forked from Minki/linux
cdd6c482c9
Bye-bye Performance Counters, welcome Performance Events!
In the past few months the perfcounters subsystem has grown out its
initial role of counting hardware events, and has become (and is
becoming) a much broader generic event enumeration, reporting, logging,
monitoring, analysis facility.
Naming its core object 'perf_counter' and naming the subsystem
'perfcounters' has become more and more of a misnomer. With pending
code like hw-breakpoints support the 'counter' name is less and
less appropriate.
All in one, we've decided to rename the subsystem to 'performance
events' and to propagate this rename through all fields, variables
and API names. (in an ABI compatible fashion)
The word 'event' is also a bit shorter than 'counter' - which makes
it slightly more convenient to write/handle as well.
Thanks goes to Stephane Eranian who first observed this misnomer and
suggested a rename.
User-space tooling and ABI compatibility is not affected - this patch
should be function-invariant. (Also, defconfigs were not touched to
keep the size down.)
This patch has been generated via the following script:
FILES=$(find * -type f | grep -vE 'oprofile|[^K]config')
sed -i \
-e 's/PERF_EVENT_/PERF_RECORD_/g' \
-e 's/PERF_COUNTER/PERF_EVENT/g' \
-e 's/perf_counter/perf_event/g' \
-e 's/nb_counters/nb_events/g' \
-e 's/swcounter/swevent/g' \
-e 's/tpcounter_event/tp_event/g' \
$FILES
for N in $(find . -name perf_counter.[ch]); do
M=$(echo $N | sed 's/perf_counter/perf_event/g')
mv $N $M
done
FILES=$(find . -name perf_event.*)
sed -i \
-e 's/COUNTER_MASK/REG_MASK/g' \
-e 's/COUNTER/EVENT/g' \
-e 's/\<event\>/event_id/g' \
-e 's/counter/event/g' \
-e 's/Counter/Event/g' \
$FILES
... to keep it as correct as possible. This script can also be
used by anyone who has pending perfcounters patches - it converts
a Linux kernel tree over to the new naming. We tried to time this
change to the point in time where the amount of pending patches
is the smallest: the end of the merge window.
Namespace clashes were fixed up in a preparatory patch - and some
stylistic fallout will be fixed up in a subsequent patch.
( NOTE: 'counters' are still the proper terminology when we deal
with hardware registers - and these sed scripts are a bit
over-eager in renaming them. I've undone some of that, but
in case there's something left where 'counter' would be
better than 'event' we can undo that on an individual basis
instead of touching an otherwise nicely automated patch. )
Suggested-by: Stephane Eranian <eranian@google.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Mackerras <paulus@samba.org>
Reviewed-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <linux-arch@vger.kernel.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
553 lines
13 KiB
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553 lines
13 KiB
Plaintext
# For a description of the syntax of this configuration file,
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# see Documentation/kbuild/kconfig-language.txt.
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#
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mainmenu "Linux/SPARC Kernel Configuration"
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config 64BIT
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bool "64-bit kernel" if ARCH = "sparc"
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default ARCH = "sparc64"
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help
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SPARC is a family of RISC microprocessors designed and marketed by
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Sun Microsystems, incorporated. They are very widely found in Sun
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workstations and clones.
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Say yes to build a 64-bit kernel - formerly known as sparc64
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Say no to build a 32-bit kernel - formerly known as sparc
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config SPARC
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bool
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default y
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select HAVE_IDE
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select HAVE_OPROFILE
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select HAVE_ARCH_KGDB if !SMP || SPARC64
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select HAVE_ARCH_TRACEHOOK
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select ARCH_WANT_OPTIONAL_GPIOLIB
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select RTC_CLASS
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select RTC_DRV_M48T59
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select HAVE_PERF_EVENTS
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select HAVE_DMA_ATTRS
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select HAVE_DMA_API_DEBUG
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config SPARC32
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def_bool !64BIT
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config SPARC64
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def_bool 64BIT
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select ARCH_SUPPORTS_MSI
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select HAVE_FUNCTION_TRACER
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select HAVE_KRETPROBES
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select HAVE_KPROBES
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select HAVE_LMB
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select HAVE_SYSCALL_WRAPPERS
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select HAVE_DYNAMIC_FTRACE
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select HAVE_FTRACE_MCOUNT_RECORD
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select USE_GENERIC_SMP_HELPERS if SMP
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select RTC_DRV_CMOS
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select RTC_DRV_BQ4802
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select RTC_DRV_SUN4V
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select RTC_DRV_STARFIRE
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select HAVE_PERF_EVENTS
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config ARCH_DEFCONFIG
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string
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default "arch/sparc/configs/sparc32_defconfig" if SPARC32
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default "arch/sparc/configs/sparc64_defconfig" if SPARC64
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# CONFIG_BITS can be used at source level to get 32/64 bits
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config BITS
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int
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default 32 if SPARC32
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default 64 if SPARC64
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config GENERIC_TIME
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bool
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default y if SPARC64
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config GENERIC_CMOS_UPDATE
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bool
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default y if SPARC64
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config GENERIC_CLOCKEVENTS
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bool
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default y if SPARC64
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config IOMMU_HELPER
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bool
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default y if SPARC64
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config QUICKLIST
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bool
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default y if SPARC64
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config STACKTRACE_SUPPORT
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bool
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default y if SPARC64
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config LOCKDEP_SUPPORT
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bool
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default y if SPARC64
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config HAVE_LATENCYTOP_SUPPORT
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bool
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default y if SPARC64
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config AUDIT_ARCH
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bool
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default y
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config HAVE_SETUP_PER_CPU_AREA
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def_bool y if SPARC64
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config NEED_PER_CPU_EMBED_FIRST_CHUNK
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def_bool y if SPARC64
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config GENERIC_HARDIRQS_NO__DO_IRQ
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bool
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def_bool y if SPARC64
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config MMU
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bool
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default y
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config HIGHMEM
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bool
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default y if SPARC32
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config ZONE_DMA
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bool
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default y if SPARC32
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config GENERIC_ISA_DMA
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bool
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default y if SPARC32
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config GENERIC_GPIO
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bool
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help
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Generic GPIO API support
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config ARCH_NO_VIRT_TO_BUS
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def_bool y
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config OF
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def_bool y
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config ARCH_SUPPORTS_DEBUG_PAGEALLOC
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def_bool y if SPARC64
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source "init/Kconfig"
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source "kernel/Kconfig.freezer"
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menu "Processor type and features"
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config SMP
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bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
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---help---
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This enables support for systems with more than one CPU. If you have
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a system with only one CPU, say N. If you have a system with more
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than one CPU, say Y.
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If you say N here, the kernel will run on single and multiprocessor
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machines, but will use only one CPU of a multiprocessor machine. If
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you say Y here, the kernel will run on many, but not all,
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singleprocessor machines. On a singleprocessor machine, the kernel
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will run faster if you say N here.
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People using multiprocessor machines who say Y here should also say
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Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
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Management" code will be disabled if you say Y here.
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See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
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available at <http://www.tldp.org/docs.html#howto>.
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If you don't know what to do here, say N.
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config NR_CPUS
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int "Maximum number of CPUs"
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depends on SMP
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range 2 32 if SPARC32
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range 2 1024 if SPARC64
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default 32 if SPARC32
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default 64 if SPARC64
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source kernel/Kconfig.hz
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config RWSEM_GENERIC_SPINLOCK
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bool
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default y if SPARC32
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config RWSEM_XCHGADD_ALGORITHM
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bool
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default y if SPARC64
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config GENERIC_FIND_NEXT_BIT
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bool
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default y
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config GENERIC_HWEIGHT
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bool
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default y if !ULTRA_HAS_POPULATION_COUNT
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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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default y
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config EMULATED_CMPXCHG
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bool
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default y if SPARC32
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help
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Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
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is emulated, and therefore it is not completely atomic.
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# Makefile helpers
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config SPARC32_SMP
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bool
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default y
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depends on SPARC32 && SMP
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config SPARC64_SMP
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bool
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default y
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depends on SPARC64 && SMP
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choice
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prompt "Kernel page size" if SPARC64
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default SPARC64_PAGE_SIZE_8KB
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config SPARC64_PAGE_SIZE_8KB
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bool "8KB"
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help
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This lets you select the page size of the kernel.
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8KB and 64KB work quite well, since SPARC ELF sections
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provide for up to 64KB alignment.
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If you don't know what to do, choose 8KB.
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config SPARC64_PAGE_SIZE_64KB
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bool "64KB"
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endchoice
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config SECCOMP
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bool "Enable seccomp to safely compute untrusted bytecode"
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depends on SPARC64 && PROC_FS
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default y
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help
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This kernel feature is useful for number crunching applications
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that may need to compute untrusted bytecode during their
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execution. By using pipes or other transports made available to
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the process as file descriptors supporting the read/write
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syscalls, it's possible to isolate those applications in
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their own address space using seccomp. Once seccomp is
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enabled via /proc/<pid>/seccomp, it cannot be disabled
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and the task is only allowed to execute a few safe syscalls
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defined by each seccomp mode.
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If unsure, say Y. Only embedded should say N here.
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config HOTPLUG_CPU
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bool "Support for hot-pluggable CPUs"
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depends on SPARC64 && SMP
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select HOTPLUG
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help
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Say Y here to experiment with turning CPUs off and on. CPUs
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can be controlled through /sys/devices/system/cpu/cpu#.
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Say N if you want to disable CPU hotplug.
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config GENERIC_HARDIRQS
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bool
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default y if SPARC64
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source "kernel/time/Kconfig"
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if SPARC64
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source "drivers/cpufreq/Kconfig"
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config US3_FREQ
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tristate "UltraSPARC-III CPU Frequency driver"
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depends on CPU_FREQ
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select CPU_FREQ_TABLE
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help
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This adds the CPUFreq driver for UltraSPARC-III processors.
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For details, take a look at <file:Documentation/cpu-freq>.
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If in doubt, say N.
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config US2E_FREQ
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tristate "UltraSPARC-IIe CPU Frequency driver"
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depends on CPU_FREQ
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select CPU_FREQ_TABLE
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help
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This adds the CPUFreq driver for UltraSPARC-IIe processors.
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For details, take a look at <file:Documentation/cpu-freq>.
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If in doubt, say N.
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endif
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config US3_MC
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tristate "UltraSPARC-III Memory Controller driver"
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depends on SPARC64
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default y
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help
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This adds a driver for the UltraSPARC-III memory controller.
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Loading this driver allows exact mnemonic strings to be
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printed in the event of a memory error, so that the faulty DIMM
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on the motherboard can be matched to the error.
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If in doubt, say Y, as this information can be very useful.
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# Global things across all Sun machines.
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config GENERIC_LOCKBREAK
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bool
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default y
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depends on SPARC64 && SMP && PREEMPT
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choice
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prompt "SPARC64 Huge TLB Page Size"
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depends on SPARC64 && HUGETLB_PAGE
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default HUGETLB_PAGE_SIZE_4MB
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config HUGETLB_PAGE_SIZE_4MB
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bool "4MB"
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config HUGETLB_PAGE_SIZE_512K
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bool "512K"
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config HUGETLB_PAGE_SIZE_64K
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depends on !SPARC64_PAGE_SIZE_64KB
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bool "64K"
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endchoice
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config NUMA
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bool "NUMA support"
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depends on SPARC64 && SMP
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config NODES_SHIFT
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int
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default "4"
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depends on NEED_MULTIPLE_NODES
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# Some NUMA nodes have memory ranges that span
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# other nodes. Even though a pfn is valid and
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# between a node's start and end pfns, it may not
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# reside on that node. See memmap_init_zone()
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# for details.
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config NODES_SPAN_OTHER_NODES
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def_bool y
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depends on NEED_MULTIPLE_NODES
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config ARCH_POPULATES_NODE_MAP
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def_bool y if SPARC64
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config ARCH_SELECT_MEMORY_MODEL
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def_bool y if SPARC64
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config ARCH_SPARSEMEM_ENABLE
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def_bool y if SPARC64
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select SPARSEMEM_VMEMMAP_ENABLE
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config ARCH_SPARSEMEM_DEFAULT
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def_bool y if SPARC64
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source "mm/Kconfig"
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config SCHED_SMT
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bool "SMT (Hyperthreading) scheduler support"
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depends on SPARC64 && SMP
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default y
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help
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SMT scheduler support improves the CPU scheduler's decision making
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when dealing with SPARC cpus at a cost of slightly increased overhead
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in some places. If unsure say N here.
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config SCHED_MC
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bool "Multi-core scheduler support"
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depends on SPARC64 && SMP
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default y
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help
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Multi-core scheduler support improves the CPU scheduler's decision
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making when dealing with multi-core CPU chips at a cost of slightly
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increased overhead in some places. If unsure say N here.
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if SPARC64
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source "kernel/Kconfig.preempt"
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endif
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config CMDLINE_BOOL
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bool "Default bootloader kernel arguments"
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depends on SPARC64
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config CMDLINE
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string "Initial kernel command string"
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depends on CMDLINE_BOOL
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default "console=ttyS0,9600 root=/dev/sda1"
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help
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Say Y here if you want to be able to pass default arguments to
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the kernel. This will be overridden by the bootloader, if you
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use one (such as SILO). This is most useful if you want to boot
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a kernel from TFTP, and want default options to be available
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with having them passed on the command line.
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NOTE: This option WILL override the PROM bootargs setting!
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config SUN_PM
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bool
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default y if SPARC32
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help
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Enable power management and CPU standby features on supported
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SPARC platforms.
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config SPARC_LED
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tristate "Sun4m LED driver"
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depends on SPARC32
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help
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This driver toggles the front-panel LED on sun4m systems
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in a user-specifiable manner. Its state can be probed
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by reading /proc/led and its blinking mode can be changed
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via writes to /proc/led
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config SERIAL_CONSOLE
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bool
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depends on SPARC32
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default y
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---help---
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If you say Y here, it will be possible to use a serial port as the
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system console (the system console is the device which receives all
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kernel messages and warnings and which allows logins in single user
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mode). This could be useful if some terminal or printer is connected
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to that serial port.
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Even if you say Y here, the currently visible virtual console
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(/dev/tty0) will still be used as the system console by default, but
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you can alter that using a kernel command line option such as
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"console=ttyS1". (Try "man bootparam" or see the documentation of
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your boot loader (silo) about how to pass options to the kernel at
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boot time.)
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If you don't have a graphics card installed and you say Y here, the
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kernel will automatically use the first serial line, /dev/ttyS0, as
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system console.
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If unsure, say N.
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config SPARC_LEON
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bool "Sparc Leon processor family"
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depends on SPARC32
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---help---
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If you say Y here if you are running on a SPARC-LEON processor.
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The LEON processor is a synthesizable VHDL model of the
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SPARC-v8 standard. LEON is part of the GRLIB collection of
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IP cores that are distributed under GPL. GRLIB can be downloaded
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from www.gaisler.com. You can download a sparc-linux cross-compilation
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toolchain at www.gaisler.com.
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endmenu
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menu "Bus options (PCI etc.)"
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config SBUS
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bool
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default y
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config SBUSCHAR
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bool
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default y
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config SUN_LDOMS
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bool "Sun Logical Domains support"
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depends on SPARC64
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help
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Say Y here is you want to support virtual devices via
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Logical Domains.
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config PCI
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bool "Support for PCI and PS/2 keyboard/mouse"
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help
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Find out whether your system includes a PCI bus. PCI is the name of
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a bus system, i.e. the way the CPU talks to the other stuff inside
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your box. If you say Y here, the kernel will include drivers and
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infrastructure code to support PCI bus devices.
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CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
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CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
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All of these platforms are extremely obscure, so say N if unsure.
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config PCI_DOMAINS
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def_bool PCI if SPARC64
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config PCI_SYSCALL
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def_bool PCI
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source "drivers/pci/Kconfig"
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source "drivers/pcmcia/Kconfig"
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config SUN_OPENPROMFS
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tristate "Openprom tree appears in /proc/openprom"
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help
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If you say Y, the OpenPROM device tree will be available as a
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virtual file system, which you can mount to /proc/openprom by "mount
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-t openpromfs none /proc/openprom".
|
|
|
|
To compile the /proc/openprom support as a module, choose M here: the
|
|
module will be called openpromfs.
|
|
|
|
Only choose N if you know in advance that you will not need to modify
|
|
OpenPROM settings on the running system.
|
|
|
|
# Makefile helpers
|
|
config SPARC32_PCI
|
|
bool
|
|
default y
|
|
depends on SPARC32 && PCI
|
|
|
|
config SPARC64_PCI
|
|
bool
|
|
default y
|
|
depends on SPARC64 && PCI
|
|
|
|
endmenu
|
|
|
|
menu "Executable file formats"
|
|
|
|
source "fs/Kconfig.binfmt"
|
|
|
|
config COMPAT
|
|
bool
|
|
depends on SPARC64
|
|
default y
|
|
select COMPAT_BINFMT_ELF
|
|
|
|
config SYSVIPC_COMPAT
|
|
bool
|
|
depends on COMPAT && SYSVIPC
|
|
default y
|
|
|
|
endmenu
|
|
|
|
source "net/Kconfig"
|
|
|
|
source "drivers/Kconfig"
|
|
|
|
source "drivers/sbus/char/Kconfig"
|
|
|
|
source "fs/Kconfig"
|
|
|
|
source "arch/sparc/Kconfig.debug"
|
|
|
|
source "security/Kconfig"
|
|
|
|
source "crypto/Kconfig"
|
|
|
|
source "lib/Kconfig"
|