summaryrefslogtreecommitdiff
path: root/arch/mips/include/asm
AgeCommit message (Collapse)AuthorFilesLines
2014-01-20Merge branch 'core-locking-for-linus' of ↵Linus Torvalds1-0/+15
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core locking changes from Ingo Molnar: - futex performance increases: larger hashes, smarter wakeups - mutex debugging improvements - lots of SMP ordering documentation updates - introduce the smp_load_acquire(), smp_store_release() primitives. (There are WIP patches that make use of them - not yet merged) - lockdep micro-optimizations - lockdep improvement: better cover IRQ contexts - liblockdep at last. We'll continue to monitor how useful this is * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits) futexes: Fix futex_hashsize initialization arch: Re-sort some Kbuild files to hopefully help avoid some conflicts futexes: Avoid taking the hb->lock if there's nothing to wake up futexes: Document multiprocessor ordering guarantees futexes: Increase hash table size for better performance futexes: Clean up various details arch: Introduce smp_load_acquire(), smp_store_release() arch: Clean up asm/barrier.h implementations using asm-generic/barrier.h arch: Move smp_mb__{before,after}_atomic_{inc,dec}.h into asm/atomic.h locking/doc: Rename LOCK/UNLOCK to ACQUIRE/RELEASE mutexes: Give more informative mutex warning in the !lock->owner case powerpc: Full barrier for smp_mb__after_unlock_lock() rcu: Apply smp_mb__after_unlock_lock() to preserve grace periods Documentation/memory-barriers.txt: Downgrade UNLOCK+BLOCK locking: Add an smp_mb__after_unlock_lock() for UNLOCK+BLOCK barrier Documentation/memory-barriers.txt: Document ACCESS_ONCE() Documentation/memory-barriers.txt: Prohibit speculative writes Documentation/memory-barriers.txt: Add long atomic examples to memory-barriers.txt Documentation/memory-barriers.txt: Add needed ACCESS_ONCE() calls to memory-barriers.txt Revert "smp/cpumask: Make CONFIG_CPUMASK_OFFSTACK=y usable without debug dependency" ...
2014-01-15MIPS: fix blast_icache32 on loongson2Aaro Koskinen1-21/+22
Commit 14bd8c082016 ("MIPS: Loongson: Get rid of Loongson 2 #ifdefery all over arch/mips") failed to add Loongson2 specific blast_icache32 functions. Fix that. The patch fixes the following crash seen with 3.13-rc1: Reserved instruction in kernel code[#1]: [...] Call Trace: blast_icache32_page+0x8/0xb0 r4k_flush_cache_page+0x19c/0x200 do_wp_page.isra.97+0x47c/0xe08 handle_mm_fault+0x938/0x1118 __do_page_fault+0x140/0x540 resume_userspace_check+0x0/0x10 Code: 00200825 64834000 00200825 <bc900000> bc900020 bc900040 bc900060 bc900080 bc9000a0 Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Acked-by: John Crispin <blogic@openwrt.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-15MIPS: fix case mismatch in local_r4k_flush_icache_range()Huacai Chen2-5/+5
Currently, Loongson-2 call protected_blast_icache_range() and others call protected_loongson23_blast_icache_range(), but I think the correct behavior should be the opposite. BTW, Loongson-3's cache-ops is compatible with MIPS64, but not compatible with Loongson-2. So, rename xxx_loongson23_yyy things to xxx_loongson2_yyy. The patch fixes early boot hang with 3.13-rc1, introduced in commit 14bd8c082016 ("MIPS: Loongson: Get rid of Loongson 2 #ifdefery all over arch/mips"). Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Acked-by: John Crispin <blogic@openwrt.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-12arch: Introduce smp_load_acquire(), smp_store_release()Peter Zijlstra1-0/+15
A number of situations currently require the heavyweight smp_mb(), even though there is no need to order prior stores against later loads. Many architectures have much cheaper ways to handle these situations, but the Linux kernel currently has no portable way to make use of them. This commit therefore supplies smp_load_acquire() and smp_store_release() to remedy this situation. The new smp_load_acquire() primitive orders the specified load against any subsequent reads or writes, while the new smp_store_release() primitive orders the specifed store against any prior reads or writes. These primitives allow array-based circular FIFOs to be implemented without an smp_mb(), and also allow a theoretical hole in rcu_assign_pointer() to be closed at no additional expense on most architectures. In addition, the RCU experience transitioning from explicit smp_read_barrier_depends() and smp_wmb() to rcu_dereference() and rcu_assign_pointer(), respectively resulted in substantial improvements in readability. It therefore seems likely that replacing other explicit barriers with smp_load_acquire() and smp_store_release() will provide similar benefits. It appears that roughly half of the explicit barriers in core kernel code might be so replaced. [Changelog by PaulMck] Reviewed-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Michael Neuling <mikey@neuling.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Victor Kaplansky <VICTORK@il.ibm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Oleg Nesterov <oleg@redhat.com> Link: http://lkml.kernel.org/r/20131213150640.908486364@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-19Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds1-2/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq cleanups from Ingo Molnar: "This is a multi-arch cleanup series from Thomas Gleixner, which we kept to near the end of the merge window, to not interfere with architecture updates. This series (motivated by the -rt kernel) unifies more aspects of IRQ handling and generalizes PREEMPT_ACTIVE" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: preempt: Make PREEMPT_ACTIVE generic sparc: Use preempt_schedule_irq ia64: Use preempt_schedule_irq m32r: Use preempt_schedule_irq hardirq: Make hardirq bits generic m68k: Simplify low level interrupt handling code genirq: Prevent spurious detection for unconditionally polled interrupts
2013-11-16Merge branch 'for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "Usual earth-shaking, news-breaking, rocket science pile from trivial.git" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits) doc: usb: Fix typo in Documentation/usb/gadget_configs.txt doc: add missing files to timers/00-INDEX timekeeping: Fix some trivial typos in comments mm: Fix some trivial typos in comments irq: Fix some trivial typos in comments NUMA: fix typos in Kconfig help text mm: update 00-INDEX doc: Documentation/DMA-attributes.txt fix typo DRM: comment: `halve' -> `half' Docs: Kconfig: `devlopers' -> `developers' doc: typo on word accounting in kprobes.c in mutliple architectures treewide: fix "usefull" typo treewide: fix "distingush" typo mm/Kconfig: Grammar s/an/a/ kexec: Typo s/the/then/ Documentation/kvm: Update cpuid documentation for steal time and pv eoi treewide: Fix common typo in "identify" __page_to_pfn: Fix typo in comment Correct some typos for word frequency clk: fixed-factor: Fix a trivial typo ...
2013-11-15Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-7/+0
Pull KVM changes from Paolo Bonzini: "Here are the 3.13 KVM changes. There was a lot of work on the PPC side: the HV and emulation flavors can now coexist in a single kernel is probably the most interesting change from a user point of view. On the x86 side there are nested virtualization improvements and a few bugfixes. ARM got transparent huge page support, improved overcommit, and support for big endian guests. Finally, there is a new interface to connect KVM with VFIO. This helps with devices that use NoSnoop PCI transactions, letting the driver in the guest execute WBINVD instructions. This includes some nVidia cards on Windows, that fail to start without these patches and the corresponding userspace changes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (146 commits) kvm, vmx: Fix lazy FPU on nested guest arm/arm64: KVM: PSCI: propagate caller endianness to the incoming vcpu arm/arm64: KVM: MMIO support for BE guest kvm, cpuid: Fix sparse warning kvm: Delete prototype for non-existent function kvm_check_iopl kvm: Delete prototype for non-existent function complete_pio hung_task: add method to reset detector pvclock: detect watchdog reset at pvclock read kvm: optimize out smp_mb after srcu_read_unlock srcu: API for barrier after srcu read unlock KVM: remove vm mmap method KVM: IOMMU: hva align mapping page size KVM: x86: trace cpuid emulation when called from emulator KVM: emulator: cleanup decode_register_operand() a bit KVM: emulator: check rex prefix inside decode_register() KVM: x86: fix emulation of "movzbl %bpl, %eax" kvm_host: typo fix KVM: x86: emulate SAHF instruction MAINTAINERS: add tree for kvm.git Documentation/kvm: add a 00-INDEX file ...
2013-11-15mips: handle pgtable_page_ctor() failKirill A. Shutemov1-3/+6
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-13preempt: Make PREEMPT_ACTIVE genericThomas Gleixner1-2/+0
No point in having this bit defined by architecture. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20130917183629.090698799@linutronix.de
2013-11-12Merge tag 'devicetree-for-3.13' of ↵Linus Torvalds2-14/+1
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() ...
2013-11-12Merge branch 'sched-core-for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler changes from Ingo Molnar: "The main changes in this cycle are: - (much) improved CONFIG_NUMA_BALANCING support from Mel Gorman, Rik van Riel, Peter Zijlstra et al. Yay! - optimize preemption counter handling: merge the NEED_RESCHED flag into the preempt_count variable, by Peter Zijlstra. - wait.h fixes and code reorganization from Peter Zijlstra - cfs_bandwidth fixes from Ben Segall - SMP load-balancer cleanups from Peter Zijstra - idle balancer improvements from Jason Low - other fixes and cleanups" * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (129 commits) ftrace, sched: Add TRACE_FLAG_PREEMPT_RESCHED stop_machine: Fix race between stop_two_cpus() and stop_cpus() sched: Remove unnecessary iteration over sched domains to update nr_busy_cpus sched: Fix asymmetric scheduling for POWER7 sched: Move completion code from core.c to completion.c sched: Move wait code from core.c to wait.c sched: Move wait.c into kernel/sched/ sched/wait: Fix __wait_event_interruptible_lock_irq_timeout() sched: Avoid throttle_cfs_rq() racing with period_timer stopping sched: Guarantee new group-entities always have weight sched: Fix hrtimer_cancel()/rq->lock deadlock sched: Fix cfs_bandwidth misuse of hrtimer_expires_remaining sched: Fix race on toggling cfs_bandwidth_used sched: Remove extra put_online_cpus() inside sched_setaffinity() sched/rt: Fix task_tick_rt() comment sched/wait: Fix build breakage sched/wait: Introduce prepare_to_wait_event() sched/wait: Add ___wait_cond_timeout() to wait_event*_timeout() too sched: Remove get_online_cpus() usage sched: Fix race in migrate_swap_stop() ...
2013-11-07Merge remote-tracking branch 'grant/devicetree/next' into for-nextRob Herring1-1/+1
2013-11-07MIPS: Netlogic: replace early_init_devtree() callJayachandran C1-0/+1
The early_init_devtree() API was removed in linux-next for 3.13 with commit "mips: use early_init_dt_scan". This causes Netlogic XLP compile to fail: arch/mips/netlogic/xlp/setup.c:101: undefined reference to `early_init_devtree' Add xlp_early_init_devtree() which uses the __dt_setup_arch() to handle early device tree related initialization to fix this. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-11-04MIPS: Random whitespace clean-upsMaciej W. Rozycki3-6/+6
Another whitespace clean-up, this removes tabs from between sentences in some comments. Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6103/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Remove unused defines in piix4.hDeng-Cheng Zhu1-57/+0
The PIIX4_ICTLR* and PIIX4_OCW* defines are not used by any other files. Remove them. The only file (other than fixup-malta.c which includes piix4.h in patch #1) containing "#include <asm/mips-boards/piix4.h>" is arch/mips/mti-malta/malta-int.c whose first version is actually "1da177e4c3:arch/mips/mips-boards/malta/malta_int.c". In that version, in the function get_int(), things in piix4.h are used. But now malta-int.c no longer needs those stuff. Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6032/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Get rid of hard-coded values for Malta PIIX4 fixupsDeng-Cheng Zhu1-0/+23
Make the code more readable by using defines. Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6031/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Always register R4K clock when selectedSteven J. Hill1-1/+1
Always register the R4K clocksource when CONFIG_CSRC_R4K is selected, regardless of selected support for other clocksources. The kernel will select the best clocksource based on their ratings, making it safe to register R4K unconditionally and use it as a fallback should the kernel be run on a system where other selected clocksources are inoperable. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6024/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Loongson: Get rid of Loongson 2 #ifdefery all over arch/mips.Ralf Baechle2-15/+35
It was ugly. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: cacheops.h: Increase indentation by one tab.Ralf Baechle1-43/+43
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: PowerTV: Remove support code.Ralf Baechle10-1003/+0
Nobody seems to care about this platform anymore and my attempts to find somebody willing to provide some tlc for PowerTV have failed so far. So let's nuke the bloody thing. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/5910/
2013-10-30MIPS: ftrace: Add support for syscall tracepoints.Ralf Baechle3-3/+32
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Move audit_arch() helper function to __syscall_get_arch().Ralf Baechle1-0/+14
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Enable HAVE_ARCH_TRACEHOOK.Ralf Baechle2-1/+80
This enables /proc/<pid>/syscall and the ptrace PTRACE_GETREGSET and PTRACE_SETREGSET operations. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Switch ELF core dumper to use regsets.Ralf Baechle1-0/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Provide arch_syscall_addr.Ralf Baechle1-0/+16
The generic version is wrong for MIPS. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: mm: Use scratch for PGD when !CONFIG_MIPS_PGD_C0_CONTEXTJayachandran C1-5/+1
Allow usage of scratch register for current pgd even when MIPS_PGD_C0_CONTEXT is not configured. MIPS_PGD_C0_CONTEXT is set for 64r2 platforms to indicate availability of Xcontext for saving cpuid, thus freeing Context to be used for saving PGD. This option was also tied to using a scratch register for storing PGD. This commit will allow usage of scratch register to store the current pgd if one can be allocated for the platform, even when MIPS_PGD_C0_CONTEXT is not set. The cpuid will be kept in the CP0 Context register in this case. The code to store the current pgd for the TLB miss handler is now generated in all cases. When scratch register is available, the PGD is also stored in the scratch register. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/5906/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: DECstation CPU feature overridesMaciej W. Rozycki1-0/+87
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5877/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30DEC: Whitespace cleanupMaciej W. Rozycki4-9/+9
Commit 7034228792cc561e79ff8600f02884bd4c80e287 [MIPS: Whitespace cleanup.] did a lot of good and a little damage. Revert the damage. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5875/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: DECstation I/O ASIC DMA interrupt classesMaciej W. Rozycki1-2/+0
This change complements commits d0da7c002f7b2a93582187a9e3f73891a01d8ee4 [MIPS: DEC: Convert to new irq_chip functions] and 5359b938c088423a28c41499f183cd10824c1816 [MIPS: DECstation I/O ASIC DMA interrupt handling fix] and implements automatic handling of the two classes of DMA interrupts the I/O ASIC implements, informational and errors. Informational DMA interrupts do not stop the transfer and use the `handle_edge_irq' handler that clears the request right away so that another request may be recorded while the previous is being handled. DMA error interrupts stop the transfer and require a corrective action before DMA can be reenabled. Therefore they use the `handle_fasteoi_irq' handler that only clears the request on the way out. Because MIPS processor interrupt inputs, one of which the I/O ASIC's interrupt controller is cascaded to, are level-triggered it is recommended that error DMA interrupt action handlers are registered with the IRQF_ONESHOT flag set so that they are run with the interrupt line masked. This change removes the export of clear_ioasic_dma_irq that now does not have to be called by device drivers to clear interrupts explicitly anymore. Originally these interrupts were cleared in the .end handler of the `irq_chip' structure, before it was removed. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5874/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Remove unnecessary platform dma helper functionsFelix Fietkau7-73/+0
The semantics stay the same - on Cavium Octeon the functions were dead code (it overrides the MIPS DMA ops) - on other platforms they contained no code at all. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5720/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Add 8250/16550 serial early printk driverYoichi Yuasa1-0/+8
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/947/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: BCM47XX: Get GPIO pin from nvram configurationHauke Mehrtens1-0/+2
The nvram contains some gpio configuration for boards. It is stored in a gpio<number>=name format e.g. gpio8=wps_button gpio4=robo_reset This patches adds a function to parse these entries, so other driver can use it. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5841/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: BCM47XX: Add board detectionHauke Mehrtens1-0/+110
Detect on which board this code is running based on some nvram settings. This is needed to start board specific workarounds and configure the leds and buttons which are on different gpios on every board. This patches add some boards we have seen, but there are many more. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5840 Patchwork: https://patchwork.linux-mips.org/patch/5855/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: Move definition of SMP processor id register to header fileJayachandran C3-30/+43
The definition of the CP0 register used to save the smp processor id is repicated in many files, move them all to thread_info.h. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5708/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-30MIPS: ath79: Remove ar933x_uart_platform.h headerGabor Juhos1-18/+0
In commit 15ef17f622033455dcf03ae96256e474073a7b11 (tty: ar933x_uart: use the clk API to get the uart clock), the AR933x UART driver for has been converted to get the uart clock rate via the clock API and it does not use the platform data anymore. Remove the ar933x_uart_platform.h header file and get rid of the superfluous variable and initialization code in platform setup. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5832/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-17Powerpc KVM work is based on a commit after rc4.Gleb Natapov2-2/+2
Merging master into next to satisfy the dependencies. Conflicts: arch/arm/kvm/reset.c
2013-10-14treewide: Fix common typo in "identify"Maxime Jayat1-2/+2
Correct common misspelling of "identify" as "indentify" throughout the kernel Signed-off-by: Maxime Jayat <maxime@artisandeveloppeur.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-10-14KVM: mips: Get rid of KVM_HPAGE definesChristoffer Dall1-7/+0
Now when the main kvm code relying on these defines has been moved to the x86 specific part of the world, we can get rid of these. Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-10-11Merge branch 'core/urgent' into sched/coreIngo Molnar1-1/+1
Merge in asm goto fix, to be able to apply the asm/rmwcc.h fix. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-11compiler/gcc4: Add quirk for 'asm goto' miscompilation bugIngo Molnar1-1/+1
Fengguang Wu, Oleg Nesterov and Peter Zijlstra tracked down a kernel crash to a GCC bug: GCC miscompiles certain 'asm goto' constructs, as outlined here: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670 Implement a workaround suggested by Jakub Jelinek. Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com> Reported-by: Oleg Nesterov <oleg@redhat.com> Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Suggested-by: Jakub Jelinek <jakub@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-10of: implement pci_address_to_pio as weak functionRob Herring1-11/+0
Implement pci_address_to_pio as weak function to remove the dependency on asm/prom.h. This is in preparation to make prom.h optional. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@linaro.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Cc: Grant Likely <grant.likely@linaro.org>
2013-10-09mips: use early_init_dt_scanRob Herring1-3/+0
Convert mips to use new early_init_dt_scan function. Remove early_init_dt_scan_memory_arch Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Acked-by: John Crispin <blogic@openwrt.org>
2013-10-09Merge tag 'v3.12-rc4' into sched/coreIngo Molnar12-19/+296
Merge Linux v3.12-rc4 to fix a conflict and also to refresh the tree before applying more scheduler patches. Conflicts: arch/avr32/include/asm/Kbuild Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-09-25sched, arch: Create asm/preempt.hPeter Zijlstra1-0/+1
In order to prepare to per-arch implementations of preempt_count move the required bits into an asm-generic header and use this for all archs. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-h5j0c1r3e3fk015m30h8f1zx@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-09-24MIPS: cpu-features.h: s/MIPS53/MIPS64/Maciej W. Rozycki1-1/+1
No support for MIPS53 processors yet. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5876/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-19MIPS: Add MIPS R5 config5 register.Ralf Baechle1-0/+7
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-19MIPS: PCI: Use pci_resource_to_user to map pci memory space properlyWolfgang Grandegger1-0/+12
[ralf@linux-mips.org: This only matters to Alchemy platforms. On other platforms fixup_bigphys_addr is just an identidy mapping.] Signed-off-by: Wolfgang Grandegger <wg@denx.de> Cc: tiejun.chen <tiejun.chen@windriver.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/1868/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-18MIPS: Cleanup CP0 PRId and CP1 FPIR register access masksMaciej W. Rozycki2-10/+32
Replace hardcoded CP0 PRId and CP1 FPIR register access masks throughout. The change does not touch places that use shifted or partial masks. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5838/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-18MIPS: Fix VGA_MAP_MEM macro.Leonid Yegoshin1-1/+2
Use the CKSEG1ADDR macro when calculating VGA_MAP_MEM. [ralf@linux-mips.org: Include <asm/addrspace.h for CKSEG1ADDR.] Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5814/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-18MIPS: Reimplement get_cycles().Ralf Baechle1-1/+32
This essentially reverts commit efb9ca08b5a2374b29938cdcab417ce4feb14b54 (kernel.org) / 58020a106879a8b372068741c81f0015c9b0b96dbv [[MIPS] Change get_cycles to always return 0.] Most users of get_cycles() invoke it as a timing interface. That's why in modern kernels it was never very much missed for. /dev/random however uses get_cycles() in the how the jitter in the interrupt timing contains some useful entropy. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
generated by cgit v1.2.3 (git 2.39.0) at 2025-03-12 22:11:47 +0300