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2017-01-27Merge tag 'imx-fixes-4.10-3' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into HEAD Pull "i.MX fixes for 4.10, 3rd round" from Shawn Guo: - Fix a 'defined but not used' warning in MMDC driver when CONFIG_PERF_EVENTS is disabled. - Fix i.MX6DL device tree GPIO4_11 range setting. - A bandaid fix for boot failure found on a couple of platforms due to missing 'chosen' and 'memory' node. * tag 'imx-fixes-4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: dts: imx: Pass 'chosen' and 'memory' nodes ARM: dts: imx6dl: fix GPIO4 range ARM: imx: hide unused variable in #ifdef
2017-01-27ARM64: dts: meson-gx: Add firmware reserved memory zonesNeil Armstrong
The Amlogic Meson GXBB/GXL/GXM secure monitor uses part of the memory space, this patch adds these reserved zones. Without such reserved memory zones, running the following stress command : $ stress-ng --vm 16 --vm-bytes 128M --timeout 10s multiple times: Could lead to the following kernel crashes : [ 46.937975] Bad mode in Error handler detected on CPU1, code 0xbf000000 -- SError ... [ 47.058536] Internal error: Attempting to execute userspace memory: 8600000f [#3] PREEMPT SMP ... Instead of the OOM killer. Fixes: 4f24eda8401f ("ARM64: dts: Prepare configs for Amlogic Meson GXBaby") Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Andreas Färber <afaerber@suse.de> [khilman: added Fixes tag, added _reserved and unit addresses] Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-01-27ARM64: dts: meson-gxbb-odroidc2: fix GbE tx link breakageJerome Brunet
OdroidC2 GbE link breaks under heavy tx transfer. This happens even if the MAC does not enable Energy Efficient Ethernet (No Low Power state Idle on the Tx path). The problem seems to come from the phy Rx path, entering the LPI state. Disabling EEE advertisement on the phy prevent this feature to be negociated with the link partner and solve the issue. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-01-27ARM: dts: sun8i-h3: Add dts for the Beelink X2 STBMarcus Cooper
The Beelink X2 is an STB based on the Allwinner H3 SoC with a uSD slot, 2 USB ports( 1 * USB-2 Host, 1 USB OTG), a 10/100M ethernet port using the SoC's integrated PHY, Wifi via an sdio wifi chip, HDMI, an IR receiver, a dual colour LED and an optical S/PDIF connector. Signed-off-by: Marcus Cooper <codekipper@gmail.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-27ARM: sun8i: sina33: Enable displayMaxime Ripard
Enable the display pipeline with the associated 7" panel sold with the SinA33. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-27ARM: sun8i: a23/a33: Add the oscillators accuracyMaxime Ripard
The datasheet provided by Allwinner requires oscillators with an accuracy of 50ppm. Add it to our fixed clocks so that we can properly track the accuracy chain. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-27ARM: sun8i: a23/a33: Enable the real LOSC and use itMaxime Ripard
So far, the LOSC was generated through the RTC internal oscillator, which was a pretty poor and inaccurate choice. Now that the RTC properly exposes its internal mux between its oscillator and the external oscillator, we can use it were relevant. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-27ARM: dts: sunxi: add support for Lichee Pi Zero boardIcenowy Zheng
Lichee Pi Zero is a small-sized V3s board, which is breadboard-compatible, and with a MicroUSB port with both OTG function and power function. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-27ARM: dts: sunxi: add dtsi file for V3s SoCIcenowy Zheng
As we have the pinctrl and clock support for the V3s SoC, it's now to run a mainline Linux on it. So add a .dtsi file for it. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> [Maxime: Removed the dependency on the CCU headers] Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-27ARM: dts: STiH407-family: set snps,dis_u3_susphy_quirkPatrice Chotard
Since v4.10-rc1, the following logs appears in loop : [ 801.953836] usb usb6-port1: Cannot enable. Maybe the USB cable is bad? [ 801.960455] xhci-hcd xhci-hcd.0.auto: Cannot set link state. [ 801.966611] usb usb6-port1: cannot disable (err = -32) [ 806.083772] usb usb6-port1: Cannot enable. Maybe the USB cable is bad? [ 806.090370] xhci-hcd xhci-hcd.0.auto: Cannot set link state. [ 806.096494] usb usb6-port1: cannot disable (err = -32) After analysis, xhci try to set link in U3 and returns an error. Using snps,dis_u3_susphy_quirk fix this issue. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-01-27kvm: x86: mmu: Verify that restored PTE has needed perms in fast page faultJunaid Shahid
Before fast page fault restores an access track PTE back to a regular PTE, it now also verifies that the restored PTE would grant the necessary permissions for the faulting access to succeed. If not, it falls back to the slow page fault path. Signed-off-by: Junaid Shahid <junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27kvm: x86: mmu: Move pgtbl walk inside retry loop in fast_page_faultJunaid Shahid
Redo the page table walk in fast_page_fault when retrying so that we are working on the latest PTE even if the hierarchy changes. Signed-off-by: Junaid Shahid <junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27kvm: x86: mmu: Update comment in mark_spte_for_access_trackJunaid Shahid
Reword the comment to hopefully make it more clear. Signed-off-by: Junaid Shahid <junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27kvm: x86: mmu: Set SPTE_SPECIAL_MASK within mmu.cJunaid Shahid
Instead of the caller including the SPTE_SPECIAL_MASK in the masks being supplied to kvm_mmu_set_mmio_spte_mask() and kvm_mmu_set_mask_ptes(), those functions now themselves include the SPTE_SPECIAL_MASK. Note that bit 63 is now reset in the default MMIO mask. Signed-off-by: Junaid Shahid <junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27kvm: x86: mmu: Rename EPT_VIOLATION_READ/WRITE/INSTR constantsJunaid Shahid
Rename the EPT_VIOLATION_READ/WRITE/INSTR constants to EPT_VIOLATION_ACC_READ/WRITE/INSTR to more clearly indicate that these signify the type of the memory access as opposed to the permissions granted by the PTE. Signed-off-by: Junaid Shahid <junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27arm64: Use __tlbi() macros in KVM codeChristopher Covington
Refactor the KVM code to use the __tlbi macros, which will allow an errata workaround that repeats tlbi dsb sequences to only change one location. This is not intended to change the generated assembly and comparing before and after vmlinux objdump shows no functional changes. Acked-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Christopher Covington <cov@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-01-27arm64: Define Falkor v1 CPUShanker Donthineni
Define the MIDR implementer and part number field values for the Qualcomm Datacenter Technologies Falkor processor version 1 in the usual manner. Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org> Signed-off-by: Christopher Covington <cov@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-01-27arm64: skip register_cpufreq_notifier on ACPI-based systemsPrashanth Prakash
On ACPI based systems where the topology is setup using the API store_cpu_topology, at the moment we do not have necessary code to parse cpu capacity and handle cpufreq notifier, thus resulting in a kernel panic. Stack: init_cpu_capacity_callback+0xb4/0x1c8 notifier_call_chain+0x5c/0xa0 __blocking_notifier_call_chain+0x58/0xa0 blocking_notifier_call_chain+0x3c/0x50 cpufreq_set_policy+0xe4/0x328 cpufreq_init_policy+0x80/0x100 cpufreq_online+0x418/0x710 cpufreq_add_dev+0x118/0x180 subsys_interface_register+0xa4/0xf8 cpufreq_register_driver+0x1c0/0x298 cppc_cpufreq_init+0xdc/0x1000 [cppc_cpufreq] do_one_initcall+0x5c/0x168 do_init_module+0x64/0x1e4 load_module+0x130c/0x14d0 SyS_finit_module+0x108/0x120 el0_svc_naked+0x24/0x28 Fixes: 7202bde8b7ae ("arm64: parse cpu capacity-dmips-mhz from DT") Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Prashanth Prakash <pprakash@codeaurora.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2017-01-27ACPI / idle: small formatting fixesNick Desaulniers
A quick cleanup with scripts/checkpatch.pl -f <file>. Signed-off-by: Nick Desaulniers <nick.desaulniers@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-27arm64: dts: marvell: add generic-ahci compatibles for CP110 ahciRussell King
Testing with an Armada 8040 board shows that adding the generic-ahci compatible to the CP110 AHCI nodes gets us working AHCI on the board. A previous patch series posted by Thomas Petazzoni was retracted when it was realised that the IP was supposed to be, and is, compatible with the standard register layout. Add this compatible. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-01-27KVM: PPC: Book3S PR: Refactor program interrupt related code into separate ↵Thomas Huth
function The function kvmppc_handle_exit_pr() is quite huge and thus hard to read, and even contains a "spaghetti-code"-like goto between the different case labels of the big switch statement. This can be made much more readable by moving the code related to injecting program interrupts / instruction emulation into a separate function instead. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-01-27soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION registerKrzysztof Kozlowski
The register ARM_L2_OPTION (0x2608 in Exynos4 and Exynos5 PMU) was defined twice. Both names were used in the Exynos542x code. Simplify this. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-01-27KVM: PPC: Book3S HV: Fix H_PROD to actually wake the target vcpuPaul Mackerras
The H_PROD hypercall is supposed to wake up an idle vcpu. We have an implementation, but because Linux doesn't use it except when doing cpu hotplug, it was never tested properly. AIX does use it, and reported it broken. It turns out we were waking the wrong vcpu (the one doing H_PROD, not the target of the prod) and we weren't handling the case where the target needs an IPI to wake it. Fix it by using the existing kvmppc_fast_vcpu_kick_hv() function, which is intended for this kind of thing, and by using the target vcpu not the current vcpu. We were also not looking at the prodded flag when checking whether a ceded vcpu should wake up, so this adds checks for the prodded flag alongside the checks for pending exceptions. Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-01-27arm64: tegra: Use symbolic reset identifiersThierry Reding
Now that the corresponding device tree binding include has been merged, convert the DTS files to use symbolic names instead of numeric ones. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-01-27arm64: dts: r8a7796: Mark EthernetAVB device node disabledGeert Uytterhoeven
Device nodes representing I/O devices should be marked disabled in the SoC-specific DTS, and overridden by board-specific DTSes where needed. Fixes: 8e8b9eaef8fb05d9 ("arm64: dts: renesas: r8a7796: Add EthernetAVB instance") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-27arm64: dts: r8a7795: Mark EthernetAVB device node disabledGeert Uytterhoeven
Device nodes representing I/O devices should be marked disabled in the SoC-specific DTS, and overridden by board-specific DTSes where needed. Fixes: a92843c8a6f8c039 ("arm64: dts: r8a7795: add EthernetAVB device node") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-27arm64: dts: r8a7795: tidyup audma definition orderKuninori Morimoto
Current r8a7795.dtsi defines audma -> ipmmu -> dma order. Because of this order, dma can connect to ipmmu, but audma can't connect to it. This patch moves audma order as ipmmu -> dma -> audma. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-27arm64: dts: r8a7796: Link ARM GIC to clock and clock domainGeert Uytterhoeven
Link the ARM GIC to the INTC-AP module clock, and add it to the SYSC "always-on" PM Domain, so it can be power managed using that clock. Note that currently the GIC-400 driver doesn't support module clocks nor Runtime PM, so this must be handled as a critical clock. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-27arm64: dts: r8a7795: Link ARM GIC to clock and clock domainGeert Uytterhoeven
Link the ARM GIC to the INTC-AP module clock, and add it to the SYSC "always-on" PM Domain, so it can be power managed using that clock. Note that currently the GIC-400 driver doesn't support module clocks nor Runtime PM, so this must be handled as a critical clock. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-27arm64: dts: r8a7796: Add R-Car Gen3 thermal supportWolfram Sang
Signed-off-by: Hien Dang <hien.dang.eb@renesas.com> Signed-off-by: Thao Nguyen <thao.nguyen.yb@rvc.renesas.com> Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@renesas.com> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Acked-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-27arm64: dts: r8a7795: Add R-Car Gen3 thermal supportWolfram Sang
Signed-off-by: Hien Dang <hien.dang.eb@renesas.com> Signed-off-by: Thao Nguyen <thao.nguyen.yb@rvc.renesas.com> Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@renesas.com> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Acked-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-27arm64: dts: r8a7795: Add missing power-domains property for sataGeert Uytterhoeven
This went unnoticed as the sata_rcar driver doesn't support Runtime PM yet, but manages module clocks manually. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-01-27KVM: PPC: Book3S: Move 64-bit KVM interrupt handler out from alt sectionNicholas Piggin
A subsequent patch to make KVM handlers relocation-safe makes them unusable from within alt section "else" cases (due to the way fixed addresses are taken from within fixed section head code). Stop open-coding the KVM handlers, and add them both as normal. A more optimal fix may be to allow some level of alternate feature patching in the exception macros themselves, but for now this will do. The TRAMP_KVM handlers must be moved to the "virt" fixed section area (name is arbitrary) in order to be closer to .text and avoid the dreaded "relocation truncated to fit" error. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-01-27KVM: PPC: Book3S: Change interrupt call to reduce scratch space use on HVNicholas Piggin
Change the calling convention to put the trap number together with CR in two halves of r12, which frees up HSTATE_SCRATCH2 in the HV handler. The 64-bit PR handler entry translates the calling convention back to match the previous call convention (i.e., shared with 32-bit), for simplicity. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-01-27Merge branch 'master' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next Backmerge Linus master to get the connector locking revert. * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux: (645 commits) sysctl: fix proc_doulongvec_ms_jiffies_minmax() Revert "drm/probe-helpers: Drop locking from poll_enable" MAINTAINERS: add Dan Streetman to zbud maintainers MAINTAINERS: add Dan Streetman to zswap maintainers mm: do not export ioremap_page_range symbol for external module mn10300: fix build error of missing fpu_save() romfs: use different way to generate fsid for BLOCK or MTD frv: add missing atomic64 operations mm, page_alloc: fix premature OOM when racing with cpuset mems update mm, page_alloc: move cpuset seqcount checking to slowpath mm, page_alloc: fix fast-path race with cpuset update or removal mm, page_alloc: fix check for NULL preferred_zone kernel/panic.c: add missing \n fbdev: color map copying bounds checking frv: add atomic64_add_unless() mm/mempolicy.c: do not put mempolicy before using its nodemask radix-tree: fix private list warnings Documentation/filesystems/proc.txt: add VmPin mm, memcg: do not retry precharge charges proc: add a schedule point in proc_pid_readdir() ...
2017-01-26arch/x86/platform/atom: Move pmc_atom to drivers/platform/x86Irina Tirdea
The pmc_atom driver does not contain any architecture specific code. It only enables the SoC Power Management Controller driver for BayTrail and CherryTrail platforms. Move the pmc_atom driver from arch/x86/platform/atom to drivers/platform/x86. Also clean-up and reorder include files by alphabetical order in pmc_atom.h Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26powerpc/8xx: Perf events on PPC 8xxChristophe Leroy
This patch has been reworked since RFC version. In the RFC, this patch was preceded by a patch clearing MSR RI for all PPC32 at all time at exception prologs. Now MSR RI clearing is done only when this 8xx perf events functionality is compiled in, it is therefore limited to 8xx and merged inside this patch. Other main changes have been to take into account detailed review from Peter Zijlstra. The instructions counter has been reworked to behave as a free running counter like the three other counters. The 8xx has no PMU, however some events can be emulated by other means. This patch implements the following events (as reported by 'perf list'): cpu-cycles OR cycles [Hardware event] instructions [Hardware event] dTLB-load-misses [Hardware cache event] iTLB-load-misses [Hardware cache event] 'cycles' event is implemented using the timebase clock. Timebase clock corresponds to CPU clock divided by 16, so number of cycles is approximatly 16 times the number of TB ticks On the 8xx, TLB misses are handled by software. It is therefore easy to count all TLB misses each time the TLB miss exception is called. 'instructions' is calculated by using instruction watchpoint counter. This patch sets counter A to count instructions at address greater than 0, hence we count all instructions executed while MSR RI bit is set. The counter is set to the maximum which is 0xffff. Every 65535 instructions, debug instruction breakpoint exception fires. The exception handler increments a counter in memory which then represent the upper part of the instruction counter. We therefore end up with a 48 bits counter. In order to avoid unnecessary overhead while no perf event is active, this counter is started when the first event referring to this counter is added, and the counter is stopped when the last event referring to it is deleted. In order to properly support breakpoint exceptions, MSR RI bit has to be unset in exception epilogs in order to avoid breakpoint exceptions during critical sections during changes to SRR0 and SRR1 would be problematic. All counters are handled as free running counters. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Scott Wood <oss@buserror.net>
2017-01-26powerpc/32: Remove FIX_SRR1Christophe Leroy
FIX_SRR1() is defined as blank. Last useful instance of FIX_SRR1() was removed by commit 40ef8cbc6d360 ("powerpc: Get 64-bit configs to compile with ARCH=powerpc") in 2005. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Scott Wood <oss@buserror.net>
2017-01-27KVM: PPC: Book 3S: XICS: Don't lock twice when checking for resendLi Zhong
This patch improves the code that takes lock twice to check the resend flag and do the actual resending, by checking the resend flag locklessly, and add a boolean parameter check_resend to icp_[rm_]deliver_irq(), so the resend flag can be checked in the lock when doing the delivery. We need make sure when we clear the ics's bit in the icp's resend_map, we don't miss the resend flag of the irqs that set the bit. It could be ordered through the barrier in test_and_clear_bit(), and a newly added wmb between setting irq's resend flag, and icp's resend_map. Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-01-27KVM: PPC: Book 3S: XICS: Implement ICS P/Q statesLi Zhong
This patch implements P(Presented)/Q(Queued) states for ICS irqs. When the interrupt is presented, set P. Present if P was not set. If P is already set, don't present again, set Q. When the interrupt is EOI'ed, move Q into P (and clear Q). If it is set, re-present. The asserted flag used by LSI is also incorporated into the P bit. When the irq state is saved, P/Q bits are also saved, they need some qemu modifications to be recognized and passed around to be restored. KVM_XICS_PENDING bit set and saved should also indicate KVM_XICS_PRESENTED bit set and saved. But it is possible some old code doesn't have/recognize the P bit, so when we restore, we set P for PENDING bit, too. The idea and much of the code come from Ben. Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-01-27KVM: PPC: Book 3S: XICS: Fix potential issue with duplicate IRQ resendsLi Zhong
It is possible that in the following order, one irq is resent twice: CPU 1 CPU 2 ics_check_resend() lock ics_lock see resend set unlock ics_lock /* change affinity of the irq */ kvmppc_xics_set_xive() write_xive() lock ics_lock see resend set unlock ics_lock icp_deliver_irq() /* resend */ icp_deliver_irq() /* resend again */ It doesn't have any user-visible effect at present, but needs to be avoided when the following patch implementing the P/Q stuff is applied. This patch clears the resend flag before releasing the ics lock, when we know we will do a re-delivery after checking the flag, or setting the flag. Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-01-27KVM: PPC: Book 3S: XICS: correct the real mode ICP rejecting counterLi Zhong
Some counters are added in Commit 6e0365b78273 ("KVM: PPC: Book3S HV: Add ICP real mode counters"), to provide some performance statistics to determine whether further optimizing is needed for real mode functions. The n_reject counter counts how many times ICP rejects an irq because of priority in real mode. The redelivery of an lsi that is still asserted after eoi doesn't fall into this category, so the increasement there is removed. Also, it needs to be increased in icp_rm_deliver_irq() if it rejects another one. Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-01-27KVM: PPC: Book 3S: XICS cleanup: remove XICS_RM_REJECTLi Zhong
Commit b0221556dbd3 ("KVM: PPC: Book3S HV: Move virtual mode ICP functions to real-mode") removed the setting of the XICS_RM_REJECT flag. And since that commit, nothing else sets the flag any more, so we can remove the flag and the remaining code that handles it, including the counter that counts how many times it get set. Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-01-27KVM: PPC: Book3S HV: Don't try to signal cpu -1Paul Mackerras
If the target vcpu for kvmppc_fast_vcpu_kick_hv() is not running on any CPU, then we will have vcpu->arch.thread_cpu == -1, and as it happens, kvmppc_fast_vcpu_kick_hv will call kvmppc_ipi_thread with -1 as the cpu argument. Although this is not meaningful, in the past, before commit 1704a81ccebc ("KVM: PPC: Book3S HV: Use msgsnd for IPIs to other cores on POWER9", 2016-11-18), it was harmless because CPU -1 is not in the same core as any real CPU thread. On a POWER9, however, we don't do the "same core" check, so we were trying to do a msgsnd to thread -1, which is invalid. To avoid this, we add a check to see that vcpu->arch.thread_cpu is >= 0 before calling kvmppc_ipi_thread() with it. Since vcpu->arch.thread_vcpu can change asynchronously, we use READ_ONCE to ensure that the value we check is the same value that we use as the argument to kvmppc_ipi_thread(). Fixes: 1704a81ccebc ("KVM: PPC: Book3S HV: Use msgsnd for IPIs to other cores on POWER9") Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-01-26arm64: dts: exynos: Add clocks to Exynos5433 LPASS moduleMarek Szyprowski
Exynos5433 LPASS module requires some clocks for proper operation with power domain. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-01-26ARM: dts: Add support for phyCORE-AM335x PCM-953 carrier boardTeresa Remmet
The phyCORE-AM335x development kit is a combination of the phyCORE-AM335x SoM and a PCM-953 carrier board. The features of the PCM-953 are: * ETH phy on carrier board: 1x RGMII * 1x CAN * Up to 4x UART * USB0 (otg) * USB1 (host) * SD slot * User gpio-keys * User LEDs Signed-off-by: Teresa Remmet <t.remmet@phytec.de> Reviewed-by: Wadim Egorov <w.egorov@phytec.de> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-26cris: migrate exception table users off module.h and onto extable.hPaul Gortmaker
This file was only including module.h for exception table related functions. We've now separated that content out into its own file "extable.h" so now move over to that and avoid all the extra header content in module.h that we don't really need to compile this file. Reported-by: kbuild test robot <lkp@intel.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: linux-cris-kernel@axis.com Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2017-01-26hexagon: migrate exception table users off module.h and onto extable.hPaul Gortmaker
This file was only including module.h for exception table related functions. We've now separated that content out into its own file "extable.h" so now move over to that and avoid all the extra header content in module.h that we don't really need to compile this file. Cc: Richard Kuo <rkuo@codeaurora.org> Cc: linux-hexagon@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2017-01-26microblaze: migrate exception table users off module.h and onto extable.hPaul Gortmaker
This file was only including module.h for exception table related functions. We've now separated that content out into its own file "extable.h" so now move over to that and avoid all the extra header content in module.h that we don't really need to compile this file. Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2017-01-26unicore32: migrate exception table users off module.h and onto extable.hPaul Gortmaker
This file was only including module.h for exception table related functions. We've now separated that content out into its own file "extable.h" so now move over to that and avoid all the extra header content in module.h that we don't really need to compile this file. Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>