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  1. 28 6月, 2008 1 次提交
    • K
      pciehp: fix interrupt initialization · c4635eb0
      由 Kenji Kaneshige 提交于 
      Current pciehp driver's intialization sequence is as follows:

(1) initialize controller data structure
(2) install interrupt handler
(3) enable software notification
(4) initialize controller specific slot data structure
(5) initialize generic slot data structure and register it to pci hotplug core

The interrupt handler of pciehp assumes that controller specific slot
data structure is already initialized. However, it is installed at (2)
before initializing controller specific slot data structure at
(4). Because of this, pciehp driver cannot handle the following cases
properly.

- If devices that shares IRQ with pciehp raise interrupts between (2) and (4).
- If hotplug events (e.g. MRL open) happen between (3) and (4).

We already have a workaround for this problem ("pciehp: fix NULL
dereference in interrupt handler: dbd79aed).
But we still need fundamental fix.

This patch fix the problem by changing the initilization sequence as follows:

(1) initialize controller data structure
(2) initialize controller specific slot data structure
(3) install interrupt handler
(4) enable software notification
(5) initialize generic slot data structure and register it to pci hotplug core
Signed-off-by: NKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Acked-by: NAlex Chiang <achiang@hp.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
      c4635eb0
  3. 26 6月, 2008 10 次提交
  5. 17 6月, 2008 1 次提交
  7. 13 6月, 2008 2 次提交
    • R
      Suspend-related patches for 2.6.27 · d8f3de0d
      由 Rafael J. Wysocki 提交于 
      ACPI PM: Add possibility to change suspend sequence

There are some systems out there that don't work correctly with
our current suspend/hibernation code ordering.  Provide a workaround
for these systems allowing them to pass 'acpi_sleep=old_ordering' in
the kernel command line so that it will use the pre-ACPI 2.0 ("old")
suspend code ordering.

Unfortunately, this requires us to add a platform hook to the
resuming of devices for recovering the platform in case one of the
device drivers' .suspend() routines returns error code.  Namely,
ACPI 1.0 specifies that _PTS should be called before suspending
devices, but _WAK still should be called before resuming them in
order to undo the changes made by _PTS.  However, if there is an
error during suspending devices, they are automatically resumed
without returning control to the PM core, so the _WAK has to be
called from within device_resume() in that cases.

The patch also reorders and refactors the ACPI suspend/hibernation
code to avoid duplication as far as reasonably possible.
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Acked-by: NPavel Machek <pavel@suse.cz>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
      d8f3de0d
    • J
      Merge branch 'suspend' of... · 53eb2fbe
      由 Jesse Barnes 提交于 
      Merge branch 'suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 into linux-next
      53eb2fbe
  9. 12 6月, 2008 3 次提交
  11. 11 6月, 2008 23 次提交