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2013-04-08microblaze: Use generic idle loopThomas Gleixner
The microblaze idle loop provides a polling and a non polling version, which are suprisingly both polling, just with slightly different instrumentation. Remove them and use the generic poller. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Michal Simek <monstr@monstr.eu> Link: http://lkml.kernel.org/r/20130321215234.687590459@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-04-08arch: Cleanup enable/disable_hltThomas Gleixner
enable/disable_hlt() does not need to be exported and can be killed on architectures which do not use it at all. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/20130321215233.377959540@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2012-11-16microblaze: switch to generic kernel_thread()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2012-05-16fork: move the real prepare_to_copy() users to arch_dup_task_struct()Suresh Siddha
Historical prepare_to_copy() is mostly a no-op, duplicated for majority of the architectures and the rest following the x86 model of flushing the extended register state like fpu there. Remove it and use the arch_dup_task_struct() instead. Suggested-by: Oleg Nesterov <oleg@redhat.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Link: http://lkml.kernel.org/r/1336692811-30576-1-git-send-email-suresh.b.siddha@intel.com Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Chris Zankel <chris@zankel.net> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-04-02microblaze: Fix ret_from_fork declarationMichal Simek
ret_from_fork is used by noMMU system too. It should be the part of patch "Disintegrate asm/system.h for Microblaze" (sha1: c40d04df152a1111c5bbcb632278394dabd2b73d) Signed-off-by: Michal Simek <monstr@monstr.eu>
2012-03-28Disintegrate asm/system.h for MicroblazeDavid Howells
Disintegrate asm/system.h for Microblaze. Not compiled. Signed-off-by: David Howells <dhowells@redhat.com> cc: microblaze-uclinux@itee.uq.edu.au
2011-07-25microblaze: Remove duplicated prototype of start_thread()Mathias Krause
The prototype for start_thread() is already present in the MMU/NOMMU independent part of the file. Remove the duplicate. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09microblaze: Remove r0_ram pointer and PTO alignmentMichal Simek
r0_ram pool was used for saving/restoring register content if hw exception happen. This poll was replaced by pt_pool_space with PT_SIZE size. Based on this change SAVE_STATE_ARG_SPACE was removed which caused that PTO offset is zero that's why is also removed. r0_ram space was used as scratchpad by v850. In early Microblaze Linux developing phase was this part of code blindly copied. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01microblaze: Remove segment.hMichal Simek
I would like to use asm-generic uaccess.h where are segment macros defined. This is just first step. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-05-26microblaze_mmu_v2: Update process creation for MMUMichal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-23microblaze: Add STATE_SAVE_ARG_SPACE for noMMU kernel tooMichal Simek
For noMMU kernel this change nothing bring but this change helps with MMU synchronization. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-23microblaze: Move start_thread to process.cMichal Simek
This change is due to upcomming MMU merge Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-23microblaze: Move task_pt_regs upMichal Simek
This change is important for easier merge with Microblaze MMU code. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-23microblaze: Rename kernel_mode to pt_mode in pt_regsMichal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-03-27microblaze_v8: system.h processor.hMichal Simek
Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>