[PATCHv2 0/3] Add support to enable ARM PMU for EXYNOS4/5

Chanho Park chanho61.park at samsung.com
Fri Jul 27 04:08:26 EDT 2012

This patchset fixes irq numbers of ARM Performance Monitoring unit and enable it
for Perf(Performance Counter) on the exynos 4 and 5. The exynos4 and 5 use 2
more cpu core which has its own pmu. We should define pmu irq numbers according
to the number of cpus.
The pmu irq of exynos4 and 5 uses combiner-irq type.
The exynos4412 especially has 4 extra combined irq groups. We should enable the
groups beacuse two pmu irqs are there. To enable perf, we need also to implement
a set_irq_affinity function about the combiner-irq.
After this patch, we can use the perf for the exynos machine.

Changes from v1:
 - Split arm-pmu init of exynos from plat-samsung
 - Correct combined irqs of exynos4412
 - Use soc_is_xxx function instead of CONFIG_XXX to identify dynamically

Chanho Park (3):
  ARM: EXYNOS: Add set_irq_affinity function for combiner_irq
  ARM: EXYNOS: Correct combined IRQs for exynos4412
  ARM: EXYNOS: Enable PMUs for exynos4/5

 arch/arm/mach-exynos/common.c            |  137 +++++++++++++++++++++++++++---
 arch/arm/mach-exynos/include/mach/irqs.h |   11 ++-
 arch/arm/plat-samsung/devs.c             |    3 +-
 3 files changed, 135 insertions(+), 16 deletions(-)


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