linux/arch/metag/include, branch v3.10.13

metag: fix mm/hugetlb.c build breakage

2013-06-19T16:23:34Z

Commit 106c992a5ebe ("mm/hugetlb: add more arch-defined huge_pte functions") added an include of to each architecture's (except s390). Unfortunately metag was missed which resulted in build errors when hugetlbfs is enabled (see below). Add the include for metag too to fix the build errors: mm/hugetlb.c In function 'make_huge_pte': mm/hugetlb.c +2250 : error: implicit declaration of function 'huge_pte_mkwrite' mm/hugetlb.c +2250 : error: implicit declaration of function 'huge_pte_mkdirty' ... Signed-off-by: James Hogan Cc: Gerald Schaefer Cc: Andrew Morton Cc: Michal Hocko Signed-off-by: Linus Torvalds

Merge tag 'metag-for-v3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

2013-04-30T17:09:39Z

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 . - 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 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

arch: Consolidate tsk_is_polling()

2013-04-08T15:39:22Z

Move it to a common place. Preparatory patch for implementing set/clear for the idle need_resched poll implementation. Signed-off-by: Thomas Gleixner Cc: Linus Torvalds Cc: Rusty Russell Cc: Paul McKenney Cc: Peter Zijlstra Reviewed-by: Cc: Srivatsa S. Bhat Cc: Magnus Damm Link: http://lkml.kernel.org/r/20130321215233.446034505@linutronix.de Signed-off-by: Thomas Gleixner

metag: add exported for extended context handling

2013-03-27T14:37:53Z

Add an exported header file containing the definitions of some bits which can be set in D0.8 to indicate to the kernel that certain DSP state should be preserved. The definitions have the same names and values as the ones in the kernel-internal , to make it easier for DSP assembly code to be compatible between Linux and non-Linux operating systems. Signed-off-by: James Hogan

metag: smp: copy cache partition and enable GCOn

2013-03-15T13:21:17Z

When starting an SMP hardware thread, copy the cache partition configuration so that the threads share the same cache partitions. Also enable the GCOn bit if running in the local half of the virtual address space to enable coherency of shared local cache partitions. An atomic unlock system event is executed by the new cpu before any memory is read to ensure that any writes made by the boot cpu prior to full coherency taking effect are visible to the new cpu. This is to allow SMP to work even when the bootloader hasn't configured the caches for coherency. A log message is printed to describe the cache partition changes so that the user is aware of potential unintentional cache wastage if they've configured the cache partitions in the wrong way. Signed-off-by: James Hogan

metag: remove SET_PERSONALITY()

2013-03-04T10:27:20Z

Commit e72837e3e7bae3f182c4ac63c9424e86f1158dd0 ("default SET_PERSONALITY() in linux/elf.h"). The above commit moved the common definition of SET_PERSONALITY() in a bunch of the arch headers to linux/elf.h. Metag shares that common definition so remove it from arch/metag/include/asm/elf.h too. Signed-off-by: James Hogan

metag: Provide dma_get_sgtable()

2013-03-02T20:11:17Z

metag/allmodconfig: drivers/media/v4l2-core/videobuf2-dma-contig.c: In function 'vb2_dc_get_base_sgt': drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit declaration of function 'dma_get_sgtable' For architectures using dma_map_ops, dma_get_sgtable() is provided in . Metag does not use dma_map_ops yet, hence it should implement it as an inline stub using dma_common_get_sgtable(). Signed-off-by: James Hogan Cc: Geert Uytterhoeven Acked-by: Marek Szyprowski

metag: prom.h: remove declaration of metag_dt_memblock_reserve()

2013-03-02T20:11:17Z

Metag doesn't have a metag_dt_memblock_reserve() function so remove the declaration from asm/prom.h. Signed-off-by: James Hogan

metag: copy devicetree to non-init memory

2013-03-02T20:11:17Z

Make a copy of the device tree blob in non-init memory. It is required when using built-in device tree files that the platform code copies the blob to non-init memory prior to calling unflatten_device_tree(), otherwise the strings that the device tree refer to will get poisoned and potentially reused, breaking later reading of the device tree post-init (such as compatible matching in modules, debugfs, and the procfs interface). Signed-off-by: James Hogan Reviewed-by: Vineet Gupta

metag: move irq enable out of irqflags.h on SMP

2013-03-02T20:11:14Z

The SMP version of arch_local_irq_enable() uses preempt_disable(), but doesn't include causing the following errors on SMP when pstore/ftrace is enabled (caught by buildbot smp allyesconfig): In file included from include/linux/irqflags.h:15, from fs/pstore/ftrace.c:16: arch/metag/include/asm/irqflags.h: In function 'arch_local_irq_enable': arch/metag/include/asm/irqflags.h:84: error: implicit declaration of function 'preempt_disable' arch/metag/include/asm/irqflags.h:86: error: implicit declaration of function 'preempt_enable_no_resched' However cannot be easily included from as it can cause circular include dependencies in the !SMP case, and potentially in the SMP case in the future. Therefore move the SMP implementation of arch_local_irq_enable() into traps.c and use an inline version of get_trigger_mask() which is also defined in traps.c for SMP. This adds an extra layer of function call / stack push when preempt_disable needs to call other functions, however in the non-preemptive SMP case it should be about as fast, as it was already calling the get_trigger_mask() function which is now used inline. Signed-off-by: James Hogan