- 19 3月, 2011 5 次提交
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由 David Howells 提交于
Create generic kernel debugger hooks in the MN10300 arch and make gdbstub use them. This is a preparation for KGDB support. Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 David Howells 提交于
Introduce a general config option for kernel debugger hooks so that both gdbstub and kgdb can use it and add a header file for both debuggers to use. Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Thomas Gleixner 提交于
All chips converted. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 David Howells 提交于
Select HAVE_GENERIC_HARDIRQS rather than GENERIC_HARDIRQS in MN10300's main Kconfig file to avoid this warning: warning: (MN10300) selects GENERIC_HARDIRQS which has unmet direct dependencies (HAVE_GENERIC_HARDIRQS) Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Thomas Gleixner 提交于
mn10300 implements clocksource and clockevents and selects them unconditionally in Kconfig. Remove the stale code which seems to be a leftover of the conversion. Cleanup the configuration switches as well. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NJohn Stultz <johnstul@us.ibm.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Mark Salter <msalter@redhat.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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- 21 1月, 2011 2 次提交
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由 Thomas Gleixner 提交于
No functional change. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NDavid Howells <dhowells@redhat.com>
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由 Thomas Gleixner 提交于
All architectures are finally converted. Remove the cruft. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Mike Frysinger <vapier@gentoo.org> Cc: David Howells <dhowells@redhat.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Michal Simek <monstr@monstr.eu> Acked-by: NDavid Howells <dhowells@redhat.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com>
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- 14 1月, 2011 1 次提交
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由 Amerigo Wang 提交于
For arch which needs USE_GENERIC_SMP_HELPERS, it has to select USE_GENERIC_SMP_HELPERS, rather than leaving a choice to user, since they don't provide their own implementions. Also, move on_each_cpu() to kernel/smp.c, it is strange to put it in kernel/softirq.c. For arch which doesn't use USE_GENERIC_SMP_HELPERS, e.g. blackfin, only on_each_cpu() is compiled. Signed-off-by: NAmerigo Wang <amwang@redhat.com> Cc: David Howells <dhowells@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 28 10月, 2010 12 次提交
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由 Akira Takeuchi 提交于
Change externally visible "Matsushita" instances to "Panasonic" throughout the MN10300 arch code. Signed-off-by: NAkira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: NKiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Akira Takeuchi 提交于
Add support for SMSC911X and SMC911X for the ASB2364 unit. Signed-off-by: NAkira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: NKiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> cc: steve.glendinning@smsc.com cc: netdev@vger.kernel.org
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由 Mark Salter 提交于
Implement generic time support for MN10300. Signed-off-by: NMark Salter <msalter@redhat.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Akira Takeuchi 提交于
Implement the Panasonic MN10300 AM34 CPU subarch and implement SMP support for MN10300. Also implement support for the MN2WS0060 processor and the ASB2364 evaluation board which are AM34 based. Signed-off-by: NAkira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: NKiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Akira Takeuchi 提交于
Make the settings of interrupt priorities used by various services configurable at run time. Signed-off-by: NAkira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: NKiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Akira Takeuchi 提交于
Make the FPU operate in non-lazy mode under SMP so that when the process that is currently using the FPU migrates to a different CPU, we don't have to ping its previous CPU to flush the FPU context. Signed-off-by: NAkira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: NKiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Akira Takeuchi 提交于
Make controllable the use of the PIDR register to mark TLB entries as belonging to particular processes. Signed-off-by: NAkira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: NKiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Akira Takeuchi 提交于
An AM34 erratum requires MMUCTR read and write on entry to certain exceptions, prior to EPSW.NMID being cleared to allow NMIs to happen. Signed-off-by: NAkira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: NKiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 David Howells 提交于
The AM34 core is able to do cache snooping, and so can skip some of the cache flushing. Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 David Howells 提交于
Split the cache bits out of arch/mn10300/Kconfig as they're quite complex. Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Akira Takeuchi 提交于
Add CPU register declarations for the AM34 subarch. Signed-off-by: NAkira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: NKiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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由 Akira Takeuchi 提交于
Differentiate AM33_2 and AM33_3 CPU cores in configuration. The MN103E010 processor contains an AM33_2 core. Whilst we're at it, prepare for AM34-based stuff by declaring AM34_2 too. Signed-off-by: NAkira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: NKiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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- 24 9月, 2010 1 次提交
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由 Mark Salter 提交于
Remove specification of HAVE_ARCH_TRACEHOOK for MN10300 as the arch does not support it at this time. Signed-off-by: NMark Salter <msalter@redhat.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 20 9月, 2010 1 次提交
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由 Arnaud Lacombe 提交于
Signed-off-by: NArnaud Lacombe <lacombar@gmail.com> Reviewed-by: NSam Ravnborg <sam@ravnborg.org> Reviewed-by: NMichal Marek <mmarek@suse.cz>
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- 27 7月, 2010 1 次提交
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由 John Stultz 提交于
Now that all arches have been converted over to use generic time via clocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME config option and simplify the generic code. Signed-off-by: NJohn Stultz <johnstul@us.ibm.com> LKML-Reference: <1279068988-21864-4-git-send-email-johnstul@us.ibm.com> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 13 3月, 2010 1 次提交
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由 John Stultz 提交于
This patch converts the mn10300 architecture to use the generic read_persistent_clock and update_persistent_clock interfaces, reducing the amount of arch specific code we have to maintain, and allowing for further cleanups in the future. I have not built or tested this patch, so help from arch maintainers would be appreciated. Signed-off-by: NJohn Stultz <johnstul@us.ibm.com> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <1267675049-12337-3-git-send-email-johnstul@us.ibm.com> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 12 6月, 2009 1 次提交
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由 David Howells 提交于
Add utrace/tracehooks support to MN10300. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 10 4月, 2009 1 次提交
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由 David Howells 提交于
Kill MN10300's own profiling Kconfig as this is superfluous given that the profiling options have moved to init/Kconfig and arch/Kconfig. Not only is this now superfluous, but the dependencies are not correct. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 21 2月, 2009 1 次提交
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由 David Howells 提交于
oprofile for MN10300 seems to have been broken by the advent of the new tracing framework. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 20 10月, 2008 1 次提交
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由 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>
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- 07 9月, 2008 1 次提交
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由 David Woodhouse 提交于
We don't need this any more; arguably we never really did. Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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- 11 5月, 2008 1 次提交
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由 Linus Torvalds 提交于
The generic semaphore rewrite had a huge performance regression on AIM7 (and potentially other BKL-heavy benchmarks) because the generic semaphores had been rewritten to be simple to understand and fair. The latter, in particular, turns a semaphore-based BKL implementation into a mess of scheduling. The attempt to fix the performance regression failed miserably (see the previous commit 00b41ec2 'Revert "semaphore: fix"'), and so for now the simple and sane approach is to instead just go back to the old spinlock-based BKL implementation that never had any issues like this. This patch also has the advantage of being reported to fix the regression completely according to Yanmin Zhang, unlike the semaphore hack which still left a couple percentage point regression. As a spinlock, the BKL obviously has the potential to be a latency issue, but it's not really any different from any other spinlock in that respect. We do want to get rid of the BKL asap, but that has been the plan for several years. These days, the biggest users are in the tty layer (open/release in particular) and Alan holds out some hope: "tty release is probably a few months away from getting cured - I'm afraid it will almost certainly be the very last user of the BKL in tty to get fixed as it depends on everything else being sanely locked." so while we're not there yet, we do have a plan of action. Tested-by: NYanmin Zhang <yanmin_zhang@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Alexander Viro <viro@ftp.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 24 2月, 2008 1 次提交
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由 David Howells 提交于
Define HZ as a config option. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 2月, 2008 1 次提交
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由 David Howells 提交于
Add architecture support for the MN10300/AM33 CPUs produced by MEI to the kernel. This patch also adds board support for the ASB2303 with the ASB2308 daughter board, and the ASB2305. The only processor supported is the MN103E010, which is an AM33v2 core plus on-chip devices. [akpm@linux-foundation.org: nuke cvs control strings] Signed-off-by: NMasakazu Urade <urade.masakazu@jp.panasonic.com> Signed-off-by: NKoichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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