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2017-08-11ARM64: dts: rockchip: Enable gmac2phy for rk3328-evbDavid Wu
Enable the gmac2phy, make the gmac2phy work on the rk3328-evb board. Signed-off-by: David Wu <david.wu@rock-chips.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-11ARM64: dts: rockchip: Add gmac2phy node support for rk3328David Wu
The gmac2phy controller of rk3328 is connected to integrated PHY directly inside, add the node for the integrated PHY support. Signed-off-by: David Wu <david.wu@rock-chips.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-11ARM: dts: rk3228-evb: Enable the integrated PHY for gmacDavid Wu
This patch enables the integrated PHY for rk3228 evb board by default. To use the external 1000M PHY on evb board, need to make some switch of evb board to be on. Signed-off-by: David Wu <david.wu@rock-chips.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-11arm64: defconfig: Enable CONFIG_ROCKCHIP_PHYDavid Wu
Make the rockchip PHY driver built into the kernel. Signed-off-by: David Wu <david.wu@rock-chips.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-11multi_v7_defconfig: Make rockchip PHY built-inDavid Wu
Enable the rockchip PHY driver for multi_v7_defconfig builds. Signed-off-by: David Wu <david.wu@rock-chips.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-11kvm: x86: Disallow illegal IA32_APIC_BASE MSR valuesJim Mattson
Host-initiated writes to the IA32_APIC_BASE MSR do not have to follow local APIC state transition constraints, but the value written must be valid. Signed-off-by: Jim Mattson <jmattson@google.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-08-11KVM: MMU: Bail out immediately if there is no available mmu pageWanpeng Li
Bailing out immediately if there is no available mmu page to alloc. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-08-11KVM: MMU: Fix softlockup due to mmu_lock is held too longWanpeng Li
watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [warn_test:3089] irq event stamp: 20532 hardirqs last enabled at (20531): [<ffffffff8e9b6908>] restore_regs_and_iret+0x0/0x1d hardirqs last disabled at (20532): [<ffffffff8e9b7ae8>] apic_timer_interrupt+0x98/0xb0 softirqs last enabled at (8266): [<ffffffff8e9badc6>] __do_softirq+0x206/0x4c1 softirqs last disabled at (8253): [<ffffffff8e083918>] irq_exit+0xf8/0x100 CPU: 5 PID: 3089 Comm: warn_test Tainted: G OE 4.13.0-rc3+ #8 RIP: 0010:kvm_mmu_prepare_zap_page+0x72/0x4b0 [kvm] Call Trace: make_mmu_pages_available.isra.120+0x71/0xc0 [kvm] kvm_mmu_load+0x1cf/0x410 [kvm] kvm_arch_vcpu_ioctl_run+0x1316/0x1bf0 [kvm] kvm_vcpu_ioctl+0x340/0x700 [kvm] ? kvm_vcpu_ioctl+0x340/0x700 [kvm] ? __fget+0xfc/0x210 do_vfs_ioctl+0xa4/0x6a0 ? __fget+0x11d/0x210 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x23/0xc2 ? __this_cpu_preempt_check+0x13/0x20 This can be reproduced readily by ept=N and running syzkaller tests since many syzkaller testcases don't setup any memory regions. However, if ept=Y rmode identity map will be created, then kvm_mmu_calculate_mmu_pages() will extend the number of VM's mmu pages to at least KVM_MIN_ALLOC_MMU_PAGES which just hide the issue. I saw the scenario kvm->arch.n_max_mmu_pages == 0 && kvm->arch.n_used_mmu_pages == 1, so there is one active mmu page on the list, kvm_mmu_prepare_zap_page() fails to zap any pages, however prepare_zap_oldest_mmu_page() always returns true. It incurs infinite loop in make_mmu_pages_available() which causes mmu->lock softlockup. This patch fixes it by setting the return value of prepare_zap_oldest_mmu_page() according to whether or not there is mmu page zapped. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-08-11KVM: nVMX: validate eptp pointerDavid Hildenbrand
Let's reuse the function introduced with eptp switching. We don't explicitly have to check against enable_ept_ad_bits, as this is implicitly done when checking against nested_vmx_ept_caps in valid_ept_address(). Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-08-11Merge tag 'powerpc-4.13-6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "All fixes for code that went in this cycle. - a revert of an optimisation to the syscall exit path, which could lead to an oops on either older machines or machines with > 1TB of memory - disable some deep idle states if the firmware configuration for them fails - re-enable HARD/SOFT lockup detectors in defconfigs after a Kconfig change - six fairly small patches fixing bugs in our new watchdog code Thanks to: Gautham R Shenoy, Nicholas Piggin" * tag 'powerpc-4.13-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/watchdog: add locking around init/exit functions powerpc/watchdog: Fix marking of stuck CPUs powerpc/watchdog: Fix final-check recovered case powerpc/watchdog: Moderate touch_nmi_watchdog overhead powerpc/watchdog: Improve watchdog lock primitive powerpc: NMI IPI improve lock primitive powerpc/configs: Re-enable HARD/SOFT lockup detectors powerpc/powernv/idle: Disable LOSE_FULL_CONTEXT states when stop-api fails Revert "powerpc/64: Avoid restore_math call if possible in syscall exit"
2017-08-11arm64: dts: rockchip: Enable tsadc module on RK3328 eavluation boardRocky Hao
enable tsadc module on RK3328 eavluation board Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-11arm64: dts: rockchip: add thermal nodes for rk3328 SoCRocky Hao
add thermal zone and dynamic CPU power coefficients for rk3328 Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-11arm64: dts: rockchip: add tsadc node for rk3328 SoCRocky Hao
add tsadc needed main information for rk3328 SoC. 50000Hz is the max clock rate supported by tsadc module. Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-11clocksource/drivers/arm_arch_timer: Avoid infinite recursion when ftrace is ↵Ding Tianhong
enabled On platforms with an arch timer erratum workaround, it's possible for arch_timer_reg_read_stable() to recurse into itself when certain tracing options are enabled, leading to stack overflows and related problems. For example, when PREEMPT_TRACER and FUNCTION_GRAPH_TRACER are selected, it's possible to trigger this with: $ mount -t debugfs nodev /sys/kernel/debug/ $ echo function_graph > /sys/kernel/debug/tracing/current_tracer The problem is that in such cases, preempt_disable() instrumentation attempts to acquire a timestamp via trace_clock(), resulting in a call back to arch_timer_reg_read_stable(), and hence recursion. This patch changes arch_timer_reg_read_stable() to use preempt_{disable,enable}_notrace(), which avoids this. This problem is similar to the fixed by upstream commit 96b3d28bf4 ("sched/clock: Prevent tracing recursion in sched_clock_cpu()"). Fixes: 6acc71ccac71 ("arm64: arch_timer: Allows a CPU-specific erratum to only affect a subset of CPUs") Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-08-11xen: fix hvm guest with kaslr enabledJuergen Gross
A Xen HVM guest running with KASLR enabled will die rather soon today because the shared info page mapping is using va() too early. This was introduced by commit a5d5f328b0e2baa5ee7c119fd66324eb79eeeb66 ("xen: allocate page for shared info page from low memory"). In order to fix this use early_memremap() to get a temporary virtual address for shared info until va() can be used safely. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Juergen Gross <jgross@suse.com>
2017-08-11xen: split up xen_hvm_init_shared_info()Juergen Gross
Instead of calling xen_hvm_init_shared_info() on boot and resume split it up into a boot time function searching for the pfn to use and a mapping function doing the hypervisor mapping call. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Juergen Gross <jgross@suse.com>
2017-08-11x86: provide an init_mem_mapping hypervisor hookJuergen Gross
Provide a hook in hypervisor_x86 called after setting up initial memory mapping. This is needed e.g. by Xen HVM guests to map the hypervisor shared info page. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Juergen Gross <jgross@suse.com>
2017-08-11x86/cpu/amd: Hide unused legacy_fixup_core_id() functionArnd Bergmann
The newly introduced function is only used when CONFIG_SMP is set: arch/x86/kernel/cpu/amd.c:305:13: warning: 'legacy_fixup_core_id' defined but not used This moves the existing #ifdef around the caller so it covers legacy_fixup_core_id() as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@suse.de> Cc: Emanuel Czirai <icanrealizeum@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Yazen Ghannam <Yazen.Ghannam@amd.com> Fixes: b89b41d0b841 ("x86/cpu/amd: Limit cpu_core_id fixup to families older than F17h") Link: http://lkml.kernel.org/r/20170811111937.2006128-1-arnd@arndb.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-11x86: Mark various structures and functions as 'static'Colin Ian King
Mark a couple of structures and functions as 'static', pointed out by Sparse: warning: symbol 'bts_pmu' was not declared. Should it be static? warning: symbol 'p4_event_aliases' was not declared. Should it be static? warning: symbol 'rapl_attr_groups' was not declared. Should it be static? symbol 'process_uv2_message' was not declared. Should it be static? Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Andrew Banman <abanman@hpe.com> # for the UV change Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: kernel-janitors@vger.kernel.org Link: http://lkml.kernel.org/r/20170810155709.7094-1-colin.king@canonical.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-11Merge branch 'linus' into locking/core, to resolve conflictsIngo Molnar
Conflicts: include/linux/mm_types.h mm/huge_memory.c I removed the smp_mb__before_spinlock() like the following commit does: 8b1b436dd1cc ("mm, locking: Rework {set,clear,mm}_tlb_flush_pending()") and fixed up the affected commits. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-11x86/cpufeature, kvm/svm: Rename (shorten) the new "virtualized ↵Borislav Petkov
VMSAVE/VMLOAD" CPUID flag "virtual_vmload_vmsave" is what is going to land in /proc/cpuinfo now as per v4.13-rc4, for a single feature bit which is clearly too long. So rename it to what it is called in the processor manual. "v_vmsave_vmload" is a bit shorter, after all. We could go more aggressively here but having it the same as in the processor manual is advantageous. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Radim Krčmář <rkrcmar@redhat.com> Cc: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com> Cc: Jörg Rödel <joro@8bytes.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kvm-ML <kvm@vger.kernel.org> Link: http://lkml.kernel.org/r/20170801185552.GA3743@nazgul.tnic Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-11arc: Mask individual IRQ lines during core INTC initAlexey Brodkin
ARC cores on reset have all interrupt lines of built-in INTC enabled. Which means once we globally enable interrupts (very early on boot) faulty hardware blocks may trigger an interrupt that Linux kernel cannot handle yet as corresponding handler is not yet installed. In that case system falls in "interrupt storm" and basically never does anything useful except entering and exiting generic IRQ handling code. One real example of that kind of problematic hardware is DW GMAC which also has interrupts enabled on reset and if Ethernet PHY informs GMAC about link state, GMAC immediately reports that upstream to ARC core and here we are. Now with that change we mask all individual IRQ lines making entire system more fool-proof. [This patch was motivated by Adaptrum platform support] Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Eugeniy Paltsev <paltsev@synopsys.com> Tested-by: Alexandru Gagniuc <alex.g@adaptrum.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-11PM / s2idle: Rename ->enter_freeze to ->enter_s2idleRafael J. Wysocki
Rename the ->enter_freeze cpuidle driver callback to ->enter_s2idle to make it clear that it is used for entering suspend-to-idle and rename the related functions, variables and so on accordingly. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-11cpufreq: x86: Disable interrupts during MSRs readingDoug Smythies
According to Intel 64 and IA-32 Architectures SDM, Volume 3, Chapter 14.2, "Software needs to exercise care to avoid delays between the two RDMSRs (for example interrupts)". So, disable interrupts during reading MSRs IA32_APERF and IA32_MPERF. See also: commit 4ab60c3f32c7 (cpufreq: intel_pstate: Disable interrupts during MSRs reading). Signed-off-by: Doug Smythies <dsmythies@telus.net> Reviewed-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-10mm: fix MADV_[FREE|DONTNEED] TLB flush miss problemMinchan Kim
Nadav reported parallel MADV_DONTNEED on same range has a stale TLB problem and Mel fixed it[1] and found same problem on MADV_FREE[2]. Quote from Mel Gorman: "The race in question is CPU 0 running madv_free and updating some PTEs while CPU 1 is also running madv_free and looking at the same PTEs. CPU 1 may have writable TLB entries for a page but fail the pte_dirty check (because CPU 0 has updated it already) and potentially fail to flush. Hence, when madv_free on CPU 1 returns, there are still potentially writable TLB entries and the underlying PTE is still present so that a subsequent write does not necessarily propagate the dirty bit to the underlying PTE any more. Reclaim at some unknown time at the future may then see that the PTE is still clean and discard the page even though a write has happened in the meantime. I think this is possible but I could have missed some protection in madv_free that prevents it happening." This patch aims for solving both problems all at once and is ready for other problem with KSM, MADV_FREE and soft-dirty story[3]. TLB batch API(tlb_[gather|finish]_mmu] uses [inc|dec]_tlb_flush_pending and mmu_tlb_flush_pending so that when tlb_finish_mmu is called, we can catch there are parallel threads going on. In that case, forcefully, flush TLB to prevent for user to access memory via stale TLB entry although it fail to gather page table entry. I confirmed this patch works with [4] test program Nadav gave so this patch supersedes "mm: Always flush VMA ranges affected by zap_page_range v2" in current mmotm. NOTE: This patch modifies arch-specific TLB gathering interface(x86, ia64, s390, sh, um). It seems most of architecture are straightforward but s390 need to be careful because tlb_flush_mmu works only if mm->context.flush_mm is set to non-zero which happens only a pte entry really is cleared by ptep_get_and_clear and friends. However, this problem never changes the pte entries but need to flush to prevent memory access from stale tlb. [1] http://lkml.kernel.org/r/20170725101230.5v7gvnjmcnkzzql3@techsingularity.net [2] http://lkml.kernel.org/r/20170725100722.2dxnmgypmwnrfawp@suse.de [3] http://lkml.kernel.org/r/BD3A0EBE-ECF4-41D4-87FA-C755EA9AB6BD@gmail.com [4] https://patchwork.kernel.org/patch/9861621/ [minchan@kernel.org: decrease tlb flush pending count in tlb_finish_mmu] Link: http://lkml.kernel.org/r/20170808080821.GA31730@bbox Link: http://lkml.kernel.org/r/20170802000818.4760-7-namit@vmware.com Signed-off-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Nadav Amit <namit@vmware.com> Reported-by: Nadav Amit <namit@vmware.com> Reported-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Mel Gorman <mgorman@techsingularity.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Jeff Dike <jdike@addtoit.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Nadav Amit <nadav.amit@gmail.com> Cc: Rik van Riel <riel@redhat.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-08-10mm: refactor TLB gathering APIMinchan Kim
This patch is a preparatory patch for solving race problems caused by TLB batch. For that, we will increase/decrease TLB flush pending count of mm_struct whenever tlb_[gather|finish]_mmu is called. Before making it simple, this patch separates architecture specific part and rename it to arch_tlb_[gather|finish]_mmu and generic part just calls it. It shouldn't change any behavior. Link: http://lkml.kernel.org/r/20170802000818.4760-5-namit@vmware.com Signed-off-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Nadav Amit <namit@vmware.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Jeff Dike <jdike@addtoit.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Nadav Amit <nadav.amit@gmail.com> Cc: Rik van Riel <riel@redhat.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-08-10mm: add pmd_t initializer __pmd() to work around a GCC bug.Zi Yan
THP migration is added but only supports x86_64 at the moment. For all other architectures, swp_entry_to_pmd() only returns a zero pmd_t. Due to a GCC zero initializer bug #53119, the standard (pmd_t){0} initializer is not accepted by all GCC versions. __pmd() is a feasible workaround. In addition, sparc32's pmd_t is an array instead of a single value, so we need (pmd_t){ {0}, } instead of (pmd_t){0}. Thus, a different __pmd() definition is needed in sparc32. Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10arch/sparc: Add accurate exception reporting in M7memcpyBabu Moger
Add accurate exception reporting in M7memcpy Signed-off-by: Babu Moger <babu.moger@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10arch/sparc: Optimized memcpy, memset, copy_to_user, copy_from_user for M7/M8Babu Moger
New algorithm that takes advantage of the M7/M8 block init store ASI, ie, overlapping pipelines and miss buffer filling. Full details in code comments. Signed-off-by: Babu Moger <babu.moger@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10arch/sparc: Rename exception handlersBabu Moger
Rename exception handlers to memcpy_xxx as these are going to be used by new memcpy routines and these handlers are not exclusive to NG4memcpy anymore. Signed-off-by: Babu Moger <babu.moger@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10arch/sparc: Separate the exception handlers from NG4memcpyBabu Moger
Separate the exception handlers from NG4memcpy so that it can be used with new memcpy routines. Make a separate file for all these handlers. Signed-off-by: Babu Moger <babu.moger@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10sparc64: update comments in U3memcpySam Ravnborg
Update comments about the range the different parts of the code copies, the original comments were wrong. Introduce a few descriptive labels too. No functional changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10microblaze/PCI: Remove pcibios_setup_bus_{self/devices} dead codeLorenzo Pieralisi
01cf9d524ff0 ("microblaze/PCI: Support generic Xilinx AXI PCIe Host Bridge IP driver") removed pcibios calls to: pcibios_setup_bus_self() pcibios_setup_bus_devices() Given that pcibios_fixup_bus() was the only caller of those functions they have now become dead code (along with the functions they were calling in turn), so they can be removed. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> [bhelgaas: remove "Fixup resources of a PCI<->PCI bridge" comment] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Cc: Bharat Kumar Gogada <bharatku@xilinx.com> Cc: Ravi Kiran Gummaluri <rgummal@xilinx.com>
2017-08-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Mainline had UFO fixes, but UFO is removed in net-next so we take the HEAD hunks. Minor context conflict in bcmsysport statistics bug fix. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcDavid S. Miller
2017-08-10x86/hyper-v: Use hypercall for remote TLB flushVitaly Kuznetsov
Hyper-V host can suggest us to use hypercall for doing remote TLB flush, this is supposed to work faster than IPIs. Implementation details: to do HvFlushVirtualAddress{Space,List} hypercalls we need to put the input somewhere in memory and we don't really want to have memory allocation on each call so we pre-allocate per cpu memory areas on boot. pv_ops patching is happening very early so we need to separate hyperv_setup_mmu_ops() and hyper_alloc_mmu(). It is possible and easy to implement local TLB flushing too and there is even a hint for that. However, I don't see a room for optimization on the host side as both hypercall and native tlb flush will result in vmexit. The hint is also not set on modern Hyper-V versions. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Jork Loeser <Jork.Loeser@microsoft.com> Cc: K. Y. Srinivasan <kys@microsoft.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Simon Xiao <sixiao@microsoft.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: devel@linuxdriverproject.org Link: http://lkml.kernel.org/r/20170802160921.21791-8-vkuznets@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-08-10ARM: omap2plus_defconfig: enable DP83867 phy driverSekhar Nori
TI's DP83867 phy is used on DRA72x EVM rev C and DRA71x EVMs. Enable support for it in omap2plus_defconfig. The driver is built into the kernel to help NFS booting. Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-08-10ARM: dts: dra72-evm-revc: workaround incorrect DP83867 RX_CTRL pin strapSekhar Nori
The DRA72 EVM Rev C straps the DP83867 GigaBit Ethernet phy's RX_DV/RX_CTRL pin in mode 1. Unfortunately, the phy data manual disallows this. Add "ti,dp83867-rxctrl-strap-quirk" property to the phy's device-tree node to allow kernel to enable software workaround for this incorrect strap setting. This is as suggested by the phy's datamanual and ensures proper operation of this PHY. This needs to be done for both instances of this PHY present on the board. Signed-off-by: Sekhar Nori <nsekhar@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-08-10ARM: dts: dra71-evm: workaround incorrect DP83867 RX_CTRL pin strapSekhar Nori
The DRA71 EVM straps the DP83867 GigaBit Ethernet phy's RX_DV/RX_CTRL pin in mode 1. Unfortunately, the phy data manual disallows this. Add "ti,dp83867-rxctrl-strap-quirk" property to the phy's device-tree node to allow kernel to enable software workaround for this incorrect strap setting. This is as suggested by the phy's datamanual and ensures proper operation of this PHY. This needs to be done for both instances of this PHY present on the board. Signed-off-by: Sekhar Nori <nsekhar@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-08-10arm64: compat: Remove leftover variable declarationKevin Brodsky
Commit a1d5ebaf8ccd ("arm64: big-endian: don't treat code as data when copying sigret code") moved the 32-bit sigreturn trampoline code from the aarch32_sigret_code array to kuser32.S. The commit removed the array definition from signal32.c, but not its declaration in signal32.h. Remove the leftover declaration. Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com> Signed-off-by: Mark Salyzyn <salyzyn@android.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2017-08-10arm64: fix pmem interface definitionArnd Bergmann
Defining the two functions as 'static inline' and exporting them leads to the interesting case where we can use the interface from loadable modules, but not from built-in drivers, as shown in this link failure: vers/nvdimm/claim.o: In function `nsio_rw_bytes': claim.c:(.text+0x1b8): undefined reference to `arch_invalidate_pmem' drivers/nvdimm/pmem.o: In function `pmem_dax_flush': pmem.c:(.text+0x11c): undefined reference to `arch_wb_cache_pmem' drivers/nvdimm/pmem.o: In function `pmem_make_request': pmem.c:(.text+0x5a4): undefined reference to `arch_invalidate_pmem' pmem.c:(.text+0x650): undefined reference to `arch_invalidate_pmem' pmem.c:(.text+0x6d4): undefined reference to `arch_invalidate_pmem' This removes the bogus 'static inline'. Fixes: d50e071fdaa3 ("arm64: Implement pmem API support") Acked-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2017-08-10ARM: dts: Add dra7 iodelay configurationTony Lindgren
Add dra7 iodelay configuration. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-08-10ARM: OMAP2+: Select PINCTRL_TI_IODELAY for SOC_DRA7XXKishon Vijay Abraham I
PINCTRL_TI_IODELAY should be enabled so that "pinctrl_dev" can be created for pinctrl entries populated with iodelay values in device tree data. Select PINCTRL_TI_IODELAY for SOC_DRA7XX here. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-08-10ARM: configs: keystone: Enable D_CAN driverFranklin S Cooper Jr
Enable C_CAN/D_CAN driver supported by 66AK2G Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2017-08-10ARM: dts: k2g: Add DCAN nodesLokesh Vutla
Add nodes for the two DCAN instances included in 66AK2G Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> [d-gerlach@ti.com: add power-domains and clock information] Signed-off-by: Dave Gerlach <d-gerlach@ti.com> [fcooper@ti.com: update subject and commit message. Misc minor updates] Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2017-08-10sparc64: Revert 16GB huge page support.David S. Miller
It overflows the amount of space available in the initial .text section of trap handler assembler in some configurations, resulting in build failures. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-10arm64: perf: add support for Cortex-A35Julien Thierry
The Cortex-A35 uses some implementation defined perf events. The Cortex-A35 derives from the Cortex-A53 core, using the same event mapings based on Cortex-A35 TRM r0p2, section C2.3 - Performance monitoring events (pages C2-562 to C2-565). Signed-off-by: Julien Thierry <julien.thierry@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-08-10arm64: perf: add support for Cortex-A73Julien Thierry
The Cortex-A73 uses some implementation defined perf events. This patch sets up the necessary mapping for Cortex-A73. Mappings are based on Cortex-A73 TRM r0p2, section 11.9 Events (pages 11-457 to 11-460). Signed-off-by: Julien Thierry <julien.thierry@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-08-10arm64: perf: Remove redundant entries from CPU-specific event mapsWill Deacon
Now that the event mapping code always looks into the PMUv3 events before any extended mappings, the extended mappings can be reduced to only those events that are not discoverable through the PMCEID registers. Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-08-10arm64: perf: Connect additional events to pmu countersJulien Thierry
Last level caches and node events were almost never connected in current supported cores. We connect last level caches to the actual last level within the core and node events are connected to bus accesses. Signed-off-by: Julien Thierry <julien.thierry@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>