- 17 Apr, 2008 40 commits
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Mikael Pettersson authored
<asm-x86/nops.h> describes certain multibyte instructions as "generic" nops when in fact they aren't nops at all in 64-bit mode (missing REX.W causing truncation of a register). Update the comment to state that K8 or P6 style nops should be used in 64-bit mode. This matches what the alternatives code does. Signed-off-by:
Mikael Pettersson <mikpe@it.uu.se> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Johannes Weiner authored
Signed-off-by:
Johannes Weiner <hannes@saeurebad.de> Signed-off-by:
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Jan Beulich authored
Otherwise, enabling (or better, subsequent disabling) of single stepping would cause a kernel oops on CPUs not having this MSR. The patch could have been added a conditional to the MSR write in user_disable_single_step(), but centralizing the updates seems safer and (looking forward) better manageable. Signed-off-by:
Jan Beulich <jbeulich@novell.com> Cc: Markus Metzger <markus.t.metzger@intel.com> Signed-off-by:
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Gautham R Shenoy authored
In the x86 native_smp_send_reschedule_function(), don't send the IPI if the cpu has gone offline already. Warn nevertheless!! Signed-off-by:
Gautham R Shenoy <ego@in.ibm.com> Signed-off-by:
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stephane eranian authored
adds AMD Northbridge config MSR definition Signed-off-by:
Stephane Eranian <eranian@gmail.com> Signed-off-by:
Robert Richter <robert.richter@amd.com> Signed-off-by:
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stephane eranian authored
adds cpu_has_arch_perfmon to test presence of architectural perfmon on Intel x86 processor Signed-off-by:
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Joe Perches authored
Signed-off-by:
Joe Perches <joe@perches.com> arch/x86/kernel/reboot.c | 1 - include/asm-x86/elf.h | 5 ++--- include/asm-x86/posix_types.h | 8 +------- include/asm-x86/processor.h | 3 +-- include/asm-x86/unistd.h | 8 +------- 5 files changed, 5 insertions(+), 20 deletions(-) Signed-off-by:
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Paolo Ciarrocchi authored
Fix: ERROR: do not initialise externals to 0 or NULL Signed-off-by:
Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by:
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Yinghai Lu authored
otherwise Vmemmap and High Kernel Mapping string is not showing up. Signed-off-by:
Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by:
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Yinghai Lu authored
store initial_apicid from early identify. it is could be different from phys_proc_id later. also print it out in /proc/cpuinfo. Signed-off-by:
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Ingo Molnar authored
all reboot details are handled in reboot.c and quirks are handled via reboot_fixups_32.c. Signed-off-by: -
Mathieu Desnoyers authored
Standardize DEBUG_RODATA, removing special cases for hotplug and kprobes. Signed-off-by:
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Andi Kleen <andi@firstfloor.org> Cc: pageexec@freemail.hu Cc: akpm@linux-foundation.org CC: Andi Kleen <andi@firstfloor.org> CC: pageexec@freemail.hu CC: H. Peter Anvin <hpa@zytor.com> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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Mathieu Desnoyers authored
Fix a memcpy that should be a text_poke (in apply_alternatives). Use kernel_wp_save/kernel_wp_restore in text_poke to support DEBUG_RODATA correctly and so the CPU HOTPLUG special case can be removed. Add text_poke_early, for alternatives and paravirt boot-time and module load time patching. Changelog: - Fix text_set and text_poke alignment check (mixed up bitwise and and or) - Remove text_set - Export add_nops, so it can be used by others. - Document text_poke_early. - Remove clflush, since it breaks some VIA architectures and is not strictly necessary. - Add kerneldoc to text_poke and text_poke_early. - Create a second vmap instead of using the WP bit to support Xen and VMI. - Move local_irq disable within text_poke and text_poke_early to be able to be sleepable in these functions. Signed-off-by:
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Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by:
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Yinghai Lu authored
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Yinghai Lu authored
for system with apicid lifting, boot cpu apicid will be 4 got: CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU 0/4 -> Node 0 CPU: Physical Processor ID: 1 CPU: Processor Core ID: 0 so try to offset apicid back before get phys_proc_id with bits shift. then we can get correct socket ID also remove remove cpu_data(0) reference. because cpu_data(0) only be ready after smp_prepare_cpus with the assignment from boot_cpu_data to current_cpu_data aka cpu_data(0). and check_bugs()==>identify_cpu(&boot_cpu_data) is quite before than smp_prepare_cpus. So just use boot_cpu_id instead. Signed-off-by:
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Ingo Molnar authored
Before: total: 0 errors, 1 warnings, 678 lines checked After: total: 0 errors, 0 warnings, 678 lines checked No code changed: arch/x86/kernel/signal_32.o: text data bss dec hex filename 5333 0 4 5337 14d9 signal_32.o.before 5336 0 4 5340 14dc signal_32.o.after md5: c279e98012a2808e90cfa2a7787e42a4 signal_32.o.before.asm c279e98012a2808e90cfa2a7787e42a4 signal_32.o.after.asm Signed-off-by: -
Ingo Molnar authored
Before: total: 0 errors, 3 warnings, 685 lines checked After: total: 0 errors, 1 warnings, 678 lines checked No code changed: arch/x86/kernel/signal_32.o: text data bss dec hex filename 5333 0 4 5337 14d9 signal_32.o.before 5333 0 4 5337 14d9 signal_32.o.after md5: c279e98012a2808e90cfa2a7787e42a4 signal_32.o.before.asm c279e98012a2808e90cfa2a7787e42a4 signal_32.o.after.asm Signed-off-by: -
Ingo Molnar authored
Before: total: 21 errors, 6 warnings, 665 lines checked After: total: 0 errors, 3 warnings, 685 lines checked No code changed: arch/x86/kernel/signal_32.o: text data bss dec hex filename 5333 0 4 5337 14d9 signal_32.o.before 5333 0 4 5337 14d9 signal_32.o.after md5: c279e98012a2808e90cfa2a7787e42a4 signal_32.o.before.asm c279e98012a2808e90cfa2a7787e42a4 signal_32.o.after.asm Signed-off-by: -
Ingo Molnar authored
Signed-off-by: -
Joe Perches authored
Signed-off-by:
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Joe Perches authored
Signed-off-by:
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Ingo Molnar authored
minor coding style cleanups. Before: total: 0 errors, 3 warnings, 479 lines checked After: total: 0 errors, 1 warnings, 483 lines checked No code changed: arch/x86/kernel/i387.o: text data bss dec hex filename 2379 4 8 2391 957 i387.o.before 2379 4 8 2391 957 i387.o.after md5: e1434553a3b4ff1f52ad97a68b1fad8a i387.o.before.asm e1434553a3b4ff1f52ad97a68b1fad8a i387.o.after.asm Signed-off-by: -
Ingo Molnar authored
add comments to the FPU structures of processor.h. Signed-off-by: -
Glauber Costa authored
This is done for smpboot_32.c Signed-off-by:
Glauber Costa <gcosta@redhat.com> Signed-off-by:
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Glauber Costa authored
wraps the busy loop for wait_for_init_deasserted() in a function, so smp_callin in x86_64 looks like more i386 Signed-off-by:
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Glauber Costa authored
setup_trampoline() looks very similar between architectures, and this patch unifies them. The i386 version allocates bootmem memory, while the x86_64 version uses a fixed address. In this patch, we initialize the global trampoline_base to the x86_64 version, and i386 allocation can later override it. Signed-off-by:
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Glauber Costa authored
make setup_trampoline non-static. This way, it won't conflict with the extern declaration in smp.h Signed-off-by:
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Glauber Costa authored
Change voyager's trampoline base to unsigned char * instead of u32. This way, it won't conflict with the other architectures when including smp.h Signed-off-by:
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Glauber Costa authored
In here, they can serve both architectures Signed-off-by:
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Glauber Costa authored
The parameter passing parsing is done in the common smpboot.c Signed-off-by:
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Glauber Costa authored
They are now equal, and are moved to a common file Signed-off-by:
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Glauber Costa authored
it was already cleared two lines above, and so, this removal is bogus Signed-off-by:
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Glauber Costa authored
it is already used in x86_64. In i386, it only removes from cpu_online_map Signed-off-by:
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Glauber Costa authored
This lock does not protect cpu_online_map, so its length can be shortened, and in some cases, removed. Signed-off-by:
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Glauber Costa authored
it is equal between architectures Signed-off-by:
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Glauber Costa authored
set_cpu_sibling_map() and remove_sibling_info() are equal between architectures, and are now moved to common file Signed-off-by:
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Glauber Costa authored
definitions that are inside CONFIG_HOTPLUG_CPU in the arch-specific smp*.h files are moved to common header Signed-off-by:
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Glauber Costa authored
this is done to match i386 Signed-off-by:
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Glauber Costa authored
And move its extern definition to smp.h, the common header Signed-off-by:
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