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Commit Graph

14489 Commits

Author SHA1 Message Date
Atsushi Nemoto
4614c32645 [MIPS] Make resources for ds1742 "static __initdata"
We can make resources for platform_device_register_simple() "static
__initdata".

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-24 16:02:47 +01:00
David Rientjes
f5dbeaf5ed [MIPS] Replace __attribute_used__ with __used
Replaces the deprecated __attribute_used__ with __used.  Also makes some
style adjustments to abide by the kernel coding conventions.

Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-24 16:02:47 +01:00
Yoichi Yuasa
fce2303166 [MIPS] Jazz: Remove unused arch/mips/jazz/io.c
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-24 16:02:47 +01:00
Atsushi Nemoto
fb4bb133ad [MIPS] Mark prom_free_prom_memory as __init_refok
> WARNING: vmlinux.o(.text+0xbf20): Section mismatch: reference to
> .init.text:prom_free_prom_memory (between 'free_initmem' and 'copy_from_user_page')

prom_free_prom_memory() is called _before_ freeing init sections, so
it is false positive.  __init_refok can be used for such cases.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-24 16:02:47 +01:00
Yoichi Yuasa
9a0f3b7360 [MIPS] MIPSsim: Fix cflags
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-24 16:02:47 +01:00
Jens Axboe
165125e1e4 [BLOCK] Get rid of request_queue_t typedef
Some of the code has been gradually transitioned to using the proper
struct request_queue, but there's lots left. So do a full sweet of
the kernel and get rid of this typedef and replace its uses with
the proper type.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-24 09:28:11 +02:00
Randy Vinson
637e9e13a1 [POWERPC] 85xxCDS: Make sure restart resets the PCI bus.
The current 85xxCDS restart code fails to reset the PCI bus which can
lead to odd behavior after the restart. This patch uses the VIA Super
Southbridge to perform a PCI reset which will reset the entire system.
NOTE: Since the VIA chip is behind a PCI-to-PCI bridge which can be
disabled with a switch setting, it may not be possible to perform the
PCI bus reset. In this case, the code defaults to the previous restart
mechanism.

Signed-off-by: Randy Vinson <rvinson@mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:35:12 -05:00
Randy Vinson
3620fc1da2 [POWERPC] 85xxCDS: Allow 8259 cascade to share an MPIC interrupt line.
The Freescale MPC8555CDS and MPC8548CDS reference hardware has a legacy
8259 interrupt controller pair contained within a VIA VT82C686B Southbridge
on the main carrier board. The processor complex plugs into the carrier
card using a PCI slot which limits the available interrupts to the
INTA-INTD PCI interrupts. The output of the 8259 cascade pair is routed
through a gate array and connected to the PCI INTA interrupt line.
The normal interrupt chaining hook (set_irq_chained_handler) does
not allow sharing of the chained interrupt which prevents the
use of PCI INTA by PCI devices. This patch allows the 8259 cascade
pair to share their interrupt line with PCI devices.

NOTE: The addition of the .end routine for the MPIC is not strictly
necessary for this patch. It's there so this code will run from within
the threaded interrupt context used by the Real Time patch.

Signed-off-by: Randy Vinson <rvinson@mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:34:40 -05:00
Kumar Gala
eb12af4333 [POWERPC] FSL: Add support for PCI-X controllers
Some set of 85xx platforms have PCI-X controllers.  The old arch/ppc
code setup these controllers and we haven't moved it over to arch/powerpc.

We use the PCI-X Capabilties to know if we are in PCI-X mode instead
of the Global Utilities PORDEVSR.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:30:14 -05:00
Kumar Gala
7391ff35b2 [POWERPC] Make sure virtual P2P bridge registers are setup on PCIe PHB
For the Freescale PCIe PHBs Not all firmwares setup the virtual P2P
bridge registers properly.  Make sure they get setup based on what
the struct pci_controller got from the device tree.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:30:11 -05:00
Kumar Gala
f64fddbeac [POWERPC] Provide ability to setup P2P bridge registers from struct resource
We need the ability to set P2P bridge registers to properly setup the virtual
P2P bridges that exist in PCIe controllers for some of the embedded setups.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:30:08 -05:00
Roy Zang
f16dab981a [POWERPC] Add basic PCI/PCI Express support for 8544DS board
Add basic support for the PCIe PHB and enable the ULI bridge.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:30:02 -05:00
Kumar Gala
2e56ff206b [POWERPC] Make endianess of cfg_addr for indirect pci ops runtime
Make it so we do a runtime check to know if we need to write cfg_addr
as big or little endian.  This is needed if we want to allow 86xx support
to co-exist in the same kernel as other 6xx PPCs.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:29:09 -05:00
Kumar Gala
d5269966e5 [POWERPC] Removed setup_indirect_pci_nomap
We don't use setup_indirect_pci_nomap in arch/powerpc and it appears
the users that needed it from arch/ppc are now using setup_indirect_pci.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Kumar Gala
4e7982115e [POWERPC] 85xx: Add quirk to ignore bogus FPGA on CDS
The newer Arcadia boards for CDS have an FPGA that shows up on PCI
however isn't a real PCI device.  Add a quirk to just ignore the
FPGA.

This is based on the following patch from Andy & York:

http://ozlabs.org/pipermail/linuxppc-dev/2007-February/032042.html

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Kumar Gala
aa3c112146 [POWERPC] 85xx: Added 8568 PCIe support
Added the PCIe device node to the 8568 dts and the needed quirk entries.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Kumar Gala
6c0a11c118 [POWERPC] Fixup resources on pci_bus for PCIe PHB when no device is connected
On the 85xx/86xx PCIe controllers if there is no device connected to the
PHB we will still allocate a pci_bus for downstream bus of the virtual
P2P bridge. However the resources allocated to the downstream bus are not
correct and so we just mimic the resources from the upstream pci_bus.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Roy Zang
66afe8780f [POWERPC] Add basic PCI node for mpc8568mds board
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Ebony Zhu <ebony.zhu@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Roy Zang
3f6c5dae27 [POWERPC] Use Freescale pci/pcie common code for 85xx boards
Switch the 85xx platform over to using the FSL generic PCI code.  This
gets ups PCIe support in addition to base PCI support.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Roy Zang
344ffde71e [POWERPC] Update PCI nodes in the 83xx/85xx boards device tree
Updated the 83xx & 85xx device tree PCI related compartible property.

Used the following compatible properties:
	PCI     "fsl,mpc8349-pci"
	PCI     "fsl,mpc8540-pci"
	PCI-X:  "fsl,mpc8540-pcix"
	PCIe:   "fsl,mpc8548-pcie"

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Roy Zang
02edff59c9 [POWERPC] Add 8548 CDS PCI express controller node and PCI-X device node
Add 8548 CDS PCI express controller node and PCI-X device node. The current
dts file is suitable for 8548 Rev 2.0 board with Arcadia 3.1.

This kind of board combination is the most popular.

Used the following compatible properties:
	PCI	"fsl,mpc8540-pci"
	PCI-X:	"fsl,mpc8540-pcix"
	PCIe:	"fsl,mpc8548-pcie"

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Kumar Gala
957ecffc25 [POWERPC] FSL: Cleanup how we detect if we are a PCIe controller
Use the PCI capabilities to determine if we are PCIe PHB.  Also use
PPC_INDIRECT_TYPE_NO_PCIE_LINK since the Freescale PCIe controllers
will lock the system if they don't have link and you try to do a config
access to anything but the PHB.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Kumar Gala
62c66c8e55 [POWERPC] Added indirect quirk to handle PCIe PHB that have issue w/no link
Added PPC_INDIRECT_TYPE_NO_PCIE_LINK flag to the indirect pci handling
code to ensure that we don't talk to any device other than the PHB
if we don't have PCIe link.  Some controllers will lockup if they try
to do a config cycle to any device on the bus except the PHB.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Kumar Gala
38805e5f09 [POWERPC] Add the ability to find PCI capabilities early on
Added early_find_capability that wraps pci_bus_find_capability and uses
fake_pci_bus() to allow us to call it before we've fully setup the
pci_controller.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Zang Roy-r61911
9ac4dd301e [POWERPC] Rewrite Freescale PCI/PCIe support for 8{3,5,6}xx
Rewrite the Freescale PCI code to support PCI on 83xx/85xx/86xx and
PCIe on 85xx/86xx.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Roy Zang
55c44991e2 [POWERPC] Create common fsl pci/e files based on 86xx platforms
Move
arch/powerpc/platforms/86xx/pci.c -> arch/powerpc/sysdev/fsl_pci.c
arch/powerpc/sysdev/fsl_pcie.h -> arch/powerpc/sysdev/fsl_pci.h
as the base to unify 83xx/85xx/86xx pci and pcie.

Add CONFIG_FSL_PCI to build fsl_pci.c for Freescale pci and pcie option.
The code still works for 86xx platforms.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Andi Kleen
037e20a3c5 x86_64: Rename CF Makefile variable in vdso
This avoids a conflict with sparse builds.

Reported by Alexey Dobriyan, fix suggested by Al Viro

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 12:43:28 -07:00
Al Viro
e9ed7e722e take declarations of enable_irq() et.al. to linux/interrupt.h
Now that the last inlined instances are gone, all that is left to do
is turning disable_irq_nosync on arm26 and m68k from defines to aliases
and we are all set - we can make these externs in linux/interrupt.h
uncoditional and kill remaining instances in asm/irq.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:44:00 -07:00
Linus Torvalds
7578634990 Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (60 commits)
  [ARM] 4524/1: S3C: Move register out of include/asm-arm/arch-s3c2410
  [ARM] 4523/1: S3C: Remove FIFO_MAX from uncompression headers
  [ARM] 4522/1: S3C: split include/asm-arm/arch/memory.h
  [ARM] 4521/2: S3C: Reorganise VA mapping headers
  [ARM] 4520/1: S3C: Remove old VA values from static map
  [ARM] 4519/1: S3C: split S3C2400 values out of S3C24XX map.h
  [ARM] 4518/1: S3C: Rename watchdog configuration options
  [ARM] 4517/1: S3C: Fix debug macros for ARM926 output
  [ARM] 4516/1: S3C: Fix uncompressor serial output for ARM926
  [ARM] 4515/1: S3C: Move uncompress code to plat-s3c
  [ARM] 4514/1: S3C: Rename DEBUG_S3C2410_PORT and DEBUG_S3C_UART
  [ARM] 4513/1: S3C: Rename CONFIG_S3C2410_LOWLEVEL_UART_PORT
  [ARM] 4512/1: S3C: rename the debug macros for per-cpu updates
  [ARM] 4511/1: S3C: updated LLSERIAL Kconfig defines for CPU support
  [ARM] 4510/1: S3C: split debug-macro support into plat-s3c
  [ARM] 4509/1: S3C: Create initial arch/arm/plat-s3c
  [ARM] 4508/1: S3C: Move items to include/asm-arm/plat-s3c
  [ARM] 4461/1: MXC platform and i.MX31ADS core support
  [ARM] 4507/1: pxa2xx clock_event_device
  [ARM] 4497/1: Only allow safe cache configurations on ARMv6 and later
  ...
2007-07-22 11:22:59 -07:00
Linus Torvalds
d7f5e3df35 Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: Convert from struct class_device to struct device
  leds: leds-gpio for ngw100
  leds: Add warning printks in error paths
  leds: Fix trigger unregister_simple if register_simple fails
  leds: Use menuconfig objects II - LED
  leds: Teach leds-gpio to handle timer-unsafe GPIOs
  leds: Add generic GPIO LED driver
2007-07-22 11:22:01 -07:00
Linus Torvalds
dc79747019 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Clean up duplicate includes in drivers/macintosh/
  [POWERPC] Quiet section mismatch warning on pcibios_setup
  [POWERPC] init and exit markings for hvc_iseries
  [POWERPC] Quiet section mismatch in hvc_rtas.c
  [POWERPC] Constify of_platform_driver match_table
  [POWERPC] hvcs: Make some things static and const
  [POWERPC] Constify of_platform_driver name
  [POWERPC] MPIC protected sources
  [POWERPC] of_detach_node()'s device node argument cannot be const
  [POWERPC] Fix ARCH=ppc builds
  [POWERPC] mv64x60: Use mutex instead of semaphore
  [POWERPC] Allow smp_call_function_single() to current cpu
  [POWERPC] Allow exec faults on readable areas on classic 32-bit PowerPC
  [POWERPC] Fix future firmware feature fixups function failure
  [POWERPC] fix showing xmon help
  [POWERPC] Make xmon_write accept a const buffer
  [POWERPC] Fix misspelled "CONFIG_CHECK_CACHE_COHERENCY" Kconfig option.
  [POWERPC] cell: CONFIG_SPE_BASE is a typo
2007-07-22 11:17:35 -07:00
Andi Kleen
0f760f1301 x86_64: Fix xen section warnings
Fix

WARNING: vmlinux.o(.data+0x99): Section mismatch: reference to .init.text:xen_start_kernel (between 'startup_xen' and 'boot_gdt_descr')

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:17:17 -07:00
Andi Kleen
5f3f7cc6ad x86_64: Fix paravirt compilation
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:17:17 -07:00
Linus Torvalds
39804b20f6 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (77 commits)
  ACPI: Populate /sys/firmware/acpi/tables/
  ACPI: create CONFIG_ACPI_DEBUG_FUNC_TRACE
  ACPI: update ACPI proc I/F removal schedule
  ACPI: update feature-removal-schedule.txt, /sys/firmware/acpi/namespace is gone
  ACPI: export ACPI events via acpi_mc_group multicast group
  ACPI: fix empty macros found by -Wextra
  ACPI: drivers/acpi/pci_link.c: lower printk severity
  sony-laptop: Fix event reading in sony-laptop
  sony-laptop: Add Vaio FE to the special init sequence
  sony-laptop: Make the driver use MSC_SCAN and a setkeycode and getkeycode key table.
  sony-laptop: Invoke _INI for SNC devices that provide it
  sony-laptop: Add support for recent Vaios Fn keys (C series for now)
  sony-laptop: map wireless switch events to KEY_WLAN
  sony-laptop: add new SNC handlers
  ACPI: thinkpad-acpi: add locking to brightness subdriver
  ACPI: thinkpad-acpi: bump up version to 0.15
  ACPI: thinkpad-acpi: make EC-based thermal readings non-experimental
  ACPI: thinkpad-acpi: make sure DSDT TMPx readings don't return +128
  ACPI: thinkpad-acpi: react to Lenovo ThinkPad differences in hot key
  ACPI: thinkpad-acpi: allow use of CMOS NVRAM for brightness control
  ...
2007-07-22 11:04:11 -07:00
Andi Kleen
b5d009ca6b x86_64: Remove outdated comment in boot decompressor Makefile
64bit code in there now since some time.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Andi Kleen
92417df076 x86_64: Squash initial_code modpost warnings
Get rid of warnings like

WARNING: vmlinux.o(.bootstrap.text+0x1a8): Section mismatch: reference to .init.text:x86_64_start_kernel (between 'initial_code' and 'init_rsp')

- Move initialization code into .text.head like i386 because modpost knows about this already
- Mark initial_code .initdata

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Sam Ravnborg
dec2e6b7aa x86_64: fix section mismatch warning in init.c
Fix following warning:
WARNING: vmlinux.o(.text+0x188ea): Section mismatch: reference to .init.text:__alloc_bootmem_core (between 'alloc_bootmem_high_node' and 'get_gate_vma')

alloc_bootmem_high_node() is only used from __init scope so declare it __init.
And in addition declare the weak variant __init too.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Sam Ravnborg
7aa6ec56b9 x86_64: fix section mismatch warning in hpet.c
Fix following warnings:
WARNING: vmlinux.o(.text+0x945e): Section mismatch: reference to .init.text:__set_fixmap (between 'hpet_arch_init' and 'hpet_mask_rtc_irq_bit')
WARNING: vmlinux.o(.text+0x9474): Section mismatch: reference to .init.text:__set_fixmap (between 'hpet_arch_init' and 'hpet_mask_rtc_irq_bit')

hpet_arch_init is only used from __init context so mark it __init.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Björn Steinbrink
a284b0518d i386: Fix the K7 NMI watchdog checkbit
The performance counters on K7 are only 48 bits wide, so using bit 63 to
check if the counter overflowed is wrong. Let's use bit 47 instead.

Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Cc: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Andi Kleen
57c22f49e4 i386: Handle P6s without performance counters in nmi watchdog
I got an oops while booting a 32bit kernel on KVM because it doesn't
implement performance counters used by the NMI watchdog. Handle this
case.

Cc: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Juergen Beisert
f25f64ed5b x86: Replace NSC/Cyrix specific chipset access macros by inlined functions.
Due to index register access ordering problems, when using macros a line
like this fails (and does nothing):

	setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88);

With inlined functions this line will work as expected.

Note about a side effect: Seems on Geode GX1 based systems the
"suspend on halt power saving feature" was never enabled due to this
wrong macro expansion. With inlined functions it will be enabled, but
this will stop the TSC when the CPU runs into a HLT instruction.
Kernel output something like this:
	Clocksource tsc unstable (delta = -472746897 ns)

This is the 3rd version of this patch.

 - Adding missed arch/i386/kernel/cpu/mtrr/state.c
	Thanks to Andres Salomon
 - Adding some big fat comments into the new header file
 	Suggested by Andi Kleen

AK: fixed x86-64 compilation

Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Keith Owens
20fe1d30e7 i386: Do not include other cpus' interrupt 0 in nmi_watchdog
kstat_irqs(0) includes the count of interrupt 0 from all cpus, not just
the current cpu.  The updated interrupt 0 on other cpus can stop the
nmi_watchdog from tripping, so only include the current cpu's int 0.

Signed-off-by: Keith Owens <kaos@ocs.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Andi Kleen
398cf2abdb i386: Tune AMD Fam10h/11h like K8
This mainly changes the nops for alternative, so not very revolutionary.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Andi Kleen
0bd8acd1a7 x86_64: Set K8 CPUID flag for K8/Fam10h/Fam11h
Previously this flag was only used on 32bit, but some shared code can use
it now.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:38 -07:00
Andi Kleen
fbab6e7a5c i386: Fix cpu_llc_id section mismatch warning
Fix

WARNING: arch/i386/kernel/built-in.o(.text+0xdd0d): Section mismatch: reference to .init.data:cpu_llc_id (between 'set_cpu_sibling_map' and 'initialize_secondary')
WARNING: arch/i386/kernel/built-in.o(.text+0xdd1b): Section mismatch: reference to .init.data:cpu_llc_id (between 'set_cpu_sibling_map' and 'initialize_secondary')

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:37 -07:00
Andi Kleen
8f4e956b31 x86: Stop MCEs and NMIs during code patching
When a machine check or NMI occurs while multiple byte code is patched
the CPU could theoretically see an inconsistent instruction and crash.
Prevent this by temporarily disabling MCEs and returning early in the
NMI handler.

Based on discussion with Mathieu Desnoyers.

Cc: Mathieu Desnoyers <compudj@krystal.dyndns.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:37 -07:00
Andi Kleen
19d36ccdc3 x86: Fix alternatives and kprobes to remap write-protected kernel text
Reenable kprobes and alternative patching when the kernel text is write
protected by DEBUG_RODATA

Add a general utility function to change write protected text.  The new
function remaps the code using vmap to write it and takes care of CPU
synchronization.  It also does CLFLUSH to make icache recovery faster.

There are some limitations on when the function can be used, see the
comment.

This is a newer version that also changes the paravirt_ops code.
text_poke also supports multi byte patching now.

Contains bug fixes from Zach Amsden and suggestions from Mathieu
Desnoyers.

Cc: Jan Beulich <jbeulich@novell.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Mathieu Desnoyers <compudj@krystal.dyndns.org>
Cc: Zach Amsden <zach@vmware.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:37 -07:00
Glauber de Oliveira Costa
f51c94528a x86_64: Use read and write crX in .c files
This patch uses the read and write functions provided at system.h
for control registers instead of writting raw assembly over and
over again in .c files. Functions to manipulate cr2 and cr8 were
provided, as they were lacking.

Also, removed some extra space after closing brackets

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:37 -07:00
Masoud Asgharifard Sharbiani
abd4f7505b x86: i386-show-unhandled-signals-v3
This patch makes the i386 behave the same way that x86_64 does when a
segfault happens.  A line gets printed to the kernel log so that tools
that need to check for failures can behave more uniformly between
debug.show_unhandled_signals sysctl variable to 0 (or by doing echo 0 >
/proc/sys/debug/exception-trace)

Also, all of the lines being printed are now using printk_ratelimit() to
deny the ability of DoS from a local user with a program like the
following:

main()
{
       while (1)
               if (!fork()) *(int *)0 = 0;
}

This new revision also includes the fix that Andrew did which got rid of
new sysctl that was added to the system in earlier versions of this.
Also, 'show-unhandled-signals' sysctl has been renamed back to the old
'exception-trace' to avoid breakage of people's scripts.

AK: Enabling by default for i386 will be likely controversal, but let's see what happens
AK: Really folks, before complaining just fix your segfaults
AK: I bet this will find a lot of silent issues

Signed-off-by: Masoud Sharbiani <masouds@google.com>
Signed-off-by: Andi Kleen <ak@suse.de>
[ Personally, I've found the complaints useful on x86-64, so I'm all for
  this. That said, I wonder if we could do it more prettily..   -Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 11:03:37 -07:00
Al Viro
5fa63fccc5 Fix ppc64 mismerge
Fix a mismerge in commit 8b6f50ef1d:
"spufs: make signal-notification files readonly for NOSCHED contexts",
where structs got duplicated.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 10:41:27 -07:00
Russell King
5957a4eb28 Merge branches 'at91', 'imx', 'iop', 'ixp', 'ks8695', 'misc', 'ns9xxx', 'pxa' and 's3c' into devel 2007-07-22 17:09:17 +01:00
Ben Dooks
06cfa55694 [ARM] 4524/1: S3C: Move register out of include/asm-arm/arch-s3c2410
Move register and other definitions out of the
include/asm-arm/arch-s3c2410 into the the arch
directories of include/asm-arm/plat-s3c24xx and
include/asm-arm/plat-s3c.

This move is in preperation of the merging of
s3c2400 and s3c6400.

The following git mv commands are needed before
this patch can be applied:

git mv include/asm-arm/arch-s3c2410/regs-ac97.h include/asm-arm/plat-s3c/regs-ac97.h
git mv include/asm-arm/arch-s3c2410/regs-adc.h include/asm-arm/plat-s3c/regs-adc.h
git mv include/asm-arm/arch-s3c2410/regs-iis.h include/asm-arm/plat-s3c24xx/regs-iis.h
git mv include/asm-arm/arch-s3c2410/regs-spi.h include/asm-arm/plat-s3c24xx/regs-spi.h
git mv include/asm-arm/arch-s3c2410/regs-udc.h include/asm-arm/plat-s3c24xx/regs-udc.h
git mv include/asm-arm/arch-s3c2410/udc.h include/asm-arm/plat-s3c24xx/udc.h

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 17:06:30 +01:00
Ben Dooks
bf2a3a26d1 [ARM] 4520/1: S3C: Remove old VA values from static map
Remove the static maps for the LCD and USB devices.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 16:44:42 +01:00
Ben Dooks
a45f82616e [ARM] 4518/1: S3C: Rename watchdog configuration options
Rename the S3C24XX configuration options for the watchdog
boot controls for moving to the arch/arm/plat-s3c moves.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 16:44:38 +01:00
Ben Dooks
3ec20520dd [ARM] 4514/1: S3C: Rename DEBUG_S3C2410_PORT and DEBUG_S3C_UART
Rename DEBUG_S3C2410_PORT to DEBUG_S3C_PORT as well as
DEBUG_S3C2410_UART to DEBUG_S3C_UART as part of the updates
to moving to plat-s3c for S3C base support.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 16:44:33 +01:00
Ben Dooks
c76578460f [ARM] 4513/1: S3C: Rename CONFIG_S3C2410_LOWLEVEL_UART_PORT
Rename CONFIG_S3C2410_LOWLEVEL_UART_PORT to be
CONFIG_S3C_LOWLEVEL_UART_PORT as we move to using
plat-s3c for base of S3C operations.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 16:44:32 +01:00
Ben Dooks
b2627588cb [ARM] 4511/1: S3C: updated LLSERIAL Kconfig defines for CPU support
Update the Kconfig to create configuration options based on which
CPUs are supported for the low level serial code. This means that
the debug macros can be optimised for the type(s) of CPU that are
being used.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 16:44:28 +01:00
Ben Dooks
d58153d865 [ARM] 4509/1: S3C: Create initial arch/arm/plat-s3c
Create the initial arch/arm/plat-s3c directory and start
linking it into the arch/arm build heirarchy ready to
receive the generic parts of the S3C24XX support to be
used when adding S3C6400 devices.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 16:44:26 +01:00
Ben Dooks
531b617c71 [ARM] 4508/1: S3C: Move items to include/asm-arm/plat-s3c
This patch moves items of the s3c24xx support into
a new plat-s3c directory for items that use the
s3c24xx support but are not directly s3c24xx
compatible, such as the s3c2400 and s3c6400.

git mv commands:
git mv include/asm-arm/arch-s3c2410/iic.h include/asm-arm/plat-s3c/iic.h
git mv include/asm-arm/arch-s3c2410/nand.h include/asm-arm/plat-s3c/nand.h
git mv include/asm-arm/arch-s3c2410/regs-iic.h include/asm-arm/plat-s3c/regs-iic.h
git mv include/asm-arm/arch-s3c2410/regs-nand.h include/asm-arm/plat-s3c/regs-nand.h
git mv include/asm-arm/arch-s3c2410/regs-rtc.h include/asm-arm/plat-s3c/regs-rtc.h
git mv include/asm-arm/arch-s3c2410/regs-serial.h include/asm-arm/plat-s3c/regs-serial.h
git mv include/asm-arm/arch-s3c2410/regs-timer.h include/asm-arm/plat-s3c/regs-timer.h
git mv include/asm-arm/arch-s3c2410/regs-watchdog.h include/asm-arm/plat-s3c/regs-watchdog.h

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 16:44:24 +01:00
Quinn Jensen
52c543f90c [ARM] 4461/1: MXC platform and i.MX31ADS core support
This patch adds the foundation pieces for
the Freescale MXC platforms, including
i.MX2 and i.MX3 based systems.

The bare-bones MX31 support in this patch
boots to the rootdev panic with 8250 serial
console configured "console=ttyS0,115200".
It assumes that Redboot is the boot loader.

Signed-off-by: Quinn Jensen <quinn.jensen@freescale.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 15:44:46 +01:00
Bill Gatliff
7bbb18c9f4 [ARM] 4507/1: pxa2xx clock_event_device
Reimplements arch/arm/mach-pxa/time.c using a clock_event_device based
on OSMR0. Tested on PXA270, linux-2.6.22+arm:pxa patches.

Signed-off-by: Bill Gatliff <bgat@billgatliff.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22 15:44:01 +01:00
Stephen Rothwell
a2b7390af4 [POWERPC] Quiet section mismatch warning on pcibios_setup
WARNING: vmlinux.o(.text+0x1cefcc): Section mismatch: reference to .init.text:.pcibios_setup (between '.pci_setup' and '.pci_init')

pci_setup() is marked __devinit and calls pcibios_setup.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:59 +10:00
Benjamin Herrenschmidt
7fd7218610 [POWERPC] MPIC protected sources
Some HW platforms, such as the new cell blades, requires some MPIC sources
to be left alone by the operating system. This implements support for
a "protected-sources" property in the mpic controller node containing a list
of source numbers to be protected against operating system interference.

For those interested in the gory details, the MPIC on the southbridge of
those blades has some of the processor outputs routed to the cell, and
at least one routed as a GPIO to the service processor. It will be used
in the GA product for routing some of the southbridge error interrupts
to the service processor which implements some of the RAS stuff, such
as checkstopping when fatal errors occurs before they can propagate.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:59 +10:00
Segher Boessenkool
34f329db54 [POWERPC] of_detach_node()'s device node argument cannot be const
...since it modifies it (when it sets the OF_DETACHED flag).

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:59 +10:00
Christoph Hellwig
461e666723 [POWERPC] mv64x60: Use mutex instead of semaphore
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:58 +10:00
Avi Kivity
adff093d6c [POWERPC] Allow smp_call_function_single() to current cpu
This removes the requirement for callers to get_cpu() to check in simple
cases.  i386 and x86_64 already received a similar treatment.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:58 +10:00
Paul Mackerras
08ae6cc15d [POWERPC] Allow exec faults on readable areas on classic 32-bit PowerPC
Classic 32-bit PowerPC CPUs, and the early 64-bit PowerPC CPUs, don't
provide a way to prevent execution from readable pages, that is, the
MMU doesn't distinguish between data reads and instruction reads,
although a different exception is taken for faults in data accesses
and instruction accesses.

Commit 9ba4ace39f, in the course of
fixing another bug, added a check that meant that a page fault due
to an instruction access would fail if the vma did not have the
VM_EXEC flag set.  This gives an inconsistent enforcement on these
CPUs of the no-execute status of the vma (since reading from the page
is sufficient to allow subsequent execution from it), and causes old
versions of ppc32 glibc (2.2 and earlier) to fail, since they rely
on executing the word before the GOT but don't have it marked
executable.

This fixes the problem by allowing execution from readable (or writable)
areas on CPUs which do not provide separate control over data and
instruction reads.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Jon Loeliger <jdl@freescale.com>
2007-07-22 21:30:58 +10:00
Michael Neuling
ca8ffc974d [POWERPC] Fix future firmware feature fixups function failure
Move firmware feature initialisation from pSeries_init_early to the
earlier pSeries_probe_hypertas so they are initialised before firmware
feature fixups are applied.

Currently firmware feature sections are only used for iSeries which
initialises the these features much earlier.  This is a bug in waiting
on pSeries.

Also adds some whitespace fixups.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:58 +10:00
Ishizaki Kou
4d404edce3 [POWERPC] fix showing xmon help
In some configuration, xmon help string is larger than xmon_printf
buffer.  We need not to use printf.  This patch adds xmon_puts and
change to use it to show help string.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:58 +10:00
Ishizaki Kou
776568d4c9 [POWERPC] Make xmon_write accept a const buffer
Because xmon_write doesn't change the buffer, we should add 'const'
qualifier to the argument which points it.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:58 +10:00
Robert P. J. Day
f8eb77d6fb [POWERPC] Fix misspelled "CONFIG_CHECK_CACHE_COHERENCY" Kconfig option.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:58 +10:00
Geert Uytterhoeven
1e57ba8ddd [POWERPC] cell: CONFIG_SPE_BASE is a typo
The config symbol for SPE support is called CONFIG_SPU_BASE, not
CONFIG_SPE_BASE.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22 21:30:57 +10:00
Len Brown
f79e3185dd Pull misc into release branch
Conflicts:

	Documentation/feature-removal-schedule.txt
2007-07-22 02:27:40 -04:00
Len Brown
22aadf8a07 Pull bugzilla-7880 into release branch 2007-07-22 02:25:03 -04:00
Linus Torvalds
6df8cd3d4f Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: ERROR: "sys_ioctl" [arch/sparc64/solaris/solaris.ko] undefined!
  [SPARC32]: Make PAGE_SHARED a read-mostly variable.
  [SPARC32]: Take enable_irq/disable_irq out of line.
  [SPARC32]: clean include/asm-sparc/irq.h
  [SPARC32]: Fix rounding errors in ndelay/udelay implementation.
2007-07-21 20:38:51 -07:00
Christoph Hellwig
3167d93fc0 [SPARC64]: ERROR: "sys_ioctl" [arch/sparc64/solaris/solaris.ko] undefined!
From: Christoph Hellwig <hch@infradead.org>

On Fri, Jul 20, 2007 at 09:24:42AM -0400, Horst H. von Brand wrote:
> When building v2.6.22-3478-g275afca on sparc64 (.config attached) I get:
> 
>   MODPOST vmlinux
>   Building modules, stage 2.
>   MODPOST 463 modules
> ERROR: "sys_ioctl" [arch/sparc64/solaris/solaris.ko] undefined!

Sorry, my fault.

It looked to me like sparc64 exports sys_ioctl on it's own, but it
only exports compat_sys_ioctl on it's own.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-21 19:22:42 -07:00
Al Viro
378e515c86 [SPARC32]: Make PAGE_SHARED a read-mostly variable.
same scheme as for sparc64, same rationale

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-21 19:20:34 -07:00
Al Viro
0f516813ce [SPARC32]: Take enable_irq/disable_irq out of line.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-21 19:19:38 -07:00
Al Viro
32231a66b4 [SPARC32]: clean include/asm-sparc/irq.h
Move stuff used only by arch/sparc/kernel/* into arch/sparc/kernel/irq.h
and into individual files in there (e.g. macros internal to sun4m_irq.c,
etc.)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-21 19:18:57 -07:00
Mark Fortescue
196bffa5dc [SPARC32]: Fix rounding errors in ndelay/udelay implementation.
__ndelay and __udelay have not been delayung >= specified time.
The problem with __ndelay has been tacked down to the rounding of the
multiplier constant. By changing this, delays > app 18us are correctly
calculated.
The problem with __udelay has also been tracked down to rounding issues.
Changing the multiplier constant (to match that used in sparc64) corrects
for large delays and adding in a rounding constant corrects for trunctaion
errors in the claculations.
Many short delays will return without looping. This is not an error as there
is the fixed delay of doing all the maths to calculate the loop count.

Signed-off-by: Mark Fortescue <mark@mtfhpc.demon.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-21 19:17:41 -07:00
Muli Ben-Yehuda
08f1c192c3 x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata
This patch introduces struct pci_sysdata to x86 and x86-64, and
converts the existing two users (NUMA, Calgary) to use it.

This lays the groundwork for having other users of sysdata, such as
the PCI domains work.

The Calgary bits are tested, the NUMA bits just look ok.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Joachim Deguara
7557244ba2 x86_64: make k8topology multi-core aware
This makes k8topology multicore aware instead of limited to signle- and
dual-core CPUs.  It uses the CPUID to be more future proof.

Signed-off-by: Joachim Deguara <joachim.deguara@amd.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Jan Beulich
81e02d19b9 x86_64: remove __smp_alt* sections
Leftovers from the removal of the more general (but abandoned) SMP
alternatives.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Robert P. J. Day
09fce8a195 i386: Update alignment when 4K stacks are used.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Stefan Richter
edc2cbf496 i386: remove old IRQ balancing debug cruft
Dead or misnamed CONFIG_BALANCED_IRQ_DEBUG found by Robert P. J. Day.
It's not a Kconfig variable.

Since this debug code is ancient, I suggest to get rid of this
misleading CONFIG_ macro by deleting all of this debug code.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Robert P. J. Day" <rpjday@mindspring.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Aaron Durbin
a1dfd851b9 i386: insert HPET firmware resource after PCI enumeration has completed
Insert HPET resources after pci probing has been completed in order to
avoid resource conflicts with PCI resource reservation.  With this change
the HPET firmware resources will be identified, but it should also not
cause issues when the HPET address falls on a BAR in a PCI device, and the
PCI enumeration cannot reserve the resources.

Signed-off-by: Aaron Durbin <adurbin@google.com>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Andres Salomon
f62e518484 i386: basic infrastructure support for AMD geode-class machines
This builds upon the existing geode infrastructure, but adds southbridge
support, some GPIO functions, and a header file (asm-i386/geode.h) with some
useful GX/LX detection tests.

The majority of this code was written by Jordan Crouse.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Dan Aloni
5a3ece79b2 x86_64: arch/x86_64/kernel/e820.c lower printk severity
Signed-off-by: Dan Aloni <da-x@monatomic.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Dan Aloni
753811dc82 x86_64: arch/x86_64/kernel/aperture.c lower printk severity
Users that use kernel log filtering (e.g.  via syslogd or a proprietry method)
wouldn't like to see warning prints that are not really warnings.

Signed-off-by: Dan Aloni <da-x@monatomic.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Jeremy Fitzhardinge
9585116ba0 i386: fix iounmap's use of vm_struct's size field
get_vm_area always returns an area with an adjacent guard page.  That guard
page is included in vm_struct.size.  iounmap uses vm_struct.size to
determine how much address space needs to have change_page_attr applied to
it, which will BUG if applied to the guard page.

This patch adds a helper function - get_vm_area_size() in linux/vmalloc.h -
to return the actual size of a vm area, and uses it to make iounmap do the
right thing.  There are probably other places which should be using
get_vm_area_size().

Thanks to Dave Young <hidave.darkstar@gmail.com> for debugging the
problem.

[ Andi, it wasn't clear to me whether x86_64 needs the same fix. ]

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Dave Young <hidave.darkstar@gmail.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Thomas Gleixner
a2900975ef i386: move PIT function declarations and constants to correct header file
setup_pit_timer is declared in asm-i386/timer.h.  Move it to the pit header
file, so it can be used by x86_64 as well.

Move also the PIT constants.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Chris Wright
43d6ca0184 i386: hpet assumes boot cpu is 0
I fixed this in x86_64.  Looks like the kind of thing that will break voyager
on i386.

Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Thomas Gleixner
f5352fd0ce i386: remove volatile in apic.c
Remove the volatile in apic.  We have a cpu_relax() in the wait loop.  Fix a
coding style issue while at it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Yinghai Lu
f2cf8e085c x86_64: move iommu declaration from proto to iommu.h
[akpm@linux-foundation.org: build fix]
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
David Rientjes
1c05f093c0 x86_64: disable srat when numa emulation succeeds
When NUMA emulation succeeds, acpi_numa needs to be set to -1 so that
srat_disabled() will always return true.  We won't be calling
acpi_scan_nodes() or registering the true nodes we've found.

[hugh@veritas.com: Fix x86_64 CONFIG_NUMA_EMU build: acpi_numa needs CONFIG_ACPI_NUMA]
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
David Rientjes
a7e96629ef x86_64: fix e820_hole_size based on address ranges
e820_hole_size() now uses the newly extracted helper function,
e820_find_active_region(), to determine the size of usable RAM in a range of
PFN's.

This was previously broken because of two reasons:

 - The start and end PFN's of each e820 entry were not properly rounded
   prior to excluding those entries in the range, and

 - Entries smaller than a page were not properly excluded from being
   accumulated.

This resulted in emulated nodes being incorrectly mapped to ranges that
were completely reserved and not candidates for being registered as
active ranges.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:14 -07:00
Yinghai Lu
bc2cea6a34 x86_64: disable the GART in shutdown
For K8 system: 4G RAM with memory hole remapping enabled, or more than 4G
RAM installed.  when using kexec to load second kernel.  In the second
kernel, when mem is allocated for GART, it will do the memset for clear, it
will cause restart, because some device still used that for dma.  solution
will be:

in second kernel: disable that at first before we try to allocate mem for
it.  or in the first kernel: do disable that before shutdown.
Andi/Eric/Alan prefer to second one for clean shutdown in first kernel.
Andi also point out need to consider to AGP enable but mem less 4G case
too.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:13 -07:00
Yinghai Lu
1048fa5281 x86_64: change _map_single to static in pci_gart.c etc
This function is called via dma_ops->.., so change it to static

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:13 -07:00
Dan Aloni
2d4fa2f665 x86_64: lower printk severity
Signed-off-by: Dan Aloni <da-x@monatomic.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:12 -07:00
Thomas Gleixner
28318daf79 x86_64: use the global PIT lock
Replace the pcspkr private PIT lock by the global PIT lock to serialize the
PIT access all over the place.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:12 -07:00