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2018-04-03doc: Document ibm,heartbeat-msStewart Smith1-0/+21
and by 'document', I mean 'gather a few extra minor bits of breadcrumbs of clues as to what, when and why this thing exists'. Signed-off-by: Stewart Smith <stewart@linux.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2018-03-01doc/device-tree: Add OpenCAPI device tree bindingsAndrew Donnellan1-0/+69
Suggested-by: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2018-03-01doc/device-tree: Add PCI bindings stubAndrew Donnellan1-0/+68
Add a page for PCI device tree bindings. Right now it's just an example of a PHB as seen on a POWER9 Zaius, and it could do with some extra commentary. Suggested-by: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2018-02-21dt: add /cpus/ibm, powerpc-cpu-features device tree bindingsNicholas Piggin3-0/+454
This is a new CPU feature advertising interface that is fine-grained, extensible, aware of privilege levels, and gives control of features to all levels of the stack (firmware, hypervisor, and OS). The design and binding specification is described in detail in doc/. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [stewart: fix maybe-uninitialized warning from older GCC, doc cleanup] Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-12-18doc: update libstb documentation with POWER9 changesClaudio Carvalho2-32/+33
POWER9 changes reflected in the libstb: - bumped ibm,secureboot node to v2 - added ibm,cvc node - hash-algo superseded by hw-key-hash-size Signed-off-by: Claudio Carvalho <cclaudio@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-12-18hdata/tpmrel.c: add ibm, cvc device tree nodeClaudio Carvalho1-0/+47
In P9, the Container Verification Code is stored in a hostboot reserved memory and the list of provided CVC services is stored in the TPMREL_IDATA_HASH_VERIF_OFFSETS idata array. Each CVC service has an offset and version. This adds the ibm,cvc device tree node and its documentation. Signed-off-by: Claudio Carvalho <cclaudio@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-12-18hdata: Parse SPD dataVasant Hegde1-0/+24
Parse SPD data and populate device tree. list of properites parsing from SPD: ----------------------------------- [root@ltc-wspoon dimm@d00f]# lsprop . memory-id 0000000c (12) <-- DIMM type product-version 00000032 (50) <-- Module Revision Code device_type "memory-dimm-ddr4" serial-number 15d9acb6 (366587062) status "okay" size 00004000 (16384) phandle 000000bd (189) ibm,loc-code "UOPWR.0000000-Node0-DIMM7" part-number "36ASF2G72PZ-2G6B2 " reg 0000d007 (53255) name "dimm" manufacturer-id 0000802c (32812) <-- Vendor ID, we can get vendor name from this ID Also update documentation. Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-11-30Add documentation for ibm, firmware-versions device tree nodeStewart Smith1-0/+139
Reviewed-by: Reza Arbab <arbab@us.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com> Reviewed-by: Samuel Mendoza-Jonas <sam@mendozajonas.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-10-15doc: Update VPD, ECID documentationVasant Hegde1-4/+6
Recently we added `ecid`, `wafer-id` and `wafer-location` properties under xscom node. Lets document these properties. Also update VPD documentation. Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-09-04vas: Update documentation for chip-idSukadev Bhattiprolu1-2/+4
Update the device-tree documentation to include a note about the 'ibm,chip-id' field in the platform device node for VAS. While here, remove some trailing spaces. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-30hw/npu2.c: Add ibm, nvlink-speed device-tree propertyAlistair Popple1-1/+6
NVLink2 links can support multiple different speeds. However the device driver has no way of determining which speed was programmed so pass it down as a device tree property. Signed-off-by: Alistair Popple <alistair@popple.id.au> Acked-by: Reza Arbab <arbab@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-11sensor-groups : occ: Add 'ops' DT propertyShilpasri G Bhat1-7/+12
Add new device-tree property 'ops' to define different operations supported on each sensor-group. Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-01doc: RST syntax fixesStewart Smith6-22/+31
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-01NX: Describe device-tree changes for P9 NX compression enginesHaren Myneni1-4/+33
Describe device-tree entries needed for 842 and gzip compression engines on P9 NX. Signed-off-by: Haren Myneni <haren@us.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-08-01vas: Create MMIO device tree nodeSukadev Bhattiprolu1-0/+28
Create a device tree node for VAS and add properties that Linux will need to configure/use VAS. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-07-28sensors: occ: Add support to clear sensor groupsShilpasri G Bhat1-0/+40
Adds a generic API to clear sensor groups. OCC inband sensor groups such as CSM, Profiler and Job Scheduler can be cleared using this API. It will clear the min/max of all sensors belonging to OCC sensor groups. Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-07-28psr: occ: Add support to change power-shifting-ratioShilpasri G Bhat1-0/+53
Add support to set the CPU-GPU power shifting ratio which is used by the OCC power capping algorithm. PSR value of 100 takes all power away from CPU first and a PSR value of 0 caps GPU first. Documentation enhanced by Stewart Smith. Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-07-28powercap: occ: Add a generic powercap frameworkShilpasri G Bhat1-0/+48
This patch adds a generic powercap framework and exports OCC powercap sensors using which system powercap can be set inband through OPAL-OCC command-response interface. Documentation for powercap enhanced by Stewart Smith. Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-07-13numa/associativity: Add a new level of NUMA for GPU'sBalbir Singh1-1/+1
Today we have an issue where the NUMA nodes corresponding to GPU's have the same affinity/distance as normal memory nodes. Our reference-points today supports two levels [0x4, 0x4] for normal systems and [0x4, 0x3] for Power8E systems. This patch adds a new level [0x4, X, 0x2] and uses node-id as at all levels for the GPU. Cc: Reza Arbab <arbab@linux.vnet.ibm.com> Cc: Alistair Popple <alistair@popple.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Balbir Singh <bsingharora@gmail.com> Reviewed-by: Alistair Popple <alistair@popple.id.au> Acked-by: Reza Arbab <arbab@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-06-27skiboot/doc: Add devicetree binding document for IMCMadhavan Srinivasan1-0/+72
Add a device tree binding documentation for the In Memory Collection counter infrastructure. Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-05-31occ: Fix Pstate ordering for P9Shilpasri G Bhat2-10/+48
In P9 the pstate values are positive. They are continuous set of unsigned integers [0 to +N] where Pmax is 0 and Pmin is N. The linear ordering of pstates for P9 has changed compared to P8. P8 has neagtive pstate values advertised as [0 to -N] where Pmax is 0 and Pmin is -N. This patch adds helper routines to abstract pstate comparison with pmax and adds sanity pstate limit checks. This patch also fixes pstate arithmetic by using labs(). Suggested-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-05-02Documentation minor updates prior to OpenPOWER Foundation PDF generation.Jeff Scheel1-0/+4
Signed-off-by: Jeff Scheel <scheel@us.ibm.com> [stewart@linux.vnet.ibm.com: fix TODO item, capitalization] Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-03-30Introduce NPU2 supportAlistair Popple1-1/+26
NVLink2 is a new feature introduced on POWER9 systems. It is an evolution of of the NVLink1 feature included in POWER8+ systems but adds several new features including support for GPU address translation using the Nest MMU and cache coherence. Similar to NVLink1 the functionality is exposed to the OS as a series of virtual PCIe devices. However the actual hardware interfaces are significantly different which limits the amount of common code that can be shared between implementations in the firmware. This patch adds basic hardware initialisation and exposure of the virtual NVLink2 PCIe devices to the running OS. Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-12-08doc/sensors: be explicit about the encoding of sensor ID/handle not being ABIStewart Smith1-1/+2
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-12-08sensor: add a family field in the handlerCédric Le Goater1-3/+6
Currently, we are hijacking the last bit of the resource field of the sensor handler to differentiate the sensor families and route the opal_sensor_read() call to the appropriate component. Let's reserve the last 3bits and provide an API to set the sensor family for current use and future use. This gives us a maximum of 8 families and 32 resource classes. The FSP uses 15, so we should be fine for a while. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-10-31doc: Document path of /ibm,opal/diagnostics being ABIStewart Smith1-0/+3
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-10-28doc: link OPAL_HANDLE_INTERRUPT docs to ibm,opal DTStewart Smith1-0/+2
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-10-28doc: device-tree snippets should be dts code-blocksStewart Smith12-114/+165
This gets us syntax highlighting of device tree snippets. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-10-28doc: use RST references where appropriateStewart Smith5-3/+13
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-10-28Change .txt to .rst for correctnessNageswara R Sastry2-2/+2
This patch changes .txt to .rst for correctness of the documentation files, path to the documentation files Signed-off-by: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-10-24Fix typosNageswara R Sastry1-1/+1
doc/device-tree/tpm.rst changed firwmare to firmware libstb/stb.h added missing functional parameter Signed-off-by: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-10-05doc/device-tree: add tpm.rstClaudio Carvalho1-0/+45
This adds a documentation for the tpm device tree node. Signed-off-by: Claudio Carvalho <cclaudio@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-10-05doc/device-tree: add ibm, secureboot.rstClaudio Carvalho1-0/+58
This adds a documentation for the ibm,secureboot device tree node. Signed-off-by: Claudio Carvalho <cclaudio@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-11lpc: Add routing support for SerIRQsBenjamin Herrenschmidt1-2/+2
We can route them to any of 4 PSI interrupts. We use the device-tree to determine the default routing Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-11psi: On p9, create an interrupt-map for routing PSI interruptsBenjamin Herrenschmidt1-1/+27
This will provide the global IRQ numbers for all 16 PSI inputs (though we don't really care about 0 here). We can then express them in the device-tree as relative to the PSI bridge. Among others, that allows us to express the external interrupt and the LPC interrupt using a fixed numbering scheme. The example device-tree is updated to route them all to the LPC0 input which corresponds to what the LPC code does at the moment. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-11platform: Add BT to Generic platformBenjamin Herrenschmidt1-0/+6
Instantiate if if it's in the device-tree... Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-11lpc: Add P9 LPC interrupts supportBenjamin Herrenschmidt1-0/+1
We currently don't exploit the new MUX that allow to spread them around different PSI interrupts, they all go to LPC#0 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-11psi: Add P9 supportBenjamin Herrenschmidt1-0/+5
This reworks interrupt handling a bit and adds support for XIVE based interrupts and the new sources available on POWER9. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-02doc/device-tree/ibm, opal: fix ReStructured Text syntaxStewart Smith8-68/+85
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-02doc/device-tree/ibm, opal: rename .txt to .rstStewart Smith7-0/+0
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-02doc/device-tree: fix ReStructured Text syntaxStewart Smith5-59/+69
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-02doc/device-tree/: rename .txt to .rstStewart Smith5-0/+0
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-02Add skeleton device-tree/index.rstStewart Smith1-0/+11
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-07-20Document changes to how firmware versions are passed to host on P9Stewart Smith1-1/+3
We won't do mi-version/ml-version, but we will always have version. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-07-20device-tree: Only advertise ibm, opal-v3 (not v2) on POWER9 and aboveStewart Smith1-0/+1
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-07-08doc/device-tree/examples/power9-phb4.dts: Enable a couple of extra PHBsStewart Smith1-2/+2
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-07-08lpc: Example DT update for P9 LPC busBenjamin Herrenschmidt1-0/+36
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-07-08power9: Add example device tree for phb4Benjamin Herrenschmidt1-0/+156
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-06-20Fix for typosFrederic Bonnard1-1/+1
While reviewing the Debian packaging, codespell found those. Most proposed fixes are based on codespell's default dictionnary. Signed-off-by: Frederic Bonnard <frediz@linux.vnet.ibm.com> Reviewed-by: Mukesh Ojha <mukesh02@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-06-20doc/device-tree: Add documentation for ibm, cpu-idle-state-* propertiesShreyas B. Prabhu1-5/+27
Add documentation for following nodes- ibm,cpu-idle-state-pmicr ibm,cpu-idle-state-pmicr-mask ibm,cpu-idle-state-psscr ibm,cpu-idle-state-psscr-mask ibm,cpu-idle-state-flags Also removing ibm,cpu-idle-state-names from FIXME since its already documented. Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
generated by cgit v1.1 at 2024-09-08 18:32:52 +0000