- 17 7月, 2014 1 次提交
-
-
由 Davidlohr Bueso 提交于
The arch_mutex_cpu_relax() function, introduced by 34b133f8, is hacky and ugly. It was added a few years ago to address the fact that common cpu_relax() calls include yielding on s390, and thus impact the optimistic spinning functionality of mutexes. Nowadays we use this function well beyond mutexes: rwsem, qrwlock, mcs and lockref. Since the macro that defines the call is in the mutex header, any users must include mutex.h and the naming is misleading as well. This patch (i) renames the call to cpu_relax_lowlatency ("relax, but only if you can do it with very low latency") and (ii) defines it in each arch's asm/processor.h local header, just like for regular cpu_relax functions. On all archs, except s390, cpu_relax_lowlatency is simply cpu_relax, and thus we can take it out of mutex.h. While this can seem redundant, I believe it is a good choice as it allows us to move out arch specific logic from generic locking primitives and enables future(?) archs to transparently define it, similarly to System Z. Signed-off-by: NDavidlohr Bueso <davidlohr@hp.com> Signed-off-by: NPeter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Anton Blanchard <anton@samba.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Bharat Bhushan <r65777@freescale.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Chris Zankel <chris@zankel.net> Cc: David Howells <dhowells@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Cc: Dominik Dingel <dingel@linux.vnet.ibm.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: Jason Wang <jasowang@redhat.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Joe Perches <joe@perches.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Joseph Myers <joseph@codesourcery.com> Cc: Kees Cook <keescook@chromium.org> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Neuling <mikey@neuling.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Mikael Starvik <starvik@axis.com> Cc: Nicolas Pitre <nico@linaro.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: Qiaowei Ren <qiaowei.ren@intel.com> Cc: Rafael Wysocki <rafael.j.wysocki@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Steven Miao <realmz6@gmail.com> Cc: Steven Rostedt <srostedt@redhat.com> Cc: Stratos Karafotis <stratosk@semaphore.gr> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Vasily Kulikov <segoon@openwall.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com> Cc: Waiman Long <Waiman.Long@hp.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: adi-buildroot-devel@lists.sourceforge.net Cc: linux390@de.ibm.com Cc: linux-alpha@vger.kernel.org Cc: linux-am33-list@redhat.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-c6x-dev@linux-c6x.org Cc: linux-cris-kernel@axis.com Cc: linux-hexagon@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux@lists.openrisc.net Cc: linux-m32r-ja@ml.linux-m32r.org Cc: linux-m32r@ml.linux-m32r.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-metag@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: linux-xtensa@linux-xtensa.org Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/1404079773.2619.4.camel@buesod1.americas.hpqcorp.netSigned-off-by: NIngo Molnar <mingo@kernel.org>
-
- 03 10月, 2012 1 次提交
-
-
由 David Howells 提交于
Convert #include "..." to #include <path/...> in kernel system headers. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: NDave Jones <davej@redhat.com>
-
- 10 5月, 2012 2 次提交
-
-
由 Phil Edworthy 提交于
This is an sh2a device (max 266MHz) with FPU, video display controller (VDC), 8 serial ports, 4 I2C channels, 3 CAN ports, SD and on-chip USB. Signed-off-by: NPhil Edworthy <phil.edworthy@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Phil Edworthy 提交于
This is an sh2a device with FPU, video display controller (VDC), 8 serial ports, 3 I2C channels, 2 CAN ports, SD and on-chip USB. Signed-off-by: NPhil Edworthy <phil.edworthy@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 08 5月, 2012 1 次提交
-
-
由 Thomas Gleixner 提交于
cpuidle uses generic kick_all_cpus_sync() now. Remove the unused code. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mundt <lethal@linux-sh.org> Link: http://lkml.kernel.org/r/20120507175652.461648208@linutronix.de
-
- 26 4月, 2012 1 次提交
-
-
由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Acked-by: NPaul Mundt <lethal@linux-sh.org> Link: http://lkml.kernel.org/r/20120420124557.855203626@linutronix.de
-
- 17 4月, 2012 1 次提交
-
-
由 Nobuhiro Iwamatsu 提交于
This implements initial support for the SH7734. This adds support SCIF, TMU and RTC. Signed-off-by: NNobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 29 3月, 2012 1 次提交
-
-
由 David Howells 提交于
Disintegrate asm/system.h for SH. Signed-off-by: NDavid Howells <dhowells@redhat.com> cc: linux-sh@vger.kernel.org
-
- 13 1月, 2011 1 次提交
-
-
由 Magnus Damm 提交于
Add probe support for the sh7372 SH4AL-DSP core. The most common use case for this is when the system boots from the ARM core in the sh7372 and uses the SH core for application offload as a slave CPU. May also be used to boot the sh7372 from the SH core. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 26 10月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
CPUs can be in either the legacy 29-bit or 32-bit physical addressing modes. This follows the x86 approach of tracking the phys bits in cpuinfo and exposing it to userspace through procfs. This change was requested to permit kexec-tools to detect the physical addressing mode in order to determine the appropriate address mangling. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 26 4月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This provides a cache of the secondary CPUs idle loop for the cases where hotplug simply enters a low power state instead of resetting or powering off the core. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 21 4月, 2010 2 次提交
-
-
由 Paul Mundt 提交于
All of the regular CPU init path needs to be __cpuinit annotated for CPU hotplug. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
This does a detect_cpu_and_cache_system() -> cpu_probe() rename, tidies up the unused return value, and stuffs it under __cpuinit in preparation for CPU hotplug. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 23 2月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This hooks up the SET/GET_UNALIGN_CTL knobs cribbing the bulk of it from the PPC and ia64 implementations. The thread flags happen to be the logical inverse of what the global fault mode is set to, so this works out pretty cleanly. By default the global fault mode is used, with tasks now being able to override their own settings via prctl(). Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 19 1月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This updates the sh64 processor info with the sh32 changes in order to tie in to the generic task_xstate management code. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 18 1月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This adds in a mem_init_done to work out when a standard ioremap() is possible, falling back to the fixmap based ioremap otherwise. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 21 8月, 2009 1 次提交
-
-
由 Yoshihiro Shimoda 提交于
Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 15 8月, 2009 1 次提交
-
-
由 Paul Mundt 提交于
This adds a family member to struct sh_cpuinfo, which allows us to fall back more on the probe routines to work out what sort of subtype we are running on. This will be used by the CPU cache initialization code in order to first do family-level initialization, followed by subtype-level optimizations. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 11 6月, 2009 1 次提交
-
-
由 Magnus Damm 提交于
This patch reworks the mode pin code to keep the pin definitions in one place. The mode pins values are now the value of the bit instead of bit number. With this patch in place the sh7785 header file contains mode pin comments. The sh7785 clock code and the sh7785lcr board code are updated to reflect the new shared mode pins. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 01 6月, 2009 1 次提交
-
-
由 Magnus Damm 提交于
Add mode pin support for the SuperH architecture V2. With this patch applied the board code can add their own function to export the cpu mode pin configuration. In most cases this will be a constant bitmap, but boards that allow reading this from a register can instead read out the pin state from hardware. The code warns if a pin is tested but no board specific mode pin function has been provided. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 16 4月, 2009 1 次提交
-
-
由 Kuninori Morimoto 提交于
This implements initial support for the SH-Mobile R2R CPU. Based on Rev 0.11 of the initial SH7724 hardware manual. Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 03 3月, 2009 1 次提交
-
-
由 Kuninori Morimoto 提交于
This adds preliminary support for the SH7786 CPU subtype. While this is a dual-core CPU, only UP is supported for now. L2 cache support is likewise not yet implemented. More information on this particular CPU subtype is available at: http://www.renesas.com/fmwk.jsp?cnt=sh7786_root.jsp&fp=/products/mpumcu/superh_family/sh7780_series/sh7786_group/Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 22 12月, 2008 2 次提交
-
-
由 Peter Griffin 提交于
This patch adds support for the SH-2A FPU based SH7201 processor subtype. Signed-off-by: NPeter Griffin <pgriffin@mpc-data.co.uk> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 17 9月, 2008 1 次提交
-
-
由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 08 9月, 2008 1 次提交
-
-
由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 29 7月, 2008 1 次提交
-
-
由 Paul Mundt 提交于
This follows the sparc changes a439fe51. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 28 7月, 2008 1 次提交
-
-
由 Paul Mundt 提交于
This moves get_fs/set_fs() and friends in to asm/segment.h. The mm_segment_t definition is likewise consolidated from the _32/_64 split. This is prepatory groundwork for using the generic address space limit and verification routines across mmu/nommu configs. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 19 4月, 2008 2 次提交
-
-
由 Paul Mundt 提交于
This adds basic support for the SH7723 MobileR2 CPU. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 26 3月, 2008 1 次提交
-
-
由 Paul Mundt 提交于
Presently with preempt enabled there's the possibility to be preempted after the TIF_USEDFPU test and the register save, leading to bogus state post-__switch_to(). Use an explicit preempt_disable()/enable() pair around unlazy_fpu()/clear_fpu() to avoid this. Follows the x86 change. Reported-by: NTakuo Koguchi <takuo.koguchi.sw@hitachi.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 14 2月, 2008 1 次提交
-
-
由 Magnus Damm 提交于
This patch adds sh7366 cpu supports. Just the most basic things like interrupt controller, clocks and serial port are included at this point. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 28 1月, 2008 8 次提交
-
-
由 Yoshihiro Shimoda 提交于
Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Yoshihiro Shimoda 提交于
Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
This adds support for the SH7263 (SH-2A) CPU. This particular CPU is a superset of SH7203, adding some additional peripheral blocks and hooking up additional (reserved on SH7203) vectors in the INTC block. No visibly nasty surprises, yet.. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
This adds support for the SH7203 (SH-2A) CPU. Signed-off-by: NKieran Bingham <kbingham@mpc-data.co.uk> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-