kernel.git/arch/powerpc/include/asm/opal-api.h, branch linux-4.14.y

powerpc/powernv: Add support to clear sensor groups data

2017-08-10T12:40:05Z

Adds support for clearing different sensor groups. OCC inband sensor groups like CSM, Profiler, Job Scheduler can be cleared using this driver. The min/max of all sensors belonging to these sensor groups will be cleared. Signed-off-by: Shilpasri G Bhat Signed-off-by: Michael Ellerman

powerpc/powernv: Add support to set power-shifting-ratio

2017-08-10T12:40:01Z

This patch adds support to set power-shifting-ratio which hints the firmware how to distribute/throttle power between different entities in a system (e.g CPU v/s GPU). This ratio is used by OCC for power capping algorithm. Signed-off-by: Shilpasri G Bhat Signed-off-by: Michael Ellerman

powerpc/powernv: Add support for powercap framework

2017-08-10T12:39:53Z

Adds a generic powercap framework to change the system powercap inband through OPAL-OCC command/response interface. Signed-off-by: Shilpasri G Bhat Signed-off-by: Michael Ellerman

powerpc/powernv: Enable PCI peer-to-peer

2017-08-08T01:27:30Z

P9 has support for PCI peer-to-peer, enabling a device to write in the MMIO space of another device directly, without interrupting the CPU. This patch adds support for it on powernv, by adding a new API to be called by drivers. The pnv_pci_set_p2p(...) call configures an 'initiator', i.e the device which will issue the MMIO operation, and a 'target', i.e. the device on the receiving side. P9 really only supports MMIO stores for the time being but that's expected to change in the future, so the API allows to define both load and store operations. /* PCI p2p descriptor */ #define OPAL_PCI_P2P_ENABLE 0x1 #define OPAL_PCI_P2P_LOAD 0x2 #define OPAL_PCI_P2P_STORE 0x4 int pnv_pci_set_p2p(struct pci_dev *initiator, struct pci_dev *target, u64 desc) It uses a new OPAL call, as the configuration magic is done on the PHBs by skiboot. Signed-off-by: Frederic Barrat Reviewed-by: Russell Currey [mpe: Drop unrelated OPAL calls, s/uint64_t/u64/, minor formatting] Signed-off-by: Michael Ellerman

powerpc/powernv: Add IMC OPAL APIs

2017-07-24T13:00:22Z

In-Memory Collection (IMC) counters are performance monitoring infrastructure. These counters need special sequence of SCOMs to init/start/stop which is handled by OPAL. And OPAL provides three APIs to init and control these IMC engines. OPAL API documentation: https://github.com/open-power/skiboot/blob/master/doc/opal-api/opal-imc-counters.rst Patch updates the kernel side powernv platform code to support the new OPAL APIs Signed-off-by: Hemant Kumar Signed-off-by: Anju T Sudhakar Signed-off-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman

powerpc/powernv: Tell OPAL about our MMU mode on POWER9

2017-07-10T11:12:27Z

That will allow OPAL to configure the CPU in an optimal way. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Michael Neuling Signed-off-by: Michael Ellerman

cxl: Export library to support IBM XSL

2017-07-03T13:07:03Z

This patch exports a in-kernel 'library' API which can be called by other drivers to help interacting with an IBM XSL on a POWER9 system. The XSL (Translation Service Layer) is a stripped down version of the PSL (Power Service Layer) used in some cards such as the Mellanox CX5. Like the PSL, it implements the CAIA architecture, but has a number of differences, mostly in it's implementation dependent registers. The XSL also uses a special DMA cxl mode, which uses a slightly different init sequence for the CAPP and PHB. Signed-off-by: Andrew Donnellan Signed-off-by: Christophe Lombard Acked-by: Frederic Barrat Signed-off-by: Michael Ellerman

powerpc/powernv/pci: Add support for PHB4 diagnostics

2017-06-27T02:14:27Z

As with P7IOC and PHB3, add kernel-side support for decoding and printing diagnostic data for PHB4. Signed-off-by: Russell Currey Signed-off-by: Michael Ellerman

Merge branch 'topic/xive' (early part) into next

2017-04-12T12:31:37Z

This merges the arch part of the XIVE support, leaving the final commit with the KVM specific pieces dangling on the branch for Paul to merge via the kvm-ppc tree.

powerpc/powernv: Add XIVE related definitions to opal-api.h

2017-04-06T09:58:46Z

Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Michael Ellerman