x86: Use asm-goto to implement mutex fast path on x86-64

The new implementation allows the compiler to better optimize the code; the
original implementation is still used when the kernel is compiled with older
versions of gcc that don't support asm-goto.

Compiling with gcc 4.7.3, the original mutex_lock() is 60 bytes with the fast
path taking 16 instructions; the new mutex_lock() is 42 bytes, with the fast
path taking 12 instructions.

The original mutex_unlock() is 24 bytes with the fast path taking 7
instructions; the new mutex_unlock() is 25 bytes (because the compiler used
a 2-byte ret) with the fast path taking 4 instructions.

The two versions of the functions are included below for reference.

Old:
ffffffff817742a0 <mutex_lock>:
ffffffff817742a0:       55                      push   %rbp
ffffffff817742a1:       48 89 e5                mov    %rsp,%rbp
ffffffff817742a4:       48 83 ec 10             sub    $0x10,%rsp
ffffffff817742a8:       48 89 5d f0             mov    %rbx,-0x10(%rbp)
ffffffff817742ac:       48 89 fb                mov    %rdi,%rbx
ffffffff817742af:       4c 89 65 f8             mov    %r12,-0x8(%rbp)
ffffffff817742b3:       e8 28 15 00 00          callq  ffffffff817757e0 <_cond_resched>
ffffffff817742b8:       48 89 df                mov    %rbx,%rdi
ffffffff817742bb:       f0 ff 0f                lock decl (%rdi)
ffffffff817742be:       79 05                   jns    ffffffff817742c5 <mutex_lock+0x25>
ffffffff817742c0:       e8 cb 04 00 00          callq  ffffffff81774790 <__mutex_lock_slowpath>
ffffffff817742c5:       65 48 8b 04 25 c0 b7    mov    %gs:0xb7c0,%rax
ffffffff817742cc:       00 00
ffffffff817742ce:       4c 8b 65 f8             mov    -0x8(%rbp),%r12
ffffffff817742d2:       48 89 43 18             mov    %rax,0x18(%rbx)
ffffffff817742d6:       48 8b 5d f0             mov    -0x10(%rbp),%rbx
ffffffff817742da:       c9                      leaveq
ffffffff817742db:       c3                      retq

ffffffff81774250 <mutex_unlock>:
ffffffff81774250:       55                      push   %rbp
ffffffff81774251:       48 c7 47 18 00 00 00    movq   $0x0,0x18(%rdi)
ffffffff81774258:       00
ffffffff81774259:       48 89 e5                mov    %rsp,%rbp
ffffffff8177425c:       f0 ff 07                lock incl (%rdi)
ffffffff8177425f:       7f 05                   jg     ffffffff81774266 <mutex_unlock+0x16>
ffffffff81774261:       e8 ea 04 00 00          callq  ffffffff81774750 <__mutex_unlock_slowpath>
ffffffff81774266:       5d                      pop    %rbp
ffffffff81774267:       c3                      retq

New:
ffffffff81774920 <mutex_lock>:
ffffffff81774920:       55                      push   %rbp
ffffffff81774921:       48 89 e5                mov    %rsp,%rbp
ffffffff81774924:       53                      push   %rbx
ffffffff81774925:       48 89 fb                mov    %rdi,%rbx
ffffffff81774928:       e8 a3 0e 00 00          callq  ffffffff817757d0 <_cond_resched>
ffffffff8177492d:       f0 ff 0b                lock decl (%rbx)
ffffffff81774930:       79 08                   jns    ffffffff8177493a <mutex_lock+0x1a>
ffffffff81774932:       48 89 df                mov    %rbx,%rdi
ffffffff81774935:       e8 16 fe ff ff          callq  ffffffff81774750 <__mutex_lock_slowpath>
ffffffff8177493a:       65 48 8b 04 25 c0 b7    mov    %gs:0xb7c0,%rax
ffffffff81774941:       00 00
ffffffff81774943:       48 89 43 18             mov    %rax,0x18(%rbx)
ffffffff81774947:       5b                      pop    %rbx
ffffffff81774948:       5d                      pop    %rbp
ffffffff81774949:       c3                      retq

ffffffff81774730 <mutex_unlock>:
ffffffff81774730:       48 c7 47 18 00 00 00    movq   $0x0,0x18(%rdi)
ffffffff81774737:       00
ffffffff81774738:       f0 ff 07                lock incl (%rdi)
ffffffff8177473b:       7f 0a                   jg     ffffffff81774747 <mutex_unlock+0x17>
ffffffff8177473d:       55                      push   %rbp
ffffffff8177473e:       48 89 e5                mov    %rsp,%rbp
ffffffff81774741:       e8 aa ff ff ff          callq  ffffffff817746f0 <__mutex_unlock_slowpath>
ffffffff81774746:       5d                      pop    %rbp
ffffffff81774747:       f3 c3                   repz retq

Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Link: http://lkml.kernel.org/r/1372420245-60021-1-git-send-email-wedsonaf@gmail.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Merge remote-tracking branch 'origin/x86/fpu' into queue/x86/cpu

Use the union of 3.10 x86/cpu and x86/fpu as baseline.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
x86, cpufeature: Use new CC_HAVE_ASM_GOTO

... for checking for "asm goto" compiler support. It is more explicit
this way and we cover the cases where distros have backported that
support even to gcc versions < 4.5.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1372437701-13351-1-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
x86: Fix override new_cpu_data.x86 with 486

We should set X86 to 486 before use cpuid to detect the cpu type, if
we set X86 to 486 after cpuid, then we will get 486 until cpu_detect
runs.

Signed-off-by: Wang YanQing <udknight@gmail.com>
Link: http://lkml.kernel.org/r/20130628144516.GA2177@udknight
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
mm/cma: Move dma contiguous changes into a seperate config

We want to use CMA for allocating hash page table and real mode area for
PPC64. Hence move DMA contiguous related changes into a seperate config
so that ppc64 can enable CMA without requiring DMA contiguous.

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[removed defconfig changes]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
ALSA: hda - Add GPIO control to AD1884 HP fixup

The AD1884 HP laptop/mobile quirks control GPIO1 bit as the primary
mute as well.  Add the similar control to ad1884 fixup for auto
parser, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Add fixup for Lenovo Thinkpad with AD1984 codec

Ported from the static quirk (model=thinkpad).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Add fixup for HP TouchSmart with AD1984A codec

Ported from the static quirk.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Remove static quirks for AD1882

Now the generic parser can work stably enough, we can get rid of the
static quirks.  Let's start from AD1882.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Remove static quirks for AD1884/1984 & variants

Since the necessary device-specific fixups for Thinkpad and HP devices
have been already ported, we can remove all static quirks for AD1884,
AD1984, AD1884A and AD1984A codecs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Remove static quirks for AD1981 and AD1983 codecs

These are relatively easy ones, as we already converted all static
quirks to the generic parser.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Remove static quirks for AD1988 codecs

For removing static quirks for AD1988 variants, a new fixup defining
the 6stack pinconfig has been added for the buggy BIOS.  Other than
that, we can cut off straightforwardly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Convert the static quirk for Samsung Q1 Ultra

... to a fixup entry.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Convert static quirks for AD1986A Samsung laptops

Just need to override some pin-configurations.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Drop static quirks for other AD1986A Samsung machines

BIOS on Samsung R55, M55 and M50 provide the proper pin-configs,
so we can remove the corresponding static quirk entries gracefully.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Drop static quirk for Toshiba Satellite L40-10Q

The BIOS provides good pin-configurations, so we can drop the static
quirk now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Drop a few other static quirks for AD1986A

Most of ASUS laptops and Lenovo N100 provide proper BIOS pin-configs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Remove static quirks for AD1986A codec

Finally all the static quirks in patch_analog.c are reduced by this
patch.  As machines with AD1986A codec are all old and often their
BIOS are buggy, we need to keep at least a few static pin conifgs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hdspm - Add missing defines for RME AIO and RayDAT

The driver did not support all possible configurations. These defines
will be used by later commits to add the missing functionality.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hdspm - Introduce hdspm_is_raydat_or_aio()

RME RayDAT and AIO cards are new designs with different register
settings. Since we need to distinguish them from older cards multiple
times in the driver, refactor the code into a separate helper function.

No functional change intended.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>