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The list_kref reaches a count of 0 when all the static OPPs are removed,
for example when dev_pm_opp_of_cpumask_remove_table() is called, though
the actual OPP table may not get freed as it may still be referenced by
other parts of the kernel, like from a call to
dev_pm_opp_set_supported_hw(). And if we call
dev_pm_opp_of_cpumask_add_table() again at this point, we must
reinitialize the list_kref otherwise the kernel will hit a WARN() in
kref infrastructure for incrementing a kref with value 0.
Fixes: 11e1a1648298 ("opp: Don't decrement uninitialized list_kref")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
If the "virtualize APIC accesses" VM-execution control is set in the
VMCS, the APIC virtualization hardware is triggered when a page walk
in VMX non-root mode terminates at a PTE wherein the address of the 4k
page frame matches the APIC-access address specified in the VMCS. On
hardware, the APIC-access address may be any valid 4k-aligned physical
address.
KVM's nVMX implementation enforces the additional constraint that the
APIC-access address specified in the vmcs12 must be backed by
a "struct page" in L1. If not, L0 will simply clear the "virtualize
APIC accesses" VM-execution control in the vmcs02.
The problem with this approach is that the L1 guest has arranged the
vmcs12 EPT tables--or shadow page tables, if the "enable EPT"
VM-execution control is clear in the vmcs12--so that the L2 guest
physical address(es)--or L2 guest linear address(es)--that reference
the L2 APIC map to the APIC-access address specified in the
vmcs12. Without the "virtualize APIC accesses" VM-execution control in
the vmcs02, the APIC accesses in the L2 guest will directly access the
APIC-access page in L1.
When there is no mapping whatsoever for the APIC-access address in L1,
the L2 VM just loses the intended APIC virtualization. However, when
the APIC-access address is mapped to an MMIO region in L1, the L2
guest gets direct access to the L1 MMIO device. For example, if the
APIC-access address specified in the vmcs12 is 0xfee00000, then L2
gets direct access to L1's APIC.
Since this vmcs12 configuration is something that KVM cannot
faithfully emulate, the appropriate response is to exit to userspace
with KVM_INTERNAL_ERROR_EMULATION.
Fixes: fe3ef05c7572 ("KVM: nVMX: Prepare vmcs02 from vmcs01 and vmcs12")
Reported-by: Dan Cross <dcross@google.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Guest physical APIC ID may not equal to vcpu->vcpu_id in some case.
We may set the wrong physical id in avic_handle_ldr_update as we
always use vcpu->vcpu_id. Get physical APIC ID from vAPIC page
instead.
Export and use kvm_xapic_id here and in avic_handle_apic_id_update
as suggested by Vitaly.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Scheduled policy update work may end up racing with the freeing of the
policy and unregistering the driver.
One possible race is as below, where the cpufreq_driver is unregistered,
but the scheduled work gets executed at later stage when, cpufreq_driver
is NULL (i.e. after freeing the policy and driver).
Unable to handle kernel NULL pointer dereference at virtual address 0000001c
pgd = (ptrval)
[0000001c] *pgd=80000080204003, *pmd=00000000
Internal error: Oops: 206 [#1] SMP THUMB2
Modules linked in:
CPU: 0 PID: 34 Comm: kworker/0:1 Not tainted 5.4.0-rc3-00006-g67f5a8081a4b #86
Hardware name: ARM-Versatile Express
Workqueue: events handle_update
PC is at cpufreq_set_policy+0x58/0x228
LR is at dev_pm_qos_read_value+0x77/0xac
Control: 70c5387d Table: 80203000 DAC: fffffffd
Process kworker/0:1 (pid: 34, stack limit = 0x(ptrval))
(cpufreq_set_policy) from (refresh_frequency_limits.part.24+0x37/0x48)
(refresh_frequency_limits.part.24) from (handle_update+0x2f/0x38)
(handle_update) from (process_one_work+0x16d/0x3cc)
(process_one_work) from (worker_thread+0xff/0x414)
(worker_thread) from (kthread+0xff/0x100)
(kthread) from (ret_from_fork+0x11/0x28)
Fixes: 67d874c3b2c6 ("cpufreq: Register notifiers with the PM QoS framework")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
[ rjw: Cancel the work before dropping the QoS requests ]
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit "bpf: Process in-kernel BTF" in linux-next introduced an undefined
__weak symbol, which results in an R_390_GLOB_DAT relocation type. That
is not yet handled by the KASLR relocation code, and the kernel stops with
the message "Unknown relocation type".
Add code to detect and handle R_390_GLOB_DAT relocation types and undefined
symbols.
Fixes: 805bc0bc238f ("s390/kernel: build a relocatable kernel")
Cc: <stable@vger.kernel.org> # v5.2+
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
If a process is interrupted while accessing the crypto device and the
global ap_perms_mutex is contented, release() could return early and
fail to free related resources.
Fixes: 00fab2350e6b ("s390/zcrypt: multiple zcrypt device nodes support")
Cc: <stable@vger.kernel.org> # 4.19
Cc: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
The recently introduced USB-audio descriptor validator had a stupid
copy&paste error that may lead to an unexpected overlook of too short
descriptors for processing and extension units. It's likely the cause
of the report triggered by syzkaller fuzzer. Let's fix it.
Fixes: 57f8770620e9 ("ALSA: usb-audio: More validations of descriptor units")
Reported-by: syzbot+0620f79a1978b1133fd7@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/s5hsgnkdbsl.wl-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Commit:
8a58ddae2379 ("perf/core: Fix exclusive events' grouping")
allows CAP_EXCLUSIVE events to be grouped with other events. Since all
of those also happen to be AUX events (which is not the case the other
way around, because arch/s390), this changes the rules for stopping the
output: the AUX event may not be on its PMU's context any more, if it's
grouped with a HW event, in which case it will be on that HW event's
context instead. If that's the case, munmap() of the AUX buffer can't
find and stop the AUX event, potentially leaving the last reference with
the atomic context, which will then end up freeing the AUX buffer. This
will then trip warnings:
Fix this by using the context's PMU context when looking for events
to stop, instead of the event's PMU context.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20191022073940.61814-1-alexander.shishkin@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Set gain in hx711_reset() to its default value after a reset cycle. This
omits one precautionary read cycle, because the read is performed in
hx711_set_gain_for_channel() anyway if gain has changed.
Check for DOUT low and if its high wait some time if it goes down
instead of doing a blind reset cycle when DOUT is not down.
This is a performance optimization which allows to query the sensor with
a higher frequency.
Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Fix the following warnings when documentation is built:
drivers/iio/adc/stm32-adc-core.c:62: warning: cannot understand function
prototype: 'struct stm32_adc_common_regs '
drivers/iio/adc/stm32-adc-core.c:78: warning: cannot understand function
prototype: 'struct stm32_adc_priv_cfg '
drivers/iio/adc/stm32-adc-core.c:123: warning: Function parameter or
member 'pdev' not described in 'stm32f4_adc_clk_sel'
drivers/iio/adc/stm32-adc.c:219: warning: cannot understand function
prototype: 'struct stm32_adc_regs '
drivers/iio/adc/stm32-adc.c:237: warning: cannot understand function
prototype: 'struct stm32_adc_regspec '
drivers/iio/adc/stm32-adc.c:264: warning: cannot understand function
prototype: 'struct stm32_adc_cfg '
drivers/iio/adc/stm32-adc.c:323: warning: Function parameter or member
'difsel' not described in 'N'
drivers/iio/adc/stm32-adc.c:323: warning: Function parameter or member
'pcsel' not described in 'stm32_adc'
drivers/iio/adc/stm32-adc.c:371: warning: cannot understand function
prototype: 'const struct stm32_adc_regs stm32f4_sq[STM32_ADC_MAX_SQ + 1]
drivers/iio/adc/stm32-adc.c:417: warning: cannot understand function
prototype: 'const struct stm32_adc_regs stm32f4_smp_bits[] = '
drivers/iio/adc/stm32-adc.c:508: warning: cannot understand function
prototype: 'const struct stm32_adc_regs stm32h7_smp_bits[] = '
drivers/iio/adc/stm32-adc.c:1112: warning: Function parameter or member
'indio_dev' not described in 'stm32_adc_get_trig_extsel'
drivers/iio/adc/stm32-adc.c:1420: warning: Function parameter or member
'indio_dev' not described in 'stm32_adc_debugfs_reg_access'
drivers/iio/adc/stm32-adc.c:1420: warning: Function parameter or member
'reg' not described in 'stm32_adc_debugfs_reg_access'
drivers/iio/adc/stm32-adc.c:1420: warning: Function parameter or member
'writeval' not described in 'stm32_adc_debugfs_reg_access'
drivers/iio/adc/stm32-adc.c:1420: warning: Function parameter or member
'readval' not described in 'stm32_adc_debugfs_reg_access'
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The iio_triggered_buffer_{predisable,postenable} functions attach/detach
the poll functions.
The iio_triggered_buffer_postenable() should be called before (to attach
the poll func) and then the
The iio_triggered_buffer_predisable() function is hooked directly without
anything, which is probably fine, as the postenable() version seems to also
do some reset/wake-up of the device.
This will mean it will be easier when removing it; i.e. it just gets
removed.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
- Fix a bug in the XIVE code which can cause a host crash.
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Merge tag 'kvm-ppc-fixes-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD
PPC KVM fix for 5.4
- Fix a bug in the XIVE code which can cause a host crash.
Special PMU edition:
- Fix cycle counter truncation
- Fix cycle counter overflow limit on pure 64bit system
- Allow chained events to be actually functional
- Correct sample period after overflow
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Merge tag 'kvmarm-fixes-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm fixes for 5.4, take #2
Special PMU edition:
- Fix cycle counter truncation
- Fix cycle counter overflow limit on pure 64bit system
- Allow chained events to be actually functional
- Correct sample period after overflow
After resetting the vCPU, the kvmclock MSR keeps the previous value but it is
not enabled. This can be confusing, so fix it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use BUG_ON instead of a if condition followed by BUG.
Generated by: scripts/coccinelle/misc/bugon.cocci
Fixes: 4b526de50e39 ("KVM: x86: Check kvm_rebooting in kvm_spurious_fault()")
CC: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit bf653b78f960 ("KVM: vmx: Introduce handle_unexpected_vmexit
and handle WAITPKG vmexit") introduced specialized handling of
specific exit-reasons that should not be raised by CPU because
KVM configures VMCS such that they should never be raised.
However, since commit 7396d337cfad ("KVM: x86: Return to userspace
with internal error on unexpected exit reason"), VMX & SVM
exit handlers were modified to generically handle all unexpected
exit-reasons by returning to userspace with internal error.
Therefore, there is no need for specialized handling of specific
unexpected exit-reasons (This specialized handling also introduced
inconsistency for these exit-reasons to silently skip guest instruction
instead of return to userspace on internal-error).
Fixes: bf653b78f960 ("KVM: vmx: Introduce handle_unexpected_vmexit and handle WAITPKG vmexit")
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 204c91eff798a ("KVM: selftests: do not blindly clobber registers in
guest asm") was intended to make test more gcc-proof, however, the result
is exactly the opposite: on newer gccs (e.g. 8.2.1) the test breaks with
==== Test Assertion Failure ====
x86_64/sync_regs_test.c:168: run->s.regs.regs.rbx == 0xBAD1DEA + 1
pid=14170 tid=14170 - Invalid argument
1 0x00000000004015b3: main at sync_regs_test.c:166 (discriminator 6)
2 0x00007f413fb66412: ?? ??:0
3 0x000000000040191d: _start at ??:?
rbx sync regs value incorrect 0x1.
Apparently, compile is still free to play games with registers even
when they have variables attached.
Re-write guest code with 'asm volatile' by embedding ucall there and
making sure rbx is preserved.
Fixes: 204c91eff798a ("KVM: selftests: do not blindly clobber registers in guest asm")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vmx_dirty_log_test fails on AMD and this is no surprise as it is VMX
specific. Bail early when nested VMX is unsupported.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vmx_* tests require VMX and three of them implement the same check. Move it
to vmx library.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vmx_set_nested_state_test() checks if VMX is supported twice: in the very
beginning (and skips the whole test if it's not) and before doing
test_vmx_nested_state(). One should be enough.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Don't waste cycles to shrink/grow vCPU halt_poll_ns if host
side polling is disabled.
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When the RDPID instruction is supported on the host, enumerate it in
KVM_GET_SUPPORTED_CPUID.
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Handle multiple instances of Intel chips without complaining.
- Restore the Intel Strago DMI workaround
- Make the Armada 37xx handle pins over 32
- Fix the polarity of the LED group on Armada 37xx
- Fix an off-by-one bug in the NS2 driver
- Fix error path for iproc's platform_get_irq()
- Fix error path on the STMFX driver
- Fix a typo in the Berlin AS370 driver
- Fix up misc errors in the Aspeed 2600 BMC support
- Fix a stray SPDX tag
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Merge tag 'pinctrl-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Here is a bunch of pin control fixes. I was lagging behind on this
one, some fixes should have come in earlier, sorry about that.
Anyways here it is, pretty straight-forward fixes, the Strago fix
stand out as something serious affecting a lot of machines.
Summary:
- Handle multiple instances of Intel chips without complaining.
- Restore the Intel Strago DMI workaround
- Make the Armada 37xx handle pins over 32
- Fix the polarity of the LED group on Armada 37xx
- Fix an off-by-one bug in the NS2 driver
- Fix error path for iproc's platform_get_irq()
- Fix error path on the STMFX driver
- Fix a typo in the Berlin AS370 driver
- Fix up misc errors in the Aspeed 2600 BMC support
- Fix a stray SPDX tag"
* tag 'pinctrl-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: aspeed-g6: Rename SD3 to EMMC and rework pin groups
pinctrl: aspeed-g6: Fix UART13 group pinmux
pinctrl: aspeed-g6: Make SIG_DESC_CLEAR() behave intuitively
pinctrl: aspeed-g6: Fix I3C3/I3C4 pinmux configuration
pinctrl: aspeed-g6: Fix I2C14 SDA description
pinctrl: aspeed-g6: Sort pins for sanity
dt-bindings: pinctrl: aspeed-g6: Rework SD3 function and groups
pinctrl: berlin: as370: fix a typo s/spififib/spdifib
pinctrl: armada-37xx: swap polarity on LED group
pinctrl: stmfx: fix null pointer on remove
pinctrl: iproc: allow for error from platform_get_irq()
pinctrl: ns2: Fix off by one bugs in ns2_pinmux_enable()
pinctrl: bcm-iproc: Use SPDX header
pinctrl: armada-37xx: fix control of pins 32 and up
pinctrl: cherryview: restore Strago DMI workaround for all versions
pinctrl: intel: Allocate IRQ chip dynamic
Suggestion from coccinelle / coccicheck
CHECK drivers/iio/adc/twl4030-madc.c
drivers/iio/adc/twl4030-madc.c:524:6-15: WARNING: Comparison of 0/1 to bool variable
drivers/iio/adc/twl4030-madc.c:655:1-43: WARNING: Assignment of 0/1 to bool variable
drivers/iio/adc/twl4030-madc.c:659:2-44: WARNING: Assignment of 0/1 to bool variable
drivers/iio/adc/twl4030-madc.c:664:1-43: WARNING: Assignment of 0/1 to bool variable
drivers/iio/adc/twl4030-madc.c:498:2-34: WARNING: Assignment of 0/1 to bool variable
drivers/iio/adc/twl4030-madc.c:510:2-19: WARNING: Assignment of 0/1 to bool variable
drivers/iio/adc/twl4030-madc.c:511:2-11: WARNING: Assignment of 0/1 to bool variable
drivers/iio/adc/twl4030-madc.c:531:2-19: WARNING: Assignment of 0/1 to bool variable
drivers/iio/adc/twl4030-madc.c:532:2-11: WARNING: Assignment of 0/1 to bool variable
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Document the LTC2983 temperature sensor devicetree bindings.
Tweaked by Jonathan to take into account the lack of signed output
being maintained by dtc yaml output. For now a comment added
that the unsigned array should actually be signed.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The LTC2983 is a Multi-Sensor High Accuracy Digital Temperature
Measurement System. It measures a wide variety of temperature sensors and
digitally outputs the result, in °C or °F, with 0.1°C accuracy and
0.001°C resolution. It can measure the temperature of all standard
thermocouples (type B,E,J,K,N,S,R,T), standard 2-,3-,4-wire RTDs,
thermistors and diodes.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
We can drop some duplicate code if we use devm_action for disabling
regulators and pm and the managed variant of iio_device_register().
This allows us to completely remove all remove() callbacks from both
i2c and spi code.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The vddd and vdda supplies are always operated on together. We can
shrink the code a bit by using the bulk regulator helpers.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Currenly haltpoll isn't aware of the 'idle=' override, the priority is
'idle=poll' > haltpoll > 'idle=halt'. When 'idle=poll' is used, cpuidle
driver is bypassed but current_driver in sys still shows 'haltpoll'.
When 'idle=halt' is used, haltpoll takes precedence and makes
'idle=halt' have no effect.
Add a check to prevent the haltpoll driver from loading if 'idle=' is
present.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Co-developed-by: Joao Martins <joao.m.martins@oracle.com>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
We change the locking in this function and forgot to update this error
path so we are accidentally still holding the "dev->lockdep_mutex".
Fixes: 87a30e1f05d7 ("driver-core, libnvdimm: Let device subsystems add local lockdep coverage")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Cc: 5.3+ <stable@vger.kernel.org> # 5.3+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
FXOS8700CQ is a small, low-power, 3-axis linear accelerometer and 3-axis
magnetometer combined into a single package. The device features a
selectable I2C or point-to-point SPI serial interface with 14-bit
accelerometer and 16-bit magnetometer ADC resolution along with
smart-embedded functions.
FXOS8700CQ has dynamically selectable accelerationfull-scale ranges of
±2 g/±4 g/±8 g and a fixed magnetic measurement range of ±1200 μT.
Output data rates (ODR) from 1.563 Hz to 800 Hz are selectable by the user
for each sensor. Interleaved magnetic and acceleration data is available
at ODR rates of up to 400 Hz. FXOS8700CQ is available in a plastic QFN
package and it is guaranteed to operate over the extended temperature
range of –40 °C to +85 °C.
TODO: Trigger and IRQ configuration support
Datasheet:
http://cache.freescale.com/files/sensors/doc/data_sheet/FXOS8700CQ.pdf
Signed-off-by: Robert Jones <rjones@gateworks.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This adds documentation for the Freescale FXOS8700 Inertial Measurement Unit
device-tree bindings.
Signed-off-by: Robert Jones <rjones@gateworks.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The platform detection VMWARE_PORT macro uses the VMWARE_HYPERVISOR_PORT
definition, but expects it to be an integer. However, when it was moved
to the new vmware.h include file, it was changed to be a string to better
fit into the VMWARE_HYPERCALL set of macros. This obviously breaks the
platform detection VMWARE_PORT functionality.
Change the VMWARE_HYPERVISOR_PORT and VMWARE_HYPERVISOR_PORT_HB
definitions to be integers, and use __stringify() for their stringified
form when needed.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: b4dd4f6e3648 ("Add a header file for hypercall definitions")
Link: https://lkml.kernel.org/r/20191021172403.3085-3-thomas_os@shipmail.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
LLVM's assembler doesn't accept the short form INL instruction:
inl (%%dx)
but instead insists on the output register to be explicitly specified.
This was previously fixed for the VMWARE_PORT macro. Fix it also for
the VMWARE_HYPERCALL macro.
Suggested-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: clang-built-linux@googlegroups.com
Fixes: b4dd4f6e3648 ("Add a header file for hypercall definitions")
Link: https://lkml.kernel.org/r/20191021172403.3085-2-thomas_os@shipmail.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
5.4, please pull the following:
- Stefan removes the activity LED node from the CM3 DTS since there is
no driver for that LED yet and leds-gpio cannot drive it either
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Merge tag 'arm-soc/for-5.4/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM-based SoC Device Tree fixes for
5.4, please pull the following:
- Stefan removes the activity LED node from the CM3 DTS since there is
no driver for that LED yet and leds-gpio cannot drive it either
* tag 'arm-soc/for-5.4/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux:
ARM: dts: bcm2837-rpi-cm3: Avoid leds-gpio probing issue
Link: https://lore.kernel.org/r/20191021194302.21024-1-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
5.4, please pull the following:
- Stefan fixes the MMC controller bus-width property for the Raspberry Pi
Zero Wireless which was incorrect after a prior refactoring
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Merge tag 'arm-soc/for-5.4/devicetree-fixes' of https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.4, please pull the following:
- Stefan fixes the MMC controller bus-width property for the Raspberry Pi
Zero Wireless which was incorrect after a prior refactoring
* tag 'arm-soc/for-5.4/devicetree-fixes' of https://github.com/Broadcom/stblinux:
ARM: dts: bcm2835-rpi-zero-w: Fix bus-width of sdhci
Link: https://lore.kernel.org/r/20191015172356.9650-1-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
======================
* fix GPIO backlight support on DA850 by enabling the needed config
in davinci_all_defconfig. This is a fix because the driver and board
support got converted to use BACKLIGHT_GPIO driver, but defconfig update
is still missing in v5.4.
* fix for McBSP DMA on DM365
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Merge tag 'davinci-fixes-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into arm/fixes
DaVinci fixes for v5.4
======================
* fix GPIO backlight support on DA850 by enabling the needed config
in davinci_all_defconfig. This is a fix because the driver and board
support got converted to use BACKLIGHT_GPIO driver, but defconfig update
is still missing in v5.4.
* fix for McBSP DMA on DM365
* tag 'davinci-fixes-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci_all_defconfig: enable GPIO backlight
ARM: davinci: dm365: Fix McBSP dma_slave_map entry
Link: https://lore.kernel.org/r/7f3393f9-59be-a2d4-c1e1-ba6e407681d1@ti.com
Signed-off-by: Olof Johansson <olof@lixom.net>
as well as a fix for the Gru-Kevin display override and fixing the dt-
binding for Theobroma boards to the correct naming that is also actually
used in the wild.
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Merge tag 'v5.4-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes
A number of fixes for individual boards like the rockpro64, and Hugsun X99
as well as a fix for the Gru-Kevin display override and fixing the dt-
binding for Theobroma boards to the correct naming that is also actually
used in the wild.
* tag 'v5.4-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: Fix override mode for rk3399-kevin panel
arm64: dts: rockchip: Fix usb-c on Hugsun X99 TV Box
arm64: dts: rockchip: fix RockPro64 sdmmc settings
arm64: dts: rockchip: fix RockPro64 sdhci settings
arm64: dts: rockchip: fix RockPro64 vdd-log regulator settings
dt-bindings: arm: rockchip: fix Theobroma-System board bindings
arm64: dts: rockchip: fix Rockpro64 RK808 interrupt line
Link: https://lore.kernel.org/r/1599050.HRXuSXmxRg@phil
Signed-off-by: Olof Johansson <olof@lixom.net>
- Re-enable SNVS power key for imx6q-logicpd board which was accidentally
disabled by a SoC level change.
- Fix I2C switches on vf610-zii-scu4-aib board by specifying property
i2c-mux-idle-disconnect.
- A fix on imx-scu API that reads UID from firmware to avoid kernel NULL
pointer dump.
- A series from Anson to correct i.MX7 GPT and i.MX8 USDHC IPG clock.
- A fix on DRM_MSM Kconfig regression on i.MX5 by adding the option
explicitly into imx_v6_v7_defconfig.
- Fix ARM regulator states issue for zii-ultra board, which is impacting
stability of the board.
- A correction on CPU core idle state name for LayerScape LX2160A SoC.
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Merge tag 'imx-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 5.4:
- Re-enable SNVS power key for imx6q-logicpd board which was accidentally
disabled by a SoC level change.
- Fix I2C switches on vf610-zii-scu4-aib board by specifying property
i2c-mux-idle-disconnect.
- A fix on imx-scu API that reads UID from firmware to avoid kernel NULL
pointer dump.
- A series from Anson to correct i.MX7 GPT and i.MX8 USDHC IPG clock.
- A fix on DRM_MSM Kconfig regression on i.MX5 by adding the option
explicitly into imx_v6_v7_defconfig.
- Fix ARM regulator states issue for zii-ultra board, which is impacting
stability of the board.
- A correction on CPU core idle state name for LayerScape LX2160A SoC.
* tag 'imx-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx_v6_v7_defconfig: Enable CONFIG_DRM_MSM
arm64: dts: imx8mn: Use correct clock for usdhc's ipg clk
arm64: dts: imx8mm: Use correct clock for usdhc's ipg clk
arm64: dts: imx8mq: Use correct clock for usdhc's ipg clk
ARM: dts: imx7s: Correct GPT's ipg clock source
ARM: dts: vf610-zii-scu4-aib: Specify 'i2c-mux-idle-disconnect'
ARM: dts: imx6q-logicpd: Re-Enable SNVS power key
arm64: dts: lx2160a: Correct CPU core idle state name
arm64: dts: zii-ultra: fix ARM regulator states
soc: imx: imx-scu: Getting UID from SCU should have response
Link: https://lore.kernel.org/r/20191017141851.GA22506@dragon
Signed-off-by: Olof Johansson <olof@lixom.net>
More fixes for omap variants:
- Update more panel options in omap2plus_defconfig that got changed
as we moved to use generic LCD panels
- Remove unused twl_keypad for logicpd-torpedo-som to avoid boot
time warnings. This is only a cosmetic fix, but at least dmesg output
is now getting more readable after all the fixes to remove pointless
warnings
- Fix gpu_cm node name as we still have a non-standard node name
dependency for clocks. This should eventually get fixed by use
of domain specific compatible property
- Fix use of i2c-mux-idle-disconnect for m3874-iceboard
- Use level interrupt for omap4 & 5 wlcore to avoid lost edge
interrupts
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Merge tag 'omap-for-v5.4/fixes-rc3-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Fixes for omaps for v5.4-rc cycle
More fixes for omap variants:
- Update more panel options in omap2plus_defconfig that got changed
as we moved to use generic LCD panels
- Remove unused twl_keypad for logicpd-torpedo-som to avoid boot
time warnings. This is only a cosmetic fix, but at least dmesg output
is now getting more readable after all the fixes to remove pointless
warnings
- Fix gpu_cm node name as we still have a non-standard node name
dependency for clocks. This should eventually get fixed by use
of domain specific compatible property
- Fix use of i2c-mux-idle-disconnect for m3874-iceboard
- Use level interrupt for omap4 & 5 wlcore to avoid lost edge
interrupts
* tag 'omap-for-v5.4/fixes-rc3-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: Use level interrupt for omap4 & 5 wlcore
ARM: dts: am3874-iceboard: Fix 'i2c-mux-idle-disconnect' usage
ARM: dts: omap5: fix gpu_cm clock provider name
ARM: dts: logicpd-torpedo-som: Remove twl_keypad
ARM: omap2plus_defconfig: Fix selected panels after generic panel changes
Link: https://lore.kernel.org/r/pull-1571242890-118432@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
for 5.4, please pull the following:
- Rayangonda fixes the GPIO pins assignment for the Stringray SoCs
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Merge tag 'arm-soc/for-5.4/devicetree-arm64-fixes' of https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM64-based SoCs Device Tree fixes
for 5.4, please pull the following:
- Rayangonda fixes the GPIO pins assignment for the Stringray SoCs
* tag 'arm-soc/for-5.4/devicetree-arm64-fixes' of https://github.com/Broadcom/stblinux:
arm64: dts: Fix gpio to pinmux mapping
Link: https://lore.kernel.org/r/20191015172356.9650-2-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
r0-r3 & r12 registers are saved & restored, before & after svc
respectively. Intention was to preserve those registers across thread to
handler mode switch.
On v7-M, hardware saves the register context upon exception in AAPCS
complaint way. Restoring r0-r3 & r12 is done from stack location where
hardware saves it, not from the location on stack where these registers
were saved.
To clarify, on stm32f429 discovery board:
1. before svc, sp - 0x90009ff8
2. r0-r3,r12 saved to 0x90009ff8 - 0x9000a00b
3. upon svc, h/w decrements sp by 32 & pushes registers onto stack
4. after svc, sp - 0x90009fd8
5. r0-r3,r12 restored from 0x90009fd8 - 0x90009feb
Above means r0-r3,r12 is not restored from the location where they are
saved, but since hardware pushes the registers onto stack, the registers
are restored correctly.
Note that during register saving to stack (step 2), it goes past
0x9000a000. And it seems, based on objdump, there are global symbols
residing there, and it perhaps can cause issues on a non-XIP Kernel
(on XIP, data section is setup later).
Based on the analysis above, manually saving registers onto stack is at
best no-op and at worst can cause data section corruption. Hence remove
storing of registers onto stack before svc.
Fixes: b70cd406d7fe ("ARM: 8671/1: V7M: Preserve registers across switch from Thread to Handler mode")
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Since ceeeb99cd821 we no longer abuse the DMA_CTRL_ACK flag for custom
driver use and introduced the MXS_DMA_CTRL_WAIT4END instead. We have not
changed all users to this flag though. This patch fixes it for the
mxs-mmc driver.
Fixes: ceeeb99cd821 ("dmaengine: mxs: rename custom flag")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Fabio Estevam <festevam@gmail.com>
Reported-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Tested-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Fix both the string and the struct member being printed.
Changes since v1:
- Now with a bonus grammar fix, too.
Fixes: 264b9436d23b ("drm/komeda: Enable writeback split support")
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190930122231.33029-1-mihail.atanassov@arm.com
