12 years agox86: adjust dependencies for CONFIG_X86_CMOV
Jan Beulich [Fri, 29 Aug 2008 11:50:38 +0000]
x86: adjust dependencies for CONFIG_X86_CMOV

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agodumpstack: x86: various small unification steps, fix
Alexander van Heukelum [Sun, 5 Oct 2008 10:39:36 +0000]
dumpstack: x86: various small unification steps, fix

After "dumpstack: x86: various small unification steps", the
assembler gives the following compile error. The error is in
dumpstack_64.c.

{standard input}: Assembler messages:
{standard input}:720: Error: Incorrect register `%rbx' used with `l' suffix
{standard input}:1340: Error: Incorrect register `%r12' used with `l' suffix

Indeed the suffix in get_bp() was wrong.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: remove additional_cpus
Thomas Gleixner [Sun, 5 Oct 2008 15:51:52 +0000]
x86: remove additional_cpus

remove remainder of additional_cpus logic. We now just listen to the
disabled_cpus value like we did for years. disabled_cpus is always >=
0 so no need for an extra check.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: remove additional_cpus configurability
Ingo Molnar [Sun, 5 Oct 2008 15:12:36 +0000]
x86: remove additional_cpus configurability

additional_cpus=<x> parameter is dangerous and broken: for example
if we boot additional_cpus=-2 on a stock dual-core system it will
crash the box on bootup.

So reduce the maze of code a bit by removingthe user-configurability
angle.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: improve UP kernel when CPU-hotplug and SMP is enabled
Thomas Gleixner [Sun, 5 Oct 2008 14:52:24 +0000]
x86: improve UP kernel when CPU-hotplug and SMP is enabled

num_possible_cpus() can be > 1 when disabled CPUs have been accounted.

Disabled CPUs are not in the cpu_present_map, so we can use
num_present_cpus() as a safe indicator to switch to UP alternatives.

Reported-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agodumpstack: x86: various small unification steps
Alexander van Heukelum [Sat, 4 Oct 2008 21:12:46 +0000]
dumpstack: x86: various small unification steps

- define STACKSLOTS_PER_LINE and use it
 - define get_bp macro to hide the %%ebp/%%rbp difference
 - i386: check task==NULL in dump_trace, like x86_64
 - i386: show_trace(NULL, ...) uses current automatically
 - x86_64: use [#%d] for die_counter, like i386
 - whitespace and comments

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agodumpstack: i386: make kstack= an early boot-param and add oops=panic
Alexander van Heukelum [Sat, 4 Oct 2008 21:12:45 +0000]
dumpstack: i386: make kstack= an early boot-param and add oops=panic

- make kstack= and early_param
 - add oops=panic, setting panic_on_oops

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agodumpstack: x86: use log_lvl and unify trace formatting
Alexander van Heukelum [Sat, 4 Oct 2008 21:12:44 +0000]
dumpstack: x86: use log_lvl and unify trace formatting

- x86: Write log_lvl strings if available
 - start raw stack dumps on new line
 - i386: Remove extra indentation for raw stack dumps

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agodumptrace: x86: consistently include loglevel, print stack switch
Alexander van Heukelum [Sat, 4 Oct 2008 21:12:43 +0000]
dumptrace: x86: consistently include loglevel, print stack switch

- i386 and x86_64: always printk the 'data' parameter
 - i386: announce stack switch (irq -> normal)
 - i386: check if there is a stack switch before announcing it

There is a warning that 'context' might come out corrupt in early
boot. If this is true it should be fixed, not worked around.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agodumpstack: x86: add "end" parameter to valid_stack_ptr and print_context_stack
Alexander van Heukelum [Sat, 4 Oct 2008 21:12:42 +0000]
dumpstack: x86: add "end" parameter to valid_stack_ptr and print_context_stack

- Add "end" parameter to valid_stack_ptr and print_context_stack
 - use sizeof(long) as the size of a word on the stack

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agodumpstack: x86: make printk_address equal
Alexander van Heukelum [Sat, 4 Oct 2008 21:12:41 +0000]
dumpstack: x86: make printk_address equal

- x86_64: use %p to print an address
 - make i386-version the same as the above

The result should be the same on x86_64; on i386 the
output only changes if CONFIG_KALLSYMS is turned off,
in which case the address is printed twice.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agodumpstack: x86: move die_nmi to dumpstack_32.c
Alexander van Heukelum [Sat, 4 Oct 2008 21:12:40 +0000]
dumpstack: x86: move die_nmi to dumpstack_32.c

For some reason die_nmi is still defined in traps.c for
i386, but is found in dumpstack_64.c for x86_64. Move it
to dumpstack_32.c

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86: finalize unification of traps.c
Alexander van Heukelum [Fri, 3 Oct 2008 20:00:40 +0000]
traps: x86: finalize unification of traps.c

traps_32.c and traps_64.c are now equal. Move one to traps.c,
delete the other one and change the Makefile

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86: make traps_32.c and traps_64.c equal
Alexander van Heukelum [Fri, 3 Oct 2008 20:00:39 +0000]
traps: x86: make traps_32.c and traps_64.c equal

Use CONFIG_X86_64/CONFIG_X86_32 to condtionally compile the
parts needed for x86_64 or i386 only.

Runs a small userspace for a number of minimal configurations
and boots the defconfigs.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86: various noop-changes preparing for unification of traps_xx.c
Alexander van Heukelum [Fri, 3 Oct 2008 21:17:11 +0000]
traps: x86: various noop-changes preparing for unification of traps_xx.c

- reordering include files
 - whitespace changes
 - comment changes
 - removed unused bad_intr()
 - make default_do_nmi static

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86_64: use task_pid_nr(tsk) instead of tsk->pid in do_general_protection
Alexander van Heukelum [Fri, 3 Oct 2008 20:00:37 +0000]
traps: x86_64: use task_pid_nr(tsk) instead of tsk->pid in do_general_protection

Use task_pid_nr(tsk) instead of tsk->pid in do_general_protection.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: i386: expand clear_mem_error and remove from mach_traps.h
Alexander van Heukelum [Fri, 3 Oct 2008 20:00:36 +0000]
traps: i386: expand clear_mem_error and remove from mach_traps.h

This is the last user of clear_mem_error, which is defined
only on i386. Expand the inline function and remove it from
include/asm-x86/mach-default/mach_traps.h

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86_64: make io_check_error equal to the one on i386
Alexander van Heukelum [Fri, 3 Oct 2008 20:00:35 +0000]
traps: x86_64: make io_check_error equal to the one on i386

Make io_check_error equal to the one on i386.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: i386: use preempt_conditional_sti/cli in do_int3
Alexander van Heukelum [Fri, 3 Oct 2008 20:00:34 +0000]
traps: i386: use preempt_conditional_sti/cli in do_int3

Use preempt_conditional_sti/cli in do_int3, like on x86_64.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86_64: make math_state_restore more like i386
Alexander van Heukelum [Fri, 3 Oct 2008 21:16:12 +0000]
traps: x86_64: make math_state_restore more like i386

- rename variable me -> tsk
 - get thread and tsk like i386
 - expand used_math()
 - copy comment

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86: converge trap_init functions
Alexander van Heukelum [Fri, 3 Oct 2008 20:00:32 +0000]
traps: x86: converge trap_init functions

- set_system_gate on i386 is really set_system_trap_gate
 - set_system_gate on x86_64 is really set_system_intr_gate
 - ist=0 means no special stack switch is done:
- introduce STACKFAULT_STACK, DOUBLEFAULT_STACK, NMI_STACK,
DEBUG_STACK and MCE_STACK as on x86_64.
- use the _ist variants with XXX_STACK set to zero
 - remove set_system_gate

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

traps: x86: correct copy/paste bug: a trap is a GATE_TRAP

Fix copy/paste/forgot-to-edit bug in desc.h.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86, traps: converge do_debug handlers
Alexander van Heukelum [Tue, 30 Sep 2008 16:41:37 +0000]
x86, traps: converge do_debug handlers

Make the x86_64-version and the i386-version of do_debug
more similar.

 - introduce preempt_conditional_sti/cli to i386. The preempt-count
is now elevated during the trap handler, like on x86_64. It
does not run on a separate stack, however.
 - replace an open-coded "send_sigtrap"
 - copy some comments

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86, traps: introduce dotraplinkage
Alexander van Heukelum [Tue, 30 Sep 2008 16:41:36 +0000]
x86, traps: introduce dotraplinkage

Mark the exception handlers with "dotraplinkage" to hide the
calling convention differences between i386 and x86_64.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86, traps, i386: factor out lazy io-bitmap copy
Alexander van Heukelum [Tue, 30 Sep 2008 16:41:35 +0000]
x86, traps, i386: factor out lazy io-bitmap copy

x86_64 does not do the lazy io-bitmap dance. Putting it in
its own function makes i386's do_general_protection look
much more like x86_64's.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86, traps: split out math_error and simd_math_error
Alexander van Heukelum [Tue, 30 Sep 2008 16:41:34 +0000]
x86, traps: split out math_error and simd_math_error

Split out math_error from do_coprocessor_error and simd_math_error
from do_simd_coprocessor_error, like on i386. While at it, add the
"error_code" parameter to do_coprocessor_error, do_simd_coprocessor_error
and do_spurious_interrupt_bug.

This does not change the generated code, but brings the declarations in
line with all the other trap handlers.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86_64: split out dumpstack code from traps_64.c
Alexander van Heukelum [Tue, 30 Sep 2008 11:12:15 +0000]
x86_64: split out dumpstack code from traps_64.c

The dumpstack code is logically quite independent from the
hardware traps. Split it out into its own file.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: split out dumpstack code from traps_32.c
Alexander van Heukelum [Tue, 30 Sep 2008 11:12:14 +0000]
i386: split out dumpstack code from traps_32.c

The dumpstack code is logically quite independent from the
hardware traps. Split it out into its own file.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: fix virt_addr_valid() with CONFIG_DEBUG_VIRTUAL=y, v2
Vegard Nossum [Fri, 3 Oct 2008 15:54:25 +0000]
x86: fix virt_addr_valid() with CONFIG_DEBUG_VIRTUAL=y, v2

virt_addr_valid() calls __pa(), which calls __phys_addr(). With
CONFIG_DEBUG_VIRTUAL=y, __phys_addr() will kill the kernel if the
address *isn't* valid. That's clearly wrong for virt_addr_valid().

We also incorporate the debugging checks into virt_addr_valid().

Signed-off-by: Vegard Nossum <vegardno@ben.ifi.uio.no>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: allow number of additional hotplug CPUs to be set at compile time, V2
Chuck Ebbert [Thu, 2 Oct 2008 19:30:07 +0000]
x86: allow number of additional hotplug CPUs to be set at compile time, V2

x86: allow number of additional hotplug CPUs to be set at compile time, V2

The default number of additional CPU IDs for hotplugging is determined
by asking ACPI or mptables how many "disabled" CPUs there are in the
system, but many systems get this wrong so that e.g. a uniprocessor
machine gets an extra CPU allocated and never switches to single CPU
mode.

And sometimes CPU hotplugging is enabled only for suspend/hibernate
anyway, so the additional CPU IDs are not wanted. Allow the number
to be set to zero at compile time.

Also, force the number of extra CPUs to zero if hotplugging is disabled
which allows removing some conditional code.

Tested on uniprocessor x86_64 that ACPI claims has a disabled processor,
with CPU hotplugging configured.

("After" has the number of additional CPUs set to 0)
Before: NR_CPUS: 512, nr_cpu_ids: 2, nr_node_ids 1
After: NR_CPUS: 512, nr_cpu_ids: 1, nr_node_ids 1

[Changed the name of the option and the prompt according to Ingo's
 suggestion.]

Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: do not allow to optimize flag_is_changeable_p() (rev. 2)
Krzysztof Helt [Tue, 30 Sep 2008 21:17:51 +0000]
x86: do not allow to optimize flag_is_changeable_p() (rev. 2)

The flag_is_changeable_p() is used by
has_cpuid_p() which can return different results
in the code sequence below:

 if (!have_cpuid_p())
      identify_cpu_without_cpuid(c);

  /* cyrix could have cpuid enabled via c_identify()*/
  if (!have_cpuid_p())
      return;

Otherwise, the gcc 3.4.6 optimizes these two calls
into one which make the code not working correctly.

Cyrix cpus have the CPUID instruction enabled before
the second call to the have_cpuid_p() but
it is not detected due to the gcc optimization.
Thus the ARR registers (mtrr like) are not detected
on such a cpu.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: __show_registers() and __show_regs() API unification
Pekka Enberg [Thu, 3 Apr 2008 13:40:48 +0000]
x86: __show_registers() and __show_regs() API unification

Currently the low-level function to dump user-passed registers on i386 is
called __show_registers() whereas on x86-64 it's called __show_regs(). Unify
the API to simplify porting of kmemcheck to x86-64.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86, UV: new UV genapic functions for x2apic
Jack Steiner [Mon, 29 Sep 2008 13:45:29 +0000]
x86, UV: new UV genapic functions for x2apic

Add functions that use the infrastructure added by the x2apic code. These
functions were originally stubbed out since the UV code went into the
tree prior to the x2apic code.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: move prefill_possible_map calling early, fix, V2
Chuck Ebbert [Mon, 29 Sep 2008 22:29:42 +0000]
x86: move prefill_possible_map calling early, fix, V2

Commit 4a701737 ("x86: move prefill_possible_map calling early, fix")
is the wrong fix: prefill_possible_map() needs to be available
even when CONFIG_HOTPLUG_CPU is not set. A followon patch will do that.

Fix this correctly by making prefill_possible_map() available even when
CONFIG_HOTPLUG_CPU is not set. The function is needed so that
the number of possible CPUs can be determined.

Tested on uniprocessor machine with CPU hotplug disabled.

From boot log:
  Before: NR_CPUS: 512, nr_cpu_ids: 512, nr_node_ids 1
  After: NR_CPUS: 512, nr_cpu_ids: 1, nr_node_ids 1

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: merge winchip-2 and winchip-2a cpu choices
Krzysztof Helt [Sun, 28 Sep 2008 19:28:15 +0000]
x86: merge winchip-2 and winchip-2a cpu choices

The Winchip-2 and Winchip-2A cpu choices select the
same options for kernel and compiler.

Merge them to save few bytes and reduce confusion.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86, uv: fix for size of hub mappings
Jack Steiner [Thu, 25 Sep 2008 12:52:10 +0000]
x86, uv: fix for size of hub mappings

Fix the size of the mappings of UV hub registers. Size must
be a function of the maximum node number within the SSI.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: cleanup, remove extra ifdef
Yinghai Lu [Fri, 26 Sep 2008 05:22:12 +0000]
x86: cleanup, remove extra ifdef

also change two functions to static.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: i386: make do_trap more like x86_64
Alexander van Heukelum [Fri, 26 Sep 2008 12:03:08 +0000]
traps: i386: make do_trap more like x86_64

This patch hardcodes which traps should be forwarded to
handle_vm86_trap in do_trap. This allows to remove the
vm86 parameter from the i386-version of do_trap, which
makes the DO_VM86_ERROR and DO_VM86_ERROR_INFO macros
unnecessary.

x86_64 part is whitespace only.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86: remove trace_hardirqs_fixup from pagefault handler
Alexander van Heukelum [Fri, 26 Sep 2008 12:03:07 +0000]
traps: x86: remove trace_hardirqs_fixup from pagefault handler

The last use of trace_hardirqs_fixup is unnecessary, because the
trap is taken with interrupt off on i386 as well as x86_64, and
the irq-tracer is notified of this from the assembly code.

trace_hardirqs_fixup and trace_hardirqs_fixup_flags are removed
from include/asm-x86/irqflags.h as they are no longer used.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86_64: remove trace_hardirqs_fixup from debug handler
Alexander van Heukelum [Fri, 26 Sep 2008 12:03:06 +0000]
traps: x86_64: remove trace_hardirqs_fixup from debug handler

All exceptions are taken via interrupt gates. TRACE_IRQS_OFF
is called just before entering the C code, so the irq state
is known to the irq tracer at this point. No need to call
trace_hardirqs_fixup.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86_64: remove trace_hardirqs_fixup from int3 handler
Alexander van Heukelum [Fri, 26 Sep 2008 12:03:05 +0000]
traps: x86_64: remove trace_hardirqs_fixup from int3 handler

All exceptions are taken via interrupt gates. TRACE_IRQS_OFF
is called just before entering the C code, so the irq state
is known to the irq tracer at this point. No need to call
trace_hardirqs_fixup.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86_64: remove trace_hardirqs_fixup from DO_ERROR_INFO macro
Alexander van Heukelum [Fri, 26 Sep 2008 12:03:04 +0000]
traps: x86_64: remove trace_hardirqs_fixup from DO_ERROR_INFO macro

All exceptions are taken via interrupt gates. TRACE_IRQS_OFF
is called just before entering the C code, so the irq state
is known to the irq tracer at this point. No need to call
trace_hardirqs_fixup.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86_64: add TRACE_IRQS_OFF in paranoidentry macro
Alexander van Heukelum [Fri, 26 Sep 2008 12:03:03 +0000]
traps: x86_64: add TRACE_IRQS_OFF in paranoidentry macro

Add TRACE_IRQS_OFF just before entering the C code.

All exceptions are taken via interrupt gates. If irq tracing is
enabled, it should be notified as soon as possible. Interrupts
are only (conditionally) re-enabled in C code.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agotraps: x86_64: add TRACE_IRQS_OFF in error_entry
Alexander van Heukelum [Fri, 26 Sep 2008 12:03:02 +0000]
traps: x86_64: add TRACE_IRQS_OFF in error_entry

Add TRACE_IRQS_OFF just before entering the C code.

All exceptions are taken via interrupt gates. If irq tracing is
enabled, it should be notified as soon as possible. Interrupts
are only (conditionally) re-enabled in C code.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86, uv: add early detection of UV system types
Jack Steiner [Tue, 23 Sep 2008 20:37:13 +0000]
x86, uv: add early detection of UV system types

Portions of the ACPI code needs to know if a system is a UV system prior
to genapic initialization. This patch adds a call early_acpi_boot_init()
so that the apic type is discovered earlier.

V2 of the patch adding fixes from Yinghai Lu.
Much cleaner and smaller.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: move vgetcpu mode probing to cpu detection
Glauber Costa [Mon, 22 Sep 2008 17:35:08 +0000]
x86: move vgetcpu mode probing to cpu detection

Take it out of time initialization and move it to
cpu detection time.

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: wrap MCA_bus test around an ifdef
Glauber Costa [Mon, 21 Jul 2008 21:42:52 +0000]
x86: wrap MCA_bus test around an ifdef

Only test for MCA_bus if support for MCA is compiled in.
Also, for x86_64, write the code inside the conditional
for consistency with i386. It won't bite us, since it'll
probably never select CONFIG_MCA anyway.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: replace hardcoded number
Glauber Costa [Fri, 11 Jul 2008 19:06:40 +0000]
x86: replace hardcoded number

Replace "4" in time_32.c code by sizeof(long).
This way, it can work on x86_64 too.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: rename timer_event_interrupt to timer_interrupt
Glauber Costa [Fri, 11 Jul 2008 18:25:13 +0000]
x86: rename timer_event_interrupt to timer_interrupt

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: make init_ISA_irqs nonstatic
Glauber Costa [Fri, 11 Jul 2008 18:12:39 +0000]
x86: make init_ISA_irqs nonstatic

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: factor out irq initialization for x86_64
Glauber Costa [Fri, 11 Jul 2008 18:08:39 +0000]
x86: factor out irq initialization for x86_64

Provide apic_intr_init and smp_intr_init functions.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: bind irq0 irq data to cpu0
Glauber Costa [Fri, 11 Jul 2008 17:21:29 +0000]
x86: bind irq0 irq data to cpu0

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: use user_mode_vm instead of user_mode
Glauber Costa [Fri, 11 Jul 2008 17:10:13 +0000]
x86: use user_mode_vm instead of user_mode

For x86_64, it does not really matter. But makes the
code equal to i386.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: remove SEGMENT_IS_FLAT_CODE
Glauber Costa [Fri, 11 Jul 2008 17:00:14 +0000]
x86: remove SEGMENT_IS_FLAT_CODE

There are no users in the kernel.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: use frame pointer information on x86_64 profile_pc
Glauber Costa [Fri, 11 Jul 2008 16:53:43 +0000]
x86: use frame pointer information on x86_64 profile_pc

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: set bp field in pt_regs properly
Glauber Costa [Thu, 14 Aug 2008 20:33:12 +0000]
x86: set bp field in pt_regs properly

Save rbp twice: One is for marking the stack frame, as usual (already
there), and the other, to fill pt_regs properly. This is because bx
comes right before the last saved register in that structure, and not
bp. If the base pointer were in the place bx is today, this would not
be needed.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: coalesce tests
Glauber Costa [Fri, 11 Jul 2008 16:48:07 +0000]
x86: coalesce tests

Coalesce v8086_mode and user_mode into a single
user_mode_vm() test.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: use user_mode macro
Glauber Costa [Fri, 11 Jul 2008 16:45:46 +0000]
x86: use user_mode macro

Instead of using SEGMENT_IS_KERNEL_CODE, use the
"user_mode" macro, which can play the same role. Delete
the former, since it now lacks any user.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: cpu don't print duplicated vendor string
Yinghai Lu [Sat, 20 Sep 2008 01:41:16 +0000]
x86: cpu don't print duplicated vendor string

Some CPUs have vendor string in the middle of model_id instead of beginning

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: make mm/gup.c more virtualization friendly
Jan Beulich [Wed, 17 Sep 2008 15:48:17 +0000]
x86: make mm/gup.c more virtualization friendly

Since pte_flags() is much cheaper than pte_val() in some virtualized
environments (namely, Xen), use the former whereever possible.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: "Nick Piggin" <npiggin@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86-64: fix combining of regions in init_memory_mapping()
Jan Beulich [Fri, 12 Sep 2008 14:43:04 +0000]
x86-64: fix combining of regions in init_memory_mapping()

When nr_range gets decremented, the same slot must be considered for
coalescing with its new successor again.

The issue is apparently pretty benign to native code, but surfaces as a
boot time crash in our forward ported Xen tree (where the page table
setup overall works differently than in native).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: smpboot - check if we have ESR register in wakeup_secondary_cpu
Cyrill Gorcunov [Sun, 14 Sep 2008 17:58:49 +0000]
x86: smpboot - check if we have ESR register in wakeup_secondary_cpu

We should check if we have ESR register before reading from it.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: add memory clobber in switch_to()
Vegard Nossum [Sun, 14 Sep 2008 17:03:53 +0000]
x86: add memory clobber in switch_to()

Segment registers are reloaded, so we should add a memory clobber. The
generated assembly code is identical in my tests, but this doesn't mean
it is necessarily true for all configurations/compilers.

x86_64 already has the memory clobber.

Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: print out EBDA/lowmem address
Ingo Molnar [Mon, 15 Sep 2008 06:26:15 +0000]
x86: print out EBDA/lowmem address

it's useful for debugging purposes to know the location of the EBDA.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: check dsdt before find oem table for es7000, v2
Yinghai Lu [Sun, 14 Sep 2008 09:33:14 +0000]
x86: check dsdt before find oem table for es7000, v2

v2: use __acpi_unmap_table()

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86-64: don't check for map replacement
Jeremy Fitzhardinge [Sun, 7 Sep 2008 22:21:17 +0000]
x86-64: don't check for map replacement

The check prevents flags on mappings from being changed, which is not
desireable.  There's no need to check for replacing a mapping, and
x86-32 does not do this check.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: use early_memremap() in setup.c
Jeremy Fitzhardinge [Sun, 7 Sep 2008 22:21:16 +0000]
x86: use early_memremap() in setup.c

The remappings in setup.c are all just ordinary memory, so use
early_memremap() rather than early_ioremap().

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: add early_memremap()
Jeremy Fitzhardinge [Sun, 7 Sep 2008 22:21:15 +0000]
x86: add early_memremap()

early_ioremap() is also used to map normal memory when constructing
the linear memory mapping.  However, since we sometimes need to be able
to distinguish between actual IO mappings and normal memory mappings,
add a early_memremap() call, which maps with PAGE_KERNEL (as opposed
to PAGE_KERNEL_IO for early_ioremap()), and use it when constructing
pagetables.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: remove duplicate early_ioremap declarations
Jeremy Fitzhardinge [Sun, 7 Sep 2008 22:21:14 +0000]
x86: remove duplicate early_ioremap declarations

early_ioremap() is redeclared in several places; remove them.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: add _PAGE_IOMAP pte flag for IO mappings
Jeremy Fitzhardinge [Sun, 7 Sep 2008 22:21:13 +0000]
x86: add _PAGE_IOMAP pte flag for IO mappings

Use one of the software-defined PTE bits to indicate that a mapping is
intended for an IO address.  On native hardware this is irrelevent,
since a physical address is a physical address.  But in a virtual
environment, physical addresses are also virtualized, so there needs
to be some way to distinguish between pseudo-physical addresses and
actual hardware addresses; _PAGE_IOMAP indicates this intent.

By default, __supported_pte_mask masks out _PAGE_IOMAP, so it doesn't
even appear in the final pagetable.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: trace_hardirqs_fixup should now not be necessary: irqs are off.
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:18 +0000]
i386: trace_hardirqs_fixup should now not be necessary: irqs are off.

The exception handlers in entry_32.S should now all call
TRACE_IRQS_OFF before calling the C code. The calls to
trace_hardirqs_fixup should now be unnecessary. Remove them.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: add TRACE_IRQS_OFF for the exception 3 (int3)
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:17 +0000]
i386: add TRACE_IRQS_OFF for the exception 3 (int3)

At this point interrupts are off, so let's inform the tracing
code of that fact before calling into C.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: add TRACE_IRQS_OFF for the nmi
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:16 +0000]
i386: add TRACE_IRQS_OFF for the nmi

At this point interrupts are off, so let's inform the tracing
code of that fact before calling into C.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: add TRACE_IRQS_OFF for exception 1 (debug)
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:15 +0000]
i386: add TRACE_IRQS_OFF for exception 1 (debug)

At this point interrupts are off, so let's inform the tracing
code of that fact before calling into C.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: add TRACE_IRQS_OFF to entry_32.S in 'error_code'
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:14 +0000]
i386: add TRACE_IRQS_OFF to entry_32.S in 'error_code'

Many exceptions use the same code path via the label 'error_code'
in entry_32.S. At this point interrupts are off, so let's inform
the tracing code of that fact before calling into C.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: remove temporary DO_TRAP macros, expanding the last one used
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:13 +0000]
i386: remove temporary DO_TRAP macros, expanding the last one used

Only one use of the DO_TRAP macros remains. Expand that one and
remove the macros now.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 19 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:12 +0000]
i386: convert hardware exception 19 to an interrupt gate

Handle SIMD coprocessor exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 18 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:11 +0000]
i386: convert hardware exception 18 to an interrupt gate

Handle machine check exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 17 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:10 +0000]
i386: convert hardware exception 17 to an interrupt gate

Handle alignment check exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 16 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:09 +0000]
i386: convert hardware exception 16 to an interrupt gate

Handle coprocessor error exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 15 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:08 +0000]
i386: convert hardware exception 15 to an interrupt gate

Handle exception 15 with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 13 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:07 +0000]
i386: convert hardware exception 13 to an interrupt gate

Handle general protection exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 12 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:06 +0000]
i386: convert hardware exception 12 to an interrupt gate

Handle stack segment exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 11 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:05 +0000]
i386: convert hardware exception 11 to an interrupt gate

Handle segment not present exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 10 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:04 +0000]
i386: convert hardware exception 10 to an interrupt gate

Handle invalid TSS exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 9 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:03 +0000]
i386: convert hardware exception 9 to an interrupt gate

Handle coprocessor segment overrun exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 7 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:02 +0000]
i386: convert hardware exception 7 to an interrupt gate

Handle no coprocessor exception with interrupt initially off.

device_not_available in entry_32.S calls either math_state_restore
or math_emulate. This patch adds an extra indirection to be
able to re-enable interrupts explicitly in traps_32.c

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 6 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:01 +0000]
i386: convert hardware exception 6 to an interrupt gate

Handle invalid opcode exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 5 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:56:00 +0000]
i386: convert hardware exception 5 to an interrupt gate

Handle bounds exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 4 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:55:59 +0000]
i386: convert hardware exception 4 to an interrupt gate

Handle overflow exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: expand exception 3 DO_TRAP macro
Alexander van Heukelum [Tue, 9 Sep 2008 19:55:58 +0000]
i386: expand exception 3 DO_TRAP macro

The int3 exception was already takes as an interrupt and
do_int3 does not fit in the new DO_ERROR macro. This patch
just expands the DO_TRAP macro and rearranges the code a
bit.

No functional changes intended.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: convert hardware exception 0 to an interrupt gate
Alexander van Heukelum [Tue, 9 Sep 2008 19:55:57 +0000]
i386: convert hardware exception 0 to an interrupt gate

Handle divide error exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: prepare to convert exceptions to interrupts
Alexander van Heukelum [Tue, 9 Sep 2008 19:55:56 +0000]
i386: prepare to convert exceptions to interrupts

There is some macro magic in traps_32.c to construct standard
exception dispatch functions. This patch renames the DO_ERROR-
like macros to DO_TRAP, and introduces new DO_ERROR ones that
conditionally reenable interrupts explicitly, like x86_64.

No code changes.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoi386: remove kprobes' restore_interrupts in favour of conditional_sti
Alexander van Heukelum [Tue, 9 Sep 2008 19:55:55 +0000]
i386: remove kprobes' restore_interrupts in favour of conditional_sti

x86_64 uses a helper function conditional_sti in traps_64.c which
is equal to restore_interrupts in kprobes.h. The only user of
restore_interrupts is in traps_32.c. Introduce conditional_sti
for i386 and remove restore_interrupts.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: rename discontig_32.c to numa_32.c
Yinghai Lu [Wed, 10 Sep 2008 06:34:17 +0000]
x86: rename discontig_32.c to numa_32.c

name it in line with its purpose.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoarch/x86/kernel/smpboot.c: Clarify when irq processing begins.
Manfred Spraul [Sun, 7 Sep 2008 09:29:58 +0000]
arch/x86/kernel/smpboot.c: Clarify when irq processing begins.

Secondary cpus start with local interrupts disabled.
start_secondary() first initializes the new cpu, then it enables the
local interrupts. (although interrupts are enabled within smp_callin()
as well).

Right now, the local interrupts are enabled as a side effect of calling
ipi_call_lock_irq().

The attached patch clarifies when local interrupts are enabled.

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86-64: slightly stream-line 32-bit syscall entry code
Jan Beulich [Fri, 29 Aug 2008 12:21:11 +0000]
x86-64: slightly stream-line 32-bit syscall entry code

Avoid updating registers or memory twice as well as needlessly loading
or copying registers.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86-64: reduce boot fixmap space
Jan Beulich [Fri, 29 Aug 2008 12:14:30 +0000]
x86-64: reduce boot fixmap space

Just like for 32-bit - as 256 entries are needed, aligning to a
256-entry boundary is sufficient and still guarantees the single pte
table requirement.

Likewise move up __end_of_permanent_fixed_addresses, to match 32-bit.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoMAINTAINERS: remove colon from headings
Randy Dunlap [Sun, 12 Oct 2008 23:11:58 +0000]
MAINTAINERS: remove colon from headings

Remove ending ':' from some of the Topic lines for consistency.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMAINTAINERS: add F: and acronyms
Randy Dunlap [Sun, 12 Oct 2008 23:11:45 +0000]
MAINTAINERS: add F: and acronyms

Add F: definition since it is being used.

Expand acronyms or add them so that users of MAINTAINERS file can find
entries more easily.

Correct driver spelling.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMAINTAINERS: alpha sort
Randy Dunlap [Sun, 12 Oct 2008 23:11:31 +0000]
MAINTAINERS: alpha sort

Sorted case-insensitive (sort -f).
Groups that begin with ARM, INTEL, etc. not sorted.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>