linux-toradex.git/include/asm-sparc64, branch v2.6.12

[PATCH] AGP fix for Xen VMM

2005-06-07T19:35:43+00:00

When Linux is running on the Xen virtual machine monitor, physical
addresses are virtualised and cannot be directly referenced by the AGP
GART.  This patch fixes the GART driver for Xen by adding a layer of
abstraction between physical addresses and 'GART addresses'.

Architecture-specific functions are also defined for allocating and freeing
the GATT.  Xen requires this to ensure that table really is contiguous from
the point of view of the GART.

These extra interface functions are defined as 'no-ops' for all existing
architectures that use the GART driver.

Signed-off-by: Keir Fraser 
Signed-off-by: Andrew Morton 
Signed-off-by: Dave Jones

[SPARC64]: Fix streaming buffer flushing on PCI and SBUS.

2005-05-31T23:57:59+00:00

Firstly, if the direction is TODEVICE, then dirty data in the
streaming cache is impossible so we can elide the flush-flag
synchronization in that case.

Next, the context allocator is broken.  It is highly likely
that contexts get used multiple times for different dma
mappings, which confuses the strbuf flushing code and makes
it run inefficiently.

Signed-off-by: David S. Miller

[SPARC64]: Add boot option to force UltraSPARC-III P-Cache on.

2005-05-23T22:52:08+00:00

Older UltraSPARC-III chips have a P-Cache bug that makes us disable it
by default at boot time.

However, this does hurt performance substantially, particularly with
memcpy(), and the bug is _incredibly_ obscure.  I have never seen it
triggered in practice, ever.

So provide a "-P" boot option that forces the P-Cache on.  It taints
the kernel, so if it does trigger and cause some data corruption or
OOPS, we will find out in the logs that this option was on when it
happened.

Signed-off-by: David S. Miller

[SPARC64]: Kill useless __pte_alloc_one_kernel indirection

2005-05-05T21:27:56+00:00

warning: untested, but it there's not too much chance for screwups

Signed-off-by: David S. Miller

[PATCH] asm/signal.h unification

2005-05-04T14:33:15+00:00

New file - asm-generic/signal.h.  Contains declarations of
__sighandler_t, __sigrestore_t, SIG_DFL, SIG_IGN, SIG_ERR and default
definitions of SIG_BLOCK, SIG_UNBLOCK and SIG_SETMASK.

asm-*/signal.h switched to including it.  The only exception is
asm-parisc/signal.h that wants its own declaration of __sighandler_t;
that one is left as-is.

asm-ppc64/signal.h required one more thing - unlike everybody else it
used __sigrestorer_t instead of usual __sigrestore_t.  PPC64 switched to
common spelling.

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[PATCH] ISA_DMA Kconfig fixes - part 2 (parport_pc)

2005-05-04T14:33:13+00:00

Part of parport_pc that uses ISA DMA helpers made conditional on
CONFIG_ISA_DMA_API.  As the result, driver got usable for boxen that do
not have ISA DMA stuff and have normal PCI parport card stuck into
them - these never use DMA anyway.

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[PATCH] consolidate SIGEV_PAD_SIZE

2005-05-01T15:59:08+00:00

Discussing with Matthew Wilcox some of his outstanding patches lead me to
this patch (among others).

The preamble in struct sigevent can be expressed independently of the
architecture.

Also use __ARCH_SI_PREAMBLE_SIZE on ia64.

Signed-off-by: Stephen Rothwell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] add EOWNERDEAD and ENOTRECOVERABLE version 2

2005-05-01T15:59:06+00:00

Add EOWNERDEAD and ENOTRECOVERABLE to all architectures.  This is to
support the upcoming patches for robust mutexes.

We normally don't reserve parts of the name/number space for external
patches, but robust mutexes are sufficiently popular and important to
justify it in this case.

Signed-off-by: Joe Korty 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] move SA_xxx defines to linux/signal.h

2005-05-01T15:59:02+00:00

The attached patch moves the IRQ-related SA_xxx flags (namely, SA_PROBE,
SA_SAMPLE_RANDOM and SA_SHIRQ) from all the arch-specific headers to
linux/signal.h.  This looks like a left-over after the irq-handling code
was consolidated.  The code was moved to kernel/irq/*, but the flags are
still left per-arch.

Right now, adding a new IRQ flag to the arch-specific header, like this
patch does:
http://cvs.sourceforge.net/viewcvs.py/*checkout*/alsa/alsa-driver/utils/patches/pcsp-kernel-2.6.10-03.diff?rev=1.1
no longer works, it breaks the compilation for all other arches, unless you
add that flag to all the other arch-specific headers too.  So I think such
a clean-up makes sense.

Signed-off-by: Stas Sergeev 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] remove all kernel BUGs

2005-05-01T15:59:01+00:00

This patch eliminates all kernel BUGs, trims about 35k off the typical
kernel, and makes the system slightly faster.

Signed-off-by: Matt Mackall 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds