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2011-06-15MIPS: oprofile: Add callgraph supportDaniel Kalmar4-1/+179
Stack unwinding is done by code examination. For kernelspace, the already existing unwind function is utilized that uses kallsyms to quickly find the beginning of functions. For userspace a new function was added that examines code at and before the pc. Signed-off-by: Daniel Kalmar <kalmard@homejinni.com> Signed-off-by: Gergely Kis <gergely@homejinni.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
2011-03-17mips: change to new flag variablematt mooney1-1/+1
Replace EXTRA_CFLAGS with ccflags-y. Signed-off-by: matt mooney <mfm@muteddisk.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-05MIPS: Oprofile: Fixup of loongson2_exit()Wu Zhangjin1-1/+7
When exiting from loongson2_exit(), we need to reset the counter register too, this patch adds a function reset_counters() to do it, by the way, this function will be shared by Perf. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1199/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-22MIPS: Oprofile: Loongson: Cleanup the commentsWu Zhangjin1-20/+5
Removes some out-of-date comments and empty lines. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1204/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-22MIPS: Oprofile: Loongson: Cleanup of the macrosWu Zhangjin1-11/+11
The _EXL, _KERNEL etc. bits are in the performance control register so use _PERFCTRL prefix instead of _PERFCNT. While at it make the macro more readable, use _ENABLE instead of _INT_EN suffix to describe the interrupt enable bit. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1203/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-22MIPS: Oprofile: Loongson: Remove unused variable from loongson2_cpu_setup()Wu Zhangjin1-4/+1
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1202/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-22MIPS: Oprofile: Loongson: Remove useless parenthesesWu Zhangjin1-1/+1
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1201/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-22MIPS: Oprofile: Loongson: Unify macro for setting eventsWu Zhangjin1-4/+4
Unified macro for counter0 and counter1 to set the event in the control register. This will be needed by Perf. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1200/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-16 MIPS: Oprofile: Fix Loongson irq handlerWu Zhangjin1-1/+1
The interrupt enable bit for the performance counters is in the Control Register $24, not in the counter register. loongson2_perfcount_handler(), we need to use Reported-by: Xu Hengyang <hengyang@mail.ustc.edu.cn> Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1198/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2010-02-27MIPS: Loongson: Remove pointless sample_lock from oprofile code.Ralf Baechle1-7/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Make various locks static.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Simplify the weak annotation with __weakWu Zhangjin1-3/+4
Found by $ find arch/mips/ -name "*.c" | xargs -i grep -H weak {} | grep -v __weak [Ralf: Made this bulletproof by including <linux/compiler.h>] Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/874/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Loongson: Change the Email address of Wu ZhangjinWu Zhangjin1-1/+1
Currently wuzj@lemote.com is not usable; change it to wuzhangjin@gmail.com. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: yanh@lemote.com Cc: huhb@lemote.com Cc: zhangfx@lemote.com Patchwork: http://patchwork.linux-mips.org/patch/829/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-12-17MIPS: oprofile: Only do performance counter handling for counter interruptsWu Zhangjin1-1/+4
In Loongson2f IP6 is shared by bonito and perfcounters so we need to avoid do_IRQ for perfcounter when the interrupt is from bonito. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-11-02MIPS: Oprofile: Rename cpu_type from godson2 to loongson2Wu Zhangjin1-1/+1
Unify the naming method between kernel and the user-space oprofile tool. Because loongson is used instead of godson in most of the places, we agreed to use loongson instead, which will simplify future maintenance. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Acked-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-30MIPS: Loongson2: Fix typo "enalbe" -> "enable"Uwe Kleine-König1-7/+7
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Yanhua <yanh@lemote.com> Cc: Robert Richter <robert.richter@amd.com> Acked-by: Wu Zhangjin <wuzj@lemote.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17MIPS: Loongson: Add oprofile supportWu Zhangjin3-0/+182
This kernel support is needed by the user-space tool:oprofile to profile linux kernel or applications via loongson2 performance counters. you can enable this driver via CONFIG_OPROFILE = y or m. On Loongson2 there are two performance counters, each one can count 16 events respectively. when anyone of the performance counter overflows, an interrupt will be generated and is routed to the IRQ MIPS_CPU_IRQ_BASE + 6. Signed-off-by: Yanhua <yanh@lemote.com> Signed-off-by: Wu Zhangjin <wuzj@lemote.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15oprofile: more whitespace fixesRobert Richter3-3/+3
Signed-off-by: Robert Richter <robert.richter@amd.com>
2008-07-16generic-ipi: more merge falloutIngo Molnar1-2/+2
fix more API change fallout in recently merged upstream changes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-26on_each_cpu(): kill unused 'retry' parameterJens Axboe1-3/+3
It's not even passed on to smp_call_function() anymore, since that was removed. So kill it. Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-05-12[MIPS] Fix build failure in mips oprofile codeThiemo Seufer1-3/+3
This patch fixes a warning-as-error induced build failure of 64bit MIPS kernels. Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-28[MIPS] unexport null_perf_irq() and make it staticDmitri Vorobiev2-2/+4
This patch unexports the null_perf_irq() symbol, and simultaneously makes this function static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-28[MIPS] Add support for MIPS CMP platform.Ralf Baechle2-10/+25
Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Extend performance counter event field.Ralf Baechle1-1/+1
The latest draft version of the MIPS Architecture Specification extends the 6 bit event field by adding a directly adjacent 4-bit EventExt field for a total of 10 bits. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-12-06[MIPS] Oprofile: Fix computation of number of counters.Ralf Baechle1-6/+38
VSMP kernels will split the available performance counters between the two processors / cores. But don't do this when we're not on a VSMP system ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-19Combine instrumentation menus in kernel/Kconfig.instrumentationMathieu Desnoyers1-23/+0
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>
2007-10-12[MIPS] Fix "no space between function name and open parenthesis" warnings.Ralf Baechle2-2/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-12[MIPS] Allow hardwiring of the CPU type to a single type for optimization.Ralf Baechle2-3/+3
This saves a few k on systems which only ever ship with a single CPU type. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-01[MIPS] Oprofile: Fix rm9000 performance counter handlerDajie Tan1-0/+1
The new type of irq handler remove a parameter (struct pt_regs *),but someone forgot to supply it. Signed-off-by: Dajie Tan <jiankemeng@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-14[MIPS] Separate performance counter interruptsChris Dearman1-2/+5
Support for performance counter overflow interrupt that is on a separate interrupt from the timer. Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-04-25[MIPS] Fix oprofile logic to physical counter remappingRalf Baechle1-1/+1
This did cause oprofile to fail on non-multithreaded systems with more than 2 processors such as the BCM1480. Reported by Manish Lachwani (mlachwani@mvista.com). Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-13[MIPS] Oprofile: Reset all performance registers for MIPS_MT_SMP configsChris Dearman1-9/+13
Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-04[MIPS] Oprofile: Add missing break statements.Ralf Baechle1-0/+2
This was causing oprofile to fail on R10000, R12000, R14000. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-20[MIPS] Fix Kconfig typo bugRalf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Do not allow oprofile to be enabled on SMTC.Ralf Baechle1-1/+1
Oprofile cannot work on SMTC due to the limited number of counters. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-30[MIPS] Oprofile: kernel support for the R10000.Ralf Baechle3-5/+31
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-31[MIPS] Oprofile: Fix MIPSxx counter number detection.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-31[MIPS] Oprofile: fix on non-VSMP / non-SMTC SMP configurations.Ralf Baechle1-4/+6
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19[MIPS] A few more pt_regs fixups.Ralf Baechle1-2/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19[MIPS] Delete unneeded pt_regs forward declaration.Ralf Baechle1-2/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-08[MIPS] Complete fixes after removal of pt_regs argument to int handlers.Ralf Baechle2-5/+6
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-07-14[MIPS] Oprofile: Fix build failure due to warning and -Werror.Thiemo Seufer1-0/+2
Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-06-30[MIPS] Oprofile: Support VSMP on 34K.Ralf Baechle1-42/+106
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-06-26[PATCH] oprofile: Fix unnecessary clevernessMarkus Armbruster1-1/+1
nmi_create_files() in arch/i386/oprofile/nmi_int.c depends on model->num_counters (number of performance counters) being less than 10. While this is currently the case, it's too clever by half. Other archs aren't quite as clever: they assume 100. I suggest to normalize them all to 1000. Cc: Philippe Elie <phil.el@wanadoo.fr> Cc: John Levon <levon@movementarian.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-06[MIPS] Fix modpost warning: Rename op_model_xxx to op_model_xxx_ops.Atsushi Nemoto3-21/+21
The modpost uses a whitelist for commonly used suffix on checking the section mismatch. Adding "_ops" suffix to op_modex_xxx get rid of this modpost warning. WARNING: arch/mips/oprofile/oprofile.o - Section mismatch: reference to .init.text: from .data after 'op_model_mipsxx' (at offset 0x528) Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-06-01[MIPS] Fix detection and handling of the 74K processor.Chris Dearman2-0/+5
Nothing exciting; Linux just didn't know it yet so this is most adding a value to a case statement. Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-27[MIPS] Oprofile: fix sparse warning.Ralf Baechle1-1/+1
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-27[MIPS] Fix oprofile module unloadingRalf Baechle1-1/+2
When unloading oprofile module with timer-mode, oprofile_arch_exit dereferences a NULL pointer. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Oprofile: Support for 34K UP kernels.Ralf Baechle2-0/+7
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] SB1: Add oprofile support.Mark Mason3-0/+8
Signed-off-by: Mark Mason <mason@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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