kernel.git/arch/powerpc/include/asm/opal.h, branch linux-3.12.y

powerpc/powernv: Return secondary CPUs to firmware on kexec

2013-08-27T07:43:50Z

With OPAL v3 we can return secondary CPUs to firmware on kexec. This allows firmware to do various cleanups making things generally more reliable, and will enable the "new" kernel to call OPAL to perform some reconfiguration tasks early on that can only be done while all the CPUs are in firmware. Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Add PIO accessors for Power8 LPC bus

2013-08-14T04:58:08Z

This uses the hooks provided by CONFIG_PPC_INDIRECT_PIO to implement a set of hooks for IO port access to use the LPC bus via OPAL calls for the first 64K of IO space Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Update opal.h to add new LPC and XSCOM functions

2013-08-14T04:57:56Z

Signed-off-by: Benjamin Herrenschmidt

powernv/opal: Notifier for OPAL events

2013-06-21T06:01:50Z

This patch implements a notifier to receive a notification on OPAL event mask changes. The notifier is only called as a result of an OPAL interrupt, which will happen upon reception of FSP messages or PCI errors. Any event mask change detected as a result of opal_poll_events() will not result in a notifier call. [benh: changelog] Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt

powerpc/eeh: Sync OPAL API with firmware

2013-06-20T07:06:17Z

The patch synchronizes OPAL APIs between kernel and firmware. Also, we starts to replace opal_pci_get_phb_diag_data() with the similar opal_pci_get_phb_diag_data2() and the former OPAL API would return OPAL_UNSUPPORTED from now on. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Detect OPAL v3 API version

2013-05-14T05:10:02Z

Future firmwares will support that new version Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Improve kexec reliability

2013-05-10T06:59:18Z

We add a machine_shutdown hook that frees the OPAL interrupts (so they get masked at the source and don't fire while kexec'ing) and which triggers an IODA reset on all the PCIe host bridges which will have the effect of blocking all DMAs and subsequent PCIs interrupts. Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Patch MSI EOI handler on P8

2013-04-26T06:09:59Z

The EOI handler of MSI/MSI-X interrupts for P8 (PHB3) need additional steps to handle the P/Q bits in IVE before EOIing the corresponding interrupt. The patch changes the EOI handler to cover that. we have individual IRQ chip in each PHB instance. During the MSI IRQ setup time, the IRQ chip is copied over from the original one for that IRQ, and the EOI handler is patched with the one that will handle the P/Q bits (As Ben suggested). Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Update OPAL interfaces

2011-12-07T07:02:02Z

This adds some more interfaces for OPAL v2 Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Machine check and other system interrupts

2011-09-20T06:10:03Z

OPAL can handle various interrupt for us such as Machine Checks (it performs all sorts of recovery tasks and passes back control to us with informations about the error), Hardware Management Interrupts and Softpatch interrupts. This wires up the mechanisms and prints out specific informations returned by HAL when a machine check occurs. Signed-off-by: Benjamin Herrenschmidt