Age | Commit message (Collapse) | Author |
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Fix:
ERROR: do not initialise externals to 0 or NULL
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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otherwise Vmemmap and High Kernel Mapping string is not showing up.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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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: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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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: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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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: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Andi Kleen <andi@firstfloor.org>
CC: pageexec@freemail.hu
CC: H. Peter Anvin <hpa@zytor.com>
CC: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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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: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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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 <mingo@elte.hu>
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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 <mingo@elte.hu>
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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 <mingo@elte.hu>
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Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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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 <mingo@elte.hu>
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This is done for smpboot_32.c
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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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: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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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: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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make setup_trampoline non-static. This way, it won't conflict
with the extern declaration in smp.h
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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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: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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In here, they can serve both architectures
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The parameter passing parsing is done in the common smpboot.c
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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They are now equal, and are moved to a common file
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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it was already cleared two lines above, and so, this removal
is bogus
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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it is already used in x86_64. In i386, it only
removes from cpu_online_map
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This lock does not protect cpu_online_map, so its
length can be shortened, and in some cases, removed.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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it is equal between architectures
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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set_cpu_sibling_map() and remove_sibling_info() are
equal between architectures, and are now moved to common
file
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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this is done to match i386
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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And move its extern definition to smp.h, the common header
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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move definitions that are now equal in type from
smpboot_{32,64}.c to smpboot.c
cpu_callin_map is put temporarily in smp_64.h (already
exists in smp_32.h), and will soon be merged.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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so they can have the same type as x86_64
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This patch merges the copyright notices, and valuable
comments that were left back on smp_{32,64}.c. With that,
files are empty, and are deleted
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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this patch creates tlb_32.c and tlb_64.c, with
tlb-related functions that used to live in smp*.c files.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This patch moves all ipi and apic related functions
from smp_32.c to ipi.c
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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this patch moves all the functions and data structures that look
like exactly the same from smp_{32,64}.c to smp.c
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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function definition is moved to common header.
x86_64 version is now called native_smp_send_stop
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This can be safely added to i386. After that,
functions look exactly the same for both arches
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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with the hlt_works change, it is possible to have i386
and x86_64 stop_this_cpu() looking exactly the same. They
can, after that, be merged.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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the two versions (the inner version, and the outer version, that takes
the locks) of smp_call_function_mask are made into one. With the changes,
i386 and x86_64 versions look exactly the same.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This function is used in smp_send_stop(). It's like
smp_call_function_mask, but always go to all online cpus,
and does not take any locks.
It is added to x86_64, but will soon be unified in a common file
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This patch creates smpcommon.c with functions that are
equal between architectures. The i386-only init_gdt
is ifdef'd.
Note that smpcommon.o figures twice in the Makefile:
this is because sub-architectures like voyager that does
not use the normal smp_$(BITS) files also have to access them
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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there's already a warning in the topmost function
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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with this removal, exports for both i386 and x86_64,
regarding the "smp_call_function" series are now the same.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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this patches moves prefill_possible_map() to smpboot.c
Right now it is x86_64-specific, but nothing intrinsically
prevents it to be used by i386
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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this patch allows a cpu to be marked as present but disabled in i386,
just as x86_64 currently does.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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definition is moved to common header. x86_64 version is now called
native_smp_cpus_done
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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definition is moved to common header. x86_64 version is now called
native_smp_prepare_cpus
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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definition is moved to common header. x86_64 version is now called
native_prepare_boot_cpu
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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function definition is moved to common header. x86_64 version
is now called native_cpu_up
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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definition is moved to common header, x86_64 function name
now is native_smp_call_function_mask
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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