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24196 commits

Author SHA1 Message Date
Paolo Bonzini 4ea9296c07 reorganize pci-ids.txt
Some devices were missing, and we're using two PCI vendor ids.
This patch only adds devices that are already documented in hw/pci/pci.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-08 20:24:34 +02:00
Paolo Bonzini 28e7a65069 docs: move pci-ids.txt to docs/specs/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-08 20:24:34 +02:00
Anthony Liguori 560c30b1db Merge remote-tracking branch 'kraxel/usb.75' into staging
* kraxel/usb.75: (32 commits)
  uhci: stop using portio lists
  usbredir: Add support for buffered bulk input (v2)
  exynos4210: Add EHCI support
  usb/ehci: Add SysBus EHCI device for Exynos4210
  usb/ehci: Move capsbase and opregbase into SysBus EHCI class
  usb/ehci: Clean up SysBus and PCI EHCI split
  xhci: call set-address with dummy usbpacket
  usb-redir: Add debugging to bufpq save / restore
  usbredir: Add usbredir_init_endpoints() helper
  usbredir: Verify we have 32 bits bulk length cap when redirecting to xhci
  usbredir: Add ep_stopped USBDevice method
  usbredir: Add USBEP2I and I2USBEP helper macros
  usbredir: Add an usbredir_stop_ep helper function
  usb: Add an usb_device_ep_stopped USBDevice method
  usb: Fix usb_ep_find_packet_by_id
  hid: Change idle handling to use a timer
  uhci: Maximize how many frames we catch up when behind
  uhci: Limit amount of frames processed in one go
  uhci: Add a QH_VALID define
  uhci: Fix pending interrupts getting lost on migration
  ...

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-08 10:36:20 -06:00
Anthony Liguori c3dd94b129 Merge remote-tracking branch 'stefanha/net' into staging
* stefanha/net:
  rtl8139: preserve link state across device reset
  e1000: no need auto-negotiation if link was down
  net: clean up network at qemu process termination
  e1000: Discard oversized packets based on SBP|LPE

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-08 10:36:13 -06:00
Petar Jovanovic da1a4cef9e target-mips: Fix helper and tests for dot/cross-dot product instructions
Helper function for dpa_w_ph, dpax_w_ph, dps_w_ph and dpsx_w_ph incorrectly
defines halfword vector elements as unsigned values. This results in wrong
output which is not triggered in the tests as they also follow this logic.

Signed-off-by: Petar Jovanovic <petarj@mips.com>
Reviewed-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-01-08 11:58:43 +01:00
Stefan Weil e320d05a53 target-mips: Replace macros by inline functions
The macros RESTORE_ROUNDING_MODE and RESTORE_FLUSH_MODE silently used
variable env from their callers. Using inline functions with env passed
as a function argument is more transparent.

This modification was proposed by Peter Maydell.

Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-01-08 11:55:39 +01:00
Eric Johnson e1a4019cf1 target-mips: Allow DSP access to be disabled once enabled.
Clear the DSP hflags at the start of compute_hflags.  Otherwise access
is not properly disabled once enabled.

Signed-off-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-01-08 11:49:01 +01:00
Alexander Graf 314992b1a4 linux-user: fix mips 32-on-64 prealloc case
MIPS only supports 31 bits of virtual address space for user space, so let's
make sure we stay within that limit with our preallocated memory block.

This fixes the MIPS user space targets when executed without command line
option.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-01-08 11:48:39 +01:00
Gerd Hoffmann 89eb147c2c uhci: stop using portio lists
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-01-08 10:56:58 +01:00
Hans de Goede b2d1fe67d0 usbredir: Add support for buffered bulk input (v2)
Buffered bulk mode is intended for bulk *input* endpoints, where the data is
of a streaming nature (not part of a command-response protocol). These
endpoints' input buffer may overflow if data is not read quickly enough.
So in buffered bulk mode the usb-host takes care of the submitting and
re-submitting of bulk transfers.

Buffered bulk mode is necessary for reliable operation with the bulk in
endpoints of usb to serial convertors. Unfortunatelty buffered bulk input
mode will only work with certain devices, therefor this patch also adds a
usb-id table to enable it for devices which need it, while leaving the
bulk ep handling for other devices unmodified.

Note that the bumping of the required usbredir from 0.5.3 to 0.6 does
not mean that we will now need a newer usbredir release then qemu-1.3,
.pc files reporting 0.5.3 have only ever existed in usbredir builds directly
from git, so qemu-1.3 needs the 0.6 release too.

Changes in v2:
-Split of quirk handling into quirks.c

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2013-01-08 10:56:58 +01:00
Nickolai Zeldovich 7682e85807 readline: avoid memcpy() of overlapping regions
memcpy() for overlapping regions is undefined behavior; use memmove()
instead in readline_hist_add().

[Keep tab characters since surrounding code still uses them -- Stefan]

Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-08 10:00:26 +01:00
Michael S. Tsirkin f56a12475f vhost: backend masking support
Support backend guest notifier masking in vhost-net:
create eventfd at device init, when masked,
make vhost use that as eventfd instead of
sending an interrupt.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-07 19:42:23 +02:00
Michael S. Tsirkin 24f4fe345c vhost: set started flag while start is in progress
This makes it possible to use started flag for sanity checking
of callbacks that happen during start/stop.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-07 19:42:23 +02:00
Michael S. Tsirkin 1830b80ff2 virtio-net: set/clear vhost_started in reverse order
As vhost started is cleared last thing on stop,
set it first things on start. This makes it
possible to use vhost_started while start is in
progress which is used by follow-up patches.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-07 19:42:23 +02:00
Michael S. Tsirkin f1d0f15a6d virtio: backend virtqueue notifier masking
some backends (notably vhost) can mask events
at their source in a way that is more efficient
than masking through kvm.
Specifically
- masking in kvm uses rcu write side so it has high latency
- in kvm on unmask we always send an interrupt
masking at source does not have these issues.

Add such support in virtio.h and use in virtio-pci.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-07 19:42:23 +02:00
Michael S. Tsirkin 774345f981 virtio-pci: cache msix messages
Some guests mask a vector then unmask without changing it.
Store vectors to avoid kvm system calls in this case.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-07 19:42:23 +02:00
Michael S. Tsirkin 078bbb5040 kvm: add stub for update msi route
Will be used by virtio-pci.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-07 19:42:23 +02:00
Michael S. Tsirkin 4c93bfa9c9 msix: add api to access msix message
Will be used by virtio pci.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-07 19:42:22 +02:00
Michael S. Tsirkin 2d620f593d virtio: don't waste irqfds on control vqs
Pass nvqs to set_guest_notifiers. This makes it possible to
save on irqfds by not allocating one for the control vq
for virtio-net.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-07 19:42:22 +02:00
Samuel Seay 61993a6712 PPC: linux-user: Calculate context pointer explicitly
Peter Maydell recommended the change to be more proper. The result was tested
and shows coming up with the same proper value.

Signed-off-by: Samuel Seay <LightningTH@GMail.com>
[agraf: change subject]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:11 +01:00
Andreas Färber 1b7ce68fb4 target-ppc: Error out for -cpu host on unknown PVR
Previously we silently exited, with subclasses we got an opcode warning.
Instead, explicitly tell the user what's wrong.

An indication for this is -cpu ? showing "host" with an all-zero PVR.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:11 +01:00
Andreas Färber 2985b86b5c target-ppc: Slim conversion of model definitions to QOM subclasses
Since the model list is highly macrofied, keep ppc_def_t for now and
save a pointer to it in PowerPCCPUClass. This results in a flat list of
subclasses including aliases, to be refined later.

Move cpu_ppc_init() to translate_init.c and drop helper.c.
Long-term the idea is to turn translate_init.c into a standalone cpu.c.

Inline cpu_ppc_usable() into type registration.

Split cpu_ppc_register() in two by code movement into the initfn and
by turning the remaining part into a realizefn.
Move qemu_init_vcpu() call into the new realizefn and adapt
create_ppc_opcodes() to return an Error.

Change ppc_find_by_pvr() -> ppc_cpu_class_by_pvr().
Change ppc_find_by_name() -> ppc_cpu_class_by_name().

Turn -cpu host into its own subclass. This requires to move the
kvm_enabled() check in ppc_cpu_class_by_name() to avoid the class being
found via the normal name lookup in the !kvm_enabled() case.
Turn kvmppc_host_cpu_def() into the class_init and add an initfn that
asserts KVM is in fact enabled.

Implement -cpu ? and the QMP equivalent in terms of subclasses.
This newly exposes -cpu host to the user, ordered last for -cpu ?.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:11 +01:00
Alexander Graf 68c2dd7006 PPC: Bring EPR support closer to reality
We already used to support the external proxy facility of FSL MPICs,
but only implemented it halfway correctly.

This patch adds support for

  * dynamic enablement of the EPR facility
  * interrupt acknowledgement only when the interrupt is delivered

This way the implementation now is closer to real hardware.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:11 +01:00
Stuart Yoder 1a61a9ae61 PPC: KVM: set has-idle in guest device tree
On e500mc, the platform doesn't provide a way for the CPU to go idle.

To still not uselessly burn CPU time, expose an idle hypercall to the guest
if kvm supports it.

Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
[agraf: adjust for current code base, add patch description, fix non-kvm case]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:11 +01:00
Alexander Graf d4834ff9b7 kvm: Update kernel headers
Corresponding kvm.git hash: 18eb54cf4a

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:11 +01:00
Scott Wood 9f1d4b1d69 openpic: fix CTPR and de-assertion of interrupts
Properly implement level-triggered interrupts by withdrawing an
interrupt from the raised queue if the interrupt source de-asserts.
Also withdraw from the raised queue if the interrupt becomes masked.

When CTPR is written, check whether we need to raise or lower the
interrupt output.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:11 +01:00
Scott Wood a898a8fc96 openpic: move IACK to its own function
Besides making the code cleaner, we will need a separate way to access
IACK in order to implement EPR (external proxy) interrupt delivery.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:11 +01:00
Scott Wood 4417c73305 openpic: IRQ_check: search the queue a word at a time
Search the queue more efficiently by first looking for a non-zero word,
and then using the common bit-searching function to find the bit within
the word.  It would be even nicer if bitops_ffsl() could be hooked up
to the compiler intrinsic so that bit-searching instructions could be
used, but that's another matter.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:11 +01:00
Scott Wood 6c5e84c25f openpic: fix sense and priority bits
Previously, the sense and priority bits were masked off when writing
to IVPR, and all interrupts were treated as edge-triggered (despite
the existence of code for handling level-triggered interrupts).

Polarity is implemented only as storage.  We don't simulate the
bad effects that you'd get on real hardware if you set this incorrectly,
but at least the guest sees the right thing when it reads back the register.

Sense now controls level/edge on FSL external interrupts (and all
interrupts on non-FSL MPIC).  FSL internal interrupts do not have a sense
bit (reads as zero), but are level.  FSL timers and IPIs do not have
sense or polarity bits (read as zero), and are edge-triggered.  To
accommodate FSL internal interrupts, QEMU's internal notion of whether an
interrupt is level-triggered is separated from the IVPR bit.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood 65b9d0d565 openpic: add some bounds checking for IRQ numbers
The two checks with abort() guard against potential QEMU-internal
problems, but the EOI check stops the guest from causing updates to queue
position -1 and other havoc if it writes EOI with no interrupt in
service.

Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: remove hunk in code that didn't get applied yet]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood e69a17f65e openpic: use standard bitmap operations
Besides the private implementation being redundant, namespace collisions
prevented the use of other things in bitops.h.

Serialization does get a bit more awkward, unfortunately, since the
standard bitmap operations are "unsigned long" rather than "uint32_t",
though in exchange we will get faster queue lookups on 64-bit hosts once
we search a word at a time.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood 47f73749c6 Revert "openpic: Accelerate pending irq search"
This reverts commit a9bd83f4c65de0058659ede009fa1a241f379edd.

This counting approach is not robust against setting a bit that
was already set, or clearing a bit that was already clear.  Perhaps
that is considered a bug, but besides the lack of any documentation
for that restriction, it's a pretty unpleasant way for the problem
to manifest itself.

It could be made more robust by testing the current value of the
bit before changing the count, but a later patch speeds up IRQ_check
in all cases, not just when there's nothing pending.  Hopefully that
should be adequate to address performance concerns.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood 3c94378e2c openpic: always call IRQ_check from IRQ_get_next
Previously the code relied on the queue's "next" field getting
set to -1 sometime between an update to the bitmap, and the next
call to IRQ_get_next.  Sometimes this happened after the update.
Sometimes it happened before the check.  Sometimes it didn't happen
at all.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood 72c1da2ca7 openpic/fsl: critical interrupts ignore mask before v4.1
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: make bool :1]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood eb43842784 openpic: make ctpr signed
Other priorities are signed, so avoid comparisons between
signed and unsigned.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood 5e22c276de openpic: rework critical interrupt support
Critical interrupts on FSL MPIC are not supposed to pay
attention to priority, IACK, EOI, etc.  On the currently modeled
version it's not supposed to pay attention to the mask bit either.

Also reorganize to make it easier to implement newer FSL MPIC models,
which encode interrupt level information differently and support
mcheck as well as crit, and to reduce problems for later patches
in this set.

Still missing is the ability to lower the CINT signal to the core,
as IACK/EOI is not used.  This will come with general IRQ-source-driven
lowering in the next patch.

New state is added which is not serialized, but instead is recomputed
in openpic_load() by calling the appropriate write_IRQreg function.
This should have the side effect of causing the IRQ outputs to be
raised appropriately on load, which was missing.

The serialization format is altered by swapping ivpr and idr (we'd like
IDR to be restored before we run the IVPR logic), and moving interrupts
to the end (so that other state has been restored by the time we run the
IDR/IVPR logic.  Serialization for this driver is not yet in a state
where backwards compatibility is reasonable (assuming it works at all),
and the current serialization format was not built for extensibility.

Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: fix for current code state]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood be7c236fa2 openpic: make register names correspond better with hw docs
The base openpic specification doesn't provide abbreviated register
names, so it's somewhat understandable that the QEMU code made up
its own, except that most of the names that QEMU used didn't correspond
to the terminology used by any implementation I could find.

In some cases, like PCTP, the phrase "processor current task priority"
could be found in the openpic spec when describing the concept, but
the register itself was labelled "current task priority register"
and every implementation seems to use either CTPR or the full phrase.

In other cases, individual implementations disagree on what to call
the register.  The implementations I have documentation for are
Freescale, Raven (MCP750), and IBM.  The Raven docs tend to not use
abbreviations at all.  The IBM MPIC isn't implemented in QEMU.  Thus,
where there's disagreement I chose to use the Freescale abbreviations.

Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: rebase on current state of the code]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood a1bb73849f ppc/booke: fix crit/mcheck/debug exceptions
Book E does not play games with certain bits of xSRR1 being MSR save
bits and others being error status.  xSRR1 is the old MSR, period.
This was causing things like MSR[CE] to be lost, even in the saved
version, as soon as you take an exception.

rfci/rfdi/rfmci are fixed to pass the actual xSRR1 register contents,
rather than the register number.

Put FIXME comments on the hack that is "asrr0/1".  The whole point of
separate exception levels is so that you can, for example, take a machine
check or debug interrupt without corrupting critical-level operations.
The right xSRR0/1 set needs to be chosen based on CPU type flags.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:10 +01:00
Scott Wood e99fd8af63 openpic: lower interrupt when reading the MSI register
This will stop things from breaking once it's properly treated as a
level-triggered interrupt.  Note that it's the MPIC's MSI cascade
interrupts that are level-triggered; the individual MSIs are
edge-triggered.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:09 +01:00
Scott Wood 4c4f0e4801 openpic: fix debug prints
Fix various format errors when debug prints are enabled.  Also
cause error checking to happen even when debug prints are not
enabled, and consistently use 0x for hex output.

Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: adjust for more recent code base, prettify DPRINTF macro]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:09 +01:00
Samuel Seay beb526b121 PPC: fix segfault in signal handling code
Removed h2g() macro around the ka->_sa_handler due to the _sa_handler being a
guest memory address.

Changed the __put_user to put_user as it was attempting to put a value at the
stack address but the new address is a guest memory address, __put_user is
for host memory addresses.

Signed-off-by: Samuel Seay <LightningTH@GMail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[agraf: change subject line, reformat commit message]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:09 +01:00
Bharat Bhushan 88a78d9093 PPC: Reset qemu timers when guest reset
This patch install the timer reset handler. This will be called when
the guest is reset.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
[agraf: adjust for QOM'ification]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:09 +01:00
Alexander Graf af7e9e74c6 openpic: fix coding style issues
This patch fixes the following coding style violations:

  - structs have to be typedef and be CamelCase
  - if()s are always surrounded by curly braces

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:09 +01:00
Bharat Bhushan d56af005dc powerpc: linux header sync script includes epapr_hcalls.h
epapr_hcalls.h is now referenced by kvm_para.h. so this is needed for
QEMU to get compiled on powerpc.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:09 +01:00
Scott Wood c3203fa5b2 openpic: don't crash on a register access without a CPU context
If we access a register via the QEMU memory inspection commands (e.g.
"xp") rather than from guest code, we won't have a CPU context.
Gracefully fail to access the register in that case, rather than
crashing.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:09 +01:00
Scott Wood a26a7b3833 openpic: s/opp->nb_irqs -1/opp->nb_cpus - 1/
"opp->nb_irqs-1" would have been a minor coding style error,
but putting in one space but not the other makes it look
confusingly like a numeric literal "-1".

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:09 +01:00
Scott Wood 0d4046833b openpic: BRR1 is not a CPU-specific register.
It's in the address range that normally contains a magic redirection
to the CPU-specific region of the curretn CPU, but it isn't actually
a per-CPU register.  On real hardware BRR1 shows up only at 0x40000,
not at 0x60000 or other non-magic per-CPU areas.  Plus, this makes
it possible to read the register on the QEMU command line with "xp".

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:08 +01:00
Scott Wood 0fe04622c1 openpic: support large vectors on FSL mpic
Previously only the spurious vector was sized appropriately
to the openpic model.

Also, instances of "IPVP_VECTOR(opp->spve)" were replace with
just "opp->spve", as opp->spve is already just a vector and not
an IVPR.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:08 +01:00
Scott Wood c975330ec4 openpic: remove pcsr (CPU sensitivity register)
I could not find this register in any spec (FSL, IBM, or OpenPIC)
and the code doesn't do anything with it but initialize, save,
or restore it.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:08 +01:00
Scott Wood 71c6cacb24 openpic: symbolicize some magic numbers
Deefine symbolic names for some register bits, and use some that
have already been defined.

Also convert some register values from hex to decimal when it improves
readability.

IPVP_PRIORITY_MASK is corrected from (0x1F << 16) to (0xF << 16), in
conjunction with making wider use of the symbolic name.  I looked at
Freescale and IBM MPIC docs and at the base OpenPIC spec, and all three
had priority as 4 bits rather than 5.  Plus, the magic nubmer that is
being replaced with symbolic values treated the field as 4 bits wide.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-07 17:37:08 +01:00