Use the functions introduced in by the previous patch,
suspend_device_irqs(), resume_device_irqs() and check_wakeup_irqs(),
to rework the handling of interrupts during suspend (hibernation) and
resume. Namely, interrupts will only be disabled on the CPU right
before suspending sysdevs, while device drivers will be prevented
from receiving interrupts, with the help of the new helper function,
before their "late" suspend callbacks run (and analogously during
resume).
In addition, since the device interrups are now disabled before the
CPU has turned all interrupts off and the CPU will ACK the interrupts
setting the IRQ_PENDING bit for them, check in sysdev_suspend() if
any wake-up interrupts are pending and abort suspend if that's the
case.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Ingo Molnar <mingo@elte.hu>
* 'x86-stage-3-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (190 commits)
Revert "cpuacct: reduce one NULL check in fast-path"
Revert "x86: don't compile vsmp_64 for 32bit"
x86: Correct behaviour of irq affinity
x86: early_ioremap_init(), use __fix_to_virt(), because we are sure it's safe
x86: use default_cpu_mask_to_apicid for 64bit
x86: fix set_extra_move_desc calling
x86, PAT, PCI: Change vma prot in pci_mmap to reflect inherited prot
x86/dmi: fix dmi_alloc() section mismatches
x86: e820 fix various signedness issues in setup.c and e820.c
x86: apic/io_apic.c define msi_ir_chip and ir_ioapic_chip all the time
x86: irq.c keep CONFIG_X86_LOCAL_APIC interrupts together
x86: irq.c use same path for show_interrupts
x86: cpu/cpu.h cleanup
x86: Fix a couple of sparse warnings in arch/x86/kernel/apic/io_apic.c
Revert "x86: create a non-zero sized bm_pte only when needed"
x86: pci-nommu.c cleanup
x86: io_delay.c cleanup
x86: rtc.c cleanup
x86: i8253 cleanup
x86: kdebugfs.c cleanup
...
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (21 commits)
MIPS: Alchemy: PB1200: use SMC91X platform data.
MIPS: Alchemy: MIPS hazard workarounds are not required.
MIPS: Alchemy: provide cpu feature overrides.
MIPS: Alchemy: unify CPU model constants.
MIPS: Make a needlessly global symbol static in arch/mips/kernel/smp.c
MIPS: Fix global namespace pollution in arch/mips/kernel/smp-up.c
MIPS: Malta: make a needlessly global integer variable static
MIPS: Use BUG_ON() where possible.
MIPS: Convert obsolete irq_desc_t to struct irq_desc
MIPS: Enable GENERIC_HARDIRQS_NO__DO_IRQ for all platforms
MIPS: EMMA2RH: Set UART mapbase
MIPS: EMMA2RH: Use set_irq_chip_and_handler_name
MIPS: EMMA2RH: Use handle_edge_irq() handler for GPIO interrupts
MIPS: Mark Eins: Fix cascading interrupt dispatcher
MIPS: Au1000: convert to using gpiolib
MIPS: Stop using <asm-generic/int-l64.h>.
MIPS: Cavium: Add -Werror
MIPS: Makefile: Add simple make install target.
MIPS: Compat: Zero upper 32-bit of offset_high and offset_low.
MIPS: __raw_spin_lock() may spin forever on ticket wrap.
...
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (180 commits)
powerpc: clean up ssi.txt, add definition for fsl,ssi-asynchronous
powerpc/85xx: Add support for the "socrates" board (MPC8544).
powerpc: Fix bugs introduced by sysfs changes
powerpc: Sanitize stack pointer in signal handling code
powerpc: Add write barrier before enabling DTL flags
powerpc/83xx: Update ranges in gianfar node to match other dts
powerpc/86xx: Move gianfar mdio nodes under the ethernet nodes
powerpc/85xx: Move gianfar mdio nodes under the ethernet nodes
powerpc/83xx: Move gianfar mdio nodes under the ethernet nodes
powerpc/83xx: Add power management support for MPC837x boards
powerpc/mm: Introduce early_init_mmu() on 64-bit
powerpc/mm: Add option for non-atomic PTE updates to ppc64
powerpc/mm: Fix printk type warning in mmu_context_nohash
powerpc/mm: Rename arch/powerpc/kernel/mmap.c to mmap_64.c
powerpc/mm: Merge various PTE bits and accessors definitions
powerpc/mm: Tweak PTE bit combination definitions
powerpc/cell: Fix iommu exception reporting
powerpc/mm: e300c2/c3/c4 TLB errata workaround
powerpc/mm: Used free register to save a few cycles in SW TLB miss handling
powerpc/mm: Remove unused register usage in SW TLB miss handling
...
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (70 commits)
ide: keep track of number of bytes instead of sectors in struct ide_cmd
ide: remove ide_execute_pkt_cmd() (v2)
ide: add ->dma_timer_expiry method and remove ->dma_exec_cmd one (v2)
ide: set hwif->expiry prior to calling [__]ide_set_handler()
ide: use do_rw_taskfile() for ATA_CMD_PACKET commands
ide: pass command to ide_map_sg()
ide: remove ide_end_request()
ide: use ide_end_rq() in ide_complete_rq()
ide: pass number of bytes to complete to ide_complete_rq()
ide: remove BUG() from ide_complete_rq()
ide: move rq->errors quirk out from ide_end_request()
ide: pass error value to ide_complete_rq()
ide: sanitize ide_end_rq()
ide: add ide_end_rq() (v2)
ide: make ide_special_rq() BUG() on unknown requests
ide: sanitize ide_finish_cmd()
ide: use ide_complete_cmd() for REQ_UNPARK_HEADS
ide: use ide_complete_cmd() for head unload commands
ide: task_error() -> task_error_cmd()
ide: unify exit paths in task_pio_intr()
...
Some Phytec cameras have a I2C GPIO expander which allows it to
switch between different sensor bus widths. This was previously
handled in the camera driver. Since handling of this switch
varies on several boards the cameras are used on, the board
support seems a better place to handle the switch
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
All soc-camera camera and host drivers must specify supported data signal
polarity, after all drivers are fixed, we'll add a suitable test to
soc_camera_bus_param_compatible().
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add platform data for the smc91x on the PB1200/DB1200, and remove the
now unused AU1X00 entry in smc91x.h.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
The Alchemy manuals state:
"All pipeline hazards and dependencies are enforced by hardware interlocks
so that any sequence of instructions is guaranteed to execute correctly.
Therefore, it is not necessary to pad legacy MIPS hazards (such as
load delay slots and coprocessor accesses) with NOPs."
Run-tested on Au12x0, without any ill effects.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Add cpu feature override constants tailored for all Alchemy variants
currently in existence.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
create mode 100644 arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
This patch removes the various CPU_AU1??? model constants in favor of
a single CPU_ALCHEMY one.
All currently existing Alchemy models are identical in terms of cpu
core and cache size/organization. The parts of the mips kernel which
need to know the exact CPU revision extract it from the c0_prid register
already; and finally nothing else in-tree depends on those any more.
Should a new variant with slightly different "company options" and/or
"processor revision" bits in c0_prid appear, it will be supported
immediately (minus an exact model string in cpuinfo).
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The variable cpu_callin_map is needlessly defined global, so let's
make it static now.
Build-tested using malta_defconfig.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The following symbols in arch/mips/kernel/smp-up.c are needlessly
defined global:
up_send_ipi_single()
up_init_secondary()
up_smp_finish()
up_cpus_done()
up_boot_secondary()
up_smp_setup()
up_prepare_cpus()
This patch makes the symbols static.
Build-tested using malta_defconfig.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The variable `mips_revision_corid' is needlessly defined global in
arch/mips/mti-malta/malta-init.c, and this patch makes it static.
Build-tested with malta_defconfig.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Impact: cleanup
Convert the last remaining users to struct irq_desc.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fix two remaining set_irq_chip_and_handler() users which are encourated
to migrate to set_irq_chip_and_handler_name().
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
EMMA's GPIO interrupts are latched by GPIO interrupt status register.
In this case, we're encouraged to use handle_edge_irq() handler.
The following changes are made along with replacing set_irq_chip() with
set_irq_chip_and_handler_name(,,handle_edge_irq,"edge"):
* Fix emma2rh_gpio_irq_ack not to disable interrupts
With handle_edge_irq(), we're not expected to disable interrupts
when chip->ack is served, so fix it accordingly. We also add a new
emma2rh_gpio_irq_mask_ack() for chip->mask_ack operation, instead.
* Remove emma2rh_gpio_irq_end(), as chip->end is no longer served.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch converts the GPIO board code to use gpiolib.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Through sys_llseek() arguably should do exactly that it doesn't which
means llseek(2) will fail for o32 processes if offset_low has bit 31 set.
As suggested by Heiko Carstens.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
If the lock is not acquired and has to spin *and* the second attempt
to acquire the lock fails, the delay time is not masked by the ticket
range mask. If the ticket number wraps around to zero, the result is
that the lock sampling delay is essentially infinite (due to casting
-1 to an unsigned int).
The fix: Always mask the difference between my_ticket and the current
ticket value before calculating the delay.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Impact: cleanup
It's unused, since about 1995. So remove all initialization of it in
preparation for actually removing the field.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Everyone defines it, and only one person uses it
(arch/mips/sgi-ip27/ip27-nmi.c). So just open code it there.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: linux-mips@linux-mips.org
Impact: cleanup
This patch allow us to use KVM hypercalls
Signed-off-by: Matias Zabaljauregui <zabaljauregui at gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Impact: intermittent guest segv/crash fix
I've been seeing random guest bad address crashes and segmentation faults:
bisect led to 4f98a2fee8 (vmscan: split LRU lists into anon & file sets),
but that's a red herring.
It turns out that lguest never hooked up the pte_update/pte_update_defer
calls, so our ptes were not always in sync. After the vmscan commit, the
bug became reproducible; now a fsck in a 64MB guest causes reproducible
pagetable corruption.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: jeremy@xensource.com
Cc: virtualization@lists.osdl.org
Cc: stable@kernel.org
Modern versions of gcc have a better range of ColdFire optimization
switches for the vairous ColdFire family members. Use these when we can.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Hypervisor versions older than version 1.6.1 cannot handle
leaving the profile counter overflow interrupt chirping
when the system does a soft reset.
So use a reboot notifier to shut off the NMI watchdog.
Signed-off-by: David S. Miller <davem@davemloft.net>
I get random oopses on my Kirkwood board at startup when L2 cache is
enabled. FYI I'm using Marvell uboot version 3.4.16
Each boot produces the same oops, but anything that changes the kernel
size (even only changing initramfs) makes the oops different.
I noticed that nothing invalidates the L2 cache before enabling it,
doing so fixes my problem.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Impact: ACPI 3 spec compliance, BIOS bug workaround
The ACPI 3 spec added another field to the E820 buffer -- which is
backwards incompatible, since it contains a validity bit.
Furthermore, there has been at least one report of a BIOS which
assumes that the buffer it is pointed at is the same buffer as for the
previous E820 call. Therefore, read the data into a temporary buffer
and copy the standard part of it if and only if the valid bit is set.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Impact: BIOS bugproofing
Since there are BIOSes known to clobber %ebx and %esi for INT 15 E820,
assume there is something out there clobbering %edi and/or %ebp too,
and don't wait for it to fail.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
i2c-core: Some style cleanups
i2c-piix4: Add support for the Broadcom HT1100 chipset
i2c-piix4: Add support to SB800 SMBus changes
i2c-pca-platform: Use defaults if no platform_data given
i2c-algo-pca: Use timeout for checking the state machine
i2c-algo-pca: Rework waiting for a free bus
i2c-algo-pca: Add PCA9665 support
i2c: Adapt debug macros for KERN_* constants
i2c-davinci: Fix timeout handling
i2c: Adapter timeout is in jiffies
i2c: Set a default timeout value for all adapters
i2c: Add missing KERN_* constants to printks
i2c-algo-pcf: Handle timeout correctly
i2c-algo-pcf: Style cleanups
eeprom/at24: Remove EXPERIMENTAL
i2c-nforce2: Add support for MCP67, MCP73, MCP78S and MCP79
i2c: Clarify which clients are auto-removed
i2c: Let checkpatch shout on users of the legacy model
i2c: Document the different ways to instantiate i2c devices
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (422 commits)
[ARM] 5435/1: fix compile warning in sanity_check_meminfo()
[ARM] 5434/1: ARM: OMAP: Fix mailbox compile for 24xx
[ARM] pxa: fix the bad assumption that PCMCIA sockets always start with 0
[ARM] pxa: fix Colibri PXA300 and PXA320 LCD backlight pins
imxfb: Fix TFT mode
i.MX21/27: remove ifdef CONFIG_FB_IMX
imxfb: add clock support
mxc: add arch_reset() function
clkdev: add possibility to get a clock based on the device name
i.MX1: remove fb support from mach-imx
[ARM] pxa: build arch/arm/plat-pxa/mfp.c only when PXA3xx or ARCH_MMP defined
Gemini: Add support for Teltonika RUT100
Gemini: gpiolib based GPIO support v2
MAINTAINERS: add myself as Gemini architecture maintainer
ARM: Add Gemini architecture v3
[ARM] OMAP: Fix compile for omap2_init_common_hw()
MAINTAINERS: Add myself as Faraday ARM core variant maintainer
ARM: Add support for FA526 v2
[ARM] acorn,ebsa110,footbridge,integrator,sa1100: Convert asm/io.h to linux/io.h
[ARM] collie: fix two minor formatting nits
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
Blackfin arch: be less noisy when gets a gpio conflict after kernel has booted
Blackfin arch: add RSI's definitions to bf514 and bf516
Blackfin arch: add link-time asserts to make sure on-chip regions dont overflow
Blackfin arch: sport spi needs 6 gpio pins
Blackfin arch: add sport-spi related resource stuff to board file
Blackfin arch: Blacklist Hibernate (PM_SUSPEND_MEM) on BF561 as well
Blackfin arch: Privide BF537-STAMP platform data of ADP5520 Multifunction driver
Blackfin arch: enable the platfrom PATA driver with CF Cards
Blackfin arch: clean up sports header file
Blackfin arch: convert BF5{18,27,48}_FAMILY to CONFIG_BF{51,52,54}x
Blackfin arch: bf51x processors also have 8 timers
Blackfin arch: add a check to make sure only Blackfin GPIOs may generate IRQs
Blackfin arch: update default kernel configuration
Blackfin arch: include linux headers that this one uses definitions from fro sport drivers
* 'percpu-cpumask-x86-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (682 commits)
percpu: fix spurious alignment WARN in legacy SMP percpu allocator
percpu: generalize embedding first chunk setup helper
percpu: more flexibility for @dyn_size of pcpu_setup_first_chunk()
percpu: make x86 addr <-> pcpu ptr conversion macros generic
linker script: define __per_cpu_load on all SMP capable archs
x86: UV: remove uv_flush_tlb_others() WARN_ON
percpu: finer grained locking to break deadlock and allow atomic free
percpu: move fully free chunk reclamation into a work
percpu: move chunk area map extension out of area allocation
percpu: replace pcpu_realloc() with pcpu_mem_alloc() and pcpu_mem_free()
x86, percpu: setup reserved percpu area for x86_64
percpu, module: implement reserved allocation and use it for module percpu variables
percpu: add an indirection ptr for chunk page map access
x86: make embedding percpu allocator return excessive free space
percpu: use negative for auto for pcpu_setup_first_chunk() arguments
percpu: improve first chunk initial area map handling
percpu: cosmetic renames in pcpu_setup_first_chunk()
percpu: clean up percpu constants
x86: un-__init fill_pud/pmd/pte
x86: remove vestigial fix_ioremap prototypes
...
Manually merge conflicts in arch/ia64/kernel/irq_ia64.c
Waiting for a free bus now accepts the timeout value in jiffies and does
proper checking using time_before.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Compiling recent 2.6.29-rc kernels for ARM gives me the following warning:
arch/arm/mm/mmu.c: In function 'sanity_check_meminfo':
arch/arm/mm/mmu.c:697: warning: comparison between pointer and integer
This is because commit 3fd9825c42
"[ARM] 5402/1: fix a case of wrap-around in sanity_check_meminfo()"
in 2.6.29-rc5-git4 added a comparison of a pointer with PAGE_OFFSET,
which is an integer.
Fixed by casting PAGE_OFFSET to void *.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jordan Hargrave diagnosed a BIOS clobbering %esi in the E820 call.
That particular BIOS has been fixed, but there is a possibility that
this is responsible for other occasional reports of early boot
failure, and it does not hurt to add %esi to the clobbers.
-stable candidate patch.
Cc: Justin Forbes <jmforbes@linuxtx.org>
Signed-off-by: Michael K Johnson <johnsonm@rpath.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: stable@kernel.org
OMAP34XX_MAILBOX_BASE must be defined both for 24xx and 34xx.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Once the kernel has booted - be less noisy when someone does a modprobe
(and gets a gpio conflict).
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Provide option to use the platfrom PATA driver with CF Cards
on the CF-IDE-NAND Add-On-Card in Common Memory Mode
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
convert BF5{18,27,48}_FAMILY to CONFIG_BF{51,52,54}x as the defines
are redundant in these cases
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Conflicts:
arch/sparc/kernel/time_64.c
drivers/gpu/drm/drm_proc.c
Manual merge to resolve build warning due to phys_addr_t type change
on x86:
drivers/gpu/drm/drm_info.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (166 commits)
Revert "ax25: zero length frame filtering in AX25"
Revert "netrom: zero length frame filtering in NetRom"
cfg80211: default CONFIG_WIRELESS_OLD_REGULATORY to n
mac80211/iwlwifi: move virtual A-MDPU queue bookkeeping to iwlwifi
mac80211: fix aggregation to not require queue stop
mac80211: add skb length sanity checking
mac80211: unify and fix TX aggregation start
mac80211: clean up __ieee80211_tx args
mac80211: rework the pending packets code
mac80211: fix A-MPDU queue assignment
mac80211: rewrite fragmentation
iwlwifi: show current driver status in user readable format
b43: Add BCM4307 PCI-ID
cfg80211: fix locking in nl80211_set_wiphy
mac80211: fix RX path
ath5k: properly drop packets from ops->tx
ar9170: single module build
ath9k: fix dma mapping leak of rx buffer upon rmmod
rt2x00: New USB ID for rt73usb
ath5k: warn and correct rate for unknown hw rate indexes
...
Sparc was missed in commit 2b1c6bd77d
("generic compat_sys_ustat"). We definitely need it, since our
__kernel_ino_t is "unsigned long".
Signed-off-by: David S. Miller <davem@davemloft.net>
The last user of do_pipe is in arch/alpha/, after replacing it with
do_pipe_flags, the do_pipe can be totally dropped.
Signed-off-by: Cheng Renquan <crquan@gmail.com>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Due to a different size of ino_t ustat needs a compat handler, but
currently only x86 and mips provide one. Add a generic compat_sys_ustat
and switch all architectures over to it. Instead of doing various
user copy hacks compat_sys_ustat just reimplements sys_ustat as
it's trivial. This was suggested by Arnd Bergmann.
Found by Eric Sandeen when running xfstests/017 on ppc64, which causes
stack smashing warnings on RHEL/Fedora due to the too large amount of
data writen by the syscall.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This patch removes the following warnings and related ones.
Plus some cosmetics.
arch/ia64/kernel/patch.c:112: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast
arch/ia64/kernel/patch.c:135: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast
arch/ia64/kernel/patch.c:166: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast
arch/ia64/kernel/patch.c:202: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast
arch/ia64/kernel/patch.c:220: warning: passing argument 1 of 'paravirt_fc' makes integer from pointer without a cast
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This patch fixes the following link error with xen_domu_defconfig.
Depending on compiler version, it doesn't link as follows.
So remove const and use __initdata for xen_iosapic_ops.
> arch/ia64/xen/xen_pv_ops.c:878: error: xen_iosapic_ops causes a section type conflict
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
arch/ia64/kernel/irq_ia64.c: In function 'ia64_handle_irq':
arch/ia64/kernel/irq_ia64.c:498: error: 'struct kernel_stat' has no member named 'irqs'
arch/ia64/kernel/irq_ia64.c:500: error: 'struct kernel_stat' has no member named 'irqs'
arch/ia64/kernel/irq_ia64.c: In function 'ia64_process_pending_intr':
arch/ia64/kernel/irq_ia64.c:556: error: 'struct kernel_stat' has no member named 'irqs'
arch/ia64/kernel/irq_ia64.c:558: error: 'struct kernel_stat' has no member named 'irqs'
Fix build breakage due to recent kstat_this_cpu changes in:
d7e51e6689
sparseirq: make some func to be used with genirq
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Compile in the framebuffer device unconditionally to fix pcm038
compilation without framebuffer support.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds arch_reset() function for all mxc platforms.
It also removes (unsused) arch/arm/mach-mx2/system.c file.
This patch has been tested on i.MX1/27/31/35
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The lack of an include file currently breaks compilation of
mx1ads_defconfig. As framebuffer support is not actively used for
mach-imx and the whole architecture will be replaced by mach-mx1
soon, just remove fb support.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Remove superfluous <asm/macints.h> include.
* No need to re-define in/out*() macros as they are no longer used
by m68k host drivers.
* readl() and writel() are not used by core IDE code.
* Use raw_*_swapw() directly in {falcon,q40}ide.c and remove
{in,out}sw_swapw() macros.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Add ->{get,release}_lock methods to struct ide_port_info
and struct ide_host.
* Convert core IDE code, m68k IDE code and falconide support to use
->{get,release}_lock methods instead of ide_{get,release}_lock().
* Remove IDE_ARCH_LOCK.
v2:
* Build fix from Geert updating ide_{get,release}_lock() callers in
falconide.c.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This micro-optimization is not worth it. Just always check for
existence of ->ack_intr method in ide_intr() and ide_timer_expiry().
v2:
Fix brown-paper-bag bug spotted by David D. Kilzer.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitz@debian.org>
Cc: "David D. Kilzer" <ddkilzer@kilzer.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Supported are Ethernet, serial console, I2C, I2C-based RTC and
temperature sensors, NOR and NAND flash, PCI, USB, CAN and Lime
display controller.
The multiplexing of FPGA interrupts onto PowerPC interrupt lines is
supported through our own fpga_pic interrupt controller driver.
For example the SJA1000 controller is level low sensitive connected to
fpga_pic line 2 and is routed to the second (of three) irq lines to
the CPU:
can@3,100 {
compatible = "philips,sja1000";
reg = <3 0x100 0x80>;
interrupts = <2 2>;
interrupts = <2 8 1>; // number, type, routing
interrupt-parent = <&fpga_pic>;
};
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Dmitry Rakhchev <rda@emcraft.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
As explained by Benjamin Herrenschmidt:
> CPU 0 is running the context, task->mm == task->active_mm == your
> context. The CPU is in userspace happily churning things.
>
> CPU 1 used to run it, not anymore, it's now running fancyfsd which
> is a kernel thread, but current->active_mm still points to that
> same context.
>
> Because there's only one "real" user, mm_users is 1 (but mm_count is
> elevated, it's just that the presence on CPU 1 as active_mm has no
> effect on mm_count().
>
> At this point, fancyfsd decides to invalidate a mapping currently mapped
> by that context, for example because a networked file has changed
> remotely or something like that, using unmap_mapping_ranges().
>
> So CPU 1 goes into the zapping code, which eventually ends up calling
> flush_tlb_pending(). Your test will succeed, as current->active_mm is
> indeed the target mm for the flush, and mm_users is indeed 1. So you
> will -not- send an IPI to the other CPU, and CPU 0 will continue happily
> accessing the pages that should have been unmapped.
To fix this problem, check ->mm instead of ->active_mm, and this
means:
> So if you test current->mm, you effectively account for mm_users == 1,
> so the only way the mm can be active on another processor is as a lazy
> mm for a kernel thread. So your test should work properly as long
> as you don't have a HW that will do speculative TLB reloads into the
> TLB on that other CPU (and even if you do, you flush-on-switch-in should
> get rid of any crap here).
And therefore we should be OK.
Signed-off-by: David S. Miller <davem@davemloft.net>
Convert the UML network device to use internal network device stats.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rusty's patch to change our sysfs access to various registers
to use smp_call_function_single() introduced a whole bunch of
warnings. This fixes them. This version also fixes an actual
bug in here where it did mtspr instead of mfspr when reading
the files
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
On powerpc64 machines running 32-bit userspace, we can get garbage bits in the
stack pointer passed into the kernel. Most places handle this correctly, but
the signal handling code uses the passed value directly for allocating signal
stack frames.
This fixes the issue by introducing a get_clean_sp function that returns a
sanitized stack pointer. For 32-bit tasks on a 64-bit kernel, the stack
pointer is masked correctly. In all other cases, the stack pointer is simply
returned.
Additionally, we pass an 'is_32' parameter to get_sigframe now in order to
get the properly sanitized stack. The callers are know to be 32 or 64-bit
statically.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Currently, we don't enforce any ordering for updates to the lppaca
when enabling dtl logging, so we may end up enabling logging before the
index fields have been established.
This change adds a smp_wmb() before doing the actual enable.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/sparc/kernel/time_64.c: In function ‘timer_interrupt’:
arch/sparc/kernel/time_64.c:732: error: ‘struct kernel_stat’ has no member named ‘irqs’
make[1]: *** [arch/sparc/kernel/time_64.o] Error 1
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: irq_node.handler() should return irqreturn_t
m68k: section mismatch fixes: Atari SCSI
m68k: section mismatch fixes: DMAsound for Atari
MAINTAINERS: Replace dead link to m68k CVS repository by link to new git repository
m68k: mac - Add SWIM floppy support
m68k: mac - Add a new entry in mac_model to identify the floppy controller type.
m68k: Add install target
Impact: scan more peer root buses even acpi is used
Move pci_bios_fixup_peer_bridges out of pci_legacy_init and into
pci_subsys_init. This allows pci_bios_fixup_peer_bridges to be called
even pci_apci_init is driving PCI initialization.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (32 commits)
x86: disable __do_IRQ support
sparseirq, powerpc/cell: fix unused variable warning in interrupt.c
genirq: deprecate obsolete typedefs and defines
genirq: deprecate __do_IRQ
genirq: add doc to struct irqaction
genirq: use kzalloc instead of explicit zero initialization
genirq: make irqreturn_t an enum
genirq: remove redundant if condition
genirq: remove unused hw_irq_controller typedef
irq: export remove_irq() and setup_irq() symbols
irq: match remove_irq() args with setup_irq()
irq: add remove_irq() for freeing of setup_irq() irqs
genirq: assert that irq handlers are indeed running in hardirq context
irq: name 'p' variables a bit better
irq: further clean up the free_irq() code flow
irq: refactor and clean up the free_irq() code flow
irq: clean up manage.c
irq: use GFP_KERNEL for action allocation in request_irq()
kernel/irq: fix sparse warning: make symbol static
irq: optimize init_kstat_irqs/init_copy_kstat_irqs
...
* 'sched-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (46 commits)
sched: Add comments to find_busiest_group() function
sched: Refactor the power savings balance code
sched: Optimize the !power_savings_balance during fbg()
sched: Create a helper function to calculate imbalance
sched: Create helper to calculate small_imbalance in fbg()
sched: Create a helper function to calculate sched_domain stats for fbg()
sched: Define structure to store the sched_domain statistics for fbg()
sched: Create a helper function to calculate sched_group stats for fbg()
sched: Define structure to store the sched_group statistics for fbg()
sched: Fix indentations in find_busiest_group() using gotos
sched: Simple helper functions for find_busiest_group()
sched: remove unused fields from struct rq
sched: jiffies not printed per CPU
sched: small optimisation of can_migrate_task()
sched: fix typos in documentation
sched: add avg_overlap decay
x86, sched_clock(): mark variables read-mostly
sched: optimize ttwu vs group scheduling
sched: TIF_NEED_RESCHED -> need_reshed() cleanup
sched: don't rebalance if attached on NULL domain
...
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (81 commits)
[S390] remove duplicated #includes
[S390] cpumask: use mm_cpumask() wrapper
[S390] cpumask: Use accessors code.
[S390] cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.
[S390] cpumask: remove cpu_coregroup_map
[S390] fix clock comparator save area usage
[S390] Add hwcap flag for the etf3 enhancement facility
[S390] Ensure that ipl panic notifier is called late.
[S390] fix dfp elf hwcap/facility bit detection
[S390] smp: perform initial cpu reset before starting a cpu
[S390] smp: fix memory leak on __cpu_up
[S390] ipl: Improve checking logic and remove switch defaults.
[S390] s390dbf: Remove needless check for NULL pointer.
[S390] s390dbf: Remove redundant initilizations.
[S390] use kzfree()
[S390] BUG to BUG_ON changes
[S390] zfcpdump: Prevent zcore from beeing built as a kernel module.
[S390] Use csum_partial in checksum.h
[S390] cleanup lowcore.h
[S390] eliminate ipl_device from lowcore
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1750 commits)
ixgbe: Allow Priority Flow Control settings to survive a device reset
net: core: remove unneeded include in net/core/utils.c.
e1000e: update version number
e1000e: fix close interrupt race
e1000e: fix loss of multicast packets
e1000e: commonize tx cleanup routine to match e1000 & igb
netfilter: fix nf_logger name in ebt_ulog.
netfilter: fix warning in ebt_ulog init function.
netfilter: fix warning about invalid const usage
e1000: fix close race with interrupt
e1000: cleanup clean_tx_irq routine so that it completely cleans ring
e1000: fix tx hang detect logic and address dma mapping issues
bridge: bad error handling when adding invalid ether address
bonding: select current active slave when enslaving device for mode tlb and alb
gianfar: reallocate skb when headroom is not enough for fcb
Bump release date to 25Mar2009 and version to 0.22
r6040: Fix second PHY address
qeth: fix wait_event_timeout handling
qeth: check for completion of a running recovery
qeth: unregister MAC addresses during recovery.
...
Manually fixed up conflicts in:
drivers/infiniband/hw/cxgb3/cxio_hal.h
drivers/infiniband/hw/nes/nes_nic.c
* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (113 commits)
KVM: VMX: Don't allow uninhibited access to EFER on i386
KVM: Correct deassign device ioctl to IOW
KVM: ppc: e500: Fix the bug that KVM is unstable in SMP
KVM: ppc: e500: Fix the bug that mas0 update to wrong value when read TLB entry
KVM: Fix missing smp tlb flush in invlpg
KVM: Get support IRQ routing entry counts
KVM: fix sparse warnings: Should it be static?
KVM: fix sparse warnings: context imbalance
KVM: is_long_mode() should check for EFER.LMA
KVM: VMX: Update necessary state when guest enters long mode
KVM: ia64: Fix the build errors due to lack of macros related to MSI.
ia64: Move the macro definitions related to MSI to one header file.
KVM: fix kvm_vm_ioctl_deassign_device
KVM: define KVM_CAP_DEVICE_DEASSIGNMENT
KVM: ppc: Add emulation of E500 register mmucsr0
KVM: Report IRQ injection status for MSI delivered interrupts
KVM: MMU: Fix another largepage memory leak
KVM: SVM: set accessed bit for VMCB segment selectors
KVM: Report IRQ injection status to userspace.
KVM: MMU: remove assertion in kvm_mmu_alloc_page
...
commit b5dc7840b3 ("m68k: introduce irq
controller") reverted the return type of struct irq_node.handler() from
irqreturn_t to int. Change it back to irqreturn_t, else it will give a
compiler warning when irqreturn_t is turned into an enum in the near future:
| arch/m68k/kernel/ints.c:231: warning: assignment from incompatible pointer type
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
It allows to read data from a floppy, but not to write to, and to eject the
floppy (useful on our Mac without eject button).
Signed-off-by: Laurent Vivier <Laurent@lvivier.info>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This patch adds a field "floppy_type" which can take the following values:
MAC_FLOPPY_IWM for an IWM based mac
MAC_FLOPPY_SWIM_ADDR1 for a SWIM based mac with controller at VIA1 + 0x1E000
MAC_FLOPPY_SWIM_ADDR2 for a SWIM based mac with controller at VIA1 + 0x16000
MAC_FLOPPY_IOP for an IOP based mac
MAC_FLOPPY_AV for an AV based mac
Signed-off-by: Laurent Vivier <Laurent@lvivier.info>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This patch enables the use of "make install" on m68k architecture
to copy kernel to /boot.
Signed-off-by: Laurent Vivier <Laurent@lvivier.info>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (97 commits)
USB: qcserial: add device id for HP devices
USB: isp1760: Add a delay before reading the SKIPMAP registers in isp1760-hcd.c
USB: allow malformed LANGID descriptors
USB: pxa27x_udc: typo fixes and code cleanups
USB: gadget: gadget zero uses new suspend/resume hooks
USB: gadget: composite device-level suspend/resume hooks
USB: r8a66597-hcd: suspend/resume support
USB: more u32 conversion after transfer_buffer_length and actual_length
USB: Fix cp2101 USB serial device driver termios functions for console use
USB: CP2101 New Device ID
USB: ipaq: handle 4 endpoint devices
USB: S3C: Move usb-control.h to platform include
USB: ohci-hcd: Add ARCH_S3C24XX to the ohci-s3c2410.c glue
USB: pedantic: spelling correction in comment for ch9.h
USB: host: fix sparse warning: Using plain integer as NULL pointer
USB: ohci-s3c2410: fix name of bus clock
USB: ohci-s3c2410: remove <mach/hardware.h> include
USB: serial: rename cp2101 driver to cp210x
USB: CP2101 Reduce Error Logging
USB: CP2101 Support AN205 baud rates
...
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (96 commits)
sh: add support for SMSC Polaris platform
sh: fix the HD64461 level-triggered interrupts handling
sh: sh-rtc wakeup support
sh: sh-rtc invalid time rework
sh: sh-rtc carry interrupt rework
sh: disallow kexec virtual entry
sh: kexec jump: fix for ftrace.
sh: kexec: Drop SR.BL bit toggling.
sh: add kexec jump support
sh: rework kexec segment code
sh: simplify kexec vbr code
sh: Flush only the needed range when unmapping a VMA.
sh: Update debugfs ASID dumping for 16-bit ASID support.
sh: tlb-pteaex: Kill off legacy PTEA updates.
sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores.
sh: sh7763rdp: Change IRQ number for sh_eth of sh7763rdp
sh: espt-giga board support
sh: dma: Make G2 DMA configurable.
sh: dma: Make PVR2 DMA configurable.
sh: Move IRQ multi definition of DMAC to defconfig
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (430 commits)
ALSA: hda - Add quirk for Acer Ferrari 5000
ALSA: hda - Use cached calls to get widget caps and pin caps
ALSA: hda - Don't create empty/single-item input source
ALSA: hda - Fix the wrong pin-cap check in patch_realtek.c
ALSA: hda - Cache pin-cap values
ALSA: hda - Avoid output amp manipulation to digital mic pins
ALSA: hda - Add function id to proc output
ALSA: pcm - Safer boundary checks
ALSA: hda - Detect digital-mic inputs on ALC663 / ALC272
ALSA: sound/ali5451: typo: s/resouces/resources/
ALSA: hda - Don't show the current connection for power widgets
ALSA: Fix wrong pointer to dev_err() in arm/pxa2xx-ac97-lib.c
ASoC: Declare Headset as Mic and Headphone widgets for SDP3430
ASoC: OMAP: N810: Add more jack functions
ASoC: OMAP: N810: Mark not connected input pins
ASoC: Add FLL support for WM8400
ALSA: hda - Don't reset stream at each prepare callback
ALSA: hda - Don't reset BDL unnecessarily
ALSA: pcm - Fix delta calculation at boundary overlap
ALSA: pcm - Reset invalid position even without debug option
...
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (29 commits)
crypto: sha512-s390 - Add missing block size
hwrng: timeriomem - Breaks an allyesconfig build on s390:
nlattr: Fix build error with NET off
crypto: testmgr - add zlib test
crypto: zlib - New zlib crypto module, using pcomp
crypto: testmgr - Add support for the pcomp interface
crypto: compress - Add pcomp interface
netlink: Move netlink attribute parsing support to lib
crypto: Fix dead links
hwrng: timeriomem - New driver
crypto: chainiv - Use kcrypto_wq instead of keventd_wq
crypto: cryptd - Per-CPU thread implementation based on kcrypto_wq
crypto: api - Use dedicated workqueue for crypto subsystem
crypto: testmgr - Test skciphers with no IVs
crypto: aead - Avoid infinite loop when nivaead fails selftest
crypto: skcipher - Avoid infinite loop when cipher fails selftest
crypto: api - Fix crypto_alloc_tfm/create_create_tfm return convention
crypto: api - crypto_alg_mod_lookup either tested or untested
crypto: amcc - Add crypt4xx driver
crypto: ansi_cprng - Add maintainer
...
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: (35 commits)
[CPUFREQ] Prevent p4-clockmod from auto-binding to the ondemand governor.
[CPUFREQ] Make cpufreq-nforce2 less obnoxious
[CPUFREQ] p4-clockmod reports wrong frequency.
[CPUFREQ] powernow-k8: Use a common exit path.
[CPUFREQ] Change link order of x86 cpufreq modules
[CPUFREQ] conservative: remove 10x from def_sampling_rate
[CPUFREQ] conservative: fixup governor to function more like ondemand logic
[CPUFREQ] conservative: fix dbs_cpufreq_notifier so freq is not locked
[CPUFREQ] conservative: amend author's email address
[CPUFREQ] Use swap() in longhaul.c
[CPUFREQ] checkpatch cleanups for acpi-cpufreq
[CPUFREQ] powernow-k8: Only print error message once, not per core.
[CPUFREQ] ondemand/conservative: sanitize sampling_rate restrictions
[CPUFREQ] ondemand/conservative: deprecate sampling_rate{min,max}
[CPUFREQ] powernow-k8: Always compile powernow-k8 driver with ACPI support
[CPUFREQ] Introduce /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_transition_latency
[CPUFREQ] checkpatch cleanups for powernow-k8
[CPUFREQ] checkpatch cleanups for ondemand governor.
[CPUFREQ] checkpatch cleanups for powernow-k7
[CPUFREQ] checkpatch cleanups for speedstep related drivers.
...
define paravirt_dv_serialize_data() and insert it to suppress
false positive warnings.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
implement binary patching optimization for pv_cpu_ops.
With this optimization, indirect call for pv_cpu_ops methods can be
converted into inline execution or direct call.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
add helper functions to support binary patching for paravirt_ops.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Move down __kernel_syscall_via_epc to the end of the page.
We want to paravirtualize only __kernel_syscall_via_epc because
it includes privileged instructions. Its paravirtualization increases
its symbols size.
On the other hand, each paravirtualized gate must have e symbols of
same value and size to native's because the page is mapped to GATE_ADDR
and GATE_ADDR + PERCPU_PAGE_SIZE and vmlinux is linked to those symbols.
Later to have the same symbol size, we pads NOPs at the end of
__kernel_syscall_via_epc. Move it after other functions to keep
symbols of other functions have same values and sizes.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
define xen specific gate page.
At this phase bits in the gate page is same to native.
At the next phase, it will be paravirtualized.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
paravirtualize gate page by allowing each pv_ops instances
to define its own gate page.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
add sched_clock() hook to paravirtualize sched_clock().
ia64 sched_clock() is based on ar.itc which isn't stable
on virtualized environment because vcpu may move around on
pcpus. So it needs paravirtualization.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
paravirtualize ar.itc and ar.itm in order to support save/restore.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This is a preliminary patch to paravirtualizing fsys.S.
compile fsys.S twice one for native and one for xen, and switch
them at run tine.
Later fsys.S will be paravirtualized.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Add two hooks, paravirt_get_fsyscall_table() and
paravirt_get_fsys_bubble_doen() to paravirtualize fsyscall implementation.
This patch just add the hooks fsyscall and don't paravirtualize it.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Rafael J. Wysocki