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For the ELFv2 ABI, the hander is the entry point, not a function descriptor.
We also need to set up r12, and fortunately the fast_exception_return
exit path restores r12 for us so nothing else is required.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
No function descriptor, but we set r12 up and set TIF_RESTOREALL as it
normally isn't restored on return from syscall.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
We leave it at zero (though it could be 1) for old tasks.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Little endian ppc64 is getting an exciting new ABI. This is reflected
by the bottom two bits of e_flags in the ELF header:
0 == legacy binaries (v1 ABI)
1 == binaries using the old ABI (compiled with a new toolchain)
2 == binaries using the new ABI.
We store this in a thread flag, because we need to set it in core
dumps and for signal delivery. Our chief concern is that it doesn't
use function descriptors.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
On little endian builds call H_SET_MODE so exceptions have the
correct endianness. We need to reset the endian during kexec
so do that in the MMU hashtable clear callback.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
- ACPI-based device hotplug fixes for issues introduced recently and
a fix for an older error code path bug in the ACPI PCI host bridge
driver.
- Fix for recently broken OMAP cpufreq build from Viresh Kumar.
- Fix for a recent hibernation regression related to s2disk.
- Fix for a locking-related regression in the ACPI EC driver from
Puneet Kumar.
- System suspend error code path fix related to runtime PM and
runtime PM documentation update from Ulf Hansson.
- cpufreq's conservative governor fix from Xiaoguang Chen.
- New processor IDs for intel_idle and turbostat and removal of
an obsolete Kconfig option from Len Brown.
- New device IDs for the ACPI LPSS (Low-Power Subsystem) driver and
ACPI-based PCI hotplug (ACPIPHP) cleanup from Mika Westerberg.
- Removal of several ACPI video DMI blacklist entries that are not
necessary any more from Aaron Lu.
- Rework of the ACPI companion representation in struct device and
code cleanup related to that change from Rafael J Wysocki,
Lan Tianyu and Jarkko Nikula.
- Fixes for assigning names to ACPI-enumerated I2C and SPI devices
from Jarkko Nikula.
/
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Merge tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI and power management updates from Rafael Wysocki:
- ACPI-based device hotplug fixes for issues introduced recently and a
fix for an older error code path bug in the ACPI PCI host bridge
driver
- Fix for recently broken OMAP cpufreq build from Viresh Kumar
- Fix for a recent hibernation regression related to s2disk
- Fix for a locking-related regression in the ACPI EC driver from
Puneet Kumar
- System suspend error code path fix related to runtime PM and runtime
PM documentation update from Ulf Hansson
- cpufreq's conservative governor fix from Xiaoguang Chen
- New processor IDs for intel_idle and turbostat and removal of an
obsolete Kconfig option from Len Brown
- New device IDs for the ACPI LPSS (Low-Power Subsystem) driver and
ACPI-based PCI hotplug (ACPIPHP) cleanup from Mika Westerberg
- Removal of several ACPI video DMI blacklist entries that are not
necessary any more from Aaron Lu
- Rework of the ACPI companion representation in struct device and code
cleanup related to that change from Rafael J Wysocki, Lan Tianyu and
Jarkko Nikula
- Fixes for assigning names to ACPI-enumerated I2C and SPI devices from
Jarkko Nikula
* tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits)
PCI / hotplug / ACPI: Drop unused acpiphp_debug declaration
ACPI / scan: Set flags.match_driver in acpi_bus_scan_fixed()
ACPI / PCI root: Clear driver_data before failing enumeration
ACPI / hotplug: Fix PCI host bridge hot removal
ACPI / hotplug: Fix acpi_bus_get_device() return value check
cpufreq: governor: Remove fossil comment in the cpufreq_governor_dbs()
ACPI / video: clean up DMI table for initial black screen problem
ACPI / EC: Ensure lock is acquired before accessing ec struct members
PM / Hibernate: Do not crash kernel in free_basic_memory_bitmaps()
ACPI / AC: Remove struct acpi_device pointer from struct acpi_ac
spi: Use stable dev_name for ACPI enumerated SPI slaves
i2c: Use stable dev_name for ACPI enumerated I2C slaves
ACPI: Provide acpi_dev_name accessor for struct acpi_device device name
ACPI / bind: Use (put|get)_device() on ACPI device objects too
ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro
ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node
cpufreq: OMAP: Fix compilation error 'r & ret undeclared'
PM / Runtime: Fix error path for prepare
PM / Runtime: Update documentation around probe|remove|suspend
cpufreq: conservative: set requested_freq to policy max when it is over policy max
...
Pull slave-dmaengine changes from Vinod Koul:
"This brings for slave dmaengine:
- Change dma notification flag to DMA_COMPLETE from DMA_SUCCESS as
dmaengine can only transfer and not verify validaty of dma
transfers
- Bunch of fixes across drivers:
- cppi41 driver fixes from Daniel
- 8 channel freescale dma engine support and updated bindings from
Hongbo
- msx-dma fixes and cleanup by Markus
- DMAengine updates from Dan:
- Bartlomiej and Dan finalized a rework of the dma address unmap
implementation.
- In the course of testing 1/ a collection of enhancements to
dmatest fell out. Notably basic performance statistics, and
fixed / enhanced test control through new module parameters
'run', 'wait', 'noverify', and 'verbose'. Thanks to Andriy and
Linus [Walleij] for their review.
- Testing the raid related corner cases of 1/ triggered bugs in
the recently added 16-source operation support in the ioatdma
driver.
- Some minor fixes / cleanups to mv_xor and ioatdma"
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (99 commits)
dma: mv_xor: Fix mis-usage of mmio 'base' and 'high_base' registers
dma: mv_xor: Remove unneeded NULL address check
ioat: fix ioat3_irq_reinit
ioat: kill msix_single_vector support
raid6test: add new corner case for ioatdma driver
ioatdma: clean up sed pool kmem_cache
ioatdma: fix selection of 16 vs 8 source path
ioatdma: fix sed pool selection
ioatdma: Fix bug in selftest after removal of DMA_MEMSET.
dmatest: verbose mode
dmatest: convert to dmaengine_unmap_data
dmatest: add a 'wait' parameter
dmatest: add basic performance metrics
dmatest: add support for skipping verification and random data setup
dmatest: use pseudo random numbers
dmatest: support xor-only, or pq-only channels in tests
dmatest: restore ability to start test at module load and init
dmatest: cleanup redundant "dmatest: " prefixes
dmatest: replace stored results mechanism, with uniform messages
Revert "dmatest: append verify result to results"
...
We should not be using jump labels before they were initialized. Push back
the callback to until after jump label initialization.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
For all uapi headers, need use "_UAPI" prefix for its guard macro
(which will be stripped by "scripts/headers_installer.sh").
Also remove redundant files (bitsperlong.h, errno.h, fcntl.h, ioctl.h,
ioctls.h, ipcbuf.h, kvm_para.h, mman.h, poll.h, resource.h, siginfo.h,
statfs.h, and unistd.h) which are already in Kbuild.
Also be sure that all "#endif" only have one empty line above, and each
file has guard macro.
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
This patch fixes following error (for big kernels):
---8<---
arch/avr32/boot/u-boot/head.o: In function `no_tag_table':
(.init.text+0x44): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `panic' defined in .text.unlikely section in kernel/built-in.o
arch/avr32/kernel/built-in.o: In function `bad_return':
(.ex.text+0x236): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `panic' defined in .text.unlikely section in kernel/built-in.o
--->8---
It comes up when the kernel increases and 'panic()' is too far away to fit in
the +/- 2MiB range. Which in turn issues from the 21-bit displacement in
'br{cond4}' mnemonic which is one of the two ways to do jumps (rjmp has just
10-bit displacement and therefore a way smaller range). This fact was stated
before in 8d29b7b9f81d6b83d869ff054e6c189d6da73f1f.
One solution to solve this is to add a local storage for the symbol address
and just load the $pc with that value.
Signed-off-by: Andreas Bießmann <andreas@biessmann.de>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: stable@vger.kernel.org
Before the CRT was (fully) set up in kernel_entry (bss cleared before in
_start, but also not before jump to panic() in no_tag_table case).
This patch fixes this up to have a fully working CRT when branching to panic()
in no_tag_table.
Signed-off-by: Andreas Bießmann <andreas@biessmann.de>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: stable@vger.kernel.org
Break SOCK_NONBLOCK out to its own asm-file as other arches do. This
fixes build errors with auditd and probably other packages.
Signed-off-by: Helge Deller <deller@gmx.de>
gcc (4.8.x) creates wrong code when the pa_memcpy() functions are
inlined. Especially in 32bit builds it calculates wrong return values
if we encounter a fault during execution of the memcpy.
Signed-off-by: Helge Deller <deller@gmx.de>
This reverts commit 63379c135331c724d40a87b98eb62d2122981341.
It broke userspace and adding more checking is not needed.
Even checking if a syscall would access memory in page zero doesn't
makes sense since it may lead to some syscalls returning -EFAULT
where we would return other error codes on other platforms.
In summary, just drop this change and return to always return 1.
Signed-off-by: Helge Deller <deller@gmx.de>
* Support for Perf from Mischa
* Enabling GPIO/Pinctrl drivers for Abilis TB10x platform
* New defconfig for buildroot
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Merge tag 'arc-v3.13-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull second set of ARC changes from Vineet Gupta:
- Support for Perf from Mischa
- Enabling GPIO/Pinctrl drivers for Abilis TB10x platform
- New defconfig for buildroot
* tag 'arc-v3.13-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: [plat-arcfpga] Add defconfig without initramfs location
ARC: perf: ARC 700 PMU doesn't support sampling events
ARC: Add documentation on DT binding for ARC700 PMU
ARC: Add perf support for ARC700 cores
ARC: [TB10x] Updates for GPIO and pinctrl
Pull second set of s390 patches from Martin Schwidefsky:
"The handling of the PCI hotplug notifications has been improved, the
zfcp dumper can now detect the HSA size dynamically and the default
install kernel has been changed to the compressed bzImage. And two
bug-fixes for scm and 3720"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pci: implement hotplug notifications
s390/scm_block: do not hide eadm subchannel dependency
s390/sclp: Consolidate early sclp init calls to sclp_early_detect()
s390/sclp: Move early code from sclp_cmd.c to sclp_early.c
s390/sclp: Determine HSA size dynamically for zfcpdump
s390/sclp: Move declarations for sclp_sdias into separate header file
s390/pci: implement pcibios_remove_bus
s390/pci: improve handling of bus resources
s390/3270: fix missing device_destroy() call
s390/boot: Install bzImage as default kernel image
Pull UML changes from Richard Weinberger:
"This pile contains a nice defconfig cleanup, a rewritten stack
unwinder and various cleanups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Remove unused declarations from <as-layout.h>
um: remove used STDIO_CONSOLE Kconfig param
um/vdso: add .gitignore for a couple of targets
arch/um: make it work with defconfig and x86_64
um: Make kstack_depth_to_print conform to arch/x86
um: Get rid of thread_struct->saved_task
um: Make stack trace reliable against kernel mode faults
um: Rewrite show_stack()
Pull x86 fix from Ingo Molnar:
"A modular build fix for certain .config's"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Export 'boot_cpu_physical_apicid' to modules
Pull irq cleanups from Ingo Molnar:
"This is a multi-arch cleanup series from Thomas Gleixner, which we
kept to near the end of the merge window, to not interfere with
architecture updates.
This series (motivated by the -rt kernel) unifies more aspects of IRQ
handling and generalizes PREEMPT_ACTIVE"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
preempt: Make PREEMPT_ACTIVE generic
sparc: Use preempt_schedule_irq
ia64: Use preempt_schedule_irq
m32r: Use preempt_schedule_irq
hardirq: Make hardirq bits generic
m68k: Simplify low level interrupt handling code
genirq: Prevent spurious detection for unconditionally polled interrupts
Fixes a harmless warning when building for V7M (!MMU):
arch/arm/kernel/traps.c:859:123: warning: 'kuser_init' defined but not used [-Wunused-function]
By making the stub static inline instead of just static.
Fixes: f6f91b0d9fd9 ('ARM: allow kuser helpers to be removed from the vector page')
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Pull watchdog changes from Wim Van Sebroeck:
- addition of MOXA ART watchdog driver (moxart_wdt)
- addition of CSR SiRFprimaII and SiRFatlasVI watchdog driver
(sirfsoc_wdt)
- addition of ralink watchdog driver (rt2880_wdt)
- various fixes and cleanups (__user annotation, ioctl return codes,
removal of redundant of_match_ptr, removal of unnecessary
amba_set_drvdata(), use allocated buffer for usb_control_msg, ...)
- removal of MODULE_ALIAS_MISCDEV statements
- watchdog related DT bindings
- first set of improvements on the w83627hf_wdt driver
* git://www.linux-watchdog.org/linux-watchdog: (26 commits)
watchdog: w83627hf: Use helper functions to access superio registers
watchdog: w83627hf: Enable watchdog device only if not already enabled
watchdog: w83627hf: Enable watchdog only once
watchdog: w83627hf: Convert to watchdog infrastructure
watchdog: omap_wdt: raw read and write endian fix
watchdog: sirf: don't depend on dummy value of CLOCK_TICK_RATE
watchdog: pcwd_usb: overflow in usb_pcwd_send_command()
watchdog: rt2880_wdt: fix return value check in rt288x_wdt_probe()
watchdog: watchdog_core: Fix a trivial typo
watchdog: dw: Enable OF support for DW watchdog timer
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
watchdog: ts72xx_wdt: Propagate return value from timeout_to_regval
watchdog: pcwd_usb: Use allocated buffer for usb_control_msg
watchdog: sp805_wdt: Remove unnecessary amba_set_drvdata()
watchdog: sirf: add watchdog driver of CSR SiRFprimaII and SiRFatlasVI
watchdog: Remove redundant of_match_ptr
watchdog: ts72xx_wdt: cleanup return codes in ioctl
documentation/devicetree: Move DT bindings from gpio to watchdog
watchdog: add ralink watchdog driver
watchdog: Add MOXA ART watchdog driver
...
Pull i2c changes from Wolfram Sang:
- new drivers for exynos5, bcm kona, and st micro
- bigger overhauls for drivers mxs and rcar
- typical driver bugfixes, cleanups, improvements
- got rid of the superfluous 'driver' member in i2c_client struct This
touches a few drivers in other subsystems. All acked.
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (38 commits)
i2c: bcm-kona: fix error return code in bcm_kona_i2c_probe()
i2c: i2c-eg20t: do not print error message in syslog if no ACK received
i2c: bcm-kona: Introduce Broadcom I2C Driver
i2c: cbus-gpio: Fix device tree binding
i2c: wmt: add missing clk_disable_unprepare() on error
i2c: designware: add new ACPI IDs
i2c: i801: Add Device IDs for Intel Wildcat Point-LP PCH
i2c: exynos5: Remove incorrect clk_disable_unprepare
i2c: i2c-st: Add ST I2C controller
i2c: exynos5: add High Speed I2C controller driver
i2c: rcar: fixup rcar type naming
i2c: scmi: remove some bogus NULL checks
i2c: sh_mobile & rcar: Enable the driver on all ARM platforms
i2c: sh_mobile: Convert to clk_prepare/unprepare
i2c: mux: gpio: use reg value for i2c_add_mux_adapter
i2c: mux: gpio: use gpio_set_value_cansleep()
i2c: Include linux/of.h header
i2c: mxs: Fix PIO mode on i.MX23
i2c: mxs: Rework the PIO mode operation
i2c: mxs: distinguish i.MX23 and i.MX28 based I2C controller
...
- A new driver for TI BQ24735 Battery Chargers, courtesy of NVidia.
- Device tree bindings for TWL4030 chips.
- Random fixes and cleanups.
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Merge tag 'for-v3.13' of git://git.infradead.org/battery-2.6
Pull battery updates from Anton Vorontsov:
"Highlights:
- A new driver for TI BQ24735 Battery Chargers, courtesy of NVidia.
- Device tree bindings for TWL4030 chips.
- Random fixes and cleanups"
* tag 'for-v3.13' of git://git.infradead.org/battery-2.6:
pm2301-charger: Remove unneeded NULL checks
twl4030_charger: Add devicetree support
power_supply: Fix documentation for TEMP_*ALERT* properties
max17042_battery: Support regmap to access device's registers
max17042_battery: Use SIMPLE_DEV_PM_OPS
charger-manager : Replace kzalloc to devm_kzalloc and remove uneccessary code
bq2415x_charger: Fix max battery regulation voltage
tps65090-charger: Use "IS_ENABLED(CONFIG_OF)" for DT code
tps65090-charger: Drop devm_free_irq of devm_ allocated irq
power_supply: Add support for bq24735 charger
pm2301-charger: Staticize pm2xxx_charger_die_therm_mngt
pm2301-charger: Check return value of regulator_enable
ab8500-charger: Remove redundant break
ab8500-charger: Check return value of regulator_enable
isp1704_charger: Fix driver to work with changes introduced in v3.5
After merging the final tree, today's linux-next build (sparc64 defconfig)
failed like this:
arch/sparc/mm/init_64.c: In function 'pte_alloc_one':
arch/sparc/mm/init_64.c:2568:9: error: unused variable 'pte' [-Werror=unused-variable]
Caused by the merge between commit 37b3a8ff3e08 ("sparc64: Move from 4MB
to 8MB huge pages") and commit 1ae9ae5f7df7 ("sparc: handle
pgtable_page_ctor() fail") (I had the following merge fix in linux-next,
but it didn't seem to propagate upstream - may have forgotten to point it
out :-().
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit ea1e7ed33708 triggers build regression on sparc64.
include/linux/mm.h:1391:2: error: implicit declaration of function 'pgtable_cache_init' [-Werror=implicit-function-declaration]
arch/sparc/include/asm/pgtable_64.h:978:13: error: conflicting types for 'pgtable_cache_init' [-Werror]
It happens due headers include loop:
<linux/mm.h> -> <asm/pgtable.h> -> <asm/pgtable_64.h> ->
<asm/tlbflush.h> -> <asm/tlbflush_64.h> -> <linux/mm.h>
Let's drop <linux/mm.h> include from asm/tlbflush_64.h.
Build tested with allmodconfig.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Highlights:
* Support for Calxeda ECX-2000 memory controller, from Robert Richter
* Misc Calxeda Highbank drivers and EDAC core cleanups, from Rob Herring
and Robert Richter
* New maintainer for Freescale's MPC85xx EDAC driver: Johannes Thumshirn
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Merge tag 'edac_for_3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
"Following up on last week's discussion, here's my part of the EDAC
pile, highlights in the signed tag.
The last two patches have a date from just now because I've just
applied them to the tree after Johannes sent them to me earlier. I
decided to forward them now because they're trivial.
There's a third one for MPC85xx which adds PCIe error interrupt
support but since it is not so trivial and hasn't seen any linux-next
time, I'm deferring it to 3.14
EDAC update highlights:
- Support for Calxeda ECX-2000 memory controller, from Robert Richter
- Misc Calxeda Highbank drivers and EDAC core cleanups, from Rob
Herring and Robert Richter
- New maintainer for Freescale's MPC85xx EDAC driver: Johannes
Thumshirn"
* tag 'edac_for_3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
edac/85xx: Remove mpc85xx_pci_err_remove
EDAC: Add edac-mpc85xx driver to MAINTAINERS
edac, highbank: Moving error injection to sysfs for edac
edac, highbank: Add MAINTAINERS entry
edac: Unify reporting of device info for device, mc and pci
edac, highbank: Improve and unify naming
edac, highbank: Add Calxeda ECX-2000 support
ARM: dts: calxeda: move memory-controller node out of ecx-common.dtsi
edac, highbank: Fix interrupt setup of mem and l2 controller
Core:
- Improve runtime PM support, remove mmc_{suspend,resume}_host().
- Add MMC_CAP_RUNTIME_RESUME, for delaying MMC resume until we're
outside of the resume sequence (in runtime_resume) to decrease
system resume time.
Drivers:
- dw_mmc: Support HS200 mode.
- sdhci-eshdc-imx: Support SD3.0 SDR clock tuning, DDR on IMX6.
- sdhci-pci: Add support for Intel Clovertrail and Merrifield.
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Merge tag 'mmc-updates-for-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball:
"MMC highlights for 3.13:
Core:
- Improve runtime PM support, remove mmc_{suspend,resume}_host().
- Add MMC_CAP_RUNTIME_RESUME, for delaying MMC resume until we're
outside of the resume sequence (in runtime_resume) to decrease
system resume time.
Drivers:
- dw_mmc: Support HS200 mode.
- sdhci-eshdc-imx: Support SD3.0 SDR clock tuning, DDR on IMX6.
- sdhci-pci: Add support for Intel Clovertrail and Merrifield"
* tag 'mmc-updates-for-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (108 commits)
mmc: wbsd: Silence compiler warning
mmc: core: Silence compiler warning in __mmc_switch
mmc: sh_mmcif: Convert to clk_prepare|unprepare
mmc: sh_mmcif: Convert to PM macros when defining dev_pm_ops
mmc: dw_mmc: exynos: Revert the sdr_timing assignment
mmc: sdhci: Avoid needless loop while handling SDIO interrupts in sdhci_irq
mmc: core: Add MMC_CAP_RUNTIME_RESUME to resume at runtime_resume
mmc: core: Improve runtime PM support during suspend/resume for sd/mmc
mmc: core: Remove redundant mmc_power_up|off at runtime callbacks
mmc: Don't force card to active state when entering suspend/shutdown
MIPS: db1235: Don't use MMC_CLKGATE
mmc: core: Remove deprecated mmc_suspend|resume_host APIs
mmc: mmci: Move away from using deprecated APIs
mmc: via-sdmmc: Move away from using deprecated APIs
mmc: tmio: Move away from using deprecated APIs
mmc: sh_mmcif: Move away from using deprecated APIs
mmc: sdricoh_cs: Move away from using deprecated APIs
mmc: rtsx: Remove redundant suspend and resume callbacks
mmc: wbsd: Move away from using deprecated APIs
mmc: pxamci: Remove redundant suspend and resume callbacks
...
On CSR SiRFprimaII and SiRFatlasVI, the 6th timer can act as a watchdog
timer when the Watchdog mode is enabled.
watchdog occur when TIMER watchdog counter matches the value software
pre-set, when this event occurs, the effect is the same as the system
software reset.
Signed-off-by: Xianglong Du <Xianglong.Du@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Cc: Romain Izard <romain.izard.pro@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
_end is used, but it's already provided by <asm/sections.h>, so use that.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
Signed-off-by: Richard Weinberger <richard@nod.at>
This removes the STDIO_CONSOLE Kconfig parameter which
is defined but no longer used anywhere in the makefiles and source code.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
arch/um/defconfig only lists one default configuration, and that applies
only to the i386 architecture. Replace it with two minimal
configuration files generated using `make savedefconfig`:
i386_defconfig and x86_64_defconfig
The build scripts now require two updates:
1. um's Kconfig (arch/x86/um/Kconfig) should specify an ARCH_DEFCONFIG
section explicitly pointing to these scripts if the required
variables are set. Take care to remove the DEFCONFIG_LIST section
defined in the included file arch/um/Kconfig.common.
2. um's Makefile (arch/um/Makefile) should set KBUILD_DEFCONFIG properly
for the top-level Makefile to pick up. Copy the logic in
arch/x86/Makefile to properly pick the defconfig file depending on
the actual architecture; except we're working with $SUBARCH here,
instead of $ARCH.
Now, you can do:
$ ARCH=um make defconfig
$ ARCH=um make
and successfully build User-Mode Linux on an x86_64 box in default
configuration.
Cc: Richard Weinberger <richard@nod.at>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
As UML uses an alternative signal stack we cannot use
the current stack pointer for stack dumping if UML itself
dies by SIGSEGV. To bypass this issue we save regs taken
from mcontext in our segv handler into thread_struct and
use these regs to obtain the stack pointer in show_stack().
Signed-off-by: Richard Weinberger <richard@nod.at>
Currently on UML stack traces are not very reliable and both
x86 and x86_64 have their on implementations.
This patch unifies both and adds support to outline unreliable
functions calls.
Signed-off-by: Richard Weinberger <richard@nod.at>
Using virt_to_phys on percpu mappings is horribly wrong as it may be
backed by vmalloc. Introduce kvm_kaddr_to_phys which translates both
types of valid kernel addresses to the corresponding physical address.
At the same time resolves a typing issue where we were storing the
physical address as a 32 bit unsigned long (on arm), truncating the
physical address for addresses above the 4GB limit. This caused
breakage on Keystone.
Cc: <stable@vger.kernel.org> [3.10+]
Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Introduced by 3ddc5b46a8e90f3c92 ("kernel-wide: fix missing validations
on __get/__put/__copy_to/__copy_from_user()").
Also fix some other places which could be problematic in a similar way,
although they hadn't been proved so, as far as I can tell.
Cc: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Vince's perf fuzzer uncovered the following issue on Alpha:
Unable to handle kernel paging request at virtual address fffffbfe4e46a0e8
CPU 0 perf_fuzzer(1278): Oops 0
pc = [<fffffc000031fbc0>] ra = [<fffffc000031ff54>] ps = 0007 Not tainted
pc is at alpha_perf_event_set_period+0x60/0xf0
ra is at alpha_pmu_enable+0x1a4/0x1c0
v0 = 0000000000000000 t0 = 00000000000fffff t1 = fffffc007b3f5800
t2 = fffffbff275faa94 t3 = ffffffffc9b9bd89 t4 = fffffbfe4e46a098
t5 = 0000000000000020 t6 = fffffbfe4e46a0b8 t7 = fffffc007f4c8000
s0 = 0000000000000000 s1 = fffffc0001b0c018 s2 = fffffc0001b0c020
s3 = fffffc007b3f5800 s4 = 0000000000000001 s5 = ffffffffc9b9bd85
s6 = 0000000000000001
a0 = 0000000000000006 a1 = fffffc007b3f5908 a2 = fffffbfe4e46a098
a3 = 00000005000108c0 a4 = 0000000000000000 a5 = 0000000000000000
t8 = 0000000000000001 t9 = 0000000000000001 t10= 0000000027829f6f
t11= 0000000000000020 pv = fffffc000031fb60 at = fffffc0000950900
gp = fffffc0000940900 sp = fffffc007f4cbca8
Disabling lock debugging due to kernel taint
Trace:
[<fffffc000031ff54>] alpha_pmu_enable+0x1a4/0x1c0
[<fffffc000039f4e8>] perf_pmu_enable+0x48/0x60
[<fffffc00003a0d6c>] __perf_install_in_context+0x15c/0x230
[<fffffc000039d1f0>] remote_function+0x80/0xa0
[<fffffc00003a0c10>] __perf_install_in_context+0x0/0x230
[<fffffc000037b7e4>] smp_call_function_single+0x1b4/0x1d0
[<fffffc000039bb70>] task_function_call+0x60/0x80
[<fffffc00003a0c10>] __perf_install_in_context+0x0/0x230
[<fffffc000039bb44>] task_function_call+0x34/0x80
[<fffffc000039d3fc>] perf_install_in_context+0x9c/0x150
[<fffffc00003a0c10>] __perf_install_in_context+0x0/0x230
[<fffffc00003a5100>] SYSC_perf_event_open+0x360/0xac0
[<fffffc00003110c4>] entSys+0xa4/0xc0
This is due to the raw event encoding being used as an index directly
into the ev67_mapping array, rather than being validated against the
ev67_pmc_event_type enumeration instead. Unlike other architectures,
which allow raw events to propagate into the hardware counters with
little interference, the limited number of events on Alpha and the
strict event <-> counter relationships mean that raw events actually
correspond to the Linux-specific Alpha events, rather than anything
defined by the architecture.
This patch adds a new callback to alpha_pmu_t for validating the raw
event encoding with the Linux event types for the PMU, preventing the
out-of-bounds array access.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Michael Cree <mcree@orcon.net.nz>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
QEMU provides a high-resolution timer and alarm; use this for
a clock source and clock event source when available.
Signed-off-by: Richard Henderson <rth@twiddle.net>
This allows us to get rid of some hacky code for SMP. Get rid of
some cycle counter hackery that's now handled by generic code via
clocksource + clock_event_device objects.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Don't depend on SMP, just check the number of processors online.
This allows a single distribution kernel to use the clocksource
when run on a single processor machine. Do depend on whether or
not we're using WTINT.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Discontinue use of GENERIC_CMOS_UPDATE; rely on the RTC subsystem.
The marvel platform requires that the rtc only be touched from the
boot cpu. This had been partially implemented with hooks for
get/set_rtc_time, but read/update_persistent_clock were not handled.
Move the hooks from the machine_vec to a special rtc_class_ops struct.
We had read_persistent_clock managing the epoch against which the
rtc hw is based, but this didn't apply to get_rtc_time or set_rtc_time.
This resulted in incorrect values when hwclock(8) gets involved.
Allow the epoch to be set from the kernel command-line, overriding
the autodetection, which is doomed to fail in 2020. Further, by
implementing the rtc ioctl function, we can expose this epoch to
userland.
Elide the alarm functions that RTC_DRV_CMOS implements. This was
highly questionable on Alpha, since the interrupt is used by the
system timer.
Signed-off-by: Richard Henderson <rth@twiddle.net>
