Changes include:
- Support for alternative instruction patching from Andre
- seccomp from Akashi
- Some AArch32 instruction emulation, required by the Android folks
- Optimisations for exception entry/exit code, cmpxchg, pcpu atomics
- mmu_gather range calculations moved into core code
- EFI updates from Ard, including long-awaited SMBIOS support
- /proc/cpuinfo fixes to align with the format used by arch/arm/
- A few non-critical fixes across the architecture
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"Here's the usual mixed bag of arm64 updates, also including some
related EFI changes (Acked by Matt) and the MMU gather range cleanup
(Acked by you).
Changes include:
- support for alternative instruction patching from Andre
- seccomp from Akashi
- some AArch32 instruction emulation, required by the Android folks
- optimisations for exception entry/exit code, cmpxchg, pcpu atomics
- mmu_gather range calculations moved into core code
- EFI updates from Ard, including long-awaited SMBIOS support
- /proc/cpuinfo fixes to align with the format used by arch/arm/
- a few non-critical fixes across the architecture"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (70 commits)
arm64: remove the unnecessary arm64_swiotlb_init()
arm64: add module support for alternatives fixups
arm64: perf: Prevent wraparound during overflow
arm64/include/asm: Fixed a warning about 'struct pt_regs'
arm64: Provide a namespace to NCAPS
arm64: bpf: lift restriction on last instruction
arm64: Implement support for read-mostly sections
arm64: compat: align cacheflush syscall with arch/arm
arm64: add seccomp support
arm64: add SIGSYS siginfo for compat task
arm64: add seccomp syscall for compat task
asm-generic: add generic seccomp.h for secure computing mode 1
arm64: ptrace: allow tracer to skip a system call
arm64: ptrace: add NT_ARM_SYSTEM_CALL regset
arm64: Move some head.text functions to executable section
arm64: jump labels: NOP out NOP -> NOP replacement
arm64: add support to dump the kernel page tables
arm64: Add FIX_HOLE to permanent fixed addresses
arm64: alternatives: fix pr_fmt string for consistency
arm64: vmlinux.lds.S: don't discard .exit.* sections at link-time
...
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Merge tag 'nios2-v3.19-rc1' of git://git.rocketboards.org/linux-socfpga-next
Pull Altera Nios II processor support from Ley Foon Tan:
"Here is the Linux port for Nios II processor (from Altera) arch/nios2/
tree for v3.19.
The patchset has been discussed on the kernel mailing lists since
April and has gone through 6 revisions of review. The additional
changes since then have been mostly further cleanups and fixes when
merged with other trees.
The arch code is in arch/nios2 and one asm-generic change (acked by
Arnd)"
Arnd Bergmann says:
"I've reviewed the architecture port in the past and it looks good in
its latest version"
Acked-by: Arnd Bergmann <arnd@arndb.de>
* tag 'nios2-v3.19-rc1' of git://git.rocketboards.org/linux-socfpga-next: (40 commits)
nios2: Make NIOS2_CMDLINE_IGNORE_DTB depend on CMDLINE_BOOL
nios2: Add missing NR_CPUS to Kconfig
nios2: asm-offsets: Remove unused definition TI_TASK
nios2: Remove write-only struct member from nios2_timer
nios2: Remove unused extern declaration of shm_align_mask
nios2: include linux/type.h in io.h
nios2: move include asm-generic/io.h to end of file
nios2: remove include asm-generic/iomap.h from io.h
nios2: remove unnecessary space before define
nios2: fix error handling of irq_of_parse_and_map
nios2: Use IS_ENABLED instead of #ifdefs to check config symbols
nios2: Build infrastructure
Documentation: Add documentation for Nios2 architecture
MAINTAINERS: Add nios2 maintainer
nios2: ptrace support
nios2: Module support
nios2: Nios2 registers
nios2: Miscellaneous header files
nios2: Cpuinfo handling
nios2: Time keeping
...
Let the compiler decide instead.
No change in object size x86-64 -O2 no profiling
Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is the usual mix of driver updates (srp, ipr, scsi_debug, NCR5380,
fnic, 53c974, ses, wd719x, hpsa, megaraid_sas). Of those, wd7a9x is new and
53c974 is a rewrite of the old tmscsim driver and the extensive work by Finn
Thain rewrites all the NCR5380 based drivers. There's also extensive
infrastructure updates: a new logging infrastructure for sense information and
a rewrite of the tagged command queue API and an assortment of minor updates.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This patch is the usual mix of driver updates (srp, ipr, scsi_debug,
NCR5380, fnic, 53c974, ses, wd719x, hpsa, megaraid_sas).
Of those, wd7a9x is new and 53c974 is a rewrite of the old tmscsim
driver and the extensive work by Finn Thain rewrites all the NCR5380
based drivers.
There's also extensive infrastructure updates: a new logging
infrastructure for sense information and a rewrite of the tagged
command queue API and an assortment of minor updates"
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (183 commits)
scsi: set fmt to NULL scsi_extd_sense_format() by default
libsas: remove task_collector mode
wd719x: remove dma_cache_sync call
scsi_debug: add Report supported opcodes+tmfs; Compare and write
scsi_debug: change SCSI command parser to table driven
scsi_debug: add Capacity Changed Unit Attention
scsi_debug: append inject error flags onto scsi_cmnd object
scsi_debug: pinpoint invalid field in sense data
wd719x: Add firmware documentation
wd719x: Introduce Western Digital WD7193/7197/7296 PCI SCSI card driver
eeprom-93cx6: Add (read-only) support for 8-bit mode
esas2r: fix an oversight in setting return value
esas2r: fix an error path in esas2r_ioctl_handler
esas2r: fir error handling in do_fm_api
scsi: add SPC-3 command definitions
scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16
scsi: remove scsi_driver owner field
scsi: move scsi_dispatch_cmd to scsi_lib.c
scsi: stop passing a gfp_mask argument down the command setup path
scsi: remove scsi_next_command
...
New driver for NCT7802Y
Add support for TMP435, LM95233, LM95235, NCT6792D, and NXP LM75B
Add regulator support for PMBus chips, specifically LTX2978
Add support for humidity sensors to iio-hwmon bridge driver
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Merge tag 'hwmon-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"Notable changes:
- new driver for NCT7802Y
- support for TMP435, LM95233, LM95235, NCT6792D, and NXP LM75B
- regulator support for PMBus chips, specifically LTX2978
- support for humidity sensors to iio-hwmon bridge driver
* tag 'hwmon-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (21 commits)
hwmon: (tmp401) Detect TMP435 on all addresses it supports
hwmon: (lm75) Strengthen detect function
hwmon: (gpio-fan) Add a shutdown handler to poweroff the fans
hwmon: (gpio-fan) Allow usage of gpio operations that may sleep
hwmon: (tmp401) Bail out from tmp401_probe() in case of write errors
hwmon: (tmp401) Add support for TI TMP435
hwmon: (lm95234) Add support for LM95233
hwmon: (lm95245) Add support for LM95235
hwmon: (ina2xx) bail-out from ina2xx_probe() in case of configuration errors
hwmon: (nct6775) Add blank lines after declarations
hwmon: (nct6775) Add support for NCT6792D
hwmon: (nct6775) Documentation updates
hwmon: (lm75) Add support for the NXP LM75B
hwmon: Driver for Nuvoton NCT7802Y
hwmon: (ibmpowernv) Convert to module_platform_driver
hwmon: (ibmpowernv) Use platform 'id_table' to probe the device
hwmon: (iio_hwmon) Add support for humidity sensors
hwmon: (ltc2978) Add regulator support
hwmon: (pmbus) Add regulator support
hwmon: (pmbus) add helpers for byte write and read modify write
...
* Enablement for AMD F15h models 0x60 CPUs. Most notably DDR4 RAM
support. Out of tree stuff is
arch/x86/kernel/amd_nb.c | 2 +
include/linux/pci_ids.h | 2 +
adding the required PCI IDs. From Aravind Gopalakrishnan.
* Enable amd64_edac for 32-bit due to popular demand. From Tomasz Pala.
* Convert the AMD MCE injection module to debugfs, where it belongs.
* Misc EDAC cleanups
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Merge tag 'edac_for_3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
"EDAC updates all over the place:
- Enablement for AMD F15h models 0x60 CPUs. Most notably DDR4 RAM
support. Out of tree stuff is adding the required PCI IDs. From
Aravind Gopalakrishnan.
- Enable amd64_edac for 32-bit due to popular demand. From Tomasz
Pala.
- Convert the AMD MCE injection module to debugfs, where it belongs.
- Misc EDAC cleanups"
* tag 'edac_for_3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, MCE, AMD: Correct formatting of decoded text
EDAC, mce_amd_inj: Add an injector function
EDAC, mce_amd_inj: Add hw-injection attributes
EDAC, mce_amd_inj: Enable direct writes to MCE MSRs
EDAC, mce_amd_inj: Convert mce_amd_inj module to debugfs
EDAC: Delete unnecessary check before calling pci_dev_put()
EDAC, pci_sysfs: remove unneccessary ifdef around entire file
ghes_edac: Use snprintf() to silence a static checker warning
amd64_edac: Build module on x86-32
EDAC, MCE, AMD: Add decoding table for MC6 xec
amd64_edac: Add F15h M60h support
{mv64x60,ppc4xx}_edac,: Remove deprecated IRQF_DISABLED
EDAC: Sync memory types and names
EDAC: Add DDR3 LRDIMM entries to edac_mem_types
x86, amd_nb: Add device IDs to NB tables for F15h M60h
pci_ids: Add PCI device IDs for F15h M60h
- Consolidation and cleanups.
- Some improvements regarding error handling.
- Increase maximum amount of block devices.
- Use correct OCR mask for SDIO when restoring power.
- Fix prepared requests while doing BKOPS.
- Convert to modern PM ops.
- Add mmc_send_tuning() API and convert some hosts to use it.
MMC host:
- toshsd: New Toshiba PCI SD controller driver.
- sdhci: 64-bit ADMA support.
- sdhci: Some regulator fixes.
- sdhci: HS400 support.
- sdhci: Various fixes cleanups.
- atmel-mci: Modernization and cleanups.
- atmel-mci: Runtime PM support.
- omap_hsmmc: Modernization and cleanups.
- omap_hsmmc: Fix UHS card with DDR50 support.
- dw_mmc: Support for ARM64 and Exynos 7 variant.
- dw_mmc: Add support for IMG Pistachio variant.
- dw_mmc: Various fixes and cleanups.
- mvsdio: DMA fixes.
- mxs-mmc: Modernization and cleanups.
- mxcmmc: Various fixes.
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Merge tag 'mmc-v3.19-1' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Consolidation and cleanups.
- Some improvements regarding error handling.
- Increase maximum amount of block devices.
- Use correct OCR mask for SDIO when restoring power.
- Fix prepared requests while doing BKOPS.
- Convert to modern PM ops.
- Add mmc_send_tuning() API and convert some hosts to use it.
MMC host:
- toshsd: New Toshiba PCI SD controller driver.
- sdhci: 64-bit ADMA support.
- sdhci: Some regulator fixes.
- sdhci: HS400 support.
- sdhci: Various fixes cleanups.
- atmel-mci: Modernization and cleanups.
- atmel-mci: Runtime PM support.
- omap_hsmmc: Modernization and cleanups.
- omap_hsmmc: Fix UHS card with DDR50 support.
- dw_mmc: Support for ARM64 and Exynos 7 variant.
- dw_mmc: Add support for IMG Pistachio variant.
- dw_mmc: Various fixes and cleanups.
- mvsdio: DMA fixes.
- mxs-mmc: Modernization and cleanups.
- mxcmmc: Various fixes"
* tag 'mmc-v3.19-1' of git://git.linaro.org/people/ulf.hansson/mmc: (126 commits)
mmc: sdhci-msm: Convert to mmc_send_tuning()
mmc: sdhci-esdhc-imx: Convert to mmc_send_tuning()
mmc: core: Let mmc_send_tuning() to take struct mmc_host* as parameter
mmc: queue: Improve error handling during allocation of bounce buffers
mmc: sdhci-acpi: Add two host capabilities for Intel
mmc: sdhci-pci: Add two host capabilities for BYT
mmc: sdhci-acpi: Add SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
mmc: sdhci-pci: Add SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC to BYT
mmc: atmel-mci: use probe deferring if dma controller is not ready yet
mmc: atmel-mci: stop using specific initcall
mmc: atmel-mci: remove __init/__exit attributes
mmc: atmel-mci: remove useless DMA stuff for non-dt devices
mmc: omap_hsmmc: Fix UHS card with DDR50 support
mmc: core: add core-level function for sending tuning commands
mmc: core: hold SD Clock before CMD11 during Signal
mmc: mxs-mmc: Check for clk_prepare_enable() error
mmc: mxs-mmc: Propagate the real error
mmc: mxs-mmc: No need to do NULL check on 'iores'
mmc: dw_mmc: Add support for IMG Pistachio
mmc: mxs-mmc: Simplify PM hooks
...
This patch adds support for VIO v1.7 (extended descriptor format)
and v1.8 (receive-side checksumming) to the sunvnet driver.
Signed-off-by: David L Stevens <david.stevens@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove optimize_div() from BPF_MOD | BPF_K case
since we don't know the dividend and fix the
emit_mod() by reading the mod operation result from HI register
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* pm-cpufreq: (21 commits)
intel_pstate: skip this driver if Sun server has _PPC method
cpufreq: arm_big_little: free OPP table created during ->init()
imx6q: free OPP table created during ->init()
exynos5440: free OPP table created during ->init()
cpufreq-dt: free OPP table created during ->init()
cpufreq-dt: register cooling device from ->ready() callback
cpufreq: Introduce ->ready() callback for cpufreq drivers
cpufreq-dt: pass 'policy->related_cpus' to of_cpufreq_cooling_register()
cpufreq: Fix formatting issues in 'struct cpufreq_driver'
cpufreq: pxa2xx: Add Kconfig entry
cpufreq: Ref the policy object sooner
cpufreq: Kconfig: Remove architecture specific menu entries
cpufreq: pcc: Enable autoload of pcc-cpufreq for ACPI processors
intel_pstate: Add CPUID for BDW-H CPU
intel_pstate: Add support for HWP
x86: Add support for Intel HWP feature detection.
cpufreq: respect the min/max settings from user space
cpufreq: cpufreq-dt: Handle regulator_get_voltage() failure
cpufreq: cpufreq-dt: Improve debug about matching OPP
cpufreq: Loongson1: Add cpufreq driver for Loongson1B
...
* pm-cpuidle:
cpuidle: add MAINTAINERS entry for ARM Exynos cpuidle driver
drivers: cpuidle: Remove cpuidle-arm64 duplicate error messages
drivers: cpuidle: Add idle-state-name description to ARM idle states
drivers: cpuidle: Add status property to ARM idle states
cpuidle: Invert CPUIDLE_FLAG_TIME_VALID logic
* pm-domains:
ARM: shmobile: Convert to genpd flags for PM clocks for R-mobile
ARM: shmobile: Convert to genpd flags for PM clocks for r8a7779
PM / Domains: Initial PM clock support for genpd
PM / Domains: Power on the PM domain right after attach completes
PM / Domains: Move struct pm_domain_data to pm_domain.h
PM / Domains: Extract code to power off/on a PM domain
PM / Domains: Make genpd parameter of pm_genpd_present() const
* pm-sleep:
PM / hibernate: Deletion of an unnecessary check before the function call "vfree"
PM / Hibernate: Migrate to ktime_t
* pm-tools:
tools: cpupower: fix return checks for sysfs_get_idlestate_count()
* device-properties:
leds: leds-gpio: Fix multiple instances registration without 'label' property
leds: leds-gpio: Fix legacy GPIO number case
ACPI / property: Drop size_prop from acpi_dev_get_property_reference()
leds: leds-gpio: Convert gpio_blink_set() to use GPIO descriptors
ACPI / GPIO: Document ACPI GPIO mappings API
net: rfkill: gpio: Add default GPIO driver mappings for ACPI
ACPI / GPIO: Driver GPIO mappings for ACPI GPIOs
input: gpio_keys_polled: Make use of device property API
leds: leds-gpio: Make use of device property API
gpio: Support for unified device properties interface
Driver core: Unified interface for firmware node properties
input: gpio_keys_polled: Add support for GPIO descriptors
leds: leds-gpio: Add support for GPIO descriptors
gpio: sch: Consolidate core and resume banks
gpio / ACPI: Add support for _DSD device properties
misc: at25: Make use of device property API
ACPI: Allow drivers to match using Device Tree compatible property
Driver core: Unified device properties interface for platform firmware
ACPI: Add support for device specific properties
The at91 cleanups changed a lot of files, this merges in the
latest cleanups to resolve the conflicts
Conflicts:
arch/arm/mach-at91/at91sam9260.c
arch/arm/mach-at91/at91sam9261.c
arch/arm/mach-at91/at91sam9263.c
arch/arm/mach-at91/clock.c
arch/arm/mach-at91/clock.h
drivers/rtc/Kconfig
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This resolves a nonobvious merge conflict that I got wrong the
first time.
* brcm/stb-smp-uart:
bus: brcmstb_gisb: save and restore GISB timeout
bus: brcmstb_gisb: register the fault code hook
ARM: brcmstb: Kconfig: drop unneeded symbol selections
ARM: brcmstb: reintroduce SMP support
ARM: brcmstb: add debug UART for earlyprintk support
Conflicts:
drivers/bus/brcmstb_gisb.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Conflicts:
drivers/scsi/scsi_debug.c
Agreed and tested resolution to a merge problem between a fix in scsi_debug
and a driver update
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
git commit 8461b63ca0
"s390: translate cputime magic constants to macros"
introduce a built error for 31-bit:
kernel/built-in.o: In function `posix_cpu_timer_set':
posix-cpu-timers.c:(.text+0x2a8cc): undefined reference to `__udivdi3'
The original code is actually broken for 31-bit and has been
corrected by the above commit by forcing the compiler to use
64-bit arithmetic through the CPUTIME_PER_USEC define.
To fix the compile error replace the 64-bit division with
a call to __div().
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
systemd has a hard dependency on CONFIG_FHANDLE.
If you run systemd with CONFIG_FHANDLE=n it will somehow
boot but fail to spawn a getty or other basic services.
As systemd is now used by most x86 distributions it
makes sense to enabled this by default and save kernel
hackers a lot of value debugging time.
Signed-off-by: Richard Weinberger <richard@nod.at>
Cc: gregkh@linuxfoundation.org
Cc: rafael.j.wysocki@intel.com
Cc: pebolle@tiscali.nl
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1416958612-7448-1-git-send-email-richard@nod.at
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch_spin_unlock_wait() looks very suboptimal, to the point I
think this is just wrong and can lead to livelock: if the lock
is heavily contended we can never see head == tail.
But we do not need to wait for arch_spin_is_locked() == F. If it
is locked we only need to wait until the current owner drops
this lock. So we could simply spin until old_head !=
lock->tickets.head in this case, but .head can overflow and thus
we can't check "unlocked" only once before the main loop.
Also, the "unlocked" check can ignore TICKET_SLOWPATH_FLAG bit.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Paul E.McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Waiman Long <Waiman.Long@hp.com>
Link: http://lkml.kernel.org/r/20141201213417.GA5842@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The pmd_free_tlb function fails to call pgtable_pmd_page_dtor.
Without the call the ptlock for the pmd tables will not be freed.
Add the missing call.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
To improve the output of the perf tool hide most of the symbols
from entry[64].S by using the '.L' prefix.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
On machines with support for vector registers the signal frame includes
an area for the vector registers and the ptrace regset interface allow
read and write. This is true even if the task never used any vector
instruction. Only elf core dumps do not include the vector registers,
to make things consistent always include the vector register note in
core dumps create on a machine with vector register support.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The copy_thread function fails to reset the p->thread.vxrs pointer.
This causes the child to use the same vector register save area,
causing both data corruptions and multiple frees of the memory for
the save area after the tasks sharing the save area terminate.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
s390 uses open coded seqcount to synchronize idle time accounting.
Lets consolidate it with the standard API.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
psw_idle() returns with interrupts disabled, so we should add the
missing annotation.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
debug_sprintf_event/exception are called even for debug events
with a disabling debug level. All other functions already do
the check in a wrapper function. Lets do the same here.
Due to the var_args the compiler rejects to make this function
inline. So let's wrap this via a macro.
This patch saves around 80 ns on my z196 for a KVM round trip (we
have two debug statements for entry and exit) when KVM is build as
a module.
The savings for built-in drivers is smaller as we then avoid the
PLT overhead for a function call.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
If NIOS2_CMDLINE_IGNORE_DTB is selected but CMDLINE_BOOL isn't and thus
CONFIG_CMDLINE is not defined, the build fails with the following error:
arch/nios2/kernel/setup.c: In function 'nios2_boot_init':
arch/nios2/kernel/setup.c:131:30: error: 'CONFIG_CMDLINE' undeclared
(first use in this function)
strncpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
This can be reproduced using randconfig with KCONFIG_SEED=0xE5B8749E, i.e.
'make KCONFIG_SEED=0xE5B8749E ARCH=nios2 randconfig'.
Fix this by letting NIOS2_CMDLINE_IGNORE_DTB depend on CMDLINE_BOOL, so we
actually have a default kernel command string to fall back to.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
kernel/time/Kconfig expects that NR_CPUS is defined.
This fixes the following config warning:
"kernel/time/Kconfig:163:warning: range is invalid"
Follow 4cbbbb43d6 ("microblaze: Fix missing NR_CPUS in menuconfig")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
TI_TASK is not used in nios2 assembly code, so remove it.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
The irq member of struct nios2_timer is only written to but
never read, thus it can be removed.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
shm_align_mask is not defined/used on nios2, thus there is no need to
declare it.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
Move asm-generic/io.h to end of file to override functions like
phys_to_virt, virt_to_phys in asm-generic/io.h.
This is due to recent commit 9216efaf introduced new way to
override functions by checking for the existence of a macro with the
same of the function.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Don't need asm-generic/iomap.h and asm-generic/io.h added
default ioread8/16/32 iowrite8/16/32 implementation.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
Make the checking for div/mul/mulx instruction config symbols easier to
read by using IS_ENABLED instead of #ifdefs.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
This patch adds support for system calls from userspaces. It uses the
asm-generic/unistd.h definitions with architecture spcific syscall.
The sys_call_table is just an array defined in a C file and it contains
pointers to the syscall functions.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
This patch adds support for the handling of the MMU faults (exception
entry code introduced by a previous patch, kernel/entry.S).
Signed-off-by: Ley Foon Tan <lftan@altera.com>
This patch add assembly macros and definitions used in
the .S files across arch/nios2/ and together with asm-offsets.c.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Normally, we do reapply microcode on resume. However, in the cases where
that microcode comes from the early loader and the late loader hasn't
been utilized yet, there's no easy way for us to go and apply the patch
applied during boot by the early loader.
Thus, reuse the patch stashed by the early loader for the BSP.
Signed-off-by: Borislav Petkov <bp@suse.de>
Paravirtual guests are not expected to load microcode into processors
and therefore it is not necessary to initialize microcode loading
logic.
In fact, under certain circumstances initializing this logic may cause
the guest to crash. Specifically, 32-bit kernels use __pa_nodebug()
macro which does not work in Xen (the code path that leads to this macro
happens during resume when we call mc_bp_resume()->load_ucode_ap()
->check_loader_disabled_ap())
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: http://lkml.kernel.org/r/1417469264-31470-1-git-send-email-boris.ostrovsky@oracle.com
Signed-off-by: Borislav Petkov <bp@suse.de>
introduce new setsockopt() command:
setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, sizeof(prog_fd))
where prog_fd was received from syscall bpf(BPF_PROG_LOAD, attr, ...)
and attr->prog_type == BPF_PROG_TYPE_SOCKET_FILTER
setsockopt() calls bpf_prog_get() which increments refcnt of the program,
so it doesn't get unloaded while socket is using the program.
The same eBPF program can be attached to multiple sockets.
User task exit automatically closes socket which calls sk_filter_uncharge()
which decrements refcnt of eBPF program
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
classic BPF has a restriction that last insn is always BPF_RET.
eBPF doesn't have BPF_RET instruction and this restriction.
It has BPF_EXIT insn which can appear anywhere in the program
one or more times and it doesn't have to be last insn.
Fix eBPF JIT to emit epilogue when first BPF_EXIT is seen
and all other BPF_EXIT instructions will be emitted as jump.
Since jump offset to epilogue is computed as:
jmp_offset = ctx->cleanup_addr - addrs[i]
we need to change type of cleanup_addr to signed to compute the offset as:
(long long) ((int)20 - (int)30)
instead of:
(long long) ((unsigned int)20 - (int)30)
Fixes: 622582786c ("net: filter: x86: internal BPF JIT")
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull x86 fixes from Thomas Gleixner:
"Two final fixlets for 3.18:
- Prevent microcode reload wreckage on 32bit
- Unbreak cross compilation"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, microcode: Limit the microcode reloading to 64-bit for now
x86: Use $(OBJDUMP) instead of plain objdump
This will enable use of physical arch timers on rk3288, where each
core comes out of reset with a different virtual offset. Using
physical timers will help with SMP booting on coreboot and older
u-boot and should also allow suspend-resume and cpu-hotplug to work on
all firmwares.
Firmware which does initialize the cpu registers properly at boot and
cpu-hotplug can remove this property from the device tree.
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Many of AM335x and AM437x hook backlight to
one of these two devices. By enabling their
drivers we make sure pwm-backlight can do
its thing.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
AM437x devices have a DWC3 IP inside of them.
The host side implementation of DWC3 is XHCI
compliant. By enabling XHCI driver, we get
the USB host port on AM437x Starter Kit working
out of the box.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Without this, sound on AM437x Starter Kit will
not work.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
AM437x Starter Kit ships with EDT FT5306 touchscreen
device. By enabling the driver we make sure touchscreen
will work out of the box.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
None of these drivers are known to be used on
any platform supported by omap2plus_defconfig,
by removing them we get a slight smaller kernel.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The commit 3690951fc6
(arm64: Use swiotlb late initialisation)
switches the DMA mapping code to swiotlb_tlb_late_init_with_default_size(),
the arm64_swiotlb_init() will not used anymore, so remove this function.
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
We now have the physical-timers patches lined up as a dependency in this same
branch, so we can revert the temporary disablement.
This reverts commit b77d43943e.
Signed-off-by: Olof Johansson <olof@lixom.net>
These are a pre-req to get rk3288 SMP to work with some firmwares, so merge
it in here as well as in next/drivers.
* clocksource/physical-timers:
clocksource: arch_timer: Allow the device tree to specify uninitialized timer registers
clocksource: arch_timer: Fix code to use physical timers when requested
* clocksource/physical-timers:
clocksource: arch_timer: Allow the device tree to specify uninitialized timer registers
clocksource: arch_timer: Fix code to use physical timers when requested
This is a bug fix for using physical arch timers when
the arch_timer_use_virtual boolean is false. It restores the
arch_counter_get_cntpct() function after removal in
0d651e4e "clocksource: arch_timer: use virtual counters"
We need this on certain ARMv7 systems which are architected like this:
* The firmware doesn't know and doesn't care about hypervisor mode and
we don't want to add the complexity of hypervisor there.
* The firmware isn't involved in SMP bringup or resume.
* The ARCH timer come up with an uninitialized offset between the
virtual and physical counters. Each core gets a different random
offset.
* The device boots in "Secure SVC" mode.
* Nothing has touched the reset value of CNTHCTL.PL1PCEN or
CNTHCTL.PL1PCTEN (both default to 1 at reset)
One example of such as system is RK3288 where it is much simpler to
use the physical counter since there's nobody managing the offset and
each time a core goes down and comes back up it will get reinitialized
to some other random value.
Fixes: 0d651e4e65 ("clocksource: arch_timer: use virtual counters")
Cc: stable@vger.kernel.org
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
The imx6 PM code seems to be quite creative in its use of irq_data,
using something that is very much a hardware interrupt number where
we expect a virtual one. Yes, it worked so far, but that's only
luck, and it will definitely explode in 3.19.
Fix it by using a pair of helper functions that deal with the
actual hardware.
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
mach-imx directly references to the irq field in
struct irq_data, and uses this to directly poke hardware register.
But irq is the *virtual* irq number, something that has nothing
to do with the actual HW irq (stored in the hwirq field). And once
we put the stacked domain code in action, the whole thing explodes,
as these two values are *very* different.
Just replacing all instances of irq with hwirq fixes the issue.
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This adds the IRQ number to the main dts file and some new dts files
for newly added devices.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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Merge tag 'bcm5301x-dt-2014-12-04' of https://github.com/hauke/linux into next/dt
Merge "ARM: BCM5301X: DT changes for v3.19 #2" from Hauke Mehrtens:
ARM: BCM5301X: dts updates
This adds the IRQ number to the main dts file and some new dts files
for newly added devices.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
* tag 'bcm5301x-dt-2014-12-04' of https://github.com/hauke/linux:
ARM: BCM5301X: Add DT for Buffalo WZR-600DHP2
ARM: BCM5301X: Add DT for Asus RT-N18U
ARM: BCM5301X: Add DT for Buffalo WZR-1750DHP
ARM: BCM5301X: Add DT for Netgear R6300 V2
ARM: BCM5301X: Add buttons for Netgear R6250
ARM: BCM5301X: Add IRQs to Broadcom's bus-axi in DTS file
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch enables the MAX77686 PMIC drivers in the multi_v7_defconfig used
on exynos4412-prime family of SoCs [1]. The exynos4412-prime based boards
are producing the following runtime errors only on the multi_v7_defconfig [2]:
kern.err: deviceless supply vdd_arm not found, using dummy regulator
kern.err: exynos-cpufreq exynos-cpufreq: failed to set cpu voltage to 1287500
kern.err: cpufreq: __target_index: Failed to change cpu frequency: -22
I reviewed the exynos_defconfig, which does not produce these runtime
errors. It was obvious that the exynos_defconfig has the PMIC drivers
enabled, whereas the multi_v7_defconfig does not. This patch has been tested
on a odroid-u2 and a odroid-u3 board. It has resolved the runtime errors.
Therefore, I purpose we enabled these drivers in the multi_v7_defconfig.
[1] http://www.hardkernel.com/main/products/prdt_info.php?g_code=G135270682824
[2] http://storage.armcloud.us/kernel-ci/mainline/v3.18-rc7-48-g7cc78f8/arm-multi_v7_defconfig/lab-tbaker-00/boot-exynos4412-odroidu3.html
Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
- removal of now dead code and AT91-specific driver
- removal of !DT initialization in some core AT91 drivers
- simplification of Kconfig DT board file selection: now automatic
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Merge tag 'at91-cleanup5' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/cleanup
Pull "Fifth batch of cleanup/SoC for 3.19" from Nicolas Ferre:
- removal of now dead code and AT91-specific driver
- removal of !DT initialization in some core AT91 drivers
- simplification of Kconfig DT board file selection: now automatic
* tag 'at91-cleanup5' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: at91: remove unused board.h file
ARM: at91: remove unneeded header files
ARM: at91/clocksource: remove !DT PIT initializations
ARM: at91: at91rm9200 ST initialization is now DT only
ARM: at91: remove old AT91-specific drivers
ARM: at91: cleanup initilisation code by removing dead code
ARM: at91/Kconfig: select board files automatically
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- use NEON for all C-A5, neon code handles the !NEON case
- add new XDMA driver
- add some useful drivers as we only have a single defconfig for all
AT91SAM9/RM9200
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Merge tag 'at91-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/defconfig
Pull "First batch of defconfigs for AT91 / 3.19:" from Nicolas Ferre:
- use NEON for all C-A5, neon code handles the !NEON case
- add new XDMA driver
- add some useful drivers as we only have a single defconfig for all
AT91SAM9/RM9200
* tag 'at91-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: at91/defconfig: add DM9000 to at91_dt
ARM: at91/defconfig: add QT1070 to at91_dt
ARM: at91/defconfig: add TCB PWM driver selection
ARM: at91/defconfig: add the XDMA driver
ARM: at91: sama5: update defconfig
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
commit 68a3c04330 ([media] ARM: OMAP2: RX-51: update
si4713 platform data) updated board-rx51-peripherals.c
so that si4713 could be easily used on DT boot, but
it ended up introducing a build warning whenever
si4713 isn't enabled.
This patches fixes that warning:
arch/arm/mach-omap2/board-rx51-peripherals.c:1000:36: warning: \
‘rx51_si4713_platform_data’ defined but not used [-Wunused-variable]
static struct si4713_platform_data rx51_si4713_platform_data = {
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
