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>
If the machine's clock is set to a bogus value, this check resulted
in userland waiting effectively forever for the RTC value to change,
so remove the check.
Signed-off-by: Paul Mackerras <paulus@samba.org>
This is so that the 32-bit CHRP code can use it. The MPC106
initialization code is now in arch/powerpc/sysdev/grackle.c and
is controlled by CONFIG_PPC_MPC106.
Signed-off-by: Paul Mackerras <paulus@samba.org>
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>
This changes the parameters for i8259_init so that it takes two
parameters: a physical address for generating an interrupt
acknowledge cycle, and an interrupt number offset. i8259_init
now sets the irq_desc[] for its interrupts; all the callers
were doing this, and that code is gone now. This also defines
a CONFIG_PPC_I8259 symbol to select i8259.o for inclusion, and
makes the platforms that need it select that symbol.
Signed-off-by: Paul Mackerras <paulus@samba.org>
This defines a CONFIG_INDIRECT_PCI symbol to control whether it
gets used or not, and fixes the Kconfig to select that symbol for
platforms that need it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
ras.o is only built for CONFIG_PPC_PSERIES, so move it into
arch/powerpc/platforms/pseries. Update Makefiles to suit.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
* 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>
A comment in lpevents.c refers to code that's actually in HvCallEvent.h.
The code in HvCallEvent.h is pretty obvious, so just remove the comment
altogether.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
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>
This switches the ARCH=ppc64 build to use arch/powerpc/platforms/powermac
instead of arch/ppc64/kernel/pmac*, and deletes the latter set of files.
Signed-off-by: Paul Mackerras <paulus@samba.org>
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>
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>
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>
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>
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>
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>
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>
Recent commits upstream have changed files which are currently
duplicated in arch/powerpc and include/asm-powerpc. This updates
them with the corresponding changes.
Signed-off-by: Paul Mackerras <paulus@samba.org>
On ARCH=ppc64 we were getting htab_hash_mask recalculated
to the correct value for our particular machine by accident.
In the merge tree, that code was commented out, so htab_hash_mask
was being corrupted.
We now set ppc64_pft_size instead which gets htab_has_mask
calculated correctly for us later. We should put an
ibm,pft-size property in the device tree at some point.
Also set -mno-minimal-toc in some makefiles.
Allow iSeries to configure PROC_DEVICETREE.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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>
This moves the Device_List member from struct device_node to
struct pci_dn, which cleans up the device_node and makes the code
a little simpler.
Signed-off-by: Paul Mackerras <paulus@samba.org>
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>
Since the files are now in arch/powerpc/platforms/powermac, the
pmac_ prefix that they had is redundant.
Signed-off-by: Paul Mackerras <paulus@samba.org>
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>
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>
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>
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>
