1. 02 2月, 2008 9 次提交
  2. 25 1月, 2008 4 次提交
  3. 12 1月, 2008 1 次提交
  4. 19 10月, 2007 5 次提交
  5. 30 7月, 2007 2 次提交
    • R
      Introduce CONFIG_SUSPEND for suspend-to-Ram and standby · 296699de
      Rafael J. Wysocki 提交于
      Introduce CONFIG_SUSPEND representing the ability to enter system sleep
      states, such as the ACPI S3 state, and allow the user to choose SUSPEND
      and HIBERNATION independently of each other.
      
      Make HOTPLUG_CPU be selected automatically if SUSPEND or HIBERNATION has
      been chosen and the kernel is intended for SMP systems.
      
      Also, introduce CONFIG_PM_SLEEP which is automatically selected if
      CONFIG_SUSPEND or CONFIG_HIBERNATION is set and use it to select the
      code needed for both suspend and hibernation.
      
      The top-level power management headers and the ACPI code related to
      suspend and hibernation are modified to use the new definitions (the
      changes in drivers/acpi/sleep/main.c are, mostly, moving code to reduce
      the number of ifdefs).
      
      There are many other files in which CONFIG_PM can be replaced with
      CONFIG_PM_SLEEP or even with CONFIG_SUSPEND, but they can be updated in
      the future.
      Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      296699de
    • R
      Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION · b0cb1a19
      Rafael J. Wysocki 提交于
      Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION to avoid
      confusion (among other things, with CONFIG_SUSPEND introduced in the
      next patch).
      Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      b0cb1a19
  6. 20 7月, 2007 4 次提交
  7. 02 7月, 2007 1 次提交
    • R
      PM: introduce set_target method in pm_ops · 2391dae3
      Rafael J. Wysocki 提交于
      Commit 52ade9b3 changed the suspend code
      ordering to execute pm_ops->prepare() after the device model per-device
      .suspend() calls in order to fix some ACPI-related issues.  Unfortunately, it
      broke the at91 platform which assumed that pm_ops->prepare() would be called
      before suspending devices.
      
      at91 used pm_ops->prepare() to get notified of the target system sleep state,
      so that it could use this information while suspending devices.  However, with
      the current suspend code ordering pm_ops->prepare() is called too late for
      this purpose.  Thus, at91 needs an additional method in 'struct pm_ops' that
      will be used for notifying the platform of the target system sleep state.
      Moreover, in the future such a method will also be needed by ACPI.
      
      This patch adds the .set_target() method to 'struct pm_ops' and makes the
      suspend code call it, if implemented, before executing the device model
      per-device .suspend() calls.  It also modifies the at91 code to use
      pm_ops->set_target() instead of pm_ops->prepare().
      Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
      Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Johannes Berg <johannes@sipsolutions.net>
      Cc: Len Brown <lenb@kernel.org>
      Cc: Greg KH <greg@kroah.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      2391dae3
  8. 17 5月, 2007 2 次提交
  9. 10 5月, 2007 1 次提交
    • R
      PM: Separate hibernation code from suspend code · a3d25c27
      Rafael J. Wysocki 提交于
      [ With Johannes Berg <johannes@sipsolutions.net> ]
      
      Separate the hibernation (aka suspend to disk code) from the other suspend
      code.  In particular:
      
       * Remove the definitions related to hibernation from include/linux/pm.h
       * Introduce struct hibernation_ops and a new hibernate() function to hibernate
         the system, defined in include/linux/suspend.h
       * Separate suspend code in kernel/power/main.c from hibernation-related code
         in kernel/power/disk.c and kernel/power/user.c (with the help of
         hibernation_ops)
       * Switch ACPI (the only user of pm_ops.pm_disk_mode) to hibernation_ops
      Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
      Cc: Greg KH <greg@kroah.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Nigel Cunningham <nigel@nigel.suspend2.net>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      a3d25c27
  10. 08 5月, 2007 2 次提交
  11. 03 5月, 2007 1 次提交
  12. 01 5月, 2007 3 次提交
    • J
      power management: force pm_ops.valid callback to be assigned · 9684e51c
      Johannes Berg 提交于
      This patch changes the docs and behaviour from "all states valid" to "no
      states valid" if no .valid callback is assigned.  Users of pm_ops that only
      need mem sleep can assign pm_valid_only_mem without any overhead, others
      will require more elaborate callbacks.
      
      Now that all users of pm_ops have a .valid callback this is a safe thing to
      do and prevents things from getting messy again as they were before.
      Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
      Acked-by: NPavel Machek <pavel@ucw.cz>
      Looks-okay-to: Rafael J. Wysocki <rjw@sisk.pl>
      Cc: <linux-pm@lists.linux-foundation.org>
      Cc: Greg KH <greg@kroah.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      9684e51c
    • J
      power management: implement pm_ops.valid for everybody · e8c9c502
      Johannes Berg 提交于
      Almost all users of pm_ops only support mem sleep, don't check in .valid and
      don't reject any others in .prepare so users can be confused if they check
      /sys/power/state, especially when new states are added (these would then
      result in s-t-r although they're supposed to be something different).
      
      This patch implements a generic pm_valid_only_mem function that is then
      exported for users and puts it to use in almost all existing pm_ops.
      Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
      Cc: David Brownell <david-b@pacbell.net>
      Acked-by: NPavel Machek <pavel@ucw.cz>
      Cc: linux-pm@lists.linux-foundation.org
      Cc: Len Brown <lenb@kernel.org>
      Acked-by: NRussell King <rmk@arm.linux.org.uk>
      Cc: Greg KH <greg@kroah.com>
      Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
      Cc: Paul Mundt <lethal@linux-sh.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      e8c9c502
    • J
      rework pm_ops pm_disk_mode, kill misuse · fe0c935a
      Johannes Berg 提交于
      This patch series cleans up some misconceptions about pm_ops.  Some users of
      the pm_ops structure attempt to use it to stop the user from entering suspend
      to disk, this, however, is not possible since the user can always use
      "shutdown" in /sys/power/disk and then the pm_ops are never invoked.  Also,
      platforms that don't support suspend to disk simply should not allow
      configuring SOFTWARE_SUSPEND (read the help text on it, it only selects
      suspend to disk and nothing else, all the other stuff depends on PM).
      
      The pm_ops structure is actually intended to provide a way to enter
      platform-defined sleep states (currently supported states are "standby" and
      "mem" (suspend to ram)) and additionally (if SOFTWARE_SUSPEND is configured)
      allows a platform to support a platform specific way to enter low-power mode
      once everything has been saved to disk.  This is currently only used by ACPI
      (S4).
      
      This patch:
      
      The pm_ops.pm_disk_mode is used in totally bogus ways since nobody really
      seems to understand what it actually does.
      
      This patch clarifies the pm_disk_mode description.
      
      It also removes all the arm and sh users that think they can veto suspend to
      disk via pm_ops; not so since the user can always do echo shutdown >
      /sys/power/disk, they need to find a better way involving Kconfig or such.
      
      ACPI is the only user left with a non-zero pm_disk_mode.
      
      The patch also sets the default mode to shutdown again, but when a new pm_ops
      is registered its pm_disk_mode is selected as default, that way the default
      stays for ACPI where it is apparently required.
      Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
      Cc: David Brownell <david-b@pacbell.net>
      Acked-by: NPavel Machek <pavel@ucw.cz>
      Cc: <linux-pm@lists.linux-foundation.org>
      Cc: Len Brown <lenb@kernel.org>
      Acked-by: NRussell King <rmk@arm.linux.org.uk>
      Cc: Greg KH <greg@kroah.com>
      Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
      Acked-by: NPaul Mundt <lethal@linux-sh.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      fe0c935a
  13. 28 4月, 2007 1 次提交
  14. 24 2月, 2007 1 次提交
  15. 12 2月, 2007 2 次提交
  16. 08 12月, 2006 1 次提交