From mboxrd@z Thu Jan 1 00:00:00 1970 From: eric@anholt.net (Eric Anholt) Date: Thu, 17 May 2018 18:09:34 +0100 Subject: [PATCH] arm: bcm2835: Add the PMU to the devicetree. In-Reply-To: References: <20180517131727.29263-1-eric@anholt.net> <1412187220.62585.1526572780332@email.1und1.de> Message-ID: <877eo2mcoh.fsf@anholt.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Vince Weaver writes: > On Thu, 17 May 2018, Stefan Wahren wrote: > >> >> > Eric Anholt hat am 17. Mai 2018 um 15:17 geschrieben: >> > >> > >> > The a53 and a7 counters seem to match up, so we advertise a7 so that >> > arm32 can probe. > > so how closely did you look at the a53/a7 differences? I see some major > differences, especially with the CPU_CYCLES event (0xff vs 0x11). I'm a bit lost in the code, but it seemed like the 0xff was a placeholder for a bit of special behavior, but that the cpu_cycles -> ARMV7_PERFCTR_CLOCK_CYCLES mapping got you that same value in the end. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 832 bytes Desc: not available URL: