linux-toradex.git/include/asm-um, branch v2.6.20.21

[PATCH] uml: fix static linking for real

2007-04-06T20:02:33+00:00

There was a typo in commit b40b478e9972ec14cf144f1a03f88918789cbfe0,
preventing it from working - 32bit binaries crashed hopelessly before
the below fix and work perfectly now.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso 
Signed-off-by: Linus Torvalds 
[chrisw: update changelog to reflect -stable commit id]
Signed-off-by: Chris Wright

uml: fix unreasonably long udelay

2007-04-06T10:43:12+00:00

Currently we have a confused udelay implementation.

* __const_udelay does not accept usecs but xloops in i386 and x86_64
* our implementation requires usecs as arg
* it gets a xloops count when called by asm/arch/delay.h

Bugs related to this (extremely long shutdown times) where reported by some
x86_64 users, especially using Device Mapper.

To hit this bug, a compile-time constant time parameter must be passed - that's
why UML seems to work most times.
Fix this with a simple udelay implementation.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso 
Signed-off-by: Greg Kroah-Hartman

UML - Fix static linking

2007-04-06T10:43:11+00:00

During a static link, ld has started putting a .note section in the
.uml.setup.init section.  This has the result that the UML setups
begin with 32 bytes of garbage and UML crashes immediately on boot.

This patch creates a specific .note section for ld to drop this stuff
into.

Signed-off-by: Jeff Dike 
Signed-off-by: Greg Kroah-Hartman

UML - arch_prctl should set thread fs

2007-03-23T19:49:27+00:00

x86_64 needs some TLS fixes.  What was missing was remembering the child
thread id during clone and stuffing it into the child during each context
switch.

The %fs value is stored separately in the thread structure since the host
controls what effect it has on the actual register file.  The host also needs
to store it in its own thread struct, so we need the value kept outside the
register file.

arch_prctl_skas was fixed to call PTRACE_ARCH_PRCTL appropriately.  There is
some saving and restoring of registers in the ARCH_SET_* cases so that the
correct set of registers are changed on the host and restored to the process
when it runs again.

Signed-off-by: Jeff Dike 
Signed-off-by: Greg Kroah-Hartman

[PATCH] uml-i386: fix build breakage with CONFIG_HIGHMEM

2007-02-02T00:17:06+00:00

missing helper used by arch/i386/mm/highmem.c, which is pulled
into build on that configuration.

Signed-off-by: Al Viro 
Acked-by: Jeff Dike 
Signed-off-by: Linus Torvalds

[PATCH] UML: add generic BUG support

2006-12-08T16:28:39+00:00

The BUG changes in -mm3 need some arch support.  This patch adds the UML
support needed.  For the most part, it was stolen from the underlying
architecture.  The exception is the kernel eip < PAGE_OFFSET test, which is
wrong for skas mode UMLs.

Signed-off-by: Jeff Dike 
Cc: Jeremy Fitzhardinge 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Pass struct dev pointer to dma_cache_sync()

2006-12-07T16:39:41+00:00

Pass struct dev pointer to dma_cache_sync()

dma_cache_sync() is ill-designed in that it does not have a struct device
pointer argument which makes proper support for systems that consist of a
mix of coherent and non-coherent DMA devices hard.  Change dma_cache_sync
to take a struct device pointer as first argument and fix all its callers
to pass it.

Signed-off-by: Ralf Baechle 
Cc: James Bottomley 
Cc: "David S. Miller" 
Cc: Greg KH 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Add struct dev pointer to dma_is_consistent()

2006-12-07T16:39:41+00:00

dma_is_consistent() is ill-designed in that it does not have a struct
device pointer argument which makes proper support for systems that consist
of a mix of coherent and non-coherent DMA devices hard.  Change
dma_is_consistent to take a struct device pointer as first argument and fix
the sole caller to pass it.

Signed-off-by: Ralf Baechle 
Cc: James Bottomley 
Cc: "David S. Miller" 
Cc: Greg KH 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Driver core: add dev_archdata to struct device

2006-12-01T22:52:01+00:00

Add arch specific dev_archdata to struct device

Adds an arch specific struct dev_arch to struct device. This enables
architecture to add specific fields to every device in the system, like
DMA operation pointers, NUMA node ID, firmware specific data, etc...

Signed-off-by: Benjamin Herrenschmidt 
Acked-by: Andi Kleen 
Acked-By: David Howells 
Signed-off-by: Greg Kroah-Hartman

[PATCH] uml: add INITCALLS

2006-10-31T16:07:00+00:00

This is the UML piece of the INITCALLS tidying.

Signed-off-by: Jeff Dike 
Cc: Paolo 'Blaisorblade' Giarrusso 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds