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'''Cortex-A72''' (codename '''Maya''') is the successor to the {{armh|Cortex-A57|l=arch}}, a low-power high-performance [[ARM]] [[microarchitecture]] designed by [[ARM Holdings]] for the mobile market. This microarchitecture is designed as a synthesizable [[IP core]] and is sold to other semiconductor companies to be implemented in their own chips. The Cortex-A72, which implemented the {{arm|ARMv8}} ISA, is the a performant core which is often combined with a number of lower power cores (e.g. {{\\|Cortex-A53}}) in a {{armh|big.LITTLE}} configuration to achieve better energy/performance.
 
'''Cortex-A72''' (codename '''Maya''') is the successor to the {{armh|Cortex-A57|l=arch}}, a low-power high-performance [[ARM]] [[microarchitecture]] designed by [[ARM Holdings]] for the mobile market. This microarchitecture is designed as a synthesizable [[IP core]] and is sold to other semiconductor companies to be implemented in their own chips. The Cortex-A72, which implemented the {{arm|ARMv8}} ISA, is the a performant core which is often combined with a number of lower power cores (e.g. {{\\|Cortex-A53}}) in a {{armh|big.LITTLE}} configuration to achieve better energy/performance.
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== Compiler support ==
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{| class="wikitable"
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|-
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! Compiler !! Arch-Specific || Arch-Favorable
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|-
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| [[Arm Compiler]] || <code>-mcpu=cortex-a72</code> || <code>-mtune=cortex-a72</code>
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|-
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| [[GCC]] || <code>-mcpu=cortex-a72</code> || <code>-mtune=cortex-a72</code>
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|-
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| [[LLVM]] || <code>-mcpu=cortex-a72</code> || <code>-mtune=cortex-a72</code>
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|}
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If the Cortex-A72 is coupled with the {{\\|Cortex-A53}} or the {{\\|Cortex-A35}} in a [[big.LITTLE]] system, GCC also supports the following option:
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{| class="wikitable"
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|-
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! Compiler !! Tune
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|-
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| [[GCC]] || <code>-mtune=cortex-a72.cortex-a53</code><br><code>-mtune=cortex-a72.cortex-a35</code>
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|}
  
 
== Architecture ==
 
== Architecture ==

Revision as of 13:44, 31 December 2018

Edit Values
Cortex-A72 µarch
General Info
Arch TypeCPU
DesignerARM Holdings
ManufacturerTSMC
IntroductionApril 23, 2015
Instructions
ISAARMv8
Succession

Cortex-A72 (codename Maya) is the successor to the Cortex-A57, a low-power high-performance ARM microarchitecture designed by ARM Holdings for the mobile market. This microarchitecture is designed as a synthesizable IP core and is sold to other semiconductor companies to be implemented in their own chips. The Cortex-A72, which implemented the ARMv8 ISA, is the a performant core which is often combined with a number of lower power cores (e.g. Cortex-A53) in a big.LITTLE configuration to achieve better energy/performance.

Compiler support

Compiler Arch-Specific Arch-Favorable
Arm Compiler -mcpu=cortex-a72 -mtune=cortex-a72
GCC -mcpu=cortex-a72 -mtune=cortex-a72
LLVM -mcpu=cortex-a72 -mtune=cortex-a72

If the Cortex-A72 is coupled with the Cortex-A53 or the Cortex-A35 in a big.LITTLE system, GCC also supports the following option:

Compiler Tune
GCC -mtune=cortex-a72.cortex-a53
-mtune=cortex-a72.cortex-a35

Architecture

Key changes from Cortex-A57

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Block Diagram

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Memory Hierarchy

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Die

MediaTek Helio X20

  • TSMC 20 nm process
  • 100 mm² die size
  • Quad-core ULP Cortex-A53
    • ~21.81 mm² per cluster
      • ~4.23 mm² per core
  • Quad-core efficient Cortex-A53
    • ~29.73 mm² per cluster
      • ~5.41 mm² per core
  • Dual-core High-performance Cortex-A72 + 1 MiB L2
    • ~27.36 mm² per cluster
      • ~ 9.60 mm² per core
      • ~ 7.50 mm² for 1 MiB L2


mt6797 die.png

Bibliography

  • Mair, Hugh T., et al. "4.3 A 20nm 2.5 GHz ultra-low-power tri-cluster CPU subsystem with adaptive power allocation for optimal mobile SoC performance." Solid-State Circuits Conference (ISSCC), 2016 IEEE International. IEEE, 2016.
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Facts about "Cortex-A72 - Microarchitectures - ARM"
RDF feed
codenameCortex-A72 +
designerARM Holdings +
first launchedApril 23, 2015 +
full page namearm holdings/microarchitectures/cortex-a72 +
instance ofmicroarchitecture +
instruction set architectureARMv8 +
manufacturerTSMC +
microarchitecture typeCPU +
nameCortex-A72 +