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2007-10-29[MIPS] time: Merge lasat plat_timer_setup into plat_time_init.Ralf Baechle
Since the cp0 compare interrupt handler isn't initialized by the time plat_time_init is called don't set IE_IRQ5 anymore, cevt-r4k.c will do that a little later itself. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] time: Remove wrppmc's definition of plat_timer_setup.Ralf Baechle
The only thing it used to do is now done by cevt-r4k.c. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] time: Cause platform definitions of plat_timer_setup to cause error.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] Alchemy: Convert from plat_timer_setup to plat_time_init.Ralf Baechle
The old plat_timer_setup hook is no longer getting called so the Alchemy time initialization was getting skipped. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] vpe: Use p_paddr instead of p_vaddr loader.Ralf Baechle
This subtle difference makes ELF overlays work. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] Cleanup random difference between the lmo and kernel.org tree.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] time: set clock before clockevent_delta2ns() in GT641xx.Yoichi Yuasa
clockevent_delta2ns() use the shift and mult value, so clockevent_set_clock() should be called first. Pointed out by Atsushi Nemoto. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] time: Use non-interrupt locks in GT641xx clockevent driverYoichi Yuasa
set_next_event() and set_mode() are always called with interrupt disabled. irqsave and irqrestore are not necessary for spinlock. Pointed out by Atsushi Nemoto. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] Alchemy: micro-optimizatize time code.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] Alchemy: Nuke homebrew setup_irq(), it's broken and unnecessary.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-29[MIPS] SMTC: Allow control over TC assignment to vpe0.Kevin D. Kissell
Modify the SMTC initialization code to allow boot-time specification not only of how many VPEs and TCs to use, but also how many TCs out of the allowed pool are to be bound to VPE 0. The new boot option is "vpe0tcs=N", where N is an integer. Using it in combination with the existing options allows arbitrary assignments across the 2 VPEs of a 34K. e.g. "maxtcs=3 vpe0tcs=1" forces VPE0 to have 1 TC, while VPE1 has 2, and "maxtcs=4 vpe0tcs=3" forces VPE0 to have 3 TCs, while VPE1 gets 1. If no vpe0tcs option is specified, the traditional algorithm of evenly dividing TCs between available VPEs, with the odd "slop" going to VPE0, is retained. The reason for doing this is to allow a finer balancing of TCs which can handle I/O interrupts on Malta (those on VPE 0) and those which cannot. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-23mips: sg_page() falloutJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] time: Make c0_compare_int_usable more bullet proof [MIPS] Kbuild: Use the new cc-cross-prefix feature. [MIPS] Fix include wrapper symbol to something sane. [MIPS] Malta: Delete dead code. [MIPS] time: Add GT641xx timer0 clockevent driver [MIPS] time: SMP-proofing of Sibyte clockevent/clocksource code. [MIPS] time: SMP/NUMA-proofing of IP27 HUB RT timer code. [MIPS] time: Fix calculation in clockevent_set_clock()
2007-10-22[MIPS] time: Make c0_compare_int_usable more bullet proofAtsushi Nemoto
Use write_c0_compare(read_c0_count()) to clear interrupt. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-22[MIPS] Kbuild: Use the new cc-cross-prefix feature.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-22[MIPS] Malta: Delete dead code.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-22[MIPS] time: Add GT641xx timer0 clockevent driverYoichi Yuasa
And make use of it for Cobalt. A few others such as the Malta could make use of it as well. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-22[MIPS] time: SMP-proofing of Sibyte clockevent/clocksource code.Ralf Baechle
The BCM148 has 4 cores but there are also just 4 generic timers available so use the ZBbus cycle counter instead of it. In addition the ZBbus counter also offers a much higher resolution and 64-bit counting so I'm considering a later complete conversion to it once I figure out if all members of the Sibyte SOC family support it - the docs seem to agree but the headers files seem to disagree ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-22[MIPS] time: SMP/NUMA-proofing of IP27 HUB RT timer code.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-22[MIPS] time: Fix calculation in clockevent_set_clock()Atsushi Nemoto
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-22Update arch/ to use sg helpersJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-20typo fixesMatt LaPlante
Most of these fixes were already submitted for old kernel versions, and were approved, but for some reason they never made it into the releases. Because this is a consolidation of a couple old missed patches, it touches both Kconfigs and documentation texts. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19Fix misspellings of "system", "controller", "interrupt" and "necessary".Robert P. J. Day
Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Delete totally outdated Documentation/mips/time.README [MIPS] Kill duplicated setup_irq() for cp0 timer [MIPS] Sibyte: Finish conversion to modern time APIs. [MIPS] time: Helpers to compute clocksource/event shift and mult values. [MIPS] SMTC: Build fix. [MIPS] time: Delete dead code. [MIPS] MIPSsim: Strip defconfig file to the bones.
2007-10-19Combine instrumentation menus in kernel/Kconfig.instrumentationMathieu Desnoyers
Quoting Randy: "It seems sad that this patch sources Kconfig.marker, a 7-line file, 20-something times. Yes, you (we) don't want to put those 7 lines into 20-something different files, so sourcing is the right thing. However, what you did for avr32 seems more on the right track to me: make _one_ Instrumentation support menu that includes PROFILING, OPROFILE, KPROBES, and MARKERS and then use (source) that in all of the arches." Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19Use helpers to obtain task pid in printks (arch code)Alexey Dobriyan
One of the easiest things to isolate is the pid printed in kernel log. There was a patch, that made this for arch-independent code, this one makes so for arch/xxx files. It took some time to cross-compile it, but hopefully these are all the printks in arch code. Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19remove asm/bitops.h includesJiri Slaby
remove asm/bitops.h includes including asm/bitops directly may cause compile errors. don't include it and include linux/bitops instead. next patch will deny including asm header directly. Cc: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19pid namespaces: define is_global_init() and is_container_init()Serge E. Hallyn
is_init() is an ambiguous name for the pid==1 check. Split it into is_global_init() and is_container_init(). A cgroup init has it's tsk->pid == 1. A global init also has it's tsk->pid == 1 and it's active pid namespace is the init_pid_ns. But rather than check the active pid namespace, compare the task structure with 'init_pid_ns.child_reaper', which is initialized during boot to the /sbin/init process and never changes. Changelog: 2.6.22-rc4-mm2-pidns1: - Use 'init_pid_ns.child_reaper' to determine if a given task is the global init (/sbin/init) process. This would improve performance and remove dependence on the task_pid(). 2.6.21-mm2-pidns2: - [Sukadev Bhattiprolu] Changed is_container_init() calls in {powerpc, ppc,avr32}/traps.c for the _exception() call to is_global_init(). This way, we kill only the cgroup if the cgroup's init has a bug rather than force a kernel panic. [akpm@linux-foundation.org: fix comment] [sukadev@us.ibm.com: Use is_global_init() in arch/m32r/mm/fault.c] [bunk@stusta.de: kernel/pid.c: remove unused exports] [sukadev@us.ibm.com: Fix capability.c to work with threaded init] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com> Acked-by: Pavel Emelianov <xemul@openvz.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Cedric Le Goater <clg@fr.ibm.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Herbert Poetzel <herbert@13thfloor.at> Cc: Kirill Korotaev <dev@sw.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19pid namespaces: round up the APIPavel Emelianov
The set of functions process_session, task_session, process_group and task_pgrp is confusing, as the names can be mixed with each other when looking at the code for a long time. The proposals are to * equip the functions that return the integer with _nr suffix to represent that fact, * and to make all functions work with task (not process) by making the common prefix of the same name. For monotony the routines signal_session() and set_signal_session() are replaced with task_session_nr() and set_task_session(), especially since they are only used with the explicit task->signal dereference. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Acked-by: Serge E. Hallyn <serue@us.ibm.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Cedric Le Goater <clg@fr.ibm.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19task cgroups: enable cgroups by default in some configsPaul Jackson
In pre-cgroup cpusets, a few config files enabled cpusets by default. Signed-off-by: Paul Jackson <pj@sgi.com> Cc: Paul Menage <menage@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19[MIPS] Kill duplicated setup_irq() for cp0 timerAtsushi Nemoto
Also many plat_timer_setup() can be killed too. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-19[MIPS] Sibyte: Finish conversion to modern time APIs.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-19[MIPS] time: Helpers to compute clocksource/event shift and mult values.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-19[MIPS] SMTC: Build fix.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-19[MIPS] time: Delete dead code.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-19[MIPS] MIPSsim: Strip defconfig file to the bones.Ralf Baechle
MIPSsim simulates only a barebone system, no point in a fancy kernel. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-18[MIPS] time: Move R4000 clockevent device code to separate configurable fileRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-18[MIPS] time: Delete dead cycles_per_jiffy, mips_timer_ack and null_timer_ackRalf Baechle
cycles_per_jiffy was only ever getting assigned and the function pointer not being called anymore and mips_timer_ack had gotten similarly stale. I leave the remaining assignments unfixed as a lighthouse pointing platform maintainers to what needs a rewrite. These changes make null_timer_ack() unreferenced, so delete that too. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-18[MIPS] IP32: Retire use of plat_timer_setup.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-18[MIPS] Jazz: Retire use of plat_timer_setup.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-18[MIPS] IP27: Convert to clock_event_device.Ralf Baechle
This separates the tick timer stuff from the generic MIPS time.c. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-18[MIPS] JMR3927: Convert to clock_event_device.Ralf Baechle
This separate the tick timer stuff from the generic MIPS time.c. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-18[MIPS] Always do the ARC64_TWIDDLE_PC thing.Thomas Bogendoerfer
Always jump to the place where the kernel is linked to. This helps where the bootloaders/proms ignores the start address inside the ELF header. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-17[MIPS] IP22: Fix hang due to messing with timer interrupt handlerThomas Bogendoerfer
As IP22 is now using do_IRQ for timer interrupt, don't mess with interrupt handler any longer Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-17[MIPS] Sibyte: Fix typos in sibyte clockevent driversAtsushi Nemoto
Fix some typo introduced on clockevent conversion. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-17[MIPS] Alchemy: replace last remaining instance of au_ffs with ffs.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-17[MIPS] Alchemy: Reformat PM code.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-17[MIPS] Alchemy: Fix build by conversion to irq_cpu.c.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-17[MIPS] MTX1: Enable CONFIG_CROSSCOMPILE in defconfig.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-17[MIPS] Probe for usability of cp0 compare interrupt.Ralf Baechle
Some processors offer the option of using the interrupt on which normally the count / compare interrupt would be signaled as a normal interupt pin. Previously this required some ugly hackery for each system which is much easier done by a quick and simple probe. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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