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cpu_to_chip_id() does a DT walk through to find out the chip id by
taking a contended device tree lock. This adds an unnecessary overhead
in a hot path. So instead of calling cpu_to_chip_id() everytime cache
the chip ids for all cores in the array 'core_to_chip_map' and use it
in the hotpath.
Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In the kworker_thread powernv_cpufreq_work_fn(), we can end up
sending an IPI to a cpu going offline. This is a rare corner case
which is fixed using {get/put}_online_cpus(). Along with this fix,
this patch adds changes to do oneshot cpumask_{clear/and} operation.
Suggested-by: Shreyas B Prabhu <shreyas@linux.vnet.ibm.com>
Suggested-by: Gautham R Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This will free the dynamically allocated memory of 'chips' on
module exit.
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The preprocessor magic used for setting the default cpufreq governor
(and for using the performance governor as a fallback one for that
matter) is really nasty, so replace it with __weak functions and
overrides.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Saravana Kannan <skannan@codeaurora.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Here are some small USB fixes and new device ids for 4.5-rc2. Nothing
major here, full details are in the shortlog, and all of these have been
in linux-next successfully.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
"Here are some small USB fixes and new device ids for 4.5-rc2. Nothing
major here, full details are in the shortlog, and all of these have
been in linux-next successfully"
* tag 'usb-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: option: fix Cinterion AHxx enumeration
USB: mxu11x0: fix memory leak on usb_serial private data
USB: serial: ftdi_sio: add support for Yaesu SCU-18 cable
USB: serial: option: Adding support for Telit LE922
USB: serial: visor: fix crash on detecting device without write_urbs
USB: visor: fix null-deref at probe
USB: cp210x: add ID for IAI USB to RS485 adaptor
usb: hub: do not clear BOS field during reset device
cdc-acm:exclude Samsung phone 04e8:685d
usb: cdc-acm: send zero packet for intel 7260 modem
usb: cdc-acm: handle unlinked urb in acm read callback
Here are some small tty/serial driver fixes for 4.5-rc2.
They resolve a number of reported problems (the ioctl one specifically
has been pointed out by numerous people) and one patch adds some new
device ids for the 8250_pci driver. All have been in linux-next
successfully.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small tty/serial driver fixes for 4.5-rc2.
They resolve a number of reported problems (the ioctl one specifically
has been pointed out by numerous people) and one patch adds some new
device ids for the 8250_pci driver. All have been in linux-next
successfully"
* tag 'tty-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: 8250_pci: Add Intel Broadwell ports
staging/speakup: Use tty_ldisc_ref() for paste kworker
n_tty: Fix unsafe reference to "other" ldisc
tty: Fix unsafe ldisc reference via ioctl(TIOCGETD)
tty: Retry failed reopen if tty teardown in-progress
tty: Wait interruptibly for tty lock on reopen
Here are some small staging driver fixes for 4.5-rc2. One of them
predated 4.4-final, but I missed that merge window due to the holliday.
The others fix reported issues that have come up recently. The tty
change is needed for the speakup driver fix and has the ack of the tty
driver maintainer as well, i.e. myself :)
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are some small staging driver fixes for 4.5-rc2.
One of them predated 4.4-final, but I missed that merge window due to
the holliday. The others fix reported issues that have come up
recently. The tty change is needed for the speakup driver fix and has
the ack of the tty driver maintainer as well, i.e. myself :)
All have been in linux-next with no reported issues"
* tag 'staging-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
Staging: speakup: fix read scrolled-back VT
Staging: speakup: Fix getting port information
Revert "Staging: panel: usleep_range is preferred over udelay"
iio: adis_buffer: Fix out-of-bounds memory access
Here's a single driver core fix that resolves an issue a lot of users
have been hitting for a while now. It's been tested a lot and has been
in linux-next successfully for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"Here's a single driver core fix that resolves an issue a lot of users
have been hitting for a while now. It's been tested a lot and has
been in linux-next successfully for a while"
* tag 'driver-core-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
base/platform: Fix platform drivers with no probe callback
Pull timer fixes from Thomas Gleixner:
"The timer departement delivers:
- a regression fix for the NTP code along with a proper selftest
- prevent a spurious timer interrupt in the NOHZ lowres code
- a fix for user space interfaces returning the remaining time on
architectures with CONFIG_TIME_LOW_RES=y
- a few patches to fix COMPILE_TEST fallout"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick/nohz: Set the correct expiry when switching to nohz/lowres mode
clocksource: Fix dependencies for archs w/o HAS_IOMEM
clocksource: Select CLKSRC_MMIO where needed
tick/sched: Hide unused oneshot timer code
kselftests: timers: Add adjtimex SETOFFSET validity tests
ntp: Fix ADJ_SETOFFSET being used w/ ADJ_NANO
itimers: Handle relative timers with CONFIG_TIME_LOW_RES proper
posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper
timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper
hrtimer: Handle remaining time proper for TIME_LOW_RES
clockevents/tcb_clksrc: Prevent disabling an already disabled clock
Pull IRQ fixes from Ingo Molnar:
"Mostly irqchip driver fixes, but also an irq core crash fix and a
build fix"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mxs: Add missing set_handle_irq()
irqchip/atmel-aic: Fix wrong bit operation for IRQ priority
irqchip/gic-v3-its: Recompute the number of pages on page size change
base: Export platform_msi_domain_[alloc,free]_irqs
of: MSI: Simplify irqdomain lookup
irqdomain: Allow domain lookup with DOMAIN_BUS_WIRED token
irqchip: Fix dependencies for archs w/o HAS_IOMEM
irqchip/s3c24xx: Mark init_eint as __maybe_unused
genirq: Validate action before dereferencing it in handle_irq_event_percpu()
- Use alternate group tracking for no-iommu (Alex Williamson)
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Merge tag 'vfio-v4.5-rc2' of git://github.com/awilliam/linux-vfio
Pull VFIO fix from Alex Williamson:
"Use alternate group tracking for no-iommu"
* tag 'vfio-v4.5-rc2' of git://github.com/awilliam/linux-vfio:
vfio/noiommu: Don't use iommu_present() to track fake groups
Pull i2c fixes from Wolfram Sang:
"Here are two I2C driver regression fixes. piix4 gets a larger
overhaul fixing the latest refactoring and also an older known issue
as well. designware-pci gets a fix for a bad merge conflict
resolution"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: piix4: don't regress on bus names
i2c: designware-pci: use IRQF_COND_SUSPEND flag
i2c: piix4: Fully initialize SB800 before it is registered
i2c: piix4: Fix SB800 locking
Pull s390 updates from Martin Schwidefsky:
"An optimization for irq-restore, the SSM instruction is quite a bit
slower than an if-statement and a STOSM.
The copy_file_range system all is added.
Cleanup for PCI and CIO.
And a couple of bug fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/cio: update measurement characteristics
s390/cio: ensure consistent measurement state
s390/cio: fix measurement characteristics memleak
s390/zcrypt: Fix cryptographic device id in kernel messages
s390/pci: remove iomap sanity checks
s390/pci: set error state for unusable functions
s390/pci: fix bar check
s390/pci: resize iomap
s390/pci: improve ZPCI_* macros
s390/pci: provide ZPCI_ADDR macro
s390/pci: adjust IOMAP_MAX_ENTRIES
s390/numa: move numa_init_late() from device to arch_initcall
s390: remove all usages of PSW_ADDR_INSN
s390: remove all usages of PSW_ADDR_AMODE
s390: wire up copy_file_range syscall
s390: remove superfluous memblock_alloc() return value checks
s390/numa: allocate memory with correct alignment
s390/irqflags: optimize irq restore
s390/mm: use TASK_MAX_SIZE where applicable
- Fix a recent cpuidle core regression that broke suspend-to-idle
on all systems where cpuidle drivers don't provide ->enter_freeze
callbacks for any states (Sudeep Holla).
- Drop an unnecessary symbol definition from the cpuidle core code
handling coupled CPU cores (Anders Roxell).
- Fix a race condition related to governor initialization and removal
in the cpufreq core (Viresh Kumar).
- Clean up the cpufreq core to use list_is_last() for checking if
the given policy object is the last element of a list instead of
open coding that in a clumsy way (Gautham R Shenoy).
- Fix compiler warnings in the pxa2xx and cpufreq-dt cpufreq drivers
(Arnd Bergmann).
- Fix two locking issues and clean up a comment in the generic power
domains framework (Ulf Hansson, Marek Szyprowski, Moritz Fischer).
- Fix the error code path of one function in the ACPI-based PCI
hotplug framework (ACPIPHP) that forgets to release a lock
acquired previously (Insu Yun).
- Drop the ACPI backlight blacklist entry for Dell Inspiron 5737
that is not necessary any more (Hans de Goede).
- Clean up the top-level PM Kconfig to stop requiring APM emulation
to depend on PM which in fact isn't necessary (Arnd Bergmann).
/
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Merge tag 'pm+acpi-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These are: cpuidle fixes (including one fix for a recent regression),
cpufreq fixes (including fixes for two issues introduced during the
4.2 cycle), generic power domains framework fixes (two locking fixes
and one cleanup), one locking fix in the ACPI-based PCI hotplug
framework (ACPIPHP), removal of one ACPI backlight blacklist entry
that isn't necessary any more and a PM Kconfig cleanup.
Specifics:
- Fix a recent cpuidle core regression that broke suspend-to-idle on
all systems where cpuidle drivers don't provide ->enter_freeze
callbacks for any states (Sudeep Holla).
- Drop an unnecessary symbol definition from the cpuidle core code
handling coupled CPU cores (Anders Roxell).
- Fix a race condition related to governor initialization and removal
in the cpufreq core (Viresh Kumar).
- Clean up the cpufreq core to use list_is_last() for checking if the
given policy object is the last element of a list instead of open
coding that in a clumsy way (Gautham R Shenoy).
- Fix compiler warnings in the pxa2xx and cpufreq-dt cpufreq drivers
(Arnd Bergmann).
- Fix two locking issues and clean up a comment in the generic power
domains framework (Ulf Hansson, Marek Szyprowski, Moritz Fischer).
- Fix the error code path of one function in the ACPI-based PCI
hotplug framework (ACPIPHP) that forgets to release a lock acquired
previously (Insu Yun).
- Drop the ACPI backlight blacklist entry for Dell Inspiron 5737 that
is not necessary any more (Hans de Goede).
- Clean up the top-level PM Kconfig to stop requiring APM emulation
to depend on PM which in fact isn't necessary (Arnd Bergmann)"
* tag 'pm+acpi-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: cpufreq-dt: avoid uninitialized variable warnings:
cpufreq: pxa2xx: fix pxa_cpufreq_change_voltage prototype
PM: APM_EMULATION does not depend on PM
cpufreq: Use list_is_last() to check last entry of the policy list
cpufreq: Fix NULL reference crash while accessing policy->governor_data
cpuidle: coupled: remove unused define cpuidle_coupled_lock
PM / Domains: Fix typo in comment
PM / Domains: Fix potential deadlock while adding/removing subdomains
ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot()
ACPI: Revert "ACPI / video: Add Dell Inspiron 5737 to the blacklist"
cpuidle: fix fallback mechanism for suspend to idle in absence of enter_freeze
PM / domains: fix lockdep issue for all subdomains
Five patches queued up:
* Two patches for the AMD and Intel IOMMU drivers to fix alias
handling and ATS handling.
* Fix build error with arm io-pgtable code
* Two documentation fixes
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Merge tag 'iommu-fixes-v4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"Five patches queued up:
- Two patches for the AMD and Intel IOMMU drivers to fix alias
handling and ATS handling.
- Fix build error with arm io-pgtable code
- Two documentation fixes"
* tag 'iommu-fixes-v4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu: Update struct iommu_ops comments
iommu/vt-d: Fix link to Intel IOMMU Specification
iommu/amd: Correct the wrong setting of alias DTE in do_attach
iommu/vt-d: Don't skip PCI devices when disabling IOTLB
iommu/io-pgtable-arm: Fix io-pgtable-arm build failure
- Use bit mask to calculate tdp limit in fam15h_power driver
- Black-list Dell Studio XPS 8000 in dell-smm driver
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Merge tag 'hwmon-for-linus-v4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Use bit mask to calculate tdp limit in fam15h_power driver
- Black-list Dell Studio XPS 8000 in dell-smm driver
* tag 'hwmon-for-linus-v4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (fam15h_power) Add bit masking for tdp_limit
hwmon: (dell-smm) Blacklist Dell Studio XPS 8000
Four fixes: one to try to fix our repeated intermittent crashes in
suspend/resume, one to correct a regression in the optimal I/O size reporting
and a couple for randconfig build failures in the hisi_sas driver.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four fixes: one to try to fix our repeated intermittent crashes in
suspend/resume, one to correct a regression in the optimal I/O size
reporting and a couple for randconfig build failures in the hisi_sas
driver"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
SCSI: fix crashes in sd and sr runtime PM
sd: Optimal I/O size is in bytes, not sectors
hisi_sas: Restrict SCSI_HISI_SAS to arm64
hisi_sas: SCSI_HISI_SAS should depend on HAS_DMA
* pm-cpuidle:
cpuidle: coupled: remove unused define cpuidle_coupled_lock
cpuidle: fix fallback mechanism for suspend to idle in absence of enter_freeze
* pm-cpufreq:
cpufreq: cpufreq-dt: avoid uninitialized variable warnings:
cpufreq: pxa2xx: fix pxa_cpufreq_change_voltage prototype
cpufreq: Use list_is_last() to check last entry of the policy list
cpufreq: Fix NULL reference crash while accessing policy->governor_data
* pm-domains:
PM / Domains: Fix typo in comment
PM / Domains: Fix potential deadlock while adding/removing subdomains
PM / domains: fix lockdep issue for all subdomains
* pm-sleep:
PM: APM_EMULATION does not depend on PM
Pull drm fixes from Dave Airlie:
"Summary:
- Misc amdgpu/radeon fixes
- VC4 build fix
- vmwgfx fix
- misc rockchip fixes
The etnaviv guys had an API feature they wanted in their first
release, so I've merged that with their fixes"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (41 commits)
drm/vmwgfx: respect 'nomodeset'
drm/amdgpu: only move pt bos in LRU list on success
drm/radeon: fix DP audio support for APU with DCE4.1 display engine
drm/radeon: Add a common function for DFS handling
drm/radeon: cleaned up VCO output settings for DP audio
drm/amd/powerplay: Update SMU firmware loading for Stoney
drm/etnaviv: call correct function when trying to vmap a DMABUF
drm/etnaviv: rename etnaviv_gem_vaddr to etnaviv_gem_vmap
drm/etnaviv: fix get pages error path in etnaviv_gem_vaddr
drm/etnaviv: fix memory leak in IOMMU init path
drm/etnaviv: add further minor features and varyings count
drm/etnaviv: add helper for comparing model/revision IDs
drm/etnaviv: add helper to extract bitfields
drm/etnaviv: use defined constants for the chip model
drm/etnaviv: update common and state_hi xml.h files
drm/etnaviv: ignore VG GPUs with FE2.0
drm/amdgpu: don't init fbdev if we don't have any connectors
drm/radeon: only init fbdev if we have connectors
drm/radeon: Ensure radeon bo is unreserved in radeon_gem_va_ioctl
drm/etnaviv: fix failure path if model is zero
...
Some recent (early 2015) macbooks have Intel Broadwell where LPSS UARTs are
PCI enumerated instead of ACPI. The LPSS UART block is pretty much same as
used on Intel Baytrail so we can reuse the existing Baytrail setup code.
Add both Broadwell LPSS UART ports to the list of supported devices.
Signed-off-by: Leif Liddy <leif.liddy@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In below commit alias DTE is set when its peripheral is
setting DTE. However there's a code bug here to wrongly
set the alias DTE, correct it in this patch.
commit e25bfb56ea7f046b71414e02f80f620deb5c6362
Author: Joerg Roedel <jroedel@suse.de>
Date: Tue Oct 20 17:33:38 2015 +0200
iommu/amd: Set alias DTE in do_attach/do_detach
Signed-off-by: Baoquan He <bhe@redhat.com>
Tested-by: Mark Hounschell <markh@compro.net>
Cc: stable@vger.kernel.org # v4.4
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Trying to build a kernel for ARC with both options CONFIG_COMPILE_TEST
and CONFIG_IOMMU_IO_PGTABLE_LPAE enabled (e.g. as a result of "make
allyesconfig") results in the following build failure:
| CC drivers/iommu/io-pgtable-arm.o
| linux/drivers/iommu/io-pgtable-arm.c: In
| function ‘__arm_lpae_alloc_pages’:
| linux/drivers/iommu/io-pgtable-arm.c:221:3:
| error: implicit declaration of function ‘dma_map_single’
| [-Werror=implicit-function-declaration]
| dma = dma_map_single(dev, pages, size, DMA_TO_DEVICE);
| ^
| linux/drivers/iommu/io-pgtable-arm.c:221:42:
| error: ‘DMA_TO_DEVICE’ undeclared (first use in this function)
| dma = dma_map_single(dev, pages, size, DMA_TO_DEVICE);
| ^
Since IOMMU_IO_PGTABLE_LPAE depends on DMA API, io-pgtable-arm.c should
include linux/dma-mapping.h. This fixes the reported failure.
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Lada Trimasova <ltrimas@synopsys.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The I2C bus names are supposed to be stable as they can be used by
userspace to uniquely identify a specific I2C bus. So restore the
original names for all legacy (pre-SB800) devices.
For SB800 devices and later, improve the names. "SDA" refers to the
serial data pin of each SMBus port, it's an implementation detail the
user doesn't need to know. Use "port" instead, which is easier to
understand.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Christian Fetzer <fetzer.ch@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Previously, speakup would always read the non-scrolled part of the VT,
even when the VT is scrolled back with shift-page. This patch makes
vt.c export screen_pos so that speakup can use it to properly access
the content of the scrolled-back VT.
This was tested with both vgacon and fbcon.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit f79b0d9c223c ("staging: speakup: Fixed warning <linux/serial.h>
instead of <asm/serial.h>") broke the port information in the speakup
driver: SERIAL_PORT_DFNS only gets defined if asm/serial.h is included,
and no other header includes asm/serial.h.
We here make sure serialio.c does get the arch-specific definition of
SERIAL_PORT_DFNS from asm/serial.h, if any.
Along the way, this makes sure that we do have information for the
requested serial port number (index)
Fixes: f79b0d9c223c ("staging: speakup: Fixed warning <linux/serial.h> instead of <asm/serial.h>")
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: stable <stable@vger.kernel.org> # 3.18
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here are some fixes for drm/rockchip, these fixes base on drm-next.
These fixes works on my popmetal(rk3288) board.
About patch: drm/atomic-helper: Export framebuffer_changed()
Daniel Vetter ack for merging it through rockchip git trees, so framebuffer_changed() can be reused by drm/rockchip.
All others looks good, so I'd like you can land them.
* 'drm-rockchip-next-fixes-2016-01-22' of https://github.com/markyzq/kernel-drm-rockchip:
drm/rockchip: respect CONFIG_DRM_FBDEV_EMULATION
drm/rockchip: fix wrong pitch/size using on gem
drm/rockchip: explain why we can't wait_for_vblanks
drm/rockchip: don't wait for vblank if fb hasn't changed
drm/atomic-helper: Export framebuffer_changed()
drm/rockchip/dsi: fix handling mipi_dsi_pixel_format_to_bpp result
drm/rockchip: vop: fix mask when updating interrupts
drm/rockchip: cleanup unnecessary export symbol
drm/rockchip: Don't build rockchip_drm_vop as modules
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
vc4.
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Merge tag 'drm-vc4-fixes-2015-01-19' of http://github.com/anholt/linux into drm-fixes
This pull request just includes the !CONFIG_PM_SLEEP build fix for
vc4.
* tag 'drm-vc4-fixes-2015-01-19' of http://github.com/anholt/linux:
drm/vc4: Remove broken attempt at GPU reset using genpd.
A bunch of etnaviv fixes for 4.5-rc. Most of them are fixing
things in code paths that will only be hit if something goes
wrong, which have been unearthed by more extensive testing.
The only thing that doesn't really qualify as fixes is an UAPI
extension that userspace wants to rely on being present, so
I want to fast-track this into 4.5 before etnaviv ends up in a
released kernel.
* 'drm-etnaviv-fixes' of git://git.pengutronix.de/git/lst/linux:
drm/etnaviv: call correct function when trying to vmap a DMABUF
drm/etnaviv: rename etnaviv_gem_vaddr to etnaviv_gem_vmap
drm/etnaviv: fix get pages error path in etnaviv_gem_vaddr
drm/etnaviv: fix memory leak in IOMMU init path
drm/etnaviv: add further minor features and varyings count
drm/etnaviv: add helper for comparing model/revision IDs
drm/etnaviv: add helper to extract bitfields
drm/etnaviv: use defined constants for the chip model
drm/etnaviv: update common and state_hi xml.h files
drm/etnaviv: ignore VG GPUs with FE2.0
drm/etnaviv: fix failure path if model is zero
drm/etnaviv: hold object lock while getting pages for coredump
drm/etnaviv: remove owner assignment from platform_driver
Misc radeon and amdgpu fixes:
- SMU firmware loading fix for Stoney
- DP audio fixes for DCE4.1
- Don't expose fbdev device if no connectors
- fix page table LRU list update handling
* 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: only move pt bos in LRU list on success
drm/radeon: fix DP audio support for APU with DCE4.1 display engine
drm/radeon: Add a common function for DFS handling
drm/radeon: cleaned up VCO output settings for DP audio
drm/amd/powerplay: Update SMU firmware loading for Stoney
drm/amdgpu: don't init fbdev if we don't have any connectors
drm/radeon: only init fbdev if we have connectors
drm/radeon: Ensure radeon bo is unreserved in radeon_gem_va_ioctl
drm/amdgpu: fix next_rptr handling for debugfs
drm/radeon: properly byte swap vce firmware setup
drm/amdgpu: add a message to indicate when powerplay is enabled (v2)
drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2
drm/amd/amdgpu: Improve amdgpu_dpm* macros to avoid unexpected result (v2)
drm/amdgpu: Allow the driver to load if amdgpu.powerplay=1 on asics without powerplay support
drm/amdgpu: Use drm_calloc_large for VM page_tables array
drm/amdgpu: Add some tweaks to gfx 8 soft reset
drm/amdgpu: fix tonga smu resume
This fixes a race condition in the error case: since the pt bos have not
necessarily been reserved in case of an error, we could move a pt bo that
is currently in the middle of being evicted/moved by another process,
which then resulted in a BUG_ON in ttm_bo_add_to_lru.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Here are two fixes of crashes in the visor driver that could be
triggered using bad (malicious) descriptors, a fix for two memory leaks
in the new mxu11x0 driver, and an interface-blacklist fix for the option
driver.
Included are also some new device ids.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.5-rc2
Here are two fixes of crashes in the visor driver that could be
triggered using bad (malicious) descriptors, a fix for two memory leaks
in the new mxu11x0 driver, and an interface-blacklist fix for the option
driver.
Included are also some new device ids.
Signed-off-by: Johan Hovold <johan@kernel.org>
gcc warns quite a bit about values returned from allocate_resources()
in cpufreq-dt.c:
cpufreq-dt.c: In function 'cpufreq_init':
cpufreq-dt.c:327:6: error: 'cpu_dev' may be used uninitialized in this function [-Werror=maybe-uninitialized]
cpufreq-dt.c:197:17: note: 'cpu_dev' was declared here
cpufreq-dt.c:376:2: error: 'cpu_clk' may be used uninitialized in this function [-Werror=maybe-uninitialized]
cpufreq-dt.c:199:14: note: 'cpu_clk' was declared here
cpufreq-dt.c: In function 'dt_cpufreq_probe':
cpufreq-dt.c:461:2: error: 'cpu_clk' may be used uninitialized in this function [-Werror=maybe-uninitialized]
cpufreq-dt.c:447:14: note: 'cpu_clk' was declared here
The problem is that it's slightly hard for gcc to follow return
codes across PTR_ERR() calls.
This patch uses explicit assignments to the "ret" variable to make
it easier for gcc to verify that the code is actually correct,
without the need to add a bogus initialization.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There are two definitions of pxa_cpufreq_change_voltage, with slightly
different prototypes after one of them had its argument marked 'const'.
Now the other one (for !CONFIG_REGULATOR) produces a harmless warning:
drivers/cpufreq/pxa2xx-cpufreq.c: In function 'pxa_set_target':
drivers/cpufreq/pxa2xx-cpufreq.c:291:36: warning: passing argument 1 of 'pxa_cpufreq_change_voltage' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
ret = pxa_cpufreq_change_voltage(&pxa_freq_settings[idx]);
^
drivers/cpufreq/pxa2xx-cpufreq.c:205:12: note: expected 'struct pxa_freqs *' but argument is of type 'const struct pxa_freqs *'
static int pxa_cpufreq_change_voltage(struct pxa_freqs *pxa_freq)
^
This changes the prototype in the same way as the other, which
avoids the warning.
Fixes: 03c229906311 (cpufreq: pxa: make pxa_freqs arrays const)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.2+ <stable@vger.kernel.org> # 4.2+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Currently next_policy() explicitly checks if a policy is the last
policy in the cpufreq_policy_list. Use the standard list_is_last
primitive instead.
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This was found with the -RT patch enabled, but the fix should apply to
non-RT also.
Used multi_v7_defconfig+PREEMPT_RT_FULL=y and this caused a compilation
warning without this fix:
../drivers/cpuidle/coupled.c:122:21: warning: 'cpuidle_coupled_lock'
defined but not used [-Wunused-variable]
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
We must preserve the same order of how we acquire and release the lock for
genpd, as otherwise we may encounter deadlocks.
The power on phase of a genpd starts by acquiring its lock. Then it walks
the hierarchy of its parent domains to be able to power on these first, as
per design of genpd.
From a locking perspective this means the locks of the parents becomes
acquired after the lock of the subdomain.
Let's fix pm_genpd_add|remove_subdomain() to maintain the same order of
acquiring/releasing the genpd lock as being applied in the power on/off
sequence.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Using iommu_present() to determine whether an IOMMU group is real or
fake has some problems. First, apparently Power systems don't
register an IOMMU on the device bus, so the groups and containers get
marked as noiommu and then won't bind to their actual IOMMU driver.
Second, I expect we'll run into the same issue as we try to support
vGPUs through vfio, since they're likely to emulate this behavior of
creating an IOMMU group on a virtual device and then providing a vfio
IOMMU backend tailored to the sort of isolation they provide, which
won't necessarily be fully compatible with the IOMMU API.
The solution here is to use the existing iommudata interface to IOMMU
groups, which allows us to easily identify the fake groups we've
created for noiommu purposes. The iommudata we set is purely
arbitrary since we're only comparing the address, so we use the
address of the noiommu switch itself.
Reported-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Tested-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Santosh Shukla <sshukla@mvista.com>
Fixes: 03a76b60f8ba ("vfio: Include No-IOMMU mode")
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Properly setup the DFS divider for DP audio for DCE4.1.
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Move encoding of DFS (digital frequency synthesizer) divider into a
separate function and improve calculation precision.
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This is preparation for the fixes in the following patches.
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Fix firmware init on Stoney when powerplay is enabled.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
