948cf67c47
Wakeup comes from the system reset handler with a potential loss of the non-hypervisor CPU state. We save the non-volatile state on the stack and a pointer to it in the PACA, which the system reset handler uses to restore things Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
355 lines
9.4 KiB
Text
355 lines
9.4 KiB
Text
menu "Platform support"
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source "arch/powerpc/platforms/pseries/Kconfig"
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source "arch/powerpc/platforms/iseries/Kconfig"
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source "arch/powerpc/platforms/chrp/Kconfig"
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source "arch/powerpc/platforms/512x/Kconfig"
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source "arch/powerpc/platforms/52xx/Kconfig"
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source "arch/powerpc/platforms/powermac/Kconfig"
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source "arch/powerpc/platforms/prep/Kconfig"
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source "arch/powerpc/platforms/maple/Kconfig"
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source "arch/powerpc/platforms/pasemi/Kconfig"
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source "arch/powerpc/platforms/ps3/Kconfig"
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source "arch/powerpc/platforms/cell/Kconfig"
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source "arch/powerpc/platforms/8xx/Kconfig"
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source "arch/powerpc/platforms/82xx/Kconfig"
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source "arch/powerpc/platforms/83xx/Kconfig"
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source "arch/powerpc/platforms/85xx/Kconfig"
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source "arch/powerpc/platforms/86xx/Kconfig"
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source "arch/powerpc/platforms/embedded6xx/Kconfig"
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source "arch/powerpc/platforms/44x/Kconfig"
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source "arch/powerpc/platforms/40x/Kconfig"
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source "arch/powerpc/platforms/amigaone/Kconfig"
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config KVM_GUEST
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bool "KVM Guest support"
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default y
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---help---
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This option enables various optimizations for running under the KVM
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hypervisor. Overhead for the kernel when not running inside KVM should
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be minimal.
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In case of doubt, say Y
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config PPC_NATIVE
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bool
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depends on 6xx || PPC64
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help
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Support for running natively on the hardware, i.e. without
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a hypervisor. This option is not user-selectable but should
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be selected by all platforms that need it.
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config PPC_OF_BOOT_TRAMPOLINE
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bool "Support booting from Open Firmware or yaboot"
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depends on 6xx || PPC64
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default y
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help
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Support from booting from Open Firmware or yaboot using an
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Open Firmware client interface. This enables the kernel to
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communicate with open firmware to retrieve system information
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such as the device tree.
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In case of doubt, say Y
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config UDBG_RTAS_CONSOLE
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bool "RTAS based debug console"
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depends on PPC_RTAS
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default n
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config PPC_UDBG_BEAT
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bool "BEAT based debug console"
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depends on PPC_CELLEB
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default n
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config XICS
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depends on PPC_PSERIES
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bool
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default y
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config IPIC
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bool
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default n
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config MPIC
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bool
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default n
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config MPIC_WEIRD
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bool
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default n
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config PPC_I8259
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bool
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default n
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config U3_DART
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bool
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depends on PPC64
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default n
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config PPC_RTAS
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bool
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default n
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config RTAS_ERROR_LOGGING
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bool
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depends on PPC_RTAS
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default n
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config PPC_RTAS_DAEMON
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bool
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depends on PPC_RTAS
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default n
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config RTAS_PROC
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bool "Proc interface to RTAS"
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depends on PPC_RTAS
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default y
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config RTAS_FLASH
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tristate "Firmware flash interface"
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depends on PPC64 && RTAS_PROC
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config MMIO_NVRAM
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bool
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default n
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config MPIC_U3_HT_IRQS
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bool
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default n
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config MPIC_BROKEN_REGREAD
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bool
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depends on MPIC
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help
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This option enables a MPIC driver workaround for some chips
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that have a bug that causes some interrupt source information
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to not read back properly. It is safe to use on other chips as
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well, but enabling it uses about 8KB of memory to keep copies
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of the register contents in software.
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config IBMVIO
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depends on PPC_PSERIES || PPC_ISERIES
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bool
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default y
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config IBMEBUS
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depends on PPC_PSERIES
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bool "Support for GX bus based adapters"
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help
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Bus device driver for GX bus based adapters.
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config PPC_MPC106
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bool
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default n
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config PPC_970_NAP
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bool
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default n
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config PPC_P7_NAP
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bool
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default n
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config PPC_INDIRECT_IO
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bool
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select GENERIC_IOMAP
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default n
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config GENERIC_IOMAP
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bool
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default n
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source "drivers/cpufreq/Kconfig"
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menu "CPU Frequency drivers"
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depends on CPU_FREQ
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config CPU_FREQ_PMAC
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bool "Support for Apple PowerBooks"
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depends on ADB_PMU && PPC32
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select CPU_FREQ_TABLE
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help
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This adds support for frequency switching on Apple PowerBooks,
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this currently includes some models of iBook & Titanium
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PowerBook.
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config CPU_FREQ_PMAC64
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bool "Support for some Apple G5s"
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depends on PPC_PMAC && PPC64
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select CPU_FREQ_TABLE
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help
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This adds support for frequency switching on Apple iMac G5,
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and some of the more recent desktop G5 machines as well.
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config PPC_PASEMI_CPUFREQ
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bool "Support for PA Semi PWRficient"
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depends on PPC_PASEMI
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default y
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select CPU_FREQ_TABLE
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help
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This adds the support for frequency switching on PA Semi
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PWRficient processors.
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endmenu
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config PPC601_SYNC_FIX
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bool "Workarounds for PPC601 bugs"
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depends on 6xx && (PPC_PREP || PPC_PMAC)
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help
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Some versions of the PPC601 (the first PowerPC chip) have bugs which
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mean that extra synchronization instructions are required near
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certain instructions, typically those that make major changes to the
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CPU state. These extra instructions reduce performance slightly.
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If you say N here, these extra instructions will not be included,
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resulting in a kernel which will run faster but may not run at all
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on some systems with the PPC601 chip.
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If in doubt, say Y here.
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config TAU
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bool "On-chip CPU temperature sensor support"
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depends on 6xx
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help
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G3 and G4 processors have an on-chip temperature sensor called the
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'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
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temperature within 2-4 degrees Celsius. This option shows the current
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on-die temperature in /proc/cpuinfo if the cpu supports it.
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Unfortunately, on some chip revisions, this sensor is very inaccurate
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and in many cases, does not work at all, so don't assume the cpu
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temp is actually what /proc/cpuinfo says it is.
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config TAU_INT
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bool "Interrupt driven TAU driver (DANGEROUS)"
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depends on TAU
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---help---
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The TAU supports an interrupt driven mode which causes an interrupt
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whenever the temperature goes out of range. This is the fastest way
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to get notified the temp has exceeded a range. With this option off,
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a timer is used to re-check the temperature periodically.
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However, on some cpus it appears that the TAU interrupt hardware
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is buggy and can cause a situation which would lead unexplained hard
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lockups.
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Unless you are extending the TAU driver, or enjoy kernel/hardware
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debugging, leave this option off.
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config TAU_AVERAGE
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bool "Average high and low temp"
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depends on TAU
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---help---
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The TAU hardware can compare the temperature to an upper and lower
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bound. The default behavior is to show both the upper and lower
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bound in /proc/cpuinfo. If the range is large, the temperature is
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either changing a lot, or the TAU hardware is broken (likely on some
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G4's). If the range is small (around 4 degrees), the temperature is
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relatively stable. If you say Y here, a single temperature value,
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halfway between the upper and lower bounds, will be reported in
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/proc/cpuinfo.
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If in doubt, say N here.
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config QUICC_ENGINE
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bool "Freescale QUICC Engine (QE) Support"
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depends on FSL_SOC
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select PPC_LIB_RHEAP
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select CRC32
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help
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The QUICC Engine (QE) is a new generation of communications
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coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
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Selecting this option means that you wish to build a kernel
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for a machine with a QE coprocessor.
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config QE_GPIO
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bool "QE GPIO support"
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depends on QUICC_ENGINE
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select GENERIC_GPIO
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select ARCH_REQUIRE_GPIOLIB
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help
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Say Y here if you're going to use hardware that connects to the
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QE GPIOs.
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config CPM2
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bool "Enable support for the CPM2 (Communications Processor Module)"
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depends on (FSL_SOC_BOOKE && PPC32) || 8260
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select CPM
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select PPC_LIB_RHEAP
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select PPC_PCI_CHOICE
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select ARCH_REQUIRE_GPIOLIB
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select GENERIC_GPIO
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help
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The CPM2 (Communications Processor Module) is a coprocessor on
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embedded CPUs made by Freescale. Selecting this option means that
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you wish to build a kernel for a machine with a CPM2 coprocessor
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on it (826x, 827x, 8560).
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config AXON_RAM
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tristate "Axon DDR2 memory device driver"
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depends on PPC_IBM_CELL_BLADE && BLOCK
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default m
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help
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It registers one block device per Axon's DDR2 memory bank found
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on a system. Block devices are called axonram?, their major and
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minor numbers are available in /proc/devices, /proc/partitions or
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in /sys/block/axonram?/dev.
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config FSL_ULI1575
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bool
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default n
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select GENERIC_ISA_DMA
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help
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Supports for the ULI1575 PCIe south bridge that exists on some
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Freescale reference boards. The boards all use the ULI in pretty
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much the same way.
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config CPM
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bool
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select PPC_CLOCK
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config OF_RTC
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bool
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help
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Uses information from the OF or flattened device tree to instantiate
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platform devices for direct mapped RTC chips like the DS1742 or DS1743.
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source "arch/powerpc/sysdev/bestcomm/Kconfig"
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config MPC8xxx_GPIO
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bool "MPC512x/MPC8xxx GPIO support"
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depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
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FSL_SOC_BOOKE || PPC_86xx
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select GENERIC_GPIO
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select ARCH_REQUIRE_GPIOLIB
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help
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Say Y here if you're going to use hardware that connects to the
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MPC512x/831x/834x/837x/8572/8610 GPIOs.
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config SIMPLE_GPIO
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bool "Support for simple, memory-mapped GPIO controllers"
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depends on PPC
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select GENERIC_GPIO
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select ARCH_REQUIRE_GPIOLIB
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help
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Say Y here to support simple, memory-mapped GPIO controllers.
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These are usually BCSRs used to control board's switches, LEDs,
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chip-selects, Ethernet/USB PHY's power and various other small
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on-board peripherals.
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config MCU_MPC8349EMITX
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tristate "MPC8349E-mITX MCU driver"
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depends on I2C && PPC_83xx
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select GENERIC_GPIO
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select ARCH_REQUIRE_GPIOLIB
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help
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Say Y here to enable soft power-off functionality on the Freescale
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boards with the MPC8349E-mITX-compatible MCU chips. This driver will
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also register MCU GPIOs with the generic GPIO API, so you'll able
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to use MCU pins as GPIOs.
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config XILINX_PCI
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bool "Xilinx PCI host bridge support"
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depends on PCI && XILINX_VIRTEX
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endmenu
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