Revert wrong changes introduced in 2.4.21.

From: Stefan Talpalaru <stefantalpalaru@yahoo.com>,
      Ingo Kilian <ikilian@web.de>.

The MSI port to x86-64 added an interrupt routing bug that makes the
kernel not boot anymore on some machines.

Fix that.

From Pavel Machek

sometimes nanoseconds are used, sometimes microseconds, sometimes even something else.

Dominik Brodowski.

From Dominik Brodowski

into home.osdl.org:/home/torvalds/v2.5/linux

into home.osdl.org:/home/torvalds/v2.5/linux

On ARM, it is possible to configure the desired cache policy in
the page tables.  Unfortunately, we haven't been updating the
protection_map nor PAGE_KERNEL, so this option doesn't change
the behaviour of the majority of mappings.  This cset corrects
this oversight.

into home.osdl.org:/home/torvalds/v2.5/linux

Patch from: Amit Gurdasani

I have a PROLiNK 1456VH internal Rockwell-based ISA PnP K56flex fax modem
whose EISA ID seems not to be known to 8250_pnp.c. The ID is AEI0250 as
reported in /sys/devices/pnp1/01:01/01:01.00/id and adding this into the
pnp_dev_table[] allows the device to be found and enabled properly by the
8250 serial driver.

From Daniel Tram Lux: under extreme irq load on an underpowered CPU,
the timeout loop may not make any progress, and decide that a timeout
occurred before it has actually tested the status register.

The minimal fix for now is to just have a final test _after_ the timeout
to remove the problem. The real fix would likely be to not have irqs
enabled between reading the status and the timeout. 

The resource handling left in autoconfig() is plainly wrong, since
we've already claimed the necessary resources prior to calling
autoconfig().  Therefore, we remove the superfluous code from
autoconfig().

Patch from: Rene Herman

This patch adds the PnP ID for the E-Tech CyberBULLET PC56RVP.

The memset for C stepping K8 was broken. This broke mainly CONFIG_SLAB_DEBUG
because memset(...., 0, ...) still worked correctly.

Thanks to Manfred Spraul for giving me the right cue.

At least one of them is critical. It fixes an path in the IOMMU that
I broke with the ealier "fullflush" workaround.

 - Check for ~/bin/installkernel like i386 (M. Bligh) 
 - Implement 32bit RTC_IRQ_SET correctly (Lutz Vieweg)
 - Disable some useless printks in 32bit emulation
 - Warning fixes for mixed C99 style declarations/statements.
 - Sync lAPIC power management with i386
 - Use topology sysfs like i386
 - Fix some serious bugs in the MCE handler. ECC should
   be decoded correctly now.
 - Add oops=panic option to panic on Oopses.
 - Fix hackish code in head.S
 - Add missing options in IOMMU
 - Fix _syscall6 (Olaf Hering)
 - Remove broken ACPI locking code. Port IA64 C version.
 - Make safe_smp_processor_id() more reliable
 - Read HPET in vsyscall code
 - Add workaround for BIOS that corrupt 64bit registers in HLT
 - Fix unaligned access in bitops.h
 - Remove broken ntp drift correction code for now
 - i386 merge in SCI setup
 - Fix wrong offset in callin.h (Jim Houston)
 - Minor comment fixes

into home.osdl.org:/home/torvalds/v2.5/linux

 - do not allocate firmware buffer if firmware is compiled into the
   driver.  Saves 220KB vmem (Andreas Oberritter)

 - Alter hotplug firmware naming to fit in with dvb standard.
 - Use the hotplug firmware loader for 2.6 kernels instead of compiling
   the firmware into the module. 
 - Integrate frontend into ttusb_dec module and remove pseudo-i2c bits,
   move ttusb_dec header into source file.
 - Rudimentary section filter support (enough for scan).

 - add Kconfig magic to select a firmware that can be compiled into the
   driver
 - add some hooks to av7110 to compile a firmware into the driver again

 - ves1820: increase mdelay from 30 to 50 to be more reliable with bad
   reception quality (Andreas Oberritter)
 - dst: remove AUTO_INVERSION for capabilities, allow params
   dst_type_flags and dst_type to have multiple values for multiple
   cards in one machine (Jamie Honan)

 - corrected handling of feed lists (Andres Oberritter)

 - add new documentation for getting bt8xx based DVB cards runnig
 - extend contributors list
 - change various email addresses in header files

Noted by Keith Owens.

	name-clash with declaration of routine of the same name in
	<linux/efi.h>.