The simple_strtoull() function is deprecated in some situation, since
it does not check for the range overflow, use kstrtoull() instead.
Signed-off-by: Chen Huang <chenhuang5@huawei.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210526092020.554341-1-chenhuang5@huawei.com
Fix some pr_debug() issues in mpc52xx_pci.c:
- use __func__ to print function names
- use "%pr" to print struct resource entries
- use "%pa" to print a resource_size_t (phys_addr_t)
The latter two fix several build warnings:
../arch/powerpc/platforms/52xx/mpc52xx_pci.c: In function 'mpc52xx_pci_setup':
../include/linux/kern_levels.h:5:18: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'resource_size_t' {aka 'long long unsigned int'} [-Wformat=]
../arch/powerpc/platforms/52xx/mpc52xx_pci.c:277:40: note: format string is defined here
277 | pr_debug("mem_resource[1] = {.start=%x, .end=%x, .flags=%lx}\n",
| ~^
| |
| unsigned int
| %llx
../include/linux/kern_levels.h:5:18: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'resource_size_t' {aka 'long long unsigned int'} [-Wformat=]
../arch/powerpc/platforms/52xx/mpc52xx_pci.c:277:49: note: format string is defined here
277 | pr_debug("mem_resource[1] = {.start=%x, .end=%x, .flags=%lx}\n",
| ~^
| |
| unsigned int
| %llx
../arch/powerpc/platforms/52xx/mpc52xx_pci.c:299:36: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
299 | (unsigned long long)res->flags, (void*)hose->io_base_phys);
| ^
../arch/powerpc/platforms/52xx/mpc52xx_pci.c:295:2: note: in expansion of macro 'pr_debug'
295 | pr_debug(".io_resource={.start=%llx,.end=%llx,.flags=%llx} "
| ^~~~~~~~
The change to print mem_resource[0] is for consistency within this
source file and to use the kernel API -- there were no warnings here.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
[chleroy: Fixed checkpatch complaints]
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210429005323.8195-1-rdunlap@infradead.org
spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210409095145.2294210-1-yebin10@huawei.com
sccdbg symbol is not used, so remove it
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zucheng Zheng <zhengzucheng@huawei.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210409093519.118000-1-zhengzucheng@huawei.com
The sparse tool complains as follow:
arch/powerpc/kernel/btext.c:48:5: warning:
symbol 'boot_text_mapped' was not declared. Should it be static?
This symbol is not used outside of btext.c, so this commit make
it static.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210408011801.557004-3-yukuai3@huawei.com
Fixes gcc '-Wunused-but-set-variable' warning:
arch/powerpc/kernel/btext.c:49:12: error: 'force_printk_to_btext'
defined but not used.
It is never used, and so can be removed.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210408011801.557004-2-yukuai3@huawei.com
commit 475028efc7 ("powerpc/eeh: Remove eeh_dev_phb_init_dynamic()")
left behind this, so can remove it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210324140714.19612-1-yuehaibing@huawei.com
We found these warnings in arch/powerpc/kernel/time.c as follows:
warning: symbol 'decrementer_max' was not declared. Should it be static?
warning: symbol 'rtc_lock' was not declared. Should it be static?
warning: symbol 'dtl_consumer' was not declared. Should it be static?
Declare 'decrementer_max' in powerpc asm/time.h.
Include linux/mc146818rtc.h in powerpc kernel/time.c where 'rtc_lock' is
declared. And remove duplicated declaration of 'rtc_lock' in powerpc
platforms/chrp/time.c because it has included linux/mc146818rtc.h.
Move 'dtl_consumer' definition after "include <asm/dtl.h>" because it is
declared there.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: He Ying <heying24@huawei.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210324090939.143477-1-heying24@huawei.com
Fix the following coccinelle warnings:
./arch/powerpc/lib/sstep.c:1090:20-21: WARNING: sum of probable
bitmasks, consider |
./arch/powerpc/lib/sstep.c:1115:20-21: WARNING: sum of probable
bitmasks, consider |
./arch/powerpc/lib/sstep.c:1134:20-21: WARNING: sum of probable
bitmasks, consider |
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1613811455-2457-1-git-send-email-yang.lee@linux.alibaba.com
Build kernel with `C=2`:
arch/powerpc/perf/isa207-common.c:24:18: warning: symbol
'isa207_pmu_format_attr' was not declared. Should it be static?
arch/powerpc/perf/power9-pmu.c:101:5: warning: symbol 'p9_dd21_bl_ev'
was not declared. Should it be static?
arch/powerpc/perf/power9-pmu.c:115:5: warning: symbol 'p9_dd22_bl_ev'
was not declared. Should it be static?
Those symbols are used only in the files that define them so we declare
them as static to fix the warnings.
Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200923071453.2540-1-wangwensheng4@huawei.com
Remove unnecassary cast in the argument to kfree().
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200708072228.30776-1-vulab@iscas.ac.cn
kmemdup is introduced to duplicate a region of memory in a neat way.
Rather than kmalloc/kzalloc + memcpy, which the programmer needs to
write the size twice (sometimes lead to mistakes), kmemdup improves
readability, leads to smaller code and also reduce the chances of mistakes.
Suggestion to use kmemdup rather than using kmalloc/kzalloc + memcpy.
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
[chleroy: Fixed parenthesis alignment]
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190703162821.32322-1-huangfq.daxian@gmail.com
In smp_85xx_start_cpu() we are passed an address but we're unsure if
it's a real or virtual address, so there's a check to determine that.
The check has an off-by-one in that it tests if the address is greater
than high_memory, but high_memory is the first address of high memory,
so the check should be greater-or-equal.
It seems this has never been a problem in practice, but it also triggers
the DEBUG_VIRTUAL checks in __pa() which we would like to avoid. We can
fix both issues by converting high_memory - 1 to a physical address and
testing against that.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220406145802.538416-3-mpe@ellerman.id.au
Adds a simple test of some basic matrix multiply assist (MMA)
instructions.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200622021832.15870-1-alistair@popple.id.au
Currently the boot wrapper lacks a -mcpu option, so it will be built for
the toolchain's default cpu. This is a problem if the toolchain defaults
to a cpu with newer instructions.
We could wire in TARGET_CPU but instead use the oldest supported option
so the wrapper runs anywhere.
The GCC documentation stays that -mcpu=powerpc64le will give us a
generic 64 bit powerpc machine:
-mcpu=powerpc, -mcpu=powerpc64, and -mcpu=powerpc64le specify pure
32-bit PowerPC (either endian), 64-bit big endian PowerPC and 64-bit
little endian PowerPC architecture machine types, with an appropriate,
generic processor model assumed for scheduling purposes.
So do that for each of the three machines.
This bug was found when building the kernel with a toolchain that
defaulted to powre10, resulting in a pcrel enabled wrapper which fails
to link:
arch/powerpc/boot/wrapper.a(crt0.o): in function `p_base':
(.text+0x150): call to `platform_init' lacks nop, can't restore toc; (toc save/adjust stub)
(.text+0x154): call to `start' lacks nop, can't restore toc; (toc save/adjust stub)
powerpc64le-buildroot-linux-gnu-ld: final link failed: bad value
Even with tha bug worked around the resulting kernel would crash on a
power9 box:
$ qemu-system-ppc64 -nographic -nodefaults -M powernv9 -kernel arch/powerpc/boot/zImage.epapr -serial mon:stdio
[ 7.069331356,5] INIT: Starting kernel at 0x20010020, fdt at 0x3068c628 25694 bytes
[ 7.130374661,3] ***********************************************
[ 7.131072886,3] Fatal Exception 0xe40 at 00000000200101e4 MSR 9000000000000001
[ 7.131290613,3] CFAR : 000000002001027c MSR : 9000000000000001
[ 7.131433759,3] SRR0 : 0000000020010050 SRR1 : 9000000000000001
[ 7.131577775,3] HSRR0: 00000000200101e4 HSRR1: 9000000000000001
[ 7.131733687,3] DSISR: 00000000 DAR : 0000000000000000
[ 7.131905162,3] LR : 0000000020010280 CTR : 0000000000000000
[ 7.132068356,3] CR : 44002004 XER : 00000000
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
BugLink: https://github.com/linuxppc/issues/issues/400
Link: https://lore.kernel.org/r/20220330112437.540214-1-joel@jms.id.au
On crash, boot memory area is copied to a destination address by f/w.
This region is setup as separate PT_LOAD segment with appropriate
offset to handle the different physical address and offset in vmcore.
If this destination address is not page aligned, reading the vmcore
with mmap is likely to fail forcing tools like makedumpfile to fall
back to regular read. Avoid mmap read failure by ensuring that the
destination address is always page aligned.
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220406093839.206608-3-hbathini@linux.ibm.com
Boot memory area is setup as separate PT_LOAD segment in the vmcore
as it is moved by f/w, on crash, to a destination address provided by
the kernel. Having separate PT_LOAD segment helps in handling the
different physical address and offset for boot memory area in the
vmcore.
Commit ced1bf52f4 ("powerpc/fadump: merge adjacent memory ranges to
reduce PT_LOAD segements") inadvertly broke this pre-condition for
cases where some of the first kernel memory is available adjacent to
boot memory area. This scenario is rare but possible when memory for
fadump could not be reserved adjacent to boot memory area owing to
memory hole or such. Reading memory from a vmcore exported in such
scenario provides incorrect data. Fix it by ensuring no other region
is folded into boot memory area.
Fixes: ced1bf52f4 ("powerpc/fadump: merge adjacent memory ranges to reduce PT_LOAD segements")
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220406093839.206608-2-hbathini@linux.ibm.com
An LPAR can be terminated by the POWER Hypervisor (PHYP) for various
reasons. If FADump was configured when PHYP terminates the LPAR,
platform-assisted dump is initiated to save the kernel dump. But CPU
register data would not be processed/saved in the vmcore in such case
because CPU mask is set in crash_fadump() at the time of kernel crash
and it remains unset in this case with LPAR being terminated by PHYP
abruptly.
To get around the problem, initialize cpu_mask to cpu_possible_mask
so as to ensure all possible CPUs' register data is processed for the
vmcore generated on PHYP terminated LPAR. Also, rename the crash info
member variable from online_mask to cpu_mask as it doesn't necessarily
have to be online CPU mask always.
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220404182137.59231-1-hbathini@linux.ibm.com
Dump capture would fail if capture kernel is not of the endianess as the
production kernel, because the in-memory data structure (struct
opal_fadump_mem_struct) shared across production kernel and capture
kernel assumes the same endianess for both the kernels, which doesn't
have to be true always. Fix it by having a well-defined endianess for
struct opal_fadump_mem_struct.
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/161902744901.86147.14719228311655123526.stgit@hbathini
The function __perf_reg_mask has an unsigned return type, but returns a
negative constant to indicate an error condition. So we change unsigned
to int.
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1650788802-14402-1-git-send-email-baihaowen@meizu.com
The last user of find_node_by_linuxphandle() was removed in v4.18-rc1
by commit 30f4bbe047 ("powerpc/boot: Remove support for Marvell MPSC serial controller")
four years ago. This function is no longer needed.
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220424184014.968274-1-frowand.list@gmail.com
info_release() will be called in device_unregister() when info->dev's
reference count is 0. So there is no need to call ocxl_afu_put() and
kfree() again.
Fix this by adding free_minor() and return to err_unregister error path.
Fixes: 75ca758adb ("ocxl: Create a clear delineation between ocxl backend & frontend")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220418085758.38145-1-hbh25y@gmail.com
Let GPIO library to assign of_node from the parent device.
This allows to move GPIO library and drivers to use fwnode
APIs instead of being stuck with OF-only interfaces.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Scott Wood <oss@buserror.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220323174342.56187-1-andriy.shevchenko@linux.intel.com
This is a single serial driver fix for a build issue that showed up due
to changes that came in through the tty tree in 5.18-rc1 that were
missed previously. It resolves a build error with the mpc52xx_uart
driver.
It has been in linux-next this week with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull serial driver fix from Greg KH:
"This is a single serial driver fix for a build issue that showed up
due to changes that came in through the tty tree in 5.18-rc1 that were
missed previously. It resolves a build error with the mpc52xx_uart
driver.
It has been in linux-next this week with no reported problems"
* tag 'tty-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: mpc52xx_uart: make rx/tx hooks return unsigned, part II.
Here is a single staging driver fix for 5.18-rc2 that resolves an endian
issue for the r8188eu driver. It has been in linux-next all this week
with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fix from Greg KH:
"Here is a single staging driver fix for 5.18-rc2 that resolves an
endian issue for the r8188eu driver. It has been in linux-next all
this week with no reported problems"
* tag 'staging-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: r8188eu: Fix PPPoE tag insertion on little endian systems
Here are 2 small driver core changes for 5.18-rc2.
They are the final bits in the removal of the default_attrs field in
struct kobj_type. I had to wait until after 5.18-rc1 for all of the
changes to do this came in through different development trees, and then
one new user snuck in. So this series has 2 changes:
- removal of the default_attrs field in the powerpc/pseries/vas
code. Change has been acked by the PPC maintainers to come
through this tree
- removal of default_attrs from struct kobj_type now that all
in-kernel users are removed. This cleans up the kobject code
a little bit and removes some duplicated functionality that
confused people (now there is only one way to do default
groups.)
All of these have been in linux-next for all of this week with no
reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here are two small driver core changes for 5.18-rc2.
They are the final bits in the removal of the default_attrs field in
struct kobj_type. I had to wait until after 5.18-rc1 for all of the
changes to do this came in through different development trees, and
then one new user snuck in. So this series has two changes:
- removal of the default_attrs field in the powerpc/pseries/vas code.
The change has been acked by the PPC maintainers to come through
this tree
- removal of default_attrs from struct kobj_type now that all
in-kernel users are removed.
This cleans up the kobject code a little bit and removes some
duplicated functionality that confused people (now there is only
one way to do default groups)
Both of these have been in linux-next for all of this week with no
reported problems"
* tag 'driver-core-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
kobject: kobj_type: remove default_attrs
powerpc/pseries/vas: use default_groups in kobj_type
Here is a single driver fix for 5.18-rc2. It resolves the build warning
issue on 32bit systems in the habannalabs driver that came in during the
5.18-rc1 merge cycle.
It has been in linux-next for all this week with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fix from Greg KH:
"A single driver fix. It resolves the build warning issue on 32bit
systems in the habannalabs driver that came in during the 5.18-rc1
merge cycle.
It has been in linux-next for all this week with no reported problems"
* tag 'char-misc-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
habanalabs: Fix test build failures
- Fix KVM "lost kick" race, where an attempt to pull a vcpu out of the guest could be
lost (or delayed until the next guest exit).
- Disable SCV (system call vectored) when PR KVM guests could be run.
- Fix KVM PR guests using SCV, by disallowing AIL != 0 for KVM PR guests.
- Add a new KVM CAP to indicate if AIL == 3 is supported.
- Fix a regression when hotplugging a CPU to a memoryless/cpuless node.
- Make virt_addr_valid() stricter for 64-bit Book3E & 32-bit, which fixes crashes seen
due to hardened usercopy.
- Revert a change to max_mapnr which broke HIGHMEM.
Thanks to: Christophe Leroy, Fabiano Rosas, Kefeng Wang, Nicholas Piggin, Srikar Dronamraju.
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Merge tag 'powerpc-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix KVM "lost kick" race, where an attempt to pull a vcpu out of the
guest could be lost (or delayed until the next guest exit).
- Disable SCV (system call vectored) when PR KVM guests could be run.
- Fix KVM PR guests using SCV, by disallowing AIL != 0 for KVM PR
guests.
- Add a new KVM CAP to indicate if AIL == 3 is supported.
- Fix a regression when hotplugging a CPU to a memoryless/cpuless node.
- Make virt_addr_valid() stricter for 64-bit Book3E & 32-bit, which
fixes crashes seen due to hardened usercopy.
- Revert a change to max_mapnr which broke HIGHMEM.
Thanks to Christophe Leroy, Fabiano Rosas, Kefeng Wang, Nicholas Piggin,
and Srikar Dronamraju.
* tag 'powerpc-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
Revert "powerpc: Set max_mapnr correctly"
powerpc: Fix virt_addr_valid() for 64-bit Book3E & 32-bit
KVM: PPC: Move kvmhv_on_pseries() into kvm_ppc.h
powerpc/numa: Handle partially initialized numa nodes
powerpc/64: Fix build failure with allyesconfig in book3s_64_entry.S
KVM: PPC: Use KVM_CAP_PPC_AIL_MODE_3
KVM: PPC: Book3S PR: Disallow AIL != 0
KVM: PPC: Book3S PR: Disable SCV when AIL could be disabled
KVM: PPC: Book3S HV P9: Fix "lost kick" race
- A fix for a long standing bug in the ARM GICv3 redistributor polling
which uses the wrong bit number to test.
- Prevent translation of bogus ACPI table entries which map device
interrupts into the IPI space on ARM GICs.
- Don't write into the pending register of ARM GICV4 before the scan
in hardware has completed.
- A set of build and correctness fixes for the Qualcomm MPM driver
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Merge tag 'irq-urgent-2022-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of interrupt chip driver fixes:
- A fix for a long standing bug in the ARM GICv3 redistributor
polling which uses the wrong bit number to test.
- Prevent translation of bogus ACPI table entries which map device
interrupts into the IPI space on ARM GICs.
- Don't write into the pending register of ARM GICV4 before the scan
in hardware has completed.
- A set of build and correctness fixes for the Qualcomm MPM driver"
* tag 'irq-urgent-2022-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic, gic-v3: Prevent GSI to SGI translations
irqchip/gic-v3: Fix GICR_CTLR.RWP polling
irqchip/gic-v4: Wait for GICR_VPENDBASER.Dirty to clear before descheduling
irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()
irq/qcom-mpm: Fix build error without MAILBOX
- Use local labels in the exception table macros to avoid symbol
conflicts with clang LTO builds
- A couple of fixes to objtool checking of the relatively newly added
SLS and IBT code
- Rename a local var in the WARN* macro machinery to prevent shadowing
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Merge tag 'x86_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Fix the MSI message data struct definition
- Use local labels in the exception table macros to avoid symbol
conflicts with clang LTO builds
- A couple of fixes to objtool checking of the relatively newly added
SLS and IBT code
- Rename a local var in the WARN* macro machinery to prevent shadowing
* tag 'x86_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/msi: Fix msi message data shadow struct
x86/extable: Prefer local labels in .set directives
x86,bpf: Avoid IBT objtool warning
objtool: Fix SLS validation for kcov tail-call replacement
objtool: Fix IBT tail-call detection
x86/bug: Prevent shadowing in __WARN_FLAGS
x86/mm/tlb: Revert retpoline avoidance approach
- A couple of fixes to event encoding on Sapphire Rapids
- Pass event caps of inherited events so that perf doesn't fail wrongly at fork()
- Add support for a new Raptor Lake CPU
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Merge tag 'perf_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- A couple of fixes to cgroup-related handling of perf events
- A couple of fixes to event encoding on Sapphire Rapids
- Pass event caps of inherited events so that perf doesn't fail wrongly
at fork()
- Add support for a new Raptor Lake CPU
* tag 'perf_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Always set cpuctx cgrp when enable cgroup event
perf/core: Fix perf_cgroup_switch()
perf/core: Use perf_cgroup_info->active to check if cgroup is active
perf/core: Don't pass task around when ctx sched in
perf/x86/intel: Update the FRONTEND MSR mask on Sapphire Rapids
perf/x86/intel: Don't extend the pseudo-encoding to GP counters
perf/core: Inherit event_caps
perf/x86/uncore: Add Raptor Lake uncore support
perf/x86/msr: Add Raptor Lake CPU support
perf/x86/cstate: Add Raptor Lake support
perf/x86: Add Intel Raptor Lake support
the local_lock_* macros back to inline functions
- A couple of fixes to static call insn patching
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Merge tag 'locking_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Borislav Petkov:
- Allow the compiler to optimize away unused percpu accesses and change
the local_lock_* macros back to inline functions
- A couple of fixes to static call insn patching
* tag 'locking_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "mm/page_alloc: mark pagesets as __maybe_unused"
Revert "locking/local_lock: Make the empty local_lock_*() function a macro."
x86/percpu: Remove volatile from arch_raw_cpu_ptr().
static_call: Remove __DEFINE_STATIC_CALL macro
static_call: Properly initialise DEFINE_STATIC_CALL_RET0()
static_call: Don't make __static_call_return0 static
x86,static_call: Fix __static_call_return0 for i386
- Two fixes for the new forceidle balancer
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Merge tag 'sched_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Use the correct static key checking primitive on the IRQ exit path
- Two fixes for the new forceidle balancer
* tag 'sched_urgent_for_v5.18_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
entry: Fix compile error in dynamic_irqentry_exit_cond_resched()
sched: Teach the forced-newidle balancer about CPU affinity limitation.
sched/core: Fix forceidle balancing
- Fix the clang command line option probing and remove some options to filter
out, fixing the build with the latest clang versions.
- Fix 'perf bench' futex and epoll benchmarks to deal with machines with more
than 1K CPUs.
- Fix 'perf test tsc' error message when not supported.
- Remap perf ring buffer if there is no space for event, fixing perf usage
in 32-bit ChromeOS.
- Drop objdump stderr to avoid getting stuck waiting for stdout output in
'perf annotate'.
- Fix up garbled output by now showing unwind error messages when augmenting
frame in best effort mode.
- Fix perf's libperf_print callback, use the va_args eprintf() variant.
- Sync vhost and arm64 cputype headers with the kernel sources.
- Fix 'perf report --mem-mode' with ARM SPE.
- Add missing external commands ('perf iiostat', etc) to 'perf --list-cmds'.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.18-2022-04-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix the clang command line option probing and remove some options to
filter out, fixing the build with the latest clang versions
- Fix 'perf bench' futex and epoll benchmarks to deal with machines
with more than 1K CPUs
- Fix 'perf test tsc' error message when not supported
- Remap perf ring buffer if there is no space for event, fixing perf
usage in 32-bit ChromeOS
- Drop objdump stderr to avoid getting stuck waiting for stdout output
in 'perf annotate'
- Fix up garbled output by now showing unwind error messages when
augmenting frame in best effort mode
- Fix perf's libperf_print callback, use the va_args eprintf() variant
- Sync vhost and arm64 cputype headers with the kernel sources
- Fix 'perf report --mem-mode' with ARM SPE
- Add missing external commands ('iiostat', etc) to 'perf --list-cmds'
* tag 'perf-tools-fixes-for-v5.18-2022-04-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf annotate: Drop objdump stderr to avoid getting stuck waiting for stdout output
perf tools: Add external commands to list-cmds
perf docs: Add perf-iostat link to manpages
perf session: Remap buf if there is no space for event
perf bench: Fix epoll bench to correct usage of affinity for machines with #CPUs > 1K
perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K
perf tools: Fix perf's libperf_print callback
perf: arm-spe: Fix perf report --mem-mode
perf unwind: Don't show unwind error messages when augmenting frame pointer stack
tools headers arm64: Sync arm64's cputype.h with the kernel sources
perf test tsc: Fix error message when not supported
perf build: Don't use -ffat-lto-objects in the python feature test when building with clang-13
perf python: Fix probing for some clang command line options
tools build: Filter out options and warnings not supported by clang
tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
tools include UAPI: Sync linux/vhost.h with the kernel sources
- Fix a compile error in the nvdimm unit tests
- Fix a shadowed variable warning in the CXL PCI driver
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Merge tag 'cxl+nvdimm-for-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull cxl and nvdimm fixes from Dan Williams:
- Fix a compile error in the nvdimm unit tests
- Fix a shadowed variable warning in the CXL PCI driver
* tag 'cxl+nvdimm-for-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
cxl/pci: Drop shadowed variable
tools/testing/nvdimm: Fix security_init() symbol collision
- fix a race condition with consumers accessing the fields of GPIO IRQ chips
before they're fully initialized
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Merge tag 'gpio-fixes-for-v5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
- fix a race condition with consumers accessing the fields of GPIO IRQ
chips before they're fully initialized
* tag 'gpio-fixes-for-v5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: Restrict usage of GPIO chip irq members before initialization
- Fix GICv3 polling for RWP in redistributors
- Reject ACPI attempts to use SGIs on GIC/GICv3
- Fix unpredictible behaviour when making a VPE non-resident
with GICv4
- A couple of fixes for the newly merged qcom-mpm driver
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Merge tag 'irqchip-fixes-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip fixes from Marc Zyngier:
- Fix GICv3 polling for RWP in redistributors
- Reject ACPI attempts to use SGIs on GIC/GICv3
- Fix unpredictible behaviour when making a VPE non-resident
with GICv4
- A couple of fixes for the newly merged qcom-mpm driver
Link: https://lore.kernel.org/lkml/20220409094229.267649-1-maz@kernel.org
If objdump writes to stderr it can block waiting for it to be read. As
perf doesn't read stderr then progress stops with perf waiting for
stdout output.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Truong <alexandre.truong@arm.com>
Cc: Dave Marchevsky <davemarchevsky@fb.com>
Cc: Denis Nikitin <denik@chromium.org>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Lexi Shao <shaolexi@huawei.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Cc: William Cohen <wcohen@redhat.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20220407230503.1265036-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The `perf --list-cmds` output prints only internal commands, although
there is no reason for that from users' perspective.
Adding the external commands to commands array with NULL function
pointer allows printing all perf commands while not changing the logic
of command handler selection.
Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220404221541.30312-2-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If a perf event doesn't fit into remaining buffer space return NULL to
remap buf and fetch the event again.
Keep the logic to error out on inadequate input from fuzzing.
This fixes perf failing on ChromeOS (with 32b userspace):
$ perf report -v -i perf.data
...
prefetch_event: head=0x1fffff8 event->header_size=0x30, mmap_size=0x2000000: fuzzed or compressed perf.data?
Error:
failed to process sample
Fixes: 57fc032ad6 ("perf session: Avoid infinite loop when seeing invalid header.size")
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Denis Nikitin <denik@chromium.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220330031130.2152327-1-denik@chromium.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
38 Patches, two adding support for new devices (ufs, mvsas), a major
set of six fixes in lpfc plus a huge chunk removal in pmcraid to get
rid of a driver specific ioctl and a major rework of aha152x to get
rid of the scsi_pointer. The rest are minor fixes and obvious changes
including several spelling updates.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
- add support for new devices (ufs, mvsas)
- a major set of fixes in lpfc
- get rid of a driver specific ioctl in pcmraid
- a major rework of aha152x to get rid of the scsi_pointer.
- minor fixes and obvious changes including several spelling updates.
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (36 commits)
scsi: megaraid_sas: Target with invalid LUN ID is deleted during scan
scsi: ufs: ufshpb: Fix a NULL check on list iterator
scsi: sd: Clean up gendisk if device_add_disk() failed
scsi: message: fusion: Remove redundant variable dmp
scsi: mvsas: Add PCI ID of RocketRaid 2640
scsi: sd: sd_read_cpr() requires VPD pages
scsi: mpt3sas: Fail reset operation if config request timed out
scsi: sym53c500_cs: Stop using struct scsi_pointer
scsi: ufs: ufs-pci: Add support for Intel MTL
scsi: mpt3sas: Fix mpt3sas_check_same_4gb_region() kdoc comment
scsi: scsi_debug: Fix sdebug_blk_mq_poll() in_use_bm bitmap use
scsi: bnx2i: Fix spelling mistake "mis-match" -> "mismatch"
scsi: bnx2fc: Fix spelling mistake "mis-match" -> "mismatch"
scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()
scsi: aic7xxx: Use standard PCI subsystem, subdevice defines
scsi: ufs: qcom: Drop custom Android boot parameters
scsi: core: sysfs: Remove comments that conflict with the actual logic
scsi: hisi_sas: Remove stray fallthrough annotation
scsi: virtio-scsi: Eliminate anonymous module_init & module_exit
scsi: isci: Fix spelling mistake "doesnt" -> "doesn't"
...
The 'perf bench epoll' testcase fails on systems with more than 1K CPUs.
Testcase: perf bench epoll all
Result snippet:
<<>>
Run summary [PID 106497]: 1399 threads monitoring on 64 file-descriptors for 8 secs.
perf: pthread_create: No such file or directory
<<>>
In epoll benchmarks (ctl, wait) pthread_create is invoked in do_threads
from respective bench_epoll_* function. Though the logs shows direct
failure from pthread_create, the actual failure is from
"sched_setaffinity" returning EINVAL (invalid argument).
This happens because the default mask size in glibc is 1024. To overcome
this 1024 CPUs mask size limitation of cpu_set_t, change the mask size
using the CPU_*_S macros.
Patch addresses this by fixing all the epoll benchmarks to use CPU_ALLOC
to allocate cpumask, CPU_ALLOC_SIZE for size, and CPU_SET_S to set the
mask.
Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220406175113.87881-3-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The 'perf bench futex' testcase fails on systems with more than 1K CPUs.
Testcase: perf bench futex all
Failure snippet:
<<>>Running futex/hash benchmark...
perf: pthread_create: No such file or directory
<<>>
All the futex benchmarks (ie hash, lock-api, requeue, wake,
wake-parallel), pthread_create is invoked in respective bench_futex_*
function. Though the logs shows direct failure from pthread_create,
strace logs showed that actual failure is from "sched_setaffinity"
returning EINVAL (invalid argument).
This happens because the default mask size in glibc is 1024. To overcome
this 1024 CPUs mask size limitation of cpu_set_t, change the mask size
using the CPU_*_S macros.
Patch addresses this by fixing all the futex benchmarks to use CPU_ALLOC
to allocate cpumask, CPU_ALLOC_SIZE for size, and CPU_SET_S to set the
mask.
Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20220406175113.87881-2-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
