Commit Graph

8 Commits

Author SHA1 Message Date
Rakib Mullick
7473727be8 x86, apic: Fix false positive section mismatch in numaq_32.c
The variable apic_numaq placed in noninit section references the
function wakeup_secondary_cpu_via_nmi(), which is in __cpuinit
section. Thus causes a section mismatch warning. To avoid such
mismatch we mark apic_numaq as __refdata.

We were warned by the following warning:

  WARNING: arch/x86/kernel/built-in.o(.data+0x932c): Section mismatch in
  reference from the variable apic_numaq to the function
  .cpuinit.text:wakeup_secondary_cpu_via_nmi()

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
LKML-Reference: <b9df5fa10907120407p6b4f67dtf4d563155488188a@mail.gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-13 11:03:27 +02:00
Rusty Russell
73e907de7d cpumask: remove x86 cpumask_t uses.
Impact: cleanup

We are removing cpumask_t in favour of struct cpumask: mainly as a
marker of what code is now CONFIG_CPUMASK_OFFSTACK-safe.

The only non-trivial change here is vector_allocation_domain():
explicitly clear the mask and set the first word, rather than using
assignment.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-03-13 14:49:57 +10:30
Rusty Russell
5c6cb5e2b1 cpumask: remove cpumask_t assignment from vector_allocation_domain()
Impact: cleanup

It's not legal to do assignments into cpumask_var_t; they will soon be of
variable length.

So explicitly clear the mask and set the first word, rather than using
assignment.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-03-13 14:49:56 +10:30
Rusty Russell
101aaca1f3 cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL.: x86
Impact: cleanup

(Thanks to Al Viro for reminding me of this, via Ingo)

CPU_MASK_ALL is the (deprecated) "all bits set" cpumask, defined as so:

	#define CPU_MASK_ALL (cpumask_t) { { ... } }

Taking the address of such a temporary is questionable at best,
unfortunately 321a8e9d (cpumask: add CPU_MASK_ALL_PTR macro) added
CPU_MASK_ALL_PTR:

	#define CPU_MASK_ALL_PTR (&CPU_MASK_ALL)

Which formalizes this practice.  One day gcc could bite us over this
usage (though we seem to have gotten away with it so far).

So replace everywhere which used &CPU_MASK_ALL or CPU_MASK_ALL_PTR
with the modern "cpu_all_mask" (a real const struct cpumask *), and remove
CPU_MASK_ALL_PTR altogether.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Mike Travis <travis@sgi.com>
2009-03-13 14:49:47 +10:30
Jiri Slaby
b6122b3843 x86_32: apic/numaq_32, fix section mismatch
Remove __cpuinitdata section placement for translation_table
structure, since it is referenced from a functions within .text.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
2009-03-02 12:00:25 +01:00
Ingo Molnar
1f5bcabf1b x86: apic: simplify secondary CPU wakeup methods
Impact: cleanup

- rename apic->wakeup_cpu  to apic->wakeup_secondary_cpu, to
  make it apparent that this is an SMP-only method

- handle NULL ->wakeup_secondary_cpus to mean the default INIT
  wakeup sequence - this allows simplification of the APIC
  driver templates.

Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-26 13:58:26 +01:00
Yinghai Lu
2b6163bf57 x86: remove update_apic from x86_quirks
Impact: cleanup

x86_quirks->update_apic() calling looks crazy. so try to remove it:

 1. every apic take wakeup_cpu member directly
 2. separate es7000_apic to es7000_apic_cluster
 3. use uv_wakeup_cpu directly

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-26 06:32:25 +01:00
Ingo Molnar
2a05180fe2 x86, apic: move remaining APIC drivers to arch/x86/kernel/apic/*
Move the 32-bit extended-arch APIC drivers to arch/x86/kernel/apic/
too, and rename apic_64.c to probe_64.c.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-17 20:35:47 +01:00