From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Tue, 9 Aug 2011 22:42:34 +0100 Subject: [RFC PATCH 0/8] Introduce logical CPU mapping Message-ID: <1312926162-22469-1-git-send-email-will.deacon@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hello, This patch series is an RFC following a discussion I had with Russell the other day: http://lists.infradead.org/pipermail/linux-arm-kernel/2011-August/060370.html The approach I've taken is fairly simple but is enough for booting on a CPU with physical ID != 0 on platforms which can handle it. Note that I haven't touched the OMAP4 or Tegra platforms since it's not clear from the code how they would be adapted to make use of the physical CPU number. I've tested this with a Cortex-A9 on the vexpress platform but other platforms have been compile-tested only. This is an RFC, so I'd value any feedback or comments. Thanks, Will Will Deacon (8): ARM: cpuid: add support for reading MPIDR ARM: smp: populate logical CPU mapping during boot ARM: gic: convert logical CPU numbers into physical numbers ARM: exynos4: convert logical CPU numbers to physical numbers ARM: msm: convert logical CPU numbers to physical numbers ARM: shmobile: convert logical CPU numbers to physical numbers ARM: ux500: convert logical CPU numbers to physical numbers ARM: versatile: convert logical CPU numbers to physical numbers arch/arm/common/gic.c | 12 +++++++++--- arch/arm/include/asm/cputype.h | 6 ++++++ arch/arm/include/asm/smp.h | 6 ++++++ arch/arm/kernel/smp.c | 15 +++++++++++++++ arch/arm/mach-exynos4/hotplug.c | 2 +- arch/arm/mach-exynos4/platsmp.c | 2 +- arch/arm/mach-msm/hotplug.c | 2 +- arch/arm/mach-msm/platsmp.c | 2 +- arch/arm/mach-realview/hotplug.c | 2 +- arch/arm/mach-shmobile/smp-sh73a0.c | 6 +++++- arch/arm/mach-ux500/hotplug.c | 2 +- arch/arm/mach-ux500/platsmp.c | 2 +- arch/arm/mach-vexpress/hotplug.c | 2 +- arch/arm/plat-versatile/platsmp.c | 2 +- 14 files changed, 50 insertions(+), 13 deletions(-)