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2017-08-28ARC: [plat-eznps] Handle user memory error same in simulation and siliconNoam Camus
On ARC700 (and nSIM), user mode memory error triggers an L2 interrupt which is handled gracefully by kernel (or it tries to despite this being imprecise, and error could get charged to kernel itself). The offending task is killed and kernel moves on. NPS hardware however raises a Machine Check exception for same error which is NOT recoverable by kernel. This patch aligns kernel handling for nSIM case, to same as hardware by overriding the default user space bus error handler. Signed-off-by: Noam Camus <noamca@mellanox.com> Signed-off-by: Elad Kanfi <eladkan@mellanox.com> [vgupta: rewrote changelog] Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-28ARC: [plat-eznps] use schd.wft instruction instead of sleep at idle taskNoam Camus
When HW threads are active we want CPU to enter idle state only for the calling HW thread and not to put on sleep all HW threads sharing this core. For this need the NPS400 got dedicated instruction so only calling thread is entring sleep and all other are still awake and can execute instructions. Signed-off-by: Noam Camus <noamca@mellanox.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> [vgupta: reworked patch to not use inline ifdef but a new function itself]
2017-08-28ARC: create cpu specific version of arch_cpu_idle()Vineet Gupta
This paves way for creating a 3rd variant needed for NPS ARC700 without littering ifdey'ery all over the place Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-28ARC: [plat-eznps] spinlock aware for MTMNoam Camus
This way when we execute "ex" during trying to hold lock we can switch to other HW thread and utilize the core intead of just spinning on a lock. We noticed about 10% improvement of execution time with hackbench test. Signed-off-by: Noam Camus <noamca@mellanox.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-28ARC: spinlock: Document the EX based spin_unlockVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-28ARC: [plat-eznps] disabled stall counter due to a HW bugNoam Camus
This counter represents threshold for consecutive stall which would trigger HW threads scheduling. However when enabled, low threshhold values cause performance degradation and in the worst case even livelock. So disable it by resorting to HW reset value Signed-off-by: Noam Camus <noamca@mellanox.com> Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> [vgupta: fixed changelog]
2017-08-28ARC: [plat-eznps] Fix TLB ErrataNoam Camus
Due to a HW bug in NPS400 we get from time to time false TLB miss. Workaround this by validating each miss. Signed-off-by: Noam Camus <noamca@mellanox.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-28ARC: [plat-eznps] typo fix at KconfigNoam Camus
Signed-off-by: Noam Camus <noamca@mellanox.com> Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-28ARC: typos fix in kernel/entry-compact.SLiav Rehana
Signed-off-by: Liav Rehana <liavr@mellanox.com> Signed-off-by: Noam Camus <noamca@mellanox.com> Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-28ARC: typo fix in mm/fault.cLiav Rehana
Signed-off-by: Liav Rehana <liavr@mellanox.com> Signed-off-by: Noam Camus <noamca@mellanox.com> Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-28Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds
Pull c6x tweaks from Mark Salter. * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: c6x: Convert to using %pOF instead of full_name c6x: defconfig: Cleanup from old Kconfig options
2017-08-29arm64: dts: uniphier: add PXs3 SoC supportMasahiro Yamada
Initial support for PXs3 SoC and its reference development board. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-29ARM: dts: uniphier: add pinctrl groups of ethernet phy modeKunihiko Hayashi
Add pinctrl groups of ethenet phy mode, such as "ether_rgmii", "ether_rmii", and "ether_mii". Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-28ARM: dts: uniphier: fix size of sdctrl nodesMasahiro Yamada
All registers are located within 0x400 size from the base address. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-28ARM: dts: uniphier: add AIDET nodesMasahiro Yamada
Add UniPhier AIDET (ARM Interrupt Detector) nodes to support active low interrupts. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-28arm64: dts: uniphier: fix size of sdctrl nodeMasahiro Yamada
All registers are located within 0x400 size from the base address. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-28arm64: dts: uniphier: add AIDET nodesMasahiro Yamada
Add UniPhier AIDET (ARM Interrupt Detector) nodes to support active low interrupts. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-28KVM: s390: Support Configuration z/Architecture ModeJason J. Herne
kvm has always supported the concept of starting in z/Arch mode so let's reflect the feature bit to the guest. Also, we change sigp set architecture to reject any request to change architecture modes. Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2017-08-28powerpc/configs/6xx: Drop removed CONFIG_USB_LEDMichael Ellerman
In commit a335aaf3125c ("usb: misc: remove outdated USB LED driver") CONFIG_USB_LED was removed, so drop it from our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer selectable CONFIG_BT_HCIUART_LLMichael Ellerman
Since commit 76c4969fecb1 ("Bluetooth: hci_uart: fix kconfig dependency") we can no longer select CONFIG_BT_HCIUART_LL. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/c2k: Switch CONFIG_GEN_RTC from =m to =yMichael Ellerman
In commit 835ea93e9d26 ("char/genrtc: remove powerpc support"), CONFIG_GEN_RTC switch from tristate to bool, update the defconfig to match. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Switch CONFIG_USB_EHCI_FSL to =mMichael Ellerman
In commit ca07e1c1e4a6 ("drivers:usb:fsl:Make fsl ehci drv an independent driver module"), CONFIG_USB_EHCI_FSL was switched from built-in to modular. Update the defconfig. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer needed CONFIG_BT_HCIUART_H4Michael Ellerman
Since commit 943cc592195e ("Bluetooth: bpa10x: Use h4_recv_buf helper for frame reassembly") we no longer need to set CONFIG_BT_HCIUART_H4 in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer needed CONFIG_NETFILTER_XT_MATCH_SOCKETMichael Ellerman
Since commit 8db4c5be88f6 ("netfilter: move socket lookup infrastructure to nf_socket_ipv{4,6}.c") we no longer need to set CONFIG_NETFILTER_XT_MATCH_SOCKET in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Reinstate CONFIG_CPU_FREQ_STATMichael Ellerman
In commit 1aefc75b2449 ("cpufreq: stats: Make the stats code non-modular"), the CPU_FREQ_STAT code was made non-modular. Our defconfig still said =m though, which meant we no longer got the code at all. Switch the defconfig to =y. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer needed CONFIG_NF_CONNTRACK_PROC_COMPATMichael Ellerman
Since commit adf0516845bc ("netfilter: remove ip_conntrack* sysctl compat code") we no longer need to set CONFIG_NF_CONNTRACK_PROC_COMPAT in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop removed CONFIG_BLK_DEV_HDMichael Ellerman
In commit 8e14be53f470 ("remove the obsolete hd driver") the CONFIG_BLK_DEV_HD symbol was removed, so drop it from the defconfig. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Clean up duplicate CONFIG_EXT4 valuesMichael Ellerman
We had two values for CONFIG_EXT4, =m and =y, just use =y. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Drop no longer needed CONFIG_TIMER_STATSMichael Ellerman
Since commit dfb4357da6dd ("time: Remove CONFIG_TIMER_STATS") we no longer need to set CONFIG_TIMER_STATS in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/6xx: Turn CONFIG_DRM_RADEON back onMichael Ellerman
In commit d92d9c3a1448 ("drm: hide legacy drivers with CONFIG_DRM_LEGACY") CONFIG_DRM_RADEON was moved behind CONFIG_DRM_LEGACY meaning it stopped being enabled by ppc6xx_defconfig. Although no one has noticed, given this is basically a legacy platform, it seems anyone who is using it probably still wants this driver. So turn it back on for now. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs/mpc5200: Drop no longer needed CONFIG_FBMichael Ellerman
Since commit a03fdcb18632 ("drm: Add top level Kconfig option for DRM fbdev emulation") we no longer need to set CONFIG_FB in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Update for CONFIG_INPUT_MOUSEDEV=nMichael Ellerman
In commit 73d8ef76006b ("Input: mousedev - stop offering PS/2 to userspace by default") the symbol INPUT_MOUSEDEV went from being 'default y' to 'default n' (implied). That means we no longer need to explicitly disable it in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop removed CONFIG_LOGFSMichael Ellerman
In commit 1d0fd57a50aa ("logfs: remove from tree"), logfs was removed from the tree, so we can drop it from our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Turn CONFIG_R128 back in pmac32_defconfigMichael Ellerman
In commit d92d9c3a1448 ("drm: hide legacy drivers with CONFIG_DRM_LEGACY") CONFIG_R128 was moved behind CONFIG_DRM_LEGACY meaning it stopped being enabled by pmac32_defconfig. Although no one has noticed, given this is basically a legacy platform, it seems anyone who is using it probably still wants this driver. So turn it back on for now. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_LIBCRC32CMichael Ellerman
Since commit 300ae149468f ("netfilter: select LIBCRC32C together with SCTP conntrack") we no longer need to set CONFIG_LIBCRC32C in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop unnecessary CONFIG_EDAC from ppc64eMichael Ellerman
There are no EDAC drivers for ppc64e. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_SCSIMichael Ellerman
Since commit 67f6d6655993 ("powerpc: convert amigaone_defconfig to use libata PATA drivers") we no longer need to set CONFIG_SCSI in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_IPV6Michael Ellerman
Since commit de551f2eb22a ("net: Build IPv6 into kernel by default") we no longer need to set CONFIG_IPV6 in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Add CONFIG_RAS now required for CONFIG_EDACMichael Ellerman
In commit e3c4ff6d8c94 ("EDAC: Remove EDAC_MM_EDAC") CONFIG_EDAC grew a dependency on CONFIG_RAS. Some of our defconfigs don't have the latter, which means we lose CONFIG_EDAC, so add CONFIG_RAS to fix that. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_AUDITSYSCALLMichael Ellerman
Since commit cb74ed278f80 ("audit: always enable syscall auditing when supported and audit is enabled") we no longer need to set CONFIG_AUDITSYSCALL in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop CONFIG_SERIAL_TXX9_* from cell/ppc64Michael Ellerman
In commit bf4981a00636 ("powerpc: Remove the celleb support") we dropped the celleb support, which made these symbols unselectable because we no longer select HAS_TX99_SERIAL. So drop them from the defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop MEMORY_HOTREMOVE from ppc64/cellMichael Ellerman
xxxx In commit 577ec789a79e ("powerpc/cell: Drop select of MEMORY_HOTPLUG") we removed the last traces of any dependency between Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop unnecessary CONFIG_POWERNV_OP_PANELMichael Ellerman
In commit 43a1dd9b5fc6 ("powerpc/powernv: Add driver for operator panel on FSP machines") we added CONFIG_POWERNV_OP_PANEL=m to the powernv defconfig, but it's default m so that's no necessary. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed PCI_MSI on powernvMichael Ellerman
In commit a311e738b6d8 ("powerpc/powernv: Make PCI non-optional") we made PCI (and therefore PCI_MSI) non-optional on powernv, so it doesn't need to be in the defconfig anymore. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_SMP for pseries/ppc64/powernvMichael Ellerman
In commit 40e275653e2c ("powerpc/powernv: Always enable SMP when building powernv") and 270e2dc9b803 ("powerpc/pseries: Always enable SMP when building pseries") we forced CONFIG_SMP on for some configs. Therefore we don't need to set it in those configs anymore. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop unnecessary CONFIG_UPROBE_EVENTMichael Ellerman
In commit 6b0b7551428e ("perf/core: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS") it was renamed to CONFIG_UPROBE_EVENTS. Additionally it's default y, and we have the prerequisites enabled, so we don't need it in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop unnecessary CONFIG_NUMA_BALANCING_DEFAULT_ENABLEDMichael Ellerman
In commit 9654f95a081a ("powerpc: Enable NUMA balancing in pseries[_le]_defconfig") we added CONFIG_NUMA_BALANCING_DEFAULT_ENABLED to our defconfigs. But it's already enabled by default, so drop it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_DEVPTS_MULTIPLE_INSTANCESMichael Ellerman
Since commit eedf265aa003 ("devpts: Make each mount of devpts an independent filesystem.") we no longer need to set CONFIG_DEVPTS_MULTIPLE_INSTANCES in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_CRYPTO_GCMMichael Ellerman
Since commit 00b9cfa3ff38 ("mac80111: Add GCMP and GCMP-256 ciphers") we no longer need to set CONFIG_CRYPTO_GCM in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Drop no longer needed CONFIG_CRYPTO_NULL in g5 / c2kMichael Ellerman
Since commit 3491244c6298 ("crypto: echainiv - Set Kconfig default to m") we no longer need to set CONFIG_CRYPTO_NULL in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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