linux.git/arch/powerpc/kernel, branch v2.6.32

powerpc: Avoid giving out RTC dates below EPOCH

2009-11-05T06:06:21+00:00

Doing so causes xtime to be negative which crashes the timekeeping
code in funny ways when doing suspend/resume

Signed-off-by: Benjamin Herrenschmidt

powerpc/ppc64: Use preempt_schedule_irq instead of preempt_schedule

2009-10-27T05:42:43+00:00

Based on an original patch by Valentine Barshak 

Use preempt_schedule_irq to prevent infinite irq-entry and
eventual stack overflow problems with fast-paced IRQ sources.

This kind of problems has been observed on the PASemi Electra IDE
controller. We have to make sure we are soft-disabled before calling
preempt_schedule_irq and hard disable interrupts after that
to avoid unrecoverable exceptions.

This patch also moves the "clrrdi r9,r1,THREAD_SHIFT" out of
the #ifdef CONFIG_PPC_BOOK3E scope, since r9 is clobbered
and has to be restored in both cases.

Signed-off-by: Benjamin Herrenschmidt

powerpc: Fix compile errors found by new ppc64e_defconfig

2009-10-27T05:42:41+00:00

Fix the following 3 issues:

arch/powerpc/kernel/process.c: In function 'arch_randomize_brk':
arch/powerpc/kernel/process.c:1183: error: 'mmu_highuser_ssize' undeclared (first use in this function)
arch/powerpc/kernel/process.c:1183: error: (Each undeclared identifier is reported only once
arch/powerpc/kernel/process.c:1183: error: for each function it appears in.)
arch/powerpc/kernel/process.c:1183: error: 'MMU_SEGSIZE_1T' undeclared (first use in this function)

In file included from arch/powerpc/kernel/setup_64.c:60:
arch/powerpc/include/asm/mmu-hash64.h:132: error: redefinition of 'struct mmu_psize_def'
arch/powerpc/include/asm/mmu-hash64.h:159: error: expected identifier or '(' before numeric constant
arch/powerpc/include/asm/mmu-hash64.h:396: error: conflicting types for 'mm_context_t'
arch/powerpc/include/asm/mmu-book3e.h:184: error: previous declaration of 'mm_context_t' was here

cc1: warnings being treated as errors
arch/powerpc/kernel/pci_64.c: In function 'pcibios_unmap_io_space':
arch/powerpc/kernel/pci_64.c:100: error: unused variable 'res'

Signed-off-by: Kumar Gala 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Align vDSO base address

2009-10-27T05:42:40+00:00

The ABI specifies a 64K alignment, we need to map the vDSO accordingly

Signed-off-by: Andreas Schwab 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Fix segment mapping in vdso32

2009-10-27T05:42:40+00:00

Due to missing segment assignments the .text section was put in the NOTES
segment (and marked as NOTE section), and the .got was put in the DYNAMIC
segment.

Signed-off-by: Andreas Schwab 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf_events: Fix priority of MSR HV vs PR bits

2009-10-27T05:42:38+00:00

The architecture defines that if MSR PR is set we are in problem state
irrespective of the HV bit.  This fixes perf events to reflect this.

Also, on bare metal systems, samples taken in Linux will now be reported
as kernel rather than hypervisor.

Signed-off-by: Michael Neuling 
CC: paulus@samba.org
Signed-off-by: Benjamin Herrenschmidt

Merge commit 'ftrace/ppc' into merge

2009-10-15T03:09:11+00:00

powerpc/pci: Fix MODPOST warning

2009-10-14T05:58:40+00:00

making a powerpc target with PCI support, shows the
following warning:

  MODPOST vmlinux.o
WARNING: vmlinux.o(.text+0x10430): Section mismatch in reference from the
function pcibios_allocate_bus_resources() to the function .init.text:reparent_resources()

The function pcibios_allocate_bus_resources() references
the function __init reparent_resources().

This is often because pcibios_allocate_bus_resources lacks a __init
annotation or the annotation of reparent_resources is wrong.

This patch fix this warning by removing the __init
annotation before reparent_resources.

Signed-off-by: Heiko Schocher 
Signed-off-by: Benjamin Herrenschmidt

powerpc/oprofile: Add ppc750 CL as supported by oprofile

2009-10-14T05:58:39+00:00

Here's a patch that adds the ppc750 CL cpu as supported by oprofile.

Signed-off-by: Dragos Tatulea 
Signed-off-by: Benjamin Herrenschmidt

powerpc: warning: allocated section `.data_nosave' not in segment

2009-10-14T05:58:39+00:00

We need to align before the output section. Having the align inside
the output section causes the linker to put some filler in there,
which makes it a non-empty section, but this section isn't assigned to
a segment so you get a warning from the linker.

Signed-off-by: Sean MacLennan 
Acked-by: Segher Boessenkool 
Signed-off-by: Benjamin Herrenschmidt