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5375871d43
Pull powerpc merge from Benjamin Herrenschmidt:
"Here's the powerpc batch for this merge window. It is going to be a
bit more nasty than usual as in touching things outside of
arch/powerpc mostly due to the big iSeriesectomy :-) We finally got
rid of the bugger (legacy iSeries support) which was a PITA to
maintain and that nobody really used anymore.
Here are some of the highlights:
- Legacy iSeries is gone. Thanks Stephen ! There's still some bits
and pieces remaining if you do a grep -ir series arch/powerpc but
they are harmless and will be removed in the next few weeks
hopefully.
- The 'fadump' functionality (Firmware Assisted Dump) replaces the
previous (equivalent) "pHyp assisted dump"... it's a rewrite of a
mechanism to get the hypervisor to do crash dumps on pSeries, the
new implementation hopefully being much more reliable. Thanks
Mahesh Salgaonkar.
- The "EEH" code (pSeries PCI error handling & recovery) got a big
spring cleaning, motivated by the need to be able to implement a
new backend for it on top of some new different type of firwmare.
The work isn't complete yet, but a good chunk of the cleanups is
there. Note that this adds a field to struct device_node which is
not very nice and which Grant objects to. I will have a patch soon
that moves that to a powerpc private data structure (hopefully
before rc1) and we'll improve things further later on (hopefully
getting rid of the need for that pointer completely). Thanks Gavin
Shan.
- I dug into our exception & interrupt handling code to improve the
way we do lazy interrupt handling (and make it work properly with
"edge" triggered interrupt sources), and while at it found & fixed
a wagon of issues in those areas, including adding support for page
fault retry & fatal signals on page faults.
- Your usual random batch of small fixes & updates, including a bunch
of new embedded boards, both Freescale and APM based ones, etc..."
I fixed up some conflicts with the generalized irq-domain changes from
Grant Likely, hopefully correctly.
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (141 commits)
powerpc/ps3: Do not adjust the wrapper load address
powerpc: Remove the rest of the legacy iSeries include files
powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces
init: Remove CONFIG_PPC_ISERIES
powerpc: Remove FW_FEATURE ISERIES from arch code
tty/hvc_vio: FW_FEATURE_ISERIES is no longer selectable
powerpc/spufs: Fix double unlocks
powerpc/5200: convert mpc5200 to use of_platform_populate()
powerpc/mpc5200: add options to mpc5200_defconfig
powerpc/mpc52xx: add a4m072 board support
powerpc/mpc5200: update mpc5200_defconfig to fit for charon board
Documentation/powerpc/mpc52xx.txt: Checkpatch cleanup
powerpc/44x: Add additional device support for APM821xx SoC and Bluestone board
powerpc/44x: Add support PCI-E for APM821xx SoC and Bluestone board
MAINTAINERS: Update PowerPC 4xx tree
powerpc/44x: The bug fixed support for APM821xx SoC and Bluestone board
powerpc: document the FSL MPIC message register binding
powerpc: add support for MPIC message register API
powerpc/fsl: Added aliased MSIIR register address to MSI node in dts
powerpc/85xx: mpc8548cds - add 36-bit dts
...
133 lines
4.0 KiB
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133 lines
4.0 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 HAVE_PCSPKR_PLATFORM
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select MPIC
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select OF_DYNAMIC
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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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select ZLIB_DEFLATE
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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 IO_EVENT_IRQ
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bool "IO Event Interrupt support"
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depends on PPC_PSERIES
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default y
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help
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Select this option, if you want to enable support for IO Event
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interrupts. IO event interrupt is a mechanism provided by RTAS
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to return information about hardware error and non-error events
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which may need OS attention. RTAS returns events for multiple
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event types and scopes. Device drivers can register their handlers
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to receive events.
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This option will only enable the IO event platform code. You
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will still need to enable or compile the actual drivers
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that use this infrastruture to handle IO event interrupts.
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Say Y if you are unsure.
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config LPARCFG
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bool "LPAR Configuration Data"
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depends on PPC_PSERIES
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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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config PSERIES_IDLE
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bool "Cpuidle driver for pSeries platforms"
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depends on CPU_IDLE
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depends on PPC_PSERIES
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default y
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help
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Select this option to enable processor idle state management
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through cpuidle subsystem.
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