linux.git/arch/powerpc/include/asm/opal.h, branch v3.11

powernv/opal: Notifier for OPAL events

2013-06-21T06:01:50+00:00

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

2013-06-20T07:06:17+00:00

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

2013-05-14T05:10:02+00:00

Future firmwares will support that new version

Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Improve kexec reliability

2013-05-10T06:59:18+00:00

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

2013-04-26T06:09:59+00:00

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

2011-12-07T07:02:02+00:00

This adds some more interfaces for OPAL v2

Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Machine check and other system interrupts

2011-09-20T06:10:03+00:00

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

powerpc/powernv: Add RTC and NVRAM support plus RTAS fallbacks

2011-09-20T06:09:57+00:00

Implements OPAL RTC and NVRAM support and wire all that up to
the powernv platform.

We use RTAS for RTC as a fallback if available. Using RTAS for nvram
is not supported yet, pending some rework/cleanup and generalization
of the pSeries & CHRP code. We also use RTAS fallbacks for power off
and reboot

Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Support for OPAL console

2011-09-20T06:09:54+00:00

This adds a udbg and an hvc console backend for supporting a console
using the OPAL console interfaces.

On OPAL v1 we have hvc0 mapped to whatever console the system was
configured for (network or hvsi serial port) via the service
processor.

On OPAL v2 we have hvcN mapped to the Nth console provided by OPAL
which generally corresponds to:

	hvc0 : network console (raw protocol)
	hvc1 : serial port S1 (hvsi)
	hvc2 : serial port S2 (hvsi)

Note: At this point, early debug console only works with OPAL v1
and shouldn't be enabled in a normal kernel.

Signed-off-by: Benjamin Herrenschmidt

powerpc/powernv: Basic support for OPAL

2011-09-20T06:09:50+00:00

Add definition of OPAL interfaces along with  the wrappers to call
into OPAL runtime and the early device-tree parsing hook to locate
the OPAL runtime firmware.

Signed-off-by: Benjamin Herrenschmidt