Impact: cleanup

Most subarchitectures want to disable the APIC ESR (Error Status Register),
because they generally have hardware hacks that wrap standard CPUs into
a bigger system and hence the APIC bus is quite non-standard and weirdnesses
(lockups) have been seen with ESR reporting.

Remove the esr_disable macros and put the desired flag into each
subarchitecture's genapic template directly.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: cleanup

use apic->target_cpus() directly instead of the TARGET_CPUS wrapper.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: cleanup

Clean up all the target_cpus() namespace overlap that exists
between bigsmp, es7000, mach-default, numaq and summit - by
separating the different functions into different names.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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

Impact: cleanup

They were only used in a single place and obscured the apic_es7000
driver template.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: cleanup

They were only used in a single place and obscured the apic_bigsmp
driver template.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: cleanup

They were only used in a single place and obscured the apic_numaq template.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: cleanup

They were only used in a single place and obscured the apic_summit template.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: cleanup

They were only used in a single place and obscured the apic_default template.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Remove the wrapper macros IRQ_DEST_MODE and IRQ_DELIVERY_MODE.

The typical 32-bit and the 64-bit build all dereference via the genapic,
so it's pointless to hide that indirection via these ugly macros.

Furthermore, it also obscures subarchitecture details.

So replace it with apic->irq_dest_mode / etc. accesses.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

int_delivery_mode is supposed to mean 'interrupt delivery mode', but
it's quite a misnomer as 'int' we usually think of as an integer type ...

The standard naming for such attributes is 'irq' - so rename the following
fields and macros:

 int_delivery_mode => irq_delivery_mode
 INT_DELIVERY_MODE => IRQ_DELIVERY_MODE
 int_dest_mode     => irq_dest_mode
 INT_DEST_MODE     => IRQ_DEST_MODE
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: cleanup

x86 subarchitectures each defined a "apic_id_registered()" method,
which could be an inline function depending on which subarch we build
for, and which was also the name of a genapic field.

Untangle this namespace spaghetti by giving each of the instances
a separate name.

Also remove wrapper macro obfuscation.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: refactor code

x86 subarchitectures each defined a "acpi_madt_oem_check()" method,
which could be an inline function, or an extern, or a static function,
and which was also the name of a genapic field.

Untangle this namespace spaghetti by setting ->acpi_madt_oem_check()
to NULL on those subarchitectures that have no detection quirks,
and rename the other ones (summit, es7000) that do.

Also change default_acpi_madt_oem_check() to handle NULL entries,
and clean its control flow up as well.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

The APIC_INIT() / APICFUNC / IPIFUNC macros were ugly and obfuscated
the true identity of various APIC driver methods.

Now that they are not used anymore, remove them.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Clean up the APIC driver template:

 - order fields properly
 - use the macro names explicitly (so that they can be renamed later)
 - fill in NULL entries as well
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Clean up the APIC driver template:

 - order fields properly
 - use the macro names explicitly (so that they can be renamed later)
 - fill in NULL entries as well
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Clean up the APIC driver template:

 - order fields properly
 - use the macro names explicitly (so that they can be renamed later)
 - fill in NULL entries as well
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Clean up the APIC driver template:

 - order fields properly
 - use the macro names explicitly (so that they can be renamed later)
 - fill in NULL entries as well
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Clean up the APIC driver template:

 - order fields properly
 - use the macro names explicitly (so that they can be renamed later)
 - fill in NULL entries as well
Signed-off-by: Ingo Molnar <mingo@elte.hu>

- reorder fields so that they appear in struct genapic field ordering

- add zero-initialized fields too so that it's apparent which functionality
  is default / missing.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

- reorder fields so that they appear in struct genapic field ordering

- add zero-initialized fields too so that it's apparent which functionality
  is default / missing.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

- reorder fields so that they appear in struct genapic field ordering

- add zero-initialized fields too so that it's apparent which functionality
  is default / missing.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

- reorder fields so that they appear in struct genapic field ordering

- add zero-initialized fields too so that it's apparent which functionality
  is default / missing.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

- reorder fields so that they appear in struct genapic field ordering

- add zero-initialized fields too so that it's apparent which functionality
  is default / missing.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Rename genapic-> to apic-> references because in a future chagne we'll
open-code all the indirect calls (instead of obscuring them via macros),
so we want this reference to be as short as possible.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

64-bit x86 uses the IPI callbacks even on UP - so provide them
generally.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Unify genapic.h some more.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Unify remaining bits of genapic_32/64.h.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Move over the (now identical) struct genapic definitions from
genapic_32/64.h to genapic.h.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: pre unification cleanup

Make genapic_32.h similar to genapic_64.h: reorder fields, unify types
and bring in new entries.

No existing functionality is affected.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Impact: pre unification cleanup

Make genapic_64.h similar to genapic_32.h: reorder fields, unify types
and bring in new entries.

No existing functionality is affected.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branches 'x86/asm', 'x86/cleanups', 'x86/cpudetect', 'x86/debug', 'x86/doc', 'x86/header-fixes', 'x86/mm', 'x86/paravirt', 'x86/pat', 'x86/setup-v2', 'x86/subarch', 'x86/uaccess' and 'x86/urgent' into x86/core

Conflicts:
	kernel/irq/handle.c

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/mm: Fix handling of _PAGE_COHERENT in BAT setup code
  powerpc/pseries: Correct VIO bus accounting problem in CMO env.
  powerpc: More printing warning fixes for the l64 to ll64 conversion
  powerpc: Remove arch/ppc cruft from Kconfig
  powerpc: Printing fix for l64 to ll64 conversion: phyp_dump.c
  powerpc/embedded6xx: Update defconfigs
  powerpc/8xx: Update defconfigs
  powerpc/86xx: Update defconfigs
  powerpc/83xx: Update defconfigs
  powerpc/85xx: Update defconfigs
  powerpc/mpc8313erdb: fix kernel panic because mdio device is not probed
  powerpc/4xx: Update multi-board PowerPC 4xx defconfigs
  powerpc/44x: Update PowerPC 44x defconfigs
  powerpc/40x: Update PowerPC 40x defconfigs
  powerpc/85xx: Fix typo in mpc8572ds dts
  powerpc/44x: Warp patches for the new NDFC driver
  powerpc/4xx: DTS: Add Add'l SDRAM0 Compatible and Interrupt Info

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: fix 5329 ColdFire periphal addressing
  uclinux: add process name to allocation error message
  m68knommu: correct the mii calculations for 532x ColdFire FEC
  m68knommu: add ColdFire M532x to the FEC configuration options
  m68knommu: fix syscall restarting
  m68knommu: remove the obsolete and long unused comempci chip support
  m68knommu: remove the no longer used PCI support option
  m68knommu: remove obsolete and unused eLIA board
  m68knommu: set NO_DMA
  m68knommu: fix cache flushing for the 527x ColdFire processors
  m68knommu: fix ColdFire 5272 serial baud rates in mcf.c
  m68knommu: use one exist from execption

Commit d7b1956f ("DMI: Introduce
dmi_first_match to make the interface more flexible") introduced compile
errors like the following when !CONFIG_DMI

    drivers/ata/sata_sil.c: In function 'sil_broken_system_poweroff':
    drivers/ata/sata_sil.c:713: error: implicit declaration of function 'dmi_first_match'
    drivers/ata/sata_sil.c:713: warning: initialization makes pointer from integer without a cast

We just need a dummy version of dmi_first_match() to fix this all up.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Schedule a vblank signal, kill the process, and we'll go walking over freed
memory.  Given that no open-source userland exists using this, nor have I
ever heard of a consumer, just let this code die.
Signed-off-by: Eric Anholt <eric@anholt.net>
Requested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

_PAGE_COHERENT is now always set in _PAGE_RAM resp. PAGE_KERNEL.
Thus it has to be masked out, if the BAT mapping should be non
cacheable or CPU_FTR_NEED_COHERENT is not set.

This will work on normal SMP setups because we force-set
CPU_FTR_NEED_COHERENT as part of CPU_FTR_COMMON on SMP.
Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

In the VIO bus code the wrappers for dma alloc_coherent and free_coherent
calls are rounding to IOMMU_PAGE_SIZE.  Taking a look at the underlying
calls, the actual mapping is promoted to PAGE_SIZE.  Changing the
rounding in these two functions fixes under-reporting the entitlement
used by the system.  Without this change, the system could run out of
entitlement before it believes it has and incur mapping failures at the
firmware level.

Also in the VIO bus code, the wrapper for dma map_sg is not exiting in
an error path where it should.  Rather than fall through to code for the
success case, this patch adds the return that is needed in the error path.
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>