Adds utility routines used by 52xx device drivers and board support
code.  Main functionality is to add device nodes to the of_platform_bus,
retrieve the IPB bus frequency, and find+ioremap device registers.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NSylvain Munaut <tnt@246tNt.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

There is no need to expose these settings outside the scope
of the interrupt controller code itself.
Signed-off-by: NSylvain Munaut <tnt@246tNt.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The Efika board isn't different enough from other 52xx based boards to
justify a separate platform.  This patch merges it with the support
code for all other 52xx based boards.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NSylvain Munaut <tnt@246tNt.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

platforms/embedded6xx is probably going away, and 52xx boards need
some extra support the 52xx interrupt controller and DMA engine
anyway.  It makes sense to group all the 52xx bits into a single path.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NSylvain Munaut <tnt@246tNt.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

No other chips use this device, it belongs in a 52xx-specific path.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NSylvain Munaut <tnt@246tNt.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This document describes the device tree expectations for mpc52xx based
boards.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NSylvain Munaut <tnt@246tNt.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

It doesn't hurt to have this enabled on legacy iSeries and will mean it
is available for a combined build.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Commit 3ccfc65c missed the same fixes for
legacy iSeries specific code, so make some more symbols no longer global.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Mostly taken from corresponding Makefile's make-clean rule.

Tested by (cross)compiling for $ARCH PPC and POWERPC and checking
output of git-status.
Signed-off-by: NRutger Nijlunsing <git-commit@tux.tmfweb.nl>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

To allow arch/powerpc/kernel/crash.c to build on 32-bit we need a
definition of hard_irq_disable(). 32-bit doesn't support the lazy
interrupt disabling mechanism, so on 32-bit hard_irq_disable() is
simply local_irq_disable(). Add a definition for hard_irq_enable()
just for completeness.

This allows (KEXEC=y && PPC32=y) to build again. Broken since
d04c56f7.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

"extern inline" generates a warning with -Wmissing-prototypes and I'm
currently working on getting the kernel cleaned up for adding this to
the CFLAGS since it will help us to avoid a nasty class of runtime
errors.

If there are places that really need a forced inline, __always_inline
would be the correct solution.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This adds support for flash device descriptions to the OF device tree.
It's inspired by and partially borrowed from Sergei's patch "[RFC]
Adding MTD to device tree.patch".
Signed-off-by: NVitaly Wool <vwool@ru.mvista.com>
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This allows any secondary CPU thread also to become boot cpu for
POWER5.  The patch is required to solve kdump boot issue when the
kdump kernel is booted with parameter "maxcpus=1".  XICS init code
tries to match the current boot cpu id with "reg" property in each CPU
node in the device tree.  But CPU node is created only for primary
thread CPU ids and "reg" property only reflects primary CPU ids.  So
when a kernel is booted on a secondary cpu thread above condition will
never meet and the default distribution server is left as zero.  This
leads to route the interrupts to CPU 0, but which is not online at
this time.

We use ibm,ppc-interrupt-server#s to check for both primary and
secondary CPU ids.  Accordingly default distribution server value is
initialized from "ibm,ppc-interrupt-gserver#s" property.  We loop
through ibm,ppc-interrupt-gserver#s property to find the global
distribution server from the last entry that matches with boot cpuid.
Signed-off-by: NMohan Kumar M <mohan@in.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

At least the ide driver calls pcibus_to_node, which is not
defined when CONFIG_PCI is disabled. This adds a nop function
for the !PCI case.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

sys_mmap is declared in asm/syscalls.h
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

It's currently not possible to build the default zImage
target if PS3 is the only selected platform. This is
a hack to fall back to building the pseries style
zImage, so the build is successful. This will probably
change in the future, if someone writes a PS3 specific
boot wrapper.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

A few code paths need to check whether or not they are running
on the PS3's LV1 hypervisor before making hcalls. This introduces
a new firmware feature bit for this, FW_FEATURE_PS3_LV1.

Now when both PS3 and IBM_CELL_BLADE are enabled, but not PSERIES,
FW_FEATURE_PS3_LV1 and FW_FEATURE_LPAR get enabled at compile time,
which is a bug. The same problem can also happen for (PPC_ISERIES &&
!PPC_PSERIES && PPC_SOMETHING_ELSE). In order to solve this, I
introduce a new CONFIG_PPC_NATIVE option that is set when at least
one platform is selected that can run without a hypervisor and then
turns the firmware feature check into a run-time option.

The new cell oprofile support that was recently merged does not
work on hypervisor based platforms like the PS3, therefore make
it depend on PPC_CELL_NATIVE instead of PPC_CELL. This may change
if we get oprofile support for PS3.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

When renaming CONFIG_PS3 to CONFIG_PPC_PS3, a few occurrences have been
missed.

I also fixed up the alignment in arch/powerpc/platforms/Makefile.
Signed-off-by: NGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

It may be desireable to build a kernel for cell without
spufs, e.g. as the initial kboot kernel. This requires
that the SPU specific parts of the core dump and the xmon
code depend on CONFIG_SPU_BASE instead of CONFIG_PPC_CELL.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Currently, we only send a sigtrap if the current task is being ptraced.
This is somewhat inconsistant, and it breaks utrace support in fedora.
Removing the check should do the right thing in all cases.

Cc: Ulrich Weigand <ulrich.weigand@de.ibm.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

This changes the spu_create system call to return an error (-ENODEV) if
and isolated spu context is requested on hardware that doesn't support
isolated mode.

Tested on systemsim with and without isolation support
Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

This patch fixes a compile issue for the Efika platform recently
introduced by API changes.
Signed-off-by: NNicolas DET <nd@bplan-gmbh.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNicolas DET <nd@bplan-gmbh.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Change the oprofile_cpu_type in cputables.c to be ppc64/970MP.  Oprofile
needs to distinquish the MP from other 970 processors so it can add some
new counters specific to the 970MP.
Signed-off-by: NMike Wolf <mjw@us.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

In the common cell kernel, I want to have ps3 enabled
to find potential bugs at compile-time.
Also enable SPU disassembly in xmon.
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds a ps3_defconfig for the PS3 game console.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds a PS3 system bus driver.  This system bus is a virtual bus used to present
the PS3 system devices in the LDM.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds spu support for the PS3 platform.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds support for early access to the parameter data from the PS3 'Other OS'
flash memory area.  The parameter data mainly holds user preferences like
static ip address.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds some needed bits for a config option PS3_USE_LPAR_ADDR that disables
the PS3 lpar address translation mechanism.  This is a currently needed
workaround for limitations in the design of the generic cell spu support.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds routines to interface with the PS3 interrupt services.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds support for the PS3 repository.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds pagetable management routines for the PS3.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds the needed firmware feature bits for the PS3.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds the PS3 hvcalls.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

Adds the core platform support for the PS3 game console and other devices
using the PS3 hypervisor.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

This fixes the xmon support for the cell spu to be compatable with the split
spu platform code.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

This adds a platform specific spu management abstraction and the coresponding
routines to support the IBM Cell Blade.  It also removes the hypervisor only
resources that were included in struct spu.

Three new platform specific routines are introduced, spu_enumerate_spus(),
spu_create_spu() and spu_destroy_spu().  The underlying design uses a new
type, struct spu_management_ops, to hold function pointers that the platform
setup code is expected to initialize to instances appropriate to that platform.

For the IBM Cell Blade support, I put the hypervisor only resources that were
in struct spu into a platform specific data structure struct spu_pdata.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>

This adds an accessor routine virq_to_hw() to the
virq routines which hides the implementation details
of the virq to hwirq map.
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>