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* metag: Replace __get_cpu_var uses for address calculationChristoph Lameter2014-08-261-7/+7
| | | | | | | | Replace __get_cpu_var uses for address calculation with this_cpu_ptr(). Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* Merge tag 'metag-for-v3.17' of ↵Linus Torvalds2014-08-141-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag Pull metag architecture updates from James Hogan: "Just a couple of minor static analysis fixes, removal of a NULL check that should never happen, and fix an error check where an unsigned value was being checked to see if it was negative" * tag 'metag-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: metag: cachepart: Fix failure check metag: hugetlbpage: Remove null pointer checks that could never happen
| * metag: cachepart: Fix failure checkAndrey Utkin2014-07-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [linux-3.16-rc5/arch/metag/kernel/cachepart.c:102]: (style) Checking if unsigned variable 'thread_cache_size' is less than zero. Source code is if (thread_cache_size < 0) pr_emerg("Can't read %s cache size\n", cache_type ? "DCACHE" : "ICACHE"); but unsigned int thread_cache_size; Function get_thread_cache_size returns an error code as (unsigned int) -1. Change get_thread_cache_size() to return signed int, and its result is stored into signed int variable. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80361 Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com> Signed-off-by: James Hogan <james.hogan@imgtec.com>
* | Merge branch 'signal-cleanup' of ↵Linus Torvalds2014-08-091-7/+3Star
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc Pull arch signal handling cleanup from Richard Weinberger: "This patch series moves all remaining archs to the get_signal(), signal_setup_done() and sigsp() functions. Currently these archs use open coded variants of the said functions. Further, unused parameters get removed from get_signal_to_deliver(), tracehook_signal_handler() and signal_delivered(). At the end of the day we save around 500 lines of code." * 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits) powerpc: Use sigsp() openrisc: Use sigsp() mn10300: Use sigsp() mips: Use sigsp() microblaze: Use sigsp() metag: Use sigsp() m68k: Use sigsp() m32r: Use sigsp() hexagon: Use sigsp() frv: Use sigsp() cris: Use sigsp() c6x: Use sigsp() blackfin: Use sigsp() avr32: Use sigsp() arm64: Use sigsp() arc: Use sigsp() sas_ss_flags: Remove nested ternary if Rip out get_signal_to_deliver() Clean up signal_delivered() tracehook_signal_handler: Remove sig, info, ka and regs ...
| * | metag: Use sigsp()Richard Weinberger2014-08-061-7/+3Star
| |/ | | | | | | | | | | | | Use sigsp() instead of the open coded variant. Signed-off-by: Richard Weinberger <richard@nod.at> Acked-by: James Hogan <james.hogan@imgtec.com>
* | Merge branch 'perf-core-for-linus' of ↵Linus Torvalds2014-08-051-10/+9Star
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf changes from Ingo Molnar: "Kernel side changes: - Consolidate the PMU interrupt-disabled code amongst architectures (Vince Weaver) - misc fixes Tooling changes (new features, user visible changes): - Add support for pagefault tracing in 'trace', please see multiple examples in the changeset messages (Stanislav Fomichev). - Add pagefault statistics in 'trace' (Stanislav Fomichev) - Add header for columns in 'top' and 'report' TUI browsers (Jiri Olsa) - Add pagefault statistics in 'trace' (Stanislav Fomichev) - Add IO mode into timechart command (Stanislav Fomichev) - Fallback to syscalls:* when raw_syscalls:* is not available in the perl and python perf scripts. (Daniel Bristot de Oliveira) - Add --repeat global option to 'perf bench' to be used in benchmarks such as the existing 'futex' one, that was modified to use it instead of a local option. (Davidlohr Bueso) - Fix fd -> pathname resolution in 'trace', be it using /proc or a vfs_getname probe point. (Arnaldo Carvalho de Melo) - Add suggestion of how to set perf_event_paranoid sysctl, to help non-root users trying tools like 'trace' to get a working environment. (Arnaldo Carvalho de Melo) - Updates from trace-cmd for traceevent plugin_kvm plus args cleanup (Steven Rostedt, Jan Kiszka) - Support S/390 in 'perf kvm stat' (Alexander Yarygin) Tooling infrastructure changes: - Allow reserving a row for header purposes in the hists browser (Arnaldo Carvalho de Melo) - Various fixes and prep work related to supporting Intel PT (Adrian Hunter) - Introduce multiple debug variables control (Jiri Olsa) - Add callchain and additional sample information for python scripts (Joseph Schuchart) - More prep work to support Intel PT: (Adrian Hunter) - Polishing 'script' BTS output - 'inject' can specify --kallsym - VDSO is per machine, not a global var - Expose data addr lookup functions previously private to 'script' - Large mmap fixes in events processing - Include standard stringify macros in power pc code (Sukadev Bhattiprolu) Tooling cleanups: - Convert open coded equivalents to asprintf() (Andy Shevchenko) - Remove needless reassignments in 'trace' (Arnaldo Carvalho de Melo) - Cache the is_exit syscall test in 'trace) (Arnaldo Carvalho de Melo) - No need to reimplement err() in 'perf bench sched-messaging', drop barf(). (Davidlohr Bueso). - Remove ev_name argument from perf_evsel__hists_browse, can be obtained from the other parameters. (Jiri Olsa) Tooling fixes: - Fix memory leak in the 'sched-messaging' perf bench test. (Davidlohr Bueso) - The -o and -n 'perf bench mem' options are mutually exclusive, emit error when both are specified. (Davidlohr Bueso) - Fix scrollbar refresh row index in the ui browser, problem exposed now that headers will be added and will be allowed to be switched on/off. (Jiri Olsa) - Handle the num array type in python properly (Sebastian Andrzej Siewior) - Fix wrong condition for allocation failure (Jiri Olsa) - Adjust callchain based on DWARF debug info on powerpc (Sukadev Bhattiprolu) - Fix a risk for doing free on uninitialized pointer in traceevent lib (Rickard Strandqvist) - Update attr test with PERF_FLAG_FD_CLOEXEC flag (Jiri Olsa) - Enable close-on-exec flag on perf file descriptor (Yann Droneaud) - Fix build on gcc 4.4.7 (Arnaldo Carvalho de Melo) - Event ordering fixes (Jiri Olsa)" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (123 commits) Revert "perf tools: Fix jump label always changing during tracing" perf tools: Fix perf usage string leftover perf: Check permission only for parent tracepoint event perf record: Store PERF_RECORD_FINISHED_ROUND only for nonempty rounds perf record: Always force PERF_RECORD_FINISHED_ROUND event perf inject: Add --kallsyms parameter perf tools: Expose 'addr' functions so they can be reused perf session: Fix accounting of ordered samples queue perf powerpc: Include util/util.h and remove stringify macros perf tools: Fix build on gcc 4.4.7 perf tools: Add thread parameter to vdso__dso_findnew() perf tools: Add dso__type() perf tools: Separate the VDSO map name from the VDSO dso name perf tools: Add vdso__new() perf machine: Fix the lifetime of the VDSO temporary file perf tools: Group VDSO global variables into a structure perf session: Add ability to skip 4GiB or more perf session: Add ability to 'skip' a non-piped event stream perf tools: Pass machine to vdso__dso_findnew() perf tools: Add dso__data_size() ...
| * | metag, perf: Use common PMU interrupt disabled codeVince Weaver2014-06-181-10/+9Star
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | Transition to using the new generic PERF_PMU_CAP_NO_INTERRUPT method for failing a sampling event when no PMU interrupt is available. Signed-off-by: Vince Weaver <vincent.weaver@maine.edu> Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: linux-metag@vger.kernel.org Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1406150202050.16738@vincent-weaver-1.umelst.maine.edu Signed-off-by: Ingo Molnar <mingo@kernel.org>
* / metag: ftrace: Remove check of obsolete variable function_trace_stopSteven Rostedt (Red Hat)2014-07-181-14/+0Star
|/ | | | | | | | Nothing sets function_trace_stop to disable function tracing anymore. Remove the check for it in the arch code. Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* of/fdt: consolidate built-in dtb section variablesRob Herring2014-04-301-4/+0Star
| | | | | | | | | | | | | | | | | | | | Unify the various architectures __dtb_start and __dtb_end definitions moving them into of_fdt.h. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: James Hogan <james.hogan@imgtec.com> Tested-by: Michal Simek <michal.simek@xilinx.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: linux-metag@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux@lists.openrisc.net Cc: linux-xtensa@linux-xtensa.org Tested-by: Grant Likely <grant.likely@linaro.org> Tested-by: Stephen Chivers <schivers@csc.com>
* Merge tag 'trace-3.15' of ↵Linus Torvalds2014-04-031-4/+1Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "Most of the changes were largely clean ups, and some documentation. But there were a few features that were added: Uprobes now work with event triggers and multi buffers and have support under ftrace and perf. The big feature is that the function tracer can now be used within the multi buffer instances. That is, you can now trace some functions in one buffer, others in another buffer, all functions in a third buffer and so on. They are basically agnostic from each other. This only works for the function tracer and not for the function graph trace, although you can have the function graph tracer running in the top level buffer (or any tracer for that matter) and have different function tracing going on in the sub buffers" * tag 'trace-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (45 commits) tracing: Add BUG_ON when stack end location is over written tracepoint: Remove unused API functions Revert "tracing: Move event storage for array from macro to standalone function" ftrace: Constify ftrace_text_reserved tracepoints: API doc update to tracepoint_probe_register() return value tracepoints: API doc update to data argument ftrace: Fix compilation warning about control_ops_free ftrace/x86: BUG when ftrace recovery fails ftrace: Warn on error when modifying ftrace function ftrace: Remove freelist from struct dyn_ftrace ftrace: Do not pass data to ftrace_dyn_arch_init ftrace: Pass retval through return in ftrace_dyn_arch_init() ftrace: Inline the code from ftrace_dyn_table_alloc() ftrace: Cleanup of global variables ftrace_new_pgs and ftrace_update_cnt tracing: Evaluate len expression only once in __dynamic_array macro tracing: Correctly expand len expressions from __dynamic_array macro tracing/module: Replace include of tracepoint.h with jump_label.h in module.h tracing: Fix event header migrate.h to include tracepoint.h tracing: Fix event header writeback.h to include tracepoint.h tracing: Warn if a tracepoint is not set via debugfs ...
| * ftrace: Do not pass data to ftrace_dyn_arch_initJiri Slaby2014-03-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As the data parameter is not really used by any ftrace_dyn_arch_init, remove that from ftrace_dyn_arch_init. This also removes the addr local variable from ftrace_init which is now unused. Note the documentation was imprecise as it did not suggest to set (*data) to 0. Link: http://lkml.kernel.org/r/1393268401-24379-4-git-send-email-jslaby@suse.cz Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * ftrace: Pass retval through return in ftrace_dyn_arch_init()Jiri Slaby2014-03-071-3/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No architecture uses the "data" parameter in ftrace_dyn_arch_init() in any way, it just sets the value to 0. And this is used as a return value in the caller -- ftrace_init, which just checks the retval against zero. Note there is also "return 0" in every ftrace_dyn_arch_init. So it is enough to check the retval and remove all the indirect sets of data on all archs. Link: http://lkml.kernel.org/r/1393268401-24379-3-git-send-email-jslaby@suse.cz Cc: linux-arch@vger.kernel.org Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* | metag: Use get_signal() signal_setup_done()Richard Weinberger2014-03-181-27/+21Star
| | | | | | | | | | | | | | | | | | | | Use the more generic functions get_signal() signal_setup_done() for signal delivery. [James Hogan: avoid reordering get_signal() and restart check.] Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: James Hogan <james.hogan@imgtec.com>
* | metag: Use irq_set_affinity instead of homebrewn codeThomas Gleixner2014-03-171-19/+3Star
|/ | | | | | | | | | | | | There is no point in having an incomplete copy of irq_set_affinity() for the hotplug irq migration code. Use the core function instead and while at it switch to for_each_active_irq() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: James Hogan <james.hogan@imgtec.com> Cc: metag <linux-metag@vger.kernel.org> Signed-off-by: James Hogan <james.hogan@imgtec.com>
* metag/smp: Make boot_secondary() staticGeert Uytterhoeven2014-01-061-1/+1
| | | | | | | | boot_secondary() is not used outside arch/metag/kernel/smp.c, hence make it static. Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org> Signed-off-by: James Hogan <james.hogan@imgtec.com>
* metag: topology: export 'cpu_core_map'Chen Gang2013-12-191-0/+1
| | | | | | | | | | | We need to export 'cpu_core_map' since the topology_core_cpumask macro refers to it and is used by certain kernel modules. Found in allmodconfig build: ERROR: "cpu_core_map" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined! Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: James Hogan <james.hogan@imgtec.com>
* smp, metag: kill SMP single function call interruptJiang Liu2013-12-051-5/+1Star
| | | | | | | | | | | | | | | | | Commit 9a46ad6d6df3 "smp: make smp_call_function_many() use logic similar to smp_call_function_single()" has unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Signed-off-by: Jiang Liu <liuj97@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Shaohua Li <shli@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jiri Kosina <trivial@kernel.org> Signed-off-by: James Hogan <james.hogan@imgtec.com>
* metag: smp: don't set irq regs in do_IPI()James Hogan2013-11-291-5/+2Star
| | | | | | | | | | | | Since commit f6b30d32d242 (metag: kick: add missing irq_enter/exit to kick_handler()), the main kick_handler() function deals with setting and restoring the irq registers pointer. Therefore do_IPI() which is called indirectly from kick_handler() doesn't need to do that itself any longer. Therefore remove that code and do_IPI()'s pt_regs argument. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-metag@vger.kernel.org Cc: Thomas Gleixner <tglx@linutronix.de>
* metag: dma: remove dead code in dma_alloc_init()James Hogan2013-11-251-5/+0Star
| | | | | | | | | | | | Meta has 2 levels of page table so the pmd folds into the pud which folds into the pgd. Therefore the !pmd check in dma_alloc_init() is dead code since it essentially checks whether: (init_mm->pgd + 0x770) == 0 Remove the check. Reported-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: James Hogan <james.hogan@imgtec.com>
* mm/arch: use __free_reserved_page() to simplify the codeXishi Qiu2013-11-131-3/+1Star
| | | | | | | | | | | | | | | | | | | | Use __free_reserved_page() to simplify the code in arch. It used split_page() in consistent_alloc()/__dma_alloc_coherent()/dma_alloc_coherent(), so page->_count == 1, and we can free it safely. __free_reserved_page() ClearPageReserved() init_page_count() // it won't change the value __free_page() Signed-off-by: Xishi Qiu <qiuxishi@huawei.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'devicetree-for-3.13' of ↵Linus Torvalds2013-11-122-68/+22Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree updates from Rob Herring: "DeviceTree updates for 3.13. This is a bit larger pull request than usual for this cycle with lots of clean-up. - Cross arch clean-up and consolidation of early DT scanning code. - Clean-up and removal of arch prom.h headers. Makes arch specific prom.h optional on all but Sparc. - Addition of interrupts-extended property for devices connected to multiple interrupt controllers. - Refactoring of DT interrupt parsing code in preparation for deferred probe of interrupts. - ARM cpu and cpu topology bindings documentation. - Various DT vendor binding documentation updates" * tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits) powerpc: add missing explicit OF includes for ppc dt/irq: add empty of_irq_count for !OF_IRQ dt: disable self-tests for !OF_IRQ of: irq: Fix interrupt-map entry matching MIPS: Netlogic: replace early_init_devtree() call of: Add Panasonic Corporation vendor prefix of: Add Chunghwa Picture Tubes Ltd. vendor prefix of: Add AU Optronics Corporation vendor prefix of/irq: Fix potential buffer overflow of/irq: Fix bug in interrupt parsing refactor. of: set dma_mask to point to coherent_dma_mask of: add vendor prefix for PHYTEC Messtechnik GmbH DT: sort vendor-prefixes.txt of: Add vendor prefix for Cadence of: Add empty for_each_available_child_of_node() macro definition arm/versatile: Fix versatile irq specifications. of/irq: create interrupts-extended property microblaze/pci: Drop PowerPC-ism from irq parsing of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code. of/irq: Use irq_of_parse_and_map() ...
| * metag: move setup_machine_fdt declaration from prom.hRob Herring2013-10-101-1/+0Star
| | | | | | | | | | | | | | | | | | | | Move setup_machine_fdt out of prom.h and into asm/setup.h in preparation to remove prom.h. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@linaro.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: linux-metag@vger.kernel.org
| * metag: use common of_flat_dt_match_machineRob Herring2013-10-102-42/+20Star
| | | | | | | | | | | | | | | | | | Convert metag to use the common of_flat_dt_get_machine_name function. Signed-off-by: Rob Herring <rob.herring@calxeda.com> [james.hogan: fix missing arch_get_next_mach and const mismatch] Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: James Hogan <james.hogan@imgtec.com>
| * metag: use early_init_dt_scanRob Herring2013-10-091-6/+1Star
| | | | | | | | | | | | | | Convert metag to use new early_init_dt_scan function. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: James Hogan <james.hogan@imgtec.com>
| * metag: use unflatten_and_copy_device_treeRob Herring2013-10-092-19/+1Star
| | | | | | | | | | | | | | | | Use the common unflatten_and_copy_device_tree to copy the built-in FDT out of init section. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: James Hogan <james.hogan@imgtec.com>
* | Merge tag 'metag-for-v3.13' of ↵Linus Torvalds2013-11-122-8/+3Star
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag Pull metag architecture changes from James Hogan: - A change to remove the last dependence on bootloader exception handlers so that QEMU can more easily boot an SMP Linux/Meta kernel image directly. - A fix for a minor off by one error in a BUG_ON condition found by Dan Carpenter. * tag 'metag-for-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: metag: off by one in setup_bootmem_node() metag: handle low level kicks directly
| * | metag: handle low level kicks directlyJames Hogan2013-11-062-8/+3Star
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kick interrupts trigger the LWK (low level kick) signal, usually handled by the __TBIDoStdLWK() function which is the only handler inherited from the bootloader. The LWK signal is converted either to a SWK (plain software kick) or a SWS (software kick with an attached message). Linux has kick_handler() to handle SWK and call registered kick handlers (IPIs and inter-thread comms), but SWS is as far as I'm aware unused with Linux. Therefore remove that abstraction and have Linux handle LWK directly. This will reduce kick latency slightly, and reduce our dependence on the bootloader, which makes it easier to directly boot a kernel in QEMU (particularly for SMP). Signed-off-by: James Hogan <james.hogan@imgtec.com>
* / irq: Consolidate do_softirq() arch overriden implementationsFrederic Weisbecker2013-10-011-33/+19Star
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | All arch overriden implementations of do_softirq() share the following common code: disable irqs (to avoid races with the pending check), check if there are softirqs pending, then execute __do_softirq() on a specific stack. Consolidate the common parts such that archs only worry about the stack switch. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@au1.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul Mackerras <paulus@au1.ibm.com> Cc: James Hogan <james.hogan@imgtec.com> 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: David S. Miller <davem@davemloft.net> Cc: Andrew Morton <akpm@linux-foundation.org>
* metag: delete __cpuinit usage from all metag filesPaul Gortmaker2013-07-153-16/+14Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) are flagged as __cpuinit -- so if we remove the __cpuinit from arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. This removes all the arch/metag uses of the __cpuinit macros from all C files. Currently metag does not have any __CPUINIT used in assembly files. [1] https://lkml.org/lkml/2013/5/20/589 Cc: James Hogan <james.hogan@imgtec.com> Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* Merge tag 'metag-for-v3.11' of ↵Linus Torvalds2013-07-069-45/+118
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag Pull Metag architecture changes from James Hogan: - Infrastructure and DT files for TZ1090 SoC (pin control drivers already merged via pinctrl tree). - Panic on boot instead of just warning if cache aliasing possible. - Various SMP/hotplug fixes. - Various other randconfig/sparse fixes. * tag 'metag-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: (24 commits) metag: move EXPORT_SYMBOL(csum_partial) to metag_ksyms.c metag: cpu hotplug: route_irq: preserve irq mask metag: kick: add missing irq_enter/exit to kick_handler() metag: smp: don't spin waiting for CPU to start metag: smp: enable irqs after set_cpu_online metag: use clear_tasks_mm_cpumask() metag: tz1090: select and instantiate pinctrl-tz1090-pdc metag: tz1090: select and instantiate pinctrl-tz1090 metag: don't check for cache aliasing on smp cpu boot metag: panic if cache aliasing possible metag: *.dts: include using preprocessor metag: add <dt-bindings/> symlink metag/.gitignore: Extend the *.dtb pattern to match the dtb.S files metag/traps: include setup.h for the per_cpu_trap_init declaration metag/traps: Mark die() as __noreturn to match the declaration. metag/processor.h: Add missing cpuinfo_op declaration. metag/setup: Restrict scope for the capabilities variable metag/mm/cache: Restrict scope for metag_lnkget_probe metag/asm/irq.h: Declare init_IRQ metag/kernel/irq.c: Declare root_domain as static ...
| * metag: move EXPORT_SYMBOL(csum_partial) to metag_ksyms.cJames Hogan2013-07-041-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | Move EXPORT_SYMBOL(csum_partial) from lib/checksum.c into metag_ksyms.c so that it doesn't get omitted by the static linker if it's not used by any other statically linked code, which can result in undefined symbols when building modules. For example a randconfig caused the following error: ERROR: "csum_partial" [fs/reiserfs/reiserfs.ko] undefined! Signed-off-by: James Hogan <james.hogan@imgtec.com>
| * metag: cpu hotplug: route_irq: preserve irq maskJames Hogan2013-07-021-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The route_irq() function needs to preserve the irq mask by using the _irqsave/irqrestore variants of raw spin lock functions instead of the _irq variants. This is because it is called from __cpu_disable() (via migrate_irqs()), which is called with IRQs disabled, so using the _irq variants re-enables IRQs. This appears to have been causing occasional hits of the BUG_ON(!irqs_disabled()) in __irq_work_run() during CPU hotplug soak testing: BUG: failure at kernel/irq_work.c:122/__irq_work_run()! Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
| * metag: kick: add missing irq_enter/exit to kick_handler()James Hogan2013-07-021-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kick_handler() doesn't have an irq_enter/exit pair, but it's used for handling SMP IPIs which require work to be done in softirqs, which are invoked from irq_exit() when the hard irq nest count reaches 0. The scheduler_ipi() callback in the IPI handler calls irq_enter/exit itself, but this is inside kick_handler()'s spin lock critical section, so if an invoked softirq issues an IPI the kick_handler() will be re-entered on the same CPU and will deadlock. This is easily fixed by adding the missing irq_enter/exit to kick_handler() so that the hard irq nest count doesn't reach 0 until after the spin lock has been released. Ideally the spin lock protected handler list will also be replaced by a lockless RCU protected list since it is certainly mostly read. That can be done in a later change though. Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Thomas Gleixner <tglx@linutronix.de>
| * metag: smp: don't spin waiting for CPU to startJames Hogan2013-07-021-10/+6Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use a completion to block until a secondary CPU has started up, like ARM do, instead of a loop of udelays. On Meta, SMP is really SMT, with each "CPU" being a different hardware thread on the same Meta processor core, so as well as being more efficient and latency friendly, using a completion prevents the bogomips of the secondary CPU from being drastically skewed every time by the execution of the tight in-cache udelay loop on the other CPU. Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
| * metag: smp: enable irqs after set_cpu_onlineJames Hogan2013-07-021-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In secondary_start_kernel() interrupts should be enabled with local_irq_enable() after the cpu is marked as online with set_cpu_online(). Otherwise it's possible for a timer interrupt to trigger a softirq, which if the cpu is marked as offline may have it's affinity altered. Reported-by: Kirill Tkhai <tkhai@yandex.ru> Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> Cc: Kirill Tkhai <tkhai@yandex.ru>
| * metag: use clear_tasks_mm_cpumask()James Hogan2013-07-021-7/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Checking for process->mm is not enough because process' main thread may exit or detach its mm via use_mm(), but other threads may still have a valid mm. To fix this we would need to use find_lock_task_mm(), which would walk up all threads and returns an appropriate task (with task lock held). clear_tasks_mm_cpumask() was introduced in v3.5-rc1 to fix this issue, so let's use it for metag too. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Anton Vorontsov <anton.vorontsov@linaro.org>
| * metag: don't check for cache aliasing on smp cpu bootJames Hogan2013-06-271-6/+0Star
| | | | | | | | | | | | | | | | | | The cache configuration of the boot cpu is now duplicated to secondary cpus, so there's no need to check for cache aliasing again when a secondary cpu is booted. Therefore remove the check from secondary_start_kernel(). Signed-off-by: James Hogan <james.hogan@imgtec.com>
| * metag: panic if cache aliasing possibleJames Hogan2013-06-271-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | If the cache and page size configuration allows for cache aliasing to occur we warn on boot, but the log messages are easy to miss and will result is random crashes occuring in userland. Let's panic too in this case so that the user immediately knows they need to fix the cache configuration or configured page size. Also fix the warning messages which display the cache and page sizes to include newlines, and add the word "Potential" since an actual cache alias hasn't been detected. Signed-off-by: James Hogan <james.hogan@imgtec.com>
| * metag/traps: include setup.h for the per_cpu_trap_init declarationMarkos Chandras2013-06-131-0/+1
| | | | | | | | | | Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: James Hogan <james.hogan@imgtec.com>
| * metag/traps: Mark die() as __noreturn to match the declaration.Markos Chandras2013-06-131-2/+2
| | | | | | | | | | Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: James Hogan <james.hogan@imgtec.com>
| * metag/setup: Restrict scope for the capabilities variableMarkos Chandras2013-06-131-6/+6
| | | | | | | | | | Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: James Hogan <james.hogan@imgtec.com>
| * metag/kernel/irq.c: Declare root_domain as staticMarkos Chandras2013-06-131-1/+1
| | | | | | | | | | | | | | | | It is only referenced within the irq.c file, so restrict it's scope as appropriate. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: James Hogan <james.hogan@imgtec.com>
| * metag: log core and timer frequencies from arch codeJames Hogan2013-06-131-0/+2
| | | | | | | | | | | | | | | | | | | | Log core clock and Meta timer frequencies during init in architecture generic code, removing the need for equivalent log messages in SoC specific code. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de>
| * metag: init common clk and use "core" clkJames Hogan2013-06-132-3/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the common clock framework is enabled, call of_clk_init(NULL) in time_init() to register device tree clocks with the clock framework. After this time_init() calls a new function init_metag_clocks(), which looks for a clock named "core" in the node compatible with "img,meta" (usually the root node). If found the get_core_freq machine callback is overridden to obtain the core clock frequency using that clock. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <rob.herring@calxeda.com> Cc: devicetree-discuss@lists.ozlabs.org
| * metag: of_platform_populate from arch generic codeJames Hogan2013-06-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | If no init_machine callback is provided, call of_platform_populate() instead. This allows a board/SoC that only needs to call of_platform_populate to omit the callback altogether. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: devicetree-discuss@lists.ozlabs.org
* | perf: Add const qualifier to perf_pmu_register's 'name' argMischa Jonker2013-06-191-1/+1
|/ | | | | | | | | | This allows us to use pdev->name for registering a PMU device. IMO the name is not supposed to be changed anyway. Signed-off-by: Mischa Jonker <mjonker@synopsys.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1370339148-5566-1-git-send-email-mjonker@synopsys.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* dump_stack: unify debug information printed by show_regs()Tejun Heo2013-05-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | show_regs() is inherently arch-dependent but it does make sense to print generic debug information and some archs already do albeit in slightly different forms. This patch introduces a generic function to print debug information from show_regs() so that different archs print out the same information and it's much easier to modify what's printed. show_regs_print_info() prints out the same debug info as dump_stack() does plus task and thread_info pointers. * Archs which didn't print debug info now do. alpha, arc, blackfin, c6x, cris, frv, h8300, hexagon, ia64, m32r, metag, microblaze, mn10300, openrisc, parisc, score, sh64, sparc, um, xtensa * Already prints debug info. Replaced with show_regs_print_info(). The printed information is superset of what used to be there. arm, arm64, avr32, mips, powerpc, sh32, tile, unicore32, x86 * s390 is special in that it used to print arch-specific information along with generic debug info. Heiko and Martin think that the arch-specific extra isn't worth keeping s390 specfic implementation. Converted to use the generic version. Note that now all archs print the debug info before actual register dumps. An example BUG() dump follows. kernel BUG at /work/os/work/kernel/workqueue.c:4841! invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.9.0-rc1-work+ #7 Hardware name: empty empty/S3992, BIOS 080011 10/26/2007 task: ffff88007c85e040 ti: ffff88007c860000 task.ti: ffff88007c860000 RIP: 0010:[<ffffffff8234a07e>] [<ffffffff8234a07e>] init_workqueues+0x4/0x6 RSP: 0000:ffff88007c861ec8 EFLAGS: 00010246 RAX: ffff88007c861fd8 RBX: ffffffff824466a8 RCX: 0000000000000001 RDX: 0000000000000046 RSI: 0000000000000001 RDI: ffffffff8234a07a RBP: ffff88007c861ec8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8234a07a R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88007dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffff88015f7ff000 CR3: 00000000021f1000 CR4: 00000000000007f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Stack: ffff88007c861ef8 ffffffff81000312 ffffffff824466a8 ffff88007c85e650 0000000000000003 0000000000000000 ffff88007c861f38 ffffffff82335e5d ffff88007c862080 ffffffff8223d8c0 ffff88007c862080 ffffffff81c47760 Call Trace: [<ffffffff81000312>] do_one_initcall+0x122/0x170 [<ffffffff82335e5d>] kernel_init_freeable+0x9b/0x1c8 [<ffffffff81c47760>] ? rest_init+0x140/0x140 [<ffffffff81c4776e>] kernel_init+0xe/0xf0 [<ffffffff81c6be9c>] ret_from_fork+0x7c/0xb0 [<ffffffff81c47760>] ? rest_init+0x140/0x140 ... v2: Typo fix in x86-32. v3: CPU number dropped from show_regs_print_info() as dump_stack_print_info() has been updated to print it. s390 specific implementation dropped as requested by s390 maintainers. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Chris Metcalf <cmetcalf@tilera.com> [tile bits] Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon bits] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dump_stack: consolidate dump_stack() implementations and unify their behaviorsTejun Heo2013-05-011-6/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both dump_stack() and show_stack() are currently implemented by each architecture. show_stack(NULL, NULL) dumps the backtrace for the current task as does dump_stack(). On some archs, dump_stack() prints extra information - pid, utsname and so on - in addition to the backtrace while the two are identical on other archs. The usages in arch-independent code of the two functions indicate show_stack(NULL, NULL) should print out bare backtrace while dump_stack() is used for debugging purposes when something went wrong, so it does make sense to print additional information on the task which triggered dump_stack(). There's no reason to require archs to implement two separate but mostly identical functions. It leads to unnecessary subtle information. This patch expands the dummy fallback dump_stack() implementation in lib/dump_stack.c such that it prints out debug information (taken from x86) and invokes show_stack(NULL, NULL) and drops arch-specific dump_stack() implementations in all archs except blackfin. Blackfin's dump_stack() does something wonky that I don't understand. Debug information can be printed separately by calling dump_stack_print_info() so that arch-specific dump_stack() implementation can still emit the same debug information. This is used in blackfin. This patch brings the following behavior changes. * On some archs, an extra level in backtrace for show_stack() could be printed. This is because the top frame was determined in dump_stack() on those archs while generic dump_stack() can't do that reliably. It can be compensated by inlining dump_stack() but not sure whether that'd be necessary. * Most archs didn't use to print debug info on dump_stack(). They do now. An example WARN dump follows. WARNING: at kernel/workqueue.c:4841 init_workqueues+0x35/0x505() Hardware name: empty Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.9.0-rc1-work+ #9 0000000000000009 ffff88007c861e08 ffffffff81c614dc ffff88007c861e48 ffffffff8108f50f ffffffff82228240 0000000000000040 ffffffff8234a03c 0000000000000000 0000000000000000 0000000000000000 ffff88007c861e58 Call Trace: [<ffffffff81c614dc>] dump_stack+0x19/0x1b [<ffffffff8108f50f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff8108f56a>] warn_slowpath_null+0x1a/0x20 [<ffffffff8234a071>] init_workqueues+0x35/0x505 ... v2: CPU number added to the generic debug info as requested by s390 folks and dropped the s390 specific dump_stack(). This loses %ksp from the debug message which the maintainers think isn't important enough to keep the s390-specific dump_stack() implementation. dump_stack_print_info() is moved to kernel/printk.c from lib/dump_stack.c. Because linkage is per objecct file, dump_stack_print_info() living in the same lib file as generic dump_stack() means that archs which implement custom dump_stack() - at this point, only blackfin - can't use dump_stack_print_info() as that will bring in the generic version of dump_stack() too. v1 The v1 patch broke build on blackfin due to this issue. The build breakage was reported by Fengguang Wu. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390 bits] Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon bits] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'metag-for-v3.10-rc1' of ↵Linus Torvalds2013-04-307-28/+222
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag Pull arch/metag update from James Hogan: - Various fixes for the interrupting perf counter handling in metag's perf backend. - Add OProfile support based on perf. - Sets up cache partitions for SMP so bootloader doesn't have to. - Patch from Paul Bolle to remove ARCH_POPULATES_NODE_MAP again (touches microblaze too). - Add TLS pointer regset to metag ptrace api. - Add exported metag DSP extended context handling header <asm/ech.h>. - Increase defconfig log buffer size to 128KiB. - Various fixes, typos, missing exports. * tag 'metag-for-v3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: metag: defconfigs: increase log buffer 8KiB => 128KiB metag: avoid unnecessary builtin dtb rebuilds metag: add exported <asm/ech.h> for extended context handling metag: export _metag_da_present and cpu_2_hwthread_id metag: ptrace: Implement NT_METAG_TLS memblock: Kill ARCH_POPULATES_NODE_MAP once more metag: cachepart: fix get_global_dcache_size() typo metag: cachepart: take into account small cache bits metag: smp: copy cache partition and enable GCOn metag: OProfile support metag: perf: prepare for use by oprofile metag: perf: don't reset TXTACTCYC metag: perf: use hard_processor_id() to get thread metag: perf: fix frequency sampling (dynamic period) metag: perf: add missing prev_count updates metag: perf: fixes for interrupting perf counters metag: perf: fix wrap handling in delta calculation metag: perf: fix core internal / perf channel mux
| * metag: export _metag_da_present and cpu_2_hwthread_idJames Hogan2013-03-272-0/+3
| | | | | | | | | | | | | | Export the symbols _metag_da_present and cpu_2_hwthread_id to modules (GPL only) to allow the imgdafs file system to be built as a module. Signed-off-by: James Hogan <james.hogan@imgtec.com>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-10 23:49:25 +0200