Michael Chan [Tue, 13 Feb 2007 20:18:46 +0000 (12:18 -0800)]
[TG3]: Update copyright, version, and reldate.
Update version to 3.73.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 13 Feb 2007 20:18:30 +0000 (12:18 -0800)]
[TG3]: Add some tx timeout debug messages.
Print the most useful information during tx timeout to help debug.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 13 Feb 2007 20:18:15 +0000 (12:18 -0800)]
[TG3]: Use constant for PHY register 0x1e.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 13 Feb 2007 20:17:57 +0000 (12:17 -0800)]
[TG3]: Power down 5704 serdes transceiver when shutting down.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 13 Feb 2007 20:17:38 +0000 (12:17 -0800)]
[TG3]: 5906 doesn't need to switch to slower clock.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 13 Feb 2007 20:17:25 +0000 (12:17 -0800)]
[TG3]: 5722/5756 don't need PHY jitter workaround.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 13 Feb 2007 20:17:03 +0000 (12:17 -0800)]
[TG3]: Use lower DMA watermark for 5703.
Set DMA read watermark to 4 on 5703 in PCIX mode. This is needed to
prevent some tx timeouts.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 13 Feb 2007 20:16:45 +0000 (12:16 -0800)]
[TG3]: Save MSI state before suspend.
This fixes the following problem:
http://bugzilla.kernel.org/show_bug.cgi?id=7969
The MSI state needs to be saved during suspend. PCI state saved
during tg3_init_one() does not contain valid MSI state because
MSI hasn't been enabled.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 13 Feb 2007 20:08:18 +0000 (12:08 -0800)]
Revert "[PATCH] Fix d_path for lazy unmounts"
This reverts commit
eb3dfb0cb1f4a44e2d0553f89514ce9f2a9fcaf1.
It causes some strange Gnome problem with dbus-daemon getting stuck, so
we'll revert it until that problem is understood.
Reported by both walt and Greg KH, who both independently git-bisected
the problem to this commit.
Andreas is looking at it.
Reported-by: walt <wa1ter@myrealbox.com>
Reported-by: Greg KH <greg@kroah.com>
Acked-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kumar Gala [Tue, 13 Feb 2007 18:51:38 +0000 (12:51 -0600)]
Merge branch '83xx' into for_paulus
Timur Tabi [Fri, 9 Feb 2007 16:01:50 +0000 (10:01 -0600)]
[POWERPC] 83xx: Updated mpc834x_itx_defconfig
This patch updates the defconfig for the MPC8349E-mITX. In addition to picking
up changes from recent kernels, disables support for e100 (which doesn't ship
with the system), turns off input devices, turns on some I2C support, turns
off HW monitoring (HW not yet supported), turns off OHCI USB (not used), turns
off USB gadget support (HW not yet supported), turns on DOS FS support, and
turns off kernel debugging.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Timur Tabi [Fri, 9 Feb 2007 20:00:36 +0000 (14:00 -0600)]
[POWERPC] 83xx: Add support for MPC8349E-mITX-GP
This patch adds a defconfig and a DTS for the MPC8349E-mITX-GP, a variant of
the MPC8349E-mITX.
USB is disabled because the only USB port is not setup properly by
firmware/kernel
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Kumar Gala [Tue, 13 Feb 2007 18:41:23 +0000 (12:41 -0600)]
Merge branch '85xx' into for_paulus
Andy Fleming [Fri, 9 Feb 2007 23:30:09 +0000 (17:30 -0600)]
[POWERPC] 85xx: Add a defconfig for the 8568 MDS
Add defconfig for the MPC8568 MDS reference board
Signed-off-by: Andrew Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Andy Fleming [Fri, 9 Feb 2007 23:28:31 +0000 (17:28 -0600)]
[POWERPC] 85xx: Add support for the 8568 MDS board
Add support for the MPC8568 MDS reference board
Signed-off-by: Andrew Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Andi Kleen [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] x86-64: Remove mk_pte_phys()
- Convert last user to pfn_pte
- Remove mk_pte_phys
Suggested by Jan Beulich
Signed-off-by: Andi Kleen <ak@suse.de>
Jan Beulich [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] i386: Fix broken CONFIG_COMPAT_VDSO on i386
After updating several machines to 2.6.20, I can't boot anymore the single
one of them that supports the NX bit and is configured as a 32-bit system.
My understanding is that the VDSO changes in 2.6.20-rc7 were not fully
cooked, in that with that config option enabled VDSO_SYM(x) now equals
x, meaning that an address in the fixmap area is now being passed to
apps via AT_SYSINFO. However, the page is mapped with PAGE_READONLY
rather than PAGE_READONLY_EXEC.
I'm not certain whether having app code go through the fixmap area is
intended, but in case it is here is the simple patch that makes things work
again.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Giuliano Procida [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] i386: fix 32-bit ioctls on x64_32
[MTRR] fix 32-bit ioctls on x64_32
Signed-off-by: Giuliano Procida <giuliano.procida@googlemail.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] x86: Unify pcspeaker platform device code between i386/x86-64
Trivial cleanup.
Only change is that it is always compiled in now on x86-64 like on i386.
Signed-off-by: Andi Kleen <ak@suse.de>
Rusty Russell [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] i386: Remove extern declaration from mm/discontig.c, put in header.
Extern declarations belong in headers. Times, they are a'changin.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
===================================================================
Rusty Russell [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] i386: Rename cpu_gdt_descr and remove extern declaration from smpboot.c
When I implemented the DECLARE_PER_CPU(var) macros, I was careful that
people couldn't use "var" in a non-percpu context, by prepending
percpu__. I never considered that this would allow them to overload
the same name for a per-cpu and a non-percpu variable.
It is only one of many horrors in the i386 boot code, but let's rename
the non-perpcu cpu_gdt_descr to early_gdt_descr (not boot_gdt_descr,
that's something else...)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
===================================================================
Rusty Russell [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] i386: Move mce_disabled to asm/mce.h
Allows external actors to disable mce.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
===================================================================
Rusty Russell [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] i386: paravirt unhandled fallthrough
The current code simply calls "start_kernel" directly if we're under a
hypervisor and no paravirt_ops backend wants us, because paravirt.c
registers that as a backend.
This was always a vain hope; start_kernel won't get far without setup.
It's also impossible for paravirt_ops backends which don't sit in the
arch/i386/kernel directory: they can't link before paravirt.o anyway.
Keep it simple: if we pass all the registered paravirt probes, BUG().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
Ralf Baechle [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] x86_64: Wire up compat epoll_pwait
> Which remembers me that I think that MIPS is using the non-compat version
> of sys_epoll_pwait for compat syscalls. But maybe MIPS doesn't need a compat
> syscall for some reason. Dunno.
Which reminds me that x86_64 i386 compat doesn't wire up sys_epoll_pwait ;-)
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] x86: Don't require the vDSO for handling a.out signals
and in other strange binfmts. vDSO is not necessarily mapped there.
Signed-off-by: Andi Kleen <ak@suse.de>
Alan [Tue, 13 Feb 2007 12:26:26 +0000 (13:26 +0100)]
[PATCH] i386: Fix Cyrix MediaGX detection
The old Cyrix 5520 CPU detection code relied upon the PCI layer setup being
done earlier than the CPU setup, which is no longer true. Fortunately we
know that if the processor is a MediaGX we can do type 1 pci config
accesses to check the companion chip. We thus do those directly and from
this find the 5520 and implement the workarounds for the timer problem
Original report from takada@mbf.nifty.com, I sent a proposed patch which
Takara then corrected, tested and sent back to the list on 10th January.
Submitting for merging as it seems to have been missed
AK: Changed to use pci-direct.h and fix warning for !CONFIG_PCI (later
AK: originally from akpm)
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: <takada@mbf.nifty.com>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Andi Kleen [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] i386: Fix warning in cpu initialization
Fix bogus warning
linux/arch/i386/kernel/cpu/transmeta.c:12: warning: ‘cpu_freq’ may be used uninitialized in this function
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] i386: Fix warning in microcode.c
Fix bogus gcc warning
linux/arch/i386/kernel/microcode.c:387: warning: ‘new_mc’ may be used uninitialized in this function
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] x86: Enable NMI watchdog for AMD Family 0x10 CPUs
For i386/x86-64.
Straight forward -- just reuse the Family 0xf code.
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] x86: Add new CPUID bits for AMD Family 10 CPUs in /proc/cpuinfo
Just various new acronyms. The new popcnt bit is in the middle
of Intel space. This looks a little weird, but I've been assured
it's ok.
Also I fixed RDTSCP for i386 which was at the wrong place.
For i386 and x86-64.
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] i386: Remove fastcall in paravirt.[ch]
Not needed because fastcall is always default now
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] x86-64: Fix wrong gcc check in bitops.h
gcc 5.0 will likely not have the constraint problem
Signed-off-by: Andi Kleen <ak@suse.de>
Eric W. Biederman [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] x86-64: survive having no irq mapping for a vector
Occasionally the kernel has bugs that result in no irq being found for a
given cpu vector. If we acknowledge the irq the system has a good chance
of continuing even though we dropped an irq message. If we continue to
simply print a message and not acknowledge the irq the system is likely to
become non-responsive shortly there after.
AK: Fixed compilation for UP kernels
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: "Luigi Genoni" <luigi.genoni@pirelli.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
TAKADA Yoshihito [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] i386: geode configuration fixes
Original code doesn't write back to CCR4 register. This patch reflects a
value of a register.
Cc: Jordan Crouse <jordan.crouse@amd.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Chuck Ebbert [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] i386: add option to show more code in oops reports
Sometimes developers need to see more object code in an oops report,
e.g. when kernel may be corrupted at runtime.
Add the "code_bytes" option for this.
Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Evgeniy Polyakov [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] x86-64: Minor patch for compilation warning in x86_64 signal code
If DEBUG_SIG is enbaled in source code, ia32_signal.c compiles with warning
due to wrong format string. Attached patch fixes that. It is quite minor
update, since by default DEBUG_SIG is not enabled and can not be turned on
without code modification.
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Roland Dreier [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] x86-64: avoid warning message livelock
I've seen my box paralyzed by an endless spew of
rtc: lost some interrupts at 1024Hz.
messages on the serial console. What seems to be happening is that
something real causes an interrupt to be lost and triggers the
message. But then printing the message to the serial console (from
the hpet interrupt handler) takes more than 1/1024th of a second, and
then some more interrupts are lost, so the message triggers again....
Fix this by adding a printk_ratelimit() before printing the warning.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Benjamin Romer [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] x86-64: update IO-APIC dest field to 8-bit for xAPIC
On the Unisys ES7000/ONE system, we encountered a problem where performing
a kexec reboot or dump on any cell other than cell 0 causes the system
timer to stop working, resulting in a hang during timer calibration in the
new kernel.
We traced the problem to one line of code in disable_IO_APIC(), which needs
to restore the timer's IO-APIC configuration before rebooting. The code is
currently using the 4-bit physical destination field, rather than using the
8-bit logical destination field, and it cuts off the upper 4 bits of the
timer's APIC ID. If we change this to use the logical destination field,
the timer works and we can kexec on the upper cells. This was tested on
two different cells (0 and 2) in an ES7000/ONE system.
For reference, the relevant Intel xAPIC spec is kept at
ftp://download.intel.com/design/chipsets/e8501/datashts/
30962001.pdf,
specifically on page 334.
Signed-off-by: Benjamin M Romer <benjamin.romer@unisys.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Robert P. J. Day [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] i386: Remove unused kernel config option X86_XADD
Remove the unused kernel config option X86_XADD, which is unused in any
source or header file.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Bob Picco [Tue, 13 Feb 2007 12:26:25 +0000 (13:26 +0100)]
[PATCH] x86-64: clean up sparsemem memory_present call
Eliminate arch specific memory_present call x86_64 NUMA by utilizing
sparse_memory_present_with_active_regions.
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Jan Beulich [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] i386: entry.S END/ENDPROC annotations
Annotate i386/kernel/entry.S with END/ENDPROC to assist disassemblers and
other analysis tools.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
takada [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] i386: support Classic MediaGXm
I hope to support "classic" MediaGXm in kernel.
The DIR1 register of MediaGXm( or Geode) shows the following values for
identify CPU. For example, My MediaGXm shows 0x42.
We can read National Semiconductor's datasheet without any NDAs.
http://www.national.com/pf/GX/GXLV.html
from datasheets:
DIR1
0x30 - 0x33 GXm rev. 1.0 - 2.3
0x34 - 0x4f GXm rev. 2.4 - 3.x
0x5x GXm rev. 5.0 - 5.4
0x6x GXLV
0x7x (unknow)
0x8x Gx1
In nsc driver of X, accept 0x30 through 0x82. What will 0x7x mean?
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Randy Dunlap [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] i386: avoid gcc extension
setcc() in math-emu is written as a gcc extension statement expression
macro that returns a value. However, it's not used that way and it's not
needed like that, so just make it a inline function so that we
don't use an extension when it's not needed.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
H. Peter Anvin [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] i386: All Transmeta CPUs have constant TSCs
All Transmeta CPUs ever produced have constant-rate TSCs.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Ingo Molnar [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] x86: fix laptop bootup hang in init_acpi()
During kernel bootup, a new T60 laptop (CoreDuo, 32-bit) hangs about
10%-20% of the time in acpi_init():
Calling initcall 0xc055ce1a: topology_init+0x0/0x2f()
Calling initcall 0xc055d75e: mtrr_init_finialize+0x0/0x2c()
Calling initcall 0xc05664f3: param_sysfs_init+0x0/0x175()
Calling initcall 0xc014cb65: pm_sysrq_init+0x0/0x17()
Calling initcall 0xc0569f99: init_bio+0x0/0xf4()
Calling initcall 0xc056b865: genhd_device_init+0x0/0x50()
Calling initcall 0xc056c4bd: fbmem_init+0x0/0x87()
Calling initcall 0xc056dd74: acpi_init+0x0/0x1ee()
It's a hard hang that not even an NMI could punch through! Frustratingly,
adding printks or function tracing to the ACPI code made the hangs go away
...
After some time an additional detail emerged: disabling the NMI watchdog
made these occasional hangs go away.
So i spent the better part of today trying to debug this and trying out
various theories when i finally found the likely reason for the hang: if
acpi_ns_initialize_devices() executes an _INI AML method and an NMI
happens to hit that AML execution in the wrong moment, the machine would
hang. (my theory is that this must be some sort of chipset setup method
doing stores to chipset mmio registers?)
Unfortunately given the characteristics of the hang it was sheer
impossible to figure out which of the numerous AML methods is impacted
by this problem.
As a workaround i wrote an interface to disable chipset-based NMIs while
executing _INI sections - and indeed this fixed the hang. I did a
boot-loop of 100 separate reboots and none hung - while without the patch
it would hang every 5-10 attempts. Out of caution i did not touch the
nmi_watchdog=2 case (it's not related to the chipset anyway and didnt
hang).
I implemented this for both x86_64 and i686, tested the i686 laptop both
with nmi_watchdog=1 [which triggered the hangs] and nmi_watchdog=2, and
tested an Athlon64 box with the 64-bit kernel as well. Everything builds
and works with the patch applied.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Muli Ben-Yehuda [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] x86-64: robustify bad_dma_address handling
- set bad_dma_address explicitly to 0x0
- reserve 32 pages from bad_dma_address and up
- WARN_ON() a driver feeding us bad_dma_address
Thanks to Leo Duran <leo.duran@amd.com> for the suggestion.
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Leo Duran <leo.duran@amd.com>
Cc: Job Mason <jdmason@kudzu.us>
Jeff Garzik [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] x86-64: define dma noncoherent API functions
x86-64 is missing these:
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] x86-64: Don't reserve ROMs
We trust the e820 table, so explicitely reserving ROMs shouldn't
be needed.
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] x86-64: Fix off by one error in IOMMU boundary checking
Should be harmless because there is normally no memory there, but
technically it was incorrect.
Pointed out by Leo Duran
Signed-off-by: Andi Kleen <ak@suse.de>
Zachary Amsden [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] x86-64: x86_64 - Fix FS/GS registers for VT execution
Initialize FS and GS to __KERNEL_DS as well. The actual value of them is not
important, but it is important to reload them in protected mode. At this time,
they still retain the real mode values from initial boot. VT disallows
execution of code under such conditions, which means hardware virtualization
can not be used to boot the kernel on Intel platforms, making the boot time
painfully slow.
This requires moving the GS load before the load of GS_BASE, so just move
all the segments loads there to keep them together in the code.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] x86-64: Unexport __supported_pte_mask
The symbol is needed to manipulate page tables, and modules shouldn't
do that.
Leftover from 2.4, but no in tree module should need it now.
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] x86-64: Check return value of putreg in PTRACE_SETREGS
This means if an illegal value is set for the segment registers there
ptrace will error out now with an errno instead of silently ignoring
it.
Signed-off-by: Andi Kleen <ak@suse.de>
Jack Steiner [Tue, 13 Feb 2007 12:26:24 +0000 (13:26 +0100)]
[PATCH] x86-64: - Ignore long SMI interrupts in clock calibration code - update 1
Add failsafe mechanism to HPET/TSC clock calibration.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Updated to include failsafe mechanism & additional community feedback.
Patch built on latest 2.6.20-rc4-mm1 tree.
Signed-off-by: Andi Kleen <ak@suse.de>
Andreas Herrmann [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] i386: fix size_or_mask and size_and_mask
mtrr: fix size_or_mask and size_and_mask
This fixes two bugs in /proc/mtrr interface:
o If physical address size crosses the 44 bit boundary
size_or_mask is evaluated wrong.
o size_and_mask limits width of physical base
address for an MTRR to be less than 44 bits.
TBD: later patch had one more change, but I think that was bogus.
TBD: need to double check
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Alexey Dobriyan [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] i386: Convert /proc/apm to seqfile
Byte-to-byte identical /proc/apm here.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Josef 'Jeff' Sipek [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] x86-64: Fix preprocessor condition
Old code was legal standard C, but apparently not sparse-C.
Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
Signed-off-by: Andi Kleen <ak@suse.de>
Alexey Dobriyan [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] i386: use smp_call_function_single()
It will execure cpuid only on the cpu we need.
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Alexey Dobriyan [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] i386: use smp_call_function_single()
It will execute rdmsr and wrmsr only on the cpu we need.
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Nicolas Kaiser [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] x86-64: Kconfig typos
Some typos in Kconfig.
Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] i386: Small cleanup to TLB flush code
- Remove outdated comment
- Use cpu_relax() in a busy loop
Signed-off-by: Andi Kleen <ak@suse.de>
Jan Beulich [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] x86-64: remove get_pmd()
Function is dead.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Andi Kleen [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] x86-64: Allow to run a program when a machine check event is detected
When a machine check event is detected (including a AMD RevF threshold
overflow event) allow to run a "trigger" program. This allows user space
to react to such events sooner.
The trigger is configured using a new trigger entry in the
machinecheck sysfs interface. It is currently shared between
all CPUs.
I also fixed the AMD threshold handler to run the machine
check polling code immediately to actually log any events
that might have caused the threshold interrupt.
Also added some documentation for the mce sysfs interface.
Signed-off-by: Andi Kleen <ak@suse.de>
Jan Beulich [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] x86-64: Tighten mce_amd driver MSR reads
while debugging an unrelated problem in Xen, I noticed odd reads from
non-existent MSRs. Having now found time to look why these happen, I
came up with below patch, which
- prevents accessing MCi_MISCj with j > 0 when the block pointer in
MCi_MISC0 is zero
- accesses only contiguous MCi_MISCj until a non-implemented one is
found
- doesn't touch unimplemented blocks in mce_threshold_interrupt at all
- gives names to two bits previously derived from MASK_VALID_HI (it
took me some time to understand the code without this)
The first three items, besides being apparently closer to the spec, should
namely help cutting down on the time mce_threshold_interrupt() takes.
Signed-off-by: Andi Kleen <ak@suse.de>
Jan Beulich [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] x86: simplify notify_page_fault()
Remove all parameters from this function that aren't really variable.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Randy Dunlap [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] x86-64: list x86_64 quilt tree
List x86_64 quilt tree in MAINTAINERS.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andi Kleen <ak@suse.de>
Randy Dunlap [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] x86-64: cleanup Doc/x86_64/ files
Fix typos.
Lots of whitespace changes for readability and consistency.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Venkatesh Pallipadi [Tue, 13 Feb 2007 12:26:23 +0000 (13:26 +0100)]
[PATCH] i386: Handle 32 bit PerfMon Counter writes cleanly in oprofile
Handle these 32 bit perfmon counter MSR writes cleanly in oprofile.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Venkatesh Pallipadi [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] i386: Handle 32 bit PerfMon Counter writes cleanly in i386 nmi_watchdog
Change i386 nmi handler to handle 32 bit perfmon counter MSR writes cleanly.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Venkatesh Pallipadi [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] x86-64: Handle 32 bit PerfMon Counter writes cleanly in x86_64 nmi_watchdog
P6 CPUs and Core/Core 2 CPUs which has 'architectural perf mon' feature,
only supports write of low 32 bits in Performance Monitoring Counters.
Bits 32..39 are sign extended based on bit 31 and bits 40..63 are reserved
and should be zero.
This patch:
Change x86_64 nmi handler to handle this case cleanly.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Glauber de Oliveira Costa [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] x86-64: Use constant instead of raw number in x86_64 ioperm.c
This is a tiny cleanup to increase readability
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Glauber de Oliveira Costa [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] x86-64: Remove fastcall references in x86_64 code
Unlike x86, x86_64 already passes arguments in registers. The use of
regparm attribute makes no difference in produced code, and the use of
fastcall just bloats the code.
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Rohit Seth [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] x86-64: Fix fake numa for x86_64 machines with big IO hole
This patch resolves the issue of running with numa=fake=X on kernel command
line on x86_64 machines that have big IO hole. While calculating the size
of each node now we look at the total hole size in that range.
Previously there were nodes that only had IO holes in them causing kernel
boot problems. We now use the NODE_MIN_SIZE (64MB) as the minimum size of
memory that any node must have. We reduce the number of allocated nodes if
the number of nodes specified on kernel command line results in any node
getting memory smaller than NODE_MIN_SIZE.
This change allows the extra memory to be incremented in NODE_MIN_SIZE
granule and uniformly distribute among as many nodes (called big nodes) as
possible.
[akpm@osdl.org: build fix]
Signed-off-by: David Rientjes <reintjes@google.com>
Signed-off-by: Paul Menage <menage@google.com>
Signed-off-by: Rohit Seth <rohitseth@google.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Rene Herman [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] i386: romsignature/checksum cleanup
Use adding __init to romsignature() (it's only called from probe_roms()
which is itself __init) as an excuse to submit a pedantic cleanup.
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Ingo Molnar [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] i386: improve sched_clock() on i686
Clean up sched_clock() on i686: it will use the TSC if available and falls
back to jiffies only if the user asked for it to be disabled via notsc or
the CPU calibration code didnt figure out the right cpu_khz.
This generally makes the scheduler timestamps more finegrained, on all
hardware. (the current scheduler is pretty resistant against asynchronous
sched_clock() values on different CPUs, it will allow at most up to a jiffy
of jitter.)
Also simplify sched_clock()'s check for TSC availability: propagate the
desire and ability to use the TSC into the tsc_disable flag, previously
this flag only indicated whether the notsc option was passed. This makes
the rare low-res sched_clock() codepath a single branch off a read-mostly
flag.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Stephane Eranian [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] i386: add idle notifier
Add a notifier mechanism to the low level idle loop. You can register a
callback function which gets invoked on entry and exit from the low level idle
loop. The low level idle loop is defined as the polling loop, low-power call,
or the mwait instruction. Interrupts processed by the idle thread are not
considered part of the low level loop.
The notifier can be used to measure precisely how much is spent in useless
execution (or low power mode). The perfmon subsystem uses it to turn on/off
monitoring.
Signed-off-by: stephane eranian <eranian@hpl.hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Adrian Bunk [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] i386: arch/i386/kernel/cpu/mcheck/mce.c should #include <asm/mce.h>
Every file should include the headers containing the prototypes for
it's global functions.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Vivek Goyal [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] generic: Break init() in two parts to avoid MODPOST warnings
o init() is a non __init function in .text section but it calls many
functions which are in .init.text section. Hence MODPOST generates lots
of cross reference warnings on i386 if compiled with CONFIG_RELOCATABLE=y
WARNING: vmlinux - Section mismatch: reference to .init.text:smp_prepare_cpus from .text between 'init' (at offset 0xc0101049) and 'rest_init'
WARNING: vmlinux - Section mismatch: reference to .init.text:migration_init from .text between 'init' (at offset 0xc010104e) and 'rest_init'
WARNING: vmlinux - Section mismatch: reference to .init.text:spawn_ksoftirqd from .text between 'init' (at offset 0xc0101053) and 'rest_init'
o This patch breaks down init() in two parts. One part which can go
in .init.text section and can be freed and other part which has to
be non __init(init_post()). Now init() calls init_post() and init_post()
does not call any functions present in .init sections. Hence getting
rid of warnings.
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Vivek Goyal [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] i386: move startup_32() in text.head section
o Entry startup_32 was in .text section but it was accessing some init
data too and it prompts MODPOST to generate compilation warnings.
WARNING: vmlinux - Section mismatch: reference to .init.data:boot_params from
.text between '_text' (at offset 0xc0100029) and 'startup_32_smp'
WARNING: vmlinux - Section mismatch: reference to .init.data:boot_params from
.text between '_text' (at offset 0xc0100037) and 'startup_32_smp'
WARNING: vmlinux - Section mismatch: reference to
.init.data:init_pg_tables_end from .text between '_text' (at offset
0xc0100099) and 'startup_32_smp'
o Can't move startup_32 to .init.text as this entry point has to be at the
start of bzImage. Hence moved startup_32 to a new section .text.head and
instructed MODPOST to not to generate warnings if init data is being
accessed from .text.head section. This code has been audited.
o SMP boot up code (startup_32_smp) can go into .init.text if CPU hotplug
is not supported. Otherwise it generates more warnings
WARNING: vmlinux - Section mismatch: reference to .init.data:new_cpu_data from
.text between 'checkCPUtype' (at offset 0xc0100126) and 'is486'
WARNING: vmlinux - Section mismatch: reference to .init.data:new_cpu_data from
.text between 'checkCPUtype' (at offset 0xc0100130) and 'is486'
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Zachary Amsden [Tue, 13 Feb 2007 12:26:22 +0000 (13:26 +0100)]
[PATCH] i386: Paravirt debug defaults off
Deliberate register clobber around performance critical inline code is great for
testing, bad to leave on by default. Many people ship with DEBUG_KERNEL turned
on, so stop making DEBUG_PARAVIRT default on.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Zachary Amsden [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] i386: Vmi timer race
Because timer code moves around, and we might eventually move our init to a
late_time_init hook, save and restore IRQs around this code because it is
definitely not interrupt safe.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Zachary Amsden [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] i386: Kprobe rpl fix
Kprobes bugfix for paravirt compatibility - RPL on the CS when inserting
BPs must match running kernel.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
CC: Eric Biederman <ebiederm@xmission.com>
Zachary Amsden [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] i386: Profile pc badness
Profile_pc was broken when using paravirtualization because the
assumption the kernel was running at CPL 0 was violated, causing
bad logic to read a random value off the stack.
The only way to be in kernel lock functions is to be in kernel
code, so validate that assumption explicitly by checking the CS
value. We don't want to be fooled by BIOS / APM segments and
try to read those stacks, so only match KERNEL_CS.
I moved some stuff in segment.h to make it prettier.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Zachary Amsden [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] i386: vMI timer patches
VMI timer code. It works by taking over the local APIC clock when APIC is
configured, which requires a couple hooks into the APIC code. The backend
timer code could be commonized into the timer infrastructure, but there are
some pieces missing (stolen time, in particular), and the exact semantics of
when to do accounting for NO_IDLE need to be shared between different
hypervisors as well. So for now, VMI timer is a separate module.
[Adrian Bunk: cleanups]
Subject: VMI timer patches
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Zachary Amsden [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] i386: vMI backend for paravirt-ops
Fairly straightforward implementation of VMI backend for paravirt-ops.
[Adrian Bunk: some cleanups]
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Zachary Amsden [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] i386: SMP boot hook for paravirt
Add VMI SMP boot hook. We emulate a regular boot sequence and use the same
APIC IPI initiation, we just poke magic values to load into the CPU state when
the startup IPI is received, rather than having to jump through a real mode
trampoline.
This is all that was needed to get SMP to work.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Zachary Amsden [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] i386: iOPL handling for paravirt guests
I found a clever way to make the extra IOPL switching invisible to
non-paravirt compiles - since kernel_rpl is statically defined to be zero
there, and only non-zero rpl kernel have a problem restoring IOPL, as popf
does not restore IOPL flags unless run at CPL-0.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Zachary Amsden [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] i386: paravirt CPU hypercall batching mode
The VMI ROM has a mode where hypercalls can be queued and batched. This turns
out to be a significant win during context switch, but must be done at a
specific point before side effects to CPU state are visible to subsequent
instructions. This is similar to the MMU batching hooks already provided.
The same hooks could be used by the Xen backend to implement a context switch
multicall.
To explain a bit more about lazy modes in the paravirt patches, basically, the
idea is that only one of lazy CPU or MMU mode can be active at any given time.
Lazy MMU mode is similar to this lazy CPU mode, and allows for batching of
multiple PTE updates (say, inside a remap loop), but to avoid keeping some
kind of state machine about when to flush cpu or mmu updates, we just allow
one or the other to be active. Although there is no real reason a more
comprehensive scheme could not be implemented, there is also no demonstrated
need for this extra complexity.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Zachary Amsden [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] MM: page allocation hooks for VMI backend
The VMI backend uses explicit page type notification to track shadow page
tables. The allocation of page table roots is especially tricky. We need to
clone the root for non-PAE mode while it is protected under the pgd lock to
correctly copy the shadow.
We don't need to allocate pgds in PAE mode, (PDPs in Intel terminology) as
they only have 4 entries, and are cached entirely by the processor, which
makes shadowing them rather simple.
For base page table level allocation, pmd_populate provides the exact hook
point we need. Also, we need to allocate pages when splitting a large page,
and we must release pages before returning the page to any free pool.
Despite being required with these slightly odd semantics for VMI, Xen also
uses these hooks to determine the exact moment when page tables are created or
released.
AK: All nops for other architectures
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Adrian Bunk [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] i386: arch/i386/kernel/e820.c should #include <asm/setup.h
Every file should #include the headers containing the prototypes for
its global functions.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Catalin Marinas [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] x86-64: do not always end the stack trace with ULONG_MAX
It makes more sense to end the stack trace with ULONG_MAX only if
nr_entries < max_entries. Otherwise, we lose one entry in the long stack
traces and cannot know whether the trace was complete or not.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Karsten Weiss [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] x86-64: improved iommu documentation
- add SWIOTLB config help text
- mention Documentation/x86_64/boot-options.txt in
Documentation/kernel-parameters.txt
- remove the duplication of the iommu kernel parameter documentation.
- Better explanation of some of the iommu kernel parameter options.
- "32MB<<order" instead of "32MB^order".
- Mention the default "order" value.
- list the four existing PCI-DMA mapping implementations of arch x86_64
- group the iommu= option keywords by PCI-DMA mapping implementation.
- Distinguish iommu= option keywords from number arguments.
- Explain the meaning of DAC and SAC.
Signed-off-by: Karsten Weiss <knweiss@science-computing.de>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Eric Dumazet [Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)]
[PATCH] x86-64: get rid of ARCH_HAVE_XTIME_LOCK
ARCH_HAVE_XTIME_LOCK is used by x86_64 arch . This arch needs to place a
read only copy of xtime_lock into vsyscall page. This read only copy is
named __xtime_lock, and xtime_lock is defined in
arch/x86_64/kernel/vmlinux.lds.S as an alias. So the declaration of
xtime_lock in kernel/timer.c was guarded by ARCH_HAVE_XTIME_LOCK define,
defined to true on x86_64.
We can get same result with _attribute__((weak)) in the declaration. linker
should do the job.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
OGAWA Hirofumi [Tue, 13 Feb 2007 12:26:20 +0000 (13:26 +0100)]
[PATCH] mmconfig: Move e820 check into pci_mmcfg_reject_broken()
This is just cleanup. It moves to e820 check into pci_mmcfg_reject_broken().
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
OGAWA Hirofumi [Tue, 13 Feb 2007 12:26:20 +0000 (13:26 +0100)]
[PATCH] mmconfig: fix unreachable_devices()
Currently, unreachable_devices() compares value of mmconfig and value
of conf1. But it doesn't check the device is reachable or not.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
OGAWA Hirofumi [Tue, 13 Feb 2007 12:26:20 +0000 (13:26 +0100)]
[PATCH] mmconfig: minor cleanup in mmconfig code
This just cleans up.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
OGAWA Hirofumi [Tue, 13 Feb 2007 12:26:20 +0000 (13:26 +0100)]
[PATCH] mmconfig: remove #define MMCONFIG_APER_XXX
MMCONFIG_APER_XXX is unneeded in arch/x86_64/pci/mmconfig.c.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
OGAWA Hirofumi [Tue, 13 Feb 2007 12:26:20 +0000 (13:26 +0100)]
[PATCH] mmconfig: Reject a broken MCFG tables on Asus etc
This rejects broken MCFG tables on Asus. When the table
looks bogus just disable mmconfig
Arjan and Andi suggested this.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
OGAWA Hirofumi [Tue, 13 Feb 2007 12:26:20 +0000 (13:26 +0100)]
[PATCH] mmconfig: Fix x86_64 ioremap base_address
Current mmconfig has some problems of remapped range.
a) In the case of broken MCFG tables on Asus etc., we need to remap 256M
range, but currently only remap 1M.
b) The base address always corresponds to bus number 0, but currently we
are assuming it corresponds to start bus number.
This patch fixes the above problems.
(akpm: Arjan suggests that if the MCFG table is broken we just shouldn't use
it, rather than try to work around things).
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Olivier Galibert [Tue, 13 Feb 2007 12:26:20 +0000 (13:26 +0100)]
[PATCH] mmconfig: Reserve resources but only when we're sure about them.
Put back the resource reservation as per
4c6e052adfe285ede5884e4e8c4d33af33932c13 but use it *only* when the range(s)
come from a chipset probe instead of the bios.
Signed-off-by: Olivier Galibert <galibert@pobox.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Olivier Galibert [Tue, 13 Feb 2007 12:26:20 +0000 (13:26 +0100)]
[PATCH] mmconfig: Detect and support the E7520 and the 945G/GZ/P/PL
It seems that the only way to reliably support mmconfig in the presence of
funky biosen is to detect the hostbridge and read where the window is mapped
from its registers. Do that for the E7520 and the 945G/GZ/P/PL for a start.
Signed-off-by: Olivier Galibert <galibert@pobox.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>