Release skiboot-5.5.0-rc1 · open-power/skiboot

skiboot-5.5.0-rc1 was released on Tuesday March 28th 2017. It is the first
release candidate of skiboot 5.5, which will become the new stable release
of skiboot following the 5.4 release, first released November 11th 2016.

skiboot-5.5.0-rc1 contains all bug fixes as of :ref:skiboot-5.4.3
and :ref:skiboot-5.1.19 (the currently maintained stable releases).

For how the skiboot stable releases work, see :ref:stable-rules for details.

The current plan is to cut the final 5.5.0 by April 8th, with skiboot 5.5.0
being for all POWER8 and POWER9 platforms in op-build v1.16 (Due April 12th).
This is a short cycle as this release is mainly targetted towards POWER9
bringup efforts.

Following skiboot-5.5.0, we will move to a regular six week release cycle,
similar to op-build, but slightly offset to allow for a short stabilisation
period. Expected release dates and contents are tracked using GitHub milestone
and issues: https://github.com/open-power/skiboot/milestones

Over skiboot-5.4, we have the following changes:

New Platforms

SuperMicro's (SMC) P8DNU: An astbmc based POWER8 platform
Add a generic platform to help with bringup of new systems.
Four POWER9 based systems (NOTE: All POWER9 systems should be considered
for bringup use only at this point):
- Romulus
- Witherspoon (a POWER9 system with NVLink2 attached GPUs)
- Zaius (OpenCompute platform, also known as "Barreleye 2")
- ZZ (FSP based system)

New features

System reset IPI facility and Mambo implementation
Add an opal call :ref:OPAL_SIGNAL_SYSTEM_RESET which allows system reset
exceptions to be raised on other CPUs and act as an NMI IPI. There
is an initial simple Mambo implementation, but allowances are made
for a more complex hardware implementation.

The Mambo implementation is based on the RFC implementation for POWER8
hardware (see https://patchwork.ozlabs.org/patch/694794/) which we hope
makes it into a future release.

This implements an in-band NMI equivalent.
add CONTRIBUTING.md, ensuring that people new to the project have a one-stop
place to find out how to get started.
interrupts: Add optional name for OPAL interrupts

This adds the infrastructure for an interrupt source to provide
a name for an interrupt directed toward OPAL. Those names will
be put into an "opal-interrupts-names" property which is a
standard DT string list corresponding 1:1 with the "opal-interrupts"
property. PSI interrupts get names, and this is visible in Linux
through /proc/interrupts
platform: add OPAL_REBOOT_FULL_IPL reboot type

There may be circumstances in which a user wants to force a full IPL reboot
rather than using fast reboot. Add a new reboot type, OPAL_REBOOT_FULL_IPL,
that disables fast reboot. On platforms which don't support fast reboot,
this will be equivalent to a normal reboot.
phb3: Trick to allow control of the PCIe link width and speed

This implements a hook inside OPAL that catches 16 and 32 bit writes
to the link status register of the PHB.

It allows you to write a new speed or a new width, and OPAL will then
cause the PHB to renegociate.

Example:

First read the link status on PHB4: ::
```
setpci -s 0004:00:00.0 0x5a.w
a103
```
It's at x16 Gen3 speed (8GT/s)

bits 0x0ff0 are the width and 0x000f the speed. The width can be
1 to 16 and the speed 1 to 3 (2.5, 5 and 8GT/s)

Then try to bring it down to 1x Gen1 : ::
```
setpci -s 0004:00:00.0 0x5a.w=0xa011
```
Observe the result in the PHB: ::
```
/ # lspci -s 0004:00:00.0 -vv
0004:00:00.0 PCI bridge: IBM Device 03dc (prog-if 00 [Normal decode])
.../...
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk- DLActive+ BWMgmt- ABWMgmt+
```
And in the device: ::
```
/ # lspci -s 0004:01:00.0 -vv
.../...
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
```
core/init: Add hdat-map property to OPAL node.

Exports the HDAT heap to the OS. This allows the OS to view the HDAT heap
directly. This allows us to view the HDAT area without having to use
getmemproc.
Add a generic platform: If /bmc in device tree, attempt to init one
For the most part, this gets us somewhere on some OpenPOWER systems
before there's a platform file for that machine.

Useful in bringup only, and marked as such with scary looking log
messages.

Core

asm: Don't try to set LPCR:LPES1 on P8 and P9, the bit doesn't exist.
pci: Add a framework for quirks

In future we may want to be able to do fixups for specific PCI devices in
skiboot, so add a small framework for doing this.

This is not intended for the same purposes as quirks in the Linux kernel,
as the PCI devices that quirks can match for in skiboot are not properly
configured. This is intended to enable having a custom path to make
changes that don't directly interact with the PCI device, for example
adding device tree entries.
hw/slw: fix possible NULL dereference
slw: Print enabled stop states on boot
uart: Fix Linux pass-through policy, provide NVRAM override option
libc/stdio/vsnprintf.c: add explicit fallthrough, this silences a recent
(GCC 7.x) warning
init: print the FDT blob size in decimal
init: Print some more info before booting linux

The kernel command line from nvram and the stdout-path are
useful to know when debugging console related problems.
Makefile: Disable stack protector due to gcc problems

Depending on how it was built, gcc will use the canary from a global
(works for us) or from the TLS (doesn't work for us and accesses
random stuff instead).

Fixing that would be tricky. There are talks of adding a gcc option
to force use of globals, but in the meantime, disable the stack
protector.
Stop using 3-operand cmp[l][i] for latest binutils
Since a5721ba270, binutils does not support 3-operand cmp[l][i].
This adds (previously optional) parameter L.
buddy: Add a simple generic buddy allocator
stack: Don't recurse into __stack_chk_fail
Makefile: Use -ffixed-r13
We use r13 for our own stuff, make sure it's properly fixed
Always set ibm,occ-functional-state correctly
psi: fix the xive registers initialization on P8, which seems to be fine
for real HW but causes a lof of pain under qemu
slw: Set PSSCR value for idle states
Limit number of "Poller recursion detected" errors to display

In some error conditions, we could spiral out of control on this
and spend all of our time printing the exact same backtrace.

Limit it to 16 times, because 16 is a nice number.
slw: do SLW timer testing while holding xscom lock

We add some routines that let a caller get the xscom lock once and
then do a bunch of xscoms while holding it.
In some situations without this, it could take long enough to get
the xscom lock that the 1ms timeout would expire and we'd falsely
think the SLW timer didn't work when in fact it did.
wait_for_resource_loaded: don't needlessly sleep for 5ms
run pollers in cpu_process_local_jobs() if running job synchonously
fsp: Don't recurse pollers in ibm_fsp_terminate
chiptod: More hardening against -1 chip ID
interrupts: Rewrite/correct doc for opal_set/get_xive
cpu: Don't enable nap mode/PM mode on non-P8
platform: Call generic platform probe and init UART there
psi: Don't register more interrupts than the HW supports
psi: Add DT option to disable LPC interrupts

I2C and TPM

p8i2c: Use calculated poll_interval when booting OPAL
Otherwise we'd default to 2seconds (TIMER_POLL) during boot on
chips with a functional i2c interrupt, leading to slow i2c
during boot (or hitting timeouts instead).
i2c: Add i2c_run_req() to crank the state machine for a request
tpm_i2c_nuvoton: work out the polling time using mftb()
tpm_i2c_nuvoton: handle errors after reading the tpm fifo
tpm_i2c_nuvoton: cleanup variables in tpm_read_fifo()
tpm_i2c_nuvoton: handle errors after writting the tpm fifo
tpm_i2c_nuvoton: cleanup variables in tpm_write_fifo()
tpm_i2c_nuvoton: handle errors after writing sts.commandReady in step 5
tpm_i2c_nuvoton: handle errors after writing sts.go
tpm_i2c_nuvoton: handle errors after checking the tpm fifo status
tpm_i2c_nuvoton: return burst_count in tpm_read_burst_count()
tpm_i2c_nuvoton: isolate the code that handles the TPM_TIMEOUT_D timeout
tpm_i2c_nuvoton: handle errors after reading sts.commandReady
tpm_i2c_nuvoton: add tpm_status_read_byte()
tpm_i2c_nuvoton: add tpm_check_status()
tpm_i2c_nuvoton: rename defines to shorter names
tpm_i2c_interface: decouple rc from being done with i2c request
tpm_i2c_interface: set timeout before each request
i2c: Add nuvoton quirk, disallowing i2cdetect as it locks TPM

p8-i2c reset things manually in some error conditions
stb: create-container and wrap skiboot in Secure/Trusted Boot container

We produce UNSIGNED skiboot.lid.stb and skiboot.lid.xz.stb as build
artifacts.

These are suitable blobs for flashing onto Trusted Boot enabled op-build
builds WITH the secure boot jumpers ON (i.e. NOT in secure mode).
It's just enough of the Secure and Trusted Boot container format to
make Hostboot behave.

PCI

core/pci: Support SRIOV VFs

Currently, skiboot can't see SRIOV VFs. It introduces some troubles
as I can see: The device initialization logic (phb->ops->device_init())
isn't applied to VFs, meaning we have to maintain same and duplicated
mechanism in kernel for VFs only. It introduces difficulty to code
maintaining and prone to lose sychronization.

This was motivated by bug reported by Carol: The VF's Max Payload
Size (MPS) isn't matched with PF's on Mellanox's adapter even kernel
tried to make them same. It's caused by readonly PCIECAP_EXP_DEVCTL
register on VFs. The skiboot would be best place to emulate this bits
to eliminate the gap as I can see.

This supports SRIOV VFs. When the PF's SRIOV capability is populated,
the number of maximal VFs (struct pci_device) are instanciated, but
but not usable yet. In the mean while, PCI config register filter is
registered against PCIECAP_SRIOV_CTRL_VFE to capture the event of
enabling or disabling VFs. The VFs are initialized, put into the PF's
children list (pd->children), populate its PCI capabilities, and
register PCI config register filter against PCICAP_EXP_DEVCTL. The
filter's handler caches what is written to MPS field and returns
the cached value on read, to eliminate the gap mentioned as above.
core/pci: Avoid hreset after freset

Commit 5ac71c9 ("pci: Avoid hot resets at boot time") missed to
avoid hot reset after fundamental reset for PCIe common slots.

This fixes it.
core/pci: Enforce polling PCIe link in hot-add path

In surprise hot-add path, the power state isn't changed on hardware.
Instead, we set the cached power state (@slot->power_state) and
return OPAL_SUCCESS. The upper layer starts the PCI probing immediately
when receiving OPAL_SUCCESS. However, the PCIe link behind the PCI
slot is likely down. Nothing will be probed from the PCI slot even
we do have PCI adpater connected to the slot.

This fixes the issue by returning OPAL_ASYNC_COMPLETION to force
upper layer to poll the PCIe link before probing the PCI devices
behind the slot in surprise and managed hot-add paths.
hw/phb3: fix error handling in complete reset
During a complete reset, when we get a timeout waiting for pending
transaction in state PHB3_STATE_CRESET_WAIT_CQ, we mark the PHB as
permanently broken.

Set the state to PHB3_STATE_FENCED so that the kernel can retry the
complete reset.
phb3: Lock the PHB on set_xive callbacks

p8dnu platform

astbmc/p8dnu: Enable PCI slot's power supply on PEX9733 in hot-add path
astbmc/p8dnu: Enable PCI slot's power supply on PEX8718 in hot-add path
core/pci: Mark broken PDC on slots without surprise hotplug capability

We has to support surprise hotplug on PCI slots that don't support
it on hardware. So we're fully utilizing the PCIe link state change
event to detect the events (hot-remove and hot-add). The PDC (Presence
Detection Change) event isn't reliable for the purpose. For example,
PEX8718 on superMicro's machines.

This adds another PCI slot property "ibm,slot-broken-pdc" in the
device-tree, to indicate the PDC isn't reliable on those (software
claimed) surprise pluggable slots.
core/pci: Fix PCIe slot's presence

According to PCIe spec, the presence bit is hardcoded to 1 if PCIe
switch downstream port doesn't support slot capability. The register
used for the check in pcie_slot_get_presence_state() is wrong. It
should be PCIe capability register instead of PCIe slot capability
register. Otherwise, we always have present bit on the PCI topology.
The issue is found on Supermicro's p8dtu2u machine: ::

lspci -t

-+-[0022:00]---00.0-[01-08]----00.0-[02-08]--+-01.0-[03]----00.0
| -02.0-[04-08]--

cat /sys/bus/pci/slots/S002204/adapter

1

lspci -vvs 0022:02:02.0

lspci -vvs 0022:02:02.0

0022:02:02.0 PCI bridge: PLX Technology, Inc. PEX 8718 16-Lane,
5-Port PCI Express Gen 3 (8.0 GT/s) Switch (rev ab) (prog-if 00 [Normal decode])
:
Capabilities: [68] Express (v2) Downstream Port (Slot+), MSI 00
:
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
Changed: MRL- PresDet- LinkState-

This fixes the issue by checking the correct register (PCIe capability).
Also, the register's value is cached in advance as we did for slot and
link capability.
core/pci: More reliable way to update PCI slot power state

The power control bit (SLOT_CTL, offset: PCIe cap + 0x18) isn't
reliable enough to reflect the PCI slot's power state. Instead,
the power indication bits are more reliable comparatively. This
leads to mismatch between the cached power state and PCI slot's
presence state, resulting in the hotplug driver in kernel refuses
to unplug the devices properly on the request. The issue was
found on below NVMe card on "supermicro,p8dtu2u" machine. We don't
have this issue on the integrated PLX 8718 switch. ::

lspci

0022:01:00.0 PCI bridge: PLX Technology, Inc. PEX 9733 33-lane,
9-port PCI Express Gen 3 (8.0 GT/s) Switch (rev aa)
0022:02:01.0 PCI bridge: PLX Technology, Inc. PEX 9733 33-lane,
9-port PCI Express Gen 3 (8.0 GT/s) Switch (rev aa)
0022:02:04.0 PCI bridge: PLX Technology, Inc. PEX 9733 33-lane,
9-port PCI Express Gen 3 (8.0 GT/s) Switch (rev aa)
0022:02:05.0 PCI bridge: PLX Technology, Inc. PEX 9733 33-lane,
9-port PCI Express Gen 3 (8.0 GT/s) Switch (rev aa)
0022:02:06.0 PCI bridge: PLX Technology, Inc. PEX 9733 33-lane,
9-port PCI Express Gen 3 (8.0 GT/s) Switch (rev aa)
0022:02:07.0 PCI bridge: PLX Technology, Inc. PEX 9733 33-lane,
9-port PCI Express Gen 3 (8.0 GT/s) Switch (rev aa)
0022:17:00.0 Non-Volatile memory controller: Device 19e5:0123 (rev 45)

This updates the cached PCI slot's power state using the power
indication bits instead of power control bit, to fix above issue.

Utilities

opal-prd: Direct systemd to always restart opal-prd
Always restart the opal-prd daemon, irrespective of why it stopped.
external/ffspart: Simple C program to be able to make an FFS partition
getscom: Add chip info for P9.
gard: Fix make dist target
pflash/libflash: arch_flash_arm: Don't assume mtd labels are short

libffs

libffs: Understand how to create FFS partition TOCs and entries.

BMC Based systems

platforms/astbmc: Support PCI slots for palmetto
habanero/slottable: Remove Network Mezz(2, 0) from PHB1.
BMC/PCI: Check slot tables against detected devices
On BMC machines, we have slot tables of built in PHBs, slots and devices
that are physically present in the system (such as the BMC itself). We
can use these tables to check what we detected against what should
be in the system and throw an error if they differ.

We have seen this occur a couple of times while still booting, giving the
user just an empty petitboot screen and not much else to go on. This
patch helps in that we get a skiboot error message, and at some point
in the future when we pump them up to the OS we could get a big friendly
error message telling you you're having a bad day.
pci/quirk: Populate device tree for AST2400 VGA

Adding these properties enables the kernel to function in the same way
that it would if it could no longer access BMC configuration registers
through a backdoor, which may become the default in future.

The comments describe how isolating the host from the BMC could be
achieved in skiboot, assuming all kernels that the system boots
support this. Isolating the BMC and the host from each other is
important if they are owned by different parties; for example, a cloud
provider renting machines "bare metal".
astbmc/pnor: Use mbox-flash for flash accesses

If the BMC is MBOX protocol aware, request flash reads/writes over the
MBOX regs. This inits the blocklevel for pnor access with mbox-flash.
ast: Account for differences between 2400 vs 2500
platform: set default bmc_platform
The bmc_platform pointer is set to NULL by default and on non-AMI BMC
platforms. As a result a few places in hw/ipmi/ipmi-sel.c will blindly
dereference a NULL pointer.

POWER9

external: Update xscom utils for type 1 indirect accesses
xscom: Harden indirect writes
xscom: Add POWER9 scom reset
homer : Enable HOMER region reservation for POWER9
slw: Define stop idle states for P9 DD1
slw: Fix parsing of supported STOP states
slw: only enable supported STOP states
dts: add support for p9 cores
asm: Add POWER9 case to init_shared_sprs

For now, setup the HID and HMEER. We'll add more as we get
good default values from HW.
xive/psi/lpc: Handle proper clearing of LPC SerIRQ latch on POWER9 DD1
lpc: Mark the power9 LPC bus as compatible with power8
Fix typo in PIR mask for POWER9. Fixes booting multi-chip.
vpd: add vpd_valid() to check keyword VPD blobs

Adds a function to check whether a blob is a valid IBM ASCII keyword
VPD blob. This allows us to recognise when we do and do not have a VPD
blob and act accordingly.
core/cpu.c: Use a device-tree node to detect nest mmu presence
The nest mmu address scom was hardcoded which could lead to boot
failure on POWER9 systems without a nest mmu. For example Mambo
doesn't model the nest mmu which results in failure when
calling opal_nmmu_set_ptcr() during kernel load.
psi: Fix P9 BAR setup on multi-chips

PHB4:

phb4: Fix TVE encoding for start address
phb4: Always assign powerbus BARs

HostBoot configure them with weird values that confuse us, instead
let's just own the assignment. This is temporary, I will centralize
memory map management next but this gets us going.
phb4: Fix endian issue with link control2/status2 registers
Fixes training at larger than PCIe Gen1 speeds.
phb4: Add ability to log config space access
Useful for debugging
phb4: Change debug prints
Currently we print "PHB4" and mean either "PHB version 4" or "PHB
number 4" which can be quite confusing.
phb4: Fix config space enable bits on DD1
phb4: Fix location of EEH enable bits
phb4: Fix setting of max link speed
phb4: Updated inits as of PHB4 spec 0.52

HDAT fixes:

hdat: Parse BMC nodes much earlier

This moves the parsing of the BMC and LPC details to the start of the
HDAT parsing. This allows us to enable the Skiboot log console earlier
so we can get debug output while parsing the rest of the HDAT.
astbmc: Don't do P8 PSI or DT fixups on P9

Previously the HDAT format was only ever used with IBM hardware so it
would store vital product data (VPD) blobs in the IBM ASCII Keyword VPD
format. With P9 HDAT is used on OpenPower machines which use Industry
Standard DIMMs that provide their product data through a "Serial Present
Detect" EEPROM mounted on the DIMM.

The SPD blob has a different format and is exported in the device-tree
under the "spd" property rather than the "ibm,vpd" property. This patch
adds support for recognising these blobs and placing them in the
appropriate DT property.
hdat: Add __packed to all HDAT structures and workaround HB reserve

Some HDAT structures aren't properly aligned. We were using __packed
on some but not others and got at least one wrong (HB reserve). This
adds it everywhere to avoid such problems.

However this then triggers another problem where HB gives us a
crazy range (0.256M) to reserve with no label, which triggers an
assertion failure later on in mem_regions.c.

So also add a test to skip any region starting at 0 until we can
undertand that better and have it fixed one way or another.
hdat: Ignore broken memory reserves

Ignore HDAT memory reserves > 512MB. These are considered bogus and
workaround known HDAT bugs.
hdat: Add BMC device-tree node for P9 OpenPOWER systems
hdat: Fix interrupt & device_type of UART node

The interrupt should use a standard "interrupts" property. The UART
node also need a device_type="serial" property for historical reasons
otherwise Linux won't pick it up.
parse and export STOP levels
add new sppcrd_chip_info fields
add radix-AP-encodings
stop using proc_int_line in favor of pir
rename add_icp() to add_xics_icp()
Add support for PHB4
create XIVE nodes under each xscom node
Add P9 compatible property
Parse hostboot memory reservations from HDAT
Add new fields to IPL params structure and update sys family for p9.
Fix ibm,pa-features for all CPU types
Fix XSCOM nodes for P9
Remove deprecated 'ibm, mem-interleave-scope' from DT on POWER9
Grab system model name from HDAT when available
Grab vendor information from HDAT when available
SPIRA-H/S changes for P9
Add BMC and LPC IOPATH support
handle ISDIMM SPD blobs
make HDIF_child() print more useful errors
Add PSI HB xscom details
Add new fields to proc_init_data structure
Add processor version check for hs service ntuple
add_iplparams_serial - Validate HDIF_get_iarray_size() return value

XIVE:

The list of XIVE fixes and updates is extensive. Below is only a portion of
the changes that have gone into skiboot 5.5.0-rc1 for the new XIVE hardware
that is present in POWER9:

xive: Enable backlog on queues
xive: Use for_each_present_cpu() for setting up XIVE
xive: Fix logic in opal_xive_get_xirr()
xive: Properly initialize new VP and EQ structures
xive: Improve/fix EOI of LSIs
xive: Add FIXME comments about mask/umask races
xive: Fix memory barrier in opal_xive_get_xirr()
xive: Don't try to find a target EQ for prio 0xff
xive: Bump table sizes in direct mode
xive: Properly register escalation interrupts
xive: Split the OPAL irq flags from the internal ones
xive: Don't touch ESB masks unless masking/unmasking
xive: Fix xive_get_ir_targetting()
xive: Cleanup escalation PQ on queue change
xive: Add any chip for allocating interrupts
xive: Add chip_id to get_vp_info
xive: Add opal_xive_get/set_vp_info
xive: Add VP alloc/free OPAL functions
xive: Workaround for bad DD1 checker
xive: Add more checks for exploitation mode
xive: Add support for EOIs via OPAL
xive/phb4: Work around broken LSI control on P9 DD1
xive: Forward interrupt names callback
xive: Export opal_xive_reset() arguments in OPAL API
xive: Add interrupt allocator
xive: Implement xive_reset
xive: Don't assert if xive_get_vp() fails
xive: Expose exploitation mode DT properties
xive: Use a constant for max# of chips
xive: Keep track of which interrupts were ever enabled
In order to speed up xive reset
xive: Implement internal VP allocator
xive: Add xive_get/set_queue_info
xive: Add helpers to encode and decode VP numbers
xive: Add API to donate pages in indirect mode
xive: Add asynchronous cache updates and update irq targetting
xive: Split xive_provision_cpu() and use cache watch for VP
xive: Add cache scrub to push watch updates to memory
xive: Mark XIVE owned EQs with a specific flag
xive: Use an allocator for EQDs
xive: Break assumption that block ID == chip ID
xive/phb4: Handle bad ESB offsets in PHB4 DD1
xive: Implement get/set_irq_config APIs
xive: Rework xive_set_eq_info() to store all info even when masking
xive: Implement cache watch and use it for EQs
xive: Add locking to some API calls
xive: Add opal_xive_get_irq_info()
xive: Add CPU node "interrupts" properties representing the IPIs
xive: Add basic opal_xive_reset() call and exploitation mode
xive: Add support for escalation interrupts
xive: OPAL API update
xive: Add some dump facility for debugging
xive: Document exploitation mode
(Pretty much work in progress)
xive: Indirect table entries must have top bits "type" set
xive: Remove unused field and clarify comment
xive: Provide a way to override some IPI sources
xive: Add helper to retrieve an IPI trigger port
xive: Fix IPI EOI logic in opal_xive_eoi()
xive: Don't try to EOI a masked source
xive: Fix comments in xive_source_set_xive()
xive: Fix comments in xive_get_ive()
xive: Configure forwarding ports
xive: Fix mangling of interrupt server# in opal_get/set_xive()
xive: Fix interrupt number mangling

Fast-reboot

fast-reboot: creset PHBs on fast reboot
On fast reboot, perform a creset of all PHBs. This ensures that any PHBs
that are fenced will be working after the reboot.
fast-reboot: Enable fast reboot with CAPI adapters in CAPI mode
CAPI mode is disabled as part of OPAL_SYNC_HOST_REBOOT.
opal/fast-reboot: set fw_progress sensor status with IPMI_FW_PCI_INIT.

CAPI

hmi: Print CAPP FIR information when handling CAPP malfunction alerts

FSP based systems

hw/fsp: Do not queue SP and SPCN class messages during reset/reload
This could cause soft lockups if FSP reset reload was done while in OPAL
During FSP R/R, the FSP is inaccessible and will lose state. Messages to the
FSP are generally queued for sending later.

Tests

core/test/run-trace: Reduce number of samples when running under valgrind
This reduces 'make check' run time by ~10 seconds on my laptop,
and just the run-trace test itself takes 15 seconds less (under valgrind).
test/sreset_world: Kind of like Hello World, but from the SRESET vector.
A regression test for the mambo implementation of OPAL_SIGNAL_SYSTEM_RESET.
nvram-format: Fix endian issues
NVRAM formats are always BE, so let's use the sparse annotation to catch
any issues (and correct said issues).

On LE platforms, the test was erroneously passing as with building the
nvram-format code on LE we were produces an incorrect NVRAM image.
test/hello_world: use P9MAMBO to differentiate from P8
hdata_to_dt: Specify PVR on command line
hdata/test: Add DTS output for the test cases
hdata/test: strip blobs from the DT output
mambo: add mprintf()

mprintf() is printf(), but it goes straight to the mambo console. This
allows it to be independent of Skiboot's actual console infrastructure
so it can be used for debugging the console drivers and for debugging
code that runs before the console is setup.
generate-fwts-olog: add support for parsing prerror()
Add bitmap test
The worst test suite ever
mambo_utils: add ascii output to hexdump
mambo_utils: add p_str [limit]
mambo_utils: make p return a value
hello_world: print out full path of missing MAMBO_BINARY
print-stb-container: Fix build on centos7
Travis-ci improvements:
- install expect on ubuntu 12.04, disable qemu on 16.04/latest
- build and test more on centos7
- hello_world: run p9 mambo tests
- install systemsim-p8 on centos7
- install systemsim-p8 on centos6
- install systemsim-p9
- enable fedora25
- always pull new docker image
- add fedora rawhide
Add fwts annotation for duplicate DT node entries.

Reference bug: open-power/op-build#751
external/fwts: Add 'last-tag' to FWTS olog output
This isn't so useful at the moment, but this will make cleaning out
crufty old error definitions much easier.
external/fwts: Add FWTS olog merge script
A script to merge olog error definitions from multiple skiboot versions
into a single olog JSON file. Will prompt when conflicting patterns are
found to update the pattern, or add both.
mambo: fake NVRAM support
mambo: Add Fake NVRAM driver
external/mambo: add shortcut to print all GPRs

Contributors

Processed 363 csets from 28 developers.
A total of 18105 lines added, 16499 removed (delta 1606)

Developers with the most changesets
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

========================== === =======
Developer # %
========================== === =======
Benjamin Herrenschmidt 138 (38.0%)
Stewart Smith 56 (15.4%)
Oliver O'Halloran 47 (12.9%)
Michael Neuling 18 (5.0%)
Gavin Shan 15 (4.1%)
Claudio Carvalho 14 (3.9%)
Vasant Hegde 11 (3.0%)
Cyril Bur 11 (3.0%)
Andrew Donnellan 11 (3.0%)
Ananth N Mavinakayanahalli 5 (1.4%)
Cédric Le Goater 5 (1.4%)
Pridhiviraj Paidipeddi 5 (1.4%)
Shilpasri G Bhat 4 (1.1%)
Nicholas Piggin 4 (1.1%)
Russell Currey 3 (0.8%)
Alistair Popple 2 (0.6%)
Jack Miller 2 (0.6%)
Chris Smart 2 (0.6%)
Matt Brown 1 (0.3%)
Michael Ellerman 1 (0.3%)
Frederic Barrat 1 (0.3%)
Hank Chang 1 (0.3%)
Willie Liauw 1 (0.3%)
Werner Fischer 1 (0.3%)
Jeremy Kerr 1 (0.3%)
Patrick Williams 1 (0.3%)
Joel Stanley 1 (0.3%)
Alexey Kardashevskiy 1 (0.3%)
========================== === =======

Developers with the most changed lines
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

=========================== ===== =======
Developer # %
=========================== ===== =======
Oliver O'Halloran 17961 (56.7%)
Benjamin Herrenschmidt 5509 (17.4%)
Cyril Bur 2801 (8.8%)
Stewart Smith 1649 (5.2%)
Gavin Shan 653 (2.1%)
Claudio Carvalho 489 (1.5%)
Willie Liauw 361 (1.1%)
Ananth N Mavinakayanahalli 340 (1.1%)
Andrew Donnellan 315 (1.0%)
Michael Neuling 240 (0.8%)
Shilpasri G Bhat 228 (0.7%)
Nicholas Piggin 219 (0.7%)
Vasant Hegde 207 (0.7%)
Russell Currey 158 (0.5%)
Jack Miller 127 (0.4%)
Cédric Le Goater 126 (0.4%)
Chris Smart 95 (0.3%)
Hank Chang 56 (0.2%)
Pridhiviraj Paidipeddi 47 (0.1%)
Alistair Popple 39 (0.1%)
Matt Brown 29 (0.1%)
Michael Ellerman 3 (0.0%)
Alexey Kardashevskiy 2 (0.0%)
Frederic Barrat 1 (0.0%)
Werner Fischer 1 (0.0%)
Jeremy Kerr 1 (0.0%)
Patrick Williams 1 (0.0%)
Joel Stanley 1 (0.0%)
=========================== ===== =======

Developers with the most lines removed
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

=========================== ===== =======
Developer # %
=========================== ===== =======
Oliver O'Halloran 8810 (53.4%)
Ananth N Mavinakayanahalli 98 (0.6%)
Alistair Popple 9 (0.1%)
Michael Ellerman 3 (0.0%)
Werner Fischer 1 (0.0%)
=========================== ===== =======

Developers with the most signoffs
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Total 322

======================== ===== =======
Developer # %
======================== ===== =======
Stewart Smith 307 (95.3%)
Michael Neuling 6 (1.9%)
Oliver O'Halloran 3 (0.9%)
Benjamin Herrenschmidt 2 (0.6%)
Vaidyanathan Srinivasan 1 (0.3%)
Hank Chang 1 (0.3%)
Jack Miller 1 (0.3%)
Gavin Shan 1 (0.3%)
======================== ===== =======

Developers with the most reviews
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Total: 45

======================== ===== =======
Developer # %
======================== ===== =======
Vasant Hegde 10 (22.2%)
Andrew Donnellan 9 (20.0%)
Russell Currey 6 (13.3%)
Cédric Le Goater 5 (11.1%)
Oliver O'Halloran 4 (8.9%)
Gavin Shan 3 (6.7%)
Vaidyanathan Srinivasan 2 (4.4%)
Alistair Popple 2 (4.4%)
Frederic Barrat 2 (4.4%)
Mahesh Salgaonkar 1 (2.2%)
Cyril Bur 1 (2.2%)
======================== ===== =======

Developers with the most test credits
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Total 11

======================== ===== =======
Developer # %
======================== ===== =======
Willie Liauw 4 (36.4%)
Claudio Carvalho 3 (27.3%)
Gavin Shan 1 (9.1%)
Michael Neuling 1 (9.1%)
Pridhiviraj Paidipeddi 1 (9.1%)
Chris Smart 1 (9.1%)
======================== ===== =======

Developers who gave the most tested-by credits
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Total 11

========================== ===== =======
Developer # %
========================== ===== =======
Gavin Shan 4 (36.4%)
Stewart Smith 4 (36.4%)
Chris Smart 1 (9.1%)
Oliver O'Halloran 1 (9.1%)
Ananth N Mavinakayanahalli 1 (9.1%)
========================== ===== =======

Developers with the most report credits
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Total 7

========================== === =======
Developer # %
========================== === =======
Hank Chang 4 (57.1%)
Guilherme G. Piccoli 1 (14.3%)
Colin Ian King 1 (14.3%)
Pradipta Ghosh 1 (14.3%)
========================== === =======

Developers who gave the most report credits
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Total 7

========================== === =======
Developer # %
========================== === =======
Gavin Shan 5 (71.4%)
Andrew Donnellan 1 (14.3%)
Jeremy Kerr 1 (14.3%)
========================== === =======

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

skiboot-5.5.0-rc1