linux.git/arch/powerpc/kernel, branch v2.6.22-rc4

[POWERPC] Compare irq numbers with NO_IRQ not IRQ_NONE

2007-06-02T11:01:56+00:00

There is a thinko in the irq code, it uses IRQ_NONE to indicate no irq,
whereas it should be using NO_IRQ.  IRQ_NONE is returned from irq
handlers to say "not handled".

As it happens they currently have the same value (0), so this is just for
future proof-ness.

Signed-off-by: Michael Ellerman 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Fix ppc32 single-stepping out of syscalls

2007-06-02T11:01:55+00:00

The ppc32 kernel didn't properly set/clear the TIF_SINGLESTEP
flag, causing return from syscalls to not SIGTRAP, thus executing
one more instruction before stopping again.

This fixes it.  The ptrace code is a bit of a mess, and is overdue
for at least a -proper- 32/64 bits split and possibly more cleanups
but this minimum fix should be ok for 2.6.22

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Update documentation for of_find_node_by_type()

2007-06-02T11:01:55+00:00

The documentation for of_find_node_by_type() incorrectly refers to the
"name" parameter - it should be "type".

Also the behaviour when from == NULL is not really documented, fix that.

Signed-off-by: Michael Ellerman 
Signed-off-by: Paul Mackerras

[POWERPC] Fix powerpc vmlinux.lds.S

2007-05-22T10:20:56+00:00

Sam's recent change in 7664709b44a13e2e0b545e2dd8e7b8797a1748dc
broke things for us because we ended up with *(.text.*) before
*(.text), whereas previously *(.text) was first.  This was
important because the start of the text section contains the
kernel entry point.

In fact, we don't need that *(.text.*) thing anymore and it
incorrectly matched .text.init.refok, thus putting it before
.text. .. ouch !

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Fix typo: MMCR0_PMA0 != MMCR0_PMAO

2007-05-22T10:20:56+00:00

pmc.c has:

#ifndef MMCR0_PMA0
#define MMCR0_PMA0     0

This one took a while to find.  Unfortunately its the wrong define
(number 0 vs letter O). Its probably worth removing this override, since
if our includes get screwed up we will have the same (hard to debug)
failure.

Fix it simply for now, so that we can backport to stable.

Signed-off-by: Anton Blanchard 
Signed-off-by: Paul Mackerras

[POWERPC] Add missing pmc_type fields in cpu_table

2007-05-22T10:20:56+00:00

A number of cpu_table entries were missing the pmc_type field,
which means that the sysfs entries for the performance monitor
counters don't get created.  This adds them.

Signed-off-by: Anton Blanchard 
Signed-off-by: Paul Mackerras

[POWERPC] Fix smp_call_function to be preempt-safe

2007-05-22T10:20:56+00:00

smp_call_function_map() was not safe against preemption to another
cpu: its test for removing self from map was outside the spinlock.
Rearrange it a little to fix that.

smp_call_function_single() was also wrong: now get_cpu() before
excluding self, as other architectures do.

Signed-off-by: Hugh Dickins 
Signed-off-by: Paul Mackerras

all-archs: consolidate .data section definition in asm-generic

2007-05-19T07:11:57+00:00

With this consolidation we can now modify the .data
section definition in one spot for all archs.

Signed-off-by: Sam Ravnborg

all-archs: consolidate .text section definition in asm-generic

2007-05-19T07:11:57+00:00

Move definition of .text section to asm-generic.

Signed-off-by: Sam Ravnborg

[POWERPC] Fix ppc_rtas_progress_show()

2007-05-17T11:11:15+00:00

Fixes the warning

	arch/powerpc/kernel/rtas-proc.c: In function 'ppc_rtas_progress_show':
	arch/powerpc/kernel/rtas-proc.c:382: warning: the address of
		'progress_led' will always evaluate as 'true'

by fixing the code to do what it presumably is meant to do.

Signed-off-by: Segher Boessenkool 
Signed-off-by: Paul Mackerras