver ids added - various USB quirks added - thunderbolt minor updates and fixes - typec updates and additions Full details are in the shortlog. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXtzqVA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynftwCfeanyI6TR5AdfJVZN50B6/ySvVwcAn07i9VRX tnt2kz0UqReYpLt0wyJ7 =YP7o -----END PGP SIGNATURE----- Merge tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/PHY driver updates from Greg KH: "Here are the large set of USB and PHY driver updates for 5.8-rc1. Nothing huge, just lots of little things: - USB gadget fixes and additions all over the place - new PHY drivers - PHY driver fixes and updates - XHCI driver updates - musb driver updates - more USB-serial driver ids added - various USB quirks added - thunderbolt minor updates and fixes - typec updates and additions All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (245 commits) usb: dwc3: meson-g12a: fix USB2 PHY initialization on G12A and A1 SoCs usb: dwc3: meson-g12a: fix error path when fetching the reset line fails Revert "dt-bindings: usb: qcom,dwc3: Convert USB DWC3 bindings" Revert "dt-bindings: usb: qcom,dwc3: Add compatible for SC7180" Revert "dt-bindings: usb: qcom,dwc3: Introduce interconnect properties for Qualcomm DWC3 driver" USB: serial: ch341: fix lockup of devices with limited prescaler USB: serial: ch341: add basis for quirk detection CDC-ACM: heed quirk also in error handling USB: serial: option: add Telit LE910C1-EUX compositions usb: musb: Fix runtime PM imbalance on error usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set usb: musb: mediatek: add reset FADDR to zero in reset interrupt handle usb: musb: use true for 'use_dma' usb: musb: start session in resume for host port usb: musb: return -ESHUTDOWN in urb when three-strikes error happened USB: serial: qcserial: add DW5816e QDL support thunderbolt: Add trivial .shutdown usb: dwc3: keystone: Turn on USB3 PHY before controller dt-bindings: usb: ti,keystone-dwc3.yaml: Add USB3.0 PHY property dt-bindings: usb: convert keystone-usb.txt to YAML ... |
||
|
Linus Torvalds
|
cff11abeca |
Kbuild updates for v5.8
- fix warnings in 'make clean' for ARCH=um, hexagon, h8300, unicore32
- ensure to rebuild all objects when the compiler is upgraded
- exclude system headers from dependency tracking and fixdep processing
- fix potential bit-size mismatch between the kernel and BPF user-mode
helper
- add the new syntax 'userprogs' to build user-space programs for the
target architecture (the same arch as the kernel)
- compile user-space sample code under samples/ for the target arch
instead of the host arch
- make headers_install fail if a CONFIG option is leaked to user-space
- sanitize the output format of scripts/checkstack.pl
- handle ARM 'push' instruction in scripts/checkstack.pl
- error out before modpost if a module name conflict is found
- error out when multiple directories are passed to M= because this
feature is broken for a long time
- add CONFIG_DEBUG_INFO_COMPRESSED to support compressed debug info
- a lot of cleanups of modpost
- dump vmlinux symbols out into vmlinux.symvers, and reuse it in the
second pass of modpost
- do not run the second pass of modpost if nothing in modules is updated
- install modules.builtin(.modinfo) by 'make install' as well as by
'make modules_install' because it is useful even when CONFIG_MODULES=n
- add new command line variables, GZIP, BZIP2, LZOP, LZMA, LZ4, and XZ
to allow users to use alternatives such as pigz, pbzip2, etc.
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Merge tag 'kbuild-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- fix warnings in 'make clean' for ARCH=um, hexagon, h8300, unicore32
- ensure to rebuild all objects when the compiler is upgraded
- exclude system headers from dependency tracking and fixdep processing
- fix potential bit-size mismatch between the kernel and BPF user-mode
helper
- add the new syntax 'userprogs' to build user-space programs for the
target architecture (the same arch as the kernel)
- compile user-space sample code under samples/ for the target arch
instead of the host arch
- make headers_install fail if a CONFIG option is leaked to user-space
- sanitize the output format of scripts/checkstack.pl
- handle ARM 'push' instruction in scripts/checkstack.pl
- error out before modpost if a module name conflict is found
- error out when multiple directories are passed to M= because this
feature is broken for a long time
- add CONFIG_DEBUG_INFO_COMPRESSED to support compressed debug info
- a lot of cleanups of modpost
- dump vmlinux symbols out into vmlinux.symvers, and reuse it in the
second pass of modpost
- do not run the second pass of modpost if nothing in modules is
updated
- install modules.builtin(.modinfo) by 'make install' as well as by
'make modules_install' because it is useful even when
CONFIG_MODULES=n
- add new command line variables, GZIP, BZIP2, LZOP, LZMA, LZ4, and XZ
to allow users to use alternatives such as pigz, pbzip2, etc.
* tag 'kbuild-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (96 commits)
kbuild: add variables for compression tools
Makefile: install modules.builtin even if CONFIG_MODULES=n
mksysmap: Fix the mismatch of '.L' symbols in System.map
kbuild: doc: rename LDFLAGS to KBUILD_LDFLAGS
modpost: change elf_info->size to size_t
modpost: remove is_vmlinux() helper
modpost: strip .o from modname before calling new_module()
modpost: set have_vmlinux in new_module()
modpost: remove mod->skip struct member
modpost: add mod->is_vmlinux struct member
modpost: remove is_vmlinux() call in check_for_{gpl_usage,unused}()
modpost: remove mod->is_dot_o struct member
modpost: move -d option in scripts/Makefile.modpost
modpost: remove -s option
modpost: remove get_next_text() and make {grab,release_}file static
modpost: use read_text_file() and get_line() for reading text files
modpost: avoid false-positive file open error
modpost: fix potential mmap'ed file overrun in get_src_version()
modpost: add read_text_file() and get_line() helpers
modpost: do not call get_modinfo() for vmlinux(.o)
...
|
||
|
Linus Torvalds
|
3925c3bbdf |
pci-v5.8-changes
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Merge tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Program MPS for RCiEP devices (Ashok Raj)
- Fix pci_register_host_bridge() device_register() error handling
(Rob Herring)
- Fix pci_host_bridge struct device release/free handling (Rob
Herring)
Resource management:
- Allow resizing BARs for devices on root bus (Ard Biesheuvel)
Power management:
- Reduce Thunderbolt resume time by working around devices that don't
support DLL Link Active reporting (Mika Westerberg)
- Work around a Pericom USB controller OHCI/EHCI PME# defect
(Kai-Heng Feng)
Virtualization:
- Add ACS quirk for Intel Root Complex Integrated Endpoints (Ashok
Raj)
- Avoid FLR for AMD Starship USB 3.0 (Kevin Buettner)
- Avoid FLR for AMD Matisse HD Audio & USB 3.0 (Marcos Scriven)
Error handling:
- Use only _OSC (not HEST FIRMWARE_FIRST) to determine AER ownership
(Alexandru Gagniuc, Kuppuswamy Sathyanarayanan)
- Reduce verbosity by logging only ACPI_NOTIFY_DISCONNECT_RECOVER
events (Kuppuswamy Sathyanarayanan)
- Don't enable AER by default in Kconfig (Bjorn Helgaas)
Peer-to-peer DMA:
- Add AMD Zen Raven and Renoir Root Ports to whitelist (Alex Deucher)
ASPM:
- Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges (Kai-Heng Feng)
Endpoint framework:
- Fix DMA channel release in test (Kunihiko Hayashi)
- Add page size as argument to pci_epc_mem_init() (Lad Prabhakar)
- Add support to handle multiple base for mapping outbound memory
(Lad Prabhakar)
Generic host bridge driver:
- Support building as module (Rob Herring)
- Eliminate pci_host_common_probe wrappers (Rob Herring)
Amlogic Meson PCIe controller driver:
- Don't use FAST_LINK_MODE to set up link (Marc Zyngier)
Broadcom STB PCIe controller driver:
- Disable ASPM L0s if 'aspm-no-l0s' in DT (Jim Quinlan)
- Fix clk_put() error (Jim Quinlan)
- Fix window register offset (Jim Quinlan)
- Assert fundamental reset on initialization (Nicolas Saenz Julienne)
- Add notify xHCI reset property (Nicolas Saenz Julienne)
- Add init routine for Raspberry Pi 4 VL805 USB controller (Nicolas
Saenz Julienne)
- Sync with Raspberry Pi 4 firmware for VL805 initialization (Nicolas
Saenz Julienne)
Cadence PCIe controller driver:
- Remove "cdns,max-outbound-regions" DT property (replaced by
"ranges") (Kishon Vijay Abraham I)
- Read 32-bit (not 16-bit) Vendor ID/Device ID property from DT
(Kishon Vijay Abraham I)
Marvell Aardvark PCIe controller driver:
- Improve link training (Marek Behún)
- Add PHY support (Marek Behún)
- Add "phys", "max-link-speed", "reset-gpios" to dt-binding (Marek
Behún)
- Train link immediately after enabling training to work around
detection issues with some cards (Pali Rohár)
- Issue PERST via GPIO to work around detection issues (Pali Rohár)
- Don't blindly enable ASPM L0s (Pali Rohár)
- Replace custom macros by standard linux/pci_regs.h macros (Pali
Rohár)
Microsoft Hyper-V host bridge driver:
- Fix probe failure path to release resource (Wei Hu)
- Retry PCI bus D0 entry on invalid device state for kdump (Wei Hu)
Renesas R-Car PCIe controller driver:
- Fix incorrect programming of OB windows (Andrew Murray)
- Add suspend/resume (Kazufumi Ikeda)
- Rename pcie-rcar.c to pcie-rcar-host.c (Lad Prabhakar)
- Add endpoint controller driver (Lad Prabhakar)
- Fix PCIEPAMR mask calculation (Lad Prabhakar)
- Add r8a77961 to DT binding (Yoshihiro Shimoda)
Socionext UniPhier Pro5 controller driver:
- Add endpoint controller driver (Kunihiko Hayashi)
Synopsys DesignWare PCIe controller driver:
- Program outbound ATU upper limit register (Alan Mikhak)
- Fix inner MSI IRQ domain registration (Marc Zyngier)
Miscellaneous:
- Check for platform_get_irq() failure consistently (negative return
means failure) (Aman Sharma)
- Fix several runtime PM get/put imbalances (Dinghao Liu)
- Use flexible-array and struct_size() helpers for code cleanup
(Gustavo A. R. Silva)
- Update & fix issues in bridge emulation of PCIe registers (Jon
Derrick)
- Add macros for bridge window names (PCI_BRIDGE_IO_WINDOW, etc)
(Krzysztof Wilczyński)
- Work around Intel PCH MROMs that have invalid BARs (Xiaochun Lee)"
* tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (100 commits)
PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver
PCI: Add ACS quirk for Intel Root Complex Integrated Endpoints
PCI/DPC: Print IRQ number used by port
PCI/AER: Use "aer" variable for capability offset
PCI/AER: Remove redundant dev->aer_cap checks
PCI/AER: Remove redundant pci_is_pcie() checks
PCI/AER: Remove HEST/FIRMWARE_FIRST parsing for AER ownership
PCI: tegra: Fix runtime PM imbalance on error
PCI: vmd: Filter resource type bits from shadow register
PCI: tegra194: Fix runtime PM imbalance on error
dt-bindings: PCI: Add UniPhier PCIe endpoint controller description
PCI: hv: Use struct_size() helper
PCI: Rename _DSM constants to align with spec
PCI: Avoid FLR for AMD Starship USB 3.0
PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0
x86/PCI: Drop unused xen_register_pirq() gsi_override parameter
PCI: dwc: Use private data pointer of "struct irq_domain" to get pcie_port
PCI: amlogic: meson: Don't use FAST_LINK_MODE to set up link
PCI: dwc: Fix inner MSI IRQ domain registration
PCI: dwc: pci-dra7xx: Use devm_platform_ioremap_resource_byname()
...
|
||
|
Linus Torvalds
|
ac7b34218a |
Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK
now that toolchains long support PT_GNU_STACK marking and there's no need anymore to force modern programs into having all its user mappings executable instead of only the stack and the PROT_EXEC ones. Disable that automatic READ_IMPLIES_EXEC forcing on x86-64 and arm64. Add tables documenting how READ_IMPLIES_EXEC is handled on x86-64, arm and arm64. By Kees Cook. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAl7YFDIACgkQEsHwGGHe VUpnzxAAmXdODNOb1gGQvt+KJthkfkWh2A2R+tWxCRmFtjFTcS/eRxFfvGu2KmFY 2b2AcJzuJeGjs7WIvQU0pkR2p6STyzuSBBLj5J/OJR9FonQ4pPah38df4A0fOgI6 GJyJV9Ie7O2Ph1w2iLOeWBdmR90CnYuabxsfipgOL+sjHlEI0RqLSDgARRQsxTEj KM+JVAFD472KcUJnQKBVBOD1I1DOVBGu12r3y6chgsOtwshLNW/cO15cDgYrgnJZ OlR3EIUukCEEc1KQzUCihsypLuGfrmdq1MyPN8CME8gLfmOBsJyGRDhvmdbS+Wxh kAMYQ9BuNP/jMVtN950qV0qUtnZCeIPlj1sDb9STWz5fInLsXDSCS0eYi32yBFi+ 7yviVU95ml6Mda1Qd5axItTHFAjKIn0qfMZszkLOtUszIzNinCgH7t3ThoXeV223 BqrpntRwiGZVpXDdcp0QFYBsWSMchR47yuhL8pB4SWxQzgNzXqAEg2KFQU0XMDKp pdia9IzUozg/BrjG5cnRfZhq2lBra7fy3Dn6fw5+NR5vqhka0Wr8L6dyM1Rj74EU HPk5bRXgt0OIiIFPi4139ApY7k+8j2nbf12qUchue1ZVVKzbvK996FDXbrGgW3zD Wis1wglxB9urSUTmC1bMOeyOd+gebo3i/ACAjgSo+EbDN7qW0Qw= =2L7y -----END PGP SIGNATURE----- Merge tag 'core_core_updates_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull READ_IMPLIES_EXEC changes from Borislav Petkov: "Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK now that toolchains long support PT_GNU_STACK marking and there's no need anymore to force modern programs into having all its user mappings executable instead of only the stack and the PROT_EXEC ones. Disable that automatic READ_IMPLIES_EXEC forcing on x86-64 and arm64. Add tables documenting how READ_IMPLIES_EXEC is handled on x86-64, arm and arm64. By Kees Cook" * tag 'core_core_updates_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: arm64/elf: Disable automatic READ_IMPLIES_EXEC for 64-bit address spaces arm32/64/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK arm32/64/elf: Add tables to document READ_IMPLIES_EXEC x86/elf: Disable automatic READ_IMPLIES_EXEC on 64-bit x86/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK x86/elf: Add table to document READ_IMPLIES_EXEC |
||
|
Linus Torvalds
|
9d71d3cd9e |
ARM: DT changes for v5.8
This is the set of device tree changes, mostly covering new
hardware support, with 577 patches touching a little over 500
files.
There are five new Arm SoCs supported in this release, all of
them for existing SoC families:
- Realtek RTD1195, RTD1395 and RTD1619 -- three SoCs used in
both NAS devices and Android Set-top-box designs, along
with the "Horseradish", "Lion Skin" and "Mjolnir" reference
platforms; the Mele X1000 and Xnano X5 set-top-boxes and
the Banana Pi BPi-M4 single-board computer.
- Renesas RZ/G1H (r8a7742) -- a high-end 32-bit industrial SoC
and the iW-RainboW-G21D-Qseven-RZG1H board/SoM
- Rockchips RK3326 -- low-end 64-bit SoC along with the
Odroid-GO Advance game console
Newly added machines on already supported SoCs are:
- AMLogic S905D based Smartlabs SML-5442TW TV box
- AMLogic S905X3 based ODROID-C4 SBC
- AMLogic S922XH based Beelink GT-King Pro TV box
- Allwinner A20 based Olimex A20-OLinuXino-LIME-eMMC SBC
- Aspeed ast2500 based BMCs in Facebook x86 "Yosemite V2"
and YADRO OpenPower P9 "Nicole"
- Marvell Kirkwood based Check Point L-50 router
- Mediatek MT8173 based Elm/Hana Chromebook laptops
- Microchip SAMA5D2 "Industrial Connectivity Platform"
reference board
- NXP i.MX8m based Beacon i.MX8m-Mini SoM development kit
- Octavo OSDMP15x based Linux Automation MC-1 development board
- Qualcomm SDM630 based Xiaomi Redmi Note 7 phone
- Realtek RTD1295 based Xnano X5 TV Box
- STMicroelectronics STM32MP1 based Stinger96 single-board
computer and IoT Box
- Samsung Exynos4210 based based Samsung Galaxy S2 phone
- Socionext Uniphier based Akebi96 SBC
- TI Keystone based K2G Evaluation board
- TI am5729 based Beaglebone-AI development board
Include device descriptions for additional hardware support in existing
SoCs and machines based on all major SoC platforms:
- AMlogic Meson
- Allwinner sunxi
- Arm Juno/VFP/Vexpress/Integrator
- Broadcom bcm283x/bcm2711
- Hisilicon hi6220
- Marvell EBU
- Mediatek MT27xx, MT76xx, MT81xx and MT67xx
- Microchip SAMA5D2
- NXP i.MX6/i.MX7/i.MX8 and Layerscape
- Nvidia Tegra
- Qualcomm Snapdragon
- Renesas r8a77961, r8a7791
- Rockchips RK32xx/RK33xx
- ST-Ericsson ux500
- STMicroelectronics SMT32
- Samsung Exynos and S5PV210
- Socionext Uniphier
- TI OMAP5/DRA7 and Keystone
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-dt-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM devicetree updates from Arnd Bergmann:
"This is the set of device tree changes, mostly covering new hardware
support, with 577 patches touching a little over 500 files.
There are five new Arm SoCs supported in this release, all of them for
existing SoC families:
- Realtek RTD1195, RTD1395 and RTD1619 -- three SoCs used in both NAS
devices and Android Set-top-box designs, along with the
"Horseradish", "Lion Skin" and "Mjolnir" reference platforms; the
Mele X1000 and Xnano X5 set-top-boxes and the Banana Pi BPi-M4
single-board computer.
- Renesas RZ/G1H (r8a7742) -- a high-end 32-bit industrial SoC and
the iW-RainboW-G21D-Qseven-RZG1H board/SoM
- Rockchips RK3326 -- low-end 64-bit SoC along with the Odroid-GO
Advance game console
Newly added machines on already supported SoCs are:
- AMLogic S905D based Smartlabs SML-5442TW TV box
- AMLogic S905X3 based ODROID-C4 SBC
- AMLogic S922XH based Beelink GT-King Pro TV box
- Allwinner A20 based Olimex A20-OLinuXino-LIME-eMMC SBC
- Aspeed ast2500 based BMCs in Facebook x86 "Yosemite V2" and YADRO
OpenPower P9 "Nicole"
- Marvell Kirkwood based Check Point L-50 router
- Mediatek MT8173 based Elm/Hana Chromebook laptops
- Microchip SAMA5D2 "Industrial Connectivity Platform" reference
board
- NXP i.MX8m based Beacon i.MX8m-Mini SoM development kit
- Octavo OSDMP15x based Linux Automation MC-1 development board
- Qualcomm SDM630 based Xiaomi Redmi Note 7 phone
- Realtek RTD1295 based Xnano X5 TV Box
- STMicroelectronics STM32MP1 based Stinger96 single-board computer
and IoT Box
- Samsung Exynos4210 based based Samsung Galaxy S2 phone
- Socionext Uniphier based Akebi96 SBC
- TI Keystone based K2G Evaluation board
- TI am5729 based Beaglebone-AI development board
Include device descriptions for additional hardware support in
existing SoCs and machines based on all major SoC platforms:
- AMlogic Meson
- Allwinner sunxi
- Arm Juno/VFP/Vexpress/Integrator
- Broadcom bcm283x/bcm2711
- Hisilicon hi6220
- Marvell EBU
- Mediatek MT27xx, MT76xx, MT81xx and MT67xx
- Microchip SAMA5D2
- NXP i.MX6/i.MX7/i.MX8 and Layerscape
- Nvidia Tegra
- Qualcomm Snapdragon
- Renesas r8a77961, r8a7791
- Rockchips RK32xx/RK33xx
- ST-Ericsson ux500
- STMicroelectronics SMT32
- Samsung Exynos and S5PV210
- Socionext Uniphier
- TI OMAP5/DRA7 and Keystone"
* tag 'arm-dt-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (564 commits)
ARM: dts: keystone: Rename "msmram" node to "sram"
arm: dts: mt2712: add uart APDMA to device tree
arm64: dts: mt8183: add mmc node
arm64: dts: mt2712: add ethernet device node
arm64: tegra: Make the RTC a wakeup source on Jetson Nano and TX1
ARM: dts: mmp3: Add the fifth SD HCI
ARM: dts: berlin*: Fix up the SDHCI node names
ARM: dts: mmp3: Fix USB & USB PHY node names
ARM: dts: mmp3: Fix L2 cache controller node name
ARM: dts: mmp*: Fix up encoding of the /rtc interrupts property
ARM: dts: pxa*: Fix up encoding of the /rtc interrupts property
ARM: dts: pxa910: Fix the gpio interrupt cell number
ARM: dts: pxa3xx: Fix up encoding of the /gpio interrupts property
ARM: dts: pxa168: Fix the gpio interrupt cell number
ARM: dts: pxa168: Add missing address/size cells to i2c nodes
ARM: dts: dove: Fix interrupt controller node name
ARM: dts: kirkwood: Fix interrupt controller node name
arm64: dts: Add SC9863A emmc and sd card nodes
arm64: dts: Add SC9863A clock nodes
arm64: dts: mt6358: add PMIC MT6358 related nodes
...
|
||
|
Linus Torvalds
|
828f3e18e1 |
ARM/SoC: drivers for v5.7
These are updates to SoC specific drivers that did not have
another subsystem maintainer tree to go through for some
reason:
- Some bus and memory drivers for the MIPS P5600 based
Baikal-T1 SoC that is getting added through the MIPS tree.
- There are new soc_device identification drivers for TI K3,
Qualcomm MSM8939
- New reset controller drivers for NXP i.MX8MP, Renesas
RZ/G1H, and Hisilicon hi6220
- The SCMI firmware interface can now work across ARM SMC/HVC
as a transport.
- Mediatek platforms now use a new driver for their "MMSYS"
hardware block that controls clocks and some other aspects
in behalf of the media and gpu drivers.
- Some Tegra processors have improved power management
support, including getting woken up by the PMIC and cluster
power down during idle.
- A new v4l staging driver for Tegra is added.
- Cleanups and minor bugfixes for TI, NXP, Hisilicon,
Mediatek, and Tegra.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM/SoC driver updates from Arnd Bergmann:
"These are updates to SoC specific drivers that did not have another
subsystem maintainer tree to go through for some reason:
- Some bus and memory drivers for the MIPS P5600 based Baikal-T1 SoC
that is getting added through the MIPS tree.
- There are new soc_device identification drivers for TI K3, Qualcomm
MSM8939
- New reset controller drivers for NXP i.MX8MP, Renesas RZ/G1H, and
Hisilicon hi6220
- The SCMI firmware interface can now work across ARM SMC/HVC as a
transport.
- Mediatek platforms now use a new driver for their "MMSYS" hardware
block that controls clocks and some other aspects in behalf of the
media and gpu drivers.
- Some Tegra processors have improved power management support,
including getting woken up by the PMIC and cluster power down
during idle.
- A new v4l staging driver for Tegra is added.
- Cleanups and minor bugfixes for TI, NXP, Hisilicon, Mediatek, and
Tegra"
* tag 'arm-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (155 commits)
clk: sprd: fix compile-testing
bus: bt1-axi: Build the driver into the kernel
bus: bt1-apb: Build the driver into the kernel
bus: bt1-axi: Use sysfs_streq instead of strncmp
bus: bt1-axi: Optimize the return points in the driver
bus: bt1-apb: Use sysfs_streq instead of strncmp
bus: bt1-apb: Use PTR_ERR_OR_ZERO to return from request-regs method
bus: bt1-apb: Fix show/store callback identations
bus: bt1-apb: Include linux/io.h
dt-bindings: memory: Add Baikal-T1 L2-cache Control Block binding
memory: Add Baikal-T1 L2-cache Control Block driver
bus: Add Baikal-T1 APB-bus driver
bus: Add Baikal-T1 AXI-bus driver
dt-bindings: bus: Add Baikal-T1 APB-bus binding
dt-bindings: bus: Add Baikal-T1 AXI-bus binding
staging: tegra-video: fix V4L2 dependency
tee: fix crypto select
drivers: soc: ti: knav_qmss_queue: Make knav_gp_range_ops static
soc: ti: add k3 platforms chipid module driver
dt-bindings: soc: ti: add binding for k3 platforms chipid module
...
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Linus Torvalds
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298743c193 |
ARM: defconfig updates fopr 5.8
These are the usual updates to arm/arm64 defconfig files, enabling newly added drivers and addressing changes to Kconfig files. Signed-off-by: Arnd Bergmann <arnd@arndb.de> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAl7XvuAACgkQmmx57+YA GNnCpg//du9Y4XQOwpGGhhQAZ/SBXPXrG5OsJUxXgafwMO3YHNR4BnLlIZuhg79+ X993tjZzlAPNEjw0DsaWRnyIc6k9NbklDOXN8yeaYfts6PVEp1bDgMWaJv9W9Lib 7xSN3fhIP9kcAqX3CNPUfGluCIFbarBPv/SNKkPWc7wNFtSc6qKjWaVavBe/7ag3 jfCUpEd0u48KYFtc52M5zYZ4SJX/nGXj61H8DMVqeGEEiX1Rz2kJMSB2uqave9Bq SbHkacuvUmXeb+FUZfnEA3OFrQk0pqw+/hvlmln+0ViW00S8Y3B8sJcCEjVpphHC xMDCGejHyYCQFuDgHgywkaBk/SXLAFs3GUPH9lgx1OtHZgCHKxjRbhggGBdibbJh zAAShgeVZILSfe/JcEt6WyzsdBxFwuTxDZPoW3LHeRZsUpXzD0MZ34SEEXXkm+oz 4E/X5qxVGnAF3Z2q2jj3GJzkUI26J2TfB9PazlLMvU6btanV7AzZfa8/tXJo3KE8 BR7ub9F7eSF6FMGS/PAOsfpXC70oauPx+h2M5hRkCsZ71w2AWvi7TW3ahDu/WAIX hqWvKX//eKNqd2oI+fWiSUOfvXy4nhE2kC9vB6dg6L8vS+1Z25F2MsV9eMJIfL7I xHSqIEDixL6nQpZmHxUYkSwot7/90Ve2IYUi2qJr29EtSJXUWso= =ma5a -----END PGP SIGNATURE----- Merge tag 'arm-defconfig-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM defconfig updates from Arnd Bergmann: "These are the usual updates to arm/arm64 defconfig files, enabling newly added drivers and addressing changes to Kconfig files" * tag 'arm-defconfig-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (22 commits) ARM: imx_v6_v7_defconfig: extend RN5T618 PMIC family support arm64: defconfig: enable Qualcomm IPA and RMNet modules arm64: defconfig: Add LEDS_TRIGGER_TIMER arm64: defconfig: Enable UACCE/PCI PASID/SEC2/HPRE configs arm64: defconfig: Enable Qualcomm SC7180 pinctrl and gcc arm64: defconfig: Remove QCOM_GLINK_SSR ARM: multi_v7_defconfig: Enable r8a7742 SoC ARM: shmobile: defconfig: Enable r8a7742 SoC arm64: defconfig: enable meson gx audio as module arm64: defconfig: Enable SM8250 GCC driver ARM: defconfig: u8500: Enable new drivers for ux500 arm64: defconfig: Enable CONFIG_PINCTRL_IMX8DXL by default arm64: configs: Enable sun50i cpufreq nvmem ARM: shmobile: defconfig: Refresh for v5.7-rc1 ARM: defconfig: u8500: Enable new drivers for samsung-golden ARM: configs: sunxi: Add sun8i analog codec arm64: defconfig: Enable Qualcomm CAMCC, CAMSS and CCI drivers ARM: configs: at91: sama5: enable MCP16502 regulator ARM: configs: at91: sama5: enable SAMA5D2_PIOBU ARM: exynos_defconfig: Compile MAC80211/CFG80211 as modules ... |
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Linus Torvalds
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694b5a5d31 |
ARM: SoC changes for v5.8
One new platform gets added, the Realtek RTD1195, which is an older Cortex-a7 based relative of the RTD12xx chips that are already supported in arch/arm64. The platform may also be extended to support running 32-bit kernels on those 64-bit chips for memory-constrained machines. In the Renesas shmobile platform, we gain support for "RZ/G1H" or R8A7742, an eight-core chip based on Cortex-A15 and Cortex-A7 cores, originally released in 2016 as one of the last high-end 32-bit designs. There is ongoing cleanup for the integrator, tegra, imx, and omap2 platforms, with integrator getting very close to the goal of having zero code in arch/arm/, and omap2 moving more of the chip specifics from old board code into device tree files. The Versatile Express platform is made more modular, with built-in drivers now becoming loadable modules. This is part of a greater effort for the Android OS to have a common kernel binary for all platforms and any platform specific code in loadable modules. The PXA platform drops support for Compulab's pxa2xx boards that had rather unusual flash and PCI drivers but no known users remaining. All device drivers specific to those boards can now get removed as well. Across platforms, there is ongoing cleanup, with Geert and Rob revisiting some a lot of Kconfig options. Signed-off-by: Arnd Bergmann <arnd@arndb.de> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAl7XvmAACgkQmmx57+YA GNk4vRAAs3TxlwLAUk5dknAi+UstlviNPG/ys6mViFuLqktPyhkA/v6nFOBI5Ldf 8xAsaSk3+oAX3Dd7aTaudl5WMFWFtzT5xA4gEI7CBZrBaAL0BVns1JfnVxpPRIcF B09Sb3wv7++E/+AxYcoVLWd5wkc9tlMesrIV5FPHHasOp3rRjVI0cExXnXzqJU8M TbwrWEOczZNVAm2q4Eh1ttbuSIvPd3s4NMnI755MRSQ7u/rYFSPf6Ay8/eFTqx1e 0SMWHRmrGeP6yhLy7+Li0x0jsK3ReZ9SkLXp3iEZ9huKbBTHIPBUeBB1RMnCYGe+ M2OL+9ySSe9UI9sjvsLGPDAnJaZI/UDUOVhatZCTvYB7CZY5nYNrYp+heYFONWm6 Up3e1t2iGPbgs8/1y78a9YPxAdsW0iavRtjVUYb+nwX+savYZgSBATA1pZqLc317 5FAGmTh//OLKYBSjfAxu9H8aInJPZA595lUiPHEQujzZH5Xz0QNtv4dapeNL2I4g LO20PMvuEgmwlwj/Npnwdl0UQK3ztoeR2upCrk91VwtNWGiOWTzCMT/OkYAAjKuo QYMGu3UvbbTCHPsIdrUz8gZ2T3VnJoeE3ldny2QbNAtVdpH/F8htJcilrBbyv1vI IKB1oogf5zfUwXVwZRxCfI9s5hELUlAKMGTtNcybzdsKpN5xtTo= =gzCp -----END PGP SIGNATURE----- Merge tag 'arm-soc-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC updates from Arnd Bergmann: "One new platform gets added, the Realtek RTD1195, which is an older Cortex-a7 based relative of the RTD12xx chips that are already supported in arch/arm64. The platform may also be extended to support running 32-bit kernels on those 64-bit chips for memory-constrained machines. In the Renesas shmobile platform, we gain support for "RZ/G1H" or R8A7742, an eight-core chip based on Cortex-A15 and Cortex-A7 cores, originally released in 2016 as one of the last high-end 32-bit designs. There is ongoing cleanup for the integrator, tegra, imx, and omap2 platforms, with integrator getting very close to the goal of having zero code in arch/arm/, and omap2 moving more of the chip specifics from old board code into device tree files. The Versatile Express platform is made more modular, with built-in drivers now becoming loadable modules. This is part of a greater effort for the Android OS to have a common kernel binary for all platforms and any platform specific code in loadable modules. The PXA platform drops support for Compulab's pxa2xx boards that had rather unusual flash and PCI drivers but no known users remaining. All device drivers specific to those boards can now get removed as well. Across platforms, there is ongoing cleanup, with Geert and Rob revisiting some a lot of Kconfig options" * tag 'arm-soc-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (94 commits) ARM: omap2: fix omap5_realtime_timer_init definition ARM: zynq: Don't select CONFIG_ICST ARM: OMAP2+: Fix regression for using local timer on non-SMP SoCs clk: versatile: Fix kconfig dependency on COMMON_CLK_VERSATILE ARM: davinci: fix build failure without I2C power: reset: vexpress: fix build issue power: vexpress: cleanup: use builtin_platform_driver power: vexpress: add suppress_bind_attrs to true Revert "ARM: vexpress: Don't select VEXPRESS_CONFIG" MAINTAINERS: pxa: remove Compulab arm/pxa support ARM: pxa: remove Compulab pxa2xx boards bus: arm-integrator-lm: Fix return value check in integrator_ap_lm_probe() soc: imx: move cpu code to drivers/soc/imx ARM: imx: move cpu definitions into a header ARM: imx: use device_initcall for imx_soc_device_init ARM: imx: pcm037: make pcm970_sja1000_platform_data static bus: ti-sysc: Timers no longer need legacy quirk handling ARM: OMAP2+: Drop old timer code for dmtimer and 32k counter ARM: dts: Configure system timers for omap2 ARM: dts: Configure system timers for ti81xx ... |
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Linus Torvalds
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886d7de631 |
Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton: - More MM work. 100ish more to go. Mike Rapoport's "mm: remove __ARCH_HAS_5LEVEL_HACK" series should fix the current ppc issue - Various other little subsystems * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (127 commits) lib/ubsan.c: fix gcc-10 warnings tools/testing/selftests/vm: remove duplicate headers selftests: vm: pkeys: fix multilib builds for x86 selftests: vm: pkeys: use the correct page size on powerpc selftests/vm/pkeys: override access right definitions on powerpc selftests/vm/pkeys: test correct behaviour of pkey-0 selftests/vm/pkeys: introduce a sub-page allocator selftests/vm/pkeys: detect write violation on a mapped access-denied-key page selftests/vm/pkeys: associate key on a mapped page and detect write violation selftests/vm/pkeys: associate key on a mapped page and detect access violation selftests/vm/pkeys: improve checks to determine pkey support selftests/vm/pkeys: fix assertion in test_pkey_alloc_exhaust() selftests/vm/pkeys: fix number of reserved powerpc pkeys selftests/vm/pkeys: introduce powerpc support selftests/vm/pkeys: introduce generic pkey abstractions selftests: vm: pkeys: use the correct huge page size selftests/vm/pkeys: fix alloc_random_pkey() to make it really random selftests/vm/pkeys: fix assertion in pkey_disable_set/clear() selftests/vm/pkeys: fix pkey_disable_clear() selftests: vm: pkeys: add helpers for pkey bits ... |
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Anshuman Khandual
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399145f9eb |
mm/debug: add tests validating architecture page table helpers
This adds tests which will validate architecture page table helpers and other accessors in their compliance with expected generic MM semantics. This will help various architectures in validating changes to existing page table helpers or addition of new ones. This test covers basic page table entry transformations including but not limited to old, young, dirty, clean, write, write protect etc at various level along with populating intermediate entries with next page table page and validating them. Test page table pages are allocated from system memory with required size and alignments. The mapped pfns at page table levels are derived from a real pfn representing a valid kernel text symbol. This test gets called via late_initcall(). This test gets built and run when CONFIG_DEBUG_VM_PGTABLE is selected. Any architecture, which is willing to subscribe this test will need to select ARCH_HAS_DEBUG_VM_PGTABLE. For now this is limited to arc, arm64, x86, s390 and powerpc platforms where the test is known to build and run successfully Going forward, other architectures too can subscribe the test after fixing any build or runtime problems with their page table helpers. Folks interested in making sure that a given platform's page table helpers conform to expected generic MM semantics should enable the above config which will just trigger this test during boot. Any non conformity here will be reported as an warning which would need to be fixed. This test will help catch any changes to the agreed upon semantics expected from generic MM and enable platforms to accommodate it thereafter. [anshuman.khandual@arm.com: v17] Link: http://lkml.kernel.org/r/1587436495-22033-3-git-send-email-anshuman.khandual@arm.com [anshuman.khandual@arm.com: v18] Link: http://lkml.kernel.org/r/1588564865-31160-3-git-send-email-anshuman.khandual@arm.com Suggested-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390] Tested-by: Christophe Leroy <christophe.leroy@c-s.fr> [ppc32] Reviewed-by: Ingo Molnar <mingo@kernel.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Link: http://lkml.kernel.org/r/1583919272-24178-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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e9f6376858 |
arm64: add support for folded p4d page tables
Implement primitives necessary for the 4th level folding, add walks of p4d level where appropriate, replace 5level-fixup.h with pgtable-nop4d.h and remove __ARCH_USE_5LEVEL_HACK. [arnd@arndb.de: fix gcc-10 shift warning] Link: http://lkml.kernel.org/r/20200429185657.4085975-1-arnd@arndb.de Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: James Morse <james.morse@arm.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Julien Thierry <julien.thierry.kdev@gmail.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200414153455.21744-4-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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0486a39a6d |
linux-watchdog 5.8-rc1 tag
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) iEYEABECAAYFAl7Xe/kACgkQ+iyteGJfRsqNGQCfeElXEDv9j+KHROxL94EYYoKP Up8AoI/Gnhfmi/WVCyrwvfdtuAbfehcN =72fM -----END PGP SIGNATURE----- Merge tag 'linux-watchdog-5.8-rc1' of git://www.linux-watchdog.org/linux-watchdog Pull watchdog updates from Wim Van Sebroeck: - add new arm_smc_wdt watchdog driver - da9062 and da9063 improvements - clarify documentation about stop() that became optional - document r8a7742 support - some overall fixes and improvements * tag 'linux-watchdog-5.8-rc1' of git://www.linux-watchdog.org/linux-watchdog: watchdog: m54xx: Add missing include dt-bindings: watchdog: renesas,wdt: Document r8a7742 support watchdog: Fix runtime PM imbalance on error watchdog: riowd: remove unneeded semicolon watchdog: Add new arm_smc_wdt watchdog driver dt-bindings: watchdog: Add ARM smc wdt for mt8173 watchdog watchdog: imx2_wdt: update contact email watchdog: iTCO: fix link error watchdog: da9062: No need to ping manually before setting timeout watchdog: da9063: Make use of pre-configured timeout during probe watchdog: da9062: Initialize timeout during probe watchdog: clarify that stop() is optional watchdog: imx_sc_wdt: Fix reboot on crash watchdog: ts72xx_wdt: fix build error |
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Christophe JAILLET
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5311ebfb61 |
arm64: debug: mark a function as __init to save some memory
'debug_monitors_init()' is only called via 'postcore_initcall'. It can be marked as __init to save a few bytes of memory. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20200531110015.598607-1-christophe.jaillet@wanadoo.fr Signed-off-by: Will Deacon <will@kernel.org> |
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Paolo Bonzini
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d56f5136b0 |
KVM: let kvm_destroy_vm_debugfs clean up vCPU debugfs directories
After commit |