Commit Graph

88600 Commits

Author SHA1 Message Date
Alexey Starikovskiy
9e0a2de268 x86: rearrange bus_type parse
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:59 +02:00
Alexey Starikovskiy
643befed10 x86: use not_pci bitmap #6
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:59 +02:00
Alexey Starikovskiy
9c0076cb34 x86: use not_pci bitmap #5
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:59 +02:00
Alexey Starikovskiy
6728801dce x86: use not_pci bitmap #4
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:59 +02:00
Alexey Starikovskiy
47cab822d6 x86: use not_pci bitmap #3
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:59 +02:00
Alexey Starikovskiy
73b2961bfa x86: use not_pci bitmap #2
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Alexey Starikovskiy
d27e2b8e2a x86: use not_pci bitmap #1
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Alexey Starikovskiy
a6333c3ccb x86: add mp_bus_not_pci bitmap to mpparse_32.c
Signed-off: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Yinghai Lu
8643f9d02a x86: get boot_cpu_id as early for k8_scan_nodes
When acpi=off or there is no SRAT defined, apicid_to_node is got from K8
Northbridge PCI configuration space in k8_scan_nodes() in
arch/x86_64/mm/k8toplogy.c.

The problem is that it assumes bsp apic id is 0 at that point.

For four socket system with Quad core cpus installed, all cpus apic id
is offset by 4, and bsp apic id is 4.

For eight socket system with dual core cpus installed, all cpus apic id
is offset by 2, and bsp apic id is 2.

We need get boot_cpu_id --- bsp apic id, before k8_scan_nodes by called.

So create early_acpi_boot_init and early_get_smp_config for get boot_cpu_id.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Alexey Starikovskiy
6079d2d5d1 x86: move quad_local_to_mp_bus_id to numa.c
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Mikael Pettersson
5d570cbbf2 x86: correct/clarify comment in nops.h
<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>
2008-04-17 17:40:58 +02:00
Johannes Weiner
1415d160c7 x86: Remove redundant display of free swap space in show_mem()
Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Jan Beulich
5b0e508415 x86: prevent unconditional writes to DebugCtl MSR
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: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Gautham R Shenoy
f694010185 x86: Don't send RESCHEDULE_VECTOR to offlined cpus
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: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
stephane eranian
12db648c15 x86: add AMD Northbridge MSR definition
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: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
stephane eranian
86975101e4 x86: add cpu_has_arch_perfmon
adds cpu_has_arch_perfmon to test presence of architectural perfmon on
Intel x86 processor

Signed-off-by: Stephane Eranian <eranian@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Joe Perches
e40c0fe6b0 x86: cleanup duplicate includes
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: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Paolo Ciarrocchi
537d916066 x86: coding style fixes to arch/x86/kernel/setup_32.c
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>
2008-04-17 17:40:58 +02:00
Yinghai Lu
9a79cf9c1a x86: sort address_markers for dump_pagetables
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>
2008-04-17 17:40:58 +02:00
Yinghai Lu
01aaea1afb x86: introduce initial apicid
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>
2008-04-17 17:40:58 +02:00
Ingo Molnar
459cce7267 x86: remove mach_reboot.h
all reboot details are handled in reboot.c and quirks are handled
via reboot_fixups_32.c.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:58 +02:00
Mathieu Desnoyers
4e4eee0e01 x86: enhance DEBUG_RODATA support for hotplug and kprobes
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>
2008-04-17 17:40:58 +02:00
Mathieu Desnoyers
e587cadd8f x86: enhance DEBUG_RODATA support - alternatives
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>
2008-04-17 17:40:58 +02:00
Harvey Harrison
77bf90ed66 x86: replace remaining __FUNCTION__ occurances
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:57 +02:00
Yinghai Lu
282bfe21cf x86: show apicid for cpu in proc
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:57 +02:00
Yinghai Lu
a706221186 x86: fix amd_detect_cmp
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>
2008-04-17 17:40:57 +02:00
Ingo Molnar
97b44ae6cd x86: add KERN_INFO to show_unhandled_signals printout
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>
2008-04-17 17:40:57 +02:00
Ingo Molnar
eee6dd1572 x86: move extern declaration to vdso.h
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>
2008-04-17 17:40:57 +02:00
Ingo Molnar
7e907f4898 x86: clean up arch/x86/kernel/signal_32.c
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>
2008-04-17 17:40:57 +02:00
Ingo Molnar
a711317021 x86: remove DEBUG_SIG
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:57 +02:00
Joe Perches
c1db29dbc7 x86: arch/x86/kernel/cpu/feature_names.c - use angle brackets for include
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:57 +02:00
Joe Perches
16281a998d x86: include/asm-x86/mutex_32.h - use angle brackets for include
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:57 +02:00
Ingo Molnar
f668964ea1 x86: clean up i387.c
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>
2008-04-17 17:40:57 +02:00
Ingo Molnar
ca9cda2f7b x86: add comments to processor.h
add comments to the FPU structures of processor.h.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:57 +02:00
Glauber Costa
e104383fbf x86: use cpu_relax instead of rep_nop
This is done for smpboot_32.c

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:57 +02:00
Glauber Costa
e90009bcc1 x86: use wait_for_init_deassert in x86_64
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>
2008-04-17 17:40:57 +02:00
Glauber Costa
91718e8d13 x86: unify setup_trampoline
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>
2008-04-17 17:40:57 +02:00
Glauber Costa
da522b0729 x86: adapt voyager's setup_trampoline
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>
2008-04-17 17:40:57 +02:00
Glauber Costa
d507897b2f x86: adapt voyager's trampoline_base
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>
2008-04-17 17:40:57 +02:00
Glauber Costa
4206882939 x86: move trampoline arrays extern definition to smp.h
In here, they can serve both architectures

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:56 +02:00
Glauber Costa
89b08200ad x86: make x86_64 accept the max_cpus parameter
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>
2008-04-17 17:40:56 +02:00
Glauber Costa
69c18c15d3 x86: merge __cpu_disable and cpu_die
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>
2008-04-17 17:40:56 +02:00
Glauber Costa
e9a6cb96fa x86: do not clear cpu_online_map
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>
2008-04-17 17:40:56 +02:00
Glauber Costa
045f9d2202 x86: use remove_from_maps in cpu_disable
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>
2008-04-17 17:40:56 +02:00
Glauber Costa
fc25da9ec6 x86: remove vector_lock around cpu_online_map
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>
2008-04-17 17:40:56 +02:00
Glauber Costa
70708a18e8 x86: move cpu_coregroup_map to common file
it is equal between architectures

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:56 +02:00
Glauber Costa
768d95051b x86: move sibling functions to common file
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>
2008-04-17 17:40:56 +02:00
Glauber Costa
1dbb4726fa x86: move hotplug related extern definitions to smp.h
definitions that are inside CONFIG_HOTPLUG_CPU in
the arch-specific smp*.h files are moved to common
header

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:56 +02:00
Glauber Costa
61d5989973 x86: make remove_siblinginfo non-static
this is done to match i386

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:56 +02:00
Glauber Costa
1452207689 x86: make set_cpu_sibling_map nonstatic
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>
2008-04-17 17:40:56 +02:00