Alexandre Ghiti [Tue, 4 Jul 2023 07:43:56 +0000 (09:43 +0200)]
riscv: Mark KASAN tmp* page tables variables as static
tmp_pg_dir, tmp_p4d and tmp_pud are only used in kasan_init.c so they
should be declared as static.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/
202306282202.bODptiGE-lkp@intel.com/
Fixes:
96f9d4daf745 ("riscv: Rework kasan population functions")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230704074357.233982-1-alexghiti@rivosinc.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Ye Xingchen [Sat, 6 May 2023 09:11:41 +0000 (17:11 +0800)]
riscv: mm: use bitmap_zero() API
bitmap_zero() is faster than bitmap_clear(), so use bitmap_zero()
instead of bitmap_clear().
Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/202305061711417142802@zte.com.cn
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Palmer Dabbelt [Wed, 16 Aug 2023 14:51:53 +0000 (07:51 -0700)]
Merge patch series "support allocating crashkernel above 4G explicitly on riscv"
Chen Jiahao <chenjiahao16@huawei.com> says:
On riscv, the current crash kernel allocation logic is trying to
allocate within 32bit addressible memory region by default, if
failed, try to allocate without 4G restriction.
In need of saving DMA zone memory while allocating a relatively large
crash kernel region, allocating the reserved memory top down in
high memory, without overlapping the DMA zone, is a mature solution.
Hence this patchset introduces the parameter option crashkernel=X,[high,low].
One can reserve the crash kernel from high memory above DMA zone range
by explicitly passing "crashkernel=X,high"; or reserve a memory range
below 4G with "crashkernel=X,low". Besides, there are few rules need
to take notice:
1. "crashkernel=X,[high,low]" will be ignored if "crashkernel=size"
is specified.
2. "crashkernel=X,low" is valid only when "crashkernel=X,high" is passed
and there is enough memory to be allocated under 4G.
3. When allocating crashkernel above 4G and no "crashkernel=X,low" is
specified, a 128M low memory will be allocated automatically for
swiotlb bounce buffer.
See Documentation/admin-guide/kernel-parameters.txt for more information.
To verify loading the crashkernel, adapted kexec-tools is attached below:
https://github.com/chenjh005/kexec-tools/tree/build-test-riscv-v2
Following test cases have been performed as expected:
1) crashkernel=256M //low=256M
2) crashkernel=1G //low=1G
3) crashkernel=4G //high=4G, low=128M(default)
4) crashkernel=4G crashkernel=256M,high //high=4G, low=128M(default), high is ignored
5) crashkernel=4G crashkernel=256M,low //high=4G, low=128M(default), low is ignored
6) crashkernel=4G,high //high=4G, low=128M(default)
7) crashkernel=256M,low //low=0M, invalid
8) crashkernel=4G,high crashkernel=256M,low //high=4G, low=256M
9) crashkernel=4G,high crashkernel=4G,low //high=0M, low=0M, invalid
10) crashkernel=512M@0xd0000000 //low=512M
11) crashkernel=1G,high crashkernel=0M,low //high=1G, low=0M
* b4-shazam-merge:
docs: kdump: Update the crashkernel description for riscv
riscv: kdump: Implement crashkernel=X,[high,low]
Link: https://lore.kernel.org/r/20230726175000.2536220-1-chenjiahao16@huawei.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Palmer Dabbelt [Wed, 16 Aug 2023 14:48:54 +0000 (07:48 -0700)]
Merge patch series "riscv: kprobes: simulate some instructions"
Nam Cao <namcaov@gmail.com> says:
Simulate some currently rejected instructions. Still to be simulated are:
- c.jal
- c.ebreak
* b4-shazam-merge:
riscv: kprobes: simulate c.beqz and c.bnez
riscv: kprobes: simulate c.jr and c.jalr instructions
riscv: kprobes: simulate c.j instruction
Link: https://lore.kernel.org/r/cover.1690704360.git.namcaov@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Jisheng Zhang [Thu, 27 Jul 2023 16:03:56 +0000 (00:03 +0800)]
riscv: enable DEBUG_FORCE_FUNCTION_ALIGN_64B
Allow to force all function address 64B aligned as it is possible for
other architectures. This may be useful when verify if performance
bump is caused by function alignment changes.
Before commit
1bf18da62106 ("lib/Kconfig.debug: add ARCH dependency
for FUNCTION_ALIGN option"), riscv supports enabling the
DEBUG_FORCE_FUNCTION_ALIGN_64B option, but after that commit, each
arch needs to claim the support explicitly.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230727160356.3874-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Nam Cao [Tue, 25 Jul 2023 05:38:35 +0000 (07:38 +0200)]
riscv: remove redundant mv instructions
Some mv instructions were useful when first introduced to preserve a0 and
a1 before function calls. However the code has changed and they are now
redundant. Remove them.
Signed-off-by: Nam Cao <namcaov@gmail.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230725053835.138910-1-namcaov@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Palmer Dabbelt [Wed, 16 Aug 2023 14:28:26 +0000 (07:28 -0700)]
Merge patch series "riscv: Allow userspace to directly access perf counters"
Alexandre Ghiti <alexghiti@rivosinc.com> says:
riscv used to allow direct access to cycle/time/instret counters,
bypassing the perf framework, this patchset intends to allow the user to
mmap any counter when accessed through perf.
**Important**: The default mode is now user access through perf only, not
the legacy so some applications will break. However, we introduce a sysctl
perf_user_access like arm64 does, which will allow to switch to the legacy
mode described above.
This version needs openSBI v1.3 *and* a kernel fix that went upstream lately
(https://lore.kernel.org/lkml/
20230616114831.3186980-1-maz@kernel.org/T/).
* b4-shazam-merge:
perf: tests: Adapt mmap-basic.c for riscv
tools: lib: perf: Implement riscv mmap support
Documentation: admin-guide: Add riscv sysctl_perf_user_access
drivers: perf: Implement perf event mmap support in the SBI backend
drivers: perf: Implement perf event mmap support in the legacy backend
riscv: Prepare for user-space perf event mmap support
drivers: perf: Rename riscv pmu sbi driver
riscv: Make legacy counter enum match the HW numbering
include: riscv: Fix wrong include guard in riscv_pmu.h
perf: Fix wrong comment about default event_idx
Link: https://lore.kernel.org/r/20230802080328.1213905-1-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Björn Töpel [Wed, 23 Aug 2023 08:28:45 +0000 (10:28 +0200)]
riscv: Require FRAME_POINTER for some configurations
Some V configurations implicitly turn on '-fno-omit-frame-pointer',
but leaving FRAME_POINTER disabled. This makes it hard to reason about
the FRAME_POINTER config, and also triggers build failures introduced
in by the commit in the Fixes: tag.
Select FRAME_POINTER explicitly for these configurations.
Fixes:
ebc9cb03b21e ("riscv: stack: Fixup independent softirq stack for CONFIG_FRAME_POINTER=n")
Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230823082845.354839-1-bjorn@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Chen Jiahao [Wed, 26 Jul 2023 17:50:00 +0000 (17:50 +0000)]
docs: kdump: Update the crashkernel description for riscv
Now "crashkernel=" parameter on riscv has been updated to support
crashkernel=X,[high,low]. Through which we can reserve memory region
above/within 32bit addressible DMA zone.
Here update the parameter description accordingly.
Signed-off-by: Chen Jiahao <chenjiahao16@huawei.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: Baoquan He <bhe@redhat.com>
Link: https://lore.kernel.org/r/20230726175000.2536220-3-chenjiahao16@huawei.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Chen Jiahao [Wed, 26 Jul 2023 17:49:59 +0000 (17:49 +0000)]
riscv: kdump: Implement crashkernel=X,[high,low]
On riscv, the current crash kernel allocation logic is trying to
allocate within 32bit addressible memory region by default, if
failed, try to allocate without 4G restriction.
In need of saving DMA zone memory while allocating a relatively large
crash kernel region, allocating the reserved memory top down in
high memory, without overlapping the DMA zone, is a mature solution.
Here introduce the parameter option crashkernel=X,[high,low].
One can reserve the crash kernel from high memory above DMA zone range
by explicitly passing "crashkernel=X,high"; or reserve a memory range
below 4G with "crashkernel=X,low".
Signed-off-by: Chen Jiahao <chenjiahao16@huawei.com>
Acked-by: Guo Ren <guoren@kernel.org>
Acked-by: Baoquan He <bhe@redhat.com>
Link: https://lore.kernel.org/r/20230726175000.2536220-2-chenjiahao16@huawei.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Nam Cao [Sun, 30 Jul 2023 08:27:09 +0000 (10:27 +0200)]
riscv: kprobes: simulate c.beqz and c.bnez
kprobes currently rejects instruction c.beqz and c.bnez. Implement them.
Signed-off-by: Nam Cao <namcaov@gmail.com>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/1d879dba4e4ee9a82e27625d6483b5c9cfed684f.1690704360.git.namcaov@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Nam Cao [Sun, 30 Jul 2023 08:27:08 +0000 (10:27 +0200)]
riscv: kprobes: simulate c.jr and c.jalr instructions
kprobes currently rejects c.jr and c.jalr instructions. Implement them.
Signed-off-by: Nam Cao <namcaov@gmail.com>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/db8b7787e9208654cca50484f68334f412be2ea9.1690704360.git.namcaov@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Nam Cao [Sun, 30 Jul 2023 08:27:07 +0000 (10:27 +0200)]
riscv: kprobes: simulate c.j instruction
kprobes currently rejects c.j instruction. Implement it.
Signed-off-by: Nam Cao <namcaov@gmail.com>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/6ef76cd9984b8015826649d13f870f8ac45a2d0d.1690704360.git.namcaov@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:28 +0000 (10:03 +0200)]
perf: tests: Adapt mmap-basic.c for riscv
riscv now supports mmaping hardware counters to userspace so adapt the test
to run on this architecture.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:27 +0000 (10:03 +0200)]
tools: lib: perf: Implement riscv mmap support
riscv now supports mmaping hardware counters so add what's needed to
take advantage of that in libperf.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:26 +0000 (10:03 +0200)]
Documentation: admin-guide: Add riscv sysctl_perf_user_access
riscv now uses this sysctl so document its usage for this architecture.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:25 +0000 (10:03 +0200)]
drivers: perf: Implement perf event mmap support in the SBI backend
We used to unconditionnally expose the cycle and instret csrs to
userspace, which gives rise to security concerns.
So now we only allow access to hw counters from userspace through the perf
framework which will handle context switches, per-task events...etc. A
sysctl allows to revert the behaviour to the legacy mode so that userspace
applications which are not ready for this change do not break.
But the default value is to allow userspace only through perf: this will
break userspace applications which rely on direct access to rdcycle.
This choice was made for security reasons [1][2]: most of the applications
which use rdcycle can instead use rdtime to count the elapsed time.
[1] https://groups.google.com/a/groups.riscv.org/g/sw-dev/c/REWcwYnzsKE?pli=1
[2] https://www.youtube.com/watch?v=3-c4C_L2PRQ&ab_channel=IEEESymposiumonSecurityandPrivacy
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:24 +0000 (10:03 +0200)]
drivers: perf: Implement perf event mmap support in the legacy backend
Implement the needed callbacks in the legacy driver so that we can
directly access the counters through perf in userspace.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:23 +0000 (10:03 +0200)]
riscv: Prepare for user-space perf event mmap support
Provide all the necessary bits in the generic riscv pmu driver to be
able to mmap perf events in userspace: the heavy lifting lies in the
driver backend, namely the legacy and sbi implementations.
Note that arch_perf_update_userpage is almost a copy of arm64 code.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:22 +0000 (10:03 +0200)]
drivers: perf: Rename riscv pmu sbi driver
That's just cosmetic, no functional changes.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:21 +0000 (10:03 +0200)]
riscv: Make legacy counter enum match the HW numbering
RISCV_PMU_LEGACY_INSTRET used to be set to 1 whereas the offset of this
hardware counter from CSR_CYCLE is actually 2: make this offset match the
real hw offset so that we can directly expose those values to userspace.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:20 +0000 (10:03 +0200)]
include: riscv: Fix wrong include guard in riscv_pmu.h
The current include guard prevents the inclusion of asm/perf_event.h
which uses the same include guard: fix the one in riscv_pmu.h so that it
matches the file name.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Alexandre Ghiti [Wed, 2 Aug 2023 08:03:19 +0000 (10:03 +0200)]
perf: Fix wrong comment about default event_idx
Since commit
c719f56092ad ("perf: Fix and clean up initialization of
pmu::event_idx"), event_idx default implementation has returned 0, not
idx + 1, so fix the comment that can be misleading.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Yuan Tan [Sun, 23 Jul 2023 16:51:55 +0000 (00:51 +0800)]
riscv: alternatives: fix a typo in comment
In the usage of ALTERNATIVE, "always" is misspelled as "alwyas".
Signed-off-by: Yuan Tan <tanyuan@tinylab.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230723165155.4896-1-tanyuan@tinylab.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Justin Stitt [Wed, 2 Aug 2023 00:21:58 +0000 (00:21 +0000)]
RISC-V: cpu: refactor deprecated strncpy
`strncpy` is deprecated for use on NUL-terminated destination strings [1].
Favor not copying strings onto stack and instead use strings directly.
This avoids hard-coding sizes and buffer lengths all together.
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230802-arch-riscv-kernel-v2-1-24266e85bc96@google.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Palmer Dabbelt [Tue, 25 Jul 2023 23:26:30 +0000 (16:26 -0700)]
Merge patch series "RISC-V: Probe DT extension support using riscv,isa-extensions & riscv,isa-base"
Conor Dooley <conor.dooley@microchip.com> says:
Based on my latest iteration of deprecating riscv,isa [1], here's an
implementation of the new properties for Linux. The first few patches,
up to "RISC-V: split riscv_fill_hwcap() in 3", are all prep work that
further tames some of the extension related code, on top of my already
applied series that cleans up the ISA string parser.
Perhaps "RISC-V: shunt isa_ext_arr to cpufeature.c" is a bit gratuitous,
but I figured a bit of coalescing of extension related data structures
would be a good idea. Note that riscv,isa will still be used in the
absence of the new properties. Palmer suggested adding a Kconfig option
to turn off the fallback for DT, which I have gone and done. It's locked
behind the NONPORTABLE option for good reason.
* b4-shazam-merge:
RISC-V: provide Kconfig & commandline options to control parsing "riscv,isa"
RISC-V: try new extension properties in of_early_processor_hartid()
RISC-V: enable extension detection from dedicated properties
RISC-V: split riscv_fill_hwcap() in 3
RISC-V: add single letter extensions to riscv_isa_ext
RISC-V: add missing single letter extension definitions
RISC-V: repurpose riscv_isa_ext array in riscv_fill_hwcap()
RISC-V: shunt isa_ext_arr to cpufeature.c
RISC-V: drop a needless check in print_isa_ext()
RISC-V: don't parse dt/acpi isa string to get rv32/rv64
RISC-V: Provide a more helpful error message on invalid ISA strings
Link: https://lore.kernel.org/r/20230713-target-much-8ac624e90df8@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Conor Dooley [Thu, 13 Jul 2023 12:11:09 +0000 (13:11 +0100)]
RISC-V: provide Kconfig & commandline options to control parsing "riscv,isa"
As it says on the tin, provide Kconfig option to control parsing the
"riscv,isa" devicetree property. If either option is used, the kernel
will fall back to parsing "riscv,isa", where "riscv,isa-base" and
"riscv,isa-extensions" are not present.
The Kconfig options are set up so that the default kernel configuration
will enable the fallback path, without needing the commandline option.
Suggested-by: Andrew Jones <ajones@ventanamicro.com>
Suggested-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-aviator-plausibly-a35662485c2c@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Conor Dooley [Thu, 13 Jul 2023 12:11:08 +0000 (13:11 +0100)]
RISC-V: try new extension properties in of_early_processor_hartid()
To fully deprecate the kernel's use of "riscv,isa",
of_early_processor_hartid() needs to first try using the new properties,
before falling back to "riscv,isa".
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-tablet-jimmy-987fea0eb2e1@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Conor Dooley [Thu, 13 Jul 2023 12:11:07 +0000 (13:11 +0100)]
RISC-V: enable extension detection from dedicated properties
Add support for parsing the new riscv,isa-extensions property in
riscv_fill_hwcap(), by means of a new "property" member of the
riscv_isa_ext_data struct. For now, this shadows the name of the
extension for all users, however this may not be the case for all
extensions, based on how the dt-binding is written.
For the sake of backwards compatibility, fall back to the old scheme
if the new properties are not detected. For now, just inform, rather
than warn, when that happens.
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-vocation-profane-39a74b3c2649@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Conor Dooley [Thu, 13 Jul 2023 12:11:06 +0000 (13:11 +0100)]
RISC-V: split riscv_fill_hwcap() in 3
Before adding more complexity to it, split riscv_fill_hwcap() into 3
distinct sections:
- riscv_fill_hwcap() still is the top level function, into which the
additional complexity will be added.
- riscv_fill_hwcap_from_isa_string() handles getting the information
from the riscv,isa/ACPI equivalent across harts & the various quirks
there
- riscv_parse_isa_string() does what it says on the tin.
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-daylight-puritan-37aeb41a4d9b@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Conor Dooley [Thu, 13 Jul 2023 12:11:05 +0000 (13:11 +0100)]
RISC-V: add single letter extensions to riscv_isa_ext
So that riscv_fill_hwcap() can use riscv_isa_ext to probe for single
letter extensions, add them to it.
As a result, what gets spat out in /proc/cpuinfo will become borked, as
single letter extensions will be printed as part of the base extensions
and while printing from riscv_isa_arr. Take the opportunity to unify the
printing of the isa string, using the new member of riscv_isa_ext_data
in the process.
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-despite-bright-de00ac888cc7@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Conor Dooley [Thu, 13 Jul 2023 12:11:04 +0000 (13:11 +0100)]
RISC-V: add missing single letter extension definitions
To facilitate adding single letter extensions to riscv_isa_ext, add
definitions for the extensions present in base_riscv_exts that do not
already have them.
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Evan Green <evan@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-train-feisty-93de38250f98@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Conor Dooley [Thu, 13 Jul 2023 12:11:03 +0000 (13:11 +0100)]
RISC-V: repurpose riscv_isa_ext array in riscv_fill_hwcap()
In riscv_fill_hwcap() riscv_isa_ext array can be looped over, rather
than duplicating the list of extensions with individual
SET_ISA_EXT_MAP() usage. While at it, drop the statement-of-the-obvious
comments from the struct, rename uprop to something more suitable for
its new use & constify the members.
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-dastardly-affiliate-4cf819dccde2@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Conor Dooley [Thu, 13 Jul 2023 12:11:02 +0000 (13:11 +0100)]
RISC-V: shunt isa_ext_arr to cpufeature.c
To facilitate using one struct to define extensions, rather than having
several, shunt isa_ext_arr to cpufeature.c, where it will be used for
probing extension presence also.
As that scope of the array as widened, prefix it with riscv & drop the
type from the variable name.
Since the new array is const, print_isa() needs a wee bit of cleanup to
avoid complaints about losing the const qualifier.
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Evan Green <evan@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-spirits-upside-a2c61c65fd5a@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Conor Dooley [Thu, 13 Jul 2023 12:11:01 +0000 (13:11 +0100)]
RISC-V: drop a needless check in print_isa_ext()
isa_ext_arr cannot be empty, as some of the extensions within it are
always built into the kernel. When this code was first added, back in
commit
a9b202606c69 ("RISC-V: Improve /proc/cpuinfo output for ISA
extensions"), the array was empty and needed a dummy item & thus there
could be no extensions present. When the first multi-letter ones did
get added, it was Sscofpmf - which didn't have a Kconfig symbol to
disable it.
Remove this check, as it has been redundant since Sscofpmf was added.
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-veggie-mug-3d3bf6787ae2@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Heiko Stuebner [Thu, 13 Jul 2023 12:11:00 +0000 (13:11 +0100)]
RISC-V: don't parse dt/acpi isa string to get rv32/rv64
When filling hwcap the kernel already expects the isa string to start with
rv32 if CONFIG_32BIT and rv64 if CONFIG_64BIT.
So when recreating the runtime isa-string we can also just go the other way
to get the correct starting point for it.
Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Evan Green <evan@rivosinc.com>
Co-developed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-masculine-saddlebag-67a94966b091@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Palmer Dabbelt [Thu, 13 Jul 2023 12:10:59 +0000 (13:10 +0100)]
RISC-V: Provide a more helpful error message on invalid ISA strings
Right now we provide a somewhat unhelpful error message on systems with
invalid error messages, something along the lines of
CPU with hartid=0 is not available
------------[ cut here ]------------
kernel BUG at arch/riscv/kernel/smpboot.c:174!
Kernel BUG [#1]
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 6.4.0-rc1-00096-ge0097d2c62d5-dirty #1
Hardware name: Microchip PolarFire-SoC Icicle Kit (DT)
epc : of_parse_and_init_cpus+0x16c/0x16e
ra : of_parse_and_init_cpus+0x9a/0x16e
epc :
ffffffff80c04e0a ra :
ffffffff80c04d38 sp :
ffffffff81603e20
gp :
ffffffff8182d658 tp :
ffffffff81613f80 t0 :
000000000000006e
t1 :
0000000000000064 t2 :
0000000000000000 s0 :
ffffffff81603e80
s1 :
0000000000000000 a0 :
0000000000000000 a1 :
0000000000000000
a2 :
0000000000000000 a3 :
0000000000000000 a4 :
0000000000000000
a5 :
0000000000001fff a6 :
0000000000001fff a7 :
ffffffff816148b0
s2 :
0000000000000001 s3 :
ffffffff81492a4c s4 :
ffffffff81a4b090
s5 :
ffffffff81506030 s6 :
0000000000000040 s7 :
0000000000000000
s8 :
00000000bfb6f046 s9 :
0000000000000001 s10:
0000000000000000
s11:
00000000bf389700 t3 :
0000000000000000 t4 :
0000000000000000
t5 :
ffffffff824dd188 t6 :
ffffffff824dd187
status:
0000000200000100 badaddr:
0000000000000000 cause:
0000000000000003
[<
ffffffff80c04e0a>] of_parse_and_init_cpus+0x16c/0x16e
[<
ffffffff80c04c96>] setup_smp+0x1e/0x26
[<
ffffffff80c03ffe>] setup_arch+0x6e/0xb2
[<
ffffffff80c00384>] start_kernel+0x72/0x400
Code: 80e7 4a00 a603 0009 b795 1097 ffe5 80e7 92c0 9002 (9002) 715d
---[ end trace
0000000000000000 ]---
Kernel panic - not syncing: Fatal exception in interrupt
Add a warning for the cases where the ISA string isn't valid. It's still
above the BUG_ON cut, but hopefully it's at least a bit easier for users.
Reviewed-by: Evan Green <evan@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230713-endless-spearhead-62a5a4b149bd@wendy
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Guo Ren [Wed, 28 Jun 2023 09:12:13 +0000 (05:12 -0400)]
riscv: sigcontext: Correct the comment of sigreturn
The real-time signals enlarged the sigset_t type, and most architectures
have changed to using rt_sigreturn as the only way. The riscv is one of
them, and there is no sys_sigreturn in it. Only some old architecture
preserved sys_sigreturn as part of the historical burden.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20230628091213.2908149-1-guoren@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Linus Torvalds [Sun, 9 Jul 2023 20:53:13 +0000 (13:53 -0700)]
Linux 6.5-rc1
Linus Torvalds [Sun, 9 Jul 2023 17:29:53 +0000 (10:29 -0700)]
MAINTAINERS 2: Electric Boogaloo
We just sorted the entries and fields last release, so just out of a
perverse sense of curiosity, I decided to see if we can keep things
ordered for even just one release.
The answer is "No. No we cannot".
I suggest that all kernel developers will need weekly training sessions,
involving a lot of Big Bird and Sesame Street. And at the yearly
maintainer summit, we will all sing the alphabet song together.
I doubt I will keep doing this. At some point "perverse sense of
curiosity" turns into just a cold dark place filled with sadness and
despair.
Repeats:
80e62bc8487b ("MAINTAINERS: re-sort all entries and fields")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 9 Jul 2023 17:24:22 +0000 (10:24 -0700)]
Merge tag 'dma-mapping-6.5-2023-07-09' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
- swiotlb area sizing fixes (Petr Tesarik)
* tag 'dma-mapping-6.5-2023-07-09' of git://git.infradead.org/users/hch/dma-mapping:
swiotlb: reduce the number of areas to match actual memory pool size
swiotlb: always set the number of areas before allocating the pool
Linus Torvalds [Sun, 9 Jul 2023 17:16:04 +0000 (10:16 -0700)]
Merge tag 'irq_urgent_for_v6.5_rc1' of git://git./linux/kernel/git/tip/tip
Pull irq update from Borislav Petkov:
- Optimize IRQ domain's name assignment
* tag 'irq_urgent_for_v6.5_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqdomain: Use return value of strreplace()
Linus Torvalds [Sun, 9 Jul 2023 17:13:32 +0000 (10:13 -0700)]
Merge tag 'x86_urgent_for_v6.5_rc1' of git://git./linux/kernel/git/tip/tip
Pull x86 fpu fix from Borislav Petkov:
- Do FPU AP initialization on Xen PV too which got missed by the recent
boot reordering work
* tag 'x86_urgent_for_v6.5_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/xen: Fix secondary processors' FPU initialization
Linus Torvalds [Sun, 9 Jul 2023 17:08:38 +0000 (10:08 -0700)]
Merge tag 'x86-core-2023-07-09' of git://git./linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner:
"A single fix for the mechanism to park CPUs with an INIT IPI.
On shutdown or kexec, the kernel tries to park the non-boot CPUs with
an INIT IPI. But the same code path is also used by the crash utility.
If the CPU which panics is not the boot CPU then it sends an INIT IPI
to the boot CPU which resets the machine.
Prevent this by validating that the CPU which runs the stop mechanism
is the boot CPU. If not, leave the other CPUs in HLT"
* tag 'x86-core-2023-07-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/smp: Don't send INIT to boot CPU
Linus Torvalds [Sun, 9 Jul 2023 17:02:49 +0000 (10:02 -0700)]
Merge tag 'mips_6.5_1' of git://git./linux/kernel/git/mips/linux
Pull MIPS fixes from Thomas Bogendoerfer:
- fixes for KVM
- fix for loongson build and cpu probing
- DT fixes
* tag 'mips_6.5_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: kvm: Fix build error with KVM_MIPS_DEBUG_COP0_COUNTERS enabled
MIPS: dts: add missing space before {
MIPS: Loongson: Fix build error when make modules_install
MIPS: KVM: Fix NULL pointer dereference
MIPS: Loongson: Fix cpu_probe_loongson() again
Linus Torvalds [Sun, 9 Jul 2023 16:50:42 +0000 (09:50 -0700)]
Merge tag 'xfs-6.5-merge-6' of git://git./fs/xfs/xfs-linux
Pull xfs fix from Darrick Wong:
"Nothing exciting here, just getting rid of a gcc warning that I got
tired of seeing when I turn on gcov"
* tag 'xfs-6.5-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix uninit warning in xfs_growfs_data
Linus Torvalds [Sun, 9 Jul 2023 16:45:32 +0000 (09:45 -0700)]
Merge tag '6.5-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull more smb client updates from Steve French:
- fix potential use after free in unmount
- minor cleanup
- add worker to cleanup stale directory leases
* tag '6.5-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Add a laundromat thread for cached directories
smb: client: remove redundant pointer 'server'
cifs: fix session state transition to avoid use-after-free issue
Linus Torvalds [Sun, 9 Jul 2023 16:35:51 +0000 (09:35 -0700)]
Merge tag 'ntb-6.5' of https://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"Fixes for pci_clean_master, error handling in driver inits, and
various other issues/bugs"
* tag 'ntb-6.5' of https://github.com/jonmason/ntb:
ntb: hw: amd: Fix debugfs_create_dir error checking
ntb.rst: Fix copy and paste error
ntb_netdev: Fix module_init problem
ntb: intel: Remove redundant pci_clear_master
ntb: epf: Remove redundant pci_clear_master
ntb_hw_amd: Remove redundant pci_clear_master
ntb: idt: drop redundant pci_enable_pcie_error_reporting()
MAINTAINERS: git://github -> https://github.com for jonmason
NTB: EPF: fix possible memory leak in pci_vntb_probe()
NTB: ntb_tool: Add check for devm_kcalloc
NTB: ntb_transport: fix possible memory leak while device_register() fails
ntb: intel: Fix error handling in intel_ntb_pci_driver_init()
NTB: amd: Fix error handling in amd_ntb_pci_driver_init()
ntb: idt: Fix error handling in idt_pci_driver_init()
Hugh Dickins [Sat, 8 Jul 2023 23:04:00 +0000 (16:04 -0700)]
mm: lock newly mapped VMA with corrected ordering
Lockdep is certainly right to complain about
(&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_write+0x2d/0x3f
but task is already holding lock:
(&mapping->i_mmap_rwsem){+.+.}-{3:3}, at: mmap_region+0x4dc/0x6db
Invert those to the usual ordering.
Fixes:
33313a747e81 ("mm: lock newly mapped VMA which can be modified after it becomes visible")
Cc: stable@vger.kernel.org
Signed-off-by: Hugh Dickins <hughd@google.com>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 8 Jul 2023 21:30:25 +0000 (14:30 -0700)]
Merge tag 'mm-hotfixes-stable-2023-07-08-10-43' of git://git./linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton:
"16 hotfixes. Six are cc:stable and the remainder address post-6.4
issues"
The merge undoes the disabling of the CONFIG_PER_VMA_LOCK feature, since
it was all hopefully fixed in mainline.
* tag 'mm-hotfixes-stable-2023-07-08-10-43' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
lib: dhry: fix sleeping allocations inside non-preemptable section
kasan, slub: fix HW_TAGS zeroing with slub_debug
kasan: fix type cast in memory_is_poisoned_n
mailmap: add entries for Heiko Stuebner
mailmap: update manpage link
bootmem: remove the vmemmap pages from kmemleak in free_bootmem_page
MAINTAINERS: add linux-next info
mailmap: add Markus Schneider-Pargmann
writeback: account the number of pages written back
mm: call arch_swap_restore() from do_swap_page()
squashfs: fix cache race with migration
mm/hugetlb.c: fix a bug within a BUG(): inconsistent pte comparison
docs: update ocfs2-devel mailing list address
MAINTAINERS: update ocfs2-devel mailing list address
mm: disable CONFIG_PER_VMA_LOCK until its fixed
fork: lock VMAs of the parent process when forking
Suren Baghdasaryan [Sat, 8 Jul 2023 19:12:12 +0000 (12:12 -0700)]
fork: lock VMAs of the parent process when forking
When forking a child process, the parent write-protects anonymous pages
and COW-shares them with the child being forked using copy_present_pte().
We must not take any concurrent page faults on the source vma's as they
are being processed, as we expect both the vma and the pte's behind it
to be stable. For example, the anon_vma_fork() expects the parents
vma->anon_vma to not change during the vma copy.
A concurrent page fault on a page newly marked read-only by the page
copy might trigger wp_page_copy() and a anon_vma_prepare(vma) on the
source vma, defeating the anon_vma_clone() that wasn't done because the
parent vma originally didn't have an anon_vma, but we now might end up
copying a pte entry for a page that has one.
Before the per-vma lock based changes, the mmap_lock guaranteed
exclusion with concurrent page faults. But now we need to do a
vma_start_write() to make sure no concurrent faults happen on this vma
while it is being processed.
This fix can potentially regress some fork-heavy workloads. Kernel
build time did not show noticeable regression on a 56-core machine while
a stress test mapping 10000 VMAs and forking 5000 times in a tight loop
shows ~5% regression. If such fork time regression is unacceptable,
disabling CONFIG_PER_VMA_LOCK should restore its performance. Further
optimizations are possible if this regression proves to be problematic.
Suggested-by: David Hildenbrand <david@redhat.com>
Reported-by: Jiri Slaby <jirislaby@kernel.org>
Closes: https://lore.kernel.org/all/
dbdef34c-3a07-5951-e1ae-
e9c6e3cdf51b@kernel.org/
Reported-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Closes: https://lore.kernel.org/all/
b198d649-f4bf-b971-31d0-
e8433ec2a34c@applied-asynchrony.com/
Reported-by: Jacob Young <jacobly.alt@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217624
Fixes:
0bff0aaea03e ("x86/mm: try VMA lock-based page fault handling first")
Cc: stable@vger.kernel.org
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Suren Baghdasaryan [Sat, 8 Jul 2023 19:12:11 +0000 (12:12 -0700)]
mm: lock newly mapped VMA which can be modified after it becomes visible
mmap_region adds a newly created VMA into VMA tree and might modify it
afterwards before dropping the mmap_lock. This poses a problem for page
faults handled under per-VMA locks because they don't take the mmap_lock
and can stumble on this VMA while it's still being modified. Currently
this does not pose a problem since post-addition modifications are done
only for file-backed VMAs, which are not handled under per-VMA lock.
However, once support for handling file-backed page faults with per-VMA
locks is added, this will become a race.
Fix this by write-locking the VMA before inserting it into the VMA tree.
Other places where a new VMA is added into VMA tree do not modify it
after the insertion, so do not need the same locking.
Cc: stable@vger.kernel.org
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Suren Baghdasaryan [Sat, 8 Jul 2023 19:12:10 +0000 (12:12 -0700)]
mm: lock a vma before stack expansion
With recent changes necessitating mmap_lock to be held for write while
expanding a stack, per-VMA locks should follow the same rules and be
write-locked to prevent page faults into the VMA being expanded. Add
the necessary locking.
Cc: stable@vger.kernel.org
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 8 Jul 2023 19:35:18 +0000 (12:35 -0700)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"A few late arriving patches that missed the initial pull request. It's
mostly bug fixes (the dt-bindings is a fix for the initial pull)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Remove unused function declaration
scsi: target: docs: Remove tcm_mod_builder.py
scsi: target: iblock: Quiet bool conversion warning with pr_preempt use
scsi: dt-bindings: ufs: qcom: Fix ICE phandle
scsi: core: Simplify scsi_cdl_check_cmd()
scsi: isci: Fix comment typo
scsi: smartpqi: Replace one-element arrays with flexible-array members
scsi: target: tcmu: Replace strlcpy() with strscpy()
scsi: ncr53c8xx: Replace strlcpy() with strscpy()
scsi: lpfc: Fix lpfc_name struct packing
Linus Torvalds [Sat, 8 Jul 2023 19:28:00 +0000 (12:28 -0700)]
Merge tag 'i2c-for-6.5-rc1-part2' of git://git./linux/kernel/git/wsa/linux
Pull more i2c updates from Wolfram Sang:
- xiic patch should have been in the original pull but slipped through
- mpc patch fixes a build regression
- nomadik cleanup
* tag 'i2c-for-6.5-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: mpc: Drop unused variable
i2c: nomadik: Remove a useless call in the remove function
i2c: xiic: Don't try to handle more interrupt events after error
Linus Torvalds [Sat, 8 Jul 2023 19:08:39 +0000 (12:08 -0700)]
Merge tag 'hardening-v6.5-rc1-fixes' of git://git./linux/kernel/git/kees/linux
Pull hardening fixes from Kees Cook:
- Check for NULL bdev in LoadPin (Matthias Kaehlcke)
- Revert unwanted KUnit FORTIFY build default
- Fix 1-element array causing boot warnings with xhci-hub
* tag 'hardening-v6.5-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
usb: ch9: Replace bmSublinkSpeedAttr 1-element array with flexible array
Revert "fortify: Allow KUnit test to build without FORTIFY"
dm: verity-loadpin: Add NULL pointer check for 'bdev' parameter
Anup Sharma [Fri, 12 May 2023 20:24:34 +0000 (01:54 +0530)]
ntb: hw: amd: Fix debugfs_create_dir error checking
The debugfs_create_dir function returns ERR_PTR in case of error, and the
only correct way to check if an error occurred is 'IS_ERR' inline function.
This patch will replace the null-comparison with IS_ERR.
Signed-off-by: Anup Sharma <anupnewsmail@gmail.com>
Suggested-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Linus Torvalds [Sat, 8 Jul 2023 17:21:51 +0000 (10:21 -0700)]
Merge tag 'perf-tools-for-v6.5-2-2023-07-06' of git://git./linux/kernel/git/perf/perf-tools-next
Pull more perf tools updates from Namhyung Kim:
"These are remaining changes and fixes for this cycle.
Build:
- Allow generating vmlinux.h from BTF using `make GEN_VMLINUX_H=1`
and skip if the vmlinux has no BTF.
- Replace deprecated clang -target xxx option by --target=xxx.
perf record:
- Print event attributes with well known type and config symbols in
the debug output like below:
# perf record -e cycles,cpu-clock -C0 -vv true
<SNIP>
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0 (PERF_COUNT_HW_CPU_CYCLES)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 1 (PERF_TYPE_SOFTWARE)
size 136
config 0 (PERF_COUNT_SW_CPU_CLOCK)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
- Update AMD IBS event error message since it now support per-process
profiling but no priviledge filters.
$ sudo perf record -e ibs_op//k -C 0
Error:
AMD IBS doesn't support privilege filtering. Try again without
the privilege modifiers (like 'k') at the end.
perf lock contention:
- Support CSV style output using -x option
$ sudo perf lock con -ab -x, sleep 1
# output: contended, total wait, max wait, avg wait, type, caller
19, 194232, 21415, 10222, spinlock, process_one_work+0x1f0
15, 162748, 23843, 10849, rwsem:R, do_user_addr_fault+0x40e
4, 86740, 23415, 21685, rwlock:R, ep_poll_callback+0x2d
1, 84281, 84281, 84281, mutex, iwl_mvm_async_handlers_wk+0x135
8, 67608, 27404, 8451, spinlock, __queue_work+0x174
3, 58616, 31125, 19538, rwsem:W, do_mprotect_pkey+0xff
3, 52953, 21172, 17651, rwlock:W, do_epoll_wait+0x248
2, 30324, 19704, 15162, rwsem:R, do_madvise+0x3ad
1, 24619, 24619, 24619, spinlock, rcu_core+0xd4
- Add --output option to save the data to a file not to be interfered
by other debug messages.
Test:
- Fix event parsing test on ARM where there's no raw PMU nor supports
PERF_PMU_CAP_EXTENDED_HW_TYPE.
- Update the lock contention test case for CSV output.
- Fix a segfault in the daemon command test.
Vendor events (JSON):
- Add has_event() to check if the given event is available on system
at runtime. On Intel machines, some transaction events may not be
present when TSC extensions are disabled.
- Update Intel event metrics.
Misc:
- Sort symbols by name using an external array of pointers instead of
a rbtree node in the symbol. This will save 16-bytes or 24-bytes
per symbol whether the sorting is actually requested or not.
- Fix unwinding DWARF callstacks using libdw when --symfs option is
used"
* tag 'perf-tools-for-v6.5-2-2023-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next: (38 commits)
perf test: Fix event parsing test when PERF_PMU_CAP_EXTENDED_HW_TYPE isn't supported.
perf test: Fix event parsing test on Arm
perf evsel amd: Fix IBS error message
perf: unwind: Fix symfs with libdw
perf symbol: Fix uninitialized return value in symbols__find_by_name()
perf test: Test perf lock contention CSV output
perf lock contention: Add --output option
perf lock contention: Add -x option for CSV style output
perf lock: Remove stale comments
perf vendor events intel: Update tigerlake to 1.13
perf vendor events intel: Update skylakex to 1.31
perf vendor events intel: Update skylake to 57
perf vendor events intel: Update sapphirerapids to 1.14
perf vendor events intel: Update icelakex to 1.21
perf vendor events intel: Update icelake to 1.19
perf vendor events intel: Update cascadelakex to 1.19
perf vendor events intel: Update meteorlake to 1.03
perf vendor events intel: Add rocketlake events/metrics
perf vendor metrics intel: Make transaction metrics conditional
perf jevents: Support for has_event function
...
Linus Torvalds [Sat, 8 Jul 2023 17:02:24 +0000 (10:02 -0700)]
Merge tag 'bitmap-6.5-rc1' of https://github.com/norov/linux
Pull bitmap updates from Yury Norov:
"Fixes for different bitmap pieces:
- lib/test_bitmap: increment failure counter properly
The tests that don't use expect_eq() macro to determine that a test
is failured must increment failed_tests explicitly.
- lib/bitmap: drop optimization of bitmap_{from,to}_arr64
bitmap_{from,to}_arr64() optimization is overly optimistic
on 32-bit LE architectures when it's wired to
bitmap_copy_clear_tail().
- nodemask: Drop duplicate check in for_each_node_mask()
As the return value type of first_node() became unsigned, the node
>= 0 became unnecessary.
- cpumask: fix function description kernel-doc notation
- MAINTAINERS: Add bits.h and bitfield.h to the BITMAP API record
Add linux/bits.h and linux/bitfield.h for visibility"
* tag 'bitmap-6.5-rc1' of https://github.com/norov/linux:
MAINTAINERS: Add bitfield.h to the BITMAP API record
MAINTAINERS: Add bits.h to the BITMAP API record
cpumask: fix function description kernel-doc notation
nodemask: Drop duplicate check in for_each_node_mask()
lib/bitmap: drop optimization of bitmap_{from,to}_arr64
lib/test_bitmap: increment failure counter properly
Geert Uytterhoeven [Wed, 5 Jul 2023 14:54:04 +0000 (16:54 +0200)]
lib: dhry: fix sleeping allocations inside non-preemptable section
The Smatch static checker reports the following warnings:
lib/dhry_run.c:38 dhry_benchmark() warn: sleeping in atomic context
lib/dhry_run.c:43 dhry_benchmark() warn: sleeping in atomic context
Indeed, dhry() does sleeping allocations inside the non-preemptable
section delimited by get_cpu()/put_cpu().
Fix this by using atomic allocations instead.
Add error handling, as atomic these allocations may fail.
Link: https://lkml.kernel.org/r/bac6d517818a7cd8efe217c1ad649fffab9cc371.1688568764.git.geert+renesas@glider.be
Fixes:
13684e966d46283e ("lib: dhry: fix unstable smp_processor_id(_) usage")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/
0469eb3a-02eb-4b41-b189-
de20b931fa56@moroto.mountain
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Andrey Konovalov [Wed, 5 Jul 2023 12:44:02 +0000 (14:44 +0200)]
kasan, slub: fix HW_TAGS zeroing with slub_debug
Commit
946fa0dbf2d8 ("mm/slub: extend redzone check to extra allocated
kmalloc space than requested") added precise kmalloc redzone poisoning to
the slub_debug functionality.
However, this commit didn't account for HW_TAGS KASAN fully initializing
the object via its built-in memory initialization feature. Even though
HW_TAGS KASAN memory initialization contains special memory initialization
handling for when slub_debug is enabled, it does not account for in-object
slub_debug redzones. As a result, HW_TAGS KASAN can overwrite these
redzones and cause false-positive slub_debug reports.
To fix the issue, avoid HW_TAGS KASAN memory initialization when
slub_debug is enabled altogether. Implement this by moving the
__slub_debug_enabled check to slab_post_alloc_hook. Common slab code
seems like a more appropriate place for a slub_debug check anyway.
Link: https://lkml.kernel.org/r/678ac92ab790dba9198f9ca14f405651b97c8502.1688561016.git.andreyknvl@google.com
Fixes:
946fa0dbf2d8 ("mm/slub: extend redzone check to extra allocated kmalloc space than requested")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: Will Deacon <will@kernel.org>
Acked-by: Marco Elver <elver@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: kasan-dev@googlegroups.com
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Andrey Konovalov [Tue, 4 Jul 2023 00:52:05 +0000 (02:52 +0200)]
kasan: fix type cast in memory_is_poisoned_n
Commit
bb6e04a173f0 ("kasan: use internal prototypes matching gcc-13
builtins") introduced a bug into the memory_is_poisoned_n implementation:
it effectively removed the cast to a signed integer type after applying
KASAN_GRANULE_MASK.
As a result, KASAN started failing to properly check memset, memcpy, and
other similar functions.
Fix the bug by adding the cast back (through an additional signed integer
variable to make the code more readable).
Link: https://lkml.kernel.org/r/8c9e0251c2b8b81016255709d4ec42942dcaf018.1688431866.git.andreyknvl@google.com
Fixes:
bb6e04a173f0 ("kasan: use internal prototypes matching gcc-13 builtins")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Heiko Stuebner [Tue, 4 Jul 2023 16:39:19 +0000 (18:39 +0200)]
mailmap: add entries for Heiko Stuebner
I am going to lose my vrull.eu address at the end of july, and while
adding it to mailmap I also realised that there are more old addresses
from me dangling, so update .mailmap for all of them.
Link: https://lkml.kernel.org/r/20230704163919.1136784-3-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Heiko Stuebner [Tue, 4 Jul 2023 16:39:18 +0000 (18:39 +0200)]
mailmap: update manpage link
Patch series "Update .mailmap for my work address and fix manpage".
While updating mailmap for the going-away address, I also found that on
current systems the manpage linked from the header comment changed.
And in fact it looks like the git mailmap feature got its own manpage.
This patch (of 2):
On recent systems the git-shortlog manpage only tells people to
See gitmailmap(5)
So instead of sending people on a scavenger hunt, put that info into the
header directly. Though keep the old reference around for older systems.
Link: https://lkml.kernel.org/r/20230704163919.1136784-1-heiko@sntech.de
Link: https://lkml.kernel.org/r/20230704163919.1136784-2-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Liu Shixin [Tue, 4 Jul 2023 10:19:42 +0000 (18:19 +0800)]
bootmem: remove the vmemmap pages from kmemleak in free_bootmem_page
commit
dd0ff4d12dd2 ("bootmem: remove the vmemmap pages from kmemleak in
put_page_bootmem") fix an overlaps existing problem of kmemleak. But the
problem still existed when HAVE_BOOTMEM_INFO_NODE is disabled, because in
this case, free_bootmem_page() will call free_reserved_page() directly.
Fix the problem by adding kmemleak_free_part() in free_bootmem_page() when
HAVE_BOOTMEM_INFO_NODE is disabled.
Link: https://lkml.kernel.org/r/20230704101942.2819426-1-liushixin2@huawei.com
Fixes:
f41f2ed43ca5 ("mm: hugetlb: free the vmemmap pages associated with each HugeTLB page")
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Randy Dunlap [Tue, 4 Jul 2023 05:44:10 +0000 (22:44 -0700)]
MAINTAINERS: add linux-next info
Add linux-next info to MAINTAINERS for ease of finding this data.
Link: https://lkml.kernel.org/r/20230704054410.12527-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Markus Schneider-Pargmann [Wed, 28 Jun 2023 08:13:41 +0000 (10:13 +0200)]
mailmap: add Markus Schneider-Pargmann
Add my old mail address and update my name.
Link: https://lkml.kernel.org/r/20230628081341.3470229-1-msp@baylibre.com
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Matthew Wilcox (Oracle) [Wed, 28 Jun 2023 18:55:48 +0000 (19:55 +0100)]
writeback: account the number of pages written back
nr_to_write is a count of pages, so we need to decrease it by the number
of pages in the folio we just wrote, not by 1. Most callers specify
either LONG_MAX or 1, so are unaffected, but writeback_sb_inodes() might
end up writing 512x as many pages as it asked for.
Dave added:
: XFS is the only filesystem this would affect, right? AFAIA, nothing
: else enables large folios and uses writeback through
: write_cache_pages() at this point...
:
: In which case, I'd be surprised if much difference, if any, gets
: noticed by anyone.
Link: https://lkml.kernel.org/r/20230628185548.981888-1-willy@infradead.org
Fixes:
793917d997df ("mm/readahead: Add large folio readahead")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Peter Collingbourne [Tue, 23 May 2023 00:43:08 +0000 (17:43 -0700)]
mm: call arch_swap_restore() from do_swap_page()
Commit
c145e0b47c77 ("mm: streamline COW logic in do_swap_page()") moved
the call to swap_free() before the call to set_pte_at(), which meant that
the MTE tags could end up being freed before set_pte_at() had a chance to
restore them. Fix it by adding a call to the arch_swap_restore() hook
before the call to swap_free().
Link: https://lkml.kernel.org/r/20230523004312.1807357-2-pcc@google.com
Link: https://linux-review.googlesource.com/id/I6470efa669e8bd2f841049b8c61020c510678965
Fixes:
c145e0b47c77 ("mm: streamline COW logic in do_swap_page()")
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reported-by: Qun-wei Lin <Qun-wei.Lin@mediatek.com>
Closes: https://lore.kernel.org/all/
5050805753ac469e8d727c797c2218a9d780d434.camel@mediatek.com/
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org> [6.1+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Vincent Whitchurch [Thu, 29 Jun 2023 14:17:57 +0000 (16:17 +0200)]
squashfs: fix cache race with migration
Migration replaces the page in the mapping before copying the contents and
the flags over from the old page, so check that the page in the page cache
is really up to date before using it. Without this, stressing squashfs
reads with parallel compaction sometimes results in squashfs reporting
data corruption.
Link: https://lkml.kernel.org/r/20230629-squashfs-cache-migration-v1-1-d50ebe55099d@axis.com
Fixes:
e994f5b677ee ("squashfs: cache partial compressed blocks")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Phillip Lougher <phillip@squashfs.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
John Hubbard [Sat, 1 Jul 2023 01:04:42 +0000 (18:04 -0700)]
mm/hugetlb.c: fix a bug within a BUG(): inconsistent pte comparison
The following crash happens for me when running the -mm selftests (below).
Specifically, it happens while running the uffd-stress subtests:
kernel BUG at mm/hugetlb.c:7249!
invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 3238 Comm: uffd-stress Not tainted 6.4.0-hubbard-github+ #109
Hardware name: ASUS X299-A/PRIME X299-A, BIOS 1503 08/03/2018
RIP: 0010:huge_pte_alloc+0x12c/0x1a0
...
Call Trace:
<TASK>
? __die_body+0x63/0xb0
? die+0x9f/0xc0
? do_trap+0xab/0x180
? huge_pte_alloc+0x12c/0x1a0
? do_error_trap+0xc6/0x110
? huge_pte_alloc+0x12c/0x1a0
? handle_invalid_op+0x2c/0x40
? huge_pte_alloc+0x12c/0x1a0
? exc_invalid_op+0x33/0x50
? asm_exc_invalid_op+0x16/0x20
? __pfx_put_prev_task_idle+0x10/0x10
? huge_pte_alloc+0x12c/0x1a0
hugetlb_fault+0x1a3/0x1120
? finish_task_switch+0xb3/0x2a0
? lock_is_held_type+0xdb/0x150
handle_mm_fault+0xb8a/0xd40
? find_vma+0x5d/0xa0
do_user_addr_fault+0x257/0x5d0
exc_page_fault+0x7b/0x1f0
asm_exc_page_fault+0x22/0x30
That happens because a BUG() statement in huge_pte_alloc() attempts to
check that a pte, if present, is a hugetlb pte, but it does so in a
non-lockless-safe manner that leads to a false BUG() report.
We got here due to a couple of bugs, each of which by itself was not quite
enough to cause a problem:
First of all, before commit
c33c794828f2("mm: ptep_get() conversion"), the
BUG() statement in huge_pte_alloc() was itself fragile: it relied upon
compiler behavior to only read the pte once, despite using it twice in the
same conditional.
Next, commit
c33c794828f2 ("mm: ptep_get() conversion") broke that
delicate situation, by causing all direct pte reads to be done via
READ_ONCE(). And so READ_ONCE() got called twice within the same BUG()
conditional, leading to comparing (potentially, occasionally) different
versions of the pte, and thus to false BUG() reports.
Fix this by taking a single snapshot of the pte before using it in the
BUG conditional.
Now, that commit is only partially to blame here but, people doing
bisections will invariably land there, so this will help them find a fix
for a real crash. And also, the previous behavior was unlikely to ever
expose this bug--it was fragile, yet not actually broken.
So that's why I chose this commit for the Fixes tag, rather than the
commit that created the original BUG() statement.
Link: https://lkml.kernel.org/r/20230701010442.2041858-1-jhubbard@nvidia.com
Fixes:
c33c794828f2 ("mm: ptep_get() conversion")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: James Houghton <jthoughton@google.com>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: SeongJae Park <sj@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Anthony Iliopoulos [Wed, 28 Jun 2023 01:34:37 +0000 (03:34 +0200)]
docs: update ocfs2-devel mailing list address
The ocfs2-devel mailing list has been migrated to the kernel.org
infrastructure, update all related documentation pointers to reflect the
change.
Link: https://lkml.kernel.org/r/20230628013437.47030-3-ailiop@suse.com
Signed-off-by: Anthony Iliopoulos <ailiop@suse.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Mark Fasheh <mark@fasheh.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Anthony Iliopoulos [Wed, 28 Jun 2023 01:34:36 +0000 (03:34 +0200)]
MAINTAINERS: update ocfs2-devel mailing list address
The ocfs2-devel mailing list has been migrated to the kernel.org
infrastructure, update the related entry to reflect the change.
Link: https://lkml.kernel.org/r/20230628013437.47030-2-ailiop@suse.com
Signed-off-by: Anthony Iliopoulos <ailiop@suse.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Suren Baghdasaryan [Thu, 6 Jul 2023 01:14:00 +0000 (18:14 -0700)]
mm: disable CONFIG_PER_VMA_LOCK until its fixed
A memory corruption was reported in [1] with bisection pointing to the
patch [2] enabling per-VMA locks for x86. Disable per-VMA locks config to
prevent this issue until the fix is confirmed. This is expected to be a
temporary measure.
[1] https://bugzilla.kernel.org/show_bug.cgi?id=217624
[2] https://lore.kernel.org/all/
20230227173632.3292573-30-surenb@google.com
Link: https://lkml.kernel.org/r/20230706011400.2949242-3-surenb@google.com
Reported-by: Jiri Slaby <jirislaby@kernel.org>
Closes: https://lore.kernel.org/all/
dbdef34c-3a07-5951-e1ae-
e9c6e3cdf51b@kernel.org/
Reported-by: Jacob Young <jacobly.alt@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217624
Fixes:
0bff0aaea03e ("x86/mm: try VMA lock-based page fault handling first")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Holger Hoffstätte <holger@applied-asynchrony.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Suren Baghdasaryan [Thu, 6 Jul 2023 01:13:59 +0000 (18:13 -0700)]
fork: lock VMAs of the parent process when forking
Patch series "Avoid memory corruption caused by per-VMA locks", v4.
A memory corruption was reported in [1] with bisection pointing to the
patch [2] enabling per-VMA locks for x86. Based on the reproducer
provided in [1] we suspect this is caused by the lack of VMA locking while
forking a child process.
Patch 1/2 in the series implements proper VMA locking during fork. I
tested the fix locally using the reproducer and was unable to reproduce
the memory corruption problem.
This fix can potentially regress some fork-heavy workloads. Kernel build
time did not show noticeable regression on a 56-core machine while a
stress test mapping 10000 VMAs and forking 5000 times in a tight loop
shows ~7% regression. If such fork time regression is unacceptable,
disabling CONFIG_PER_VMA_LOCK should restore its performance. Further
optimizations are possible if this regression proves to be problematic.
Patch 2/2 disables per-VMA locks until the fix is tested and verified.
This patch (of 2):
When forking a child process, parent write-protects an anonymous page and
COW-shares it with the child being forked using copy_present_pte().
Parent's TLB is flushed right before we drop the parent's mmap_lock in
dup_mmap(). If we get a write-fault before that TLB flush in the parent,
and we end up replacing that anonymous page in the parent process in
do_wp_page() (because, COW-shared with the child), this might lead to some
stale writable TLB entries targeting the wrong (old) page. Similar issue
happened in the past with userfaultfd (see flush_tlb_page() call inside
do_wp_page()).
Lock VMAs of the parent process when forking a child, which prevents
concurrent page faults during fork operation and avoids this issue. This
fix can potentially regress some fork-heavy workloads. Kernel build time
did not show noticeable regression on a 56-core machine while a stress
test mapping 10000 VMAs and forking 5000 times in a tight loop shows ~7%
regression. If such fork time regression is unacceptable, disabling
CONFIG_PER_VMA_LOCK should restore its performance. Further optimizations
are possible if this regression proves to be problematic.
Link: https://lkml.kernel.org/r/20230706011400.2949242-1-surenb@google.com
Link: https://lkml.kernel.org/r/20230706011400.2949242-2-surenb@google.com
Fixes:
0bff0aaea03e ("x86/mm: try VMA lock-based page fault handling first")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Reported-by: Jiri Slaby <jirislaby@kernel.org>
Closes: https://lore.kernel.org/all/
dbdef34c-3a07-5951-e1ae-
e9c6e3cdf51b@kernel.org/
Reported-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Closes: https://lore.kernel.org/all/
b198d649-f4bf-b971-31d0-
e8433ec2a34c@applied-asynchrony.com/
Reported-by: Jacob Young <jacobly.alt@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=
3D217624
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Tested-by: Holger Hoffsttte <holger@applied-asynchrony.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Geoff Levand [Thu, 29 Jun 2023 23:32:44 +0000 (23:32 +0000)]
ntb.rst: Fix copy and paste error
It seems the text for the NTB MSI Test Client section was copied from the
NTB Tool Test Client, but was not updated for the new section. Corrects
the NTB MSI Test Client section text.
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Geoff Levand [Fri, 30 Jun 2023 21:58:46 +0000 (21:58 +0000)]
ntb_netdev: Fix module_init problem
With both the ntb_transport_init and the ntb_netdev_init_module routines in the
module_init init group, the ntb_netdev_init_module routine can be called before
the ntb_transport_init routine that it depends on is called. To assure the
proper initialization order put ntb_netdev_init_module in the late_initcall
group.
Fixes runtime errors where the ntb_netdev_init_module call fails with ENODEV.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Cai Huoqing [Fri, 24 Mar 2023 01:32:20 +0000 (09:32 +0800)]
ntb: intel: Remove redundant pci_clear_master
Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Cai Huoqing [Fri, 24 Mar 2023 01:32:19 +0000 (09:32 +0800)]
ntb: epf: Remove redundant pci_clear_master
Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Cai Huoqing [Fri, 24 Mar 2023 01:32:18 +0000 (09:32 +0800)]
ntb_hw_amd: Remove redundant pci_clear_master
Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Bjorn Helgaas [Tue, 7 Mar 2023 20:30:21 +0000 (14:30 -0600)]
ntb: idt: drop redundant pci_enable_pcie_error_reporting()
pci_enable_pcie_error_reporting() enables the device to send ERR_*
Messages. Since
f26e58bf6f54 ("PCI/AER: Enable error reporting when AER is
native"), the PCI core does this for all devices during enumeration, so the
driver doesn't need to do it itself.
Remove the redundant pci_enable_pcie_error_reporting() call from the
driver. Also remove the corresponding pci_disable_pcie_error_reporting()
from the driver .remove() path.
Note that this only controls ERR_* Messages from the device. An ERR_*
Message may cause the Root Port to generate an interrupt, depending on the
AER Root Error Command register managed by the AER service driver.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Palmer Dabbelt [Thu, 13 Oct 2022 21:46:38 +0000 (14:46 -0700)]
MAINTAINERS: git://github -> https://github.com for jonmason
Github deprecated the git:// links about a year ago, so let's move to
the https:// URLs instead.
Reported-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://github.blog/2021-09-01-improving-git-protocol-security-github/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
ruanjinjie [Wed, 9 Nov 2022 09:28:52 +0000 (17:28 +0800)]
NTB: EPF: fix possible memory leak in pci_vntb_probe()
As ntb_register_device() don't handle error of device_register(),
if ntb_register_device() returns error in pci_vntb_probe(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop the
reference count that was set in device_initialize()
when it fails, so the name can be freed in kobject_cleanup().
Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Jiasheng Jiang [Tue, 22 Nov 2022 03:32:44 +0000 (11:32 +0800)]
NTB: ntb_tool: Add check for devm_kcalloc
As the devm_kcalloc may return NULL pointer,
it should be better to add check for the return
value, as same as the others.
Fixes:
7f46c8b3a552 ("NTB: ntb_tool: Add full multi-port NTB API support")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Yang Yingliang [Thu, 10 Nov 2022 15:19:17 +0000 (23:19 +0800)]
NTB: ntb_transport: fix possible memory leak while device_register() fails
If device_register() returns error, the name allocated by
dev_set_name() need be freed. As comment of device_register()
says, it should use put_device() to give up the reference in
the error path. So fix this by calling put_device(), then the
name can be freed in kobject_cleanup(), and client_dev is freed
in ntb_transport_client_release().
Fixes:
fce8a7bb5b4b ("PCI-Express Non-Transparent Bridge Support")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Yuan Can [Sat, 5 Nov 2022 09:43:22 +0000 (09:43 +0000)]
ntb: intel: Fix error handling in intel_ntb_pci_driver_init()
A problem about ntb_hw_intel create debugfs failed is triggered with the
following log given:
[ 273.112733] Intel(R) PCI-E Non-Transparent Bridge Driver 2.0
[ 273.115342] debugfs: Directory 'ntb_hw_intel' with parent '/' already present!
The reason is that intel_ntb_pci_driver_init() returns
pci_register_driver() directly without checking its return value, if
pci_register_driver() failed, it returns without destroy the newly created
debugfs, resulting the debugfs of ntb_hw_intel can never be created later.
intel_ntb_pci_driver_init()
debugfs_create_dir() # create debugfs directory
pci_register_driver()
driver_register()
bus_add_driver()
priv = kzalloc(...) # OOM happened
# return without destroy debugfs directory
Fix by removing debugfs when pci_register_driver() returns error.
Fixes:
e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Yuan Can [Sat, 5 Nov 2022 09:43:09 +0000 (09:43 +0000)]
NTB: amd: Fix error handling in amd_ntb_pci_driver_init()
A problem about ntb_hw_amd create debugfs failed is triggered with the
following log given:
[ 618.431232] AMD(R) PCI-E Non-Transparent Bridge Driver 1.0
[ 618.433284] debugfs: Directory 'ntb_hw_amd' with parent '/' already present!
The reason is that amd_ntb_pci_driver_init() returns pci_register_driver()
directly without checking its return value, if pci_register_driver()
failed, it returns without destroy the newly created debugfs, resulting
the debugfs of ntb_hw_amd can never be created later.
amd_ntb_pci_driver_init()
debugfs_create_dir() # create debugfs directory
pci_register_driver()
driver_register()
bus_add_driver()
priv = kzalloc(...) # OOM happened
# return without destroy debugfs directory
Fix by removing debugfs when pci_register_driver() returns error.
Fixes:
a1b3695820aa ("NTB: Add support for AMD PCI-Express Non-Transparent Bridge")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Yuan Can [Sat, 5 Nov 2022 09:43:01 +0000 (09:43 +0000)]
ntb: idt: Fix error handling in idt_pci_driver_init()
A problem about ntb_hw_idt create debugfs failed is triggered with the
following log given:
[ 1236.637636] IDT PCI-E Non-Transparent Bridge Driver 2.0
[ 1236.639292] debugfs: Directory 'ntb_hw_idt' with parent '/' already present!
The reason is that idt_pci_driver_init() returns pci_register_driver()
directly without checking its return value, if pci_register_driver()
failed, it returns without destroy the newly created debugfs, resulting
the debugfs of ntb_hw_idt can never be created later.
idt_pci_driver_init()
debugfs_create_dir() # create debugfs directory
pci_register_driver()
driver_register()
bus_add_driver()
priv = kzalloc(...) # OOM happened
# return without destroy debugfs directory
Fix by removing debugfs when pci_register_driver() returns error.
Fixes:
bf2a952d31d2 ("NTB: Add IDT 89HPESxNTx PCIe-switches support")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Darrick J. Wong [Fri, 7 Jul 2023 01:00:59 +0000 (18:00 -0700)]
xfs: fix uninit warning in xfs_growfs_data
Quiet down this gcc warning:
fs/xfs/xfs_fsops.c: In function ‘xfs_growfs_data’:
fs/xfs/xfs_fsops.c:219:21: error: ‘lastag_extended’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
219 | if (lastag_extended) {
| ^~~~~~~~~~~~~~~
fs/xfs/xfs_fsops.c:100:33: note: ‘lastag_extended’ was declared here
100 | bool lastag_extended;
| ^~~~~~~~~~~~~~~
By setting its value explicitly. From code analysis I don't think this
is a real problem, but I have better things to do than analyse this
closely.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Linus Torvalds [Fri, 7 Jul 2023 22:59:33 +0000 (15:59 -0700)]
Merge tag 'mmc-v6.5-2' of git://git./linux/kernel/git/ulfh/mmc
Pull mmc fix from Ulf Hansson:
- Fix regression of detection of eMMC/SD/SDIO cards
* tag 'mmc-v6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: Revert "mmc: core: Allow mmc_start_host() synchronously detect a card"
Linus Torvalds [Fri, 7 Jul 2023 22:40:17 +0000 (15:40 -0700)]
Merge tag 'sound-fix-6.5-rc1' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes that have been gathered recently:
- Two code-typo fixes in the new UMP core
- A fix in jack reporting to avoid the usage of mutex
- A potential data race fix in HD-audio core regmap code
- A potential data race fix in PCM allocation helper code
- HD-audio quirks for ASUS, Clevo and Unis machines
- Constifications in FireWire drivers"
* tag 'sound-fix-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Add quirk for ASUS ROG GZ301V
ALSA: jack: Fix mutex call in snd_jack_report()
ALSA: seq: ump: fix typo in system_2p_ev_to_ump_midi1()
ALSA: hda/realtek: Whitespace fix
ALSA: hda/realtek: Add quirk for ASUS ROG G614Jx
ALSA: hda/realtek: Amend G634 quirk to enable rear speakers
ALSA: hda/realtek: Add quirk for ASUS ROG GA402X
ALSA: hda/realtek: Add quirk for ASUS ROG GX650P
ALSA: pcm: Fix potential data race at PCM memory allocation helpers
ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()
ALSA: hda/realtek: Add quirks for Unis H3C Desktop B760 & Q760
ALSA: hda/realtek: Add quirk for Clevo NPx0SNx
ALSA: ump: Correct wrong byte size at converting a UMP System message
ALSA: fireface: make read-only const array for model names static
ALSA: oxfw: make read-only const array models static
Linus Torvalds [Fri, 7 Jul 2023 22:07:20 +0000 (15:07 -0700)]
Merge tag 'ceph-for-6.5-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"A bunch of CephFS fixups from Xiubo, mostly around dropping caps,
along with a fix for a regression in the readahead handling code which
sneaked in with the switch to netfs helpers"
* tag 'ceph-for-6.5-rc1' of https://github.com/ceph/ceph-client:
ceph: don't let check_caps skip sending responses for revoke msgs
ceph: issue a cap release immediately if no cap exists
ceph: trigger to flush the buffer when making snapshot
ceph: fix blindly expanding the readahead windows
ceph: add a dedicated private data for netfs rreq
ceph: voluntarily drop Xx caps for requests those touch parent mtime
ceph: try to dump the msgs when decoding fails
ceph: only send metrics when the MDS rank is ready
Linus Torvalds [Fri, 7 Jul 2023 21:59:38 +0000 (14:59 -0700)]
Merge tag 'ntfs3_for_6.5' of https://github.com/Paragon-Software-Group/linux-ntfs3
Pull ntfs3 updates from Konstantin Komarov:
"Updates:
- support /proc/fs/ntfs3/<dev>/volinfo and label
- alternative boot if primary boot is corrupted
- small optimizations
Fixes:
- fix endian problems
- fix logic errors
- code refactoring and reformatting"
* tag 'ntfs3_for_6.5' of https://github.com/Paragon-Software-Group/linux-ntfs3:
fs/ntfs3: Correct mode for label entry inside /proc/fs/ntfs3/
fs/ntfs3: Add support /proc/fs/ntfs3/<dev>/volinfo and /proc/fs/ntfs3/<dev>/label
fs/ntfs3: Fix endian problem
fs/ntfs3: Add ability to format new mft records with bigger/smaller header
fs/ntfs3: Code refactoring
fs/ntfs3: Code formatting
fs/ntfs3: Do not update primary boot in ntfs_init_from_boot()
fs/ntfs3: Alternative boot if primary boot is corrupted
fs/ntfs3: Mark ntfs dirty when on-disk struct is corrupted
fs/ntfs3: Fix ntfs_atomic_open
fs/ntfs3: Correct checking while generating attr_list
fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list()
fs: ntfs3: Fix possible null-pointer dereferences in mi_read()
fs/ntfs3: Return error for inconsistent extended attributes
fs/ntfs3: Enhance sanity check while generating attr_list
fs/ntfs3: Use wrapper i_blocksize() in ntfs_zero_range()
ntfs: Fix panic about slab-out-of-bounds caused by ntfs_listxattr()
Linus Torvalds [Fri, 7 Jul 2023 21:51:37 +0000 (14:51 -0700)]
Merge tag 'fsnotify_for_v6.5-rc2' of git://git./linux/kernel/git/jack/linux-fs
Pull fsnotify fix from Jan Kara:
"A fix for fanotify to disallow creating of mount or superblock marks
for kernel internal pseudo filesystems"
* tag 'fsnotify_for_v6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: disallow mount/sb marks on kernel internal pseudo fs
Linus Torvalds [Fri, 7 Jul 2023 17:07:19 +0000 (10:07 -0700)]
Merge tag 'riscv-for-linus-6.5-mw2' of git://git./linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
- A bunch of fixes/cleanups from the first part of the merge window,
mostly related to ACPI and vector as those were large
- Some documentation improvements, mostly related to the new code
- The "riscv,isa" DT key is deprecated
- Support for link-time dead code elimination
- Support for minor fault registration in userfaultd
- A handful of cleanups around CMO alternatives
* tag 'riscv-for-linus-6.5-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (23 commits)
riscv: mm: mark noncoherent_supported as __ro_after_init
riscv: mm: mark CBO relate initialization funcs as __init
riscv: errata: thead: only set cbom size & noncoherent during boot
riscv: Select HAVE_ARCH_USERFAULTFD_MINOR
RISC-V: Document the ISA string parsing rules for ACPI
risc-v: Fix order of IPI enablement vs RCU startup
mm: riscv: fix an unsafe pte read in huge_pte_alloc()
dt-bindings: riscv: deprecate riscv,isa
RISC-V: drop error print from riscv_hartid_to_cpuid()
riscv: Discard vector state on syscalls
riscv: move memblock_allow_resize() after linear mapping is ready
riscv: Enable ARCH_SUSPEND_POSSIBLE for s2idle
riscv: vdso: include vdso/vsyscall.h for vdso_data
selftests: Test RISC-V Vector's first-use handler
riscv: vector: clear V-reg in the first-use trap
riscv: vector: only enable interrupts in the first-use trap
RISC-V: Fix up some vector state related build failures
RISC-V: Document that V registers are clobbered on syscalls
riscv: disable HAVE_LD_DEAD_CODE_DATA_ELIMINATION for LLD
riscv: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION
...
Linus Torvalds [Fri, 7 Jul 2023 17:00:30 +0000 (10:00 -0700)]
Merge tag 'powerpc-6.5-2' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix PCIe MEM size for pci2 node on Turris 1.x boards
- Two minor build fixes
Thanks to Christophe Leroy, Douglas Anderson, Pali Rohár, Petr Mladek,
and Randy Dunlap.
* tag 'powerpc-6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: dts: turris1x.dts: Fix PCIe MEM size for pci2 node
powerpc: Include asm/nmi.c in mobility.c for watchdog_hardlockup_set_timeout_pct()
powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y
Linus Torvalds [Fri, 7 Jul 2023 16:55:31 +0000 (09:55 -0700)]
Merge tag 'apparmor-pr-2023-07-06' of git://git./linux/kernel/git/jj/linux-apparmor
Pull apparmor updates from John Johansen:
- fix missing error check for rhashtable_insert_fast
- add missing failure check in compute_xmatch_perms
- fix policy_compat permission remap with extended permissions
- fix profile verification and enable it
- fix kzalloc perms tables for shared dfas
- Fix kernel-doc header for verify_dfa_accept_index
- aa_buffer: Convert 1-element array to flexible array
- Return directly after a failed kzalloc() in two functions
- fix use of strcpy in policy_unpack_test
- fix kernel-doc complaints
- Fix some kernel-doc comments
* tag 'apparmor-pr-2023-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor: Fix kernel-doc header for verify_dfa_accept_index
apparmor: fix: kzalloc perms tables for shared dfas
apparmor: fix profile verification and enable it
apparmor: fix policy_compat permission remap with extended permissions
apparmor: aa_buffer: Convert 1-element array to flexible array
apparmor: add missing failure check in compute_xmatch_perms
apparmor: fix missing error check for rhashtable_insert_fast
apparmor: Return directly after a failed kzalloc() in two functions
AppArmor: Fix some kernel-doc comments
apparmor: fix use of strcpy in policy_unpack_test
apparmor: fix kernel-doc complaints
Thomas Gleixner [Wed, 5 Jul 2023 08:59:23 +0000 (10:59 +0200)]
x86/smp: Don't send INIT to boot CPU
Parking CPUs in INIT works well, except for the crash case when the CPU
which invokes smp_park_other_cpus_in_init() is not the boot CPU. Sending
INIT to the boot CPU resets the whole machine.
Prevent this by validating that this runs on the boot CPU. If not fall back
and let CPUs hang in HLT.
Fixes:
45e34c8af58f ("x86/smp: Put CPUs into INIT on shutdown if possible")
Reported-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Baokun Li <libaokun1@huawei.com>
Link: https://lore.kernel.org/r/87ttui91jo.ffs@tglx
Thomas Bogendoerfer [Thu, 6 Jul 2023 16:36:10 +0000 (18:36 +0200)]
MIPS: kvm: Fix build error with KVM_MIPS_DEBUG_COP0_COUNTERS enabled
Commit
e4de20576986 ("MIPS: KVM: Fix NULL pointer dereference") missed
converting one place accessing cop0 registers, which results in a build
error, if KVM_MIPS_DEBUG_COP0_COUNTERS is enabled.
Fixes:
e4de20576986 ("MIPS: KVM: Fix NULL pointer dereference")
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Luke D. Jones [Thu, 6 Jul 2023 22:33:23 +0000 (10:33 +1200)]
ALSA: hda/realtek: Add quirk for ASUS ROG GZ301V
Adds the required quirk to enable the Cirrus amp and correct pins
on the ASUS ROG GZ301V series which uses an SPI connected Cirrus amp.
While this works if the related _DSD properties are made available, these
aren't included in the ACPI of these laptops (yet).
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230706223323.30871-2-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>