* v4.4-16.09-android-tmp: unsafe_[get|put]_user: change interface to use a error target label usercopy: remove page-spanning test for now usercopy: fix overlap check for kernel text mm/slub: support left redzone Linux 4.4.21 lib/mpi: mpi_write_sgl(): fix skipping of leading zero limbs regulator: anatop: allow regulator to be in bypass mode hwrng: exynos - Disable runtime PM on probe failure cpufreq: Fix GOV_LIMITS handling for the userspace governor metag: Fix atomic_*_return inline asm constraints scsi: fix upper bounds check of sense key in scsi_sense_key_string() ALSA: timer: fix NULL pointer dereference on memory allocation failure ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE ALSA: timer: fix NULL pointer dereference in read()/ioctl() race ALSA: hda - Enable subwoofer on Dell Inspiron 7559 ALSA: hda - Add headset mic quirk for Dell Inspiron 5468 ALSA: rawmidi: Fix possible deadlock with virmidi registration ALSA: fireworks: accessing to user space outside spinlock ALSA: firewire-tascam: accessing to user space outside spinlock ALSA: usb-audio: Add sample rate inquiry quirk for B850V3 CP2114 crypto: caam - fix IV loading for authenc (giv)decryption uprobes: Fix the memcg accounting x86/apic: Do not init irq remapping if ioapic is disabled vhost/scsi: fix reuse of &vq->iov[out] in response bcache: RESERVE_PRIO is too small by one when prio_buckets() is a power of two. ubifs: Fix assertion in layout_in_gaps() ovl: fix workdir creation ovl: listxattr: use strnlen() ovl: remove posix_acl_default from workdir ovl: don't copy up opaqueness wrappers for ->i_mutex access lustre: remove unused declaration timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING timekeeping: Cap array access in timekeeping_debug xfs: fix superblock inprogress check ASoC: atmel_ssc_dai: Don't unconditionally reset SSC on stream startup drm/msm: fix use of copy_from_user() while holding spinlock drm: Reject page_flip for !DRIVER_MODESET drm/radeon: fix radeon_move_blit on 32bit systems s390/sclp_ctl: fix potential information leak with /dev/sclp rds: fix an infoleak in rds_inc_info_copy powerpc/tm: Avoid SLB faults in treclaim/trecheckpoint when RI=0 nvme: Call pci_disable_device on the error path. cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork block: make sure a big bio is split into at most 256 bvecs block: Fix race triggered by blk_set_queue_dying() ext4: avoid modifying checksum fields directly during checksum verification ext4: avoid deadlock when expanding inode size ext4: properly align shifted xattrs when expanding inodes ext4: fix xattr shifting when expanding inodes part 2 ext4: fix xattr shifting when expanding inodes ext4: validate that metadata blocks do not overlap superblock net: Use ns_capable_noaudit() when determining net sysctl permissions kernel: Add noaudit variant of ns_capable() KEYS: Fix ASN.1 indefinite length object parsing drivers:hv: Lock access to hyperv_mmio resource tree cxlflash: Move to exponential back-off when cmd_room is not available netfilter: x_tables: check for size overflow drm/amdgpu/cz: enable/disable vce dpm even if vce pg is disabled cred: Reject inodes with invalid ids in set_create_file_as() fs: Check for invalid i_uid in may_follow_link() IB/IPoIB: Do not set skb truesize since using one linearskb udp: properly support MSG_PEEK with truncated buffers crypto: nx-842 - Mask XERS0 bit in return value cxlflash: Fix to avoid virtual LUN failover failure cxlflash: Fix to escalate LINK_RESET also on port 1 tipc: fix nl compat regression for link statistics tipc: fix an infoleak in tipc_nl_compat_link_dump netfilter: x_tables: check for size overflow Bluetooth: Add support for Intel Bluetooth device 8265 [8087:0a2b] drm/i915: Check VBT for port presence in addition to the strap on VLV/CHV drm/i915: Only ignore eDP ports that are connected Input: xpad - move pending clear to the correct location net: thunderx: Fix link status reporting x86/hyperv: Avoid reporting bogus NMI status for Gen2 instances crypto: vmx - IV size failing on skcipher API tda10071: Fix dependency to REGMAP_I2C crypto: vmx - Fix ABI detection crypto: vmx - comply with ABIs that specify vrsave as reserved. HID: core: prevent out-of-bound readings lpfc: Fix DMA faults observed upon plugging loopback connector block: fix blk_rq_get_max_sectors for driver private requests irqchip/gicv3-its: numa: Enable workaround for Cavium thunderx erratum 23144 clocksource: Allow unregistering the watchdog btrfs: Continue write in case of can_not_nocow blk-mq: End unstarted requests on dying queue cxlflash: Fix to resolve dead-lock during EEH recovery drm/radeon/mst: fix regression in lane/link handling. ecryptfs: fix handling of directory opening ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps drm: Balance error path for GEM handle allocation ntp: Fix ADJ_SETOFFSET being used w/ ADJ_NANO time: Verify time values in adjtimex ADJ_SETOFFSET to avoid overflow Input: xpad - correctly handle concurrent LED and FF requests net: thunderx: Fix receive packet stats net: thunderx: Fix for multiqset not configured upon interface toggle perf/x86/cqm: Fix CQM memory leak and notifier leak perf/x86/cqm: Fix CQM handling of grouping events into a cache_group s390/crypto: provide correct file mode at device register. proc: revert /proc/<pid>/maps [stack:TID] annotation intel_idle: Support for Intel Xeon Phi Processor x200 Product Family cxlflash: Fix to avoid unnecessary scan with internal LUNs Drivers: hv: vmbus: don't manipulate with clocksources on crash Drivers: hv: vmbus: avoid scheduling in interrupt context in vmbus_initiate_unload() Drivers: hv: vmbus: avoid infinite loop in init_vp_index() arcmsr: fixes not release allocated resource arcmsr: fixed getting wrong configuration data s390/pci_dma: fix DMA table corruption with > 4 TB main memory net/mlx5e: Don't modify CQ before it was created net/mlx5e: Don't try to modify CQ moderation if it is not supported mmc: sdhci: Do not BUG on invalid vdd UVC: Add support for R200 depth camera sched/numa: Fix use-after-free bug in the task_numa_compare ALSA: hda - add codec support for Kabylake display audio codec drm/i915: Fix hpd live status bits for g4x tipc: fix nullptr crash during subscription cancel arm64: Add workaround for Cavium erratum 27456 net: thunderx: Fix for Qset error due to CQ full drm/radeon: fix dp link rate selection (v2) drm/amdgpu: fix dp link rate selection (v2) qla2xxx: Use ATIO type to send correct tmr response mmc: sdhci: 64-bit DMA actually has 4-byte alignment drm/atomic: Do not unset crtc when an encoder is stolen drm/i915/skl: Add missing SKL ids drm/i915/bxt: update list of PCIIDs hrtimer: Catch illegal clockids i40e/i40evf: Fix RSS rx-flow-hash configuration through ethtool mpt3sas: Fix for Asynchronous completion of timedout IO and task abort of timedout IO. mpt3sas: A correction in unmap_resources net: cavium: liquidio: fix check for in progress flag arm64: KVM: Configure TCR_EL2.PS at runtime irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor pwm: lpc32xx: fix and simplify duty cycle and period calculations pwm: lpc32xx: correct number of PWM channels from 2 to 1 pwm: fsl-ftm: Fix clock enable/disable when using PM megaraid_sas: Add an i/o barrier megaraid_sas: Fix SMAP issue megaraid_sas: Do not allow PCI access during OCR s390/cio: update measurement characteristics s390/cio: ensure consistent measurement state s390/cio: fix measurement characteristics memleak qeth: initialize net_device with carrier off lpfc: Fix external loopback failure. lpfc: Fix mbox reuse in PLOGI completion lpfc: Fix RDP Speed reporting. lpfc: Fix crash in fcp command completion path. lpfc: Fix driver crash when module parameter lpfc_fcp_io_channel set to 16 lpfc: Fix RegLogin failed error seen on Lancer FC during port bounce lpfc: Fix the FLOGI discovery logic to comply with T11 standards lpfc: Fix FCF Infinite loop in lpfc_sli4_fcf_rr_next_index_get. cxl: Enable PCI device ID for future IBM CXL adapter cxl: fix build for GCC 4.6.x cxlflash: Enable device id for future IBM CXL adapter cxlflash: Resolve oops in wait_port_offline cxlflash: Fix to resolve cmd leak after host reset cxl: Fix DSI misses when the context owning task exits cxl: Fix possible idr warning when contexts are released Drivers: hv: vmbus: fix rescind-offer handling for device without a driver Drivers: hv: vmbus: serialize process_chn_event() and vmbus_close_internal() Drivers: hv: vss: run only on supported host versions drivers/hv: cleanup synic msrs if vmbus connect failed Drivers: hv: util: catch allocation errors tools: hv: report ENOSPC errors in hv_fcopy_daemon Drivers: hv: utils: run polling callback always in interrupt context Drivers: hv: util: Increase the timeout for util services lightnvm: fix missing grown bad block type lightnvm: fix locking and mempool in rrpc_lun_gc lightnvm: unlock rq and free ppa_list on submission fail lightnvm: add check after mempool allocation lightnvm: fix incorrect nr_free_blocks stat lightnvm: fix bio submission issue cxlflash: a couple off by one bugs fm10k: Cleanup exception handling for mailbox interrupt fm10k: Cleanup MSI-X interrupts in case of failure fm10k: reinitialize queuing scheme after calling init_hw fm10k: always check init_hw for errors fm10k: reset max_queues on init_hw_vf failure fm10k: Fix handling of NAPI budget when multiple queues are enabled per vector fm10k: Correct MTU for jumbo frames fm10k: do not assume VF always has 1 queue clk: xgene: Fix divider with non-zero shift value e1000e: fix division by zero on jumbo MTUs e1000: fix data race between tx_ring->next_to_clean ixgbe: Fix handling of NAPI budget when multiple queues are enabled per vector igb: fix NULL derefs due to skipped SR-IOV enabling igb: use the correct i210 register for EEMNGCTL igb: don't unmap NULL hw_addr i40e: Fix Rx hash reported to the stack by our driver i40e: clean whole mac filter list i40evf: check rings before freeing resources i40e: don't add zero MAC filter i40e: properly delete VF MAC filters i40e: Fix memory leaks, sideband filter programming i40e: fix: do not sleep in netdev_ops i40e/i40evf: Fix RS bit update in Tx path and disable force WB workaround i40evf: handle many MAC filters correctly i40e: Workaround fix for mss < 256 issue UPSTREAM: audit: fix a double fetch in audit_log_single_execve_arg() UPSTREAM: ARM: 8494/1: mm: Enable PXN when running non-LPAE kernel on LPAE processor FIXUP: sched/tune: update accouting before CPU capacity FIXUP: sched/tune: add fixes missing from a previous patch arm: Fix #if/#ifdef typo in topology.c arm: Fix build error "conflicting types for 'scale_cpu_capacity'" sched/walt: use do_div instead of division operator DEBUG: cpufreq: fix cpu_capacity tracing build for non-smp systems sched/walt: include missing header for arm_timer_read_counter() cpufreq: Kconfig: Fixup incorrect selection by CPU_FREQ_DEFAULT_GOV_SCHED sched/fair: Avoid redundant idle_cpu() call in update_sg_lb_stats() FIXUP: sched: scheduler-driven cpu frequency selection sched/rt: Add Kconfig option to enable panicking for RT throttling sched/rt: print RT tasks when RT throttling is activated UPSTREAM: sched: Fix a race between __kthread_bind() and sched_setaffinity() sched/fair: Favor higher cpus only for boosted tasks vmstat: make vmstat_updater deferrable again and shut down on idle sched/fair: call OPP update when going idle after migration sched/cpufreq_sched: fix thermal capping events sched/fair: Picking cpus with low OPPs for tasks that prefer idle CPUs FIXUP: sched/tune: do initialization as a postcore_initicall DEBUG: sched: add tracepoint for RD overutilized sched/tune: Introducing a new schedtune attribute prefer_idle sched: use util instead of capacity to select busy cpu arch_timer: add error handling when the MPM global timer is cleared FIXUP: sched: Fix double-release of spinlock in move_queued_task FIXUP: sched/fair: Fix hang during suspend in sched_group_energy FIXUP: sched: fix SchedFreq integration for both PELT and WALT sched: EAS: Avoid causing spikes to max-freq unnecessarily FIXUP: sched: fix set_cfs_cpu_capacity when WALT is in use sched/walt: Accounting for number of irqs pending on each core sched: Introduce Window Assisted Load Tracking (WALT) sched/tune: fix PB and PC cuts indexes definition sched/fair: optimize idle cpu selection for boosted tasks FIXUP: sched/tune: fix accounting for runnable tasks sched/tune: use a single initialisation function sched/{fair,tune}: simplify fair.c code FIXUP: sched/tune: fix payoff calculation for boost region sched/tune: Add support for negative boost values FIX: sched/tune: move schedtune_nornalize_energy into fair.c FIX: sched/tune: update usage of boosted task utilisation on CPU selection sched/fair: add tunable to set initial task load sched/fair: add tunable to force selection at cpu granularity sched: EAS: take cstate into account when selecting idle core sched/cpufreq_sched: Consolidated update FIXUP: sched: fix build for non-SMP target DEBUG: sched/tune: add tracepoint on P-E space filtering DEBUG: sched/tune: add tracepoint for energy_diff() values DEBUG: sched/tune: add tracepoint for task boost signal arm: topology: Define TC2 energy and provide it to the scheduler CHROMIUM: sched: update the average of nr_running DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values DEBUG: schedtune: add tracepoint for CPU boost signal DEBUG: schedtune: add tracepoint for SchedTune configuration update DEBUG: sched: add energy procfs interface DEBUG: sched,cpufreq: add cpu_capacity change tracepoint DEBUG: sched: add tracepoint for CPU load/util signals DEBUG: sched: add tracepoint for task load/util signals DEBUG: sched: add tracepoint for cpu/freq scale invariance sched/fair: filter energy_diff() based on energy_payoff value sched/tune: add support to compute normalized energy sched/fair: keep track of energy/capacity variations sched/fair: add boosted task utilization sched/{fair,tune}: track RUNNABLE tasks impact on per CPU boost value sched/tune: compute and keep track of per CPU boost value sched/tune: add initial support for CGroups based boosting sched/fair: add boosted CPU usage sched/fair: add function to convert boost value into "margin" sched/tune: add sysctl interface to define a boost value sched/tune: add detailed documentation fixup! sched/fair: jump to max OPP when crossing UP threshold fixup! sched: scheduler-driven cpu frequency selection sched: rt scheduler sets capacity requirement sched: deadline: use deadline bandwidth in scale_rt_capacity sched: remove call of sched_avg_update from sched_rt_avg_update sched/cpufreq_sched: add trace events sched/fair: jump to max OPP when crossing UP threshold sched/fair: cpufreq_sched triggers for load balancing sched/{core,fair}: trigger OPP change request on fork() sched/fair: add triggers for OPP change requests sched: scheduler-driven cpu frequency selection cpufreq: introduce cpufreq_driver_is_slow sched: Consider misfit tasks when load-balancing sched: Add group_misfit_task load-balance type sched: Add per-cpu max capacity to sched_group_capacity sched: Do eas idle balance regardless of the rq avg idle value arm64: Enable max freq invariant scheduler load-tracking and capacity support arm: Enable max freq invariant scheduler load-tracking and capacity support sched: Update max cpu capacity in case of max frequency constraints cpufreq: Max freq invariant scheduler load-tracking and cpu capacity support arm64, topology: Updates to use DT bindings for EAS costing data sched: Support for extracting EAS energy costs from DT Documentation: DT bindings for energy model cost data required by EAS sched: Disable energy-unfriendly nohz kicks sched: Consider a not over-utilized energy-aware system as balanced sched: Energy-aware wake-up task placement sched: Determine the current sched_group idle-state sched, cpuidle: Track cpuidle state index in the scheduler sched: Add over-utilization/tipping point indicator sched: Estimate energy impact of scheduling decisions sched: Extend sched_group_energy to test load-balancing decisions sched: Calculate energy consumption of sched_group sched: Highest energy aware balancing sched_domain level pointer sched: Relocated cpu_util() and change return type sched: Compute cpu capacity available at current frequency arm64: Cpu invariant scheduler load-tracking and capacity support arm: Cpu invariant scheduler load-tracking and capacity support sched: Introduce SD_SHARE_CAP_STATES sched_domain flag sched: Initialize energy data structures sched: Introduce energy data structures sched: Make energy awareness a sched feature sched: Documentation for scheduler energy cost model sched: Prevent unnecessary active balance of single task in sched group sched: Enable idle balance to pull single task towards cpu with higher capacity sched: Consider spare cpu capacity at task wake-up sched: Add cpu capacity awareness to wakeup balancing sched: Store system-wide maximum cpu capacity in root domain arm: Update arch_scale_cpu_capacity() to reflect change to define arm64: Enable frequency invariant scheduler load-tracking support arm: Enable frequency invariant scheduler load-tracking support cpufreq: Frequency invariant scheduler load-tracking support sched/fair: Fix new task's load avg removed from source CPU in wake_up_new_task() FROMLIST: pstore: drop pmsg bounce buffer UPSTREAM: usercopy: remove page-spanning test for now UPSTREAM: usercopy: force check_object_size() inline BACKPORT: usercopy: fold builtin_const check into inline function UPSTREAM: x86/uaccess: force copy_*_user() to be inlined UPSTREAM: HID: core: prevent out-of-bound readings Android: Fix build breakages. UPSTREAM: tty: Prevent ldisc drivers from re-using stale tty fields UPSTREAM: netfilter: nfnetlink: correctly validate length of batch messages cpuset: Make cpusets restore on hotplug UPSTREAM: mm/slub: support left redzone UPSTREAM: Make the hardened user-copy code depend on having a hardened allocator Android: MMC/UFS IO Latency Histograms. UPSTREAM: usercopy: fix overlap check for kernel text UPSTREAM: usercopy: avoid potentially undefined behavior in pointer math UPSTREAM: unsafe_[get|put]_user: change interface to use a error target label BACKPORT: arm64: mm: fix location of _etext BACKPORT: ARM: 8583/1: mm: fix location of _etext BACKPORT: Don't show empty tag stats for unprivileged uids UPSTREAM: tcp: fix use after free in tcp_xmit_retransmit_queue() ANDROID: base-cfg: drop SECCOMP_FILTER config UPSTREAM: [media] xc2028: unlock on error in xc2028_set_config() UPSTREAM: [media] xc2028: avoid use after free ANDROID: base-cfg: enable SECCOMP config ANDROID: rcu_sync: Export rcu_sync_lockdep_assert RFC: FROMLIST: cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork RFC: FROMLIST: cgroup: avoid synchronize_sched() in __cgroup_procs_write() RFC: FROMLIST: locking/percpu-rwsem: Optimize readers and reduce global impact net: ipv6: Fix ping to link-local addresses. ipv6: fix endianness error in icmpv6_err ANDROID: dm: android-verity: Allow android-verity to be compiled as an independent module backporting: a brief introduce of backported feautures on 4.4 Linux 4.4.20 sysfs: correctly handle read offset on PREALLOC attrs hwmon: (iio_hwmon) fix memory leak in name attribute ALSA: line6: Fix POD sysfs attributes segfault ALSA: line6: Give up on the lock while URBs are released. ALSA: line6: Remove double line6_pcm_release() after failed acquire. ACPI / SRAT: fix SRAT parsing order with both LAPIC and X2APIC present ACPI / sysfs: fix error code in get_status() ACPI / drivers: replace acpi_probe_lock spinlock with mutex ACPI / drivers: fix typo in ACPI_DECLARE_PROBE_ENTRY macro staging: comedi: ni_mio_common: fix wrong insn_write handler staging: comedi: ni_mio_common: fix AO inttrig backwards compatibility staging: comedi: comedi_test: fix timer race conditions staging: comedi: daqboard2000: bug fix board type matching code USB: serial: option: add WeTelecom 0x6802 and 0x6803 products USB: serial: option: add WeTelecom WM-D200 USB: serial: mos7840: fix non-atomic allocation in write path USB: serial: mos7720: fix non-atomic allocation in write path USB: fix typo in wMaxPacketSize validation usb: chipidea: udc: don't touch DP when controller is in host mode USB: avoid left shift by -1 dmaengine: usb-dmac: check CHCR.DE bit in usb_dmac_isr_channel() crypto: qat - fix aes-xts key sizes crypto: nx - off by one bug in nx_of_update_msc() Input: i8042 - set up shared ps2_cmd_mutex for AUX ports Input: i8042 - break load dependency between atkbd/psmouse and i8042 Input: tegra-kbc - fix inverted reset logic btrfs: properly track when rescan worker is running btrfs: waiting on qgroup rescan should not always be interruptible fs/seq_file: fix out-of-bounds read gpio: Fix OF build problem on UM usb: renesas_usbhs: gadget: fix return value check in usbhs_mod_gadget_probe() megaraid_sas: Fix probing cards without io port mpt3sas: Fix resume on WarpDrive flash cards cdc-acm: fix wrong pipe type on rx interrupt xfers i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer() mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper aacraid: Check size values after double-fetch from user ARC: Elide redundant setup of DMA callbacks ARC: Call trace_hardirqs_on() before enabling irqs ARC: use correct offset in pt_regs for saving/restoring user mode r25 ARC: build: Better way to detect ISA compatible toolchain drm/i915: fix aliasing_ppgtt leak drm/amdgpu: record error code when ring test failed drm/amd/amdgpu: sdma resume fail during S4 on CI drm/amdgpu: skip TV/CV in display parsing drm/amdgpu: avoid a possible array overflow drm/amdgpu: fix amdgpu_move_blit on 32bit systems drm/amdgpu: Change GART offset to 64-bit iio: fix sched WARNING "do not call blocking ops when !TASK_RUNNING" sched/nohz: Fix affine unpinned timers mess sched/cputime: Fix NO_HZ_FULL getrusage() monotonicity regression of: fix reference counting in of_graph_get_endpoint_by_regs arm64: dts: rockchip: add reset saradc node for rk3368 SoCs mac80211: fix purging multicast PS buffer queue s390/dasd: fix hanging device after clear subchannel EDAC: Increment correct counter in edac_inc_ue_error() pinctrl/amd: Remove the default de-bounce time iommu/arm-smmu: Don't BUG() if we find aborting STEs with disable_bypass iommu/arm-smmu: Fix CMDQ error handling iommu/dma: Don't put uninitialised IOVA domains xhci: Make sure xhci handles USB_SPEED_SUPER_PLUS devices. USB: serial: ftdi_sio: add PIDs for Ivium Technologies devices USB: serial: ftdi_sio: add device ID for WICED USB UART dev board USB: serial: option: add support for Telit LE920A4 USB: serial: option: add D-Link DWM-156/A3 USB: serial: fix memleak in driver-registration error path xhci: don't dereference a xhci member after removing xhci usb: xhci: Fix panic if disconnect xhci: always handle "Command Ring Stopped" events usb/gadget: fix gadgetfs aio support. usb: gadget: fsl_qe_udc: off by one in setup_received_handle() USB: validate wMaxPacketValue entries in endpoint descriptors usb: renesas_usbhs: Use dmac only if the pipe type is bulk usb: renesas_usbhs: clear the BRDYSTS in usbhsg_ep_enable() USB: hub: change the locking in hub_activate USB: hub: fix up early-exit pathway in hub_activate usb: hub: Fix unbalanced reference count/memory leak/deadlocks usb: define USB_SPEED_SUPER_PLUS speed for SuperSpeedPlus USB3.1 devices usb: dwc3: gadget: increment request->actual once usb: dwc3: pci: add Intel Kabylake PCI ID usb: misc: usbtest: add fix for driver hang usb: ehci: change order of register cleanup during shutdown crypto: caam - defer aead_set_sh_desc in case of zero authsize crypto: caam - fix echainiv(authenc) encrypt shared descriptor crypto: caam - fix non-hmac hashes genirq/msi: Make sure PCI MSIs are activated early genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP um: Don't discard .text.exit section ACPI / CPPC: Prevent cpc_desc_ptr points to the invalid data ACPI: CPPC: Return error if _CPC is invalid on a CPU mmc: sdhci-acpi: Reduce Baytrail eMMC/SD/SDIO hangs PCI: Limit config space size for Netronome NFP4000 PCI: Add Netronome NFP4000 PF device ID PCI: Limit config space size for Netronome NFP6000 family PCI: Add Netronome vendor and device IDs PCI: Support PCIe devices with short cfg_size NVMe: Don't unmap controller registers on reset ALSA: hda - Manage power well properly for resume libnvdimm, nd_blk: mask off reserved status bits perf intel-pt: Fix occasional decoding errors when tracing system-wide vfio/pci: Fix NULL pointer oops in error interrupt setup handling virtio: fix memory leak in virtqueue_add() parisc: Fix order of EREFUSED define in errno.h arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO ALSA: usb-audio: Add quirk for ELP HD USB Camera ALSA: usb-audio: Add a sample rate quirk for Creative Live! Cam Socialize HD (VF0610) powerpc/eeh: eeh_pci_enable(): fix checking of post-request state SUNRPC: allow for upcalls for same uid but different gss service SUNRPC: Handle EADDRNOTAVAIL on connection failures tools/testing/nvdimm: fix SIGTERM vs hotplug crash uprobes/x86: Fix RIP-relative handling of EVEX-encoded instructions x86/mm: Disable preemption during CR3 read+write hugetlb: fix nr_pmds accounting with shared page tables mm: SLUB hardened usercopy support mm: SLAB hardened usercopy support s390/uaccess: Enable hardened usercopy sparc/uaccess: Enable hardened usercopy powerpc/uaccess: Enable hardened usercopy ia64/uaccess: Enable hardened usercopy arm64/uaccess: Enable hardened usercopy ARM: uaccess: Enable hardened usercopy x86/uaccess: Enable hardened usercopy x86: remove more uaccess_32.h complexity x86: remove pointless uaccess_32.h complexity x86: fix SMAP in 32-bit environments Use the new batched user accesses in generic user string handling Add 'unsafe' user access functions for batched accesses x86: reorganize SMAP handling in user space accesses mm: Hardened usercopy mm: Implement stack frame object validation mm: Add is_migrate_cma_page Linux 4.4.19 Documentation/module-signing.txt: Note need for version info if reusing a key module: Invalidate signatures on force-loaded modules dm flakey: error READ bios during the down_interval rtc: s3c: Add s3c_rtc_{enable/disable}_clk in s3c_rtc_setfreq() lpfc: fix oops in lpfc_sli4_scmd_to_wqidx_distr() from lpfc_send_taskmgmt() ACPI / EC: Work around method reentrancy limit in ACPICA for _Qxx x86/platform/intel_mid_pci: Rework IRQ0 workaround PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset MIPS: hpet: Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES MIPS: Don't register r4k sched clock when CPUFREQ enabled MIPS: mm: Fix definition of R6 cache instruction SUNRPC: Don't allocate a full sockaddr_storage for tracing Input: elan_i2c - properly wake up touchpad on ASUS laptops target: Fix ordered task CHECK_CONDITION early exception handling target: Fix max_unmap_lba_count calc overflow target: Fix race between iscsi-target connection shutdown + ABORT_TASK target: Fix missing complete during ABORT_TASK + CMD_T_FABRIC_STOP target: Fix ordered task target_setup_cmd_from_cdb exception hang iscsi-target: Fix panic when adding second TCP connection to iSCSI session ubi: Fix race condition between ubi device creation and udev ubi: Fix early logging ubi: Make volume resize power cut aware of: fix memory leak related to safe_name() IB/mlx4: Fix memory leak if QP creation failed IB/mlx4: Fix error flow when sending mads under SRIOV IB/mlx4: Fix the SQ size of an RC QP IB/IWPM: Fix a potential skb leak IB/IPoIB: Don't update neigh validity for unresolved entries IB/SA: Use correct free function IB/mlx5: Return PORT_ERR in Active to Initializing tranisition IB/mlx5: Fix post send fence logic IB/mlx5: Fix entries check in mlx5_ib_resize_cq IB/mlx5: Fix returned values of query QP IB/mlx5: Fix entries checks in mlx5_ib_create_cq IB/mlx5: Fix MODIFY_QP command input structure ALSA: hda - Fix headset mic detection problem for two dell machines ALSA: hda: add AMD Bonaire AZ PCI ID with proper driver caps ALSA: hda/realtek - Can't adjust speaker's volume on a Dell AIO ALSA: hda: Fix krealloc() with __GFP_ZERO usage mm/hugetlb: avoid soft lockup in set_max_huge_pages() mtd: nand: fix bug writing 1 byte less than page size block: fix bdi vs gendisk lifetime mismatch block: add missing group association in bio-cloning functions metag: Fix __cmpxchg_u32 asm constraint for CMP ftrace/recordmcount: Work around for addition of metag magic but not relocations balloon: check the number of available pages in leak balloon drm/i915/dp: Revert "drm/i915/dp: fall back to 18 bpp when sink capability is unknown" drm/i915: Never fully mask the the EI up rps interrupt on SNB/IVB drm/edid: Add 6 bpc quirk for display AEO model 0. drm: Restore double clflush on the last partial cacheline drm/nouveau/fbcon: fix font width not divisible by 8 drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup drm/nouveau: check for supported chipset before booting fbdev off the hw drm/radeon: support backlight control for UNIPHY3 drm/radeon: fix firmware info version checks drm/radeon: Poll for both connect/disconnect on analog connectors drm/radeon: add a delay after ATPX dGPU power off drm/amdgpu/gmc7: add missing mullins case drm/amdgpu: fix firmware info version checks drm/amdgpu: Disable RPM helpers while reprobing connectors on resume drm/amdgpu: support backlight control for UNIPHY3 drm/amdgpu: Poll for both connect/disconnect on analog connectors drm/amdgpu: add a delay after ATPX dGPU power off w1:omap_hdq: fix regression netlabel: add address family checks to netlbl_{sock,req}_delattr() ARM: dts: sunxi: Add a startup delay for fixed regulator enabled phys audit: fix a double fetch in audit_log_single_execve_arg() iommu/amd: Update Alias-DTE in update_device_table() iommu/amd: Init unity mappings only for dma_ops domains iommu/amd: Handle IOMMU_DOMAIN_DMA in ops->domain_free call-back iommu/vt-d: Return error code in domain_context_mapping_one() iommu/exynos: Suppress unbinding to prevent system failure drm/i915: Don't complain about lack of ACPI video bios nfsd: don't return an unhashed lock stateid after taking mutex nfsd: Fix race between FREE_STATEID and LOCK nfs: don't create zero-length requests MIPS: KVM: Propagate kseg0/mapped tlb fault errors MIPS: KVM: Fix gfn range check in kseg0 tlb faults MIPS: KVM: Add missing gfn range check MIPS: KVM: Fix mapped fault broken commpage handling random: add interrupt callback to VMBus IRQ handler random: print a warning for the first ten uninitialized random users random: initialize the non-blocking pool via add_hwgenerator_randomness() CIFS: Fix a possible invalid memory access in smb2_query_symlink() cifs: fix crash due to race in hmac(md5) handling cifs: Check for existing directory when opening file with O_CREAT fs/cifs: make share unaccessible at root level mountable jbd2: make journal y2038 safe ARC: mm: don't loose PTE_SPECIAL in pte_modify() remoteproc: Fix potential race condition in rproc_add ovl: disallow overlayfs as upperdir HID: uhid: fix timeout when probe races with IO EDAC: Correct channel count limit Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU spi: pxa2xx: Clear all RFT bits in reset_sccr1() on Intel Quark i2c: efm32: fix a failure path in efm32_i2c_probe() s5p-mfc: Add release callback for memory region devs s5p-mfc: Set device name for reserved memory region devs hp-wmi: Fix wifi cannot be hard-unblocked dm: set DMF_SUSPENDED* _before_ clearing DMF_NOFLUSH_SUSPENDING sur40: fix occasional oopses on device close sur40: lower poll interval to fix occasional FPS drops to ~56 FPS Fix RC5 decoding with Fintek CIR chipset vb2: core: Skip planes array verification if pb is NULL videobuf2-v4l2: Verify planes array in buffer dequeueing media: dvb_ringbuffer: Add memory barriers media: usbtv: prevent access to free'd resources mfd: qcom_rpm: Parametrize also ack selector size mfd: qcom_rpm: Fix offset error for msm8660 intel_pstate: Fix MSR_CONFIG_TDP_x addressing in core_get_max_pstate() s390/cio: allow to reset channel measurement block KVM: nVMX: Fix memory corruption when using VMCS shadowing KVM: VMX: handle PML full VMEXIT that occurs during event delivery KVM: MTRR: fix kvm_mtrr_check_gfn_range_consistency page fault KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures arm64: mm: avoid fdt_check_header() before the FDT is fully mapped arm64: dts: rockchip: fixes the gic400 2nd region size for rk3368 pinctrl: cherryview: prevent concurrent access to GPIO controllers Bluetooth: hci_intel: Fix null gpio desc pointer dereference gpio: intel-mid: Remove potentially harmful code gpio: pca953x: Fix NBANK calculation for PCA9536 tty/serial: atmel: fix RS485 half duplex with DMA serial: samsung: Fix ERR pointer dereference on deferred probe tty: serial: msm: Don't read off end of tx fifo arm64: Fix incorrect per-cpu usage for boot CPU arm64: debug: unmask PSTATE.D earlier arm64: kernel: Save and restore UAO and addr_limit on exception entry USB: usbfs: fix potential infoleak in devio usb: renesas_usbhs: fix NULL pointer dereference in xfer_work() USB: serial: option: add support for Telit LE910 PID 0x1206 usb: dwc3: fix for the isoc transfer EP_BUSY flag usb: quirks: Add no-lpm quirk for Elan usb: renesas_usbhs: protect the CFIFOSEL setting in usbhsg_ep_enable() usb: f_fs: off by one bug in _ffs_func_bind() usb: gadget: avoid exposing kernel stack UPSTREAM: usb: gadget: configfs: add mutex lock before unregister gadget ANDROID: dm-verity: adopt changes made to dm callbacks UPSTREAM: ecryptfs: fix handling of directory opening ANDROID: net: core: fix UID-based routing ANDROID: net: fib: remove duplicate assignment FROMLIST: proc: Fix timerslack_ns CAP_SYS_NICE check when adjusting self ANDROID: dm verity fec: pack the fec_header structure ANDROID: dm: android-verity: Verify header before fetching table ANDROID: dm: allow adb disable-verity only in userdebug ANDROID: dm: mount as linear target if eng build ANDROID: dm: use default verity public key ANDROID: dm: fix signature verification flag ANDROID: dm: use name_to_dev_t ANDROID: dm: rename dm-linear methods for dm-android-verity ANDROID: dm: Minor cleanup ANDROID: dm: Mounting root as linear device when verity disabled ANDROID: dm-android-verity: Rebase on top of 4.1 ANDROID: dm: Add android verity target ANDROID: dm: fix dm_substitute_devices() ANDROID: dm: Rebase on top of 4.1 CHROMIUM: dm: boot time specification of dm= Implement memory_state_time, used by qcom,cpubw Revert "panic: Add board ID to panic output" usb: gadget: f_accessory: remove duplicate endpoint alloc BACKPORT: brcmfmac: defer DPC processing during probe FROMLIST: proc: Add LSM hook checks to /proc/<tid>/timerslack_ns FROMLIST: proc: Relax /proc/<tid>/timerslack_ns capability requirements UPSTREAM: ppp: defer netns reference release for ppp channel cpuset: Add allow_attach hook for cpusets on android. UPSTREAM: KEYS: Fix ASN.1 indefinite length object parsing ANDROID: sdcardfs: fix itnull.cocci warnings android-recommended.cfg: enable fstack-protector-strong Linux 4.4.18 mm: memcontrol: fix memcg id ref counter on swap charge move mm: memcontrol: fix swap counter leak on swapout from offline cgroup mm: memcontrol: fix cgroup creation failure after many small jobs ext4: fix reference counting bug on block allocation error ext4: short-cut orphan cleanup on error ext4: validate s_reserved_gdt_blocks on mount ext4: don't call ext4_should_journal_data() on the journal inode ext4: fix deadlock during page writeback ext4: check for extents that wrap around crypto: scatterwalk - Fix test in scatterwalk_done crypto: gcm - Filter out async ghash if necessary fs/dcache.c: avoid soft-lockup in dput() fuse: fix wrong assignment of ->flags in fuse_send_init() fuse: fuse_flush must check mapping->flags for errors fuse: fsync() did not return IO errors sysv, ipc: fix security-layer leaking block: fix use-after-free in seq file x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace drm/i915: Pretend cursor is always on for ILK-style WM calculations (v2) x86/mm/pat: Fix BUG_ON() in mmap_mem() on QEMU/i386 x86/pat: Document the PAT initialization sequence x86/xen, pat: Remove PAT table init code from Xen x86/mtrr: Fix PAT init handling when MTRR is disabled x86/mtrr: Fix Xorg crashes in Qemu sessions x86/mm/pat: Replace cpu_has_pat with boot_cpu_has() x86/mm/pat: Add pat_disable() interface x86/mm/pat: Add support of non-default PAT MSR setting devpts: clean up interface to pty drivers random: strengthen input validation for RNDADDTOENTCNT apparmor: fix ref count leak when profile sha1 hash is read Revert "s390/kdump: Clear subchannel ID to signal non-CCW/SCSI IPL" KEYS: 64-bit MIPS needs to use compat_sys_keyctl for 32-bit userspace arm: oabi compat: add missing access checks cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind i2c: i801: Allow ACPI SystemIO OpRegion to conflict with PCI BAR x86/mm/32: Enable full randomization on i386 and X86_32 HID: sony: do not bail out when the sixaxis refuses the output report PNP: Add Broadwell to Intel MCH size workaround PNP: Add Haswell-ULT to Intel MCH size workaround scsi: ignore errors from scsi_dh_add_device() ipath: Restrict use of the write() interface tcp: consider recv buf for the initial window scale qed: Fix setting/clearing bit in completion bitmap net/irda: fix NULL pointer dereference on memory allocation failure net: bgmac: Fix infinite loop in bgmac_dma_tx_add() bonding: set carrier off for devices created through netlink ipv4: reject RTNH_F_DEAD and RTNH_F_LINKDOWN from user space tcp: enable per-socket rate limiting of all 'challenge acks' tcp: make challenge acks less predictable arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE Linux 4.4.17 vfs: fix deadlock in file_remove_privs() on overlayfs intel_th: Fix a deadlock in modprobing intel_th: pci: Add Kaby Lake PCH-H support net: mvneta: set real interrupt per packet for tx_done libceph: apply new_state before new_up_client on incrementals libata: LITE-ON CX1-JB256-HP needs lower max_sectors i2c: mux: reg: wrong condition checked for of_address_to_resource return value posix_cpu_timer: Exit early when process has been reaped media: fix airspy usb probe error path ipr: Clear interrupt on croc/crocodile when running with LSI SCSI: fix new bug in scsi_dev_info_list string matching RDS: fix rds_tcp_init() error path can: fix oops caused by wrong rtnl dellink usage can: fix handling of unmodifiable configuration options fix can: c_can: Update D_CAN TX and RX functions to 32 bit - fix Altera Cyclone access can: at91_can: RX queue could get stuck at high bus load perf/x86: fix PEBS issues on Intel Atom/Core2 ovl: handle ATTR_KILL* sched/fair: Fix effective_load() to consistently use smoothed load mmc: block: fix packed command header endianness block: fix use-after-free in sys_ioprio_get() qeth: delete napi struct when removing a qeth device platform/chrome: cros_ec_dev - double fetch bug in ioctl clk: rockchip: initialize flags of clk_init_data in mmc-phase clock spi: sun4i: fix FIFO limit spi: sunxi: fix transfer timeout namespace: update event counter when umounting a deleted dentry 9p: use file_dentry() ext4: verify extent header depth ecryptfs: don't allow mmap when the lower fs doesn't support it Revert "ecryptfs: forbid opening files without mmap handler" locks: use file_inode() power_supply: power_supply_read_temp only if use_cnt > 0 cgroup: set css->id to -1 during init pinctrl: imx: Do not treat a PIN without MUX register as an error pinctrl: single: Fix missing flush of posted write for a wakeirq pvclock: Add CPU barriers to get correct version value Input: tsc200x - report proper input_dev name Input: xpad - validate USB endpoint count during probe Input: wacom_w8001 - w8001_MAX_LENGTH should be 13 Input: xpad - fix oops when attaching an unknown Xbox One gamepad Input: elantech - add more IC body types to the list Input: vmmouse - remove port reservation ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt ALSA: timer: Fix leak in events via snd_timer_user_ccallback ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS xenbus: don't bail early from xenbus_dev_request_and_reply() xenbus: don't BUG() on user mode induced condition xen/pciback: Fix conf_space read/write overlap check. ARC: unwind: ensure that .debug_frame is generated (vs. .eh_frame) arc: unwind: warn only once if DW2_UNWIND is disabled kernel/sysrq, watchdog, sched/core: Reset watchdog on all CPUs while processing sysrq-w pps: do not crash when failed to register vmlinux.lds: account for destructor sections mm, meminit: ensure node is online before checking whether pages are uninitialised mm, meminit: always return a valid node from early_pfn_to_nid mm, compaction: prevent VM_BUG_ON when terminating freeing scanner fs/nilfs2: fix potential underflow in call to crc32_le mm, compaction: abort free scanner if split fails mm, sl[au]b: add __GFP_ATOMIC to the GFP reclaim mask dmaengine: at_xdmac: double FIFO flush needed to compute residue dmaengine: at_xdmac: fix residue corruption dmaengine: at_xdmac: align descriptors on 64 bits x86/quirks: Add early quirk to reset Apple AirPort card x86/quirks: Reintroduce scanning of secondary buses x86/quirks: Apply nvidia_bugs quirk only on root bus USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails Conflicts: arch/arm/kernel/topology.c arch/arm64/include/asm/arch_gicv3.h arch/arm64/kernel/topology.c block/bio.c drivers/cpufreq/Kconfig drivers/md/Makefile drivers/media/dvb-core/dvb_ringbuffer.c drivers/media/tuners/tuner-xc2028.c drivers/misc/Kconfig drivers/misc/Makefile drivers/mmc/core/host.c drivers/scsi/ufs/ufshcd.c drivers/scsi/ufs/ufshcd.h drivers/usb/dwc3/gadget.c drivers/usb/gadget/configfs.c fs/ecryptfs/file.c include/linux/mmc/core.h include/linux/mmc/host.h include/linux/mmzone.h include/linux/sched.h include/linux/sched/sysctl.h include/trace/events/power.h include/trace/events/sched.h init/Kconfig kernel/cpuset.c kernel/exit.c kernel/sched/Makefile kernel/sched/core.c kernel/sched/cputime.c kernel/sched/fair.c kernel/sched/features.h kernel/sched/rt.c kernel/sched/sched.h kernel/sched/stop_task.c kernel/sched/tune.c lib/Kconfig.debug mm/Makefile mm/vmstat.c Change-Id: I243a43231ca56a6362076fa6301827e1b0493be5 Signed-off-by: Runmin Wang <runminw@codeaurora.org>
2254 lines
65 KiB
Text
2254 lines
65 KiB
Text
config ARM
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bool
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default y
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select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
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select ARCH_HAS_ELF_RANDOMIZE
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select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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select ARCH_HAVE_CUSTOM_GPIO_H
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select ARCH_HAS_GCOV_PROFILE_ALL
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select ARCH_MIGHT_HAVE_PC_PARPORT
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select ARCH_SUPPORTS_ATOMIC_RMW
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select ARCH_USE_BUILTIN_BSWAP
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select ARCH_USE_CMPXCHG_LOCKREF
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select ARCH_WANT_IPC_PARSE_VERSION
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select BUILDTIME_EXTABLE_SORT if MMU
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select CLONE_BACKWARDS
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select CPU_PM if (SUSPEND || CPU_IDLE)
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select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
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select EDAC_SUPPORT
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select EDAC_ATOMIC_SCRUB
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select GENERIC_ALLOCATOR
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select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
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select GENERIC_CLOCKEVENTS_BROADCAST if SMP
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select GENERIC_IDLE_POLL_SETUP
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select GENERIC_IRQ_PROBE
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select GENERIC_IRQ_SHOW
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select GENERIC_IRQ_SHOW_LEVEL
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select GENERIC_PCI_IOMAP
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select GENERIC_SCHED_CLOCK
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select GENERIC_SMP_IDLE_THREAD
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select GENERIC_STRNCPY_FROM_USER
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select GENERIC_STRNLEN_USER
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select HANDLE_DOMAIN_IRQ
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select HARDIRQS_SW_RESEND
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select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
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select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
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select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32
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select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32
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select HAVE_ARCH_MMAP_RND_BITS if MMU
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select HAVE_ARCH_HARDENED_USERCOPY
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select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
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select HAVE_ARCH_TRACEHOOK
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select HAVE_BPF_JIT
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select HAVE_CC_STACKPROTECTOR
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select HAVE_CONTEXT_TRACKING
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select HAVE_C_RECORDMCOUNT
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select HAVE_DEBUG_KMEMLEAK
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select HAVE_DMA_API_DEBUG
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select HAVE_DMA_ATTRS
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select HAVE_DMA_CONTIGUOUS if MMU
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select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32
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select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
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select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
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select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
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select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
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select HAVE_GENERIC_DMA_COHERENT
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select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
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select HAVE_IDE if PCI || ISA || PCMCIA
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select HAVE_IRQ_TIME_ACCOUNTING
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select HAVE_KERNEL_GZIP
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select HAVE_KERNEL_LZ4
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select HAVE_KERNEL_LZMA
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select HAVE_KERNEL_LZO
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select HAVE_KERNEL_XZ
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select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M
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select HAVE_KRETPROBES if (HAVE_KPROBES)
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select HAVE_MEMBLOCK
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select HAVE_MOD_ARCH_SPECIFIC
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select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
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select HAVE_OPTPROBES if !THUMB2_KERNEL
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select HAVE_PERF_EVENTS
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select HAVE_PERF_REGS
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select HAVE_PERF_USER_STACK_DUMP
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select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE)
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select HAVE_REGS_AND_STACK_ACCESS_API
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select HAVE_SYSCALL_TRACEPOINTS
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select HAVE_UID16
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select HAVE_VIRT_CPU_ACCOUNTING_GEN
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select IRQ_FORCED_THREADING
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select MODULES_USE_ELF_REL
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select NO_BOOTMEM
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select OF_EARLY_FLATTREE if OF
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select OF_RESERVED_MEM if OF
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select OLD_SIGACTION
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select OLD_SIGSUSPEND3
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select PERF_USE_VMALLOC
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select RTC_LIB
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select SYS_SUPPORTS_APM_EMULATION
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# Above selects are sorted alphabetically; please add new ones
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# according to that. Thanks.
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help
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The ARM series is a line of low-power-consumption RISC chip designs
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licensed by ARM Ltd and targeted at embedded applications and
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handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
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manufactured, but legacy ARM-based PC hardware remains popular in
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Europe. There is an ARM Linux project with a web page at
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<http://www.arm.linux.org.uk/>.
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config ARM_HAS_SG_CHAIN
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select ARCH_HAS_SG_CHAIN
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bool
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config NEED_SG_DMA_LENGTH
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bool
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config ARM_DMA_USE_IOMMU
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bool
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select ARM_HAS_SG_CHAIN
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select NEED_SG_DMA_LENGTH
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if ARM_DMA_USE_IOMMU
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config ARM_DMA_IOMMU_ALIGNMENT
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int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
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range 4 9
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default 8
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help
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DMA mapping framework by default aligns all buffers to the smallest
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PAGE_SIZE order which is greater than or equal to the requested buffer
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size. This works well for buffers up to a few hundreds kilobytes, but
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for larger buffers it just a waste of address space. Drivers which has
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relatively small addressing window (like 64Mib) might run out of
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virtual space with just a few allocations.
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With this parameter you can specify the maximum PAGE_SIZE order for
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DMA IOMMU buffers. Larger buffers will be aligned only to this
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specified order. The order is expressed as a power of two multiplied
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by the PAGE_SIZE.
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endif
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config MIGHT_HAVE_PCI
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bool
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config SYS_SUPPORTS_APM_EMULATION
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bool
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config HAVE_TCM
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bool
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select GENERIC_ALLOCATOR
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config HAVE_PROC_CPU
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bool
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config NO_IOPORT_MAP
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bool
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config EISA
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bool
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---help---
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The Extended Industry Standard Architecture (EISA) bus was
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developed as an open alternative to the IBM MicroChannel bus.
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The EISA bus provided some of the features of the IBM MicroChannel
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bus while maintaining backward compatibility with cards made for
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the older ISA bus. The EISA bus saw limited use between 1988 and
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1995 when it was made obsolete by the PCI bus.
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Say Y here if you are building a kernel for an EISA-based machine.
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Otherwise, say N.
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config SBUS
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bool
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config STACKTRACE_SUPPORT
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bool
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default y
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config HAVE_LATENCYTOP_SUPPORT
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bool
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depends on !SMP
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default y
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config LOCKDEP_SUPPORT
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bool
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default y
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config TRACE_IRQFLAGS_SUPPORT
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bool
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default !CPU_V7M
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config RWSEM_XCHGADD_ALGORITHM
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bool
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default y
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config ARCH_HAS_ILOG2_U32
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bool
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config ARCH_HAS_ILOG2_U64
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bool
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config ARCH_HAS_BANDGAP
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bool
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config FIX_EARLYCON_MEM
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def_bool y if MMU
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config GENERIC_HWEIGHT
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bool
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default y
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config GENERIC_CALIBRATE_DELAY
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bool
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default y
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config ARCH_MAY_HAVE_PC_FDC
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bool
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config ZONE_DMA
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bool
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config NEED_DMA_MAP_STATE
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def_bool y
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config ARCH_SUPPORTS_UPROBES
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def_bool y
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|
|
config ARCH_HAS_DMA_SET_COHERENT_MASK
|
|
bool
|
|
|
|
config GENERIC_ISA_DMA
|
|
bool
|
|
|
|
config FIQ
|
|
bool
|
|
|
|
config NEED_RET_TO_USER
|
|
bool
|
|
|
|
config ARCH_MTD_XIP
|
|
bool
|
|
|
|
config VECTORS_BASE
|
|
hex
|
|
default 0xffff0000 if MMU || CPU_HIGH_VECTOR
|
|
default DRAM_BASE if REMAP_VECTORS_TO_RAM
|
|
default 0x00000000
|
|
help
|
|
The base address of exception vectors. This must be two pages
|
|
in size.
|
|
|
|
config ARM_PATCH_PHYS_VIRT
|
|
bool "Patch physical to virtual translations at runtime" if EMBEDDED
|
|
default y
|
|
depends on !XIP_KERNEL && MMU
|
|
depends on !ARCH_REALVIEW || !SPARSEMEM
|
|
help
|
|
Patch phys-to-virt and virt-to-phys translation functions at
|
|
boot and module load time according to the position of the
|
|
kernel in system memory.
|
|
|
|
This can only be used with non-XIP MMU kernels where the base
|
|
of physical memory is at a 16MB boundary.
|
|
|
|
Only disable this option if you know that you do not require
|
|
this feature (eg, building a kernel for a single machine) and
|
|
you need to shrink the kernel to the minimal size.
|
|
|
|
config NEED_MACH_IO_H
|
|
bool
|
|
help
|
|
Select this when mach/io.h is required to provide special
|
|
definitions for this platform. The need for mach/io.h should
|
|
be avoided when possible.
|
|
|
|
config NEED_MACH_MEMORY_H
|
|
bool
|
|
help
|
|
Select this when mach/memory.h is required to provide special
|
|
definitions for this platform. The need for mach/memory.h should
|
|
be avoided when possible.
|
|
|
|
config PHYS_OFFSET
|
|
hex "Physical address of main memory" if MMU
|
|
depends on !ARM_PATCH_PHYS_VIRT
|
|
default DRAM_BASE if !MMU
|
|
default 0x00000000 if ARCH_EBSA110 || \
|
|
ARCH_FOOTBRIDGE || \
|
|
ARCH_INTEGRATOR || \
|
|
ARCH_IOP13XX || \
|
|
ARCH_KS8695 || \
|
|
(ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
|
|
default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
|
|
default 0x20000000 if ARCH_S5PV210
|
|
default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
|
|
default 0xc0000000 if ARCH_SA1100
|
|
help
|
|
Please provide the physical address corresponding to the
|
|
location of main memory in your system.
|
|
|
|
config GENERIC_BUG
|
|
def_bool y
|
|
depends on BUG
|
|
|
|
config PGTABLE_LEVELS
|
|
int
|
|
default 3 if ARM_LPAE
|
|
default 2
|
|
|
|
source "init/Kconfig"
|
|
|
|
source "kernel/Kconfig.freezer"
|
|
|
|
menu "System Type"
|
|
|
|
config MMU
|
|
bool "MMU-based Paged Memory Management Support"
|
|
default y
|
|
help
|
|
Select if you want MMU-based virtualised addressing space
|
|
support by paged memory management. If unsure, say 'Y'.
|
|
|
|
config ARCH_MMAP_RND_BITS_MIN
|
|
default 8
|
|
|
|
config ARCH_MMAP_RND_BITS_MAX
|
|
default 14 if PAGE_OFFSET=0x40000000
|
|
default 15 if PAGE_OFFSET=0x80000000
|
|
default 16
|
|
|
|
#
|
|
# The "ARM system type" choice list is ordered alphabetically by option
|
|
# text. Please add new entries in the option alphabetic order.
|
|
#
|
|
choice
|
|
prompt "ARM system type"
|
|
default ARCH_VERSATILE if !MMU
|
|
default ARCH_MULTIPLATFORM if MMU
|
|
|
|
config ARCH_MULTIPLATFORM
|
|
bool "Allow multiple platforms to be selected"
|
|
depends on MMU
|
|
select ARCH_WANT_OPTIONAL_GPIOLIB
|
|
select ARM_HAS_SG_CHAIN
|
|
select ARM_PATCH_PHYS_VIRT
|
|
select AUTO_ZRELADDR
|
|
select CLKSRC_OF
|
|
select COMMON_CLK
|
|
select GENERIC_CLOCKEVENTS
|
|
select MIGHT_HAVE_PCI
|
|
select MULTI_IRQ_HANDLER
|
|
select SPARSE_IRQ
|
|
select USE_OF
|
|
|
|
config ARM_SINGLE_ARMV7M
|
|
bool "ARMv7-M based platforms (Cortex-M0/M3/M4)"
|
|
depends on !MMU
|
|
select ARCH_WANT_OPTIONAL_GPIOLIB
|
|
select ARM_NVIC
|
|
select AUTO_ZRELADDR
|
|
select CLKSRC_OF
|
|
select COMMON_CLK
|
|
select CPU_V7M
|
|
select GENERIC_CLOCKEVENTS
|
|
select NO_IOPORT_MAP
|
|
select SPARSE_IRQ
|
|
select USE_OF
|
|
|
|
config ARCH_REALVIEW
|
|
bool "ARM Ltd. RealView family"
|
|
select ARCH_WANT_OPTIONAL_GPIOLIB
|
|
select ARM_AMBA
|
|
select ARM_TIMER_SP804
|
|
select COMMON_CLK
|
|
select COMMON_CLK_VERSATILE
|
|
select GENERIC_CLOCKEVENTS
|
|
select GPIO_PL061 if GPIOLIB
|
|
select ICST
|
|
select NEED_MACH_MEMORY_H
|
|
select PLAT_VERSATILE
|
|
select PLAT_VERSATILE_SCHED_CLOCK
|
|
help
|
|
This enables support for ARM Ltd RealView boards.
|
|
|
|
config ARCH_VERSATILE
|
|
bool "ARM Ltd. Versatile family"
|
|
select ARCH_WANT_OPTIONAL_GPIOLIB
|
|
select ARM_AMBA
|
|
select ARM_TIMER_SP804
|
|
select ARM_VIC
|
|
select CLKDEV_LOOKUP
|
|
select GENERIC_CLOCKEVENTS
|
|
select HAVE_MACH_CLKDEV
|
|
select ICST
|
|
select PLAT_VERSATILE
|
|
select PLAT_VERSATILE_CLOCK
|
|
select PLAT_VERSATILE_SCHED_CLOCK
|
|
select VERSATILE_FPGA_IRQ
|
|
help
|
|
This enables support for ARM Ltd Versatile board.
|
|
|
|
config ARCH_CLPS711X
|
|
bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select AUTO_ZRELADDR
|
|
select CLKSRC_MMIO
|
|
select COMMON_CLK
|
|
select CPU_ARM720T
|
|
select GENERIC_CLOCKEVENTS
|
|
select MFD_SYSCON
|
|
select SOC_BUS
|
|
help
|
|
Support for Cirrus Logic 711x/721x/731x based boards.
|
|
|
|
config ARCH_GEMINI
|
|
bool "Cortina Systems Gemini"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CLKSRC_MMIO
|
|
select CPU_FA526
|
|
select GENERIC_CLOCKEVENTS
|
|
help
|
|
Support for the Cortina Systems Gemini family SoCs
|
|
|
|
config ARCH_EBSA110
|
|
bool "EBSA-110"
|
|
select ARCH_USES_GETTIMEOFFSET
|
|
select CPU_SA110
|
|
select ISA
|
|
select NEED_MACH_IO_H
|
|
select NEED_MACH_MEMORY_H
|
|
select NO_IOPORT_MAP
|
|
help
|
|
This is an evaluation board for the StrongARM processor available
|
|
from Digital. It has limited hardware on-board, including an
|
|
Ethernet interface, two PCMCIA sockets, two serial ports and a
|
|
parallel port.
|
|
|
|
config ARCH_EP93XX
|
|
bool "EP93xx-based"
|
|
select ARCH_HAS_HOLES_MEMORYMODEL
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select ARM_AMBA
|
|
select ARM_PATCH_PHYS_VIRT
|
|
select ARM_VIC
|
|
select AUTO_ZRELADDR
|
|
select CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
select CPU_ARM920T
|
|
select GENERIC_CLOCKEVENTS
|
|
help
|
|
This enables support for the Cirrus EP93xx series of CPUs.
|
|
|
|
config ARCH_FOOTBRIDGE
|
|
bool "FootBridge"
|
|
select CPU_SA110
|
|
select FOOTBRIDGE
|
|
select GENERIC_CLOCKEVENTS
|
|
select HAVE_IDE
|
|
select NEED_MACH_IO_H if !MMU
|
|
select NEED_MACH_MEMORY_H
|
|
help
|
|
Support for systems based on the DC21285 companion chip
|
|
("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
|
|
|
|
config ARCH_NETX
|
|
bool "Hilscher NetX based"
|
|
select ARM_VIC
|
|
select CLKSRC_MMIO
|
|
select CPU_ARM926T
|
|
select GENERIC_CLOCKEVENTS
|
|
help
|
|
This enables support for systems based on the Hilscher NetX Soc
|
|
|
|
config ARCH_IOP13XX
|
|
bool "IOP13xx-based"
|
|
depends on MMU
|
|
select CPU_XSC3
|
|
select NEED_MACH_MEMORY_H
|
|
select NEED_RET_TO_USER
|
|
select PCI
|
|
select PLAT_IOP
|
|
select VMSPLIT_1G
|
|
select SPARSE_IRQ
|
|
help
|
|
Support for Intel's IOP13XX (XScale) family of processors.
|
|
|
|
config ARCH_IOP32X
|
|
bool "IOP32x-based"
|
|
depends on MMU
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CPU_XSCALE
|
|
select GPIO_IOP
|
|
select NEED_RET_TO_USER
|
|
select PCI
|
|
select PLAT_IOP
|
|
help
|
|
Support for Intel's 80219 and IOP32X (XScale) family of
|
|
processors.
|
|
|
|
config ARCH_IOP33X
|
|
bool "IOP33x-based"
|
|
depends on MMU
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CPU_XSCALE
|
|
select GPIO_IOP
|
|
select NEED_RET_TO_USER
|
|
select PCI
|
|
select PLAT_IOP
|
|
help
|
|
Support for Intel's IOP33X (XScale) family of processors.
|
|
|
|
config ARCH_IXP4XX
|
|
bool "IXP4xx-based"
|
|
depends on MMU
|
|
select ARCH_HAS_DMA_SET_COHERENT_MASK
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select ARCH_SUPPORTS_BIG_ENDIAN
|
|
select CLKSRC_MMIO
|
|
select CPU_XSCALE
|
|
select DMABOUNCE if PCI
|
|
select GENERIC_CLOCKEVENTS
|
|
select MIGHT_HAVE_PCI
|
|
select NEED_MACH_IO_H
|
|
select USB_EHCI_BIG_ENDIAN_DESC
|
|
select USB_EHCI_BIG_ENDIAN_MMIO
|
|
help
|
|
Support for Intel's IXP4XX (XScale) family of processors.
|
|
|
|
config ARCH_DOVE
|
|
bool "Marvell Dove"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CPU_PJ4
|
|
select GENERIC_CLOCKEVENTS
|
|
select MIGHT_HAVE_PCI
|
|
select MVEBU_MBUS
|
|
select PINCTRL
|
|
select PINCTRL_DOVE
|
|
select PLAT_ORION_LEGACY
|
|
help
|
|
Support for the Marvell Dove SoC 88AP510
|
|
|
|
config ARCH_MV78XX0
|
|
bool "Marvell MV78xx0"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CPU_FEROCEON
|
|
select GENERIC_CLOCKEVENTS
|
|
select MVEBU_MBUS
|
|
select PCI
|
|
select PLAT_ORION_LEGACY
|
|
help
|
|
Support for the following Marvell MV78xx0 series SoCs:
|
|
MV781x0, MV782x0.
|
|
|
|
config ARCH_ORION5X
|
|
bool "Marvell Orion"
|
|
depends on MMU
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CPU_FEROCEON
|
|
select GENERIC_CLOCKEVENTS
|
|
select MVEBU_MBUS
|
|
select PCI
|
|
select PLAT_ORION_LEGACY
|
|
select MULTI_IRQ_HANDLER
|
|
help
|
|
Support for the following Marvell Orion 5x series SoCs:
|
|
Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
|
|
Orion-2 (5281), Orion-1-90 (6183).
|
|
|
|
config ARCH_MMP
|
|
bool "Marvell PXA168/910/MMP2"
|
|
depends on MMU
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CLKDEV_LOOKUP
|
|
select GENERIC_ALLOCATOR
|
|
select GENERIC_CLOCKEVENTS
|
|
select GPIO_PXA
|
|
select IRQ_DOMAIN
|
|
select MULTI_IRQ_HANDLER
|
|
select PINCTRL
|
|
select PLAT_PXA
|
|
select SPARSE_IRQ
|
|
help
|
|
Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
|
|
|
|
config ARCH_KS8695
|
|
bool "Micrel/Kendin KS8695"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CLKSRC_MMIO
|
|
select CPU_ARM922T
|
|
select GENERIC_CLOCKEVENTS
|
|
select NEED_MACH_MEMORY_H
|
|
help
|
|
Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
|
|
System-on-Chip devices.
|
|
|
|
config ARCH_W90X900
|
|
bool "Nuvoton W90X900 CPU"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
select CPU_ARM926T
|
|
select GENERIC_CLOCKEVENTS
|
|
help
|
|
Support for Nuvoton (Winbond logic dept.) ARM9 processor,
|
|
At present, the w90x900 has been renamed nuc900, regarding
|
|
the ARM series product line, you can login the following
|
|
link address to know more.
|
|
|
|
<http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
|
|
ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
|
|
|
|
config ARCH_LPC32XX
|
|
bool "NXP LPC32XX"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select ARM_AMBA
|
|
select CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
select CPU_ARM926T
|
|
select GENERIC_CLOCKEVENTS
|
|
select HAVE_IDE
|
|
select USE_OF
|
|
help
|
|
Support for the NXP LPC32XX family of processors
|
|
|
|
config ARCH_PXA
|
|
bool "PXA2xx/PXA3xx-based"
|
|
depends on MMU
|
|
select ARCH_MTD_XIP
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select ARM_CPU_SUSPEND if PM
|
|
select AUTO_ZRELADDR
|
|
select COMMON_CLK
|
|
select CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
select CLKSRC_OF
|
|
select GENERIC_CLOCKEVENTS
|
|
select GPIO_PXA
|
|
select HAVE_IDE
|
|
select IRQ_DOMAIN
|
|
select MULTI_IRQ_HANDLER
|
|
select PLAT_PXA
|
|
select SPARSE_IRQ
|
|
help
|
|
Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
|
|
|
|
config ARCH_QCOM
|
|
bool "Qualcomm MSM (non-multiplatform)"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CPU_V7
|
|
select AUTO_ZRELADDR
|
|
select HAVE_SMP
|
|
select CLKDEV_LOOKUP
|
|
select GENERIC_CLOCKEVENTS
|
|
select GENERIC_ALLOCATOR
|
|
select ARM_GIC
|
|
select ARM_PATCH_PHYS_VIRT
|
|
select ARM_HAS_SG_CHAIN
|
|
select ARCH_HAS_OPP
|
|
select SOC_BUS
|
|
select MULTI_IRQ_HANDLER
|
|
select PM_OPP
|
|
select SPARSE_IRQ
|
|
select USE_OF
|
|
select PINCTRL
|
|
help
|
|
Support for Qualcomm MSM/QSD based systems. This runs on the
|
|
apps processor of the MSM/QSD and depends on a shared memory
|
|
interface to the modem processor which runs the baseband
|
|
stack and controls some vital subsystems
|
|
(clock and power control, etc).
|
|
|
|
config ARCH_RPC
|
|
bool "RiscPC"
|
|
depends on MMU
|
|
select ARCH_ACORN
|
|
select ARCH_MAY_HAVE_PC_FDC
|
|
select ARCH_SPARSEMEM_ENABLE
|
|
select ARCH_USES_GETTIMEOFFSET
|
|
select CPU_SA110
|
|
select FIQ
|
|
select HAVE_IDE
|
|
select HAVE_PATA_PLATFORM
|
|
select ISA_DMA_API
|
|
select NEED_MACH_IO_H
|
|
select NEED_MACH_MEMORY_H
|
|
select NO_IOPORT_MAP
|
|
select VIRT_TO_BUS
|
|
help
|
|
On the Acorn Risc-PC, Linux can support the internal IDE disk and
|
|
CD-ROM interface, serial and parallel port, and the floppy drive.
|
|
|
|
config ARCH_SA1100
|
|
bool "SA1100-based"
|
|
select ARCH_MTD_XIP
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select ARCH_SPARSEMEM_ENABLE
|
|
select CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
select CPU_FREQ
|
|
select CPU_SA1100
|
|
select GENERIC_CLOCKEVENTS
|
|
select HAVE_IDE
|
|
select IRQ_DOMAIN
|
|
select ISA
|
|
select MULTI_IRQ_HANDLER
|
|
select NEED_MACH_MEMORY_H
|
|
select SPARSE_IRQ
|
|
help
|
|
Support for StrongARM 11x0 based boards.
|
|
|
|
config ARCH_S3C24XX
|
|
bool "Samsung S3C24XX SoCs"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select ATAGS
|
|
select CLKDEV_LOOKUP
|
|
select CLKSRC_SAMSUNG_PWM
|
|
select GENERIC_CLOCKEVENTS
|
|
select GPIO_SAMSUNG
|
|
select HAVE_S3C2410_I2C if I2C
|
|
select HAVE_S3C2410_WATCHDOG if WATCHDOG
|
|
select HAVE_S3C_RTC if RTC_CLASS
|
|
select MULTI_IRQ_HANDLER
|
|
select NEED_MACH_IO_H
|
|
select SAMSUNG_ATAGS
|
|
help
|
|
Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
|
|
and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
|
|
(<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
|
|
Samsung SMDK2410 development board (and derivatives).
|
|
|
|
config ARCH_S3C64XX
|
|
bool "Samsung S3C64XX"
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select ARM_AMBA
|
|
select ARM_VIC
|
|
select ATAGS
|
|
select CLKDEV_LOOKUP
|
|
select CLKSRC_SAMSUNG_PWM
|
|
select COMMON_CLK_SAMSUNG
|
|
select CPU_V6K
|
|
select GENERIC_CLOCKEVENTS
|
|
select GPIO_SAMSUNG
|
|
select HAVE_S3C2410_I2C if I2C
|
|
select HAVE_S3C2410_WATCHDOG if WATCHDOG
|
|
select HAVE_TCM
|
|
select NO_IOPORT_MAP
|
|
select PLAT_SAMSUNG
|
|
select PM_GENERIC_DOMAINS if PM
|
|
select S3C_DEV_NAND
|
|
select S3C_GPIO_TRACK
|
|
select SAMSUNG_ATAGS
|
|
select SAMSUNG_WAKEMASK
|
|
select SAMSUNG_WDT_RESET
|
|
help
|
|
Samsung S3C64XX series based systems
|
|
|
|
config ARCH_DAVINCI
|
|
bool "TI DaVinci"
|
|
select ARCH_HAS_HOLES_MEMORYMODEL
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CLKDEV_LOOKUP
|
|
select GENERIC_ALLOCATOR
|
|
select GENERIC_CLOCKEVENTS
|
|
select GENERIC_IRQ_CHIP
|
|
select HAVE_IDE
|
|
select USE_OF
|
|
select ZONE_DMA
|
|
help
|
|
Support for TI's DaVinci platform.
|
|
|
|
config ARCH_OMAP1
|
|
bool "TI OMAP1"
|
|
depends on MMU
|
|
select ARCH_HAS_HOLES_MEMORYMODEL
|
|
select ARCH_OMAP
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
select CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
select GENERIC_CLOCKEVENTS
|
|
select GENERIC_IRQ_CHIP
|
|
select HAVE_IDE
|
|
select IRQ_DOMAIN
|
|
select MULTI_IRQ_HANDLER
|
|
select NEED_MACH_IO_H if PCCARD
|
|
select NEED_MACH_MEMORY_H
|
|
select SPARSE_IRQ
|
|
help
|
|
Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
|
|
|
|
endchoice
|
|
|
|
menu "Multiple platform selection"
|
|
depends on ARCH_MULTIPLATFORM
|
|
|
|
comment "CPU Core family selection"
|
|
|
|
config ARCH_MULTI_V4
|
|
bool "ARMv4 based platforms (FA526)"
|
|
depends on !ARCH_MULTI_V6_V7
|
|
select ARCH_MULTI_V4_V5
|
|
select CPU_FA526
|
|
|
|
config ARCH_MULTI_V4T
|
|
bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
|
|
depends on !ARCH_MULTI_V6_V7
|
|
select ARCH_MULTI_V4_V5
|
|
select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
|
|
CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
|
|
CPU_ARM925T || CPU_ARM940T)
|
|
|
|
config ARCH_MULTI_V5
|
|
bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
|
|
depends on !ARCH_MULTI_V6_V7
|
|
select ARCH_MULTI_V4_V5
|
|
select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
|
|
CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
|
|
CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
|
|
|
|
config ARCH_MULTI_V4_V5
|
|
bool
|
|
|
|
config ARCH_MULTI_V6
|
|
bool "ARMv6 based platforms (ARM11)"
|
|
select ARCH_MULTI_V6_V7
|
|
select CPU_V6K
|
|
|
|
config ARCH_MULTI_V7
|
|
bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
|
|
default y
|
|
select ARCH_MULTI_V6_V7
|
|
select CPU_V7
|
|
select HAVE_SMP
|
|
|
|
config ARCH_MULTI_V6_V7
|
|
bool
|
|
select MIGHT_HAVE_CACHE_L2X0
|
|
|
|
config ARCH_MULTI_CPU_AUTO
|
|
def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
|
|
select ARCH_MULTI_V5
|
|
|
|
endmenu
|
|
|
|
config ARCH_VIRT
|
|
bool "Dummy Virtual Machine" if ARCH_MULTI_V7
|
|
select ARM_AMBA
|
|
select ARM_GIC
|
|
select ARM_GIC_V3
|
|
select ARM_PSCI
|
|
select HAVE_ARM_ARCH_TIMER
|
|
|
|
#
|
|
# This is sorted alphabetically by mach-* pathname. However, plat-*
|
|
# Kconfigs may be included either alphabetically (according to the
|
|
# plat- suffix) or along side the corresponding mach-* source.
|
|
#
|
|
source "arch/arm/mach-mvebu/Kconfig"
|
|
|
|
source "arch/arm/mach-alpine/Kconfig"
|
|
|
|
source "arch/arm/mach-asm9260/Kconfig"
|
|
|
|
source "arch/arm/mach-at91/Kconfig"
|
|
|
|
source "arch/arm/mach-axxia/Kconfig"
|
|
|
|
source "arch/arm/mach-bcm/Kconfig"
|
|
|
|
source "arch/arm/mach-berlin/Kconfig"
|
|
|
|
source "arch/arm/mach-clps711x/Kconfig"
|
|
|
|
source "arch/arm/mach-cns3xxx/Kconfig"
|
|
|
|
source "arch/arm/mach-davinci/Kconfig"
|
|
|
|
source "arch/arm/mach-digicolor/Kconfig"
|
|
|
|
source "arch/arm/mach-dove/Kconfig"
|
|
|
|
source "arch/arm/mach-ep93xx/Kconfig"
|
|
|
|
source "arch/arm/mach-footbridge/Kconfig"
|
|
|
|
source "arch/arm/mach-gemini/Kconfig"
|
|
|
|
source "arch/arm/mach-highbank/Kconfig"
|
|
|
|
source "arch/arm/mach-hisi/Kconfig"
|
|
|
|
source "arch/arm/mach-integrator/Kconfig"
|
|
|
|
source "arch/arm/mach-iop32x/Kconfig"
|
|
|
|
source "arch/arm/mach-iop33x/Kconfig"
|
|
|
|
source "arch/arm/mach-iop13xx/Kconfig"
|
|
|
|
source "arch/arm/mach-ixp4xx/Kconfig"
|
|
|
|
source "arch/arm/mach-keystone/Kconfig"
|
|
|
|
source "arch/arm/mach-ks8695/Kconfig"
|
|
|
|
source "arch/arm/mach-meson/Kconfig"
|
|
|
|
source "arch/arm/mach-moxart/Kconfig"
|
|
|
|
source "arch/arm/mach-mv78xx0/Kconfig"
|
|
|
|
source "arch/arm/mach-imx/Kconfig"
|
|
|
|
source "arch/arm/mach-mediatek/Kconfig"
|
|
|
|
source "arch/arm/mach-mxs/Kconfig"
|
|
|
|
source "arch/arm/mach-netx/Kconfig"
|
|
|
|
source "arch/arm/mach-nomadik/Kconfig"
|
|
|
|
source "arch/arm/mach-nspire/Kconfig"
|
|
|
|
source "arch/arm/plat-omap/Kconfig"
|
|
|
|
source "arch/arm/mach-omap1/Kconfig"
|
|
|
|
source "arch/arm/mach-omap2/Kconfig"
|
|
|
|
source "arch/arm/mach-orion5x/Kconfig"
|
|
|
|
source "arch/arm/mach-picoxcell/Kconfig"
|
|
|
|
source "arch/arm/mach-pxa/Kconfig"
|
|
source "arch/arm/plat-pxa/Kconfig"
|
|
|
|
source "arch/arm/mach-mmp/Kconfig"
|
|
|
|
source "arch/arm/mach-qcom/Kconfig"
|
|
|
|
source "arch/arm/mach-realview/Kconfig"
|
|
|
|
source "arch/arm/mach-rockchip/Kconfig"
|
|
|
|
source "arch/arm/mach-sa1100/Kconfig"
|
|
|
|
source "arch/arm/mach-socfpga/Kconfig"
|
|
|
|
source "arch/arm/mach-spear/Kconfig"
|
|
|
|
source "arch/arm/mach-sti/Kconfig"
|
|
|
|
source "arch/arm/mach-s3c24xx/Kconfig"
|
|
|
|
source "arch/arm/mach-s3c64xx/Kconfig"
|
|
|
|
source "arch/arm/mach-s5pv210/Kconfig"
|
|
|
|
source "arch/arm/mach-exynos/Kconfig"
|
|
source "arch/arm/plat-samsung/Kconfig"
|
|
|
|
source "arch/arm/mach-shmobile/Kconfig"
|
|
|
|
source "arch/arm/mach-sunxi/Kconfig"
|
|
|
|
source "arch/arm/mach-prima2/Kconfig"
|
|
|
|
source "arch/arm/mach-tegra/Kconfig"
|
|
|
|
source "arch/arm/mach-u300/Kconfig"
|
|
|
|
source "arch/arm/mach-uniphier/Kconfig"
|
|
|
|
source "arch/arm/mach-ux500/Kconfig"
|
|
|
|
source "arch/arm/mach-versatile/Kconfig"
|
|
|
|
source "arch/arm/mach-vexpress/Kconfig"
|
|
source "arch/arm/plat-versatile/Kconfig"
|
|
|
|
source "arch/arm/mach-vt8500/Kconfig"
|
|
|
|
source "arch/arm/mach-w90x900/Kconfig"
|
|
|
|
source "arch/arm/mach-zx/Kconfig"
|
|
|
|
source "arch/arm/mach-zynq/Kconfig"
|
|
|
|
# ARMv7-M architecture
|
|
config ARCH_EFM32
|
|
bool "Energy Micro efm32"
|
|
depends on ARM_SINGLE_ARMV7M
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
help
|
|
Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
|
|
processors.
|
|
|
|
config ARCH_LPC18XX
|
|
bool "NXP LPC18xx/LPC43xx"
|
|
depends on ARM_SINGLE_ARMV7M
|
|
select ARCH_HAS_RESET_CONTROLLER
|
|
select ARM_AMBA
|
|
select CLKSRC_LPC32XX
|
|
select PINCTRL
|
|
help
|
|
Support for NXP's LPC18xx Cortex-M3 and LPC43xx Cortex-M4
|
|
high performance microcontrollers.
|
|
|
|
config ARCH_STM32
|
|
bool "STMicrolectronics STM32"
|
|
depends on ARM_SINGLE_ARMV7M
|
|
select ARCH_HAS_RESET_CONTROLLER
|
|
select ARMV7M_SYSTICK
|
|
select CLKSRC_STM32
|
|
select RESET_CONTROLLER
|
|
help
|
|
Support for STMicroelectronics STM32 processors.
|
|
|
|
# Definitions to make life easier
|
|
config ARCH_ACORN
|
|
bool
|
|
|
|
config PLAT_IOP
|
|
bool
|
|
select GENERIC_CLOCKEVENTS
|
|
|
|
config PLAT_ORION
|
|
bool
|
|
select CLKSRC_MMIO
|
|
select COMMON_CLK
|
|
select GENERIC_IRQ_CHIP
|
|
select IRQ_DOMAIN
|
|
|
|
config PLAT_ORION_LEGACY
|
|
bool
|
|
select PLAT_ORION
|
|
|
|
config PLAT_PXA
|
|
bool
|
|
|
|
config PLAT_VERSATILE
|
|
bool
|
|
|
|
source "arch/arm/firmware/Kconfig"
|
|
|
|
source arch/arm/mm/Kconfig
|
|
|
|
config IWMMXT
|
|
bool "Enable iWMMXt support"
|
|
depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
|
|
default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
|
|
help
|
|
Enable support for iWMMXt context switching at run time if
|
|
running on a CPU that supports it.
|
|
|
|
config MULTI_IRQ_HANDLER
|
|
bool
|
|
help
|
|
Allow each machine to specify it's own IRQ handler at run time.
|
|
|
|
if !MMU
|
|
source "arch/arm/Kconfig-nommu"
|
|
endif
|
|
|
|
config PJ4B_ERRATA_4742
|
|
bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
|
|
depends on CPU_PJ4B && MACH_ARMADA_370
|
|
default y
|
|
help
|
|
When coming out of either a Wait for Interrupt (WFI) or a Wait for
|
|
Event (WFE) IDLE states, a specific timing sensitivity exists between
|
|
the retiring WFI/WFE instructions and the newly issued subsequent
|
|
instructions. This sensitivity can result in a CPU hang scenario.
|
|
Workaround:
|
|
The software must insert either a Data Synchronization Barrier (DSB)
|
|
or Data Memory Barrier (DMB) command immediately after the WFI/WFE
|
|
instruction
|
|
|
|
config ARM_ERRATA_326103
|
|
bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
|
|
depends on CPU_V6
|
|
help
|
|
Executing a SWP instruction to read-only memory does not set bit 11
|
|
of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
|
|
treat the access as a read, preventing a COW from occurring and
|
|
causing the faulting task to livelock.
|
|
|
|
config ARM_ERRATA_411920
|
|
bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
|
|
depends on CPU_V6 || CPU_V6K
|
|
help
|
|
Invalidation of the Instruction Cache operation can
|
|
fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
|
|
It does not affect the MPCore. This option enables the ARM Ltd.
|
|
recommended workaround.
|
|
|
|
config ARM_ERRATA_430973
|
|
bool "ARM errata: Stale prediction on replaced interworking branch"
|
|
depends on CPU_V7
|
|
help
|
|
This option enables the workaround for the 430973 Cortex-A8
|
|
r1p* erratum. If a code sequence containing an ARM/Thumb
|
|
interworking branch is replaced with another code sequence at the
|
|
same virtual address, whether due to self-modifying code or virtual
|
|
to physical address re-mapping, Cortex-A8 does not recover from the
|
|
stale interworking branch prediction. This results in Cortex-A8
|
|
executing the new code sequence in the incorrect ARM or Thumb state.
|
|
The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
|
|
and also flushes the branch target cache at every context switch.
|
|
Note that setting specific bits in the ACTLR register may not be
|
|
available in non-secure mode.
|
|
|
|
config ARM_ERRATA_458693
|
|
bool "ARM errata: Processor deadlock when a false hazard is created"
|
|
depends on CPU_V7
|
|
depends on !ARCH_MULTIPLATFORM
|
|
help
|
|
This option enables the workaround for the 458693 Cortex-A8 (r2p0)
|
|
erratum. For very specific sequences of memory operations, it is
|
|
possible for a hazard condition intended for a cache line to instead
|
|
be incorrectly associated with a different cache line. This false
|
|
hazard might then cause a processor deadlock. The workaround enables
|
|
the L1 caching of the NEON accesses and disables the PLD instruction
|
|
in the ACTLR register. Note that setting specific bits in the ACTLR
|
|
register may not be available in non-secure mode.
|
|
|
|
config ARM_ERRATA_460075
|
|
bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
|
|
depends on CPU_V7
|
|
depends on !ARCH_MULTIPLATFORM
|
|
help
|
|
This option enables the workaround for the 460075 Cortex-A8 (r2p0)
|
|
erratum. Any asynchronous access to the L2 cache may encounter a
|
|
situation in which recent store transactions to the L2 cache are lost
|
|
and overwritten with stale memory contents from external memory. The
|
|
workaround disables the write-allocate mode for the L2 cache via the
|
|
ACTLR register. Note that setting specific bits in the ACTLR register
|
|
may not be available in non-secure mode.
|
|
|
|
config ARM_ERRATA_742230
|
|
bool "ARM errata: DMB operation may be faulty"
|
|
depends on CPU_V7 && SMP
|
|
depends on !ARCH_MULTIPLATFORM
|
|
help
|
|
This option enables the workaround for the 742230 Cortex-A9
|
|
(r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
|
|
between two write operations may not ensure the correct visibility
|
|
ordering of the two writes. This workaround sets a specific bit in
|
|
the diagnostic register of the Cortex-A9 which causes the DMB
|
|
instruction to behave as a DSB, ensuring the correct behaviour of
|
|
the two writes.
|
|
|
|
config ARM_ERRATA_742231
|
|
bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
|
|
depends on CPU_V7 && SMP
|
|
depends on !ARCH_MULTIPLATFORM
|
|
help
|
|
This option enables the workaround for the 742231 Cortex-A9
|
|
(r2p0..r2p2) erratum. Under certain conditions, specific to the
|
|
Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
|
|
accessing some data located in the same cache line, may get corrupted
|
|
data due to bad handling of the address hazard when the line gets
|
|
replaced from one of the CPUs at the same time as another CPU is
|
|
accessing it. This workaround sets specific bits in the diagnostic
|
|
register of the Cortex-A9 which reduces the linefill issuing
|
|
capabilities of the processor.
|
|
|
|
config ARM_ERRATA_643719
|
|
bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
|
|
depends on CPU_V7 && SMP
|
|
default y
|
|
help
|
|
This option enables the workaround for the 643719 Cortex-A9 (prior to
|
|
r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
|
|
register returns zero when it should return one. The workaround
|
|
corrects this value, ensuring cache maintenance operations which use
|
|
it behave as intended and avoiding data corruption.
|
|
|
|
config ARM_ERRATA_720789
|
|
bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
|
|
depends on CPU_V7
|
|
help
|
|
This option enables the workaround for the 720789 Cortex-A9 (prior to
|
|
r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
|
|
broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
|
|
As a consequence of this erratum, some TLB entries which should be
|
|
invalidated are not, resulting in an incoherency in the system page
|
|
tables. The workaround changes the TLB flushing routines to invalidate
|
|
entries regardless of the ASID.
|
|
|
|
config ARM_ERRATA_743622
|
|
bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
|
|
depends on CPU_V7
|
|
depends on !ARCH_MULTIPLATFORM
|
|
help
|
|
This option enables the workaround for the 743622 Cortex-A9
|
|
(r2p*) erratum. Under very rare conditions, a faulty
|
|
optimisation in the Cortex-A9 Store Buffer may lead to data
|
|
corruption. This workaround sets a specific bit in the diagnostic
|
|
register of the Cortex-A9 which disables the Store Buffer
|
|
optimisation, preventing the defect from occurring. This has no
|
|
visible impact on the overall performance or power consumption of the
|
|
processor.
|
|
|
|
config ARM_ERRATA_751472
|
|
bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
|
|
depends on CPU_V7
|
|
depends on !ARCH_MULTIPLATFORM
|
|
help
|
|
This option enables the workaround for the 751472 Cortex-A9 (prior
|
|
to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
|
|
completion of a following broadcasted operation if the second
|
|
operation is received by a CPU before the ICIALLUIS has completed,
|
|
potentially leading to corrupted entries in the cache or TLB.
|
|
|
|
config ARM_ERRATA_754322
|
|
bool "ARM errata: possible faulty MMU translations following an ASID switch"
|
|
depends on CPU_V7
|
|
help
|
|
This option enables the workaround for the 754322 Cortex-A9 (r2p*,
|
|
r3p*) erratum. A speculative memory access may cause a page table walk
|
|
which starts prior to an ASID switch but completes afterwards. This
|
|
can populate the micro-TLB with a stale entry which may be hit with
|
|
the new ASID. This workaround places two dsb instructions in the mm
|
|
switching code so that no page table walks can cross the ASID switch.
|
|
|
|
config ARM_ERRATA_754327
|
|
bool "ARM errata: no automatic Store Buffer drain"
|
|
depends on CPU_V7 && SMP
|
|
help
|
|
This option enables the workaround for the 754327 Cortex-A9 (prior to
|
|
r2p0) erratum. The Store Buffer does not have any automatic draining
|
|
mechanism and therefore a livelock may occur if an external agent
|
|
continuously polls a memory location waiting to observe an update.
|
|
This workaround defines cpu_relax() as smp_mb(), preventing correctly
|
|
written polling loops from denying visibility of updates to memory.
|
|
|
|
config ARM_ERRATA_364296
|
|
bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
|
|
depends on CPU_V6
|
|
help
|
|
This options enables the workaround for the 364296 ARM1136
|
|
r0p2 erratum (possible cache data corruption with
|
|
hit-under-miss enabled). It sets the undocumented bit 31 in
|
|
the auxiliary control register and the FI bit in the control
|
|
register, thus disabling hit-under-miss without putting the
|
|
processor into full low interrupt latency mode. ARM11MPCore
|
|
is not affected.
|
|
|
|
config ARM_ERRATA_764369
|
|
bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
|
|
depends on CPU_V7 && SMP
|
|
help
|
|
This option enables the workaround for erratum 764369
|
|
affecting Cortex-A9 MPCore with two or more processors (all
|
|
current revisions). Under certain timing circumstances, a data
|
|
cache line maintenance operation by MVA targeting an Inner
|
|
Shareable memory region may fail to proceed up to either the
|
|
Point of Coherency or to the Point of Unification of the
|
|
system. This workaround adds a DSB instruction before the
|
|
relevant cache maintenance functions and sets a specific bit
|
|
in the diagnostic control register of the SCU.
|
|
|
|
config ARM_ERRATA_775420
|
|
bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
|
|
depends on CPU_V7
|
|
help
|
|
This option enables the workaround for the 775420 Cortex-A9 (r2p2,
|
|
r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
|
|
operation aborts with MMU exception, it might cause the processor
|
|
to deadlock. This workaround puts DSB before executing ISB if
|
|
an abort may occur on cache maintenance.
|
|
|
|
config ARM_ERRATA_798181
|
|
bool "ARM errata: TLBI/DSB failure on Cortex-A15"
|
|
depends on CPU_V7 && SMP
|
|
help
|
|
On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
|
|
adequately shooting down all use of the old entries. This
|
|
option enables the Linux kernel workaround for this erratum
|
|
which sends an IPI to the CPUs that are running the same ASID
|
|
as the one being invalidated.
|
|
|
|
config ARM_ERRATA_773022
|
|
bool "ARM errata: incorrect instructions may be executed from loop buffer"
|
|
depends on CPU_V7
|
|
help
|
|
This option enables the workaround for the 773022 Cortex-A15
|
|
(up to r0p4) erratum. In certain rare sequences of code, the
|
|
loop buffer may deliver incorrect instructions. This
|
|
workaround disables the loop buffer to avoid the erratum.
|
|
|
|
endmenu
|
|
|
|
source "arch/arm/common/Kconfig"
|
|
|
|
menu "Bus support"
|
|
|
|
config ISA
|
|
bool
|
|
help
|
|
Find out whether you have ISA slots on your motherboard. ISA is the
|
|
name of a bus system, i.e. the way the CPU talks to the other stuff
|
|
inside your box. Other bus systems are PCI, EISA, MicroChannel
|
|
(MCA) or VESA. ISA is an older system, now being displaced by PCI;
|
|
newer boards don't support it. If you have ISA, say Y, otherwise N.
|
|
|
|
# Select ISA DMA controller support
|
|
config ISA_DMA
|
|
bool
|
|
select ISA_DMA_API
|
|
|
|
# Select ISA DMA interface
|
|
config ISA_DMA_API
|
|
bool
|
|
|
|
config PCI
|
|
bool "PCI support" if MIGHT_HAVE_PCI
|
|
help
|
|
Find out whether you have a PCI motherboard. PCI is the name of a
|
|
bus system, i.e. the way the CPU talks to the other stuff inside
|
|
your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
|
|
VESA. If you have PCI, say Y, otherwise N.
|
|
|
|
config PCI_DOMAINS
|
|
bool
|
|
depends on PCI
|
|
|
|
config PCI_DOMAINS_GENERIC
|
|
def_bool PCI_DOMAINS
|
|
|
|
config PCI_NANOENGINE
|
|
bool "BSE nanoEngine PCI support"
|
|
depends on SA1100_NANOENGINE
|
|
help
|
|
Enable PCI on the BSE nanoEngine board.
|
|
|
|
config PCI_SYSCALL
|
|
def_bool PCI
|
|
|
|
config PCI_HOST_ITE8152
|
|
bool
|
|
depends on PCI && MACH_ARMCORE
|
|
default y
|
|
select DMABOUNCE
|
|
|
|
source "drivers/pci/Kconfig"
|
|
source "drivers/pci/pcie/Kconfig"
|
|
|
|
source "drivers/pcmcia/Kconfig"
|
|
|
|
endmenu
|
|
|
|
menu "Kernel Features"
|
|
|
|
config HAVE_SMP
|
|
bool
|
|
help
|
|
This option should be selected by machines which have an SMP-
|
|
capable CPU.
|
|
|
|
The only effect of this option is to make the SMP-related
|
|
options available to the user for configuration.
|
|
|
|
config SMP
|
|
bool "Symmetric Multi-Processing"
|
|
depends on CPU_V6K || CPU_V7
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAVE_SMP
|
|
depends on MMU || ARM_MPU
|
|
select IRQ_WORK
|
|
help
|
|
This enables support for systems with more than one CPU. If you have
|
|
a system with only one CPU, say N. If you have a system with more
|
|
than one CPU, say Y.
|
|
|
|
If you say N here, the kernel will run on uni- and multiprocessor
|
|
machines, but will use only one CPU of a multiprocessor machine. If
|
|
you say Y here, the kernel will run on many, but not all,
|
|
uniprocessor machines. On a uniprocessor machine, the kernel
|
|
will run faster if you say N here.
|
|
|
|
See also <file:Documentation/x86/i386/IO-APIC.txt>,
|
|
<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
|
|
<http://tldp.org/HOWTO/SMP-HOWTO.html>.
|
|
|
|
If you don't know what to do here, say N.
|
|
|
|
config SMP_ON_UP
|
|
bool "Allow booting SMP kernel on uniprocessor systems"
|
|
depends on SMP && !XIP_KERNEL && MMU
|
|
default y
|
|
help
|
|
SMP kernels contain instructions which fail on non-SMP processors.
|
|
Enabling this option allows the kernel to modify itself to make
|
|
these instructions safe. Disabling it allows about 1K of space
|
|
savings.
|
|
|
|
If you don't know what to do here, say Y.
|
|
|
|
config ARM_CPU_TOPOLOGY
|
|
bool "Support cpu topology definition"
|
|
depends on SMP && CPU_V7
|
|
default y
|
|
help
|
|
Support ARM cpu topology definition. The MPIDR register defines
|
|
affinity between processors which is then used to describe the cpu
|
|
topology of an ARM System.
|
|
|
|
config SCHED_MC
|
|
bool "Multi-core scheduler support"
|
|
depends on ARM_CPU_TOPOLOGY
|
|
help
|
|
Multi-core scheduler support improves the CPU scheduler's decision
|
|
making when dealing with multi-core CPU chips at a cost of slightly
|
|
increased overhead in some places. If unsure say N here.
|
|
|
|
config SCHED_SMT
|
|
bool "SMT scheduler support"
|
|
depends on ARM_CPU_TOPOLOGY
|
|
help
|
|
Improves the CPU scheduler's decision making when dealing with
|
|
MultiThreading at a cost of slightly increased overhead in some
|
|
places. If unsure say N here.
|
|
|
|
config HAVE_ARM_SCU
|
|
bool
|
|
help
|
|
This option enables support for the ARM system coherency unit
|
|
|
|
config HAVE_ARM_ARCH_TIMER
|
|
bool "Architected timer support"
|
|
depends on CPU_V7
|
|
select ARM_ARCH_TIMER
|
|
select GENERIC_CLOCKEVENTS
|
|
help
|
|
This option enables support for the ARM architected timer
|
|
|
|
config HAVE_ARM_TWD
|
|
bool
|
|
select CLKSRC_OF if OF
|
|
help
|
|
This options enables support for the ARM timer and watchdog unit
|
|
|
|
config MCPM
|
|
bool "Multi-Cluster Power Management"
|
|
depends on CPU_V7 && SMP
|
|
help
|
|
This option provides the common power management infrastructure
|
|
for (multi-)cluster based systems, such as big.LITTLE based
|
|
systems.
|
|
|
|
config MCPM_QUAD_CLUSTER
|
|
bool
|
|
depends on MCPM
|
|
help
|
|
To avoid wasting resources unnecessarily, MCPM only supports up
|
|
to 2 clusters by default.
|
|
Platforms with 3 or 4 clusters that use MCPM must select this
|
|
option to allow the additional clusters to be managed.
|
|
|
|
config BIG_LITTLE
|
|
bool "big.LITTLE support (Experimental)"
|
|
depends on CPU_V7 && SMP
|
|
select MCPM
|
|
help
|
|
This option enables support selections for the big.LITTLE
|
|
system architecture.
|
|
|
|
config BL_SWITCHER
|
|
bool "big.LITTLE switcher support"
|
|
depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
|
|
select ARM_CPU_SUSPEND
|
|
select CPU_PM
|
|
help
|
|
The big.LITTLE "switcher" provides the core functionality to
|
|
transparently handle transition between a cluster of A15's
|
|
and a cluster of A7's in a big.LITTLE system.
|
|
|
|
config BL_SWITCHER_DUMMY_IF
|
|
tristate "Simple big.LITTLE switcher user interface"
|
|
depends on BL_SWITCHER && DEBUG_KERNEL
|
|
help
|
|
This is a simple and dummy char dev interface to control
|
|
the big.LITTLE switcher core code. It is meant for
|
|
debugging purposes only.
|
|
|
|
choice
|
|
prompt "Memory split"
|
|
depends on MMU
|
|
default VMSPLIT_3G
|
|
help
|
|
Select the desired split between kernel and user memory.
|
|
|
|
If you are not absolutely sure what you are doing, leave this
|
|
option alone!
|
|
|
|
config VMSPLIT_3G
|
|
bool "3G/1G user/kernel split"
|
|
config VMSPLIT_3G_OPT
|
|
bool "3G/1G user/kernel split (for full 1G low memory)"
|
|
config VMSPLIT_2G
|
|
bool "2G/2G user/kernel split"
|
|
config VMSPLIT_1G
|
|
bool "1G/3G user/kernel split"
|
|
endchoice
|
|
|
|
config PAGE_OFFSET
|
|
hex
|
|
default PHYS_OFFSET if !MMU
|
|
default 0x40000000 if VMSPLIT_1G
|
|
default 0x80000000 if VMSPLIT_2G
|
|
default 0xB0000000 if VMSPLIT_3G_OPT
|
|
default 0xC0000000
|
|
|
|
config NR_CPUS
|
|
int "Maximum number of CPUs (2-32)"
|
|
range 2 32
|
|
depends on SMP
|
|
default "4"
|
|
|
|
config HOTPLUG_CPU
|
|
bool "Support for hot-pluggable CPUs"
|
|
depends on SMP
|
|
help
|
|
Say Y here to experiment with turning CPUs off and on. CPUs
|
|
can be controlled through /sys/devices/system/cpu.
|
|
|
|
config ARM_PSCI
|
|
bool "Support for the ARM Power State Coordination Interface (PSCI)"
|
|
depends on CPU_V7
|
|
select ARM_PSCI_FW
|
|
help
|
|
Say Y here if you want Linux to communicate with system firmware
|
|
implementing the PSCI specification for CPU-centric power
|
|
management operations described in ARM document number ARM DEN
|
|
0022A ("Power State Coordination Interface System Software on
|
|
ARM processors").
|
|
|
|
# The GPIO number here must be sorted by descending number. In case of
|
|
# a multiplatform kernel, we just want the highest value required by the
|
|
# selected platforms.
|
|
config ARCH_NR_GPIO
|
|
int
|
|
default 1024 if ARCH_BRCMSTB || ARCH_SHMOBILE || ARCH_TEGRA || \
|
|
ARCH_ZYNQ || ARCH_QCOM
|
|
default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
|
|
SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
|
|
default 416 if ARCH_SUNXI
|
|
default 392 if ARCH_U8500
|
|
default 352 if ARCH_VT8500
|
|
default 288 if ARCH_ROCKCHIP
|
|
default 264 if MACH_H4700
|
|
default 0
|
|
help
|
|
Maximum number of GPIOs in the system.
|
|
|
|
If unsure, leave the default value.
|
|
|
|
source kernel/Kconfig.preempt
|
|
|
|
config HZ_FIXED
|
|
int
|
|
default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
|
|
ARCH_S5PV210 || ARCH_EXYNOS4
|
|
default 128 if SOC_AT91RM9200
|
|
default 0
|
|
|
|
choice
|
|
depends on HZ_FIXED = 0
|
|
prompt "Timer frequency"
|
|
|
|
config HZ_100
|
|
bool "100 Hz"
|
|
|
|
config HZ_200
|
|
bool "200 Hz"
|
|
|
|
config HZ_250
|
|
bool "250 Hz"
|
|
|
|
config HZ_300
|
|
bool "300 Hz"
|
|
|
|
config HZ_500
|
|
bool "500 Hz"
|
|
|
|
config HZ_1000
|
|
bool "1000 Hz"
|
|
|
|
endchoice
|
|
|
|
config HZ
|
|
int
|
|
default HZ_FIXED if HZ_FIXED != 0
|
|
default 100 if HZ_100
|
|
default 200 if HZ_200
|
|
default 250 if HZ_250
|
|
default 300 if HZ_300
|
|
default 500 if HZ_500
|
|
default 1000
|
|
|
|
config SCHED_HRTICK
|
|
def_bool HIGH_RES_TIMERS
|
|
|
|
config THUMB2_KERNEL
|
|
bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
|
|
depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
|
|
default y if CPU_THUMBONLY
|
|
select AEABI
|
|
select ARM_ASM_UNIFIED
|
|
select ARM_UNWIND
|
|
help
|
|
By enabling this option, the kernel will be compiled in
|
|
Thumb-2 mode. A compiler/assembler that understand the unified
|
|
ARM-Thumb syntax is needed.
|
|
|
|
If unsure, say N.
|
|
|
|
config THUMB2_AVOID_R_ARM_THM_JUMP11
|
|
bool "Work around buggy Thumb-2 short branch relocations in gas"
|
|
depends on THUMB2_KERNEL && MODULES
|
|
default y
|
|
help
|
|
Various binutils versions can resolve Thumb-2 branches to
|
|
locally-defined, preemptible global symbols as short-range "b.n"
|
|
branch instructions.
|
|
|
|
This is a problem, because there's no guarantee the final
|
|
destination of the symbol, or any candidate locations for a
|
|
trampoline, are within range of the branch. For this reason, the
|
|
kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
|
|
relocation in modules at all, and it makes little sense to add
|
|
support.
|
|
|
|
The symptom is that the kernel fails with an "unsupported
|
|
relocation" error when loading some modules.
|
|
|
|
Until fixed tools are available, passing
|
|
-fno-optimize-sibling-calls to gcc should prevent gcc generating
|
|
code which hits this problem, at the cost of a bit of extra runtime
|
|
stack usage in some cases.
|
|
|
|
The problem is described in more detail at:
|
|
https://bugs.launchpad.net/binutils-linaro/+bug/725126
|
|
|
|
Only Thumb-2 kernels are affected.
|
|
|
|
Unless you are sure your tools don't have this problem, say Y.
|
|
|
|
config ARM_ASM_UNIFIED
|
|
bool
|
|
|
|
config AEABI
|
|
bool "Use the ARM EABI to compile the kernel"
|
|
help
|
|
This option allows for the kernel to be compiled using the latest
|
|
ARM ABI (aka EABI). This is only useful if you are using a user
|
|
space environment that is also compiled with EABI.
|
|
|
|
Since there are major incompatibilities between the legacy ABI and
|
|
EABI, especially with regard to structure member alignment, this
|
|
option also changes the kernel syscall calling convention to
|
|
disambiguate both ABIs and allow for backward compatibility support
|
|
(selected with CONFIG_OABI_COMPAT).
|
|
|
|
To use this you need GCC version 4.0.0 or later.
|
|
|
|
config OABI_COMPAT
|
|
bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
|
|
depends on AEABI && !THUMB2_KERNEL
|
|
help
|
|
This option preserves the old syscall interface along with the
|
|
new (ARM EABI) one. It also provides a compatibility layer to
|
|
intercept syscalls that have structure arguments which layout
|
|
in memory differs between the legacy ABI and the new ARM EABI
|
|
(only for non "thumb" binaries). This option adds a tiny
|
|
overhead to all syscalls and produces a slightly larger kernel.
|
|
|
|
The seccomp filter system will not be available when this is
|
|
selected, since there is no way yet to sensibly distinguish
|
|
between calling conventions during filtering.
|
|
|
|
If you know you'll be using only pure EABI user space then you
|
|
can say N here. If this option is not selected and you attempt
|
|
to execute a legacy ABI binary then the result will be
|
|
UNPREDICTABLE (in fact it can be predicted that it won't work
|
|
at all). If in doubt say N.
|
|
|
|
config ARCH_HAS_HOLES_MEMORYMODEL
|
|
bool
|
|
|
|
config ARCH_SPARSEMEM_ENABLE
|
|
bool
|
|
|
|
config ARCH_SPARSEMEM_DEFAULT
|
|
def_bool ARCH_SPARSEMEM_ENABLE
|
|
|
|
config ARCH_SELECT_MEMORY_MODEL
|
|
def_bool ARCH_SPARSEMEM_ENABLE
|
|
|
|
config HAVE_ARCH_PFN_VALID
|
|
def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
|
|
|
|
config HAVE_GENERIC_RCU_GUP
|
|
def_bool y
|
|
depends on ARM_LPAE
|
|
|
|
config HIGHMEM
|
|
bool "High Memory Support"
|
|
depends on MMU
|
|
help
|
|
The address space of ARM processors is only 4 Gigabytes large
|
|
and it has to accommodate user address space, kernel address
|
|
space as well as some memory mapped IO. That means that, if you
|
|
have a large amount of physical memory and/or IO, not all of the
|
|
memory can be "permanently mapped" by the kernel. The physical
|
|
memory that is not permanently mapped is called "high memory".
|
|
|
|
Depending on the selected kernel/user memory split, minimum
|
|
vmalloc space and actual amount of RAM, you may not need this
|
|
option which should result in a slightly faster kernel.
|
|
|
|
If unsure, say n.
|
|
|
|
config HIGHPTE
|
|
bool "Allocate 2nd-level pagetables from highmem" if EXPERT
|
|
depends on HIGHMEM
|
|
default y
|
|
help
|
|
The VM uses one page of physical memory for each page table.
|
|
For systems with a lot of processes, this can use a lot of
|
|
precious low memory, eventually leading to low memory being
|
|
consumed by page tables. Setting this option will allow
|
|
user-space 2nd level page tables to reside in high memory.
|
|
|
|
config CPU_SW_DOMAIN_PAN
|
|
bool "Enable use of CPU domains to implement privileged no-access"
|
|
depends on MMU && !ARM_LPAE
|
|
default y
|
|
help
|
|
Increase kernel security by ensuring that normal kernel accesses
|
|
are unable to access userspace addresses. This can help prevent
|
|
use-after-free bugs becoming an exploitable privilege escalation
|
|
by ensuring that magic values (such as LIST_POISON) will always
|
|
fault when dereferenced.
|
|
|
|
CPUs with low-vector mappings use a best-efforts implementation.
|
|
Their lower 1MB needs to remain accessible for the vectors, but
|
|
the remainder of userspace will become appropriately inaccessible.
|
|
|
|
config HW_PERF_EVENTS
|
|
def_bool y
|
|
depends on ARM_PMU
|
|
|
|
config SYS_SUPPORTS_HUGETLBFS
|
|
def_bool y
|
|
depends on ARM_LPAE
|
|
|
|
config HAVE_ARCH_TRANSPARENT_HUGEPAGE
|
|
def_bool y
|
|
depends on ARM_LPAE
|
|
|
|
config ARCH_WANT_GENERAL_HUGETLB
|
|
def_bool y
|
|
|
|
config ARM_MODULE_PLTS
|
|
bool "Use PLTs to allow module memory to spill over into vmalloc area"
|
|
depends on MODULES
|
|
help
|
|
Allocate PLTs when loading modules so that jumps and calls whose
|
|
targets are too far away for their relative offsets to be encoded
|
|
in the instructions themselves can be bounced via veneers in the
|
|
module's PLT. This allows modules to be allocated in the generic
|
|
vmalloc area after the dedicated module memory area has been
|
|
exhausted. The modules will use slightly more memory, but after
|
|
rounding up to page size, the actual memory footprint is usually
|
|
the same.
|
|
|
|
Say y if you are getting out of memory errors while loading modules
|
|
|
|
source "mm/Kconfig"
|
|
|
|
choice
|
|
prompt "Virtual Memory Reclaim"
|
|
default NO_VM_RECLAIM
|
|
help
|
|
Select the method of reclaiming virtual memory
|
|
|
|
config ENABLE_VMALLOC_SAVING
|
|
bool "Reclaim memory for each subsystem"
|
|
help
|
|
Enable this config to reclaim the virtual space belonging
|
|
to any subsystem which is expected to have a lifetime of
|
|
the entire system. This feature allows lowmem to be non-
|
|
contiguous.
|
|
|
|
config NO_VM_RECLAIM
|
|
bool "Do not reclaim memory"
|
|
help
|
|
Do not reclaim any memory. This might result in less lowmem
|
|
and wasting virtual memory space which could otherwise be
|
|
reclaimed by using any of the other two config options.
|
|
|
|
endchoice
|
|
|
|
config FORCE_MAX_ZONEORDER
|
|
int "Maximum zone order"
|
|
default "12" if SOC_AM33XX
|
|
default "9" if SA1111 || ARCH_EFM32
|
|
default "11"
|
|
help
|
|
The kernel memory allocator divides physically contiguous memory
|
|
blocks into "zones", where each zone is a power of two number of
|
|
pages. This option selects the largest power of two that the kernel
|
|
keeps in the memory allocator. If you need to allocate very large
|
|
blocks of physically contiguous memory, then you may need to
|
|
increase this value.
|
|
|
|
This config option is actually maximum order plus one. For example,
|
|
a value of 11 means that the largest free memory block is 2^10 pages.
|
|
|
|
config ALIGNMENT_TRAP
|
|
bool
|
|
depends on CPU_CP15_MMU
|
|
default y if !ARCH_EBSA110
|
|
select HAVE_PROC_CPU if PROC_FS
|
|
help
|
|
ARM processors cannot fetch/store information which is not
|
|
naturally aligned on the bus, i.e., a 4 byte fetch must start at an
|
|
address divisible by 4. On 32-bit ARM processors, these non-aligned
|
|
fetch/store instructions will be emulated in software if you say
|
|
here, which has a severe performance impact. This is necessary for
|
|
correct operation of some network protocols. With an IP-only
|
|
configuration it is safe to say N, otherwise say Y.
|
|
|
|
config UACCESS_WITH_MEMCPY
|
|
bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
|
|
depends on MMU
|
|
default y if CPU_FEROCEON
|
|
help
|
|
Implement faster copy_to_user and clear_user methods for CPU
|
|
cores where a 8-word STM instruction give significantly higher
|
|
memory write throughput than a sequence of individual 32bit stores.
|
|
|
|
A possible side effect is a slight increase in scheduling latency
|
|
between threads sharing the same address space if they invoke
|
|
such copy operations with large buffers.
|
|
|
|
However, if the CPU data cache is using a write-allocate mode,
|
|
this option is unlikely to provide any performance gain.
|
|
|
|
config SECCOMP
|
|
bool
|
|
prompt "Enable seccomp to safely compute untrusted bytecode"
|
|
---help---
|
|
This kernel feature is useful for number crunching applications
|
|
that may need to compute untrusted bytecode during their
|
|
execution. By using pipes or other transports made available to
|
|
the process as file descriptors supporting the read/write
|
|
syscalls, it's possible to isolate those applications in
|
|
their own address space using seccomp. Once seccomp is
|
|
enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
|
|
and the task is only allowed to execute a few safe syscalls
|
|
defined by each seccomp mode.
|
|
|
|
config SWIOTLB
|
|
def_bool y
|
|
|
|
config IOMMU_HELPER
|
|
def_bool SWIOTLB
|
|
|
|
config XEN_DOM0
|
|
def_bool y
|
|
depends on XEN
|
|
|
|
config XEN
|
|
bool "Xen guest support on ARM"
|
|
depends on ARM && AEABI && OF
|
|
depends on CPU_V7 && !CPU_V6
|
|
depends on !GENERIC_ATOMIC64
|
|
depends on MMU
|
|
select ARCH_DMA_ADDR_T_64BIT
|
|
select ARM_PSCI
|
|
select SWIOTLB_XEN
|
|
help
|
|
Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
|
|
|
|
config ARM_FLUSH_CONSOLE_ON_RESTART
|
|
bool "Force flush the console on restart"
|
|
help
|
|
If the console is locked while the system is rebooted, the messages
|
|
in the temporary logbuffer would not have propogated to all the
|
|
console drivers. This option forces the console lock to be
|
|
released if it failed to be acquired, which will cause all the
|
|
pending messages to be flushed.
|
|
|
|
endmenu
|
|
|
|
menu "Boot options"
|
|
|
|
config USE_OF
|
|
bool "Flattened Device Tree support"
|
|
select IRQ_DOMAIN
|
|
select OF
|
|
help
|
|
Include support for flattened device tree machine descriptions.
|
|
|
|
config ATAGS
|
|
bool "Support for the traditional ATAGS boot data passing" if USE_OF
|
|
default y
|
|
help
|
|
This is the traditional way of passing data to the kernel at boot
|
|
time. If you are solely relying on the flattened device tree (or
|
|
the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
|
|
to remove ATAGS support from your kernel binary. If unsure,
|
|
leave this to y.
|
|
|
|
config DEPRECATED_PARAM_STRUCT
|
|
bool "Provide old way to pass kernel parameters"
|
|
depends on ATAGS
|
|
help
|
|
This was deprecated in 2001 and announced to live on for 5 years.
|
|
Some old boot loaders still use this way.
|
|
|
|
config BUILD_ARM_APPENDED_DTB_IMAGE
|
|
bool "Build a concatenated zImage/dtb by default"
|
|
depends on OF
|
|
help
|
|
Enabling this option will cause a concatenated zImage and list of
|
|
DTBs to be built by default (instead of a standalone zImage.)
|
|
The image will built in arch/arm/boot/zImage-dtb
|
|
|
|
config BUILD_ARM_APPENDED_DTB_IMAGE_NAMES
|
|
string "Default dtb names"
|
|
depends on BUILD_ARM_APPENDED_DTB_IMAGE
|
|
help
|
|
Space separated list of names of dtbs to append when
|
|
building a concatenated zImage-dtb.
|
|
|
|
# Compressed boot loader in ROM. Yes, we really want to ask about
|
|
# TEXT and BSS so we preserve their values in the config files.
|
|
config ZBOOT_ROM_TEXT
|
|
hex "Compressed ROM boot loader base address"
|
|
default "0"
|
|
help
|
|
The physical address at which the ROM-able zImage is to be
|
|
placed in the target. Platforms which normally make use of
|
|
ROM-able zImage formats normally set this to a suitable
|
|
value in their defconfig file.
|
|
|
|
If ZBOOT_ROM is not enabled, this has no effect.
|
|
|
|
config ZBOOT_ROM_BSS
|
|
hex "Compressed ROM boot loader BSS address"
|
|
default "0"
|
|
help
|
|
The base address of an area of read/write memory in the target
|
|
for the ROM-able zImage which must be available while the
|
|
decompressor is running. It must be large enough to hold the
|
|
entire decompressed kernel plus an additional 128 KiB.
|
|
Platforms which normally make use of ROM-able zImage formats
|
|
normally set this to a suitable value in their defconfig file.
|
|
|
|
If ZBOOT_ROM is not enabled, this has no effect.
|
|
|
|
config ZBOOT_ROM
|
|
bool "Compressed boot loader in ROM/flash"
|
|
depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
|
|
depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
|
|
help
|
|
Say Y here if you intend to execute your compressed kernel image
|
|
(zImage) directly from ROM or flash. If unsure, say N.
|
|
|
|
config ARM_APPENDED_DTB
|
|
bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
|
|
depends on OF
|
|
help
|
|
With this option, the boot code will look for a device tree binary
|
|
(DTB) appended to zImage
|
|
(e.g. cat zImage <filename>.dtb > zImage_w_dtb).
|
|
|
|
This is meant as a backward compatibility convenience for those
|
|
systems with a bootloader that can't be upgraded to accommodate
|
|
the documented boot protocol using a device tree.
|
|
|
|
Beware that there is very little in terms of protection against
|
|
this option being confused by leftover garbage in memory that might
|
|
look like a DTB header after a reboot if no actual DTB is appended
|
|
to zImage. Do not leave this option active in a production kernel
|
|
if you don't intend to always append a DTB. Proper passing of the
|
|
location into r2 of a bootloader provided DTB is always preferable
|
|
to this option.
|
|
|
|
config ARM_ATAG_DTB_COMPAT
|
|
bool "Supplement the appended DTB with traditional ATAG information"
|
|
depends on ARM_APPENDED_DTB
|
|
help
|
|
Some old bootloaders can't be updated to a DTB capable one, yet
|
|
they provide ATAGs with memory configuration, the ramdisk address,
|
|
the kernel cmdline string, etc. Such information is dynamically
|
|
provided by the bootloader and can't always be stored in a static
|
|
DTB. To allow a device tree enabled kernel to be used with such
|
|
bootloaders, this option allows zImage to extract the information
|
|
from the ATAG list and store it at run time into the appended DTB.
|
|
|
|
choice
|
|
prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
|
|
default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
|
|
|
|
config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
|
|
bool "Use bootloader kernel arguments if available"
|
|
help
|
|
Uses the command-line options passed by the boot loader instead of
|
|
the device tree bootargs property. If the boot loader doesn't provide
|
|
any, the device tree bootargs property will be used.
|
|
|
|
config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
|
|
bool "Extend with bootloader kernel arguments"
|
|
help
|
|
The command-line arguments provided by the boot loader will be
|
|
appended to the the device tree bootargs property.
|
|
|
|
endchoice
|
|
|
|
config CMDLINE
|
|
string "Default kernel command string"
|
|
default ""
|
|
help
|
|
On some architectures (EBSA110 and CATS), there is currently no way
|
|
for the boot loader to pass arguments to the kernel. For these
|
|
architectures, you should supply some command-line options at build
|
|
time by entering them here. As a minimum, you should specify the
|
|
memory size and the root device (e.g., mem=64M root=/dev/nfs).
|
|
|
|
choice
|
|
prompt "Kernel command line type" if CMDLINE != ""
|
|
default CMDLINE_FROM_BOOTLOADER
|
|
depends on ATAGS
|
|
|
|
config CMDLINE_FROM_BOOTLOADER
|
|
bool "Use bootloader kernel arguments if available"
|
|
help
|
|
Uses the command-line options passed by the boot loader. If
|
|
the boot loader doesn't provide any, the default kernel command
|
|
string provided in CMDLINE will be used.
|
|
|
|
config CMDLINE_EXTEND
|
|
bool "Extend bootloader kernel arguments"
|
|
help
|
|
The command-line arguments provided by the boot loader will be
|
|
appended to the default kernel command string.
|
|
|
|
config CMDLINE_FORCE
|
|
bool "Always use the default kernel command string"
|
|
help
|
|
Always use the default kernel command string, even if the boot
|
|
loader passes other arguments to the kernel.
|
|
This is useful if you cannot or don't want to change the
|
|
command-line options your boot loader passes to the kernel.
|
|
endchoice
|
|
|
|
config XIP_KERNEL
|
|
bool "Kernel Execute-In-Place from ROM"
|
|
depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
|
|
help
|
|
Execute-In-Place allows the kernel to run from non-volatile storage
|
|
directly addressable by the CPU, such as NOR flash. This saves RAM
|
|
space since the text section of the kernel is not loaded from flash
|
|
to RAM. Read-write sections, such as the data section and stack,
|
|
are still copied to RAM. The XIP kernel is not compressed since
|
|
it has to run directly from flash, so it will take more space to
|
|
store it. The flash address used to link the kernel object files,
|
|
and for storing it, is configuration dependent. Therefore, if you
|
|
say Y here, you must know the proper physical address where to
|
|
store the kernel image depending on your own flash memory usage.
|
|
|
|
Also note that the make target becomes "make xipImage" rather than
|
|
"make zImage" or "make Image". The final kernel binary to put in
|
|
ROM memory will be arch/arm/boot/xipImage.
|
|
|
|
If unsure, say N.
|
|
|
|
config XIP_PHYS_ADDR
|
|
hex "XIP Kernel Physical Location"
|
|
depends on XIP_KERNEL
|
|
default "0x00080000"
|
|
help
|
|
This is the physical address in your flash memory the kernel will
|
|
be linked for and stored to. This address is dependent on your
|
|
own flash usage.
|
|
|
|
config KEXEC
|
|
bool "Kexec system call (EXPERIMENTAL)"
|
|
depends on (!SMP || PM_SLEEP_SMP)
|
|
depends on !CPU_V7M
|
|
select KEXEC_CORE
|
|
help
|
|
kexec is a system call that implements the ability to shutdown your
|
|
current kernel, and to start another kernel. It is like a reboot
|
|
but it is independent of the system firmware. And like a reboot
|
|
you can start any kernel with it, not just Linux.
|
|
|
|
It is an ongoing process to be certain the hardware in a machine
|
|
is properly shutdown, so do not be surprised if this code does not
|
|
initially work for you.
|
|
|
|
config ATAGS_PROC
|
|
bool "Export atags in procfs"
|
|
depends on ATAGS && KEXEC
|
|
default y
|
|
help
|
|
Should the atags used to boot the kernel be exported in an "atags"
|
|
file in procfs. Useful with kexec.
|
|
|
|
config CRASH_DUMP
|
|
bool "Build kdump crash kernel (EXPERIMENTAL)"
|
|
help
|
|
Generate crash dump after being started by kexec. This should
|
|
be normally only set in special crash dump kernels which are
|
|
loaded in the main kernel with kexec-tools into a specially
|
|
reserved region and then later executed after a crash by
|
|
kdump/kexec. The crash dump kernel must be compiled to a
|
|
memory address not used by the main kernel
|
|
|
|
For more details see Documentation/kdump/kdump.txt
|
|
|
|
config AUTO_ZRELADDR
|
|
bool "Auto calculation of the decompressed kernel image address"
|
|
help
|
|
ZRELADDR is the physical address where the decompressed kernel
|
|
image will be placed. If AUTO_ZRELADDR is selected, the address
|
|
will be determined at run-time by masking the current IP with
|
|
0xf8000000. This assumes the zImage being placed in the first 128MB
|
|
from start of memory.
|
|
|
|
endmenu
|
|
|
|
menu "CPU Power Management"
|
|
|
|
source "drivers/cpufreq/Kconfig"
|
|
|
|
source "drivers/cpuidle/Kconfig"
|
|
|
|
endmenu
|
|
|
|
menu "Floating point emulation"
|
|
|
|
comment "At least one emulation must be selected"
|
|
|
|
config FPE_NWFPE
|
|
bool "NWFPE math emulation"
|
|
depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
|
|
---help---
|
|
Say Y to include the NWFPE floating point emulator in the kernel.
|
|
This is necessary to run most binaries. Linux does not currently
|
|
support floating point hardware so you need to say Y here even if
|
|
your machine has an FPA or floating point co-processor podule.
|
|
|
|
You may say N here if you are going to load the Acorn FPEmulator
|
|
early in the bootup.
|
|
|
|
config FPE_NWFPE_XP
|
|
bool "Support extended precision"
|
|
depends on FPE_NWFPE
|
|
help
|
|
Say Y to include 80-bit support in the kernel floating-point
|
|
emulator. Otherwise, only 32 and 64-bit support is compiled in.
|
|
Note that gcc does not generate 80-bit operations by default,
|
|
so in most cases this option only enlarges the size of the
|
|
floating point emulator without any good reason.
|
|
|
|
You almost surely want to say N here.
|
|
|
|
config FPE_FASTFPE
|
|
bool "FastFPE math emulation (EXPERIMENTAL)"
|
|
depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
|
|
---help---
|
|
Say Y here to include the FAST floating point emulator in the kernel.
|
|
This is an experimental much faster emulator which now also has full
|
|
precision for the mantissa. It does not support any exceptions.
|
|
It is very simple, and approximately 3-6 times faster than NWFPE.
|
|
|
|
It should be sufficient for most programs. It may be not suitable
|
|
for scientific calculations, but you have to check this for yourself.
|
|
If you do not feel you need a faster FP emulation you should better
|
|
choose NWFPE.
|
|
|
|
config VFP
|
|
bool "VFP-format floating point maths"
|
|
depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
|
|
help
|
|
Say Y to include VFP support code in the kernel. This is needed
|
|
if your hardware includes a VFP unit.
|
|
|
|
Please see <file:Documentation/arm/VFP/release-notes.txt> for
|
|
release notes and additional status information.
|
|
|
|
Say N if your target does not have VFP hardware.
|
|
|
|
config VFPv3
|
|
bool
|
|
depends on VFP
|
|
default y if CPU_V7
|
|
|
|
config NEON
|
|
bool "Advanced SIMD (NEON) Extension support"
|
|
depends on VFPv3 && CPU_V7
|
|
help
|
|
Say Y to include support code for NEON, the ARMv7 Advanced SIMD
|
|
Extension.
|
|
|
|
config KERNEL_MODE_NEON
|
|
bool "Support for NEON in kernel mode"
|
|
depends on NEON && AEABI
|
|
help
|
|
Say Y to include support for NEON in kernel mode.
|
|
|
|
endmenu
|
|
|
|
menu "Userspace binary formats"
|
|
|
|
source "fs/Kconfig.binfmt"
|
|
|
|
endmenu
|
|
|
|
menu "Power management options"
|
|
|
|
source "kernel/power/Kconfig"
|
|
|
|
config ARCH_SUSPEND_POSSIBLE
|
|
depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
|
|
CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
|
|
def_bool y
|
|
|
|
config ARM_CPU_SUSPEND
|
|
def_bool PM_SLEEP
|
|
|
|
config ARCH_HIBERNATION_POSSIBLE
|
|
bool
|
|
depends on MMU
|
|
default y if ARCH_SUSPEND_POSSIBLE
|
|
|
|
endmenu
|
|
|
|
source "net/Kconfig"
|
|
|
|
source "drivers/Kconfig"
|
|
|
|
source "drivers/firmware/Kconfig"
|
|
|
|
source "fs/Kconfig"
|
|
|
|
source "arch/arm/Kconfig.debug"
|
|
|
|
source "security/Kconfig"
|
|
|
|
source "crypto/Kconfig"
|
|
if CRYPTO
|
|
source "arch/arm/crypto/Kconfig"
|
|
endif
|
|
|
|
source "lib/Kconfig"
|
|
|
|
source "arch/arm/kvm/Kconfig"
|