1. 30 3月, 2009 1 次提交
  2. 18 3月, 2009 1 次提交
    • M
      sh: add kexec jump support · b7cf6ddc
      Magnus Damm 提交于
      Add kexec jump support to the SuperH architecture.
      
      Similar to the x86 implementation, with the following
      exceptions:
      
      - Instead of separating the assembly code flow into
      two parts for regular kexec and kexec jump we use a
      single code path. In the assembly snippet regular
      kexec is just kexec jump that never comes back.
      
      - Instead of using a swap page when moving data between
      pages the page copy assembly routine has been modified
      to exchange the data between the pages using registers.
      
      - We walk the page list twice in machine_kexec() to
      do and undo physical to virtual address conversion.
      Signed-off-by: NMagnus Damm <damm@igel.co.jp>
      Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      b7cf6ddc
  3. 17 3月, 2009 1 次提交
    • P
      sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores. · 8263a67e
      Paul Mundt 提交于
      This adds support for extended ASIDs (up to 16-bits) on newer SH-X3 cores
      that implement the PTAEX register and respective functionality. Presently
      only the 65nm SH7786 (90nm only supports legacy 8-bit ASIDs).
      
      The main change is in how the PTE is written out when loading the entry
      in to the TLB, as well as in how the TLB entry is selectively flushed.
      
      While SH-X2 extended mode splits out the memory-mapped U and I-TLB data
      arrays for extra bits, extended ASID mode splits out the address arrays.
      While we don't use the memory-mapped data array access, the address
      array accesses are necessary for selective TLB flushes, so these are
      implemented newly and replace the generic SH-4 implementation.
      
      With this, TLB flushes in switch_mm() are almost non-existent on newer
      parts.
      Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      8263a67e
  4. 16 3月, 2009 1 次提交
    • M
      sh: SuperH Mobile suspend support · 77594912
      Magnus Damm 提交于
      This patch contains CONFIG_SUSPEND support to the SuperH
      architecture. If enabled, SuperH Mobile processors will
      register their suspend callbacks during boot.
      
      To suspend, use "echo mem > /sys/power/state". To allow
      wakeup, make sure "/sys/device/platform/../power/wakeup"
      contains "enabled". Additional per-device driver patches
      are most likely needed.
      Signed-off-by: NMagnus Damm <damm@igel.co.jp>
      Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      77594912
  5. 10 3月, 2009 1 次提交
  6. 05 3月, 2009 1 次提交
  7. 03 3月, 2009 2 次提交
  8. 04 2月, 2009 1 次提交
  9. 29 1月, 2009 4 次提交
  10. 27 1月, 2009 2 次提交
    • P
      sh: mach-highlander and mach-rsk require gpiolib. · ae5e6d05
      Paul Mundt 提交于
      Fix up the build for mach-highlander and mach-rsk. These operated on the
      assumption that GENERIC_GPIO support with an optional GPIOLIB was
      possible. This used to be true, but has not been the case since commit-id
      d56cc8bc661ac1ceded8d45ba2d53bb134fee17d ("sh: use gpiolib"), where the
      GENERIC_GPIO implementation was rewritten to use GPIOLIB directly.
      Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      ae5e6d05
    • M
      sh: use gpiolib · 69edbba0
      Magnus Damm 提交于
      This patch updates the SuperH gpio code to make use of gpiolib. The
      gpiolib callbacks get() and set() are lockless, but we use our own
      spinlock for the other operations to make sure hardware register
      bitfield accesses stay atomic.
      Signed-off-by: NMagnus Damm <damm@igel.co.jp>
      Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      69edbba0
  11. 21 1月, 2009 1 次提交
    • P
      sh: Kill off obsolete busses from arch/sh/Kconfig. · e16038ab
      Paul Mundt 提交于
      ISA can go away now that the hd6446x PCMCIA drivers no longer exist
      in-tree. The rationale for enabling CONFIG_ISA in the first place is
      likewise no longer valid given that the subsystem has changed since
      the time that assertion was valid.
      
      While we are at it, kill off SBUS, MCA, EISA, and so on. These are
      not supported and never will be.
      Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      e16038ab
  12. 22 12月, 2008 11 次提交
  13. 16 12月, 2008 1 次提交
  14. 31 10月, 2008 1 次提交
  15. 20 10月, 2008 2 次提交
    • M
      container freezer: implement freezer cgroup subsystem · dc52ddc0
      Matt Helsley 提交于
      This patch implements a new freezer subsystem in the control groups
      framework.  It provides a way to stop and resume execution of all tasks in
      a cgroup by writing in the cgroup filesystem.
      
      The freezer subsystem in the container filesystem defines a file named
      freezer.state.  Writing "FROZEN" to the state file will freeze all tasks
      in the cgroup.  Subsequently writing "RUNNING" will unfreeze the tasks in
      the cgroup.  Reading will return the current state.
      
      * Examples of usage :
      
         # mkdir /containers/freezer
         # mount -t cgroup -ofreezer freezer  /containers
         # mkdir /containers/0
         # echo $some_pid > /containers/0/tasks
      
      to get status of the freezer subsystem :
      
         # cat /containers/0/freezer.state
         RUNNING
      
      to freeze all tasks in the container :
      
         # echo FROZEN > /containers/0/freezer.state
         # cat /containers/0/freezer.state
         FREEZING
         # cat /containers/0/freezer.state
         FROZEN
      
      to unfreeze all tasks in the container :
      
         # echo RUNNING > /containers/0/freezer.state
         # cat /containers/0/freezer.state
         RUNNING
      
      This is the basic mechanism which should do the right thing for user space
      task in a simple scenario.
      
      It's important to note that freezing can be incomplete.  In that case we
      return EBUSY.  This means that some tasks in the cgroup are busy doing
      something that prevents us from completely freezing the cgroup at this
      time.  After EBUSY, the cgroup will remain partially frozen -- reflected
      by freezer.state reporting "FREEZING" when read.  The state will remain
      "FREEZING" until one of these things happens:
      
      	1) Userspace cancels the freezing operation by writing "RUNNING" to
      		the freezer.state file
      	2) Userspace retries the freezing operation by writing "FROZEN" to
      		the freezer.state file (writing "FREEZING" is not legal
      		and returns EIO)
      	3) The tasks that blocked the cgroup from entering the "FROZEN"
      		state disappear from the cgroup's set of tasks.
      
      [akpm@linux-foundation.org: coding-style fixes]
      [akpm@linux-foundation.org: export thaw_process]
      Signed-off-by: NCedric Le Goater <clg@fr.ibm.com>
      Signed-off-by: NMatt Helsley <matthltc@us.ibm.com>
      Acked-by: NSerge E. Hallyn <serue@us.ibm.com>
      Tested-by: NMatt Helsley <matthltc@us.ibm.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      dc52ddc0
    • M
      sh: GPIO and pinmux base code · 2967dab1
      Magnus Damm 提交于
      This patch adds gpio code together with the pinmux table parser.
      In the future we should optimize this and switch back to gpiolib.
      Signed-off-by: NMagnus Damm <damm@igel.co.jp>
      Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      2967dab1
  16. 29 9月, 2008 1 次提交
  17. 21 9月, 2008 2 次提交
  18. 17 9月, 2008 1 次提交
  19. 13 9月, 2008 1 次提交
  20. 12 9月, 2008 3 次提交
  21. 08 9月, 2008 1 次提交