Heiko Carstens [Mon, 5 Jul 2021 15:51:19 +0000 (17:51 +0200)]
s390: remove old CALL_ON_STACK() macro
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 18:56:40 +0000 (20:56 +0200)]
s390/softirq: use call_on_stack() macro
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 18:38:42 +0000 (20:38 +0200)]
s390/lib: use call_on_stack() macro
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 18:38:36 +0000 (20:38 +0200)]
s390/smp: use call_on_stack() macro
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 18:38:26 +0000 (20:38 +0200)]
s390/kexec: use call_on_stack() macro
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 18:38:14 +0000 (20:38 +0200)]
s390/irq: use call_on_stack() macro
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 18:16:18 +0000 (20:16 +0200)]
s390/mm: use call_on_stack() macro
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 18:16:10 +0000 (20:16 +0200)]
s390: introduce proper type handling call_on_stack() macro
The existing CALL_ON_STACK() macro allows for subtle bugs:
- There is no type checking of the function that is being called. That
is: missing or too many arguments do not cause any compile error or
warning. The same is true if the return type of the called function
changes. This can lead to quite random bugs.
- Sign and zero extension of arguments is missing. Given that the s390
C ABI requires that the caller of a function performs proper sign
and zero extension this can also lead to subtle bugs.
- If arguments to the CALL_ON_STACK() macros contain functions calls
register corruption can happen due to register asm constructs being
used.
Therefore introduce a new call_on_stack() macro which is supposed to
fix all these problems.
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 18:57:49 +0000 (20:57 +0200)]
s390/irq: simplify on_async_stack()
Make on_async_stack() a bit more readable, even though as usual it
depends if one considers "!!!" readable or not.
At least the new construct to check if the async stack is in use or
not is a bit shorter and generates slightly better code.
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 20:27:06 +0000 (22:27 +0200)]
s390/irq: inline do_softirq_own_stack()
Move do_softirq_own_stack() to proper header file so it can be
inlined; saving a few cycles.
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 20:26:26 +0000 (22:26 +0200)]
s390/irq: simplify do_softirq_own_stack()
do_softirq_own_stack() is always called from task context and
therefore it is not necessary to check if the async stack is
currently used.
Remove the check and directly switch to async stack.
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Harald Freudenberger [Mon, 5 Jul 2021 16:22:56 +0000 (18:22 +0200)]
s390/ap: get rid of register asm in ap_dqap()
This is the second part of the cleanup for the header file ap.h
to remove the register asm statements. This patch deals with
the inline ap_dqap() function where within the assembler code
an odd register of an register pair is to be addressed.
[hca@linux.ibm.com: this intentionally breaks compilation with any
clang compilers prior to llvm-project commit
458eac257377 ("[SystemZ]
Support the 'N' code for the odd register in inline-asm.").
This is hopefully the last clang kernel compile breakage caused by
incompatibilities between gcc and clang.]
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Sven Schnelle [Wed, 30 Jun 2021 12:02:41 +0000 (14:02 +0200)]
s390: rename PIF_SYSCALL_RESTART to PIF_EXECVE_PGSTE_RESTART
PIF_SYSCALL_RESTART is now only used to restart execve when loading
PGSTE binaries. Rename the flag to reflect that, and avoid people
thinking that this bit has anything to do with generic syscall
restarting.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Sven Schnelle [Wed, 30 Jun 2021 11:50:55 +0000 (13:50 +0200)]
s390: move restart of execve() syscall
On s390, execve might have to be restarted for PGSTE binaries
like kvm. In the past this was done via the PIF_SYSCALL_RESTART
bit. However, with the recent changes, syscalls are now restarted
differently. Now that execve() is the only call that might get
restarted via PIF_SYSCALL_RESTART, move the loop to do_syscall().
This also has the advantage that the restart is no longer visible
to userspace.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Sven Schnelle [Fri, 25 Jun 2021 13:06:06 +0000 (15:06 +0200)]
s390/signal: remove sigreturn on stack
{rt_}sigreturn is now called from the vdso, so we no longer
need the svc on the stack, and therefore no hack to support that
mechanism on machines with non-executable stack.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Sven Schnelle [Fri, 25 Jun 2021 13:02:08 +0000 (15:02 +0200)]
s390/signal: switch to using vdso for sigreturn and syscall restart
with generic entry, there's a bug when it comes to restarting of signals.
The failing sequence is:
a) a signal is coming in, and no handler is registered, so the lower
part of arch_do_signal_or_restart() in arch/s390/kernel/signal.c
sets PIF_SYSCALL_RESTART.
b) a second signal gets pending while the kernel is still in the exit
loop, and for that one, a handler exists.
c) The first part of arch_do_signal_or_restart() is called. That part
calls handle_signal(), which sets up stack + registers for handling
the signal.
d) __do_syscall() in arch/s390/kernel/syscall.c checks for
PIF_SYSCALL_RESTART right before leaving to userspace. If it is set,
it restart's the syscall. However, the registers are already setup
for handling a signal from c). The syscall is now restarted with the
wrong arguments.
Change the code to:
- use vdso for syscall_restart() instead of PIF_SYSCALL_RESTART because
we cannot rewind and go back to userspace on s390 because the system call
number might be encoded in the svc instruction.
- for all other syscalls we rewind the PSW and return to userspace.
Cc: <stable@kernel.org> # v5.12+ d57778feb987: s390/vdso: always enable vdso
Cc: <stable@kernel.org> # v5.12+ 686341f2548b: s390/vdso64: add sigreturn,rt_sigreturn and restart_syscall
Cc: <stable@kernel.org> # v5.12+ 43e1f76b0b69: s390/vdso: rename VDSO64_LBASE to VDSO_LBASE
Cc: <stable@kernel.org> # v5.12+ 779df2248739: s390/vdso: add minimal compat vdso
Cc: <stable@kernel.org> # v5.12+
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Sven Schnelle [Fri, 25 Jun 2021 12:50:08 +0000 (14:50 +0200)]
s390/vdso: add minimal compat vdso
Add a small vdso for 31 bit compat application that provides
trampolines for calls to sigreturn,rt_sigreturn,syscall_restart.
This is requird for moving these syscalls away from the signal
frame to the vdso. Note that this patch effectively disables
CONFIG_COMPAT when using clang to compile the kernel. clang
doesn't support 31 bit mode.
We want to redirect sigreturn and restart_syscall to the vdso. However,
the kernel cannot parse the ELF vdso file, so we need to generate header
files which contain the offsets of the syscall instructions in the vdso
page.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Sven Schnelle [Fri, 25 Jun 2021 13:10:35 +0000 (15:10 +0200)]
s390/vdso: rename VDSO64_LBASE to VDSO_LBASE
Will be used by both vdso32 and vdso64, so change the name.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Sven Schnelle [Fri, 25 Jun 2021 12:48:28 +0000 (14:48 +0200)]
s390/vdso64: add sigreturn,rt_sigreturn and restart_syscall
Add minimalistic trampolines to vdso64 so we can return from signal
without using the stack which requires pgm check handler hacks when
NX is enabled.
restart_syscall will be called from vdso to work around the architectural
limitation that the syscall number might be encoded in the svc instruction,
and therefore can not be changed.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Sven Schnelle [Wed, 23 Jun 2021 12:10:00 +0000 (14:10 +0200)]
s390/vdso: always enable vdso
With the upcoming move of the svc sigreturn instruction from
the signal frame to vdso we need to have vdso always enabled.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 5 Jul 2021 10:06:55 +0000 (12:06 +0200)]
s390/ap: get rid of register asm
Using register asm statements has been proven to be very error prone,
especially when using code instrumentation where gcc may add function
calls, which clobbers register contents in an unexpected way.
Therefore get rid of register asm statements in ap code. There are also
potential bugs, depending on inline decisions of the compiler.
E.g. for:
static inline struct ap_queue_status ap_tapq(ap_qid_t qid, unsigned long *info)
{
register unsigned long reg0 asm ("0") = qid;
register struct ap_queue_status reg1 asm ("1");
register unsigned long reg2 asm ("2");
asm volatile(".long 0xb2af0000" /* PQAP(TAPQ) */
: "=d" (reg1), "=d" (reg2)
: "d" (reg0)
: "cc");
if (info)
*info = reg2;
return reg1;
}
In case of KCOV the "if (info)" line could cause a generated function
call, which could clobber the contents of both reg2, and reg1.
Similar can happen in case of KASAN for the "*info = reg2" line.
Even though compilers will likely inline the function and optimize
things away, this is not guaranteed.
To get rid of this bug class, simply get rid of register asm constructs.
Note: The inline function ap_dqap() will be handled in a
separate patch because this one requires an addressing of the
odd register of a register pair (which is done with %N[xxx] in
the assembler code) and that's currently not supported by clang.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Sven Schnelle [Tue, 6 Jul 2021 18:24:58 +0000 (20:24 +0200)]
s390/irq: remove HAVE_IRQ_EXIT_ON_IRQ_STACK
This is no longer true since we switched to generic entry. The code
switches to the IRQ stack before calling do_IRQ, but switches back
to the kernel stack before calling irq_exit().
Fixes:
56e62a737028 ("s390: convert to generic entry")
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Ilya Leoshkevich [Fri, 2 Jul 2021 13:54:55 +0000 (15:54 +0200)]
s390/traps: do not test MONITOR CALL without CONFIG_BUG
tinyconfig fails to boot, because without CONFIG_BUG report_bug()
always returns BUG_TRAP_TYPE_BUG, which causes mc 0,0 in
test_monitor_call() to panic. Fix by skipping the test without
CONFIG_BUG.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Harald Freudenberger [Wed, 30 Jun 2021 14:10:56 +0000 (16:10 +0200)]
s390/ap: Rework ap_dqap to deal with messages greater than recv buffer
Rework of the ap_dqap() inline function with the dqap inline assembler
invocation and the caller code in ap_queue.c to be able to handle
replies which exceed the receive buffer size.
ap_dqap() now provides two additional parameters to handle together
with the caller the case where a reply in the firmware queue entry
exceeds the given message buffer size. It depends on the caller how to
exactly handle this. The behavior implemented now by ap_sm_recv() in
ap_queue.c is to simple purge this entry from the firmware queue and
let the caller 'receive' a -EMSGSIZE for the request without
delivering any reply data - not even a truncated reply message.
However, the reworked ap_dqap() could now get invoked in a way that
the message is received in multiple parts and the caller assembles the
parts into one reply message.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Suggested-by: Juergen Christ <jchrist@linux.ibm.com>
Reviewed-by: Juergen Christ <jchrist@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Harald Freudenberger [Fri, 25 Jun 2021 10:29:46 +0000 (12:29 +0200)]
s390/AP: support new dynamic AP bus size limit
This patch provides support for new dynamic AP bus message limit
with the existing zcrypt device driver and AP bus core code.
There is support for a new field 'ml' from TAPQ query. The field
gives if != 0 the AP bus limit for this card in 4k chunk units.
The actual message size limit per card is shown as a new read-only
sysfs attribute. The sysfs attribute
/sys/devices/ap/cardxx/max_msg_size
shows the upper limit in bytes used by the AP bus and zcrypt device
driver for requests and replies send to and received from this card.
Currently up to CEX7 support only max 12kB msg size and thus the field
shows 12288 meaning the upper limit of a valid msg for this card is
12kB. Please note that the usable payload is somewhat lower and
depends on the msg type and thus the header struct which is to be
prepended by the zcrypt dd.
The dispatcher responsible for choosing the right card and queue is
aware of the individual card AP bus message limit. So a request is
only assigned to a queue of a card which is able to handle the size of
the request (e.g. a 14kB request will never go to a max 12kB card).
If no such card is found the ioctl will fail with ENODEV.
The reply buffer held by the device driver is determined by the ml
field of the TAPQ for this card. If a response from the card exceeds
this limit however, the response is not truncated but the ioctl for
this request will fail with errno EMSGSIZE to indicate that the device
driver has dropped the response because it would overflow the buffer
limit.
If the request size does not indicate to the dispatcher that an
adapter with extended limit is to be used, a random card will be
chosen when no specific card is addressed (ANY addressing). This may
result in an ioctl failure when the reply size needs an adapter with
extended limit but the randomly chosen one is not capable of handling
the broader reply size. The user space application needs to use
dedicated addressing to forward such a request only to suitable cards
to get requests like this processed properly.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ingo Tuchscherer <ingo.tuchscherer@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Thu, 1 Jul 2021 10:28:48 +0000 (12:28 +0200)]
s390/lib,string: fix strcat() inline asm constraint modifier
"dummy" is not only used as output but also as input. Therefore use
the correct "+" constraint modifier.
Fixes:
8cf23c8e1fec ("s390/lib,string: get rid of register asm")
Reported-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Thomas Richter [Fri, 25 Jun 2021 13:17:01 +0000 (15:17 +0200)]
s390/cpumf: Allow concurrent access for CPU Measurement Counter Facility
Commit
cf6acb8bdb1d ("s390/cpumf: Add support for complete counter set extraction")
allows access to the CPU Measurement Counter Facility via character
device /dev/hwctr. The access was exclusive via this device or
via perf_event_open() system call. Only one path at a time was
permitted. The CPU Measurement Counter Facility device driver blocked
access to other processes.
This patch removes this restriction and allows concurrent access to
the CPU Measurement Counter Facility from multiple processes at the same
time via perf_event_open() SVC and via /dev/hwctr device. The access
via /dev/hwctr device is still exclusive, only one process is allowed to
access this device.
This patch
- moves the /dev/hwctr device access from file perf_cpum_cf_diag.c.
to file perf_cpum_cf.c.
- use only one trace buffer .../s390dbf/cpum_cf.
- remove cfset_csd structure and includes its members it into the
structure cpu_cf_events. This results in one data structure and
simplifies the access.
- rework function familiy ctr_set_enable, ctr_set_disable, ctr_set_start
and ctr_set_stop which operate on a counter set number.
Now they operate on a counter set bit mask.
- move CF_DIAG event functionality to file perf_cpum_cf.c. It now
contains the complete functionality of the CPU Measurement Counter
Facility:
- Performance measurement support for counters using perf stat.
- Support for complete counter set extraction with device /dev/hwctr.
- Support for counter set extraction event CF_DIAG attached to
samples using perf record.
- removes file perf_cpum_cf_diag.c
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Alexander Gordeev [Fri, 18 Jun 2021 06:17:18 +0000 (08:17 +0200)]
s390/mcck: move register validation to C code
This update partially reverts commit
3037a52f9846 ("s390/nmi:
do register validation as early as possible").
Storage error checks and control registers validation are left
in the assembler code, since correct ASCEs and page tables are
required to enable DAT - which is done before the C handler is
entered.
System damage, kernel instruction address and PSW MWP checks
are left in the assembler code as well, since there is no way
to proceed if one of these checks is failed.
The getcpu vdso syscall reads CPU number from the programmable
field of the TOD clock. Disregard the TOD programmable register
validity bit and load the CPU number into the TOD programmable
field unconditionally.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Alexander Egorenkov [Thu, 25 Mar 2021 11:10:56 +0000 (12:10 +0100)]
s390/boot: replace magic string check with a bootdata flag
The magic string "S390EP" at offset 0x10008 indicated to the decompressed
kernel that it was booted by the decompressor. Introduce a new bootdata
flag instead which conveys the same information in an explicit and
a cleaner way. But keep the magic string because it is a kernel ABI.
Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Alexander Gordeev [Fri, 18 Jun 2021 06:17:17 +0000 (08:17 +0200)]
s390/mcck: keep machine check interruption codes sorted
This update puts in order MCCK_CODE_CPU_TIMER_VALID code definition.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Alexander Gordeev [Fri, 18 Jun 2021 06:17:16 +0000 (08:17 +0200)]
s390/mcck: move storage error checks to assembler
The current storage errors tackling is wrong - the DAT is
enabled in assembler code before the actual storage checks
in C half are executed. In case the page tables themselves
are damaged such approach is not going to work.
With this update unrecoverable storage errors are not
passed to C code for handling, but rather the machine
is stopped right away. The only exception to this flow
is when a machine check occurred in KVM guest - in this
case the errors are reinjected by the handler.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Alexander Gordeev [Fri, 18 Jun 2021 06:17:15 +0000 (08:17 +0200)]
s390/mcck: always enter C handler with DAT enabled
The machine check handler must be entered with DAT disabled
in case control registers are corrupted or a storage error
happened and we can not tell if such error corresponds to a
page table.
Both of described conditions end up in stopping all CPUs and
entering the disabled wait in C half of the handler. However,
the storage errors are still checked after the DAT is enabled
and C code is entered. In case a page table is damaged such
flow is not expected to work.
This update paves the way for moving the storage error checks
from C to assembler half. All fatal errors that can only be
handled with DAT disabled are handled in assembler half also.
As result, the C half is only entered if the DAT is secured.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Alexander Gordeev [Tue, 22 Jun 2021 17:06:18 +0000 (19:06 +0200)]
s390/mcck: optimize user mode check in case of !CONFIG_KVM
In case of the !CONFIG_KVM use "jz" instead of "jnz" when
detecting user mode and get rid of unnecessary jump as result.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Christia Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Alexander Gordeev [Fri, 18 Jun 2021 06:17:13 +0000 (08:17 +0200)]
s390/entry.S: factor out SIEEXIT macro
Factor out SIEEXIT macro and use it instead of cleanup_sie
routine. As a side effect %r13 and %r14 are spared.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Christia Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Heiko Carstens [Mon, 28 Jun 2021 21:55:53 +0000 (23:55 +0200)]
s390/lib,uaccess: fix copy_in_user_mvcos() inline asm clobber list
General register 0 is clobbered within the inline assembly and
therefore must be listed in the clobber list.
Fixes:
d1e18efa8fa9 ("s390/lib,uaccess: get rid of register asm")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Janosch Frank [Tue, 12 Jan 2021 10:40:53 +0000 (05:40 -0500)]
s390: mm: Fix secure storage access exception handling
Turns out that the bit 61 in the TEID is not always 1 and if that's
the case the address space ID and the address are
unpredictable. Without an address and its address space ID we can't
export memory and hence we can only send a SIGSEGV to the process or
panic the kernel depending on who caused the exception.
Unfortunately bit 61 is only reliable if we have the "misc" UV feature
bit.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Fixes:
084ea4d611a3d ("s390/mm: add (non)secure page access exceptions handlers")
Cc: stable@vger.kernel.org
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Kefeng Wang [Sat, 26 Jun 2021 07:34:37 +0000 (15:34 +0800)]
s390/kprobes: use is_kernel() helper
Use is_kernel() helper instead of is_kernel_addr().
[hca@linux.ibm.com: add missing unsigned long cast]
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Linus Torvalds [Sun, 4 Jul 2021 19:17:38 +0000 (12:17 -0700)]
Merge tag 's390-5.14-1' of git://git./linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik:
- Rework inline asm to get rid of error prone "register asm"
constructs, which are problematic especially when code
instrumentation is enabled.
In particular introduce and use register pair union to allocate
even/odd register pairs. Unfortunately this breaks compatibility with
older clang compilers and minimum clang version for s390 has been
raised to 13.
https://lore.kernel.org/linux-next/CAK7LNARuSmPCEy-ak0erPrPTgZdGVypBROFhtw+=3spoGoYsyw@mail.gmail.com/
- Fix gcc 11 warnings, which triggered various minor reworks all over
the code.
- Add zstd kernel image compression support.
- Rework boot CPU lowcore handling.
- De-duplicate and move kernel memory layout setup logic earlier.
- Few fixes in preparation for FORTIFY_SOURCE performing compile-time
and run-time field bounds checking for mem functions.
- Remove broken and unused power management support leftovers in s390
drivers.
- Disable stack-protector for decompressor and purgatory to fix
buildroot build.
- Fix vt220 sclp console name to match the char device name.
- Enable HAVE_IOREMAP_PROT and add zpci_set_irq()/zpci_clear_irq() in
zPCI code.
- Remove some implausible WARN_ON_ONCEs and remove arch specific
counter transaction call backs in favour of default transaction
handling in perf code.
- Extend/add new uevents for online/config/mode state changes of AP
card / queue device in zcrypt.
- Minor entry and ccwgroup code improvements.
- Other small various fixes and improvements all over the code.
* tag 's390-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (91 commits)
s390/dasd: use register pair instead of register asm
s390/qdio: get rid of register asm
s390/ioasm: use symbolic names for asm operands
s390/ioasm: get rid of register asm
s390/cmf: get rid of register asm
s390/lib,string: get rid of register asm
s390/lib,uaccess: get rid of register asm
s390/string: get rid of register asm
s390/cmpxchg: use register pair instead of register asm
s390/mm,pages-states: get rid of register asm
s390/lib,xor: get rid of register asm
s390/timex: get rid of register asm
s390/hypfs: use register pair instead of register asm
s390/zcrypt: Switch to flexible array member
s390/speculation: Use statically initialized const for instructions
virtio/s390: get rid of open-coded kvm hypercall
s390/pci: add zpci_set_irq()/zpci_clear_irq()
scripts/min-tool-version.sh: Raise minimum clang version to 13.0.0 for s390
s390/ipl: use register pair instead of register asm
s390/mem_detect: fix tprot() program check new psw handling
...
Linus Torvalds [Sun, 4 Jul 2021 19:07:54 +0000 (12:07 -0700)]
Merge tag 'csky-for-linus-5.14-rc1' of git://github.com/c-sky/csky-linux
Pull arch/csky updates from Guo Ren:
"A small cleanup and a fixup"
* tag 'csky-for-linus-5.14-rc1' of git://github.com/c-sky/csky-linux:
csky: Kconfig: Remove unused selects
csky: syscache: Fixup duplicate cache flush
Linus Torvalds [Sun, 4 Jul 2021 18:55:13 +0000 (11:55 -0700)]
Merge tag 'cxl-for-5.14' of git://git./linux/kernel/git/cxl/cxl
Pull CXL (Compute Express Link) updates from Dan Williams:
"This subsystem is still in the build-out phase as the bulk of the
update is improvements to enumeration and fleshing out the device
model. In terms of new features, more mailbox commands have been added
to the allowed-list in support of persistent memory provisioning
support targeting v5.15.
The critical update from an enumeration perspective is support for the
CXL Fixed Memory Window Structure that indicates to Linux which system
physical address ranges decode to the CXL Host Bridges in the system.
This allows the driver to detect which address ranges have been mapped
by firmware and what address ranges are available for future hotplug.
So, again, mostly skeleton this round, with more meat targeting v5.15.
Summary:
- Add support for the CXL Fixed Memory Window Structure, a recent
extension of the ACPI CEDT (CXL Early Discovery Table)
- Add infrastructure for component registers
- Add HDM (Host-managed device memory) decoder definitions
- Define a device model for an HDM decoder tree
- Bridge CXL persistent memory capabilities to an NVDIMM bus /
device-model
- Switch to fine grained mapping of CXL MMIO registers to allow
different drivers / system software to own individual register
blocks
- Enable media provisioning commands, and publish the label storage
area size in sysfs
- Miscellaneous cleanups and fixes"
* tag 'cxl-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (34 commits)
cxl/pci: Rename CXL REGLOC ID
cxl/acpi: Use the ACPI CFMWS to create static decoder objects
cxl/acpi: Add the Host Bridge base address to CXL port objects
cxl/pmem: Register 'pmem' / cxl_nvdimm devices
libnvdimm: Drop unused device power management support
libnvdimm: Export nvdimm shutdown helper, nvdimm_delete()
cxl/pmem: Add initial infrastructure for pmem support
cxl/core: Add cxl-bus driver infrastructure
cxl/pci: Add media provisioning required commands
cxl/component_regs: Fix offset
cxl/hdm: Fix decoder count calculation
cxl/acpi: Introduce cxl_decoder objects
cxl/acpi: Enumerate host bridge root ports
cxl/acpi: Add downstream port data to cxl_port instances
cxl/Kconfig: Default drivers to CONFIG_CXL_BUS
cxl/acpi: Introduce the root of a cxl_port topology
cxl/pci: Fixup devm_cxl_iomap_block() to take a 'struct device *'
cxl/pci: Add HDM decoder capabilities
cxl/pci: Reserve individual register block regions
cxl/pci: Map registers based on capabilities
...
Linus Torvalds [Sun, 4 Jul 2021 18:47:18 +0000 (11:47 -0700)]
Merge branch 'i2c/for-mergewindow' of git://git./linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- core supports now bus regulators controlling power for SCL/SDA
- quite some DT binding conversions to YAML
- added a seperate DT binding for the optional SMBus Alert feature
- documentation with examples how to deal with I2C sysfs files
- some bigger rework for the i801 driver
- and a few usual driver updates
* 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (42 commits)
i2c: ali1535: mention that the device should not be disabled
i2c: mpc: Restore reread of I2C status register
i2c: core-smbus: Expose PEC calculate function for generic use
Documentation: i2c: Add doc for I2C sysfs
i2c: core: Disable client irq on reboot/shutdown
dt-bindings: i2c: update bindings for MT8195 SoC
i2c: imx: Fix some checkpatch warnings
i2c: davinci: Simplify with dev_err_probe()
i2c: cadence: Simplify with dev_err_probe()
i2c: xiic: Simplify with dev_err_probe()
i2c: cadence: Clear HOLD bit before xfer_size register rolls over
dt-bindings: i2c: ce4100: Replace "ti,pcf8575" by "nxp,pcf8575"
i2c: i801: Improve i801_setup_hstcfg
i2c: i801: Use driver name constant instead of function dev_driver_string
i2c: i801: Simplify initialization of i2c_board_info in i801_probe_optional_slaves
i2c: i801: Improve status polling
i2c: cht-wc: Replace of_node by NULL
i2c: riic: Add RZ/G2L support
dt-bindings: i2c: renesas,riic: Document RZ/G2L I2C controller
dt-bindings: i2c: renesas,iic: Convert to json-schema
...
Martin K. Petersen [Sat, 3 Jul 2021 15:58:33 +0000 (11:58 -0400)]
scsi: blkcg: Fix application ID config options
Commit
d2bcbeab4200 ("scsi: blkcg: Add app identifier support for
blkcg") introduced an FC_APPID config option under SCSI. However, the
added config option is not used anywhere. Simply remove it.
The block layer BLK_CGROUP_FC_APPID config option is what actually
controls whether the application ID code should be built or not. Make
this option dependent on NVMe over FC since that is currently the only
transport which supports the capability.
Fixes:
d2bcbeab4200 ("scsi: blkcg: Add app identifier support for blkcg")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Guo Ren [Wed, 12 May 2021 07:58:41 +0000 (15:58 +0800)]
csky: Kconfig: Remove unused selects
- GENERIC_ALLOCATOR is duplicated
- Remove USB_ARCH_HAS_OHCI & USB_ARCH_HAS_EHCI, because they
have been removed from linux.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Guo Ren [Tue, 4 May 2021 06:08:44 +0000 (14:08 +0800)]
csky: syscache: Fixup duplicate cache flush
The current csky logic of sys_cacheflush is wrong, it'll cause
icache flush call dcache flush again. Now fixup it with a
conditional "break & fallthrough".
Fixes:
997153b9a75c ("csky: Add flush_icache_mm to defer flush icache all")
Fixes:
0679d29d3e23 ("csky: fix syscache.c fallthrough warning")
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Co-Developed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Linus Torvalds [Sat, 3 Jul 2021 18:57:42 +0000 (11:57 -0700)]
Merge tag 'leds-5.14-rc1' of git://git./linux/kernel/git/pavel/linux-leds
Pull LED updates from Pavel Machek:
"This contains quite a lot of fixes, with more fixes in my inbox that
did not make it (sorry)"
* tag 'leds-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (36 commits)
leds: lgm: Fix up includes
leds: ktd2692: Fix an error handling path
leds: as3645a: Fix error return code in as3645a_parse_node()
leds: turris-omnia: add missing MODULE_DEVICE_TABLE
leds: lp55xx: Initialize enable GPIO direction to output
leds: lm36274: Add missed property.h
leds: el15203000: Make error handling more robust
leds: pwm: Make error handling more robust
leds: lt3593: Make use of device properties
leds: lp50xx: Put fwnode in error case during ->probe()
leds: lm3697: Don't spam logs when probe is deferred
leds: lm3692x: Put fwnode in any case during ->probe()
leds: lm36274: Correct headers (of*.h -> mod_devicetable.h)
leds: lm36274: Put fwnode in error case during ->probe()
leds: lm3532: Make error handling more robust
leds: lm3532: select regmap I2C API
leds: lgm-sso: Drop duplicate NULL check for GPIO operations
leds: lgm-sso: Remove unneeded of_match_ptr()
leds: lgm-sso: Fix clock handling
leds: el15203000: Introduce to_el15203000_led() helper
...
Linus Torvalds [Sat, 3 Jul 2021 18:49:33 +0000 (11:49 -0700)]
Merge tag 'vfio-v5.14-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Module reference fixes, structure renaming (Max Gurtovoy)
- Export and use common pci_dev_trylock() (Luis Chamberlain)
- Enable direct mdev device creation and probing by parent (Christoph
Hellwig & Jason Gunthorpe)
- Fix mdpy error path leak (Colin Ian King)
- Fix mtty list entry leak (Jason Gunthorpe)
- Enforce mtty device limit (Alex Williamson)
- Resolve concurrent vfio-pci mmap faults (Alex Williamson)
* tag 'vfio-v5.14-rc1' of git://github.com/awilliam/linux-vfio:
vfio/pci: Handle concurrent vma faults
vfio/mtty: Enforce available_instances
vfio/mtty: Delete mdev_devices_list
vfio: use the new pci_dev_trylock() helper to simplify try lock
PCI: Export pci_dev_trylock() and pci_dev_unlock()
vfio/mdpy: Fix memory leak of object mdev_state->vconfig
vfio/iommu_type1: rename vfio_group struck to vfio_iommu_group
vfio/mbochs: Convert to use vfio_register_group_dev()
vfio/mdpy: Convert to use vfio_register_group_dev()
vfio/mtty: Convert to use vfio_register_group_dev()
vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind
vfio/mdev: Remove CONFIG_VFIO_MDEV_DEVICE
driver core: Export device_driver_attach()
driver core: Don't return EPROBE_DEFER to userspace during sysfs bind
driver core: Flow the return code from ->probe() through to sysfs bind
driver core: Better distinguish probe errors in really_probe
driver core: Pull required checks into driver_probe_device()
vfio/platform: remove unneeded parent_module attribute
vfio: centralize module refcount in subsystem layer
Linus Torvalds [Sat, 3 Jul 2021 18:41:14 +0000 (11:41 -0700)]
Merge branch 'work.namei' of git://git./linux/kernel/git/viro/vfs
Pull vfs name lookup updates from Al Viro:
"Small namei.c patch series, mostly to simplify the rules for nameidata
state. It's actually from the previous cycle - but I didn't post it
for review in time...
Changes visible outside of fs/namei.c: file_open_root() calling
conventions change, some freed bits in LOOKUP_... space"
* 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
namei: make sure nd->depth is always valid
teach set_nameidata() to handle setting the root as well
take LOOKUP_{ROOT,ROOT_GRABBED,JUMPED} out of LOOKUP_... space
switch file_open_root() to struct path
Linus Torvalds [Sat, 3 Jul 2021 18:30:04 +0000 (11:30 -0700)]
Merge branch 'work.iov_iter' of git://git./linux/kernel/git/viro/vfs
Pull iov_iter updates from Al Viro:
"iov_iter cleanups and fixes.
There are followups, but this is what had sat in -next this cycle. IMO
the macro forest in there became much thinner and easier to follow..."
* 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
csum_and_copy_to_pipe_iter(): leave handling of csum_state to caller
clean up copy_mc_pipe_to_iter()
pipe_zero(): we don't need no stinkin' kmap_atomic()...
iov_iter: clean csum_and_copy_...() primitives up a bit
copy_page_from_iter(): don't need kmap_atomic() for kvec/bvec cases
copy_page_to_iter(): don't bother with kmap_atomic() for bvec/kvec cases
iterate_xarray(): only of the first iteration we might get offset != 0
pull handling of ->iov_offset into iterate_{iovec,bvec,xarray}
iov_iter: make iterator callbacks use base and len instead of iovec
iov_iter: make the amount already copied available to iterator callbacks
iov_iter: get rid of separate bvec and xarray callbacks
iov_iter: teach iterate_{bvec,xarray}() about possible short copies
iterate_bvec(): expand bvec.h macro forest, massage a bit
iov_iter: unify iterate_iovec and iterate_kvec
iov_iter: massage iterate_iovec and iterate_kvec to logics similar to iterate_bvec
iterate_and_advance(): get rid of magic in case when n is 0
csum_and_copy_to_iter(): massage into form closer to csum_and_copy_from_iter()
iov_iter: replace iov_iter_copy_from_user_atomic() with iterator-advancing variant
[xarray] iov_iter_npages(): just use DIV_ROUND_UP()
iov_iter_npages(): don't bother with iterate_all_kinds()
...
Linus Torvalds [Sat, 3 Jul 2021 18:23:40 +0000 (11:23 -0700)]
Merge branch 'work.d_path' of git://git./linux/kernel/git/viro/vfs
Pull vfs d_path() updates from Al Viro:
"d_path.c refactoring"
* 'work.d_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
getcwd(2): clean up error handling
d_path: prepend_path() is unlikely to return non-zero
d_path: prepend_path(): lift the inner loop into a new helper
d_path: prepend_path(): lift resetting b in case when we'd return 3 out of loop
d_path: prepend_path(): get rid of vfsmnt
d_path: introduce struct prepend_buffer
d_path: make prepend_name() boolean
d_path: lift -ENAMETOOLONG handling into callers of prepend_path()
d_path: don't bother with return value of prepend()
getcwd(2): saner logics around prepend_path() call
d_path: get rid of path_with_deleted()
d_path: regularize handling of root dentry in __dentry_path()
d_path: saner calling conventions for __dentry_path()
d_path: "\0" is {0,0}, not {0}
Linus Torvalds [Sat, 3 Jul 2021 18:13:22 +0000 (11:13 -0700)]
Merge tag 'trace-v5.14' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
- Added option for per CPU threads to the hwlat tracer
- Have hwlat tracer handle hotplug CPUs
- New tracer: osnoise, that detects latency caused by interrupts,
softirqs and scheduling of other tasks.
- Added timerlat tracer that creates a thread and measures in detail
what sources of latency it has for wake ups.
- Removed the "success" field of the sched_wakeup trace event. This has
been hardcoded as "1" since 2015, no tooling should be looking at it
now. If one exists, we can revert this commit, fix that tool and try
to remove it again in the future.
- tgid mapping fixed to handle more than PID_MAX_DEFAULT pids/tgids.
- New boot command line option "tp_printk_stop", as tp_printk causes
trace events to write to console. When user space starts, this can
easily live lock the system. Having a boot option to stop just after
boot up is useful to prevent that from happening.
- Have ftrace_dump_on_oops boot command line option take numbers that
match the numbers shown in /proc/sys/kernel/ftrace_dump_on_oops.
- Bootconfig clean ups, fixes and enhancements.
- New ktest script that tests bootconfig options.
- Add tracepoint_probe_register_may_exist() to register a tracepoint
without triggering a WARN*() if it already exists. BPF has a path
from user space that can do this. All other paths are considered a
bug.
- Small clean ups and fixes
* tag 'trace-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (49 commits)
tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT
tracing: Simplify & fix saved_tgids logic
treewide: Add missing semicolons to __assign_str uses
tracing: Change variable type as bool for clean-up
trace/timerlat: Fix indentation on timerlat_main()
trace/osnoise: Make 'noise' variable s64 in run_osnoise()
tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
tracing: Fix spelling in osnoise tracer "interferences" -> "interference"
Documentation: Fix a typo on trace/osnoise-tracer
trace/osnoise: Fix return value on osnoise_init_hotplug_support
trace/osnoise: Make interval u64 on osnoise_main
trace/osnoise: Fix 'no previous prototype' warnings
tracing: Have osnoise_main() add a quiescent state for task rcu
seq_buf: Make trace_seq_putmem_hex() support data longer than 8
seq_buf: Fix overflow in seq_buf_putmem_hex()
trace/osnoise: Support hotplug operations
trace/hwlat: Support hotplug operations
trace/hwlat: Protect kdata->kthread with get/put_online_cpus
trace: Add timerlat tracer
trace: Add osnoise tracer
...
Linus Torvalds [Sat, 3 Jul 2021 17:54:08 +0000 (10:54 -0700)]
Merge tag 'devicetree-for-5.14' of git://git./linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
- Refine reserved memory nomap handling
- Merge some PCI and non-PCI address handling implementations
- Simplify of_address.h header ifdefs
- Improve printk handling of some 64-bit types
- Convert adi,adv7511, Arm ccree, Arm SCMI, Arm SCU, Arm TWD timer, Arm
VIC, arm,sbsa-gwdt, Arm/Amlogic SCPI, Aspeed I2C, Broadcom iProc PWM,
linaro,optee-tz, MDIO GPIO, Mediatek RNG, MTD physmap, NXP
pcf8563/pcf85263/pcf85363, Renesas TPU, renesas,emev2-smu,
renesas,r9a06g032-sysctrl, sysc-rmobile, Tegra20 EMC, TI AM56 PCI, TI
OMAP mailbox, TI SCI bindings, virtio-mmio, Zynq FPGA, and ZynqMP RTC
to DT schema
- Convert mux and mux controller bindings to schema. This includes MDIO
IIO, and I2C muxes.
- Add Arm PL031 RTC binding schema
- Add vendor prefixes for StarFive Technology Co. Ltd. and Insignal Ltd
- Fix some stale doc references
- Remove stale property-units.txt. Superseded by schema in dt-schema
repo.
- Fixes for 'unevaluatedProperties' handling (enabled with experimental
json-schema support)
- Drop redundant usage of minItems and maxItems across the tree
- Update some examples to use bindings with a schema
* tag 'devicetree-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (83 commits)
dt-bindings: Fix 'unevaluatedProperties' errors in DT graph users
dt-bindings: display: renesas,du: Fix 'ports' reference
dt-bindings: media: adv7180: Add missing video-interfaces.yaml reference
dt-bindings: crypto: ccree: Convert to json-schema
dt-bindings: fpga: zynq: convert bindings to YAML
dt-bindings: rtc: zynqmp: convert bindings to YAML
dt-bindings: interrupt-controller: Convert ARM VIC to json-schema
of: of_reserved_mem: mark nomap memory instead of removing
of: of_reserved_mem: only call memblock_free for normal reserved memory
dt-bindings: Drop redundant minItems/maxItems
dt-bindings: spmi: Correct 'reg' schema
of: reserved-memory: Add stub for RESERVEDMEM_OF_DECLARE()
dt-bindings: clk: vc5: Fix example
dt-bindings: timer: renesas,tmu: add r8a779a0 TMU support
dt-bindings: drm: bridge: adi,adv7511.txt: convert to yaml
dt-bindings: PCI: ti,am65: Convert PCIe host/endpoint mode dt-bindings to YAML
of: Remove superfluous casts when printing u64 values
of: Fix truncation of memory sizes on 32-bit platforms
dt-bindings: rtc: nxp,pcf8563: Absorb pcf85263/pcf85363 bindings
dt-bindings: pwm: Use examples with documented/matching schema
...
Linus Torvalds [Sat, 3 Jul 2021 05:05:52 +0000 (22:05 -0700)]
Revert "ALSA: usb-audio: Reduce latency at playback start"
This reverts commit
9ce650a75a3b262c90789b42aedee8fc2ee04d53.
This commit causes watchdog lockups on my machine, and while I have no
idea what the cause is, it bisected right to this commit, and reverting
the change promptly fixes it.
At least occasionally one of the watchdog call traces was
Call Trace:
_raw_spin_lock_irqsave+0x35/0x40
snd_pcm_period_elapsed+0x1b/0xa0 [snd_pcm]
snd_usb_endpoint_start+0x1a0/0x3c0 [snd_usb_audio]
start_endpoints+0x23/0x90 [snd_usb_audio]
snd_usb_substream_playback_trigger+0x7b/0x1a0 [snd_usb_audio]
snd_pcm_common_ioctl+0x1c44/0x2360 [snd_pcm]
snd_pcm_ioctl+0x2e/0x40 [snd_pcm]
__se_sys_ioctl+0x72/0xc0
do_syscall_64+0x4c/0xa0
entry_SYSCALL_64_after_hwframe+0x44/0xae
so presumably it's a locking error on that substream spinlock that
snd_pcm_period_elapsed() takes. But at this point I just want to have a
working system so that I can continue the merge window work tomorrow.
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 2 Jul 2021 22:25:23 +0000 (15:25 -0700)]
Merge tag 'sound-5.14-rc1' of git://git./linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"As the diffstat scatters over the tree, we've got many tree-wide small
changes, but also got quite a few intrusive changes in the core side.
The only ABI-visible core change is the new rawmidi framing mode
support while others are kernel-internal, mostly code refactoring
and/or nice improvements.
Here are some highlights:
Core:
- A new framing access mode for rawmidi to get timestamps
- Cleanup / refactoring of buffer memory management helper code
- Support for automatic negotiation of ASoC DAI formats
- Revival of software suspend for PCM and control core, as a
preliminary work for PCI BAR rescan support
ASoC:
- Accessory detection support for several Qualcomm parts
- Support for IEC958 control with hdmi-codec
- Merging of Tegra machine drivers into a single driver
- Support for AmLogic SM1 TOACODEC, Intel AlderLake-M, several NXP
i.MX8 variants, NXP TFA1 and TDF9897, Rockchip RK817, Qualcomm
Quinary MI2S, Texas Instruments TAS2505
USB-audio:
- Reduction of latency at playback start
- Code cleanup / fixes of usx2y driver
- Scarlett2 mixer code fixes and enhancements
- Quirks for Ozone and Denon devices
HD-audio:
- A few quirks for HP and ASUS machines
- Display power management fixes
Others:
- FireWire code refactoring and enhancements
- Tree-wide trivial coding-style fixes"
* tag 'sound-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (594 commits)
ALSA: usb-audio: scarlett2: Fix for loop increment in scarlett2_usb_get_config
ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8
ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 445 G8
ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 450 G8
ALSA: hda/realtek - Add ALC285 HP init procedure
ALSA: hda/realtek - Add type for ALC287
ALSA: scarlett2: Fix scarlett2_*_ctl_put() return values again
ALSA: scarlett2: Fix pad count for 18i8 Gen 3
ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 830 G8 Notebook PC
ALSA: firewire-lib: Fix 'amdtp_domain_start()' when no AMDTP_OUT_STREAM stream is found
ASoC: qcom: lpass-cpu: mark IRQ_CLEAR register as volatile and readable
ALSA: hda: Release codec display power during shutdown/reboot
ALSA: hda: Release controller display power during shutdown/reboot
ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too
ASoC: fsl: remove unnecessary oom message
ASoC: tlv320aic32x4: dt-bindings: add TAS2505 to compatible
ASoC: tlv320aic32x4: add support for TAS2505
ASoC: tlv320aic32x4: add type to device private data struct
ASoC: tegra30: ahub: Use devm_platform_get_and_ioremap_resource()
ASoC: tegra: tegra210_admaif: Use devm_platform_get_and_ioremap_resource()
...
Linus Torvalds [Fri, 2 Jul 2021 22:14:36 +0000 (15:14 -0700)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This series consists of the usual driver updates (ufs, ibmvfc,
megaraid_sas, lpfc, elx, mpi3mr, qedi, iscsi, storvsc, mpt3sas) with
elx and mpi3mr being new drivers.
The major core change is a rework to drop the status byte handling
macros and the old bit shifted definitions and the rest of the updates
are minor fixes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (287 commits)
scsi: aha1740: Avoid over-read of sense buffer
scsi: arcmsr: Avoid over-read of sense buffer
scsi: ips: Avoid over-read of sense buffer
scsi: ufs: ufs-mediatek: Add missing of_node_put() in ufs_mtk_probe()
scsi: elx: libefc: Fix IRQ restore in efc_domain_dispatch_frame()
scsi: elx: libefc: Fix less than zero comparison of a unsigned int
scsi: elx: efct: Fix pointer error checking in debugfs init
scsi: elx: efct: Fix is_originator return code type
scsi: elx: efct: Fix link error for _bad_cmpxchg
scsi: elx: efct: Eliminate unnecessary boolean check in efct_hw_command_cancel()
scsi: elx: efct: Do not use id uninitialized in efct_lio_setup_session()
scsi: elx: efct: Fix error handling in efct_hw_init()
scsi: elx: efct: Remove redundant initialization of variable lun
scsi: elx: efct: Fix spelling mistake "Unexected" -> "Unexpected"
scsi: lpfc: Fix build error in lpfc_scsi.c
scsi: target: iscsi: Remove redundant continue statement
scsi: qla4xxx: Remove redundant continue statement
scsi: ppa: Switch to use module_parport_driver()
scsi: imm: Switch to use module_parport_driver()
scsi: mpt3sas: Fix error return value in _scsih_expander_add()
...
Linus Torvalds [Fri, 2 Jul 2021 21:30:27 +0000 (14:30 -0700)]
Merge tag 'xfs-5.14-merge-6' of git://git./fs/xfs/xfs-linux
Pull xfs updates from Darrick Wong:
"Most of the work this cycle has been on refactoring various parts of
the codebase. The biggest non-cleanup changes are (1) reducing the
number of cache flushes sent when writing the log; (2) a substantial
number of log recovery fixes; and (3) I started accepting pull
requests from contributors if the commits in their branches match
what's been sent to the list.
For a week or so I /had/ staged a major cleanup of the logging code
from Dave Chinner, but it exposed so many lurking bugs in other parts
of the logging and log recovery code that I decided to defer that
patchset until we can address those latent bugs.
Larger cleanups this time include walking the incore inode cache (me)
and rework of the extended attribute code (Allison) to prepare it for
adding logged xattr updates (and directory tree parent pointers) in
future releases.
Summary:
- Refactor the buffer cache to use bulk page allocation
- Convert agnumber-based AG iteration to walk per-AG structures
- Clean up some unit conversions and other code warts
- Reduce spinlock contention in the directio fastpath
- Collapse all the inode cache walks into a single function
- Remove indirect function calls from the inode cache walk code
- Dramatically reduce the number of cache flushes sent when writing
log buffers
- Preserve inode sickness reports for longer
- Rename xfs_eofblocks since it controls inode cache walks
- Refactor the extended attribute code to prepare it for the addition
of log intent items to make xattrs fully transactional
- A few fixes to earlier large patchsets
- Log recovery fixes so that we don't accidentally mark the log clean
when log intent recovery fails
- Fix some latent SOB errors
- Clean up shutdown messages that get logged to dmesg
- Fix a regression in the online shrink code
- Fix a UAF in the buffer logging code if the fs goes offline
- Fix uninitialized error variables
- Fix a UAF in the CIL when commited log item callbacks race with a
shutdown
- Fix a bug where the CIL could hang trying to push part of the log
ring buffer that hasn't been filled yet"
* tag 'xfs-5.14-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (102 commits)
xfs: don't wait on future iclogs when pushing the CIL
xfs: Fix a CIL UAF by getting get rid of the iclog callback lock
xfs: remove callback dequeue loop from xlog_state_do_iclog_callbacks
xfs: don't nest icloglock inside ic_callback_lock
xfs: Initialize error in xfs_attr_remove_iter
xfs: fix endianness issue in xfs_ag_shrink_space
xfs: remove dead stale buf unpin handling code
xfs: hold buffer across unpin and potential shutdown processing
xfs: force the log offline when log intent item recovery fails
xfs: fix log intent recovery ENOSPC shutdowns when inactivating inodes
xfs: shorten the shutdown messages to a single line
xfs: print name of function causing fs shutdown instead of hex pointer
xfs: fix type mismatches in the inode reclaim functions
xfs: separate primary inode selection criteria in xfs_iget_cache_hit
xfs: refactor the inode recycling code
xfs: add iclog state trace events
xfs: xfs_log_force_lsn isn't passed a LSN
xfs: Fix CIL throttle hang when CIL space used going backwards
xfs: journal IO cache flush reductions
xfs: remove need_start_rec parameter from xlog_write()
...
Linus Torvalds [Fri, 2 Jul 2021 21:25:17 +0000 (14:25 -0700)]
Merge tag 'jfs-5.14' of git://github.com/kleikamp/linux-shaggy
Pull jfs updates from David Kleikamp:
"JFS fixes for 5.14"
* tag 'jfs-5.14' of git://github.com/kleikamp/linux-shaggy:
jfs: Avoid field-overflowing memcpy()
jfs: remove unnecessary oom message
jfs: fix GPF in diFree
fs/jfs: Fix missing error code in lmLogInit()
jfs: Remove trailing semicolon in macros
fs: Fix typo issue
Linus Torvalds [Fri, 2 Jul 2021 21:13:21 +0000 (14:13 -0700)]
Merge tag 'configfs-5.13' of git://git.infradead.org/users/hch/configfs
Pull configfs updates from Christoph Hellwig:
- fix a memleak in configfs_release_bin_file (Chung-Chiang Cheng)
- implement the .read_iter and .write_iter (Bart Van Assche)
- minor cleanups (Bart Van Assche, me)
* tag 'configfs-5.13' of git://git.infradead.org/users/hch/configfs:
configfs: simplify configfs_release_bin_file
configfs: fix memleak in configfs_release_bin_file
configfs: implement the .read_iter and .write_iter methods
configfs: drop pointless kerneldoc comments
configfs: fix the kerneldoc comment for configfs_create_bin_file
Linus Torvalds [Fri, 2 Jul 2021 20:31:08 +0000 (13:31 -0700)]
Merge tag 'dma-mapping-5.14' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- a trivivial whitespace fix (Zhen Lei)
- report -EEXIST errors in add_dma_entry (Hamza Mahfooz)
* tag 'dma-mapping-5.14' of git://git.infradead.org/users/hch/dma-mapping:
dma-debug: report -EEXIST errors in add_dma_entry
dma-mapping: remove a trailing space
Linus Torvalds [Fri, 2 Jul 2021 20:22:47 +0000 (13:22 -0700)]
Merge tag 'iommu-updates-v5.14' of git://git./linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
- SMMU Updates from Will Deacon:
- SMMUv3:
- Support stalling faults for platform devices
- Decrease defaults sizes for the event and PRI queues
- SMMUv2:
- Support for a new '->probe_finalize' hook, needed by Nvidia
- Even more Qualcomm compatible strings
- Avoid Adreno TTBR1 quirk for DB820C platform
- Intel VT-d updates from Lu Baolu:
- Convert Intel IOMMU to use sva_lib helpers in iommu core
- ftrace and debugfs supports for page fault handling
- Support asynchronous nested capabilities
- Various misc cleanups
- Support for new VIOT ACPI table to make the VirtIO IOMMU
available on x86
- Add the amd_iommu=force_enable command line option to enable
the IOMMU on platforms where they are known to cause problems
- Support for version 2 of the Rockchip IOMMU
- Various smaller fixes, cleanups and refactorings
* tag 'iommu-updates-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (66 commits)
iommu/virtio: Enable x86 support
iommu/dma: Pass address limit rather than size to iommu_setup_dma_ops()
ACPI: Add driver for the VIOT table
ACPI: Move IOMMU setup code out of IORT
ACPI: arm64: Move DMA setup operations out of IORT
iommu/vt-d: Fix dereference of pointer info before it is null checked
iommu: Update "iommu.strict" documentation
iommu/arm-smmu: Check smmu->impl pointer before dereferencing
iommu/arm-smmu-v3: Remove unnecessary oom message
iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails
iommu/vt-d: Fix linker error on 32-bit
iommu/vt-d: No need to typecast
iommu/vt-d: Define counter explicitly as unsigned int
iommu/vt-d: Remove unnecessary braces
iommu/vt-d: Removed unused iommu_count in dmar domain
iommu/vt-d: Use bitfields for DMAR capabilities
iommu/vt-d: Use DEVICE_ATTR_RO macro
iommu/vt-d: Fix out-bounds-warning in intel/svm.c
iommu/vt-d: Add PRQ handling latency sampling
...
Linus Torvalds [Fri, 2 Jul 2021 20:09:15 +0000 (13:09 -0700)]
Merge tag 'linux-kselftest-next-5.14-rc1' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull Kselftest update from Shuah Khan:
"Fixes to existing tests and framework:
- migrate sgx test to kselftest harness
- add new test cases to sgx test
- ftrace test fix event-no-pid on 1-core machine
- splice test adjust for handler fallback removal"
* tag 'linux-kselftest-next-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/sgx: remove checks for file execute permissions
selftests/ftrace: fix event-no-pid on 1-core machine
selftests/sgx: Refine the test enclave to have storage
selftests/sgx: Add EXPECT_EEXIT() macro
selftests/sgx: Dump enclave memory map
selftests/sgx: Migrate to kselftest harness
selftests/sgx: Rename 'eenter' and 'sgx_call_vdso'
selftests: timers: rtcpie: skip test if default RTC device does not exist
selftests: lib.mk: Also install "config" and "settings"
selftests: splice: Adjust for handler fallback removal
selftests/tls: Add {} to avoid static checker warning
selftests/resctrl: Fix incorrect parsing of option "-t"
Linus Torvalds [Fri, 2 Jul 2021 19:58:26 +0000 (12:58 -0700)]
Merge tag 'linux-kselftest-kunit-fixes-5.14-rc1' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull KUnit update from Shuah Khan:
"Fixes and features:
- add support for skipped tests
- introduce kunit_kmalloc_array/kunit_kcalloc() helpers
- add gnu_printf specifiers
- add kunit_shutdown
- add unit test for filtering suites by names
- convert lib/test_list_sort.c to use KUnit
- code organization moving default config to tools/testing/kunit
- refactor of internal parser input handling
- cleanups and updates to documentation
- code cleanup related to casts"
* tag 'linux-kselftest-kunit-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits)
kunit: add unit test for filtering suites by names
kasan: test: make use of kunit_skip()
kunit: test: Add example tests which are always skipped
kunit: tool: Support skipped tests in kunit_tool
kunit: Support skipped tests
thunderbolt: test: Reinstate a few casts of bitfields
kunit: tool: internal refactor of parser input handling
lib/test: convert lib/test_list_sort.c to use KUnit
kunit: introduce kunit_kmalloc_array/kunit_kcalloc() helpers
kunit: Remove the unused all_tests.config
kunit: Move default config from arch/um -> tools/testing/kunit
kunit: arch/um/configs: Enable KUNIT_ALL_TESTS by default
kunit: Add gnu_printf specifiers
lib/cmdline_kunit: Remove a cast which are no-longer required
kernel/sysctl-test: Remove some casts which are no-longer required
thunderbolt: test: Remove some casts which are no longer required
mmc: sdhci-of-aspeed: Remove some unnecessary casts from KUnit tests
iio: Remove a cast in iio-test-format which is no longer required
device property: Remove some casts in property-entry-test
Documentation: kunit: Clean up some string casts in examples
...
Linus Torvalds [Fri, 2 Jul 2021 19:54:34 +0000 (12:54 -0700)]
Merge tag 'powerpc-5.14-1' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- A big series refactoring parts of our KVM code, and converting some
to C.
- Support for ARCH_HAS_SET_MEMORY, and ARCH_HAS_STRICT_MODULE_RWX on
some CPUs.
- Support for the Microwatt soft-core.
- Optimisations to our interrupt return path on 64-bit.
- Support for userspace access to the NX GZIP accelerator on PowerVM on
Power10.
- Enable KUAP and KUEP by default on 32-bit Book3S CPUs.
- Other smaller features, fixes & cleanups.
Thanks to: Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann, Athira
Rajeev, Baokun Li, Benjamin Herrenschmidt, Bharata B Rao, Christophe
Leroy, Daniel Axtens, Daniel Henrique Barboza, Finn Thain, Geoff Levand,
Haren Myneni, Jason Wang, Jiapeng Chong, Joel Stanley, Jordan Niethe,
Kajol Jain, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas
Piggin, Nick Desaulniers, Paul Mackerras, Russell Currey, Sathvika
Vasireddy, Shaokun Zhang, Stephen Rothwell, Sudeep Holla, Suraj Jitindar
Singh, Tom Rix, Vaibhav Jain, YueHaibing, Zhang Jianhua, and Zhen Lei.
* tag 'powerpc-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (218 commits)
powerpc: Only build restart_table.c for 64s
powerpc/64s: move ret_from_fork etc above __end_soft_masked
powerpc/64s/interrupt: clean up interrupt return labels
powerpc/64/interrupt: add missing kprobe annotations on interrupt exit symbols
powerpc/64: enable MSR[EE] in irq replay pt_regs
powerpc/64s/interrupt: preserve regs->softe for NMI interrupts
powerpc/64s: add a table of implicit soft-masked addresses
powerpc/64e: remove implicit soft-masking and interrupt exit restart logic
powerpc/64e: fix CONFIG_RELOCATABLE build warnings
powerpc/64s: fix hash page fault interrupt handler
powerpc/4xx: Fix setup_kuep() on SMP
powerpc/32s: Fix setup_{kuap/kuep}() on SMP
powerpc/interrupt: Use names in check_return_regs_valid()
powerpc/interrupt: Also use exit_must_hard_disable() on PPC32
powerpc/sysfs: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE
powerpc/ptrace: Refactor regs_set_return_{msr/ip}
powerpc/ptrace: Move set_return_regs_changed() before regs_set_return_{msr/ip}
powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
powerpc/pseries/vas: Include irqdomain.h
powerpc: mark local variables around longjmp as volatile
...
Linus Torvalds [Fri, 2 Jul 2021 19:43:40 +0000 (12:43 -0700)]
Merge tag 'asm-generic-unaligned-5.14' of git://git./linux/kernel/git/arnd/asm-generic
Pull asm/unaligned.h unification from Arnd Bergmann:
"Unify asm/unaligned.h around struct helper
The get_unaligned()/put_unaligned() helpers are traditionally
architecture specific, with the two main variants being the
"access-ok.h" version that assumes unaligned pointer accesses always
work on a particular architecture, and the "le-struct.h" version that
casts the data to a byte aligned type before dereferencing, for
architectures that cannot always do unaligned accesses in hardware.
Based on the discussion linked below, it appears that the access-ok
version is not realiable on any architecture, but the struct version
probably has no downsides. This series changes the code to use the
same implementation on all architectures, addressing the few
exceptions separately"
Link: https://lore.kernel.org/lkml/75d07691-1e4f-741f-9852-38c0b4f520bc@synopsys.com/
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100363
Link: https://lore.kernel.org/lkml/20210507220813.365382-14-arnd@kernel.org/
Link: git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git unaligned-rework-v2
Link: https://lore.kernel.org/lkml/CAHk-=whGObOKruA_bU3aPGZfoDqZM1_9wBkwREp0H0FgR-90uQ@mail.gmail.com/
* tag 'asm-generic-unaligned-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: simplify asm/unaligned.h
asm-generic: uaccess: 1-byte access is always aligned
netpoll: avoid put_unaligned() on single character
mwifiex: re-fix for unaligned accesses
apparmor: use get_unaligned() only for multi-byte words
partitions: msdos: fix one-byte get_unaligned()
asm-generic: unaligned always use struct helpers
asm-generic: unaligned: remove byteshift helpers
powerpc: use linux/unaligned/le_struct.h on LE power7
m68k: select CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
sh: remove unaligned access for sh4a
openrisc: always use unaligned-struct header
asm-generic: use asm-generic/unaligned.h for most architectures
Linus Torvalds [Fri, 2 Jul 2021 19:24:31 +0000 (12:24 -0700)]
Merge tag 'perf-tools-for-v5.14-2021-07-01' of git://git./linux/kernel/git/acme/linux
Pull perf tool updates from Arnaldo Carvalho de Melo:
"Tools:
- Add cgroup support for 'perf top' (-G).
- Add support for KVM MSRs in 'perf kvm stat'
- Support probes on init functions in 'perf probe', to support the
bootconfig format.
- Improve error reporting in 'perf probe'.
- No need to synthesize BUILD_ID records in 'perf inject' if the
MMAP2 records have build ids already.
- Allow toggling source code ('s' hotkey) in 'perf annotate' in all
lines.
- Add itrace options support to 'perf annotate'.
- Support to custom DSO filters for 'perf script'.
Hardware enablement:
- Support the HYBRID_TOPOLOGY and HYBRID_CPU_PMU_CAPS features in the
perf.data file header.
- Support PMU prefix for mem-load and mem-store events, to support
hybrid (BIG little) CPUs such as Intel's Alderlake.
- Support hybrid CPUs in 'perf mem' and 'perf c2c'.
Hardware tracing:
- Intel PT now supports tracing KVM guests.
- Timestamp improvements for ARM's Coresight.
Build:
- Add 'make -C tools/perf build-test' entries for
libopencsd/CORESIGHT=1 and libbpf/LIBBPF_DYNAMIC=1.
- Use bison's --file-prefix-map option to avoid storing full paths
when using O= in the perf build.
Tests:
- Improve the 'perf test' entries for libpfm4 and BPF counters.
Misc:
- Sync msr-index.h, mount.h, kvm headers with the kernel originals.
- Add vendor events and metrics for Intel's Icelake Server & Client"
* tag 'perf-tools-for-v5.14-2021-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (123 commits)
perf session: Add missing evlist__delete when deleting a session
perf annotate: Allow 's' on source code lines
perf dlfilter: Add object_code() to perf_dlfilter_fns
perf dlfilter: Add attr() to perf_dlfilter_fns
perf dlfilter: Add srcline() to perf_dlfilter_fns
perf dlfilter: Add insn() to perf_dlfilter_fns
perf dlfilter: Add resolve_address() to perf_dlfilter_fns
perf build: Install perf_dlfilter.h
perf script: Add option to pass arguments to dlfilters
perf script: Add option to list dlfilters
perf script: Add dlfilter__filter_event_early()
perf script: Add API for filtering via dynamically loaded shared object
perf llvm: Return -ENOMEM when asprintf() fails
perf cs-etm: Delay decode of non-timeless data until cs_etm__flush_events()
tools headers UAPI: Synch KVM's svm.h header with the kernel
tools kvm headers arm64: Update KVM headers from the kernel sources
tools headers UAPI: Sync linux/kvm.h with the kernel sources
tools headers cpufeatures: Sync with the kernel sources
tools include UAPI: Update linux/mount.h copy
tools arch x86: Sync the msr-index.h copy with the kernel sources
...
Linus Torvalds [Fri, 2 Jul 2021 19:08:10 +0000 (12:08 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
"190 patches.
Subsystems affected by this patch series: mm (hugetlb, userfaultfd,
vmscan, kconfig, proc, z3fold, zbud, ras, mempolicy, memblock,
migration, thp, nommu, kconfig, madvise, memory-hotplug, zswap,
zsmalloc, zram, cleanups, kfence, and hmm), procfs, sysctl, misc,
core-kernel, lib, lz4, checkpatch, init, kprobes, nilfs2, hfs,
signals, exec, kcov, selftests, compress/decompress, and ipc"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (190 commits)
ipc/util.c: use binary search for max_idx
ipc/sem.c: use READ_ONCE()/WRITE_ONCE() for use_global_lock
ipc: use kmalloc for msg_queue and shmid_kernel
ipc sem: use kvmalloc for sem_undo allocation
lib/decompressors: remove set but not used variabled 'level'
selftests/vm/pkeys: exercise x86 XSAVE init state
selftests/vm/pkeys: refill shadow register after implicit kernel write
selftests/vm/pkeys: handle negative sys_pkey_alloc() return code
selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
kcov: add __no_sanitize_coverage to fix noinstr for all architectures
exec: remove checks in __register_bimfmt()
x86: signal: don't do sas_ss_reset() until we are certain that sigframe won't be abandoned
hfsplus: report create_date to kstat.btime
hfsplus: remove unnecessary oom message
nilfs2: remove redundant continue statement in a while-loop
kprobes: remove duplicated strong free_insn_page in x86 and s390
init: print out unknown kernel parameters
checkpatch: do not complain about positive return values starting with EPOLL
checkpatch: improve the indented label test
checkpatch: scripts/spdxcheck.py now requires python3
...
Wolfram Sang [Fri, 25 Jun 2021 15:17:58 +0000 (17:17 +0200)]
i2c: ali1535: mention that the device should not be disabled
The comment from the i801 driver is valid here, too, so copy it.
Reported-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Chris Packham [Fri, 2 Jul 2021 03:27:24 +0000 (15:27 +1200)]
i2c: mpc: Restore reread of I2C status register
Prior to commit
1538d82f4647 ("i2c: mpc: Interrupt driven transfer") the
old interrupt handler would reread MPC_I2C_SR after checking the CSR_MIF
bit. When the driver was re-written this was removed as it seemed
unnecessary. However as it turns out this is necessary for i2c devices
which do clock stretching otherwise we end up thinking the bus is still
busy when processing the interrupt.
Fixes:
1538d82f4647 ("i2c: mpc: Interrupt driven transfer")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Linus Torvalds [Fri, 2 Jul 2021 00:22:14 +0000 (17:22 -0700)]
Merge branch 'for-5.14' of git://git./linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
- cgroup.kill is added which implements atomic killing of the whole
subtree.
Down the line, this should be able to replace the multiple userland
implementations of "keep killing till empty".
- PSI can now be turned off at boot time to avoid overhead for
configurations which don't care about PSI.
* 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: make per-cgroup pressure stall tracking configurable
cgroup: Fix kernel-doc
cgroup: inline cgroup_task_freeze()
tests/cgroup: test cgroup.kill
tests/cgroup: move cg_wait_for(), cg_prepare_for_wait()
tests/cgroup: use cgroup.kill in cg_killall()
docs/cgroup: add entry for cgroup.kill
cgroup: introduce cgroup.kill
Linus Torvalds [Fri, 2 Jul 2021 00:17:24 +0000 (17:17 -0700)]
Merge branch 'for-5.14' of git://git./linux/kernel/git/dennis/percpu
Pull percpu updates from Dennis Zhou:
- percpu chunk depopulation - depopulate backing pages for chunks with
empty pages when we exceed a global threshold without those pages.
This lets us reclaim a portion of memory that would previously be
lost until the full chunk would be freed (possibly never).
- memcg accounting cleanup - previously separate chunks were managed
for normal allocations and __GFP_ACCOUNT allocations. These are now
consolidated which cleans up the code quite a bit.
- a few misc clean ups for clang warnings
* 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
percpu: optimize locking in pcpu_balance_workfn()
percpu: initialize best_upa variable
percpu: rework memcg accounting
mm, memcg: introduce mem_cgroup_kmem_disabled()
mm, memcg: mark cgroup_memory_nosocket, nokmem and noswap as __ro_after_init
percpu: make symbol 'pcpu_free_slot' static
percpu: implement partial chunk depopulation
percpu: use pcpu_free_slot instead of pcpu_nr_slots - 1
percpu: factor out pcpu_check_block_hint()
percpu: split __pcpu_balance_workfn()
percpu: fix a comment about the chunks ordering
Linus Torvalds [Fri, 2 Jul 2021 00:03:11 +0000 (17:03 -0700)]
Merge tag 'mips_5.14' of git://git./linux/kernel/git/mips/linux
Pull MIPS updates from Thomas Bogendoerfer:
- add support for OpeneEmbed SOM9331 board
- Ingenic fixes/improvments
- other fixes and cleanups
* tag 'mips_5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (39 commits)
MIPS: Fix PKMAP with 32-bit MIPS huge page support
MIPS: CI20: Add second percpu timer for SMP.
MIPS: CI20: Reduce clocksource to 750 kHz.
MIPS: Ingenic: Add MAC syscon nodes for Ingenic SoCs.
dt-bindings: clock: Add documentation for MAC PHY control bindings.
MIPS: X1830: Respect cell count of common properties.
MIPS: set mips32r5 for virt extensions
MIPS: loongsoon64: Reserve memory below starting pfn to prevent Oops
MIPS: MT extensions are not available on MIPS32r1
mips/kvm: Use BUG_ON instead of if condition followed by BUG
MIPS: OCTEON: octeon-usb: Use devm_platform_get_and_ioremap_resource()
MIPS: add PMD table accounting into MIPS'pmd_alloc_one
MIPS: Loongson64: fix spelling of SPDX tag
MIPS: ingenic: rs90: Add dedicated VRAM memory region
MIPS: ingenic: gcw0: Set codec to cap-less mode for FM radio
MIPS: ingenic: jz4780: Fix I2C nodes to match DT doc
MIPS: ingenic: Select CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
MIPS: Kconfig: ingenic: Ensure MACH_INGENIC_GENERIC selects all SoCs
MIPS: cpu-probe: Fix FPU detection on Ingenic JZ4760(B)
MIPS: boot: Support specifying UART port on Ingenic SoCs
...
Linus Torvalds [Thu, 1 Jul 2021 23:57:14 +0000 (16:57 -0700)]
Merge tag 'pinctrl-v5.14-1' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v5.14 kernel. Not so
much going on. No core changes, just drivers.
The most interesting would be that MIPS Ralink is migrating to pin
control and we have some bindings but not yet code for the Apple M1
pin controller.
New drivers:
- Last merge window we created a driver for the Ralink RT2880. We are
now moving the Ralink SoC pin control drivers out of the MIPS
architecture code and into the pin control subsystem. This concerns
RT288X, MT7620, RT305X, RT3883 and MT7621.
- Qualcomm SM6125 SoC pin control driver.
- Qualcomm spmi-gpio support for PM7325.
- Qualcomm spmi-mpp also handles PMI8994 (just a compatible string)
- Mediatek MT8365 SoC pin controller.
- New device HID for the AMD GPIO controller.
Improvements:
- Pin bias config support for a slew of Renesas pin controllers.
- Incremental improvements and non-urgent bug fixes to the Renesas
SoC drivers.
- Implement irq_set_wake on the AMD pin controller so we can wake up
from external pin events.
Misc:
- Devicetree bindings for the Apple M1 pin controller, we will
probably see a proper driver for this soon as well"
* tag 'pinctrl-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (54 commits)
pinctrl: ralink: rt305x: add missing include
pinctrl: stm32: check for IRQ MUX validity during alloc()
pinctrl: zynqmp: some code cleanups
drivers: qcom: pinctrl: Add pinctrl driver for sm6125
dt-bindings: pinctrl: qcom: sm6125: Document SM6125 pinctrl driver
dt-bindings: pinctrl: mcp23s08: add documentation for reset-gpios
pinctrl: mcp23s08: Add optional reset GPIO
pinctrl: mediatek: fix mode encoding
pinctrl: mcp23s08: Fix missing unlock on error in mcp23s08_irq()
pinctrl: bcm: Constify static pinmux_ops
pinctrl: bcm: Constify static pinctrl_ops
pinctrl: ralink: move RT288X SoC pinmux config into a new 'pinctrl-rt288x.c' file
pinctrl: ralink: move MT7620 SoC pinmux config into a new 'pinctrl-mt7620.c' file
pinctrl: ralink: move RT305X SoC pinmux config into a new 'pinctrl-rt305x.c' file
pinctrl: ralink: move RT3883 SoC pinmux config into a new 'pinctrl-rt3883.c' file
pinctrl: ralink: move MT7621 SoC pinmux config into a new 'pinctrl-mt7621.c' file
pinctrl: ralink: move ralink architecture pinmux header into the driver
pinctrl: single: config: enable the pin's input
pinctrl: mtk: Fix mt8365 Kconfig dependency
pinctrl: mcp23s08: fix race condition in irq handler
...
Linus Torvalds [Thu, 1 Jul 2021 21:54:03 +0000 (14:54 -0700)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"This contains a replacement driver for Intel iWarp hardware. This new
driver supports the old ethernet hardware and also newer chips that
can do ROCE.
Other than that, this contains the typical mix of patches:
- Driver updates and cleanups for bnxt_re, cxgb4, mlx4, and mlx5
- Many static checker driven code clean ups, including a wide
refcount_t conversion
- Several series for the hns driver, more HIP09 HW capabilities,
migration to new HW register manipulators, and code cleanups
- Minor fixes and improvements in srp, rts, and cm
- Improvements throughout for sysfs related code to use
DEVICE_ATTR_*, make the ib_port sysfs first-class, and overall use
sysfs APIs properly
- Intel's new irdma driver replacing i40iw
- rxe general clean ups and Memory Window support"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (211 commits)
RDMA/core: Always release restrack object
RDMA/mlx5: Don't access NULL-cleared mpi pointer
RDMA/irdma: Fix potential overflow expression in irdma_prm_get_pbles
RDMA/irdma: Check contents of user-space irdma_mem_reg_req object
RDMA/rxe: Missing unlock on error in get_srq_wqe()
RDMA/cma: Fix rdma_resolve_route() memory leak
RDMA/core/sa_query: Remove unused argument
RDMA/cma: Fix incorrect Packet Lifetime calculation
RDMA/cma: Protect RMW with qp_mutex
RDMA/cma: Remove unnecessary INIT->INIT transition
RDMA/hns: Add window selection field of congestion control
RDMA/hfi1: Remove use of kmap()
RDMA/irdma: Remove use of kmap()
RDMA/bnxt_re: Fix uninitialized struct bit field rsvd1
IB/isert: Align target max I/O size to initiator size
RDMA/hns: Fix incorrect vlan enable bit in QPC
MAINTAINERS: Update Broadcom RDMA maintainers
RDMA/irdma: Use the queried port attributes
RDMA/rxe: Fix redundant skb_put_zero
RDMA/rxe: Fix extra copy in prepare_ack_packet
...
Linus Torvalds [Thu, 1 Jul 2021 20:26:16 +0000 (13:26 -0700)]
Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This round has a diffstat dominated by Qualcomm clk drivers. Honestly
though that's just a bunch of data so the diffstat reflects that.
Looking beyond that there's just a bunch of updates all around in
various clk drivers. Renesas and NXP (for i.MX) are two SoC vendors
that have a lot of patches in here.
Overall the driver changes look to be mostly enabling more clks and
non-critical fixes that we could hold until the next merge window.
I'm especially excited about the series from Arnd that graduates
clkdev to be the only implementation of clk_get() and clk_put().
That's a good step in the right direction to migreate eveerything over
to the common clk framework. Now we don't have to worry about clkdev
specific details, they're just part of the clk API now.
Core:
- clkdev is now the only option, i.e. clk_get()/clk_put() is
implemented in only one place in the kernel instead of in
drivers/clk/clkdev.c and in architectures that want their own
implementation
New Drivers:
- Texas Instruments' LMK04832 Ultra Low-Noise JESD204B Compliant
Clock Jitter Cleaner With Dual Loop PLLs
- Qualcomm MDM9607 GCC
- Qualcomm SC8180X display clks
- Qualcomm SM6125 GCC
- Qualcomm SM8250 CAMCC (camera)
- Renesas RZ/G2L SoC
- Hisilicon hi3559A SoC
Updates:
- Stop using clock-output-names in ST clk drivers (yay!)
- Support secure mode of STM32MP1 SoCs
- Improve clock support for Actions S500 SoC
- duty cycle setting support on qcom clks
- Add TI am33xx spread spectrum clock support
- Use determine_rate() for the Amlogic pll ops instead of
round_rate()
- Restrict Amlogic gp0/1 and audio plls range on g12a/sm1
- Improve Amlogic axg-audio controller error on deferral
- Add NNA clocks on Amlogic g12a
- Reduce memory footprint of Rockchip PLL rate tables
- A fix for the newly added Rockchip rk3568 clk driver
- Exported clock for the newly added Rockchip video decoder
- Remove audio ipg clock from i.MX8MP
- Remove deprecated legacy clock binding for i.MX SCU clock driver
- Use common clk-imx8qxp for both i.MX8QXP and i.MX8QM
- Add multiple clocks to clk-imx8qxp driver (enet, hdmi, lcdif,
audio, parallel interface)
- Add dedicated clock ops for i.MX paralel interface
- Different fixes for clocks controlled by ATF on i.MX SoCs
- Add A53/A72 frequency scaling support i.MX clk-scu driver
- Add special case for DCSS clock on suspend for i.MX clk-scu driver
- Add parent save/restore on suspend/resume to i.MX clk-scu driver
- Skip runtime PM enablement for CPU clocks in i.MX clk-scu driver
- Remove the sys1_pll/sys2_pll clock gates for i.MX8MQ and their
bindings
- Tegra clk driver no longer deasserts resets on clk_enable as it
gets in the way of certain power-up sequences
- Fix compile testing for Tegra clk driver
- One patch to fix a divider on the Allwinner v3s Audio PLL
- Add support for CPU core clock boost modes on Renesas R-Car Gen3
- Add ISPCS (Image Signal Processor) clocks on Renesas R-Car V3U
- Switch SH/R-Mobile and R-Car "DIV6" clocks to .determine_rate() and
improve support for multiple parents
- Switch Renesas RZ/N1 divider clocks to .determine_rate()
- Add ZA2 (Audio Clock Generator) clock on Renesas R-Car D3
- Convert ar7 to common clk framework
- Convert ralink to common clk framework"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (161 commits)
clk: zynqmp: Handle divider specific read only flag
clk: zynqmp: Use firmware specific mux clock flags
clk: zynqmp: Use firmware specific divider clock flags
clk: zynqmp: Use firmware specific common clock flags
clk: lmk04832: Use of match table
clk: lmk04832: Depend on SPI
clk: stm32mp1: new compatible for secure RCC support
dt-bindings: clock: stm32mp1 new compatible for secure rcc
dt-bindings: reset: add MCU HOLD BOOT ID for SCMI reset domains on stm32mp15
dt-bindings: reset: add IDs for SCMI reset domains on stm32mp15
dt-bindings: clock: add IDs for SCMI clocks on stm32mp15
reset: stm32mp1: remove stm32mp1 reset
clk: hisilicon: Add clock driver for hi3559A SoC
dt-bindings: Document the hi3559a clock bindings
clk: si5341: Add sysfs properties to allow checking/resetting device faults
clk: si5341: Add silabs,iovdd-33 property
clk: si5341: Add silabs,xaxb-ext-clk property
clk: si5341: Allow different output VDD_SEL values
clk: si5341: Update initialization magic
clk: si5341: Check for input clock presence and PLL lock on startup
...
Linus Torvalds [Thu, 1 Jul 2021 19:53:43 +0000 (12:53 -0700)]
Merge tag 'drm-next-2021-07-01' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"Highlights:
- AMD enables two more GPUs, with resulting header files
- i915 has started to move to TTM for discrete GPU and enable DG1
discrete GPU support (not by default yet)
- new HyperV drm driver
- vmwgfx adds arm64 support
- TTM refactoring ongoing
- 16bpc display support for AMD hw
Otherwise it's just the usual insane amounts of work all over the
place in lots of drivers and the core, as mostly summarised below:
Core:
- mark AGP ioctls as legacy
- disable force probing for non-master clients
- HDR metadata property helpers
- HDMI infoframe signal colorimetry support
- remove drm_device.pdev pointer
- remove DRM_KMS_FB_HELPER config option
- remove drm_pci_alloc/free
- drm_err_*/drm_dbg_* helpers
- use drm driver names for fbdev
- leaked DMA handle fix
- 16bpc fixed point format fourcc
- add prefetching memcpy for WC
- Documentation fixes
aperture:
- add aperture ownership helpers
dp:
- aux fixes
- downstream 0 port handling
- use extended base receiver capability DPCD
- Rename DP_PSR_SELECTIVE_UPDATE to better mach eDP spec
- mst: use khz as link rate during init
- VCPI fixes for StarTech hub
ttm:
- provide tt_shrink file via debugfs
- warn about freeing pinned BOs
- fix swapping error handling
- move page alignment into BO
- cleanup ttm_agp_backend
- add ttm_sys_manager
- don't override vm_ops
- ttm_bo_mmap removed
- make ttm_resource base of all managers
- remove VM_MIXEDMAP usage
panel:
- sysfs_emit support
- simple: runtime PM support
- simple: power up panel when reading EDID + caching
bridge:
- MHDP8546: HDCP support + DT bindings
- MHDP8546: Register DP AUX channel with userspace
- TI SN65DSI83 + SN65DSI84: add driver
- Sil8620: Fix module dependencies
- dw-hdmi: make CEC driver loading optional
- Ti-sn65dsi86: refclk fixes, subdrivers, runtime pm
- It66121: Add driver + DT bindings
- Adv7511: Support I2S IEC958 encoding
- Anx7625: fix power-on delay
- Nwi-dsi: Modesetting fixes; Cleanups
- lt6911: add missing MODULE_DEVICE_TABLE
- cdns: fix PM reference leak
hyperv:
- add new DRM driver for HyperV graphics
efifb:
- non-PCI device handling fixes
i915:
- refactor IP/device versioning
- XeLPD Display IP preperation work
- ADL-P enablement patches
- DG1 uAPI behind BROKEN
- disable mmap ioctl for discerte GPUs
- start enabling HuC loading for Gen12+
- major GuC backend rework for new platforms
- initial TTM support for Discrete GPUs
- locking rework for TTM prep
- use correct max source link rate for eDP
- %p4cc format printing
- GLK display fixes
- VLV DSI panel power fixes
- PSR2 disabled for RKL and ADL-S
- ACPI _DSM invalid access fixed
- DMC FW path abstraction
- ADL-S PCI ID update
- uAPI headers converted to kerneldoc
- initial LMEM support for DG1
- x86/gpu: add Jasperlake to gen11 early quirks
amdgpu:
- Aldebaran updates + initial SR-IOV
- new GPU: Beige Goby and Yellow Carp support
- more LTTPR display work
- Vangogh updates
- SDMA 5.x GCR fixes
- PCIe ASPM support
- Renoir TMZ enablement
- initial multiple eDP panel support
- use fdinfo to track devices/process info
- pin/unpin TTM fixes
- free resource on fence usage query
- fix fence calculation
- fix hotunplug/suspend issues
- GC/MM register access macro cleanup for SR-IOV
- W=1 fixes
- ACPI ATCS/ATIF handling rework
- 16bpc fixed point format support
- Initial smartshift support
- RV/PCO power tuning fixes
- new INFO query for additional vbios info
amdkfd:
- SR-IOV aldebaran support
- HMM SVM support
radeon:
- SMU regression fixes
- Oland flickering fix
vmwgfx:
- enable console with fbdev emulation
- fix cpu updates of coherent multisample surfaces
- remove reservation semaphore
- add initial SVGA3 support
- support arm64
msm:
- devcoredump support for display errors
- dpu/dsi: yaml bindings conversion
- mdp5: alpha/blend_mode/zpos support
- a6xx: cached coherent buffer support
- gpu iova fault improvement
- a660 support
rockchip:
- RK3036 win1 scaling support
- RK3066/3188 missing register support
- RK3036/3066/3126/3188 alpha support
mediatek:
- MT8167 HDMI support
- MT8183 DPI dual edge support
tegra:
- fixed YUV support/scaling on Tegra186+
ast:
- use pcim_iomap
- fix DP501 EDID
bochs:
- screen blanking support
etnaviv:
- export more GPU ID values to userspace
- add HWDB entry for GPU on i.MX8MP
- rework linear window calcs
exynos:
- pm runtime changes
imx:
- Annotate dma_fence critical section
- fix PRG modifiers after drmm conversion
- Add 8 pixel alignment fix for 1366x768
- fix YUV advertising
- add color properties
ingenic:
- IPU planes fix
panfrost:
- Mediatek MT8183 support + DT bindings
- export AFBC_FEATURES register to userspace
simpledrm:
- %pr for printing resources
nouveau:
- pin/unpin TTM fixes
qxl:
- unpin shadow BO
virtio:
- create dumb BOs as guest blob
vkms:
- drmm_universal_plane_alloc
- add XRGB plane composition
- overlay support"
* tag 'drm-next-2021-07-01' of git://anongit.freedesktop.org/drm/drm: (1570 commits)
drm/i915: Reinstate the mmap ioctl for some platforms
drm/i915/dsc: abstract helpers to get bigjoiner primary/secondary crtc
Revert "drm/msm/mdp5: provide dynamic bandwidth management"
drm/msm/mdp5: provide dynamic bandwidth management
drm/msm/mdp5: add perf blocks for holding fudge factors
drm/msm/mdp5: switch to standard zpos property
drm/msm/mdp5: add support for alpha/blend_mode properties
drm/msm/mdp5: use drm_plane_state for pixel blend mode
drm/msm/mdp5: use drm_plane_state for storing alpha value
drm/msm/mdp5: use drm atomic helpers to handle base drm plane state
drm/msm/dsi: do not enable PHYs when called for the slave DSI interface
drm/msm: Add debugfs to trigger shrinker
drm/msm/dpu: Avoid ABBA deadlock between IRQ modules
drm/msm: devcoredump iommu fault support
iommu/arm-smmu-qcom: Add stall support
drm/msm: Improve the a6xx page fault handler
iommu/arm-smmu-qcom: Add an adreno-smmu-priv callback to get pagefault info
iommu/arm-smmu: Add support for driver IOMMU fault handlers
drm/msm: export hangcheck_period in debugfs
drm/msm/a6xx: add support for Adreno 660 GPU
...
Linus Torvalds [Thu, 1 Jul 2021 19:16:24 +0000 (12:16 -0700)]
Merge tag 'for-5.14/io_uring-2021-06-30' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
- Multi-queue iopoll improvement (Fam)
- Allow configurable io-wq CPU masks (me)
- renameat/linkat tightening (me)
- poll re-arm improvement (Olivier)
- SQPOLL race fix (Olivier)
- Cancelation unification (Pavel)
- SQPOLL cleanups (Pavel)
- Enable file backed buffers for shmem/memfd (Pavel)
- A ton of cleanups and performance improvements (Pavel)
- Followup and misc fixes (Colin, Fam, Hao, Olivier)
* tag 'for-5.14/io_uring-2021-06-30' of git://git.kernel.dk/linux-block: (83 commits)
io_uring: code clean for kiocb_done()
io_uring: spin in iopoll() only when reqs are in a single queue
io_uring: pre-initialise some of req fields
io_uring: refactor io_submit_flush_completions
io_uring: optimise hot path restricted checks
io_uring: remove not needed PF_EXITING check
io_uring: mainstream sqpoll task_work running
io_uring: refactor io_arm_poll_handler()
io_uring: reduce latency by reissueing the operation
io_uring: add IOPOLL and reserved field checks to IORING_OP_UNLINKAT
io_uring: add IOPOLL and reserved field checks to IORING_OP_RENAMEAT
io_uring: refactor io_openat2()
io_uring: simplify struct io_uring_sqe layout
io_uring: update sqe layout build checks
io_uring: fix code style problems
io_uring: refactor io_sq_thread()
io_uring: don't change sqpoll creds if not needed
io_uring: Create define to modify a SQPOLL parameter
io_uring: Fix race condition when sqp thread goes to sleep
io_uring: improve in tctx_task_work() resubmission
...
Riccardo Mancini [Thu, 24 Jun 2021 23:19:25 +0000 (01:19 +0200)]
perf session: Add missing evlist__delete when deleting a session
ASan reports a memory leak caused by evlist not being deleted on exit in
perf-report, perf-script and perf-data.
The problem is caused by evlist->session not being deleted, which is
allocated in perf_session__read_header, called in perf_session__new if
perf_data is in read mode.
In case of write mode, the session->evlist is filled by the caller.
This patch solves the problem by calling evlist__delete in
perf_session__delete if perf_data is in read mode.
Changes in v2:
- call evlist__delete from within perf_session__delete
v1: https://lore.kernel.org/lkml/
20210621234317.235545-1-rickyman7@gmail.com/
ASan report follows:
$ ./perf script report flamegraph
=================================================================
==227640==ERROR: LeakSanitizer: detected memory leaks
<SNIP unrelated>
Indirect leak of 2704 byte(s) in 1 object(s) allocated from:
#0 0x4f4137 in calloc (/home/user/linux/tools/perf/perf+0x4f4137)
#1 0xbe3d56 in zalloc /home/user/linux/tools/lib/perf/../../lib/zalloc.c:8:9
#2 0x7f999e in evlist__new /home/user/linux/tools/perf/util/evlist.c:77:26
#3 0x8ad938 in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3797:20
#4 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6
#5 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10
#6 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12
#7 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11
#8 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8
#9 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2
#10 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3
#11 0x7f5260654b74 (/lib64/libc.so.6+0x27b74)
Indirect leak of 568 byte(s) in 1 object(s) allocated from:
#0 0x4f4137 in calloc (/home/user/linux/tools/perf/perf+0x4f4137)
#1 0xbe3d56 in zalloc /home/user/linux/tools/lib/perf/../../lib/zalloc.c:8:9
#2 0x80ce88 in evsel__new_idx /home/user/linux/tools/perf/util/evsel.c:268:24
#3 0x8aed93 in evsel__new /home/user/linux/tools/perf/util/evsel.h:210:9
#4 0x8ae07e in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3853:11
#5 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6
#6 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10
#7 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12
#8 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11
#9 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8
#10 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2
#11 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3
#12 0x7f5260654b74 (/lib64/libc.so.6+0x27b74)
Indirect leak of 264 byte(s) in 1 object(s) allocated from:
#0 0x4f4137 in calloc (/home/user/linux/tools/perf/perf+0x4f4137)
#1 0xbe3d56 in zalloc /home/user/linux/tools/lib/perf/../../lib/zalloc.c:8:9
#2 0xbe3e70 in xyarray__new /home/user/linux/tools/lib/perf/xyarray.c:10:23
#3 0xbd7754 in perf_evsel__alloc_id /home/user/linux/tools/lib/perf/evsel.c:361:21
#4 0x8ae201 in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3871:7
#5 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6
#6 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10
#7 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12
#8 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11
#9 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8
#10 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2
#11 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3
#12 0x7f5260654b74 (/lib64/libc.so.6+0x27b74)
Indirect leak of 32 byte(s) in 1 object(s) allocated from:
#0 0x4f4137 in calloc (/home/user/linux/tools/perf/perf+0x4f4137)
#1 0xbe3d56 in zalloc /home/user/linux/tools/lib/perf/../../lib/zalloc.c:8:9
#2 0xbd77e0 in perf_evsel__alloc_id /home/user/linux/tools/lib/perf/evsel.c:365:14
#3 0x8ae201 in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3871:7
#4 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6
#5 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10
#6 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12
#7 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11
#8 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8
#9 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2
#10 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3
#11 0x7f5260654b74 (/lib64/libc.so.6+0x27b74)
Indirect leak of 7 byte(s) in 1 object(s) allocated from:
#0 0x4b8207 in strdup (/home/user/linux/tools/perf/perf+0x4b8207)
#1 0x8b4459 in evlist__set_event_name /home/user/linux/tools/perf/util/header.c:2292:16
#2 0x89d862 in process_event_desc /home/user/linux/tools/perf/util/header.c:2313:3
#3 0x8af319 in perf_file_section__process /home/user/linux/tools/perf/util/header.c:3651:9
#4 0x8aa6e9 in perf_header__process_sections /home/user/linux/tools/perf/util/header.c:3427:9
#5 0x8ae3e7 in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3886:2
#6 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6
#7 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10
#8 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12
#9 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11
#10 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8
#11 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2
#12 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3
#13 0x7f5260654b74 (/lib64/libc.so.6+0x27b74)
SUMMARY: AddressSanitizer: 3728 byte(s) leaked in 7 allocation(s).
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210624231926.212208-1-rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Riccardo Mancini [Thu, 24 Jun 2021 22:34:22 +0000 (00:34 +0200)]
perf annotate: Allow 's' on source code lines
In perf annotate, when 's' is pressed on a line containing source code,
it shows the message "Only available for assembly lines".
This patch gets rid of the error, moving the cursr to the next available
asm line (or the closest previous one if no asm line is found moving
forwards), before hiding source code lines.
Changes in v2:
- handle case of no asm line found in
annotate_browser__find_next_asm_line by returning NULL and
handling error in caller.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210624223423.189550-1-rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:18 +0000 (16:18 +0300)]
perf dlfilter: Add object_code() to perf_dlfilter_fns
Add a function, for use by dlfilters, to read object code.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-11-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:17 +0000 (16:18 +0300)]
perf dlfilter: Add attr() to perf_dlfilter_fns
Add a function, for use by dlfilters, to return the perf_event_attr
structure.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-10-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:16 +0000 (16:18 +0300)]
perf dlfilter: Add srcline() to perf_dlfilter_fns
Add a function, for use by dlfilters, to return source code file name and
line number.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-9-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:15 +0000 (16:18 +0300)]
perf dlfilter: Add insn() to perf_dlfilter_fns
Add a function, for use by dlfilters, to return instruction bytes.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:14 +0000 (16:18 +0300)]
perf dlfilter: Add resolve_address() to perf_dlfilter_fns
Add a function, for use by dlfilters, to resolve addresses from branch
stacks or callchains.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:13 +0000 (16:18 +0300)]
perf build: Install perf_dlfilter.h
Users of the --dlfilter option need to include perf_dlfilter.h
in their filters. Install it to the include path.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:12 +0000 (16:18 +0300)]
perf script: Add option to pass arguments to dlfilters
Add option --dlarg to pass arguments to dlfilters. The --dlarg option can
be repeated to pass more than 1 argument.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:11 +0000 (16:18 +0300)]
perf script: Add option to list dlfilters
Add option --list-dlfilters to list dlfilters in the current directory or
the exec-path e.g. ~/libexec/perf-core/dlfilters. Use with option -v (must
come before option --list-dlfilters) to show long descriptions.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:10 +0000 (16:18 +0300)]
perf script: Add dlfilter__filter_event_early()
filter_event_early() can be more than 30% faster than filter_event()
because it is called before internal filtering. In other respects it
is the same as filter_event(), except that it will be passed events
that have yet to be filtered out.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Adrian Hunter [Sun, 27 Jun 2021 13:18:09 +0000 (16:18 +0300)]
perf script: Add API for filtering via dynamically loaded shared object
In some cases, users want to filter very large amounts of data (e.g.
from AUX area tracing like Intel PT) looking for something specific.
While scripting such as Python can be used, Python is 10 to 20 times
slower than C. So define a C API so that custom filters can be written
and loaded.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210627131818.810-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Thu, 1 Jul 2021 17:20:58 +0000 (14:20 -0300)]
perf llvm: Return -ENOMEM when asprintf() fails
Zhihao sent a patch but it made llvm__compile_bpf() return what
asprintf() returns on error, which is just -1, but since this function
returns -errno, fix it by returning -ENOMEM for this case instead.
Fixes:
cb76371441d098 ("perf llvm: Allow passing options to llc ...")
Fixes:
5eab5a7ee032ac ("perf llvm: Display eBPF compiling command ...")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: Zhihao Cheng <chengzhihao1@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Yu Kuai <yukuai3@huawei.com>
Cc: clang-built-linux@googlegroups.com
Link: http://lore.kernel.org/lkml/20210609115945.2193194-1-chengzhihao1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
James Clark [Wed, 9 Jun 2021 13:04:20 +0000 (16:04 +0300)]
perf cs-etm: Delay decode of non-timeless data until cs_etm__flush_events()
Currently, timeless mode starts the decode on PERF_RECORD_EXIT, and
non-timeless mode starts decoding on the fist PERF_RECORD_AUX record.
This can cause the "data has no samples!" error if the first
PERF_RECORD_AUX record comes before the first (or any relevant)
PERF_RECORD_MMAP2 record because the mmaps are required by the decoder
to access the binary data.
This change pushes the start of non-timeless decoding to the very end of
parsing the file. The PERF_RECORD_EXIT event can't be used because it
might not exist in system-wide or snapshot modes.
I have not been able to find the exact cause for the events to be
intermittently in the wrong order in the basic scenario:
perf record -e cs_etm/@tmc_etr0/u top
But it can be made to happen every time with the --delay option. This is
because "enable_on_exec" is disabled, which causes tracing to start
before the process to be launched is exec'd. For example:
perf record -e cs_etm/@tmc_etr0/u --delay=1 top
perf report -D | grep 'AUX\|MAP'
0
16714475632740 0x520 [0x40]: PERF_RECORD_AUX offset: 0 size: 0x30 flags: 0 []
0
16714476494960 0x5d0 [0x40]: PERF_RECORD_AUX offset: 0x30 size: 0x30 flags: 0 []
0
16714478208900 0x660 [0x40]: PERF_RECORD_AUX offset: 0x60 size: 0x30 flags: 0 []
4294967295 16714478293340 0x700 [0x70]: PERF_RECORD_MMAP2 8712/8712: [0x557a460000(0x54000) @ 0 00:17 5329258 0]: r-xp /usr/bin/top
4294967295 16714478353020 0x770 [0x88]: PERF_RECORD_MMAP2 8712/8712: [0x7f86f72000(0x34000) @ 0 00:17 5214354 0]: r-xp /usr/lib/aarch64-linux-gnu/ld-2.31.so
Another scenario in which decoding from the first aux record fails is a
workload that forks. Although the aux record comes after 'bash', it
comes before 'top', which is what we are interested in. For example:
perf record -e cs_etm/@tmc_etr0/u -- bash -c top
perf report -D | grep 'AUX\|MAP'
4294967295 16853946421300 0x510 [0x70]: PERF_RECORD_MMAP2 8723/8723: [0x558f280000(0x142000) @ 0 00:17 5213953 0]: r-xp /usr/bin/bash
4294967295 16853946543560 0x580 [0x88]: PERF_RECORD_MMAP2 8723/8723: [0x7fbba6e000(0x34000) @ 0 00:17 5214354 0]: r-xp /usr/lib/aarch64-linux-gnu/ld-2.31.so
4294967295 16853946628420 0x608 [0x68]: PERF_RECORD_MMAP2 8723/8723: [0x7fbba9e000(0x1000) @ 0 00:00 0 0]: r-xp [vdso]
0
16853947067300 0x690 [0x40]: PERF_RECORD_AUX offset: 0 size: 0x3a60 flags: 0 []
...
0
16853966602580 0x1758 [0x40]: PERF_RECORD_AUX offset: 0xc2470 size: 0x30 flags: 0 []
4294967295 16853967119860 0x1818 [0x70]: PERF_RECORD_MMAP2 8723/8723: [0x5559e70000(0x54000) @ 0 00:17 5329258 0]: r-xp /usr/bin/top
4294967295 16853967181620 0x1888 [0x88]: PERF_RECORD_MMAP2 8723/8723: [0x7f9ed06000(0x34000) @ 0 00:17 5214354 0]: r-xp /usr/lib/aarch64-linux-gnu/ld-2.31.so
4294967295 16853967237180 0x1910 [0x68]: PERF_RECORD_MMAP2 8723/8723: [0x7f9ed36000(0x1000) @ 0 00:00 0 0]: r-xp [vdso]
A third scenario is when the majority of time is spent in a shared
library that is not loaded at startup. For example a dynamically loaded
plugin.
Testing
=======
Testing was done by checking if any samples that are present in the
old output are missing from the new output. Timestamps must be
stripped out with awk because now they are set to the last AUX sample,
rather than the first:
./perf script $4 | awk '!($4="")' > new.script
./perf-default script $4 | awk '!($4="")' > default.script
comm -13 <(sort -u new.script) <(sort -u default.script)
Testing showed that the new output is a superset of the old. When lines
appear in the comm output, it is not because they are missing but
because [unknown] is now resolved to sensible locations. For example
last putp branch here now resolves to libtinfo, so it's not missing
from the output, but is actually improved:
Old:
top 305 [001] 1 branches:uH: 402830 _init+0x30 (/usr/bin/top.procps) => 404a1c [unknown] (/usr/bin/top.procps)
top 305 [001] 1 branches:uH: 404a20 [unknown] (/usr/bin/top.procps) => 402970 putp@plt+0x0 (/usr/bin/top.procps)
top 305 [001] 1 branches:uH: 40297c putp@plt+0xc (/usr/bin/top.procps) => 0 [unknown] ([unknown])
New:
top 305 [001] 1 branches:uH: 402830 _init+0x30 (/usr/bin/top.procps) => 404a1c [unknown] (/usr/bin/top.procps)
top 305 [001] 1 branches:uH: 404a20 [unknown] (/usr/bin/top.procps) => 402970 putp@plt+0x0 (/usr/bin/top.procps)
top 305 [001] 1 branches:uH: 40297c putp@plt+0xc (/usr/bin/top.procps) =>
7f8ab39208 putp+0x0 (/lib/libtinfo.so.5.9)
In the following two modes, decoding now works and the "data has no
samples!" error is not displayed any more:
perf record -e cs_etm/@tmc_etr0/u -- bash -c top
perf record -e cs_etm/@tmc_etr0/u --delay=1 top
In snapshot mode, there is also an improvement to decoding. Previously
samples for the 'kill' process that was used to send SIGUSR2 were
completely missing, because the process hadn't started yet. But now
there are additional samples present:
perf record -e cs_etm/@tmc_etr0/u --snapshot -a
perf script
stress 19380 [003] 161627.938153: 1000000 instructions:uH:
aaaabb612fb4 [unknown] (/usr/bin/stress)
kill 19644 [000] 161627.938153: 1000000 instructions:uH:
ffffae0ef210 [unknown] (/lib/aarch64-linux-gnu/ld-2.27.so)
stress 19380 [003] 161627.938153: 1000000 instructions:uH:
ffff9e754d40 random_r+0x20 (/lib/aarch64-linux-gnu/libc-2.27.so)
Also tested was the round trip of 'perf inject' followed by 'perf
report' which has the same differences and improvements.
Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Al Grant <al.grant@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Branislav Rankov <branislav.rankov@arm.com>
Cc: Denis Nikitin <denik@chromium.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20210609130421.13934-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 23:04:45 +0000 (20:04 -0300)]
tools headers UAPI: Synch KVM's svm.h header with the kernel
To pick up the changes from:
59d21d67f37481cf ("KVM: SVM: Software reserved fields")
Picking the new SVM_EXIT_SW exit reasons.
Addressing this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h'
diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Vineeth Pillai <viremana@linux.microsoft.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 15:53:44 +0000 (12:53 -0300)]
tools kvm headers arm64: Update KVM headers from the kernel sources
To pick the changes from:
f0376edb1ddcab19 ("KVM: arm64: Add ioctl to fetch/store tags in a guest")
That don't causes any changes in tooling (when built on x86), only
addresses this perf build warning:
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
Cc: Marc Zyngier <maz@kernel.org>
Cc: Steven Price <steven.price@arm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Sun, 9 May 2021 12:39:02 +0000 (09:39 -0300)]
tools headers UAPI: Sync linux/kvm.h with the kernel sources
To pick the changes in:
19238e75bd8ed8ff ("kvm: x86: Allow userspace to handle emulation errors")
cb082bfab59a224a ("KVM: stats: Add fd-based API to read binary stats data")
b87cc116c7e1bc62 ("KVM: PPC: Book3S HV: Add KVM_CAP_PPC_RPT_INVALIDATE capability")
f0376edb1ddcab19 ("KVM: arm64: Add ioctl to fetch/store tags in a guest")
0dbb11230437895f ("KVM: X86: Introduce KVM_HC_MAP_GPA_RANGE hypercall")
6dba940352038b56 ("KVM: x86: Introduce KVM_GET_SREGS2 / KVM_SET_SREGS2")
644f706719f0297b ("KVM: x86: hyper-v: Introduce KVM_CAP_HYPERV_ENFORCE_CPUID")
That automatically adds support for these new ioctls:
$ tools/perf/trace/beauty/kvm_ioctl.sh > before
$ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h
$ tools/perf/trace/beauty/kvm_ioctl.sh > after
$ diff -u before after
--- before 2021-07-01 13:42:07.
006387354 -0300
+++ after 2021-07-01 13:45:16.
051649301 -0300
@@ -95,6 +95,9 @@
[0xc9] = "XEN_HVM_SET_ATTR",
[0xca] = "XEN_VCPU_GET_ATTR",
[0xcb] = "XEN_VCPU_SET_ATTR",
+ [0xcc] = "GET_SREGS2",
+ [0xcd] = "SET_SREGS2",
+ [0xce] = "GET_STATS_FD",
[0xe0] = "CREATE_DEVICE",
[0xe1] = "SET_DEVICE_ATTR",
[0xe2] = "GET_DEVICE_ATTR",
$
This silences these perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h'
diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Cc: Aaron Lewis <aaronlewis@google.com>
Cc: Ashish Kalra <ashish.kalra@amd.com>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Jing Zhang <jingzhangos@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Maxim Levitsky <mlevitsk@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Steven Price <steven.price@arm.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Thu, 1 Jul 2021 16:39:15 +0000 (13:39 -0300)]
tools headers cpufeatures: Sync with the kernel sources
To pick the changes from:
1348924ba8169f35 ("x86/msr: Define new bits in TSX_FORCE_ABORT MSR")
cbcddaa33d7e11a0 ("perf/x86/rapl: Use CPUID bit on AMD and Hygon parts")
This only causes these perf files to be rebuilt:
CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o
And addresses this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Thu, 1 Jul 2021 16:34:38 +0000 (13:34 -0300)]
tools include UAPI: Update linux/mount.h copy
To pick the changes from:
dd8b477f9a3d8edb ("mount: Support "nosymfollow" in new mount api")
That ends up adding support for the new MOUNT_ATTR_NOSYMFOLLOW mount
attribute:
$ tools/perf/trace/beauty/fsmount.sh > before
$ cp include/uapi/linux/mount.h tools/include/uapi/linux/mount.h
$ tools/perf/trace/beauty/fsmount.sh > after
$ diff -u before after
--- before 2021-07-01 13:34:04.
542517355 -0300
+++ after 2021-07-01 13:34:12.
423694537 -0300
@@ -7,4 +7,5 @@
[ilog2(0x00000020) + 1] = "STRICTATIME",
[ilog2(0x00000080) + 1] = "NODIRATIME",
[ilog2(0x00100000) + 1] = "IDMAP",
+ [ilog2(0x00200000) + 1] = "NOSYMFOLLOW",
};
$
So now one can use it in --filter expressions for tracepoints.
This silences this perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/linux/mount.h' differs from latest version at 'include/uapi/linux/mount.h'
diff -u tools/include/uapi/linux/mount.h include/uapi/linux/mount.h
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo Carvalho de Melo [Thu, 1 Jul 2021 16:32:18 +0000 (13:32 -0300)]
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes from these csets:
1348924ba8169f35 ("x86/msr: Define new bits in TSX_FORCE_ABORT MSR")
That cause no changes to tooling:
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
$ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
$ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
$ diff -u before after
$
Just silences this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
Cc: Borislav Petkov <bp@suse.de>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Leo Yan [Wed, 19 May 2021 07:19:39 +0000 (15:19 +0800)]
perf arm-spe: Don't wait for PERF_RECORD_EXIT event
When decode Arm SPE trace, it waits for PERF_RECORD_EXIT event (the last
perf event) for processing trace data, which is needless and even might
cause logic error, e.g. it might fail to correlate perf events with Arm
SPE events correctly.
So this patch removes the condition checking for PERF_RECORD_EXIT event.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: James Clark <james.clark@arm.com>
Tested-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210519071939.1598923-6-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Leo Yan [Wed, 19 May 2021 07:19:38 +0000 (15:19 +0800)]
perf arm-spe: Bail out if the trace is later than perf event
It's possible that record in Arm SPE trace is later than perf event and
vice versa. This asks to correlate the perf events and Arm SPE
synthesized events to be processed in the manner of correct timing.
To achieve the time ordering, this patch reverses the flow, it firstly
calls arm_spe_sample() and then calls arm_spe_decode(). By comparing
the timestamp value and detect the perf event is coming earlier than Arm
SPE trace data, it bails out from the decoding loop, the last record is
pushed into auxtrace stack and is deferred to generate sample. To track
the timestamp, everytime it updates timestamp for the latest record.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: James Clark <james.clark@arm.com>
Tested-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20210519071939.1598923-5-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Leo Yan [Wed, 19 May 2021 07:19:37 +0000 (15:19 +0800)]
perf arm-spe: Assign kernel time to synthesized event
In current code, it assigns the arch timer counter to the synthesized
samples Arm SPE trace, thus the samples don't contain the kernel time
but only contain the raw counter value.
To fix the issue, this patch converts the timer counter to kernel time
and assigns it to sample timestamp.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: James Clark <james.clark@arm.com>
Tested-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20210519071939.1598923-4-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Leo Yan [Wed, 19 May 2021 07:19:36 +0000 (15:19 +0800)]
perf arm-spe: Convert event kernel time to counter value
When handle a perf event, Arm SPE decoder needs to decide if this perf
event is earlier or later than the samples from Arm SPE trace data; to
do comparision, it needs to use the same unit for the time.
This patch converts the event kernel time to arch timer's counter value,
thus it can be used to compare with counter value contained in Arm SPE
Timestamp packet.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: James Clark <james.clark@arm.com>
Tested-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20210519071939.1598923-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Leo Yan [Wed, 19 May 2021 07:19:35 +0000 (15:19 +0800)]
perf arm-spe: Save clock parameters from TIME_CONV event
During the recording phase, "perf record" tool synthesizes event
PERF_RECORD_TIME_CONV for the hardware clock parameters and saves the
event into the data file.
Afterwards, when processing the data file, the event TIME_CONV will be
processed at the very early time and is stored into session context.
This patch extracts these parameters from the session context and saves
into the structure "spe->tc" with the type perf_tsc_conversion, so that
the parameters are ready for conversion between clock counter and time
stamp.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: James Clark <james.clark@arm.com>
Tested-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20210519071939.1598923-2-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>