| Commit message (Collapse) | Author | Age |
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If we encounter an efi_memory_desc_t without EFI_MEMORY_WB set
in ->attribute we currently call set_memory_uc(), which in turn
calls __pa() on a potentially ioremap'd address.
On CONFIG_X86_32 this is invalid, resulting in the following
oops on some machines:
BUG: unable to handle kernel paging request at f7f22280
IP: [<c10257b9>] reserve_ram_pages_type+0x89/0x210
[...]
Call Trace:
[<c104f8ca>] ? page_is_ram+0x1a/0x40
[<c1025aff>] reserve_memtype+0xdf/0x2f0
[<c1024dc9>] set_memory_uc+0x49/0xa0
[<c19334d0>] efi_enter_virtual_mode+0x1c2/0x3aa
[<c19216d4>] start_kernel+0x291/0x2f2
[<c19211c7>] ? loglevel+0x1b/0x1b
[<c19210bf>] i386_start_kernel+0xbf/0xc8
A better approach to this problem is to map the memory region
with the correct attributes from the start, instead of modifying
it after the fact. The uncached case can be handled by
ioremap_nocache() and the cached by ioremap_cache().
Despite first impressions, it's not possible to use
ioremap_cache() to map all cached memory regions on
CONFIG_X86_64 because EFI_RUNTIME_SERVICES_DATA regions really
don't like being mapped into the vmalloc space, as detailed in
the following bug report,
https://bugzilla.redhat.com/show_bug.cgi?id=748516
Therefore, we need to ensure that any EFI_RUNTIME_SERVICES_DATA
regions are covered by the direct kernel mapping table on
CONFIG_X86_64. To accomplish this we now map E820_RESERVED_EFI
regions via the direct kernel mapping with the initial call to
init_memory_mapping() in setup_arch(), whereas previously these
regions wouldn't be mapped if they were after the last E820_RAM
region until efi_ioremap() was called. Doing it this way allows
us to delete efi_ioremap() completely.
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Huang Ying <huang.ying.caritas@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1321621751-3650-1-git-send-email-matt@console-pimps.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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When HPET is operating in RTC mode, the TN_ENABLE bit on timer1
controls whether the HPET or the RTC delivers interrupts to irq8. When
the system goes into suspend, the RTC driver sends a signal to the
HPET driver so that the HPET releases control of irq8, allowing the
RTC to wake the system from suspend. The switchover is accomplished by
a write to the HPET configuration registers which currently only
occurs while servicing the HPET interrupt.
On some systems, I have seen the system suspend before an HPET
interrupt occurs, preventing the write to the HPET configuration
register and leaving the HPET in control of the irq8. As the HPET is
not active during suspend, it does not generate a wake signal and RTC
alarms do not work.
This patch forces the HPET driver to immediately transfer control of
the irq8 channel to the RTC instead of waiting until the next
interrupt event.
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Link: http://lkml.kernel.org/r/20111118153306.GB16319@alberich.amd.com
Tested-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
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If we select a symbol it should have a type declared first
otherwise in some situations the config tools get upset. They
are currently perhaps a bit too resilient which is why this
wasn't noticed initially.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Link: http://lkml.kernel.org/r/20111206132811.4041.32549.stgit@bob.linux.org.uk
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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We currently fail to build on CONFIG_X86_INTEL_MID=y and
CONFIG_X86_MRST unset.
We could build all the bits to make generic MID work if you
picked MID platform alone but that's really silly. Instead use
select and two variables.
This looks a bit daft right now but once we add a Medfield
selection it'll start to look a good deal more sensible.
Reported-by: Ingo Molnar <mingo@elte.hu>
Reported-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Link: http://lkml.kernel.org/r/20111205231433.28811.51297.stgit@bob.linux.org.uk
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: use new generic {enable,disable}_percpu_irq() routines
drivers/net/ethernet/tile: use skb_frag_page() API
asm-generic/unistd.h: support new process_vm_{readv,write} syscalls
arch/tile: fix double-free bug in homecache_free_pages()
arch/tile: add a few #includes and an EXPORT to catch up with kernel changes.
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We provided very similar routines internally, but now we can hook
into the generic framework by supplying our routines as function
pointers in the irq_chip structure instead.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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When freeing the page with this API, the page was "put" twice.
This was only discovered bringing up an MPT fusion controller, which
actually used the API; it hadn't been invoked previously, so the bug
had gone unnoticed.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The empty_zero_page[] export is required for ZERO_PAGE() module references.
The #includes are due to changes in implicit inclusion, and should of
course have been in the sources from the beginning.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
* 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
MAINTAINERS: Update amd-iommu F: patterns
iommu/amd: Fix typo in kernel-parameters.txt
iommu/msm: Fix compile error in mach-msm/devices-iommu.c
Fix comparison using wrong pointer variable in dma debug code
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Fix compile error due to missing <linux/module.h> include.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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With the 3.2-rc kernel, IOMMU 2M pages in KVM works. But when I tried
to use IOMMU 1GB pages in KVM, I encountered an oops and the 1GB page
failed to be used.
The root cause is that 1GB page allocation calls gup_huge_pud() while 2M
page calls gup_huge_pmd. If compound pages are used and the page is a
tail page, gup_huge_pmd() increases _mapcount to record tail page are
mapped while gup_huge_pud does not do that.
So when the mapped page is relesed, it will result in kernel oops
because the page is not marked mapped.
This patch add tail process for compound page in 1GB huge page which
keeps the same process as 2M page.
Reproduce like:
1. Add grub boot option: hugepagesz=1G hugepages=8
2. mount -t hugetlbfs -o pagesize=1G hugetlbfs /dev/hugepages
3. qemu-kvm -m 2048 -hda os-kvm.img -cpu kvm64 -smp 4 -mem-path /dev/hugepages
-net none -device pci-assign,host=07:00.1
kernel BUG at mm/swap.c:114!
invalid opcode: 0000 [#1] SMP
Call Trace:
put_page+0x15/0x37
kvm_release_pfn_clean+0x31/0x36
kvm_iommu_put_pages+0x94/0xb1
kvm_iommu_unmap_memslots+0x80/0xb6
kvm_assign_device+0xba/0x117
kvm_vm_ioctl_assigned_device+0x301/0xa47
kvm_vm_ioctl+0x36c/0x3a2
do_vfs_ioctl+0x49e/0x4e4
sys_ioctl+0x5a/0x7c
system_call_fastpath+0x16/0x1b
RIP put_compound_page+0xd4/0x168
Signed-off-by: Youquan Song <youquan.song@intel.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
ARM: sa1100: fix build error
ARM: OMAP1: recalculate loops per jiffy after dpll1 reprogram
ARM: davinci: dm365 evm: align nand partition table to u-boot
ARM: davinci: da850 evm: change audio edma event queue to EVENTQ_0
ARM: davinci: dm646x evm: wrong register used in setup_vpif_input_channel_mode
ARM: davinci: dm646x does not have a DSP domain
ARM: davinci: psc: fix incorrect offsets
ARM: davinci: psc: fix incorrect mask
ARM: mx28: LRADC macro rename
arm: mx23: recognise stmp378x as mx23
ARM: mxs: fix machines' initializers order
ARM: mxs/tx28: add __initconst for fec pdata
ARM: S3C64XX: Staticise s3c6400_sysclass
ARM: S3C64XX: Add linux/export.h to dev-spi.c
ARM: S3C64XX: Remove extern from definition of framebuffer setup call
MAINTAINERS: Extend Samsung patterns to cover SPI and ASoC drivers
MAINTAINERS: Add linux-samsung-soc mailing list for Samsung
MAINTAINERS: Consolidate Samsung MAINTAINERS
ARM: CSR: PM: fix build error due to undeclared 'THIS_MODULE'
ARM: CSR: fix build error due to new mdesc->dma_zone_size
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arm-eabi-4.4.3-ld:--defsym zreladdr=: syntax error
make[2]: *** [arch/arm/boot/compressed/vmlinux] Error 1
make[1]: *** [arch/arm/boot/compressed/vmlinux] Error 2
make: *** [uImage] Error 2
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
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Otherwise timing is inaccurate, resulting in devices which depend on it,
like omap-keypad, broken.
Tested on Amstrad Delta.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
[tony@atomide.com: removed comment referencing a development branch]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Use the exact value found in omap1_rate_table, otherwise I have been
experiencing issues with correct timekeeping on my Amstrad Delta.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
[tony@atomide.com: removed comment referencing a development branch]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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DPLL1 reprogramming to a different rate is actually blocked inside
omap1_select_table_rate(), resulting in the defalut rate of 60 MHz
always used instead of the one selected in .config. OTOH, in
omap1_defconfig we currently rely on Kconfig options for the supported
MHz rates in case of boards which boot with dpll1 not set correctly by
their boot loaders.
This means that before we allow for reprogramming of dpll1 rate, we
should remove all unsafe clock selections from omap1_defconfig,
otherwise it will stop booting on boards with imperfect boot loaders,
as it would always try to change to 216MHz.
Keep only one safe clock rate per each supported xtal frequency, i.e.
60MHZ dpll1 for 12MHz xtal and 182MHz dpll1 for 13MHz xtal.
BTW, this change goes into the direction of removing all OMAP1 clock
rate options, planned for next merge window.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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60MHz
Commit e9b7086b80c4d9e354f4edc9e280ae85a60df408 (ARM: OMAP: Fix
reprogramming of dpll1 rate) fixed a regression for systems that
did not rely on bootloader set rates.
However, it also introduced a new problem where the rates selected
in .config would not take affect as omap1_select_table_rate
currently refuses to reprogram DPLL1 if it's already initialized.
This was not a problem earlier, as the reprogramming was done
earlier with ck_dpll1_p->rate uninitialized.
Fix this by forcing the reprogramming on systems booting at rates
below 60MHz. Note that the long term fix is to make the rates
SoC specific later on.
Thanks for Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> for figuring
this one out.
Reported-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
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The symbol is not exported and doesn't need to be.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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This is required for the EXPORT_SYMBOL()s the code uses, previously the
header was being included implicitly by another header.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The extern is only useful on prototypes.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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fixes
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Current partition information maintained in kernel does not match with
u-boot, this leads to corruption of u-boot env when we update uImage
from kernel. Patch fixes it to match with u-boot partition information.
Signed-off-by: Shankarmurthy,Akshay <akshay.s@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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On OMAP-L138 platform, EDMA event queue 0 should be used for audio
transfers so that they are not starved by video data moving on event queue 1.
Commit 48519f0ae03bc7e86b3dc93e56f1334d53803770 (ASoC: davinci: let platform
data define edma queue numbers) had a side-effect of changing this behavior
by making the driver actually honor the platform data passed.
Fix this now by passing event queue 0 as the queue to be used for audio
transfers.
Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Cc: <stable@vger.kernel.org> # v2.6.36.x and above
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The function setup_vpif_input_channel_mode() used the VSCLKDIS register
instead of VIDCLKCTL. This meant that when in HD mode videoport channel 0
used a different clock from channel 1.
Clearly a copy-and-paste error.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Cc: stable@kernel.org
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Fix the incorrect classification of DSP clock into a
seperate DSP domain on DM646x.
Per the reference guide (http://www.ti.com/lit/ug/spruep9e/spruep9e.pdf)
there is only one "AlwaysON" power domain on DM6467.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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Seperate PDSTAT and PDCTL registers are defined for
domain 0 and domain 1 where as the code always reads
the domain 0 PDSTAT register and domain 1 PDCTL register.
Fix this issue. While at it, introduce usage of macros
for register masks to improve readability.
Reviewed-by: Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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There are 5 LSB bits defined in PDSTAT and the code
currently uses a mask of 1 bit to check the status.
Use a proper mask per the hardware specification.
While at it, use a #define for the mask to improve
readability.
Reviewed-by: Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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into fixes
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It's a correction of two macro names, renaming them from IRADC to LRADC.
Signed-off-by: Peter Rusko <rusko.peter@prolan.hu>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Adding the machine_is_* line was forgotten when converting mach-stmp378x to
mach-mxs.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: stable@kernel.org
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Initializers of m28evk and stmp378x_devb fixed to be in order
they are called.
reference: http://article.gmane.org/gmane.linux.ports.arm.omap/50721
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel into fixes
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In the new kernel, we will get the following compile error:
arch/arm/mach-prima2/pm.c:141: error: 'THIS_MODULE' undeclared
here (not in a function)
so include module.h head file explicitly
Signed-off-by: Barry Song <baohua.song@csr.com>
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commit 98b0124f0e2b88
"ARM: mach-prima2: move ARM_DMA_ZONE_SIZE to mdesc->dma_zone_size"
causes building error:
arch/arm/mach-prima2/prima2.c:39:19: error: 'SZ_256M' undeclared here
(not in a function)
Signed-off-by: Barry Song <baohua.song@csr.com>
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git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
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When gpio core dynamically allocate gpio number for a port, it starts
from the end of the total range, 0 ~ ARCH_NR_GPIOS. That said, the
earlier a port gets probed, the bigger gpio number it gets assigned.
To match this, the irq_base for gpio should be assigned from
'MXC_GPIO_IRQ_START + ARCH_NR_GPIOS' decreasingly.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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The of_irq_init() expects the callback passed by .data of of_device_id
return 'int' instead of 'void'. This patch fixes it to have
irq_init_cb() return the correct value, and in turn have the secondary
interrupt controller (gpio in this case) initialized properly and also
eliminate the error message 'of_irq_init: children remain, but no
parents' which was overlooked before.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Since 193ab2a6070039e7ee2b9b9bebea754a7c52fd1b, various AT91 boards don't
register at91_udc anymore due to depending on a now non-existing symbol.
Fix the symbol name.
Signed-off-by: Anders Darander <anders@chargestorm.se>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable <stable@vger.kernel.org>
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The conid is supposed to be t0/t1/t2_clk.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable <stable@vger.kernel.org>
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Make it is safe to assign the return value of this function
to u8/u16 variables.
Signed-off-by: Christian Hitz <christian.hitz@aizo.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Wire up process_vm_{read,write}v
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Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
intr_remapping: Fix section mismatch in ir_dev_scope_init()
intel-iommu: Fix section mismatch in dmar_parse_rmrr_atsr_dev()
x86, amd: Fix up numa_node information for AMD CPU family 15h model 0-0fh northbridge functions
x86, AMD: Correct align_va_addr documentation
x86/rtc, mrst: Don't register a platform RTC device for for Intel MID platforms
x86/mrst: Battery fixes
x86/paravirt: PTE updates in k(un)map_atomic need to be synchronous, regardless of lazy_mmu mode
x86: Fix "Acer Aspire 1" reboot hang
x86/mtrr: Resolve inconsistency with Intel processor manual
x86: Document rdmsr_safe restrictions
x86, microcode: Fix the failure path of microcode update driver init code
Add TAINT_FIRMWARE_WORKAROUND on MTRR fixup
x86/mpparse: Account for bus types other than ISA and PCI
x86, mrst: Change the pmic_gpio device type to IPC
mrst: Added some platform data for the SFI translations
x86,mrst: Power control commands update
x86/reboot: Blacklist Dell OptiPlex 990 known to require PCI reboot
x86, UV: Fix UV2 hub part number
x86: Add user_mode_vm check in stack_overflow_check
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northbridge functions
I've received complaints that the numa_node attribute for family
15h model 00-0fh (e.g. Interlagos) northbridge functions shows
-1 instead of the proper node ID.
Correct this with attached quirks (similar to quirks for other
AMD CPU families used in multi-socket systems).
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Frank Arnold <frank.arnold@amd.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/20111202072143.GA31916@alberich.amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Intel MID x86 platforms have a memory mapped virtual RTC
instead. No MID platform have the default ports (and
accessing them may do weird stuff).
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: feng.tang@intel.com
Cc: Feng Tang <feng.tang@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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