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Merge branch 'for-linus-2' of git://git.linaro.org/people/rmk/linux-arm

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Pull ARM updates (part two) from Russell King:

 - breakpoint and perf updates from Will Deacon.

 - hypervisor boot mode updates from Will.

 - support for Power State Coordination Interface via the Hypervisor

 - core ARM support for KVM

* 'for-linus-2' of git://git.linaro.org/people/rmk/linux-arm: (32 commits)
  KVM: ARM: Add maintainer entry for KVM/ARM
  KVM: ARM: Power State Coordination Interface implementation
  KVM: ARM: Handle I/O aborts
  KVM: ARM: Handle guest faults in KVM
  KVM: ARM: VFP userspace interface
  KVM: ARM: Demux CCSIDR in the userspace API
  KVM: ARM: User space API for getting/setting co-proc registers
  KVM: ARM: Emulation framework and CP15 emulation
  KVM: ARM: World-switch implementation
  KVM: ARM: Inject IRQs and FIQs from userspace
  KVM: ARM: Memory virtualization setup
  KVM: ARM: Hypervisor initialization
  KVM: ARM: Initial skeleton to compile KVM support
  ARM: Section based HYP idmap
  ARM: Add page table and page defines needed by KVM
  ARM: perf: simplify __hw_perf_event_init err handling
  ARM: perf: remove unnecessary checks for idx < 0
  ARM: perf: handle armpmu_register failing
  ARM: perf: don't pretend to support counting of L1I writes
  ARM: perf: remove redundant NULL check on cpu_pmu
  ...
This commit is contained in:
Linus Torvalds 2013-02-20 14:29:37 -08:00
commit 6db167dfc0
57 changed files with 7029 additions and 103 deletions
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55
Documentation/devicetree/bindings/arm/psci.txt Normal file
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* Power State Coordination Interface (PSCI)
Firmware implementing the PSCI functions described in ARM document number
ARM DEN 0022A ("Power State Coordination Interface System Software on ARM
processors") can be used by Linux to initiate various CPU-centric power
operations.
Issue A of the specification describes functions for CPU suspend, hotplug
and migration of secure software.
Functions are invoked by trapping to the privilege level of the PSCI
firmware (specified as part of the binding below) and passing arguments
in a manner similar to that specified by AAPCS:
r0 => 32-bit Function ID / return value
{r1 - r3} => Parameters
Note that the immediate field of the trapping instruction must be set
to #0.
Main node required properties:
- compatible : Must be "arm,psci"
- method : The method of calling the PSCI firmware. Permitted
values are:
"smc" : SMC #0, with the register assignments specified
in this binding.
"hvc" : HVC #0, with the register assignments specified
in this binding.
Main node optional properties:
- cpu_suspend : Function ID for CPU_SUSPEND operation
- cpu_off : Function ID for CPU_OFF operation
- cpu_on : Function ID for CPU_ON operation
- migrate : Function ID for MIGRATE operation
Example:
psci {
compatible = "arm,psci";
method = "smc";
cpu_suspend = <0x95c10000>;
cpu_off = <0x95c10001>;
cpu_on = <0x95c10002>;
migrate = <0x95c10003>;
};