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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /arch/powerpc/platforms/Kconfig
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to '')
-rw-r--r--arch/powerpc/platforms/Kconfig302
-rw-r--r--arch/powerpc/platforms/Kconfig.cputype590
2 files changed, 892 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
new file mode 100644
index 000000000..d41dad227
--- /dev/null
+++ b/arch/powerpc/platforms/Kconfig
@@ -0,0 +1,302 @@
+# SPDX-License-Identifier: GPL-2.0
+menu "Platform support"
+
+source "arch/powerpc/platforms/powernv/Kconfig"
+source "arch/powerpc/platforms/pseries/Kconfig"
+source "arch/powerpc/platforms/chrp/Kconfig"
+source "arch/powerpc/platforms/512x/Kconfig"
+source "arch/powerpc/platforms/52xx/Kconfig"
+source "arch/powerpc/platforms/powermac/Kconfig"
+source "arch/powerpc/platforms/maple/Kconfig"
+source "arch/powerpc/platforms/pasemi/Kconfig"
+source "arch/powerpc/platforms/ps3/Kconfig"
+source "arch/powerpc/platforms/cell/Kconfig"
+source "arch/powerpc/platforms/8xx/Kconfig"
+source "arch/powerpc/platforms/82xx/Kconfig"
+source "arch/powerpc/platforms/83xx/Kconfig"
+source "arch/powerpc/platforms/85xx/Kconfig"
+source "arch/powerpc/platforms/86xx/Kconfig"
+source "arch/powerpc/platforms/embedded6xx/Kconfig"
+source "arch/powerpc/platforms/44x/Kconfig"
+source "arch/powerpc/platforms/40x/Kconfig"
+source "arch/powerpc/platforms/amigaone/Kconfig"
+source "arch/powerpc/platforms/book3s/Kconfig"
+source "arch/powerpc/platforms/microwatt/Kconfig"
+
+config KVM_GUEST
+ bool "KVM Guest support"
+ select EPAPR_PARAVIRT
+ help
+ This option enables various optimizations for running under the KVM
+ hypervisor. Overhead for the kernel when not running inside KVM should
+ be minimal.
+
+ In case of doubt, say Y
+
+config EPAPR_PARAVIRT
+ bool "ePAPR para-virtualization support"
+ help
+ Enables ePAPR para-virtualization support for guests.
+
+ In case of doubt, say Y
+
+config PPC_HASH_MMU_NATIVE
+ bool
+ depends on PPC_BOOK3S
+ help
+ Support for running natively on the hardware, i.e. without
+ a hypervisor. This option is not user-selectable but should
+ be selected by all platforms that need it.
+
+config PPC_OF_BOOT_TRAMPOLINE
+ bool "Support booting from Open Firmware or yaboot"
+ depends on PPC_BOOK3S_32 || PPC64
+ select RELOCATABLE if PPC64
+ default y
+ help
+ Support from booting from Open Firmware or yaboot using an
+ Open Firmware client interface. This enables the kernel to
+ communicate with open firmware to retrieve system information
+ such as the device tree.
+
+ In case of doubt, say Y
+
+config PPC_DT_CPU_FTRS
+ bool "Device-tree based CPU feature discovery & setup"
+ depends on PPC_BOOK3S_64
+ default y
+ help
+ This enables code to use a new device tree binding for describing CPU
+ compatibility and features. Saying Y here will attempt to use the new
+ binding if the firmware provides it. Currently only the skiboot
+ firmware provides this binding.
+ If you're not sure say Y.
+
+config UDBG_RTAS_CONSOLE
+ bool "RTAS based debug console"
+ depends on PPC_RTAS
+
+config PPC_SMP_MUXED_IPI
+ bool
+ help
+ Select this option if your platform supports SMP and your
+ interrupt controller provides less than 4 interrupts to each
+ cpu. This will enable the generic code to multiplex the 4
+ messages on to one ipi.
+
+config IPIC
+ bool
+
+config MPIC
+ bool
+
+config MPIC_TIMER
+ bool "MPIC Global Timer"
+ depends on MPIC && FSL_SOC
+ help
+ The MPIC global timer is a hardware timer inside the
+ Freescale PIC complying with OpenPIC standard. When the
+ specified interval times out, the hardware timer generates
+ an interrupt. The driver currently is only tested on fsl
+ chip, but it can potentially support other global timers
+ complying with the OpenPIC standard.
+
+config FSL_MPIC_TIMER_WAKEUP
+ tristate "Freescale MPIC global timer wakeup driver"
+ depends on FSL_SOC && MPIC_TIMER && PM
+ help
+ The driver provides a way to wake up the system by MPIC
+ timer.
+ e.g. "echo 5 > /sys/devices/system/mpic/timer_wakeup"
+
+config PPC_EPAPR_HV_PIC
+ bool
+ select EPAPR_PARAVIRT
+
+config MPIC_WEIRD
+ bool
+
+config MPIC_MSGR
+ bool "MPIC message register support"
+ depends on MPIC
+ help
+ Enables support for the MPIC message registers. These
+ registers are used for inter-processor communication.
+
+config PPC_I8259
+ bool
+
+config U3_DART
+ bool
+ depends on PPC64
+
+config PPC_RTAS
+ bool
+
+config RTAS_ERROR_LOGGING
+ bool
+ depends on PPC_RTAS
+
+config PPC_RTAS_DAEMON
+ bool
+ depends on PPC_RTAS
+
+config RTAS_PROC
+ bool "Proc interface to RTAS"
+ depends on PPC_RTAS && PROC_FS
+ default y
+
+config RTAS_FLASH
+ tristate "Firmware flash interface"
+ depends on PPC64 && RTAS_PROC
+
+config MMIO_NVRAM
+ bool
+
+config MPIC_U3_HT_IRQS
+ bool
+
+config MPIC_BROKEN_REGREAD
+ bool
+ depends on MPIC
+ help
+ This option enables a MPIC driver workaround for some chips
+ that have a bug that causes some interrupt source information
+ to not read back properly. It is safe to use on other chips as
+ well, but enabling it uses about 8KB of memory to keep copies
+ of the register contents in software.
+
+config EEH
+ bool
+ depends on (PPC_POWERNV || PPC_PSERIES) && PCI
+ default y
+
+config PPC_MPC106
+ bool
+
+config PPC_970_NAP
+ bool
+
+config PPC_P7_NAP
+ bool
+
+config PPC_BOOK3S_IDLE
+ def_bool y
+ depends on (PPC_970_NAP || PPC_P7_NAP)
+
+config PPC_INDIRECT_PIO
+ bool
+ select GENERIC_IOMAP
+
+config PPC_INDIRECT_MMIO
+ bool
+
+config PPC_IO_WORKAROUNDS
+ bool
+
+source "drivers/cpufreq/Kconfig"
+
+menu "CPUIdle driver"
+
+source "drivers/cpuidle/Kconfig"
+
+endmenu
+
+config TAU
+ bool "On-chip CPU temperature sensor support"
+ depends on PPC_BOOK3S_32
+ help
+ G3 and G4 processors have an on-chip temperature sensor called the
+ 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
+ temperature within 2-4 degrees Celsius. This option shows the current
+ on-die temperature in /proc/cpuinfo if the cpu supports it.
+
+ Unfortunately, this sensor is very inaccurate when uncalibrated, so
+ don't assume the cpu temp is actually what /proc/cpuinfo says it is.
+
+config TAU_INT
+ bool "Interrupt driven TAU driver (EXPERIMENTAL)"
+ depends on TAU
+ help
+ The TAU supports an interrupt driven mode which causes an interrupt
+ whenever the temperature goes out of range. This is the fastest way
+ to get notified the temp has exceeded a range. With this option off,
+ a timer is used to re-check the temperature periodically.
+
+ If in doubt, say N here.
+
+config TAU_AVERAGE
+ bool "Average high and low temp"
+ depends on TAU
+ help
+ The TAU hardware can compare the temperature to an upper and lower
+ bound. The default behavior is to show both the upper and lower
+ bound in /proc/cpuinfo. If the range is large, the temperature is
+ either changing a lot, or the TAU hardware is broken (likely on some
+ G4's). If the range is small (around 4 degrees), the temperature is
+ relatively stable. If you say Y here, a single temperature value,
+ halfway between the upper and lower bounds, will be reported in
+ /proc/cpuinfo.
+
+ If in doubt, say N here.
+
+config QE_GPIO
+ bool "QE GPIO support"
+ depends on QUICC_ENGINE
+ select GPIOLIB
+ help
+ Say Y here if you're going to use hardware that connects to the
+ QE GPIOs.
+
+config CPM2
+ bool "Enable support for the CPM2 (Communications Processor Module)"
+ depends on (FSL_SOC_BOOKE && PPC32) || 8260
+ select CPM
+ select HAVE_PCI
+ select GPIOLIB
+ help
+ The CPM2 (Communications Processor Module) is a coprocessor on
+ embedded CPUs made by Freescale. Selecting this option means that
+ you wish to build a kernel for a machine with a CPM2 coprocessor
+ on it (826x, 827x, 8560).
+
+config FSL_ULI1575
+ bool
+ select GENERIC_ISA_DMA
+ help
+ Supports for the ULI1575 PCIe south bridge that exists on some
+ Freescale reference boards. The boards all use the ULI in pretty
+ much the same way.
+
+config CPM
+ bool
+ select GENERIC_ALLOCATOR
+
+config OF_RTC
+ bool
+ help
+ Uses information from the OF or flattened device tree to instantiate
+ platform devices for direct mapped RTC chips like the DS1742 or DS1743.
+
+config GEN_RTC
+ bool "Use the platform RTC operations from user space"
+ select RTC_CLASS
+ select RTC_DRV_GENERIC
+ help
+ This option provides backwards compatibility with the old gen_rtc.ko
+ module that was traditionally used for old PowerPC machines.
+ Platforms should migrate to enabling the RTC_DRV_GENERIC by hand
+ replacing their get_rtc_time/set_rtc_time callbacks with
+ a proper RTC device driver.
+
+config MCU_MPC8349EMITX
+ bool "MPC8349E-mITX MCU driver"
+ depends on I2C=y && PPC_83xx
+ select GPIOLIB
+ help
+ Say Y here to enable soft power-off functionality on the Freescale
+ boards with the MPC8349E-mITX-compatible MCU chips. This driver will
+ also register MCU GPIOs with the generic GPIO API, so you'll able
+ to use MCU pins as GPIOs.
+
+endmenu
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
new file mode 100644
index 000000000..9563336e3
--- /dev/null
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -0,0 +1,590 @@
+# SPDX-License-Identifier: GPL-2.0
+config PPC32
+ bool
+ default y if !PPC64
+
+config PPC64
+ bool "64-bit kernel"
+ select ZLIB_DEFLATE
+ help
+ This option selects whether a 32-bit or a 64-bit kernel
+ will be built.
+
+menu "Processor support"
+choice
+ prompt "Processor Type"
+ depends on PPC32
+ help
+ There are five families of 32 bit PowerPC chips supported.
+ The most common ones are the desktop and server CPUs (603,
+ 604, 740, 750, 74xx) CPUs from Freescale and IBM, with their
+ embedded 512x/52xx/82xx/83xx/86xx counterparts.
+ The other embedded parts, namely 4xx, 8xx and e500
+ (85xx) each form a family of their own that is not compatible
+ with the others.
+
+ If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
+
+config PPC_BOOK3S_32
+ bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
+ imply PPC_FPU
+ select PPC_HAVE_PMU_SUPPORT
+ select HAVE_ARCH_VMAP_STACK
+
+config PPC_85xx
+ bool "Freescale 85xx"
+ select PPC_E500
+
+config PPC_8xx
+ bool "Freescale 8xx"
+ select ARCH_SUPPORTS_HUGETLBFS
+ select FSL_SOC
+ select PPC_KUEP
+ select HAVE_ARCH_VMAP_STACK
+ select HUGETLBFS
+
+config 40x
+ bool "AMCC 40x"
+ select PPC_DCR_NATIVE
+ select PPC_UDBG_16550
+ select 4xx_SOC
+ select HAVE_PCI
+ select PPC_KUEP if PPC_KUAP
+
+config 44x
+ bool "AMCC 44x, 46x or 47x"
+ select PPC_DCR_NATIVE
+ select PPC_UDBG_16550
+ select 4xx_SOC
+ select HAVE_PCI
+ select PHYS_64BIT
+ select PPC_KUEP
+
+endchoice
+
+config PPC_BOOK3S_603
+ bool "Support for 603 SW loaded TLB"
+ depends on PPC_BOOK3S_32
+ default y
+ help
+ Provide support for processors based on the 603 cores. Those
+ processors don't have a HASH MMU and provide SW TLB loading.
+
+config PPC_BOOK3S_604
+ bool "Support for 604+ HASH MMU" if PPC_BOOK3S_603
+ depends on PPC_BOOK3S_32
+ default y
+ help
+ Provide support for processors not based on the 603 cores.
+ Those processors have a HASH MMU.
+
+choice
+ prompt "Processor Type"
+ depends on PPC64
+ help
+ There are two families of 64 bit PowerPC chips supported.
+ The most common ones are the desktop and server CPUs
+ (POWER5, 970, POWER5+, POWER6, POWER7, POWER8, POWER9 ...)
+
+ The other are the "embedded" processors compliant with the
+ "Book 3E" variant of the architecture
+
+config PPC_BOOK3S_64
+ bool "Server processors"
+ select PPC_FPU
+ select PPC_HAVE_PMU_SUPPORT
+ select HAVE_ARCH_TRANSPARENT_HUGEPAGE
+ select ARCH_ENABLE_HUGEPAGE_MIGRATION if HUGETLB_PAGE && MIGRATION
+ select ARCH_ENABLE_SPLIT_PMD_PTLOCK
+ select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE
+ select ARCH_SUPPORTS_HUGETLBFS
+ select ARCH_SUPPORTS_NUMA_BALANCING
+ select HAVE_MOVE_PMD
+ select HAVE_MOVE_PUD
+ select IRQ_WORK
+ select PPC_64S_HASH_MMU if !PPC_RADIX_MMU
+ select KASAN_VMALLOC if KASAN
+
+config PPC_BOOK3E_64
+ bool "Embedded processors"
+ select PPC_E500
+ select PPC_E500MC
+ select PPC_FPU # Make it a choice ?
+ select PPC_SMP_MUXED_IPI
+ select PPC_DOORBELL
+ select ZONE_DMA
+
+endchoice
+
+choice
+ prompt "CPU selection"
+ default GENERIC_CPU
+ help
+ This will create a kernel which is optimised for a particular CPU.
+ The resulting kernel may not run on other CPUs, so use this with care.
+
+ If unsure, select Generic.
+
+config GENERIC_CPU
+ bool "Generic (POWER5 and PowerPC 970 and above)"
+ depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
+ select PPC_64S_HASH_MMU
+
+config GENERIC_CPU
+ bool "Generic (POWER8 and above)"
+ depends on PPC_BOOK3S_64 && CPU_LITTLE_ENDIAN
+ select ARCH_HAS_FAST_MULTIPLIER
+ select PPC_64S_HASH_MMU
+ select PPC_HAS_LBARX_LHARX
+
+config POWERPC_CPU
+ bool "Generic 32 bits powerpc"
+ depends on PPC_BOOK3S_32
+
+config CELL_CPU
+ bool "Cell Broadband Engine"
+ depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
+ select PPC_64S_HASH_MMU
+
+config PPC_970_CPU
+ bool "PowerPC 970 (including PowerPC G5)"
+ depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
+ select PPC_64S_HASH_MMU
+
+config POWER6_CPU
+ bool "POWER6"
+ depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
+ select PPC_64S_HASH_MMU
+
+config POWER7_CPU
+ bool "POWER7"
+ depends on PPC_BOOK3S_64
+ select ARCH_HAS_FAST_MULTIPLIER
+ select PPC_64S_HASH_MMU
+ select PPC_HAS_LBARX_LHARX
+
+config POWER8_CPU
+ bool "POWER8"
+ depends on PPC_BOOK3S_64
+ select ARCH_HAS_FAST_MULTIPLIER
+ select PPC_64S_HASH_MMU
+ select PPC_HAS_LBARX_LHARX
+
+config POWER9_CPU
+ bool "POWER9"
+ depends on PPC_BOOK3S_64
+ select ARCH_HAS_FAST_MULTIPLIER
+ select PPC_HAS_LBARX_LHARX
+
+config POWER10_CPU
+ bool "POWER10"
+ depends on PPC_BOOK3S_64
+ select ARCH_HAS_FAST_MULTIPLIER
+
+config E5500_CPU
+ bool "Freescale e5500"
+ depends on PPC64 && PPC_E500
+
+config E6500_CPU
+ bool "Freescale e6500"
+ depends on PPC64 && PPC_E500
+ select PPC_HAS_LBARX_LHARX
+
+config 405_CPU
+ bool "40x family"
+ depends on 40x
+
+config 440_CPU
+ bool "440 (44x family)"
+ depends on 44x
+
+config 464_CPU
+ bool "464 (44x family)"
+ depends on 44x
+
+config 476_CPU
+ bool "476 (47x family)"
+ depends on PPC_47x
+
+config 860_CPU
+ bool "8xx family"
+ depends on PPC_8xx
+
+config E300C2_CPU
+ bool "e300c2 (832x)"
+ depends on PPC_BOOK3S_32
+
+config E300C3_CPU
+ bool "e300c3 (831x)"
+ depends on PPC_BOOK3S_32
+
+config G4_CPU
+ bool "G4 (74xx)"
+ depends on PPC_BOOK3S_32
+ select ALTIVEC
+
+config E500_CPU
+ bool "e500 (8540)"
+ depends on PPC_85xx && !PPC_E500MC
+
+config E500MC_CPU
+ bool "e500mc"
+ depends on PPC_85xx && PPC_E500MC
+
+config TOOLCHAIN_DEFAULT_CPU
+ bool "Rely on the toolchain's implicit default CPU"
+ depends on PPC32
+
+endchoice
+
+config TARGET_CPU_BOOL
+ bool
+ default !GENERIC_CPU && !TOOLCHAIN_DEFAULT_CPU
+
+config TARGET_CPU
+ string
+ depends on TARGET_CPU_BOOL
+ default "cell" if CELL_CPU
+ default "970" if PPC_970_CPU
+ default "power6" if POWER6_CPU
+ default "power7" if POWER7_CPU
+ default "power8" if POWER8_CPU
+ default "power9" if POWER9_CPU
+ default "power10" if POWER10_CPU
+ default "405" if 405_CPU
+ default "440" if 440_CPU
+ default "464" if 464_CPU
+ default "476" if 476_CPU
+ default "860" if 860_CPU
+ default "e300c2" if E300C2_CPU
+ default "e300c3" if E300C3_CPU
+ default "G4" if G4_CPU
+ default "8540" if E500_CPU
+ default "e500mc" if E500MC_CPU
+ default "powerpc" if POWERPC_CPU
+
+config PPC_BOOK3S
+ def_bool y
+ depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
+
+config PPC_E500
+ select FSL_EMB_PERFMON
+ bool
+ select ARCH_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
+ select PPC_SMP_MUXED_IPI
+ select PPC_DOORBELL
+ select PPC_KUEP
+
+config PPC_E500MC
+ bool "e500mc Support"
+ select PPC_FPU
+ select COMMON_CLK
+ depends on PPC_E500
+ help
+ This must be enabled for running on e500mc (and derivatives
+ such as e5500/e6500), and must be disabled for running on
+ e500v1 or e500v2.
+
+config PPC_FPU_REGS
+ bool
+
+config PPC_FPU
+ bool "Support for Floating Point Unit (FPU)" if PPC_MPC832x
+ default y if PPC64
+ select PPC_FPU_REGS
+ help
+ This must be enabled to support the Floating Point Unit
+ Most 6xx have an FPU but e300c2 core (mpc832x) don't have
+ an FPU, so when building an embedded kernel for that target
+ you can disable FPU support.
+
+ If unsure say Y.
+
+config FSL_EMB_PERFMON
+ bool "Freescale Embedded Perfmon"
+ depends on PPC_E500 || PPC_83xx
+ help
+ This is the Performance Monitor support found on the e500 core
+ and some e300 cores (c3 and c4). Select this only if your
+ core supports the Embedded Performance Monitor APU
+
+config FSL_EMB_PERF_EVENT
+ bool
+ depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
+ default y
+
+config FSL_EMB_PERF_EVENT_E500
+ bool
+ depends on FSL_EMB_PERF_EVENT && PPC_E500
+ default y
+
+config 4xx
+ bool
+ depends on 40x || 44x
+ default y
+
+config BOOKE
+ bool
+ depends on PPC_E500 || 44x
+ default y
+
+config BOOKE_OR_40x
+ bool
+ depends on BOOKE || 40x
+ default y
+
+config PTE_64BIT
+ bool
+ depends on 44x || PPC_E500 || PPC_86xx
+ default y if PHYS_64BIT
+
+config PHYS_64BIT
+ bool 'Large physical address support' if PPC_E500 || PPC_86xx
+ depends on (44x || PPC_E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
+ select PHYS_ADDR_T_64BIT
+ help
+ This option enables kernel support for larger than 32-bit physical
+ addresses. This feature may not be available on all cores.
+
+ If you have more than 3.5GB of RAM or so, you also need to enable
+ SWIOTLB under Kernel Options for this to work. The actual number
+ is platform-dependent.
+
+ If in doubt, say N here.
+
+config ALTIVEC
+ bool "AltiVec Support"
+ depends on PPC_BOOK3S || (PPC_E500MC && PPC64 && !E5500_CPU)
+ select PPC_FPU
+ help
+ This option enables kernel support for the Altivec extensions to the
+ PowerPC processor. The kernel currently supports saving and restoring
+ altivec registers, and turning on the 'altivec enable' bit so user
+ processes can execute altivec instructions.
+
+ This option is only usefully if you have a processor that supports
+ altivec (G4, otherwise known as 74xx series), but does not have
+ any affect on a non-altivec cpu (it does, however add code to the
+ kernel).
+
+ If in doubt, say Y here.
+
+config VSX
+ bool "VSX Support"
+ depends on PPC_BOOK3S_64 && ALTIVEC && PPC_FPU
+ help
+
+ This option enables kernel support for the Vector Scaler extensions
+ to the PowerPC processor. The kernel currently supports saving and
+ restoring VSX registers, and turning on the 'VSX enable' bit so user
+ processes can execute VSX instructions.
+
+ This option is only useful if you have a processor that supports
+ VSX (P7 and above), but does not have any affect on a non-VSX
+ CPUs (it does, however add code to the kernel).
+
+ If in doubt, say Y here.
+
+config SPE_POSSIBLE
+ def_bool y
+ depends on PPC_E500 && !PPC_E500MC
+
+config SPE
+ bool "SPE Support"
+ depends on SPE_POSSIBLE
+ default y
+ help
+ This option enables kernel support for the Signal Processing
+ Extensions (SPE) to the PowerPC processor. The kernel currently
+ supports saving and restoring SPE registers, and turning on the
+ 'spe enable' bit so user processes can execute SPE instructions.
+
+ This option is only useful if you have a processor that supports
+ SPE (e500, otherwise known as 85xx series), but does not have any
+ effect on a non-spe cpu (it does, however add code to the kernel).
+
+ If in doubt, say Y here.
+
+config PPC_64S_HASH_MMU
+ bool "Hash MMU Support"
+ depends on PPC_BOOK3S_64
+ default y
+ help
+ Enable support for the Power ISA Hash style MMU. This is implemented
+ by all IBM Power and other 64-bit Book3S CPUs before ISA v3.0. The
+ OpenPOWER ISA does not mandate the hash MMU and some CPUs do not
+ implement it (e.g., Microwatt).
+
+ Note that POWER9 PowerVM platforms only support the hash
+ MMU. From POWER10 radix is also supported by PowerVM.
+
+ If you're unsure, say Y.
+
+config PPC_RADIX_MMU
+ bool "Radix MMU Support"
+ depends on PPC_BOOK3S_64
+ select ARCH_HAS_GIGANTIC_PAGE
+ default y
+ help
+ Enable support for the Power ISA 3.0 Radix style MMU. Currently this
+ is only implemented by IBM Power9 CPUs, if you don't have one of them
+ you can probably disable this.
+
+config PPC_RADIX_MMU_DEFAULT
+ bool "Default to using the Radix MMU when possible" if PPC_64S_HASH_MMU
+ depends on PPC_BOOK3S_64
+ depends on PPC_RADIX_MMU
+ default y
+ help
+ When the hardware supports the Radix MMU, default to using it unless
+ "disable_radix[=yes]" is specified on the kernel command line.
+
+ If this option is disabled, the Hash MMU will be used by default,
+ unless "disable_radix=no" is specified on the kernel command line.
+
+ If you're unsure, say Y.
+
+config PPC_KUEP
+ bool "Kernel Userspace Execution Prevention" if !40x
+ default y if !40x
+ help
+ Enable support for Kernel Userspace Execution Prevention (KUEP)
+
+ If you're unsure, say Y.
+
+config PPC_KUAP
+ bool "Kernel Userspace Access Protection"
+ default y
+ help
+ Enable support for Kernel Userspace Access Protection (KUAP)
+
+ If you're unsure, say Y.
+
+config PPC_KUAP_DEBUG
+ bool "Extra debugging for Kernel Userspace Access Protection"
+ depends on PPC_KUAP
+ help
+ Add extra debugging for Kernel Userspace Access Protection (KUAP)
+ If you're unsure, say N.
+
+config PPC_PKEY
+ def_bool y
+ depends on PPC_BOOK3S_64
+ depends on PPC_MEM_KEYS || PPC_KUAP || PPC_KUEP
+
+
+config PPC_MMU_NOHASH
+ def_bool y
+ depends on !PPC_BOOK3S
+
+config PPC_HAVE_PMU_SUPPORT
+ bool
+
+config PMU_SYSFS
+ bool "Create PMU SPRs sysfs file"
+ default n
+ help
+ This option enables sysfs file creation for PMU SPRs like MMCR* and PMC*.
+
+config PPC_PERF_CTRS
+ def_bool y
+ depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
+ help
+ This enables the powerpc-specific perf_event back-end.
+
+config FORCE_SMP
+ # Allow platforms to force SMP=y by selecting this
+ bool
+ select SMP
+
+config SMP
+ depends on PPC_BOOK3S || PPC_E500 || PPC_47x
+ select GENERIC_IRQ_MIGRATION
+ bool "Symmetric multi-processing support" if !FORCE_SMP
+ 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. Note that the kernel does not currently
+ support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
+ since they have inadequate hardware support for multiprocessor
+ operation.
+
+ If you say N here, the kernel will run on single and multiprocessor
+ machines, but will use only one CPU of a multiprocessor machine. If
+ you say Y here, the kernel will run on single-processor machines.
+ On a single-processor machine, the kernel will run faster if you say
+ N here.
+
+ If you don't know what to do here, say N.
+
+config NR_CPUS
+ int "Maximum number of CPUs (2-8192)" if SMP
+ range 2 8192 if SMP
+ default "1" if !SMP
+ default "32" if PPC64
+ default "4"
+
+config NOT_COHERENT_CACHE
+ bool
+ depends on 4xx || PPC_8xx || PPC_MPC512x || \
+ GAMECUBE_COMMON || AMIGAONE
+ select ARCH_HAS_DMA_PREP_COHERENT
+ select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+ select ARCH_HAS_SYNC_DMA_FOR_CPU
+ select DMA_DIRECT_REMAP
+ default n if PPC_47x
+ default y
+
+config CHECK_CACHE_COHERENCY
+ bool
+
+config PPC_DOORBELL
+ bool
+
+endmenu
+
+config VDSO32
+ def_bool y
+ depends on PPC32 || COMPAT
+ help
+ This symbol controls whether we build the 32-bit VDSO. We obviously
+ want to do that if we're building a 32-bit kernel. If we're building
+ a 64-bit kernel then we only want a 32-bit VDSO if we're also enabling
+ COMPAT.
+
+choice
+ prompt "Endianness selection"
+ default CPU_BIG_ENDIAN
+ help
+ This option selects whether a big endian or little endian kernel will
+ be built.
+
+config CPU_BIG_ENDIAN
+ bool "Build big endian kernel"
+ help
+ Build a big endian kernel.
+
+ If unsure, select this option.
+
+config CPU_LITTLE_ENDIAN
+ bool "Build little endian kernel"
+ depends on PPC_BOOK3S_64
+ select PPC64_BOOT_WRAPPER
+ help
+ Build a little endian kernel.
+
+ Note that if cross compiling a little endian kernel,
+ CROSS_COMPILE must point to a toolchain capable of targeting
+ little endian powerpc.
+
+endchoice
+
+config PPC64_ELF_ABI_V1
+ def_bool PPC64 && (CPU_BIG_ENDIAN && !PPC64_BIG_ENDIAN_ELF_ABI_V2)
+
+config PPC64_ELF_ABI_V2
+ def_bool PPC64 && !PPC64_ELF_ABI_V1
+
+config PPC64_BOOT_WRAPPER
+ def_bool n
+ depends on CPU_LITTLE_ENDIAN