linux.git/include/asm-sparc64, branch v2.6.22-rc4

[SPARC64]: Add missing NCS and SVC hypervisor interfaces.

2007-05-31T08:52:48+00:00

Signed-off-by: David S. Miller

[SPARC64]: Fill holes in hypervisor APIs and fix KTSB registry.

2007-05-29T09:52:15+00:00

Several interfaces were missing and others misnumbered or
improperly documented.

Also, make sure to check the return value when registering
the kernel TSBs with the hypervisor.  This helped to find
the 4MB kernel TSB alignment bug fixed in a previous changeset.

Signed-off-by: David S. Miller

[SPARC64]: Fix two bugs wrt. kernel 4MB TSB.

2007-05-29T09:51:38+00:00

1) The TSB lookup was not using the correct hash mask.

2) It was not aligned on a boundary equal to it's size,
   which is required by the sun4v Hypervisor.

wasn't having it's return value checked, and that bug will be fixed up
as well in a subsequent changeset.

Signed-off-by: David S. Miller

[SPARC64]: Eliminate NR_CPUS limitations.

2007-05-29T09:49:49+00:00

Cheetah systems can have cpuids as large as 1023, although physical
systems don't have that many cpus.

Only three limitations existed in the kernel preventing arbitrary
NR_CPUS values:

1) dcache dirty cpu state stored in page->flags on
   D-cache aliasing platforms.  With some build time
   calculations and some build-time BUG checks on
   page->flags layout, this one was easily solved.

2) The cheetah XCALL delivery code could only handle
   a cpumask with up to 32 cpus set.  Some simple looping
   logic clears that up too.

3) thread_info->cpu was a u8, easily changed to a u16.

There are a few spots in the kernel that still put NR_CPUS
sized arrays on the kernel stack, but that's not a sparc64
specific problem.

Signed-off-by: David S. Miller

[SPARC64]: Use machine description and OBP properly for cpu probing.

2007-05-29T09:49:41+00:00

Signed-off-by: David S. Miller

[SPARC64]: Report proper system soft state to the hypervisor.

2007-05-29T09:49:29+00:00

Signed-off-by: David S. Miller

[SPARC64]: Kill unused DIE_PAGE_FAULT enum value.

2007-05-29T09:49:14+00:00

sparc64 got rid of the pagefault notifiers, so the enum value for them
can go away aswell.

Signed-off-by: Christoph Hellwig 
Signed-off-by: David S. Miller

[SPARC64]: Add hypervisor API negotiation and fix console bugs.

2007-05-16T03:23:02+00:00

Hypervisor interfaces need to be negotiated in order to use
some API calls reliably.  So add a small set of interfaces
to request API versions and query current settings.

This allows us to fix some bugs in the hypervisor console:

1) If we can negotiate API group CORE of at least major 1
   minor 1 we can use con_read and con_write which can improve
   console performance quite a bit.

2) When we do a console write request, we should hold the
   spinlock around the whole request, not a byte at a time.
   What would happen is that it's easy for output from
   different cpus to get mixed with each other.

3) Use consistent udelay() based polling, udelay(1) each
   loop with a limit of 1000 polls to handle stuck hypervisor
   console.

Signed-off-by: David S. Miller

[SPARC64]: Accept ebus_bus_type for generic DMA ops.

2007-05-14T09:56:03+00:00

Based upon a bug report by Meelis Roos.

Signed-off-by: David S. Miller

[SPARC]: Wire up signalfd/timerfd/eventfd syscalls.

2007-05-12T05:06:51+00:00

Signed-off-by: David S. Miller