talos-skiboot/doc/opal-api, branch master

opal/hmi: Add documentation for opal_handle_hmi2 call

2018-04-17T08:52:10+00:00

Signed-off-by: Mahesh Salgaonkar Signed-off-by: Stewart Smith

phb4: set PBCQ Tunnel BAR for tunneled operations

2018-03-02T02:36:53+00:00

P9 supports PCI tunneled operations (atomics and as_notify) that are initiated by devices. A subset of the tunneled operations require a response, that must be sent back from the host to the device. For example, an atomic compare and swap will return the compare status, as swap will only performed in case of success. Similarly, as_notify reports if the target thread has been woken up or not, because the operation may fail. To enable tunneled operations, a device driver must tell the host where it expects tunneled operation responses, by setting the PBCQ Tunnel BAR Response register with a specific value within the range of its BARs. This register is currently initialized by enable_capi_mode(). But, as tunneled operations may also operate in PCI mode, a new API is required to set the PBCQ Tunnel BAR Response register, without switching to CAPI mode. This patch provides two new OPAL calls to get/set the PBCQ Tunnel BAR Response register. Note: as there is only one PBCQ Tunnel BAR register, shared between all the devices connected to the same PHB, only one of these devices will be able to use tunneled operations, at any time. Signed-off-by: Philippe Bergheaud Reviewed-by: Frederic Barrat Signed-off-by: Stewart Smith

doc/opal-api: Document changes of adding interrupt-parent property under /ibm, opal/ipmi node on POWER9 and above.

2018-03-02T02:36:53+00:00

Signed-off-by: Pridhiviraj Paidipeddi Signed-off-by: Stewart Smith

doc/opal-api: Document using stdout-path property

2018-03-02T02:27:01+00:00

Signed-off-by: Pridhiviraj Paidipeddi Signed-off-by: Stewart Smith

npu2-opencapi: Add OpenCAPI OPAL API calls

2018-03-02T02:17:54+00:00

Add three OPAL API calls that are required by the ocxl driver. - OPAL_NPU_SPA_SETUP The Shared Process Area (SPA) is a table containing one entry (a "Process Element") per memory context which can be accessed by the OpenCAPI device. - OPAL_NPU_SPA_CLEAR_CACHE The NPU keeps a cache of recently accessed memory contexts. When a Process Element is removed from the SPA, the cache for the link must be cleared. - OPAL_NPU_TL_SET The Transaction Layer specification defines several templates for messages to be exchanged on the link. During link setup, the host and device must negotiate what templates are supported on both sides and at what rates those messages can be sent. Signed-off-by: Frederic Barrat Signed-off-by: Andrew Donnellan Signed-off-by: Stewart Smith

opal-api: Re-jig OPAL API numbers because OpenCAPI kernel merge

2018-02-21T03:41:21+00:00

74d656d219b98ef3b96f92439337aa6392a7577d added OPAL APIs to kernel (and this commit is now in Linus' tree) that hadn't yet made their way to OPAL. Also, be slightly grumbly about it. Signed-off-by: Stewart Smith

sensor-groups: occ: Add support to disable/enable sensor group

2018-02-21T02:28:08+00:00

This patch adds a new opal call to enable/disable a sensor group. This call is used to select the sensor groups that needs to be copied to main memory by OCC at runtime. Signed-off-by: Shilpasri G Bhat [stewart: rebase and bump OPAL API number] Signed-off-by: Stewart Smith

sensors: Support reading u64 sensor values

2018-02-21T00:58:19+00:00

This patch adds support to read u64 sensor values. This also adds changes to the core and the backend implementation code to make this API as the base call. Host can use this new API to read sensors upto 64bits. This adds a list to store the pointer to the kernel u32 buffer, for older kernels making async sensor u32 reads. Signed-off-by: Shilpasri G Bhat Signed-off-by: Stewart Smith

core: Add support for quiescing OPAL

2017-12-04T04:10:55+00:00

Quiescing is ensuring all host controlled CPUs (except the current one) are out of OPAL and prevented from entering. This can be use in debug and shutdown paths, particularly with system reset sequences. This patch adds per-CPU entry and exit tracking for OPAL calls, and adds logic to "hold" or "reject" at entry time, if OPAL is quiesced. An OPAL call is added, to expose the functionality to Linux, where it can be used for shutdown, kexec, and before generating sreset IPIs for debugging (so the debug code does not recurse into OPAL). Signed-off-by: Nicholas Piggin Signed-off-by: Stewart Smith

Document fsp-ipl-params to sp-ipl-params

2017-11-10T04:33:05+00:00

Fixes: eb858339cae8240367c82e6c2cc139519dbddb26 Signed-off-by: Stewart Smith