From: lorenzo.pieralisi@arm.com (Lorenzo Pieralisi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 2/7] ARM: kernel: update topology to use new MPIDR macros
Date: Mon, 19 Nov 2012 12:45:01 +0000 [thread overview]
Message-ID: <1353329106-24084-3-git-send-email-lorenzo.pieralisi@arm.com> (raw)
In-Reply-To: <1353329106-24084-1-git-send-email-lorenzo.pieralisi@arm.com>
This patch updates the topology initialization code to use the newly
defined accessors to retrieve the MPIDR affinity levels.
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
---
arch/arm/kernel/topology.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index 4642c7d..cba99bd 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c
@@ -262,19 +262,14 @@ void store_cpu_topology(unsigned int cpuid)
if (mpidr & MPIDR_MT_BITMASK) {
/* core performance interdependency */
- cpuid_topo->thread_id = (mpidr >> MPIDR_LEVEL0_SHIFT)
- & MPIDR_LEVEL0_MASK;
- cpuid_topo->core_id = (mpidr >> MPIDR_LEVEL1_SHIFT)
- & MPIDR_LEVEL1_MASK;
- cpuid_topo->socket_id = (mpidr >> MPIDR_LEVEL2_SHIFT)
- & MPIDR_LEVEL2_MASK;
+ cpuid_topo->thread_id = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+ cpuid_topo->core_id = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+ cpuid_topo->socket_id = MPIDR_AFFINITY_LEVEL(mpidr, 2);
} else {
/* largely independent cores */
cpuid_topo->thread_id = -1;
- cpuid_topo->core_id = (mpidr >> MPIDR_LEVEL0_SHIFT)
- & MPIDR_LEVEL0_MASK;
- cpuid_topo->socket_id = (mpidr >> MPIDR_LEVEL1_SHIFT)
- & MPIDR_LEVEL1_MASK;
+ cpuid_topo->core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+ cpuid_topo->socket_id = MPIDR_AFFINITY_LEVEL(mpidr, 1);
}
} else {
/*
--
1.7.12
next prev parent reply other threads:[~2012-11-19 12:45 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-19 12:44 [PATCH v4 0/7] ARM: multi-cluster aware boot protocol Lorenzo Pieralisi
2012-11-19 12:45 ` [PATCH v4 1/7] ARM: kernel: enhance MPIDR macro definitions Lorenzo Pieralisi
2012-11-19 13:44 ` Will Deacon
2012-11-19 15:37 ` Nicolas Pitre
2012-11-19 12:45 ` Lorenzo Pieralisi [this message]
2012-11-19 13:45 ` [PATCH v4 2/7] ARM: kernel: update topology to use new MPIDR macros Will Deacon
2012-11-19 15:38 ` Nicolas Pitre
2012-11-19 12:45 ` [PATCH v4 3/7] ARM: kernel: smp_setup_processor_id() updates Lorenzo Pieralisi
2012-11-19 13:45 ` Will Deacon
2012-11-19 12:45 ` [PATCH v4 4/7] ARM: kernel: add device tree init map function Lorenzo Pieralisi
2012-11-19 13:54 ` Mark Rutland
2012-11-19 14:07 ` Lorenzo Pieralisi
2012-11-19 12:45 ` [PATCH v4 5/7] ARM: kernel: add cpu logical map DT init in setup_arch Lorenzo Pieralisi
2012-11-19 12:45 ` [PATCH v4 6/7] ARM: kernel: add logical mappings look-up Lorenzo Pieralisi
2012-11-19 12:45 ` [PATCH v4 7/7] ARM: gic: use a private mapping for CPU target interfaces Lorenzo Pieralisi
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