- 17 Oct, 2007 40 commits
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Luiz Fernando N. Capitulino authored
convert mm_context_t semaphore to a mutex. Signed-off-by:
Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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Jan Beulich authored
Add support for and use the multi-byte NOPs recently documented to be available on all PentiumPro and later processors. This patch only applies cleanly on top of the "x86: misc. constifications" patch sent earlier. [ tglx: arch/x86 adaptation ] Signed-off-by:
Jan Beulich <jbeulich@novell.com> Signed-off-by:
Andi Kleen <ak@suse.de> Signed-off-by:
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Andi Kleen authored
Spotted by Chuck Ebbert [ tglx: arch/x86 adaptation ] Signed-off-by:
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Ingo Molnar authored
Oleg Nesterov pointed out that the set_fs() calls in setup_frame() and setup_rt_frame() were superfluous. [ tglx: arch/x86 adaptation ] Signed-off-by:
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Luiz Fernando N. Capitulino authored
[ tglx: arch/x86 adaptation ] Signed-off-by:
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Andi Kleen authored
[ tglx: arch/x86 adaptation ] Signed-off-by:
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Yinghai Lu authored
Normally we will have two segment not connected pin pin0, and pin after 15... So we need to print out "not connected\n" for previous segment, before printing out connected pins info... Signed-off-by:
Yinghai Lu <yinghai.lu@sun.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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Ingo Molnar authored
improve early fault output. old format: Int 14: CR2 010001e3 err 00000002 EIP c011f2f9 CS 00000060 flags 00010046 Stack: c073695e c0791c10 00000000 ffffffff 00000000 01000000 00001000 c0791c10 new format: BUG: Int 14: CR2 010001e3 EDI c1000000 ESI c0693c10 EBP c0637f9c ESP c0637f08 EBX 00000000 EDX 0000000e ECX 00000000 EAX 010001e3 err 00000002 EIP c0123119 CS 00000060 flg 00010046 Stack: c064d589 c0693000 00000000 c0637f60 00c001e3 01000000 00038000 00000163 00000000 00000163 00000000 ffffffff 00038000 00000000 00000000 00001000 00001000 00000000 c0637f88 c06509be c0a2ae60 00001000 00001000 00000000 Signed-off-by: -
Jan Beulich authored
It doesn't seem to make sense to hide these, even if their counts can't change at the point in time they're being displayed. [ tglx: arch/x86 adaptation ] Signed-off-by:
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Joe Korty authored
Add missing IRQs and IRQ descriptions to /proc/interrupts. /proc/interrupts is most useful when it displays every IRQ vector in use by the system, not just those somebody thought would be interesting. This patch inserts the following vector displays to the i386 and x86_64 platforms, as appropriate: rescheduling interrupts TLB flush interrupts function call interrupts thermal event interrupts threshold interrupts spurious interrupts A threshold interrupt occurs when ECC memory correction is occuring at too high a frequency. Thresholds are used by the ECC hardware as occasional ECC failures are part of normal operation, but long sequences of ECC failures usually indicate a memory chip that is about to fail. Thermal event interrupts occur when a temperature threshold has been exceeded for some CPU chip. IIRC, a thermal interrupt is also generated when the temperature drops back to a normal level. A spurious interrupt is an interrupt that was raised then lowered by the device before it could be fully processed by the APIC. Hence the apic sees the interrupt but does not know what device it came from. For this case the APIC hardware will assume a vector of 0xff. Rescheduling, call, and TLB flush interrupts are sent from one CPU to another per the needs of the OS. Typically, their statistics would be used to discover if an interrupt flood of the given type has been occuring. AK: merged v2 and v4 which had some more tweaks AK: replace Local interrupts with Local timer interrupts AK: Fixed description of interrupt types. [ tglx: arch/x86 adaptation ] [ mingo: small cleanup ] Signed-off-by:
Joe Korty <joe.korty@ccur.com> Signed-off-by:
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Pavel Emelyanov authored
Typically the oops first lines look like this: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c049dfbd *pde = 00000000 Oops: 0002 [#1] PREEMPT SMP ... Such output is gained with some ugly if (!nl) printk("\n"); code and besides being a waste of lines, this is also annoying to read. The following output looks better (and it is how it looks on x86_64): BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c049dfbd *pde = 00000000 Oops: 0002 [#1] PREEMPT SMP ... [ tglx: arch/x86 adaptation ] Signed-off-by:Pavel Emelyanov <xemul@openvz.org> Signed-off-by:
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Thomas Gleixner authored
Some BIOSes set the C1E flag only on the second core. Print a warning so the Firmware Toolkit can check for it. mingo: fix C1E build bug on 32-bit Signed-off-by:
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Satyam Sharma authored
Call cache_add_dev() from cache_sysfs_init() explicitly, instead of referencing the CPU notifier callback directly from generic startup code. Looks cleaner (to me at least) this way, and also makes it possible to use other tricks to replace __cpuinit{data} annotations, as recently discussed on this list. Signed-off-by:Satyam Sharma <satyam@infradead.org> Cc: Andi Kleen <ak@suse.de> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by:
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Thomas Gleixner authored
The dmi const-ification missed acer_cpu_freq_pst. Fix it. Signed-off-by:
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Thomas Gleixner authored
The additional struct member of user_desc can be made conditional for 64 bit compiles. Signed-off-by:
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Thomas Gleixner authored
Aside of the register defines the content can be shared. Signed-off-by:
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Thomas Gleixner authored
Merge the files together. Signed-off-by:
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Roland McGrath authored
This adds a const to the definitions vvar.c makes, so that the vdso_* variables go into .rodata instead of .data. This is essentially a cosmetic change, just giving the section headers in the vDSO file more pleasing flags. These variables are read-only from the perspective of the vDSO itself and user mode, even though the contents of the DSO image were adjusted at boot. Signed-off-by:
Roland McGrath <roland@redhat.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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Muli Ben-Yehuda authored
Now that we check for translation enabled/disabled based on the presence of the IOMMU translation table, we can get rid of translate_phb. Signed-off-by:
Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by:
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Andrew Morton authored
- Fix this: include/asm/io.h: In function `memcpy_fromio': include/asm/io.h:208: warning: passing argument 2 of `__memcpy' discards qualifiers from pointer target type - Clean up code a bit Reported-by:
Uwe Bugla <uwe.bugla@gmx.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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Adrian Bunk authored
"extern inline" will have different semantics with gcc 4.3. Signed-off-by:
Adrian Bunk <bunk@kernel.org> Acked-by:
Andrey Panin <pazke@donpac.ru> Signed-off-by:
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Mike Travis authored
In x86_64 and i386 architectures most arrays that are sized using NR_CPUS lay in local memory on node 0. Not only will most (99%?) of the systems not use all the slots in these arrays, particularly when NR_CPUS is increased to accommodate future very high cpu count systems, but a number of cache lines are passed unnecessarily on the system bus when these arrays are referenced by cpus on other nodes. Typically, the values in these arrays are referenced by the cpu accessing it's own values, though when passing IPI interrupts, the cpu does access the data relevant to the targeted cpu/node. Of course, if the referencing cpu is not on node 0, then the reference will still require cross node exchanges of cache lines. A common use of this is for an interrupt service routine to pass the interrupt to other cpus local to that node. Ideally, all the elements in these arrays should be moved to the per_cpu data area. In some cases (such as x86_cpu_to_apicid) the array is referenced before the per_cpu data areas are setup. In this case, a static array is declared in the __initdata area and initialized by the booting cpu (BSP). The values are then moved to the per_cpu area after it is initialized and the original static array is freed with the rest of the __initdata. This patch: Fix four instances where cpu_to_node is referenced by array instead of via the cpu_to_node macro. This is preparation to moving it to the per_cpu data area. Signed-off-by:
Mike Travis <travis@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Signed-off-by:
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Thomas Gleixner authored
sys_iopl is long gone and there is no reason to declare sys_rt_sigaction here. Remove it all together and fix the whitespace mess as well. It's worth the trouble: 25897 -> 21337 bytes, the win is larger than the memory of my first computer :) Signed-off-by:
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Stefan Richter authored
It needs to be automatic. The HPET legacy interrupt mode disconnects the RTC interrupt and connects the interrupt of the second HPET channel. [ tglx: arch/x86 adaptation and comment fixup] Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by:
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Jan Beulich authored
.. as they're, with a single exception, never written to. [ tglx: arch/x86 adaptation ] Signed-off-by:
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Andi Kleen authored
Move the = into the __setup line. Document the option in kernel-parameters.txt by adding a pointer to the x86-64 specific documentation. [ tglx: arch/x86 adaptation ] Pointed out by Robert Day Signed-off-by:
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Satyam Sharma authored
These build warnings: In file included from include/asm/thread_info.h:16, from include/linux/thread_info.h:21, from include/linux/preempt.h:9, from include/linux/spinlock.h:49, from include/linux/vmalloc.h:4, from arch/i386/boot/compressed/misc.c:14: include/asm/processor.h: In function cpuid_count include/asm/processor.h:615: warning: pointer targets in passing argument 1 of native_cpuid differ in signedness include/asm/processor.h:615: warning: pointer targets in passing argument 2 of native_cpuid differ in signedness include/asm/processor.h:615: warning: pointer targets in passing argument 3 of native_cpuid differ in signedness include/asm/processor.h:615: warning: pointer targets in passing argument 4 of native_cpuid differ in signedness come because the arguments have been specified as pointers to (signed) int types, not unsigned. So let's specify those as unsigned. Do some codingstyle here and there while at it. [ tglx: arch/x86 adaptation ] Signed-off-by:
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Adrian Bunk authored
.i is an ending used for preprocessed stuff. This patch therefore renames assembler include files to .h and guards the contents with an #ifdef __ASSEMBLY__. [ tglx: arch/x86 adaptation ] Signed-off-by:
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Steven Rostedt authored
It is not good taste to have macros with additions that do not have parenthesises around them. This patch parethesizes the IRQ vector macros for x86_64 arch. Note, this caused me a bit of heart-ache debugging lguest64. [ tglx: arch/x86 adaptation ] Signed-off-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
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Chuck Lever authored
The return type of __scanbit() doesn't match the return type of find_{first,next}_bit(). Thus when you construct something like this: boolean ? __scanbit() : find_first_bit() you get an unsigned long result if "boolean" is true, and a signed long result if "boolean" is false. In file included from /home/cel/src/linux/include/linux/mmzone.h:15, from /home/cel/src/linux/include/linux/gfp.h:4, from /home/cel/src/linux/include/linux/slab.h:14, from /home/cel/src/linux/include/linux/percpu.h:5, from /home/cel/src/linux/include/linux/rcupdate.h:41, from /home/cel/src/linux/include/linux/dcache.h:10, from /home/cel/src/linux/include/linux/fs.h:275, from /home/cel/src/linux/fs/nfs/sysctl.c:9: /home/cel/src/linux/include/linux/nodemask.h: In function â__first_nodeâ: /home/cel/src/linux/include/linux/nodemask.h:229: warning: signed and unsigned type in conditional expression /home/cel/src/linux/include/linux/nodemask.h: In function â__next_nodeâ: /home/cel/src/linux/include/linux/nodemask.h:235: warning: signed and unsigned type in conditional expression /home/cel/src/linux/include/linux/nodemask.h: In function â__first_unset_nodeâ: /home/cel/src/linux/include/linux/nodemask.h:253: warning: signed and unsigned type in conditional expression [ tglx: arch/x86 adaptation ] Signed-off-by:Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
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Glauber de Oliveira Costa authored
This patch removes the __STR() and STR() macros from x86_64 header files. They seem to be legacy, and has no more users. Even if there were users, they should use __stringify() instead. In fact, there were one third place in which this macro was defined (ia32_binfmt.c), and used just below. In this file, usage was properly converted to __stringify() [ tglx: arch/x86 adaptation ] Signed-off-by:
Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by:
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Mike Travis authored
Remove the x86_cpu_to_log_apicid array. It is set in arch/x86_64/kernel/genapic_flat.c:flat_init_apic_ldr() and arch/x86_64/kernel/smpboot.c:do_boot_cpu() but it is never referenced. [ tglx: arch/x86 adaptation ] Signed-off-by:
Christoph Lameter <clameter@sgi.com> Signed-off-by:
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Andi Kleen authored
The constraints in the inline assembler implementation of i386 strrchr() were incorrect and break the build with recent gcc 4.3. Since there are only very few callers of strrchr() and none of them are performance relevant just remove the assembler implementation and use the C fallback instead. [ tglx: arch/x86 adaptation ] Cc: rguenther@suse.de Signed-off-by:
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Chris Snook authored
The volatile keyword has already been removed from the declaration of atomic_t on x86_64. For consistency, remove it from atomic64_t as well. [ tglx: arch/x86 adaptation ] Signed-off-by:
Chris Snook <csnook@redhat.com> Signed-off-by:
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Avi Kivity authored
smp_call_function_single() now knows how to call the function on the current cpu. [ tglx: arch/x86 adaptation ] Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by:
Avi Kivity <avi@qumranet.com> Signed-off-by:
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Avi Kivity authored
smp_call_function_single() now knows how to call the function on the current cpu. [ tglx: arch/x86 adaptation ] Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by:
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Mariusz Kozlowski authored
arch/x86_64/kernel/io_apic.c | 56080 -> 56038 (-42 bytes) also eliminate unnecessary local variable assignment. [ tglx: arch/x86 adaptation ] Signed-off-by:
Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by:
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Adrian Bunk authored
As long as there's no write access to this variable there's no reason to let gcc check it at runtime. [ tglx: arch/x86 adaptation ] Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Adrian Bunk authored
This patch contains the following cleanups: - make some needlessly global functions static - #if 0 the unused es7000_stop_cpu() AK: actually removed es7000_stop_cpu AK: fixed a non ISO prototype too [ tglx: arch/x86 adaptation ] Signed-off-by:
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akpm@linux-foundation.org authored
smp_call_function_single handles the call to local CPU case correctly now, no need to handle this in the caller. [ tglx: arch/x86 adaptation ] Signed-off-by:
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