summaryrefslogtreecommitdiff
path: root/arch/powerpc
AgeCommit message (Collapse)AuthorFilesLines
2020-04-03Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs ↵Nicholas Piggin1-31/+13
enabled" This reverts commit ebb37cf3ffd39fdb6ec5b07111f8bb2f11d92c5f. That commit does not play well with soft-masked irq state manipulations in idle, interrupt replay, and possibly others due to tracing code sometimes using irq_work_queue (e.g., in trace_hardirqs_on()). That can cause PACA_IRQ_DEC to become set when it is not expected, and be ignored or cleared or cause warnings. The net result seems to be missing an irq_work until the next timer interrupt in the worst case which is usually not going to be noticed, however it could be a long time if the tick is disabled, which is against the spirit of irq_work and might cause real problems. The idea is still solid, but it would need more work. It's not really clear if it would be worth added complexity, so revert this for now (not a straight revert, but replace with a comment explaining why we might see interrupts happening, and gives git blame something to find). Fixes: ebb37cf3ffd3 ("powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200402120401.1115883-1-npiggin@gmail.com
2020-04-03powerpc/time: Replace <linux/clk-provider.h> by <linux/of_clk.h>Geert Uytterhoeven1-3/+1
The PowerPC time code is not a clock provider, and just needs to call of_clk_init(). Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>. Remove the #ifdef protecting the of_clk_init() call, as a stub is available for the !CONFIG_COMMON_CLK case. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200213083804.24315-1-geert+renesas@glider.be
2020-04-03Merge branch 'for-5.7/libnvdimm' into libnvdimm-for-nextDan Williams1-1/+3
- Introduce 'zero_page_range' as a dax operation. This facilitates filesystem-dax operation without a block-device. - Advertise a persistence-domain for of_pmem and papr_scm. The persistence domain indicates where cpu-store cycles need to reach in the platform-memory subsystem before the platform will consider them power-fail protected. - Fixup some flexible-array declarations.
2020-04-03Merge branch 'for-5.7/numa' into libnvdimm-for-nextDan Williams1-20/+1
- Promote numa_map_to_online_node() to a cross-kernel generic facility. - Save x86 numa information to allow for node-id lookups for reserved memory ranges, deploy that capability for the e820-pmem driver. - Introduce phys_to_target_node() to facilitate drivers that want to know resulting numa node if a given reserved address range was onlined.
2020-04-03powerpc/pseries/ddw: Extend upper limit for huge DMA window for persistent ↵Alexey Kardashevskiy1-0/+9
memory Unlike normal memory ("memory" compatible type in the FDT), the persistent memory ("ibm,pmemory" in the FDT) can be mapped anywhere in the guest physical space and it can be used for DMA. In order to maintain 1:1 mapping via the huge DMA window, we need to know the maximum physical address at the time of the window setup. So far we've been looking at "memory" nodes but "ibm,pmemory" does not have fixed addresses and the persistent memory may be mapped afterwards. Since the persistent memory is still backed with page structs, use MAX_PHYSMEM_BITS as the upper limit. This effectively disables huge DMA window in LPAR under pHyp if persistent memory is present but this is the best we can do for the moment. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Tested-by: Wen Xiong<wenxiong@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200331012338.23773-1-aik@ozlabs.ru
2020-04-03Merge tag 'devicetree-for-5.7' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree updates from Rob Herring: - Unit test for overlays with GPIO hogs - Improve dma-ranges parsing to handle dma-ranges with multiple entries - Update dtc to upstream version v1.6.0-2-g87a656ae5ff9 - Improve overlay error reporting - Device link support for power-domains and hwlocks bindings - Add vendor prefixes for Beacon, Topwise, ENE, Dell, SG Micro, Elida, PocketBook, Xiaomi, Linutronix, OzzMaker, Waveshare Electronics, and ITE Tech - Add deprecated Marvell vendor prefix 'mrvl' - A bunch of binding conversions to DT schema continues. Of note, the common serial and USB connector bindings are converted. - Add more Arm CPU compatibles - Drop Mark Rutland as DT maintainer :( * tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (106 commits) MAINTAINERS: drop an old reference to stm32 pwm timers doc MAINTAINERS: dt: update etnaviv file reference dt-bindings: usb: dwc2: fix bindings for amlogic, meson-gxbb-usb dt-bindings: uniphier-system-bus: fix warning in the example dt-bindings: display: meson-vpu: fix indentation of reg-names' "items" dt-bindings: iio: Fix adi, ltc2983 uint64-matrix schema constraints dt-bindings: power: Fix example for power-domain dt-bindings: arm: Add some constraints for PSCI nodes of: some unittest overlays not untracked of: gpio unittest kfree() wrong object dt-bindings: phy: convert phy-rockchip-inno-usb2 bindings to yaml dt-bindings: serial: sh-sci: Convert to json-schema dt-bindings: serial: Document serialN aliases dt-bindings: thermal: tsens: Set 'additionalProperties: false' dt-bindings: thermal: tsens: Fix nvmem-cell-names schema dt-bindings: vendor-prefixes: Add Beacon vendor prefix dt-bindings: vendor-prefixes: Add Topwise of: of_private.h: Replace zero-length array with flexible-array member docs: dt: fix a broken reference to input.yaml docs: dt: fix references to ap806-system-controller.txt ...
2020-04-03Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds13-13/+0
Pull SCSI updates from James Bottomley: "This series has a huge amount of churn because it pulls in Mauro's doc update changing all our txt files to rst ones. Excluding that, we have the usual driver updates (qla2xxx, ufs, lpfc, zfcp, ibmvfc, pm80xx, aacraid), a treewide update for scnprintf and some other minor updates. The major core change is Hannes moving functions out of the aacraid driver and into the core" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (223 commits) scsi: aic7xxx: aic97xx: Remove FreeBSD-specific code scsi: ufs: Do not rely on prefetched data scsi: dc395x: remove dc395x_bios_param scsi: libiscsi: Fix error count for active session scsi: hpsa: correct race condition in offload enabled scsi: message: fusion: Replace zero-length array with flexible-array member scsi: qedi: Add PCI shutdown handler support scsi: qedi: Add MFW error recovery process scsi: ufs: Enable block layer runtime PM for well-known logical units scsi: ufs-qcom: Override devfreq parameters scsi: ufshcd: Let vendor override devfreq parameters scsi: ufshcd: Update the set frequency to devfreq scsi: ufs: Resume ufs host before accessing ufs device scsi: ufs-mediatek: customize the delay for enabling host scsi: ufs: make HCE polling more compact to improve initialization latency scsi: ufs: allow custom delay prior to host enabling scsi: ufs-mediatek: use common delay function scsi: ufs: introduce common and flexible delay function scsi: ufs: use an enum for host capabilities scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc() ...
2020-04-03Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds27-203/+234
Pull kvm updates from Paolo Bonzini: "ARM: - GICv4.1 support - 32bit host removal PPC: - secure (encrypted) using under the Protected Execution Framework ultravisor s390: - allow disabling GISA (hardware interrupt injection) and protected VMs/ultravisor support. x86: - New dirty bitmap flag that sets all bits in the bitmap when dirty page logging is enabled; this is faster because it doesn't require bulk modification of the page tables. - Initial work on making nested SVM event injection more similar to VMX, and less buggy. - Various cleanups to MMU code (though the big ones and related optimizations were delayed to 5.8). Instead of using cr3 in function names which occasionally means eptp, KVM too has standardized on "pgd". - A large refactoring of CPUID features, which now use an array that parallels the core x86_features. - Some removal of pointer chasing from kvm_x86_ops, which will also be switched to static calls as soon as they are available. - New Tigerlake CPUID features. - More bugfixes, optimizations and cleanups. Generic: - selftests: cleanups, new MMU notifier stress test, steal-time test - CSV output for kvm_stat" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (277 commits) x86/kvm: fix a missing-prototypes "vmread_error" KVM: x86: Fix BUILD_BUG() in __cpuid_entry_get_reg() w/ CONFIG_UBSAN=y KVM: VMX: Add a trampoline to fix VMREAD error handling KVM: SVM: Annotate svm_x86_ops as __initdata KVM: VMX: Annotate vmx_x86_ops as __initdata KVM: x86: Drop __exit from kvm_x86_ops' hardware_unsetup() KVM: x86: Copy kvm_x86_ops by value to eliminate layer of indirection KVM: x86: Set kvm_x86_ops only after ->hardware_setup() completes KVM: VMX: Configure runtime hooks using vmx_x86_ops KVM: VMX: Move hardware_setup() definition below vmx_x86_ops KVM: x86: Move init-only kvm_x86_ops to separate struct KVM: Pass kvm_init()'s opaque param to additional arch funcs s390/gmap: return proper error code on ksm unsharing KVM: selftests: Fix cosmetic copy-paste error in vm_mem_region_move() KVM: Fix out of range accesses to memslots KVM: X86: Micro-optimize IPI fastpath delay KVM: X86: Delay read msr data iff writes ICR MSR KVM: PPC: Book3S HV: Add a capability for enabling secure guests KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs KVM: arm64: GICv4.1: Allow non-trapping WFI when using HW SGIs ...
2020-04-03Merge branch 'next-integrity' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity Pull integrity updates from Mimi Zohar: "Just a couple of updates for linux-5.7: - A new Kconfig option to enable IMA architecture specific runtime policy rules needed for secure and/or trusted boot, as requested. - Some message cleanup (eg. pr_fmt, additional error messages)" * 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: ima: add a new CONFIG for loading arch-specific policies integrity: Remove duplicate pr_fmt definitions IMA: Add log statements for failure conditions IMA: Update KBUILD_MODNAME for IMA files to ima
2020-04-02Merge branch 'akpm' (patches from Andrew)Linus Torvalds4-32/+6
Merge updates from Andrew Morton: "A large amount of MM, plenty more to come. Subsystems affected by this patch series: - tools - kthread - kbuild - scripts - ocfs2 - vfs - mm: slub, kmemleak, pagecache, gup, swap, memcg, pagemap, mremap, sparsemem, kasan, pagealloc, vmscan, compaction, mempolicy, hugetlbfs, hugetlb" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (155 commits) include/linux/huge_mm.h: check PageTail in hpage_nr_pages even when !THP mm/hugetlb: fix build failure with HUGETLB_PAGE but not HUGEBTLBFS selftests/vm: fix map_hugetlb length used for testing read and write mm/hugetlb: remove unnecessary memory fetch in PageHeadHuge() mm/hugetlb.c: clean code by removing unnecessary initialization hugetlb_cgroup: add hugetlb_cgroup reservation docs hugetlb_cgroup: add hugetlb_cgroup reservation tests hugetlb: support file_region coalescing again hugetlb_cgroup: support noreserve mappings hugetlb_cgroup: add accounting for shared mappings hugetlb: disable region_add file_region coalescing hugetlb_cgroup: add reservation accounting for private mappings mm/hugetlb_cgroup: fix hugetlb_cgroup migration hugetlb_cgroup: add interface for charge/uncharge hugetlb reservations hugetlb_cgroup: add hugetlb_cgroup reservation counter hugetlbfs: Use i_mmap_rwsem to address page fault/truncate race hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization mm/memblock.c: remove redundant assignment to variable max_addr mm: mempolicy: require at least one nodeid for MPOL_PREFERRED mm: mempolicy: use VM_BUG_ON_VMA in queue_pages_test_walk() ...
2020-04-02mm/sparse: rename pfn_present() to pfn_in_present_section()Pingfan Liu1-1/+1
After introducing mem sub section concept, pfn_present() loses its literal meaning, and will not be necessary a truth on partial populated mem section. Since all of the callers use it to judge an absent section, it is better to rename pfn_present() as pfn_in_present_section(). Signed-off-by: Pingfan Liu <kernelfans@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Cc: Dan Williams <dan.j.williams@intel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Leonardo Bras <leonardo@linux.ibm.com> Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com> Cc: Nathan Lynch <nathanl@linux.ibm.com> Link: http://lkml.kernel.org/r/1581919110-29575-1-git-send-email-kernelfans@gmail.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02mm: allow VM_FAULT_RETRY for multiple timesPeter Xu1-6/+0
The idea comes from a discussion between Linus and Andrea [1]. Before this patch we only allow a page fault to retry once. We achieved this by clearing the FAULT_FLAG_ALLOW_RETRY flag when doing handle_mm_fault() the second time. This was majorly used to avoid unexpected starvation of the system by looping over forever to handle the page fault on a single page. However that should hardly happen, and after all for each code path to return a VM_FAULT_RETRY we'll first wait for a condition (during which time we should possibly yield the cpu) to happen before VM_FAULT_RETRY is really returned. This patch removes the restriction by keeping the FAULT_FLAG_ALLOW_RETRY flag when we receive VM_FAULT_RETRY. It means that the page fault handler now can retry the page fault for multiple times if necessary without the need to generate another page fault event. Meanwhile we still keep the FAULT_FLAG_TRIED flag so page fault handler can still identify whether a page fault is the first attempt or not. Then we'll have these combinations of fault flags (only considering ALLOW_RETRY flag and TRIED flag): - ALLOW_RETRY and !TRIED: this means the page fault allows to retry, and this is the first try - ALLOW_RETRY and TRIED: this means the page fault allows to retry, and this is not the first try - !ALLOW_RETRY and !TRIED: this means the page fault does not allow to retry at all - !ALLOW_RETRY and TRIED: this is forbidden and should never be used In existing code we have multiple places that has taken special care of the first condition above by checking against (fault_flags & FAULT_FLAG_ALLOW_RETRY). This patch introduces a simple helper to detect the first retry of a page fault by checking against both (fault_flags & FAULT_FLAG_ALLOW_RETRY) and !(fault_flag & FAULT_FLAG_TRIED) because now even the 2nd try will have the ALLOW_RETRY set, then use that helper in all existing special paths. One example is in __lock_page_or_retry(), now we'll drop the mmap_sem only in the first attempt of page fault and we'll keep it in follow up retries, so old locking behavior will be retained. This will be a nice enhancement for current code [2] at the same time a supporting material for the future userfaultfd-writeprotect work, since in that work there will always be an explicit userfault writeprotect retry for protected pages, and if that cannot resolve the page fault (e.g., when userfaultfd-writeprotect is used in conjunction with swapped pages) then we'll possibly need a 3rd retry of the page fault. It might also benefit other potential users who will have similar requirement like userfault write-protection. GUP code is not touched yet and will be covered in follow up patch. Please read the thread below for more information. [1] https://lore.kernel.org/lkml/20171102193644.GB22686@redhat.com/ [2] https://lore.kernel.org/lkml/20181230154648.GB9832@redhat.com/ Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Suggested-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Brian Geffon <bgeffon@google.com> Cc: Bobby Powers <bobbypowers@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Denis Plotnikov <dplotnikov@virtuozzo.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Martin Cracauer <cracauer@cons.org> Cc: Marty McFadden <mcfadden8@llnl.gov> Cc: Matthew Wilcox <willy@infradead.org> Cc: Maya Gokhale <gokhale2@llnl.gov> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Link: http://lkml.kernel.org/r/20200220160246.9790-1-peterx@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02mm: introduce FAULT_FLAG_DEFAULTPeter Xu1-1/+1
Although there're tons of arch-specific page fault handlers, most of them are still sharing the same initial value of the page fault flags. Say, merely all of the page fault handlers would allow the fault to be retried, and they also allow the fault to respond to SIGKILL. Let's define a default value for the fault flags to replace those initial page fault flags that were copied over. With this, it'll be far easier to introduce new fault flag that can be used by all the architectures instead of touching all the archs. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Brian Geffon <bgeffon@google.com> Reviewed-by: David Hildenbrand <david@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Bobby Powers <bobbypowers@gmail.com> Cc: Denis Plotnikov <dplotnikov@virtuozzo.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Martin Cracauer <cracauer@cons.org> Cc: Marty McFadden <mcfadden8@llnl.gov> Cc: Matthew Wilcox <willy@infradead.org> Cc: Maya Gokhale <gokhale2@llnl.gov> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Link: http://lkml.kernel.org/r/20200220160238.9694-1-peterx@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02powerpc/mm: use helper fault_signal_pending()Peter Xu1-8/+4
Let powerpc code to use the new helper, by moving the signal handling earlier before the retry logic. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Brian Geffon <bgeffon@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Bobby Powers <bobbypowers@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Denis Plotnikov <dplotnikov@virtuozzo.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Martin Cracauer <cracauer@cons.org> Cc: Marty McFadden <mcfadden8@llnl.gov> Cc: Matthew Wilcox <willy@infradead.org> Cc: Maya Gokhale <gokhale2@llnl.gov> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Link: http://lkml.kernel.org/r/20200220160222.9422-1-peterx@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02mm/vma: make vma_is_foreign() available for general useAnshuman Khandual1-12/+0
Idea of a foreign VMA with respect to the present context is very generic. But currently there are two identical definitions for this in powerpc and x86 platforms. Lets consolidate those redundant definitions while making vma_is_foreign() available for general use later. This should not cause any functional change. Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1582782965-3274-3-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02asm-generic: make more kernel-space headers mandatoryMasahiro Yamada1-4/+0
Change a header to mandatory-y if both of the following are met: [1] At least one architecture (except um) specifies it as generic-y in arch/*/include/asm/Kbuild [2] Every architecture (except um) either has its own implementation (arch/*/include/asm/*.h) or specifies it as generic-y in arch/*/include/asm/Kbuild This commit was generated by the following shell script. ----------------------------------->8----------------------------------- arches=$(cd arch; ls -1 | sed -e '/Kconfig/d' -e '/um/d') tmpfile=$(mktemp) grep "^mandatory-y +=" include/asm-generic/Kbuild > $tmpfile find arch -path 'arch/*/include/asm/Kbuild' | xargs sed -n 's/^generic-y += \(.*\)/\1/p' | sort -u | while read header do mandatory=yes for arch in $arches do if ! grep -q "generic-y += $header" arch/$arch/include/asm/Kbuild && ! [ -f arch/$arch/include/asm/$header ]; then mandatory=no break fi done if [ "$mandatory" = yes ]; then echo "mandatory-y += $header" >> $tmpfile for arch in $arches do sed -i "/generic-y += $header/d" arch/$arch/include/asm/Kbuild done fi done sed -i '/^mandatory-y +=/d' include/asm-generic/Kbuild LANG=C sort $tmpfile >> include/asm-generic/Kbuild ----------------------------------->8----------------------------------- One obvious benefit is the diff stat: 25 files changed, 52 insertions(+), 557 deletions(-) It is tedious to list generic-y for each arch that needs it. So, mandatory-y works like a fallback default (by just wrapping asm-generic one) when arch does not have a specific header implementation. See the following commits: def3f7cefe4e81c296090e1722a76551142c227c a1b39bae16a62ce4aae02d958224f19316d98b24 It is tedious to convert headers one by one, so I processed by a shell script. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Arnd Bergmann <arnd@arndb.de> Link: http://lkml.kernel.org/r/20200210175452.5030-1-masahiroy@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-02powerpc/perf: split callchain.c by bitnessMichal Suchanek5-356/+394
Building callchain.c with !COMPAT proved quite ugly with all the defines. Splitting out the 32bit and 64bit parts looks better. No code change intended. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/a20027bf1074935a7934ee2a6757c99ea047e70d.1584699455.git.msuchanek@suse.de
2020-04-02powerpc/64: Make COMPAT user-selectable disabled on littleendian by default.Michal Suchanek1-2/+3
On bigendian ppc64 it is common to have 32bit legacy binaries but much less so on littleendian. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/41393d6e895b0d3a47ee62f8f51e1cf888ad6226.1584699455.git.msuchanek@suse.de
2020-04-02powerpc/64: make buildable without CONFIG_COMPATMichal Suchanek8-13/+20
There are numerous references to 32bit functions in generic and 64bit code so ifdef them out. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/e5619617020ef3a1f54f0c076e7d74cb9ec9f3bf.1584699455.git.msuchanek@suse.de
2020-04-02powerpc/perf: consolidate valid_user_sp -> invalid_user_spMichal Suchanek1-16/+10
Merge the 32bit and 64bit version. Halve the check constants on 32bit. Use STACK_TOP since it is defined. Passing is_64 is now redundant since is_32bit_task() is used to determine which callchain variant should be used. Use STACK_TOP and is_32bit_task() directly. This removes a page from the valid 32bit area on 64bit: #define TASK_SIZE_USER32 (0x0000000100000000UL - (1 * PAGE_SIZE)) #define STACK_TOP_USER32 TASK_SIZE_USER32 Change return value to bool. It is inverted by users anyway. Change to invalid_user_sp to avoid inverting the return value twice. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/be8e40fc0737fb28ad08b198552dee7cac1c5ce2.1584699455.git.msuchanek@suse.de
2020-04-02powerpc/perf: consolidate read_user_stack_32Michal Suchanek1-24/+24
There are two almost identical copies for 32bit and 64bit. The function is used only in 32bit code which will be split out in next patch so consolidate to one function. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/0c21c919ed1296420199c78f7c3cfd29d3c7e909.1584699455.git.msuchanek@suse.de
2020-04-02powerpc: move common register copy functions from signal_32.c to signal.cMichal Suchanek2-140/+141
These functions are required for 64bit as well. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/9fd6d9b7c5e91fab21159fe23534a2f16b4962d3.1584699455.git.msuchanek@suse.de
2020-04-02powerpc: Add back __ARCH_WANT_SYS_LLSEEK macroMichal Suchanek1-0/+1
This partially reverts commit caf6f9c8a326 ("asm-generic: Remove unneeded __ARCH_WANT_SYS_LLSEEK macro") When CONFIG_COMPAT is disabled on ppc64 the kernel does not build. There is resistance to both removing the llseek syscall from the 64bit syscall tables and building the llseek interface unconditionally. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/lkml/20190828151552.GA16855@infradead.org/ Link: https://lore.kernel.org/lkml/20190829214319.498c7de2@naga/ Link: https://lore.kernel.org/r/dd4575c51e31766e87f7e7fa121d099ab78d3290.1584699455.git.msuchanek@suse.de
2020-04-02powerpc/ps3: Set CONFIG_UEVENT_HELPER=y in ps3_defconfigGeoff Levand1-0/+2
Set CONFIG_UEVENT_HELPER=y in ps3_defconfig. commit 1be01d4a57142ded23bdb9e0c8d9369e693b26cc (driver: base: Disable CONFIG_UEVENT_HELPER by default) disabled the CONFIG_UEVENT_HELPER option that is needed for hotplug and module loading by most older 32bit powerpc distributions that users typically install on the PS3. Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/410cda9aa1a6e04434dfe1f9aa2103d0694f706c.1585340156.git.geoff@infradead.org
2020-04-02powerpc/ps3: Remove duplicate error messageMarkus Elfring1-3/+1
Remove a duplicate memory allocation failure error message. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1bc5a16a22c487c478a204ebb7b80a22d2ad9cd0.1585340156.git.geoff@infradead.org
2020-04-02powerpc/powernv: Re-enable imc trace-mode in kernelAnju T Sudhakar1-8/+1
commit <249fad734a25> ""powerpc/perf: Disable trace_imc pmu" disables IMC(In-Memory Collection) trace-mode in kernel, since frequent mode switching between accumulation mode and trace mode via the spr LDBAR in the hardware can trigger a checkstop(system crash). Patch to re-enable imc-trace mode in kernel. The previous patch(1/2) in this series will address the mode switching issue by implementing a global lock, and will restrict the usage of accumulation and trace-mode at a time. Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200313055238.8656-2-anju@linux.vnet.ibm.com
2020-04-02powerpc/perf: Implement a global lock to avoid races between trace, core and ↵Anju T Sudhakar1-24/+149
thread imc events. IMC(In-memory Collection Counters) does performance monitoring in two different modes, i.e accumulation mode(core-imc and thread-imc events), and trace mode(trace-imc events). A cpu thread can either be in accumulation-mode or trace-mode at a time and this is done via the LDBAR register in POWER architecture. The current design does not address the races between thread-imc and trace-imc events. Patch implements a global id and lock to avoid the races between core, trace and thread imc events. With this global id-lock implementation, the system can either run core, thread or trace imc events at a time. i.e. to run any core-imc events, thread/trace imc events should not be enabled/monitored. Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200313055238.8656-1-anju@linux.vnet.ibm.com
2020-04-02powerpc/pseries: Fix MCE handling on pseriesGanesh Goudar1-0/+11
MCE handling on pSeries platform fails as recent rework to use common code for pSeries and PowerNV in machine check error handling tries to access per-cpu variables in realmode. The per-cpu variables may be outside the RMO region on pSeries platform and needs translation to be enabled for access. Just moving these per-cpu variable into RMO region did'nt help because we queue some work to workqueues in real mode, which again tries to touch per-cpu variables. Also fwnmi_release_errinfo() cannot be called when translation is not enabled. This patch fixes this by enabling translation in the exception handler when all required real mode handling is done. This change only affects the pSeries platform. Without this fix below kernel crash is seen on injecting SLB multihit: BUG: Unable to handle kernel data access on read at 0xc00000027b205950 Faulting instruction address: 0xc00000000003b7e0 Oops: Kernel access of bad area, sig: 11 [#1] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries Modules linked in: mcetest_slb(OE+) af_packet(E) xt_tcpudp(E) ip6t_rpfilter(E) ip6t_REJECT(E) ipt_REJECT(E) xt_conntrack(E) ip_set(E) nfnetlink(E) ebtable_nat(E) ebtable_broute(E) ip6table_nat(E) ip6table_mangle(E) ip6table_raw(E) ip6table_security(E) iptable_nat(E) nf_nat(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E) iptable_mangle(E) iptable_raw(E) iptable_security(E) ebtable_filter(E) ebtables(E) ip6table_filter(E) ip6_tables(E) iptable_filter(E) ip_tables(E) x_tables(E) xfs(E) ibmveth(E) vmx_crypto(E) gf128mul(E) uio_pdrv_genirq(E) uio(E) crct10dif_vpmsum(E) rtc_generic(E) btrfs(E) libcrc32c(E) xor(E) zstd_decompress(E) zstd_compress(E) raid6_pq(E) sr_mod(E) sd_mod(E) cdrom(E) ibmvscsi(E) scsi_transport_srp(E) crc32c_vpmsum(E) dm_mod(E) sg(E) scsi_mod(E) CPU: 34 PID: 8154 Comm: insmod Kdump: loaded Tainted: G OE 5.5.0-mahesh #1 NIP: c00000000003b7e0 LR: c0000000000f2218 CTR: 0000000000000000 REGS: c000000007dcb960 TRAP: 0300 Tainted: G OE (5.5.0-mahesh) MSR: 8000000000001003 <SF,ME,RI,LE> CR: 28002428 XER: 20040000 CFAR: c0000000000f2214 DAR: c00000027b205950 DSISR: 40000000 IRQMASK: 0 GPR00: c0000000000f2218 c000000007dcbbf0 c000000001544800 c000000007dcbd70 GPR04: 0000000000000001 c000000007dcbc98 c008000000d00258 c0080000011c0000 GPR08: 0000000000000000 0000000300000003 c000000001035950 0000000003000048 GPR12: 000000027a1d0000 c000000007f9c000 0000000000000558 0000000000000000 GPR16: 0000000000000540 c008000001110000 c008000001110540 0000000000000000 GPR20: c00000000022af10 c00000025480fd70 c008000001280000 c00000004bfbb300 GPR24: c000000001442330 c00800000800000d c008000008000000 4009287a77000510 GPR28: 0000000000000000 0000000000000002 c000000001033d30 0000000000000001 NIP [c00000000003b7e0] save_mce_event+0x30/0x240 LR [c0000000000f2218] pseries_machine_check_realmode+0x2c8/0x4f0 Call Trace: Instruction dump: 3c4c0151 38429050 7c0802a6 60000000 fbc1fff0 fbe1fff8 f821ffd1 3d42ffaf 3fc2ffaf e98d0030 394a1150 3bdef530 <7d6a62aa> 1d2b0048 2f8b0063 380b0001 ---[ end trace 46fd63f36bbdd940 ]--- Fixes: 9ca766f9891d ("powerpc/64s/pseries: machine check convert to use common event code") Reviewed-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200320110119.10207-1-ganeshgr@linux.ibm.com
2020-04-02powerpc/64s: Fix doorbell wakeup msgclr optimisationNicholas Piggin2-19/+13
Commit 3282a3da25bd ("powerpc/64: Implement soft interrupt replay in C") broke the doorbell wakeup optimisation introduced by commit a9af97aa0a12 ("powerpc/64s: msgclr when handling doorbell exceptions from system reset"). This patch restores the msgclr, in C code. It's now done in the system reset wakeup path rather than doorbell interrupt replay where it used to be, because it is always the right thing to do in the wakeup case, but it may be rarely of use in other interrupt replay situations in which case it's wasted work - we would have to run measurements to see if that was a worthwhile optimisation, and I suspect it would not be. The results are similar to those in the original commit, test on POWER8 of context_switch selftests benchmark with polling idle disabled (e.g., always nap, giving cross-CPU IPIs) gives the following results: broken patched Different threads, same core: 317k/s 375k/s +18.7% Different cores: 280k/s 282k/s +1.0% Fixes: 3282a3da25bd ("powerpc/64: Implement soft interrupt replay in C") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200402121212.1118218-1-npiggin@gmail.com
2020-04-02Merge tag 'for-linus-hmm' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull hmm updates from Jason Gunthorpe: "This series focuses on corner case bug fixes and general clarity improvements to hmm_range_fault(). It arose from a review of hmm_range_fault() by Christoph, Ralph and myself. hmm_range_fault() is being used by these 'SVM' style drivers to non-destructively read the page tables. It is very similar to get_user_pages() except that the output is an array of PFNs and per-pfn flags, and it has various modes of reading. This is necessary before RDMA ODP can be converted, as we don't want to have weird corner case regressions, which is still a looking forward item. Ralph has a nice tester for this routine, but it is waiting for feedback from the selftests maintainers. Summary: - 9 bug fixes - Allow pgmap to track the 'owner' of a DEVICE_PRIVATE - in this case the owner tells the driver if it can understand the DEVICE_PRIVATE page or not. Use this to resolve a bug in nouveau where it could touch DEVICE_PRIVATE pages from other drivers. - Remove a bunch of dead, redundant or unused code and flags - Clarity improvements to hmm_range_fault()" * tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (25 commits) mm/hmm: return error for non-vma snapshots mm/hmm: do not set pfns when returning an error code mm/hmm: do not unconditionally set pfns when returning EBUSY mm/hmm: use device_private_entry_to_pfn() mm/hmm: remove HMM_FAULT_SNAPSHOT mm/hmm: remove unused code and tidy comments mm/hmm: return the fault type from hmm_pte_need_fault() mm/hmm: remove pgmap checking for devmap pages mm/hmm: check the device private page owner in hmm_range_fault() mm: simplify device private page handling in hmm_range_fault mm: handle multiple owners of device private pages in migrate_vma memremap: add an owner field to struct dev_pagemap mm: merge hmm_vma_do_fault into into hmm_vma_walk_hole_ mm/hmm: don't handle the non-fault case in hmm_vma_walk_hole_() mm/hmm: simplify hmm_vma_walk_hugetlb_entry() mm/hmm: remove the unused HMM_FAULT_ALLOW_RETRY flag mm/hmm: don't provide a stub for hmm_range_fault() mm/hmm: do not check pmd_protnone twice in hmm_vma_handle_pmd() mm/hmm: add missing call to hmm_pte_need_fault in HMM_PFN_SPECIAL handling mm/hmm: return -EFAULT when setting HMM_PFN_ERROR on requested valid pages ...
2020-04-01vhost: refine vhost and vringh kconfigJason Wang1-2/+0
Currently, CONFIG_VHOST depends on CONFIG_VIRTUALIZATION. But vhost is not necessarily for VM since it's a generic userspace and kernel communication protocol. Such dependency may prevent archs without virtualization support from using vhost. To solve this, a dedicated vhost menu is created under drivers so CONIFG_VHOST can be decoupled out of CONFIG_VIRTUALIZATION. While at it, also squash Kconfig.vringh into vhost Kconfig file. This avoids the trick of conditional inclusion from VOP or CAIF. Then it will be easier to introduce new vringh users and common dependency for both vringh and vhost. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20200326140125.19794-2-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-04-01powerpc: Make setjmp/longjmp signature standardClement Courbet3-8/+4
Declaring setjmp()/longjmp() as taking longs makes the signature non-standard, and makes clang complain. In the past, this has been worked around by adding -ffreestanding to the compile flags. The implementation looks like it only ever propagates the value (in longjmp) or sets it to 1 (in setjmp), and we only call longjmp with integer parameters. This allows removing -ffreestanding from the compilation flags. Fixes: c9029ef9c957 ("powerpc: Avoid clang warnings around setjmp and longjmp") Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Clement Courbet <courbet@google.com> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Tested-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200330080400.124803-1-courbet@google.com
2020-04-01powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_typeLeonardo Bras1-1/+0
Before checking for cpu_type == NULL, this same copy happens, so doing it here will just write the same value to the t->oprofile_type again. Remove the repeated copy, as it is unnecessary. Signed-off-by: Leonardo Bras <leonardo@linux.ibm.com> Reviewed-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200215053637.280880-1-leonardo@linux.ibm.com
2020-04-01powerpc: Suppress .eh_frame generationNaveen N. Rao1-0/+3
GCC v8 defaults to enabling -fasynchronous-unwind-tables due to https://gcc.gnu.org/r259298, which results in .eh_frame section being generated. This results in additional disk usage by the build, as well as the kernel modules. Since the kernel has no use for this, this section is discarded. Add -fno-asynchronous-unwind-tables to KBUILD_CFLAGS to suppress generation of .eh_frame section. Note that our VDSOs need .eh_frame, but are not affected by this change since our VDSO code are all in assembly. Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1ed7cd84a7d1a3180b30c0c60e70eed8bb8b40c3.1583415544.git.naveen.n.rao@linux.vnet.ibm.com
2020-04-01powerpc: Drop -fno-dwarf2-cfi-asmNaveen N. Rao1-5/+0
The original commit/discussion adding -fno-dwarf2-cfi-asm refers to R_PPC64_REL32 relocations not being handled by our module loader: http://lkml.kernel.org/r/20090224065112.GA6690@bombadil.infradead.org However, that is now handled thanks to commit 9f751b82b491d ("powerpc/module: Add support for R_PPC64_REL32 relocations"). So, drop this flag from our Makefile. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/9b22a064de6eb1301d92177eb3a38559df7005d3.1583415544.git.naveen.n.rao@linux.vnet.ibm.com
2020-04-01powerpc/32: drop unused ISA_DMA_THRESHOLDMike Rapoport7-10/+1
The ISA_DMA_THRESHOLD variable is set by several platforms but never referenced. Remove it. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191125092033.20014-1-rppt@kernel.org
2020-04-01powerpc/vmlinux.lds: Explicitly retain .gnu.hashMichael Ellerman1-0/+1
Relocatable kernel builds produce a warning about .gnu.hash being an orphan section: ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash' If we try to discard it the build fails: ld -EL -m elf64lppc -pie --orphan-handling=warn --build-id -o .tmp_vmlinux1 -T ./arch/powerpc/kernel/vmlinux.lds --whole-archive arch/powerpc/kernel/head_64.o arch/powerpc/kernel/entry_64.o ... sound/built-in.a net/built-in.a virt/built-in.a --no-whole-archive --start-group lib/lib.a --end-group ld: could not find section .gnu.hash So add an entry to explicitly retain it, as we do for .hash. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200227045933.22967-1-mpe@ellerman.id.au
2020-04-01powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.cChristophe Leroy2-19/+16
ptrace_triggered() is declared in asm/hw_breakpoint.h and only needed when CONFIG_HW_BREAKPOINT is set, so move it into hw_breakpoint.c Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/8402c516023da1371953a65af7df2008758ea0c4.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: create ppc_gethwdinfo()Christophe Leroy4-31/+37
Create ippc_gethwdinfo() to handle PPC_PTRACE_GETHWDBGINFO and reduce ifdef mess Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/82fefcc1ec75b96cece792878217a5d85ecda0c2.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: create ptrace_get_debugreg()Christophe Leroy4-16/+26
Create ptrace_get_debugreg() to handle PTRACE_GET_DEBUGREG and reduce ifdef mess Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/c1482c41a39cc216f4073a51070d8680f52d5054.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: split out ADV_DEBUG_REGS related functions.Christophe Leroy5-650/+709
Move ADV_DEBUG_REGS functions out of ptrace.c, into ptrace-adv.c and ptrace-noadv.c Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> [mpe: Squash in fixup patch from Christophe] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/e2bd7d275bd5933d848aad4fee3ca652a14d039b.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: move register viewing functions out of ptrace.cChristophe Leroy4-968/+949
Create a dedicated ptrace-view.c file. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/bfd8c3ed57c9057e4a5d3816737b5ee98c6f7e43.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: split out TRANSACTIONAL_MEM related functions.Christophe Leroy4-914/+943
Move TRANSACTIONAL_MEM functions out of ptrace.c, into ptrace-tm.c Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/2d0ef3bb2610c0344bd42252c7134f429818c000.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: split out SPE related functions.Christophe Leroy4-66/+78
Move CONFIG_SPE functions out of ptrace.c, into ptrace-spe.c Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/0f17a331760310b5562fae3791cdd3cf9c64237b.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: split out ALTIVEC related functions.Christophe Leroy4-124/+138
Move CONFIG_ALTIVEC functions out of ptrace.c, into ptrace-altivec.c Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/35dae891d01c817fca0fd6ab406a3a2c7bf07f60.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: split out VSX related functions.Christophe Leroy5-172/+241
Move CONFIG_VSX functions out of ptrace.c, into ptrace-vsx.c and ptrace-novsx.c Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/dc8e20c8c95b7e83add0c6dd48f9470628896c5c.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSETChristophe Leroy1-10/+0
PARAMETER_SAVE_AREA_OFFSET is not used, drop it. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/6dac2b49207647f75cbf0e6771a545e691f0fd93.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64Christophe Leroy2-15/+5
Drop a bunch of #ifdefs CONFIG_PPC64 that are not vital. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/af38b87a7e1e3efe4f9b664eaeb029e6e7d69fdb.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc/ptrace: remove unused header includesChristophe Leroy2-28/+2
Remove unused header includes in ptrace.c and ptrace32.c Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/6276df0be87a4329c2bb46b3b0f02059ae9e70e6.1582848567.git.christophe.leroy@c-s.fr
2020-04-01powerpc: Move ptrace into a subdirectory.Christophe Leroy4-5/+12
In order to allow splitting of ptrace depending on the different CONFIG_ options, create a subdirectory dedicated to ptrace and move ptrace.c and ptrace32.c into it. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/9ebcbe37834e9d447dd97f4381084795a673260c.1582848567.git.christophe.leroy@c-s.fr
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-20 06:20:17 +0300