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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/bug-fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: Allow PV-OPS kernel to detect whether XSAVE is supported
xen: just completely disable XSAVE
xen/debug: Don't be so verbose with WARN on 1-1 mapping errors.
xen: events: fix error checks in bind_*_to_irqhandler()
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Xen fails to mask XSAVE from the cpuid feature, despite not historically
supporting guest use of XSAVE. However, now that XSAVE support has been
added to Xen, we need to reliably detect its presence.
The most reliable way to do this is to look at the OSXSAVE feature in
cpuid which is set iff the OS (Xen, in this case), has set
CR4.OSXSAVE.
[ Cleaned up conditional a bit. - Jeremy ]
Signed-off-by: Shan Haitao <haitao.shan@intel.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Some (old) versions of Xen just kill the domain if it tries to set any
unknown bits in CR4, so we can't reliably probe for OSXSAVE in
CR4.
Since Xen doesn't support XSAVE for guests at the moment, and no such
support is being worked on, there's no downside in just unconditionally
masking XSAVE support.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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There are valid situations in which this error is not
a warning. Mainly when QEMU maps a guest memory and uses
the VM_IO flag to set the MFNs. For right now make the
WARN be WARN_ONCE. In the future we will:
1). Remove the VM_IO code handling..
2). .. which will also remove this debug facility.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] compile fix for latest binutils
[S390] cio: prevent purging of CCW devices in the online state
[S390] qdio: fix init sequence
[S390] Fix parameter passing for smp_switch_to_cpu()
[S390] oprofile s390: prevent stack corruption
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The latest binutils won't accept the stfl instruction with march=g5
which is the correct behaviour. Unfortunately head.S is assembled
with -march=g5 even if the target cpu is z900 or later. To get
31-bit kernels compiled again the easiest fix is to use the .insn
notation for the stfl instruction in head.S.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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After the execution has been switched to the destination CPU, the target
function is called with the wrong parameter. According to the C calling
convention on s390, the first parameter should be loaded into register 2.
Currently in smp_restart_cpu() it is stored in register 3. To fix this, we
load the parameter into the correct register 2.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Prevent stack corruption by memcpy which copies more bytes then
available at the destination. While at it use the new test_facility
to test for the facility bit.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6
* 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6:
efifb: Add override for 11" Macbook Air 3,1
efifb: Support overriding fields FW tells us with the DMI data.
fb: Reduce priority of resource conflict message
savagefb: Remove obsolete else clause in savage_setup_i2c_bus
savagefb: Set up I2C based on chip family instead of card id
savagefb: Replace magic register address with define
drivers/video/bfin-lq035q1-fb.c: introduce missing kfree
video: s3c-fb: fix checkpatch errors and warning
efifb: support AMD Radeon HD 6490
s3fb: fix Virge/GX2
fbcon: Remove unused 'display *p' variable from fb_flashcursor()
fbdev: sh_mobile_lcdcfb: fix module lock acquisition
fbdev: sh_mobile_lcdcfb: add blanking support
viafb: initialize margins correct
viafb: refresh rate bug collection
sh: mach-ap325rxa: move backlight control code
sh: mach-ecovec24: support for main lcd backlight
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master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
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Move the backlight control code into the appropriate hooks for the LCDC
driver.
Signed-off-by: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Add support for the main LCD backlight that is controlled through the
PTR1 GPIO.
Signed-off-by: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
ARM: arch-shmobile: only run FSI init on respective boards
ARM: arch-shmobile: only run HDMI init on respective boards
ARM: mach-shmobile: Correctly check for CONFIG_MACH_MACKEREL
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If several boards are enabled in the kernel configuration,
fsi_init_pm_clock() functions from board-ap4evb.c
will run on any of them. Prevent this by calling these functions from the
.init_machine() callback instead of using device_initcall().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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If several boards are enabled in the kernel configuration,
hdmi_init_pm_clock() functions from board-ap4evb.c and board-mackerel.c
will run on any of them. Prevent this by calling these functions from the
.init_machine() callback instead of using device_initcall().
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Magnus Damm <damm@opensource.se>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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I made a bit of a thinko when adding Mackerel to the boards
that support zboot using MMCIF.
Reported-by: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: select ARCH_NO_SYSDEV_OPS.
sh: fix build error in board-sh7757lcr.c
sh: landisk: Remove whitespace
sh: landisk: Remove mv_nr_irqs
sh: sh-sci: Fix double initialization by serial_console_setup
serial: sh-sci: prevent setup of uninitialized serial console
dma: shdma: add checking the DMAOR_AE in sh_dmae_err
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Now that everything that was using these interfaces has been converted to
the syscore ops, prevent new code from using the old API.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Fix the problem that the sh_mobile_sdhi.h changed the directory from
"linux/mfd/" to "linux/mmc/".
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
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Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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'timers-fixes-for-linus', 'irq-fixes-for-linus' and 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86-32, fpu: Fix FPU exception handling on non-SSE systems
x86, hibernate: Initialize mmu_cr4_features during boot
x86-32, NUMA: Fix ACPI NUMA init broken by recent x86-64 change
x86: visws: Fixup irq overhaul fallout
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Clean up rebalance_domains() load-balance interval calculation
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86/mrst/vrtc: Fix boot crash in mrst_rtc_init()
rtc, x86/mrst/vrtc: Fix boot crash in rtc_read_alarm()
* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
genirq: Fix cpumask leak in __setup_irq()
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf probe: Fix listing incorrect line number with inline function
perf probe: Fix to find recursively inlined function
perf probe: Fix multiple --vars options behavior
perf probe: Fix to remove redundant close
perf probe: Fix to ensure function declared file
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The sfi_mrtc_array[] only gets initialized when the sfi mrtc
table is parsed, so the vrtc_paddr should be initalized after it
too.
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1302140389-27603-1-git-send-email-feng.tang@intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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On 32bit systems without SSE (that is, they use FSAVE/FRSTOR for FPU
context switches), FPU exceptions in user mode cause Oopses, BUGs,
recursive faults and other nasty things:
fpu exception: 0000 [#1]
last sysfs file: /sys/power/state
Modules linked in: psmouse evdev pcspkr serio_raw [last unloaded: scsi_wait_scan]
Pid: 1638, comm: fxsave-32-excep Not tainted 2.6.35-07798-g58a992b-dirty #633 VP3-596B-DD/VT82C597
EIP: 0060:[<c1003527>] EFLAGS: 00010202 CPU: 0
EIP is at math_error+0x1b4/0x1c8
EAX: 00000003 EBX: cf9be7e0 ECX: 00000000 EDX: cf9c5c00
ESI: cf9d9fb4 EDI: c1372db3 EBP: 00000010 ESP: cf9d9f1c
DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
Process fxsave-32-excep (pid: 1638, ti=cf9d8000 task=cf9be7e0 task.ti=cf9d8000)
Stack:
00000000 00000301 00000004 00000000 00000000 cf9d3000 cf9da8f0 00000001
<0> 00000004 cf9b6b60 c1019a6b c1019a79 00000020 00000242 000001b6 cf9c5380
<0> cf806b40 cf791880 00000000 00000282 00000282 c108a213 00000020 cf9c5380
Call Trace:
[<c1019a6b>] ? need_resched+0x11/0x1a
[<c1019a79>] ? should_resched+0x5/0x1f
[<c108a213>] ? do_sys_open+0xbd/0xc7
[<c108a213>] ? do_sys_open+0xbd/0xc7
[<c100353b>] ? do_coprocessor_error+0x0/0x11
[<c12d5965>] ? error_code+0x65/0x70
Code: a8 20 74 30 c7 44 24 0c 06 00 03 00 8d 54 24 04 89 d9 b8 08 00 00 00 e8 9b 6d 02 00 eb 16 8b 93 5c 02 00 00 eb 05 e9 04 ff ff ff <9b> dd 32 9b e9 16 ff ff ff 81 c4 84 00 00 00 5b 5e 5f 5d c3 c6
EIP: [<c1003527>] math_error+0x1b4/0x1c8 SS:ESP 0068:cf9d9f1c
This usually continues in slight variations until the system is reset.
This bug was introduced by commit 58a992b9cbaf449aeebd3575c3695a9eb5d95b5e:
x86-32, fpu: Rewrite fpu_save_init()
Signed-off-by: Hans Rosenfeld <hans.rosenfeld@amd.com>
Link: http://lkml.kernel.org/r/1302106003-366952-1-git-send-email-hans.rosenfeld@amd.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Restore the initialization of mmu_cr4_features during boot, which was
removed without comment in checkin e5f15b45ddf3afa2bbbb10c7ea34fb32b6de0a0e
x86: Cleanup highmap after brk is concluded
thereby breaking resume from hibernate. This restores previous
functionality in approximately the same place, and corrects the
reading of %cr4 on pre-CPUID hardware (%cr4 exists if and only if
CPUID is supported.)
However, part of the problem is that the hibernate suspend/resume
sequence should manage the save/restore of %cr4 explicitly.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <201104020154.57136.rjw@sisk.pl>
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Commit d8fc3afc49 (x86, NUMA: Move *_numa_init() invocations
into initmem_init()) moved acpi_numa_init() call into NUMA
initmem_init() but forgot to update 32bit NUMA init breaking ACPI
NUMA configuration for 32bit.
acpi_numa_init() call was later moved again to srat_64.c. Match
it by adding the call to get_memcfg_from_srat() in srat_32.c.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
LKML-Reference: <20110404100645.GE1420@mtj.dyndns.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Reported-by: Ian Campbell <Ian.Campbell@eu.citrix.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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* 'kvm-updates/2.6.39' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: move and fix substitue search for missing CPUID entries
KVM: fix XSAVE bit scanning
KVM: Enable async page fault processing
KVM: fix crash on irqfd deassign
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If KVM cannot find an exact match for a requested CPUID leaf, the
code will try to find the closest match instead of simply confessing
it's failure.
The implementation was meant to satisfy the CPUID specification, but
did not properly check for extended and standard leaves and also
didn't account for the index subleaf.
Beside that this rule only applies to CPUID intercepts, which is not
the only user of the kvm_find_cpuid_entry() function.
So fix this algorithm and call it from kvm_emulate_cpuid().
This fixes a crash of newer Linux kernels as KVM guests on
AMD Bulldozer CPUs, where bogus values were returned in response to
a CPUID intercept.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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When KVM scans the 0xD CPUID leaf for propagating the XSAVE save area
leaves, it assumes that the leaves are contigious and stops at the
first zero one. On AMD hardware there is a gap, though, as LWP uses
leaf 62 to announce it's state save area.
So lets iterate through all 64 possible leaves and simply skip zero
ones to also cover later features.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6:
Fix common misspellings
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Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
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Signed-off-by: Matt Evans <matt@ozlabs.au.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Without this, "holes" in the CPU numbering can cause us to
free too many PACAs
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Commit b3df895aebe091b1657 "powerpc/kexec: Add support for FSL-BookE"
introduced the original PPC_STD_MMU_64 checks around the function
crash_kexec_wait_realmode(). Then commit c2be05481f61252
"powerpc: Fix default_machine_crash_shutdown #ifdef botch" changed
the ifdef around the calling site to add a check on SMP, but the
ifdef around the function itself was left unchanged, leaving an
unused function for PPC_STD_MMU_64=y and SMP=n
Rather than have two ifdefs that can get out of sync like this,
simply put the corrected conditional around the function and use
a stub to get rid of one set of ifdefs completely.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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PCIe memory address space is 1:1 mapped with u-boot.
Update dts of Px020RDB i.e. P1020RDB and P2020RDB to match the address map
changes in u-boot.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Fix ftrace
microblaze: Wire up new syscalls
microblaze: Fix level/edge irq sensibility
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- Do not trace idle loop which takes a lot time
- Fix cache handling in generic ftrace code
- Do not trace lib functions ashldi3, ashrdi3, lshrdi3
Functions are called from generic ftrace code which
can't be traced
Signed-off-by: Michal Simek <monstr@monstr.eu>
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Hook up name_to_handle_at, open_by_handle_at, clock_adjtime, syncfs
Signed-off-by: Michal Simek <monstr@monstr.eu>
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Patches:
"microblaze: Convert to new irq function names"
sha (4adc192ec7d977c74c750320f289af9d61c1caca)
and
"microblaze: Use generic show_interrupts()"
sha(9d61c18b25726306c9231428c17db42e3ff29ba7)
should also setup edge/level in irq_set_chip_and_handler_name
name parameter.
Error log:
~ # cat /proc/interrupts
CPU0
2: 2 Xilinx INTC-Xilinx INTC eth0
3: 2 Xilinx INTC-Xilinx INTC eth0
4: 241 Xilinx INTC-Xilinx INTC timer
6: 108 Xilinx INTC-Xilinx INTC serial
Fixed:
~ # cat /proc/interrupts
CPU0
2: 2 Xilinx INTC-level eth0
3: 2 Xilinx INTC-level eth0
4: 238 Xilinx INTC-edge timer
6: 108 Xilinx INTC-level serial
Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
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v2: Fix exchanged edge and level
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Fix some minor typos:
* informations => information
* there own => their own
* these => this
Signed-off-by: Sylvestre Ledru <sylvestre.ledru@scilab.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, UV: Fix kdump reboot
x86, amd-nb: Rename CPU PCI id define for F4
sound: Add delay.h to sound/soc/codecs/sn95031.c
x86, mtrr, pat: Fix one cpu getting out of sync during resume
x86, microcode: Unregister syscore_ops after microcode unloaded
x86: Stop including <linux/delay.h> in two asm header files
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After a crash dump on an SGI Altix UV system the crash kernel
fails to cause a reboot. EFI mode is disabled in the kdump
kernel, so only the reboot_type of BOOT_ACPI works.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: rja@sgi.com
LKML-Reference: <E1Q5Iuo-00013b-UK@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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With increasing number of PCI function ids, add the PCI function
id in the define name instead of its symbolic name in the BKDG
for more clarity. This renames function 4 define.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
LKML-Reference: <20110330183447.GA3668@aftab>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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On laptops with core i5/i7, there were reports that after resume
graphics workloads were performing poorly on a specific AP, while
the other cpu's were ok. This was observed on a 32bit kernel
specifically.
Debug showed that the PAT init was not happening on that AP
during resume and hence it contributing to the poor workload
performance on that cpu.
On this system, resume flow looked like this:
1. BP starts the resume sequence and we reinit BP's MTRR's/PAT
early on using mtrr_bp_restore()
2. Resume sequence brings all AP's online
3. Resume sequence now kicks off the MTRR reinit on all the AP's.
4. For some reason, between point 2 and 3, we moved from BP
to one of the AP's. My guess is that printk() during resume
sequence is contributing to this. We don't see similar
behavior with the 64bit kernel but there is no guarantee that
at this point the remaining resume sequence (after AP's bringup)
has to happen on BP.
5. set_mtrr() was assuming that we are still on BP and skipped the
MTRR/PAT init on that cpu (because of 1 above)
6. But we were on an AP and this led to not reprogramming PAT
on this cpu leading to bad performance.
Fix this by doing unconditional mtrr_if->set_all() in set_mtrr()
during MTRR/PAT init. This might be unnecessary if we are still
running on BP. But it is of no harm and will guarantee that after
resume, all the cpu's will be in sync with respect to the
MTRR/PAT registers.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <1301438292-28370-1-git-send-email-eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
Tested-by: Keith Packard <keithp@keithp.com>
Cc: stable@kernel.org [v2.6.32+]
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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Currently, microcode doesn't unregister syscore_ops after it's
unloaded. So if we modprobe then rmmod microcode, the stale
microcode syscore_ops info will stay on syscore_ops_list.
Later when we're trying to reboot/halt/shutdown the machine, kernel
will panic on syscore_shutdown().
With the patch applied, I can reboot/halt/shutdown my machine successfully.
Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
LKML-Reference: <1301387672-23661-1-git-send-email-dfeng@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Stop including <linux/delay.h> in x86 header files which don't
need it. This will let the compiler complain when this header is
not included by source files when it should, so that
contributors can fix the problem before building on other
architectures starts to fail.
Credits go to Geert for the idea.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: James E.J. Bottomley <James.Bottomley@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
LKML-Reference: <20110325152014.297890ec@endymion.delvare>
[ this also fixes an upstream build bug in drivers/media/rc/ite-cir.c ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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