26 Jan, 2008
2 commits
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remove remaining printk_clock references from ia64.
Signed-off-by: Ingo Molnar
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printk_clock() is obsolete - it has been replaced with cpu_clock().
Signed-off-by: Ingo Molnar
25 Jan, 2008
2 commits
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There is no need for kobject_unregister() anymore, thanks to Kay's
kobject cleanup changes, so replace all instances of it with
kobject_put().Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
Stop using kobject_register, as this way we can control the sending of
the uevent properly, after everything is properly initialized.Cc: Tony Luck
Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
16 Jan, 2008
1 commit
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The compiler team did the hard work for this distilling a problem in
large fortran application which showed up when applied to a 290MB input
data set down to this instruction:ldfd f34=[r17],-8
Which they noticed incremented r17 by 0x10 rather than decrementing it
by 8 when the value in r17 caused an unaligned data fault. I tracked
it down to some bad instruction decoding in unaligned.c. The code
assumes that the 'x' bit can determine whether the instruction is
an "ldf" or "ldfp" ... which it is for opcode=6 (see table 4-29 on
page 3:302 of the SDM). But for opcode=7 the 'x' bit is irrelevent,
all variants are "ldf" instructions (see table 4-36 on page 3:306).Note also that interpreting the instruction as "ldfp" means that the
"paired" floating point register (f35 in the example here) will also
be corrupted.Signed-off-by: Tony Luck
04 Jan, 2008
1 commit
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Montecito and Montvale behaves slightly differently than previous
Itanium processors, resulting in the MCA due to a failed PIO read
to sometimes surfacing outside the nofault code. This code is
based on discussions with Intel CPU architects and verified at
customer sites.Signed-off-by: Russ Anderson
Signed-off-by: Tony Luck
20 Dec, 2007
7 commits
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Currently CMCI mask of hot-added CPU is always disabled after CPU hotplug.
We should adjust this mask depending on CMC polling state.Signed-off-by: Hidetoshi Seto
Signed-off-by: Satoru Takeuchi
Signed-off-by: Tony Luck -
This fixes an unused variable warning in mm/vmalloc.c.
Tony: also fix resulting fallout in uncached.c with a
typo in args to flush_tlb_kernel_range().Signed-off-by: Jan Beulich
Signed-off-by: Tony Luck -
Access to elfcorehdr_addr needs to be guarded by #if CONFIG_PROC_FS
as well as the existing #if guards.Fixes the following build problem:
arch/ia64/hp/common/built-in.o: In function
`sba_init':arch/ia64/hp/common/sba_iommu.c:2043: undefined reference to `elfcorehdr_addr'
:arch/ia64/hp/common/sba_iommu.c:2043: undefined reference to `elfcorehdr_addr'Signed-off-by: Simon Horman
Signed-off-by: Tony Luck -
The Altix shub2 BTE error detail bits are in a different location
than on shub1. The current code does not take this into account
resulting in all shub2 BTE failures mapping to "unknown".This patch reads the error detail bits from the proper location,
so the correct BTE failure reason is returned for both shub1
and shub2.Signed-off-by: Russ Anderson
Signed-off-by: Tony Luck -
This patch removes the following assembler warning messages.
AS arch/ia64/kernel/head.o
arch/ia64/kernel/head.S: Assembler messages:
arch/ia64/kernel/head.S:1179: Warning: Use of 'ld8' violates RAW dependency 'CR[PTA]' (data)
arch/ia64/kernel/head.S:1179: Warning: Only the first path encountering the conflict is reported
arch/ia64/kernel/head.S:1178: Warning: This is the location of the conflicting usage
arch/ia64/kernel/head.S:1180: Warning: Use of 'ld8' violates RAW dependency 'CR[PTA]' (data)
arch/ia64/kernel/head.S:1180: Warning: Only the first path encountering the conflict is reported
arch/ia64/kernel/head.S:1178: Warning: This is the location of the conflicting usage
:
arch/ia64/kernel/head.S:1213: Warning: Use of 'ldf.fill.nta' violates RAW dependency 'CR[PTA]' (data)
arch/ia64/kernel/head.S:1213: Warning: Only the first path encountering the conflict is reported
arch/ia64/kernel/head.S:1178: Warning: This is the location of the conflicting usageSigned-off-by: Hidetoshi Seto
Signed-off-by: Tony Luck -
This patch removes the following compiler warning messages.
CC arch/ia64/kernel/irq_ia64.o
arch/ia64/kernel/irq_ia64.c: In function 'create_irq':
arch/ia64/kernel/irq_ia64.c:343: warning: 'domain.bits[0u]' may be used uninitialized in this function
arch/ia64/kernel/irq_ia64.c: In function 'assign_irq_vector':
arch/ia64/kernel/irq_ia64.c:203: warning: 'domain.bits[0u]' may be used uninitialized in this functionSigned-off-by: Kenji Kaneshige
Signed-off-by: Tony Luck -
I tried to upgrade an IA32 chroot on my IA64 to a new glibc with TLS.
It kept dying because set_thread_area was returning -ESRCH
(bugs.debian.org/451939).I instrumented arch/ia64/ia32/sys_ia32.c:get_free_idx() and ended up
seeing output like[pid] idx desc->a desc->b
-----------------------------
[2710] 0 -> c6b0ffff 40dff31b
[2710] 1 -> 0 0
[2710] 2 -> 0 0[2710] 0 -> c6b0ffff 40dff31b
[2710] 1 -> c6b0ffff 40dff31b
[2710] 2 -> 0 0[2711] 0 -> c6b0ffff 40dff31b
[2711] 1 -> c6b0ffff 40dff31b
[2711] 2 -> 48c0ffff 40dff317which suggested to me that TLS pointers were surviving exec() calls,
leading to GDT pointers filling up and the eventual failure of
get_free_idx().I think the solution is flushing the tls array on exec.
Signed-Off-By: Ian Wienand
Signed-off-by: Tony Luck
19 Dec, 2007
5 commits
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The ia64 oops message doesn't include the kernel version, which
makes it hard to automatically categorize oops messages scraped
from mailing lists and bug databases.Signed-off-by: Tony Luck
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s/addres/address/
s/performanc/performance/Signed-off-by: Joe Perches
Signed-off-by: Tony Luck -
Improve performance of memory allocations on ia64 by avoiding a global TLB
purge to purge a single page from the file cache. This happens whenever we
evict a page from the buffer cache to make room for some other allocation.Test case: Run 'find /usr -type f | xargs cat > /dev/null' in the
background to fill the buffer cache, then run something that uses memory,
e.g. 'gmake -j50 install'. Instrumentation showed that the number of
global TLB purges went from a few millions down to about 170 over a 12
hours run of the above.The performance impact is particularly noticeable under virtualization,
because a virtual TLB is generally both larger and slower to purge than
a physical one.Signed-off-by: Christophe de Dinechin
Signed-off-by: Tony Luck -
Convert ia64's ia32 support from nopage to fault.
Signed-off-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck -
This patch removes some redundant code in the function setup_sigcontext().
The registers ar.ccv,b7,r14,ar.csd,ar.ssd,r2-r3 and r16-r31 are not
restored in restore_sigcontext() when (flags & IA64_SC_FLAG_IN_SYSCALL) is
true. So we don't need to zero those variables in setup_sigcontext().Signed-off-by: Shi Weihua
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck
08 Dec, 2007
12 commits
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If "CPEI Processor Override" bit is not set in "Platform Interrupt
Source Flags" in "Platform Interrupt Sources Structure" in ACPI MADT,
the target processor of CPEI is restricted to a specific CPU. Because
of this, the delivery mode for CPEI should be IOSAPIC_FIXED.Signed-off-by: Kenji Kaneshige
Signed-off-by: Tony Luck -
Restore regs->ccr_iip before kreturn probe handler runs. In this way, if
probe handler does unwind, unwind can correctly get the stack trace.Fixes: http://sourceware.org/bugzilla/show_bug.cgi?id=5051
Signed-off-by: Shaohua Li
Signed-off-by: Tony Luck -
'!' has a higher priority than '&', so as was
this won't test the first bit, but rather evaluates to false for any non-zero
lsapic->lapic_flags.Signed-off-by: Roel Kluin
Acked-by: Simon Horman
Signed-off-by: Tony Luck -
Signed-off-by: Joe Perches
Signed-off-by: Tony Luck -
Macro efi_md_size is defined in efi.c, and here we apply it throughout
efi.c.Signed-off-by: Li Zefan
Acked-by: Simon Horman
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck -
Rename _bss to __bss_start as on other architectures. That makes it
possible to use the instead of own declarations. Also
add __bss_stop because that symbol exists on other architectures.Signed-off-by: Bernhard Walle
Cc: "Luck, Tony"
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck -
When initializing pci_controller->node to point to the closest node we need
to take into consideration that a PIC PCI Bridge ASIC can be connected to a
headless/memless node just like the TIOCP and TIOCE Bridge ASICsSigned-off-by: Mike Habeck
Signed-off-by: Tony Luck -
Make some IOSAPIC functions static and remove one that is unused.
Signed-off-by: Simon Horman
Signed-off-by: Tony Luck -
Not all the return value of __copy_from_user and
__put_user is checked.This patch fixed it.Signed-off-by: Shi Weihua
Signed-off-by: Tony Luck -
With the unionfs patch applied I get
ERROR: "copy_page" [fs/unionfs/unionfs.ko] undefined!
the other architectures (some, at least) export copy_page() so I guess ia64
should also do so.To do this we need to move the copy_page() functions out of lib.a and into
built-in.o and add the EXPORT_SYMBOL().Cc: Sam Ravnborg
Cc: Kyle McMartin
Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck -
Don't assume that this file has execute permissions. For example, patch(1)
loses that information.Signed-off-by: Andrew Morton
Signed-off-by: Tony Luck -
/opt/crosstool/gcc-3.4.5-glibc-2.3.6/ia64-unknown-linux-gnu/lib/gcc/ia64-unknown-linux-gnu/3.4.5/../../../../ia64-unknown-linux-gnu/bin/ld: section .data.patch [a000000000000500 -> a000000000000507] overlaps section .dynamic [a0000000000003c8 -> a000000000000507]
This only appears to be a problem with strangely configured
cross-compilation ... native compilers don't have this issue.
But in the interests of helping others at least compile for
ia64, this can go in. -TonySigned-off-by: Andrew Morton
Signed-off-by: Tony Luck
15 Nov, 2007
1 commit
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i386 and x86-64 registers System RAM as IORESOURCE_MEM | IORESOURCE_BUSY.
But ia64 registers it as IORESOURCE_MEM only.
In addition, memory hotplug code registers new memory as IORESOURCE_MEM too.This difference causes a failure of memory unplug of x86-64. This patch
fixes it.This patch adds IORESOURCE_BUSY to avoid potential overlap mapping by PCI
device.Signed-off-by: Yasunori Goto
Signed-off-by: Badari Pulavarty
Cc: Luck, Tony"
Cc: Thomas Gleixner
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
10 Nov, 2007
4 commits
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On Altix (sn2) machines the "Error parsing MADT" message is
misleading because the lack of IOSAPIC entries is expected.Since I am sure someone will ask, I have been told that
the chance of this changing anytime soon is close to nil.Signed-off-by: George Beshers
Signed-off-by: Tony Luck -
Newer Itanium versions have added additional processor feature set
bits. This patch prints all the implemented feature set bits. Some
bit descriptions have not been made public. For those bits, a generic
"Feature set X bit Y" message is printed. Bits that are not implemented
will no longer be printed.Signed-off-by: Russ Anderson
Signed-off-by: Tony Luck -
Fix the problem that redirect hit bit in I/O SAPIC RTE is set even
when it must be disabled (e.g. nointroute boot option is set, CPU
hotplug is enabled or percpu vector is enabled).Signed-off-by: Kenji Kaneshige
Signed-off-by: Tony Luck -
Currently, XPC's heartbeat timer function runs on whatever CPU modprobe/insmod
ran on when XPC was started. To avoid the heartbeat from being delayed for
long periods the timer function must run on CPU 0.N.B. Altix doesn't currently allow cpu0 to be taken offline, so this is
safe for now. This code must be revised when offline of cpu0 is enabled.Signed-off-by: Dean Nelson
Signed-off-by: Tony Luck
07 Nov, 2007
5 commits
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Clean up /proc/interrupts output on the system that has 10 or more
CPUs.Signed-off-by: Kenji Kaneshige
Signed-off-by: Tony Luck -
When the CPE handler encounters too many CPEs (such as a solid single
bit memory error), it sets up a polling timer and disables the CPE
interrupt (to avoid excessive overhead logging the stream of single
bit errors). disable_irq_nosync() calls chip->disable() to provide
a chipset specifiec interface for disabling the interrupt. This patch
adds the Altix specific support to disable and re-enable the CPE interrupt.Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck -
No need to print "McKinley Errata 9 workaround not needed; disabling it"
on every non-McKinley Itanium, which at this point is almost all of them.Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck -
If you build the kernel `in-place' then do a git update, git
complains about arch/ia64/kernel/gate.lds being modified and
untracked.Add that (generated) file to a .gitignore file.
Signed-off-by: Peter Chubb
Signed-off-by: Tony Luck -
There is a section mismatch when building CONFIG_FLATMEM=y kernels
that also have CONFIG_HOTPLUG_CPU=yWARNING: vmlinux.o(.text+0x5a902): Section mismatch: reference to \
.init.text:__alloc_bootmem (between 'per_cpu_init' and 'count_pages')The issue occurs because per_cpu_init() in mm/contig.c is
marked __cpuinit (which is #define'd to nothing on a hot
plug cpu configuration) call __alloc_bootmem() (which is
an __init function). The usage is actually safe because
the __alloc_bootmem() is inside an "if (first_time)" test
so that the call is only made while it is still legal to
do so.But the warning is irritating. Move the allocation to
find_memory().Signed-off-by: Tony Luck
