- 03 3月, 2017 3 次提交
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由 Ingo Molnar 提交于
It's used only by a single (rarely used) inline function (task_node(p)), which we can move to <linux/sched/topology.h>. ( Add <linux/nodemask.h>, because we rely on that. ) Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
Split out the task->stack related functionality, which is not really part of the core scheduler APIs. Only keep task_thread_info() because it's used by sched.h. Update the code that uses those facilities. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
Move the following task->mm helper APIs into a new header file, <linux/sched/mm.h>, to further reduce the size and complexity of <linux/sched.h>. Here are how the APIs are used in various kernel files: # mm_alloc(): arch/arm/mach-rpc/ecard.c fs/exec.c include/linux/sched/mm.h kernel/fork.c # __mmdrop(): arch/arc/include/asm/mmu_context.h include/linux/sched/mm.h kernel/fork.c # mmdrop(): arch/arm/mach-rpc/ecard.c arch/m68k/sun3/mmu_emu.c arch/x86/mm/tlb.c drivers/gpu/drm/amd/amdkfd/kfd_process.c drivers/gpu/drm/i915/i915_gem_userptr.c drivers/infiniband/hw/hfi1/file_ops.c drivers/vfio/vfio_iommu_spapr_tce.c fs/exec.c fs/proc/base.c fs/proc/task_mmu.c fs/proc/task_nommu.c fs/userfaultfd.c include/linux/mmu_notifier.h include/linux/sched/mm.h kernel/fork.c kernel/futex.c kernel/sched/core.c mm/khugepaged.c mm/ksm.c mm/mmu_context.c mm/mmu_notifier.c mm/oom_kill.c virt/kvm/kvm_main.c # mmdrop_async_fn(): include/linux/sched/mm.h # mmdrop_async(): include/linux/sched/mm.h kernel/fork.c # mmget_not_zero(): fs/userfaultfd.c include/linux/sched/mm.h mm/oom_kill.c # mmput(): arch/arc/include/asm/mmu_context.h arch/arc/kernel/troubleshoot.c arch/frv/mm/mmu-context.c arch/powerpc/platforms/cell/spufs/context.c arch/sparc/include/asm/mmu_context_32.h drivers/android/binder.c drivers/gpu/drm/etnaviv/etnaviv_gem.c drivers/gpu/drm/i915/i915_gem_userptr.c drivers/infiniband/core/umem.c drivers/infiniband/core/umem_odp.c drivers/infiniband/core/uverbs_main.c drivers/infiniband/hw/mlx4/main.c drivers/infiniband/hw/mlx5/main.c drivers/infiniband/hw/usnic/usnic_uiom.c drivers/iommu/amd_iommu_v2.c drivers/iommu/intel-svm.c drivers/lguest/lguest_user.c drivers/misc/cxl/fault.c drivers/misc/mic/scif/scif_rma.c drivers/oprofile/buffer_sync.c drivers/vfio/vfio_iommu_type1.c drivers/vhost/vhost.c drivers/xen/gntdev.c fs/exec.c fs/proc/array.c fs/proc/base.c fs/proc/task_mmu.c fs/proc/task_nommu.c fs/userfaultfd.c include/linux/sched/mm.h kernel/cpuset.c kernel/events/core.c kernel/events/uprobes.c kernel/exit.c kernel/fork.c kernel/ptrace.c kernel/sys.c kernel/trace/trace_output.c kernel/tsacct.c mm/memcontrol.c mm/memory.c mm/mempolicy.c mm/migrate.c mm/mmu_notifier.c mm/nommu.c mm/oom_kill.c mm/process_vm_access.c mm/rmap.c mm/swapfile.c mm/util.c virt/kvm/async_pf.c # mmput_async(): include/linux/sched/mm.h kernel/fork.c mm/oom_kill.c # get_task_mm(): arch/arc/kernel/troubleshoot.c arch/powerpc/platforms/cell/spufs/context.c drivers/android/binder.c drivers/gpu/drm/etnaviv/etnaviv_gem.c drivers/infiniband/core/umem.c drivers/infiniband/core/umem_odp.c drivers/infiniband/hw/mlx4/main.c drivers/infiniband/hw/mlx5/main.c drivers/infiniband/hw/usnic/usnic_uiom.c drivers/iommu/amd_iommu_v2.c drivers/iommu/intel-svm.c drivers/lguest/lguest_user.c drivers/misc/cxl/fault.c drivers/misc/mic/scif/scif_rma.c drivers/oprofile/buffer_sync.c drivers/vfio/vfio_iommu_type1.c drivers/vhost/vhost.c drivers/xen/gntdev.c fs/proc/array.c fs/proc/base.c fs/proc/task_mmu.c include/linux/sched/mm.h kernel/cpuset.c kernel/events/core.c kernel/exit.c kernel/fork.c kernel/ptrace.c kernel/sys.c kernel/trace/trace_output.c kernel/tsacct.c mm/memcontrol.c mm/memory.c mm/mempolicy.c mm/migrate.c mm/mmu_notifier.c mm/nommu.c mm/util.c # mm_access(): fs/proc/base.c include/linux/sched/mm.h kernel/fork.c mm/process_vm_access.c # mm_release(): arch/arc/include/asm/mmu_context.h fs/exec.c include/linux/sched/mm.h include/uapi/linux/sched.h kernel/exit.c kernel/fork.c Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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- 02 3月, 2017 11 次提交
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由 Ingo Molnar 提交于
But first update the code that uses these facilities with the new header. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
Update code that relied on sched.h including various MM types for them. This will allow us to remove the <linux/mm_types.h> include from <linux/sched.h>. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
Introduce dummy header and add dependencies to places that will depend on it. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
We are going to split <linux/sched/task_stack.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/task_stack.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
We are going to split <linux/sched/task.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/task.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
We are going to split <linux/sched/hotplug.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/hotplug.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
We are going to split <linux/sched/debug.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/debug.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> Fix up affected files that include this signal functionality via sched.h. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
Add #include <linux/cred.h> dependencies to all .c files rely on sched.h doing that for them. Note that even if the count where we need to add extra headers seems high, it's still a net win, because <linux/sched.h> is included in over 2,200 files ... Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
We are going to split more MM APIs out of <linux/sched.h>, which will have to be picked up from a couple of .c files. The APIs that we are going to move are: arch_pick_mmap_layout() arch_get_unmapped_area() arch_get_unmapped_area_topdown() mm_update_next_owner() Include the header in the files that are going to need it. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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由 Ingo Molnar 提交于
We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/signal.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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- 28 2月, 2017 2 次提交
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由 Vegard Nossum 提交于
Apart from adding the helper function itself, the rest of the kernel is converted mechanically using: git grep -l 'atomic_inc.*mm_count' | xargs sed -i 's/atomic_inc(&\(.*\)->mm_count);/mmgrab\(\1\);/' git grep -l 'atomic_inc.*mm_count' | xargs sed -i 's/atomic_inc(&\(.*\)\.mm_count);/mmgrab\(\&\1\);/' This is needed for a later patch that hooks into the helper, but might be a worthwhile cleanup on its own. (Michal Hocko provided most of the kerneldoc comment.) Link: http://lkml.kernel.org/r/20161218123229.22952-1-vegard.nossum@oracle.comSigned-off-by: NVegard Nossum <vegard.nossum@oracle.com> Acked-by: NMichal Hocko <mhocko@suse.com> Acked-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Acked-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Luis R. Rodriguez 提交于
Often all is needed is these small helpers, instead of compiler.h or a full kprobes.h. This is important for asm helpers, in fact even some asm/kprobes.h make use of these helpers... instead just keep a generic asm file with helpers useful for asm code with the least amount of clutter as possible. Likewise we need now to also address what to do about this file for both when architectures have CONFIG_HAVE_KPROBES, and when they do not. Then for when architectures have CONFIG_HAVE_KPROBES but have disabled CONFIG_KPROBES. Right now most asm/kprobes.h do not have guards against CONFIG_KPROBES, this means most architecture code cannot include asm/kprobes.h safely. Correct this and add guards for architectures missing them. Additionally provide architectures that not have kprobes support with the default asm-generic solution. This lets us force asm/kprobes.h on the header include/linux/kprobes.h always, but most importantly we can now safely include just asm/kprobes.h on architecture code without bringing the full kitchen sink of header files. Two architectures already provided a guard against CONFIG_KPROBES on its kprobes.h: sh, arch. The rest of the architectures needed gaurds added. We avoid including any not-needed headers on asm/kprobes.h unless kprobes have been enabled. In a subsequent atomic change we can try now to remove compiler.h from include/linux/kprobes.h. During this sweep I've also identified a few architectures defining a common macro needed for both kprobes and ftrace, that of the definition of the breakput instruction up. Some refer to this as BREAKPOINT_INSTRUCTION. This must be kept outside of the #ifdef CONFIG_KPROBES guard. [mcgrof@kernel.org: fix arm64 build] Link: http://lkml.kernel.org/r/CAB=NE6X1WMByuARS4mZ1g9+W=LuVBnMDnh_5zyN0CLADaVh=Jw@mail.gmail.com [sfr@canb.auug.org.au: fixup for kprobes declarations moving] Link: http://lkml.kernel.org/r/20170214165933.13ebd4f4@canb.auug.org.au Link: http://lkml.kernel.org/r/20170203233139.32682-1-mcgrof@kernel.orgSigned-off-by: NLuis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Acked-by: NMasami Hiramatsu <mhiramat@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 2月, 2017 2 次提交
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由 Lucas Stach 提交于
The callers of the DMA alloc functions already provide the proper context GFP flags. Make sure to pass them through to the CMA allocator, to make the CMA compaction context aware. Link: http://lkml.kernel.org/r/20170127172328.18574-3-l.stach@pengutronix.deSigned-off-by: NLucas Stach <l.stach@pengutronix.de> Acked-by: NVlastimil Babka <vbabka@suse.cz> Acked-by: NMichal Hocko <mhocko@suse.com> Cc: Radim Krcmar <rkrcmar@redhat.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Alexander Graf <agraf@suse.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mike Rapoport 提交于
When a non-cooperative userfaultfd monitor copies pages in the background, it may encounter regions that were already unmapped. Addition of UFFD_EVENT_UNMAP allows the uffd monitor to track precisely changes in the virtual memory layout. Since there might be different uffd contexts for the affected VMAs, we first should create a temporary representation for the unmap event for each uffd context and then notify them one by one to the appropriate userfault file descriptors. The event notification occurs after the mmap_sem has been released. [arnd@arndb.de: fix nommu build] Link: http://lkml.kernel.org/r/20170203165141.3665284-1-arnd@arndb.de [mhocko@suse.com: fix nommu build] Link: http://lkml.kernel.org/r/20170202091503.GA22823@dhcp22.suse.cz Link: http://lkml.kernel.org/r/1485542673-24387-3-git-send-email-rppt@linux.vnet.ibm.comSigned-off-by: NMike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: NMichal Hocko <mhocko@suse.com> Signed-off-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NHillf Danton <hillf.zj@alibaba-inc.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@virtuozzo.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 17 2月, 2017 9 次提交
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由 Robert Schiele 提交于
Not every toolchain has -fno-asynchronous-unwind-tables per default on MIPS. This patch specifies the necessary option explicitly for VDSO library build. This prevents the following build failure: GENVDSO arch/mips/vdso/vdso-image.c arch/mips/vdso/genvdso: 'arch/mips/vdso/vdso.so.dbg' contains relocation sections .../arch/mips/vdso/Makefile:84: recipe for target 'arch/mips/vdso/vdso-image.c' failed Signed-off-by: NRobert Schiele <rschiele@gmail.com> Signed-off-by: NAlexander Sverdlin <alexander.sverdlin@nokia.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "Maciej W. Rozycki" <macro@imgtec.com> Cc: Alexander Sverdlin <alexander.sverdlin@nokia.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15127/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Paolo Bonzini 提交于
The purpose of the KVM_SET_SIGNAL_MASK API is to let userspace "kick" a VCPU out of KVM_RUN through a POSIX signal. A signal is attached to a dummy signal handler; by blocking the signal outside KVM_RUN and unblocking it inside, this possible race is closed: VCPU thread service thread -------------------------------------------------------------- check flag set flag raise signal (signal handler does nothing) KVM_RUN However, one issue with KVM_SET_SIGNAL_MASK is that it has to take tsk->sighand->siglock on every KVM_RUN. This lock is often on a remote NUMA node, because it is on the node of a thread's creator. Taking this lock can be very expensive if there are many userspace exits (as is the case for SMP Windows VMs without Hyper-V reference time counter). As an alternative, we can put the flag directly in kvm_run so that KVM can see it: VCPU thread service thread -------------------------------------------------------------- raise signal signal handler set run->immediate_exit KVM_RUN check run->immediate_exit Reviewed-by: NRadim Krčmář <rkrcmar@redhat.com> Reviewed-by: NDavid Hildenbrand <david@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Mirko Parthey 提交于
The Asus WL-500W buttons are active high, but the software treats them as active low. Fix the inverted logic. Fixes: 3be97255 ("MIPS: BCM47XX: Import buttons database from OpenWrt") Signed-off-by: NMirko Parthey <mirko.parthey@web.de> Acked-by: NRafał Miłecki <rafal@milecki.pl> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 3.14.x- Patchwork: https://patchwork.linux-mips.org/patch/15295/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Ian Pozella 提交于
An img directory exists for the Pistchio SoC device tree but the directory itself isn't in the dts Makefile meaning the dtbs never get built. Fixes: daa10170 ("MIPS: DTS: img: add device tree for Marduk board") Signed-off-by: NIan Pozella <Ian.Pozella@imgtec.com> Reviewed-by: NRahul Bedarkar <Rahul.Bedarkar@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15309/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Arnd Bergmann 提交于
One of the last remaining failures in kernelci.org is for a gcc bug: drivers/net/ethernet/qlogic/qlge/qlge_main.c:4819:1: error: insn does not satisfy its constraints: drivers/net/ethernet/qlogic/qlge/qlge_main.c:4819:1: internal compiler error: in extract_constrain_insn, at recog.c:2190 This is apparently broken in gcc-6 but fixed in gcc-7, and I cannot reproduce the problem here. However, it is clear that ip27_defconfig does not actually need this driver as the platform has only PCI-X but not PCIe, and the qlge adapter in turn is PCIe-only. The driver was originally enabled in 2010 along with lots of other drivers. Fixes: 59d302b3 ("MIPS: IP27: Make defconfig useful again.") Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/15197/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Purna Chandra Mandal 提交于
Early clock API pic32_get_pbclk() is defined in early_clk.c and used by time.c and early_console.c. When CONFIG_EARLY_PRINTK isn't set, early_clk.c isn't compiled and time.c fails to link. Fix it by compiling early_clk.c always. Also sort files in alphabetical order. Fixes: 6e4ad1b4 ("MIPS: pic32mzda: fix getting timer clock rate.") Reported-by: NHarvey Hunt <harvey.hunt@imgtec.com> Signed-off-by: NPurna Chandra Mandal <purna.mandal@microchip.com> Reviewed-by: NHarvey Hunt <harvey.hunt@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Joshua Henderson <digitalpeer@digitalpeer.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 4.7.x- Patchwork: https://patchwork.linux-mips.org/patch/13383/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Felix Fietkau 提交于
Disabling ethernet during reboot (only to enable it again when the ethernet driver attaches) can put the chip into a faulty state where it corrupts the header of all incoming packets. This happens if packets arrive during the time window where the core is disabled, and it can be easily reproduced by rebooting while sending a flood ping to the broadcast address. Fixes: 95135bfa ("MIPS: Lantiq: Deactivate most of the devices by default") Signed-off-by: NFelix Fietkau <nbd@nbd.name> Acked-by: NJohn Crispin <john@phrozen.org> Cc: hauke.mehrtens@lantiq.com Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 4.4.x- Patchwork: https://patchwork.linux-mips.org/patch/15078/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 James Cowgill 提交于
If copy_from_user is called with a large buffer (>= 128 bytes) and the userspace buffer refers partially to unreadable memory, then it is possible for Octeon's copy_from_user to report the wrong number of bytes have been copied. In the case where the buffer size is an exact multiple of 128 and the fault occurs in the last 64 bytes, copy_from_user will report that all the bytes were copied successfully but leave some garbage in the destination buffer. The bug is in the main __copy_user_common loop in octeon-memcpy.S where in the middle of the loop, src and dst are incremented by 128 bytes. The l_exc_copy fault handler is used after this but that assumes that "src < THREAD_BUADDR($28)". This is not the case if src has already been incremented. Fix by adding an extra fault handler which rewinds the src and dst pointers 128 bytes before falling though to l_exc_copy. Thanks to the pwritev test from the strace test suite for originally highlighting this bug! Fixes: 5b3b1688 ("MIPS: Add Cavium OCTEON processor support ...") Signed-off-by: NJames Cowgill <James.Cowgill@imgtec.com> Acked-by: NDavid Daney <david.daney@cavium.com> Reviewed-by: NJames Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14978/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Ralf Baechle 提交于
For certain arguments such as saddr = 0xc0a8fd60, daddr = 0xc0a8fda1, len = 80, proto = 17, sum = 0x7eae049d there will be a carry when folding the intermediate 64 bit checksum to 32 bit but the code doesn't add the carry back to the one's complement sum, thus an incorrect result will be generated. Reported-by: NMark Zhang <bomb.zhang@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org> Reviewed-by: NJames Hogan <james.hogan@imgtec.com> Cc: stable@vger.kernel.org Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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- 16 2月, 2017 1 次提交
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由 James Hogan 提交于
Recent versions of udev and systemd require the kernel to be compiled with CONFIG_DEVTMPFS in order to populate the /dev directory. Most MIPS platforms have it enabled by default, so enable it for the Cavium Octeon defconfig as well. This will assist with automated kernel boot testing. Signed-off-by: NJames Hogan <james.hogan@imgtec.com> Acked-by: NDavid Daney <david.daney@cavium.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15294/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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- 15 2月, 2017 1 次提交
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由 Hauke Mehrtens 提交于
physical_memsize is needed by the vpe loader code and the platform specific code has to define it. This value will be given to the firmware loaded with the VPE loader. I am not aware of any standard interface or better value to provide here. Reported-by: Nkbuild test robot <lkp@intel.com> Fixes: d9ae4f18 ("MIPS: Lantiq: Activate more drivers in default configuration") Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: John Crispin <john@phrozen.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14908/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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- 14 2月, 2017 11 次提交
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由 Wei Yongjun 提交于
Remove duplicated include. Fixes: 7c0f6ba6 ("Replace <asm/uaccess.h> with <linux/uaccess.h> globally") Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Markus Elfring <elfring@users.sourceforge.net> Cc: Wei Yongjun <weiyongjun1@huawei.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15213/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Paul Gortmaker 提交于
Historically a lot of these existed because we did not have a distinction between what was modular code and what was providing support to modules via EXPORT_SYMBOL and friends. That changed when we forked out support for the latter into the export.h file. This means we should be able to reduce the usage of module.h in code that is obj-y Makefile or bool Kconfig. In the case of some code where it is modular, we can extend that to also include files that are building basic support functionality but not related to loading or registering the final module; such files also have no need whatsoever for module.h The advantage in removing such instances is that module.h itself sources about 15 other headers; adding significantly to what we feed cpp, and it can obscure what headers we are effectively using. Since module.h might have been the implicit source for init.h (for __init) and for export.h (for EXPORT_SYMBOL) we consider each instance for the presence of either and replace/add as needed. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. Build coverage of all the mips defconfigs revealed the module.h header was masking a couple of implicit include instances, so we add the appropriate headers there. Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Cc: David Daney <david.daney@cavium.com> Cc: John Crispin <john@phrozen.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "Steven J. Hill" <steven.hill@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15131/ [james.hogan@imgtec.com: Preserve sort order where it already exists] Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 James Hogan 提交于
Unify definitions for MIPS performance counter register fields in mipsregs.h rather than duplicating them in perf_events and oprofile. This will allow future patches to use them to expose performance counters to KVM guests. Signed-off-by: NJames Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Robert Richter <rric@kernel.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: oprofile-list@lists.sf.net Patchwork: https://patchwork.linux-mips.org/patch/15212/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Joshua Kinard 提交于
Disable stack checking on MIPS kernels. Some distribution toolchains might pass the -fstack-check option to gcc. This results in a store-doubleword instruction being emitted at the top of all functions that checks the available stack space. E.g., a80000000001d740 <per_cpu_init>: a80000000001d740: ffa0bfc0 sd zero,-16448(sp) a80000000001d744: 2405ffc9 li a1,-55 a80000000001d748: 67bdffc0 daddiu sp,sp,-64 Generally, this is undesirable, and especially on the SGI IP27 platform, it will trigger a NULL pointer dereference in '_raw_spin_lock_irq' during early init. Signed-off-by: NJoshua Kinard <kumba@gentoo.org> Suggested-by: NJames Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15132/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Steven J. Hill 提交于
Add all the necessary platform code to initialize the dwc3 USB host controller. This code initializes the clocks and performs a reset on the USB core and PHYs. The driver code in 'drivers/usb/dwc3' is where the real driver lives. Signed-off-by: NSteven J. Hill <steven.hill@cavium.com> Acked-by: NDavid Daney <david.daney@cavium.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15108/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Felix Fietkau 提交于
With the IRQ stack changes integrated, the XRX200 devices started emitting a constant stream of kernel messages like this: [ 565.415310] Spurious IRQ: CAUSE=0x1100c300 This is caused by IP0 getting handled by plat_irq_dispatch() rather than its vectored interrupt handler, which is fixed by commit de856416e714 ("MIPS: IRQ Stack: Fix erroneous jal to plat_irq_dispatch"). Fix plat_irq_dispatch() to handle non-vectored IPI interrupts correctly by setting up IP2-6 as proper chained IRQ handlers and calling do_IRQ for all MIPS CPU interrupts. Signed-off-by: NFelix Fietkau <nbd@nbd.name> Acked-by: NJohn Crispin <john@phrozen.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15077/ [james.hogan@imgtec.com: tweaked commit message] Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Matt Redfearn 提交于
Since commit 4bcc595c ("printk: reinstate KERN_CONT for printing continuation lines") the output of counter synchornisation has been split across lines: [ 0.665181] Synchronize counters for CPU 1: [ 0.678578] done. Fix this by using pr_cont, and replace printk with pr_info. Signed-off-by: NMatt Redfearn <matt.redfearn@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15195/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Matt Redfearn 提交于
Commit dda45f70 ("MIPS: Switch to the irq_stack in interrupts") changed both the normal and vectored interrupt handlers. Unfortunately the vectored version, "except_vec_vi_handler", was incorrectly modified to unconditionally jal to plat_irq_dispatch, rather than doing a jalr to the vectored handler that has been set up. This is ok for many platforms which set the vectored handler to plat_irq_dispatch anyway, but will cause problems with platforms that use other handlers. Fixes: dda45f70 ("MIPS: Switch to the irq_stack in interrupts") Signed-off-by: NMatt Redfearn <matt.redfearn@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15110/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 Matt Redfearn 提交于
The postlink Makefile must include include/config/auto.conf to get the kernel configuration variables. But in a clean kernel directory this file does not exist, causing make to bail with the error: arch/mips/Makefile.postlink:10: include/config/auto.conf: No such file or directory make[1]: *** No rule to make target 'include/config/auto.conf'. Stop. Makefile:1290: recipe for target 'vmlinuxclean' failed Fix this by using "-include" to not cause a Make error when the file does not exist. Fixes: 44079d35 ("MIPS: Use Makefile.postlink to insert relocations into vmlinux") Signed-off-by: NMatt Redfearn <matt.redfearn@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15136/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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由 James Hogan 提交于
The recently added MIPS cacheinfo support used a macro populate_cache() to populate the cacheinfo structures depending on which caches are present. However the macro contains multiple statements without enclosing them in a do {} while (0) loop, so the L2 and L3 cache conditionals in populate_cache_leaves() only conditionalised the first statement in the macro. This overflows the buffer allocated by detect_cache_attributes(), resulting in boot failures under QEMU where neither the L2 or L2 caches are present. Enclose the macro statements in a do {} while (0) block to keep the whole macro inside the conditionals. Fixes: ef462f3b ("MIPS: Add cacheinfo support") Reported-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NJames Hogan <james.hogan@imgtec.com> Tested-by: NGuenter Roeck <linux@roeck-us.net> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Justin Chen <justin.chen@broadcom.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: bcm-kernel-feedback-list@broadcom.com Patchwork: https://patchwork.linux-mips.org/patch/15276/
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由 Paul Burton 提交于
When building for microMIPS we need to ensure that the assembler always knows that there is code at the target of a branch or jump. Commit 7170bdc7 ("MIPS: Add return errors to protected cache ops") introduced a fixup path to protected_cache(e)_op() which does not meet this requirement. The fixup path jumps to the "2" label but the .section pseudo-op immediately following it causes the label to be marked as data. Linking then fails with: mips-img-linux-gnu-ld: arch/mips/mm/c-r4k.o: .fixup+0x0: Unsupported jump between ISA modes; consider recompiling with interlinking enabled. Fix this by declaring that "2" labels code using the .insn directive. Fixes: 7170bdc7 ("MIPS: Add return errors to protected cache ops") Signed-off-by: NPaul Burton <paul.burton@imgtec.com> Signed-off-by: NJames Hogan <james.hogan@imgtec.com> Reviewed-by: NMaciej W. Rozycki <macro@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Ralf Baechle <ralf@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/15274/Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
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