| Commit message (Collapse) | Author | Age |
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: (42 commits)
PCI: Change PCI subsystem MAINTAINER
PCI: pci-iommu-iotlb-flushing-speedup
PCI: pci_setup_bridge() mustn't be __devinit
PCI: pci_bus_size_cardbus() mustn't be __devinit
PCI: pci_scan_device() mustn't be __devinit
PCI: pci_alloc_child_bus() mustn't be __devinit
PCI: replace remaining __FUNCTION__ occurrences
PCI: Hotplug: fakephp: Return success, not ENODEV, when bus rescan is triggered
PCI: Hotplug: Fix leaks in IBM Hot Plug Controller Driver - ibmphp_init_devno()
PCI: clean up resource alignment management
PCI: aerdrv_acpi.c: remove unneeded NULL check
PCI: Update VIA CX700 quirk
PCI: Expose PCI VPD through sysfs
PCI: iommu: iotlb flushing
PCI: simplify quirk debug output
PCI: iova RB tree setup tweak
PCI: parisc: use generic pci_enable_resources()
PCI: ppc: use generic pci_enable_resources()
PCI: powerpc: use generic pci_enable_resources()
PCI: ia64: use generic pci_enable_resources()
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Use the generic pci_enable_resources() instead of the arch-specific code.
The generic version is functionally equivalent, but uses dev_printk.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This lets us check if the device is really added to the driver core or
not, which is what we need when walking some of the bus lists. The flag
is there in anticipation of getting rid of the other PCI device list,
which is what we used to check in this situation.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (202 commits)
[POWERPC] Fix compile breakage for 64-bit UP configs
[POWERPC] Define copy_siginfo_from_user32
[POWERPC] Add compat handler for PTRACE_GETSIGINFO
[POWERPC] i2c: Fix build breakage introduced by OF helpers
[POWERPC] Optimize fls64() on 64-bit processors
[POWERPC] irqtrace support for 64-bit powerpc
[POWERPC] Stacktrace support for lockdep
[POWERPC] Move stackframe definitions to common header
[POWERPC] Fix device-tree locking vs. interrupts
[POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const
[POWERPC] Remove unused __max_memory variable
[POWERPC] Simplify xics direct/lpar irq_host setup
[POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ()
[POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade()
[POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c
[POWERPC] Use asm-generic/bitops/find.h in bitops.h
[POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup
[POWERPC] 85xx: Fix the size of qe muram for MPC8568E
[POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier.
[POWERPC] 86xx: mark functions static, other minor cleanups
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Define the copy_siginfo_from_user32 entry point for powerpc, so
that generic CONFIG_COMPAT code can call it. We already had the
code rolled into compat_sys_rt_sigqueueinfo, this just moves it
out into the canonical function that other arch's define.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Current versions of gdb require a working implementation of
PTRACE_GETSIGINFO for proper watchpoint support. Since struct siginfo
contains pointers it must be converted when passed to a 32-bit debugger.
Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This adds the low level irq tracing hooks to the powerpc architecture
needed to enable full lockdep functionality.
This is partly based on Johannes Berg's initial version. I removed
the asm trampoline that isn't needed (thus improving performance) and
modified all sorts of bits and pieces, reworking most of the assembly,
etc...
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This adds stacktrace support for powerpc, which will be needed for
lockdep.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This moves various definitions used all over the place to parse stack
frames to ptrace.h so only one definition is needed.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Lockdep found out that we can occasionally take the device-tree
lock for reading from softirq time (from rtas_token called
by the rtas real time clock code called by the NTP code),
while we take it occasionally for writing without masking
interrupts. The combination of those two can thus deadlock.
While some of those cases of interrupt read lock could be fixed
(such as caching the RTAS tokens) I figured that taking the
lock for writing is so rare (device-tree modification) that we
may as well penalize that case and allow reading from interrupts.
Thus, this turns all the writers to take the lock with irqs
masked to avoid the situation.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Remove the __max_memory variable, as it is not referenced anywhere
in the tree besides some code in arch/ppc.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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The xics code currently has a direct and lpar variant of
xics_host_map, the only difference being which irq_chip they use. If
we remember which irq_chip we're using we can combine these two
routines. That also allows us to have a single irq_host_ops instead
of two.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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pseries_mpic_init_IRQ() implements the same logic as the xics code did to
find the i8259 cascade irq. Now that we've pulled that logic out into
pseries_setup_i8259_cascade() we can use it in the mpic code.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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pseries_setup_i8259_cascade()
Remove the xics references from xics_setup_8259_cascade(), and merge the
good bits from the almost identical logic in pseries_mpic_init_IRQ().
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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The code in xics.c to setup the i8259 cascaded irq handler is not really
xics specific, so move it into setup.c - we will clean this up further in
a subsequent patch.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc
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Currently USB Host isn't functional on the MPC8315E boards, for two
reasons as described below.
MPC8315 Reference Manual says:
"The USB DR unit must have the same clock ratio as the encryption core
unit, unless one of them has its clock disabled."
The encryption core also drives I2C clock, so it is enabled and is equal
to 01. That means USBDRCM should be 01 here.
Plus, according to MPC8315E-RDB schematics, USB unit consumes CLK_IN
clock from the 24.00MHz oscillator, which means we must adjust REFSEL
bits as well.
p.s.
Idially we should rework whole 83xx/usb.c code, in two steps:
1. Move SCCR code to the U-Boot;
2. Implement fsl,usb-clock property in the device tree, so usb.c could
decide what clock exactly to use on per-board basis.
Though, today we're not in a hurry since there is just one 8315e board
out there.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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MPC8568E has 64K byte MURAM, so the size should be 0x10000, not 0xc000.
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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As suggested by Timur Tabi, we match on the old compat node ID for one
version and warn accordingly. If we don't do this, we plunge people who
try to use an old DTB into silent boot death with no clear indication of
what the problem is.
This patch should be removed at the beginning of the 2.6.27 dev cycle.
It is only meant to ease the transition in the short term.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Cleanups as suggested by Stephen Rothwell and Dale Farnsworth, which
incudes marking a bunch of functions static and add a vendor prefix to
the compat node check for uniqueness.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The rheap allocation function, rh_alloc, could call kmalloc with GFP_KERNEL.
This can sleep, which means you couldn't hold a spinlock while called rh_alloc.
Change all kmalloc calls to use GFP_ATOMIC so that it won't sleep. This is
safe because only small blocks are allocated.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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* remove #cpus from mpc8544ds.dts (not used anywhere else)
* remove memreserve from mpc8568mds.dts (not needed)
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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arch/powerpc/platforms/85xx/mpc85xx_ads.c: In function ‘init_ioports’:
arch/powerpc/platforms/85xx/mpc85xx_ads.c:168: warning: initialization discards qualifiers from pointer target type
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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This adds in the device tree source for the SBC8641D, based
largely on the mpc8641_hpcn.dts. The biggest differences are
the lack of a complex IRQ mapping (since no Uli/i8259 cascade)
and the different layout of devices on the localbus node.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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This adds a sample defconfig for the Wind River SBC8641D
board, with SMP, PCI and NFS root enabled.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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This adds support for the Wind River SBC8641D board, based
largely on the mpc86xx_hpcn support. The biggest difference is
the lack of the Uli and the i8259 cascade, which simplifies things.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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1. Detect (and bail out on) more conditions that violate the
assumptions of the setup code -- we assume in such cases that the device
tree is correct and reflects what the firmware did.
2. The inbound memory mask calculation was wrong.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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This is needed to probe nor and nand flashes on the localbus.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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global_dbcr0 needs to be a per cpu set of save areas instead of a single
global on all processors.
Also, we switch to using DBCR0_IDM to determine if the user space app is
being debugged as its a more consistent way. In the future we should
support features like hardware breakpoint and watchpoints which will
have DBCR0_IDM set but not necessarily DBCR0_IC (single step).
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The kconfig entry can go away once arch/ppc and references to the config in
drivers are removed.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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qe_get_brg_clk() will be used by the fsl_gtm routines.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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qe_muram_offset is the reverse of the qe_muram_addr, will be
used for the Freescale QE USB Host Controller driver.
This patch also moves qe_muram_addr into the qe.h header, plus
adds __iomem hints to use with sparse.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Freescale UPM can be used to adjust localbus timings or to generate
orbitrary, pre-programmed "patterns" on the external Localbus signals.
This patch implements few routines so drivers could work with UPMs in
safe and generic manner.
So far there is just one user of these routines: Freescale UPM NAND
driver.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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- get rid of `model = "UCC"' in the ucc nodes
It isn't used anywhere, so remove it. If we'll ever need something
like this, we'll use compatible property instead.
- replace last occurrences of device-id with cell-index.
Drivers are modified for backward compatibility's sake.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Similarly to what is done for PQ1-based platforms, this patch resets the
PQ2 Communication Processor Module in cpm2_reset() when early debugging is
not enabled. This helps avoiding conflicts when the boot loader configured
the CPM in an unexpected way.
Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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This patch modifies the Embedded Planet EP8248E device tree to reference the
SMC paramater RAM base register instead of the parameter RAM allocated by the
boot loader.
The cpm_uart driver will allocate parameter RAM itself, making the serial port
initialisation independent of the boot loader.
The patch adds the parameter RAM allocated by the boot loader in the CPM muram
node, making it available to the kernel.
Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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This patch relocates the buffer descriptors and the SMC parameter RAM at the
end of the first CPM muram chunk, as described in the device tree. This allows
device trees to stop excluding SMC parameter ram allocated by the boot loader
from the CPM muram node.
Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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This patch adds a new generic device tree processing function that retrieves
virtual reg addresses from the device tree to the bootwrapper code. It also
updates the bootwrapper code to use the new function.
dt_get_virtual_reg() retrieves the virtual reg addresses from the
"virtual-reg" property. If the property can't be found, it uses the "reg"
property and walks the tree to translate it to absolute addresses.
Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Add the device tree node for the DMA engine on 8544, publish
the device and enable the driver in the defconfig.
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Board specific defconfigs are useful, however with the ability to do
multi-board defconfigs they aren't needed in the top level configs directory
Move the 83xx/85xx board specific defconfigs to individual directories under
arch/powerpc/configs.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The architecture allows for "Book-E" style debug interrupts to either go
to critial interrupts of their own debug interrupt level. To allow for
a dynamic kernel to support machines of either type we want to be able to
compile in the interrupt handling code for both exception levels.
Towards this goal we renamed the debug handling macros to specify the
interrupt level in their name (DEBUG_CRIT_EXCEPTION/DebugCrit and
DEBUG_DEBUG_EXCEPTION/DebugDebug).
Additionally, on the Freescale Book-e parts we expanded the exception
stacks to cover the maximum case of needing three exception stacks (normal,
machine check and debug).
There is some kernel text space optimization to be gained if a kernel is
configured for a specific Freescale implementation but we aren't handling
that now to allow for the single kernel image support.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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At present, ppu-gdb can't trace spu infomation with coredump generated
by the kernel. While the core dumps notes have correct contents, they
have the wrong names, as the file descriptors used to generate the note
names are off-by-one. An application that opens a SPE context as fd 3,
the current core dump code will generate notes like:
SPU/4/mem
SPU/4/regs
etc.
This confuses GDB, which knows it is looking for SPE context 3 (from
parsing the spu_context_run system call arguments), and cannot find
any notes that match context 3.
This change corrects the file descriptor counting, to only increment
the fd until after we've written the note name.
Signed-off-by: Gerhard Stenzel <stenzel@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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During the context save process, we currently save the MFC command
channel after purging the MFC queues. This causes a systemsim warning,
as the command channel may be in an unknown state after the purge.
This change does the save before purging the MFC queues.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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