The powerpc numa code unconditionally onlines all nodes from 0 to the
highest node id found, regardless of whether cpus or memory are
present in the nodes. This wastes 8K per node and complicates some
cpu and memory hotplug situations, such as adding a resource that
doesn't map to one of the nodes discovered at boot.
Set nodes online as resources are scanned. Fall back to node 0 only
when we're sure this isn't a NUMA machine.
Instead of defaulting to node 0 for cases of hot-adding a resource
which doesn't belong to any initialized node, assign it to the first
online node.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Code to handle Power4's invalid node id (0xffff) is duplicated for cpu
and memory. Better to handle this case in one place --
of_node_to_nid. Overall behavior should be unchanged.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Since we effectively treat the domain ids given to us by firmare as
logical node ids, make this explicit (basically s/numa_domain/nid/).
No functional changes, only variable and function names are modified.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
map_cpu_to_node does not need to be inline, it is never called in a
hot path.
map_cpu_to_node, numa_setup_cpu, and find_cpu_node can be marked
__cpuinit, as they are never used after boot if CONFIG_HOTPLUG_CPU=n.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Add debug statement for map_cpu_to_node; it's useful for cpu hotplug.
Clarify debug statement about not finding the numa reference points
property.
Don't print a meaningless associativity depth (-1) on non-numa systems.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
At boot, the numa code is assigning boot_cpuid to node 0
unconditionally. Basically, numa_setup_cpu is being stupid about it,
but this is the minimal fix -- just call numa_setup_cpu(boot_cpuid)
later, after all nodes have been set online.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64-SGI] SN2-XP reduce kmalloc wrapper inlining
[IA64] MCA: remove obsolete ifdef
[IA64] MCA: update MCA comm field for user space tasks
[IA64] MCA: print messages in MCA handler
[IA64-SGI] - Eliminate SN pio_phys_xxx macros. Move to assembly
[IA64] use icc defined constant
[IA64] add __builtin_trap definition for icc build
[IA64] clean up asm/intel_intrin.h
[IA64] map ia64_hint definition to intel compiler intrinsic
[IA64] hooks to wait for mmio writes to drain when migrating processes
[IA64-SGI] driver bugfixes and hardware workarounds for CE1.0 asic
[IA64-SGI] Handle SC env. powerdown events
[IA64] Delete MCA/INIT sigdelayed code
[IA64-SGI] sem2mutex ioc4.c
[IA64] implement ia64 specific mutex primitives
[IA64] Fix UP build with BSP removal support.
[IA64] support for cpu0 removal
We need this to be zero initialised. Since this is an array, use kcalloc
rather than kzalloc or kmalloc.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Add Simtec Osiris to the default build, and enable the
USB-OHCI section by default.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Fix the build of arch/arm/mach-s3c2410/mach-osiris.c
and fix the warnings from sparse.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Lennert Buytenhek
Add GPIO interrupt support for the first 16 GPIO lines (port A
and B.)
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Add USB bus clock definition for 48MHz fed to OHCI and gadget cores
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Add set_rate methods for the extra clocks on the S3C2440
and add the camera UPLL clock source
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Add support for clk_set_rate and clk_round_rate to the
s3c2410 clock implementation
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Lennert Buytenhek
Move the uengine loader from arch/arm/mach-ixp2000 to arch/arm/common
so that ixp23xx can use it too.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Lennert Buytenhek
Add ep93xx defconfig.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Lennert Buytenhek
Add support for setting the direction of and getting/setting the
value of the 64 GPIO lines.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Lennert Buytenhek
This patch adds support for the Cirrus ep93xx series of CPUs. The
ep93xx is an ARM920T based CPU with two VICs, PL010 based UARTs,
IrDA, MaverickCrunch floating point coprocessor, between 24 and 64
GPIOs, ethernet, OHCI USB and, depending on the model, pcmcia, raster
engine, graphics accelerator, IDE controller and a bunch of other
stuff.
This patch adds the core ep93xx support code, and support for the
Glomation GESBC-9312-sx and the Technologic Systems TS-72xx SBCs.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Alessandro Zummo
ixp4xx_config_irq did not configure the gpio line
as an input.
As an added bonus, the irq2gpio array has been converted
from int to char.
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Peter Teichmann
Currently, if the kernels HZ value is greater than 100, delays with the udelay function are too short. This can cause trouble for instance with the zd1201 usb wlan driver.
This patch suggests a solution that keeps the overhead small and maintains (hopefully) sufficient resolution.
Signed-off-by: Peter Teichmann
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Deepak Saxena
This patch adds support for Intel's IXDP28x5 platform. This
is just and IXDP2801 with a new CPU rev but the bootloader
has been updated to reflect a new machine ID so we just build
support for it by default when we build IXDP2801.
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Add enable and set_parent calls for the dclk
and clkout clocks.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Add clk_set_parent() call to clock code
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Move the UPLL clock registration to the central
clock file, and add an enable method
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Add selection for timer code for the Simtec Osiris
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Ben Dooks
Support for Simtec IM2440D20 CPU modules (Osiris)
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Nicolas Pitre
This field is redundent since it must be equal to PHYS_OFFSET anyway.
There is no reference to it anymore so remove it at last.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Some SoCs have multiple VIC devices. Adapt the generic vic code
to allow multiple implementations to be handled.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
In all current use cases, "chipdata" is used to store an iomem address.
Mark it with __iomem, and rename it to 'base'. Leave the accessor macros
alone.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Allow the individual coprocessor handlers to decide when to enable
interrupts, rather than unconditionally enabling them.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
asm/hardware.h is not required for the majority of processor support
files, ioremap support, mm initialisation, acorn IO support, nor
the debug code (which picks up its machine specific includes via
debug-macros.S)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Unfortunately, OMAP platforms without the 32K timer left HZ set to
an empty value. Fix this by making the dependency on OMAP_32K_TIMER
rather than OMAP_32K_TIMER_HZ.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
asm/arch/irq.h used to be included from asm/irq.h, but was removed
from the ARM kernel a long time ago. Consequently, the contents
of asm/arch/irq.h (which mostly contain a definition for fixup_irq())
have not been used. Hence, remove asm/arch/irq.h.
Some machine support files incorrectly included this file, making
little or no use of the contents. Move the contents to a local
include file, and remove those include statements as well.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Move the HZ definition into Kconfig, and set appropriate defaults
for platforms. Remove mostly empty asm/arch/param.h include file.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Move the hardware PMD and PTE page table definitions from pgtable.h
into pgtable-hwdef.h, and include pgtable-hwdef.h as necessary.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Read the processor ID at boot, and save it in "processor_id" as we
did before. Later, when we re-parse the CPU type in the setup.c code,
re-use the value stored in "processor_id".
This allows a cleaner work-around for noMMU devices without CP#15.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The sys_fork is not supported in nommu mode. The other syscalls
that is not supported in nommu mode are to be defined as cond_signal
in kernel/sys_ni.c.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6:
[CRYPTO] aes: Fixed array boundary violation
[CRYPTO] tcrypt: Fix key alignment
[CRYPTO] all: Add missing cra_alignmask
[CRYPTO] all: Use kzalloc where possible
[CRYPTO] api: Align tfm context as wide as possible
[CRYPTO] twofish: Use rol32/ror32 where appropriate
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (23 commits)
[PATCH] sysfs: fix a kobject leak in sysfs_add_link on the error path
[PATCH] sysfs: don't export dir symbols
[PATCH] get_cpu_sysdev() signedness fix
[PATCH] kobject_add_dir
[PATCH] debugfs: Add debugfs_create_blob() helper for exporting binary data
[PATCH] sysfs: fix problem with duplicate sysfs directories and files
[PATCH] Kobject: kobject.h: fix a typo
[PATCH] Kobject: provide better warning messages when people do stupid things
[PATCH] Driver core: add macros notice(), dev_notice()
[PATCH] firmware: fix BUG: in fw_realloc_buffer
[PATCH] sysfs: kzalloc conversion
[PATCH] fix module sysfs files reference counting
[PATCH] add EXPORT_SYMBOL_GPL_FUTURE() to USB subsystem
[PATCH] add EXPORT_SYMBOL_GPL_FUTURE() to RCU subsystem
[PATCH] add EXPORT_SYMBOL_GPL_FUTURE()
[PATCH] Clean up module.c symbol searching logic
[PATCH] kobj_map semaphore to mutex conversion
[PATCH] kref: avoid an atomic operation in kref_put()
[PATCH] handle errors returned by platform_get_irq*()
[PATCH] driver core: platform_get_irq*(): return -ENXIO on error
...
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
README: bzip2 is not new
Documentation/Changes: remove outdated translation references
remove dead Radeon URL
SCSI_AACRAID: add a help text
update the i386 defconfig
MAINTAINERS: remove the LANMEDIA entry
Move ip2.c and ip2main.c to drivers/char/ip2/ where the other files
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Update defconfigs.
[MIPS] Separate CPU entries in /proc/cpuinfo with a blank line.
[MIPS] sys_mmap2 offset argument should always be shifted 12, not PAGE_SHIFT.
[MIPS] TX49XX has prefetch.
[MIPS] Kill tlb-andes.c.
[MIPS] War on whitespace: cleanup initial spaces followed by tabs.
[MIPS] Makefile crapectomy.
[MIPS] Reformat __xchg().
[MIPS] Mention Broadcom part number for BigSur board
[MIPS] Remove CONFIG_BUILD_ELF64.
[MIPS] Further sparsification for 32-bit compat code.
[MIPS] fix wrong __user usage in _sysn32_rt_sigsuspend
[MIPS] Signal cleanup
[MIPS] Reformat all of signal32.c with tabs instead of space for consistency
[MIPS] Delete unused sys32_waitpid.
[MIPS] Make I/O helpers more customizable
[MIPS] Symmetric Uniprocessor support for Qemu.
[MIPS] sc-rm7k.c cleanup
[MIPS] MIPS64 R2 optimizations for 64-bit endianess swapping.
[MIPS] Add early console for Cobalt.
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] Fix cosmetic typo in asm/irq.h
[ARM] 3367/1: CLCD mode no longer supported on the RealView boards
[ARM] 3366/1: Allow the 16bpp mode configuration in the CLCD control register
