linux-toradex.git/arch/powerpc/include/asm/firmware.h, branch v3.10.92

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/pseries: Update CPU maps when device tree is updated

2013-04-26T06:08:23+00:00

Platform events such as partition migration or the new PRRN firmware
feature can cause the NUMA characteristics of a CPU to change, and these
changes will be reflected in the device tree nodes for the affected
CPUs.

This patch registers a handler for Open Firmware device tree updates
and reconfigures the CPU and node maps whenever the associativity
changes. Currently, this is accomplished by marking the affected CPUs in
the cpu_associativity_changes_mask and allowing
arch_update_cpu_topology() to retrieve the new associativity information
using hcall_vphn().

Protecting the NUMA cpu maps from concurrent access during an update
operation will be addressed in a subsequent patch in this series.

Signed-off-by: Nathan Fontenot 
Signed-off-by: Benjamin Herrenschmidt

powerpc/pseries: Update firmware_has_feature() to check architecture vector 5 bits

2013-04-26T06:08:22+00:00

The firmware_has_feature() function makes it easy to check for supported
features of the hypervisor. This patch extends the capability of
firmware_has_feature() to include checking for specified bits
in vector 5 of the architecture vector as reported in the device tree.

As part of this the #defines used for the architecture vector are re-defined
such that each option has the index into vector 5 and the feature bit encoded
into it. This makes checking for architecture bits when initiating data
for firmware_has_feature much easier.

Signed-off-by: Nathan Fontenot 
Signed-off-by: Benjamin Herrenschmidt

powerpc/pseries: Use ARRAY_SIZE to iterate over firmware_features_table array

2013-04-26T06:08:21+00:00

When iterating over the entries in firmware_features_table we only need
to go over the actual number of entries in the array instead of declaring
it to be bigger and checking to make sure there is a valid entry in every
slot.

This patch removes the FIRMWARE_MAX_FEATURES #define and replaces the
array looping with the use of ARRAY_SIZE().

Signed-off-by: Nathan Fontenot 
Signed-off-by: Benjamin Herrenschmidt

powerpc/pseries: Cleanup best_energy_hcall detection

2013-01-10T04:08:37+00:00

Currently we search for the best_energy hcall using a custom function.  Move
this to using the firmware_feature_table.

Signed-off-by: Michael Neuling 
cc: Vaidyanathan Srinivasan 
cc: Linux PPC dev 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Add set_mode hcall

2012-11-15T04:08:06+00:00

This new hcall in POWER8 is used to set various resource mode registers.
eg. it can set address translation mode on interrupt (note: partition wide
scope)

Signed-off-by: Ian Munsie 
Signed-off-by: Michael Neuling 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Remove FW_FEATURE ISERIES from arch code

2012-03-21T00:16:11+00:00

This is no longer selectable, so just remove all the dependent code.

Signed-off-by: Stephen Rothwell 
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

powerpc/pseries: Add page coalescing support

2011-05-04T06:02:21+00:00

Adds support for page coalescing, which is a feature on IBM Power servers
which allows for coalescing identical pages between logical partitions.
Hint text pages as coalesce candidates, since they are the most likely
pages to be able to be coalesced between partitions. This patch also
exports some page coalescing statistics available from firmware via
lparcfg.

[BenH: Moved a couple of things around to fix compile problems]

Signed-off-by: Brian King 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Add VPHN firmware feature

2010-11-29T04:48:22+00:00

This simple patch adds the firmware feature for VPHN to the firmware
features bitmask.

Signed-off-by: Jesse Larrew 
Signed-off-by: Benjamin Herrenschmidt