]> git.karo-electronics.de Git - linux-beck.git/commit
arm64: pmu: add support for interrupt-affinity property
authorWill Deacon <will.deacon@arm.com>
Fri, 6 Mar 2015 11:54:10 +0000 (11:54 +0000)
committerWill Deacon <will.deacon@arm.com>
Tue, 24 Mar 2015 15:09:47 +0000 (15:09 +0000)
commitd5efd9cc9cf2e422d064c912c7d5d985f52c1b2c
treeec4a29ce1df9016b48597888d55e925f3bdf4ac5
parent71bbf038eaa44a80dd6df0da7c708d4618172fe0
arm64: pmu: add support for interrupt-affinity property

Historically, the PMU devicetree bindings have expected SPIs to be
listed in order of *logical* CPU number. This is problematic for
bootloaders, especially when the boot CPU (logical ID 0) isn't listed
first in the devicetree.

This patch adds a new optional property, interrupt-affinity, to the
PMU node which allows the interrupt affinity to be described using
a list of phandled to CPU nodes, with each entry in the list
corresponding to the SPI at the same index in the interrupts property.

Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/arm64/include/asm/pmu.h
arch/arm64/kernel/perf_event.c