linux-toradex.git/include/asm-s390, branch v2.6.25.14

kvm: provide kvm.h for all architecture: fixes headers_install

2008-04-02T22:28:18+00:00

Currently include/linux/kvm.h is not considered by make headers_install,
because Kbuild cannot handle " unifdef-$(CONFIG_FOO) += foo.h.  This problem
was introduced by

commit fb56dbb31c4738a3918db81fd24da732ce3b4ae6
Author: Avi Kivity 
Date:   Sun Dec 2 10:50:06 2007 +0200

    KVM: Export include/linux/kvm.h only if $ARCH actually supports KVM

    Currently, make headers_check barfs due to , which 
    includes, not existing.  Rather than add a zillion s, export kvm.
    only if the arch actually supports it.

    Signed-off-by: Avi Kivity 

which makes this an 2.6.25 regression.

One way of solving the issue is to enhance Kbuild, but Avi and David conviced
me, that changing headers_install is not the way to go.  This patch changes
the definition for linux/kvm.h to unifdef-y.

If  unifdef-y is used for linux/kvm.h "make headers_check" will fail on all
architectures without asm/kvm.h.  Therefore, this patch also provides
asm/kvm.h on all architectures.

Signed-off-by: Christian Borntraeger 
Acked-by: Avi Kivity 
Cc: Sam Ravnborg 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Kprobes: indicate kretprobe support in Kconfig

2008-03-05T00:35:11+00:00

Add CONFIG_HAVE_KRETPROBES to the arch//Kconfig file for relevant
architectures with kprobes support.  This facilitates easy handling of
in-kernel modules (like samples/kprobes/kretprobe_example.c) that depend on
kretprobes being present in the kernel.

Thanks to Sam Ravnborg for helping make the patch more lean.

Per Mathieu's suggestion, added CONFIG_KRETPROBES and fixed up dependencies.

Signed-off-by: Ananth N Mavinakayanahalli 
Acked-by: Mathieu Desnoyers 
Acked-by: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[S390] find bit corner case.

2008-02-19T14:29:33+00:00

Fix [ext2_]find_first_[zero_]bit for the corner case of an all clear
or all set bit field by always handling that last word of the bit field
with __ffz_word/__ffs_word.

Signed-off-by: Martin Schwidefsky

[S390] dynamic page tables.

2008-02-09T17:24:41+00:00

Add support for different number of page table levels dependent
on the highest address used for a process. This will cause a 31 bit
process to use a two level page table instead of the four level page
table that is the default after the pud has been introduced. Likewise
a normal 64 bit process will use three levels instead of four. Only
if a process runs out of the 4 tera bytes which can be addressed with
a three level page table the fourth level is dynamically added. Then
the process can use up to 8 peta byte.

Signed-off-by: Martin Schwidefsky

[S390] Add four level page tables for CONFIG_64BIT=y.

2008-02-09T17:24:40+00:00

Signed-off-by: Martin Schwidefsky

[S390] 1K/2K page table pages.

2008-02-09T17:24:40+00:00

This patch implements 1K/2K page table pages for s390.

Signed-off-by: Martin Schwidefsky

[S390] Remove a.out header file.

2008-02-09T17:24:39+00:00

Signed-off-by: Martin Schwidefsky

[S390] VMEM_MAX_PHYS overflow on 31 bit.

2008-02-09T17:24:38+00:00

With the new space saving spinlock_t and a non-debug configuration
the struct page only has 32 bytes for 31 bit s390. The causes an
overflow in the calculation of VMEM_MAX_PHYS which renders the
kernel unbootable.

Signed-off-by: Martin Schwidefsky

[S390] Fix __ffs_word_loop/__ffz_word_loop inlnie assembly.

2008-02-09T17:24:37+00:00

The black art of inline assemblies.. The new __ffs_word_loop/
__ffz_word_loop inline assemblies need an early clobber for the
two input/output variables.

Signed-off-by: Martin Schwidefsky

[S390] Wire up new timerfd syscalls.

2008-02-09T17:24:37+00:00

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky