linux.git/arch/powerpc/kernel/Makefile, branch v2.6.17

powerpc: Use correct sequence for putting CPU into nap mode

2006-04-18T11:49:11+00:00

We weren't using the recommended sequence for putting the CPU into
nap mode.  When I changed the idle loop, for some reason 7447A cpus
started hanging when we put them into nap mode.  Changing to the
recommended sequence fixes that.

The complexity here is that the recommended sequence is a loop that
keeps putting the cpu back into nap mode.  Clearly we need some way
to break out of the loop when an interrupt (external interrupt,
decrementer, performance monitor) occurs.  Here we use a bit in
the thread_info struct to indicate that we need this, and the exception
entry code notices this and arranges for the exception to return
to the value in the link register, thus breaking out of the loop.
We use a new `local_flags' field in the thread_info which we can
alter without needing to use an atomic update sequence.

The PPC970 has the same recommended sequence, so we do the same thing
there too.

This also fixes a bug in the kernel stack overflow handling code on
32-bit, since it was causing a value that we needed in a register to
get trashed.

Signed-off-by: Paul Mackerras

powerpc: Move perfmon_fsl_booke.c over to arch/powerpc

2006-03-27T09:09:04+00:00

Signed-off-by: Paul Mackerras

powerpc: Move module.c over to arch/powerpc

2006-03-27T08:28:58+00:00

... and rename it to module_32.c since it is the 32-bit version.
The 32-bit and 64-bit ABIs are sufficiently different that having
a merged version isn't really practical.

Signed-off-by: Paul Mackerras

powerpc: Move cpu_setup_6xx.S and temp.c over to arch/powerpc

2006-03-27T08:15:26+00:00

Also renamed temp.c to tau_6xx.c (for thermal assist unit) and updated
the Kconfig option description and help text for CONFIG_TAU.

Signed-off-by: Paul Mackerras

powerpc: Move l2cr.S over to arch/powerpc

2006-03-27T04:22:28+00:00

No functional changes, but call it l2cr_6xx.S since it is specific
to 6xx-family (including G3/750 and G4/74xx) processors.

Signed-off-by: Paul Mackerras

powerpc: Unify the 32 and 64 bit idle loops

2006-03-27T04:03:03+00:00

This unifies the 32-bit (ARCH=ppc and ARCH=powerpc) and 64-bit idle
loops.  It brings over the concept of having a ppc_md.power_save
function from 32-bit to ARCH=powerpc, which lets us get rid of
native_idle().  With this we will also be able to simplify the idle
handling for pSeries and cell.

Signed-off-by: Paul Mackerras

ppc: Use the system call table from arch/powerpc/kernel/systbl.S

2006-02-10T05:02:20+00:00

With this, new system calls only have to be wired up in one place
for ARCH=ppc and ARCH=powerpc, rather than 2.

Signed-off-by: Paul Mackerras

powerpc/32: Restore previous version of 32-bit PCI code

2006-01-15T11:05:47+00:00

When I removed the powermac support from arch/ppc/kernel/pci.c,
I overlooked the fact that that file is used in 32-bit ARCH=powerpc
builds.  To prevent problems in future, restore the original version
of that file as arch/powerpc/kernel/pci_32.c, and use that.

Signed-off-by: Paul Mackerras

powerpc: make ARCH=ppc use arch/powerpc/kernel/process.c

2006-01-12T10:22:34+00:00

Commit 5388fb1025443ec223ba556b10efc4c5f83f8682 made signal_32.c
use discard_lazy_cpu_state, which broke ARCH=ppc because that
uses the common signal_32.c but has its own process.c.  Make ARCH=ppc
use the common process.c to fix this and to reduce the amount
of duplicated code.

Signed-off-by: Paul Mackerras

[PATCH] powerpc: Don't build crash.c for PPC32

2006-01-11T08:52:05+00:00

arch/powerpc/kernel/crash.c isn't safe for PPC32 (yet?), so don't build it.

Built with CONFIG_KEXEC=y for pmac32_defconfig, pseries_defconfig,
and g5_defconfig.

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