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* bugfixes for sched_mcpandaboard-litmus-mcChristopher Kenna2012-10-22
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* Bugfixed for ARM systems.Christopher Kenna2012-10-22
| | | | Compile with CONFIG_NP_SECTION=y
* Merge remote-tracking branch 'litmus-rt/wip-mc' into pandaboard-litmus-mcChristopher Kenna2012-10-22
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| * Bug dump dumps to console.Jonathan Herman2012-10-22
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* | Merge remote-tracking branch 'litmus-rt/wip-mc' into pandaboard-litmus-mcChristopher Kenna2012-10-19
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| * Fixed bug when release timers don't behave.Jonathan Herman2012-10-19
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* | Merge remote-tracking branch 'litmus-rt/wip-mc' into pandaboard-litmus-mcChristopher Kenna2012-10-19
|\| | | | | | | | | | | Conflicts: include/litmus/color.h litmus/Makefile
| * hacks to get the kernel to run on the odroidxChristopher Kenna2012-10-19
| | | | | | | | Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * Disabled release master work.Jonathan Herman2012-10-19
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| * Queue bug fixesJonathan Herman2012-10-19
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| * Try and debug the queue.Christopher Kenna2012-10-19
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| * Merge remote-tracking branch 'litmus-rt/wip-mc' into litmus-rt-wip-mcChristopher Kenna2012-10-19
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| | * Fixed another job completion bug.Jonathan Herman2012-10-19
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| * | Everything is hooked up. This is not tested.Christopher Kenna2012-10-18
| | | | | | | | | | | | Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * | Add debugging to Color Queue and fix a bug in color_info_free.Christopher Kenna2012-10-18
| | | | | | | | | | | | Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * | Turn color_ctrl_page into a system call.Christopher Kenna2012-10-18
| |/ | | | | | | | | | | | | | | Conflicts: include/litmus/color.h Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * Fixed bug with job completions.Jonathan Herman2012-10-18
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| * Fix minor spelling error.Christopher Kenna2012-10-18
| | | | | | | | Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * A queue for reading in pages.Christopher Kenna2012-10-18
| | | | | | | | | | | | This is not tested and probably won't work. Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * Move server.h include inside of the __KERNEL__ ifdef.Christopher Kenna2012-10-18
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| * Added way tracker.Jonathan Herman2012-10-18
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| * Rewrote dgl for preemptive cache scheduling.Jonathan Herman2012-10-18
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| * ARM: 7447/1: rwlocks: remove unused branch labels from trylock routinesWill Deacon2012-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | The ARM arch_{read,write}_trylock implementations include unused backwards branch labels, since we don't retry the locking operation if the exclusive store fails. This patch removes the labels. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * ARM: 7446/1: spinlock: use ticket algorithm for ARMv6+ locking implementationWill Deacon2012-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ticket spinlocks ensure locking fairness by introducing a FIFO-like nature to the granting of lock acquisitions and also reducing the thundering herd effect when spinning on a lock by allowing the cacheline to remain in a shared state amongst the waiting CPUs. This is especially important on systems where memory-access times are not necessarily uniform when accessing the lock structure (for example, on a multi-cluster platform where the lock is allocated into L1 when a CPU releases it). This patch implements the ticket spinlock algorithm for ARM, replacing the simpler implementation for ARMv6+ processors. Reviewed-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * Changes to ARM lockdown and LITMUS cycle counting code.Christopher Kenna2012-10-17
| | | | | | | | | | | | | | | | | | | | Try and fix the cycle counter on ARMv7 CPUs (unsuccessful). Use the multi-core timer on the ODROID-X to count cycles. Add lockdown register access to proc. Add proc options to disable prefetching for L1/L2 cache. Add test to lockdown.c to print the time to read in various WSSs. Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * Fixed sched_trace records for state transitions.Jonathan Herman2012-10-15
| | | | | | | | This commit is dirty and will be cleaned up when blocking states are tested.
| * Switched to common server model for tasks and crit entries.Jonathan Herman2012-10-15
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* | Merge remote-tracking branch 'litmus-rt/wip-mc' into pandaboard-litmus-mcChristopher Kenna2012-10-12
|\| | | | | | | | | | | | | | | | | Conflicts: arch/arm/mm/cache-l2x0.c litmus/color_proc.c litmus/lockdown.c Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * Fix lockdown (was using wrong lockdown address).Christopher Kenna2012-10-12
| | | | | | | | | | | | | | Note: Highmem pages will need to be vmapped in the kernel, or we need to not use HIGHMEM pages. Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * Ifdefed out arm code.Jonathan Herman2012-10-12
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| * DGL must be enabled for locking to occur.Jonathan Herman2012-10-12
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| * Merge remote-tracking branch 'litmus-rt/wip-mc' into reallitmusChristopher Kenna2012-10-12
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| | * DGL makes all decisions using pull_hp when preemption is enabled.Jonathan Herman2012-10-12
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| | * Make preemptive caches configurable.Jonathan Herman2012-10-12
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| * | Fix lockdown.Christopher Kenna2012-10-12
| | | | | | | | | | | | Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * | Fix cycle counters for ARM v7 CPUs.Christopher Kenna2012-10-12
| | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/arm/mach-omap2/board-omap4panda.c Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * | Basic lockdown functions like a page prefetching under lock method.Christopher Kenna2012-10-12
| |/ | | | | | | | | | | | | | | Conflicts: arch/arm/mm/cache-l2x0.c Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * Added preemptive locking.Jonathan Herman2012-10-12
| | | | | | | | Currently is always preempting. This needs to be configurable via proc.
| * Merge branch 'wip-mc' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-rt into ↵Jonathan Herman2012-10-12
| |\ | | | | | | | | | wip-mc
| * | Allow for concurrent blocking / user-space job completions.Jonathan Herman2012-10-10
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* | | Fix lockdown.Christopher Kenna2012-10-12
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* | | Fix cycle counters for ARM v7 CPUs.Christopher Kenna2012-10-12
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* | | Basic lockdown functions like a page prefetching under lock method.Christopher Kenna2012-10-12
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* | | PandaBoard: Don't lock cache ways on boot up.Christopher Kenna2012-10-11
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* | | Merge remote-tracking branch 'litmus-rt/wip-mc' into pandaboard-litmus-mcChristopher Kenna2012-10-11
|\ \ \ | | |/ | |/| | | | | | | | | | | | | This is a PandaBoard only merge. Conflicts: arch/arm/include/asm/hardware/cache-l2x0.h
| * | Fix 64-bit division in fpmath.hChristopher Kenna2012-10-11
| | | | | | | | | | | | | | | | | | | | | | | | Commit e6f51fb826ce98d436f445aae4eb9e9dba1f30e8 added some floating point support for LITMUS^RT, but it used 64-bit division that ARM does not support. Therefore, use the division functions from math64.h. Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * | Fix compilation error on ARM platforms.Christopher Kenna2012-10-11
| | | | | | | | | | | | Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * | Fix variable name in cache-l2x0.cChristopher Kenna2012-10-11
| | | | | | | | | | | | Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * | ARM: 7080/1: l2x0: make sure I&D are not locked down on initLinus Walleij2012-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fighting unfixed U-Boots and other beasts that may the cache in a locked-down state when starting the kernel, we make sure to disable all cache lock-down when initializing the l2x0 so we are in a known state. Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Rabin Vincent <rabin.vincent@stericsson.com> Cc: Adrian Bunk <adrian.bunk@movial.com> Cc: Rob Herring <robherring2@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reported-by: Jan Rinze <janrinze@gmail.com> Tested-by: Robert Marklund <robert.marklund@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
| * | uncachable color control pageChristopher Kenna2012-10-11
| | | | | | | | | | | | Signed-off-by: Christopher Kenna <cjk@cs.unc.edu>
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