Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNathan Lynch <ntl@pobox.com>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The maple PCI configuration space write methods read the written
location immediately after the write is performed, presumably in order
to flush the write.  However, configuration space writes are not
allowed to be posted, making these reads gratuitous.  Furthermore,
this behavior potentially causes us to violate the PCI PM spec when
changing between e.g. D0 and D3 states, because a delay of up to 10ms
may be required before the OS accesses configuration space after the
write which initiates the transition.  It definitely causes a system
hang for me with a Broadcom 5721 PCIE network adapter, which is fixed
by this change.

Therefore this removes the gratuitous reads from u3_agp_write_config,
u3_ht_write_config, and u4_pcie_write_config.
Signed-off-by: NNathan Lynch <ntl@pobox.com>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

In order to compile drivers as modules that uses some of the
DCR functions, we need to export the symbols.  Example, EMAC
driver and other drivers that are under development use these
functions.
Signed-off-by: NMurali Iyer <mniyer@us.ibm.com>
Acked-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Eliminate the use of error_log_cnt as a global var shared across
different directories.  Pass it as a parameter instead.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>

----

Respin of earlier patch, with the CONFIG_PSERIES junk removed from the
header file.

 arch/powerpc/kernel/nvram_64.c         |   10 +++++-----
 arch/powerpc/platforms/pseries/rtasd.c |    7 ++++---
 include/asm-powerpc/nvram.h            |    6 ++++--
 3 files changed, 13 insertions(+), 10 deletions(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Get rid of the jumbled usage of the no_logging flag. Its use
spans several directories, and is incorrectly/misleadingly
documented. Instead, two changes:
1) nvram will accept error log as soon as its ready.
2) logging to nvram stops on the first fatal error reported.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/kernel/nvram_64.c         |    8 --------
 arch/powerpc/platforms/pseries/rtasd.c |   14 ++++++--------
 2 files changed, 6 insertions(+), 16 deletions(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Forward declarations serve no purpose in this file.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>

----

 arch/powerpc/kernel/nvram_64.c |    5 -----
 1 file changed, 5 deletions(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Simplify rtasd initialization code; this also fixes a buglet,
where the /proc entries weren't being cleaned up in case of
failure.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/platforms/pseries/rtasd.c |   53 +++++++++++----------------------
 1 file changed, 19 insertions(+), 34 deletions(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The rtas_token() call does the same thing as this hand-rolled code.
This makes the code easier to read.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/platforms/pseries/rtasd.c |   13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

We don't need to look up the rtas event token once per
cpu per second.  This avoids some misc device-tree lookups
and string ops and so provides some minor performance
improvement.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>

----
Revised commit-log message.

 arch/powerpc/platforms/pseries/rtasd.c |   15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This fixes some interrrupt -> interrupt typos.
Signed-off-by: NGabriel Craciunescu <nix.or.die@googlemail.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This patch contains a handful of small fixes to allow the Ebony's
flash to be exposed as MTD devices via the physmap_of driver.
Specifically it:
	- Makes a small addition to the device tree and zImage wrapper
to record the correct address for the flash in the device tree based
on the board switches as reported via an FPGA register.
	- Prohibits building the old hard-coded "Ebony" flash map on
arch/powerpc kernels, in favour of using physmap_of's device tree
based approach.
	- Enables MTD and physmap_of in the Ebony defconfig.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This removes several duplicate includes from arch/powerpc/.
Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NJon Loeliger <jdl@freescale.com>
Acked-by: NMark A. Greer <mgreer@mvista.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NJon Loeliger <jdl@freescale.com>
Acked-by: NVitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Signed-off-by: NJon Loeliger <jdl@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Gather bridge-specific data on EEH events.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>
----
 arch/powerpc/platforms/pseries/eeh.c |   27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The EEH code needs to ignore PCI bridges; sort-of.  It was ignoring
them in the wrong place, and thus failing to set up the
PCI_DN(dn)->pcidev pointer.  Imprudent dereferencing of this pointer
would lead to a crash on cards with bridges.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/platforms/pseries/eeh_cache.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Print return code to print message.  Also fix whitespace.
Signed-off-by: NLinas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/platforms/pseries/eeh.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>

There are some variables and functions that we should place in init
section.  And this patch changes some '__devinit' to '__init', because
the device is platform device and not hot-pluggable.
Signed-off-by: NKou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Fix following warning:
WARNING: vmlinux.o(.text+0x45fd4): Section mismatch: reference to .init.text:.early_serial_txx9_setup (between '.txx9_serial_init' and '.txx9_serial_config')
Signed-off-by: NKou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Fix following warnings:
WARNING: vmlinux.o(.text+0x44ad0): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config')
WARNING: vmlinux.o(.text+0x44dd8): Section mismatch: reference to .init.text:.free_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config')
Signed-off-by: NKou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

A similar fix to netfilter from Eric Dumazet inspired me to
look around a bit by using some grep/sed stuff as looking for
this kind of bugs seemed easy to automate.  This is one of them
I found where it looks like this semicolon is not valid.
Signed-off-by: NIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

Fix probing of PS3 storage devices: in the success case, we should set
`error' to zero, not `result'.

Without this patch no storage devices are found.
Signed-off-by: NGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

ppc64 does the unusual thing of using #include on a compiler-generated
assembly file (lparmap.s) from an assembly source file (head_64.S).
This runs afoul of my recent patch to pass -gdwarf2 to the assembler
under CONFIG_DEBUG_INFO.  This patch avoids the problem by disabling
DWARF generation (-g0) when producing lparmap.s.
Signed-off-by: NRoland McGrath <roland@redhat.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

The 440 family of processors don't have a tlbie instruction.  So, we
implement TLB invalidates by explicitly searching the TLB with tlbsx.,
then clobbering the relevant entry, if any.  Unfortunately the PID for
the search needs to be stored in the MMUCR register, which is also
used by the TLB miss handler.  Interrupts were enabled in _tlbie(), so
an interrupt between loading the MMUCR and the tlbsx could cause
incorrect search results, and thus a failure to invalide TLB entries
which needed to be invalidated.

This fixes the problem in both arch/ppc and arch/powerpc by inhibiting
interrupts (even critical and debug interrupts) across the relevant
instructions.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Acked-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

AFAICT, nobody is using ft_ordered(), and it causes a build warning
to be generated.  This patch cleans that up by removing the function
and the commented-out code that calls it.
Signed-off-by: NBecky Bruce <becky.bruce@freescale.com>
Acked-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

At present, spu_create with an invalid neighbo(u)r will return -ENOSYS,
not -EBADF, but only when spufs.o is built as a module.

This change adds the appropriate errno, making the behaviour the same
as the built-in case.
Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
Acked-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

My "slices" address space management code that was added in the 2.6.22
implementation of get_unmapped_area() doesn't properly check that the
size is a multiple of the requested page size.  This allows userland to
create VMAs that aren't a multiple of the huge page size with hugetlbfs
(since hugetlbfs entirely relies on get_unmapped_area() to do that
checking) which leads to a kernel BUG() when such areas are torn down.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

powerpc has a couple of bugs in the usage of dma_masks that tend to
break when drivers explicitly try to set a 32-bit mask for example.

First, the code that generates the pci devices from the OF device-tree
doesn't initialize the mask properly, then our implementation of
set_dma_mask() was trying to validate the -previous- mask value, not the
one passed in as an argument.

This fixes these problems.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

WARNING: vmlinux.o(.text+0x8174): Section mismatch: reference to .init.text:.prom_init (between '.__boot_from_prom' and '.__after_prom_start')
WARNING: vmlinux.o(.text+0x8498): Section mismatch: reference to .init.text:.early_setup (between '.start_here_multiplatform' and '.start_here_common')
WARNING: vmlinux.o(.text+0x8514): Section mismatch: reference to .init.text:.setup_system (between '.start_here_common' and 'system_call_common')
WARNING: vmlinux.o(.text+0x8530): Section mismatch: reference to .init.text:.start_kernel (between '.start_here_common' and 'system_call_common')
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Acked-by: NGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This reverts commit 3baee955.

That commit was a mistake from the start; I added mdio type to the
bus scan list early on in my ucc_geth migrate to phylib development,
which is just pure wrong (the ucc_geth_mii driver creates the mii
bus and the PHY layer handles PHY enumeration without translation).

This follows on from commit 77926826:

 Revert "[POWERPC] Don't complain if size-cells == 0 in prom_parse()"

which was basically trying to hide a symptom of the original mistake
this revert fixes.
Signed-off-by: NKim Phillips <kim.phillips@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>