0b05ac6e24
This is a significant rework of the XICS driver, too significant to conveniently break it up into a series of smaller patches to be honest. The driver is moved to a more generic location to allow new platforms to use it, and is broken up into separate ICP and ICS "backends". For now we have the native and "hypervisor" ICP backends and one common RTAS ICS backend. The driver supports one ICP backend instanciation, and many ICS ones, in order to accomodate future platforms with multiple possibly different interrupt "sources" mechanisms. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
103 lines
3.1 KiB
Plaintext
103 lines
3.1 KiB
Plaintext
config PPC_PSERIES
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depends on PPC64 && PPC_BOOK3S
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bool "IBM pSeries & new (POWER5-based) iSeries"
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select MPIC
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select PCI_MSI
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select PPC_XICS
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select PPC_ICP_NATIVE
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select PPC_ICP_HV
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select PPC_ICS_RTAS
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select PPC_I8259
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select PPC_RTAS
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select PPC_RTAS_DAEMON
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select RTAS_ERROR_LOGGING
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select PPC_UDBG_16550
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select PPC_NATIVE
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select PPC_PCI_CHOICE if EXPERT
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default y
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config PPC_SPLPAR
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depends on PPC_PSERIES
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bool "Support for shared-processor logical partitions"
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default n
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help
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Enabling this option will make the kernel run more efficiently
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on logically-partitioned pSeries systems which use shared
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processors, that is, which share physical processors between
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two or more partitions.
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config EEH
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bool "PCI Extended Error Handling (EEH)" if EXPERT
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depends on PPC_PSERIES && PCI
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default y if !EXPERT
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config PSERIES_MSI
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bool
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depends on PCI_MSI && EEH
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default y
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config PSERIES_ENERGY
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tristate "pSeries energy management capabilities driver"
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depends on PPC_PSERIES
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default y
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help
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Provides interface to platform energy management capabilities
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on supported PSERIES platforms.
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Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list
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and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint
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config SCANLOG
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tristate "Scanlog dump interface"
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depends on RTAS_PROC && PPC_PSERIES
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config LPARCFG
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bool "LPAR Configuration Data"
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depends on PPC_PSERIES || PPC_ISERIES
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help
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Provide system capacity information via human readable
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<key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
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config PPC_PSERIES_DEBUG
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depends on PPC_PSERIES && PPC_EARLY_DEBUG
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bool "Enable extra debug logging in platforms/pseries"
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help
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Say Y here if you want the pseries core to produce a bunch of
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debug messages to the system log. Select this if you are having a
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problem with the pseries core and want to see more of what is
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going on. This does not enable debugging in lpar.c, which must
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be manually done due to its verbosity.
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default y
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config PPC_SMLPAR
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bool "Support for shared-memory logical partitions"
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depends on PPC_PSERIES
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select LPARCFG
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default n
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help
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Select this option to enable shared memory partition support.
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With this option a system running in an LPAR can be given more
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memory than physically available and will allow firmware to
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balance memory across many LPARs.
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config CMM
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tristate "Collaborative memory management"
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depends on PPC_SMLPAR
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default y
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help
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Select this option, if you want to enable the kernel interface
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to reduce the memory size of the system. This is accomplished
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by allocating pages of memory and put them "on hold". This only
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makes sense for a system running in an LPAR where the unused pages
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will be reused for other LPARs. The interface allows firmware to
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balance memory across many LPARs.
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config DTL
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bool "Dispatch Trace Log"
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depends on PPC_SPLPAR && DEBUG_FS
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help
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SPLPAR machines can log hypervisor preempt & dispatch events to a
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kernel buffer. Saying Y here will enable logging these events,
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which are accessible through a debugfs file.
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Say N if you are unsure.
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