This patches the ppc32 and ppc64 versions of the headers and .c files
with helper functions for manipulating the performance counting
hardware.  As a side effect, it removes use of the term "perfmon" from
ppc32, thus avoiding confusion with the unrelated performance counter
interface from HP Labs also called "perfmon".

Built, but not booted, for g5, pSeries, iSeries, and 32-bit Powermac
with both ARCH=powerpc and ARCH=ppc{,64} as appropriate.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

The _GLOBAL() macro is for text symbols only. Changed to using
.globl for .data symbols.  This is also needed in ppc32 land
to allow FSL Book-E, 40x, and 44x to work.
Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Some minor fixes that are needed if we are building for a book-e
processor.
Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

The code was incorrectly doing a division by 0 in the case where
the denominator was 0x100000000 and the divisor was 0xffffffff.
Thanks to Fred Liu of Motorola for pointing this out.
Signed-off-by: Paul Mackerras <paulus@samba.org>

Signed-off-by: Paul Mackerras <paulus@samba.org>

We now use the merged time.c for both 32-bit and 64-bit compilation
with ARCH=powerpc, and for ARCH=ppc64, but not for ARCH=ppc32.
This removes setup_default_decr (folds its function into time_init)
and moves wakeup_decrementer into time.c.  This also makes an
asm-powerpc/rtc.h.
Signed-off-by: Paul Mackerras <paulus@samba.org>

This defines CONFIG_PPC_STD_MMU for ppc64, changes an instance of
sys32_ to compat_sys_ in the ppc64 syscall table, and removes a
reference to a non-existent arch/powerpc/xmon/Makefile.
Signed-off-by: Paul Mackerras <paulus@samba.org>

Also corrected my email address in ptrace.c and updated the comments
at the top of ptrace32.c.
Signed-off-by: Paul Mackerras <paulus@samba.org>

The second argument of get_sigset_t needed to have the const keyword.
Signed-off-by: Paul Mackerras <paulus@samba.org>

Signed-off-by: Paul Mackerras <paulus@samba.org>

A few things change for consistency between ppc32 and ppc64:
idle functions return void; *_get_boot_time functions return
unsigned long (i.e. time_t) rather than filling in a struct rtc_time
(since that's useful to the callers and easier for pmac to
generate); *_get_rtc_time and *_set_rtc_time functions take
a struct rtc_time; irq_canonicalize is gone; nvram_sync returns
void.
Signed-off-by: Paul Mackerras <paulus@samba.org>

This makes platform code use the smp_ops variable directly instead
of ppc_md.smp_ops, removes the two unused `data' and `wait' arguments
from the *_message_pass() functions, and removes the call to the
never-implemented smp_ops->space_timers() function.
Signed-off-by: Paul Mackerras <paulus@samba.org>

This allows us to get rid of one type of entry in systbl.S.

In passing we remove the duplicate compat_sys_getdents and
compat_sys_utimes for which there are generic versions.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

This makes ppc use the syscalls.c from arch/powerpc/kernel, exports
copy_and_flush from head_32.S for use by prom_init.c (ARCH=powerpc),
and consolidates the sys_fadvise64_64 implementations for 32-bit.
Signed-off-by: Paul Mackerras <paulus@samba.org>

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

With ARCH=powerpc, a spurious ifdef in prom_init prevented the
seconday hold loop being correctly copied down on Maple.  With this
patch, Maple boots with ARCH=powerpc
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

The merge-tree version of LOADBASE actually loads the whole given
address from the toc for ppc64.  The matching OFF macro adjust for
this, using an offset of 0 for ppc64, but we weren't using that in
power4_idle.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

The _GLOBAL() macro is for text symbols only. Changed to using
.globl for .data symbols.
Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

... since all platforms will have a device tree.
Signed-off-by: Paul Mackerras <paulus@samba.org>

Signed-off-by: Paul Mackerras <paulus@samba.org>

This introduces flush_{fp,altivec,spe}_to_thread and fixes a
branch-too-far error in linking.
Signed-off-by: Paul Mackerras <paulus@samba.org>

Signed-off-by: Paul Mackerras <paulus@samba.org>

Signed-off-by: Paul Mackerras <paulus@samba.org>

We were initializing the btext stuff from prom_init(), thus breaking
the rule that all communication between prom_init() and the rest of
the kernel has to be via the flattened device tree.  This removes
the btext initialization calls from prom_init() and initializes it
instead after the device tree is unflattened.  It would be nice to
do it earlier, but that needs some more infrastructure to find the
properties we need in the flattened device tree.
Signed-off-by: Paul Mackerras <paulus@samba.org>

instead of L1_CACHE_LINE_SIZE and LG_L1_CACHE_LINE_SIZE
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

I forgot a semicolon.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

This allows us to simplify a couple of things.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

The only real user of this file outside platforms/iseries was
drivers/net/iseries_veth.c but all it wanted was ISERIES_HV_ADDR()
so we move that to abs_addr.h (and lowercase it).
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

It will now give ppc64 on 64bit platforms and ppc on 32bit
platforms.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

and use start_thread for both 32 and 64 bit bineries.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

and use it in misc_32.S
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Also simplify arch/ppc64/kernel/Makefile
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>