[PATCH 2/3] ARM: dts: sun8i: R40: Add PMU node

Maxime Ripard mripard at kernel.org
Thu Jan 2 01:32:11 PST 2020


On Thu, Jan 02, 2020 at 01:26:56AM +0000, Andre Przywara wrote:
> The ARM Cortex-A7 cores used in the Allwinner R40 SoC have their usual
> Performance Monitoring Unit (PMU), which allows perf to use hardware
> events.
> The SoC integrator just needs to connect each per-core interrupt line
> to the GIC. The R40 manual does not really mention those IRQ lines, but
> experimentation in U-Boot shows that interrupts 152-155 are connected to
> the four cores (similar to the A20).
>
> Tested on a Bananapi M2 Berry, with perf and taskset to confirm the
> association between cores and interrupts.
>
> Signed-off-by: Andre Przywara <andre.przywara at arm.com>

Applied, thanks!
Maxime
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 228 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20200102/f15ae8c6/attachment.sig>


More information about the linux-arm-kernel mailing list