Commit Graph

97036 Commits

Author SHA1 Message Date
Linus Torvalds
babd90b274 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  [ALSA] hda - Fix ASUS P5GD1 model
  [ALSA] hda - Fix ALC262 fujitsu model
  snd-pcsp: use HRTIMER_CB_SOFTIRQ
2008-05-20 08:49:08 -07:00
Linus Torvalds
424de91dd6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: remove CVS keywords
  HID: Add iMON LCDs to blacklist
  HID: add Microchip PICKit 1 and PICkit 2 to blacklist
  HID: split Numlock emulation quirk from HID_QUIRK_APPLE_HAS_FN.
2008-05-20 08:16:25 -07:00
Linus Torvalds
bca39da564 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Update defconfigs for desktop/server systems
  [POWERPC] Fix mpc8377_mds.dts DMA nodes to match spec
  [POWERPC] Update arch/powerpc/boot/.gitignore
  [POWERPC] Remove generated files on make clean
  [POWERPC] powerpc/mm/hash_low_32.S: Remove CVS keyword
  [POWERPC] Update Cell MAINTAINERS entry, add spufs entry
  lmb: Fix compile warning
2008-05-20 08:15:34 -07:00
Linus Torvalds
551395ae66 Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  [GFS2] Prefer strlcpy() over snprintf()
  [GFS2] Fix cast from unsigned int to s64
  [GFS2] filesystem consistency error from do_strip
2008-05-20 08:15:18 -07:00
Hugh Dickins
a8375bd81c x86: strengthen 64-bit p?d_bad()
The x86_64 pgd_bad(), pud_bad(), pmd_bad() inlines have differed from
their x86_32 counterparts in a couple of ways: they've been unnecessarily
weak (e.g. letting 0 or 1 count as good), and were typed as unsigned long.
Strengthen them and return int.

The PAE pmd_bad was too weak before, allowing any junk in the upper half;
but got strengthened by the patch correcting its ~PAGE_MASK to ~PTE_MASK.
The PAE pud_bad already said ~PTE_MASK; and since it folds into pgd_bad,
and we don't set the protection bits at that level, it'll do as is.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-20 08:14:45 -07:00
Jeremy Fitzhardinge
cbb3077cbe xen: use PTE_MASK in pte_mfn()
Use PTE_MASK to extract mfn from pte.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tested-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-20 07:51:21 -07:00
Jeremy Fitzhardinge
ba23cef5c2 x86: use PTE_MASK rather than ad-hoc mask
Use ~PTE_MASK to extract the non-pfn parts of the pte (ie, the pte
flags), rather than constructing an ad-hoc mask.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tested-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-20 07:51:21 -07:00
Jeremy Fitzhardinge
86aaf4fd4e x86: clarify use of _PAGE_CHG_MASK
_PAGE_CHG_MASK is defined as the set of bits not updated by
pte_modify(); specifically, the pfn itself, and the Accessed and Dirty
bits (which are updated by hardware).

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tested-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-20 07:51:21 -07:00
Jeremy Fitzhardinge
7f84133af6 x86: use PTE_MASK in pgtable_32.h
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-20 07:51:21 -07:00
Jeremy Fitzhardinge
a4d6886270 x86: use PTE_MASK in 32-bit PAE
Use PTE_MASK in 3-level pagetables (ie, 32-bit PAE).

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tested-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-20 07:51:21 -07:00
Jeremy Fitzhardinge
c57c05d003 x86: rearrange __(VIRTUAL|PHYSICAL)_MASK
Put the definitions of __(VIRTUAL|PHYSICAL)_MASK before their uses.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tested-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-20 07:51:20 -07:00
Jeremy Fitzhardinge
1bb271db63 x86: fix warning on 32-bit non-PAE
Fix the warning:

include2/asm/pgtable.h: In function `pte_modify':
include2/asm/pgtable.h:290: warning: left shift count >= width of type

On 32-bit PAE the virtual and physical addresses are both 32-bits,
so it ends up evaluating 1<<32.  Do the shift as a 64-bit shift then
cast to the appropriate size.  This should all be done at compile time,
and so have no effect on generated code.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tested-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-20 07:51:20 -07:00
Jeremy Fitzhardinge
2bd3a99c9d x86: define PTE_MASK in a universally useful way
Define PTE_MASK so that it contains a meaningful value for all x86
pagetable configurations.  Previously it was defined as a "long" which
means that it was too short to cover a 32-bit PAE pte entry.

It is now defined as a pteval_t, which is an integer type long enough
to contain a full pte (or pmd, pud, pgd).

This fixes an Xorg crash on 32-bit x86 with PAE due to corruption of the
NX bit in mprotect due to the incorrect type/value of PTE_MASK reported
by Hugh Dickins:

  "Yes, thanks Jeremy: I've checked that each stage builds and runs X on
   my boxes here, x86_32 and x86_32+PAE and x86_64.  (So even 1/8 is
   enough to fix the PAT pte_modify issue, though 2/8 then fixes
   compiler warnings.)"

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tested-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-20 07:51:20 -07:00
Adrian Bunk
f8dea7a3d4 HID: remove CVS keywords
This patch removes CVS keywords that weren't updated for a long time
from comments.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-05-20 16:44:43 +02:00
Dylan R Semler
0952c9e8ed HID: Add iMON LCDs to blacklist
The new iMON LCDs from SoundGraph need to be blacklisted from HID in order to
be used by lirc.

Signed-off-by: Dylan R Semler <dylan.semler@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-05-20 16:44:43 +02:00
Xiaofan Chen
f4971031f4 HID: add Microchip PICKit 1 and PICkit 2 to blacklist
Microchip PICkit 1 and PICKit 2 USB Programmers are USB HID class of device but
they are not real HID device. They are now supported by libusb based programs
like the following programs.

pk2 and pk2cmd Linux port:
	http://home.pacbell.net/theposts/picmicro/
usb_pickit:
	http://tfc.duke.free.fr/pickit.html
usb_pickit original version:
	http://charm.cs.uiuc.edu/users/olawlor/projects/2003/microchip/

Therefore it ispreferred to blacklist them.

Signed-off-by: Xiaofan Chen <xiaofanc@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-05-20 16:44:43 +02:00
Diego 'Flameeyes' Petteno
6e7045990f HID: split Numlock emulation quirk from HID_QUIRK_APPLE_HAS_FN.
Since 2.6.25 the HID_QUIRK_APPLE_HAS_FN quirk is enabled even for
non-laptop Apple keyboards of the Aluminium series. The USB version of
these don't need Numlock emulation, like the laptop (and Aluminium
Wireless) do, as they have a proper keypad.

This patch splits the Numlock emulation for Apple keyboards in a
different quirk flag, so that it can be enabled for all the keyboards
but the Aluminium USB ones.

If the Numlock emulation is enabled for Aluminium USB keyboards, the
JKL and UIO keys become the numeric pad, and the rest of the keyboard
is disabled, included the key used to disable Numlock.

Additionally, these keyboard should not have a Numlock at all, as the
Numlock key is instead replaced by the 'Clear' key as usual for Apple
USB keyboards.

Signed-off-by: Diego 'Flameeyes' Petteno <flameeyes@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-05-20 16:44:43 +02:00
Paul Mackerras
09c201219b [POWERPC] Update defconfigs for desktop/server systems
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-20 20:04:12 +10:00
Travis Place
186c3117f8 [ALSA] hda - Fix ASUS P5GD1 model
Corrected the model assignment for the ASUS P5GD1 w/SPDIF after reports of
surround sound not being possible.

Signed-off-by: Travis Place <wishie@wishie.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-05-20 11:56:40 +02:00
Takashi Iwai
ebc7a40663 [ALSA] hda - Fix ALC262 fujitsu model
Fixed the speaker auto-mute with two laptop and docking headphones.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Tony Vroon <tony@linx.net>
2008-05-20 11:56:33 +02:00
Stas Sergeev
4b7afb0d0d snd-pcsp: use HRTIMER_CB_SOFTIRQ
Change HRTIMER_CB_IRQSAFE to HRTIMER_CB_SOFTIRQ,
as suggested by Thomas Gleixner.
That solves the lock dependancy reported in
Bug #10701.
That also allows to call hrtimer_start()
directly, tasklet "stupid hack" removed.

Signed-off-by: Stas Sergeev <stsp@aknet.ru>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-05-20 11:56:24 +02:00
Paul Mackerras
927c258ac6 Merge branch 'for-2.6.26' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into merge 2008-05-20 19:46:37 +10:00
Kumar Gala
8939700edc [POWERPC] Fix mpc8377_mds.dts DMA nodes to match spec
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-20 00:37:13 -05:00
Kumar Gala
4978757987 [POWERPC] Update arch/powerpc/boot/.gitignore
* Add dtbImage.*
* Added zImage.holly
* Folded zImage.coff.lds into zImage.*lds
* Removed some unused zImage.<foo> ignores

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-20 00:35:29 -05:00
Kumar Gala
b58a457528 [POWERPC] Remove generated files on make clean
dtbImage.* and several zImage. targets get created but never cleaned up.

Also, moved zImage to the clean-files line associated with all other image
results (was previously duplicated).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-05-20 00:27:19 -05:00
Linus Torvalds
8033c6e973 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  at91_mci: minor cleanup
  mmc: mmc host test driver
  mmc: Fix omap compile by replacing dev_name with dma_dev_name
2008-05-19 16:40:30 -07:00
Brice Goglin
2d3cf588e9 Add maintainers for myri10ge driver
Add a MAINTAINERS entry for the myri10ge driver.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-19 16:38:32 -07:00
Linus Torvalds
16ae527bfa Merge branch 'audit.b51' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current
* 'audit.b51' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
  [PATCH] list_for_each_rcu must die: audit
  [patch 1/1] audit_send_reply(): fix error-path memory leak
  [PATCH] open sessionid permissions
2008-05-19 16:38:10 -07:00
Linus Torvalds
e23a5f6687 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  [PATCH] return to old errno choice in mkdir() et.al.
  [Patch] fs/binfmt_elf.c: fix wrong return values
  [PATCH] get rid of leak in compat_execve()
  [Patch] fs/binfmt_elf.c: fix a wrong free
  [PATCH] avoid multiplication overflows and signedness issues for max_fds
  [PATCH] dup_fd() part 4 - race fix
  [PATCH] dup_fd() - part 3
  [PATCH] dup_fd() part 2
  [PATCH] dup_fd() fixes, part 1
  [PATCH] take init_files to fs/file.c
2008-05-19 16:37:45 -07:00
Linus Torvalds
c9091f9e57 Merge branch 'for-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx
* 'for-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx:
  [POWERPC] 4xx: Workaround for CHIP_11 Errata
2008-05-19 16:36:28 -07:00
Alan Cox
cc2020e62d MAINTAINERS needs further order fixing
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-19 16:35:57 -07:00
Adrian Bunk
d3d3d3cdb1 [POWERPC] powerpc/mm/hash_low_32.S: Remove CVS keyword
This removes a CVS keyword that wasn't updated for a long time from a
comment.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-20 09:34:18 +10:00
Linus Torvalds
754cdd4aba Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
  Blackfin SPORTS UART Driver: converting BFIN->BLACKFIN
  Blackfin serial driver: add extra IRQ flag for 8250 serial driver
  8250 Serial Driver: Added support for 8250-class UARTs in HV Sistemas H8606 board
  Blackfin arch: Fix bug - USB fails to build for BF524/BF526
  Blackfin arch: update boards defconfig files
  Blackfin arch: IO Port functions to read/write unalligned memory
  Blackfin arch: enable a choice to provide 4M DMA memory
  Blackfin arch: cleanup the icplb/dcplb multiple hit checks
  Blackfin arch: Add workaround to read edge triggered GPIOs
  Blackfin arch: Sync channel defines with struct dma_register dma_io_base_addr.
  Blackfin arch: Check for Anomaly 05000182
  [Blackfin] arch: rename bf5xx-flash to bfin-async-flash
  [Blackfin] arch: Blackfin checksum annotations
2008-05-19 16:33:29 -07:00
Linus Torvalds
db07b02304 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix up restorer in debug_trap exception return path.
  sh: Make is_valid_bugaddr() more intelligent on nommu.
  sh: use the common ascii hex helpers
  sh: fix sh7785 master clock value
  sh: Fix up thread info pointer in syscall_badsys resume path.
  sh: Fix up optimized SH-4 memcpy on big endian.
  sh: disable initrd defaults in .empty_zero_page.
  sh: display boot params by default on entry.
2008-05-19 16:33:08 -07:00
Linus Torvalds
88e6c9499f Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (28 commits)
  drivers/ata: trim trailing whitespace
  Fixups to ATA ACPI hotplug
  libata: ignore SIMG4726 config pseudo device
  sata_sil24: don't use NCQ if marvell 4140 PMP is attached
  libata: don't schedule LPM action seperately during probing
  libata: make sure PMP notification is turned off during recovery
  libata: increase PMP register access timeout to 3s
  libata: ignore recovered PHY errors
  libata: kill hotplug related race condition
  libata: move reset freeze/thaw handling into ata_eh_reset()
  libata: reorganize ata_eh_reset() no reset method path
  libata: fix sata_link_hardreset() @online out parameter handling
  sata_promise: other cleanups
  sata_promise: mmio access cleanups
  sata_promise: fix irq clearing buglets
  ata: remove FIT() macro
  sata_mv: ensure empty request queue for FBS-NCQ EH
  sata_mv: cache main_irq_mask register in hpriv
  sata_mv: disregard masked irqs
  sata_mv: fix pmp drives not found
  ...
2008-05-19 16:29:29 -07:00
Arnd Bergmann
b815454221 [POWERPC] Update Cell MAINTAINERS entry, add spufs entry
The MAINTAINERS file entry for the cell platform is outdated,
even the name of the platform changed since the early days
when it was initially submitted.
The SPU file system is now maintained by Jeremy Kerr.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-20 09:19:26 +10:00
Jeff Garzik
c85665ffa8 drivers/ata: trim trailing whitespace
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:56:10 -04:00
Matthew Garrett
ae6c23c4e1 Fixups to ATA ACPI hotplug
The libata-acpi.c code currently accepts hotplug messages from both the
port and the device. This does not match the behaviour of the bay
driver, and may result in confusion when two hotplug requests are
received for the same device. This patch limits the hotplug notification
to removable ACPI devices, which in turn allows it to use the _STA
method to determine whether the device has been removed or inserted.
On removal, devices are marked as detached. On insertion, a hotplug scan
is started. This should avoid lockups caused by the ata layer attempting
to scan devices which have been removed. The uevent sending is moved
outside the spinlock in order to avoid a warning generated by it firing
when interrupts are disabled.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:55:18 -04:00
Tejun Heo
50af2fa1e1 libata: ignore SIMG4726 config pseudo device
I was hoping ATA_HORKAGE_NODMA | ATA_HORKAGE_SKIP_PM could keep it
happy but no even this doesn't work under certain configurations and
it's not like we can do anything useful with the cofig device anyway.
Replace ATA_HORKAGE_SKIP_PM with ATA_HORKAGE_DISABLE and use it for
the config device.  This makes the device completely ignored by
libata.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:48 -04:00
Tejun Heo
906c1ff44a sata_sil24: don't use NCQ if marvell 4140 PMP is attached
When 4140 PMP is attached to sil24, NCQ commands to fan out port 1 and
2 (0 based) often stall if commands are in progress to other ports.
I've tried a number of things but can't tell what's going on.  It
never happens w/ ahci and reportedly sata_mv which can issue NCQ
commands to multiple devices simultaneously like sil24 does.

Disable NCQ for devices behind 4140 PMP for the time being.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Mark Lord <liml@rtr.ca>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:48 -04:00
Tejun Heo
391191c116 libata: don't schedule LPM action seperately during probing
There's no reason to schedule LPM action after probing is complete
causing another EH iteration.  Just schedule it together with probing
itself.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:48 -04:00
Tejun Heo
f1bbfb90e8 libata: make sure PMP notification is turned off during recovery
PMP notification during reset can make some controllers fail reset
processing and needs to be turned off during resets.  PMP attach and
full-revalidation path did this via sata_pmp_configure() but the quick
revalidation wasn't.  Move the notification disable code right above
fan-out port recovery so that it's always turned off.

This fixes obscure reset failures.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:48 -04:00
Tejun Heo
bf1bff6fa9 libata: increase PMP register access timeout to 3s
This timeout was set low because previously PMP register access was
done via polling and register access timeouts could stack up.  This is
no longer the case.  One timeout will make all following accesses fail
immediately.

In rare cases both marvell and SIMG PMPs need almost a second.  Bump
it to 3s.

While at it, rename it to SATA_PMP_RW_TIMEOUT.  It's not specific to
SCR access.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:47 -04:00
Tejun Heo
e0614db2a3 libata: ignore recovered PHY errors
No reason to get overzealous about recovered comm and data errors.
Some PHYs habitually sets them w/o no good reason and being draconian
about these soft error conditions doesn't seem to help anybody.

If need ever rises, we might need to add soft PHY error condition, say
AC_ERR_MAYBE_ATA_BUS and use it only to determine whether speed down
is necessary but I don't think that's very likely to happen.  It's far
more likely we'll get timeouts or fatal transmission errors if
recovered errors are so prominent that they hamper operation.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:47 -04:00
Tejun Heo
f046519fc8 libata: kill hotplug related race condition
Originally, whole reset processing was done while the port is frozen
and SError was cleared during @postreset().  This had two race
conditions.  1: hotplug could occur after reset but before SError is
cleared and libata won't know about it.  2: hotplug could occur after
all the reset is complete but before the port is thawed.  As all
events are cleared on thaw, the hotplug event would be lost.

Commit ac371987a8 kills the first race
by clearing SError during link resume but before link onlineness test.
However, this doesn't fix race #2 and in some cases clearing SError
after SRST is a good idea.

This patch solves this problem by cross checking link onlineness with
classification result after SError is cleared and port is thawed.
Reset is retried if link is online but all devices attached to the
link are unknown.  As all devices will be revalidated, this one-way
check is enough to ensure that all devices are detected and
revalidated reliably.

This, luckily, also fixes the cases where host controller returns
bogus status while harddrive is spinning up after hotplug making
classification run before the device sends the first FIS and thus
causes misdetection.

Low level drivers can bypass the logic by setting class explicitly to
ATA_DEV_NONE if ever necessary (currently none requires this).

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:47 -04:00
Tejun Heo
dc98c32cbe libata: move reset freeze/thaw handling into ata_eh_reset()
Previously reset freeze/thaw handling lived outside of ata_eh_reset()
mainly because the original PMP reset code needed the port frozen
while resetting all the fan-out ports, which is no longer the case.

This patch moves freeze/thaw handling into ata_eh_reset().
@prereset() and @postreset() are now called w/o freezing the port
although @prereset() an be called frozen if the port is frozen prior
to entering ata_eh_reset().

This makes code simpler and will help removing hotplug event related
races.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:47 -04:00
Tejun Heo
932648b007 libata: reorganize ata_eh_reset() no reset method path
Reorganize ata_eh_reset() such that @prereset() is called even when no
reset method is available and if block is used instead of goto to skip
actual reset.  This makes no reset case behave better (readiness wait)
and future changes easier.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:47 -04:00
Tejun Heo
0cbf0711a1 libata: fix sata_link_hardreset() @online out parameter handling
The @online out parameter is supposed to set to true iff link is
online and reset succeeded as advertised in the function description
and callers are coded expecting that.  However, sata_link_reset()
didn't behave this way on device readiness test failure.  Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:51:47 -04:00
Mikael Pettersson
7715a6f9cd sata_promise: other cleanups
Minor coding-style fixes for sata_promise:
- remove stray blank lines
- fix checkpatch.pl errors; warnings about long lines
  remain, but I don't intend to address those at this time
- remove two inline directives: neither is essential and
  both functions are trivially inlinable anyway by virtue
  of being static and having a single unique call site
- fix comment in pdc_interrupt(): the bits in PDC_INT_SEQMASK
  denote SEQIDs not tags, the distinction becomes important
  when NCQ gets implemented

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:31:34 -04:00
Mikael Pettersson
821d22cdcd sata_promise: mmio access cleanups
This patch cleans up sata_promise's mmio accesses.

In sata_promise there are three distinct mmio address spaces:
1. global registers, offsets from host->iomap[PDC_MMIO_BAR]
2. per-port ATA registers, offsets from ap->ioaddr.cmd_addr
3. per-port SATA registers, offsets from ap->ioaddr.scr_addr

The driver currently often fails to indicate which address space
a given mmio base pointer refers to, which is a source of bugs
and confusion (see recent pdc_thaw() irq clearing bug; it's also
been an obstacle for the pending NCQ extensions).

To reduce these problems, adopt a coding style where the name of
a base pointer always indicates which address space it refers to:
1. global registers: host_mmio
2. per-port ATA registers: ata_mmio
3. per-port SATA registers: sata_mmio

Also rearrange register offset definitions to clearly indicate
which address space they belong to, and add a symbolic definition
for the previously hard-coded PHYMODE4 register.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19 17:31:26 -04:00