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* perf bench: Improve sched-message.c with more comfortable outputHitoshi Mitake2009-11-10
| | | | | | | | | | | | | | | | | | | | | | | | This patch improves sched-message.c with more comfortable output. Change points are comment style description and formatting numerical values and its units. Example: | % perf bench sched messaging | # Running sched/messaging benchmark... | # 20 sender and receiver processes per group | # 10 groups == 400 processes run | | Total time: 1.490 [sec] Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257865442-20252-4-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org>
* perf bench: Improve sched-pipe.c with more comfortable outputHitoshi Mitake2009-11-10
| | | | | | | | | | | | | | | | | | | | | | | | This patch improves sched-pipe.c with more comfortable output. Change points are comment style description and formatting numerical values and its units. Example: | % ./perf bench sched pipe | # Running sched/pipe benchmark... | # Extecuted 1000000 pipe operations between two tasks | | Total time:5.822 [sec] | | 5.822553 usecs/op | 171745 ops/sec Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257865442-20252-3-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Improve builtin-bench.c for more friendly outputHitoshi Mitake2009-11-10
| | | | | | | | | | | | | | | | | | | | | | This patch makes output of perf bench more friendly. Current style of putput, keeping user wait and printing everything suddenly when we finish, may confuse users. So I improved it: | % perf bench sched messaging | # Running sched/messaging benchmark... <- printed right after invocation | # 20 sender and receiver processes per group | # 10 groups == 400 processes run | | Total time: 1.476 [sec] Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257865442-20252-2-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Modify command-list.txt for the entry of perf-benchHitoshi Mitake2009-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch modifies command-list.txt for the entry of perf-bench. So perf will show 'bench' in command list. Example: % perf usage: perf [--version] [--help] COMMAND [ARGS] The most commonly used perf commands are: annotate Read perf.data (created by perf record) and display annotated code bench General framework for benchmark suites ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ list List all symbolic event types probe Define new dynamic tracepoints record Run a command and record its profile into perf.data report Read perf.data (created by perf record) and display the profile sched Tool to trace/measure scheduler properties (latencies) stat Run a command and gather performance counter statistics timechart Tool to visualize total system behavior during a workload top System profiling tool. trace Read perf.data (created by perf record) and display trace output See 'perf help COMMAND' for more information on a specific command. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257853855-28934-4-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Add new document about perf-benchHitoshi Mitake2009-11-10
| | | | | | | | | | | This patch adds new document about perf-bench. Man page and html will be provided for user. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257853855-28934-3-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Clean up bench/bench.hIngo Molnar2009-11-10
| | | | | | | | | | | | | | | | Clean up initializers in bench.h: - No need to break the line for function prototypes, they are more readable in a single line. (even if checkpatch complains about it - We try to align definitions / structure fields vertically, to make it all a bit more readable. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257853855-28934-2-git-send-email-mitake@dcl.info.waseda.ac.jp>
* perf bench: Modify builtin-pipe.c for processing common optionsHitoshi Mitake2009-11-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch modifies builtin-pipe.c for processing common options. The first option added is "--format". Users of perf bench will be able to specify output style by --format. Usage example: % ./perf bench sched pipe # with no style specify (executing 1000000 pipe operations between two tasks) Total time:5.855 sec 5.855061 usecs/op 170792 ops/sec % ./perf bench --format=simple sched pipe # specified simple 5.988 Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257808802-9420-5-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org>
* perf bench: Modify bench/bench-messaging.c to adopt unified output formattingHitoshi Mitake2009-11-09
| | | | | | | | | | | | | | | | | | | | | | This patch modifies bench/bench-messaging.c to adopt unified output formatting: --format option. Usage example: % ./perf bench sched messaging # with no style specify (20 sender and receiver processes per group) (10 groups == 400 processes run) Total time:1.431 sec % ./perf bench --format=simple sched messaging # specified simple 1.431 Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257808802-9420-4-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Modify builtin-bench.c for processing common optionsHitoshi Mitake2009-11-09
| | | | | | | | | | | | | | | | | | | | | | | | This patch modifies builtin-bench.c for processing common options. The first option added is "--format". Users of perf bench will be able to specify output style by --format. Usage example: % ./perf bench sched messaging # with no style specify (20 sender and receiver processes per group) (10 groups == 400 processes run) Total time:1.431 sec % ./perf bench --format=simple sched messaging # specified simple 1.431 Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257808802-9420-3-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Add format constants to bench.h for unified output formattingHitoshi Mitake2009-11-09
| | | | | | | | | | | | This patch adds some constants and extern declaration to bench.h. These are used for unified output formatting of 'perf bench'. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1257808802-9420-2-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Fix bench/sched-pipe.c to wait for child processHitoshi Mitake2009-11-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Ingo reported this small 'perf bench sched pipe' output problem: | $ ./perf bench sched pipe | (executing 1000000 pipe operations between two tasks) | | Total time:4.898 sec | $ 4.898586 usecs/op | 204140 ops/sec | | the shell prompt came back before the usecs/op and ops/sec line | was printed. Process teardown race, lack of wait() or so? This caused by lack of calling waitpid() by parent process, so I added it. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Kosina <jkosina@suse.cz> LKML-Reference: <1257737465-7546-1-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Add subcommand 'bench' to the MakefileHitoshi Mitake2009-11-08
| | | | | | | | | | | | | | | This patch modifies Makefile for new files related to 'bench' subcommand. The new code is active from this point on. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: fweisbec@gmail.com Cc: Jiri Kosina <jkosina@suse.cz> LKML-Reference: <1257381097-4743-8-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Add new subcommand 'bench' to perf.cHitoshi Mitake2009-11-08
| | | | | | | | | | | | | | This patch modifies perf.c for invoking 'bench' subcommand. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: fweisbec@gmail.com Cc: Jiri Kosina <jkosina@suse.cz> LKML-Reference: <1257381097-4743-7-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Modify builtin.h for new prototypeHitoshi Mitake2009-11-08
| | | | | | | | | | | | | | This patch modifies builtin.h to add prototype of cmd_bench(). Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: fweisbec@gmail.com Cc: Jiri Kosina <jkosina@suse.cz> LKML-Reference: <1257381097-4743-6-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Add builtin-bench.c: General framework for benchmark suitesHitoshi Mitake2009-11-08
| | | | | | | | | | | | | | | This patch adds builtin-bench.c builtin-bench.c is a general framework for benchmark suites. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: fweisbec@gmail.com Cc: Jiri Kosina <jkosina@suse.cz> LKML-Reference: <1257381097-4743-5-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Add sched-pipe.c: Benchmark for pipe() system callHitoshi Mitake2009-11-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds bench/sched-pipe.c. bench/sched-pipe.c is a benchmark program to measure performance of pipe() system call. This benchmark is based on pipe-test-1m.c by Ingo Molnar: http://people.redhat.com/mingo/cfs-scheduler/tools/pipe-test-1m.c Example of use: % perf bench sched pipe (executing 1000000 pipe operations between two tasks) Total time:4.499 sec 4.499179 usecs/op 222262 ops/sec % perf bench sched pipe -s -l 1000 0.015 Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: fweisbec@gmail.com Cc: Jiri Kosina <jkosina@suse.cz> LKML-Reference: <1257381097-4743-4-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Add sched-messaging.c: Benchmark for scheduler and IPC ↵Hitoshi Mitake2009-11-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mechanisms based on hackbench This patch adds bench/sched-messaging.c. This benchmark measures performance of scheduler and IPC mechanisms, and is based on hackbench by Rusty Russell. Example of usage: % perf bench sched messaging -g 20 -l 1000 -s 5.432 # in sec % perf bench sched messaging # run with default options (20 sender and receiver processes per group) (10 groups == 400 processes run) Total time:0.308 sec % perf bench sched messaging -t -g 20 # # be multi-thread, with 20 groups (20 sender and receiver threads per group) (20 groups == 800 threads run) Total time:0.582 sec ( Rusty is the original author of hackbench.c and he said the code is and was under the GPLv2 so fine to be merged. ) Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: fweisbec@gmail.com Cc: Jiri Kosina <jkosina@suse.cz> LKML-Reference: <1257381097-4743-3-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf bench: Add new directory and header for new subcommand 'bench'Hitoshi Mitake2009-11-08
| | | | | | | | | | | | | | | | | This patch adds bench/ directory and bench/bench.h. bench/ directory will contain modules for bench subcommand. bench/bench.h is for listing prototypes of module functions. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: fweisbec@gmail.com Cc: Jiri Kosina <jkosina@suse.cz> LKML-Reference: <1257381097-4743-2-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf symbols: Factor out buildid reading routineArnaldo Carvalho de Melo2009-11-04
| | | | | | | | | | | | So that we can run it without having a DSO instance. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1257291970-8208-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge commit 'v2.6.32-rc6' into perf/coreIngo Molnar2009-11-04
|\ | | | | | | | | | | | | | | | | | | Conflicts: tools/perf/Makefile Merge reason: Resolve the conflict, merge to upstream and merge in perf fixes so we can add a dependent patch. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * Linux 2.6.32-rc6v2.6.32-rc6Linus Torvalds2009-11-03
| |
| * Merge branch 'for-linus' of git://github.com/at91linux/linux-2.6-at91Linus Torvalds2009-11-03
| |\ | | | | | | | | | | | | | | | * 'for-linus' of git://github.com/at91linux/linux-2.6-at91: at91: at91sam9g45 family: identify several chip versions avr32: add two new at91 to cpu.h definition
| | * at91: at91sam9g45 family: identify several chip versionsNicolas Ferre2009-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cpu_is_xxx() macros are identifying generic at91sam9g45 chip. This patch adds the capacity to differentiate Engineering Samples and final lots through the inclusion of at91_cpu_fully_identify() and the related chip IDs with chip version field preserved. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
| | * avr32: add two new at91 to cpu.h definitionNicolas Ferre2009-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | Somme common drivers will need those at91 cpu_is_xxx() definitions. As at91sam9g10 and at91sam9g45 are on the way to linus' tree, here is the patch that adds those chips to cpu.h in AVR32 architecture. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2009-11-03
| |\ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (38 commits) MIPS: O32: Fix ppoll MIPS: Oprofile: Rename cpu_type from godson2 to loongson2 MIPS: Alchemy: Fix hang with high-frequency edge interrupts MIPS: TXx9: Fix spi-baseclk value MIPS: bcm63xx: Set the correct BCM3302 CPU name MIPS: Loongson 2: Set cpu_has_dc_aliases and cpu_icache_snoops_remote_store MIPS: Avoid potential hazard on Context register MIPS: Octeon: Use lockless interrupt controller operations when possible. MIPS: Octeon: Use write_{un,}lock_irq{restore,save} to set irq affinity MIPS: Set S-cache linesize to 64-bytes for MTI's S-cache MIPS: SMTC: Avoid queing multiple reschedule IPIs MIPS: GCMP: Avoid accessing registers when they are not present MIPS: GIC: Random fixes and enhancements. MIPS: CMP: Fix memory barriers for correct operation of amon_cpu_start MIPS: Fix abs.[sd] and neg.[sd] emulation for NaN operands MIPS: SPRAM: Clean up support code a little MIPS: 1004K: Enable SPRAM support. MIPS: Malta: Enable PCI 2.1 compatibility in PIIX4 MIPS: Kconfig: Fix duplicate default value for MIPS_L1_CACHE_SHIFT. MIPS: MTI: Fix accesses to device registers on MIPS boards ...
| | * MIPS: O32: Fix ppollArnaud Patard2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | sys_ppoll syscall needs to use a compat handler on 64bit kernels with o32 user-space. Signed-off-by: Arnaud Patard <apatard@mandriva.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Oprofile: Rename cpu_type from godson2 to loongson2Wu Zhangjin2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | * MIPS: Alchemy: Fix hang with high-frequency edge interruptsManuel Lauss2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The handle_edge_irq() flowhandler disables edge int sources which occur too fast (i.e. another edge comes in before the irq handler function had a chance to finish). Currently, the mask_ack() callback does not ack the edges in hardware, leading to an endless loop in the flowhandler where it tries to shut up the irq source. When I rewrote the alchemy IRQ code I wrongly assumed the mask_ack() callback was only used by the level flowhandler, hence it omitted the (at the time pointless) edge acks. Turned out I was wrong; so here is a complete mask_ack implementation for Alchemy IC, which fixes the above mentioned problem. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: TXx9: Fix spi-baseclk valueAtsushi Nemoto2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TXx9 SPI bit rate is calculated by: fBR = fSPI / 2 / (n + 1) (fSPI is SPI master clock freq, i.e. imbusclk freq.) So use imbus_clk / 2 as a spi-baseclk. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: bcm63xx: Set the correct BCM3302 CPU nameFlorian Fainelli2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | For consistency with other BCM63xx SoC set the CPU name to "Broadcom BCM6338" when actually running on that system. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Loongson 2: Set cpu_has_dc_aliases and cpu_icache_snoops_remote_storeZhang Le2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Loongson 2 does not have dcache aliases when is using 16k pages. and the And because Loongson 2 doesn't do SMP , cpu_icache_snoops_remote_store does not matter here. Signed-off-by: Zhang Le <r0bertz@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Avoid potential hazard on Context registerRalf Baechle2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | set_saved_sp reads Context register. Avoid reading stale value from earlier incomplete write. Issue found and fixed for head.S by Chris Dearman <chris@mips.com>. Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Octeon: Use lockless interrupt controller operations when possible.David Daney2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | Some newer Octeon chips have registers that allow lockless operation of the interrupt controller. Take advantage of them. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Octeon: Use write_{un,}lock_irq{restore,save} to set irq affinityDavid Daney2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | Since the locks are used from interrupt context we need the irqsave/irqrestore versions of the locking functions. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Set S-cache linesize to 64-bytes for MTI's S-cacheRalf Baechle2009-11-02
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: SMTC: Avoid queing multiple reschedule IPIsJaidev Patwardhan2009-11-02
| | | | | | | | | | | | | | | Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: GCMP: Avoid accessing registers when they are not presentJaidev Patwardhan2009-11-02
| | | | | | | | | | | | | | | Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: GIC: Random fixes and enhancements.Chris Dearman2009-11-02
| | | | | | | | | | | | | | | Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: CMP: Fix memory barriers for correct operation of amon_cpu_startChris Dearman2009-11-02
| | | | | | | | | | | | | | | Signed-off-by: Chris Dearman (chris@mips.com) Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Fix abs.[sd] and neg.[sd] emulation for NaN operandsNigel Stephens2009-11-02
| | | | | | | | | | | | | | | | | | | | | This patch ensures that the sign bit is always updated for NaN operands. Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: SPRAM: Clean up support code a littleChris Dearman2009-11-02
| | | | | | | | | | | | | | | Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: 1004K: Enable SPRAM support.Ralf Baechle2009-11-02
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Malta: Enable PCI 2.1 compatibility in PIIX4Ralf Baechle2009-11-02
| | | | | | | | | | | | | | | | | | Based on original patch by Chris Dearman <chris@mips.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Kconfig: Fix duplicate default value for MIPS_L1_CACHE_SHIFT.Ralf Baechle2009-11-02
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: MTI: Fix accesses to device registers on MIPS boardsChris Dearman2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the remaining problems introduced by f197465384bf7ef1af184c2ed1a4e268911a91e3 (incorrect access length & byteswapping in bigendian mode) Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: Fix machine check exception in kmap_coherent()Kevin Cernekee2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On an SMP system with cache aliases, the following sequence of events may happen: 1) copy_user_highpage() runs on CPU0, invoking kmap_coherent() to create a temporary mapping in the fixmap region 2) copy_page() starts on CPU0 3) CPU1 sends CPU0 an IPI asking CPU0 to run local_r4k_flush_cache_page() 4) CPU0 takes the interrupt, interrupting copy_page() 5) local_r4k_flush_cache_page() on CPU0 calls kmap_coherent() again 6) The second invocation of kmap_coherent() on CPU0 tries to use the same fixmap virtual address that was being used by copy_user_highpage() 7) CPU0 throws a machine check exception for the TLB address conflict Fixed by creating an extra set of fixmap entries for use in interrupt handlers. This prevents fixmap VA conflicts between copy_user_highpage() running in user context, and local_r4k_flush_cache_page() invoked from an SMP IPI. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: MTX-1: Fix build if CONFIG_PCI is disabled.Ralf Baechle2009-11-02
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: AR7: register watchdog device only if enabled in hw configurationFlorian Fainelli2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch checks if the watchdog enable bit is set in the DCL register meaning that the hardware watchdog actually works and if so, register the ar7_wdt platform_device. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: BCM63xx: Prepare for watchdog supportFlorian Fainelli2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | This patch prepares the board code to register a bcm63xx_wdt platform_device that we are going to use in a subsequent patch. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * MIPS: BCM63xx: Make bcm63xx_uart_register an initfuncFlorian Fainelli2009-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the calls to bcm63xx_uart_register in board_bcm963xx.c and make bcm63xx_uart_register an initfunc. Allows us to remove bcm63xx_dev_uart.h which was there to make checkpatch.pl happy. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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