From mboxrd@z Thu Jan 1 00:00:00 1970 From: robherring2@gmail.com (Rob Herring) Date: Mon, 11 Mar 2013 21:26:34 -0500 Subject: [PATCH 0/3] ARM sched_clock selection enhancements Message-ID: <1363055197-17296-1-git-send-email-robherring2@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Rob Herring In preparation to move more timer initialization to use CLKSRC_OF and out of the platforms, a way to select the timer used for sched_clock is needed. This series makes the ARM sched_clock support code prefer 64-bit counters or higher frequency counters. This is sufficient at least on ARM Ltd boards to use the 24MHz counter rather than sp804 and to always use the 64-bit architected timer when present. This mechanism can be extended to DT properties if needed for any non-discoverable h/w feature. Rob Rob Herring (3): ARM: sched_clock: allow changing to higher frequency counter ARM: sched_clock: support 64-bit counters ARM: arch_timer: use the 64-bit sched_clock setup arch/arm/include/asm/sched_clock.h | 1 + arch/arm/kernel/arch_timer.c | 8 +------- arch/arm/kernel/sched_clock.c | 35 ++++++++++++++++++++++++++++++++--- 3 files changed, 34 insertions(+), 10 deletions(-) -- 1.7.10.4