This patch removes all self references and fixes references to files
in the now defunct arch/ppc64 tree.  I think this accomplises
everything wanted, though there might be a few references I missed.
Signed-off-by: NJon Mason <jdmason@us.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Currently we have some stuff in firmware.h and kernel/firmware.c that is
#ifdef CONFIG_PPC_PSERIES. Move it all into platforms/pseries.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Clean up fw_feature_init in platforms/pseries/setup.c. Clean up white space
and replace the while loop with a for loop - which seems clearer to me.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The e500 core reference manual indicates that isync is required
after mtmsr(DE bit) and mtspr DBCR0.  Add isyncs to make the code
conform to the spec.
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Ran arch/powerpc/platforms/85xx through Lindent
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Rename mpc85xx.c to misc.c to match the pattern established by the
8349 port - consistency is a good thing.  Also run Lindent on the
file to clean it up.
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Cut-and-paste from the old platform code in arch/ppc resulted in
arch/powerpc/platforms/85xx/mpc85xx_ads.c having way too many
header files included.  Clean this up.
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Updated FP unavailable exception to refer to the correct
function in traps.c. head_booke.h was using the old name, KernelFP,
instead of kernel_fp_unavailable_exception.
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Acked-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Registers system call for the powerpc architecture.
Signed-off-by: NJanak Desai <janak@us.ibm.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

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: NPaul Mackerras <paulus@samba.org>

it's int __iomem *, not int * __iomem...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

extern in function definition is an odd thing..
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

drive_info is used only by hd.c and that happens under #ifdef __i386__.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Ran arch/powerpc/platforms/83xx through Lindent
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Moved some code around so its usable by more systems than just
the MPC834x SYS.
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Setup the platform devices needed by the Freescale EHCI USB
host controllers based on a flat device tree
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Do not check for offset, it is always set.
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

LMB_ALLOC_ANYWHERE doesn't need to be part of the API, it's only used in
lmb.c - so move it out of the header file.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Currently most callers of lmb_alloc() don't check if it worked or not, if it
ever does weird bad things will probably happen. The few callers who do check
just panic or BUG_ON.

So make lmb_alloc() panic internally, to catch bugs at the source. The few
callers who did check the result no longer need to.

The only caller that did anything interesting with the return result was
careful_allocation(). For it we create __lmb_alloc_base() which _doesn't_ panic
automatically, a little messy, but passable.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Cleaned up fsl_soc.c based on comments from Olof Johansson.  Ran through
Lindent, and split gfar_mdio init into its own function.
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

remove extern declarations of pmac_newworld
move pmac_newworld to bss
if there is any "interrupt-controller" device, then it is newworld.
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NGrant C. Likely <grant.likely@secretlab.ca>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

When a cpu is hotplug-onlined, if we don't set per_cpu(last_jiffy) to
something sane, timer_interrupt will execute its while loop for every
tick missed since the cpu was last online (or since the system was
booted, if we're adding a new cpu).  This can cause weird hangs, ssh
sessions dropping, and we can even go xmon if we take a global IPI at
the wrong time.
Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

We call unregister_vpa but we don't check to see if the hypervisor
supports this.
Signed-off-by: NMichael Neuling <mikey@neuling.org>
Acked-by: NAnton Blanchard <anton@samba.org>
--
 arch/powerpc/platforms/pseries/setup.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Since 404849bb we've been using
LOAD_REG_ADDRBASE, which uses the toc pointer, in decrementer_iSeries_masked.

This can explode if we take the decrementer interrupt while we're in a module,
because the toc pointer in r2 will be the module's toc pointer.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The code to mark a page as icache dirty (so that it will later be
icache-dcache flushed when we try to execute from it) is duplicated in
three places: flush_dcache_page() does this marking and nothing else,
but clear_user_page() and copy_user_page() duplicate it, since those
functions make the page icache dirty themselves.

This patch makes those other functions call flush_dcache_page()
instead, so the logic's all in one place.  This will make life less
confusing if we ever need to tweak the details of the the lazy icache
flush mechanism.

 arch/powerpc/mm/mem.c |   14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)
Signed-off-by: NDavid Gibson <dwg@au1.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Checking a pointer for NULL before passing it to kfree is pointless, kfree
does its own NULL checking of input.
Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

arch/powerpc/kernel/udbg_16550.c: In function `udbg_init_maple_realmode':
arch/powerpc/kernel/udbg_16550.c:162: warning: assignment from incompatible pointer type
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

setup_peg2 must do some refcounting.
of_get_pci_address may need to drop the node

	Pegasos l2cr : L2 cache was not active, activating
	PCI bus 0 controlled by pci at 80000000
	Badness in kref_get at /home/olaf/kernel/olh/ppc64/linux-2.6.16-rc2-olh/lib/kref.c:32
	Call Trace:
	[C037BD00] [C0007934] show_stack+0x5c/0x184 (unreliable)
	[C037BD30] [C000E068] program_check_exception+0x184/0x584
	[C037BD90] [C000F5F0] ret_from_except_full+0x0/0x4c
	--- Exception: 700 at kref_get+0xc/0x24
	    LR = of_node_get+0x24/0x3c
	[C037BE50] [C004FD94] __pte_alloc_kernel+0x64/0x80 (unreliable)
	[C037BE70] [C000CA18] of_get_parent+0x34/0x58
	[C037BE90] [C0009B18] of_get_address+0x24/0x174
	[C037BED0] [C000A108] of_address_to_resource+0x24/0x68
	[C037BF00] [C038B128] chrp_find_bridges+0x114/0x470
	[C037BF90] [C038AE48] chrp_setup_arch+0x1fc/0x32c
	[C037BFB0] [C03849B0] setup_arch+0x144/0x188
	[C037BFD0] [C037C45C] start_kernel+0x34/0x1a8
	[C037BFF0] [000037A0] 0x37a0
	Badness in kref_get at /home/olaf/kernel/olh/ppc64/linux-2.6.16-rc2-olh/lib/kref.c:32
	Call Trace:
	[C037BC90] [C0007934] show_stack+0x5c/0x184 (unreliable)
	[C037BCC0] [C000E068] program_check_exception+0x184/0x584
	[C037BD20] [C000F5F0] ret_from_except_full+0x0/0x4c
	--- Exception: 700 at kref_get+0xc/0x24
	    LR = of_node_get+0x24/0x3c
	[C037BDE0] [00000000] 0x0 (unreliable)
	[C037BE00] [C000CA18] of_get_parent+0x34/0x58
	[C037BE20] [C0009CE8] of_translate_address+0x2c/0x2fc
	[C037BEA0] [C0009FE8] __of_address_to_resource+0x30/0xc4
	[C037BED0] [C000A130] of_address_to_resource+0x4c/0x68
	[C037BF00] [C038B128] chrp_find_bridges+0x114/0x470
	[C037BF90] [C038AE48] chrp_setup_arch+0x1fc/0x32c
	[C037BFB0] [C03849B0] setup_arch+0x144/0x188
	[C037BFD0] [C037C45C] start_kernel+0x34/0x1a8
	[C037BFF0] [000037A0] 0x37a0
	PCI bus 0 controlled by pci at c0000000
	Top of RAM: 0x10000000, Total RAM: 0x10000000
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

remove pointer/integer confusion
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Use generic_calibrate_decr to restore missing clock: speed in /proc/cpuinfo
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

remove pointer/integer confusion
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

It's possible for prom_init to allocate the flat device tree inside the
kdump crash kernel region. If this happens, when we load the kdump kernel we
overwrite the flattened device tree, which is bad.

We could make prom_init try and avoid allocating inside the crash kernel
region, but then we run into issues if the crash kernel region uses all the
space inside the RMO. The easiest solution is to move the flat device tree
once we're running in the kernel.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

It turns out that we can't stop the watchdog from
triggering here.  If we touch the timer (which just uses the current jiffie
value) before we enable interrupts, it does nothing because jiffies
are not mass-updated until after we enable interrupts.  If we touch the
timer after we enable interrupts, its too late because the softlockup
watchdog will already have triggered.  The touch_softlockup_watchdog
call removed below does nothing.
Signed-off-by: NDave Boutcher <sleddog@us.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

We need to prod everyone here since this is the only CPU that is
guaranteed to be running after the ibm,suspend-me RTAS call returns.
Signed-off-by: NDave Boutcher <sleddog@us.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Correctly return the status from the RTAS call.  rtas_call expects
to return the status as a return value.
Signed-off-by: NDave Boutcher <sleddog@us.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

arch/powerpc/kernel/rtas.c is getting hvcall.h via spinlock.h, but when we're
building for UP we don't include spinlock.h.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>