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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-19 11:44:15 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-19 11:44:15 -0800 |
commit | dec8e46178bad9f1717a948572d76e0f804be801 (patch) | |
tree | d0feaa9474f4406cb220cccdb7d39a3d031f00a6 /Documentation | |
parent | 806dace637e4d37a5569c3e2345adcbd473b3d12 (diff) | |
parent | cd5dfd0e1685530cb3159dec2d2a95421104093d (diff) | |
download | linux-dec8e46178bad9f1717a948572d76e0f804be801.tar.gz linux-dec8e46178bad9f1717a948572d76e0f804be801.tar.bz2 linux-dec8e46178bad9f1717a948572d76e0f804be801.zip |
Merge tag 'arc-v3.13-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull second set of ARC changes from Vineet Gupta:
- Support for Perf from Mischa
- Enabling GPIO/Pinctrl drivers for Abilis TB10x platform
- New defconfig for buildroot
* tag 'arc-v3.13-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: [plat-arcfpga] Add defconfig without initramfs location
ARC: perf: ARC 700 PMU doesn't support sampling events
ARC: Add documentation on DT binding for ARC700 PMU
ARC: Add perf support for ARC700 cores
ARC: [TB10x] Updates for GPIO and pinctrl
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/arc/pmu.txt | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arc/pmu.txt b/Documentation/devicetree/bindings/arc/pmu.txt new file mode 100644 index 000000000000..49d517340de3 --- /dev/null +++ b/Documentation/devicetree/bindings/arc/pmu.txt @@ -0,0 +1,24 @@ +* ARC Performance Monitor Unit + +The ARC 700 can be configured with a pipeline performance monitor for counting +CPU and cache events like cache misses and hits. + +Note that: + * ARC 700 refers to a family of ARC processor cores; + - There is only one type of PMU available for the whole family; + - The PMU may support different sets of events; supported events are probed + at boot time, as required by the reference manual. + + * The ARC 700 PMU does not support interrupts; although HW events may be + counted, the HW events themselves cannot serve as a trigger for a sample. + +Required properties: + +- compatible : should contain + "snps,arc700-pmu" + +Example: + +pmu { + compatible = "snps,arc700-pmu"; +}; |