Commit Graph

93798 Commits

Author SHA1 Message Date
Bartlomiej Zolnierkiewicz
d703b79e56 ide-cs: manage I/O resources in driver
* Make idecs_register() return pointer to hwif structure instead of
  hwif's index.

* Store pointer to hwif structure instead of hwif's index in ide_info_t
  (fixes ide-cs for IDE[6-9]_MAJOR major numbers).

* Remove no longer needed ide_major[].

* Tell IDE layer to not manage resources by setting hwif->mmio flag.

* Use {request,release}_region() for resources management.

* Use driver name for resources management.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:17 +02:00
Bartlomiej Zolnierkiewicz
134d4548a7 ide-pnp: manage I/O resources in driver
* Tell IDE layer to not manage resources by setting hwif->mmio flag.

* Use {request,release}_region() for resources management.

* Use driver name for resources management.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:16 +02:00
Bartlomiej Zolnierkiewicz
7a2199f341 qd65xx: cleanup qd_probe()
* Replace 'if ()'-s by 'switch ()' block.

* Merge common code for QD6500/QD6580A/QD6580B.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:16 +02:00
Bartlomiej Zolnierkiewicz
0bfeee7d41 ide: use ide_legacy_device_add() for qd65xx (take 2)
* Add 'unsigned long config' argument to ide_legacy_device_add()
  for setting hwif->config_data.

* Use ide_find_port_slot() instead of ide_find_port() in
  ide_legacy_device_add().

* Handle IDE_HFLAG_QD_2ND_PORT and IDE_HFLAG_SINGLE host flags in
  ide_legacy_device_add().

* Convert qd65xx host driver to use ide_legacy_device_add().

v2:
* Update ali14xx, dtc2278, ht6560b and umc8672 host drivers.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:16 +02:00
Bartlomiej Zolnierkiewicz
3b36f66b81 ide: add ide_legacy_device_add() helper
Add ide_legacy_device_add() helper for use by legacy VLB host drivers
(+ convert them to use it).

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:16 +02:00
Bartlomiej Zolnierkiewicz
e53cd458d5 ide: remove ->noprobe field from ide_hwif_t
Update IDE PMAC host driver to use drive->noprobe instead of hwif->noprobe
and remove hwif->noprobe completely (it is always set to zero now).

There should be no functional changes caused by this patch.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:16 +02:00
Borislav Petkov
e5e076a354 ide-cd: fix remaining checkpatch.pl issues
Some of them are:
WARNING: braces {} are not necessary for single statement blocks
CHECK: multiple assignments should be avoided
WARNING: printk() should include KERN_ facility level
WARNING: no space between function name and open parenthesis '('

[bart: minor fixups]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:15 +02:00
Borislav Petkov
83c8565dcc ide-cd: shorten lines longer than 80 columns
[bart: minor fixups]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:15 +02:00
Borislav Petkov
5a3ea3b424 ide-cd: fixup comments
[bart: minor fixups, md5sum checked]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:15 +02:00
Borislav Petkov
5e657a9e29 ide-cd: put all proc-related code at one place
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:15 +02:00
Borislav Petkov
9aba468e4a ide-cd: include proper headers
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:15 +02:00
Bartlomiej Zolnierkiewicz
ac95beedf8 ide: add struct ide_port_ops (take 2)
* Move hooks for port/host specific methods from ide_hwif_t to
  'struct ide_port_ops'.

* Add 'const struct ide_port_ops *port_ops' to 'struct ide_port_info'
  and ide_hwif_t.

* Update host drivers and core code accordingly.

While at it:

* Rename ata66_*() cable detect functions to *_cable_detect() to match
  the standard naming. (Suggested by Sergei Shtylyov)

v2:
* Fix build for bast-ide. (Noticed by Andrew Morton)

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 22:25:14 +02:00
Huang, Ying
fb88438127 x86, boot: Document for linked list of struct setup_data
Documentation for linked list of struct setup_data.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26 21:34:42 +02:00
Huang, Ying
c14b2adf19 x86, boot: export linked list of struct setup_data via debugfs
Export linked list of struct setup_data via debugfs.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26 21:34:42 +02:00
Huang, Ying
8b664aa66e x86, boot: add linked list of struct setup_data
This patch adds a field of 64-bit physical pointer to NULL terminated
single linked list of struct setup_data to real-mode kernel
header. This is used as a more extensible boot parameters passing
mechanism.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26 21:34:42 +02:00
Huang, Ying
50eae2a7c9 x86, boot: add free_early to early reservation machanism
Add free_early to early reservation mechanism - this way early bootup
failure paths can stop wasting memory.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-26 21:34:42 +02:00
Venki Pallipadi
0124cecfc8 x86, PAT: disable /dev/mem mmap RAM with PAT
disable /dev/mem mmap of RAM with PAT. It makes things safer and
eliminates aliasing. A future improvement would be to avoid the
range_is_allowed duplication.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 21:28:29 +02:00
Adrian Bunk
f5093913c0 kbuild: scripts/Makefile.modpost typo fix
-EVIUSER  ;-)

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-04-26 21:08:25 +02:00
Sam Ravnborg
2fa3656829 kbuild: soften MODULE_LICENSE check
Only modules that has other MODULE_* content
shall have the MODULE_LICENSE() tag.

This fixes allmodconfig build on my box.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-04-26 21:07:26 +02:00
Alexander van Heukelum
19870def58 x86, bitops: select the generic bitmap search functions
Introduce GENERIC_FIND_FIRST_BIT and GENERIC_FIND_NEXT_BIT in
lib/Kconfig, defaulting to off. An arch that wants to use the
generic implementation now only has to use a select statement
to include them.

I added an always-y option (X86_CPU) to arch/x86/Kconfig.cpu
and used that to select the generic search functions. This
way ARCH=um SUBARCH=i386 automatically picks up the change
too, and arch/um/Kconfig.i386 can therefore be simplified a
bit. ARCH=um SUBARCH=x86_64 does things differently, but
still compiles fine. It seems that a "def_bool y" always
wins over a "def_bool n"?

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:17 +02:00
Joe Perches
f19dcf4a61 x86: include/asm-x86/pgalloc.h/bitops.h: checkpatch cleanups - formatting only
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:17 +02:00
Alexander van Heukelum
d66462f531 x86: finalize bitops unification
include/asm-x86/bitops_32.h and include/asm-x86/bitops_64.h are now
almost identical. The 64-bit version sets ARCH_HAS_FAST_MULTIPLIER
and has an extra inline function set_bit_string. The define currently
has no influence on the generated code, but it can be argued that
setting it on i386 is the right thing to do anyhow. The addition
of the extra inline function on i386 does not hurt either.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:17 +02:00
Alexander van Heukelum
5245698f66 x86, UML: remove x86-specific implementations of find_first_bit
x86 has been switched to the generic versions of find_first_bit
and find_first_zero_bit, but the original versions were retained.
This patch just removes the now unused x86-specific versions.

also update UML.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:17 +02:00
Alexander van Heukelum
3a48305028 x86: optimize find_first_bit for small bitmaps
Avoid a call to find_first_bit if the bitmap size is know at
compile time and small enough to fit in a single long integer.
Modeled after an optimization in the original x86_64-specific
code.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:17 +02:00
Alexander van Heukelum
2aba6925fd x86: switch 64-bit to generic find_first_bit
Switch x86_64 to generic find_first_bit. The x86_64-specific
implementation is not removed.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Alexander van Heukelum
77b9bd9c49 x86: generic versions of find_first_(zero_)bit, convert i386
Generic versions of __find_first_bit and __find_first_zero_bit
are introduced as simplified versions of __find_next_bit and
__find_next_zero_bit. Their compilation and use are guarded by
a new config variable GENERIC_FIND_FIRST_BIT.

The generic versions of find_first_bit and find_first_zero_bit
are implemented in terms of the newly introduced __find_first_bit
and __find_first_zero_bit.

This patch does not remove the i386-specific implementation,
but it does switch i386 to use the generic functions by setting
GENERIC_FIND_FIRST_BIT=y for X86_32.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Alexander van Heukelum
d57594c203 bitops: use __fls for fls64 on 64-bit archs
Use __fls for fls64 on 64-bit archs. The implementation for
64-bit archs is moved from x86_64 to asm-generic.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Alexander van Heukelum
56a6b1eb7b generic: implement __fls on all 64-bit archs
Implement __fls on all 64-bit archs:

alpha has an implementation of fls64.
	Added __fls(x) = fls64(x) - 1.

ia64 has fls, but not __fls.
	Added __fls based on code of fls.

mips and powerpc have __ilog2, which is the same as __fls.
	Added __fls = __ilog2.

parisc, s390, sh and sparc64:
	Include generic __fls.

x86_64 already has __fls.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Alexander van Heukelum
7d9dff22e8 generic: introduce a generic __fls implementation
Add a generic __fls implementation in the same spirit as
the generic __ffs one. It finds the last (most significant)
set bit in the given long value.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Alexander van Heukelum
12d9c8420b x86: merge the simple bitops and move them to bitops.h
Some of those can be written in such a way that the same
inline assembly can be used to generate both 32 bit and
64 bit code.

For ffs and fls, x86_64 unconditionally used the cmov
instruction and i386 unconditionally used a conditional
branch over a mov instruction. In the current patch I
chose to select the version based on the availability
of the cmov instruction instead. A small detail here is
that x86_64 did not previously set CONFIG_X86_CMOV=y.

Improved comments for ffs, ffz, fls and variations.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Alexander van Heukelum
64970b68d2 x86, generic: optimize find_next_(zero_)bit for small constant-size bitmaps
This moves an optimization for searching constant-sized small
bitmaps form x86_64-specific to generic code.

On an i386 defconfig (the x86#testing one), the size of vmlinux hardly
changes with this applied. I have observed only four places where this
optimization avoids a call into find_next_bit:

In the functions return_unused_surplus_pages, alloc_fresh_huge_page,
and adjust_pool_surplus, this patch avoids a call for a 1-bit bitmap.
In __next_cpu a call is avoided for a 32-bit bitmap. That's it.

On x86_64, 52 locations are optimized with a minimal increase in
code size:

Current #testing defconfig:
	146 x bsf, 27 x find_next_*bit
   text    data     bss     dec     hex filename
   5392637  846592  724424 6963653  6a41c5 vmlinux

After removing the x86_64 specific optimization for find_next_*bit:
	94 x bsf, 79 x find_next_*bit
   text    data     bss     dec     hex filename
   5392358  846592  724424 6963374  6a40ae vmlinux

After this patch (making the optimization generic):
	146 x bsf, 27 x find_next_*bit
   text    data     bss     dec     hex filename
   5392396  846592  724424 6963412  6a40d4 vmlinux

[ tglx@linutronix.de: build fixes ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Alexander van Heukelum
60b6783a04 x86, uml: fix uml with generic find_next_bit for x86
Update UML to use the generic bits too.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Alexander van Heukelum
6fd92b63d0 x86: change x86 to use generic find_next_bit
The versions with inline assembly are in fact slower on the machines I
tested them on (in userspace) (Athlon XP 2800+, p4-like Xeon 2.8GHz, AMD
Opteron 270). The i386-version needed a fix similar to 06024f21 to avoid
crashing the benchmark.

Benchmark using: gcc -fomit-frame-pointer -Os. For each bitmap size
1...512, for each possible bitmap with one bit set, for each possible
offset: find the position of the first bit starting at offset. If you
follow ;). Times include setup of the bitmap and checking of the
results.

		Athlon		Xeon		Opteron 32/64bit
x86-specific:	0m3.692s	0m2.820s	0m3.196s / 0m2.480s
generic:	0m2.622s	0m1.662s	0m2.100s / 0m1.572s

If the bitmap size is not a multiple of BITS_PER_LONG, and no set
(cleared) bit is found, find_next_bit (find_next_zero_bit) returns a
value outside of the range [0, size]. The generic version always returns
exactly size. The generic version also uses unsigned long everywhere,
while the x86 versions use a mishmash of int, unsigned (int), long and
unsigned long.

Using the generic version does give a slightly bigger kernel, though.

defconfig:	   text    data     bss     dec     hex filename
x86-specific:	4738555  481232  626688 5846475  5935cb vmlinux (32 bit)
generic:	4738621  481232  626688 5846541  59360d vmlinux (32 bit)
x86-specific:	5392395  846568  724424 6963387  6a40bb vmlinux (64 bit)
generic:	5392458  846568  724424 6963450  6a40fa vmlinux (64 bit)

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Ingo Molnar
18e413f719 uml: Kconfig cleanup
pointed out by Linus: arch/um/Kconfig.x86_64 should
include arch/x86/Kconfig.cpu instead of defining those
symbols itself.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Ingo Molnar
297e1b256b uml: fix build error
fix:

 arch/um/os-Linux/helper.c: In function 'run_helper':
 arch/um/os-Linux/helper.c:73: error: 'PATH_MAX' undeclared (first use in this function)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 19:21:16 +02:00
Linus Torvalds
4a27214d7b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes:
  x86 PAT: decouple from nonpromisc devmem
  x86 PAT: tone down debugging messages
2008-04-26 09:50:58 -07:00
Linus Torvalds
c837c93a03 Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
  V4L/DVB (7751): ir-kbd-i2c: Save a temporary memory allocation in ir_probe
  V4L/DVB (7750): au0828/ cleanups and fixes
  V4L/DVB (7748): tuner-core: some adjustments at tuner logs, if debug enabled
  V4L/DVB (7746): pvrusb2: make signed one-bit bitfields unsigned
  V4L/DVB (7744): pvrusb2-dvb: add atsc/qam support for Hauppauge pvrusb2 model 751xx
  V4L/DVB (7742): cx88: Add support for the DViCO FusionHDTV_7_GOLD digital modes
  V4L/DVB (7741): s5h1411: Adding support for this ATSC/QAM demodulator
  V4L/DVB (7740): tuner-xc2028.c dubious !x & y
  V4L/DVB (7739): mt312.h: dubious one-bit signed bitfield
  V4L/DVB (7735): Fix compilation for au0828
  V4L/DVB (7734): em28xx: copy and paste error in em28xx_init_isoc
  V4L/DVB (7733): blackbird_find_mailbox negative return ignored in blackbird_initialize_codec()
  V4L/DVB (7732): vivi: fix a warning
2008-04-26 09:49:51 -07:00
Linus Torvalds
d485cb9aa2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-optimized-inlining
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-optimized-inlining:
  generic: make optimized inlining arch-opt-in
  x86: add optimized inlining
2008-04-26 09:48:52 -07:00
Linus Torvalds
1292ebb82c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (61 commits)
  ide: sanitize handling of IDE_HFLAG_NO_SET_MODE host flag
  sis5513: fail early for unsupported chipsets
  it821x: fix kzalloc() failure handling
  qd65xx: use IDE_HFLAG_SINGLE host flag
  qd65xx: always use ->selectproc method
  ide-cd: put proc-related functions together under single ifdef
  ide-cd: Replace __FUNCTION__ with __func__
  IDE: Coding Style fixes to drivers/ide/ide-cd.c
  IDE: Coding Style fixes to drivers/ide/pci/cy82c693.c
  IDE: Coding Style fixes to drivers/ide/pci/it8213.c
  IDE: Coding Style fixes to drivers/ide/ide-floppy.c
  IDE: Coding Style fixes to drivers/ide/legacy/ali14xx.c
  IDE: Coding Style fixes to drivers/ide/legacy/hd.c
  IDE: Coding Style fixes to drivers/ide/pci/cmd640.c
  IDE: Coding Style fixes to drivers/ide/pci/opti621.c
  IDE: Coding Style fixes to drivers/ide/ide-pnp.c
  IDE: Coding Style fixes to drivers/ide/ide-proc.c
  IDE: Coding Style fixes to drivers/ide/legacy/ide-4drives.c
  IDE: Coding Style fixes to drivers/ide/legacy/umc8672.c
  IDE: Coding Style fixes to drivers/ide/pci/generic.c
  ...
2008-04-26 09:48:00 -07:00
Linus Torvalds
b82287587e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-misc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-misc: (28 commits)
  x86: section mismatch fixes, #3
  x86: section mismatch fixes, #2
  x86: pgtable_32.h - prototype and section mismatch fixes
  x86: unlock_ExtINT_logic() - fix section mismatch warnings
  x86: uniq_ioapic_id - fix section mismatch warning
  x86: trampoline_32.S - switch to .cpuinit.data
  x86: use get_bios_ebda()
  x86: remove duplicate get_bios_ebda() from rio.h
  x86: get_bios_ebda() requires asm/io.h
  x86: use cpumask function for present, possible, and online cpus
  x86: cleanup div_sc() usage
  x86: cleanup clocksource_hz2mult usage
  x86: remove unnecessary memset and NULL check after alloc_bootmem()
  x86: use bitmap library for pin_programmed
  x86: use MP_intsrc_info()
  x86: use BUILD_BUG_ON() for the size of struct intel_mp_floating
  x86_64 ia32 ptrace: convert to compat_arch_ptrace
  x86_64 ia32 ptrace: use compat_ptrace_request for siginfo
  x86 signals: lift set_fs
  x86 signals: lift flags diddling code
  ...
2008-04-26 09:44:32 -07:00
Ingo Molnar
2a8a2719be x86 PAT: decouple from nonpromisc devmem
Linus pointed it out that PAT should not depend on NONPROMISC_DEVMEM.

Also make PAT non-default.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-26 09:31:17 -07:00
Linus Torvalds
d9c04d6784 Merge branch 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6
* 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6:
  agp: convert drivers/char/agp/frontend.c to use unlocked_ioctl
  agp: fix shadowed variable warning in amd-k7-agp.c
2008-04-26 09:29:36 -07:00
Linus Torvalds
4d9c55e443 Merge branch 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm: _end is shadowing real _end, just rename it.
  drm/vbl rework: rework how the drm deals with vblank.
  drm: reorganise minor number handling using backported modesetting code.
  drm/i915: Handle tiled buffers in vblank tasklet
  drm/i965: On I965, use correct 3DSTATE_DRAWING_RECTANGLE command in vblank
  drm: Remove unneeded dma sync in ATI pcigart alloc
  drm: Fix mismerge of non-coherent DMA patch
2008-04-26 09:26:39 -07:00
Al Viro
50704516f3 Fix uninitialized 'copy' in unshare_files
Arrgghhh...

Sorry about that, I'd been sure I'd folded that one, but it actually got
lost.  Please apply - that breaks execve().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-26 09:24:31 -07:00
Ingo Molnar
765c68bd54 generic: make optimized inlining arch-opt-in
Stephen Rothwell reported that linux-next did not build on powerpc64.

make optimized inlining dependent on architecture opt-in.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 17:44:55 +02:00
Ingo Molnar
60a3cdd063 x86: add optimized inlining
add CONFIG_OPTIMIZE_INLINING=y.

allow gcc to optimize the kernel image's size by uninlining
functions that have been marked 'inline'. Previously gcc was
forced by Linux to always-inline these functions via a gcc
attribute:

 #define inline	inline __attribute__((always_inline))

Especially when the user has already selected
CONFIG_OPTIMIZE_FOR_SIZE=y this can make a huge difference in
kernel image size (using a standard Fedora .config):

   text    data     bss     dec           hex filename
   5613924  562708 3854336 10030968    990f78 vmlinux.before
   5486689  562708 3854336  9903733    971e75 vmlinux.after

that's a 2.3% text size reduction (!).

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-26 17:44:55 +02:00
Bartlomiej Zolnierkiewicz
784506cbdd ide: sanitize handling of IDE_HFLAG_NO_SET_MODE host flag
* Check for IDE_HFLAG_NO_SET_MODE host flag in ide_set_pio(),
  ide_set_[pio,dma]_mode(), ide_set_xfer_rate() and set_pio_mode().

* Remove no longer needed IDE_HFLAG_NO_SET_MODE host flag checking
  from ide_tune_dma().

* Remove superfluous ->set_pio_mode checking from do_special().

This is a part of preparations for adding 'struct ide_port_ops'.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 17:36:43 +02:00
Bartlomiej Zolnierkiewicz
4764b68405 sis5513: fail early for unsupported chipsets
* Factor out chipset family detection from init_chipset_sis5513()
  to sis_find_family().

* Use sis_find_family() in sis5513_init_one() to fail early if the
  chipset is unsupported.

* Keep a local copy sis5513_chipset in sis5513_init_one()
  and set .udma_mask according to chipset family.

* Remove no longer need ->ultra_mask setting from init_hwif_sis5513().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 17:36:43 +02:00
Bartlomiej Zolnierkiewicz
eb7a07e8d6 it821x: fix kzalloc() failure handling
Allocate 'struct it821x_dev' objects for both ports in it821x_init_one().

Fixes potential OOPS in it821x_quirkproc() (uses 'itdev' unconditionally)
and other problems ('itdev' is needed for correct operation of the driver).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 17:36:42 +02:00
Bartlomiej Zolnierkiewicz
79472b6ea9 qd65xx: use IDE_HFLAG_SINGLE host flag
* Set IDE_HFLAG_SINGLE host flag in qd_probe() for QD6500 and QD6580
  with the second port disabled.

* Check for IDE_HFLAG_SINGLE in qd6580_port_init_devs() instead of
  using cached value of QD6580 Control register.

* Don't cache QD6580 Control register value in hwif->config_data
  (bits 8-15) and remove no longer needed QD_CONTROL() macro.

* Cache QD65xx base address in hwif->config_data (bits 8-15)
  instead of hwif->select_data.

* Set hwif->config_data in qd_probe() and remove qd_setup() helper.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26 17:36:42 +02:00