Commit Graph

4060 Commits

Author SHA1 Message Date
Kelly Daly f218aab5cf merge filename and modify references to iseries/it_lp_naca.h
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02 13:51:41 +11:00
Kelly Daly e45423eac2 merge filename and modify references to iseries/hv_lp_event.h
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02 12:08:31 +11:00
Kelly Daly 8021b8a776 merge filename and modify references to iseries/hv_call_xm.h
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02 11:41:12 +11:00
David Gibson a0e60b2033 [PATCH] powerpc: Merge bitops.h
Here's a revised version.  This re-introduces the set_bits() function
from ppc64, which I removed because I thought it was unused (it exists
on no other arch).  In fact it is used in the powermac interrupt code
(but not on pSeries).

- We use LARXL/STCXL macros to generate the right (32 or 64 bit)
  instructions, similar to LDL/STL from ppc_asm.h, used in fpu.S

- ppc32 previously used a full "sync" barrier at the end of
  test_and_*_bit(), whereas ppc64 used an "isync".  The merged version
  uses "isync", since I believe that's sufficient.

- The ppc64 versions of then minix_*() bitmap functions have changed
  semantics.  Previously on ppc64, these functions were big-endian
  (that is bit 0 was the LSB in the first 64-bit, big-endian word).
  On ppc32 (and x86, for that matter, they were little-endian.  As far
  as I can tell, the big-endian usage was simply wrong - I guess
  no-one ever tried to use minixfs on ppc64.

- On ppc32 find_next_bit() and find_next_zero_bit() are no longer
  inline (they were already out-of-line on ppc64).

- For ppc64, sched_find_first_bit() has moved from mmu_context.h to
  the merged bitops.  What it was doing in mmu_context.h in the first
  place, I have no idea.

- The fls() function is now implemented using the cntlzw instruction
  on ppc64, instead of generic_fls(), as it already was on ppc32.

- For ARCH=ppc, this patch requires adding arch/powerpc/lib to the
  arch/ppc/Makefile.  This in turn requires some changes to
  arch/powerpc/lib/Makefile which didn't correctly handle ARCH=ppc.

Built and running on G5.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-01 21:49:02 +11:00
Arnd Bergmann e9add2eeb1 [PATCH] powerpc: move rtas_fw.c out of platforms/pseries
Cell uses the same code as pSeries for flashing the firmware
through rtas, so the implementation should not be part of
platforms/pseries.

Put it into arch/powerpc/kernel instead.

Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-01 21:02:59 +11:00
Arnd Bergmann f3f66f599d [PATCH] powerpc: Rename BPA to Cell
The official name for BPA is now CBEA (Cell Broadband
Engine Architecture). This patch renames all occurences
of the term BPA to 'Cell' for easier recognition.

Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-01 21:02:44 +11:00
Stephen Rothwell bec7c458b3 powerpc: make mem= work on iSeries again
By parsing the command line earlier, we can add the mem= value to the
flattened device tree and let the generic code sort out the memory limit
for us.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-01 14:34:30 +11:00
Paul Mackerras 734d652480 powerpc: apply recent changes to merged code
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-31 13:57:01 +11:00
Paul Mackerras cf00a8d18b powerpc: Fix bug arising from having multiple memory_limit variables
We had a static memory_limit in prom.c, and then another one defined
in setup_64.c and used in numa.c, which resulted in the kernel crashing
when mem=xxx was given on the command line.  This puts the declaration
in system.h and the definition in mem.c.  This also moves the
definition of tce_alloc_start/end out of setup_64.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-31 13:07:02 +11:00
Paul Mackerras 5f6b5b973a powerpc: Fix time setting bug on 32-bit
This fixes a bug where settimeofday would set the wrong parameters
in do_gtod, resulting in gettimeofday returning a value about 4
hours after the correct time.  The bug was that we divided a
negative 64-bit value with do_div, which treated it as unsigned
and gave us a result that was approximately 1.8e10 too large
(since the divisor was 1e9).

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-30 22:55:52 +11:00
Paul Mackerras c1c3a554a3 powerpc: 32-bit needs cur_cpu_spec exported too
Somehow we ended up with an #ifdef CONFIG_PPC64 around the export
of cur_cpu_spec, but raid6 as a module needs it on ppc32 as well
as ppc64.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-29 22:08:55 +10:00
Olaf Hering ea6526605a [PATCH] ppc64: remove duplicate local variable in set_preferred_console
remove duplicate local variable, saves 2 asm instructions.

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-29 15:23:08 +10:00
Paul Mackerras f78541dcec powerpc: Merge xmon
The merged version follows the ppc64 version pretty closely mostly,
and in fact ARCH=ppc64 now uses the arch/powerpc/xmon version.
The main difference for ppc64 is that the 'p' command to call
show_state (which was always pretty dodgy) has been replaced by
the ppc32 'p' command, which calls a given procedure (so in fact
the old 'p' command behaviour can be achieved with 'p $show_state').

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-28 22:53:37 +10:00
Paul Mackerras d73e0c99f5 powerpc: Rename asm offset TRAP to _TRAP for 32-bit
... for consistency with 64-bit.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-28 22:45:25 +10:00
Paul Mackerras 22b280324a Merge git://oak/home/sfr/kernels/iseries/work/ 2005-10-28 13:50:39 +10:00
Stephen Rothwell 640768eef2 ppc64: use the merged syscall table
This allows us to also use entry_64.S from the merged tree and reverts
the setup_64.c part of fda262b897.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-28 12:51:45 +10:00
David Gibson a8e3d48150 [PATCH] powerpc: Remove dregs of bootinfo.h
Since I sent the patch to purge bootinfo.h from ARCH=powerpc and
ARCH=ppc64, setup-common.c has come into existence, and another
#include of bootinfo.h slipped in.  This patch removes it.  It also
removes include/asm-ppc64/bootinfo.h, which somehow survived the
previous patch which was supposed to remove it.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-28 11:37:03 +10:00
Kumar Gala e6b4fe92ef [PATCH] powerpc: only build idle_6xx for 6xx
For the current time idle_6xx only applies to 6xx ppc32 CPUs

Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-28 11:36:55 +10:00
Paul Mackerras 9675c7ebcf ppc64: Include arch/powerpc/kernel/setup-common.o
... which is needed now that ARCH=ppc64 is using the merged
setup_64.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-28 08:30:25 +10:00
Paul Mackerras 6316222ea0 powerpc: Introduce toreal/fromreal assembly macros
On 32-bit platforms, these convert from kernel virtual addresses
to real (physical addresses), like tophys/tovirt but they use
the same register for the source and destination.  On 64-bit
platforms, they do nothing because the hardware ignores the top
two bits of the address in real mode.

These new macros are used in fpu.S now.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27 22:44:39 +10:00
Paul Mackerras 80579e1f4a powerpc: 32-bit CHRP SMP fixes
Untested, but "should" work...  at least this way it compiles.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27 22:42:04 +10:00
Paul Mackerras eef69e3cfb powerpc: remove duplicate screen_info from setup_32.c
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27 22:21:37 +10:00
David Gibson e37bc5df8e [PATCH] powerpc: Purge bootinfo.h
With ARCH=powerpc we assume the presence of a device tree, so we don't
require any support for the old bi_recs method of passing boot
parameters.  Likewise, we've never needed it for ppc64, but we still
had an include/asm-ppc64/bootinfo.h from which nothing was used.  This
patch removes that file, and all references to it in arch/ppc64 and
arch/powerpc.  A related, unused variable 'boot_mem_size' is also
removed from setup_32.c.  The bootinfo stuff remains in ARCH=ppc for
the time being.

Built and booted on Power5 (ARCH=ppc64 and ARCH=powerpc), built for
32-bit powermac (ARCH=powerpc and ARCH=ppc).

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27 20:50:46 +10:00
David Gibson 25c8a78b1e [PATCH] powerpc: Fix handling of fpscr on 64-bit
The recent merge of fpu.S broken the handling of fpscr for
ARCH=powerpc and CONFIG_PPC64=y.  FP registers could be corrupted,
leading to strange random application crashes.

The confusion arises, because the thread_struct has (and requires) a
64-bit area to save the fpscr, because we use load/store double
instructions to get it in to/out of the FPU.  However, only the low
32-bits are actually used, so we want to treat it as a 32-bit quantity
when manipulating its bits to avoid extra load/stores on 32-bit.  This
patch replaces the current definition with a structure of two 32-bit
quantities (pad and val), to clarify things as much as is possible.
The 'val' field is used when manipulating bits, the structure itself
is used when obtaining the address for loading/unloading the value
from the FPU.

While we're at it, consolidate the 4 (!) almost identical versions of
cvt_fd() and cvt_df() (arch/ppc/kernel/misc.S,
arch/ppc64/kernel/misc.S, arch/powerpc/kernel/misc_32.S,
arch/powerpc/kernel/misc_64.S) into a single version in fpu.S.  The
new version takes a pointer to thread_struct and applies the correct
offset itself, rather than a pointer to the fpscr field itself, again
to avoid confusion as to which is the correct field to use.

Finally, this patch makes ARCH=ppc64 also use the consolidated fpu.S
code, which it previously did not.

Built for G5 (ARCH=ppc64 and ARCH=powerpc), 32-bit powermac (ARCH=ppc
and ARCH=powerpc) and Walnut (ARCH=ppc, CONFIG_MATH_EMULATION=y).
Booted on G5 (ARCH=powerpc) and things which previously fell over no
longer do.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27 20:48:50 +10:00
Paul Mackerras fda262b897 [PATCH] ppc64: remove arch/ppc64/kernel/setup.c
and use setup_64.c from the merged tree instead.  The only difference
between them was the code to set up the syscall maps.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27 20:20:42 +10:00
Paul Mackerras cb4ab974ae powerpc: Remove common stuff from setup_64.c
This should have been in commit 03501dab03
but got missed by accident.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27 11:08:31 +10:00
Paul Mackerras c49888203d powerpc: Fixes to get the Longtrail CHRP a bit further
Talk about buggy firmware...  the OF on the Longtrail returns 0
from the claim client service rather than -1 when the claim fails.
It also has no device_type on the /memory node and blows up if
the output buffer for package-to-path is too big.

This also fixes a bug with calling alloc_up with align == 0, where
we did _ALIGN_UP(alloc_bottom, 0) which will end up as 0.

Lastly, we now check the return value (in r3) from calling the
prom, and return -1 from call_prom if we get a negative value back.
That is supposed to indicate that the requested client service
doesn't exist.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26 21:52:53 +10:00
Paul Mackerras bbd0abda9c powerpc: Merge 32-bit CHRP support.
SMP still needs more work but UP gets as far as starting userspace
at least.  This uses the 64-bit-style code for spinning up the cpus.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26 21:45:56 +10:00
Paul Mackerras 6d0124fc06 powerpc: Fix interrupt-tree parsing
The interrupt-tree parsing code wasn't offsetting interrupt numbers
by 16 on 32-bit platforms with an i8259 interrupt controller, and
it was confused about the encoding of interrupt sense and level
(which is different for i8259 and openpic interrupt controllers,
just to make things interesting).

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26 17:19:06 +10:00
Paul Mackerras 03501dab03 powerpc: Pull common bits of setup_{32,64}.c into setup-common.c
This creates a new arch/powerpc/kernel/setup-common.c with various
bits that setup_32.c and setup_64.c had in common - functions like
machine_shutdown/restart/power_off, show_cpuinfo, set_preferred_console
etc.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26 17:11:18 +10:00
Paul Mackerras 033ef338b6 powerpc: Merge rtas.c into arch/powerpc/kernel
This splits arch/ppc64/kernel/rtas.c into arch/powerpc/kernel/rtas.c,
which contains generic RTAS functions useful on any CHRP platform,
and arch/powerpc/platforms/pseries/rtas-fw.[ch], which contain
some pSeries-specific firmware flashing bits.  The parts of rtas.c
that are to do with pSeries-specific error logging are protected
by a new CONFIG_RTAS_ERROR_LOGGING symbol.  The inclusion of rtas.o
is controlled by the CONFIG_PPC_RTAS symbol, and the relevant
platforms select that.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26 17:05:24 +10:00
Kumar Gala 6d7f58b04d [PATCH] powerpc: Some minor cleanups to setup_32.c
* Removed of_show_percpuinfo and just report CPU frequency in generic
  show_cpuinfo code.
* Killed OCP and PPC_SYS related code which doesn't belong in the
  merge tree

Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26 15:55:53 +10:00
Kumar Gala 0fd6f71794 [PATCH] powerpc: Add support for Book-E timer config to generic_calibrate_decr
We need to initialize some control SPRS for timers on Book-E before
we start taking decrementer interrupts.

Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26 15:55:46 +10:00
Kumar Gala 60dda2565b [PATCH] powerpc: some prom.c cleanups
On !CONFIG_PPC_MULTIPLATFORM _machine is defined as 0.  This is ok, but
we can't assign a value to _machine then.

We may not have CONFIG_PCI available, so only build in support for
find_parent_pci_resource(), request_OF_resource(), release_OF_resource()
if PCI is enabled.  This is probably not the long term fix but works out
for now.

Make reg_property64 contain 64-bit elements on a 32-bit machine.

Mark the deprecated prom.c functions as __deprecated.

Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26 15:52:56 +10:00
Kumar Gala d2e6151257 [PATCH] powerpc: Make sure we have an RTC before trying to adjust it
Its valid for ppc_md.set_rtc_time to be NULL.  We need to check
that its non-NULL before trying to update the RTC.

Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26 15:52:37 +10:00
Stephen Rothwell 340601043d powerpc: Add a shutdown member to vio_driver
Add a shutdown member to struct vio_driver. We also need vio_bus_shutdown()
which converts from struct device to struct vio_dev and knows how to extract
the struct vio_driver.

Original patch adjusted for different location of vio.c.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-24 17:40:23 +10:00
Stephen Rothwell 6fdf5392ca powerpc: don't duplicate name between vio_driver and device_driver
Just set the name field directly in the device_driver structure
contained in the vio_driver struct.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-24 15:42:12 +10:00
Stephen Rothwell 580460194e powerpc: Merge arch/ppc64/kernel/vio.c into arch/powerpc/kernel/vio.c
Merge arch/ppc64/kernel/vio.c into arch/powerpc/kernel/vio.c, update
the Makefiles to make it work, and make ARCH=ppc64 still work.

Michael's version put vio.c in arch/powerpc/sysedv but after consolting
Paulus, this one puts it in arch/powerpc/kernel.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-24 15:41:44 +10:00
Paul Mackerras a575b80717 powerpc: Run on old powermacs.
Old powermacs have a number of differences from current machines:
- there is no interrupt tree in the device tree, just interrupt
  or AAPL,interrupt properties
- the chosen node in the device tree is called /chosen@0
- the OF claim method doesn't map the memory, so we have to do
  an explicit map call as well
- there is no /chosen/cpu property on SMP machines
- the NVRAM isn't structured as a set of partitions.

This adapts the merged powermac support code to cope with these
issues.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-23 17:23:21 +10:00
Paul Mackerras 96c4450760 powerpc: Fix time code for 601 processors
The 601 doesn't have the timebase register; instead it has an RTCL
register that counts nanoseconds and wraps at 1000000000, and an
RTCU register that counts seconds.  This makes the necessary changes
for the merged time code to use the RTCL/U registers when the kernel
is running on a 601.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-23 17:14:56 +10:00
Paul Mackerras 985990137e Merge changes from linux-2.6 by hand 2005-10-22 16:51:34 +10:00
Paul Mackerras 35499c0195 powerpc: Merge in 64-bit powermac support.
This brings in a lot of changes from arch/ppc64/kernel/pmac_*.c to
arch/powerpc/platforms/powermac/*.c and makes various minor tweaks
elsewhere.  On the powermac we now initialize ppc_md by copying
the whole pmac_md structure into it, which required some changes in
the ordering of initializations of individual fields of it.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-22 16:02:39 +10:00
Paul Mackerras a5b518ed31 ppc64/powerpc: Fix time initialization on SMP systems
This moves smp_space_timers from arch/ppc64/kernel/smp.c to
arch/powerpc/kernel/time.c and makes it initialize last_jiffy[]
instead of paca[].next_jiffy_update_tb, since last_jiffy[] is
now what the time code uses.  It also declares smp_space_timers
in include/asm-powerpc/time.h and gets rid of an ifdef in
div128_by_32.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-22 14:55:23 +10:00
Paul Mackerras e2b5530698 ppc64: Fix delivery of RT signals to 32-bit processes.
An error in merging led to 32-bit processes getting the wrong link
register value on entry to RT signal handlers, and the wrong stack
chain as well.  This fixes it.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-22 14:46:33 +10:00
Paul Mackerras 5c8c56ebdf powerpc: Move agp_special_page export to where it is defined
... instead of exporting it in arch/*/kernel/ppc_ksyms.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-22 14:42:51 +10:00
Michael Ellerman 05d84681ab [PATCH] powerpc: Fix mmap returning 64 bit addresses
The merge of syscalls.c & sys_ppc32.c (30286ef6e0)
broke mmap, if the mmap returned a 64 bit address.

do_mmap2 was taking the return value from do_mmap_pgoff (an unsigned long), and
storing it in an int, before returning it to sys_mmap as an unsigned long. So
we were losing the high bits of the address.

You would have thought the compiler could catch this for us ...

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-21 22:47:52 +10:00
Michael Ellerman 90eac727c6 [PATCH] powerpc: Don't blow away load_addr in start_thread
The patch to make process.c work for 32-bit and 64-bit
(06d67d5474) broke some 64-bit binaries.
We were blowing away load_addr in gpr[2], so we weren't properly relocating
the entry point.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-21 22:47:39 +10:00
David Gibson 6cb7bfebb1 [PATCH] powerpc: Merge thread_info.h
Merge ppc32 and ppc64 versions of thread_info.h.  They were pretty
similar already, the chief changes are:

	- Instead of inline asm to implement current_thread_info(),
which needs to be different for ppc32 and ppc64, we use C with an
asm("r1") register variable.  gcc turns it into the same asm as we
used to have for both platforms.
	- We replace ppc32's 'local_flags' with the ppc64
'syscall_noerror' field.  The noerror flag was in fact the only thing
in the local_flags field anyway, so the ppc64 approach is simpler, and
means we only need a load-immediate/store instead of load/mask/store
when clearing the flag.
	- In readiness for 64k pages, when THREAD_SIZE will be less
than a page, ppc64 used kmalloc() rather than get_free_pages() to
allocate the kernel stack.  With this patch we do the same for ppc32,
since there's no strong reason not to.
	- For ppc64, we no longer export THREAD_SHIFT and THREAD_SIZE
via asm-offsets, thread_info.h can now be safely included in asm, as
on ppc32.

Built and booted on G4 Powerbook (ARCH=ppc and ARCH=powerpc) and
Power5 (ARCH=ppc64 and ARCH=powerpc).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-21 22:47:23 +10:00
Paul Mackerras 5d14a18d59 powerpc: Fix some bugs in the new merged time code
I had the sense of the test for when to use the old 601-style RTC
registers inverted.  pmac_calibrate_decr and via_calibrate_decr
weren't setting ppc_tb_freq, on which all the further calculations
depended.  Lastly, update_gtod was losing the top 32 bits of
the new tb_to_xs value.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20 22:33:06 +10:00
Paul Mackerras 374e99d450 powerpc: Move some calculations from xxx_calibrate_decr to time_init
Previously the individual xxx_calibrate_decr functions would each
print the timebase and cpu frequency and calculate several values
such as tb_to_us and tb_to_xs.  This moves those printks and
calculations into time_init just after the call to the platform's
calibrate_decr function.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20 21:04:51 +10:00
Paul Mackerras 0458060c1c ppc64: Move init_boot_text call and conswitchp init into setup_arch
This way they get done in one place for all platforms, and it is
more consistent with what ppc32 does.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20 21:00:20 +10:00
Paul Mackerras 0dd194d02d powerpc: Fix places where ppc_md.show_[per]cpuinfo was treated as int
I missed a few places where ppc code was still assuming that the
ppc_md.show_[per]cpuinfo functions returned int.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20 20:48:19 +10:00
Paul Mackerras d8699e65c6 ppc64: Change ppc_md.get_cpuinfo to ppc_md.show_cpuinfo
... for consistency with ppc32; also add in ppc32's show_percpuinfo
function.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20 17:02:01 +10:00
David Gibson f7f6f4fea6 [PATCH] powerpc: Merge ppc64 pmc.[ch] with ppc32 perfmon.[ch]
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>
2005-10-20 16:22:24 +10:00
Paul Mackerras a4bcc95a3a powerpc: Fix a branch-too-far link error for 32-bit targets
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20 09:24:18 +10:00
Paul Mackerras f2783c1500 powerpc: Merge time.c and asm/time.h.
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>
2005-10-20 09:23:26 +10:00
Paul Mackerras b123923d48 powerpc: Move ptrace32.c from arch/ppc64 to arch/powerpc
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>
2005-10-20 09:11:29 +10:00
Paul Mackerras 9b7cf8b49d powerpc: Eliminate a compile warning in signal_32.c
The second argument of get_sigset_t needed to have the const keyword.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-19 23:13:04 +10:00
Paul Mackerras 46aab8c584 Merge rsync://oak/kernels/iseries/work/ 2005-10-18 14:53:41 +10:00
Stephen Rothwell b09a4913b1 powerpc: change sys32_ to compat_sys_
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>
2005-10-18 14:51:57 +10:00
Paul Mackerras 77f543cb46 powerpc: Fix various compile errors with ARCH=ppc, ppc64 and powerpc
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>
2005-10-18 14:19:41 +10:00
Stephen Rothwell 81e7009ea4 powerpc: merge ppc signal.c and ppc64 signal32.c
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-18 11:17:58 +10:00
David Gibson 55d363397f [PATCH] powerpc: Another maple merge tree fix
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>
2005-10-17 21:43:12 +10:00
David Gibson 61f684ec07 [PATCH] powerpc: Fix use of LOADBASE in merge tree
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>
2005-10-17 21:43:12 +10:00
Kumar Gala ea703ce206 [PATCH] powerpc: replace use of _GLOBAL with .globl
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>
2005-10-17 21:43:12 +10:00
Paul Mackerras dd184343b4 powerpc: Clear the BSS at the start of early_init with ARCH=ppc
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-17 20:13:47 +10:00
Paul Mackerras 30286ef6e0 powerpc: Merge syscalls.c and sys_ppc32.c.
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-17 20:10:13 +10:00
Paul Mackerras 30cd4a4e9c powerpc: Initialize btext subsystem later, after prom_init
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>
2005-10-17 19:20:46 +10:00
Stephen Rothwell 7dffb72028 ppc32: use L1_CACHE_SHIFT/L1_CACHE_BYTES
instead of L1_CACHE_LINE_SIZE and LG_L1_CACHE_LINE_SIZE

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-17 11:50:32 +10:00
Stephen Rothwell e8a30302ab powerpc: merge ptrace.c
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-13 15:52:04 +10:00
Stephen Rothwell eec5ef9098 ppc64: use powerpc of_device.c
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-13 15:16:25 +10:00
Stephen Rothwell d4bf9a7858 ppc64: merge binfmt_elf32.c
and use start_thread for both 32 and 64 bit bineries.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-13 13:40:54 +10:00
Stephen Rothwell 0f17d0742f powerpc: make 64 bit binaries work
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-13 09:49:56 +10:00
Stephen Rothwell 7062018687 powerpc: create 32 bit LOADADDR macro
and use it in misc_32.S

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-13 09:49:51 +10:00
Stephen Rothwell 4920960f57 powerpc: consolidate cputable.c
Also simplify arch/ppc64/kernel/Makefile

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-13 09:49:45 +10:00
Paul Mackerras 3eac8c69d1 powerpc: Move default hash table size calculation to hash_utils_64.c
We weren't computing the size of the hash table correctly on iSeries
because the relevant code in prom.c was #ifdef CONFIG_PPC_PSERIES.
This moves the code to hash_utils_64.c, makes it unconditional, and
cleans it up a bit.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-12 16:58:53 +10:00
Paul Mackerras 3abec857a0 ppc64: Use merged versions of init_task.c and process.c.
These two files are now built in arch/powerpc/kernel instead of
arch/ppc64/kernel.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-11 22:09:48 +10:00
Paul Mackerras fd582ec88e ppc: Various minor compile fixes
This fixes up a variety of minor problems in compiling with ARCH=ppc
arising from using the merged versions of various header files.
A lot of the changes are just adding #include <asm/machdep.h> to
files that use ppc_md or smp_ops_t.

This also arranges for us to use semaphore.c, vecemu.c, vector.S and
fpu.S from arch/powerpc/kernel when compiling with ARCH=ppc.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-11 22:08:12 +10:00
Paul Mackerras cc5aa206d2 powerpc: Remove debug messages from setup_64.c
A bunch of printks were left in arch/powerpc/kernel/setup_64.c from
when I was chasing a bug.  This removes them.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-11 17:35:20 +10:00
Paul Mackerras e574d238ab powerpc: Fix compilation for 32-bit configs
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:58:10 +10:00
Paul Mackerras c5200c90db powerpc: Fix off-by-one error in prom_init.c
This was preventing us from recognizing that we did actually
instantiate RTAS successfully on pSeries.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:57:03 +10:00
Paul Mackerras 40ef8cbc6d powerpc: Get 64-bit configs to compile with ARCH=powerpc
This is a bunch of mostly small fixes that are needed to get
ARCH=powerpc to compile for 64-bit.  This adds setup_64.c from
arch/ppc64/kernel/setup.c and locks.c from arch/ppc64/lib/locks.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:50:37 +10:00
Paul Mackerras bc6f8a4b19 powerpc: move lparmap.c to arch/powerpc/kernel
Since lparmap.s gets included in arch/powerpc/kernel/head_64.S,
this avoids depending on a file in another directory.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:45:07 +10:00
Paul Mackerras 5a408329ed powerpc: Fix bug caused by negation of 64-bit reloc_offset value
Although both ppc32 and ppc64 have a reloc_offset function, the ppc64
one produced the opposite sign to the ppc32 one.  This standardizes
on the ppc32 sign and fixes the merged 64-bit code to account for that.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:41:25 +10:00
Paul Mackerras 4a2885630b powerpc: Reduce the 32/64-bit diffs in vmlinux.lds.S
Also adds the definition of the _sdata symbol to the ppc64 vmlinux.lds.S.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:38:46 +10:00
Paul Mackerras 8641778049 powerpc: Reduce the 32/64-bit differences in traps.c
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:37:57 +10:00
Paul Mackerras b42b661745 powerpc: Make prom_init.c suitable for both 32-bit and 64-bit
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:37:16 +10:00
Paul Mackerras 9994a33865 powerpc: Introduce entry_{32,64}.S, misc_{32,64}.S, systbl.S
The system call table has been consolidated into systbl.S.  We have
separate 32-bit and 64-bit versions of entry.S and misc.S since the
code is mostly sufficiently different to be not worth merging.
There are some common bits that will be extracted in future.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:36:14 +10:00
Paul Mackerras 06d67d5474 powerpc: make process.c suitable for both 32-bit and 64-bit
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:29:05 +10:00
Paul Mackerras b3b8dc6c07 powerpc: Use reg.h instead of processor.h when we just want reg names
Now that the register names and bit definitions are all in reg.h,
use that instead of processor.h in assembly code in a few places.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:20:10 +10:00
Paul Mackerras 70d64ceaa1 powerpc: Rename files to have consistent _32/_64 suffixes
This doesn't change any code, just renames things so we consistently
have foo_32.c and foo_64.c where we have separate 32- and 64-bit
versions.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 21:52:43 +10:00
Paul Mackerras b5bbeb2373 powerpc: Use SPRN_xxx rather than xxx for SPR numbers
This changes symbols like HID0, SPRG3, SRR0, SRR1 etc. that refer to
special purpose registers to SPRN_HID0, SPRN_SPRG3, etc.  Using the
SPRN_ symbols clutters the namespace less, and the forthcoming merge
of asm/processor.h and asm/reg.h is going to remove the non-SPRN_
versions.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 14:01:07 +10:00
Paul Mackerras c16ff7e448 powerpc: Define a _sdata symbol
This is needed by arch/powerpc/mm/mem.c now.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 13:28:31 +10:00
Paul Mackerras 8dad3f9257 powerpc: Merge traps.c a bit more
This reduces the differences between ppc32 and ppc64 in
arch/powerpc/kernel/traps.c a bit further.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 13:27:05 +10:00
Paul Mackerras b3491269f5 powerpc: Use the merged of_device.c with ARCH=powerpc
Also compile btext.c with -fPIC; this was missed before.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 13:24:50 +10:00
Paul Mackerras 2e686bc3bf powerpc: Merge of_device.c and of_device.h
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 13:22:17 +10:00
Paul Mackerras 187a00679a powerpc: Remove 64-bit cpu support from ppc32.
These days there is no good reason to run a ppc32 kernel on a 64-bit
cpu, rather than a ppc64 kernel, so remove the config option and a
bunch of code (and ifdefs) from head.S.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 12:49:05 +10:00
Paul Mackerras 9b6b563c0d powerpc: Merge in the ppc64 version of the prom code.
This brings in the ppc64 version of prom_init.c, prom.c and btext.c
and makes them work for ppc32.  This also brings in the new calling
convention, where the first entry to the kernel (with r5 != 0) goes
to the prom_init code, which then restarts from the beginning (with
r5 == 0) after it has done its stuff.

For now this also brings in the ppc32 version of setup.c.  It also
merges lmb.h.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 12:06:20 +10:00
Paul Mackerras b85a046af3 powerpc: Define 32/64 bit asm macros and use them in fpu.S
These macros help in writing assembly code that works for both ppc32
and ppc64.  With this we now have a common fpu.S.  This takes out
load_up_fpu from head_64.S.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 10:59:19 +10:00
Paul Mackerras 292dcc86dd Merge rsync://ozlabs.org/sfr-git/for-paulus/ 2005-10-02 11:12:43 +10:00
Stephen Rothwell cabb558714 powerpc: make iSeries build
Merge vmlinux.lds.S.
Also remove arch/powerpc/kernel/vmlinux.lds which is a
generated file.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-01 18:52:10 +10:00
Stephen Rothwell bd142b70a6 ppc64: simplify the build a little
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-01 18:51:12 +10:00
Stephen Rothwell dc1c1ca3dc powerpc: merge idle_power4.S and trapc.s
Use idle_power4.S from ppc64 as we are not going to support
32 bit power4 in the merged tree.

Merge ppc64 traps.c into powerpc traps.c:
	use ppc64 versions of exception routine names
		(as they don't have StudlyCaps)
	make all the versions if die() have the same
		prototype

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-01 18:43:42 +10:00
Paul Mackerras c0c0d996d0 powerpc: Get merged kernel to compile and run on 32-bit SMP powermac.
This updates the powermac SMP code to use the mpic driver instead of
the openpic driver and fixes the SMP-dependent context switch code.
We had a subtle bug where we were using interrupt numbers 256-259 for
IPIs, but ppc32 had NR_IRQS = 256.  Moved the IPIs down to use interrupt
numbers 252-255 instead.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-01 13:49:08 +10:00
Stephen Rothwell ee400b63f3 powerpc: more cleanup of powerpc/kernel
Update head_64.S from arch/ppc64
Remove arc/ppc/kernel/fpu.S

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-30 18:04:06 +10:00
Stephen Rothwell d1dead5c5f powerpc: merge asm-offsets.c
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-30 18:03:59 +10:00
Paul Mackerras 20c8c21063 powerpc: Fixes to get the merged kernel to boot on powermac.
This merges ppc_ksyms.c, puts back the actual do_execve call in
sys_execve, makes init_MMU call find_end_of_memory rather than
ppc_md.find_end_of_memory (every platform has a device tree
with a /memory node now, right?) and fixes some problems with the
mpic initialization on newworld powermacs.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-28 20:28:14 +10:00
Kumar Gala 400d221274 [PATCH] ppc32: make cur_cpu_spec a single pointer instead of an array
Changed ppc32 so that cur_cpu_spec is just a single pointer for all CPUs.
Additionally, made call_setup_cpu check to see if the cpu_setup pointer
is NULL or not before calling the function.  This lets remove the dummy
cpu_setup calls that just return.

Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-28 15:42:54 +10:00
Paul Mackerras 14cf11af6c powerpc: Merge enough to start building in arch/powerpc.
This creates the directory structure under arch/powerpc and a bunch
of Kconfig files.  It does a first-cut merge of arch/powerpc/mm,
arch/powerpc/lib and arch/powerpc/platforms/powermac.  This is enough
to build a 32-bit powermac kernel with ARCH=powerpc.

For now we are getting some unmerged files from arch/ppc/kernel and
arch/ppc/syslib, or arch/ppc64/kernel.  This makes some minor changes
to files in those directories and files outside arch/powerpc.

The boot directory is still not merged.  That's going to be interesting.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-26 16:04:21 +10:00
Stephen Rothwell 564ee7a566 [PATCH] powerpc: Move arch/ppc*/kernel/vecemu.c to arch/powerpc
This file is the same in both architectures so create arch/powerpc/kernel
and move it there.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-21 19:21:07 +10:00